CN114516170A - Synchronous belt tensioning adjusting device of 3D printer - Google Patents
Synchronous belt tensioning adjusting device of 3D printer Download PDFInfo
- Publication number
- CN114516170A CN114516170A CN202210266091.8A CN202210266091A CN114516170A CN 114516170 A CN114516170 A CN 114516170A CN 202210266091 A CN202210266091 A CN 202210266091A CN 114516170 A CN114516170 A CN 114516170A
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- synchronous belt
- sliding block
- sliding
- adjusting device
- pulling assembly
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/227—Driving means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
Abstract
The invention discloses a synchronous belt tensioning and adjusting device of a 3D printer, which comprises two fixed columns, two idler wheels, a moving assembly, a strain gauge and a synchronous belt, wherein the strain gauge is arranged on the fixed columns; the moving assembly comprises a sliding wheel and a pulling assembly, the sliding wheel is arranged between two idle wheels, and the sliding wheel is in contact with the idle wheels on different side surfaces of the synchronous belt; the pulling assembly is connected with the sliding wheel and pulls the sliding wheel to move so as to adjust the tensioning degree of the synchronous belt; the strain gauge is electrically connected with the pulling assembly. The method has the advantages that the length of the synchronous belt between the two idler wheels is adjusted by the method that the sliding wheels are driven by the pulling assembly to move, the function of adjusting the tensioning degree of the synchronous belt is achieved, the real-time tensioning degree of the synchronous belt is detected through the strain gauge, the tensioning degree of the synchronous belt is automatically adjusted by the translation mode, and accurate adjustment and automatic adjustment of the tensioning degree of the synchronous belt can be achieved.
Description
Technical Field
The invention relates to the field of 3D printing equipment, in particular to a synchronous belt tensioning adjusting device of a 3D printer.
Background
3D Printing full name (3 Dimensional Printing), namely three-Dimensional Printing, is a technology for manufacturing and molding by software control and layering based on a computer three-Dimensional model, and is one additive manufacturing technology. 3D printing technology is typically implemented using digital technology printers. The application object of the 3D printer can be in any industry, and has wide application in medical treatment, construction, automobiles, aerospace and education.
The elasticity condition of hold-in range has important influence to 3D printing quality in the 3D printer. If the synchronous belt is too loose, the surface of the printed product has product lines or product deformation; the over-tight synchronous belt can generate load on a motor shaft, so that the motor shaft is eccentric, and the quality of a printed product is influenced finally.
The existing synchronous belt is fixed in an adjusting device and mainly has two forms, wherein the first form needs to manually tension the synchronous belt and then uses a screw to lock the synchronous belt fixing device; the second way is to use a synchronous belt tensioner, with a hand screwed nut to manually adjust the synchronous belt tightness. Above two kinds of modes all rely on user's experience to judge whether the hold-in range elasticity is suitable, have certain degree of difficulty to the beginner, and the regulation mode is intelligent inadequately.
Disclosure of Invention
The invention provides a synchronous belt tensioning adjusting device of a 3D printer, and aims to solve the problem that the degree of tightness is judged based on experience and cannot be quantized due to manual adjustment of a synchronous belt in the existing 3D printer.
According to the embodiment of the application, the synchronous belt tensioning adjusting device of the 3D printer comprises two fixing columns, two idler wheels, a moving assembly, strain gauges and a synchronous belt, wherein the idler wheels correspond to the fixing columns one by one, and the strain gauges are arranged on the fixing columns; the moving assembly comprises a sliding wheel and a pulling assembly, the sliding wheel is arranged between the two idle wheels, and the sliding wheel is in contact with the idle wheels on different side surfaces of the synchronous belt; the pulling assembly is connected with the sliding wheel and pulls the sliding wheel to move so as to adjust the tensioning degree of the synchronous belt; the strain gauge is electrically connected with the pulling assembly.
Preferably, the pulling assembly comprises a rotating gear, a driven gear, a screw rod, a fixing plate and a sliding block, the rotating gear is meshed with the driven gear, and the screw rod sequentially penetrates through the driven gear, the fixing plate and the sliding block; the sliding wheel is arranged on the sliding block and is rotationally connected with the sliding block; a spring is arranged between the fixed plate and the sliding block and sleeved on the outer peripheral side of the screw rod in the area; the screw rod with driven gear threaded connection, the screw rod with sliding block fixed connection.
Preferably, a micro switch is positioned on the side surface of the fixing plate, a trigger pressing piece extends from the position of the sliding block corresponding to the micro switch, and when the sliding block moves to be close to the fixing plate for a preset distance, the trigger pressing piece is in contact with the micro switch.
