A 3D printing device and a method for printing lamps using the same

Abstract

The present invention discloses a 3D printing device, which enters the following operation when different consumables need to be replaced for use: first, the print head of the printing mechanism is moved to the top of the waste box through the first linear module and the second linear module; then the waste remaining in the print head is printed in the waste box through the printing mechanism; finally, the print head is moved to the wire brush through the first linear module and the second linear module, and the print head is driven to move relative to the wire brush in coordination with the lifting movement of the print head, the horizontal movement of the first linear module, and the horizontal movement of the second linear module, so that the wire brush removes the consumables attached to the surface of the print head, and finally has the function of conveniently removing the consumables remaining in the print head and attached to the surface of the print head. A method for printing lamps using a 3D printing device is also disclosed, which has the function of conveniently removing the consumables remaining in the print head and attached to the surface of the print head.

Description

Technical Field

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

[0002] The main purpose of 3D printing equipment is to manufacture three-dimensional objects, including parts and objects made of plastic, cement, metal and other materials. 3D printing technology is also known as "additive manufacturing technology". It builds objects by stacking materials layer by layer, and has the characteristics of high precision and high efficiency.

[0003] The existing 3D printing equipment includes a frame, a processing table arranged on the frame, a first linear module arranged on both sides of the processing table, a second linear module arranged on the sliders of the two first linear modules, a printing mechanism arranged on the slider of the second linear module and having a liftable print head, a reeling rack arranged at one end of the frame, and a plurality of reeling wheels detachably arranged on the reeling rack and wound with consumables, and the consumables on the plurality of reeling wheels are simultaneously input into the printing mechanism for use.

[0004] Usually, multiple consumables share the print head of the printing mechanism. When different consumables are replaced for use, it is necessary to clean the consumables remaining in the print head and the consumables attached to the surface of the print head during the printing process. The existing cleaning method is to clean them manually, which is inconvenient during the cleaning process. Summary of the invention

[0005] The purpose of the present invention is to provide a 3D printing device, which has the function of conveniently removing consumables remaining in a print head and attached to the surface of the print head.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: a 3D printing device, comprising a frame, a processing table arranged on the frame, a first linear module arranged on both sides of the processing table, a second linear module arranged on the sliders of the two first linear modules, a printing mechanism arranged on the slider of the second linear module and having a liftable print head, a reeling frame arranged at one end of the frame, a plurality of reeling wheels detachably arranged on the reeling frame and wound with consumables, the consumables on the plurality of reeling wheels are simultaneously input into the printing mechanism for use, and a waste material storage device near one corner of the processing table is arranged on the frame. A waste box is provided with a wire brush on one side of the waste box close to the processing table; when different consumables need to be replaced for use, the following operation is performed: first, the print head of the printing mechanism is moved to the top of the waste box through the first linear module and the second linear module; then, the waste remaining in the print head is printed in the waste box through the printing mechanism; finally, the print head is moved to the wire brush through the first linear module and the second linear module, and the print head is driven to move relative to the wire brush in coordination with the lifting movement of the print head, the horizontal movement of the first linear module, and the horizontal movement of the second linear module, so that the wire brush removes the consumables attached to the surface of the print head.

[0007] By adopting the above technical solution, the following operations are performed when different consumables need to be replaced for use: first, the print head of the printing mechanism is moved to the top of the waste box through the first linear module and the second linear module; then the waste remaining in the print head is printed in the waste box through the printing mechanism; finally, the print head is moved to the wire brush through the first linear module and the second linear module, and the print head is driven to move relative to the wire brush by coordinating the lifting movement of the print head, the horizontal movement of the first linear module, and the horizontal movement of the second linear module, so that the wire brush removes the consumables attached to the surface of the print head, which ultimately facilitates the removal of the consumables remaining in the print head and attached to the surface of the print head.

[0008] The present invention is further configured as follows: the wire brush comprises a bottom plate rotatably connected to a waste box, and a plurality of wire bundles arranged on the upper surface of the bottom plate; a first elastic connecting component is provided between the wire brush and the waste box so that the upper surface of the bottom plate is horizontal in an initial state; the bottom plate rotates toward a side close to the waste box in the process of overcoming the elastic force of the first elastic connecting component; and a combing sheet is provided at the waste box for screening out consumables remaining on the wire bundles in the process of the bottom plate rotating toward the waste box.

[0009] By adopting the above technical solution, when the wire brush is used to clean the consumables attached to the surface of the print head, the residual consumables will be attached to the wire bundle. At this time, the bottom plate is driven by external force to make the wire brush rotate toward the waste bin, and the residual consumables attached to the wire brush are screened out by the combing sheet. At the same time, when the external force on the bottom plate is released, the first elastic connection component can drive the wire brush to reset, so that the upper surface of the bottom plate of the wire brush is in a horizontal state, which is convenient for cleaning the consumables attached to the surface of the print head of the printing mechanism.

