A 3D printing device for a high-molecular artificial bone support

Abstract

The application belongs to the technical field of 3D printing, and particularly discloses a high-molecular artificial bone support 3D printing device, which comprises a printer body, a nozzle A installed on the top of the inner wall of the printer body, and a workbench installed on the bottom of the inner wall of the printer body, further comprises a waste treatment mechanism installed on both sides of the workbench and oppositely distributed; the waste treatment mechanism comprises a discharging assembly, a blocking assembly and a scraping assembly, the discharging assembly is installed on the inner wall of the printer body and oppositely distributed on both sides of the workbench; the discharging assembly can repeatedly vibrate and guide the attached waste, so that the waste can slide down under the influence of gravity, assisting people in concentratedly cleaning the waste; the blocking assembly can increase the collection range of the waste and reduce the splashing of the waste; the scraping assembly can scrape the attached waste and make the waste fall through the wind, assisting people in cleaning the waste.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of 3D printing, and particularly relates to a high-molecular artificial bone support 3D printing device. BACKGROUND

[0002] In the field of orthopedics, bone defects caused by various reasons such as serious trauma, bone tumors, osteomyelitis, etc. are very common, and artificial bone needs to be used to replace human bone or repair bone tissue defects. In the process of preparing artificial bone, a 3D printer is used for working, a digital model file is used as a basis, and a powder-like metal or plastic or other adhesive materials are used to construct an object through layer-by-layer printing. Compared with traditional molding and shaping, the efficiency is obviously improved.

[0003] When printing is performed by the 3D printer, a large amount of waste will be generated on the workbench, and the waste will be scattered under the influence of the wind generated by the nozzle, so that a large amount of irregularly distributed waste will be left on the workbench, and the waste has certain adhesion and is easy to adhere to the surface of the workbench after cooling, affecting subsequent printing.

[0004] To solve the above problems, a high-molecular artificial bone support 3D printing device is provided in the application. SUMMARY

[0005] To solve the problems in the background art, the application provides a high-molecular artificial bone support 3D printing device, which has the characteristics of convenient cleaning and discharging.

[0006] To achieve the above purpose, the application provides the following technical scheme: a high-molecular artificial bone support 3D printing device, comprising a printer body, a nozzle A installed on the top of the inner wall of the printer body, and a workbench installed on the bottom of the inner wall of the printer body, further comprising a waste treatment mechanism installed on both sides of the workbench and oppositely distributed.

[0007] The waste treatment mechanism comprises a discharging assembly, a blocking assembly and a scraping assembly, the discharging assembly is installed on the inner wall of the printer body and oppositely distributed on both sides of the workbench, and one side of the surface of the discharging assembly is in contact with the surface of the workbench, the blocking assembly is fixedly arranged on the surface of the discharging assembly and located on one side of the workbench, and the blocking assembly is slidingly connected in the cavity on the surface of the discharging assembly.

[0008] Preferably, the unloading assembly comprises a longitudinal plate welded to the inner wall of the printer body and a transverse plate hinged to one side of the surface of the longitudinal plate, and the surface of the side of the transverse plate away from the longitudinal plate is in contact with the surface of the workbench, a housing is welded to the side of the surface of the longitudinal plate away from the transverse plate, a motor is fastened to one side of the surface of the housing through bolts, a half gear is fixed to the output shaft of the motor inserted into the housing, a toothed rod is connected to one side of the surface of the half gear through meshing teeth, the toothed rod is slidingly connected in a through groove formed in the surface of the longitudinal plate, and a roller is rotatably connected to the side of the surface of the longitudinal plate away from the toothed rod.

[0009] Preferably, the toothed rod is provided with a sliding groove at a position corresponding to the through groove of the longitudinal plate, and a T-shaped sliding block is slidingly connected in the sliding groove, one side of the sliding block extending out of the sliding groove is fixed to the longitudinal plate, and a spring A is fixed to the surface of the side of the sliding block in the sliding groove, and one end of the spring A away from the sliding block is fixed to the toothed rod.

