3D printing device for preparing trauma orthopedic external fixation brace

Abstract

The application provides a 3D printing preparation device for a trauma orthopedic external fixation brace, relates to the technical field of orthopedic external fixation braces, and comprises a shell, a storage structure is arranged on the shell, a stirring structure is arranged in the storage structure, a feeding structure is arranged in the shell, the feeding structure corresponds to the storage structure, a moving structure is slidingly matched in the shell, a 3D printing structure is arranged on the moving structure, the 3D printing structure comprises two printing heads, the printing heads correspond to the feeding structure, a distance adjusting structure is arranged on the moving structure, the distance adjusting structure corresponds to the printing heads, and a rotating structure is arranged at the bottom of the shell. In the application, the storage structure is arranged on the shell, the moving structure is arranged in the shell, the 3D printing structure is arranged on the moving structure, the 3D printing structure comprises two printing heads, the storage and feeding can be realized through the storage structure and the feeding structure, and printing can be realized through the printing heads.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of orthopedic external fixation brace, in particular to a 3D printing preparation device for trauma orthopedic external fixation brace. BACKGROUND

[0002] The external fixation brace is a kind of external body, which is used to limit the movement of the body, so as to assist the effect of surgical treatment, or directly used for non-surgical treatment of external fixation. The traditional external fixation method is mostly to use plaster or splint attached to the body surface of the affected part, and then use bandage to tighten. Among them, the plaster fixation has good plasticity, and the plaster is very solid after drying, and the fixation is reliable. However, due to the large pressure of the plaster, the pressure ulcer is easy to occur after a long time, and the common plaster has poor air permeability, which is easy to cause eczema, skin allergy and other skin diseases. The splint fixing method is easy to cause secondary displacement after reduction, at the same time, the pressure of the pressure pad is too large to hinder the local blood circulation, aggravate the swelling of the distal limb, and produce pressure ulcer and nerve paralysis and other adverse reactions. The external fixation brace made by 3D printing can perfectly match the human body, so as to play a good supporting and clamping effect, so as to improve the treatment effect. However, the existing 3D printing usually needs to set up support structure, because the external fixation brace is usually hollow and has a certain arc structure, so more support structure is needed, which needs more printing materials, causing waste of printing materials and increasing the preparation cost.

[0003] Therefore, the present application provides a 3D printing preparation device for trauma orthopedic external fixation brace. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application aims to provide a 3D printing preparation device for trauma orthopedic external fixation brace to solve the problems in the background art. The present application can store and feed materials through the storage structure and the feeding structure, print through the print head, and two print heads can print at the same time to improve the work efficiency. Different printing materials can be used for two print heads, which can have good printing effect for external fixation braces with different internal and external materials, and can expand the application range of the device. The angle of the print head can be adjusted, which can not only increase the angle of 3D printing and expand the application range of the device, but also add support structure to prevent the support structure from limiting the movement of the print head, so as to ensure the printing effect. The support structure can be adjusted to be suitable for different models of external fixation brace, which can expand the application range of the device, and the support structure can also cool the material sprayed by the print head, so as to shorten the printing time and improve the printing efficiency.

[0005] In order to achieve the above object, the application is realized by the following technical scheme: a 3D printing preparation device for a trauma orthopedic external fixation brace, comprising a shell, a storage structure is arranged on the shell, a stirring structure is arranged in the storage structure, a feeding structure is arranged in the shell, the feeding structure corresponds to the storage structure, a moving structure is slidingly matched in the shell, a 3D printing structure is arranged on the moving structure, the 3D printing structure comprises two printing heads, the printing heads correspond to the feeding structure, a distance adjusting structure is arranged on the moving structure, the distance adjusting structure corresponds to the printing heads, a rotating structure is arranged at the bottom of the shell, a supporting structure is arranged on the rotating structure, a cooling structure is arranged at the bottom of the shell, and the cooling structure corresponds to the supporting structure and the rotating structure.