[0010] The present invention is further configured as follows: the first elastic connecting component includes an arc-shaped shaft arranged on the base plate, an arc-shaped sleeve arranged on the inner side of the waste box and for the arc-shaped shaft to pass through, a compression spring sleeved on the arc-shaped shaft and with both ends pressed between the base plate and the arc-shaped sleeve, and a limit block arranged on the waste box and preventing the base plate from excessively rotating in a direction away from the waste box, and the center of the arc-shaped shaft is on the rotation axis of the base plate.

[0011] By adopting the above technical solution, the first elastic connection component includes an arc-shaped shaft, an arc-shaped sleeve, a compression spring and a limit block, so that after the base plate overcomes the elastic force of the compression spring and rotates, after the external force applied to the base plate is released, the base plate can be reset under the reset action of the compression spring, and the limit block is used to prevent the base plate from excessive rotation.

[0012] The present invention is further configured as follows: the unwinding frame includes a supporting vertical rod arranged on the frame, a horizontal rod arranged on the top of the supporting vertical rod, a plurality of mounting seats arranged in an array on the horizontal rod, a mounting shaft arranged on the mounting seat and for the unwinding wheel to be mounted in a horizontal direction, and a plurality of guide seats arranged on the front side of the horizontal rod and having guide holes for consumables to pass through; a supporting frame is arranged between the frame and the horizontal rod, a plurality of heating tubes are arranged on the supporting frame for the consumables to pass through respectively, an electric hot air blower is arranged on the frame, an air supply duct is arranged between the electric hot air blower and the plurality of heating tubes, the hot air in the heating tube is blown from one end close to the horizontal rod to one end close to the frame, and the heating tube extends downwardly in an inclined direction close to the frame.

[0013] By adopting the above technical solution, during the printing process of the 3D printer, if the consumables are damp, it will cause problems such as drawing, bubbles, material shortage, and brittleness, which will directly affect the printing quality. By setting up an electric hot air blower, a heating tube, and an air supply duct, the consumables pass through the heating tube during use, and the consumables are quickly dried by hot air. The hot air can also preheat the consumables, thereby improving the 3D printing efficiency.

[0014] A further setting of the present invention is that: a strip-shaped through groove extending along the length direction is provided at the top of the heating tube, and arc-shaped flexible rubber sheets that are in contact with each other are provided on both sides of the strip-shaped through groove, and the consumable is embedded in the heating tube from the contact position of the two arc-shaped flexible rubber sheets; the air supply pipeline includes a plurality of inclined joints respectively arranged on the side surface of the upper end of the heating tube, an air supply main pipe arranged at the air outlet end of the electric heating fan, and a plurality of air supply branch pipes arranged between the air supply main pipe and the inclined joints.

[0015] By adopting the above technical solution, when drying the consumable through the heating tube, it is necessary to pass the consumable through the heating tube, but the operation of passing the consumable through the heating tube is relatively inconvenient. Therefore, a strip-shaped through groove is provided at the top of the heating tube, and arc-shaped flexible rubber sheets that are in contact with each other are provided on both sides of the strip-shaped through groove, so that the consumable can be conveniently embedded in the heating tube from the contact position of the two arc-shaped flexible rubber sheets.

[0016] A further setting of the present invention is that: a connecting shaft rotatably connected to the support frame through a bearing is provided at the bottom of the upper end of the heating tube, a bracket in a "U" shape is provided at the corresponding lower end of the heating tube on the support frame, and a second elastic connection component that does not affect the left and right rotation of the lower end of the heating tube is provided between the bracket and the lower end of the heating tube.

[0017] By adopting the above technical solution, after the consumable is output, it is connected to the printing mechanism, and the printing mechanism moves back and forth and left and right along with the first linear module and the second linear module. When the printing mechanism moves left and right at a position close to the lower end of the heating tube, it will cause the bending angle of the consumable to be too large, thus affecting the quality of the consumable. At this time, by making the upper end of the heating tube rotatable and the lower end of the heating tube rotatable after being connected through the second elastic connection component, when the heating tube is pulled by the consumable, the heating tube can rotate by an angle to reduce the bending angle of the consumable.

[0018] A further setting of the present invention is that: the second elastic connection component includes a first arc-shaped rod arranged on the left side of the lower end of the heating tube and passing through the left side of the bracket, a second arc-shaped rod arranged on the right side of the lower end of the heating tube and passing through the right side of the bracket, a first spring sleeved on the first arc-shaped rod and with both ends abutted between the bracket and the heating tube, and a second spring sleeved on the second arc-shaped rod and with both ends abutted between the bracket and the heating tube. The centers of the first arc-shaped rod and the second arc-shaped rod are both located on the central axis of the connecting shaft.

[0019] By adopting the above technical solution, by setting the first arc-shaped rod, the second arc-shaped rod, the first spring and the second spring, when the lower end of the heating tube is subjected to the pulling force of the consumable, the lower end of the heating tube can rotate after overcoming the elastic force of the first spring or the second spring, and after the acting force of the consumable is cancelled, under the reset action of the first spring or the second spring, the lower end of the heating tube can be driven to reset.

