Molding barrel bottom plate locking mechanism

Abstract

The utility model discloses a forming barrel bottom plate locking mechanism which comprises a forming barrel bottom plate and a lifting plate, the bottom face of the forming barrel bottom plate is provided with a first connecting plate extending downwards, the top face of the lifting plate is provided with a second connecting plate extending upwards, the second connecting plate is rotationally connected with an overturning plate capable of overturning up and down, and the first connecting plate and the second connecting plate are connected through a connecting rod. A connecting structure used for connecting the overturning plate and the first connecting plate after the overturning plate is overturned and a locking structure used for locking and unlocking the overturning plate and the first connecting plate are arranged between the overturning plate and the first connecting plate. The device has the advantages of being more stable and reliable and easy to operate.

Description

Technical Field

[0001] This utility model relates to the field of 3D printer technology, and in particular to a locking mechanism for the bottom plate of a molded barrel. Background Technology

[0002] Selective laser sintering (SLS) 3D printing technology is playing an increasingly important role in the field of additive manufacturing, and its applications are becoming increasingly widespread. However, the core component of SLS 3D printers—the forming barrel—still faces some technical challenges in its connection with the lifting platform.

[0003] Currently, most SLS-type 3D printers on the market typically use either a fixed or removable barrel base plate, depending on the heating principle. Removable base plates achieve heating through convection. However, the use of removable barrel locking mechanisms has limitations. Specifically, these manual barrel locking mechanisms are often complex in design, containing multiple parts, increasing the difficulty of assembly and maintenance.

[0004] Traditional SLS-based 3D printing, which uses a detachable molding barrel, typically operates at low temperatures (around 200 degrees Celsius) and is unsuitable for high temperatures (above 300 degrees Celsius). However, some current SLS-based 3D printing materials require temperatures exceeding 300 degrees Celsius. This high-temperature environment significantly impacts the material properties of the locking mechanism. For example, high temperatures cause thermal expansion of the locking components, leading to dimensional changes and deformation. This deformation directly affects the stability of conventional locking mechanisms, resulting in reduced locking force, or even loosening or failure, thus affecting printing accuracy and quality. Furthermore, material deformation at high temperatures makes disassembling the molding barrel extremely difficult, or even impossible, increasing operational complexity and time costs, and reducing production efficiency.

[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 existing technology and provide a more stable, reliable, and easy-to-operate locking mechanism for the bottom plate of a molded barrel.

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

[0008] To solve the above-mentioned technical problems, this utility model provides a locking mechanism for the bottom plate of a molding barrel, including a bottom plate of the molding barrel and a lifting plate. The bottom surface of the bottom plate of the molding barrel is provided with a first connecting plate extending downward, and the top surface of the lifting plate is provided with a second connecting plate extending upward. A flipping plate that can be flipped up and down is rotatably connected to the second connecting plate. A connecting structure for connecting the two after the flipping plate is flipped up is provided between the flipping plate and the first connecting plate, and a locking structure for locking and unlocking the flipping plate and the first connecting plate.

[0009] In order to further solve the technical problem to be solved by this utility model, the present utility model provides a locking mechanism for the bottom plate of a molded barrel, wherein the connecting structure includes a mortise hole provided on the first connecting plate and a tenon provided on the side of the flip plate and capable of being inserted into the corresponding mortise hole as the flip plate flips.

[0010] In order to further solve the technical problems to be solved by this utility model, the present utility model provides a locking mechanism for the bottom plate of a molded barrel, wherein the tenon is located on the inner side of the flip plate, and a first handle is provided on the outer side of the flip plate.

[0011] To further solve the technical problem to be solved by this utility model, this utility model provides a locking mechanism for a molded barrel bottom plate. The locking structure includes a locking tongue that is slidably connected to a first connecting plate and can extend into and retract from a mortise hole. The tenon is provided with a locking groove for the locking tongue to be inserted therein. An elastic reset member is provided between the locking tongue and the first connecting plate to press the locking tongue towards the mortise hole.

[0012] In order to further solve the technical problem to be solved by this utility model, the present utility model provides a locking mechanism for the bottom plate of a molded barrel, wherein a pull rod is connected to the locking tongue, the free end of the pull rod extends out of the first connecting plate, and the free end of the pull rod is provided with a second handle.

