A band saw with a tension display device

Abstract

This utility model discloses a band saw with a tension display device, including a sliding potentiometer. One end of the sliding potentiometer is electrically connected to a digital display screen. A threaded plate is slidably connected to the bottom of the sliding potentiometer, and a potentiometer bracket is fixedly connected to the upper end of the threaded plate. A slider is slidably connected to the top of the sliding potentiometer. An upper wheel shaft is fixedly installed at the center end of one side of the slider, and a hanging plate is fixedly connected to one side of the slider. A groove is opened on the surface of the hanging plate. The band saw with the tension display device of this utility model can control the tension of the saw blade through the rebound force of the spring, thus better controlling the tension of the saw blade. At the same time, the potentiometer push rod can move with the hanging plate through the groove, and the value on the digital display screen changes accordingly. The tension value is displayed in real time by adjusting the position of the upper wheel, making the adjustment more accurate and convenient for customer operation.

Description

Technical Field

[0001] This utility model relates to the field of band saw technology, specifically a band saw with a tension display device. Background Technology

[0002] In woodworking band saws, the tensioning mechanism is an important component. It uses the tension of the elastic element to move the upper wheel away from the lower wheel, thereby tensioning the saw blade connected to the upper and lower wheels against the wheels. The rotation of the wheels drives the saw blade to move, thus achieving the purpose of cutting wood.

[0003] Currently, there are many types of saw blade tensioning mechanisms, including quick-tensioning and ordinary tensioning types. Quick-tensioning mechanisms are further divided into circumferential cam type and end-face cam type. Regardless of the type of tensioning mechanism used, the saw blade must be tensioned to the appropriate position during machine use. If the tension is too low, the saw blade may fall off during operation, causing a safety hazard; if the tension is too high, the saw blade will be used under excessive tension for a long time, which will shorten its lifespan and may also lead to breakage.

[0004] Prioritizing the safety and protective measures of woodworking machinery is crucial to preventing accidents and ensuring personal safety during operation. Therefore, maximizing user safety is paramount when operating band saws.

[0005] Current band saws require operators to press and feel the deflection of the saw blade with their fingers for adjustment. This method is difficult for beginners. Alternatively, a pointer can be installed on the tensioning mechanism, and the machine body has tensioning positions for different widths of saw blades. Adjusting the tensioning mechanism to make the pointer point to the corresponding saw blade width position introduces a certain tension error. Furthermore, as the machine is used for a longer period of time, the saw blade length will increase, and the position indicated by the pointer will become inaccurate. If the saw blade is not tensioned at the optimal tension position, it will cause great inconvenience and safety hazards to the operator. Therefore, we propose a band saw with a tension display device. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] This utility model discloses a band saw with a tension display device, including a sliding potentiometer. One end of the sliding potentiometer is electrically connected to a digital display screen. A threaded plate is slidably connected to the bottom of the sliding potentiometer. A potentiometer bracket is fixedly connected to the upper end of the threaded plate. A slider is slidably connected to the top of the sliding potentiometer. An upper wheel shaft is fixedly installed at the center end of one side of the slider. A hanging plate is fixedly connected to one side of the slider. A groove is opened on the surface of the hanging plate.

[0008] As a preferred embodiment of this utility model, a tensioning frame is fixed to the outside of the sliding potentiometer, and a threaded rod is slidably connected inside the tensioning frame. The outer periphery of the threaded rod passes through the tensioning frame and is slidably connected to the slider. The bottom of the threaded rod is threadedly connected to the threaded plate.

[0009] As a preferred embodiment of this utility model, a tension knob is fixedly connected to the upper end of the threaded rod, and a potentiometer push rod is provided at the upper end of the sliding potentiometer, and the potentiometer push rod is slidably connected to the inside of the sliding potentiometer.

[0010] As a preferred embodiment of this utility model, a spring is sleeved on the lower outer periphery of the threaded rod, and the upper and lower ends of the spring are in contact with the bottom of the slider and the upper end of the threaded plate, respectively.

[0011] As a preferred embodiment of this utility model, the outer circumference of the upper wheel shaft is rotatably connected to an upper wheel, and the outer circumference of the upper wheel is connected to a lower wheel via a saw blade drive.

