A polymer 3D printing device capable of continuous laser processing

Abstract

The present invention relates to the field of 3D printing technology, and specifically to a polymer 3D printing device capable of continuous laser processing, comprising a device body, a driving device arranged inside, a laser system arranged on the driving device, and further comprising: a processing table located below the laser system, and a collecting cylinder arranged at the bottom end of the inner part of the device body, and a connecting channel installed at the upper end of the collecting cylinder; a blocking component arranged at the connection between the processing table and the connecting channel; a control component for controlling the position of a movable bottom plate arranged for sliding; the beneficial effect is: the movable bottom plate is controlled by the control component to move to the bottom of the fixed bottom plate, so that the processing table is connected to the collecting cylinder through the connecting channel, and when the movable bottom plate moves to the bottom of the fixed bottom plate, the polymer powder on the surface of the movable bottom plate is pushed off by the fixed bottom plate, and then the polymer powder on the surface of the fixed bottom plate can be cleaned, and the collecting cylinder is set in a detachable state, which is convenient for collecting the polymer powder inside the collecting cylinder.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printing, and in particular to a polymer 3D printing device capable of continuous laser processing. Background Art

[0002] 3D printing, also known as three-dimensional printing, is a rapid prototyping process. In today's booming manufacturing industry, 3D printing technology, as a highly innovative and revolutionary manufacturing method, is gradually changing the landscape of traditional manufacturing. It has unique advantages, such as the ability to quickly prototype complex parts directly from digital models, eliminating the need for traditional molds and enabling highly customized production.

[0003] Currently, the 3D printers used in the field of metal materials and the manufacture of metal functional parts are generally laser 3D printers, which mainly use SLS technology to select areas for laser sintering of powder materials. That is, after the 3D drawing is layered, the powder material is sintered layer by layer according to the cross-sectional information. After completing a layer, a new layer of powder is brushed on the material, and the laser starts to sinter a new layer. Its advantages are high printing accuracy and high recycling rate of raw powder.

[0004] When the printing job is completed, a large amount of raw material powder will remain on the workbench. Therefore, before the next printing job begins, the raw material powder remaining on the workbench needs to be collected and recycled. In the current production process, the workbench is often disassembled manually, and then the metal powder on the workbench is cleaned and collected. During the disassembly and assembly process, a certain amount of time is wasted, which reduces the working efficiency of the laser 3D printer. Summary of the Invention

[0005] The purpose of the present invention is to provide a polymer 3D printing device capable of continuous laser processing to solve the problems raised by the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A polymer 3D printing device capable of continuous laser processing comprises a device body, a drive device is provided inside the device body, and a laser system is provided on the drive device, and is characterized in that it also includes:

[0008] A processing table is located below the laser system, and a collecting cylinder is provided at the bottom end of the interior of the equipment body at a position corresponding to the processing table. A connecting channel is installed at the upper end of the collecting cylinder, and the processing table is connected to the collecting cylinder through the connecting channel;

[0009] a blocking assembly, provided at the connection between the processing table and the connecting channel, for blocking the connection between the processing table and the connecting channel, the blocking assembly comprising a fixed bottom plate fixedly connected to the lower end of the processing table, and a movable bottom plate slidably provided below the fixed bottom plate;

[0010] A control component is used to control the position of the sliding movable base plate. The control component includes a transverse guide groove opened on the inner wall of the processing table. A guide block is installed on the side wall of the movable base plate at a position corresponding to the transverse guide groove.

[0011] Furthermore, the transverse guide groove is provided below the fixed base plate, and the movable base plate slides below the fixed base plate through the cooperation between the guide block and the transverse guide groove, and the total width of the fixed base plate and the movable base plate is the same as the size of the lower port of the processing table;

[0012] Two sets of vertical guide grooves are formed at one end of the transverse guide groove away from the fixed base plate;

[0013] The guide blocks are provided in two groups, and the spacing between the two groups of guide blocks is the same as the spacing between the two groups of vertical guide grooves.

[0014] Furthermore, a sink is provided at the lower end of the transverse guide groove, a reset plate is slidably provided inside the sink, and the reset plate is located on one side of one group of the guide blocks;

[0015] A second air bag is provided between the side wall of the reset plate and the inner side wall of the sink, and a second reset spring is provided inside the second air bag;

[0016] A first receiving groove is provided at the lower end of the processing table at a position corresponding to the upper end of the connecting channel, a first extrusion block is provided inside the first receiving groove, and a first air bag is provided between the upper end of the first extrusion block and the inner top end of the first receiving groove;

[0017] A first exhaust pipe is provided between the first airbag and the second airbag, and the first airbag is connected to the second airbag through the first exhaust pipe.

