A lifting type light-cured printer taking mechanism

Abstract

In order to solve the prior art, the utility model provides a kind of take-out mechanism for lifting type photocuring printer, comprising: limit block, take-out connecting component driven movement by vertical displacement mechanism.The take-out connecting component below is equipped with ejector plate, the ejector plate is equipped with several downwardly arranged ejector pin.Molding substrate is arranged below ejector plate and is equipped with ejector pin through-hole, the number and position of the ejector pin through-hole at least cover the several ejector pin.The side of molding substrate facing ejector plate is equipped with guide column, and the guide column hole matched with guide column is arranged on the ejector plate at the corresponding position of guide column.The guide column passes through the guide column hole and is fixed or detachably fixed with the bottom of take-out connecting component.Spring is arranged between the top surface of molding substrate and the bottom surface of ejector plate.The utility model does not need user to carry out scraping action with spatula, so that the component obtained by printing is not easy to be damaged due to improper scraping of user.

Description

Technical Field

[0001] This utility model belongs to the technical field of additive manufacturing equipment components, specifically relating to a part-retrieving mechanism for a lifting-type photopolymer printer. Background Technology

[0002] Desktop photopolymer printers are compact 3D printing devices based on photopolymerization technology (SLA / DLP / LCD), suitable for home, education, creative design and other scenarios.

[0003] Photopolymer printers include bottom-mounted printers and top-mounted printers. Bottom-mounted printers use a top-down printing method and require a larger amount of resin. Therefore, desktop photopolymer printers commonly use top-mounted printers that print from bottom to top.

[0004] Currently, pull-out UV curing printers require a scraper to remove the printed part from the molding substrate after printing. Whether this process damages the printed part depends primarily on the viscosity of the resin and the molding substrate, as well as the user's experience. If the resin viscosity is high, the scraping process is more difficult, making it easier to damage the printed part. If the resin viscosity is insufficient, the printed part cannot adhere to the molding substrate and move with it, resulting in printing failure. Utility Model Content

[0005] This utility model addresses the problems existing in the prior art by providing a part-retrieving mechanism for a lifting-type photopolymer printer, comprising: a limiting block fixed above a resin tank, and a part-retrieving connecting assembly driven by a vertical displacement mechanism. A ejector plate is provided below the part-retrieving connecting assembly, the top surface of which at least covers a portion of the bottom area of ​​the limiting block. The ejector plate has several downwardly positioned ejector pins. A molding substrate is disposed below the ejector plate and has ejector pin through holes, the number and position of which at least cover the ejector pins.

[0006] The molding substrate has guide posts on the side facing the ejector plate, and the ejector plate has guide post holes at corresponding positions to match the guide posts. The guide posts pass through the guide post holes and are fixedly or detachably fixed to the bottom of the part removal connection assembly.

[0007] A spring is provided between the top surface of the molding substrate and the bottom surface of the ejector plate.

[0008] Furthermore, the ejector plate has several first threaded holes along the vertical direction, and the top of the ejector pin has a first thread that matches the first threaded holes. The ejector pin is screwed and fastened to the first threaded holes through the first thread.

[0009] Furthermore, the bottom of the part-retrieving connection assembly is provided with a second threaded through hole, the guide post is provided with a third threaded blind hole in the vertical direction, and the first screw is provided with a second thread and a third thread corresponding to the second threaded hole and the third threaded hole, respectively. The first screw is screwed and fastened to the second threaded through hole through the second thread, and to the third threaded blind hole through the third thread, thereby making the guide post detachably and fixedly connected to the bottom of the part-retrieving connection assembly.

[0010] Furthermore, the second threaded through hole and the third threaded blind hole have the same hole diameter and internal thread structure, and the second thread and the third thread of the first screw are the same and match the internal threads of the second threaded through hole and the third threaded blind hole.

[0011] Furthermore, the component picking connection assembly has a slot on the side facing the vertical displacement mechanism, and is plugged into and connected to the displacement end of the vertical displacement mechanism via the slot.

[0012] Furthermore, the component-retrieving connecting assembly has at least one fourth threaded through hole along the cross-sectional direction of the insert at the displacement end of the vertical displacement mechanism, and the insert at the displacement end of the vertical displacement mechanism has a fifth threaded blind hole at a corresponding position. The second screw is screwed into the fourth threaded through hole and the fifth threaded blind hole respectively.

