Screen platform structure for a printing apparatus

Abstract

The utility model provides a gauze platform structure of printing equipment belongs to 3D printing technical field, the utility model discloses a gauze is covered on the printing face and is through the push pressure slider and is with the gauze edge's hanging hole is hung on the corresponding lug, and after loosening the slider, the gauze is pulled tight through the reset of spring, not only simple structure, low in cost, convenient to use, but also be favorable to disinfection, adapt medical product processing, in addition, still through the micropore on the gauze for material infiltration solidification, increase the adhesion, improve the adhesion of printing object on the forming platform and the success rate of adhesion, satisfy the printing demand of the biological material of poor adhesion, and still through the gauze reduces the printing face damage risk, guarantees the quality of printing product.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing technology, specifically to a mesh platform structure for a printing device. Background Technology

[0002] 3D printing technology can improve efficient and precise manufacturing capabilities, achieve integrated molding of complex structures, improve material utilization, and reduce product manufacturing costs. Therefore, it is gradually being widely used in the manufacturing industry. As the printing equipment that enables 3D printing, ensuring its excellent performance has become the focus of industry research.

[0003] Currently, existing 3D printing equipment on the market, such as the photopolymer 3D printer disclosed in patent application CN110884131A, has a material trough installed on its base plate. A forming platform plate is positioned above the material trough, with the plane of the forming platform plate facing the material trough serving as the forming surface. A vertical moving component is connected to the forming platform plate, controlling its vertical movement. This vertical moving component is connected to the forming platform plate via a connector. During the layer-by-layer forming of the three-dimensional object, the cured layers need to be reliably bonded to the forming surface of the forming platform. The vertical moving component drives the forming platform plate to rise layer by layer, thus meeting the printing requirements of the entire product. After printing, the printed product needs to be removed from the forming surface, and the forming surface needs to be cleaned. While the above structure meets the printing requirements, the smooth surface structure makes it difficult for some printing materials with poor adhesion to bond to the forming surface. For example, some biomaterials with poor adhesion, such as hydrogels, may experience insufficient adhesion between the first layer and the forming surface during printing, affecting the printing process and the quality of subsequent printed products. In addition, after each operation, the printed product needs to be removed from the forming surface using tools such as a scraper and the forming surface needs to be cleaned directly. This can easily cause wear and scratches to the forming platform, affecting manufacturing accuracy and impacting the production of printed products. Summary of the Invention

[0004] To address the aforementioned problems in existing technologies, this invention aims to provide a screen platform structure for a printing device. This structure includes a forming platform with a slider, which is spring-loaded. The slider has several hanging ears and a screen with pull tabs. In use, the slider is pushed to deform the spring, and the pull tabs are hooked onto the hanging ears. Releasing the slider allows it to return to its original position under the spring's action, thus tightening the screen through the pull tabs. This effectively covers the forming platform with a taut screen. The micropores in the screen allow material to penetrate and solidify, effectively increasing adhesion and improving the success rate of the printed object's adhesion to the forming platform, ensuring print quality. Furthermore, the screen can be replaced by pressing down on the slider or by the slider automatically resetting. The structure is simple, low-cost, easy to operate, and easy to sterilize, meeting the manufacturing requirements of medical products. Additionally, the screen protects the surface of the forming platform, facilitating the removal of the printed object, preventing surface damage, and ensuring product manufacturing precision.

[0005] The specific technical solution is as follows: A screen platform structure for a printing device includes a forming platform, and further includes: The slider is located on the side of the forming platform away from its printing surface. The slider moves away from or towards the printing surface of the forming platform. Several hanging ears are provided on the outer peripheral wall of the slider. A spring is positioned between the slider and the forming platform, with its two ends abutting against the forming platform and the slider, respectively. The mesh covers the printing surface in the middle, and the edge of the mesh is folded over towards the slider and connected to the hanging ear.

[0006] The above-mentioned screen platform structure of a printing device has several hanging holes on the edge of the screen that correspond one-to-one with the hanging ears.

[0007] The screen platform structure of the above-mentioned printing device further includes several clamping edges, all of which are installed on the edge of the screen and clamp the edge of the screen.