[0006] Further, the storage structure comprises a first material box and a second material box fixed on the shell, the first material box and the second material box are the same in structure, the top of the first material box and the second material box is provided with an inlet, the bottom of the first material box and the second material box is provided with an outlet, a first motor is fixed on the first material box and the second material box, and the stirring structure comprises a stirring rod rotatingly matched in the first material box and the second material box, and the stirring rod is fixedly connected with the output end of the first motor.

[0007] Further, the feeding structure comprises two material pumps, the inlet end of the material pump is communicated with the outlet, the outlet end of the material pump is fixed with a feeding pipe, and the feeding pipe is communicated with the printing head.

[0008] Further, the moving structure comprises a first electric sliding rail, the output end of the first electric sliding rail is fixed with a first sliding frame, the first sliding frame is fixed with a second electric sliding rail, the output end of the second electric sliding rail is fixed with a second sliding frame, the second sliding frame is fixed with a third electric sliding rail, the output end of the third electric sliding rail is fixed with a third sliding frame, the third sliding frame and the second sliding frame correspond to the printing head, and the distance adjusting structure corresponds to the third sliding frame.

[0009] Further, the distance adjusting structure comprises an electric cylinder fixed on the third sliding frame, the output end of the electric cylinder is fixed with a sliding block, a sliding groove is formed in one side of the second sliding frame, a first rotating frame is arranged on one side of the second sliding frame, a sliding rod is fixed on the first rotating frame, the sliding rod corresponds to the sliding groove, the first rotating frame is rotationally connected with the printing head, a connecting rod is arranged between the first rotating frame and the sliding block, the two ends of the connecting rod are rotationally connected with the first rotating frame and the sliding block respectively, a second motor is fixed on one side of the first rotating frame, and the output end of the second motor is fixedly connected with the printing head.

[0010] Further, the rotating structure comprises a rotating plate rotatably matched in the shell, a third motor is fixed at the bottom in the shell, the output end of the third motor is fixedly connected with the rotating plate, and the cooling structure comprises a water tank fixed at the bottom in the shell, and a circulating structure is arranged on the water tank and corresponds to the rotating plate and the supporting structure.

[0011] Further, a first water cavity is formed in the shell, a baffle is fixed in the rotating plate, a rubber sealing ring is fixed on the circumferential side of the baffle, a second water cavity is formed in the rotating plate, a communication port is formed in the side surface of the second water cavity, the communication port is communicated with the first water cavity, the first water cavity and the second water cavity each comprise a first cavity and a second cavity, the baffle is located between the first cavity and the second cavity, a bottom plate is arranged on the rotating plate, and a clamping fixing structure is arranged between the rotating plate and the bottom plate.

[0012] Further, the clamping fixing structure comprises a first clamping groove and a plurality of second clamping grooves formed in the rotating plate, a first clamping block and a plurality of second clamping blocks are fixed on the bottom plate, the first clamping block corresponds to the first clamping groove, the second clamping block corresponds to the second clamping groove, the supporting structure comprises a first supporting frame fixed on the bottom plate, a second rotating frame is fixed on the first supporting frame, and a second supporting frame is arranged in the second rotating frame.

[0013] Further, a rotating shaft is rotatably matched in the second rotating frame, nuts are threadedly matched at both ends of the rotating shaft, the rotating shaft is fixedly connected with the second supporting frame, a cavity is formed in the first supporting frame, a sealing gasket is fixed on the opposite inner side of the first supporting frame, a plurality of screw rods are threadedly matched on the circumferential side of the first supporting frame, one end of the screw rod is located in the cavity, and the sealing gasket corresponds to the screw rod.

[0014] Further, the circulating structure comprises a first water pump fixed on the water tank, the water inlet end of the first water pump is communicated with the water tank, the water outlet end of the first water pump is communicated with the first cavity of the first water cavity, a second water pump is fixed in the cavity, the water inlet end of the second water pump is communicated with the cavity, the water outlet end of the second water pump is communicated with the second cavity of the second water cavity, a refrigeration fin is fixed in the water tank, a plurality of heat dissipation fins are fixed on the circumferential side of the water tank, and a plurality of fans are arranged in the shell.

