3D printing device for plastic forming

Abstract

The invention relates to the technical field of 3D printing, in particular to a 3D printing device for plastic molding. A 3D model continuous printing structure which continuously works for 3D printing is assembled on the 3D printing platform; the 3D model continuous printing structure comprises a bearing frame fixedly arranged on the side wall of the 3D model printing machine table. The continuous printing device has the continuous printing function, at most four models can be continuously printed, the printing device can process at most four models at the same time, continuous printing operation is conducted through the continuous printing structure, and the production efficiency is improved. The servo motors drive adjustment, the first servo motor and the second servo motor are started to drive the screw rod and the first worm correspondingly, adjustment of the vertical frame plate and the transmission rod is achieved, and it is guaranteed that the model can enter and exit from the printing machine smoothly. And horizontal adjustment and protection and horizontal sensor monitoring are conducted, the horizontal state of the horizontal platen is monitored through the horizontal sensor, and the horizontal stability in the printing process is ensured by adjusting the heights of the four electric telescopic rods.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printing, and in particular to a 3D printing device for plastic molding. Background Art

[0002] Generally speaking, the application of 3D printing technology to complete the molding of sand molds (cores) for casting is of great significance to the foundry industry. With the development of science and technology, the application of 3D printing in the foundry industry has become increasingly mature, and 3D printing equipment is widely used in the casting and molding of plastic parts. A Chinese patent discloses a 3D printing device for plastic molding (authorization announcement number CN115972574B). The patent technology discloses a 3D printing device for plastic molding, which belongs to the field of 3D printing technology. The 3D printing device for plastic molding includes a base, a switching mechanism and a second rotating member. A support body is provided on the upper end surface of the base, and a rectangular coordinate robot is installed on the top of the support body, and the rectangular coordinate robot is connected to a 3D print head; the switching mechanism includes a first rotating member and a first driving member, and the first rotating member is rotatably connected to the support body. The application uses the cooperation of the first driving member and the first rotating member to adjust the position of the two printing plates, so that the two printing plates can be moved to the bottom of the 3D printing head in sequence for printing, which is conducive to the continuous printing operation of the 3D printing head, reduces downtime, and greatly improves efficiency. The cooperation of the second driving member and the second rotating member to adjust the angle of the printing platen is more conducive to the 3D printing head to print and cast on the upper end surface of the printing platen. This patented technology solves the problem that when a 3D printer using plastic as consumables prepares workpieces on a workbench, the molded plastic casting workpiece needs to be removed from the workbench before the next printing and casting can be performed. At this time, the 3D printer needs to stop working, which affects the continuity of 3D printing and casting and reduces the efficiency of the 3D printer.

[0003] However, in the prior art, 3D printing of models usually takes several to more than ten hours, and the model printing is usually completed in the middle of the night. Since the personnel cannot remove the model in time after printing, the 3D printed model cannot be continuously printed. It is necessary to solve the problem of continuous and uninterrupted printing of models during 3D printing in the prior art.

[0004] Therefore, those skilled in the art provide a 3D printing device for plastic molding to solve the problems raised in the above background technology. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides:

[0006] A 3D printing device for plastic molding, comprising:

[0007] A 3D model printing platform; the upper part is equipped with a 3D model continuous printing structure for continuous 3D printing;

[0008] The 3D model continuous printing structure includes a load-bearing frame fixedly arranged on the side wall of the 3D model printer table, and a transmission rod is rotatably installed inside the load-bearing frame, the top of the transmission rod passes through the outside of the load-bearing frame, and a transmission disk is fixed on the whole, and load-bearing plates are fixedly arranged at the four points of the transmission disk;

[0009] The four load-bearing plates are each equipped with a continuous printer seat at one end away from the transmission disc;

[0010] A ventilation slot is provided inside the 3D model printer platform, and a circulating cold air structure fixed to the bottom of the 3D model printer platform is installed at the bottom of the ventilation slot;

[0011] A vertical plate is integrally fixed to the side of the 3D model printer platform, and a 3D printing device is detachably mounted on the vertical plate;

[0012] A movable frame structure is fixedly installed at the bottom of the 3D model printer table.

[0013] Preferably: the transmission rod is located on the outer wall of the load-bearing frame and is fixedly equipped with a worm wheel 1, the worm wheel 1 is meshed with a worm screw 1, and the worm screw 1 is connected to a servo motor 2 fixedly installed on the inner wall of the load-bearing frame.

