A 3D printing device belt tensioning device

Abstract

The utility model relates to 3D printing equipment component technical field discloses a 3D printing equipment belt tensioner, include: mounting seat, the outer wall of mounting seat is equipped with the installation through -hole, tension adjusting mechanism, tension adjusting mechanism sets up on mounting seat, tension adjusting mechanism is used for the tension adjustment of belt, distance display mechanism, distance display mechanism sets up on mounting seat, distance display mechanism is used for showing the distance of adjustment, the utility model discloses the whole design of distance display mechanism, the process of implementing tension adjustment, transmission plate will move in step, and the distance of transmission plate movement is same with the distance of tension adjustment, when through the design of rebound contact type displacement range finding sensor, the distance of transmission plate displacement can be measured, then shows from the display screen, provides user real -time reading, by this design, it is convenient for user to accurately control the distance of tension, guarantees the expected effect of tension adjustment.

Description

Technical Field

[0001] This utility model relates to the technical field of 3D printing equipment components, specifically to a belt tensioning device for 3D printing equipment. Background Technology

[0002] 3D printing equipment is a technological device that transforms a three-dimensional digital model into a physical object by depositing material layer by layer. Its core components include a nozzle, heating module, stepper motor, and control system, and its working principle is completely opposite to that of traditional subtractive manufacturing. This equipment is widely used in aerospace, medical, architectural model, and consumer product manufacturing fields, enabling the rapid prototyping of complex structures.

[0003] The core purpose of setting up a belt tensioning device in 3D printing equipment is to ensure the stability of the transmission system and printing accuracy. Belt drives rely on friction to transmit power, but after long-term use, the belt will loosen due to stretching or wear, leading to print head misalignment or motor overload. Appropriate tension can prevent belt slippage and reduce vibration, while avoiding the risk of bearing damage or belt breakage caused by excessive tension.

[0004] Traditional belt tensioning devices are all tensioned by manually adjusting the position of the pulleys. They do not have the function of displaying the adjustment distance. Users rely on their own experience to implement the tensioning, which makes it difficult to accurately control the distance and may result in a worse tensioning effect. Utility Model Content

[0005] The purpose of this invention is to provide a belt tensioning device for 3D printing equipment, which solves the problem that it is difficult to accurately control the tensioning adjustment distance when using existing belt tensioning devices.

[0006] This utility model provides the following technical solution: a belt tensioning device for 3D printing equipment, comprising:

[0007] The mounting base has a mounting through hole on its outer wall;

[0008] The tension adjustment mechanism is mounted on the mounting base and is used to adjust the tension of the belt.

[0009] A distance display mechanism is mounted on a mounting base and is used to display the adjusted distance.

[0010] The distance display mechanism includes a fixed frame, which is fixedly installed on the side of the mounting base. A support frame is movably inserted into the inner cavity of the fixed frame. A positioning bolt is threadedly connected to the outer wall of the fixed frame. The threaded end of the positioning bolt is movably connected to the outer wall of the support frame. A spring-loaded contact displacement distance sensor is fixedly installed on the top of the support frame. A display screen is provided on the spring-loaded contact displacement distance sensor.

[0011] As a preferred embodiment of the above technical solution, the tension adjustment mechanism includes a threaded rod, which is threadedly connected to the inner wall of the mounting base. A U-shaped frame is rotatably connected to the threaded end of the threaded rod, and a limiting slide rod is fixedly installed on the outer wall of the U-shaped frame. The limiting slide rod is slidably connected to the inner wall of the mounting base.

[0012] By manually rotating the threaded rod, the U-shaped frame moves axially along the threaded rod, thus achieving the function of tensioning the belt.

[0013] As a preferred embodiment of the above technical solution, bearings are fixedly installed at the top and bottom of the inner wall of the U-shaped frame, and pulleys are fixedly installed on the inner wall of the bearings.

[0014] The above technical solution connects the belt to the outer wall of the pulley, allowing for subsequent tension adjustment of the belt.

[0015] As a preferred embodiment of the above technical solution, the tension adjustment mechanism further includes a scale, which is fixedly installed on the outer wall of the mounting base, and an indicator arrow is fixedly installed on the outer wall of the U-shaped frame.

[0016] With the above technical solution, during the belt tensioning adjustment process, the position of the scale indicated by the indicator arrow will change, and the user can also read the distance from there for easy use.

[0017] As a preferred embodiment of the above technical solution, the distance display mechanism further includes a sleeve, which is movably sleeved on the outer wall of the limiting slide rod. A connecting bolt is threadedly connected to the top of the sleeve, and the threaded end of the connecting bolt movably abuts against the outer wall of the limiting slide rod.

[0018] Through the above technical solution, the sleeve can be disassembled when not in use due to the connection design between the sleeve and the slide rod.

[0019] As a preferred embodiment of the above technical solution, a connecting arm is fixedly installed on the outer wall of the sleeve, and a transmission plate is fixedly installed on the end of the connecting arm away from the sleeve.

