Forming barrel structure capable of adjusting printing area

Abstract

The utility model discloses a forming barrel structure capable of adjusting printing area, which comprises an outer cover and a bottom frame, the upper end of the outer cover is provided with an annular connecting plate, the connecting plate is detachably connected with an annular upper adapter block, the bottom frame is detachably connected with an annular lower adapter block, and a barrel body is arranged in the outer cover; the barrel bodies have a plurality of different sizes and specifications and are detachably connected between the upper adapter blocks and the lower adapter blocks or detachably connected between the connecting plate and the lower adapter blocks, the barrel bodies of different sizes correspond to the upper adapter blocks and the lower adapter blocks of different sizes, the upper adapter blocks of different sizes can be installed on the connecting plate in a replaceable mode, and the lower adapter blocks of different sizes can be installed on the connecting plate in a replaceable mode. And the lower adapter blocks with different sizes can be mounted on the bottom frame in a replaceable manner. The utility model has the advantages that the utilization rate of resources can be improved, the overall cost is reduced, and the use experience of users and the flexibility of equipment are improved.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing technology, and in particular to a molding barrel structure with adjustable printing area. Background Technology

[0002] Among the many fields of 3D printing technology, 3D printers based on selective laser sintering (SLS) technology have become a favored solution in industrial production and rapid prototyping due to their excellent material utilization and forming accuracy. However, the application of SLS technology is also accompanied by some technical bottlenecks, especially in the use of powder materials and the design of support structures.

[0003] In SLS printing, the powder material is not only part of the model but also serves as its supporting structure. After printing, unsintered powder needs to be cleaned up, but this often results in a significant waste of unused powder. Even for printing small models, the entire printing area still needs to be covered with powder to provide sufficient support, leading to unnecessary resource losses in terms of material consumption for the actual printed model.

[0004] Currently, most common printing drum designs on the market do not consider users' customized printing area needs, instead using fixed-size printing drums. Different sized printing drums require specific sized printing platforms, limiting user flexibility and adaptability. Because frequent disassembly and reassembly of several key components of the printing platform and printer are inconvenient during use, users are often forced to replace the entire printing platform, which not only increases operating costs but also reduces equipment efficiency. Furthermore, the printer itself usually needs to be compatible with the printing platform, meaning that when printing drum replacement is required, the entire printing system must be updated, further increasing investment and maintenance costs.

[0005] Therefore, it is necessary to further improve and perfect the existing technology to overcome these shortcomings, and this utility model is made based on this situation. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a molded barrel structure with adjustable printing area that can improve resource utilization, reduce overall costs, and enhance user experience and equipment flexibility.

[0007] This utility model is achieved through the following technical solution:

[0008] To solve the above technical problems, this utility model provides a molding barrel structure with adjustable printing area, including an outer cover and a bottom frame. The upper end of the outer cover is provided with an annular connecting plate, and an annular upper connecting block is detachably connected to the connecting plate. An annular lower connecting block is detachably connected to the bottom frame, and a barrel body is provided inside the outer cover.

[0009] The barrel has several different sizes and can be detachably connected between the upper and lower adapter blocks, or detachably connected between the connecting plate and the lower adapter block. Different sizes of barrels correspond to different sizes of upper and lower adapter blocks. Different sizes of upper adapter blocks can be replaced and installed on the connecting plate, and different sizes of lower adapter blocks can be replaced and installed on the bottom frame.

[0010] In order to further solve the technical problem to be solved by this utility model, in the molding barrel structure with adjustable printing area provided by this utility model, the inner ring size of the upper adapter block of different sizes is different while the outer ring size is the same, and the inner ring size of the lower adapter block of different sizes is different while the outer ring size is the same.

[0011] In order to further solve the technical problem to be solved by this utility model, the present utility model provides a molding barrel structure with adjustable printing area, wherein the upper adapter block or connecting plate is sleeved on the barrel body from top to bottom and is detachably connected together by fasteners, and the connecting plate and the outer cover, as well as the upper adapter block and the connecting plate, are also detachably connected together by fasteners.

[0012] In order to further solve the technical problem to be solved by this utility model, this utility model provides a molding barrel structure with adjustable printing area, wherein the lower adapter block is fitted onto the barrel body from bottom to top and is detachably connected together by fasteners, and the bottom frame is fitted onto the lower adapter block and is detachably connected together by fasteners.

[0013] In order to further solve the technical problem to be solved by this utility model, this utility model provides a molding barrel structure with adjustable printing area, wherein the connecting plate is sleeved on the upper adapter block from top to bottom and is detachably connected together by fasteners.

[0014] In order to further solve the technical problems to be solved by this utility model, this utility model provides a molding barrel structure with adjustable printing area, wherein the top of the outer cover is provided with a printing platform positioning structure that can dock with the printing platform.

