CN209832615U - Scraper transmission mechanism for 3D printer - Google Patents
Scraper transmission mechanism for 3D printer Download PDFInfo
- Publication number
- CN209832615U CN209832615U CN201920304907.5U CN201920304907U CN209832615U CN 209832615 U CN209832615 U CN 209832615U CN 201920304907 U CN201920304907 U CN 201920304907U CN 209832615 U CN209832615 U CN 209832615U
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- China
- Prior art keywords
- driving wheel
- rear plate
- driven wheel
- connecting block
- block
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- 230000007246 mechanism Effects 0.000 title claims abstract description 23
- 230000005540 biological transmission Effects 0.000 title claims abstract description 6
- 238000007789 sealing Methods 0.000 claims abstract description 37
- 230000001360 synchronised effect Effects 0.000 claims abstract description 25
- 238000003825 pressing Methods 0.000 claims description 6
- 239000000843 powder Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000110 selective laser sintering Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Abstract
The utility model discloses a scraper transmission mechanism for a 3D printer, a driving wheel and a driven wheel are arranged on a back plate along the horizontal direction, and both the driving wheel and the driven wheel can rotate by taking the axis vertical to the back plate as an axis, and a synchronous belt sleeve is arranged on the driving wheel and the driven wheel; a first connecting block is arranged on the rear plate below the driving wheel, a second connecting block is arranged on the rear plate below the driven wheel, rollers capable of rotating by taking a vertical axis as a shaft are respectively arranged on the first connecting block and the second connecting block, and a sealing belt is sleeved on the two rollers; one end of the connecting frame is fixedly connected to the bottom side of the synchronous belt, and the other end of the connecting frame is fixedly connected to one side of the sealing belt, which is far away from the back plate; wherein, the rotation of the synchronous belt drives the connecting block to move horizontally along the motion direction of the sealing belt. This a scraper drive mechanism for 3D printer can drive the scraper and be located horizontal direction upper left and right side and move.
Description
Technical Field
The utility model relates to a scraper drive mechanism for 3D printer.
Background
The 3D printer is also called a three-dimensional printer, which is a machine of an additive manufacturing technology, i.e., a rapid prototyping technology. The SLS (selective Laser sintering) selective Laser sintering technology adopts Laser to selectively sinter fixed powder layer by layer, and enables the sintered and molded solidified layers to be superposed layer by layer to generate parts with required shapes. The whole process comprises the steps of model establishment, data processing, powder laying, sintering, post-processing and the like. The whole process device consists of a powder cylinder and a forming cylinder, a piston (powder feeding piston) of the powder cylinder rises during working, a layer of powder is uniformly paved on the piston (working piston) of the forming cylinder by a powder paving roller, and a computer controls a two-dimensional scanning track of a laser beam according to a slice model of a prototype and selectively sinters solid powder materials to form one layer of a part. After the powder is finished by one layer, the working piston descends by one layer thickness, and the powder paving system paves new powder. The laser beam is controlled to scan again to sinter the new layer. And repeating the steps repeatedly in such a way, and overlapping layer by layer until the three-dimensional part is molded. Therefore, it is important to design an effective scraper driving mechanism for the left and right reciprocating movement of the scraper.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a scraper drive mechanism for 3D printer, this a scraper drive mechanism for 3D printer can drive the scraper and be located the horizontal direction and move about, right side.
In order to achieve the above object, the utility model provides a scraper drive mechanism for 3D printer, this scraper drive mechanism includes: the device comprises a back plate, a synchronous belt, a sealing belt, a driving wheel, a driven wheel and a connecting frame; the driving wheel and the driven wheel are arranged on the rear plate in a horizontal direction, the driving wheel and the driven wheel can rotate by taking an axis perpendicular to the rear plate as an axis, and the synchronous belt is sleeved on the driving wheel and the driven wheel; a first connecting block is arranged on the rear plate below the driving wheel, a second connecting block is arranged on the rear plate below the driven wheel, rollers capable of rotating by taking a vertical axis as an axis are respectively arranged on the first connecting block and the second connecting block, and the two rollers are sleeved with a sealing belt; one end of the connecting frame is fixedly connected to the bottom side of the synchronous belt, and the other end of the connecting frame is fixedly connected to one side, away from the rear plate, of the sealing belt; wherein, the rotation of the synchronous belt drives the connecting block to move horizontally along the movement direction of the sealing belt.
