A resin model 3D printing device

Abstract

The application discloses a resin model 3D printing device, and relates to the technical field of additive manufacturing. The workbench structure comprises a mounting plate, a first telescopic rod is fixedly connected to the inner wall of the mounting plate, a first return spring is arranged outside the first telescopic rod, a reinforcing rod is fixedly connected to one side of the inner wall of the mounting plate and located on the first telescopic rod, a first movable plate is fixedly connected to the top of the first telescopic rod, an outer wall below the mounting plate is fixedly connected with a workbench, an outer wall above the first movable plate is attached with a cleaning structure, the cleaning structure comprises a cleaning plate, and a second telescopic rod is fixedly connected to the inside of the cleaning plate. By applying force to the first movable plate, the first movable plate is moved by the telescopic rod and the return spring, the model is separated from the contact surface of the workbench, the model is conveniently and easily taken, the model is prevented from being damaged due to forcible taking, and the model yield is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of additive manufacturing, in particular to a resin model 3D printing device. BACKGROUND

[0002] At present, with the rapid development of 3D printing technology, resin model 3D printing is widely used in industrial manufacturing, artistic creation, medical treatment and other fields due to its high precision and high detail restoration capability. However, the traditional resin 3D printing device has the problems that the waste gas and waste material generated in the printing process not only pollute the working environment and harm the health of the operators, but also may be attached to the key components of the equipment, affecting the printing quality and the service life of the equipment; the residual waste material on the printing workbench is easy to cause model forming deviation. SUMMARY

[0003] (I) Technical problems solved

[0004] In view of the defects of the prior art, the present application provides a resin model 3D printing device, which solves the problems of waste gas and waste material generated in the printing process.

[0005] (II) Technical solutions

[0006] To achieve the above object, the present application is implemented by the following technical scheme: A resin model D printing device, comprising a protective cover, the inside of the protective cover is fixedly connected with a printing device, the inside of the printing device is provided with a base assembly, the base assembly is fixedly connected with the inner wall below the protective cover, the outer wall above the base assembly is fixedly connected with a gantry, the outer wall above the gantry is fixedly connected with a take-up reel, the outer wall of the gantry is fixedly connected with a discharging assembly, further comprising: a workbench structure; the workbench structure comprises a mounting plate, the inner wall of the mounting plate is fixedly connected with a first telescopic rod, the outside of the first telescopic rod is provided with a first return spring, the inner wall of the mounting plate is fixedly connected with a reinforcing rod on one side of the first telescopic rod, the top of the first telescopic rod is fixedly connected with a first movable plate, the outer wall below the mounting plate is fixedly connected with a workbench, the outer wall above the first movable plate is attached with a cleaning structure; the cleaning structure comprises a cleaning plate, the inside of the cleaning plate is fixedly connected with a second telescopic rod, the outside of the second telescopic rod is sleeved with a second return spring, the inner wall of the second telescopic rod away from the cleaning plate is fixedly connected with a second movable plate, the second movable plate is below the cleaning plate and is tightly attached to the surface of the first movable plate by adopting a silica gel scraper + fiber brush composite structure, the protective cover is used as an external protective barrier to construct a relatively closed and stable printing environment to reduce the interference of external dust, airflow and the like, and the printing device inside the protective cover is a function execution main body, the base assembly inside the printing device is like a foundation and is fixedly connected with the inner wall below the protective cover to provide stable support for the whole printing device, the gantry above the base assembly is a bearing frame for printing work and bears key components such as the take-up reel and the discharging assembly, the take-up reel is used for neatly storing the reel of printing consumables to ensure the orderly supply of consumables, and the discharging assembly is responsible for the accurate output of printing materials to provide raw materials for model forming, in addition, the unique workbench structure of the device is a bearing table for model printing and creates an operation space for printing work; the mounting plate in the workbench structure is a bearing substrate of internal components, and the reinforcing rod on one side of the inner wall of the mounting plate is like a reinforcing rib to enhance the structural rigidity of the mounting plate and make the movement of the first movable plate on the top of the first telescopic rod more stable.