[0015] The beneficial effects of the present application are as follows:

[0016] 1. A material storage structure is installed on the outer shell, a moving structure is installed inside the outer shell, and a 3D printing structure is installed on the moving structure. The 3D printing structure includes two print heads, which can store and feed material through the material storage and feeding structures, and print through the print heads. The two print heads can print simultaneously, improving work efficiency. The two print heads can use different printing materials, which can achieve better printing results for external fixed supports with different inner and outer materials, expanding the applicability of the device. There is no need to change the printing material after printing the inner layer, preventing the mixing of two different printing materials. Furthermore, printing material can be added while printing is being prepared, without the need to change the material tray, thus increasing the speed of 3D printing.

[0017] 2. Installing a distance adjustment structure on the moving structure allows for adjustment of the print head position, making the device suitable for external fixed supports of different shapes and thicknesses. The angle of the print head can also be adjusted, which not only increases the 3D printing angle and expands the applicability of the device, but also adds a support structure to prevent the support structure from limiting the movement of the print head, thus ensuring the printing effect.

[0018] 3. By installing a support structure, the printed external fixation brackets can be supported, thus preventing them from collapsing. This also reduces the need for a support structure, thereby reducing the use of printing material, minimizing material waste, and lowering printing costs. Consequently, the production cost of the external fixation brackets can be reduced. Furthermore, the support structure can be adjusted to suit different models of external fixation brackets, expanding the applicability of the device. Additionally, the support structure can cool the material ejected from the print head, thereby shortening printing time and improving printing efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall assembly three-dimensional structure of the 3D printing preparation device for a trauma orthopedic external fixation brace according to the present invention.

[0020] Figure 2 This is a schematic diagram of the overall assembly cross-sectional structure of the 3D printing fabrication device for a trauma orthopedic external fixation brace according to the present invention.

[0021] Figure 3 This is a schematic diagram of the three-dimensional assembly structure of the first electric slide rail, the second electric slide rail, and the third electric slide rail in the 3D printing preparation device for a trauma orthopedic external fixation brace of the present invention.

[0022] Figure 4 This is an exploded view of the rotating plate and the base plate in the 3D printing fabrication device for an external fixation brace for trauma orthopedics according to the present invention.

[0023] Figure 5It is the assembly stereoscopic structure schematic view of the third sliding frame in the 3D printing preparation device of the external fixing brace of the trauma orthopedics department of the application;

[0024] Figure 6 It is the assembly section structure schematic view of the water tank in the 3D printing preparation device of the external fixing brace of the trauma orthopedics department of the application;

[0025] Figure 7 It is the assembly stereoscopic structure schematic view of the water tank in the 3D printing preparation device of the external fixing brace of the trauma orthopedics department of the application;

[0026] Figure 8 It is the assembly stereoscopic structure schematic view of the first support frame and the second support frame in the 3D printing preparation device of the external fixing brace of the trauma orthopedics department of the application;

[0027] Figure 9 It is the assembly section structure schematic view of the rotating plate and the first support frame in the 3D printing preparation device of the external fixing brace of the trauma orthopedics department of the application;

[0028] Figure 10 It is the assembly section structure schematic view of the rotating plate and the first support frame in the 3D printing preparation device of the external fixing brace of the trauma orthopedics department of the application; Figure 9 It is the schematic view of A in the figure;