[0013] In order to further solve the technical problem to be solved by this utility model, the present utility model provides a molding barrel bottom plate locking mechanism, wherein the first connecting plate is provided in two and symmetrically distributed on the bottom surface of the molding barrel bottom plate, and correspondingly, the second connecting plate is also provided in two and symmetrically distributed on the top surface of the lifting plate.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] This utility model designs a locking mechanism for the bottom plate of a molded barrel. It employs a connecting structure consisting of a flip plate, tenons, and mortises, simplifying the complexity of traditional manual barrel locking mechanisms. The structure is simple, the positioning is precise, and assembly and disassembly are more convenient. The flip plate also serves as a power transmission mechanism, transferring the lifting force to the bottom plate of the molded barrel. The use of a double-locking structure with a locking tongue ensures the flip plate and the first connecting plate are securely locked together, without deformation or loosening under high temperatures, making it safer and more reliable. By adding an elastic reset component, a first handle, and a second handle, users can easily and quickly lock and unlock, making operation convenient and significantly reducing the labor intensity of operation. Attached Figure Description

[0016] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is a partial structural breakdown diagram;

[0019] Figure 3 This is a schematic diagram of a portion of the structure in three dimensions. Detailed Implementation

[0020] 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.

[0021] like Figures 1 to 3 As shown, this molding barrel bottom plate locking mechanism mainly consists of molding barrel bottom plate 1 and lifting plate 2. Its design aims to improve the convenience and stability of locking and unlocking operations of the molding barrel bottom plate in SLS 3D printers.

[0022] In this mechanism, the bottom surface of the forming barrel base plate 1 is equipped with a downwardly extending first connecting plate 3, while the top surface of the lifting plate 2 is equipped with an upwardly extending second connecting plate 4. To achieve effective connection between the forming barrel base plate and the lifting plate, the second connecting plate 4 is connected to a flip-up plate 5 that can rotate up and down. The flip-up plate 5 makes unlocking the forming barrel base plate simpler and less strenuous. Two structures are provided between the flip-up plate 5 and the first connecting plate 3: a connecting structure for connecting the flip-up plate 5 to the first connecting plate 3 after it is flipped up; and a locking structure for locking the flip-up plate 5 and the first connecting plate 3 together. Both structures are simple in design, easier and faster to install and produce, and can reduce production costs.

[0023] Furthermore, the connection structure is a mortise and tenon structure, including mortise holes 31 on the first connecting plate 3 and tenons 51 on the side of the flip plate 5. The tenons 51 can be inserted into the corresponding mortise holes 31 as the flip plate 5 flips, achieving a stable connection. The advantage of this structure is that it simplifies the connection process, reduces operating steps, and improves the user experience. In addition, this structure provides precise positioning and avoids positioning difficulties caused by pin misalignment.

[0024] Preferably, the tenon 51 and the mortise hole 31 are fitted with a clearance to avoid the problem of them being unable to be disassembled under high temperature.

[0025] Preferably, the tenon 51 and the mortise hole 31 are elongated and have chamfered or rounded edges to facilitate the alignment and insertion of the tenon 51 and the mortise hole 31.

[0026] The tenon 51 is located on the inner side of the flip plate 5, while the outer side of the flip plate 5 is provided with a first handle 52, which facilitates manual flipping by the operator.

[0027] Of course, in addition to its connecting function, the flip plate 5 also plays a role in power transmission, which can transmit the lifting force from the lifting plate 2 to the bottom plate 1 of the forming barrel, that is, to push the bottom plate 1 of the forming barrel to rise and fall.

[0028] Regarding the locking structure, the latch 6 is slidably connected to the first connecting plate 3, allowing it to flexibly extend into or retract from the mortise hole 31. The tenon 51 has a locking groove 511 for the latch 6 to be inserted, ensuring a secure lock between the flip plate 5 and the first connecting plate 3. Furthermore, an elastic reset member 61 (preferably a spring) is provided between the latch 6 and the first connecting plate 3. This component continuously applies upward pressure towards the mortise hole 31 to ensure that the latch 6 does not accidentally loosen in the locked state.

[0029] In this invention, the locking tongue 6 is not a simple single locking structure, but cleverly employs a double locking mechanism. This double locking structure can significantly improve the stability and reliability of the connection. Specifically, the locking tongue 6 effectively locks the flip plate and the first connecting plate together firmly, maintaining a stable connection even in the high-temperature working environment of SLS 3D printing.