[0020] The present invention is further configured as follows: a three-way valve is provided at the air inlet end of the electric hot blower, a filter is provided on one of the joints of the three-way valve, a negative pressure pipe is provided between the filter and the waste box, a connecting port for connecting the negative pressure pipe is provided on the waste box, a rotating cover plate covering the connecting port is rotatably connected to the inner side of the waste box, a first linkage component for driving the rotating cover plate to open during the rotation of the bottom plate toward the waste box is provided between the rotating cover plate and the wire brush; a second linkage component for driving the bottom plate to rotate toward the direction close to the waste box is provided between the second linear module and one side of the bottom plate; the connecting port and the bottom plate are respectively located on both sides of the waste box, the upper end of the rotating cover plate is rotatably connected to the upper side of the waste box, and when the bottom plate rotates to the limit toward the waste box, the rotating cover plate rotates to a horizontal state and contacts the side of the combing sheet, and the two ends of the rotating cover plate are respectively close to the two end inner walls of the waste box.

[0021] By adopting the above technical solution, when the second linear module drives the bottom plate to rotate to the limit toward the waste box through the second linkage assembly, the first linkage assembly drives the rotating cover plate to rotate to a horizontal state to contact the side of the combing piece, and the two ends of the rotating cover plate are respectively close to the inner walls of the waste box at both ends, so that a relatively closed negative pressure cavity is formed in the waste box, and the connecting port is opened. During the use of the heating fan, the three-way valve and the negative pressure pipe are connected, and the consumables in the waste box are sucked into the filter for filtration, thereby realizing the function of automatically cleaning the consumables in the waste box.

[0022] The present invention is further configured as follows: the first linkage component includes a first rotating shaft arranged at the rotation position of the base plate and passing through the side of the waste bin, a second rotating shaft arranged at the rotation position of the rotating cover plate and passing through the side of the waste bin, a first pulley arranged on the first rotating shaft, a second pulley arranged on the second rotating shaft, and a linkage belt arranged between the first pulley and the second pulley; the second linkage component includes a driving arm arranged on one side of the base plate and in an inverted "L" shape, and a linkage arm arranged below the second linear module. When the linkage arm of the second linear module moves toward a direction close to the driving arm, the linkage arm maintains a state of acting on the driving arm and drives the base plate to rotate 90 degrees toward the waste bin.

[0023] By adopting the above technical solution, during the rotation of the base plate, the rotating cover plate can be driven to rotate through the first pulley, the second pulley and the linkage belt, thereby realizing the linkage between the two; when the linkage arm of the second linear module moves toward the direction close to the driving arm, the linkage arm maintains the state of acting on the driving arm and drives the base plate to rotate 90 degrees toward the waste box, thereby realizing the linkage between the two.

[0024] The purpose of the present invention is to provide a method for printing a lamp using a 3D printing device, which has the function of conveniently removing consumables remaining in a print head and attached to the surface of the print head.

[0025] The above technical objectives of the present invention are achieved through the following technical solutions: A method for printing lamps with a 3D printing device, comprising the following printing steps: (S1) first preparing for 3D printing: embedding the consumables on the unwinding wheel into the heating tube from between two flexible rubber sheets, starting the electric hot air blower to transport hot air into the heating tube to dry the consumables, and installing the dried consumables on the printing mechanism; (S2) performing 3D printing of the lamp: when different consumables need to be replaced for use during the printing process, first move the print head of the printing mechanism to the top of the waste box through the first linear module and the second linear module; then print the waste remaining in the print head into the waste box through the printing mechanism; finally move the print head to the steel wire through the first linear module and the second linear module. At the brush position, the print head is driven to move relative to the wire brush in coordination with the lifting movement of the print head, the horizontal movement of the first linear module, and the horizontal movement of the second linear module, so that the wire brush removes the consumables attached to the surface of the print head; (S3) Cleaning of the waste box: The linkage arm of the second linear module moves toward the direction close to the driving arm, driving the bottom plate to rotate 90 degrees toward the direction close to the waste box. In this process, the residue on the wire brush is screened, and in this process, the rotating cover plate is rotated to a horizontal state through the first linkage assembly to contact the side of the combing piece, and the two ends of the rotating cover plate are respectively close to the inner walls of the two ends of the waste box. At this time, the connection port is opened. During the use of the heating fan, the three-way valve and the negative pressure pipe are connected, and the consumables in the waste box are sucked into the filter for filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of Example 1;

[0027] Figure 2 It is a schematic diagram of the local structure at the unwinding frame in Example 1;

[0028] Figure 3 is a schematic structural diagram of Example 2;

[0029] Figure 4 It is a partial structure push diagram of Example 2;

[0030] Figure 5 The structure of the waste box in Example 2 is shown in FIG. Figure 1 ;

[0031] Figure 6 The structure of the waste box in Example 2 is shown in FIG. Figure 2 ;

[0032] Figure 7is a cross-sectional view of the structure located at the waste bin in Example 2;

[0033] Figure 8 It is a schematic diagram of the local structure of the heating tube in Example 2.