[0018] Furthermore, a countersunk hole is formed on the side wall of the transverse guide groove at a position corresponding to the guide block, and a first return spring is disposed inside the countersunk hole;

[0019] The end of the first return spring away from the countersunk hole is connected to a push plate, and the push plate is elastically slidably arranged on the side of the guide block away from the reset plate through the first return spring, and a limiting groove is provided at the inner top end of the transverse guide groove corresponding to the position of the push plate.

[0020] Furthermore, a lifting assembly is provided inside the processing table for lifting the movable bottom plate upward;

[0021] The lifting assembly includes a second receiving groove opened at the lower end position of the horizontal guide groove, the second receiving groove is located below the vertical guide groove, and a push rod is inserted into the interior of the second receiving groove, and a fourth return spring is arranged between the lower end of the push rod and the inner bottom end of the second receiving groove.

[0022] Furthermore, a clearance groove is provided at the lower end of the processing table at a position corresponding to the upper end of the connecting channel, a limit plate is fixedly provided inside the clearance groove, a push rod is sealingly and slidably provided on the limit plate, a third sealing plate is installed on the upper end of the push rod, and a sixth return spring is provided between the upper end of the third sealing plate and the inner top end of the clearance groove;

[0023] A third airbag is arranged between the lower end of the push rod and the inner bottom end of the second receiving groove. A third exhaust pipe is opened at the side wall position of the upper end of the limiting plate corresponding to the third airbag and the give way groove. The third airbag is connected to the give way groove through the third exhaust pipe.

[0024] Furthermore, a second fixing groove and a third fixing groove are formed on the side wall of the push rod, the second fixing groove is located above the third fixing groove, and a third receiving groove is formed on the side wall of the second receiving groove at a position corresponding to the second fixing groove, a fixing block is inserted into the interior of the third receiving groove, and a seventh return spring is provided between the end of the fixing block and the inner wall of the third receiving groove;

[0025] A fourth receiving groove is provided on the inner wall of the give way groove corresponding to the upper position of the limit plate, a first trigger block is inserted into the interior of the fourth receiving groove, and an eighth return spring is provided between the side wall of the first trigger block and the inner wall of the fourth receiving groove, a first through hole is provided between the fourth receiving groove and the third receiving groove, a first pull rope is provided inside the first through hole, and both ends of the first pull rope are respectively connected to the end of the fixed block and the side wall of the first trigger block.

[0026] Furthermore, a sixth receiving groove is provided on the inner wall of the giving way groove at a position corresponding to the upper portion of the limiting plate, and the sixth receiving groove is close to the top end of the giving way groove;

[0027] A second trigger block is inserted into the interior of the sixth receiving groove, and a tenth return spring is provided between the end of the second trigger block and the inner wall of the sixth receiving groove;

[0028] A fifth receiving groove is formed at an upper end portion of one end of the limiting groove away from the countersunk hole, an insert block is inserted into the interior of the fifth receiving groove, and a ninth return spring is provided between the upper end portion of the insert block and the inner top end of the fifth receiving groove, and a first fixing groove is formed at the upper end portion of the push plate at a position corresponding to the insert block;

[0029] A second through hole is provided between the sixth receiving slot and the fifth receiving slot, a second pull rope is provided inside the second through hole, and two ends of the second pull rope are respectively connected to the upper end of the insertion block and the side wall of the second trigger block.

[0030] Furthermore, a second air storage chamber is provided inside the processing table at a position corresponding to the third exhaust pipe, a fourth exhaust pipe is provided between the second air storage chamber and the third exhaust pipe, and a second sealing plate is provided in a sealing and sliding manner inside the second air storage chamber, and a fifth return spring is provided between an upper end of the second sealing plate and an inner top end of the second air storage chamber;

[0031] A first air storage chamber is provided inside the processing table at a position corresponding to the first exhaust pipe, a second exhaust pipe is provided between the first air storage chamber and the first exhaust pipe, and a first sealing plate is provided for sliding sealing inside the first air storage chamber, and a third return spring is provided between the side wall of the first sealing plate and the inner side wall of the first air storage chamber.

