CN217021437U - Photocuring 3D printing device - Google Patents
Photocuring 3D printing device Download PDFInfo
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- CN217021437U CN217021437U CN202122734564.6U CN202122734564U CN217021437U CN 217021437 U CN217021437 U CN 217021437U CN 202122734564 U CN202122734564 U CN 202122734564U CN 217021437 U CN217021437 U CN 217021437U
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- photocuring
- transparent film
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Abstract
The utility model relates to the technical field of 3D printing, and discloses a photocuring 3D printing device, wherein the photocuring 3D printing device comprises a substrate, a storage device and a transparent film; the front end of the storage device is provided with a first pressure rod and a front limit switch, the rear end of the storage device is provided with a second pressure rod and a rear limit switch, and the first pressure rod or the second pressure rod is pressed down to enable one side of the transparent film to be tightly pressed and fixed to the storage device; when the front limit switch is triggered, the first pressure rod presses downwards and the second pressure rod pushes upwards; when the rear limit switch is triggered, the second pressure lever is pressed downwards and the first pressure lever is pushed upwards. First depression bar and second depression bar are add respectively to this application at storage device front end and rear end for when model and transparent film separation, transparent film only is compressed tightly fixedly on one side, and the another side is in lax state, and the separation action always begins from one side of model and transparent film, has avoided the separation of dragging by force of model and transparent film, has reduced the risk of model deformation, and prevents that transparent film from being damaged because of the atress is too big.
Description
Technical Field
The utility model relates to the field of 3D printing, in particular to a photocuring 3D printing device.
Background
3D printing is one of the rapid prototyping technologies, and the method is based on a digital model file, realizes three-dimensional entity manufacturing by using the idea of layer-by-layer stacking accumulation, has the characteristics of short production period, low manufacturing cost and the like, is widely applied to the industries of mold manufacturing, medical treatment, jewelry and the like, and has wide development prospect. The photocuring 3D printing technology is used as one of the 3D printing technologies, the forming speed is high, and the system works relatively stably; the printable size range is wide; the dimensional accuracy is high; the surface quality is good, and the method is suitable for being used as a fine part; a model with a very complex structure can be manufactured; high utilization rate of raw materials and the like.
DLP (Digital Light Processing) technology is one of photocuring 3D printing, and the DLP technology uses an LED as a Light source, and an exposure module thereof is a projector system. The technology digitally controls the switching of a galvanometer in a projector through a computer program, projects a specific pattern, projects an image of one slice (namely one slice) each time, and solidifies photosensitive liquid resin layer by layer, so that a 3D printed object is quickly and accurately created. Compared with the traditional forming mode, the method has the characteristics of high printing speed, high precision and the like.
The one deck transparent film that has good light transmissivity has all been laid usually in photocuring 3D printing apparatus's the storage device, and the process of curing molding all goes on transparent film, therefore, every completion one deck curing molding, the model all need be separated with transparent film. In the prior art, the transparent film is usually completely fixed on a storage device, and after each sheet layer model is adhered to a forming table, the forming table is lifted by force to separate the model from the transparent film. However, the separation method easily causes the transparent film to deform or break after being printed for several times, and the transparent film needs to be replaced continuously; on the other hand, the pulling during the separation process may also cause the model to deform, thereby affecting the print quality.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a photocuring 3D printing device, and aims to solve the technical problems that a photocuring model is easy to deform and a transparent film is easy to damage due to violent tearing when the photocuring model is separated from the transparent film.
In order to achieve the above object, the present invention provides a photocuring 3D printing device, where the photocuring 3D printing device includes a substrate, a storage device, and a transparent film; the material storage device is fixed on the substrate; the front end of the storage device is provided with a first pressure rod and a front limit switch, the rear end of the storage device is provided with a second pressure rod and a rear limit switch, and the first pressure rod or the second pressure rod is pressed downwards to enable one side of the transparent film to be tightly pressed and fixed to the storage device; the front limit switch is used for controlling the first pressure rod to press down or push up; the rear limit switch is used for controlling the second pressure rod to press down or push up;
when the front limit switch is triggered, the first pressure rod presses downwards and the second pressure rod pushes upwards; when the rear limit switch is triggered, the second pressure rod is pressed downwards, and the first pressure rod is pushed upwards.