[0015] In order to further solve the technical problem to be solved by this utility model, the present utility model provides a molding barrel structure with adjustable printing area, wherein the bottom frame is provided with a lifting platform positioning structure that can dock with the molding barrel lifting platform.

[0016] In order to further solve the technical problem to be solved by this utility model, this utility model provides a molding barrel structure with adjustable printing area, wherein the barrel body is provided with a bottom plate that can be raised and lowered therein, and the bottom of the bottom plate is provided with a bottom plate locking structure that can dock with the bottom plate lifting platform.

[0017] To further address the technical problems to be solved by this utility model, this utility model provides a molding barrel structure with adjustable printing area, wherein each side wall of the barrel body is provided with a sandwich layer, and a first heating module is provided in the sandwich layer, and a first electric heating port is provided on the bottom frame, and the first electric heating port and the first heating module are detachably connected by wires.

[0018] In order to further solve the technical problem to be solved by this utility model, the present utility model provides a molding barrel structure with adjustable printing area, wherein the bottom plate is also provided with a sandwich layer, the sandwich layer is provided with a second heating module, and the bottom of the bottom plate is provided with a second electric heating port electrically connected to the second heating module.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] In this invention, the barrel is designed with various sizes to accommodate different printing needs. Upper adapter blocks of different sizes can be replaced and mounted on the connecting plate, while lower adapter blocks of different sizes can be replaced and mounted on the base frame. This modular design allows for printing different sizes or quantities of products simply by replacing the appropriate barrel and the corresponding upper and lower adapter blocks, without needing to replace the entire printing platform or other parts of the printer. This design not only greatly simplifies the replacement process and reduces operational difficulty, but also effectively reduces potential additional costs during replacement. Furthermore, by avoiding the need to replace the printing platform and the printer itself, this structure helps to further reduce the overall maintenance and operating costs of the equipment. Through this innovative adjustable barrel structure, users can flexibly select the appropriate printing area and support structure according to specific printing tasks, thereby achieving efficient resource utilization and improved printing efficiency. Attached Figure Description

[0021] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0022] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 This is one of the exploded schematic diagrams of this utility model (small barrel);

[0024] Figure 3 This is the second exploded view of this utility model (large barrel body);

[0025] Figure 4 This is an exploded view of the barrel. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] like Figures 1 to 4 As shown, this embodiment proposes a molding barrel structure with adjustable printing area. This design aims to improve the flexibility and material utilization efficiency of 3D printing equipment. The structure mainly includes an outer cover 1 and a bottom frame 2. The upper end of the outer cover 1 is connected to an annular connecting plate 3, and an annular upper adapter block 4 is detachably installed on the connecting plate 3. An annular lower adapter block 5 is detachably installed on the bottom frame 2. A barrel body 6 is provided inside the outer cover 1.

[0028] The barrel 6 is designed to be available in various sizes to accommodate different printing needs. The barrel 6 is detachably mounted between the upper adapter block 4 and the lower adapter block 5 (see [link]). Figure 2 For larger barrels 6, they can also be directly connected between the connecting plate 3 and the lower adapter block 5 (see...). Figure 3 This multi-specification design allows the barrel 6 to flexibly meet the needs of different printing tasks.

[0029] Each barrel 6 of different sizes corresponds to an upper adapter block 4 and a lower adapter block 5 of different sizes. Specifically, upper adapter blocks 4 of different sizes can be replaced and installed on the connecting plate 3, while lower adapter blocks 5 of different sizes can be replaced and installed on the base frame 2. This modular design allows for printing different sizes or quantities of products by simply replacing the appropriate barrel 6 and the corresponding upper and lower adapter blocks 4 and 5, without having to replace the entire printing platform or other parts of the printer.

[0030] This design not only greatly simplifies the replacement process and reduces operational difficulty, but also effectively reduces potential additional costs during replacement. Furthermore, by avoiding the need to replace the printing platform and the printer itself, this structure helps to further reduce the overall maintenance and operating costs of the equipment.

[0031] With this innovative adjustable forming barrel structure, users can flexibly select the appropriate printing area and support structure according to the specific printing task, thereby achieving efficient resource utilization and improved printing efficiency.

[0032] Furthermore, the upper adapter block 4 and lower adapter block 5 designed in this embodiment adopt an innovative size configuration to ensure the modularity and compatibility of the system. Specifically, the inner ring size of the upper adapter block 4 of different sizes is different, while the outer ring size is consistent; similarly, the inner ring size of the lower adapter block 5 of different sizes is also different, while the outer ring size is fixed.

[0033] The reason for this design is that the inner ring dimensions of the upper adapter block 4 and the lower adapter block 5 need to be precisely matched with the dimensions of the barrel body 6. Since the barrel body 6 offers a variety of different sizes, the inner ring dimensions of the upper adapter block 4 and the lower adapter block 5 also need to be adjusted accordingly based on the specific dimensions of the barrel body 6 to ensure a tight fit and stable connection.