Preferably, at least one horizontal guide rail is arranged on the rear plate, a sliding block corresponding to the horizontal guide rail is arranged at one end, facing the rear plate, of the connecting frame, and the sliding block can be horizontally clamped on the horizontal guide rail in a sliding manner.
Preferably, the connection frame includes: the sliding plate is fixedly connected to one end, facing the rear plate, of the fixing frame, and the sliding block is fixedly connected to the sliding plate; the top of the sliding plate is fixedly connected with an angle bracket at one side back to the rear plate, a pressing sheet is detachably arranged on the angle bracket, and the bottom side of the synchronous belt is fixed on the angle bracket through the pressing sheet.
Preferably, the fixing frame is an i-shaped frame, two sides of the i-shaped frame in the vertical direction are recessed inwards, one sealing strip is arranged at each of the upper end and the lower end of the i-shaped frame, and one side of each sealing strip, which is far away from the rear plate, is fixedly connected to the i-shaped frame.
Preferably, the rear plate is provided with two switch mounting brackets between the driving wheel and the driven wheel, the switch mounting brackets are provided with proximity switches, and the top of the sliding plate is provided with a trigger block corresponding to the proximity switches.
Preferably, a servo motor is arranged on the back surface of the back plate, and a shaft body of the servo motor penetrates through the back plate and is inserted and fixed to the driving wheel so as to drive the driving wheel to rotate.
Preferably, a tensioning block for mounting the driven wheel is arranged on the rear plate, a rotating shaft is arranged on the tensioning block, and the driven wheel can be sleeved on the rotating shaft in a self-rotating manner.
Preferably, a plurality of first horizontal bar-shaped holes are formed in the tensioning block in the vertical direction, and a plurality of first positioning threaded columns corresponding to the first horizontal bar-shaped holes are formed in the rear plate.
Preferably, a plurality of second horizontal bar-shaped holes are formed in the second connecting block in the vertical direction, and a plurality of second positioning threaded columns corresponding to the second horizontal bar-shaped holes are arranged on the rear plate.
According to the above technical scheme, in the utility model, the driving wheel and the driven wheel are arranged on the back plate along the horizontal direction, and both the driving wheel and the driven wheel can rotate by taking the axis perpendicular to the back plate as an axis, and the synchronous belt is sleeved on the driving wheel and the driven wheel; a first connecting block is arranged on the rear plate below the driving wheel, a second connecting block is arranged on the rear plate below the driven wheel, rollers capable of rotating by taking a vertical axis as an axis are respectively arranged on the first connecting block and the second connecting block, and the two rollers are sleeved with a sealing belt; one end of the connecting frame is fixedly connected to the bottom side of the synchronous belt, and the other end of the connecting frame is fixedly connected to one side, away from the rear plate, of the sealing belt; wherein, the rotation of the synchronous belt drives the connecting block to move horizontally along the movement direction of the sealing belt. The method specifically comprises the following steps: the action wheel rotates, it is driven from the driving wheel, it rotates to drive the hold-in range, the hold-in range rotates and drives the link left and right, and the scraper is installed in the tip of link, consequently, can drive moving about of scraper, consider the link and remove the stability problem of in-process, fix the link on one side that the back plate was kept away from to the sealing tape, the sealing tape rotates along with the removal of link, the cylinder plays supplementary sealing tape pivoted effect, consequently, the link is in a left side, stability is promoted when moving on the right side.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of the overall structure of a preferred embodiment of the present invention, a doctor blade drive mechanism;
fig. 2 is a partial schematic structure diagram of a preferred embodiment of the middle scraper driving mechanism of the present invention.