[0013] Furthermore, a pair of handles are provided on opposite sidewalls of the component retrieval connection assembly.

[0014] Furthermore, the spring is sleeved on the ejector pin.

[0015] Furthermore, the cross-section of the guide post is one of the following: cross-shaped, X-shaped, regular polygonal, circular, elliptical, plum blossom-shaped, star-shaped, or irregular polygonal.

[0016] The advantages of this invention are as follows: This invention achieves automatic part removal by using several ejector pins to detach the component from the bottom surface of the forming substrate. On the one hand, it eliminates the need for the user to scrape with a scraper, thus reducing the likelihood of damage to the printed component due to improper scraping. On the other hand, the densely arranged ejector pins result in smaller forces at individual points and larger total forces when the component is ejected, making it difficult to damage the component during the removal process, further reducing the possibility of damage to the printed component during the removal action. Attached Figure Description

[0017] Figure 1 The diagram shown is a schematic diagram of the part-retrieving mechanism for the lifting-type photopolymer printer of this utility model.

[0018] Figure 2 The diagram shown is a disassembled structural schematic of the part-retrieving mechanism for the lifting-type photopolymer printer of this utility model.

[0019] Figure 3The diagram shown is a structural schematic of the component-receiving connection assembly of this utility model.

[0020] Figure 4 The diagram shown is a structural schematic of the ejector plate of this utility model;

[0021] Figure 5 As shown Figure 4 A magnified structural diagram of part A in the diagram;

[0022] Figure 6 The diagram shown is a structural schematic of the molded substrate of this utility model;

[0023] Figure 7 The diagram shown is a structural schematic of the guide column of this utility model. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0025] Please note that the terms "above", "below", "left", "right", "top", "bottom", "end", "full", etc. used in this utility model to describe positional relationships do not represent the absolute positional relationship between modules / components / assemblies / parts / components, but rather the relative positional relationship between modules / components / assemblies / parts / components.

[0026] Example 1

[0027] A component-retrieving mechanism for a lift-up type UV-curable printer, such as Figures 1 to 7 As shown, the assembly includes: a limiting block 1 fixed above the resin tank, and a part-retrieving connecting assembly 2 driven by a vertical displacement mechanism 20. Below the part-retrieving connecting assembly 2 is an ejector plate 3, the top surface of which at least covers a portion of the bottom area of ​​the limiting block 1. The ejector plate 3 has several downward-facing ejector pins 4. A molding substrate 5 is disposed below the ejector plate 3 and has ejector pin through holes 6, the number and position of which at least cover the ejector pins 4.

[0028] The molding substrate 5 has a guide post 7 on the side facing the ejector plate 3, and the ejector plate 3 has a guide post hole 8 at the corresponding position of the guide post 7. The guide post 7 passes through the guide post hole 8 and is fixed or detachably fixed to the bottom of the part removal connection assembly 2.

[0029] A spring 9 is provided between the top surface of the molding substrate 5 and the bottom surface of the ejector plate 3.

[0030] Compared to existing technologies that use a scraper to remove the printed component from the bottom surface of the molding substrate 5, this invention provides a novel component removal mechanism. During printing, the spring 9 supports the ejector plate 3, preventing the ejector pin 4 from passing through the ejector pin through-hole 6. At this time, photopolymerization printing can be performed on the bottom surface of the molding substrate 5. The printed component adheres to the bottom surface of the molding substrate 5 and is gradually lifted upwards by the vertical displacement mechanism 20 as printing progresses.

[0031] After the component is printed, the vertical displacement mechanism 20 drives the ejector plate 3 and the molding substrate 5 to continue to rise through the component picking connection assembly 2. When the ejector plate 3 moves to the position of the limiting block 1, it is limited by the limiting block 1 and cannot continue to rise. At this time, the vertical displacement mechanism 20 drives the molding substrate 5 to continue to rise through the component picking connection assembly 2, while the ejector plate 3 stops rising due to the limitation. The spring 9 is compressed, and the ejector pin 4 is pushed out from the ejector pin through hole 6, thereby detaching the component from the bottom end face of the molding substrate 5 and completing the component picking. The guide post 7 can limit the movement of the molding substrate 5 relative to the ejector plate 3, avoiding possible damage to the ejector pin 4 caused by misalignment.

