CN209832611U - Magnetic wire stripping mechanism - Google Patents
Magnetic wire stripping mechanism Download PDFInfo
- Publication number
- CN209832611U CN209832611U CN201920142274.2U CN201920142274U CN209832611U CN 209832611 U CN209832611 U CN 209832611U CN 201920142274 U CN201920142274 U CN 201920142274U CN 209832611 U CN209832611 U CN 209832611U
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- stripping
- release film
- magnetic wire
- groove
- photocuring
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Abstract
The utility model discloses a magnetic wire peeling means, have the open-ended and peel off the groove including an upper portion, peel off the bottom in groove and be equipped with a magnet, be equipped with a columniform bar magnet steel from the type membrane inboard, when the bar magnet steel receives magnet attraction, form sunkenly from the inboard surface of type membrane, and then make and break away from type membrane and photocuring 3D formed part. The magnetic wire stripping mechanism adopting the technical scheme utilizes the stripping groove body to form the vacuum scraper, the stripping is converted into the wire stripping from the surface, the stripping force can be reduced to be approximate 1/100 of the original stripping force, and the following four-point beneficial effects can be realized at least: (1) lower peel forces may allow for higher peel speeds. (2) The low stripping force can improve the success rate and reduce the requirement of supporting strength. (3) Printing of extremely high viscosity resins, including paste resins, can be achieved. (4) Monitoring the vacuum pressure value can judge whether the stripping is successful or not, if the stripping is failed, the stripping can be tried again or the stripping height auxiliary stripping is generated. Ensuring that each peel is successful.
Description
Technical Field
The utility model relates to a photocuring 3D printer, in particular to magnetic wire stripping off mechanism.
Background
Photocuring formula 3D printer is based on photocuring shaping principle, is different from FDM machine use wire rod, and photocuring 3D printer consumptive material is photosensitive resin, and the shaping precision is high, and surface effect is good, and is more smooth than the model surface of PLA material. The curing apparatus can be subdivided into SLA and DLP curing apparatus according to the light source.
SLA uses laser to irradiate photosensitive resin, similar to FDM, and the forming process is track-following. The laser head scans each layer of the model slice sequentially from point to face to line according to the G-code generated by the model slice. The photosensitive resin irradiated with the laser is rapidly cured. In order to realize high-speed scanning, laser is generated by a laser, is sequentially reflected by two vibrating mirrors in XY vertical directions, and then is irradiated to the surface of the resin. Similar machines have Form 1+, the forming precision is high, and most of high-precision industrial grade photocuring machines adopt SLA.
The DLP type photocuring 3D printer is much faster because its light source is from a projector or LED screen. By irradiating the cut surface of one mold with white light each time to the resin, the unmolded portion was black, and by molding one surface at a time in this manner, the speed advantage was significant, but the accuracy was slightly lower than SLA. Its printing time depends only on the height of the model to be printed, and is independent of the number and volume of the models. In this way, small-scale rapid production can be achieved.
DLP formula 3D printer is divided into and throws the formula again and throws the formula down, throws the formula down and is the projecting apparatus in the below promptly, and the resin tank bottom is transparent, and the inboard covers from type membrane or silica gel to avoid the model solidification to lift a layer thickness distance on the groove, the shaping platform at every turn. However, in order to fully release the resin and replenish the resin at the bottom, it is common to use a first lifting and then lowering method, i.e. if printing in a layer thickness of 0.1mm, the lifting is first 5mm and then the lowering is 4.9 mm. This kind of mode is big from type action in-process print platform amount of exercise, and 3D printing speed is slow. Moreover, because the surface peeling technology is adopted, the peeling strength is large, and the peeling time is long, so that the peeling easily fails.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a magnetic wire stripping off mechanism.
According to one aspect of the present invention, there is provided a magnetic wire peeling mechanism, disposed at the bottom of a resin tank of a photo-curing 3D printer, wherein a release film is disposed at the bottom of the resin tank, the release film has elasticity and can deform in a micro amount under an external force and recover to its original shape after the external force disappears, the photo-curing 3D molded part is molded along the inner side of the release film, a distance of a layer thickness is raised from the photo-curing 3D molded part after each molding, the magnetic wire peeling mechanism is disposed at the outer side of the release film for peeling the release film from the photo-curing 3D molded part in a linear scanning manner, the magnetic wire peeling mechanism includes a peeling groove having an opening at the upper portion thereof, the opening portion of the peeling groove is in contact with the outer side of the release film, a magnet is disposed at the bottom of the peeling groove, a cylindrical magnetic steel bar capable of being attracted by the magnet is disposed at the inner side of the release, when the magnetic steel bar is attracted by the magnet, the release film is driven to enter the stripping groove, a recess is formed on the inner side surface of the release film, and then the release film is separated from the photocuring 3D forming part on the inner side of the release film.
