A laser 3D printer

Abstract

The present invention relates to the technical field of laser printing, and particularly relates to a laser 3D printer, which includes a support module. A housing is fixedly connected to the top of the support module. A drum mechanism and a laser mechanism are arranged inside the housing. The support module includes a box body. The top surface of the box body is fixedly connected to the bottom surface of the housing. A top plate is fixedly connected to the top of the inner side surface of the box body. A retaining frame is arranged on the bottom surface of the top plate. In the present invention, the adjusting block is rotatably connected to the connecting seat. After the part printing is completed, the adjusting block can be rotated by the bi-axial motor, so that the connecting plate rotates. In this way, the powder and the part on the support plate can be exposed, and the part can be taken out of the retaining frame from the top of the connecting plate. In this way, it is not necessary to move the part and the laser structure upward, and it is not necessary to provide a large space on the top of the support plate to accommodate the movement of the raised part and the laser structure, which is beneficial to reducing the height of the printer.

Description

Technical Field

[0001] The present invention relates to the technical field of laser printing, and particularly relates to a laser 3D printer. Background Art

[0002] Laser 3D printing is to sinter powder materials by laser and gradually additively manufacture parts. During the 3D printing process, the roller of the printer will apply a layer of powder material on the platform and scrape the surface of the powder flat with a scraper. Then, according to the shape of the material, the laser emitted by the laser structure will sinter part of the powder. Then, the platform will be lowered through the lifting structure. Then, a new powder layer will be applied by the roller, and part of the powder will be sintered again by the laser, and the sintered part will be fused with the previous sintered part. Repeat the above process to gradually print out the part. Laser 3D printing has the advantages of high printing quality and fast printing speed, and the printed object is not restricted by supports, and printing can be performed on objects of any shape.

[0003] When the existing laser 3D printer is in use, in order to avoid displacement of the powder during printing and causing printing deviation, a retaining frame is generally provided on the side of the printing platform. During printing, the printing platform moves downward along the retaining frame, and the powder on the printing platform is blocked by the retaining frame. In this way, after printing is completed, only the printing platform can be raised to move the part on the top of the printing platform out of the retaining frame, and then the part can be removed from the printing platform. In this way, in order to avoid the part touching the laser structure, the laser structure may also need to be moved upward synchronously, so that a relatively large space needs to be provided on the top of the printing platform to accommodate the movement of the part and the laser structure. Summary of the Invention

[0004] In order to overcome the above technical problems, the purpose of the present invention is to provide a laser 3D printer. The adjusting block is rotatably connected to the connecting seat. After the part is printed, the adjusting block can be rotated by the double-axis motor, so that the connecting plate rotates. In this way, the powder and the part on the support plate can be exposed, and the part can be taken out of the retaining frame from the top of the connecting plate. In this way, it is not necessary to move the part and the laser structure upward, and it is not necessary to provide a relatively large space on the top of the support plate to accommodate the movement of the raised part and the laser structure, which is beneficial to reducing the height of the printer.

[0005] The purpose of the present invention can be realized by the following technical solutions:

[0006] A laser 3D printer, comprising a support module, a housing is fixedly connected to the top of the support module, a roller mechanism and a laser mechanism are arranged inside the housing, the support module includes a box body, the top surface of the box body is fixedly connected to the bottom surface of the housing, a top plate is fixedly connected to the top of the inner side surface of the box body, a retaining frame is arranged on the bottom surface of the top plate, a support plate slidably connected to the inner side surface of the retaining frame is slidably connected to the inner side surface of the top plate, a first hydraulic rod for lifting the support plate is fixedly connected to the inner side surface of the box body, a connecting plate in contact with the side surface of the top plate is arranged on one side of the inner side surface of the retaining frame, and the top surface of the connecting plate is in contact with the bottom surface of the top plate, a connecting seat is fixedly connected to the bottom surface of the support plate on one side of the connecting plate, two adjusting blocks rotatably connected to the connecting seat are slidably connected to the top of the side surface of the connecting plate, a dual-axis motor is arranged on the inner side surface of the connecting seat, both output ends of the dual-axis motor are drivingly connected to adjusting rods rotatably connected to the inner side surface of the connecting seat, and opposite surfaces of the two adjusting blocks are fixedly connected to one end of the adjacent adjusting rod.