[0008] The above-mentioned screen platform structure of a printing device includes an outer clamping plate and an inner clamping plate, which are respectively disposed on both sides of the edge of the screen. Both the outer clamping plate and the inner clamping plate are provided with mating holes, and when the clamping plate is installed on the edge of the screen, the two mating holes are aligned with the corresponding hanging holes.

[0009] The screen platform structure of the above-mentioned printing device further includes a pin, which is installed on the side of the forming platform away from the printing surface, and a sliding hole is provided on the slider, which is sleeved on the pin.

[0010] In the above-mentioned screen platform structure of a printing device, a spring is sleeved outside the pin, and grooves are provided on the opposite side of the forming platform and the slider, with the two ends of the spring extending into the grooves on the forming platform and the slider, respectively.

[0011] In the aforementioned screen platform structure of a printing device, each lug has a protruding retaining edge on its end edge away from the slider.

[0012] In the above-mentioned screen platform structure of a printing device, each hanging ear is a long strip structure, and each hanging ear is arranged along the length direction of the side edge of the forming platform. At the same time, the hanging holes on the edge of the screen are also long strip holes corresponding to the hanging ears.

[0013] In the above-mentioned screen platform structure of a printing device, a protruding mounting part is provided on the side of the forming platform away from the printing surface. The mounting part is connected to the heat-conducting block of the printing device. The slider is provided with a clearance hole. When the slider is installed on one side of the forming platform, the clearance hole is fitted outside the mounting part.

[0014] In the above-mentioned screen platform structure of a printing device, a printing surface adapter block is selectively installed on the side of the forming platform away from the slider, and the printing surface adapter block is provided with various sizes and models.

[0015] The positive effects of the above technical solution are: The aforementioned screen platform structure of the printing device features a slider positioned near or away from the printing surface on the side of the forming platform opposite to the printing surface. A spring connects the slider to the forming platform. Several lugs are located on the outer periphery of the slider, and a screen with hanging holes along its edges is provided. In use, the screen is placed over the printing surface of the forming platform, and the hanging holes along the edges of the screen are aligned with the lugs on the slider. The sliding mechanism facilitates the engagement of the hanging holes and lugs by pushing the slider and releasing it, allowing it to return to its original position under spring pressure. The mesh is easy to install and remove, meeting the need for quick replacement. Its simple structure, low cost, and ease of use facilitate sterilization and meet the processing requirements of medical products. Furthermore, the micropores in the mesh allow material to penetrate and solidify, effectively increasing adhesion and improving the success rate of the printed object adhering to the forming platform, ensuring print quality and better meeting the printing needs of printing materials with inherently poor adhesion. Simultaneously, the mesh protects the printing surface of the forming platform, facilitating the removal of the printed object, reducing the risk of damage to the printing surface, and ensuring product manufacturing precision. Attached Figure Description

[0016] Figure 1 This is a structural diagram of an embodiment of the screen platform structure of a printing device according to the present invention; Figure 2This is a schematic diagram showing the installation of the forming platform, slider, and spring in the screen platform structure of a printing device according to this utility model. Figure 3 This is a structural diagram of the mesh of a printing device according to the present invention; Figure 4 This is a schematic diagram showing the installation of the slider and spring in the screen platform structure of a printing device according to this utility model.

[0017] In the attached diagram: 1. Forming platform; 11. Mounting part; 2. Slider; 21. Hanging lug; 22. Sliding hole; 23. Clearance hole; 211. Stop edge; 3. Spring; 4. Mesh; 41. Hanging hole; 42. Clamping edge; 421. Outer clamping plate; 422. Inner clamping plate; 423. Mating hole; 5. Pin; 51. Slot; 6. Heat-conducting block; 7. Printing surface adapter block. Detailed Implementation

[0018] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following embodiments are provided in conjunction with the appendix. Figure 1 To be continued Figure 4 The technical solution provided by this utility model is described in detail, but the following content is not intended to limit this utility model.

[0019] Figure 1 This is a structural diagram of an embodiment of the screen platform structure of a printing device according to the present invention; Figure 2 This is a schematic diagram illustrating the installation of the forming platform, slider, and spring in the screen platform structure of a printing device according to this utility model. Figure 1 and Figure 2 As shown, the screen platform structure of the printing device provided in this embodiment includes: a forming platform 1, a slider 2, a spring 3, and a screen 4. At this time, the forming platform 1 is used for the attachment and forming of printing material, providing a forming base for the printed object.