[0012] As a preferred embodiment of this utility model, one side of the potentiometer push rod passes through the slot and is fixedly connected to the hanging plate, and one side of the sliding potentiometer is fixedly connected to the potentiometer bracket.

[0013] As a preferred technical solution of this utility model, the tension knob has anti-slip textures around its surface.

[0014] The beneficial effects of this utility model are:

[0015] 1. This type of band saw with tension display device adjusts the tension of the saw blade by rotating a threaded rod and rotating the tension knob to adjust the height of the threaded plate and move the upper wheel up and down.

[0016] 2. This type of band saw with a tension display device uses a spring to control the tension of the saw blade through its rebound force, allowing for better control over the blade's tension. Simultaneously, the potentiometer push rod moves along the mounting plate through the slot, causing the values ​​on the digital display screen to change accordingly. Adjusting the position of the upper wheel displays the tension value in real time, making adjustments more accurate and convenient for customers. This invention features a simple and reasonable structure, novel design, and easy and convenient operation, possessing high practical value. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1This is a schematic diagram of the installation of a digital display screen and a sliding potentiometer for a band saw with a tension display device according to this utility model.

[0019] Figure 2 This is an exploded view of a sliding potentiometer tensioning device for a band saw with a tension display device according to this utility model.

[0020] Figure 3 This is a schematic diagram of the spring structure of a band saw with a tension display device according to this utility model;

[0021] Figure 4 This is a schematic diagram of the saw blade structure of a band saw machine with a tension display device according to this utility model;

[0022] Figure 5 This is a simplified diagram illustrating the working principle of a band saw with a tension display device according to this utility model.

[0023] In the diagram: 1. Sliding potentiometer; 101. Potentiometer push rod; 2. Digital display screen; 3. Threaded plate; 4. Potentiometer bracket; 5. Spring; 6. Hanging plate; 601. Groove; 7. Upper wheel shaft; 8. Slider; 9. Tensioning frame; 10. Threaded rod; 11. Tensioning knob; 12. Upper wheel; 13. Saw blade; 14. Lower wheel. Detailed Implementation

[0024] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0025] Example: Figures 1-5 As shown, this utility model discloses a band saw with a tension display device, including a sliding potentiometer 1. One end of the sliding potentiometer 1 is electrically connected to a digital display screen 2. A threaded plate 3 is slidably connected to the bottom of the sliding potentiometer 1. A potentiometer bracket 4 is fixedly connected to the upper end of the threaded plate 3. A slider 8 is slidably connected to the top of the sliding potentiometer 1. An upper wheel shaft 7 is fixedly installed at the center end of one side of the slider 8. A hanging plate 6 is fixedly connected to one side of the slider 8. A groove 601 is opened on the surface of the hanging plate 6.

[0026] The sliding potentiometer 1 is externally fixed with a tensioning frame 9, and a threaded rod 10 is slidably connected inside the tensioning frame 9. The outer periphery of the threaded rod 10 passes through the tensioning frame 9 and is slidably connected to the slider 8. The bottom of the threaded rod 10 is threadedly connected to the threaded plate 3. By setting the threaded rod 10, the threaded plate 3 can be moved by rotating the threaded rod 10, thereby adjusting the height of the threaded plate 3.

[0027] The threaded rod 10 is fixedly connected to a tension knob 11 at its upper end, and a potentiometer push rod 101 is provided at the upper end of the sliding potentiometer 1. The potentiometer push rod 101 is slidably connected to the inside of the sliding potentiometer 1. By setting the tension knob 11, the threaded rod 10 can be rotated by rotating the tension knob 11.

[0028] A spring 5 is sleeved on the lower outer circumference of the threaded rod 10, and the upper and lower ends of the spring 5 are in contact with the bottom of the slider 8 and the upper end of the threaded plate 3, respectively. When the spring 5 is compressed, the reaction force is applied to the slider 8, causing the slider 8 to move upward together with the upper wheel shaft 7 and the upper wheel 12. This increases the distance between the upper wheel 12 and the lower wheel 14, and the saw blade 13 is tensioned, so that the saw blade 13 maintains an appropriate tension.