[0007] Preferably, the outer wall below the two sides of the first movable plate is attached to the outer wall above the mounting plate, the outer wall below the first telescopic rod is fixedly connected to the outer wall above the workbench, the outer wall above the first movable plate is attached to the outer wall below the second movable plate, and the outer wall below the workbench is fixedly connected with the collecting assembly. The inside of the base assembly is provided with a mounting bracket, the outer wall of the mounting bracket is provided with a shaft rod, the outer wall of the shaft rod is drivingly connected with a belt pulley set, the inner wall of the end of the belt pulley set away from the mounting bracket is drivingly connected with a one-way threaded rod, the outer wall of the one-way threaded rod is slidingly connected with a movable block, the outer wall of the movable block is fixedly connected with the outer wall of the cleaning structure, and the outer wall of the mounting bracket is slidingly connected with the outer wall of the workbench. In the workbench structure, the outer wall below the two sides of the first movable plate is attached to the outer wall above the mounting plate, and the outer wall below the first telescopic rod is fixedly connected to the outer wall above the workbench, thereby constructing a stable motion transmission path. This connection mode makes the vertical movement of the first movable plate more stable, ensures the stability of the model bearing surface during printing, and at the same time, the attachment of the outer wall above the first movable plate to the outer wall below the second movable plate enables the cleaning structure and the workbench structure to be linked, so that the cleaning action can act on the surface of the workbench. The outer wall of the mounting bracket is slidingly connected with a stepping motor, and the stepping motor is fixedly connected with the outer wall of the gantry.

[0008] Preferably, the collecting assembly comprises a guide plate, the inner wall below the guide plate is fixedly connected with a collecting box, and the outer wall of the collecting box is slidingly connected with the inner wall of the guide plate. The waste material can be guided by the inclination angle of the guide plate surface and the guide groove and falls into the collecting box. The collecting box can be designed as a drawer type with a sealing rubber strip to prevent waste leakage.

[0009] Preferably, the discharging assembly comprises a print head, the outer wall above the print head is fixedly connected with a pre-cleaning structure, the outer wall of the print head is fixedly connected with an air suction structure, the end of the air suction structure away from the print head is clamped with a filter structure, and the filter structure is fixed to the outer wall above the electrical equipment. The print head of the discharging assembly is the key outlet of the resin material extrusion molding. The pre-cleaning structure fixed to the outer wall above the print head prevents impurities carried by the resin from blocking the print head nozzle, ensuring the smoothness of the print material output and the quality of the model forming. The air suction structure fixed to the outer wall of the print head cooperates with the filter structure clamped at the end away from the print head to form a set of print environment purification system. The air suction structure can suck pollutants such as waste gas and small resin particles generated during printing into the filter structure for purification treatment. The filter structure is fixed to the outer wall above the electrical equipment, which provides a mounting position for the purification system by utilizing the space around the electrical equipment, and also can utilize the environment such as heat dissipation of the electrical equipment to assist the purification process.

[0010] Preferably, the filtering structure includes a filter box, the inner wall of the filter box is fixedly connected with a first filter plate and a second filter plate, the first filter plate is located above the second filter plate, the outer wall of the filter box on both sides is clamped with a locking structure, the locking structure further includes a sixth telescopic rod, one end of the sixth telescopic rod away from the filter box is fixedly connected with a moving block, the outer part of the sixth telescopic rod is sleeved with a third return spring, the inner wall of the moving block is fixedly connected with a seventh telescopic rod, the outer part of the seventh telescopic rod is sleeved with a tension spring, one end of the seventh telescopic rod away from the inner wall of the moving block is fixedly connected with a clamping plate, the inner wall of the clamping plate is clamped with the protrusion of the outer wall of the filter box, the fixedly connected first filter plate and second filter plate form a two-stage filtering barrier, the first filter plate is located above, the inhaled pollutants can be preliminarily filtered, and the larger particles of impurities are intercepted; the second filter plate is below, the exhaust gas filtered by the preliminary filtering is further purified, and the adsorption and filtering effect of the filtering material on the small particles and harmful gas components are removed. The locking structure clamped with the outer wall of the filter box on both sides is convenient to disassemble and assemble the filter box, the sixth telescopic rod in the locking structure can be telescoped, the moving block fixedly connected with one end of the sixth telescopic rod away from the filter box moves with the sixth telescopic rod, the third return spring sleeved with the outer part of the sixth telescopic rod stores elastic potential energy when the sixth telescopic rod is contracted, and assists in resetting when the sixth telescopic rod is stretched, the seventh telescopic rod fixedly connected with the inner wall of the moving block cooperates with the tension spring sleeved with the outer part, so that the clamping plate fixedly connected with one end of the seventh telescopic rod away from the inner wall of the moving block can be flexibly clamped with the protrusion of the outer wall of the filter box, the filter box and the equipment are quickly connected and separated, regular cleaning and replacement of the filter plate are facilitated, and the purification effect is guaranteed.

