Visual tension adjusting device for band sawing machine

Abstract

This invention discloses a visual tension adjustment device for a band saw, comprising a fixed base connected to a movable base via a shoulder pin. Guide bars are fixedly connected to both sides of the movable base, and an adjusting screw passes through it. A wheel axle is connected vertically to the adjusting screw. A tension block, a tension spring, and a set screw are sequentially arranged inside the adjusting screw on one side of the wheel axle, while a tension indicator rod is installed inside the adjusting screw on the other side of the wheel axle. The entire device is fixed to the band saw via the fixed base. The angle is adjusted by the adjusting screw, thereby adjusting the tension of the wheel axle. This mechanism allows for simple and convenient adjustment of the saw band tension and roller tilt angle. It has a compact structure, is easy to operate, and the tension value can be read in real time. It provides reliable support for the adjustment and testing of sawing process parameters.

Description

Technical Field

[0001] This invention belongs to the technical field of band saws, specifically a visual tension adjustment device for band saws. Background Technology

[0002] During operation, the saw blade of a band saw expands due to heat, resulting in a decrease in tension. The longer the saw blade, the greater the change in tension. This reduced tension weakens the cutting force of the saw blade, leading to poor cutting results. Furthermore, the reduced tension increases the lateral sway of the saw blade, making it highly susceptible to breakage due to uneven stress, thus affecting normal production. Therefore, the band saw blade needs to operate under a certain and reasonable tension to ensure sawing stability, reduce abnormal vibration, improve the surface quality of the cut surface, and extend the lifespan of the saw blade.

[0003] Existing tension adjustment methods include manual adjustment, which is time-consuming, labor-intensive, and inefficient; and hydraulic tension mechanisms and counterweight tension mechanisms, which are troublesome to manufacture and have poor compatibility with band saws. Summary of the Invention

[0004] The present invention provides a visual tension adjustment device for band saws, which solves the problems of low tension adjustment efficiency and poor compatibility between existing tension adjustment mechanisms and band saws.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A visual tension adjustment device for a band saw includes a fixed base, which is connected to a movable base via a shoulder pin. Guide bars are fixedly connected to both sides of the movable base, and an adjustment screw is threaded through the movable base. An axle is connected to the vertical direction of the adjustment screw. A tension top block, a tension spring, and a set screw are sequentially arranged inside the adjustment screw on one side of the axle, and a tension indicator rod is arranged inside the adjustment screw on the other side of the axle.

[0007] Preferably, the axle is provided with U-shaped grooves on both sides of the end near the adjusting screw, and the U-shaped grooves are slidably connected to the guide bar.

[0008] Preferably, the movable base has screw holes on its side.

[0009] Preferably, the adjusting screw is a through-hole pipe with an external thread structure in the middle, which is adapted to the screw hole on one side of the movable base.

[0010] Preferably, the tension top block is connected to the tension indicator rod by a screw.

[0011] Preferably, the tension spring abuts against the wheel axle.

[0012] Preferably, the tension indicator rod has the spring compression amount and the corresponding saw band tension value engraved on the side away from the wheel axle.

[0013] Preferably, the adjusting screw has a threaded hole on the side near the set screw.

[0014] Preferably, the adjusting screw has a hexagonal head structure on the side away from the set screw.

[0015] Preferably, an angle adjustment screw is provided on one side of the movable base.

[0016] Compared with existing technologies, the present invention has the following advantages: The present invention provides a visual tension adjustment device for band saws. The entire device is fixed to the band saw via a base, and the angle is adjusted by an adjusting screw, which in turn adjusts the tension of the wheel axle. This mechanism allows for simple and convenient adjustment of the saw band tension and roller tilt angle. It has a compact structure, is easy to operate, and the tension value can be read in real time. It provides reliable support for adjusting and testing sawing process parameters.

[0017] Furthermore, the tension indicator rod has the spring compression amount and the corresponding saw band tension value engraved on the side away from the wheel axle, allowing for a direct and reliable reading of the actual tension value. Attached Figure Description

[0018] Figure 1 It is a vertical band saw.