[0032] Furthermore, a filter screen is provided inside the collecting cylinder, and a plurality of groups of stirring rods distributed at intervals are rotatably provided on the upper end of the filter screen.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] 1. The present invention realizes the disconnection of the connection between the processing table and the connecting channel by cooperating with the fixed bottom plate and the movable bottom plate. At the same time, the fixed bottom plate and the movable bottom plate can serve as the base of the processing table, which is convenient for 3D printing. After printing is completed, the movable bottom plate is controlled by the control component to move the sliding arrangement to the bottom of the fixed bottom plate, so that the processing table is connected to the collecting cylinder through the connecting channel. When the movable bottom plate moves to the bottom of the fixed bottom plate, the polymer powder on the surface of the movable bottom plate is pushed off by the fixed bottom plate, and then the polymer powder on the surface of the fixed bottom plate can be cleaned. The collecting cylinder is set to a detachable state, which is convenient for collecting the polymer powder inside the collecting cylinder.

[0035] 2. The filter screen can filter the polymer powder. During the filtering process, the rotating stirring rod drives the polymer powder to rotate, thereby accelerating the filtering efficiency of the filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0037] Figure 2 This is a schematic diagram of the connection between the collecting cylinder and the processing table structure of the present invention;

[0038] Figure 3 It is a cross-sectional schematic diagram of the connection between the collecting cylinder and the processing table structure of the present invention;

[0039] Figure 4 for Figure 3 A schematic diagram of the structure at center A;

[0040] Figure 5 This is a schematic diagram of the connection between the movable base plate and the guide block structure of the present invention;

[0041] Figure 6 It is a cross-sectional schematic diagram of the side wall of the processing table structure of the present invention;

[0042] Figure 7 for Figure 6 A magnified schematic diagram of the structure at point B in the middle;

[0043] Figure 8 for Figure 6 A magnified schematic diagram of the structure at point C in the middle;

[0044] Figure 9 for Figure 6 A magnified schematic diagram of the structure at D in the middle;

[0045] Figure 10 for Figure 9 A magnified schematic diagram of the structure at E in the middle;

[0046] Figure 11 for Figure 6 Enlarged schematic diagram of the structure at F in the middle.

[0047] In the figure: the device body 1, the driving device 2, the laser system 3, the collecting cylinder 4, the processing table 5, the connecting channel 6, the filter 7, the stirring rod 8, the fixed bottom plate 9, the movable bottom plate 10, the horizontal guide groove 11, the vertical guide groove 12, the first receiving groove 13, the first air bag 14, the first exhaust pipe 15, the first extrusion block 16, the guide block 17, the countersunk hole 18, the first return spring 19, the push plate 20, the first fixed groove 21, the sinking groove 22, the second air bag 23, the second return spring 24, the return plate 25, the second exhaust pipe 26, the first air storage chamber 27, the first sealing plate 28, the third return spring 29, the second receiving groove 30, the ejector rod 31, the second fixed groove 32, the third fixed groove Fixed groove 33, fourth return spring 34, third airbag 35, third exhaust duct 36, fourth exhaust duct 37, second air storage chamber 38, second sealing plate 39, fifth return spring 40, give way groove 41, limit plate 42, push rod 43, third sealing plate 44, sixth return spring 45, third receiving groove 46, seventh return spring 47, fixed block 48, first through hole 49, first pull rope 50, fourth receiving groove 51, first trigger block 52, eighth return spring 53, limit groove 54, second through hole 55, second pull rope 56, fifth receiving groove 57, insert block 58, ninth return spring 59, sixth receiving groove 60, second trigger block 61, tenth return spring 62. DETAILED DESCRIPTION

[0048] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples. Example 1:

[0049] See also Figures 1 to 11 The present invention provides a technical solution: a polymer 3D printing device capable of continuous laser processing, comprising a device body 1, a driving device 2 disposed inside the device body 1, and a laser system 3 disposed on the driving device 2, characterized in that it also includes:

[0050] A processing table 5 is located below the laser system 3, and a collecting cylinder 4 is provided at the bottom end of the interior of the equipment body 1 at a position corresponding to the processing table 5. A connecting channel 6 is installed at the upper end of the collecting cylinder 4, and the processing table 5 is connected to the collecting cylinder 4 through the connecting channel 6;

[0051] a blocking assembly provided at the connection between the processing table 5 and the connecting passage 6, for blocking the connection between the processing table 5 and the connecting passage 6, the blocking assembly comprising a fixed bottom plate 9 fixedly connected to the lower end of the processing table 5, and a movable bottom plate 10 slidably provided below the fixed bottom plate 9;

[0052] a control assembly for controlling the position of a sliding movable base plate 10, the control assembly comprising a transverse guide groove 11 formed in the inner wall of the processing table 5, and guide blocks 17 mounted on the side walls of the movable base plate 10 at positions corresponding to the transverse guide groove 11;

[0053] In the printing state, the control component controls the movable base plate 10 to move to the side of the fixed base plate 9. Through the cooperation of the fixed base plate 9 and the movable base plate 10, the connection between the processing table 5 and the connecting channel 6 is blocked, which facilitates the laser system 3 to process and sinter the polymer powder.