[0034] On the other hand, the outer ring of the upper adapter block 4 matches the connecting plate 3, while the outer ring of the lower adapter block 5 matches the bottom frame 2. This means that regardless of how the size of the barrel 6 changes, the outer ring dimensions of the upper adapter block 4 and the lower adapter block 5 remain unchanged, thus enabling a standardized connection with the connecting plate 3 and the bottom frame 2. This design not only simplifies the replacement and installation of components but also improves the stability and compatibility of the system.

[0035] Furthermore, the upper adapter block 4 is fitted onto the barrel body 6 from top to bottom and is detachably connected using fasteners. The upper adapter block 4 has a step inside; the upper step can fit onto the corresponding barrel body 6, and the lower step has holes on its side wall for inserting screws to connect with the connecting plate 3. For larger barrel bodies 6, such as... Figure 3 As shown, the connecting plate 3 can be directly fitted onto the barrel 6 from top to bottom and is detachably connected using fasteners, without the need for the upper adapter block 4. This connection method ensures the flexibility and ease of disassembly of the components, allowing users to adjust and maintain them as needed. The fasteners can be common types such as screws for easy installation and removal.

[0036] Furthermore, the connections between the connecting plate 3 and the outer cover 1, as well as between the upper adapter block 4 and the connecting plate 3 (the connecting plate 3 can also be fitted onto the upper adapter block 4 from top to bottom and secured with fasteners), also employ a detachable method, such as connection via fasteners. This design facilitates the replacement or removal of specific components, meeting the usage requirements of different occasions.

[0037] Furthermore, the lower adapter block 5 is fitted onto the barrel body 6 from the bottom up and is detachably connected to the barrel body using fasteners. The bottom frame 2 is fitted onto the lower adapter block 5 from the outside and is also held together by fasteners. This bottom-up installation method allows for flexible disassembly and reassembly of the bottom frame and the lower adapter block.

[0038] These detachable connection methods not only make the entire system easier to assemble, but also greatly enhance its applicability and ease of maintenance, providing users with a flexible and reliable installation solution.

[0039] Furthermore, the outer cover 1 includes several surrounding panels 12, which are detachably connected to each other to form a whole outer cover 1. This modular design makes the installation and disassembly of the outer cover 1 very simple.

[0040] The outer cover 1 can be easily disassembled into several independent panels 12. When the user needs to replace the barrel 6 or the upper adapter block 4, they can easily access and handle the internal components by simply removing some of the panels 12. The connection between the panels 12 is usually made of screws or other similar fasteners, which not only ensures the strength of the connection, but also ensures the convenience of the disassembly and assembly process.

[0041] The specific structure for the connection between the forming barrel and other printer components is as follows:

[0042] Furthermore, the top of the outer casing 1 is designed with a dedicated printing platform positioning structure for docking with the printing platform. Specifically, this positioning structure consists of several positioning pins 11, which are evenly distributed around the perimeter of the top surface of the outer casing 1. The positioning pins 11 are designed to fit tightly with corresponding positioning holes on the printing platform to ensure precise docking between the forming barrel and the printing platform. To achieve standardized operation, the size and position of these positioning pins 11 adopt fixed standard specifications for ease of manufacturing and maintenance.

[0043] In addition, a lifting platform positioning structure for docking with the forming barrel lifting platform is provided on the base frame 2. Specifically, this structure includes wedge blocks 21 on both sides of the base frame 2. The wedge blocks 21 cooperate with corresponding wedge grooves on the forming barrel lifting platform to achieve a stable clamping of the forming barrel. Similar to the positioning pin 11, the wedge blocks 21 also adopt standard dimensions and positions to ensure high compatibility and efficient docking between different components.

[0044] Inside the bucket body 6, a base plate 61 that can be raised and lowered within the bucket is also provided. The bottom of the base plate 61 is equipped with a base plate locking structure for docking with the base plate lifting platform. This locking structure is specifically designed to cooperate with the corresponding bucket locking mechanism on the base plate lifting platform, facilitating the detachable connection and lifting operation of the base plate 61. The design of the base plate locking structure also follows standardized structural, dimensional, and positional requirements for unified management and operation.

[0045] More specifically, the base plate locking structure consists of a locking plate 62 provided on the base plate 61. The locking plate 62 is provided with a mortise hole 621, and is provided with a movable locking tongue and an elastic return member (such as a spring) that presses the locking tongue in the direction of the mortise hole 621.