[0019] Figure 2 This is a schematic diagram of a visual tension adjustment device for a band saw according to the present invention;

[0020] Figure 3 This is another schematic diagram of a visual tension adjustment device for a band saw according to the present invention;

[0021] Figure 4 This is a schematic diagram of the fixed base of the present invention;

[0022] Figure 5 This is a schematic diagram of a visual tension adjustment device for a band saw machine with the fixed base removed, according to the present invention.

[0023] Figure 6 This is a cross-sectional view of a visual tension adjustment device for a band saw according to the present invention.

[0024] Figure 7 This is a top view of a visual tension adjustment device for a band saw according to the present invention;

[0025] Figure 8 For the present invention Figure 6 BB section view;

[0026] Figure 9 For the present invention Figure 7CC section view;

[0027] Figure 10 For the present invention Figure 6 Enlarged view at point F;

[0028] Figure 11 For the present invention Figure 7 EE cross-section;

[0029] Figure 12 This is a schematic diagram of the tilt angle adjustment of a visual tension adjustment device for a band saw according to the present invention;

[0030] Figure 13 This is a schematic diagram of another tilt angle adjustment of a visual tension adjustment device for a band saw according to the present invention;

[0031] Figure 14 This is a schematic diagram of the installation of a visual tension adjustment device for a band saw according to the present invention;

[0032] In the diagram, 1-fixed base, 2-movable base, 3-tilt adjustment screw, 4-guide bar, 5-movable base support block, 6-screw, 7-elastic pin, 8-adjusting screw, 9-tension indicator rod, 10-tension top block, 11-screw, 12-tension spring, 13-set screw, 14-adjusting screw, 15-tilt return spring, 16-screw, 17-shoulder pin, 18-axle. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing the present invention 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, and therefore should not be construed as a limitation of the present invention. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0038] In the description of the embodiments of the present invention, 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 the present invention according to the specific circumstances.

[0039] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0040] like Figure 2 The present invention provides a visual tension adjustment device for a band saw, including a fixed base 1, which is connected to a movable base 2 via a shoulder pin 17. Guide bars 4 are fixedly connected to both sides of the movable base 2, and an adjustment screw 8 is threaded through the movable base 2. A wheel axle 18 is connected to the vertical direction of the adjustment screw 8. A tension top block 10, a tension spring 12, and a set screw 13 are sequentially arranged inside the adjustment screw 8 on one side of the wheel axle 18, and a tension indicator rod 9 is arranged inside the adjustment screw 8 on the other side of the wheel axle 18.

[0041] Another embodiment of the present invention provides a visual tension adjustment device for a band saw, including a fixed base 1, which is connected to a movable base 2 via a shoulder pin 17. Guide bars 4 are fixedly connected to both sides of the movable base 2, and an adjustment screw 8 is threaded through the movable base 2. An axle 18 is connected to the vertical direction of the adjustment screw 8. A tension top block 10, a tension spring 12, and a set screw 13 are sequentially arranged inside the adjustment screw 8 on one side of the axle 18, and a tension indicator rod 9 is arranged inside the adjustment screw 8 on the other side of the axle 18.

[0042] The axle 18 has U-shaped grooves on both sides of its end near the adjusting screw 8, and the U-shaped grooves are slidably connected to the guide bar 4.

[0043] Another embodiment of the present invention provides a visual tension adjustment device for a band saw, including a fixed base 1, which is connected to a movable base 2 via a shoulder pin 17. Guide bars 4 are fixedly connected to both sides of the movable base 2, and an adjustment screw 8 is threaded through the movable base 2. An axle 18 is connected to the vertical direction of the adjustment screw 8. A tension top block 10, a tension spring 12, and a set screw 13 are sequentially arranged inside the adjustment screw 8 on one side of the axle 18, and a tension indicator rod 9 is arranged inside the adjustment screw 8 on the other side of the axle 18.

[0044] The movable base 2 has screw holes on its side.