[0011] Preferably, the air suction structure includes an air suction pipe, the outer wall of the air suction pipe is clamped with an arc-shaped locking plate, the outer wall of the arc-shaped locking plate is fixedly connected with a fifth telescopic rod, the outer part of the fifth telescopic rod is sleeved with a third thrust spring, the outer wall of one end of the fifth telescopic rod away from the arc-shaped locking plate is fixedly connected with a mounting ring, the mounting ring is fixed to the inner wall of the filter box, the air suction pipe of the air suction structure serves as a channel for conveying exhaust gas, the arc-shaped locking plate clamped with the outer wall of the air suction pipe can be adapted to the arc-shaped outer wall of the air suction pipe, stable clamping is realized, the fifth telescopic rod fixed to the outer wall of the arc-shaped locking plate can adjust the position of the arc-shaped locking plate to adapt to different installation requirements, the third thrust spring sleeved with the outer part of the fifth telescopic rod provides elastic support and resetting assistance during the telescoping process of the fifth telescopic rod, and the mounting ring fixed to the outer wall of one end of the fifth telescopic rod away from the arc-shaped locking plate fixedly connects the air suction structure with the inner wall of the filter box, guarantees the sealing performance and stability of the air suction passage, and enables the exhaust gas to be smoothly sucked from the periphery of the print head and conveyed to the filter box for purification.

[0012] Preferably, the pre-cleaning structure comprises a protective box, the inside of the protective box is fixed with a collection tank structure, the inside of the collection tank structure is slidingly connected with a clamping block, the inner wall of the clamping block is pasted with a sponge, the inner wall below the collection tank structure is fixedly connected with a pipeline extending out of the protective box, and the end of the pipeline away from the collection tank structure is penetratingly connected with a storage box, the inner wall of the storage box is slidingly connected with a drawer, if the sponge adsorption capacity decreases, the protective box can be opened, the third telescopic rod and the first push spring are adjusted, the clamping block is removed, the sponge is replaced, the pre-cleaning effect is ensured, and after cleaning, all the devices are reset, the tension spring loses tension, and through the elasticity of the tension spring, the seventh telescopic rod is reset, and the clamping plate is reset.

[0013] Preferably, the collection tank structure comprises a collection cover, the inner wall of the collection cover is fixedly connected with an annular rack, the third telescopic rod is fixedly connected to the opposite surface of the annular rack, the outer surface of the third telescopic rod is sleeved with a first push spring, the end of the third telescopic rod away from the inner wall of the collection cover is fixedly connected with the outer wall of the clamping block, the annular rack is meshingly connected with a gear, the outer wall above the gear is rotatably connected with a micro servo motor, the micro servo motor is slidingly connected with the outer wall of the collection cover, the outer wall below the gear is fixedly connected with a second push spring, the outer surface of the second push spring is sleeved with a fourth telescopic rod, and the outer wall below the second push spring is fixedly connected with a scraper.

[0014] (Three) beneficial effects

[0015] The application provides a resin model 3D printing device.

[0016] The resin model 3D printing device is provided with the following beneficial effects:

[0017] (II), the resin model 3D printing device, the worktable residual waste can be cleaned through the cleaning structure, guided into the collection box through the guide plate, and the impurities generated by the pre-cleaning of the printing head fall into the storage box drawer through the pipeline, so that the waste is collected and cleaned uniformly, the inside of the equipment is kept clean, and the printing effect and equipment operation are prevented from being affected by the accumulation of waste.

[0018] (III), the resin model 3D printing device, by applying force to the first movable plate, the first movable plate is moved by the telescopic rod and the reset spring, the model is lowered to the workbench bonding surface, the model is easily taken, the model is prevented from being damaged due to forced removal, and the model yield is improved.

