CN113276419A

CN113276419A - Switched printing platform of FDM three-dimensional printer

Info

Publication number: CN113276419A
Application number: CN202110771461.9A
Authority: CN
Inventors: 李思文; 何福蓉; 李义孥; 陈平雄
Original assignee: Shandong Yiren Intelligent Manufacturing Technology Co ltd
Current assignee: Shandong Yiren Intelligent Manufacturing Technology Co ltd
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2021-08-20

Abstract

The invention provides an exchange type printing platform of an FDM (fused deposition modeling) three-dimensional printer, which comprises a base, wherein a transmission assembly, lifting assemblies arranged on two sides of the transmission assembly and a conveying assembly arranged on one side of the two lifting assemblies are fixed on the upper surface of the base; the lifting assembly comprises first lifting mechanisms arranged on two sides of one end of the transmission assembly and second lifting mechanisms arranged on two sides of the other end of the transmission assembly; the conveying assembly comprises a supporting frame fixed on the upper surface of the base, a first lifting mechanism fixed inside the supporting frame, and a second lifting mechanism arranged on one side of the two first lifting mechanisms. According to the invention, the 3D printing head can rapidly realize the switching of the chassis to be printed through the mutual conversion of the positions of the first chassis and the second chassis, and the printed piece is automatically scraped off, so that batch and automatic printing is realized.

Description

Switched printing platform of FDM three-dimensional printer

Technical Field

The invention mainly relates to the technical field of 3D printing, in particular to an exchange type printing platform of an FDM three-dimensional printer.

Background

3D printing, one of the fast formation techniques, is a technique for constructing objects using layer-by-layer printing based on digital model files.

According to the printing platform of the FDM type 3D printer provided in patent document No. CN201921111751.5, the product includes a platform plate installed at the lower end of the printer, a rotating device and a sliding device for driving the platform plate to move, the platform plate is installed at the upper end of the rotating device, the rotating device includes a rotating base and a bearing installed in the rotating base, the rotating device realizes the rotation of the platform plate, the convenience of 3D printing is improved, the rotating device increases the stability of rotation through a crossed roller bearing, and the horizontality of the platform plate during rotation is maintained; the sliding device pushes the sliding seat out of the outer end of the printer under the control of the driving motor, so that a product printed by 3D is convenient to take; the landing slab is connected at the dish board through inserting a post magnetism, and the detachable construction of landing slab is convenient for change the landing slab and has increased work efficiency, inserts the stability that post magnetism was connected and has increased the landing slab laminating simultaneously.

But above-mentioned 3D printer's print platform still has the defect, for example above-mentioned print platform has increased the stability of landing slab laminating, but traditional still stays in the stage that the singleness was printed, is difficult to change the chassis fast to realize in batches and automatic printing, thereby reduced printing efficiency.

Disclosure of Invention

The invention mainly provides an exchange type printing platform of an FDM three-dimensional printer, which is used for solving the technical problems in the background technology.

The technical scheme adopted by the invention for solving the technical problems is as follows:

an exchange type printing platform of an FDM three-dimensional printer comprises a base, wherein a transmission assembly, lifting assemblies arranged on two sides of the transmission assembly and a conveying assembly arranged on one side, far away from each other, of the two lifting assemblies are fixed on the upper surface of the base, a scraper rack is arranged at the top end of the conveying assembly, and a first chassis and a second chassis are abutted to two ends of the conveying assembly respectively;

the lifting assembly comprises first lifting mechanisms arranged on two sides of one end of the transmission assembly and second lifting mechanisms arranged on two sides of the other end of the transmission assembly, the first lifting mechanisms and the second lifting mechanisms are identical in structure, and each first lifting mechanism comprises a first air cylinder arranged on two sides of the transmission assembly and fixed on the upper surface of the base;

the conveying assembly comprises a supporting frame fixed on the upper surface of the base, a first lifting mechanism fixed inside the supporting frame and a second lifting mechanism arranged on one side, away from each other, of the first lifting mechanism, the execution end of the first lifting mechanism is connected with a first conveying belt used for conveying the first chassis, and the execution end of the second lifting mechanism is connected with a second conveying belt used for conveying the second chassis.

Further, the transmission assembly comprises a third conveying belt fixed at the top end of the base and a plurality of first limiting baffle plates which are fixed on the outer surface of the third conveying belt and are arranged at equal intervals, and the first base plate or the second base plate is limited to move through the first limiting baffle plates so as to drive the first base plate or the second base plate to move stably.

