Automatic demolding and mold shoveling mechanism of photocuring printer

Abstract

The utility model relates to the technical field of 3D printing, and discloses an automatic demolding and mold shoveling mechanism of a photocuring printer, after printing is completed, a printing platform assembly moves upwards in the first direction, when the printing platform assembly moves to the top of a rack, a demolding assembly is jacked by the inner wall of the top of the rack, and then when the printing platform assembly continues to move upwards, a demolding rod is jacked into a forming hole to complete automatic demolding. And after demolding is completed, the shovel head of the shovel mold assembly moves in the second direction, residual resin below the forming platform is shoveled away, meanwhile, the material containing disc also moves to the position below the shovel head, and the shoveled-away resin falls into the material containing disc. The whole process realizes automatic demolding and mold shoveling, and compared with the prior art, the demolding efficiency is improved, and labor is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to 3D printing technical field especially relates to a light solidification printer automatic demoulding shovel mould mechanism. BACKGROUND

[0002] DLP light solidification printer is through digital projection technology, utilizes digital micro -mirror device (DMD chip) to reflect light to form image. DMD chip is made of millions of tiny mirrors, these mirrors can tilt to reflect the light from the light source to form a projection image. The printer projects a layer of image directly to the resin surface through the projector, solidifies the whole layer of resin once, realizes fast printing. This technology makes DLP printer can print three-dimensional model with high precision and speed, especially the curved surface and the part of rich details.

[0003] DLP light solidification printer is through digital projection technology, utilizes digital micro -mirror device (DMD chip) to reflect light to form image. DMD chip is made of millions of tiny mirrors, these mirrors can tilt to reflect the light from the light source to form a projection image. The printer projects a layer of image directly to the resin surface through the projector, solidifies the whole layer of resin once, realizes fast printing. This technology makes DLP printer can print three-dimensional model with high precision and speed, especially the curved surface and the part of rich details. UTILITARY MODEL CONTENT

[0004] Based on the above, the utility model discloses a purpose in a kind of light solidification printer automatic demoulding shovel mould mechanism, can automatically complete demoulding and clean the resin remaining on printing platform.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides a kind of light solidification printer automatic demoulding shovel mould mechanism, comprising:

[0007] Frame, printing platform assembly is arranged on it, the printing platform assembly includes forming platform, the forming platform is provided with a plurality of forming holes, the forming platform is configured to move up and down along the first direction;

[0008] Demoulding component is set on the printing platform assembly, and it includes a plurality of demoulding rods, and the demoulding rod is set one by one with the forming hole;

[0009] Shovel mould component is set on the frame, and it includes shovel head, and the shovel head can move back and forth along the second direction and shovel the resin of the bottom of the forming platform completed demoulding;

[0010] Hopper assembly includes material holding tray, the material holding tray is set below the shovel head, the material holding tray can move back and forth along the second direction, and the resin of the bottom of the forming platform is shovelled and falls into the material holding tray.

[0011] Preferably, a platform fixing plate is arranged above the forming platform, a plurality of pressing rods are sleeved on the platform fixing plate, an elastic element is sleeved on the pressing rod, the elastic element is above the platform fixing plate, the bottom of the pressing rod is connected with a demolding plate, and a plurality of demolding rods are arranged below the demolding plate.

[0012] Preferably, a rod cap is arranged at the top of the pressing rod, the elastic element is a spring, the spring is sleeved on the pressing rod, the top of the spring abuts against the rod cap, and the bottom of the spring abuts against the top end face of the platform fixing plate.

[0013] Preferably, the printing platform assembly further comprises two first driving motors, the output ends of the first driving motors are respectively provided with first lead screws, the first lead screws are provided with first threaded sleeves, and the two sides of the platform fixing plate are respectively connected with the first threaded sleeves.

[0014] Preferably, a limiting rod is further arranged on the platform fixing plate, the bottom of the limiting rod is connected with a limiting block, and the limiting block is above the demolding plate.