[0034] Figure numerals: 1, frame; 2, processing table; 3, first linear module; 4, second linear module; 5, printing mechanism; 51, print head; 6, unwinding frame; 61, supporting vertical rod; 62, horizontal rod; 63, mounting seat; 64, mounting shaft; 65, guide seat; 7, unwinding wheel; 71, consumables; 8, waste box; 81, wire brush; 811, bottom plate; 812, wire bundle; 82, first elastic connection component; 821, arc shaft; 822, arc sleeve; 823, compression spring; 824, limit block; 83, combing piece; 84, connection port; 85, rotating cover plate; 86, first linkage component; 861, first rotating shaft; 862, second Rotating shaft; 863, first pulley; 864, second pulley; 865, linkage belt; 87, second linkage assembly; 871, driving arm; 872, linkage arm; 91, support frame; 92, heating tube; 921, strip through groove; 922, arc-shaped flexible rubber sheet; 923, connecting shaft; 93, electric heating fan; 94, air supply pipeline; 941, inclined joint; 942, air supply main pipe; 943, air supply branch pipe; 95, bracket; 96, second elastic connecting assembly; 961, first arc rod; 962, second arc rod; 963, first spring; 964, second spring; 97, three-way valve; 98, filter; 99, negative pressure pipe. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0036] Embodiment 1: A 3D printing device, such as Figure 1 As shown, it includes a frame 1, a processing table 2 arranged on the frame 1, a first linear module 3 arranged on both sides of the processing table 2, a second linear module 4 arranged on the sliders of the two first linear modules 3, a printing mechanism 5 arranged on the slider of the second linear module 4 and having a liftable print head 51, an unwinding rack 6 arranged at one end of the frame 1, and a plurality of unwinding wheels 7 detachably arranged on the unwinding rack 6 and wound with consumables 71. The consumables 71 on the plurality of unwinding wheels 7 are simultaneously input into the printing mechanism 5 for use.

[0037] like Figure 1As shown, a waste box 8 is provided on the frame 1 near one corner of the processing table 2, and a wire brush 81 is provided on one side of the waste box 8 near the processing table 2. When different consumables 71 need to be replaced for use, the following operations are performed: first, the print head 51 of the printing mechanism 5 is moved to the top of the waste box 8 through the first linear module 3 and the second linear module 4; then, the waste remaining in the print head 51 is printed in the waste box 8 through the printing mechanism 5; finally, the print head 51 is moved to the wire brush 81 through the first linear module 3 and the second linear module 4, and the print head 51 is driven to move relative to the wire brush 81 in coordination with the lifting movement of the print head 51, the horizontal movement of the first linear module 3, and the horizontal movement of the second linear module 4, so that the wire brush 81 removes the consumables 71 attached to the surface of the print head 51.

[0038] like Figure 1 and Figure 2 As shown, the unwinding frame 6 includes a supporting vertical rod 61 arranged on the frame 1, a horizontal rod 62 arranged on the top of the supporting vertical rod 61, a plurality of mounting seats 63 arranged in an array on the horizontal rod 62, a mounting shaft 64 arranged on the mounting seat 63 and for the unwinding wheel 7 to be installed in a horizontal direction, and a plurality of guide seats 65 arranged on the front side of the horizontal rod 62 and having guide holes for the consumables 71 to pass through.

[0039] Embodiment 2: A 3D printer, which is different from Embodiment 1 in that: Figures 3 to 5 As shown, the wire brush 81 includes a bottom plate 811 rotatably connected to the waste bin 8, and a plurality of wire bundles 812 arranged on the upper surface of the bottom plate 811; a first elastic connection component 82 is arranged between the wire brush 81 and the waste bin 8 so that the upper surface of the bottom plate 811 is horizontal in an initial state; the bottom plate 811 rotates toward the side close to the waste bin 8 in the process of overcoming the elastic force of the first elastic connection component 82, and a combing piece 83 is arranged at the waste bin 8 for screening out the consumables 71 remaining on the wire bundles 812 in the process of the bottom plate 811 rotating toward the waste bin 8.

[0040] like Figure 5 and Figure 6 As shown, the first elastic connection component 82 includes an arc-shaped shaft 821 arranged on the base plate 811, an arc-shaped sleeve 822 arranged on the inner side of the waste box 8 and for the arc-shaped shaft 821 to pass through, a compression spring 823 sleeved on the arc-shaped shaft 821 and with both ends pressed between the base plate 811 and the arc-shaped sleeve 822, and a limit block 824 arranged on the waste box 8 and preventing the base plate 811 from excessively rotating in a direction away from the waste box 8. The center of the arc-shaped shaft 821 is on the rotation axis of the base plate 811.