Furthermore, a plurality of second limit baffles arranged at equal intervals are fixed on the outer surfaces of the first conveying belt and the second conveying belt, and the second conveying belt drives the second chassis to stably move through the second limit baffles on the second conveying belt.

Furthermore, the first lifting mechanism and the second lifting mechanism are identical in structure, the second lifting mechanism comprises two second cylinders fixed inside the supporting frame and a bearing frame fixed at the top end of each second cylinder, and the bearing frame is rotatably connected with the second conveying belt through a bearing seat so as to drive a second chassis on the second conveying belt to lift.

Furthermore, the inside of first conveyer belt and second conveyer belt all is equipped with a plurality of electromagnets that are fixed in on the bearing frame inner wall adsorbs first chassis and second chassis through the electromagnet in first conveyer belt and the second conveyer belt to it is fixed to align, reduces the removal that first chassis and second chassis receive external force to influence and produce, so that follow-up D beats printer head and prints.

Furthermore, tensioning wheels are arranged inside the first conveying belt and the second conveying belt, and the tensioning wheels are fixed on the inner wall of the bearing frame so as to enable the first conveying belt and the second conveying belt to drive the first chassis and the second chassis on the first conveying belt and the second conveying belt to stably move.

Furthermore, a scraper is fixed on one side of the scraper frame close to the first lifting mechanism, so that the scraper frame automatically scrapes off and moves the printing pieces formed on the first chassis and the second chassis of the second lifting mechanism through the scraper on the scraper frame.

Furthermore, brush rollers which are symmetrically arranged are fixed on the lower surfaces of the first chassis and the second chassis through bearing seats, and the second chassis is cleaned when passing through the first chassis from the upper side of the second chassis.

Furthermore, the top surface of support frame is fixed with the CCD camera to the third conveyer belt of being connected with is controlled to the PLC controller and is operated, until the third conveyer belt can be accurate first chassis and second chassis card go into between two adjacent first spacing plate washers.

Furthermore, the first lifting mechanism further comprises a sliding plate fixed at the top end of the piston rod of the first cylinder and balls embedded into the top end of the sliding plate and arranged in an array, and the sliding plate slides on the first chassis and the second chassis through the balls embedded into the sliding plate so as to reduce dry friction between the first chassis and the sliding plate and between the second chassis and the sliding plate.

Compared with the prior art, the invention has the beneficial effects that:

firstly, the 3D printing head can quickly realize the switching of the chassis to be printed through the mutual conversion of the positions of the first chassis and the second chassis, so as to realize batch and automatic printing, and the method specifically comprises the following steps: the second chassis ascends under the cooperation of the second conveying belt and the first lifting mechanism and moves towards the direction of moving the second lifting mechanism, and the first chassis descends under the cooperation of the first conveying belt and the second lifting mechanism and moves towards the direction of the first lifting mechanism, so that the positions of the first chassis and the second chassis are mutually changed.

Secondly, the invention can automatically scrape off the printed parts through the mutual conversion of the positions of the first chassis and the second chassis so as to realize batch and automatic printing, and specifically comprises the following steps: because the scraper on the scraper frame is close to one side of the first lifting mechanism, when the second chassis is far away from the first lifting mechanism, the printing part on the second chassis is automatically scraped off by the scraper.

The present invention will be explained in detail below with reference to the drawings and specific embodiments.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of the transfer assembly and lift assembly of the present invention;

FIG. 3 is a schematic view of the construction of the delivery assembly of the present invention;

FIG. 4 is a schematic view of the internal structure of the stand according to the present invention;

FIG. 5 is an isometric view of the present invention;

FIG. 6 is a schematic structural diagram of a first chassis according to the present invention;

FIG. 7 is a top view of the present invention;

fig. 8 is a front view of the present invention.

In the figure: 10. a base; 20. a doctor holder; 21. a scraper; 30. a transmission assembly; 31. a third conveyor belt; 32. a first limit baffle plate; 40. a lifting assembly; 41. a first lifting mechanism; 411. a first cylinder; 412. a sliding plate; 413. a ball bearing; 42. a second lifting mechanism; 50. a second chassis; 60. a delivery assembly; 61. a support frame; 62. a second conveyor belt; 63. a second limit baffle; 64. a second lifting mechanism; 641. a bearing bracket; 642. a second cylinder; 65. a first lifting mechanism; 66. a first conveyor belt; 67. an electromagnet; 68. a tension wheel; 70. a first chassis; 71. a brush roller; 80. a CCD camera.