[0007] A layer of powder is laid on the top plate and the support plate by the roller mechanism, and then part of the powder on the support plate is sintered by the laser of the laser mechanism according to the shape of the part. After sintering is completed, the first hydraulic rod drives the support plate to move downward along the inside of the retaining frame. Then, a new layer of powder is laid on the support plate, and part of the powder is sintered again by the laser mechanism, and the newly sintered powder is fused with the previously sintered structure. Repeat the above process until the part is formed. A scraper can be arranged on the roller mechanism. In this way, when the roller mechanism passes over the top plate, the scraper can scrape off the powder falling on the top plate, preventing the powder on the top plate from accumulating to a high height. At the same time, the scraper can scrape the powder on the support plate flat, which is beneficial to subsequent laser sintering. The retaining frame and the connecting plate can block the powder on the support plate to prevent the powder from shifting. After the part is printed, the dual-axis motor can be used to rotate the adjusting rod, and the adjusting rod can drive the adjusting block to rotate, so that the connecting plate rotates to the bottom of the support plate. In this way, the powder and the part on the support plate can be exposed, facilitating the removal of the part on the top of the support plate. When removing the part, it is not necessary to lift the part again, so it is not necessary to move the laser structure upward. In this way, the space on the top of the top plate does not need to be set large to accommodate the lifted part and the movement of the laser structure, which is beneficial to reducing the height of the printer.

[0008] Furthermore: a rotating rod is fixedly connected to the top of the side surface of the retaining frame away from the connecting plate, a fixed seat rotatably connected to the side surface of the rotating rod is fixedly connected to the bottom surface of the top plate, a second hydraulic rod is fixedly connected to the inner side surface of the box body, the output end of the second hydraulic rod is drivingly connected to a support frame in contact with the bottom surface of the retaining frame, and the bottom of the connecting plate is in contact with the top surface of the support frame. The retaining frame can rotate downward with the fixed seat as the center. After the connecting plate receives the bottom of the support plate, the second hydraulic rod can be used to move the support frame downward. At this time, the retaining frame can rotate downward to tilt the support plate, so that the powder and the part on the support plate can slide downward obliquely, facilitating the removal of the part from the retaining frame.

[0009] Furthermore, a sliding seat is slidably connected to the bottom surface of the support plate. A positioning rod fixedly connected to the bottom surface of the support plate is slidably connected to the inner side surface of the sliding seat. The output end of the first hydraulic rod is drivingly connected to a connecting block rotatably connected to the inner side surface of the sliding seat. The first hydraulic rod can drive the connecting block to move upward or downward. The connecting block can drive the sliding seat to move. The sliding seat can drive the support plate to move upward or downward through the positioning rod. The sliding seat can slide along the positioning rod at the bottom of the support plate, and the sliding seat can rotate relative to the connecting block. In this way, after the support frame moves downward, the blocking frame can smoothly drive the support plate to rotate downward, making the support plate inclined, and the support plate can be driven to move downward by the first hydraulic rod, so that the support plate is smoothly inclined.

[0010] Furthermore, a first limiting rod is fixedly connected to the bottom of the side surface of the adjusting block. A second limiting rod is slidably connected to the side surface of the first limiting rod. The bottom of the side surface of the second limiting rod is slidably connected to a fixed frame, and the side surface of the fixed frame is fixedly connected to the side surface of the connecting plate. A limiting groove is formed in the side surface of the first limiting rod. A limiting block slidably connected to the inner side surface of the limiting groove is fixedly connected to the top of the side surface of the second limiting rod. Positioning blocks slidably connected to the inner side surface of the second limiting rod are fixedly connected to both inner side surfaces of the fixed frame. The first limiting rod and the second limiting rod can be connected to each other through the limiting block, and the second limiting rod and the limiting block can slide along the first limiting rod. The positioning blocks can limit the moving direction of the second limiting rod relative to the fixed frame, so that the second limiting rod is connected to the fixed frame. In this way, the moving direction of the adjusting block relative to the connecting plate can be limited, and the adjusting block can move upward or downward along the connecting plate. In this way, there is no need to form a groove for limiting the sliding of the adjusting block on the connecting plate, etc., so that the side surface of the connecting plate can be kept flat, avoiding the displacement of powder between the blocking frame and the connecting plate. When the support plate moves downward, since the support frame supports the bottom of the connecting plate, the support plate will drive the adjusting block to move downward along the side surface of the connecting plate through the connecting seat, causing the first limiting rod and the second limiting rod to move. The first limiting rod, the second limiting rod and the adjusting block are restricted on the connecting plate through the fixed frame. When the adjusting block rotates, the adjusting block can drive the first limiting rod and the second limiting rod to rotate, and the second limiting rod can drive the connecting plate to rotate through the fixed frame, so that the connecting plate rotates to the bottom of the support plate.