Preferably, the pulling assembly further comprises a base, the fixed plate is connected with the base or integrally formed with the base, a sliding groove is formed in the position, corresponding to the sliding block, of the base, and the sliding block moves on the sliding groove.
Preferably, the moving direction of the sliding wheel pulled by the pulling assembly is different from the moving direction of the synchronous belt.
Preferably, the pulling assembly further comprises a motor and a controller, the motor drives the rotating gear, and the controller is electrically connected with the strain gauge and the motor.
Preferably, the timing belt is in contact with the sliding wheel on a side close to the driven gear, and the timing belt is in contact with the idle gear on a side far from the driven gear.
Compared with the prior art, the synchronous belt tensioning adjusting device of the 3D printer provided by the invention has the following beneficial effects:
the sliding wheel is located between the two idler wheels through the arrangement, the sliding wheel is in contact with the idler wheels on different side faces of the synchronous belt, the length of the synchronous belt between the two idler wheels is adjusted through a mode that the sliding wheel is driven by the pulling assembly to move, the function of adjusting the tensioning degree of the synchronous belt is achieved, the method detects the real-time tensioning degree of the synchronous belt through the strain gauge, the tensioning degree of the synchronous belt is automatically adjusted through a translation mode, and accurate adjustment and automatic adjustment of the tensioning degree of the synchronous belt can be achieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a synchronous belt tension adjusting device of a 3D printer according to a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of another angle of a synchronous belt tension adjusting device of a 3D printer according to a first embodiment of the present invention.
Fig. 3 is a schematic plan view illustrating a top view angle of a synchronous belt tension adjusting device of a 3D printer according to a first embodiment of the present invention.
Description of the reference symbols:
1. fixing the column;
2. an idler pulley;
3. a moving assembly; 31. a sliding wheel; 32. a pulling assembly; 321. a rotating gear; 322. a driven gear; 323. a screw; 324. a fixing plate; 325. a slider; 326. a base;
4. a strain gauge; 5. a synchronous belt;
100. a spring; 200. a microswitch; 300. triggering the tabletting; 400. an electric motor.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items and includes such combinations.
Referring to fig. 1, 2 and 3, a first embodiment of the present invention discloses a synchronous belt tensioning adjustment device for a 3D printer, including two fixed columns 1, two idler pulleys 2, a moving assembly 3, strain gauges 4 and a synchronous belt 5, where the idler pulleys 2 correspond to the fixed columns 1 one by one, and the strain gauges 4 are disposed on the fixed columns 1.
The moving assembly 3 includes a sliding wheel 31 and a pulling assembly 32, the sliding wheel 31 is disposed between the two idle wheels 2, and the sliding wheel 31 contacts the idle wheels 2 at different sides of the synchronous belt 5.
The idle wheel 2 is rotatably connected with the fixed column 1, when the synchronous belt 5 is tensioned under the action of the sliding wheel 31, the idle wheel 2 is stressed, the stressed idle wheel 2 enables the fixed column 1 to slightly deform, the deformation can be detected based on the strain gauge 4, the strain gauge 4 is electrically connected with the pulling assembly 32, the detection data detected by the strain gauge 4 is sent to the pulling assembly 32, and the pulling assembly 32 automatically controls the sliding direction and distance of the sliding wheel 31 based on a preset reference value. For example, in the present embodiment, the strain gauge is a common foil-type strain gauge, and when a conductor or a semiconductor material of the strain gauge is mechanically deformed under an external force, a resistance value of the strain gauge changes accordingly, in the present embodiment, a plurality of types of foil-type strain gauges, such as BX120-3AA, BE120-3AA, and BF350-3AA, are used, that is, the strain condition of the current synchronous belt 5 can BE obtained by detecting the stress condition of the fixed column 1 through the strain gauge 4.
It can be understood that the direction of the sliding wheel 31 pulled by the pulling assembly 32 is different from the moving direction of the synchronous belt 5, specifically, the pulling assembly 32 drives the sliding wheel 31 to move in the same plane and perpendicular to the moving direction of the synchronous belt 5. For example, as shown in fig. 3, the direction a is the moving direction of the timing belt 5, and the direction b is the moving direction of the sliding wheel 31, since the sliding wheel 31 is disposed between the two idle wheels 2, and the side surfaces of the sliding wheel 31 and the idle wheels 2 contacting the timing belt 5 are different, the sliding wheel 31 can adjust the length of the area of the timing belt 5 between the two idle wheels 2 when moving, and thus adjust the tension of the timing belt 5.