[0015] Preferably, the demolding assembly further comprises a second driving motor, the output end of the second driving motor is connected with a second lead screw, the second lead screw is sleeved with a second threaded sleeve, the upper portion of the rack is further provided with a second sliding rail, the second sliding rail is provided with a second sliding block, the second sliding block is connected with a demolding fixing plate, the demolding fixing plate is connected with the second threaded sleeve, and the bottom of the demolding fixing plate is connected with the shovel head.

[0016] Preferably, a demolding adjusting plate is further arranged below the demolding fixing plate, and the shovel head is arranged on the demolding adjusting plate.

[0017] Preferably, the hopper assembly further comprises a third driving mechanism, the output end of the third driving mechanism is connected with two brackets, the third driving mechanism can drive the brackets to move in a second direction, and the material containing disc is arranged on the brackets.

[0018] Preferably, the third driving mechanism comprises a third driving motor and a linkage rod, the output end of the third driving motor is provided with a first driving wheel, the linkage rod is sleeved with a first driven wheel, a first belt is sleeved between the first driving wheel and the first driven wheel, the two ends of the linkage rod are provided with second driving wheels, a second driven wheel is arranged on the rear side of the rack, a second driven wheel corresponding to the second driving wheel is rotationally arranged on the front side of the rack, a second belt is one-to-one sleeved between the first driving wheel and the second driven wheel, and the brackets are one-to-one arranged on the second belt.

[0019] Preferably, a handle is arranged on the rear side of the material containing disc.

[0020] The utility model discloses a beneficial effect is:

[0021] The utility model provides a kind of automatic demoulding and mould scraping mechanism of photocuring printer, when completing printing, printing platform component moves upwards along first direction, when moving to the top of rack, demoulding component is hit by the inner wall of top of rack, then continue to move upwards, demoulding rod top enters into forming hole and completes automatic demoulding, after demoulding, the shovel head of mould scraping component moves along second direction, and the residual resin under the forming platform is scraped off, synchronously, material holding tray also moves to the lower of shovel head, and the resin scraped off falls into material holding tray.The whole process realizes automatic demoulding and mould scraping, compared with prior art, improve demoulding efficiency, save labor. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed to be used in the embodiment of the utility model will be simply introduced as follows, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the content of the embodiment of the utility model and these drawings without creating labor.

[0023] Figure 1 A structure schematic view of the automatic demoulding and mould scraping mechanism of photocuring printer is provided for the embodiment of the utility model;

[0024] Figure 2 A partial structure schematic view of the automatic demoulding and mould scraping mechanism of photocuring printer is provided for the embodiment of the utility model;

[0025] Figure 3 Another visual partial structure schematic view of the automatic demoulding and mould scraping mechanism of photocuring printer is provided for the embodiment of the utility model;

[0026] Figure 4 Another visual partial structure schematic view of the automatic demoulding and mould scraping mechanism of photocuring printer is provided for the embodiment of the utility model;

[0027] Figure 5 A cross-sectional structure schematic view of the position of the demoulding component of the embodiment of the utility model.

[0028] In the drawing:

[0029] X, first direction;Y, second direction;

[0030] 1, rack; 2, printing platform assembly; 21, forming platform; 211, forming hole; 22, platform fixing plate; 23, first driving motor; 24, first screw rod; 25, first threaded sleeve; 3, demolding assembly; 31, demolding rod; 32, pressing rod; 321, rod cap; 33, spring; 34, demolding plate; 4, mold shoveling assembly; 41, shovel head; 42, second driving motor; 43, second screw rod; 44, second threaded sleeve; 45, mold shoveling fixing plate; 46, adjusting plate; 47, second sliding block; 48, second sliding rail; 5, hopper assembly; 51, material containing disc; 511, handle; 52, third driving motor; 53, first belt; 54, first driven wheel; 55, linkage rod; 56, second driving wheel; 57, second driven wheel; 58, second belt; 59, bracket; 61, limiting rod; 62, limiting block. DETAILED DESCRIPTION

[0031] In order to make the technical problems solved by the present application, the technical solutions adopted and the technical effects reached more clear, the technical solutions of the embodiments of the present application will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] In the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include the direct contact of the first and second features, or can include the contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include the vertical and oblique above of the first feature to the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include the vertical and oblique below of the first feature to the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0034] In the description of the embodiments, the terms "upper", "lower", "left", "right", and the like orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used to distinguish in the description, and have no special meaning.