[0054] After printing is completed, the control component controls the movable base plate 10 to move to the bottom of the fixed base plate 9, so that the processing table 5 is connected with the collecting tube 4 through the connecting channel 6. At this time, the polymer powder on the processing table 5 can be cleaned into the collecting tube 4 without disassembling the processing table 5. Example 2:

[0055] like Figure 2 Figure 3 as well as Figure 5 As shown, the structure of the polymer 3D printing device capable of continuous laser processing disclosed in the second embodiment of the present invention is basically the same as that in the first embodiment, except that;

[0056] The transverse guide groove 11 is provided below the fixed base plate 9. The movable base plate 10 slides below the fixed base plate 9 through the cooperation between the guide block 17 and the transverse guide groove 11. The total width of the fixed base plate 9 and the movable base plate 10 is the same as the size of the lower port of the processing table 5.

[0057] Two sets of vertical guide grooves 12 are formed at one end of the transverse guide groove 11 away from the fixed base plate 9;

[0058] There are two groups of guide blocks 17, and the spacing between the two groups of guide blocks 17 is the same as the spacing between the two groups of vertical guide grooves 12;

[0059] By cooperating with the guide block 17 and the transverse guide groove 11, the movable base plate 10 can be moved below the fixed base plate 9, and the opening of the vertical guide groove 12 can enable the guide block 17 to move upward along the vertical guide groove 12, thereby making the movable base plate 10 and the fixed base plate 9 located on the same horizontal plane. Example 3:

[0060] like Figure 2 As shown, the structure of the polymer 3D printing device capable of continuous laser processing disclosed in the third embodiment of the present invention is basically the same as that in the second embodiment, except that:

[0061] A sink 22 is formed at the lower end of the transverse guide groove 11. A reset plate 25 is slidably provided inside the sink 22. The reset plate 25 is located on one side of one group of the guide blocks 17.

[0062] A second airbag 23 is provided between the side wall of the reset plate 25 and the inner side wall of the sink 22 , and a second reset spring 24 is provided inside the second airbag 23 ;

[0063] A first receiving groove 13 is formed at the lower end of the processing table 5 at a position corresponding to the upper end of the connecting channel 6. A first extrusion block 16 is disposed inside the first receiving groove 13, and a first air bag 14 is disposed between the upper end of the first extrusion block 16 and the inner top of the first receiving groove 13.

[0064] A first exhaust pipe 15 is provided between the first airbag 14 and the second airbag 23 , and the first airbag 14 is connected to the second airbag 23 through the first exhaust pipe 15 ;

[0065] When it is necessary to move the movable base plate 10 to the bottom of the fixed base plate 9, the processing table 5 is moved down to the upper end of the connecting channel 6. At this time, the connecting channel 6 squeezes the first extrusion block 16, and the first airbag 14 at the upper end of the first extrusion block 16 is compressed. The internal gas of the first airbag 14 is discharged to the inside of the second airbag 23 through the first exhaust pipe 15. The second airbag 23 expands and pushes the guide block 17 to move along the transverse guide groove 11 through the reset plate 25, thereby realizing the movement of the movable base plate 10 to the bottom of the fixed base plate 9. Example 4:

[0066] like Figure 7 As shown, the structure of the polymer 3D printing device capable of continuous laser processing disclosed in the fourth embodiment of the present invention is basically the same as that in the third embodiment, except that:

[0067] A countersunk hole 18 is formed on the side wall of the transverse guide groove 11 at a position corresponding to the guide block 17 , and a first return spring 19 is disposed inside the countersunk hole 18 ;

[0068] The first return spring 19 has an end away from the countersunk hole 18 connected to a push plate 20. The push plate 20 is elastically slidably arranged on a side of the guide block 17 away from the return plate 25 by the first return spring 19. A limiting groove 54 is formed at the inner top end of the transverse guide groove 11 corresponding to the position of the push plate 20.