It is understood that the pulling assembly 32 may be provided with a pushing or pulling structure based on an air cylinder, a screw transmission, etc. to directly pull the sliding wheel 31 to move in the above-mentioned direction, for example, the air cylinder is provided to be connected with the sliding wheel 31, the sliding wheel 31 is driven to slide by the expansion and contraction of the air cylinder, or a mechanical arm, a transmission shaft, etc. may also be provided to directly drive the sliding wheel 31 to slide along a predetermined direction.
With continuing reference to fig. 1, fig. 2 and fig. 3, in the present embodiment, the pulling assembly 32 includes a rotating gear 321, a driven gear 322, a screw 323, a fixing plate 324 and a sliding block 325, the rotating gear 321 is engaged with the driven gear 322, and the screw 323 sequentially passes through the driven gear 322, the fixing plate 324 and the sliding block 325.
The sliding wheel 31 is disposed on the sliding block 325, and the sliding wheel 31 is rotationally connected with the sliding block 325, that is, the sliding wheel 31 slides under the driving of the sliding block 325, and meanwhile, the sliding wheel 31 rotates on the sliding block 325 under the pulling of the synchronous belt 5.
A spring 100 is disposed between the fixed plate 324 and the sliding block 325, the spring 100 is sleeved on the outer periphery of the region of the screw 323, and the fixed plate 324 and the sliding block 325 are located at two ends of the spring 100 to press the spring 100. The screw 323 is in threaded connection with the driven gear 322, and the screw 323 is fixedly connected with the sliding block 325.
When the spring is used, the rotating gear 321 drives the driven gear 322 to rotate, the screw 323 is fixed by the sliding block 325, so that the screw 323 pulls the sliding block 325 to move under the transmission of the threads, and meanwhile, the fixed plate 324 and the sliding block 325 press two ends of the spring 100, so that the driven gear 322 keeps a relative position and contacts with the fixed plate 324, namely, the driven gear 322 does not displace when rotating.
With continuing reference to fig. 1, fig. 2 and fig. 3, the pulling assembly 32 further includes a base 326, the fixing plate 324 is connected to or integrally formed with the base 326, a sliding slot is formed in the base 326 corresponding to the sliding block 325, and the sliding block 325 moves on the sliding slot.
Optionally, as an embodiment, the sliding slot on the base 326 is provided with a stop at an end away from the driven gear 322 to prevent the sliding block 325 from sliding out of the sliding slot.
Optionally, with continuing reference to fig. 1 and fig. 2, as another embodiment, a micro switch 200 is positioned on a side surface of the fixed plate 324, a trigger pressing plate 300 is extended from the sliding block 325 at a position corresponding to the micro switch 200, and when the sliding block 325 moves close to the fixed plate 324 by a predetermined distance, the trigger pressing plate 300 contacts with the micro switch 200. The preset distance is set to a distance corresponding to the maximum pressure applied to the spring 100.
It will be appreciated that the microswitch 200 is a common microswitch, such as: d2FC-F-7N/D2FC-FL-NH or D2FC-F-K, etc., the micro switch 200 generates an electrical signal when being contacted by the trigger pad 300, and informs the user that the maximum distance of movement of the slider 325 has been reached currently.
Optionally, as an embodiment, the pulling assembly 32 further includes a motor 400 and a controller, the motor 400 drives the rotating gear 321 to rotate, the controller is electrically connected to the strain gauge 4 and the motor 400, the controller is configured to receive detection data of the strain gauge 4, compare the detection data with preset data, and drive the rotating gear 321 to rotate by the automatic control motor, so as to achieve a real-time adjusting function of automatically controlling the tensioning degree of the synchronous belt 5. The controller can be arranged as a main control board.
For example, in this embodiment, when the synchronous belt 5 is released or not installed, the controller detects that the tension value of the synchronous belt 5 is smaller than the reference value, and drives the sliding wheel 31 to tighten the synchronous belt 5, but since the synchronous belt 5 is released or not installed, the synchronous belt 5 cannot be tightened, and when the pressing piece 300 on the sliding block 325 is triggered to contact the microswitch 200, an alarm is triggered, which prompts to check whether the synchronous belt 5 is released or not installed.
It is understood that, in this embodiment, the timing belt 5 is in contact with the sliding wheel 31 on the side close to the driven gear 322, and the timing belt 5 is in contact with the idle gear 2 on the side far from the driven gear 322. Or in some other embodiments, the above-mentioned contact manner may be reversed, and is not described herein again.