[0035] As Figures 1 to 5 shown, the utility model discloses a kind of automatic demoulding and mould scraping mechanisms of light-curing printer, comprising: rack 1, which is provided with printing platform assembly 2, the printing platform assembly 2 includes forming platform 21, the forming platform 21 is provided with a plurality of forming holes 211, the forming platform 21 is configured to move up and down along first direction X;Demoulding assembly 3 is arranged on the printing platform assembly 2, which includes a plurality of demoulding rods 31, the demoulding rod 31 is arranged one-to-one with the forming hole 211;Mould scraping assembly 4 is arranged on the rack 1, which includes shovel head 41, the shovel head 41 can move back and forth along second direction Y to shovel the resin of the bottom of the forming platform 21 completed demoulding;Hopper assembly 5 includes material holding tray 51, the material holding tray 51 is arranged below the shovel head 41, the material holding tray 51 can move back and forth along second direction Y, the resin at the bottom of the forming platform 21 is scraped off and falls into the material holding tray 51.

[0036] The utility model provides a kind of automatic demoulding and mould scraping mechanisms of light-curing printer, when completing printing, printing platform assembly 2 moves upwards along first direction X, when moving to the top of rack 1, demoulding assembly 3 is stopped by the inner wall of the top of rack 1, then continue to move up, demoulding rod 31 is inserted into forming hole 211 and completes automatic demoulding, after demoulding, shovel head 41 of mould scraping assembly 4 moves along second direction Y, and the residual resin below forming platform 21 is scraped off, synchronously, material holding tray 51 also moves to the below of shovel head 41, and the resin that is scraped off falls into material holding tray 51. The whole process realizes automatically demoulding, mould scraping, compared with prior art, improve demoulding efficiency, save labor.

[0037] In some embodiments, as Figure 5As shown, the upper side of the forming platform 21 is connected with a platform fixing plate 22, a plurality of pressing rods 32 are sleeved on the platform fixing plate 22, elastic members are sleeved on the pressing rods 32, the elastic members are located above the platform fixing plate 22, the bottoms of the pressing rods 32 are connected with demolding plates 34, and a plurality of demolding rods 31 are arranged below the demolding plates 34. The top of the pressing rod 32 is provided with a rod cap 321, the elastic member is a spring 33, the spring 33 is sleeved on the pressing rod 32, the top of the spring 33 abuts against the rod cap 321, and the bottom of the spring 33 abuts against the top end face of the platform fixing plate 22. Specifically, in the embodiment of the utility model, when the printing platform assembly 2 moves upwards along the first direction X, when the rod cap 321 of the pressing rod 32 contacts the inner wall of the top of the rack 1, the printing platform assembly 2 continues to move upwards, the rod cap 321 at the top of the pressing rod 32 is kept stationary because the top contacts the rack 1, at the same time, the spring 33 is compressed, the printing platform assembly 2 continues to move upwards, the forming hole 211 of the forming platform 21 passes through the demolding rod 31, so that demolding is completed, and when the demolding is completed, the printing platform assembly 2 moves downwards along the first direction X, under the action of the elasticity of the spring 33, the demolding rod 31 is reset, and the demolding rod 31 is separated from the forming hole 211.

[0038] In some embodiments as shown in 2 to 4, the printing platform assembly 2 further comprises two first driving motors 23, the output ends of the first driving motors 23 are respectively provided with first lead screws 24, the first lead screws 24 are provided with first threaded sleeves 25, and the two sides of the platform fixing plate 22 are respectively connected with the first threaded sleeves 25. Specifically, in the embodiment, the first driving motor 23 is installed on the rack 1, the upper and lower ends of the first lead screw 24 are rotationally connected with the rack 1, the first lead screw 24 extends along the first direction X, the two first driving motors 23 rotate synchronously, drive the first lead screw 24 to rotate synchronously, so that the first threaded sleeve 25 can move up and down, and the platform fixing plate 22 and the forming platform 21 are driven to move up and down by the first threaded sleeve 25.

