CN215512289U - A forming mechanism and photocuring 3D printer for photocuring is printed - Google Patents

Abstract

The utility model discloses a forming mechanism for photocuring printing and a photocuring 3D printer. The OLED screen fits into the mount. The silo is established on the roof of installed part and is corresponded OLED screen setting, and the silo is used for the storage to print material. The heat dissipation assembly is arranged on the bottom wall of the mounting piece and corresponds to the OLED screen. The filtering component is arranged on the mounting piece and used for filtering and printing peculiar smell. After the OLED screen is adopted, the production cost of the forming mechanism can be reduced, the height size of the forming mechanism is reduced, the forming mechanism is lighter and thinner, the application range is improved, the luminance and brightness uniformity of emergent light is improved, and the printing quality is further improved. And the filtering component can play a better filtering effect on the peculiar smell in the printing process, so that the use experience of a user is improved.

Description

A forming mechanism and photocuring 3D printer for photocuring is printed

Technical Field

The utility model relates to the technical field of 3D printing, in particular to a forming mechanism for photocuring printing and a photocuring 3D printer.

Background

At present, a projection scheme in the field of consumer-grade photocuring 3D printers is a scheme of an external LED (Liquid Crystal Display) light source + an LCD screen, and the scheme has the following defects:

1. an external LED light source is needed, the heat productivity is large, the heat dissipation requirement is high, and the structural size of the whole machine is large;

2. the traditional LCD screen liquid crystal layer is aged and damaged in an accelerated manner under the radiation of a UVA light source for a long time, the service life is short, and an LCD printing screen is a consumable part and needs to be replaced regularly;

3. the photocuring 3D printer has high requirements on the collimation and the uniformity of a light source, an external LED light source usually adopts a point light source or array light source scheme, the LED has a large light emitting angle, and the high collimation and the high uniformity are difficult to achieve by the scheme, so that the printing precision of the printer is influenced;

4. the conventional LCD screen cannot achieve 100% light blocking by means of liquid crystal deflection, and a small amount of UVA light passes through even in a non-light-transmitting region (dark region) during operation, which may cause a problem of excessive resin curing. Therefore, the LCD photocuring 3D printer has higher requirements on the contrast of the screen;

5. the transmittance of a traditional LCD screen to UVA light is only 1% -6%, most of the UVA light is reflected and absorbed, the power consumption is large, the printing speed is low, the working temperature of the screen is high, and the service life of the screen is influenced;

6. the existing photosensitive resin is easy to generate peculiar smell during photocuring, and the use experience of a user is greatly reduced.

Therefore, a molding mechanism for photocuring printing and a photocuring 3D printer are needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

One object of the present invention is to provide a forming mechanism for photocuring printing, which can reduce the thickness of the forming mechanism, reduce the production cost of the forming mechanism and improve the printing quality.

Another objective of the present invention is to provide a photocuring 3D printer, which can reduce the overall height of the printer, reduce the size of the 3D printer, save the production cost, and improve the 3D printing quality and the user experience.

In order to achieve the technical effects, the technical scheme of the forming mechanism for photocuring printing is as follows:

a molding mechanism for photocuring printing, comprising: a mounting member; an OLED screen fitted in the mount; the material groove is formed in the top wall of the mounting piece and corresponds to the OLED screen, and the material groove is used for storing printing materials; the heat dissipation assembly is arranged on the bottom wall of the mounting piece and corresponds to the OLED screen; and the filtering component is arranged on the mounting part and used for filtering and printing peculiar smell. After the OLED screen is adopted, the production cost of the forming mechanism can be reduced, the height size of the forming mechanism is reduced, the forming mechanism is lighter and thinner, the application range is improved, the luminance and brightness uniformity of emergent light is improved, and the printing quality is further improved.

Further, the mounting hole is injectd to the installed part, the inner wall of mounting hole is equipped with the mounting groove, OLED screen cooperation is in the mounting hole, OLED screen on still be equipped with mounting groove complex installation arch. The OLED screen is arranged in the mounting hole, and the screen utilization rate of the OLED screen is improved.