[0011] Furthermore, a fixing groove is provided on the inner side of the fixing frame, and a wave block is slidably connected to the inner side of the fixing groove. The side of the wave block is fixedly connected to a spring fixedly connected to the inner side of the fixing groove. The inner side of the limit rod 2 is fixedly connected to the wave rod in contact with the side of the wave block. Since the positioning block can limit the moving direction of the limit rod 2 relative to the fixed frame, under the action of the spring, the wave block can be pressed against the wave rod, thereby preventing the wave rod from moving relative to the fixed frame at will. When the adjusting block moves downward, the limit rod 1 will first move downward along the limit rod 2. After the top end of the limit rod 2 contacts the bottom of the adjusting block, the adjusting block continues to move downward and can directly press the limit rod 2 to move downward. At the same time, the positioning block can prevent the limit rod 2 from disengaging from the fixed frame. In this way, it can be prevented that the limit rod 1 and the limit rod 2 extend downward for a long length, affecting the rotation of the connecting plate.

[0012] Furthermore, two baffles are fixedly connected to the bottom surface of the top plate, and the opposing surfaces of the two baffles are in contact with the side surfaces of the baffle frame. The opposing surfaces of the two baffles are located on one side of the connecting plate and are fixedly connected with baffle rods. The baffles can block the two sides of the baffle frame to prevent them from scattering randomly. When the connecting plate rotates to the bottom of the supporting plate, if the length of the connecting plate located at the upper part of the supporting plate is longer, the connecting plate will contact the baffle rod. In this way, under the action of the baffle rod, the connecting plate can move toward the bottom of the supporting plate while rotating downward, preventing the connecting plate from extending out of the box.

[0013] Furthermore, four supporting columns are fixedly connected to the bottom surface of the box body, and a collecting module is provided on one side of the opening of the box body, and the collecting module includes a collecting shell, and the side surface of the collecting shell is fixedly connected to the side surface of the box body, and the bottom of the inner side surface of the collecting shell is fixedly connected to a collecting frame fixedly connected to the inner side surface of the box body, and an elastic mesh is fixedly connected inside the collecting frame, and a guide frame is fixedly connected to the bottom surface of the collecting frame. When the powder and parts on the support plate slide obliquely downward along the support plate, the powder and parts will fall on the elastic mesh in the collecting frame after passing through the surface of the connecting plate, and the powder will pass through the elastic mesh and fall into the guide frame, and then fall out of the collecting module from the bottom of the guide frame, and then the parts can be taken out of the collecting shell, and the parts can be buffered by the elastic mesh, and at the same time, the parts fall on the elastic mesh, and the powder on the parts can be shaken off, which is convenient for cleaning the parts.

[0014] Furthermore, the top of the side of the collecting shell facing away from the box body is rotatably connected to a movable plate through a hinge, and the movable plate can block the interior of the collecting shell. The movable plate can be rotated upward to expose the interior of the collecting shell, and then the parts can be taken out. A dust suction structure can be set on the side of the collecting shell to quickly reduce dust inside the collecting shell and quickly recover floating powder, so as to facilitate the rapid removal of parts.