[0020] Specifically, the slider 2 is positioned on the side of the forming platform 1 away from its printing surface, preventing the slider 2 from obstructing the printing surface of the forming platform 1 and meeting the needs of directly using the printing surface of the forming platform 1 or using it after installing an adapter block on the printing surface. Furthermore, the slider 2's movement away from or towards the printing surface of the forming platform 1 provides a means for tightening the mesh 4 when the slider 2 moves away from the printing surface to meet printing requirements, and for loosening the mesh 4 when the slider 2 moves closer to the printing surface to facilitate mesh 4 replacement. In addition, several lugs 21 are provided on the outer peripheral wall of the slider 2, forming a connecting part on the outer peripheral wall of the slider 2, providing a means for subsequently tightening the mesh 4 after hooking its edge.

[0021] Specifically, spring 3 is positioned between slider 2 and forming platform 1, with both ends of spring 3 abutting against forming platform 1 and slider 2 respectively. Spring 3 pushes slider 2 away from the printing surface, meaning that when slider 2 is not subjected to other external forces, slider 2 can move away from the printing surface. This allows slider 2 to pull the edge of mesh 4 away from the printing surface when the mesh 4 is covered by the printing surface and its edge is held by the lug 21 on slider 2, thus tightening mesh 4 and achieving stable coverage of mesh 4 on forming platform 1. When other external forces push slider 2, causing spring 3 to be compressed and deformed so that slider 2 moves closer to the printing surface, slider 2 relaxes the edge of mesh 4, making mesh 4 in a relaxed state. This facilitates the removal of mesh 4 from lug 21 and forming platform 1, meeting the need for quick and convenient replacement of mesh 4, and making the structural design more reasonable.

[0022] Figure 3 This is a structural diagram of the mesh of a printing device according to this utility model. Figure 1 and Figure 3 As shown, the middle part of the mesh 4 covers the printing surface, and the edge of the mesh 4 is folded towards the slider 2 and connected to the hanging ear 21, thus connecting the mesh 4 and the slider 2. In use, the slider 2, under the action of the spring 3, pulls the edge of the mesh 4 away from the printing surface, tightening the mesh 4 and stably laying the middle part of the mesh 4 flat on the printing surface. When it is necessary to replace the mesh 4, external force can be applied to the slider 2, causing it to compress the spring 3 and move towards the printing surface, thereby loosening the edge of the mesh 4 and achieving overall loosening of the mesh 4, making it easier to remove the edge of the mesh 4 from the hanging ear 21. The screen 4 is not only simple in structure, easy to use, and low in cost, but also facilitates the cleaning of the forming platform 1 by replacing the screen 4, meeting the processing requirements of medical products. At the same time, the screen protects the printing surface, making it easy to remove the printed items and avoiding structural wear and scratches caused by long-term use, thus ensuring processing accuracy. In addition, the micropores on the screen 4 facilitate material penetration and curing, effectively increasing adhesion and improving the success rate of the printed object adhering to the forming platform 1. This better meets the printing needs of biomaterials with poor adhesion, such as hydrogels, ensuring the smooth progress of the printing process.

[0023] More specifically, several hanging holes 41 corresponding to the hanging ears 21 are provided on the edge of the mesh 4. The mesh 4 and the slider 2 are connected by the hanging holes 41 and the hanging ears 21, so as to meet the needs of quick assembly and disassembly.

[0024] More specifically, several clamping edges 42 are installed on the edge of the mesh 4. The clamping edges 42 clamp the edge of the mesh 4, which improves the structural strength of the edge of the mesh 4. This makes it less likely to be damaged when the mesh 4 is pulled tight by the slider 2. At the same time, it also allows the edge of the mesh 4 to be fully unfolded and not easily deformed, making it convenient to hang the edge of the mesh 4 on the corresponding hanging ear 21 or remove it from the corresponding hanging ear 21, making it more convenient to use.