Further, the filter assembly includes: the filter is arranged on the top wall of the mounting piece; the filter fan is arranged on the bottom wall of the mounting piece and communicated with the filter. The filter sets up the top wall that can improve the filter speed to the peculiar smell air in the installed part, has guaranteed filtering component's filter effect.

Further, the heat dissipation assembly includes: the heat dissipation block is arranged on the bottom wall of the OLED screen; and the heat radiation fan is positioned below the heat radiation block and is arranged corresponding to the heat radiation block. The heat dissipation effect of the heat dissipation assembly is well guaranteed, and the service life of the OLED screen is prolonged.

Further, the silo includes: the groove body defines a storage hole, and is arranged on the mounting piece; from the type membrane, from type membrane sealing connection in the bottom of cell body, from the type membrane with the storage hole forms the holding tank that is used for storing the printing material. The emission area of the ultraviolet light emitted by the OLED screen can be increased.

Further, the silo still includes sealing washer and clamping ring, the sealing washer is established the bottom of cell body, the clamping ring is detained and is established the bottom of cell body is in order to incite somebody to action from the locking of type membrane on the bottom of cell body. The sealing washer can play better sealed effect, and the clamping ring can play the effect of locking from the type membrane to improve the reliability that the printing material was deposited to the silo.

A photocuring 3D printer comprising: the molding mechanism for photocuring printing described above; the platform mechanism is arranged on the mounting piece of the forming mechanism for photocuring printing in a position-adjustable mode along the vertical direction, and the platform mechanism is used for curing the printing material.

Further, the photocuring 3D printer still includes: the upright post is arranged on the mounting piece; the driving modules are distributed at intervals in the horizontal direction, the platform mechanism is connected with the output ends of the driving modules, and the driving modules are used for driving the platform mechanism to move in the vertical direction. The accuracy and the precision of the movement of the platform mechanism in the vertical direction can be well guaranteed, so that the problem that the printing quality is reduced due to the fact that the platform mechanism moves in the horizontal direction in an error mode is solved, and the printing quality is improved.

Further, the platform mechanism includes: a connecting assembly connected with the mounting member in a position adjustable along a vertical direction; the shaping platform, the shaping platform with coupling assembling connects, the diapire of shaping platform is the horizontal plane, the side of shaping platform is triangle-shaped. Can prevent that printing material from remaining the solidification at the roof of shaping platform, improve shaping platform's life.

Further, the connection assembly includes: the first connecting piece is connected with the mounting piece; and the second connecting piece is matched on the first connecting piece in a sliding manner along the horizontal direction and is connected with the forming platform. Can play limiting displacement to reduce the possibility that the shaping platform trembled in vertical direction, and then improve shaping platform's stationarity, improve printing quality.

The utility model has the beneficial effects that: after the OLED screen is adopted, the production cost of the forming mechanism can be reduced, the height size of the forming mechanism is reduced, the forming mechanism is lighter and thinner, the application range is improved, the luminance and brightness uniformity of emergent light is improved, and the printing quality is further improved. And the filtering component can play a better filtering effect on the peculiar smell in the printing process, so that the use experience of a user is improved. Due to the adoption of the forming mechanism for photocuring printing, the photocuring printer can reduce the overall height of the printer, reduce the size of the 3D printer, save the production cost and improve the 3D printing quality and the user use experience.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

FIG. 1 is a schematic structural diagram of a molding mechanism for photocuring printing according to an embodiment of the present invention;

FIG. 2 is an exploded view of a molding mechanism for stereolithography provided in accordance with an embodiment of the present invention;

FIG. 3 is an exploded view of a trough according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a photocuring 3D printer provided by an embodiment of the utility model;

fig. 5 is an exploded view of a platform mechanism according to an embodiment of the present invention.

Reference numerals

1. A mounting member; 11. mounting holes;

2. an OLED screen; 21. mounting a boss;

3. a trough; 31. a trough body; 32. a release film; 33. a seal ring; 34. pressing a ring; 35. a fastener; 36. a fixing member;

4. a heat dissipating component; 41. a heat dissipating block; 42. a heat radiation fan;

5. a filter assembly; 51. a filter; 52. a filter fan;

6. a platform mechanism; 61. a connecting assembly; 611. a first connecting member; 612. a second connecting member; 613. a locking member; 614. connecting blocks; 62. a forming platform; 63. an adapter;

7. a column; 8. a driving module; 91. an induction sheet; 92. a photoelectric switch.