[0029] The upper wheel 12 is rotatably connected to the outer circumference of the upper wheel shaft 7, and the lower wheel 14 is connected to the outer circumference of the upper wheel 12 through the saw blade 13. By setting the saw blade 13, the upper wheel 12 and the lower wheel 14 are connected through the saw blade 13. The position of the upper wheel 12 is adjusted by rotating the tension knob 11, and the tension value is displayed in real time, making the adjustment more accurate and convenient for customers to operate.

[0030] One side of the potentiometer push rod 101 passes through the slot 601 and is fixedly connected to the hanging plate 6, and one side of the slider potentiometer 1 is fixedly connected to the potentiometer bracket 4. By setting the slot 601, the potentiometer push rod 101 can move through the slot 601 and follow the hanging plate 6, and the value on the digital display screen 2 changes accordingly.

[0031] The tension knob 11 has anti-slip textures around its surface. These textures increase the roughness of the contact surface, thereby improving friction and ensuring that the user can hold the tension knob 11 firmly and rotate it without slipping.

[0032] Among them, see Figure 5 In the diagram, A represents the screen, and B represents the sliding potentiometer tensioning device structure formed by all the above structures.

[0033] Working Principle: In use, this sliding potentiometer is used in conjunction with the display screen. When the machine is powered on, the tension value will be displayed on the digital display screen 2. If the tension value is too low, rotate the tension knob 11 to rotate the threaded rod 10, causing the threaded plate 3 to move upwards. The threaded plate 3 compresses the spring 5, and the reaction force of the spring 5 is applied to the slider 8, causing the slider 8, along with the upper wheel shaft 7 and the upper wheel 12, to move upwards. This increases the distance between the upper wheel 12 and the lower wheel 14, thus tensioning the saw blade 13. Due to the tension of the saw blade 13, as the threaded plate 3 and the slider 8 move upwards simultaneously, the relative distance between them decreases, causing the potentiometer push rod 101 to shift. The value on the digital display screen 2 changes accordingly until the appropriate value is achieved. If the tension is too high, the opposite adjustment will occur.

[0034] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A band saw machine with a band tension display device, comprising a slide rule potentiometer (1), characterized in that, One end of the sliding potentiometer (1) is electrically connected to a digital display screen (2). A threaded plate (3) is slidably connected to the bottom of the sliding potentiometer (1). A potentiometer bracket (4) is fixedly connected to the upper end of the threaded plate (3). A slider (8) is slidably connected to the top of the sliding potentiometer (1). An upper wheel shaft (7) is fixedly installed at the center end of one side of the slider (8). A hanging plate (6) is fixedly connected to one side of the slider (8). A groove (601) is opened on the surface of the hanging plate (6).

2. The band saw machine with a band tension display device according to claim 1, characterized in that, The sliding potentiometer (1) is fixed with a tensioning frame (9) on the outside. A threaded rod (10) is slidably connected inside the tensioning frame (9). The outer periphery of the threaded rod (10) passes through the tensioning frame (9) and is slidably connected to the slider (8). The bottom of the threaded rod (10) is threadedly connected to the threaded plate (3).

3. A band saw with a tension display device according to claim 2, characterized in that, The upper end of the threaded rod (10) is fixedly connected to a tension knob (11), and the upper end of the sliding potentiometer (1) is provided with a potentiometer push rod (101), and the potentiometer push rod (101) is slidably connected to the inside of the sliding potentiometer (1).

4. A band saw with a tension display device according to claim 2, characterized in that, A spring (5) is sleeved on the outer periphery of the lower end of the threaded rod (10), and the upper and lower ends of the spring (5) are in contact with the bottom of the slider (8) and the upper end of the threaded plate (3), respectively.

5. A band saw with a tension display device according to claim 1, characterized in that, The upper wheel (12) is rotatably connected to the outer circumference of the upper wheel axle (7), and the lower wheel (14) is connected to the outer circumference of the upper wheel (12) via a saw blade (13).

6. A band saw with a tension display device according to claim 3, characterized in that, One side of the potentiometer push rod (101) passes through the slot (601) and is fixedly connected to the hanging plate (6), and one side of the sliding potentiometer (1) is fixedly connected to the potentiometer bracket (4).

7. A band saw with a tension display device according to claim 3, characterized in that, The tension knob (11) has anti-slip textures around its surface.

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