[0029] Figure 11 It is the schematic view of B in the figure; Figure 9

[0030] In the figure: 1, shell; 2, first material tank; 3, second material tank; 4, first motor; 5, stirring rod; 6, feeding port; 7, discharging port; 8, material pump; 9, first electric sliding rail; 10, second electric sliding rail; 11, third electric sliding rail; 12, first sliding frame; 13, second sliding frame; 14, sliding groove; 15, third sliding frame; 16, electric cylinder; 17, sliding block; 18, connecting rod; 19, first rotating frame; 20, sliding rod; 21, second motor; 22, printing head; 23, feeding pipe; 24, third motor; 25, rotating plate; 26, first water cavity; 27, first cavity; 28, second cavity; 29, baffle; 30, communication port; 32, bottom plate; 33, first clamping block; 34, second clamping block; 35, first clamping groove; 36, second clamping groove; 37, first support frame; 38, second support frame; 39, second rotating frame; 40, rotating shaft; 41, nut; 42, water tank; 43, first water pump; 44, refrigeration fin; 45, heat dissipation fin; 46, fan; 49, second water pump; 50, cavity; 51, screw rod; 53, second water cavity. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, purposes and effects realized by the application easy to understand, the application is further described below in combination with specific embodiments.

[0032] ​Please refer to Figures 1 to 11 The application provides a technical scheme: a 3D printing preparation device for a trauma orthopedic external fixation brace, which comprises a shell 1, a storage structure is arranged on the shell 1, a stirring structure is arranged in the storage structure, a feeding structure is arranged in the shell 1 and corresponds to the storage structure, a moving structure is slidingly arranged in the shell 1, a 3D printing structure is arranged on the moving structure, the 3D printing structure comprises two printing heads 22, the printing heads 22 correspond to the feeding structure, a distance adjusting structure is arranged on the moving structure and corresponds to the printing heads 22, a rotating structure is arranged at the bottom of the shell 1, a supporting structure is arranged on the rotating structure, a cooling structure is arranged at the bottom of the shell 1 and corresponds to the supporting structure and the rotating structure.

[0033] In this embodiment, the storage structure comprises a first material box 2 and a second material box 3 fixed to the shell 1, the first material box 2 and the second material box 3 are the same in structure, the top of each of the first material box 2 and the second material box 3 is provided with an inlet 6, the bottom of each of the first material box 2 and the second material box 3 is provided with an outlet 7, a first motor 4 is fixed to each of the first material box 2 and the second material box 3, the stirring structure comprises a stirring rod 5 rotatingly arranged in each of the first material box 2 and the second material box 3, the stirring rod 5 is fixedly connected to the output end of the first motor 4, the feeding structure comprises two material pumps 8, the inlet of each of the material pumps 8 is in communication with the outlet 7, the outlet of each of the material pumps 8 is fixedly provided with a feeding pipe 23, the feeding pipe 23 is in communication with the printing head 22, and a heating pipe is fixedly arranged in the wall of each of the first material box 2 and the second material box 3.

[0034] Specifically, the printing material is added into the first material box 2 and the second material box 3 through the inlet 6, and then the heating section is powered on to melt the printing material, the first motor 4 is started to drive the stirring rod 5 to rotate and stir the printing material, the melting speed of the printing material is improved, then the printing material is sent into the printing head 22 through the material pump 8 and sprayed out, 3D printing can be performed, and the feeding can be performed while the 3D printing is performed, so that the work efficiency is improved, and the first material box 2 and the second material box 3 can contain different raw materials, so that the inner and outer two layers of the external fixation brace with different materials can be prepared by printing, and the work efficiency is improved.

[0035] The moving structure comprises a first electric sliding rail 9, the output end of the first electric sliding rail 9 is fixedly provided with a first sliding frame 12, the first sliding frame 12 is fixedly provided with a second electric sliding rail 10, the output end of the second electric sliding rail 10 is fixedly provided with a second sliding frame 13, the second sliding frame 13 is fixedly provided with a third electric sliding rail 11, the output end of the third electric sliding rail 11 is fixedly provided with a third sliding frame 15, the third sliding frame 15 and the second sliding frame 13 correspond to the printing head 22, and the distance adjusting structure corresponds to the third sliding frame 15.