[0010] Preferably, the material blocking assembly comprises a corrugated pad of C-shaped structure fixed outside the cavity of the transverse plate and an outer frame bonded to the side of the corrugated pad away from the transverse plate, a sleeve plate A is welded to one side of the surface of the outer frame, a sleeve plate B is inserted into the sleeve plate A, and the sleeve plate B is fixed to the surface of the transverse plate extending out of the sleeve plate A.

[0011] Preferably, a knob is rotatably connected to one side of the surface of the sleeve plate A, one end of the knob inserted into the sleeve plate A is welded to the sleeve plate A, a bevel gear A is meshingly connected to one side of the surface of the sleeve plate A, a screw rod is fixedly sleeved in the bevel gear A, one end of the screw rod is rotatably connected to the inner wall of the sleeve plate A, and the other end of the screw rod is screwed into a screw hole formed in the surface of the sleeve plate B.

[0012] Preferably, the material scraping assembly comprises a sleeve plate C slidingly connected in a sliding groove in the inner wall of the transverse plate and a plug plate inserted into the sleeve plate C, a push plate A is welded to one side of the surface of the plug plate extending out of the sleeve plate C, and a limiting plate is welded to one side of the plug plate inserted into the sleeve plate C, and a scraping plate is welded to the side of the limiting plate away from the plug plate.

[0013] Preferably, the 3D printing device for the polymer artificial bone scaffold of the present application is characterized in that a slot is formed on the surface of the sleeve plate C corresponding to the position of the insertion plate, and a push plate B is inserted into the slot, a connecting rod is welded on one side of the push plate B inserted into the slot, and a clamping plate is welded on one end of the connecting rod inserted into the sleeve plate C, the clamping plate is inserted into a fixed groove formed on the surface of the insertion plate corresponding to the position, and a spring B is wound on one side of the connecting rod on the surface of the clamping plate, and the two ends of the spring B are fixedly connected with the clamping plate and the sleeve plate C respectively.

[0014] Preferably, the 3D printing device for the polymer artificial bone scaffold of the present application is characterized in that a shell cover is welded on the surface of the transverse plate in the corrugated pad, and an air pipe is fixedly arranged on the surface of the shell cover, one end of the air pipe inserted into the shell cover is welded with a transversely arranged connecting pipe, a plurality of horizontally equidistantly distributed pipelines are fixedly arranged on one side of the surface of the connecting pipe, and one end of the pipeline penetrating into the inner wall groove of the transverse plate is fixedly provided with a nozzle.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] The unloading assembly can repeatedly vibrate and guide the attached waste, so that the waste can slide downward under the action of gravity, assisting people in concentrating on cleaning the waste, the blocking assembly can increase the collection range of the waste, reduce the splashing of the waste, and the scraping assembly can scrape the attached waste and make the waste fall vertically through the wind, assisting people in cleaning the waste. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, and are used together with the embodiments of the present application to explain the present application, and do not constitute a limitation on the present application. In the drawings:

[0018] Figure 1 is a structural schematic diagram of the present application;

[0019] Figure 2 is a sectional structural schematic diagram of the unloading assembly in the present application;

[0020] Figure 3 is a sectional structural schematic diagram between the longitudinal plate and the tooth rod in the present application;

[0021] Figure 4 is a sectional structural schematic diagram of the inside of the transverse plate in the present application;

[0022] Figure 5 is a sectional structural schematic diagram between the sleeve plate A and the outer frame in the present application;

[0023] Figure 6A schematic view of the cross-sectional structure between the sleeve plate A and the sleeve plate B in the present application;

[0024] In the figure:

[0025] 1, printer body; 2, nozzle A; 3, workbench; 4, waste treatment mechanism;

[0026] 41, discharging assembly; 411, vertical plate; 412, horizontal plate; 413, housing; 414, motor; 415, half gear; 416, roller; 417, rack; 4171, spring A; 4172, sliding block;

[0027] 42, material blocking assembly; 421, corrugated pad; 422, outer frame; 423, sleeve plate A; 424, screw; 425, bevel gear A; 426, bevel gear B; 427, knob; 428, sleeve plate B;

[0028] 43, material scraping assembly; 431, push plate A; 432, push plate B; 4321, clamping plate; 4322, spring B; 4323, connecting rod; 433, insertion plate; 434, scraping plate; 435, limiting plate; 436, sleeve plate C; 437, housing; 4371, air pipe; 4372, connecting pipe; 4373, nozzle. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] As Figures 1-6 shown;

[0031] A high polymer artificial bone scaffold 3D printing device, comprising a printer body 1 and a nozzle A 2 installed on the top of the inner wall of the printer body 1 and a workbench 3 installed on the bottom of the inner wall of the printer body 1.