Description of the reference numerals
1 tensioning block 2 rear plate
3 driving wheel 4 driven wheel
5 synchronous belt 6 switch mounting rack
7 trigger block 8 approach switch
9 first connecting block of servo motor 10
11 second connecting block 12 roller
13 tabletting and 14 sealing tape
15 fixed frame 16 horizontal guide rail
17 slide plate 18 slide block
19 corner rack
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
In the present invention, unless otherwise specified, the terms "upper, lower, left, right, front, rear, inner, and outer" and the like included in the terms refer to the orientation of the terms in the normal use state or the common names understood by those skilled in the art, and should not be construed as limiting the terms.
Referring to fig. 1-2, a blade drive mechanism for a 3D printer includes: the device comprises a back plate 2, a synchronous belt 5, a sealing belt 14, a driving wheel 3, a driven wheel 4 and a connecting frame; the driving wheel 3 and the driven wheel 4 are arranged on the rear plate 2 in a horizontal direction, the driving wheel 3 and the driven wheel 4 can rotate by taking an axis perpendicular to the rear plate 2 as an axis, and the synchronous belt 5 is sleeved on the driving wheel 3 and the driven wheel 4; a first connecting block 10 is arranged on the rear plate 2 below the driving wheel 3, a second connecting block 11 is arranged on the rear plate 2 below the driven wheel 4, a roller 12 capable of rotating by taking a vertical axis as an axis is respectively arranged on the first connecting block 10 and the second connecting block 11, and the two rollers 12 are sleeved with a sealing belt 14; one end of the connecting frame is fixedly connected to the bottom side of the synchronous belt 5, and the other end of the connecting frame is fixedly connected to one side, away from the rear plate 2, of the sealing belt 14; wherein, the rotation of the synchronous belt 5 drives the connecting block to move horizontally along the moving direction of the sealing belt 14.
Through the implementation of the technical scheme, the driving wheel 3 and the driven wheel 4 are arranged on the rear plate 2 in a horizontal direction, the driving wheel 3 and the driven wheel 4 can rotate by taking an axis perpendicular to the rear plate 2 as an axis, and the synchronous belt 5 is sleeved on the driving wheel 3 and the driven wheel 4; a first connecting block 10 is arranged on the rear plate 2 below the driving wheel 3, a second connecting block 11 is arranged on the rear plate 2 below the driven wheel 4, a roller 12 capable of rotating by taking a vertical axis as an axis is respectively arranged on the first connecting block 10 and the second connecting block 11, and the two rollers 12 are sleeved with a sealing belt 14; one end of the connecting frame is fixedly connected to the bottom side of the synchronous belt 5, and the other end of the connecting frame is fixedly connected to one side, away from the rear plate 2, of the sealing belt 14; wherein, the rotation of the synchronous belt 5 drives the connecting block to move horizontally along the moving direction of the sealing belt 14. The method specifically comprises the following steps: action wheel 3 rotates, it is driven from driving wheel 4, it rotates to drive hold-in range 5, hold-in range 5 rotates and drives the link left side, the right side removes, and the scraper is installed in the tip of link, consequently, can drive the removal of scraper and remove, consider the stability problem of link removal in-process, fix the link on one side that sealing strip 14 kept away from back plate 2, sealing strip 14 rotates along with the removal of link, cylinder 12 plays the effect of supplementary sealing strip 14 pivoted, consequently, the link is left, stability obtains promoting when the right side removes.
In this embodiment, in order to further improve the stability of the movement of the connecting frame, it is preferable that at least one horizontal guide rail 16 is provided on the rear plate 2, a slider 18 corresponding to the horizontal guide rail 16 is provided on one end of the connecting frame facing the rear plate 2, and the slider 18 is horizontally slidably engaged with the horizontal guide rail 16.
