Multi-nozzle calibration mechanism of 3D printer
By designing a multi-spray calibration mechanism, using V-shaped calibration method and fill light, the multi-spray calibration accuracy and stability problems in the prior art are solved, and a higher calibration accuracy and convenient maintenance process is achieved.
Patent Information
- Application Number
- CN202411462996.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-20
- Publication Date
- 2024-12-31
AI Technical Summary
In the existing 3D printing technology, the multi-tip calibration process relies on manual operation and software control, and the lack of reference reference and support, making it difficult to ensure accuracy, especially when V-shaped debugging, there is no support.
A multi-spray head calibration mechanism including mounting frame, calibration plate, clamp, test plate, adjustment clamp and fill light is designed. By adjusting the angle of the collet and fill light lighting, a V-shaped calibration method is realized to provide stability. and easy to clean and replace with removable test boards and lock bolts.
It improves the accuracy and stability of nozzle calibration, reduces the shape and size of printed objects affected by external factors, observes the thickness of the spray by light and dark, facilitates intuitive viewing of printing results, and simplifies the calibration and maintenance process.
Smart Images
Figure CN119217713A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of 3D printers, and in particular to a 3D printer multi-nozzle calibration mechanism. Background Art
[0002] 3D printing technology has developed rapidly due to its many advantages over existing subtractive processing technology, and the precise calibration process of the nozzle before printing is an important prerequisite for the high stability and high precision of 3D printing technology. In the existing technology, the calibration process of dual nozzles or multi-nozzles is generally manual calibration with software control calibration, and sometimes the nozzle end needs to be fixed with corresponding calibration components, which requires high experience of the operator and still cannot meet the precise customization requirements; and there is no reference benchmark and reference object during the debugging process, and there is no support object to support the model during V-shaped debugging. For this reason, we propose a 3D printer multi-nozzle calibration mechanism. Summary of the invention
[0003] The purpose of the present invention is to provide a 3D printer multi-nozzle calibration mechanism to solve the problems raised in the above background technology.
[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: a 3D printer multi-nozzle calibration mechanism, comprising a mounting frame and a calibration plate; The mounting frame includes a return frame and a transverse sliding frame, the sliding frame is provided with a double nozzle, and a calibration plate is provided at the bottom of the return frame, and the calibration plate is provided below the double nozzle; The calibration plate comprises a clamping plate and a test plate, a fill light and an adjustment clamp are arranged on the top of the test plate, and the adjustment clamp is composed of equidistantly arranged clamps, and the clamps extend along the width of the test plate; A pull rod is connected between the adjacent clamps, and the pull rod is fixed on the clamping piece below. A handle is fixed on the right side of the rightmost clamp; An adjustment mechanism is provided at the bottom of the calibration plate, and the adjustment mechanism includes an adjustment plate and an adjustment knob. The adjustment plate is provided at the bottom of the calibration plate, and the adjustment plate is fixed on the return frame. The four corners of the adjustment plate are screwed with adjustment knobs, and the adjustment knobs are screwed upward to the bottom of the calibration plate.
[0005] Preferably, the sandwiching plates include two left and right sandwiching plates, and the test plate is arranged in the middle of the two sandwiching plates.
[0006] Preferably, extension plates are provided on both sides of the test plate, and the extension plates are inserted into the inner cavity of the clamping plate; symmetrical locking bolts are provided at the bottom of the clamping plate, and the locking bolts are screwed upward into the extension plates.
[0007] Preferably, the fill light is arranged below the adjustment clip, and the adjustment clip is a transparent acrylic plate.
[0008] Preferably, any of the chucks is composed of two clips, both ends of the clips are provided with rotating shafts, and the two ends of the clips are rotatably connected to the test plate through the rotating shafts, and a rotating shaft is also provided between two adjacent clips, and the rotating shaft there does not contact the test plate.
[0009] Preferably, a shock-absorbing spring is sleeved on the top of the adjusting knob, and the shock-absorbing spring abuts between the adjusting plate and the calibration plate.
[0010] Preferably, a ruler is provided on one side of the rear clamping plate close to the test plate, the ruler is a millimeter ruler, and extends along the width of the test plate.