[0019] (IV), the resin model 3D printing device, the components such as the filter box, the sponge and the air suction pipe of the filter structure, the pre-cleaning structure and the air suction structure are convenient to disassemble and assemble, convenient to clean and replace; the spring reset design of each component makes the device reset simple after maintenance, reduces the maintenance time and difficulty, reduces the equipment maintenance cost, and prolongs the service life of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structure diagram of the protective cover of the application;

[0021] Figure 2 It is a structure diagram of the printing equipment of the application;

[0022] Figure 3 It is a structure diagram of the base assembly of the application;

[0023] Figure 4 It is a structure diagram of the workbench structure of the application;

[0024] Figure 5 It is a structure diagram of the collection assembly of the application;

[0025] Figure 6 It is a structure diagram of the cleaning structure of the application;

[0026] Figure 7 It is a structure diagram of the application Figure 6 It is a structure diagram of A in the application;

[0027] Figure 8 It is a structure diagram of the discharge assembly of the application;

[0028] Figure 9 It is a structure diagram of the filter structure of the application;

[0029] Figure 10 It is a structure diagram of the locking structure of the application;

[0030] Figure 11 It is a structure diagram of the application Figure 9Structure schematic diagram of the middle B;

[0031] Figure 12 Structure schematic diagram of the pre-cleaning structure of the application;

[0032] Figure 13 Structure schematic diagram of the pre-cleaning structure section of the application;

[0033] Figure 14 Structure schematic diagram of the whole of the application.

[0034] In the figure: 1, protective cover; 2, printing device; 21, base assembly; 211, mounting rack; 212, workbench structure; 2121, mounting plate; 2122, first movable plate; 2123, workbench; 2124, first telescopic rod; 2125, first return spring; 2126, reinforcing rod; 214, collection assembly; 2141, guide plate; 2142, collection box; 215, shaft; 216, pulley set; 217, one-way threaded rod; 218, movable block; 210, cleaning structure; 2101, cleaning plate; 2102, second movable plate; 2103, second telescopic rod; 2104, second return spring; 22, gantry; 23, discharging assembly; 231, printing head; 232, pre-cleaning structure; 2321, protective box; 2322, collection tank structure; 23221, collection cover; 23222, annular rack; 23223, third telescopic rod; 23224, first push spring; 23225, gear; 23226, micro servo motor; 23227, second push spring; 23228, fourth telescopic rod; 23229, scraper; 2323, clamping block; 2324, storage box; 2325, pipeline; 2326, drawer; 2327, sponge; 233, air suction structure; 2331, air suction pipe; 2332, fifth telescopic rod; 2333, third push spring; 2334, arc-shaped locking plate; 2335, mounting ring; 234, filtering structure; 2341, filtering box; 2342, first filtering plate; 2343, second filtering plate; 2345, locking structure; 23451, sixth telescopic rod; 23452, third return spring; 23453, moving block; 23454, seventh telescopic rod; 23455, tension spring; 23456, clamping plate; 25, take-up reel. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0036] Please refer to Figures 1-14 The application provides a technical scheme: a resin model 3D printing device, which comprises a protective cover 1, a printing device 2 fixedly connected inside the protective cover 1, a base assembly 21 arranged inside the printing device 2, the base assembly 21 being fixedly connected with the inner wall below the protective cover 1, an gantry 22 fixedly connected with the outer wall above the base assembly 21, a take-up reel 25 fixedly connected with the outer wall above the gantry 22, and a discharging assembly 23 fixedly connected with the outer wall of the gantry 22, and further comprising: a workbench structure 212; the workbench structure 212 comprises a mounting plate 2121, a first telescopic rod 2124 fixedly connected with the inner wall of the mounting plate 2121, a first return spring 2125 arranged outside the first telescopic rod 2124, a reinforcing rod 2126 fixedly connected with the inner wall of the mounting plate 2121 on one side of the first telescopic rod 2124, a first movable plate 2122 fixedly connected with the top of the first telescopic rod 2124, a workbench 2123 fixedly connected with the outer wall below the mounting plate 2121, and a cleaning structure 210 attached to the outer wall above the first movable plate 2122; the cleaning structure 210 comprises a cleaning plate 2101, a second telescopic rod 2103 fixedly connected with the inside of the cleaning plate 2101, a second return spring 2104 sleeved outside the second telescopic rod 2103, and a second movable plate 2102 fixedly connected with the inner wall of the second telescopic rod 2103 away from the cleaning plate 2101.