Detailed Description

In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

It will be understood that the terms "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the utility model and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be construed as limiting the utility model. In the description of the present invention, "a plurality" means two or more unless otherwise specified. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

Example 1

The specific structure of the molding mechanism for photocuring printing according to the embodiment of the present invention is described with reference to fig. 1 to 5.

An embodiment of a molding mechanism for photocuring printing as shown in fig. 1 includes a mounting member 1, an OLED screen 2 (Organic Light-Emitting Diode), a trough 3, a heat dissipation assembly 4 and a filter assembly 5. The OLED screen 2 fits in the mount 1. Silo 3 establishes on the roof of installed part 1 and corresponds the setting of OLED screen 2, and silo 3 is used for the storage to print the material. The heat dissipation assembly 4 is arranged on the bottom wall of the mounting member 1 and corresponds to the OLED screen 2. Filter assembly 5 is established on installed part 1, and filter assembly 5 is used for filtering printing peculiar smell.

Because OLED screen 2 is integrated to be installed in installed part 1, still be equipped with radiator unit 4 on the diapire of installed part 1 simultaneously, for current LCD screen, can reduce light source calorific capacity betterly, improve forming mechanism's heat dispersion. Meanwhile, compared with the existing LCD screen, the OLED screen 2 does not have a liquid crystal layer, the thickness can be reduced to one third of the original size, and the problem of accelerated aging of the liquid crystal caused by UVA light source radiation can be avoided, so that the size of the forming mechanism is reduced, the size of the whole machine is reduced, the application range of the forming mechanism is expanded, and the service lives of the forming mechanism and the whole machine are prolonged. And the existing LCD screen usually needs to be matched with a light source and a lens component, and the OLED screen 2 can eliminate the parts and fixed sheet metal parts thereof, so that the processing efficiency of the forming mechanism is improved, and the processing cost is reduced. Every pixel on the OLED screen 2 can both give out light to can be convenient for realize the accurate control to the penetrating angle and the intensity of pixel light, with high collimation degree and the degree of consistency that improves the light propagation, and then improve the printing precision of printer. Meanwhile, the control of the color at the pixel level can be realized, the color accuracy can be improved, the black color of 100% can be expressed in a mode of extinguishing pixel points, the switching speed of the color can be improved, the contrast of the OLED screen 2 can be greatly improved, the problem that the redundant resin is solidified in the printing process due to low contrast can be avoided, and the printing quality is further improved. In addition, OLED screen 2 can directly cut off its power supply when the pixel is not expressed to no longer possess the problem of the transmissivity of LCD screen, avoid the light reflection problem of LCD screen, can reduce the consumption and improve energy utilization, thereby improve photocuring speed, and then improve printing speed, and because printing speed increases, make screen operating temperature can reduce to some extent, and then prolong the life of screen.

Therefore, after the OLED screen 2 is adopted, the production cost of the forming mechanism can be reduced, the height size of the forming mechanism is reduced, the forming mechanism is lighter and thinner, the application range is improved, the luminance and brightness uniformity of emergent light is improved, and the printing quality is further improved. And the filtering component 5 can play a better filtering effect on the peculiar smell in the printing process, so that the use experience of a user is improved.

In the embodiment, as shown in fig. 2, the mounting member 1 defines a mounting hole 11, an inner wall of the mounting hole 11 is provided with a mounting groove, the OLED panel 2 is fitted in the mounting hole 11, and the OLED panel 2 is further provided with a mounting protrusion 21 fitted with the mounting groove.

The cooperation of installation arch 21 and mounting groove can effectively improve OLED screen 2 and be connected the steadiness on installed part 1, also makes OLED screen 2 need not be fixed in installed part 1 through other fastening structure simultaneously on, has guaranteed to be OLED screen 2 in the mounting hole 11 betterly, has improved OLED screen 2's screen utilization ratio. In addition, because the OLED screen 2 is matched in the mounting hole 11, the problem of mutual interference among the OLED screen 2, the trough 3 and the heat dissipation assembly 4 cannot occur in the installation process, and therefore the integration level of the forming mechanism is further improved, and the height size of the forming mechanism is further reduced.