[0069] When the guide block 17 moves, the push plate 20 moves along the limiting groove 54 , and during the movement, the first return spring 19 is compressed. Embodiment 5:

[0070] like Figure 5 and Figure 8 As shown, the structure of the polymer 3D printing device capable of continuous laser processing disclosed in the fifth embodiment of the present invention is basically the same as that in the fourth embodiment, except that:

[0071] The processing table 5 is provided with a lifting assembly inside for lifting the movable bottom plate 10 upward;

[0072] The lifting assembly includes a second receiving groove 30 opened at the lower end position of the transverse guide groove 11, the second receiving groove 30 is located below the vertical guide groove 12, and a push rod 31 is inserted into the interior of the second receiving groove 30, and a fourth return spring 34 is provided between the lower end of the push rod 31 and the inner bottom end of the second receiving groove 30.

[0073] A clearance groove 41 is formed at the lower end of the processing table 5 at a position corresponding to the upper end of the connecting channel 6. A limit plate 42 is fixedly provided inside the clearance groove 41. A push rod 43 is slidingly provided on the limit plate 42 in a sealing manner. A third sealing plate 44 is mounted on the upper end of the push rod 43. A sixth return spring 45 is provided between the upper end of the third sealing plate 44 and the inner top end of the clearance groove 41.

[0074] A third airbag 35 is provided between the lower end of the push rod 31 and the inner bottom end of the second receiving groove 30. A third exhaust duct 36 is provided at a position on the side wall of the third airbag 35 and the upper end of the limiting plate 42 corresponding to the upper end of the limiting plate 42. The third airbag 35 is connected to the giving way groove 41 through the third exhaust duct 36.

[0075] During printing, the processing table 5 rises to a designated position, at which point the processing table 5 is separated from the connecting channel 6. During separation, the first airbag 14 is no longer compressed, and the push plate 20, under the action of the first return spring 19, pushes the guide block 17 to move along the transverse guide groove 11.

[0076] At the same time, the push rod 43 is no longer resisted. At this time, the third sealing plate 44 moves downward under the action of the sixth return spring 45. The gas between the limit plate 42 and the third sealing plate 44 is discharged to the inside of the third airbag 35 through the third exhaust pipe 36. The third airbag 35 expands and pushes the guide block 17 to move upward along the vertical guide groove 12, so that the movable bottom plate 10 and the fixed bottom plate 9 are located on the same horizontal plane. Example 6:

[0077] like Figures 9-11 As shown, the structure of the polymer 3D printing device capable of continuous laser processing disclosed in the sixth embodiment of the present invention is basically the same as that in the fifth embodiment, except that:

[0078] A second fixing groove 32 and a third fixing groove 33 are formed on the side wall of the push rod 31. The second fixing groove 32 is located above the third fixing groove 33. A third receiving groove 46 is formed on the side wall of the second receiving groove 30 at a position corresponding to the second fixing groove 32. A fixing block 48 is inserted into the interior of the third receiving groove 46, and a seventh return spring 47 is provided between the end of the fixing block 48 and the inner wall of the third receiving groove 46.

[0079] A fourth receiving groove 51 is provided on the inner wall of the give way groove 41 at a position above the limit plate 42, a first trigger block 52 is inserted into the interior of the fourth receiving groove 51, and an eighth reset spring 53 is provided between the side wall of the first trigger block 52 and the inner wall of the fourth receiving groove 51, a first through hole 49 is provided between the fourth receiving groove 51 and the third receiving groove 46, a first pull rope 50 is provided inside the first through hole 49, and both ends of the first pull rope 50 are respectively connected to the end of the fixed block 48 and the side wall of the first trigger block 52.

[0080] A sixth receiving groove 60 is formed on the inner wall of the clearance groove 41 at a position above the limiting plate 42 , and the sixth receiving groove 60 is close to the top of the clearance groove 41 ;

[0081] A second trigger block 61 is inserted into the sixth receiving groove 60 , and a tenth return spring 62 is provided between the end of the second trigger block 61 and the inner wall of the sixth receiving groove 60 ;

[0082] A fifth receiving groove 57 is defined at the upper end of the limiting groove 54 away from the countersunk hole 18. An insert block 58 is inserted into the fifth receiving groove 57. A ninth return spring 59 is provided between the upper end of the insert block 58 and the inner top end of the fifth receiving groove 57. A first fixing groove 21 is defined at the upper end of the push plate 20 at a position corresponding to the insert block 58.