[0037] The outer wall below the first movable plate 2122 on both sides is attached to the outer wall above the mounting plate 2121, the outer wall below the first telescopic rod 2124 is fixedly connected with the outer wall above the workbench 2123, the outer wall above the first movable plate 2122 is attached to the outer wall below the second movable plate 2102, the outer wall below the workbench 2123 is fixedly connected with a collecting assembly 214, the inside of the base assembly 21 is provided with a mounting bracket 211, the outer wall of the mounting bracket 211 is provided with a shaft 215, the outer wall of the shaft 215 is drivingly connected with a belt pulley set 216, the inner wall of one end of the belt pulley set 216 away from the mounting bracket 211 is drivingly connected with a one-way threaded rod 217, the outer wall of the one-way threaded rod 217 is slidingly connected with a movable block 218, the outer wall of the movable block 218 is fixedly connected with the outer wall of the cleaning structure 210, the outer wall of the mounting bracket 211 is slidingly connected with the outer wall of the workbench 2123, the collecting assembly 214 comprises a guide plate 2141, the inner wall below the guide plate 2141 is fixedly connected with a collecting box 2142, the outer wall of the collecting box 2142 is slidingly connected with the inner wall of the guide plate 2141, the discharging assembly 23 comprises a printing head 231, the outer wall above the printing head 231 is fixedly connected with a pre-cleaning structure 232, the outer wall of the printing head 231 is fixedly connected with an air suction structure 233, one end of the air suction structure 233 away from the printing head 231 is clamped with a filter structure 234, and the filter structure 234 is fixed to the outer wall above the electrical equipment.

[0038] The filter structure 234 comprises a filter box 2341, the inner wall of the filter box 2341 is fixedly connected with a first filter plate 2342 and a second filter plate 2343, the first filter plate 2342 is located above the second filter plate 2343, the outer wall of both sides of the filter box 2341 is clamped with a locking structure 2345, the locking structure 2345 further comprises a sixth telescopic rod 23451, one end of the sixth telescopic rod 23451 away from the filter box 2341 is fixedly connected with a moving block 23453, the outer part of the sixth telescopic rod 23451 is sleeved with a third return spring 23452, the inner wall of the moving block 23453 is fixedly connected with a seventh telescopic rod 23454, the outer part of the seventh telescopic rod 23454 is sleeved with a tension spring 23455, one end of the seventh telescopic rod 23454 away from the inner wall of the moving block 23453 is fixedly connected with a clamping plate 23456, the inner wall of the clamping plate 23456 is clamped with the protrusion of the outer wall of the filter box 2341.

[0039] The air suction structure 233 comprises an air suction pipe 2331, the outer wall of the air suction pipe 2331 is clamped with an arc-shaped locking plate 2334, the outer wall of the arc-shaped locking plate 2334 is fixedly connected with a fifth telescopic rod 2332, the outer part of the fifth telescopic rod 2332 is sleeved with a third thrust spring 2333, the outer wall of one end of the fifth telescopic rod 2332 away from the arc-shaped locking plate 2334 is fixedly connected with a mounting ring 2335, and the mounting ring 2335 is fixed to the inner wall of the filter box 2341.

[0040] The pre-cleaning structure 232 comprises a protective box 2321, the inside of the protective box 2321 is fixedly intercepted with a collection tank structure 2322, the inside of the collection tank structure 2322 is slidingly connected with a clamping block 2323, the inner wall of the clamping block 2323 is pasted with a sponge 2327, the inner wall below the collection tank structure 2322 is fixedly connected with a pipeline 2325 extending out of the protective box 2321, one end of the pipeline 2325 away from the collection tank structure 2322 is throughly connected with a storage box 2324, and the inner wall of the storage box 2324 is slidingly connected with a drawer 2326.

