Stable and smooth lifting platform

Abstract

The utility model discloses a stable and smooth lifting platform which comprises a base, an outer cover is arranged on the base, a lifting box is connected in the outer cover in a sliding mode, a lifting plate is arranged at the upper end of the lifting box, and a driving device used for driving the lifting box to ascend and descend is arranged between the lifting box and the base. A guide rail sliding block guiding structure is arranged on the outer side face of the lifting box and the corresponding inner side face of the outer cover. The utility model has the advantage of being more stable and smoother.

Description

TECHNICAL FIELD

[0001] The utility model relates to 3D printer technical field especially relates to a smooth lifting platform. BACKGROUND

[0002] In recent years, 3D printers based on selective laser sintering (SLS) technology have been widely used in various industrial and manufacturing fields. During the printing process, the equipment will perform layer slicing processing according to the pre-set digital model, and then perform printing operation layer by layer. After completing the construction of each layer, the bottom plate of the forming barrel will automatically descend to provide sufficient space for the printing of the next layer. The key to this process lies in the effectiveness and stability of the lifting movement of the bottom plate.

[0003] Currently, the lifting of the bottom plate mainly relies on traditional driving devices such as air cylinders, gear racks, and cross-linkage mechanisms. However, these traditional transmission methods have several problems in practical application. First, unstable conditions may occur during transmission, leading to a decrease in the docking accuracy between printing layers and affecting the quality of the finished product. Second, the actions of these driving devices are not always smooth, which may cause delays or stalls during the lifting process, thereby affecting the efficiency of the entire printing cycle. At the same time, the volume of these mechanisms is generally large, limiting the compactness and flexibility of the equipment. In addition, some lifting mechanisms require slots to be opened on the forming barrel to reserve space for the movement of the lifting mechanism. This design not only may damage the structural integrity of the forming barrel, but also may reduce its stability and increase the risk of powder leakage.

[0004] In addition, the original SLS-type 3D printing using traditional driving devices is usually performed at low temperatures (around 200 degrees Celsius), which is not suitable for working at high temperatures (above 300 degrees Celsius). However, the printing process of some 3D printing materials requires working in an environment with a temperature exceeding 300 degrees. However, ordinary driving devices are greatly affected by high temperatures. In a high-temperature environment, the sealing performance of the air cylinder will decrease, the viscosity of the lubricating oil will decrease, and the thermal expansion of the metal parts will increase, all of which will lead to a decrease in the precision and reliability of the driving device, thereby affecting the printing quality.

[0005] Therefore, it is necessary to further improve and perfect the existing technology to overcome these shortcomings. The utility model is made based on this situation. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims to overcome the shortcomings of the prior art and provide a more stable and smooth lifting platform.

[0007] The utility model is achieved through the following technical solutions:

[0008] In order to solve the above technical problems, the utility model provides a kind of smooth lifting platform, including base, the base is equipped with cover, the cover is slidably connected with lifting box, the upper end of the lifting box is equipped with lifting plate, the driving device for driving lifting box lifting is equipped between the lifting box and base, the outer side of the lifting box and the corresponding inner side of cover are equipped with guide rail sliding block guide structure.

[0009] In order to further solve the technical problems to be solved by the utility model, in a kind of smooth lifting platform provided by the utility model, the driving device includes driving motor arranged on base, ball screw pair arranged between base and lifting box, and gear transmission structure arranged between driving motor and ball screw pair.

[0010] In order to further solve the technical problems to be solved by the utility model, in a kind of smooth lifting platform provided by the utility model, the driving motor and lifting box are located at the same side of base.

[0011] In order to further solve the technical problems to be solved by the utility model, in a kind of smooth lifting platform provided by the utility model, the bottom of the lifting box is equipped with box bottom plate, and the screw rod nut of ball screw pair is installed at the center of box bottom plate.

[0012] In order to further solve the technical problems to be solved by the utility model, in a kind of smooth lifting platform provided by the utility model, the guide rail sliding block guide structure includes several guide rails arranged on the outer side of lifting box, and sliding block matched on corresponding guide rail, the sliding block is fixedly connected on the corresponding inner side of cover.

[0013] In order to further solve the technical problems to be solved by the utility model, in a kind of smooth lifting platform provided by the utility model, the lifting box and cover are square box or polygonal box.

[0014] In order to further solve the technical problems to be solved by the utility model, in a kind of smooth lifting platform provided by the utility model, the upper and lower ends of the outer side of the lifting box are respectively equipped with upper limit block and lower limit block, the cover is equipped with upper limit switch matched with upper limit block and lower limit switch matched with lower limit block, and the control system of driving device is electrically connected between upper limit switch and lower limit switch.