[0011] Compared with the prior art, the present invention has the following beneficial effects: This solution adopts a V-shaped calibration method when in use. The adjustment clamp can be used as a good reference. The angle of the chuck can be adjusted to 60°, so that the angle of the chuck can be freely adjusted between the horizontal level and 60°; at the same time, the shell of the chuck can be used as a support to provide the necessary stability and reduce the influence of external factors on the shape and size of the printed object; a fill light is arranged on the top surface of the test board, and the fill light illuminates the printed object above. The thickness of the spray coating of the printed object can be observed through the brightness of the light, so as to facilitate intuitive viewing of the printing results; the test board and the clamping plate can be detachably installed and docked through the locking bolts at the bottom. After the test is completed, the normal panel can be replaced and fixed between the clamping plates again; the detachable test board is convenient for cleaning and replacement of accessories. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is the front view of the present invention; Figure 2 For the present invention Figure 1 A partial schematic diagram of Figure 3 A top view of the calibration plate of the present invention; Figure 4 A bottom view of the calibration plate of the present invention; Figure 5 It is a schematic diagram of the adjustment clip of the present invention.
[0013] In the figure: 1 mounting frame; 2 double nozzles; 3 calibration plate; 4 adjustment plate; 5 adjustment knob; 6 adjustment bolt; 7 clamping plate; 8 test plate; 9 ruler; 10 fill light; 11 adjustment clamp; 12 locking bolt; 13 clamp; 14 pull rod; 15 handle. DETAILED DESCRIPTION
[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0015] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Example
[0016] See also Figure 1-5 , the present invention provides a technical solution for a 3D printer multi-nozzle calibration mechanism: comprising a mounting frame 1 and a calibration plate 3; The mounting frame 1 includes a return frame and a transverse sliding frame, a double nozzle 2 is arranged on the sliding frame, a calibration plate 3 is arranged at the bottom of the return frame, and the calibration plate 3 is arranged below the double nozzle 2; The calibration plate 3 includes a clamping plate 7 and a test plate 8. The clamping plate 7 includes two left and right plates. The test plate 8 is arranged between the two clamping plates 7. Extension plates are arranged on both left and right sides of the test plate 8, and the extension plates are plugged into the inner cavity of the clamping plate 7. Symmetrical locking bolts 12 are provided at the bottom of the sandwich plate 7, and the locking bolts 12 are screwed upward into the extension plate; A fill light 10 and an adjustment clip 11 are arranged on the top of the test board 8. The fill light 10 is arranged below the adjustment clip 11. The fill light 10 and the adjustment clip 11 are transparent acrylic plates. The adjustment clamp 11 is composed of equidistantly arranged clamps 13, and the clamps 13 extend along the width of the test plate 8; each clamp 13 is composed of two clamping pieces, and both ends of the clamping piece are provided with a rotating shaft, and the two ends of the clamping piece are rotatably connected to the test plate 8 through the rotating shaft, and a rotating shaft is also provided between two adjacent clamping pieces, and the rotating shaft at this location does not contact the test plate 8; A pull rod 14 is connected between adjacent clamps 13, and the pull rod 14 is fixed to the clamping piece below. A handle 15 is fixed to the right side of the rightmost clamp 13; A ruler 9 is provided on one side of the rear side clamping plate 7 close to the test plate 8. The ruler 9 is a millimeter ruler and extends along the width of the test plate 8. An adjustment mechanism is provided at the bottom of the calibration plate 3, and the adjustment mechanism includes an adjustment plate 4 and an adjustment knob 5. The adjustment plate 4 is provided at the bottom of the calibration plate 3, and the adjustment plate 4 is fixed on the return frame. The four corners of the adjustment plate 4 are screwed with the adjustment knob 5, and the adjustment knob 5 is screwed upward to the bottom of the calibration plate 3; A damping spring is sleeved on the top of the adjusting knob 5, and the damping spring abuts between the adjusting plate 4 and the calibration plate 3; This solution adopts the V-type calibration method when in use. The traditional calibration method is linear calibration, which is to spray rectangular lines on the bottom plate and determine the calibration status by observing the spraying error; however, the printer may suddenly accelerate or decelerate, which will cause material shortage or material accumulation at the test point, which is mainly affected by leveling. We use the V-type and tower-type spraying calibration method, which can be more accurate; Specifically, an adjustment clamp 11 is provided on the test board 8, and the adjustment clamp 11 includes a plurality of equidistantly arranged clamps 13, and the clamps 13 are connected by a pull rod 14, and the pull rod 14 is fixedly connected to the clamping piece below, so that when one of the clamps 13 is pushed, the other clamps 13 also move synchronously, and a handle 15 is provided on the clamp 13 on the right side, and the two ends of the clamp 13 are fixed on the test board 8 through a rotating shaft, and the middle of the clamp 13 can be pushed left and right through the cooperation of the rotating shaft, and the angle of the clamp 13 can be changed by