[0041] The collecting tank structure 2322 comprises a collecting cover 23221, the inner wall of the collecting cover 23221 is fixedly connected with an annular rack 23222, the collecting cover 23221 located on the opposite surface of the annular rack 23222 is fixedly connected with a third telescopic rod 23223, the third telescopic rod 23223 is externally sleeved with a first push spring 23224, one end of the third telescopic rod 23223 away from the inner wall of the collecting cover 23221 is fixedly connected with the outer wall of a clamping block 2323, the annular rack 23222 is meshingly connected with a gear 23225, the outer wall above the gear 23225 is rotatably connected with a micro servo motor 23226, the micro servo motor 23226 is slidably connected with the outer wall of the collecting cover 23221, the outer wall below the gear 23225 is fixedly connected with a second push spring 23227, the second push spring 23227 is externally sleeved with a fourth telescopic rod 23228, and the outer wall below the second push spring 23227 is fixedly connected with a scraper 23229.

[0042] In use, the device power is turned on, the printing device 2 in the protective cover 1 is powered on and initialized, the printing head 231 arranged inside the discharging assembly 23 is started to preheat, the suitable resin material extrusion temperature is reached, the take-up reel 25 rotates to release the resin consumables required for printing, is guided by the guide structure of the gantry 22, is conveyed to the feeding port of the printing head 231, at the same time, the base assembly 21, the workbench structure 212 and other components are self-checked, the first telescopic rod 2124, the second telescopic rod 2103 and other components are reset to the initial position, the cleaning structure 210 returns to the edge of the workbench and waits for orders, the sponge 2327 of the pre-cleaning structure 232 is in the initial clamping state, the suction structure 233 and the filtering structure 234 are powered on and are ready to start the purification process, and the mounting rack 211 can provide a mounting position for the workbench structure 212.

[0043] After the printing program is started, the gantry 22 drives the printing head 231 to move above the workbench 2123 of the workbench structure 212 according to the preset model track, the printing head 231 continuously extrudes the resin material to accumulate layer by layer, the waste gas generated in the printing process is sucked in by the suction pipe 2331 of the suction structure 233 in real time, is conveyed to the filter box 2341 of the filtering structure 234 through the pipeline 2325, is purified by the first filter plate 2342 and the second filter plate 2343 in sequence, and after impurities and harmful components are removed, is discharged to the outside of the equipment, so that the printing environment is kept clean.

[0044] When the workbench surface has residual waste affecting printing in the printing operation, the shaft rod 215 in the base assembly 21 starts to rotate, drives the one-way threaded rod 217 to rotate through the belt pulley set 216, and the one-way threaded rod 217 converts the rotary motion into linear motion. By controlling the forward and reverse rotation of the motor to drive the one-way threaded rod 271 to reciprocate, the movable block 218 drives the cleaning structure 210 to reciprocate along the surface of the workbench 2123. The second reset spring 2104 inside the cleaning plate 2101 drives the second telescopic rod 2103 to expand through its elasticity, and drives the second movable plate 2102 to adhere to the surface of the first movable plate 2122 to clean the residual waste. The waste is guided by the guide plate 2141 inside the collection assembly 214 and falls into the collection box 2142. After the printing operation is completed, the micro servo motor 23226 inside the collection tank structure 2322 is started to drive the gear 23225 to rotate, which drives the scraper 23229 to move around the collection cover 23221 through the ring gear 23222. At the same time, since the inner wall below the collection cover 23221 has a slope, the scraper 23229 extrudes the fourth telescopic rod 23228 when moving to drive the second push spring 23227 to contract. When moving to different slope positions, the second push spring 23227 resets through its elasticity to drive the scraper 23229 to rise and fall, so that the outer wall below the scraper 23229 adheres to the outer wall below the inside of the collection cover 23221 to clean the inner wall of the collection cover 23221. The impurities cleaned fall into the drawer 2326 of the storage box 2324 through the pipeline 2325.

[0045] After the printing operation is completed, the first telescopic rod 2124 is contracted by applying a downward force to the first movable plate 2122, and the first reset spring 2125 is extruded to contract, which drives the first movable plate 2122 to move to the inside of the mounting plate 2121, so that the outer wall below the printed model is separated from the outer wall above the first movable plate 2122, and the model is easily taken off the workbench 2123, which reduces the adhesion between the model and the workbench 2123. The reinforcing rod 2126 can strengthen the strength of the mounting plate 2121.