Detailed Description

In order to facilitate an understanding of the invention, the invention will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which may be embodied in different forms and not limited to the embodiments described herein, but which are provided so as to provide a more thorough and complete disclosure of the invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the knowledge of the terms used herein in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In an embodiment, referring to fig. 1 to 8, in a preferred embodiment of the present invention, an exchange printing platform of an FDM three-dimensional printer includes a base 10, a transmission assembly 30, lifting assemblies 40 disposed on two sides of the transmission assembly 30, and a conveying assembly 60 disposed on one side of the two lifting assemblies 40 away from each other are fixed on an upper surface of the base 10, a scraper frame 20 is disposed at a top end of the conveying assembly 60, and a first chassis 70 and a second chassis 50 are respectively abutted to two ends of the conveying assembly 60;

the lifting assembly 40 comprises first lifting mechanisms 41 arranged on two sides of one end of the transmission assembly 30 and second lifting mechanisms 42 arranged on two sides of the other end of the transmission assembly 30, the first lifting mechanisms 41 and the second lifting mechanisms 42 have the same structure, and the first lifting mechanisms 41 comprise first air cylinders 411 arranged on two sides of the transmission assembly 30 and fixed on the upper surface of the base 10;

the conveying assembly 60 comprises a supporting frame 61 fixed on the upper surface of the base 10, a first lifting mechanism 65 fixed inside the supporting frame 61, and a second lifting mechanism 64 arranged on one side of the two first lifting mechanisms 65 away from each other, wherein the execution end of the first lifting mechanism 65 is connected with a first conveying belt 66 for conveying the first chassis 70, and the execution end of the second lifting mechanism 64 is connected with a second conveying belt 62 for conveying the second chassis 50;

it should be noted that, in this embodiment, after the 3D print head finishes printing on the top end of the second chassis 50, the second lifting mechanism 42 drives the first chassis 70 located above the second lifting mechanism to descend, at this time, the first conveyor belt 66 is separated from the first chassis 70 without supporting the first chassis 70, so that the first chassis 70 abuts against the transmission assembly 30, and moves towards the direction of the first lifting mechanism 41 through the transmission assembly 30;

further, since the second conveyor belt 62 at the bottom end of the second chassis 50 is connected to the actuating end of the second lifting mechanism 64 at the top end of the base 10, the second lifting mechanism 64 is used to cooperate with the second lifting mechanism 42 at one end of the base 10 to lift the second chassis 50, so that the second lifting mechanism 42 is used to drive the second chassis 50 to lift, and the second chassis 50 is conveyed by the second conveyor belt 62 until the second chassis 50 approaches the first lifting mechanism 41 at the other end of the base 10, in this process, the first chassis 70 is located below the second chassis 50, so that the positions of the first chassis 70 in the second chassis 50 are interchanged, and since the scraper 21 on the scraper frame 20 is close to one side of the first lifting mechanism 41, when the second chassis 50 is far away from the first lifting mechanism 41, the printing material on the second chassis 50 is automatically scraped by the scraper 21.

Specifically, please refer to fig. 1, 2 and 7 again, in another preferred embodiment of the present invention, the transmission assembly 30 includes a third conveyor belt 31 fixed on the top end of the base 10, and a plurality of first limiting baffles 32 fixed on the outer surface of the third conveyor belt 31 and arranged at equal intervals, and a plurality of second limiting baffles 63 fixed on the outer surfaces of the first conveyor belt 66 and the second conveyor belt 62 and arranged at equal intervals;

it should be noted that, in this embodiment, when the third conveyor belt 31 runs, and the first chassis 70 or the second chassis 50 is clamped between two adjacent first limiting baffles 32 on the outer surface of the third conveyor belt 31, the first limiting baffles 32 limit the movement of the first chassis 70 or the second chassis 50, so as to drive the first chassis 70 or the second chassis 50 to perform stable movement;

further, the first conveying belt 66 is made to limit the movement of the first chassis 70 on the first conveying belt 66 by clamping the first chassis 70 between two adjacent second limiting baffles 63 thereon, and drives the first chassis 70 to perform stable translation, and similarly, the second conveying belt 62 drives the second chassis 50 to perform stable movement by the second limiting baffles 63 thereon.