[0041] like Figure 3 , Figure 4 and Figure 8As shown in the figure, a support frame 91 is provided between the frame 1 and the cross bar 62. A plurality of heating tubes 92 through which the consumables 71 pass are provided on the support frame 91. An electric hot air blower 93 is provided on the frame 1. An air supply pipeline 94 is provided between the electric hot air blower 93 and the plurality of heating tubes 92. The hot air in the heating tube 92 is blown from the end close to the cross bar 62 to the end close to the frame 1, and the heating tube 92 extends obliquely downward in the direction close to the frame 1.

[0042] As Figure 3 , Figure 4 and Figure 8 shown in the figure, a strip-shaped through groove 921 extending along the length direction is provided at the top of the heating tube 92. Arc-shaped flexible rubber sheets 922 that are in contact with each other are provided on both sides of the strip-shaped through groove 921. The consumables 71 are embedded in the heating tube 92 from the contact position of the two arc-shaped flexible rubber sheets 922. The air supply pipeline 94 includes a plurality of inclined joints 941 respectively provided on the upper side surface of the heating tube 92, an air supply main pipe 942 provided at the air outlet end of the electric hot air blower 93, and a plurality of air supply branch pipes 943 provided between the air supply main pipe 942 and the inclined joints 941.

[0043] As Figure 2 and Figure 8 shown in the figure, a connecting shaft 923 rotatably connected to the support frame 91 through a bearing is provided at the bottom of the upper end of the heating tube 92. A bracket 95 in a "U" shape is provided at the position corresponding to the lower end of the heating tube 92 on the support frame 91. A second elastic connection assembly 96 that does not affect the left and right rotation of the lower end of the heating tube 92 is provided between the bracket 95 and the lower end of the heating tube 92. The second elastic connection assembly 96 includes a first arc-shaped rod 961 provided on the left side of the lower end of the heating tube 92 and passing through the left side of the bracket 95, a second arc-shaped rod 962 provided on the right side of the lower end of the heating tube 92 and passing through the right side of the bracket 95, a first spring 963 sleeved on the first arc-shaped rod 961 and having both ends abutted between the bracket 95 and the heating tube 92, a second spring 964 sleeved on the second arc-shaped rod 962 and having both ends abutted between the bracket 95 and the heating tube 92. The centers of the first arc-shaped rod 961 and the second arc-shaped rod 962 are both located on the central axis of the connecting shaft 923.

[0044] As Figures 3 to 5As shown, in addition, a three-way valve 97 is provided at the air inlet end of the electric hot air blower 93, a filter 98 is provided on one of the joints of the three-way valve 97, a negative pressure pipe 99 is provided between the filter 98 and the waste box 8, a connection port 84 connected to the negative pressure pipe 99 is provided on the waste box 8, a rotating cover plate 85 covering the connection port 84 is rotatably connected to the inner side of the waste box 8, and a first linkage is provided between the rotating cover plate 85 and the wire brush 81 to drive the rotating cover plate 85 to open during the rotation of the bottom plate 811 toward the waste box 8. Component 86; a second linkage component 87 is provided between the second linear module 4 and one side of the base plate 811 to drive the base plate 811 to rotate toward the direction close to the waste bin 8; the connecting port 84 and the base plate 811 are respectively located on both sides of the waste bin 8, and the upper end of the rotating cover plate 85 is rotatably connected to the upper side of the waste bin 8. When the base plate 811 is rotated to the limit toward the waste bin 8, the rotating cover plate 85 is rotated to a horizontal state and abuts against the side of the combing sheet 83, and the two ends of the rotating cover plate 85 are respectively close to the inner walls of the two ends of the waste bin 8.

[0045] like Figures 3 to 5 As shown, the first linkage assembly 86 includes a first rotating shaft 861 arranged at the rotation point of the base plate 811 and passing through the side of the waste bin 8, a second rotating shaft 862 arranged at the rotation point of the rotating cover plate 85 and passing through the side of the waste bin 8, a first pulley 863 arranged on the first rotating shaft 861, a second pulley 864 arranged on the second rotating shaft 862, and a linkage belt 865 arranged between the first pulley 863 and the second pulley 864; the second linkage assembly 87 includes a driving arm 871 arranged on one side of the base plate 811 and in an inverted "L" shape, and a linkage arm 872 arranged below the second linear module 4. When the linkage arm 872 of the second linear module 4 moves toward the direction close to the driving arm 871, the linkage arm 872 maintains the state of acting on the driving arm 871 and drives the base plate 811 to rotate 90 degrees toward the direction of the waste bin 8.