[0014] Preferably: the continuous printer base includes a movable frame fixedly arranged on the end of the load-bearing plate away from the transmission disk, a mounting plate is fixedly installed on the inner side of the movable frame, and a breathable plate frame is fixed on the end of the mounting plate away from the movable frame, and a desiccant filter is provided on the inner side of the breathable plate frame for absorbing and dehumidifying moisture in the air.

[0015] Preferably: an adjustment frame is fixedly installed on the air-permeable plate frame, and adjustment rods are rotatably installed at both ends of the adjustment frame, and the adjustment rod is located at one end of the adjustment frame and is fixedly equipped with a worm gear 2 on the outer wall, the worm gear 2 is meshed with a worm gear 2, and one end of the worm gear 2 is connected to a servo motor 3 installed inside the adjustment frame.

[0016] Preferably: the adjusting rod is symmetrically equipped with a plurality of springs along the middle part, one end of the spring away from the adjusting rod is fixedly equipped with a positioning rod, a membrane cylinder is detachably sleeved on the outer side of the positioning rod, and a protective film is wound around the outer side of the membrane cylinder.

[0017] Preferably: the four corners of the surface of the air permeable plate frame are equipped with a universal ball seat 1, the top of the universal ball seat 1 is equipped with an electric telescopic rod, and the top of the electric telescopic rod is equipped with a universal ball seat 2, the top of the universal ball seat 2 is fixedly equipped with a horizontal platform plate, and the middle of the bottom end of the horizontal platform plate is equipped with a level sensor for monitoring the level of the horizontal platform plate;

[0018] A magnetic printing plate is detachably placed on the surface of the horizontal platform.

[0019] Preferably: the 3D printing device comprises an X-axis electric rail detachably mounted on a side of the vertical plate, and a Y-axis electric rail is mounted on the electric slider of the X-axis electric rail.

[0020] Preferably: a Z-axis electric rail is installed at the electric slide block of the Y-axis electric rail, and a 3D printing body for 3D printing is installed at the electric slide block of the Z-axis electric rail.

[0021] Preferably: the circulating cold air structure comprises a circulating pipe installed inside the ventilation slot, one end of the circulating pipe is connected to a circulating pump, and the pumping end of the circulating pump is connected to a coolant tank;

[0022] The other end of the circulation pipe is connected to the inside of the cooling liquid tank, and a semiconductor refrigerator is installed inside the cooling liquid tank. The cooling end of the semiconductor refrigerator is located inside the cooling liquid tank, and the heat dissipation end of the semiconductor refrigerator is located outside the cooling liquid tank.

[0023] Preferably: the circulating cold air structure also includes a wind scoop frame sealed and installed on the inner edge of the bottom of the ventilation slot, a fan body is installed inside the wind scoop frame, and a filter screen for filtering dust in the air is provided below the fan body.

[0024] Technical effects and advantages of the present invention:

[0025] The present invention has a continuous printing function, and can print up to four models continuously. The printing device can process up to four models at the same time, and can perform continuous printing operations through a continuous printing structure to improve production efficiency. Servo motor drive adjustment, by starting servo motor 1 and servo motor 2, respectively drive the screw and worm 1 to achieve the adjustment of the vertical frame plate and the transmission rod, ensuring that the model can smoothly enter and exit the printer table, horizontal adjustment and protection, horizontal sensor monitoring, using the horizontal sensor to monitor the horizontal state of the horizontal platform, by adjusting the height of the four electric telescopic rods to ensure the horizontal stability during the printing process.

[0026] The present invention has a protective film anti-sticking design, and the surface of the protective film has an anti-sticking coating to prevent 3D printed plastics from sticking. At the same time, servo motor three drives worm two and worm gear two to realize the winding and cleaning of the protective film, ensuring the cleanliness of each print, cooling and ventilation, and circulating cold air structure. By starting the fan body and semiconductor refrigerator, combined with a circulating pump and a filter screen, air cooling and ventilation treatment are provided for the interior of the closed frame to ensure that the printing equipment works in a constant temperature environment.