[0046] The barrel structure also incorporates a heating mechanism to ensure precise temperature control during 3D printing. Specifically, the sidewalls of the barrel 6 have an embedded sandwich structure that houses the first heating module 63 (such as a heating wire). The bottom frame 2 is equipped with a first electric heating port 22, which is detachably connected to the first heating module 63 via a wire for easy maintenance and replacement. This design allows the first heating module 63 to effectively heat and maintain the temperature of the barrel 6 from all sides, providing a stable temperature environment for the 3D printing material and ensuring print quality.

[0047] Furthermore, the bottom plate 61 of the forming barrel also employs a similar heating structure. The bottom plate 61 also has an internal layer housing a second heating module 64 (such as a heating wire). Unlike the heating modules on the side walls, the second heating module 64 is directly electrically connected to the second electric heating port 65 at the bottom of the bottom plate 61. This integrated design further improves heating efficiency, enabling precise heating and insulation of the bottom of the barrel 6. Working in conjunction with the side wall heating modules, it forms comprehensive temperature control, ensuring that the 3D printing process is always maintained at an ideal temperature, thereby achieving optimal printing results. This dual heating structure effectively avoids problems such as warping and deformation of the printing material due to uneven temperature, greatly improving the quality and precision of the printed product.

[0048] In summary, the molding barrel structure of this utility model achieves a high degree of interchangeability and modularity of components by adopting a standardized printing platform positioning structure, a lifting platform positioning structure, and a base plate locking structure. This means that regardless of how the barrel body 6, the upper adapter block 4, or the lower adapter block 5 are replaced, the size and position of these standard components remain unchanged, thus eliminating the need to replace other accessories such as the printing platform, lifting platform, and barrel locking mechanism. This not only significantly reduces the cost of equipment maintenance and replacement but also improves the overall working efficiency and reliability of the system.

Claims

1. A molding barrel structure with adjustable printing area, characterized in that: Includes an outer cover (1) and a bottom frame (2). The upper end of the outer cover (1) is provided with an annular connecting plate (3). An annular upper adapter block (4) is detachably connected to the connecting plate (3). An annular lower adapter block (5) is detachably connected to the bottom frame (2). A barrel body (6) is provided inside the outer cover (1). The barrel (6) has several different sizes and can be detachably connected between the upper adapter block (4) and the lower adapter block (5), or can be detachably connected between the connecting plate (3) and the lower adapter block (5). Different sizes of barrel (6) correspond to different sizes of upper adapter block (4) and lower adapter block (5). Different sizes of upper adapter block (4) can be replaced and installed on the connecting plate (3), and different sizes of lower adapter block (5) can be replaced and installed on the bottom frame (2).

2. The molding barrel structure with adjustable printing area according to claim 1, characterized in that: The inner ring dimensions of the upper adapter block (4) of different sizes are different, while the outer ring dimensions are the same. The inner ring dimensions of the lower adapter block (5) of different sizes are different, while the outer ring dimensions are the same.

3. The molding barrel structure with adjustable printing area according to claim 1, characterized in that: The upper adapter block (4) or connecting plate (3) is fitted onto the barrel body (6) from top to bottom and is detachably connected together by fasteners. The connecting plate (3) and the outer cover (1), and the upper adapter block (4) and the connecting plate (3) are also detachably connected together by fasteners.

4. The molding barrel structure with adjustable printing area according to claim 1, characterized in that: The lower adapter block (5) is fitted onto the barrel body (6) from bottom to top and is detachably connected together with fasteners. The bottom frame (2) is fitted onto the lower adapter block (5) and is detachably connected together with fasteners.

5. The molding barrel structure with adjustable printing area according to claim 1, characterized in that: The connecting plate (3) is fitted onto the upper adapter block (4) from top to bottom and is detachably connected together by fasteners.

6. The molding barrel structure with adjustable printing area according to claim 1, characterized in that: The top of the outer cover (1) is provided with a printing platform positioning structure that can dock with the printing platform.

7. The molding barrel structure with adjustable printing area according to claim 1, characterized in that: The bottom frame (2) is provided with a lifting platform positioning structure that can dock with the forming barrel lifting platform.

8. The molding barrel structure with adjustable printing area according to claim 1, characterized in that: The barrel (6) is provided with a bottom plate (61) that can be raised and lowered inside it, and the bottom of the bottom plate (61) is provided with a bottom plate locking structure that can be connected to the bottom plate lifting platform.

9. The molding barrel structure with adjustable printing area according to claim 1, characterized in that: The barrel body (6) has a sandwich layer in each side wall, and a first heating module (63) is provided in the sandwich layer. The bottom frame (2) is provided with a first electric heating port (22). The first electric heating port (22) and the first heating module (63) are detachably connected by wires.

10. The molding barrel structure with adjustable printing area according to claim 8, characterized in that: The base plate (61) is also provided with a sandwich layer, in which a second heating module (64) is provided, and the bottom of the base plate (61) is provided with a second electric heating port (65) that is electrically connected to the second heating module (64).

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