[0039] In some embodiments, as shown in Figure 5 In order to keep the demolding assembly 3 in an elastic tensioning state and avoid that the demolding rod 31 is clamped into the forming hole 211 when demolding is not needed, the platform fixing plate 22 is further provided with a limiting rod 61, the bottom of the limiting rod 61 is connected with a limiting block 62, and the limiting block 62 is located above the demolding plate 34.

[0040] In some embodiments, as shown in Figures 2 to 4As shown, the shoveling mold assembly 4 further comprises a second driving motor 42, the output end of the second driving motor 42 is connected with a second screw rod 43, the second screw rod 43 is sleeved with a second threaded sleeve 44, the upper part of the rack 1 is further provided with a second sliding rail 48, the second sliding rail 48 is provided with a second sliding block 47, the second sliding block 47 is connected with a shoveling mold fixing plate 45, the shoveling mold fixing plate 45 is connected with the second threaded sleeve 44, the bottom of the shoveling mold fixing plate 45 is connected with the shoveling head 41. Specifically, in the embodiment, the shoveling mold assembly 4 is arranged at the rear side of the rack 1, the second driving motor 42 is arranged on the rack 1, the two ends of the second screw rod are rotationally connected with the rack 1, the second screw rod 43 is arranged close to the top of the rack 1, the second driving motor 42 drives the second screw rod 43 to rotate, the second screw rod 43 drives the second threaded sleeve 44 to rotate, thereby driving the shoveling mold fixing plate 45 to move back and forth along the second direction Y, through the cooperation of the second sliding rail 48 and the second sliding block 47, the shoveling mold fixing plate 45 can stably move along the second direction Y, the shoveling mold fixing plate 45 drives the shoveling head 41 to move, the shoveling head 41 is sharp at one end of the printing platform assembly 2, which just corresponds to the bottom surface of the forming platform 21, and the shoveling head 41 moves forward along the second direction Y to remove the resin remaining on the bottom surface of the forming platform 21.

[0041] In some embodiments, as Figure 4 As shown, the shoveling mold fixing plate 45 is further provided with a shoveling mold adjusting plate 46 below, and the shoveling head 41 is arranged on the shoveling mold adjusting plate 46. Specifically, through the cooperation of the shoveling head 41 and the shoveling mold adjusting plate 46, the position of the shoveling head 41 can be adjusted, so that the action track of the shoveling head 41 just covers the bottom surface of the forming platform 21.

[0042] In some embodiments, the hopper assembly 5 further comprises a third driving mechanism, the output end of the third driving mechanism is connected with two brackets 59, the third driving mechanism can drive the brackets 59 to move along the second direction Y, and the material receiving tray 51 is arranged on the brackets 59. The third driving mechanism comprises a third driving motor 52 and a linkage rod 55, the output end of the third driving motor 52 is provided with a first driving wheel (not shown in the figure), the linkage rod 55 is sleeved with a first driven wheel 54, the first driving wheel and the first driven wheel 54 are sleeved with a first belt 53, the two ends of the linkage rod 55 are provided with a second driving wheel 56, the second driven wheel is arranged at the rear side of the rack 1, the front side of the rack 1 is rotatably provided with a second driven wheel 57 corresponding to the second driving wheel 56, the first driving wheel and the second driven wheel 57 are one-to-one sleeved with a second belt 58, and the second belt 58 is one-to-one provided with the brackets 59. The rear side of the material receiving tray 51 is provided with a handle 511. In the embodiment of the utility model, the third driving motor 52 drives the linkage rod 55 to rotate through the first driving wheel, the first driven wheel 54 and the first belt 53, the linkage rod 55 drives the first driving wheel, the second driven wheel 57 and the second belt 58 to rotate, the brackets 59 are driven to move back and forth along the second direction Y through the second belt 58, so that the material receiving tray 51 can move back and forth, the material receiving tray 51 is just located below the shovel head 41, the shovel head 41 falls into the material receiving tray 51 by shoveling the residual resin, the material receiving tray 51 is detachably connected with the brackets 59, and the material receiving tray 51 can be taken out from the brackets 59 through the handle 511, and the resin in the material receiving tray 51 is cleaned.