[0083] A second through hole 55 is defined between the sixth receiving slot 60 and the fifth receiving slot 57 . A second pull rope 56 is disposed within the second through hole 55 . Two ends of the second pull rope 56 are connected to the upper end of the insert block 58 and the side wall of the second trigger block 61 , respectively.

[0084] When the movable base plate 10 is located below the fixed base plate 9, the elastically arranged fixed block 48 will be inserted into the inside of the second fixed groove 32 to limit the elastically arranged top rod 31. When the top rod 31 lifts the movable base plate 10, the elastically arranged fixed block 48 will be inserted into the inside of the third fixed groove 33 to limit the elastically arranged top rod 31 to prevent the movable base plate 10 from being displaced. At the same time, the elastically arranged insert block 58 will be inserted into the inside of the first fixed groove 21 to limit the sliding push plate 20. Embodiment seven:

[0085] like Figures 8-10 As shown, the structure of the polymer 3D printing device capable of continuous laser processing disclosed in the seventh embodiment of the present invention is basically the same as that in the sixth embodiment, except that:

[0086] A second air storage chamber 38 is defined within the processing table 5 at a position corresponding to the third exhaust duct 36. A fourth exhaust duct 37 is defined between the second air storage chamber 38 and the third exhaust duct 36. A second sealing plate 39 is provided in a sealing and sliding manner within the second air storage chamber 38. A fifth return spring 40 is provided between the upper end of the second sealing plate 39 and the top end of the second air storage chamber 38.

[0087] A first air storage chamber 27 is defined within the processing table 5 at a position corresponding to the first exhaust duct 15. A second exhaust duct 26 is defined between the first air storage chamber 27 and the first exhaust duct 15. A first sealing plate 28 is provided in a sealing and sliding manner within the first air storage chamber 27. A third return spring 29 is provided between a side wall of the first sealing plate 28 and an inner side wall of the first air storage chamber 27.

[0088] During cleaning, the processing table 5 contacts the connecting channel 6, the elastic push rod 43 is abutted, and at the same time, the elastic fixing block 48 is inserted into the second fixing groove 32. When the processing table 5 moves upward, the push rod 43 is no longer abutted. At this time, the gas between the limiting plate 42 and the third sealing plate 44 is discharged into the second air storage chamber 38 through the fourth exhaust pipe 37. When the elastic fixing block 48 is no longer inserted into the second fixing groove 32, the gas in the second air storage chamber 38 is discharged into the third air bag 35 through the third exhaust pipe 36 and abuts the push rod 31 upward.

[0089] Before cleaning is required, the elastically set plug block 58 is inserted into the first fixed groove 21 to slide and limit the push plate 20. When cleaning is required, the processing table 5 and the connecting channel 6 are in contact. At this time, the first extrusion block 16 is squeezed, and the internal gas of the first airbag 14 is discharged to the inside of the first air storage chamber 27 through the first exhaust pipe 15 and the second exhaust pipe 26. When the elastically set plug block 58 is no longer inserted into the inside of the first fixed groove 21, the internal gas of the first air storage chamber 27 is discharged to the inside of the second airbag 23 through the first exhaust pipe 15. The second airbag 23 expands, pushing the movable bottom plate 10 to move below the fixed bottom plate 9. Embodiment 8:

[0090] like Figure 2 As shown, the polymer 3D printing device capable of continuous laser processing disclosed in the eighth embodiment of the present invention has a structure substantially the same as that in the seventh embodiment, except that:

[0091] The collecting cylinder 4 is provided with a filter screen 7 inside, and the upper end of the filter screen 7 is rotatably provided with a plurality of stirring rods 8 distributed at intervals;

[0092] The filter screen 7 can filter the polymer powder. During the filtering process, the rotating stirring rod 8 drives the polymer powder to rotate, thereby accelerating the filtering efficiency of the filter screen 7.

[0093] Specifically, when printing is completed and cleaning is required, the processing table 5 moves downward to contact the connecting channel 6, the first airbag 14 is compressed, and the elastic insert 58 is inserted into the first fixing groove 21 to limit the sliding movement of the push plate 20. Therefore, the gas inside the first airbag 14 is discharged into the first air storage chamber 27 through the first exhaust pipe 15 and the second exhaust pipe 26 for storage.

[0094] At the same time, the elastic push rod 43 is pressed against the third sealing plate 44 and the limiting plate 42, and the space between the third airbag 35 is increased. At this time, the gas inside the third airbag 35 is discharged into the space between the third sealing plate 44 and the limiting plate 42 through the third exhaust pipe 36.