[0045] Another embodiment of the present invention provides a visual tension adjustment device for a band saw, including a fixed base 1, which is connected to a movable base 2 via a shoulder pin 17. Guide bars 4 are fixedly connected to both sides of the movable base 2, and an adjustment screw 8 is threaded through the movable base 2. An axle 18 is connected to the vertical direction of the adjustment screw 8. A tension top block 10, a tension spring 12, and a set screw 13 are sequentially arranged inside the adjustment screw 8 on one side of the axle 18, and a tension indicator rod 9 is arranged inside the adjustment screw 8 on the other side of the axle 18.

[0046] The adjusting screw 8 is a through-hole pipe with an external thread structure in the middle, which is compatible with the screw hole on one side of the movable base 2.

[0047] Another embodiment of the present invention provides a visual tension adjustment device for a band saw, including a fixed base 1, which is connected to a movable base 2 via a shoulder pin 17. Guide bars 4 are fixedly connected to both sides of the movable base 2, and an adjustment screw 8 is threaded through the movable base 2. An axle 18 is connected to the vertical direction of the adjustment screw 8. A tension top block 10, a tension spring 12, and a set screw 13 are sequentially arranged inside the adjustment screw 8 on one side of the axle 18, and a tension indicator rod 9 is arranged inside the adjustment screw 8 on the other side of the axle 18.

[0048] The tension top block 10 is connected to the tension indicator rod 9 by screws 11.

[0049] Another embodiment of the present invention provides a visual tension adjustment device for a band saw, including a fixed base 1, which is connected to a movable base 2 via a shoulder pin 17. Guide bars 4 are fixedly connected to both sides of the movable base 2, and an adjustment screw 8 is threaded through the movable base 2. An axle 18 is connected to the vertical direction of the adjustment screw 8. A tension top block 10, a tension spring 12, and a set screw 13 are sequentially arranged inside the adjustment screw 8 on one side of the axle 18, and a tension indicator rod 9 is arranged inside the adjustment screw 8 on the other side of the axle 18.

[0050] The tension spring 12 abuts against the axle 18.

[0051] Another embodiment of the present invention provides a visual tension adjustment device for a band saw, including a fixed base 1, which is connected to a movable base 2 via a shoulder pin 17. Guide bars 4 are fixedly connected to both sides of the movable base 2, and an adjustment screw 8 is threaded through the movable base 2. An axle 18 is connected to the vertical direction of the adjustment screw 8. A tension top block 10, a tension spring 12, and a set screw 13 are sequentially arranged inside the adjustment screw 8 on one side of the axle 18, and a tension indicator rod 9 is arranged inside the adjustment screw 8 on the other side of the axle 18.

[0052] The tension indicator rod 9 has the spring compression amount and the corresponding saw band tension value engraved on the side away from the wheel axle 18.

[0053] Another embodiment of the present invention provides a visual tension adjustment device for a band saw, including a fixed base 1, which is connected to a movable base 2 via a shoulder pin 17. Guide bars 4 are fixedly connected to both sides of the movable base 2, and an adjustment screw 8 is threaded through the movable base 2. An axle 18 is connected to the vertical direction of the adjustment screw 8. A tension top block 10, a tension spring 12, and a set screw 13 are sequentially arranged inside the adjustment screw 8 on one side of the axle 18, and a tension indicator rod 9 is arranged inside the adjustment screw 8 on the other side of the axle 18.

[0054] The adjusting screw 8 has a threaded hole on the side near the set screw 13.

[0055] Another embodiment of the present invention provides a visual tension adjustment device for a band saw, including a fixed base 1, which is connected to a movable base 2 via a shoulder pin 17. Guide bars 4 are fixedly connected to both sides of the movable base 2, and an adjustment screw 8 is threaded through the movable base 2. An axle 18 is connected to the vertical direction of the adjustment screw 8. A tension top block 10, a tension spring 12, and a set screw 13 are sequentially arranged inside the adjustment screw 8 on one side of the axle 18, and a tension indicator rod 9 is arranged inside the adjustment screw 8 on the other side of the axle 18.