Specifically, please refer to fig. 2, 3 and 4 again, in another preferred embodiment of the present invention, the first lifting mechanism 65 and the second lifting mechanism 64 have the same structure, the second lifting mechanism 64 includes two second air cylinders 642 fixed inside the supporting frame 61, and a bearing frame 641 fixed at the top ends of the second air cylinders 642, the bearing frame 641 is rotatably connected to the second conveying belt 62 through a bearing seat, a plurality of electromagnets 67 fixed on the inner wall of the bearing frame 641 are disposed inside the first conveying belt 66 and the second conveying belt 62, a tensioning wheel 68 is disposed inside the first conveying belt 66 and the second conveying belt 62, and the tensioning wheel 68 is fixed on the inner wall of the bearing frame 641;

it should be noted that, in this embodiment, when the second cylinder 642 drives the bearing frame 641 connected to the piston rod thereof to move, the second conveying belt 62 is fixed on the bearing frame 641, so as to drive the second conveying belt 62 to translate, and further drive the second chassis 50 on the second conveying belt 62 to lift;

further, after the first chassis 70 and the second chassis 50 are conveyed by the first conveyor belt 66 and the second conveyor belt 62 respectively, the electromagnets 67 in the first conveyor belt 66 and the second conveyor belt 62 are used for adsorbing the first chassis 70 and the second chassis 50 so as to align and fix the first chassis 70 and the second chassis 50, so that the movement of the first chassis 70 and the second chassis 50 caused by the influence of an external force is reduced, and the subsequent 3D printing head can print the images;

further, the first conveyor belt 66 and the second conveyor belt 62 are tensioned by the tensioning wheel 68 inside thereof, so that the first conveyor belt 66 and the second conveyor belt 62 are stably moved by the first conveyor belt 66 and the second conveyor belt 62 respectively carrying the first chassis 70 and the second chassis 50 thereon.

Specifically, please refer to fig. 1 and 5 again, in another preferred embodiment of the present invention, a scraper 21 is fixed on one side of the scraper frame 20 close to the first lifting mechanism 41, brush rollers 71 symmetrically arranged are fixed on the lower surfaces of the first chassis 70 and the second chassis 50 through bearing seats, a CCD camera 80 is fixed on the top surface of the supporting frame 61, the first lifting mechanism 41 further includes a sliding plate 412 fixed on the top end of the piston rod of the first cylinder 411, and balls 413 embedded in the top end of the sliding plate 412 and arranged in an array;

note that, in the present embodiment, the doctor holder 20 is caused to automatically scrape off the print formed on the first chassis 70 and the second chassis 50 moved to the second lifting mechanism 42 by the upper blade 21 thereof;

further, when the second chassis 50 moves towards the second lifting mechanism 42 to be staggered with the first chassis 70, the upper surface of the first chassis 70 is cleaned through scraping between the brush roller 71 at the bottom end of the second chassis 50 and the upper surface of the first chassis 70, and in the same way, when the first chassis 70 passes through the second chassis 50, the second chassis 50 is cleaned;

further, the support frame 61 is used for shooting the first chassis 70 and the second chassis 50 through the CCD camera 80, so that the PLC controller connected with the CCD camera 80 can conveniently judge the positions of the first chassis 70 and the second chassis 50, so that the PLC controller can conveniently control the third conveyor belt 31 connected with the PLC controller to operate until the third conveyor belt 31 can accurately clamp the first chassis 70 and the second chassis 50 between two adjacent first limiting baffle plates 32;

further, when the first cylinder 411 pushes the first chassis 70 and the second chassis 50 to ascend and descend, the first chassis 70 and the second chassis 50 are supported by the sliding plate 412, and the sliding plate 412 slides on the first chassis 70 and the second chassis 50 by the balls 413 embedded thereon to reduce dry friction between the first chassis 70 and the second chassis 50 and the sliding plate 412.