[0020] With the above technical solution, during the movement of the limiting slide bar, the transmission plate will be moved through the sleeve and connecting arm, so that the distance the transmission plate moves is the same as the tension adjustment distance, which facilitates the measurement of distance.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] This utility model, through the overall design of the distance display mechanism, allows the transmission plate to move synchronously during the tension adjustment process. The distance the transmission plate moves is the same as the tension adjustment distance. At this time, the design of the spring-loaded contact displacement distance sensor can measure the distance of the transmission plate displacement and then display it on the screen for users to read in real time. This design makes it easy for users to accurately control the tension distance and ensure the expected effect of tension adjustment. Attached Figure Description

[0023] Figure 1 This is a perspective view of the present utility model;

[0024] Figure 2 This is a schematic diagram of the tension adjustment mechanism of this utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the spring-loaded contact displacement ranging sensor of this utility model;

[0026] Figure 4 This is a schematic diagram of the transmission plate of this utility model.

[0027] In the diagram: 1. Mounting base; 11. Mounting through hole; 2. Tension adjustment mechanism; 21. Threaded rod; 22. Limiting slide bar; 23. U-shaped frame; 24. Bearing; 25. Pulley; 26. Indicating arrow; 27. Scale; 3. Distance display mechanism; 31. Fixing frame; 32. Positioning bolt; 33. Support frame; 34. Spring-loaded contact displacement distance sensor; 35. Display screen; 36. Sleeve; 361. Connecting bolt; 362. Connecting arm; 363. Transmission plate. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0029] like Figures 1-4 As shown, this utility model provides a technical solution: a belt tensioning device for 3D printing equipment, comprising:

[0030] Mounting base 1, with a mounting through hole 11 on its outer wall;

[0031] Tension adjustment mechanism 2 is mounted on mounting base 1 and is used to adjust the tension of the belt.

[0032] Distance display mechanism 3 is mounted on mounting base 1 and is used to display the adjusted distance;

[0033] The distance display mechanism 3 includes a fixed frame 31, which is fixedly installed on the side of the mounting base 1. A support frame 33 is movably inserted into the inner cavity of the fixed frame 31. A positioning bolt 32 is threadedly connected to the outer wall of the fixed frame 31, and the threaded end of the positioning bolt 32 is movably connected to the outer wall of the support frame 33. A spring-loaded contact displacement distance sensor 34 is fixedly installed on the top of the support frame 33. A display screen 35 is provided on the spring-loaded contact displacement distance sensor 34. During the tension adjustment process using the tension adjustment mechanism 2, the transmission plate 363 moves synchronously. The distance that the transmission plate 363 moves is the same as the tension adjustment distance. At this time, through the design of the spring-loaded contact displacement distance sensor 34, the displacement distance of the transmission plate 363 can be measured and then displayed on the display screen 35 for the user to read in real time. This facilitates the user to accurately control the tension distance and ensure the expected effect of the tension adjustment. It is worth noting that the spring-loaded contact displacement distance sensor 34 and the display screen 34 in this solution... 5 refers to equipment that can be purchased commercially by those skilled in the art. No structural modifications have been made to this document. Therefore, those skilled in the art are familiar with its working principle based on their professional knowledge and can apply it proficiently. Thus, this document will not elaborate further. Furthermore, this solution aims to protect the physical structure, not the circuitry or software control. The mention of the processing circuit in this document is merely a supplementary explanation of the feasibility and authenticity of this utility model. This utility model does not require protection of the algorithm and circuitry technology. It is worth emphasizing that although this solution does not elaborate on the electronic control program, those skilled in the art can be familiar with and apply it based on their professional knowledge. The spring-loaded contact displacement ranging sensor 34 can be selectively installed. When some users do not need it, it can be disassembled. The positioning bolt 32 is rotated off, and then the support frame 33 is pulled out from inside the fixed frame 31, thus completing the disassembly of the spring-loaded contact displacement ranging sensor 34.

[0034] As one implementation method in this embodiment, such as Figure 2 As shown, the tension adjustment mechanism 2 includes a threaded rod 21, which is threadedly connected to the inner wall of the mounting base 1. A U-shaped frame 23 is rotatably connected to the threaded end of the threaded rod 21. A limiting slide rod 22 is fixedly installed on the outer wall of the U-shaped frame 23. The limiting slide rod 22 is slidably connected to the inner wall of the mounting base 1. When the threaded rod 21 is rotated manually, the U-shaped frame 23 is moved and limited by the limiting slide rod 22, causing the U-shaped frame 23 to move axially in the threaded rod 21, thus achieving the function of tensioning the belt.

[0035] As one implementation method in this embodiment, such as Figure 2As shown, bearings 24 are fixedly installed at the top and bottom of the inner wall of the U-shaped frame 23. A pulley 25 is fixedly installed on the inner wall of the bearing 24. The pulley 25 is rotatably connected to the inner side of the U-shaped frame 23 through the bearing 24. In use, the belt is connected to the outer wall of the pulley 25, so that the belt can be tensioned and adjusted in the future.