In this embodiment, the structure of the connection frame may be selected within a wide range in the art, and in order to further provide a structure of the connection frame that facilitates the installation with the peripheral component, preferably, the connection frame includes: the sliding plate 17 is fixedly connected to one end, facing the rear plate 2, of the fixed frame 15, and the sliding block 18 is fixedly connected to the sliding plate 17; an angle bracket 19 is fixedly connected to one side of the top of the sliding plate 17, which faces away from the rear plate 2, a pressing sheet 13 is detachably arranged on the angle bracket 19, and the bottom side of the synchronous belt 5 is fixed on the angle bracket 19 through the pressing sheet 13.
In this embodiment, in order that the fixing frame 15 does not affect the rotation of the sealing strips 14, preferably, the fixing frame 15 is a i-shaped frame, the i-shaped frame is recessed inwards along two sides in the vertical direction, one sealing strip 14 is respectively arranged at the upper end and the lower end of the i-shaped frame, and one side of two sealing strips 14 away from the back plate 2 is fixedly connected to the i-shaped frame.
In this embodiment, for convenience of automatic control, preferably, two switch mounting frames 6 are disposed on the rear plate 2 between the driving wheel 3 and the driven wheel 4, a proximity switch 8 is disposed on the switch mounting frame 6, and a trigger block 7 corresponding to the proximity switch 8 is disposed on the top of the sliding plate 17. Two proximity switches 8 are arranged in a certain travel distance, and the corresponding trigger block 7 is matched to control the start and stop or positive and negative rotation of the driving wheel 3. The driving wheel 3 is prevented from continuously keeping one direction to rotate and then colliding the connecting frame to other parts.
In this embodiment, in order to further provide a power for driving the driving wheel 3 to rotate, it is preferable that a servo motor 9 is disposed on the back surface of the back plate 2, and a shaft body of the servo motor penetrates through the back plate 2 and is inserted and fixed to the driving wheel 3 to drive the driving wheel 3 to rotate.
In this embodiment, in order to further provide a structure for mounting the driven wheel 4, it is preferable that the rear plate 2 is provided with a tension block 1 for mounting the driven wheel 4, the tension block 1 is provided with a rotating shaft, and the driven wheel 4 is rotatably fitted on the rotating shaft.
In this embodiment, because the degree of tightness of hold-in range 5 differs, in order to adjust the elasticity condition of hold-in range 5 conveniently, preferably, be provided with a plurality of first horizontal bar holes along vertical direction on tensioning block 1, be provided with a plurality of first location threaded columns that correspond to first horizontal bar hole on the back plate 2. Move tensioning block 1 through the effect until hold-in range 5 have when suitable rate of tension with first location screw thread post cover establish corresponding nut fixed.
In this embodiment, in order to adjust the tightness of the sealing tape 14, it is preferable that a plurality of second horizontal holes are vertically formed in the second connecting block 11, and a plurality of second positioning threaded posts corresponding to the second horizontal holes are formed in the back plate 2. The second connecting block 11 is moved by action until the sealing band 14 has the appropriate tightness and the second positioning threaded stud is fixed by the corresponding nut. In order to conveniently install the roller, the first connecting block 10 and the second connecting block 11 are both provided with U-shaped openings, and the openings of the U-shaped openings are back to the rear plate 2.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features.
In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.
Claims (9)
1. A scraper drive mechanism for a 3D printer, the scraper drive mechanism comprising: the device comprises a rear plate (2), a synchronous belt (5), a sealing belt (14), a driving wheel (3), a driven wheel (4) and a connecting frame;
the driving wheel (3) and the driven wheel (4) are arranged on the rear plate (2) in a horizontal direction, the driving wheel (3) and the driven wheel (4) can rotate by taking an axis perpendicular to the rear plate (2) as an axis, and the synchronous belt (5) is sleeved on the driving wheel (3) and the driven wheel (4);
a first connecting block (10) is arranged on the rear plate (2) and below the driving wheel (3), a second connecting block (11) is arranged on the rear plate (2) and below the driven wheel (4), rollers (12) capable of rotating by taking a vertical axis as an axis are respectively arranged on the first connecting block (10) and the second connecting block (11), and the two rollers (12) are sleeved with a sealing belt (14);
one end of the connecting frame is fixedly connected to the bottom side of the synchronous belt (5), and the other end of the connecting frame is fixedly connected to one side, away from the rear plate (2), of the sealing belt (14); wherein the rotation of the synchronous belt (5) drives the connecting block to move horizontally along the movement direction of the sealing belt (14).