[0015] In order to further solve the technical problems to be solved by the utility model, in a kind of smooth lifting platform provided by the utility model, the lifting plate is connected with forming barrel bottom plate in 3D printer.

[0016] Compared with prior art, the utility model has the following advantages:

[0017] The utility model discloses a cover is added on the base, the lifting box is added on the lower end of the lifting plate, and the guide rail slider guiding structure is arranged between the cover and the lifting box, and the stability of the lifting process is increased. By introducing the cover to provide necessary protection for the lifting system, and improve the stability of the whole. In addition, the driving device of the utility model adopts the high-precision ball screw transmission structure, and the transmission mode can not only provide more stable power transmission, but also significantly improve the accuracy and response speed of lifting.

[0018] The traditional partial lifting mechanism needs to be slotted on the forming barrel to reserve the activity space of the lifting mechanism, which not only can destroy the structural integrity of the forming barrel, but also can reduce the stability and increase the risk of powder leakage. The lifting platform of the application does not need to be slotted, which can ensure the structural integrity of the forming barrel and avoid the risk of powder leakage. In addition, the lifting platform of the application can also reduce the influence of high temperature, and can stably operate even in a long time high temperature working state, to ensure the printing quality. BRIEF DESCRIPTION OF DRAWINGS

[0019] The specific embodiments of the utility model will be further described in detail below with reference to the drawings, in which:

[0020] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0021] Figure 2 It is the explosion drawing of the utility model;

[0022] Figure 3 It is the three-dimensional schematic diagram of the lifting box;

[0023] Figure 4 It is the exploded schematic diagram of the gear transmission structure;

[0024] Figure 5 It is Figure 1 The local enlarged view of A in the figure. DETAILED DESCRIPTION

[0025] In order to make the technical personnel in the art better understand the technical scheme of the utility model, the utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0026] As Figures 1 to 5 The utility model relates to a stable and smooth lifting platform mainly used in the construction process of 3D printer to improve the printing precision and efficiency. The lifting platform includes base 1, and the base 1 provides good support and stability to ensure that the vibration and error in the printing process are minimized. The cover 2 is fixed above the base 1, and the cover 2 protects the internal components and provides a guide channel, so that the lifting box 3 can slide smoothly.

[0027] The lifting box 3 is slidingly connected in the outer cover 2, and the upper end of the lifting box 3 is provided with a lifting plate 4. In this embodiment, the lifting plate 4 is connected with the forming barrel bottom plate in the 3D printer, which is responsible for carrying the object being built. The lifting process of the lifting box 3 is powered by a driving device 5 provided on the base 1, which ensures the stability and durability thereof.

[0028] The structure of the driving device 5 includes a driving motor 51 or a speed reducer motor, which is arranged on the base 1 to facilitate effective power transmission. In addition, the driving device further includes a ball screw pair 52 arranged between the base 1 and the lifting box 3, and the ball screw design can greatly improve the accuracy and response speed of the lifting.

[0029] Between the driving motor 51 and the ball screw pair 52, a gear transmission structure 53 is arranged. The gear transmission design can effectively convert the rotary motion of the motor into the translational motion of the lifting box 3, and the compact layout helps to reduce the overall volume of the equipment, making the design of the printer more compact. Such a design not only improves the use efficiency of the equipment, but also facilitates maintenance and operation.

[0030] The outer side of the lifting box 3 and the corresponding inner side of the outer cover 2 are provided with a guide rail and sliding block guide structure 6. Through this structure, the lifting box 3 can stably slide in the outer cover 2. The design of the guide rail and sliding block guide structure 6 includes a plurality of guide rails 61 uniformly arranged on the outer side of the lifting box 3, and sliding blocks 62 matched with the guide rails 61, the sliding blocks 62 being fixedly connected to the corresponding inner side of the outer cover 2. This guide rail and sliding block structure not only realizes the stable movement of the lifting box 3, but also effectively reduces wear and tear, prolonging the service life of the equipment.

[0031] To ensure the safety of the lifting process, the bottom of the lifting box 3 is provided with a box bottom plate 31, and the screw nut of the ball screw pair 52 is accurately installed at the center of the box bottom plate 31, ensuring the symmetry and balance of the lifting operation.

[0032] In addition, the upper and lower ends of the outer side of the lifting box 3 are respectively provided with an upper limit block 32 and a lower limit block 33. The outer cover 2 is correspondingly provided with an upper limit switch 21 and a lower limit switch 22, and the upper limit switch 21 and the lower limit switch 22 are electrically connected with the control system (circuit board) of the driving motor 51. Such a design can automatically cut off the power supply of the driving motor 51 when the lifting box 3 reaches the limit position, avoiding possible mechanical jamming or damage during the lifting process, thereby improving the safety and reliability of the equipment.