[0015] Beneficial effects of the present invention:

[0016] 1. The adjusting block is rotatably connected to the connecting seat. A layer of powder can be laid on the top plate and the support plate through the roller mechanism, and then a part of the powder on the support plate can be sintered through the laser mechanism. The support plate can be moved downward along the inside of the retaining frame through the first hydraulic rod. Then, a new layer of powder is laid on the support plate, and a part of the powder is sintered again through the laser mechanism, thereby performing 3D printing of the part. The retaining frame and the connecting plate can block the powder on the support plate to prevent the powder from shifting. After the part printing is completed, the adjusting block can be rotated through the bi-axial motor, so that the connecting plate rotates, so that the powder and the part on the support plate are exposed, and the part is taken out of the retaining frame from the top of the connecting plate. In this way, when taking out the part, the part does not need to be lifted again, so that the laser structure does not need to be moved upward, and a large space does not need to be provided on the top of the support plate to accommodate the lifted part and the movement of the laser structure, which is beneficial to reducing the height of the 3D printer;

[0017] 2. The top surface of the support frame contacts the bottom surface of the retaining frame. The support frame can support the retaining frame. After the printing is completed, after the connecting plate is received under the support plate, the support frame can be moved downward through the second hydraulic rod. At this time, the retaining frame will rotate downward to make the support plate inclined, so that the powder and the part on the support plate slide downward obliquely, which is convenient for taking out the part from the retaining frame. Brief Description of the Drawings

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 is a schematic diagram of the overall structure of a laser 3D printer according to the present invention;

[0020] Figure 2 is a schematic diagram of the internal front view structure of the support module and the collection module in the present invention;

[0021] Figure 3 is a schematic diagram of the internal structure of the box body in the present invention;

[0022] Figure 4 is a schematic diagram of the top plate structure in the present invention;

[0023] Figure 5 is a schematic diagram of the bottom structure of the retaining frame in the present invention;

[0024] Figure 6 is a schematic diagram of the internal structure of the retaining frame in the present invention;

[0025] Figure 7 is a schematic diagram of the top view structure of the support plate in the present invention;

[0026] Figure 8 is a schematic diagram of the bottom structure of the support plate in the present invention;

[0027] Figure 9It is a front internal structure schematic diagram of the connection seat in the present invention;

[0028] Figure 10 It is a schematic diagram of the connection plate structure in the present invention;

[0029] Figure 11 It is a front internal structure schematic diagram of the first limiting rod in the present invention;

[0030] Figure 12 It is a top internal structure schematic diagram of the first limiting rod and the second limiting rod in the present invention;

[0031] Figure 13 It is a front internal structure schematic diagram of the fixed frame in the present invention;

[0032] Figure 14 It is a schematic diagram of the collection module structure in the present invention.

[0033] In the figure: 100, support module; 110, box body; 111, support column; 112, first hydraulic rod; 113, second hydraulic rod; 114, connection block; 120, top plate; 121, baffle; 122, blocking rod; 123, fixed seat; 130, blocking frame; 131, rotating rod; 140, support plate; 141, connection seat; 142, double-shaft motor; 143, adjusting rod; 144, sliding seat; 145, positioning rod; 150, connection plate; 151, adjusting block; 152, first limiting rod; 153, second limiting rod; 154, limiting block; 155, wave rod; 160, support frame; 170, fixed frame; 171, positioning block; 172, wave block; 173, spring; 200, collection module; 210, collection shell; 211, movable plate; 220, collection frame; 230, guiding frame; 300, outer shell. Embodiment

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0035] Please refer to Figures 1-14As shown in the figure, a laser 3D printer includes a support module 100. A housing 300 is fixedly connected to the top of the support module 100. A drum mechanism and a laser mechanism are arranged inside the housing 300. The support module 100 includes a box body 110. The top surface of the box body 110 is fixedly connected to the bottom surface of the housing 300. A top plate 120 is fixedly connected to the top of the inner side surface of the box body 110. A retaining frame 130 is arranged on the bottom surface of the top plate 120. A support plate 140 that is slidably connected to the inner side surface of the retaining frame 130 is slidably connected to the inner side surface of the top plate 120. A hydraulic rod 112 for lifting the support plate 140 is fixedly connected to the inner side surface of the box body 110. A connecting plate 150 that contacts the side surface of the top plate 120 is arranged on one side of the inner side surface of the retaining frame 130, and the top surface of the connecting plate 150 contacts the bottom surface of the top plate 120. A connecting seat 141 is fixedly connected to the bottom surface of the support plate 140 on one side of the connecting plate 150. Two adjusting blocks 151 that are slidably connected to the top of the side surface of the connecting plate 150 and are rotatably connected to the connecting seat 141 are arranged. A double-shaft motor 142 is arranged on the inner side surface of the connecting seat 141. Both output ends of the double-shaft motor 142 are drivingly connected to adjusting rods 143 that are rotatably connected to the inner side surface of the connecting seat 141, and opposite surfaces of the two adjusting blocks 151 are fixedly connected to one end of the adjacent adjusting rod 143.