[0030] Unlike traditional locking mechanisms that are susceptible to deformation, loosening, or even failure due to high temperatures, the dual-locking structure in this invention effectively overcomes this problem. The locking tongue 6 can withstand thermal stress under high-temperature environments and is not easily deformed, thus ensuring the long-term stability of the locking force. Even under prolonged high-temperature operation, the locking tongue 6 maintains its locking performance, ensuring a firm and reliable connection between the flip plate and the first connecting plate, preventing loosening or failure. This design not only improves the safety of equipment operation but also enhances printing accuracy and quality, ultimately extending the equipment's service life.

[0031] The end of the latch 6 has a bevel facing the flip plate 5 for guidance. When the flip plate 5 is manually flipped upwards, the tenon 51 aligns and inserts into the mortise hole 31. During this insertion process, the tenon 51 presses against the bevel at the end of the latch 6, causing the latch 6 to retract. After the tenon 51 is fully inserted into the mortise hole 31, the latch 6 is reset by the elastic reset member 61, that is, it extends into the mortise hole 31 and inserts into the locking groove 511 on the tenon 51, thus completing the locking.

[0032] To facilitate operation of the latch 6, a pull rod 62 is connected to the latch 6 of this invention. The free end of the pull rod 62 extends out of the first connecting plate 3, and a second handle 63 is provided at its free end. By pulling the second handle 63, the operator can easily control the extension and retraction of the latch 6, thereby achieving quick unlocking. This design greatly improves the ease of operation.

[0033] To unlock, first pull down the second handle 63 to disengage the locking tongue 6 from the locking groove 511 and the mortise hole 31; then grasp the first handle 52 and flip the flip plate 5 downwards to disengage the tenon 51 from the mortise hole 31, thus separating the molded barrel bottom plate 1 from the lifting plate 2.

[0034] To ensure the stability and reliability of the mechanism, two first connecting plates 3 are symmetrically distributed on the bottom surface of the forming barrel bottom plate 1, and correspondingly, two second connecting plates 4 are also symmetrically distributed on the top surface of the lifting plate 2. This symmetrical structural design improves the overall stability.

[0035] Through the above design, this molding barrel bottom plate locking mechanism significantly improves the efficiency and convenience of operation, solves the problems of complexity and high labor intensity in the existing technology, and provides a more user-friendly solution for the use of SLS 3D printers.

Claims

1. A locking mechanism for the bottom plate of a molded barrel, characterized in that: The device includes a bottom plate (1) for forming a barrel and a lifting plate (2). The bottom surface of the bottom plate (1) is provided with a first connecting plate (3) extending downward, and the top surface of the lifting plate (2) is provided with a second connecting plate (4) extending upward. A flip plate (5) that can be flipped up and down is rotatably connected to the second connecting plate (4). A connecting structure for connecting the flip plate (5) and the first connecting plate (3) is provided between the flip plate (5) and the first connecting plate (3), and a locking structure for locking and unlocking the flip plate (5) and the first connecting plate (3).

2. The locking mechanism for the bottom plate of a molded barrel according to claim 1, characterized in that: The connection structure includes a mortise hole (31) on the first connecting plate (3) and a tenon (51) on the side of the flip plate (5) that can be inserted into the corresponding mortise hole (31) as the flip plate (5) flips.

3. The locking mechanism for the bottom plate of a molded barrel according to claim 2, characterized in that: The tenon (51) is located on the inner side of the flip plate (5), and the outer side of the flip plate (5) is provided with a first handle (52).

4. The locking mechanism for the bottom plate of a molded barrel according to claim 2, characterized in that: The locking structure includes a latch (6) that is slidably connected to the first connecting plate (3) and can extend into and exit the mortise hole (31). The tenon (51) is provided with a locking groove (511) for the latch (6) to be inserted therein. An elastic reset member (61) is provided between the latch (6) and the first connecting plate (3) to press the latch (6) in the direction of the mortise hole (31).

5. The locking mechanism for the bottom plate of a molded barrel according to claim 4, characterized in that: A lever (62) is connected to the latch (6), the free end of the lever (62) extends out of the first connecting plate (3), and the free end of the lever (62) is provided with a second handle (63).

6. The locking mechanism for the bottom plate of a molded barrel according to claim 1, characterized in that: The first connecting plate (3) is provided in two symmetrically distributed on the bottom surface of the forming barrel bottom plate (1), and correspondingly, the second connecting plate (4) is also provided in two symmetrically distributed on the top surface of the lifting plate (2).

Images