In the present embodiment, as shown in fig. 1 and 2, the filter assembly 5 includes a filter 51 and a filter fan 52. The filter 51 is provided in the top wall of the mounting member 1. A filter fan 52 is provided on the bottom wall of the mounting member 1, and the filter fan 52 communicates with the filter 51.

Because the photocuring process is in silo 3 on the roof of installed part 1, set up filter 51 in the roof of installed part 1 and can improve the filter velocity to the peculiar smell air, filter fan 52 can enough inhale the air to filter 51 department simultaneously, also can separate the air after filtering fast to filter component 5's filter effect has been guaranteed betterly.

In the present embodiment, as shown in fig. 1 and 2, the heat dissipating assembly 4 includes a heat dissipating block 41 and a heat dissipating fan 42. The heat slug 41 is arranged on the bottom wall of the OLED panel 2. The heat dissipation fan 42 is located below the heat dissipation block 41 and is disposed corresponding to the heat dissipation block 41.

The radiating block 41 can play a good role in radiating the running OLED screen 2, and the radiating fan 42 can quickly radiate the heat of the radiating block 41, so that the radiating effect of the radiating component 4 is better ensured, and the service life of the OLED screen 2 is prolonged.

In the present embodiment, as shown in fig. 3, the trough 3 includes a trough body 31 and a release film 32. The groove body 31 defines a storage hole, and the groove body 31 is provided on the mounting member 1. The release film 32 is hermetically connected to the bottom end of the tank body 31, and the release film 32 and the storage hole form a storage groove for storing the printing material.

From the bottom of type membrane 32 sealing connection in cell body 31, can improve the emission area by the ultraviolet ray of OLED screen 2 transmission, the ultraviolet ray that OLED screen 2 transmitted can be with the printing material solidification in the holding tank on other platforms through from type membrane 32 back to realize 3D and print the function.

In this embodiment, as shown in fig. 3, the trough 3 further includes a sealing ring 33 and a pressing ring 34, the sealing ring 33 is disposed at the bottom end of the trough body 31, and the pressing ring 34 is buckled at the bottom end of the trough body 31 to lock the release film 32 on the bottom end of the trough body 31.

Since the release film 32 forms a storage tank with the storage hole, there is a possibility that the liquid printing material leaks at the junction of the release film 32 and the tank body 31. Sealing washer 33 in this embodiment can play better sealed effect, and clamping ring 34 can enough ensure that sealing washer 33 cooperates firmly on the bottom of cell body 31 simultaneously, can also play the locking from the effect of type membrane 32 to improve the reliability that printing material was deposited to silo 3.

In the present embodiment, as shown in fig. 3, the trough 3 further includes a fastener 35 and a fixing member 36, the fastener 35 is used for locking the pressing ring 34 on the trough body 31, and the fixing member 36 is used for locking the trough body 31 on the mounting member 1.

The fastening member 35 can improve the connection tightness of the pressing ring 34 with the groove body 31, thereby further preventing the possibility of leakage of the resin material on the release film 32. Specifically, the fastening members 35 are plural and distributed around the groove 31. The fixing member 36 can realize the fixed mounting of the trough 3 on the mounting member 1 and also can adjust the levelness of the trough 3 on the mounting member 1. Specifically, the fixing member 36 includes a thumb screw.

Example 2

As shown in fig. 1-5, the present invention also discloses a photocuring 3D printer, which includes a forming mechanism for photocuring printing and a platform mechanism 6. The platform mechanism 6 is arranged on the mounting piece 1 of the forming mechanism for photocuring printing in a position adjustable mode along the vertical direction, and the platform mechanism 6 is used for solidifying printing materials. The molding mechanism for photocuring printing described in embodiment 1 is the molding mechanism for photocuring printing, and thus has the advantages described in any one of embodiments 1. The photocuring printer of this embodiment can reduce the whole height of printer promptly, reduces the size of 3D printer, saves manufacturing cost to improve 3D printing quality and user and use experience.