[0036] A layer of powder is laid on the top plate 120 and the support plate 140 through the drum mechanism. Then, according to the shape of the part, part of the powder on the support plate 140 is sintered by the laser of the laser mechanism. After sintering is completed, the hydraulic rod 112 drives the support plate 140 to move downward along the inside of the retaining frame 130. Then, a new layer of powder is laid on the support plate 140, and part of the powder is sintered again by the laser mechanism, and the newly sintered powder is fused with the previously sintered structure. The above process is repeated until the part is formed. A scraper can be arranged on the drum mechanism. In this way, when the drum mechanism passes over the top plate 120, the scraper can scrape off the powder falling on the top plate 120, avoiding the powder on the top plate 120 from accumulating to a relatively high height. At the same time, the scraper can scrape the powder on the support plate 140 flat, which is beneficial to subsequent laser sintering. The retaining frame 130 and the connecting plate 150 can block the powder on the support plate 140 to prevent the powder from shifting. After the part is printed, the adjusting rod 143 can be rotated by the double-shaft motor 142. The adjusting rod 143 can drive the adjusting block 151 to rotate, so that the connecting plate 150 rotates to the bottom of the support plate 140. In this way, the powder and the part on the support plate 140 can be exposed, facilitating the removal of the part on the top of the support plate 140. When removing the part, it is not necessary to lift the part again, so it is not necessary to move the laser structure upward. In this way, the space at the top of the top plate 120 does not need to be set relatively large to accommodate the lifted part and the movement of the laser structure, which is beneficial to reducing the height of the printer.

[0037] A rotating rod 131 is fixedly connected to the top of the side surface of the retaining frame 130 facing away from the connecting plate 150. A fixed seat 123 rotatably connected to the side surface of the rotating rod 131 is fixedly connected to the bottom surface of the top plate 120. A second hydraulic rod 113 is fixedly connected to the inner side surface of the box body 110. The output end of the second hydraulic rod 113 is drivingly connected to a support frame 160 in contact with the bottom surface of the retaining frame 130. And the bottom of the connecting plate 150 is in contact with the top surface of the support frame 160. The retaining frame 130 can rotate downward with the fixed seat 123 as the center. After the connecting plate 150 receives the bottom of the support plate 140, the support frame 160 can be moved downward by the second hydraulic rod 113. At this time, the retaining frame 130 can rotate downward to tilt the support plate 140, so that the powder and parts on the support plate 140 can slide downward obliquely, facilitating the removal of the parts from the retaining frame 130.

[0038] A sliding seat 144 is slidably connected to the bottom surface of the support plate 140. A positioning rod 145 slidably connected to the inner side surface of the sliding seat 144 is fixedly connected to the bottom surface of the support plate 140. The output end of the first hydraulic rod 112 is drivingly connected to a connecting block 114 rotatably connected to the inner side surface of the sliding seat 144. The first hydraulic rod 112 can drive the connecting block 114 to move upward or downward. The connecting block 114 can drive the sliding seat 144 to move. The sliding seat 144 can drive the support plate 140 to move upward or downward through the positioning rod 145. The sliding seat 144 can slide along the positioning rod 145 at the bottom of the support plate 140, and the sliding seat 144 can rotate relative to the connecting block 114. In this way, after the support frame 160 moves downward, the retaining frame 130 can smoothly drive the support plate 140 to rotate downward to tilt the support plate 140, and the support plate 140 can be driven downward by the first hydraulic rod 112 to smoothly tilt the support plate 140.