pulling the handle 15; The chuck 13 is V-shaped. When multiple groups of chucks 13 are arranged together, they form a test area. When spraying, the gaps between adjacent chucks 13 can be filled, or the chucks 13 can be sprayed along the shape of the chucks 13. They can also be stacked along the angle to form a tower shape with corners. When stacking, different pressure values are used for each layer. The deviation data can be displayed by measuring the tower height after printing. For example, the printed tower height is 35mm, and 35 multiplied by each change value is 0.002, so the correct pressure value is 0.07. If there is a deviation in height and shape, the printer needs to be further debugged. The advantage of the V-type calibration method is that its corner changes are more obvious, and the linear change of the V-type is larger, so more adjustments of the nozzle can be observed with less material loss. The adjustment clamp 11 can be used as a good reference, and the angle of the clamp 13 can be adjusted to 60°, so that the angle of the clamp 13 can be freely adjusted between the horizontal level and 60°; at the same time, the shell of the clamp 13 can be used as a support to provide the necessary stability, reducing the shape and size of the printed object from being affected by external factors; A fill light 10 is provided on the top surface of the test board 8, and the fill light 10 illuminates the printed object above. The thickness of the printed object can be observed through the brightness of the light, which is convenient for intuitively viewing the printing results; The test plate 8 and the clamping plate 7 are detachably mounted and connected by the locking bolts 12 at the bottom. After the test is completed, the normal panel can be replaced and fixed between the clamping plates 7 again; the detachable test plate 8 is convenient for cleaning and replacement of accessories; An adjustment mechanism is provided at the bottom of the calibration plate 3. The relative height of the calibration plate 3 can be adjusted by turning the adjustment knob 5. A shock-absorbing spring is also provided between the calibration plate 3 and the adjustment plate 4. The shock-absorbing spring can disperse the weight of the calibration plate 3 and maintain the height of the calibration plate 3, which is very convenient.
[0017] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention; therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the claims involved.
[0018] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A 3D printer multi-nozzle calibration mechanism, comprising a mounting frame (1) and a calibration plate (3), characterized in that: The mounting frame (1) comprises a return frame and a transverse sliding frame, the sliding frame is provided with a double nozzle (2), a calibration plate (3) is provided at the bottom of the return frame, and the calibration plate (3) is provided below the double nozzle (2); The calibration plate (3) comprises a clamping plate (7) and a test plate (8); a fill light (10) and an adjustment clamp (11) are arranged on the top of the test plate (8); the adjustment clamp (11) is composed of equidistantly arranged clamps (13); the clamps (13) extend along the width of the test plate (8); A pull rod (14) is connected between adjacent clamps (13), and the pull rod (14) is fixed on the clamping piece below. A handle (15) is fixed on the right side of the rightmost clamp (13); An adjustment mechanism is provided at the bottom of the calibration plate (3), the adjustment mechanism comprising an adjustment plate (4) and an adjustment knob (5); the adjustment plate (4) is provided at the bottom of the calibration plate (3); the adjustment plate (4) is fixed on a return frame; the four corners of the adjustment plate (4) are screwed with adjustment knobs (5); the adjustment knobs (5) are screwed upward to the bottom of the calibration plate (3).
2. A 3D printer multi-nozzle calibration mechanism according to claim 1, characterized in that: The clamping plates (7) include two left and right clamping plates, and the test plate (8) is arranged between the two clamping plates (7).
3. A 3D printer multi-nozzle calibration mechanism according to claim 2, characterized in that: Extension plates are provided on both left and right sides of the test plate (8), and the extension plates are inserted into the inner cavity of the clamping plate (7); symmetrical locking bolts (12) are provided at the bottom of the clamping plate (7), and the locking bolts (12) are screwed upwards into the extension plates.
4. A 3D printer multi-nozzle calibration mechanism according to claim 1, characterized in that: The fill light (10) is arranged below the adjustment clip (11), and the adjustment clip (11) is a transparent acrylic plate.
5. A 3D printer multi-nozzle calibration mechanism according to claim 1, characterized in that: Any of the clamps (13) is composed of two clamps, both ends of which are provided with rotating shafts, and the two ends of the clamps are rotatably connected to the test plate (8) through the rotating shafts, and a rotating shaft is also provided between two adjacent clamps, and the rotating shafts at this location do not contact the test plate (8).
6. A 3D printer multi-nozzle calibration mechanism according to claim 1, characterized in that: A shock absorbing spring is sleeved on the top of the adjusting knob (5), and the shock absorbing spring abuts between the adjusting plate (4) and the calibration plate (3).
7. A 3D printer multi-nozzle calibration mechanism according to claim 1, characterized in that: A ruler (9) is provided on one side of the rear clamping plate (7) close to the test plate (8); the ruler (9) is a millimeter ruler and extends along the width of the test plate (8).