In this embodiment, as shown in fig. 4 and 5, the photocuring 3D printer further includes a column 7 and a plurality of driving modules 8. The upright 7 is provided on the mounting 1. A plurality of drive module 8 are along horizontal direction interval distribution, and platform mechanism 6 is connected with a plurality of drive module 8's output, and drive module 8 is used for drive platform mechanism 6 along vertical direction motion.

When platform mechanism 6 was located the first high position of silo 3, OLED screen 2 can launch the ultraviolet ray in order to stop on platform mechanism 6 with the printing material shaping one deck in silo 3, and drive module 8 can drive platform mechanism 6 and deviate from silo 3 along the direction of stand 7 and move to second high position, and OLED screen 2 continues to launch the ultraviolet ray at this moment and prints the material shaping again for another layer on platform mechanism 6, from this the recirculation can realize 3D and print. Due to the fact that the plurality of driving modules 8 are arranged in the clumsy embodiment, accuracy and precision of movement of the platform mechanism 6 in the vertical direction can be well guaranteed, the problem that printing quality is reduced due to movement errors of the platform mechanism 6 in the horizontal direction is solved, and printing quality is improved. Specifically, two driving modules 8 are provided in the present embodiment, and in other embodiments of the present invention, a plurality of driving modules 8 may be provided.

In the present embodiment, as shown in fig. 5, the platform mechanism 6 includes a connecting member 61 and a forming platform 62. The connecting assembly 61 is connected to the mounting 1 in a vertically adjustable position. The forming platform 62 is connected with the connecting assembly 61, the bottom wall of the forming platform 62 is a horizontal plane, and the side surface of the forming platform 62 is triangular.

Because the shaping platform 62 need stretch into the printing material in silo 3 for at least a part of shaping platform 62 soaks in the printing material, the side of shaping platform 62 in this embodiment is triangle-shaped, make the printing material that is located on the roof of shaping platform 62 can slide along two limits of triangle-shaped under the effect of self gravity, can play the effect of practicing thrift printing material, also can prevent that the printing material from remaining the solidification at the roof of shaping platform 62, improve shaping platform 62's life.

In the present embodiment, as shown in fig. 5, the connection assembly 61 includes a first connection member 611 and a second connection member 612. The first connector 611 is connected to the mount 1. The second connector 612 is slidably fitted on the first connector 611 in the horizontal direction, and the second connector 612 is connected with the molding platform 62.

Because the first connecting piece 611 and the second connecting piece 612 are slidably arranged in the horizontal direction, the distance between the forming platform 62 and the mounting piece 1 can be conveniently adjusted, and the application range of the forming platform is improved. In addition, the first connecting piece 611 and the second connecting piece 612 can be matched to play a limiting role, so that the possibility that the forming platform 62 shakes in the vertical direction is reduced, the stability of the forming platform 62 is improved, and the printing quality is improved.

In this embodiment, as shown in fig. 5, the connecting assembly 61 further includes a locking member 613 and a connecting block 614, the connecting block 614 is connected to the first connecting member 611 and the output end of the driving module 8, and the locking member 613 is used for locking the first connecting member 611 on the second connecting member 612.

The locking member 613 can better ensure the connection stability of the first connecting member 611 and the second connecting member 612. The connection block 614 can connect the first connecting member 611 with the output end of the driving module 8, so that the driving module 8 can drive the forming platform 62 to move vertically. Specifically, one of the connecting block 614 and the first connecting piece 611 is provided with a limiting protrusion, and the other one is provided with a limiting groove matched with the limiting protrusion, so that the limiting effect on the relative displacement of the connecting block 614 and the first connecting piece 611 in the horizontal direction can be achieved, the stability of the forming platform 62 is further improved, and the printing quality is improved.

In this embodiment, as shown in fig. 5, the platform mechanism 6 further includes an adaptor 63, and two ends of the adaptor 63 are respectively connected to the connecting assembly 61 and the forming platform 62.

In this embodiment, as shown in fig. 4 and 5, the photocuring 3D printer further includes a sensing sheet 91 and a photoelectric switch 92. The sensing piece 91 is arranged on the connecting assembly 61, the photoelectric switch 92 is arranged on the driving module 8, the photoelectric switch 92 is in communication connection with the driving module 8, and the driving module 8 is configured to stop driving the connecting assembly 61 to move when the photoelectric switch 92 detects the sensing piece 91.