Optionally, in an embodiment, the photocuring 3D printing device further includes a scraper mechanism and a guide frame, and the substrate is provided with guide long holes along two sides of the storage device; the scraper mechanism is suspended above the transparent film by the guide frame and reciprocates along the guide long hole; the guide frame collides with the front limit switch when moving to the front end of the material storage device, and the front limit switch is triggered; the guide frame collides with the rear limit switch when moving to the rear end of the storage device, and the rear limit switch is triggered.
Optionally, in an embodiment, the front limit switch and the rear limit switch are located on the same side of the magazine.
Optionally, in an embodiment, the storage device is square, and four corners of the storage device are respectively provided with a push-pull electromagnet; the first pressure rod is fixed on the two push-pull electromagnets at the front end of the material storage device, and the second pressure rod is fixed on the two push-pull electromagnets at the rear end of the material storage device; the two push-pull electromagnets at the front end of the material storage device are electrically connected with the front limit switch; two push-pull electromagnets at the rear end of the storage device are electrically connected with the rear limit switch.
Optionally, in an embodiment, two ends of the first pressure lever are respectively fixed to the two push-pull electromagnets at the front end of the storage device by fixing bolts, and two ends of the second pressure lever are respectively fixed to the two push-pull electromagnets at the rear end of the storage device by fixing bolts.
Optionally, in an embodiment, two ends of the first pressing rod and two ends of the second pressing rod are respectively provided with a limiting bolt, and the limiting bolts are used for limiting the first pressing rod or the second pressing rod to make a linear motion in a vertical direction.
Optionally, in an embodiment, soft rubber pads are disposed at the bottoms of the first pressure lever and the second pressure lever, and the soft rubber pads are in contact with the transparent film.
Optionally, in an embodiment, the photocuring 3D printing apparatus further includes a forming table, and one side of the forming table, to which the model is attached, is flat and smooth.
Optionally, in an embodiment, the forming table is detachably mounted to facilitate picking of the printing form.
Optionally, in an embodiment, the scraper mechanism includes a slurry dissolving tank, and a hole for adding slurry is formed in the top of the slurry dissolving tank.
According to the technical scheme provided by the utility model, the front end and the rear end of the material storage device are respectively provided with the first pressure rod and the second pressure rod, the front limit switch and the rear limit switch, and after the front limit switch or the rear limit switch is triggered, one side of the transparent film is pressed by one of the first pressure rod or the second pressure rod, so that when the model is separated from the transparent film, only one side of the transparent film is pressed and fixed, and the other side of the transparent film is in a loose state, so that the separation action always starts from one side of the model and the transparent film, the rigid pulling separation of the model and the transparent film is avoided, the risk of model deformation is reduced, and the transparent film is prevented from being damaged due to overlarge stress.
Drawings
One or more embodiments are illustrated in drawings corresponding to, and not limiting to, the embodiments, in which elements having the same reference number designation may be represented as similar elements, unless specifically noted, the drawings in the figures are not to scale.
Fig. 1 is a schematic structural diagram of a photocuring 3D printing apparatus according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of a device when a scraper mechanism of an embodiment of a photocuring 3D printing device of the present invention runs to a front end;
fig. 3 is a schematic perspective view of the device when the scraper mechanism of the embodiment of the photocuring 3D printing device of the utility model runs to the rear end.
The figures identify the description;
1. a substrate; 2. a material storage device; 3. a transparent film; 4. a first pressure lever; 5. a front limit switch; 6. a second compression bar; 7. a rear limit switch; 8. a scraper mechanism; 9. a guide frame; 10. a guide long hole; 11. a forming table; 201. a push-pull electromagnet; 202. fixing the bolt; 203. and a limiting bolt.