[0027] The present invention has coolant circulation refrigeration, a semiconductor refrigerator cools the coolant in the coolant tank, a circulation pump draws the coolant into the inside of the circulation pipe, and provides cold air for the inside of the closed frame through heat absorption refrigeration, thereby ensuring printing quality, reducing maintenance costs, and improving equipment stability and ease of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of a 3D printing device for plastic molding provided by the present application;

[0029] Figure 2 This is a schematic diagram of a top view of a 3D printing device for plastic molding provided by the present application;

[0030] Figure 3 It is a schematic diagram of the structure of a side surface of a 3D printing device for plastic molding provided by the present application;

[0031] Figure 4 It is a structural schematic diagram of the decomposition of the 3D model continuous printing structure in a 3D printing device for plastic molding provided by the present application;

[0032] Figure 5 It is a structural schematic diagram of the component separation in a 3D printing device for plastic molding provided by the present application;

[0033] Figure 6 It is a structural schematic diagram of a screw in a 3D printing device for plastic molding provided by the present application;

[0034] Figure 7 It is a structural schematic diagram of a 3D model continuous printing structure in a 3D printing device for plastic molding provided by the present application;

[0035] Figure 8 It is a structural schematic diagram of a load-bearing frame in a 3D printing device for plastic molding provided by the present application;

[0036] Fig. 9 It is a structural schematic diagram of a load-bearing plate in a 3D printing device for plastic molding provided by the present application;

[0037] Fig.10 It is a structural schematic diagram of a mobile frame in a 3D printing device for plastic molding provided by the present application;

[0038] Fig.11 It is a structural schematic diagram of a horizontal platform plate in a 3D printing device for plastic molding provided by the present application;

[0039] Fig.12 This application provides a 3D printing device for plastic molding Fig.10 The structural diagram at A in the middle;

[0040] Fig.13 This application provides a 3D printing device for plastic molding Fig.11 The structural diagram at B in the middle;

[0041] Fig.14 This application provides a 3D printing device for plastic molding Fig.11 The structural diagram at C in the middle;

[0042] Fig.15 It is a structural schematic diagram of a circulating cold air structure in a 3D printing device for plastic molding provided by the present application;

[0043] Fig.16 It is a structural schematic diagram of a movable frame structure in a 3D printing device for plastic molding provided in the present application.

[0044] In the figure:

[0045] 1. 3D model printer;

[0046] 2. 3D model continuous printing structure; 201. load-bearing frame; 202. transmission rod; 203. worm gear 1; 204. worm gear 1; 205. servo motor 2; 206. transmission plate; 207. load-bearing plate;

[0047] 21. Continuous printer seat; 2101. Moving frame; 2102. Desiccant filter; 2103. Mounting plate; 2104. Breathable plate frame; 2105. Adjustment frame; 2106. Adjustment rod; 2107. Worm gear 2; 2108. Worm gear 2; 2109. Servo motor 3; 2110. Spring; 2111. Positioning rod; 2112. Breathable net; 2113. Universal ball seat 1; 2114. Electric telescopic rod; 2115. Universal ball seat 2; 2116. Horizontal platform; 2117. Level sensor; 2118. Magnetic printing plate; 2119. Film cylinder; 2120. Protective film;

[0048] 3. 3D printing equipment; 31. X-axis electric rail; 32. Y-axis electric rail; 33. Z-axis electric rail; 34. 3D printing body;

[0049] 4. Circulating cold air structure; 401. Circulating pipe; 402. Circulating pump; 403. Cooling liquid tank; 404. Semiconductor refrigerator; 405. Cooling fan; 406. Wind scoop frame; 407. Fan body; 408. Filter;

[0050] 5. Closed frame;

[0051] 6. Mobile frame structure; 601. Support frame; 602. Mobile frame; 603. Universal wheel; 604. Adjusting screw rod; 605. Load plate; 606. Side machine base; 607. Drying table; 608. Resistance heater; 609. Dryer;

[0052] 7. Controller; 8. Transparent glass; 9. Vertical frame; 10. Screw; 11. Sliding rod; 12. Servo motor 1; 13. Ventilation slot. DETAILED DESCRIPTION

[0053] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The examples of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific uses.