[0032] In the present embodiment: the nozzle A 2 performs modeling printing during operation, and the printed parts are supported by the workbench 3, but during the printing operation by the 3D printer, a large amount of waste will be generated on the workbench, and the waste will be scattered under the influence of the wind generated by the nozzle, resulting in a large amount of irregularly distributed waste remaining on the workbench, and the waste has certain adhesion, which is easy to adhere to the surface of the workbench after cooling, affecting subsequent printing.

[0033] The high polymer artificial bone scaffold 3D printing device further comprises a waste treatment mechanism 4 installed on both sides of the workbench 3 and oppositely distributed;

[0034] The waste treatment mechanism 4 comprises a discharging assembly 41, a blocking assembly 42 and a scraping assembly 43. The discharging assembly 41 is mounted on the inner wall of the printer body 1 and oppositely arranged on both sides of the workbench 3. The surface of the discharging assembly 41 is in contact with the surface of the workbench 3. The blocking assembly 42 is fixedly arranged on the surface of the discharging assembly 41 and located on one side of the workbench 3. The blocking assembly 42 is slidingly connected in the cavity of the surface of the discharging assembly 41.

[0035] In this embodiment, the discharging assembly 41 can repeatedly vibrate and guide the attached waste, so that the waste can slide downward under the action of gravity, thereby assisting people in collecting and cleaning the waste. The blocking assembly 42 can increase the collection range of the waste and reduce the splashing of the waste. The scraping assembly 43 can scrape the attached waste and make the waste fall vertically through the wind, thereby assisting people in cleaning the waste.

[0036] It should be noted that the power equipment involved in the product is powered by an external power source.

[0037] In an optional embodiment, the discharging assembly 41 comprises a longitudinal plate 411 welded on the inner wall of the printer body 1 and a transverse plate 412 hingedly arranged on one side of the surface of the longitudinal plate 411. The surface of the transverse plate 412 away from the longitudinal plate 411 is in contact with the surface of the workbench 3. A housing 413 is welded on one side of the surface of the longitudinal plate 411 away from the transverse plate 412. A motor 414 is fastened on one side of the surface of the housing 413 by bolts. A half gear 415 is fixedly arranged on the output shaft of the motor 414 inserted into the housing 413. A toothed rod 417 is connected to one side of the surface of the half gear 415 by tooth engagement. The toothed rod 417 is slidingly connected in a through slot formed in the surface of the longitudinal plate 411. A roller 416 is rotatably connected to one side of the surface of the toothed rod 417 extending out of the surface of the longitudinal plate 411. The surface of the roller 416 is in contact with the inclined surface of the transverse plate 412.

[0038] In this embodiment, the motor 414 drives the half gear 415 to rotate when in operation, so that the toothed rod 417 drives the roller 416 to move while the transverse plate 412 is lowered under the action of gravity. The waste slides downward along the transverse plate 412 under the action of gravity, thereby assisting people in collecting and processing the waste.

[0039] In an optional embodiment, a sliding groove is formed in the surface of the toothed rod 417 corresponding to the position of the through slot of the longitudinal plate 411. A T-shaped sliding block 4172 is slidingly connected in the sliding groove. One side of the sliding block 4172 extending out of the sliding groove is fixedly connected with the longitudinal plate 411. A spring A 4171 is fixedly arranged on one side of the surface of the sliding block 4172 located in the sliding groove. One end of the spring A 4171 away from the sliding block 4172 is fixedly connected with the toothed rod 417.