[0095] When the third sealing plate 44 moves upward along the yield groove 41, it first abuts against the first trigger block 52. The first trigger block 52 drives the fixing block 48 to move out of the third fixing groove 33 through the first pull rope 50. After the fixing block 48 in the third fixing groove 33 moves out, the gas inside the third airbag 35 is discharged through the third exhaust pipe 36. At this time, the push rod 31 moves downward under the action of the fourth return spring 34. At the same time, the movable bottom plate 10 moves downward synchronously with the cooperation of the guide block 17. At the same time, the elastically arranged fixing block 48 is inserted into the second fixing groove 32.

[0096] When the guide block 17 moves down to the side of the reset plate 25, the upward moving third sealing plate 44 will squeeze the second trigger block 61, and the second trigger block 61 will pull the plug block 58 out of the first fixed groove 21 through the second pull rope 56. When the first fixed groove 21 is no longer limited, the gas inside the first air storage chamber 27 is discharged to the inside of the second airbag 23 through the first exhaust pipe 15. The second airbag 23 expands and pushes the movable bottom plate 10 to move to the bottom of the fixed bottom plate 9, thereby realizing the connection between the processing table 5 and the collecting cylinder 4 through the connecting channel 6.

[0097] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A polymer 3D printing device capable of continuous laser processing, comprising a device body (1), a driving device (2) disposed inside the device body (1), a laser system (3) disposed on the driving device (2), and characterized in that: Also includes: A processing table (5) is located below the laser system (3), and a collecting cylinder (4) is provided at the bottom end of the interior of the equipment body (1) at a position corresponding to the processing table (5), and a connecting channel (6) is installed at the upper end of the collecting cylinder (4), and the processing table (5) is connected to the collecting cylinder (4) through the connecting channel (6); a blocking assembly, arranged at the connection between the processing table (5) and the connecting channel (6), for blocking the connection between the processing table (5) and the connecting channel (6), the blocking assembly comprising a fixed bottom plate (9) fixedly connected to the lower end of the processing table (5), and a movable bottom plate (10) slidably arranged below the fixed bottom plate (9); a control assembly for controlling the position of a sliding movable bottom plate (10), the control assembly comprising a transverse guide groove (11) provided on the inner wall of the processing table (5), and a guide block (17) being installed on the side wall of the movable bottom plate (10) at a position corresponding to the transverse guide groove (11); The transverse guide groove (11) is provided below the fixed base plate (9), and the movable base plate (10) slides below the fixed base plate (9) through the cooperation of the guide block (17) and the transverse guide groove (11), and the total width of the fixed base plate (9) and the movable base plate (10) is the same as the size of the lower port of the processing table (5); Two groups of vertical guide grooves (12) are formed at one end of the transverse guide groove (11) away from the fixed base plate (9); The guide blocks (17) are provided in two groups, and the spacing between the two groups of guide blocks (17) is the same as the spacing between the two groups of vertical guide grooves (12); A sink groove (22) is provided at the lower end of the transverse guide groove (11), a reset plate (25) is slidably provided inside the sink groove (22), and the reset plate (25) is located on one side of one group of the guide blocks (17); A second air bag (23) is provided between the side wall of the reset plate (25) and the inner side wall of the sink (22), and a second reset spring (24) is provided inside the second air bag (23); A first receiving groove (13) is provided at the lower end of the processing table (5) corresponding to the upper end of the connecting channel (6), a first extrusion block (16) is provided inside the first receiving groove (13), and a first air bag (14) is provided between the upper end of the first extrusion block (16) and the inner top of the first receiving groove (13); A first exhaust pipe (15) is provided between the first airbag (14) and the second airbag (23), and the first airbag (14) is connected to the second airbag (23) through the first exhaust pipe (15); A countersunk hole (18) is provided on the side wall of the transverse guide groove (11) at a position corresponding to the guide block (17), and a first return spring (19) is provided inside the countersunk hole (18); One end of the first return spring (19) away from the countersunk hole (18) is connected to a push plate (20), and the push plate (20) is elastically slidably arranged on a side of the guide block (17) away from the return plate (25) through the first return spring (19), and a limiting groove (54) is provided at the inner top end of the transverse guide groove (11) corresponding to the position of the push plate (20); A lifting assembly is provided inside the processing table (5) for lifting the movable bottom plate (10) upward; The lifting assembly includes a second receiving groove (30) opened at the lower end of the transverse guide groove (11), the second receiving groove (30) is located below the vertical guide groove (12), and a push rod (31) is inserted into the interior of the second receiving groove (30), and a fourth return spring (34) is provided between the lower end of the push rod (31) and the inner bottom end of the second receiving groove (30).