[0054] For example, see Figure 1 to Figure 7 In this embodiment, a 3D printing device for plastic molding is provided, comprising: a 3D model printer table 1; a 3D model continuous printing structure 2 for continuous 3D printing is mounted on the table; the 3D model continuous printing structure 2 can complete the placement of multiple models during 3D printing, and automatically adjust the horizontal placement of the printed models;

[0055] The 3D model printer platform 1 has a ventilation slot 13 inside, and the bottom of the ventilation slot 13 is equipped with a circulating cold air structure 4 fixed to the bottom of the 3D model printer platform 1;

[0056] A vertical plate is integrally fixed to the side of the 3D model printer platform 1, and a 3D printing device 3 is detachably mounted on the vertical plate;

[0057] A closed frame 5 located above the 3D model printer table 1 is movably provided on one side of the vertical plate, and a vertical frame plate 9 fixed integrally with the closed frame 5 is movably provided on the other side of the vertical plate, and a screw hole is opened on the inner wall of the middle part of the vertical frame plate 9, and a screw rod 10 is spirally driven in the screw hole, and a servo motor 12 fixedly installed on the inner wall of the 3D model printer table 1 is connected to the bottom end of the screw rod 10;

[0058] The inner walls of both sides of the vertical frame plate 9 are provided with square holes, and a slide bar 11 is movably arranged in the square hole, and the bottom end of the slide bar 11 is fixedly mounted on the surface of the 3D model printer table 1;

[0059] A controller 7 is installed on a side of the 3D model printing platform 1 away from the 3D model continuous printing structure 2 .

[0060] A movable frame structure 6 is fixedly installed at the bottom of the 3D model printer platform 1 .

[0061] The 3D printing device 3 includes an X-axis electric rail 31 detachably mounted on the side of a vertical plate, and a Y-axis electric rail 32 is mounted on the electric slider of the X-axis electric rail 31, and a Z-axis electric rail 33 is mounted on the electric slider of the Y-axis electric rail 32, and a 3D printing body 34 for 3D printing is mounted on the electric slider of the Z-axis electric rail 33.

[0062] Transparent glass 8 is installed on the inner sides of three sides of the closed frame 5 .

[0063] Personnel can observe the details of the 3D printing inside the closed frame 5 through the transparent glass 8.

[0064] For example 2, please refer to Figure 8 to Figure 14 In this embodiment, a 3D model continuous printing structure 2 in a 3D printing device for plastic molding is provided;

[0065] The 3D model continuous printing structure 2 includes a load-bearing frame 201 fixedly arranged on the side wall of the 3D model printer table 1, and a transmission rod 202 is rotatably installed inside the load-bearing frame 201, the top of the transmission rod 202 passes through the outside of the load-bearing frame 201, and a transmission disk 206 is fixed on the whole, and the four points of the transmission disk 206 are respectively fixedly arranged with load-bearing plates 207; four load-bearing plates 207 are fixedly installed on the outer wall of the transmission disk 206 in a ring shape with equal distances;

[0066] The four bearing plates 207 are each equipped with a continuous printer seat 21 at one end away from the transmission plate 206;

[0067] The four continuous printer seats 21 can move along the 3D model printer table 1 to continuously print different models during 3D printing;

[0068] The transmission rod 202 is located on the outer wall of the load-bearing frame 201 and is fixedly equipped with a worm wheel 203 , the worm wheel 203 is meshed with a worm 204 , and the worm 204 is connected to a servo motor 205 fixedly installed on the inner wall of the load-bearing frame 201 .

[0069] The servo motor 205 is sealed and disposed inside the load-bearing frame 201 and is used to actively drive the worm 1 204 to rotate.

[0070] The continuous printer base 21 includes a movable frame 2101 fixedly arranged on the end of the load-bearing plate 207 away from the transmission disk 206, a mounting plate 2103 is fixedly installed on the inner side of the movable frame 2101, and a breathable plate frame 2104 is fixed on the end of the mounting plate 2103 away from the movable frame 2101, and a desiccant filter 2102 for absorbing and dehumidifying moisture in the air is arranged on the inner side of the breathable plate frame 2104.

[0071] The desiccant filter 2102 is detachably mounted inside the mobile frame 2101;

[0072] The air permeable plate frame 2104 has a slot body inside for wind to pass through, and an air permeable net 2112 is installed on the inner edge of the slot body.

[0073] An adjusting frame 2105 is fixedly installed on the breathable plate frame 2104, and adjusting rods 2106 are rotatably installed at both ends of the adjusting frame 2105. The adjusting rod 2106 is located on the outer wall of one end of the adjusting frame 2105 and is fixedly equipped with a worm gear 2107. The worm gear 2107 is meshed with a worm screw 2108, and one end of the worm screw 2108 is connected to a servo motor 3 2109 installed inside the adjusting frame 2105.