[0036] As one implementation method in this embodiment, such as Figure 2 As shown, the tension adjustment mechanism 2 also includes a scale 27, which is fixedly installed on the outer wall of the mounting base 1. An indicator arrow 26 is fixedly installed on the outer wall of the U-shaped frame 23. During the process of adjusting the tension of the belt by moving the U-shaped frame 23, the position of the scale 27 indicated by the indicator arrow 26 will change, and the user can also read the distance from there for easy use.

[0037] As one implementation method in this embodiment, such as Figure 4 As shown, the distance display mechanism 3 also includes a sleeve 36, which is movably sleeved on the outer wall of the limiting slide bar 22. The top of the sleeve 36 is threaded with a connecting bolt 361, and the threaded end of the connecting bolt 361 movably abuts against the outer wall of the limiting slide bar 22. The spring-loaded contact displacement distance sensor 34 can also be disassembled without disassembly by loosening the connecting bolt 361 and then removing the sleeve 36 from the outer wall of the limiting slide bar 22.

[0038] As one implementation method in this embodiment, such as Figure 4 As shown, a connecting arm 362 is fixedly installed on the outer wall of the sleeve 36. A transmission plate 363 is fixedly installed at the end of the connecting arm 362 away from the sleeve 36. During the movement of the limiting slide rod 22, the transmission plate 363 will be moved through the sleeve 36 and the connecting arm 362, so that the distance moved by the transmission plate 363 is the same as the tension adjustment distance, which facilitates the measurement of distance.

[0039] Working principle: In use, the mounting base 1 is installed on the 3D printing equipment through the mounting through hole 11 using bolts. Then, the belt is connected to the outer wall of the pulley 25. If tension adjustment is required, the threaded rod 21 is rotated manually. At this time, the U-shaped frame 23 is moved and limited by the limiting slide rod 22, causing the U-shaped frame 23 to move axially in the threaded rod 21, causing the pulley 25 to move synchronously, thus achieving the function of tensioning the belt. The transmission plate 363 will also move synchronously. The distance that the transmission plate 363 moves is the same as the tension adjustment distance. At this time, through the design of the spring-loaded contact displacement distance sensor 34, the distance of displacement of the transmission plate 363 can be measured and then displayed on the display screen 35 for the user to read in real time, so that the user can accurately control the tension distance.

[0040] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A belt tensioning device for 3D printing equipment, characterized in that, include: Mounting base (1), wherein an mounting through hole (11) is provided on the outer wall of the mounting base (1); Tension adjustment mechanism (2), which is mounted on mounting base (1), is used to adjust the tension of the belt; Distance display mechanism (3) is mounted on mounting base (1) and is used to display the adjusted distance; The distance display mechanism (3) includes a fixed frame (31), which is fixedly installed on the side of the mounting base (1). A support frame (33) is movably inserted into the inner cavity of the fixed frame (31). A positioning bolt (32) is threadedly connected to the outer wall of the fixed frame (31). The threaded end of the positioning bolt (32) is movably connected to the outer wall of the support frame (33). A spring-loaded contact displacement distance sensor (34) is fixedly installed on the top of the support frame (33). A display screen (35) is provided on the spring-loaded contact displacement distance sensor (34).

2. The belt tensioning device for a 3D printing equipment according to claim 1, characterized in that: The tension adjustment mechanism (2) includes a threaded rod (21), which is threadedly connected to the inner wall of the mounting base (1). The threaded end of the threaded rod (21) is rotatably connected to a U-shaped frame (23). A limiting slide rod (22) is fixedly installed on the outer wall of the U-shaped frame (23), and the limiting slide rod (22) is slidably connected to the inner wall of the mounting base (1).

3. The belt tensioning device for a 3D printing equipment according to claim 2, characterized in that: Bearings (24) are fixedly installed at the top and bottom of the inner wall of the U-shaped frame (23), and pulleys (25) are fixedly installed on the inner wall of the bearings (24).

4. The belt tensioning device for a 3D printing equipment according to claim 3, characterized in that: The tension adjustment mechanism (2) also includes a scale (27), which is fixedly installed on the outer wall of the mounting base (1), and an indicator arrow (26) is fixedly installed on the outer wall of the U-shaped frame (23).

5. A belt tensioning device for a 3D printing equipment according to claim 2, characterized in that: The distance display mechanism (3) further includes a sleeve (36), which is movably sleeved on the outer wall of the limiting slide rod (22). The top of the sleeve (36) is threaded with a connecting bolt (361), and the threaded end of the connecting bolt (361) movably abuts against the outer wall of the limiting slide rod (22).

6. A belt tensioning device for a 3D printing equipment according to claim 5, characterized in that: A connecting arm (362) is fixedly installed on the outer wall of the sleeve (36), and a transmission plate (363) is fixedly installed on the end of the connecting arm (362) away from the sleeve (36).

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