[0036] Specifically, the first electric slide rail 9, the second electric slide rail 10 and the third electric slide rail 11 are started, so that the first electric slide rail 9 drives the first sliding frame 12 to slide, thereby driving the second electric slide rail 10 to slide left and right, and then the third electric slide rail 11 is driven by the second electric slide rail 10 to slide up and down, that is, the printhead 22 is driven to move to print, so that different shapes can be printed.

[0037] The distance adjusting structure comprises an electric cylinder 16 fixed to the third sliding frame 15, the output end of the electric cylinder 16 is fixed with a sliding block 17, the second sliding frame 13 is provided with a sliding groove 14 on one side, the second sliding frame 13 is provided with a first rotating frame 19 on one side, the first rotating frame 19 is fixed with a sliding rod 20, the sliding rod 20 corresponds to the sliding groove 14, the first rotating frame 19 is rotationally connected with the printhead 22, the first rotating frame 19 and the sliding block 17 are provided with a connecting rod 18, the two ends of the connecting rod 18 are rotationally connected with the first rotating frame 19 and the sliding block 17 respectively, the first rotating frame 19 is fixed with a second motor 21 on one side, and the output end of the second motor 21 is fixedly connected with the printhead 22.

[0038] Specifically, when two printheads 22 are used at the same time, the distance between the two printheads 22 can be adjusted according to the shape and thickness of the external fixing support, the electric cylinder 16 is started, so that the electric cylinder 16 drives the sliding block 17 to move up and down, thereby driving the first rotating frame 19 to slide through the connecting rod 18, and the first rotating frame 19 slides in the sliding groove 14 through the sliding rod 20, so as to drive the printhead 22 to slide, thereby adjusting the distance between the two printheads 22, so that the printhead 22 can better print, and the printing effect is guaranteed, and the printhead 22 can be driven to rotate by the second motor 21, so as to adjust the printing angle of the printhead 22, further expand the application range of the device, and at this time the printhead 22 will not be limited by the supporting structure, so the supporting structure can be installed, thereby reducing the waste of printing materials and reducing the printing cost.

[0039] The rotating structure comprises a rotating plate 25 rotatably fitted in the shell 1, a third motor 24 fixed at the bottom of the shell 1, and an output end of the third motor 24 fixedly connected with the rotating plate 25. The cooling structure comprises a water tank 42 fixed at the bottom of the shell 1, and a circulating structure arranged on the water tank 42 and corresponding to the rotating plate 25 and the supporting structure. A first water cavity 26 is formed in the shell 1, a baffle 29 is fixed in the rotating plate 25, a rubber sealing ring is fixed on the side of the baffle 29, a second water cavity 53 is formed in the rotating plate 25, a communication port 30 is formed on the side of the second water cavity 53, the communication port 30 is in communication with the first water cavity 26, the first water cavity 26 and the second water cavity 53 each comprise a first cavity 27 and a second cavity 28, the baffle 29 is located between the first cavity 27 and the second cavity 28, a bottom plate 32 is arranged on the rotating plate 25, a clamping and fixing structure is arranged between the rotating plate 25 and the bottom plate 32, the clamping and fixing structure comprises a first clamping groove 35 and a plurality of second clamping grooves 36 formed on the rotating plate 25, a first clamping block 33 and a plurality of second clamping blocks 34 are fixed on the bottom plate 32, the first clamping block 33 corresponds to the first clamping groove 35, and the second clamping block 34 corresponds to the second clamping groove 36. The supporting structure comprises a first supporting frame 37 fixed on the bottom plate 32, a second rotating frame 39 fixed on the first supporting frame 37, a second supporting frame 38 arranged in the second rotating frame 39, a rotating shaft 40 rotatably fitted in the second rotating frame 39, nuts 41 threadedly fitted on both ends of the rotating shaft 40, the rotating shaft 40 fixedly connected with the second supporting frame 38, a cavity 50 formed in the first supporting frame 37, a sealing gasket fixed on the opposite inner side of the first supporting frame 37, and a plurality of screw rods 51 threadedly fitted on the side of the first supporting frame 37, one end of the screw rod 51 located in the cavity 50, and the sealing gasket corresponding to the screw rod 51.