[0074] The servo motor three 2109 is sealed and assembled inside the adjustment frame 2105, and is used to actively drive the worm gear two 2108 to rotate.

[0075] The adjusting rod 2106 is symmetrically equipped with a plurality of springs 2110 along the middle part, and a positioning rod 2111 is fixedly equipped at one end of the spring 2110 away from the adjusting rod 2106 . A film cylinder 2119 is detachably sleeved on the outer side of the positioning rod 2111 , and a protective film 2120 is wrapped around the outer side of the film cylinder 2119 .

[0076] There are two film cylinders 2119 in total, and one of the film cylinders 2119 is used to extend and place the protective film 2120 , and the other film cylinder 2119 is used to roll up and store the protective film 2120 .

[0077] The four corners of the surface of the air permeable plate frame 2104 are all equipped with a universal ball seat 1 2113, the top of the universal ball seat 1 2113 is equipped with an electric telescopic rod 2114, and the top of the electric telescopic rod 2114 is equipped with a universal ball seat 2115, and the top of the universal ball seat 2115 is fixedly equipped with a horizontal platform 2116, and the middle of the bottom end of the horizontal platform 2116 is equipped with a level sensor 2117 for monitoring the level of the horizontal platform 2116;

[0078] A magnetic printing plate 2118 is detachably placed on the surface of the horizontal platform 2116 .

[0079] The surface of the horizontal platform plate 2116 is made of magnetic material, and the magnetic printing plate 2118 is magnetically positioned on the surface of the horizontal platform plate 2116 .

[0080] For example 3, please refer to Fig.15 In this embodiment, a circulating cold air structure 4 in a 3D printing device for plastic molding is provided;

[0081] The circulating cold air structure 4 includes a circulating pipe 401 installed inside the ventilation slot 13, and one end of the circulating pipe 401 is connected to a circulating pump 402, and the pumping end of the circulating pump 402 is connected to a coolant tank 403;

[0082] The other end of the circulation pipe 401 is connected to the inside of the coolant tank 403, and a semiconductor refrigerator 404 is installed inside the coolant tank 403. The cooling end of the semiconductor refrigerator 404 is located inside the coolant tank 403, and the heat dissipation end of the semiconductor refrigerator 404 is located outside the coolant tank 403.

[0083] A cooling fan 405 is installed on the outer side of the heat dissipation end of the semiconductor cooler 404 .

[0084] The circulating cold air structure 4 also includes a wind scoop frame 406 sealed and installed on the inner edge of the bottom of the ventilation slot 13, a fan body 407 is installed on the inner side of the wind scoop frame 406, and a filter screen 408 for filtering dust in the air is provided below the fan body 407, and the filter screen 408 is detachably installed on the outer side of the exhaust end of the fan body 407.

[0085] Example 4, please refer to Fig.16 In this embodiment, a mobile frame structure 6 in a 3D printing device for plastic molding is provided;

[0086] The mobile frame structure 6 includes a support frame 601 fixedly arranged at the bottom of the 3D model printer table 1, a mobile frame 602 is integrally fixed to the bottom end of the support frame 601, and universal wheels 603 are installed at both ends of the bottom of the mobile frame 602;

[0087] The inner walls of both ends of the mobile frame 602 are spirally driven with adjusting screw rods 604, the bottom end of the adjusting screw rod 604 spirally rotates and penetrates the bottom of the mobile frame 602, and is rotatably equipped with a bearing plate 605, the top end of the adjusting screw rod 604 rotates and penetrates the outside of the mobile frame 602, and a hand lever is fixedly arranged on the outer wall;

[0088] A side machine base 606 is integrally fixed to the outer wall of the support frame 601, and a drying table 607 is integrally fixed to one end of the side machine base 606 away from the support frame 601, and the drying table 607 is located at the bottom of the mobile frame 2101;

[0089] The drying table 607 is internally provided with an active heating resistance heater 608;

[0090] A dryer 609 is provided below the resistance heater 608 and is sealed and assembled at the bottom of the drying table 607 .