[0040] In this embodiment: in combination with the above, when the half gear 415 is separated from the toothed rod 417, the spring A4171 is forced to rebound to push the horizontal plate 412 back to the original position until the half gear 415 is re-engaged with the toothed rod 417, realizing the reciprocating swing of the horizontal plate 412, which can accelerate the falling of waste materials, and at the same time, the vibration generated during the reciprocating swing of the horizontal plate 412 can accelerate the efficiency of waste materials.

[0041] In an optional embodiment, the material blocking assembly 42 comprises a corrugated pad 421 fixed outside the cavity of the horizontal plate 412 in a C-shaped structure, and an outer frame 422 bonded on the side of the corrugated pad 421 away from the horizontal plate 412, and the surface of the outer frame 422 is welded with a sleeve plate A 423, the sleeve plate A 423 is inserted with a sleeve plate B 428, and the sleeve plate B 428 is fixedly connected with the surface of the horizontal plate 412 on the side extending out of the sleeve plate A 423.

[0042] In this embodiment: while controlling the sleeve plate A 423 to move along the sleeve plate B 428, the outer frame 422 drives the corrugated pad 421 to extend to the appropriate position, and the sleeve plate A 423 and the sleeve plate B 428 are fixed by external fixing members, thereby increasing the cavity between the horizontal plate 412 and the outer frame 422, and thus increasing the collection range of waste materials and reducing the splashing of waste materials.

[0043] In an optional embodiment, the surface of the sleeve plate A 423 is rotatably connected with a knob 427, the end of the knob 427 inserted into the sleeve plate A 423 is welded with the sleeve plate A 423, the surface of the sleeve plate A 423 is meshingly connected with a bevel gear A 425, and the bevel gear A 425 is fixedly sleeved with a screw rod 424 inside, one end of the screw rod 424 is rotatably connected with the inner wall of the sleeve plate A 423, and the other end of the screw rod 424 is screwed into the screw hole opened on the surface of the sleeve plate B 428.

[0044] In this embodiment: by rotating the knob 427 to drive the bevel gear B 426 to rotate, the sleeve plate B 428 can be moved by the screw rod 424 to push the sleeve plate A 423, thereby adjusting the cavity between the horizontal plate 412 and the outer frame 422.

[0045] In an optional embodiment, the material scraping assembly 43 comprises a sleeve plate C 436 slidably connected in the sliding groove of the inner wall of the horizontal plate 412, and a plug plate 433 inserted into the sleeve plate C 436, the side of the plug plate 433 extending out of the surface of the sleeve plate C 436 is welded with a push plate A 431, and the side of the material scraping assembly 43 inserted into the sleeve plate C 436 is welded with a limiting plate 435, and the side of the limiting plate 435 away from the plug plate 433 is welded with a scraping plate 434.

[0046] In the embodiment, the push plate A431 is pushed to move the scraper 434 downward until it is attached to the inner wall of the horizontal plate 412. At this time, the push plate A431 is pushed to move the sleeve plate C436 along the horizontal plate 412, and the scraper 434 can scrape the waste along the way to reduce the waste adhesion.

[0047] In an optional embodiment, a slot is formed on one side of the surface of the sleeve plate C436 corresponding to the position of the insertion plate 433, and the push plate B432 is inserted into the slot. The insertion plate 433 is welded with a connecting rod 4323 on one side of the slot, and the connecting rod 4323 is welded with a clamping plate 4321 at one end inserted into the sleeve plate C436. The clamping plate 4321 is inserted into the fixing slot formed on the surface of the insertion plate 433 corresponding to the position on the side away from the connecting rod 4323. The connecting rod 4323 is wound with a spring B4322 on one side of the surface of the clamping plate 4321, and the both ends of the spring B4322 are fixedly connected with the clamping plate 4321 and the sleeve plate C436.

[0048] In the embodiment, after the above-mentioned movement of the scraper 434, the spring B4322 is forced to rebound to push the clamping plate 4321 into the fixing slot of the insertion plate 433 corresponding position, and the fixation of the scraper 434 is completed, which facilitates the cleaning operation of the inside of the horizontal plate 412 by the scraper 434.