[0040] Specifically, when the support structure is used, the bottom plate 32 is placed on the rotating plate 25, so that the first clamping block 33 enters the first clamping slot 35, the second clamping block 34 enters the second clamping slot 36, the first clamping block 33 and the first clamping slot 35 form a clamping relationship, and the second clamping block 34 and the second clamping slot 36 form a clamping relationship, so that the installation of the bottom plate 32 can be realized, so that the first support frame 37 and the second support frame 38 can be supported, and the angle of the second support frame 38 can be adjusted according to different models, the screw rod 51 can be rotated, and the screw rod 51 can be used for auxiliary support, thereby expanding the application range of the device, making the device suitable for different shapes and models of external fixation brace, thereby achieving good support effect on the external fixation brace formed by printing, reducing the printing material required for support, thereby reducing material waste and reducing the cost of the external fixation brace; during printing, the angle and left-right position of the print head 22 can be fixed, the print head 22 only moves up and down, and at this time the third motor 24 drives the rotating plate 25 to rotate, thereby driving the first support frame 37 and the second support frame 38 to rotate, so that the external fixation brace can be printed on the surface of the first support frame 37 and the second support frame 38, thereby achieving good printing effect and ensuring the qualified rate of the product.

[0041] The circulation structure comprises a first water pump 43 fixed to the water tank 42, the water inlet end of the first water pump 43 is in communication with the water tank 42, the water outlet end of the first water pump 43 is in communication with the first cavity 27 of the first water cavity 26, a second water pump 49 is fixed in the cavity 50, the water inlet end of the second water pump 49 is in communication with the cavity 50, the water outlet end of the second water pump 49 is in communication with the second cavity 28 of the second water cavity 53, a refrigerating fin 44 is fixed in the water tank 42, a plurality of heat dissipation fins 45 are fixed on the side of the water tank 42, and a plurality of fans 46 are arranged in the shell 1.

[0042] Specifically, during printing, the water in the water tank 42 is cooled by the refrigerating fin 44, the first water pump 43 and the second water pump 49 are started, the first water pump 43 sends the water in the water tank 42 into the first cavity 27 of the first water cavity 26, then flows into the second cavity 28 of the second water cavity 53, and finally flows into the cavity 50, and is heat-exchanged by the screw rod 51, so that the printing material can be cooled, thereby making the printing material quickly set, improving the printing efficiency, then the second water pump 49 is used to pump out the water in the cavity 50 and send it into the second cavity 28 of the second water cavity 53, then flow into the second cavity 28 of the first water cavity 26, and finally flow back to the water tank 42, so that the circulation cooling can be realized, the cooling effect is ensured, and the working efficiency is improved.