[0091] According to the above embodiments, the working principle of the present invention is:

[0092] The 3D printing device 3 can perform printing and processing operations on up to four 3D model continuous printing structures 2 according to the number of models when printing and processing the model;

[0093] Before adjusting the 3D model continuous printing structure 2, the servo motor 12 needs to be started, and the servo motor 12 drives the screw 10 to rotate, and the screw 10 performs a spiral transmission on the vertical frame 9, so that the vertical frame 9 drives the closed frame 5 to continuously rise along the screw 10 and the slide bar 11, and the model printed on a continuous printer seat 21 can be moved out of the 3D model printer table 1;

[0094] When the continuous printer seat 21 is moved and adjusted, the servo motor 205 is started, and the servo motor 205 drives the worm 1 204 to rotate, so that the worm 1 204 engages with the worm wheel 1 203 to rotate, and the worm wheel 1 203 drives the transmission plate 206 on the transmission rod 202 to rotate to 90 degrees, so that the model after printing can be moved out of the range of the 3D model printer table 1, and the model waiting to be printed can be 3D printed on another continuous printer seat 21;

[0095] During the 3D printing of the model by the 3D printing device 3, the horizontal state of the horizontal platform 2116 is monitored by the horizontal sensor 2117, and the height of the four electric telescopic rods 2114 is adjusted according to the horizontal data. The horizontal platform 2116 can be adjusted horizontally through the universal ball seat 1 2113 and the universal ball seat 2 2115;

[0096] The surface of the protective film 2120 has an anti-stick coating to prevent the 3D printed plastic from sticking;

[0097] After the protective film 2120 is printed and removed once, the servo motor 3 2109 is started to rotate, and the servo motor 3 2109 drives the worm 2108 to rotate, so that the worm 2108 meshes with the worm gear 2107, and the worm gear 2107 drives the adjusting rod 2106 to rotate, so that the two film cylinders 2119 can be rotated at the same time and in the same direction, and the protective film 2120 can be rolled up, so that the sticky model plastic remaining on the protective film 2120 can be rolled up and cleaned, which is conducive to each model printing without being affected by the residual plastic of the last printed model;

[0098] The circulating cold air structure 4 can ventilate and cool the interior of the closed frame 5;

[0099] The fan body 407 is started, and the fan body 407 extracts air from the outside of the filter 408, and the air passes through the filter 408 to filter dust, and then is discharged into the inside of the air scoop frame 406, and blows into the inside of the closed frame 5 through the ventilation slots 13, so that the inside of the closed frame 5 can be cooled by air, which is beneficial for the 3D printing device 3 to work in a constant temperature space;

[0100] After the semiconductor refrigerator 404 is started, the coolant in the coolant tank 403 is cooled. The cooled coolant is pumped into the circulation pipe 401 by the circulation pump 402. The circulation pipe 401 located in the ventilation slot 13 absorbs heat and cools the internal space. The circulating air is the cold air that blows toward the desiccant filter 2102 and then flows into the closed frame 5 to cool the environment.

[0101] The mobile frame structure 6 can be moved and adjusted on the ground through the universal wheel 603 at the bottom of the mobile frame 602, and after the position is determined, the hand lever on the adjusting screw rod 604 is rotated to make the adjusting screw rod 604 spirally drive inside the mobile frame 602, so that the bearing plate 605 is lowered to close to the ground, so that the support frame 601 on the mobile frame 602 is fixed on the ground;

[0102] There is circulating desiccant inside the desiccant filter 2102. After starting the resistance heater 608 and the dryer 609 below it, hot air is blown toward the desiccant filter 2102 along the drying table 607 to evaporate the moisture in the circulating desiccant inside the desiccant filter 2102, thereby completing the recycling of the desiccant filter 2102.

[0103] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A 3D printing device for plastic molding, characterized in that: include: A 3D model printing platform (1) is provided with a 3D model continuous printing structure (2) for continuous 3D printing; The 3D model continuous printing structure (2) comprises a load-bearing frame (201) fixedly arranged on the side wall of the 3D model printer table (1), and a transmission rod (202) is rotatably mounted inside the load-bearing frame (201), the top of the transmission rod (202) passes through the outside of the load-bearing frame (201), and a transmission disk (206) is fixed on the whole, and load-bearing plates (207) are respectively fixedly arranged at the four points of the transmission disk (206); One end of each of the four load-bearing plates (207) away from the transmission plate (206) is equipped with a continuous printer seat (21); The 3D model printer platform (1) is provided with a ventilation slot (13) inside, and the bottom of the ventilation slot (13) is equipped with a circulating cold air structure (4) fixed to the bottom of the 3D model printer platform (1); A vertical plate is integrally fixed to the side of the 3D model printing platform (1), and a 3D printing device (3) is detachably mounted on the vertical plate; A movable frame structure (6) is fixedly mounted on the bottom of the 3D model printing platform (1).