[0046] Implementation effect: When the wire brush 81 removes the consumables 71 attached to the surface of the print head 51, the remaining consumables 71 will adhere to the wire bundle 812. At this time, the bottom plate 811 is driven by external force to rotate the wire brush 81 toward the waste bin 8, and the remaining consumables 71 attached to the wire brush 81 are screened out by the combing sheet 83. At the same time, when the external force on the bottom plate 811 is released, the first elastic connection component 82 can drive the wire brush 81 to reset, so that the upper surface of the bottom plate 811 of the wire brush 81 is in a horizontal state, which is convenient for removing the consumables 71 attached to the surface of the print head 51 of the printing mechanism 5. The first elastic connection component 82 includes an arc-shaped shaft 821, an arc-shaped sleeve 822, a compression spring 823 and a limit block 824, so that after the base plate 811 rotates to overcome the elastic force of the compression spring 823, after the external force applied to the base plate 811 is released, the base plate 811 can be reset under the reset action of the compression spring 823, and the limit block 824 is used to prevent the base plate 811 from excessive rotation.

[0047] During the printing process of the 3D printer, if the consumables 71 are damp, problems such as drawing, bubbles, lack of material, and brittleness will occur during the printing process, directly affecting the printing quality. By setting the electric hot air blower 93, the heating tube 92, and the air supply pipeline 94, the consumables 71 pass through the heating tube 92 during use, and the consumables 71 are quickly dried by hot air, and the hot air can preheat the consumables 71, thereby improving the 3D printing efficiency. When the consumables 71 are dried by the heating tube 92, the consumables 71 need to pass through the heating tube 92, but the operation of passing the consumables 71 through the heating tube 92 is relatively inconvenient. Therefore, by setting a strip through groove 921 at the top of the heating tube 92, arc-shaped flexible rubber sheets 922 that conflict with each other are set on both sides of the strip through groove 921, so that the consumables 71 can be conveniently embedded in the heating tube 92 from the conflicting point of the two arc-shaped flexible rubber sheets 922. After the consumable 71 is output, it is connected to the printing mechanism 5. The printing mechanism 5 moves forward, backward, left and right along with the first linear module 3 and the second linear module 4. When the printing mechanism 5 moves left and right near the lower end of the heating tube 92, the bending angle of the consumable 71 will be too large, thereby affecting the quality of the consumable 71. At this time, the upper end of the heating tube 92 is rotatable, and the lower end of the heating tube 92 is rotatable after being connected through the second elastic connection component 96. Therefore, when the heating tube 92 is pulled by the consumable 71, the heating tube 92 can rotate an angle to reduce the bending angle of the consumable 71.

[0048] When the second linear module 4 drives the bottom plate 811 to rotate to the limit toward the waste bin 8 through the second linkage assembly 87, the first linkage assembly 86 drives the rotating cover 85 to rotate to a horizontal state to contact the side of the combing piece 83, and the two ends of the rotating cover 85 are respectively close to the inner walls of the waste bin 8, so that a relatively closed negative pressure cavity is formed in the waste bin 8, and the connecting port 84 is opened. During the use of the heating fan, the three-way valve 97 and the negative pressure pipe 99 are connected, and the consumables 71 in the waste bin 8 are sucked into the filter 98 for filtration, thereby realizing the function of automatically cleaning the consumables 71 in the waste bin 8.

[0049] During the rotation of the base plate 811, the rotating cover plate 85 can be driven to rotate through the first pulley 863, the second pulley 864 and the linkage belt 865, thereby realizing the linkage between the two; when the linkage arm 872 of the second linear module 4 moves toward the direction close to the driving arm 871, the linkage arm 872 maintains the state of acting on the driving arm 871 and drives the base plate 811 to rotate 90 degrees toward the waste box 8, thereby realizing the linkage between the two.

[0050] Embodiment 3: A method for printing lamps using a 3D printing device, comprising the following printing steps: (S1) first preparing for 3D printing: inserting the consumable 71 on the unwinding wheel 7 into the heating tube 92 from between two flexible rubber sheets, starting the electric hot air blower 93 to transport hot air into the heating tube 92 to dry the consumable 71, and installing the dried consumable 71 on the printing mechanism 5; (S2) performing 3D printing of the lamp: when different consumables 71 need to be replaced for use during the printing process, first move the print head 51 of the printing mechanism 5 to the top of the waste bin 8 through the first linear module 3 and the second linear module 4; then print the waste remaining in the print head 51 into the waste bin 8 through the printing mechanism 5; finally, move the print head 51 to the wire brush 81 through the first linear module 3 and the second linear module 4, and coordinate the lifting and lowering movement of the print head 51, the first The horizontal movement of the linear module 3 and the horizontal movement of the second linear module 4 drive the print head 51 to move relative to the wire brush 81, so that the wire brush 81 removes the consumables 71 attached to the surface of the print head 51; (S3) Cleaning of the waste bin 8: The linkage arm 872 of the second linear module 4 moves toward the direction close to the driving arm 871, driving the bottom plate 811 to rotate 90 degrees toward the direction close to the waste bin 8. In this process, the residue on the wire brush 81 is screened, and in this process, the first linkage assembly 86 is used to rotate the rotating cover plate 85 to a horizontal state to contact the side of the combing sheet 83, and the two ends of the rotating cover plate 85 are respectively close to the inner walls of the two ends of the waste bin 8. At this time, the connecting port 84 is opened. During the use of the heating fan, the three-way valve 97 and the negative pressure pipe 99 are connected, and the consumables 71 in the waste bin 8 are sucked into the filter 98 for filtration.