[0049] In an optional embodiment, a shell 437 is welded on the surface of the horizontal plate 412 inside the corrugated pad 421, and a gas pipe 4371 is fixedly arranged on the surface of the shell 437. The gas pipe 4371 is welded with a horizontally arranged connecting pipe 4372 at one end inserted into the shell 437. A plurality of horizontally equidistant distributed pipelines are fixedly arranged on one side of the surface of the connecting pipe 4372, and the pipelines are fixedly arranged with a nozzle 4373 at one end penetrating into the inner wall slot of the horizontal plate 412.

[0050] In the embodiment, the gas pipe 4371 is connected with the external pipeline in advance, and the gas is transported into the gas pipe 4371 through the external pipeline, and then sprayed through the nozzle 4373, so as to accelerate the falling of the waste.

[0051] It should be noted that the nozzle 4373 is used before the last scraping by the scraper 434, which is used to process the floating waste accumulated in the horizontal plate 412.

[0052] The working principle and use process of the present application: the knob 427 is rotated to drive the bevel gear B 426 to rotate, so that the bevel gear A 425 drives the screw rod 424 to rotate, and the sleeve plate B 428 can be moved by the screw rod 424 to push the sleeve plate A 423, thereby adjusting the cavity between the horizontal plate 412 and the outer frame 422. The motor 414 drives the half gear 415 to rotate during operation, so that the toothed rod 417 drives the roller 416 to move while the horizontal plate 412 is lowered by gravity, and the waste is affected by gravity and slides down along the horizontal plate 412. When the half gear 415 is separated from the toothed rod 417, the spring A 4171 is forced to rebound to push the horizontal plate 412 back to the original position until the half gear 415 and the toothed rod 417 are re-engaged, realizing the reciprocating swing of the horizontal plate 412. It can accelerate the waste falling, and at the same time, the vibration generated by the reciprocating swing of the horizontal plate 412 can accelerate the waste efficiency. The air pipe 4371 is connected with the external pipeline in advance, and gas is transported into the air pipe 4371 through the external pipeline, and then sprayed out through the nozzle 4373, thereby accelerating the waste falling. Pushing the push plate A 431 makes the scraper 434 move downward until it is attached to the inner wall of the horizontal plate 412. After moving the scraper 434, the spring B 4322 is forced to rebound to push the clamping plate 4321 into the fixed groove corresponding to the position of the insertion plate 433, completing the fixation of the scraper 434. At this time, pushing the scraping assembly 43 drives the sleeve plate C 436 to move along the horizontal plate 412, and the scraper 434 can scrape the waste along the way to reduce the waste adhesion.