[0039] A limiting rod 152 is fixedly connected to the bottom of the side surface of the adjusting block 151. A limiting rod 153 is slidably connected to the side surface of the limiting rod 152. A fixed frame 170 is slidably connected to the bottom of the side surface of the limiting rod 153. The side surface of the fixed frame 170 is fixedly connected to the side surface of the connecting plate 150. A limiting groove is formed in the side surface of the limiting rod 152. A limiting block 154 which is slidably connected to the inner side surface of the limiting groove is fixedly connected to the top of the side surface of the limiting rod 153. Positioning blocks 171 which are slidably connected to the inner side surface of the limiting rod 153 are fixedly connected to both inner side surfaces of the fixed frame 170. The limiting rod 152 and the limiting rod 153 can be connected to each other through the limiting block 154. The limiting rod 153 and the limiting block 154 can slide along the limiting rod 152. The positioning block 171 can limit the moving direction of the limiting rod 153 relative to the fixed frame 170, so that the limiting rod 153 is connected to the fixed frame 170. In this way, the moving direction of the adjusting block 151 relative to the connecting plate 150 can be limited, and the adjusting block 151 can move up or down along the connecting plate 150. In this way, there is no need to form a groove or the like on the connecting plate 150 for restricting the sliding of the adjusting block 151, so that the side surface of the connecting plate 150 can be kept flat, avoiding the displacement of powder between the baffle frame 130 and the connecting plate 150. When the support plate 140 moves downward, since the support frame 160 supports the bottom of the connecting plate 150, the support plate 140 will drive the adjusting block 151 to move downward along the side surface of the connecting plate 150 through the connecting seat 141, so that the limiting rod 152 and the limiting rod 153 move. The limiting rod 152, the limiting rod 153 and the adjusting block 151 are restricted on the connecting plate 150 through the fixed frame 170. When the adjusting block 151 rotates, the adjusting block 151 can drive the limiting rod 152 and the limiting rod 153 to rotate. The limiting rod 153 can drive the connecting plate 150 to rotate through the fixed frame 170, so that the connecting plate 150 rotates to the bottom of the support plate 140.

[0040] The inner side of the fixed frame 170 is provided with a fixed groove, and a wavy block 172 is slidably connected to the inner side of the fixed groove. A spring 173 fixedly connected to the inner side of the fixed groove is fixedly connected to the side of the wavy block 172. A wavy rod 155 in contact with the side of the wavy block 172 is fixedly connected to the inner side of the second limiting rod 153. Since the positioning block 171 can limit the moving direction of the second limiting rod 153 relative to the fixed frame 170, under the action of the spring 173, the wavy block 172 can be pressed against the wavy rod 155, thereby preventing the wavy rod 155 from moving relative to the fixed frame 170 at will. When the adjusting block 151 moves downward, the first limiting rod 152 will first move downward along the second limiting rod 153. After the top end of the second limiting rod 153 contacts the bottom of the adjusting block 151, when the adjusting block 151 continues to move downward, it can directly press the second limiting rod 153 to move downward. At the same time, the positioning block 171 can prevent the second limiting rod 153 from separating from the fixed frame 170, so that the first limiting rod 152 and the second limiting rod 153 will not extend downward by a long length, affecting the rotation of the connecting plate 150.

[0041] Two baffles 121 are fixedly connected to the bottom surface of the top plate 120, and the opposite surfaces of the two baffles 121 are in contact with the side surface of the baffle frame 130. Two stop rods 122 are fixedly connected to the opposite surfaces of the two baffles 121 on one side of the connecting plate 150. The baffles 121 can block both sides of the baffle frame 130 to prevent random scattering. When the connecting plate 150 rotates to the bottom of the support plate 140, if the length of the connecting plate 150 above the support plate 140 is long, the connecting plate 150 will contact the stop rod 122. In this way, under the action of the stop rod 122, the connecting plate 150 can move downward while rotating downward, avoiding the connecting plate 150 from protruding out of the box body 110.

[0042] Four support columns 111 are fixedly connected to the bottom surface of the box body 110. A collection module 200 is arranged on one side of the box body 110 where the opening is located. The collection module 200 includes a collection shell 210, the side surface of the collection shell 210 is fixedly connected to the side surface of the box body 110, a collection frame 220 fixedly connected to the inner side of the box body 110 is fixedly connected to the bottom of the inner side of the collection shell 210, an elastic mesh is fixedly connected inside the collection frame 220, and a guiding frame 230 is fixedly connected to the bottom surface of the collection frame 220. When the powder and parts on the support plate 140 slide obliquely downward along the support plate 140, after the powder and parts pass through the surface of the connecting plate 150, the powder and parts will fall on the elastic mesh inside the collection frame 220, and the powder will pass through the elastic mesh and fall into the guiding frame 230, and then fall out of the collection module 200 from the bottom of the guiding frame 230. Then the parts can be taken out of the collection shell 210. The elastic mesh can buffer the parts, and at the same time, when the parts fall on the elastic mesh, the powder on the parts can be shaken off, facilitating the cleaning of the parts.