[0051] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A 3D printing device, comprising a frame (1), a processing table (2) arranged on the frame (1), a first linear module (3) arranged on both sides of the processing table (2), a second linear module (4) arranged on the sliders of the two first linear modules (3), a printing mechanism (5) arranged on the sliders of the second linear module (4) and having a liftable print head (51), a reeling frame (6) arranged at one end of the frame (1), and a plurality of reeling wheels (7) detachably arranged on the reeling frame (6) and wound with consumables (71), wherein the consumables (71) on the plurality of reeling wheels (7) are simultaneously input into the printing mechanism (5) for use, characterized in that: The frame (1) is provided with a waste box (8) near one corner of the processing table (2), and a wire brush (81) is provided on one side of the waste box (8) near the processing table (2); When it is necessary to replace different consumables (71) for use, the following operation is performed: first, the print head (51) of the printing mechanism (5) is moved to the top of the waste bin (8) by means of the first linear module (3) and the second linear module (4); then, the waste remaining in the print head (51) is printed into the waste bin (8) by means of the printing mechanism (5); finally, the print head (51) is moved to the position of the wire brush (81) by means of the first linear module (3) and the second linear module (4), and the print head (51) is driven to move relative to the wire brush (81) in coordination with the lifting movement of the print head (51), the horizontal movement of the first linear module (3), and the horizontal movement of the second linear module (4), so that the wire brush (81) removes the consumables (71) attached to the surface of the print head (51); The wire brush (81) comprises a bottom plate (811) rotatably connected to a waste bin (8), and a plurality of wire bundles (812) arranged on the upper surface of the bottom plate (811); a first elastic connection component (82) is arranged between the wire brush (81) and the waste bin (8) so that the upper surface of the bottom plate (811) is horizontal in an initial state; the bottom plate (811) rotates toward a side close to the waste bin (8) in a process of overcoming the elastic force of the first elastic connection component (82); and a combing piece (83) is arranged at the waste bin (8) for screening out the consumables (71) remaining on the wire bundles (812) in a process of the bottom plate (811) rotating toward the waste bin (8); The unwinding frame (6) comprises a supporting vertical rod (61) arranged on the frame (1), a horizontal rod (62) arranged on the top of the supporting vertical rod (61), a plurality of mounting seats (63) arranged in an array on the horizontal rod (62), a mounting shaft (64) arranged on the mounting seat (63) and for mounting the unwinding wheel (7) in a horizontal direction, and a plurality of guide seats (65) arranged on the front side of the horizontal rod (62) and having guide holes for the consumables (71) to pass through; between the frame (1) and the horizontal rod (62), A support frame (91) is provided, and a plurality of heating tubes (92) are provided on the support frame (91) for the consumables (71) to pass through respectively. An electric hot air blower (93) is provided on the frame (1), and an air supply pipeline (94) is provided between the electric hot air blower (93) and the plurality of heating tubes (92). Hot air in the heating tube (92) is blown from an end close to the cross bar (62) to an end close to the frame (1), and the heating tube (92) extends downwardly in an inclined manner toward a direction close to the frame (1); The air inlet end of the electric hot air blower (93) is provided with a three-way valve (97), one of the joints of the three-way valve (97) is provided with a filter (98), a negative pressure pipe (99) is provided between the filter (98) and the waste box (8), a connection port (84) connected to the negative pressure pipe (99) is provided on the waste box (8), a rotating cover plate (85) covering the connection port (84) is rotatably connected to the inner side of the waste box (8), and a first linkage component (86) is provided between the rotating cover plate (85) and the wire brush (81) to drive the rotating cover plate (85) to open during the rotation of the bottom plate (811) toward the waste box (8); and a linkage component (86) is provided between the second linear module (4) and one side of the bottom plate (811) to drive the bottom plate (811) to open. (811) a second linkage assembly (87) that rotates in a direction close to the waste box (8); the connection port (84) and the bottom plate (811) are respectively located on both sides of the waste box (8); the upper end of the rotating cover plate (85) is rotatably connected to the upper side of the waste box (8); when the bottom plate (811) rotates to the limit of rotation close to the waste box (8), the rotating cover plate (85) rotates to a horizontal state and contacts the side of the combing sheet (83), and the two ends of the rotating cover plate (85) are respectively close to the inner walls of the waste box (8); at this time, the connection port (84) is opened, and during the use of the heating fan, the three-way valve (97) and the negative pressure pipe (99) are connected, and the consumables (71) in the waste box (8) are sucked into the filter (98) for filtration; The first linkage assembly (86) comprises a first rotating shaft (861) arranged at the rotation point of the base plate (811) and passing through the side of the waste box (8), a second rotating shaft (862) arranged at the rotation point of the rotating cover plate (85) and passing through the side of the waste box (8), a first belt pulley (863) arranged on the first rotating shaft (861), a second belt pulley (864) arranged on the second rotating shaft (862), and a linkage belt (865) arranged between the first belt pulley (863) and the second belt pulley (864); the second linkage assembly (87) comprises a driving arm (871) arranged on one side of the base plate (811) and in an inverted "L" shape, and a linkage arm (872) arranged below the second linear module (4); when the linkage arm (872) of the second linear module (4) moves in a direction close to the driving arm (871), the linkage arm (872) maintains a state of acting on the driving arm (871) and drives the base plate (811) to rotate 90 degrees in the direction of the waste box (8).