[0032] This invention achieves automatic component removal by using several ejector pins 4 to detach the component from the bottom surface of the forming substrate 5. On the one hand, it eliminates the need for the user to scrape with a scraper, thus reducing the likelihood of damage to the printed component due to improper scraping. On the other hand, the densely arranged ejector pins 4 result in smaller forces at individual points and larger total forces when the component is ejected, making it difficult to damage the component during the removal process, further reducing the possibility of damage to the printed component during the removal action.

[0033] Example 2

[0034] Based on the lifting-type photopolymer printer part-picking mechanism of Embodiment 1, such as Figure 5 As shown, the ejector plate 3 has several first threaded holes 10 along the vertical direction, and the top of the ejector pin 4 has a first thread that matches the first threaded holes 10. The ejector pin 4 is screwed and fastened to the first threaded holes 10 through the first thread.

[0035] This configuration allows for a detachable and fixed connection between the ejector pin 4 and the ejector plate 3, enabling the selection of ejector pins 4 with different positions and diameters as needed.

[0036] Example 3

[0037] Based on the lifting-type photopolymer printer part-picking mechanism of Embodiment 1, such as Figures 1 to 7As shown, the bottom of the part-retrieving connecting assembly 2 is provided with a second threaded through hole 11, and the guide post 7 is provided with a third threaded blind hole 12 in the vertical direction. The first screw 13 is provided with a second thread and a third thread corresponding to the second threaded hole 11 and the third threaded hole 12, respectively. The first screw 13 is screwed and fastened to the second threaded through hole 11 through the second thread, and to the third threaded blind hole 12 through the third thread, thereby making the guide post 7 detachably and fixedly connected to the bottom of the part-retrieving connecting assembly 2.

[0038] This method allows for a detachable connection between the component picking assembly 2, the molding substrate 5, and the ejector plate 3. This enables the selection of molding substrate 5 and ejector plate 3 with different densities and thicknesses of ejector pins 4 according to different printed components, and also facilitates user maintenance of the molding substrate 5.

[0039] Example 4

[0040] Based on the lifting-type photopolymer printer part-retrieving mechanism of Embodiment 3, such as Figures 1 to 7 As shown, the second threaded through hole 11 and the third threaded blind hole 12 have the same hole diameter and internal thread structure. The second thread and the third thread of the first screw 13 are the same and match the internal threads of the second threaded through hole 11 and the third threaded blind hole 12.

[0041] This design reduces the difficulty of machining parts, allowing for detachable fixing using traditional long screws.

[0042] Example 5

[0043] Based on the lifting-type photopolymer printer part-picking mechanism of Embodiment 1, such as Figure 3 As shown, the part-retrieving connecting assembly 2 has a slot 14 on the side facing the vertical displacement mechanism, and is plugged into and connected to the displacement end of the vertical displacement mechanism via the slot 14. This arrangement allows for a pluggable and detachable fixed connection between the part-retrieving connecting assembly 2 and the vertical displacement mechanism 20.

[0044] The component-retrieving connecting assembly 2 has at least one fourth threaded through hole 15 along the cross-sectional direction of the insert at the displacement end of the vertical displacement mechanism, and the insert at the displacement end of the vertical displacement mechanism has a fifth threaded blind hole at the corresponding position. The second screw is screwed into the fourth threaded through hole 15 and the fifth threaded blind hole respectively.

[0045] This configuration provides auxiliary fixation for the plug-in detachable connection between the part-retrieving connecting assembly 2 and the vertical displacement mechanism 20. Specifically, after the part-retrieving connecting assembly 2 and the vertical displacement mechanism 20 are inserted and fixed, the part-retrieving connecting assembly 2 is prevented from slipping by screwing the second screw into the fourth threaded through hole 15 and the fifth threaded blind hole.

[0046] Example 6

[0047] Based on the lifting-type photopolymer printer part-picking mechanism of Embodiment 1, such as Figures 1 to 3 As shown, a pair of handles 16 are provided on opposite sidewalls of the part-retrieving connection assembly 2.

[0048] This setting allows users to easily move and hold the handle 16 when maintaining or replacing the part-retrieving connection component 2.