Specifically, the stripping groove is connected with a translation driving mechanism, the translation driving mechanism drives the stripping groove to translate back and forth from one end to the other end of the release film, in the translation process, the stripping groove opening part and the outer side surface of the release film are kept in a top contact state, and the magnetic steel bar rolls along the inner side surface of the release film along with the stripping groove.
Specifically, the front end of the recess on the inner surface of the release film is the peeling line of the release film.
Preferably, the time for the stripping groove to translate once from one end of the release film to the other end of the release film is 1s-2 s.
Specifically, the translation drive mechanism is a lead screw motor assembly.
The magnetic wire stripping mechanism adopting the technical scheme has the advantages that the magnetic wire stripping mechanism utilizes the magnet and the magnetic steel bar to form the scraper, the stripping is converted into wire stripping from surface stripping, the stripping force can be reduced to be approximate 1/100 of the original stripping force, and the following beneficial effects can be at least realized:
(1) the peeling force is low and a higher peeling speed can be adopted. The single time of the surface stripping adopted in the current market is different from 10s to 15 s. The linear stripping technology can realize the stripping speed of 1s-2s in a single time. The single-layer printing time can reach 3s per layer, and the speed is as high as 120 mm/h.
(2) The stripping force is low, the success rate can be improved, and the requirement on the supporting strength is reduced.
(3) The scraper cuts in, can realize resin speed filling, pushes out and can realize strickleing off of resin, can realize the printing of extremely high viscosity resin, including paste resin.
Drawings
Fig. 1 is a schematic front view of a magnetic wire peeling mechanism according to an embodiment of the present invention.
FIG. 2 is a schematic diagram of a backside structure of the magnetic wire stripping mechanism shown in FIG. 1.
Fig. 3 is a schematic structural diagram of the magnetic wire peeling mechanism shown in fig. 1.
FIG. 4 is a schematic cross-sectional view of the magnetic wire stripping mechanism shown in FIG. 1.
Fig. 5 is an enlarged view of a portion shown in fig. 4 a.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 to 5 schematically show a magnetic wire peeling mechanism according to an embodiment of the present invention. As shown, the device is provided at the bottom of a resin tank 1 of a photo-curing 3D printer.
The bottom of the resin tank 1 is provided with a release film 2.
The release film 2 has elasticity, can be slightly deformed under the action of external force and can be restored to the original shape after the external force disappears.
The photocuring 3D formed part 3 is formed along the inner side of the release film 2, and the photocuring 3D formed part 3 is lifted by a distance of one layer thickness after each forming.
The magnetic wire stripping mechanism is arranged on the outer side of the release film 2 and used for stripping the release film 2 from the photocuring 3D formed part 3 in a linear scanning mode.
In this embodiment, the magnetic wire peeling mechanism includes a peeling groove 4 having an opening at an upper portion thereof, and an opening portion of the peeling groove 4 is in contact with an outer side of the release film 2.
The stripping groove 4 and the bottom are provided with a magnet 7.
A cylindrical magnetic steel bar 6 which can be attracted by a magnet 7 is arranged on the inner side of the release film 2.
The release film 2 is sandwiched between the magnet 7 and the magnetic steel bar 6.
When the magnetic steel bar 6 is attracted by the magnet 7, the release film 2 is driven to enter the stripping groove 4, the arc-shaped recess B is formed on the inner side surface of the release film 2, and then the release film 2 is separated from the photocuring 3D forming part 3 on the inner side of the release film.
The magnetic steel bar 6 completely enters the recess B.
The front end of the recess B is a stripping line of the release film 2 and the photocuring 3D forming part 3.
The magnetic wire stripping mechanism moves from one end of the release film 2 to the other end, and the magnetic steel bar 6 rolls along the inner side surface of the release film 2.