2. The doctor blade mechanism for 3D printers according to claim 1, characterized in that the back plate (2) is provided with at least one horizontal guide rail (16), and the end of the connecting frame facing the back plate (2) is provided with a slide block (18) corresponding to the horizontal guide rail (16), the slide block (18) being horizontally slidably clamped on the horizontal guide rail (16).
3. The doctor blade drive mechanism for a 3D printer according to claim 2, wherein the connecting frame includes: the sliding plate (17) is fixedly connected to one end, facing the rear plate (2), of the fixing frame (15), and the sliding block (18) is fixedly connected to the sliding plate (17);
an angle bracket (19) is fixedly connected to one side, back to the rear plate (2), of the top of the sliding plate (17), a pressing sheet (13) is detachably arranged on the angle bracket (19), and the bottom side of the synchronous belt (5) is fixed on the angle bracket (19) through the pressing sheet (13).
4. The doctor blade driving mechanism for 3D printer according to claim 3, wherein the fixing frame (15) is a i-shaped frame, the i-shaped frame is recessed inward along two sides in the vertical direction, one sealing strip (14) is respectively arranged at the upper and lower ends of the i-shaped frame, and one side of two sealing strips (14) far away from the back plate (2) is fixedly connected to the i-shaped frame.
5. The scraper drive mechanism for 3D printers according to claim 3 or 4, characterized in that two switch mounting brackets (6) are arranged on the back plate (2) between the driving wheel (3) and the driven wheel (4), a proximity switch (8) is arranged on the switch mounting brackets (6), and a trigger block (7) corresponding to the proximity switch (8) is arranged on the top of the sliding plate (17).
6. The scraper transmission mechanism for 3D printer according to claim 1 is characterized in that a servo motor (9) is arranged on the back surface of the back plate (2), and the shaft body of the servo motor penetrates through the back plate (2) and is inserted and fixed in the driving wheel (3) to drive the driving wheel (3) to rotate.
7. The scraper transmission mechanism for 3D printer according to claim 1, characterized in that the rear plate (2) is provided with a tension block (1) for installing the driven wheel (4), the tension block (1) is provided with a rotating shaft, and the driven wheel (4) can be sleeved on the rotating shaft in a self-rotating manner.
8. The doctor blade mechanism for 3D printers according to claim 7, wherein the tensioning block (1) is provided with a plurality of first horizontal bar holes in the vertical direction, and the back plate (2) is provided with a plurality of first positioning threaded columns corresponding to the first horizontal bar holes.
9. The doctor blade transmission mechanism for 3D printer according to claim 1, characterized in that the second connecting block (11) is provided with a plurality of second horizontal bar-shaped holes along the vertical direction, and the back plate (2) is provided with a plurality of second positioning threaded columns corresponding to the second horizontal bar-shaped holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920304907.5U CN209832615U (en) | 2019-03-12 | 2019-03-12 | Scraper transmission mechanism for 3D printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920304907.5U CN209832615U (en) | 2019-03-12 | 2019-03-12 | Scraper transmission mechanism for 3D printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209832615U true CN209832615U (en) | 2019-12-24 |
Family
ID=68905875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920304907.5U Expired - Fee Related CN209832615U (en) | 2019-03-12 | 2019-03-12 | Scraper transmission mechanism for 3D printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209832615U (en) |
-
2019
- 2019-03-12 CN CN201920304907.5U patent/CN209832615U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191224 |