It can be understood that the detection time of the device provided by the invention for detecting the tensioning degree of the synchronous belt 5 is before the 3D printer starts printing, and in the printing process, the function is in a suppression state, so as to ensure that the printing process is not influenced.
Compared with the prior art, the synchronous belt tensioning adjusting device of the 3D printer provided by the invention has the following beneficial effects:
the sliding wheel is located between the two idler wheels through the arrangement, the sliding wheel is in contact with the idler wheels on different side faces of the synchronous belt, the length of the synchronous belt between the two idler wheels is adjusted through a mode that the sliding wheel is driven by the pulling assembly to move, the function of adjusting the tensioning degree of the synchronous belt is achieved, the method detects the real-time tensioning degree of the synchronous belt through the strain gauge, the tensioning degree of the synchronous belt is automatically adjusted through a translation mode, and accurate adjustment and automatic adjustment of the tensioning degree of the synchronous belt can be achieved.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (7)
1. The synchronous belt tensioning adjusting device of the 3D printer is characterized by comprising two fixed columns, two idler wheels, a moving assembly, strain gauges and a synchronous belt, wherein the idler wheels correspond to the fixed columns one by one, and the strain gauges are arranged on the fixed columns;
the moving assembly comprises a sliding wheel and a pulling assembly, the sliding wheel is arranged between the two idle wheels, and the sliding wheel is in contact with the idle wheels on different side surfaces of the synchronous belt;
the pulling assembly is connected with the sliding wheel and pulls the sliding wheel to move so as to adjust the tensioning degree of the synchronous belt;
the strain gauge is electrically connected with the pulling assembly.
2. The synchronous belt tensioning adjusting device of the 3D printer as claimed in claim 1, wherein: the pulling assembly comprises a rotating gear, a driven gear, a screw rod, a fixing plate and a sliding block, the rotating gear is meshed with the driven gear, and the screw rod sequentially penetrates through the driven gear, the fixing plate and the sliding block;
The sliding wheel is arranged on the sliding block and is rotationally connected with the sliding block;
a spring is arranged between the fixed plate and the sliding block and sleeved on the outer peripheral side of the screw rod in the area;
the screw rod with driven gear threaded connection, the screw rod with the sliding block fixed connection.
3. The synchronous belt tension adjusting device of the 3D printer according to claim 2, characterized in that: the side surface of the fixed plate is provided with a microswitch, the sliding block extends to be provided with a trigger pressing sheet at the position corresponding to the microswitch, and when the sliding block moves to be close to the fixed plate for a preset distance, the trigger pressing sheet is contacted with the microswitch.
4. The synchronous belt tension adjusting device of the 3D printer according to claim 2, characterized in that: the pulling assembly further comprises a base, the fixed plate is connected with the base or integrally formed, a sliding groove is formed in the position, corresponding to the sliding block, of the base, and the sliding block moves on the sliding groove.
5. The synchronous belt tensioning adjusting device of the 3D printer as claimed in claim 2, wherein: the moving direction of the sliding wheel pulled by the pulling assembly is different from the moving direction of the synchronous belt.
6. The synchronous belt tension adjusting device of the 3D printer according to claim 2, characterized in that: the pulling assembly further comprises a motor and a controller, the motor drives the rotating gear, and the controller is electrically connected with the strain gauge and the motor.
7. The synchronous belt tension adjusting device of the 3D printer according to any one of claims 2-6, wherein: the synchronous belt is close to with the movable pulley driven gear side contact, the synchronous belt with the idler is keeping away from driven gear side contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210266091.8A CN114516170A (en) | 2022-03-17 | 2022-03-17 | Synchronous belt tensioning adjusting device of 3D printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210266091.8A CN114516170A (en) | 2022-03-17 | 2022-03-17 | Synchronous belt tensioning adjusting device of 3D printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114516170A true CN114516170A (en) | 2022-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210266091.8A Pending CN114516170A (en) | 2022-03-17 | 2022-03-17 | Synchronous belt tensioning adjusting device of 3D printer |
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| CN (1) | CN114516170A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114946347A (en) * | 2022-06-30 | 2022-08-30 | 兰剑智能科技股份有限公司 | Seedling picking and supplementing device, equipment and method for plant planting plate |
-
2022
- 2022-03-17 CN CN202210266091.8A patent/CN114516170A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114946347A (en) * | 2022-06-30 | 2022-08-30 | 兰剑智能科技股份有限公司 | Seedling picking and supplementing device, equipment and method for plant planting plate |
| CN114946347B (en) * | 2022-06-30 | 2024-05-03 | 兰剑智能科技股份有限公司 | Seedling picking and supplementing device, equipment and method for plant planting plate |
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