The cooperation of response piece 91 and photoelectric switch 92 can play the foolproof effect betterly to prevent that forming platform 62 from surpassing extreme position and destroying silo 3 when moving in vertical direction, perhaps break away from the possibility of stand 7, effectively guaranteed the normal reliable clear of 3D printing.

In the description herein, references to the description of "some embodiments," "other embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims (10)

1. A molding mechanism for photocuring printing, comprising:

a mounting (1);

an OLED screen (2), the OLED screen (2) being fitted in the mount (1);

the feeding trough (3) is arranged on the top wall of the mounting piece (1) and corresponds to the OLED screen (2), and the feeding trough (3) is used for storing printing materials;

the heat dissipation assembly (4) is arranged on the bottom wall of the mounting piece (1) and corresponds to the OLED screen (2);

filter assembly (5), filter assembly (5) are established on installed part (1), filter assembly (5) are used for the filtering to print peculiar smell.

2. The forming mechanism for photocuring printing according to claim 1, characterized in that the mounting piece (1) defines a mounting hole (11), the inner wall of the mounting hole (11) is provided with a mounting groove, the OLED screen (2) is fitted in the mounting hole (11), and the OLED screen (2) is further provided with a mounting protrusion (21) fitted with the mounting groove.

3. The molding mechanism for stereolithography according to claim 1, characterized in that said filter assembly (5) comprises:

a filter (51), wherein the filter (51) is arranged on the top wall of the mounting piece (1);

a filter fan (52), wherein the filter fan (52) is arranged on the bottom wall of the mounting piece (1), and the filter fan (52) is communicated with the filter (51).

4. The molding mechanism for stereolithography according to claim 1, characterized in that said heat dissipating assembly (4) comprises:

the heat dissipation block (41), the heat dissipation block (41) is arranged on the bottom wall of the OLED screen (2);

and the heat radiation fan (42) is positioned below the heat radiation block (41) and is arranged corresponding to the heat radiation block (41).

5. The forming mechanism for photocuring printing according to claim 1, characterized in that the chute (3) comprises:

the trough body (31) defines a storage hole, and the trough body (31) is arranged on the mounting piece (1);

from type membrane (32), from type membrane (32) sealing connection in the bottom of cell body (31), from type membrane (32) with the storage hole forms the storage tank that is used for storing printing material.

6. The forming mechanism for photocuring printing according to claim 5, wherein the trough (3) further comprises a sealing ring (33) and a pressing ring (34), the sealing ring (33) is arranged at the bottom end of the trough body (31), and the pressing ring (34) is buckled at the bottom end of the trough body (31) to lock the release film (32) on the bottom end of the trough body (31).

7. A photocuring 3D printer, comprising:

the molding mechanism for photocuring printing of any one of claims 1-6;

the platform mechanism (6) is arranged on the mounting piece (1) of the forming mechanism for photocuring printing in a position-adjustable mode along the vertical direction, and the platform mechanism (6) is used for curing the printing material.

8. The photocuring 3D printer of claim 7, further comprising:

the upright post (7), the upright post (7) is arranged on the mounting piece (1);

a plurality of drive module (8), it is a plurality of drive module (8) are along horizontal direction interval distribution, platform mechanism (6) are with a plurality of the output of drive module (8) is connected, drive module (8) are used for the drive platform mechanism (6) are along vertical direction motion.

9. Photocuring 3D printer according to claim 7, characterized in that the platform mechanism (6) comprises:

a connecting assembly (61), wherein the connecting assembly (61) is connected with the mounting part (1) in a vertically position-adjustable manner;

forming platform (62), forming platform (62) with coupling assembling (61) are connected, the diapire of forming platform (62) is the horizontal plane, the side of forming platform (62) is triangle-shaped.

10. Photocuring 3D printer according to claim 9, characterized in that the connection assembly (61) comprises:

a first connector (611), the first connector (611) being connected to the mounting (1);

a second connector (612), the second connector (612) being slidably fitted on the first connector (611) in a horizontal direction, the second connector (612) being connected with the molding platform (62).

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