[0043] The top of the side of the collection shell 210 facing away from the box body 110 is rotatably connected by a hinge with a movable plate 211. The movable plate 211 can block the inside of the collection shell 210. The movable plate 211 can be rotated upward to expose the inside of the collection shell 210, and then the parts can be taken out. A dust suction structure can be arranged on the side of the collection shell 210, so as to quickly reduce the dust inside the collection shell 210 and quickly recover the floating powder, facilitating the quick removal of the parts.

[0044] Working principle: When in use, a layer of powder is laid on the top plate 120 and the support plate 140 through the roller mechanism, and the powder on the top plate 120 and the support plate 140 is scraped flat through the roller mechanism. Then, according to the shape of the part, part of the powder on the support plate 140 is sintered by the laser mechanism. After sintering is completed, the hydraulic rod 112 drives the support plate 140 to move downward along the inside of the stop frame 130 through the connecting block 114 and the connecting seat 141. Then, a new layer of powder is laid on the support plate 140, and part of the powder is sintered again by the laser mechanism, thereby performing 3D printing of the part.

[0045] After printing is completed, the biaxial motor 142 drives the adjusting rod 143 to rotate. The adjusting rod 143 can drive the adjusting block 151 to rotate. The adjusting block 151 can drive the first limiting rod 152 and the second limiting rod 153 to rotate, so that the second limiting rod 153 can drive the connecting plate 150 to rotate through the fixed frame 170, and the connecting plate 150 rotates to the bottom of the support plate 140. Then, the hydraulic rod 113 drives the support frame 160 to move downward. At this time, under the action of its own gravity, the stop frame 130 can rotate downward, making the support plate 140 and the connecting plate 150 inclined. In this way, the powder and the parts on the support plate 140 can move obliquely downward along the support plate 140. After passing through the surface of the connecting plate 150, the powder and the parts will fall on the elastic mesh cloth in the collection frame 220. The powder will pass through the elastic mesh cloth and fall into the guiding frame 230, and then fall out of the collection module 200 from the bottom of the guiding frame 230. The movable plate 211 can be rotated upward to expose the inside of the collection shell 210, and then the parts can be taken out.

[0046] After the powder and the parts slide out, the biaxial motor 142 can be used to reverse the rotation of the adjusting rod 143, driving the connecting plate 150 to rotate in the reverse direction, making the connecting plate 150 perpendicular to the support plate 140 again. At the same time, the hydraulic rod 113 is used to move the support frame 160 upward, so that the support frame 160 jacks up one side of the stop frame 130, making the stop frame 130 rotate to its original position. The stop frame 130 can drive the support plate 140 to rotate, making the top surface of the support plate 140 parallel to the horizontal plane again. Then, the support plate 140 can be moved upward by the hydraulic rod 112, making the top surface of the support plate 140 and the top surface of the top plate 120 in the same plane. Then, the next part printing can be started.

[0047] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0048] The above content is only an illustration and explanation of the present invention. Those skilled in the art to which this technology belongs can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, as long as they do not deviate from the invention or exceed the scope defined by the claims of the present invention, they should fall within the protection scope of the present invention.