Detailed Description
In order to facilitate an understanding of the utility model, the utility model is described in more detail below with reference to the accompanying drawings and specific examples. 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 also be present. 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 be present. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and the like as used herein are for descriptive purposes only. In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as implicitly indicating the number of technical features indicated. Thus, unless stated otherwise, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "plurality" means two or more. The terms "comprises" and any variations thereof, are intended to cover a non-exclusive inclusion, which may have the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or combinations thereof.
Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, fixed connections, removable connections, and integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. 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. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Furthermore, the technical features mentioned in the different embodiments of the utility model described below can be combined with each other as long as they do not conflict with each other.
Referring to fig. 1 to 3, the present invention provides a photo-curing 3D printing apparatus, where the photo-curing 3D printing apparatus includes a substrate 1, a storage device 2, and a transparent film 3; the material storage device 2 is fixed on the substrate 1; the front end of the storage device 2 is provided with a first pressure rod 4 and a front limit switch 5, the rear end of the storage device 2 is provided with a second pressure rod 6 and a rear limit switch 7, and one side of the transparent film 3 is tightly pressed and fixed to the storage device 2 by pressing down the first pressure rod 4 or the second pressure rod 6; the front limit switch 5 is used for controlling the downward pressing or upward pushing of the first pressure lever 4; the rear limit switch 7 is used for controlling the second pressure lever 6 to press down or push up;
when the front limit switch 5 is triggered, the first pressure lever 4 is pressed down and the second pressure lever 6 is pushed up; when the rear limit switch 7 is triggered, the second pressure lever 6 is pressed down and the first pressure lever 4 is pushed up. Since the curing process is performed on the transparent film 3, the mold is separated from the transparent film 3 every time one layer of curing process is performed. The preceding limit switch 5 control that this application set up first depression bar 4 pushes down or pushes up, back limit switch 7 control second depression bar 6 pushes down or pushes up, make transparent film 3 only keep its state that is compressed tightly on one side that is located storage device 2 front ends or on one side that is located storage device 2 rear ends all the time, guaranteed promptly when model and transparent film 3 separate, transparent film 3 only is compressed tightly fixedly on one side, the another side is in the lax state, make the separation action always begin from one side of model and transparent film 3, the separation is dragged to the rigidity of having avoided model and transparent film 3, the risk of model deformation has been reduced, transparent film 3 has been prevented again because of the atress is too big and damaged.
In the embodiment, storage device 2 is fixed in on the base plate 1, and base plate 1 corresponds 2 lower position hollows of storage device to be convenient for photocuring 3D printing device bottom ultraviolet light projects in storage device 2's the shaping region, thereby make 3D print to go on smoothly. Further, in order to ensure that there is a margin for proper shrinkage of the transparent film 3 side when the mold and the transparent film 3 are separated, the front-rear length of the transparent film 3 is greater than the distance between the first and second pressing bars 4 and 6.
In one embodiment, the photocuring 3D printing device further comprises a scraper mechanism 8 and a guide frame 9, wherein the substrate 1 is provided with guide long holes 10 along two sides of the storage device 2; the guide frame 9 suspends the scraper mechanism 8 above the transparent film 3 and reciprocates along the guide long hole 10, wherein a gap reserved between the bottom of the scraper mechanism 8 and the transparent film 3 is equal to the thickness of the laid slurry; when the guide frame 9 moves to the front end of the material storage device 2, the guide frame collides with the front limit switch 5 to trigger the front limit switch 5; the guide frame 9 collides with the rear limit switch 7 when moving to the rear end of the material storage device 2, and the rear limit switch 7 is triggered. The scraper mechanism 8 comprises a slurry dissolving groove, the slurry dissolving groove is used for loading slurry used for printing, and holes for adding the slurry are formed in the top of the slurry dissolving groove for convenience of slurry addition.