[0053] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for those skilled in the art, it still can be modified to the technical solutions recorded in the foregoing embodiments, or equivalent replacement of some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A polymer artificial bone scaffold 3D printing device, comprising a printer body (1), a nozzle A (2) mounted on the top of the inner wall of the printer body (1), and a workbench (3) mounted on the bottom of the inner wall of the printer body (1), characterized in that: It also includes waste processing mechanisms (4) installed on both sides of the workbench (3) and arranged in opposite directions; The waste disposal mechanism (4) includes a discharge assembly (41), a stop assembly (42) and a scraper assembly (43), wherein the discharge assembly (41) is mounted on the inner wall of the printer body (1) and is oppositely distributed on both sides of the workbench (3), and one side of the surface of the discharge assembly (41) contacts the surface of the workbench (3), the stop assembly (42) is fixedly arranged on the surface of the discharge assembly (41) and is located on one side of the workbench (3), and the stop assembly (42) is slidably connected to the cavity on the surface of the discharge assembly (41); the discharge assembly (41) includes a longitudinal plate (41) welded to the inner wall of the printer body (1) 1) and a transverse plate (412) hinged on one side of the surface of the longitudinal plate (411), and the surface of the transverse plate (412) away from the longitudinal plate (411) is in conflict with the surface of the workbench (3), the surface of the longitudinal plate (411) away from the transverse plate (412) is welded with a shell (413), one side of the surface of the shell (413) is fastened with a motor (414) by bolts, and the output shaft of the motor (414) inserted into the shell (413) is fixed with a half gear (415), one side of the surface of the half gear (415) is connected to a gear rod (417) through tooth meshing, and the gear rod (417) is slidably connected to the longitudinal plate (411). The plate (411) is provided with a through groove on its surface, and the gear rod (417) extends out of one side of the surface of the longitudinal plate (411) and is rotatably connected to a roller (416), the surface of the roller (416) is in contact with the inclined surface of the transverse plate (412), the material blocking assembly (42) comprises a corrugated pad (421) fixedly provided on the outside of the cavity of the transverse plate (412) and having a C-shaped structure, and an outer frame (422) bonded to the side of the corrugated pad (421) away from the transverse plate (412), a sleeve plate A (423) is welded on one side of the surface of the outer frame (422), a sleeve plate B (428) is inserted into the sleeve plate A (423), and the sleeve plate B (428) is inserted into the sleeve plate 8) One side of the sleeve plate A (423) is extended and fixedly connected to the surface of the horizontal plate (412); one side of the surface of the sleeve plate A (423) is rotatably connected to a knob (427), and one end of the knob (427) inserted into the sleeve plate A (423) is welded to the sleeve plate A (423), one side of the surface of the sleeve plate A (423) is meshedly connected to a bevel gear A (425), and a screw (424) is fixedly sleeved in the bevel gear A (425), one end of the screw (424) is rotatably connected to the inner wall of the sleeve plate A (423), and the other end of the screw (424) is screwed into a screw hole opened on the surface of the sleeve plate B (428).

2. The polymer artificial bone scaffold 3D printing device according to claim 1, characterized in that: A sliding groove is provided on the surface of the gear rod (417) at a position corresponding to the through groove of the longitudinal plate (411), and a T-shaped slider (4172) is slidably connected in the sliding groove. One side of the slider (4172) extending out of the sliding groove is fixedly connected to the longitudinal plate (411), and a spring A (4171) is fixedly provided on the surface of one side of the slider (4172) located in the sliding groove, and one end of the spring A (4171) away from the slider (4172) is fixedly connected to the gear rod (417).

3. The polymer artificial bone scaffold 3D printing device according to claim 2, characterized in that: The scraper assembly (43) includes a sleeve plate C (436) slidably connected to the inner wall groove of the transverse plate (412) and an inserting plate (433) inserted into the sleeve plate C (436), a push plate A (431) being welded to the side of the inserting plate (433) extending out of the surface of the sleeve plate C (436), and a limiting plate (435) being welded to the side of the scraper assembly (43) inserted into the sleeve plate C (436), and a scraper plate (434) being welded to the side of the limiting plate (435) away from the inserting plate (433).

4. The polymer artificial bone scaffold 3D printing device according to claim 3, characterized in that: A slot is provided on one side of the surface of the sleeve C (436) at a position corresponding to the inserting plate (433), and a push plate B (432) is inserted into the slot. A connecting rod (4323) is welded to one side of the push plate B (432) inserted into the slot, and a clamping plate (4321) is welded to one end of the connecting rod (4323) inserted into the sleeve C (436). A side of the clamping plate (4321) away from the connecting rod (4323) is inserted into a fixed groove provided at a corresponding position on the surface of the inserting plate (433). A spring B (4322) is wound on one side of the surface of the connecting rod (4323) located on the clamping plate (4321), and both ends of the spring B (4322) are fixedly connected to the clamping plate (4321) and the sleeve C (436), respectively.

5. The polymer artificial bone scaffold 3D printing device according to claim 4, characterized in that: A shell cover (437) is welded to the surface of the transverse plate (412) located inside the corrugated pad (421), and an air pipe (4371) is fixedly provided on the surface of the shell cover (437). A transversely arranged connecting pipe (4372) is welded to one end of the air pipe (4371) inserted into the shell cover (437). A plurality of horizontally equidistantly distributed pipelines are fixedly provided on one side of the surface of the connecting pipe (4372), and a nozzle (4373) is fixedly provided on one end of the pipeline that passes through the notch in the inner wall of the transverse plate (412).

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