[0046] When cleaning or replacing the first filter plate 2342 and the second filter plate 2343 inside the filter box 2341 during regular maintenance, the sixth telescopic rod 23451 of the locking structure 2345 is retracted, the third return spring 23452 is deformed, the moving block 23453 drives the seventh telescopic rod 23454 and the clamping plate 23456 to disengage the protrusions on the outer wall of the filter box 2341, the filter box 2341 is removed, and the first filter plate 2342 and the second filter plate 2343 inside the filter box 2341 are cleaned or replaced. After cleaning, the locking structure 2345 is operated in reverse to re-clamp and fix the filter box 2341. For the pre-cleaning structure 232, the drawer 2326 of the storage box 2324 can be pulled out to pour out the accumulated waste inside. If the adsorption capacity of the sponge 2327 decreases, the protective box 2321 can be opened, the third telescopic rod 23223 and the first push spring 23224 are adjusted, the clamping block 2323 is removed, the sponge 2327 is replaced, and the pre-cleaning effect is ensured. After cleaning, all devices are reset, the tension spring 23455 loses tension, and through its own elasticity, the seventh telescopic rod 23454 is reset, and the clamping plate 23456 is also reset.

[0047] When disassembling the air suction pipe 2331 inside the air suction structure 233, the arc-shaped locking plate 2334 is separated from the air suction pipe 2331 by pulling outward, the third push spring 2333 drives the fifth telescopic rod 2332 to stretch through its own elasticity, and simultaneously drives the arc-shaped locking plate 2334 to move, so that the gap between the arc-shaped locking plates 2334 becomes smaller. When installing the air suction pipe 2331, the air suction pipe 2331 is inserted into the installation ring 2335, the outer wall of the air suction pipe 2331 is clamped with the arc-shaped locking plate 2334 and the annular groove on the outer wall of the air suction pipe 2331, and simultaneously the arc-shaped locking plate 2334 extrudes the fifth telescopic rod 2332 to make it contract, and simultaneously drives the third push spring 2333 to contract synchronously. Then, through the elasticity of the third push spring 2333, the arc-shaped locking plate 2334 moves inward to clamp the air suction pipe 2331.

[0048] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a... " does not, without more constraints, preclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0049] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A resin model 3D printing device, comprising a protective cover (1), a printing device (2) fixedly connected inside the protective cover (1), a base assembly (21) disposed inside the printing device (2), the base assembly (21) being fixedly connected to the inner wall below the protective cover (1), a gantry frame (22) fixedly connected to the outer wall above the base assembly (21), a take-up reel (25) fixedly connected to the outer wall above the gantry frame (22), and a discharge assembly (23) fixedly connected to the outer wall of the gantry frame (22), characterized in that, It also includes: workbench structure (212); The workbench structure (212) includes a mounting plate (2121), a first telescopic rod (2124) is fixedly connected to the inner wall of the mounting plate (2121), a first return spring (2125) is provided on the outside of the first telescopic rod (2124), a reinforcing rod (2126) is fixedly connected to the inner wall of the mounting plate (2121) on one side of the first telescopic rod (2124), a first movable plate (2122) is fixedly connected to the top of the first telescopic rod (2124), a workbench (2123) is fixedly connected to the outer wall below the mounting plate (2121), and a cleaning structure (210) is attached to the outer wall above the first movable plate (2122). The cleaning structure (210) includes a cleaning plate (2101), a second telescopic rod (2103) is fixedly connected inside the cleaning plate (2101), a second return spring (2104) is sleeved on the outside of the second telescopic rod (2103), a second movable plate (2102) is fixedly connected to the inner wall of the second telescopic rod (2103) away from the cleaning plate (2101), and the lower part of the second movable plate (2102) is located outside the cleaning plate (2101).

2. The resin model 3D printing device according to claim 1, characterized in that: The outer walls on both sides of the first movable plate (2122) are in contact with the outer wall above the mounting plate (2121), the outer wall below the first telescopic rod (2124) is fixedly connected to the outer wall above the workbench (2123), the outer wall above the first movable plate (2122) is in contact with the outer wall below the second movable plate (2102), a collection assembly (214) is fixedly connected to the outer wall below the workbench (2123), and a mounting frame (211) is provided inside the base assembly (21). 11) The outer wall is provided with a shaft (215), the outer wall of the shaft (215) is connected to a pulley group (216), the inner wall of the pulley group (216) away from the mounting frame (211) is connected to a one-way threaded rod (217), the outer wall of the one-way threaded rod (217) is slidably connected to a movable block (218), the outer wall of the movable block (218) is fixedly connected to the outer wall of the cleaning structure (210), and the outer wall of the mounting frame (211) is slidably connected to the outer wall of the worktable (2123).