[0043] Work procedure: place the bottom plate 32 on the rotating plate 25, so that the first clamping block 33 enters the first clamping slot 35, the second clamping block 34 enters the second clamping slot 36, the first clamping block 33 and the first clamping slot 35 form a clamping relationship, the second clamping block 34 and the second clamping slot 36 form a clamping relationship, which can realize the installation of the bottom plate 32, so that the first support frame 37 and the second support frame 38 can be supported, then the screw rod 51 can be rotated, so that the screw rod 51 can be assisted to support, then the printing material is added to the first material box 2 and the second material box 3 through the feeding port 6, then the heating section is powered on, the first motor 4 is started, the first motor 4 drives the stirring rod 5 to rotate, so that the printing material is stirred, the melting speed of the printing material is improved, the first electric sliding rail 9, the second electric sliding rail 10 and the third electric sliding rail 11 are started, the first electric sliding rail 9 drives the first sliding frame 12 to slide, so that the second electric sliding rail 10 slides left and right, then the third electric sliding rail 11 is driven to slide up and down through the second electric sliding rail 10, so that the printing head 22 moves to print, the electric cylinder 16 is started, the electric cylinder 16 drives the sliding block 17 to move up and down, so that the first rotating frame 19 slides through the connecting rod 18, the first rotating frame 19 slides in the sliding groove 14 through the sliding rod 20, so that the printing head 22 slides, thereby adjusting the distance between the two printing heads 22, the printing head 22 is rotated through the second motor 21, so as to adjust the printing angle of the printing head 22, then the material pump 8 is started, the printing material is sent into the printing head 22 through the material pump 8 and then sprayed out, so as to carry out 3D printing, at the same time, the first water pump 43 and the second water pump 49 are started, the first water pump 43 sends the water in the water tank 42 into the first cavity 27 of the first water cavity 26, then flows into the second cavity 28 of the second water cavity 53, and finally flows into the cavity 50, which is heat exchanged through the screw rod 51, so as to cool the printing material, so as to make the printing material quickly shape, improve the printing efficiency, then the water in the cavity 50 is pumped out by the second water pump 49 and sent into the second cavity 28 of the second water cavity 53, then flows into the second cavity 28 of the first water cavity 26, and finally flows back to the water tank 42, so as to carry out circulating refrigeration, so as to carry out printing and improve work efficiency.

[0044] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A 3D printing preparation device for trauma orthopedic external fixation brace, comprising a shell (1), characterized in that, The shell (1) is provided with a storage structure, the storage structure is provided with a stirring structure, the shell (1) is provided with a feeding structure, the feeding structure corresponds to the storage structure, the shell (1) is provided with a moving structure, the moving structure is provided with a 3D printing structure, the 3D printing structure comprises two printing heads (22), the printing head (22) corresponds to the feeding structure, the moving structure is provided with a distance adjusting structure, the distance adjusting structure corresponds to the printing head (22), the bottom of the shell (1) is provided with a rotating structure, the rotating structure is provided with a supporting structure, the bottom of the shell (1) is provided with a cooling structure, the cooling structure corresponds to the supporting structure and the rotating structure, the moving structure comprises a first electric sliding rail (9), the output end of the first electric sliding rail (9) is fixedly provided with a first sliding frame (12), the first sliding frame (12) is fixedly provided with a second electric sliding rail (10), the output end of the second electric sliding rail (10) is fixedly provided with a second sliding frame (13), the second sliding frame (13) is fixedly provided with a third electric sliding rail (11), the output end of the third electric sliding rail (11) is fixedly provided with a third sliding frame (15), the third sliding frame (15) and the second sliding frame (13) correspond to the printing head (22), the distance adjusting structure corresponds to the third sliding frame (15), the distance adjusting structure comprises an electric cylinder (16) fixedly arranged on the third sliding frame (15), the output end of the electric cylinder (16) is fixedly provided with a sliding block (17), one side of the second sliding frame (13) is provided with a sliding groove (14), one side of the second sliding frame (13) is provided with a first rotating frame (19), the first rotating frame (19) is fixedly provided with a sliding rod (20), the sliding rod (20) corresponds to the sliding groove (14), the first rotating frame (19) is rotationally connected with the printing head (22), the first rotating frame (19) and the sliding block (17) are provided with a connecting rod (18), the two ends of the connecting rod (18) are rotationally connected with the first rotating frame (19) and the sliding block (17) respectively, one side of the first rotating frame (19) is fixedly provided with a second motor (21), the output end of the second motor (21) is fixedly connected with the printing head (22).

2. A 3D printing preparation device of a trauma orthopedic external fixation brace according to claim 1, characterized in that: The storage structure comprises a first material box (2) and a second material box (3) fixedly arranged on the shell (1), the first material box (2) and the second material box (3) are the same in structure, the top of the first material box (2) and the second material box (3) is provided with an inlet (6), the bottom of the first material box (2) and the second material box (3) is provided with an outlet (7), the first material box (2) and the second material box (3) are fixedly provided with a first motor (4), the stirring structure comprises a stirring rod (5) rotationally arranged in the first material box (2) and the second material box (3), the stirring rod (5) is fixedly connected with the output end of the first motor (4).