The guide long holes 10 are positioned on two sides of the storing device 2 and provide a moving path for the guide frame 9, and the guide frame 9 reciprocates along the guide long holes 10 under the action of a driving device. Since the guide frame 9 drives the scraper mechanism 8 to move to the front end or the rear end of the magazine 2 after each image of a sheet is completed, the image of the sheet model is conveniently adhered to the forming table 11. According to the embodiment of the application, the motion characteristics of the guide frame 9 are utilized to serve as the trigger structures of the front limit switch 5 and the rear limit switch 7, the state conversion control of the first pressure lever 4 and the second pressure lever 6 can be realized without adding other elements additionally, and the structural complexity of the device is reduced. In other embodiments, other trigger structures of limit switches can be added, or other switching control components for states of the first pressure lever 4 and the second pressure lever 6 can be used.
In one embodiment, the front limit switch 5 and the rear limit switch 7 are located on the same side of the storing device 2, and the front limit switch 5 and the rear limit switch 7 are arranged on the same side to facilitate subsequent operation of the printing device.
In one embodiment, the storage device 2 is square, and four corners of the storage device are respectively provided with a push-pull electromagnet 201; the first pressure lever 4 is fixed on the two push-pull electromagnets 201 at the front end of the material storage device 2, and the second pressure lever 6 is fixed on the two push-pull electromagnets 201 at the rear end of the material storage device 2; the two push-pull type electromagnets 201 at the front end of the material storage device 2 are electrically connected with the front limit switch 5, and the front limit switch 5 controls the first pressure rod 4; two push-pull type electromagnets 201 at the rear end of the material storage device 2 are electrically connected with a rear limit switch 7, and the rear limit switch 7 is used for controlling the second pressing rod 6. In this embodiment, the first pressure lever 4 and the second pressure lever 6 respectively perform the pressing and pushing actions under the synergistic action of the two push-pull electromagnets 201, and maintain the pressing or pushing state. Push-pull type electromagnet 201 is simple in structure, and four angles of the storage device 2 use the same push-pull type electromagnet 201, so that assembly errors can be reduced when the printing device is assembled. Under the control of an operating system, when the current limit switch 5 is triggered, the rear limit switch 7 is in a non-triggering state; when the rear limit switch 7 is triggered, the front limit switch 5 becomes a non-trigger state; when the mold is separated from the transparent film 3, the transparent film 3 is in a relaxed state while being pressed.
In one embodiment, two ends of the first pressing rod 4 are respectively fixed to two push-pull electromagnets 201 at the front end of the magazine 2 by fixing bolts 202, and two ends of the second pressing rod 6 are respectively fixed to two push-pull electromagnets 201 at the rear end of the magazine 2 by fixing bolts 202.
In an embodiment, two ends of the first pressing rod 4 and two ends of the second pressing rod 6 are respectively provided with a limiting bolt 203, and the limiting bolts 203 are used for limiting the first pressing rod 4 or the second pressing rod 6 to make a linear motion in a vertical direction.
In one embodiment, the first pressing rod 4 and the second pressing rod 6 are provided with soft rubber pads at the bottom, and the soft rubber pads are in contact with the transparent film 3. When the first pressure lever 4 or the second pressure lever 6 is pressed down, the soft rubber pad is elastically deformed to a certain extent, and the friction force between the soft rubber pad and the transparent film 3 is increased, so that the soft rubber pad can better fix the transparent film 3.
In an embodiment, the light-cured 3D printing apparatus further includes a forming table 11, and a side of the forming table 11, which is attached to the model, is flat and smooth. Can guarantee that there is not impurity to remain before printing, prevent that impurity from polluting and then causing the interference to printing, be convenient for the model simultaneously and adhere to on the shaping platform 11. The forming table 11 in this embodiment is mounted on a post attached to the base plate 1, wherein the forming table 11 can slide up and down along the post so that the forming table 11 can slide down over the magazine 2 a short distance so that the image pattern of each sheet can be brought into contact with the forming table 11 or with a pattern on the forming table 11 to be adhered to the forming table 11.