The specific operation mode of the invention is as follows:

when the printing platform is used, firstly, the 3D printing head finishes printing on the top end of the second chassis 50, the second lifting mechanism 42 drives the first chassis 70 positioned above the second lifting mechanism to descend, and at this time, the first conveyor belt 66 is separated from the first chassis 70 without supporting the first chassis 70, so that the first chassis 70 abuts against the transmission assembly 30 and moves towards the first lifting mechanism 41 through the transmission assembly 30;

in the process, the first chassis 70 is located below the second chassis 50, so that the positions of the first chassis 70 on the second chassis 50 are interchanged, and since the scraper 21 on the scraper frame 20 is close to one side of the first lifting mechanism 41, when the second chassis 50 is far away from the first lifting mechanism 41, the printed matter on the second chassis 50 is automatically scraped down by the scraper 21.

The invention is described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the above-described embodiments, and it is within the scope of the invention to adopt such insubstantial modifications of the inventive method concept and solution, or to apply the inventive concept and solution directly to other applications without modification.

Claims

1. An exchange type printing platform of an FDM three-dimensional printer comprises a base (10) and is characterized in that a transmission assembly (30), lifting assemblies (40) arranged on two sides of the transmission assembly (30) and a conveying assembly (60) arranged on one side, far away from each other, of the two lifting assemblies (40) are fixed on the upper surface of the base (10), a scraper frame (20) is arranged at the top end of the conveying assembly (60), and a first chassis (70) and a second chassis (50) are abutted to two ends of the conveying assembly (60) respectively;

the lifting assembly (40) comprises first lifting mechanisms (41) arranged on two sides of one end of the transmission assembly (30) and second lifting mechanisms (42) arranged on two sides of the other end of the transmission assembly (30), the first lifting mechanisms (41) and the second lifting mechanisms (42) are identical in structure, and the first lifting mechanisms (41) comprise first air cylinders (411) arranged on two sides of the transmission assembly (30) and fixed on the upper surface of the base (10);

conveying component (60) is including being fixed in support frame (61) of base (10) upper surface is fixed in first elevating system (65) of support frame (61) inside, and locate two second elevating system (64) of one side that first elevating system (65) kept away from each other, the execution end of first elevating system (65) is connected with and is used for carrying first conveyer belt (66) on first chassis (70), the execution end of second elevating system (64) is connected with and is used for carrying second conveyer belt (62) on second chassis (50).

2. The exchangeable printing platform of an FDM three-dimensional printer in claim 1, wherein said transport assembly (30) comprises a third belt (31) attached to the top of said base (10), and a plurality of first position-limiting baffles (32) attached to the outer surface of said third belt (31) and disposed at equal intervals.

3. The exchangeable printing platform of an FDM three-dimensional printer according to claim 1, wherein a plurality of second limit baffles (63) are fixed to the outer surfaces of the first conveyor belt (66) and the second conveyor belt (62) at equal intervals.

4. The exchangeable printing platform of an FDM three-dimensional printer in claim 3, wherein said first lifting mechanism (65) and said second lifting mechanism (64) are identical in structure, and said second lifting mechanism (64) includes two second cylinders (642) fixed inside said supporting frame (61), and a bearing frame (641) fixed on top of said second cylinders (642), and said bearing frame (641) is rotatably connected to said second conveying belt (62) through a bearing seat.

5. The switching printing platform of an FDM three-dimensional printer according to claim 4, wherein the first conveyor belt (66) and the second conveyor belt (62) are each provided with a plurality of electromagnets (67) fixed to the inner wall of the bearing frame (641).

6. The switch printing platform of an FDM three-dimensional printer of claim 5, wherein said first conveyor belt (66) and said second conveyor belt (62) each have a tension wheel (68) disposed therein, and said tension wheels (68) are fixed to an inner wall of said bearing frame (641).

7. The switch print platform of an FDM three dimensional printer in claim 1 wherein a doctor blade (21) is secured to a side of the doctor blade holder (20) adjacent the first lifting mechanism (41).

8. The switch printing platform of the FDM three-dimensional printer, according to claim 1, wherein the symmetrically arranged brush rollers (71) are fixed on the lower surfaces of the first chassis (70) and the second chassis (50) through bearing seats.

9. The switch printing platform of an FDM three-dimensional printer in claim 1, wherein a CCD camera (80) is affixed to the top surface of the support frame (61).

10. The switching printing platform of an FDM three-dimensional printer according to claim 1, wherein said first lifting mechanism (41) further comprises a sliding plate (412) fixed to the top end of the piston rod of said first cylinder (411), and balls (413) embedded in the top end of said sliding plate (412) and arranged in an array.