2. The polymer 3D printing device capable of continuous laser processing according to claim 1, characterized in that: A clearance groove (41) is provided at the lower end of the processing table (5) at a position corresponding to the upper end of the connecting channel (6), a limit plate (42) is fixedly provided inside the clearance groove (41), a push rod (43) is provided on the limit plate (42) in a sealing and sliding manner, a third sealing plate (44) is installed on the upper end of the push rod (43), and a sixth return spring (45) is provided between the upper end of the third sealing plate (44) and the inner top end of the clearance groove (41); A third air bag (35) is provided between the lower end of the push rod (31) and the inner bottom end of the second receiving groove (30), and a third exhaust pipe (36) is provided at a position of the side wall of the upper end of the third air bag (35) and the clearance groove (41) corresponding to the limit plate (42), and the third air bag (35) is communicated with the clearance groove (41) through the third exhaust pipe (36).

3. The polymer 3D printing device capable of continuous laser processing according to claim 2, characterized in that: The side wall of the push rod (31) is provided with a second fixing groove (32) and a third fixing groove (33), the second fixing groove (32) is located above the third fixing groove (33), and the side wall of the second receiving groove (30) is provided with a third receiving groove (46) at a position corresponding to the second fixing groove (32), a fixing block (48) is inserted into the interior of the third receiving groove (46), and a seventh return spring (47) is provided between the end of the fixing block (48) and the inner wall of the third receiving groove (46); A fourth receiving groove (51) is provided on the inner wall of the giving way groove (41) at a position above the limiting plate (42), a first trigger block (52) is inserted into the interior of the fourth receiving groove (51), and an eighth return spring (53) is provided between the side wall of the first trigger block (52) and the inner wall of the fourth receiving groove (51), a first through hole (49) is provided between the fourth receiving groove (51) and the third receiving groove (46), a first pull rope (50) is provided inside the first through hole (49), and both ends of the first pull rope (50) are respectively connected to the end of the fixing block (48) and the side wall of the first trigger block (52).

4. The polymer 3D printing device capable of continuous laser processing according to claim 3, characterized in that: A sixth receiving groove (60) is provided on the inner wall of the giving way groove (41) at a position above the limiting plate (42), and the sixth receiving groove (60) is close to the top of the giving way groove (41); A second trigger block (61) is inserted into the interior of the sixth receiving groove (60), and a tenth return spring (62) is provided between the end of the second trigger block (61) and the inner wall of the sixth receiving groove (60); A fifth receiving groove (57) is provided at the upper end of one end of the limiting groove (54) away from the countersunk hole (18), an insert block (58) is provided inside the fifth receiving groove (57), and a ninth return spring (59) is provided between the upper end of the insert block (58) and the inner top end of the fifth receiving groove (57), and a first fixing groove (21) is provided at the upper end of the push plate (20) at a position corresponding to the insert block (58); A second through hole (55) is provided between the sixth receiving groove (60) and the fifth receiving groove (57), a second pull rope (56) is provided inside the second through hole (55), and two ends of the second pull rope (56) are respectively connected to the upper end of the insert block (58) and the side wall of the second trigger block (61).

5. The polymer 3D printing device capable of continuous laser processing according to claim 4, characterized in that: A second air storage chamber (38) is provided inside the processing table (5) at a position corresponding to the third exhaust pipe (36), a fourth exhaust pipe (37) is provided between the second air storage chamber (38) and the third exhaust pipe (36), and a second sealing plate (39) is provided inside the second air storage chamber (38) for sealing and sliding, and a fifth return spring (40) is provided between the upper end of the second sealing plate (39) and the inner top end of the second air storage chamber (38); A first air storage chamber (27) is provided inside the processing table (5) at a position corresponding to the first exhaust pipe (15), a second exhaust pipe (26) is provided between the first air storage chamber (27) and the first exhaust pipe (15), and a first sealing plate (28) is provided inside the first air storage chamber (27) for sealing and sliding, and a third return spring (29) is provided between a side wall of the first sealing plate (28) and an inner side wall of the first air storage chamber (27).

6. The polymer 3D printing device capable of continuous laser processing according to claim 1, characterized in that: A filter screen (7) is provided inside the collecting cylinder (4), and a plurality of groups of stirring rods (8) distributed at intervals are rotatably provided on the upper end of the filter screen (7).

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