The stripping groove 4 is connected with a translation driving mechanism.
In the present embodiment, the translation driving mechanism is a lead screw motor assembly 5.
The lead screw motor component 5 drives the stripping groove 4 to move back and forth from one end to the other end of the release film 2, and in the moving process, the opening part of the stripping groove 4 and the outer side surface of the release film 2 are kept in a top contact state.
Preferably, the time for the peeling groove 4 to translate once from one end to the other end of the release film 2 is 1s-2 s.
In other embodiments, the bottom of the peeling groove 4 can be provided with a magnetic steel strip, and the inside of the release film 2 is provided with a cylindrical magnet.
The magnetic wire stripping mechanism adopting the technical scheme has the advantages that the scraper is formed by the magnet 7 and the magnetic steel bar 6, the surface stripping is converted into the wire stripping, the stripping force can be reduced to 1/100 which is close to the original stripping force, and the following beneficial effects can be at least realized:
(1) the peeling force is low and a higher peeling speed can be adopted. The single time of the surface stripping adopted in the current market is different from 10s to 15 s. The linear stripping technology can realize the stripping speed of 1s-2s in a single time. The single-layer printing time can reach 3s per layer, and the speed is as high as 120 mm/h.
(2) The stripping force is low, the success rate can be improved, and the requirement on the supporting strength is reduced.
(3) The scraper cuts in the resin to realize resin speed filling, the pushing out can realize resin leveling, and the printing of the resin with extremely high viscosity, including paste resin, can be realized.
What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.
Claims (5)
1. A magnetic wire stripping mechanism is arranged at the bottom of a resin tank of a photocuring 3D printer, a release film is arranged at the bottom of the resin tank, the release film has elasticity and can deform slightly under the action of external force and recover to the original shape after the external force disappears, a photocuring 3D formed part is formed along the inner side of the release film, and the photocuring 3D formed part is lifted by a distance of one layer thickness after each forming, the magnetic wire stripping mechanism is characterized in that the magnetic wire stripping mechanism is arranged on the outer side of the release film and used for stripping the release film from the photocuring 3D formed part in a linear scanning mode, the magnetic wire stripping mechanism comprises a stripping groove with an opening at the upper part, the opening part of the stripping groove is in contact with the outer side of the release film, a magnet is arranged at the bottom of the stripping groove, and a cylindrical magnetic steel bar capable of being attracted by the magnet is arranged on the inner side of the release film, from the type membrane clamp magnet with between the bar magnet, the bar magnet is driven when receiving magnet attraction from the type membrane gets into peel off the inslot, form type membrane inboard surface and form sunkenly, and then make from the type membrane rather than inboard photocuring 3D formed part breaks away from.
2. The magnetic wire stripping mechanism according to claim 1, wherein the stripping groove is connected to a translation driving mechanism, the translation driving mechanism drives the stripping groove to translate back and forth from one end to the other end of the release film, during translation, the stripping groove opening part and the outer side surface of the release film maintain a contacting state, and the magnetic steel bar rolls along the inner side surface of the release film along with the stripping groove.
3. The magnetic wire peeling mechanism according to claim 2, wherein a front end of the recess on an inner surface of the release film is a peeling wire of the release film.
4. The magnetic wire peeling mechanism according to claim 2, wherein the time for which the peeling groove is translated once from one end to the other end of the release film is 1s-2 s.
5. The magnetic wire stripping mechanism according to any of claims 2 to 4, wherein the translation drive mechanism is a lead screw motor assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920142274.2U CN209832611U (en) | 2019-01-28 | 2019-01-28 | Magnetic wire stripping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920142274.2U CN209832611U (en) | 2019-01-28 | 2019-01-28 | Magnetic wire stripping mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN209832611U true CN209832611U (en) | 2019-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920142274.2U Active CN209832611U (en) | 2019-01-28 | 2019-01-28 | Magnetic wire stripping mechanism |
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| CN (1) | CN209832611U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113878869A (en) * | 2021-09-29 | 2022-01-04 | 器宗(上海)科技有限公司 | Formula of sinking 3D printing device |
-
2019
- 2019-01-28 CN CN201920142274.2U patent/CN209832611U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113878869A (en) * | 2021-09-29 | 2022-01-04 | 器宗(上海)科技有限公司 | Formula of sinking 3D printing device |
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