[0025] More specifically, the clamping edge 42 installed on the edge of the mesh 4 includes an outer clamping plate 421 and an inner clamping plate 422. In this case, the outer clamping plate 421 and the inner clamping plate 422 are respectively set on both sides of the edge of the mesh 4, so that both sides of the edge of the mesh 4 have a reinforcing structure and can support the mesh 4, resulting in a more reasonable structural design. Furthermore, both the outer clamping plate 421 and the inner clamping plate 422 have mating holes 423, and when the clamping edge 42 is installed on the edge of the mesh 4, the two mating holes 423 are aligned with the corresponding hanging holes 41, allowing the clamping plates to be simultaneously hung on the hanging ears 21, making it more convenient to use. Preferably, both the outer clamping plate 421 and the inner clamping plate 422 are sheet metal parts, which have higher structural strength and facilitate the loading and unloading of the mesh 4 on the hanging ears 21 of the slider 2. Alternatively, the outer clamping plate 421 and the inner clamping plate 422 can also be plastic parts, which reduces costs and makes manufacturing easier. It is worth noting that the connection between the outer clamping plate 421 and the inner clamping plate 422 of the clamping edge 42 includes, but is not limited to, adhesive connection and screw connection, which are sufficient to clamp the edge of the mesh 4 located between them. In addition, when using plastic materials for the outer clamping plate 421 and the inner clamping plate 422, the outer clamping plate 421 and the inner clamping plate 422 can be connected to the edge of the mesh 4 by ultrasonic welding, which can reduce costs, improve precision, and make the structural design more reasonable.

[0026] Figure 4 This is a schematic diagram showing the installation of the slider and spring in the screen platform structure of a printing device according to this utility model. Figure 1 , Figure 2 as well as Figure 4 As shown, a pin 5 is also installed on the side of the forming platform 1 away from the printing surface. At this time, the pin 5 is arranged along the moving direction of the slider 2, and a sliding hole 22 is opened on the slider 2. During installation, the sliding hole 22 is fitted over the pin 5. The pin 5 guides the movement of the slider 2, ensuring the smooth movement of the slider 2.

[0027] More specifically, the spring 3 is sleeved on the pin 5, which provides a stable mounting for the spring 3 between the slider 2 and the forming platform 1, preventing the spring 3 from coming off during use and making the structure more reliable. In addition, grooves 51 are provided on the opposite sides of the forming platform 1 and the slider 2, and the two ends of the spring 3 extend into the grooves 51 on the forming platform 1 and the slider 2 respectively. The grooves 51 limit the ends of the spring 3, preventing the ends of the spring 3 from shifting during use and causing uneven force on the slider 2, maintaining the smooth movement of the slider 2 and a more uniform tension on the mesh 4.

[0028] More specifically, each of the hanging ears 21 has a protruding retaining edge 211 on the end edge away from the slider 2. The retaining edge 211 extends toward the side away from the printing surface, so that when the edge of the mesh 4 is hung on the corresponding hanging ear 21 through the hanging hole 41, the edge of the mesh 4 can be restricted by the retaining edge 211 to prevent the hanging hole 41 from accidentally falling off the hanging ear 21, and to ensure that the mesh 4 can be more stable and reliable after being tightened.

[0029] More specifically, each lug 21 on the slider 2 is a long strip structure, and each lug 21 is arranged along the length of the side edge of the forming platform 1, so that the lug 21 has a sufficiently long stroke to cooperate in tightening the edge of the mesh 4. At the same time, the hanging holes 41 on the edge of the mesh 4 are also long strip holes corresponding to the lug 21, so that more parts of the edge of the mesh 4 are tightened by the lug 21, making the mesh 4 flatter after being laid out, with more uniform force, and better coverage on the printing surface.

[0030] More specifically, a protruding mounting part 11 is provided on the side of the forming platform 1 facing away from the printing surface. This mounting part 11 connects to the heat-conducting block 6 of the printing device, achieving stable installation of the forming platform 1. Preferably, the mounting part 11 is located at the center of the forming platform 1 and is an integral structure with the forming platform 1, resulting in better overall structural integrity and higher structural strength. In this case, a clearance hole 23 is provided in the middle of the slider 2. When the slider 2 is installed on one side of the forming platform 1, it fits over the mounting part 11 through the clearance hole 23, allowing the slider 2 to be positioned between the forming platform 1 and the heat-conducting block 6 and to move between them. This achieves limiting of the slider 2 on both sides, preventing the slider 2 from coming off during use and further improving structural stability and reliability.