3. The 3D printing preparation device of a trauma orthopedic external fixation brace according to claim 2, characterized in that: The feeding structure comprises two material pumps (8), the inlet of the material pump (8) is communicated with the outlet (7), the outlet of the material pump (8) is fixedly provided with a feeding pipe (23), the feeding pipe (23) is communicated with the printing head (22).

4. The 3D printing preparation device of the trauma orthopedic external fixation brace according to claim 1, characterized in that: The rotating structure comprises a rotating plate (25) rotatably fitted in the shell (1), a third motor (24) fixed at the bottom of the shell (1), and the output end of the third motor (24) is fixedly connected with the rotating plate (25); and the cooling structure comprises a water tank (42) fixed at the bottom of the shell (1), and a circulating structure is arranged on the water tank (42) and corresponds to the rotating plate (25) and the supporting structure.

5. The 3D printing preparation device of a trauma orthopedic external fixator according to claim 4, characterized in that: A first water cavity (26) is formed in the shell (1), a baffle (29) is fixed in the rotating plate (25), a rubber sealing ring is fixed on the side of the baffle (29), a second water cavity (53) is formed in the rotating plate (25), a communication port (30) is formed on the side of the second water cavity (53), the communication port (30) is communicated with the first water cavity (26), the first water cavity (26) and the second water cavity (53) each comprise a first cavity (27) and a second cavity (28), the baffle (29) is located between the first cavity (27) and the second cavity (28), a bottom plate (32) is arranged on the rotating plate (25), and a clamping fixing structure is arranged between the rotating plate (25) and the bottom plate (32).

6. The 3D printing preparation device of a trauma orthopedic external fixator according to claim 5, characterized in that: The clamping fixing structure comprises a first clamping groove (35) and a plurality of second clamping grooves (36) formed on the rotating plate (25), a first clamping block (33) and a plurality of second clamping blocks (34) are fixed on the bottom plate (32), the first clamping block (33) corresponds to the first clamping groove (35), the second clamping block (34) corresponds to the second clamping groove (36), the supporting structure comprises a first supporting frame (37) fixed on the bottom plate (32), a second rotating frame (39) is fixed on the first supporting frame (37), and a second supporting frame (38) is arranged in the second rotating frame (39).

7. The 3D printing preparation device of a trauma orthopedic external fixator according to claim 6, characterized in that: A rotating shaft (40) is rotatably fitted in the second rotating frame (39), nuts (41) are threadedly fitted on both ends of the rotating shaft (40), the rotating shaft (40) is fixedly connected with the second supporting frame (38), a cavity (50) is formed in the first supporting frame (37), a sealing gasket is fixed on the opposite inner side of the first supporting frame (37), a plurality of screw rods (51) are threadedly fitted on the side of the first supporting frame (37), one end of the screw rod (51) is located in the cavity (50), and the sealing gasket corresponds to the screw rod (51).

8. The 3D printing preparation device of a trauma orthopedic external fixator according to claim 7, characterized in that: The circulating structure comprises a first water pump (43) fixed on the water tank (42), the water inlet end of the first water pump (43) is communicated with the water tank (42), the water outlet end of the first water pump (43) is communicated with the first cavity (27) of the first water cavity (26), a second water pump (49) is fixed in the cavity (50), the water inlet end of the second water pump (49) is communicated with the cavity (50), the water outlet end of the second water pump (49) is communicated with the second cavity (28) of the second water cavity (53), a refrigeration fin (44) is fixed in the water tank (42), a plurality of heat dissipation fins (45) are fixed on the side of the water tank (42), and a plurality of fans (46) are arranged in the shell (1).

Images