2. A 3D printing device according to claim 1, characterized in that: The first elastic connection component (82) includes an arc-shaped shaft (821) arranged on the bottom plate (811), an arc-shaped sleeve (822) arranged inside the waste bin (8) and through which the arc-shaped shaft (821) passes, a compression spring (823) sleeved on the arc-shaped shaft (821) and with both ends abutted between the bottom plate (811) and the arc-shaped sleeve (822), and a limit block (824) arranged on the waste bin (8) to prevent the bottom plate (811) from rotating excessively away from the waste bin (8). The center of the arc-shaped shaft (821) is located on the rotation axis of the bottom plate (811).

3. A 3D printing device according to claim 2, characterized in that: A strip-shaped through groove (921) extending along its length direction is arranged at the top of the heating pipe (92). Arc-shaped flexible rubber sheets (922) that are in contact with each other are arranged on both sides of the strip-shaped through groove (921). The consumable material (71) is embedded in the heating pipe (92) from the contact position of the two arc-shaped flexible rubber sheets (922). The air supply pipeline (94) includes a plurality of inclined joints (941) respectively arranged on the upper side surface of the heating pipe (92), an air supply main pipe (942) arranged at the air outlet end of the electric hot air blower (93), and a plurality of air supply branch pipes (943) arranged between the air supply main pipe (942) and the inclined joints (941).

4. A 3D printing device according to claim 3, characterized in that: A connecting shaft (923) rotatably connected to the support frame (91) through a bearing is arranged at the bottom of the upper end of the heating pipe (92). A bracket (95) in a "U" shape is arranged at the position corresponding to the lower end of the heating pipe (92) on the support frame (91). A second elastic connection component (96) that does not affect the left and right rotation of the lower end of the heating pipe (92) is arranged between the bracket (95) and the lower end of the heating pipe (92).

5. A 3D printing device according to claim 4, characterized in that: The second elastic connection component (96) includes a first arc-shaped rod (961) arranged on the left side of the lower end of the heating pipe (92) and passing through the left side of the bracket (95), a second arc-shaped rod (962) arranged on the right side of the lower end of the heating pipe (92) and passing through the right side of the bracket (95), a first spring (963) sleeved on the first arc-shaped rod (961) and with both ends abutted between the bracket (95) and the heating pipe (92), and a second spring (964) sleeved on the second arc-shaped rod (962) and with both ends abutted between the bracket (95) and the heating pipe (92). The centers of the first arc-shaped rod (961) and the second arc-shaped rod (962) are both located on the central axis of the connecting shaft (923).

6. A method for printing a lamp using the 3D printing device according to claim 5, characterized in that: Including the following printing steps: (S1) First, prepare for 3D printing: Embed the consumable material (71) on the unwinding wheel (7) into the heating pipe (92) from between the two flexible rubber sheets. Start the electric hot air blower (93) to send hot air into the heating pipe (92) to dry the consumable material (71). After drying, install the consumable material (71) on the printing mechanism (5). (S2) 3D printing of the lamp: when different consumables (71) need to be replaced for use during the printing process, the print head (51) of the printing mechanism (5) is first moved to the top of the waste bin (8) by means of the first linear module (3) and the second linear module (4); then the waste remaining in the print head (51) is printed into the waste bin (8) by means of the printing mechanism (5); finally, the print head (51) is moved to the position of the wire brush (81) by means of the first linear module (3) and the second linear module (4), and the print head (51) is driven to move relative to the wire brush (81) in coordination with the lifting movement of the print head (51), the horizontal movement of the first linear module (3), and the horizontal movement of the second linear module (4), so that the wire brush (81) removes the consumables (71) attached to the surface of the print head (51); (S3) Cleaning of the waste bin (8): The linkage arm (872) of the second linear module (4) moves in a direction close to the driving arm (871), driving the bottom plate (811) to rotate 90 degrees in a direction close to the waste bin (8). During this process, the residue on the wire brush (81) is screened, and during this process, the first linkage assembly (86) causes the rotating cover plate (85) to rotate to a horizontal state and abut against the side of the combing sheet (83), and the two ends of the rotating cover plate (85) are respectively close to the inner walls of the two ends of the waste bin (8). At this time, the connection port (84) is opened, and during the use of the heating fan, the three-way valve (97) and the negative pressure pipe (99) are connected, and the consumables (71) in the waste bin (8) are sucked into the filter (98) for filtration.

Images