[0031] More specifically, a printing surface adapter block 7 is selectively installed on the side of the forming platform 1 away from the slider 2. The printing surface adapter block 7 is available in various sizes. When in use, the appropriate size of the printing surface adapter block 7 is selected and installed on the forming platform 1 according to the processing requirements, thereby meeting the printing needs of products of different specifications.

[0032] The screen platform structure of the printing device provided in this embodiment includes a forming platform 1, a slider 2, a spring 3, and a screen 4. A slider 2 is provided on the side of the forming platform 1 facing away from the printing surface, positioned close to or away from the printing surface. A spring 3 is provided between the forming platform 1 and the slider 2. An extended hanging ear 21 is provided on the outer peripheral wall of the slider 2. Hanging holes 41 are provided on the edge of the screen 4 and are fitted with the hanging ears 21. The screen 4 is covered on the printing surface, and the hanging holes 41 on the edge of the screen 4 are hung on the corresponding hanging ears 2 by pushing the slider 2. On the printing platform 1, after the slider 2 is released, the spring 3 returns the mesh 4 to its original position, thus achieving stable installation of the mesh 4 on the printing surface. This design is not only simple in structure, low in cost, and easy to use, but also facilitates sterilization and is suitable for medical product processing. In addition, the micropores on the mesh 4 allow material to penetrate and solidify, increasing adhesion and improving the success rate of the printed object's adhesion to the printing platform 1. This is suitable for printing biological materials with poor adhesion. Furthermore, the mesh 4 protects the printing surface, reducing the risk of damage and ensuring the quality of the printed product.

[0033] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A screen platform structure for a printing device, comprising a forming platform, characterized in that, include: A slider is disposed on the side of the forming platform away from its printing surface. The slider moves away from or towards the printing surface of the forming platform. Several hanging ears are provided on the outer peripheral wall of the slider. A spring is disposed between the slider and the forming platform, with both ends of the spring abutting against the forming platform and the slider, respectively. A mesh screen, the middle of which covers the printing surface, and the edge of the mesh screen is folded towards the slider and connected to the hanging ear.

2. The screen platform structure of the printing device according to claim 1, characterized in that, The edge of the mesh has several hanging holes that correspond one-to-one with the hanging ears.

3. The screen platform structure of the printing device according to claim 2, characterized in that, It also includes several clamping edges, all of which are installed on the edge of the mesh, and the clamping edges clamp the edge of the mesh.

4. The screen platform structure of the printing device according to claim 3, characterized in that, The clamping edge includes an outer clamping plate and an inner clamping plate, which are respectively disposed on both sides of the edge of the mesh. Both the outer clamping plate and the inner clamping plate are provided with mating holes, and when the clamping edge is installed on the edge of the mesh, the two mating holes are aligned with the corresponding hanging holes.

5. The screen platform structure of the printing device according to claim 1, characterized in that, It also includes a pin, which is installed on the side of the forming platform away from the printing surface, and the slider has a sliding hole that is sleeved on the pin.

6. The screen platform structure of the printing device according to claim 5, characterized in that, The spring is sleeved outside the pin, and grooves are provided on the opposite sides of the forming platform and the slider. The two ends of the spring extend into the grooves on the forming platform and the slider, respectively.

7. The screen platform structure of the printing device according to claim 1, characterized in that, Each lug has a protruding retaining edge on the end edge away from the slider.

8. The screen platform structure of the printing device according to claim 2, characterized in that, Each of the aforementioned hanging ears is a long strip structure, and each of the aforementioned hanging ears is arranged along the length direction of the side edge of the forming platform. At the same time, the hanging holes on the edge of the mesh are also long strip holes corresponding to the hanging ears.

9. The screen platform structure of the printing device according to claim 1, characterized in that, The forming platform has a protruding mounting part on the side away from the printing surface. The mounting part is connected to the heat-conducting block of the printing device. The slider has a clearance hole. When the slider is installed on one side of the forming platform, the clearance hole is fitted outside the mounting part.

10. The screen platform structure of the printing device according to claim 1, characterized in that, The molding platform is selectively equipped with a printing surface adapter block on the side opposite to the slider, and the printing surface adapter block is available in several different sizes.

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