3. The resin model 3D printing device according to claim 2, characterized in that: The collection assembly (214) includes a guide plate (2141), and a collection box (2142) is fixedly connected to the inner wall below the guide plate (2141). The outer wall of the collection box (2142) is slidably connected to the inner wall of the guide plate (2141).

4. The resin model 3D printing device according to claim 1, characterized in that: The discharge assembly (23) includes a print head (231), a pre-cleaning structure (232) is fixedly connected to the outer wall above the print head (231), an air suction structure (233) is fixedly connected to the outer wall of the print head (231), and a filter structure (234) is snapped onto the end of the air suction structure (233) away from the print head (231). The filter structure (234) is fixed to the outer wall above the electrical equipment.

5. The resin model 3D printing device according to claim 4, characterized in that: The filter structure (234) includes a filter box (2341). A first filter plate (2342) and a second filter plate (2343) are fixedly connected to the inner wall of the filter box (2341). The first filter plate (2342) is located above the second filter plate (2343). Locking structures (2345) are snapped onto the outer walls on both sides of the filter box (2341). The locking structure (2345) also includes a sixth telescopic rod (23451). The end of the sixth telescopic rod (23451) away from the filter box (2341) is fixedly connected to a movable... The moving block (23453) has a third return spring (23452) sleeved on the outside of the sixth telescopic rod (23451). The inner wall of the moving block (23453) is fixedly connected to a seventh telescopic rod (23454). The outer wall of the seventh telescopic rod (23454) is sleeved with a tension spring (23455). The end of the seventh telescopic rod (23454) away from the inner wall of the moving block (23453) is fixedly connected to a snap-fit ​​plate (23456). The inner wall of the snap-fit ​​plate (23456) is snapped into the protrusion on the outer wall of the filter box (2341).

6. The resin model 3D printing device according to claim 4, characterized in that: The air intake structure (233) includes an air intake pipe (2331), an arc-shaped locking plate (2334) is snapped onto the outer wall of the air intake pipe (2331), a fifth telescopic rod (2332) is fixedly connected to the outer wall of the arc-shaped locking plate (2334), a third thrust spring (2333) is sleeved on the outside of the fifth telescopic rod (2332), and an installation ring (2335) is fixedly connected to the outer wall of the end of the fifth telescopic rod (2332) away from the arc-shaped locking plate (2334), and the installation ring (2335) is fixed to the inner wall of the filter box (2341).

7. The resin model 3D printing device according to claim 4, characterized in that: The pre-cleaning structure (232) includes a protective box (2321), inside which a collection tank structure (2322) is fixedly intercepted. Inside the collection tank structure (2322), a clamping block (2323) is slidably connected. The inner wall of the clamping block (2323) is covered with a sponge (2327). The inner wall below the collection tank structure (2322) is fixedly connected to a pipe (2325) extending out of the protective box (2321). The end of the pipe (2325) away from the collection tank structure (2322) is connected to a storage box (2324). The inner wall of the storage box (2324) is slidably connected to a drawer (2326).

8. The resin model 3D printing device according to claim 7, characterized in that: The collection tank structure (2322) includes a collection cover (23221). An annular rack (23222) is fixedly connected to the inner wall of the collection cover (23221). A third telescopic rod (23223) is fixedly connected to the surface of the collection cover (23221) opposite to the annular rack (23222). A first thrust spring (23224) is sleeved on the outside of the third telescopic rod (23223). One end of the third telescopic rod (23223) away from the inner wall of the collection cover (23221) is fixedly connected to the outer wall of the clamping block (2323). The annular rack... (23222) is meshed with a gear (23225), and a micro servo motor (23226) is rotatably connected to the outer wall above the gear (23225). The micro servo motor (23226) is slidably connected to the outer wall of the collection cover (23221). A second thrust spring (23227) is fixedly connected to the outer wall below the gear (23225). A fourth telescopic rod (23228) is sleeved on the outside of the second thrust spring (23227). A scraper (23229) is fixedly connected to the outer wall below the second thrust spring (23227).

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