In one embodiment, the forming station 11 is removably mounted to facilitate picking of the printing mold. The forming table can be conveniently taken down and reinstalled, and the picking of the model after printing is completed each time is facilitated.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; within the idea of the utility model, also technical features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the utility model as described above, which are not provided in detail for the sake of brevity; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and these modifications or substitutions do not depart from the spirit of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The photocuring 3D printing device is characterized by comprising a substrate, a storage device and a transparent film; the material storage device is fixed on the substrate; the front end of the storage device is provided with a first pressure rod and a front limit switch, the rear end of the storage device is provided with a second pressure rod and a rear limit switch, and the first pressure rod or the second pressure rod is pressed downwards to enable one side of the transparent film to be tightly pressed and fixed to the storage device; the front limit switch is used for controlling the first pressure rod to press down or push up; the rear limit switch is used for controlling the second pressure rod to press down or push up;
after the front limit switch is triggered, the first pressure lever is in a downward pressing state and the second pressure lever is in an upward pushing state; after the rear limit switch is triggered, the second pressure lever is in a downward pressing state and the first pressure lever is in an upward pushing state.
2. The photocuring 3D printing device according to claim 1, further comprising a scraper mechanism and a guide frame, wherein the substrate is provided with guide long holes along two sides of the storage device; the guide frame suspends the scraper mechanism above the transparent film and reciprocates along the guide long hole.
3. The photocuring 3D printing device of claim 2, wherein the front limit switch and the rear limit switch are located on the same side of the magazine.
4. The photocuring 3D printing device of claim 2, wherein the storage device is square, and four corners of the storage device are respectively provided with a push-pull electromagnet; the first pressure rod is fixed on the two push-pull electromagnets at the front end of the material storage device, and the second pressure rod is fixed on the two push-pull electromagnets at the rear end of the material storage device; the two push-pull electromagnets at the front end of the material storage device are electrically connected with the front limit switch; two push-pull type electromagnets at the rear end of the material storage device are electrically connected with the rear limit switch.
5. The photocuring 3D printing device according to claim 3, wherein two ends of the first pressure lever are respectively fixed on the two push-pull electromagnets at the front end of the storage device through fixing bolts, and two ends of the second pressure lever are respectively fixed on the two push-pull electromagnets at the rear end of the storage device through fixing bolts.
6. The photocuring 3D printing device of claim 4, wherein two ends of the first pressure lever and two ends of the second pressure lever are respectively provided with a limiting bolt, and the limiting bolts are used for limiting the first pressure lever or the second pressure lever to do linear motion in the vertical direction.
7. The photocuring 3D printing device of claim 1, wherein soft rubber pads are arranged at the bottoms of the first pressure lever and the second pressure lever, and the soft rubber pads are in contact with the transparent film.
8. The photocuring 3D printing device of claim 1, further comprising a shaping table, wherein one side of the shaping table, to which the model is attached, is flat and smooth.
9. The photocuring 3D printing device of claim 8, wherein the shaping station is removably mounted to facilitate picking of the printing mold.
10. The photocuring 3D printing device of claim 2, wherein the scraper mechanism comprises a slurry dissolving tank, and a hole for adding slurry is formed in the top of the slurry dissolving tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122734564.6U CN217021437U (en) | 2021-11-09 | 2021-11-09 | Photocuring 3D printing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122734564.6U CN217021437U (en) | 2021-11-09 | 2021-11-09 | Photocuring 3D printing device |
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| CN217021437U true CN217021437U (en) | 2022-07-22 |
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| CN202122734564.6U Active CN217021437U (en) | 2021-11-09 | 2021-11-09 | Photocuring 3D printing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117698117A (en) * | 2023-12-11 | 2024-03-15 | 无锡美普御景物联科技有限公司 | LED light curing device and method |
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2021
- 2021-11-09 CN CN202122734564.6U patent/CN217021437U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117698117A (en) * | 2023-12-11 | 2024-03-15 | 无锡美普御景物联科技有限公司 | LED light curing device and method |
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