[0049] Example 7

[0050] Based on the lifting-type photopolymer printer part-picking mechanism of Embodiment 1, such as Figure 1 and Figure 2 As shown, the spring 9 is sleeved on the ejector pin 4.

[0051] This design saves installation space for spring 9 and allows pin 4 to act as a telescopic limit post for spring 9, thereby preventing the possibility of side slippage or deflection when spring 9 provides elastic force, making the elastic force supply more stable.

[0052] This utility model provides a guide post 7, the cross-section of which is one of the following: cross-shaped, X-shaped, regular polygonal, circular, elliptical, plum blossom-shaped, star-shaped, or irregular polygonal.

[0053] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A component-retrieving mechanism for a lifting-type photopolymer printer, characterized in that, include: A fixed limiting block (1) located above the resin tank, and a part-removing connecting assembly (2) driven by a vertical displacement mechanism (20); a ejector plate (3) is provided below the part-removing connecting assembly (2), the top surface of the ejector plate (3) at least covers a part of the bottom area of ​​the limiting block (1); the ejector plate (3) is provided with several downwardly positioned ejector pins (4); a molding substrate (5) is provided below the ejector plate (3) and is provided with ejector pin through holes (6), the number and position of the ejector pin through holes (6) at least covering the several ejector pins (4); The molding substrate (5) has a guide post (7) on the side facing the ejector plate (3). The ejector plate (3) has a guide post hole (8) that matches the guide post (7) at the corresponding position. The guide post (7) passes through the guide post hole (8) and is fixed or detachably fixed to the bottom of the part taking connection assembly (2). A spring (9) is provided between the top surface of the molding substrate (5) and the bottom surface of the ejector plate (3).

2. The part-retrieving mechanism for a lifting-type photopolymer printer according to claim 1, characterized in that, The ejector plate (3) has several first threaded holes (10) along the vertical direction, and the top of the ejector (4) has a first thread that matches the first threaded holes (10); the ejector (4) is screwed and fastened to the first threaded holes (10) through the first thread.

3. The part-retrieving mechanism for a lifting-type photopolymer printer according to claim 1, characterized in that, The bottom of the part-retrieving connection assembly (2) is provided with a second threaded hole (11), and the guide post (7) is provided with a third threaded hole (12) in the vertical direction. The first screw (13) is provided with a second thread and a third thread corresponding to the second threaded hole (11) and the third threaded hole (12) respectively. The first screw (13) is screwed and fastened to the second threaded hole (11) through the second thread and to the third threaded hole (12) through the third thread, so that the guide post (7) is detachably and fixedly connected to the bottom of the part-retrieving connection assembly (2).

4. The part-retrieving mechanism for a lifting-type photopolymer printer according to claim 3, characterized in that, The second threaded hole (11) and the third threaded hole (12) have the same hole diameter and internal thread structure. The second thread and the third thread of the first screw (13) are the same and match the internal threads of the second threaded hole (11) and the third threaded hole (12).

5. The part-retrieving mechanism for a lifting-type photopolymer printer according to claim 1, characterized in that, The component picking connection assembly (2) has a slot (14) on the side facing the vertical displacement mechanism, and is plugged into the displacement end of the vertical displacement mechanism through the slot (14).

6. The part-retrieving mechanism for a lifting-type photopolymer printer according to claim 5, characterized in that, The component taking connection assembly (2) has at least one fourth threaded through hole (15) along the cross-sectional direction of the plug at the displacement end of the vertical displacement mechanism, and the plug at the displacement end of the vertical displacement mechanism has a fifth threaded blind hole at the corresponding position; the second screw is screwed into the fourth threaded through hole (15) and the fifth threaded blind hole respectively.

7. The part-retrieving mechanism for a lifting-type photopolymer printer according to claim 1, characterized in that, A pair of handles (16) are provided on opposite sidewalls of the part-retrieving connection assembly (2).

8. The part-retrieving mechanism for a lifting-type photopolymer printer according to claim 1, characterized in that, The spring (9) is sleeved on the ejector pin (4).

9. The part-retrieving mechanism for a lifting-type photopolymer printer according to claim 1, characterized in that, The cross-section of the guide post (7) is one of the following: cross-shaped, X-shaped, polygonal, circular, elliptical, plum blossom-shaped, or star-shaped.

Images