[0043] It should be noted that the above are only the preferred embodiments of the utility model and the technical principles applied. Those skilled in the art will understand that the utility model is not limited to the specific embodiments described herein, and those skilled in the art can make various obvious changes, re-adjustments and substitutions without departing from the protection scope of the utility model. Therefore, although the utility model has been described in more detail through the above embodiments, the utility model is not limited to the above embodiments, and can further include more other equivalent embodiments without departing from the utility model concept, and the scope of the utility model is determined by the appended claims.

Claims

1. An automatic demolding and mold-removing mechanism for a photopolymer printer, characterized in that, include: A frame (1) is provided thereon with a printing platform assembly (2), the printing platform assembly (2) including a forming platform (21), the forming platform (21) being provided with a plurality of forming holes (211), the forming platform (21) being configured to move up and down along a first direction (X); A demolding assembly (3) is disposed on the printing platform assembly (2), and includes a plurality of demolding rods (31), wherein the demolding rods (31) are configured one-to-one with the forming hole (211); The mold assembly (4) is mounted on the frame (1) and includes a shovel head (41) which can move back and forth in the second direction (Y) to remove the resin from the bottom of the molding platform (21) after demolding. The hopper assembly (5) includes a material tray (51) located below the shovel head (41). The material tray (51) is movable back and forth in a second direction (Y) and the resin at the bottom of the molding platform (21) is shoveled off and falls into the material tray (51).

2. The automatic demolding and mold-removing mechanism for a photopolymer printer according to claim 1, characterized in that, A platform fixing plate (22) is connected above the forming platform (21). Several pressure rods (32) are sleeved on the platform fixing plate (22). An elastic element is sleeved on the pressure rod (32). The elastic element is located above the platform fixing plate (22). A demolding template (34) is connected to the bottom of the pressure rod (32). Several demolding rods (31) are arranged below the demolding template (34).

3. The automatic demolding and mold-removing mechanism for a photopolymer printer according to claim 2, characterized in that, The top of the pressure rod (32) is provided with a rod cap (321), the elastic element is a spring (33), the spring (33) is sleeved on the pressure rod (32), the top of the spring (33) abuts against the rod cap (321), and the bottom of the spring (33) abuts against the top surface of the platform fixing plate (22).

4. The automatic demolding and mold-removing mechanism for a photopolymer printer according to claim 2, characterized in that, The printing platform assembly (2) also includes two first drive motors (23), the output ends of the first drive motors (23) are respectively provided with first lead screws (24), the first lead screws (24) are provided with first threaded sleeves (25), and the two sides of the platform fixing plate (22) are respectively connected to the first threaded sleeves (25).

5. The automatic demolding and mold-removing mechanism for a photopolymer printer according to claim 2, characterized in that, The platform fixing plate (22) is also provided with a limiting rod (61), and the bottom of the limiting rod (61) is connected to a limiting block (62), which is located above the demolding template (34).

6. An automatic demolding and mold-removing mechanism for a photopolymer printer according to any one of claims 1 to 5, characterized in that, The shovel mold assembly (4) also includes a second drive motor (42), the output end of which is connected to a second lead screw (43), a second threaded sleeve (44) is fitted on the second lead screw (43), a second slide rail (48) is also provided on the frame (1), a second slider (47) is provided on the second slide rail (48), the second slider (47) is connected to a shovel mold fixing plate (45), the shovel mold fixing plate (45) is connected to the second threaded sleeve (44), and the bottom of the shovel mold fixing plate (45) is connected to the shovel head (41).

7. The automatic demolding and mold-removing mechanism for a photopolymer printer according to claim 6, characterized in that, Below the shovel mold fixing plate (45), there is also a shovel mold adjusting plate (46), and the shovel head (41) is disposed on the shovel mold adjusting plate (46).

8. An automatic demolding and mold-removing mechanism for a photopolymer printer according to any one of claims 1 to 5, characterized in that, The hopper assembly (5) also includes a third drive mechanism. The output end of the third drive mechanism is connected to two brackets (59). The third drive mechanism can drive the brackets (59) to move along the second direction (Y). The material tray (51) is disposed on the brackets (59).

9. The automatic demolding and mold-removing mechanism for a photopolymer printer according to claim 8, characterized in that, A handle (511) is provided on the rear side of the material tray (51).

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