Claims

1. A laser 3D printer, characterized in that, It includes a support module (100). A housing (300) is fixedly connected to the top of the support module (100). A drum mechanism and a laser mechanism are arranged inside the housing (300). The support module (100) includes a box body (110). The top surface of the box body (110) is fixedly connected to the bottom surface of the housing (300). The top of the inner side surface of the box body (110) is fixedly connected to a top plate (120). A stop frame (130) is arranged on the bottom surface of the top plate (120). A support plate (140) that is slidably connected to the inner side surface of the stop frame (130) is slidably connected to the inner side surface of the top plate (120). A first hydraulic rod (112) for lifting the support plate (140) is fixedly connected to the inner side surface of the box body (110). A connecting plate (150) that contacts the side surface of the top plate (120) is arranged on one side of the inner side surface of the stop frame (130), and the top surface of the connecting plate (150) contacts the bottom surface of the top plate (120). A connecting seat (141) is fixedly connected to the bottom surface of the support plate (140) on one side of the connecting plate (150). Two adjusting blocks (151) that are slidably connected to the top of the side surface of the connecting plate (150) and are rotatably connected to the connecting seat (141) are arranged. A double-shaft motor (142) is arranged on the inner side surface of the connecting seat (141). Both output ends of the double-shaft motor (142) are drivingly connected to adjusting rods (143) that are rotatably connected to the inner side surface of the connecting seat (141), and the opposite surfaces of the two adjusting blocks (151) are fixedly connected to one end of the adjacent adjusting rod (143).

2. The laser 3D printer according to claim 1, wherein A rotating rod (131) is fixedly connected to the top of the side surface of the stop frame (130) away from the connecting plate (150). A fixed seat (123) that is rotatably connected to the side surface of the rotating rod (131) is fixedly connected to the bottom surface of the top plate (120). A second hydraulic rod (113) is fixedly connected to the inner side surface of the box body (110). The output end of the second hydraulic rod (113) is drivingly connected to a support frame (160) that contacts the bottom surface of the stop frame (130), and the bottom of the connecting plate (150) contacts the top surface of the support frame (160).

3. The laser 3D printer according to claim 1, characterized in that, A sliding seat (144) is slidably connected to the bottom surface of the support plate (140). A positioning rod (145) that is slidably connected to the inner side surface of the sliding seat (144) is fixedly connected to the bottom surface of the support plate (140). The output end of the first hydraulic rod (112) is drivingly connected to a connecting block (114) that is rotatably connected to the inner side surface of the sliding seat (144).

4. A laser 3D printer according to claim 1, characterized in that, The bottom of the side of the adjustment block (151) is fixedly connected to the limiting rod 1 (152), the side of the limiting rod 1 (152) is slidably connected to the limiting rod 2 (153), the bottom of the side of the limiting rod 2 (153) is slidably connected to a fixing frame (170), and the side of the fixing frame (170) is fixedly connected to the side of the connecting plate (150), a limiting groove is provided on the side of the limiting rod 1 (152), the top of the side of the limiting rod 2 (153) is fixedly connected to a limiting block (154) slidably connected to the inner side of the limiting groove, and both inner sides of the fixing frame (170) are fixedly connected to positioning blocks (171) slidably connected to the inner side of the limiting rod 2 (153).

5. The laser 3D printer according to claim 4, wherein The inner side surface of the fixing frame (170) is provided with a fixing groove, the inner side surface of the fixing groove is slidably connected to a wave block (172), the side surface of the wave block (172) is fixedly connected to a spring (173) fixedly connected to the inner side surface of the fixing groove, and the inner side surface of the second limiting rod (153) is fixedly connected to a wave rod (155) in contact with the side surface of the wave block (172).

6. The laser 3D printer according to claim 1, wherein, The bottom surface of the top plate (120) is fixedly connected to two baffles (121), and the opposing surfaces of the two baffles (121) are in contact with the side surfaces of the baffle frame (130). The opposing surfaces of the two baffles (121) are located on one side of the connecting plate (150) and are fixedly connected to a baffle rod (122).

7. A laser 3D printer according to claim 1, characterized in that, Four support columns (111) are fixedly connected to the bottom surface of the box body (110); a collecting module (200) is provided on one side of the opening of the box body (110); the collecting module (200) comprises a collecting shell (210); a side surface of the collecting shell (210) is fixedly connected to a side surface of the box body (110); a collecting frame (220) fixedly connected to the inner side surface of the box body (110) is fixedly connected to the bottom of the inner side surface of the collecting shell (210); an elastic mesh is fixedly connected to the inside of the collecting frame (220); and a guide frame (230) is fixedly connected to the bottom surface of the collecting frame (220).

8. A laser 3D printer according to claim 7, wherein The top of the side surface of the collection shell (210) facing away from the box body (110) is rotatably connected to a movable plate (211) via a hinge.

Images