[0033] Traditional lifting mechanisms usually have driving devices such as cylinders directly arranged below the lifting plate 4 to realize the lifting function. However, such design often leads to insufficient smoothness and stability during lifting, which may cause problems such as vibration, deviation or jam, thereby affecting the overall performance of the equipment and the printing quality. The direct driving method is easily affected by external factors during operation, resulting in decreased precision and affecting the quality and accuracy of the printing result.

[0034] The utility model discloses an innovative structure design, through the outer cover 2 of additional on the base 1, the lifting box 3 of additional on the lower end of lifting plate 4 and be equipped with between the guide rail slider guide structure 6 of outer cover 2 and lifting box 3, increase the stability of lifting process. By introducing the outer cover 2 to provide necessary protection for the lifting system, and improve the stability of the whole.

[0035] The outer cover 2 not only plays the role of external environmental protection, but also provides a track for the lifting box 3, allowing it to slide smoothly during lifting, avoiding the friction and instability caused by direct contact in traditional designs.

[0036] The lifting box 3 is designed to carry the lifting plate 4 and ensure its good balance during the entire lifting process. The lifting box 3 and the outer cover 2 cooperate to ensure that each lifting of the lifting plate 4 is smooth, avoiding the risk of tilting or vibration.

[0037] In addition, the driving device 5 in the utility model adopts a high-precision ball screw transmission structure. This transmission method not only provides more stable power transmission, but also significantly improves the accuracy and response speed of lifting. Compared with traditional cylinder driving, the ball screw design reduces friction loss, improves energy utilization efficiency, and can maintain stable output performance for a long time. This design makes the lifting process smoother, thereby improving the overall reliability and service life of the equipment. The lifting platform of the utility model is specially designed to effectively reduce the adverse effects of high temperature environment. Its key components are made of high-temperature-resistant materials, and the thermal expansion factor is fully considered in the structure design, ensuring that the lifting mechanism can still maintain high precision and high reliability in high-temperature environments, thereby meeting the requirements of high-temperature stability in the SLS 3D printing process. Even in a long time high-temperature working state, it can run stably and ensure the printing quality.

[0038] In summary, the utility model overcomes the shortcomings of traditional lifting mechanisms through innovative design of the lifting mechanism, ensuring smooth and stable lifting of the lifting plate 4, thereby effectively improving the working efficiency and printing quality of the 3D printer.

Claims

1. A smooth and stable lifting platform, characterized in that: Includes a base (1), on which an outer cover (2) is provided, and a lifting box (3) is slidably connected inside the outer cover (2). A lifting plate (4) is provided at the upper end of the lifting box (3). A driving device (5) for driving the lifting box (3) to rise and fall is provided between the lifting box (3) and the base (1). A guide rail slider guide structure (6) is provided on the outer side of the lifting box (3) and the corresponding inner side of the outer cover (2).

2. The smooth and stable lifting platform according to claim 1, characterized in that: The drive device (5) includes a drive motor (51) mounted on the base (1), a ball screw pair (52) mounted between the base (1) and the lifting box (3), and a gear transmission structure (53) mounted between the drive motor (51) and the ball screw pair (52).

3. The smooth and stable lifting platform according to claim 2, characterized in that: The drive motor (51) and the lifting box (3) are located on the same side of the base (1).

4. The smooth and stable lifting platform according to claim 2, characterized in that: The bottom of the lifting box (3) is provided with a box bottom plate (31), and the screw nut of the ball screw pair (52) is installed at the center of the box bottom plate (31).

5. The smooth and stable lifting platform according to claim 1, characterized in that: The guide rail slider guide structure (6) includes several guide rails (61) provided on the outer side of the lifting box (3) and sliders (62) that cooperate on the corresponding guide rails (61). The sliders (62) are fixedly connected to the corresponding inner side of the outer cover (2).

6. The smooth and stable lifting platform according to claim 1, characterized in that: Both the lifting box (3) and the outer cover (2) are square or polygonal boxes.

7. The smooth and stable lifting platform according to claim 1, characterized in that: The upper and lower ends of the outer side of the lifting box (3) are respectively provided with an upper limit block (32) and a lower limit block (33). The outer cover (2) is provided with an upper limit switch (21) that can cooperate with the upper limit block (32) and a lower limit switch (22) that can cooperate with the lower limit block (33). The upper limit switch (21) and the lower limit switch (22) are both electrically connected to the control system of the drive device (5).

8. The smooth and stable lifting platform according to claim 1, characterized in that: The lifting plate (4) is connected to the bottom plate of the molding barrel in the 3D printer.

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