2. A 3D printing device for plastic molding according to claim 1, characterized in that: The transmission rod (202) is located on the outer wall of the load-bearing frame (201) and is fixedly equipped with a worm wheel (203), the worm wheel (203) is meshed with a worm screw (204), and the worm screw (204) is connected to a servo motor (205) fixedly installed on the inner wall of the load-bearing frame (201).

3. A 3D printing device for plastic molding according to claim 1, characterized in that: The continuous printer seat (21) includes a movable frame (2101) fixedly arranged on the end of the load-bearing plate (207) away from the transmission plate (206), a mounting plate (2103) is fixedly installed on the inner side of the movable frame (2101), and a breathable plate frame (2104) is fixed on the end of the mounting plate (2103) away from the movable frame (2101), and a desiccant filter (2102) for absorbing and dehumidifying moisture in the air is arranged on the inner side of the breathable plate frame (2104).

4. A 3D printing device for plastic molding according to claim 3, characterized in that: An adjusting frame 2 (105) is fixedly installed on the air-permeable plate frame (2104), and adjusting rods (2106) are rotatably installed at both ends of the adjusting frame (2105), and the adjusting rod (2106) is located on the outer wall of one end of the adjusting frame (2105) and is fixedly equipped with a worm gear 2 (2107), the worm gear 2 (2107) is meshed with a worm gear 2 (2108), and one end of the worm gear 2 (2108) is connected to a servo motor 3 (2109) installed inside the adjusting frame (2105).

5. A 3D printing device for plastic molding according to claim 4, characterized in that: The adjusting rod (2106) is symmetrically equipped with a plurality of springs (2110) along the middle part, and a positioning rod (2111) is fixedly equipped at one end of the spring (2110) away from the adjusting rod (2106). A membrane cylinder (2119) is detachably sleeved on the outer side of the positioning rod (2111), and a protective film (2120) is wrapped around the outer side of the membrane cylinder (2119).

6. A 3D printing device for plastic molding according to claim 4, characterized in that: The four corners of the surface of the air permeable plate frame (2104) are all equipped with a universal ball seat (2113), the top of the universal ball seat (2113) is equipped with an electric telescopic rod (2114), and the top of the electric telescopic rod (2114) is equipped with a universal ball seat (2115), the top of the universal ball seat (2115) is fixedly equipped with a horizontal platform (2116), and the middle of the bottom end of the horizontal platform (2116) is equipped with a level sensor (2117) for monitoring the level of the horizontal platform (2116); A magnetic printing plate (2118) is detachably placed on the surface of the horizontal platform (2116).

7. A 3D printing device for plastic molding according to claim 1, characterized in that: The 3D printing device (3) comprises an X-axis electric rail (31) detachably mounted on the side of a vertical plate, and a Y-axis electric rail (32) is mounted on the electric slider of the X-axis electric rail (31).

8. A 3D printing device for plastic molding according to claim 7, characterized in that: A Z-axis electric rail (33) is installed at the electric slide block of the Y-axis electric rail (32), and a 3D printing body (34) for 3D printing is installed at the electric slide block of the Z-axis electric rail (33).

9. A 3D printing device for plastic molding according to claim 1, characterized in that: The circulating cold air structure (4) comprises a circulating pipe (401) installed inside the ventilation slot (13), one end of the circulating pipe (401) is connected to a circulating pump (402), and a water pumping end of the circulating pump (402) is connected to a cooling liquid tank (403); The other end of the circulation pipe (401) is connected to the inside of the cooling liquid tank (403), and a semiconductor refrigerator (404) is installed inside the cooling liquid tank (403). The cooling end of the semiconductor refrigerator (404) is located inside the cooling liquid tank (403), and the heat dissipation end of the semiconductor refrigerator (404) is located outside the cooling liquid tank (403).

10. A 3D printing device for plastic molding according to claim 9, characterized in that: The circulating cold air structure (4) also includes a wind scoop frame (406) sealed and installed on the inner edge of the bottom of the ventilation slot (13), a fan body (407) is installed on the inner side of the wind scoop frame (406), and a filter screen (408) for filtering dust in the air is provided below the fan body (407).

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