[0056] The adjusting screw 8 has a hexagonal head structure on the side away from the set screw 13.

[0057] Another embodiment of the present invention provides a visual tension adjustment device for a band saw, including a fixed base 1, which is connected to a movable base 2 via a shoulder pin 17. Guide bars 4 are fixedly connected to both sides of the movable base 2, and an adjustment screw 8 is threaded through the movable base 2. An axle 18 is connected to the vertical direction of the adjustment screw 8. A tension top block 10, a tension spring 12, and a set screw 13 are sequentially arranged inside the adjustment screw 8 on one side of the axle 18, and a tension indicator rod 9 is arranged inside the adjustment screw 8 on the other side of the axle 18.

[0058] An angle adjustment screw 3 is provided on one side of the movable base 2.

[0059] Another embodiment of the present invention provides a visual tension adjustment device for a band saw, which consists of two parts: a base sub-assembly and a tension adjustment sub-assembly. Figure 5 and Figure 4 As shown, the tension adjustment sub-assembly is connected to the base sub-assembly via a shoulder pin 17, enabling small-angle tilt adjustment of the wheel axle 18. Figure 6 and Figure 7 As shown, this is to adjust the saw blade so that it does not come off during operation.

[0060] The base assembly is the main part of this mechanism, and the fixed base 1 is fixed to the equipment by screws.

[0061] The tension adjustment sub-assembly is the movable part of this mechanism, which has the function of adjusting the tilt angle of the driven wheel 1 and the tension of the saw belt. The movable base 2 has guide bars 4 fixedly connected to both sides in the middle. One end of the wheel axle 18 has a U-shaped groove and a through hole on both sides. The guide bars 4 are installed on the U-shaped groove to form a sliding pair. The other end of the wheel axle 18 is fixedly connected to the driven wheel 1 of the equipment.

[0062] The adjusting screw 8 is a through-hole pipe with an external thread in the middle section, which mates with a threaded hole on one side of the movable base 2 to form a threaded connection. One end of the adjusting screw 8 is a stepped optical shaft, which fits into the through hole at one end of the wheel axle 18, forming a sliding pair. One side of the wheel axle 18 is constrained by the outer stepped surface of one end of the adjusting screw 8, and the other side is constrained by the tension block 10.

[0063] The tension top block 10 is fixed to the tension indicator rod 9 by screws 11 to form a whole, and under the action of tension spring 12, it abuts against one end of the wheel axle 18 to provide effective tension for the saw blade.

[0064] The tension indicator rod 9 has markings on one end indicating the spring compression and the corresponding saw band tension value calculated geometrically. The actual tension value can be read intuitively and reliably by observing and adjusting the protrusion of one end of the screw 8.

[0065] Based on the above functional requirements, one end of the adjusting screw 8 has a threaded hole for installing the set screw 13 to encapsulate the tension spring 12 inside the adjusting screw 8. The other end of the adjusting screw 8 has a hexagonal head structure on its outer circumference for rotating to adjust the relative position of the adjusting screw 8 and the movable base 2, that is, to adjust the compression of the tension spring 12. At the same time, to ensure the assemblability of the tension top block 10, the tension top block 10 passes through the square slot through hole provided in the middle part of the adjusting screw 8.

[0066] This mechanism is installed behind the driven wheel 1 of the equipment, such as Figure 14 As shown, the adjusting screw 8 is designed to be relatively long and extend beyond the outer sheet metal of the equipment so that the operator can adjust and read the tension value from the outside.

[0067] Implementation and adjustment principles:

[0068] ① After loosening driven wheel 1, install the saw blade.

[0069] When the adjusting screw 8 is turned clockwise, one side of the wheel axle 18 is restricted by the outer circular stepped surface of one end of the adjusting screw 8, which causes the driven wheel 1 to loosen. At this time, the tension value is indicated as "0".

[0070] ② Raise driven wheel 1 and tighten saw blade.

[0071] When the adjusting screw 8 is turned in reverse, the tension top block 10 presses against the other end of the wheel axle 18 under the action of the tension spring 12. The tension of the saw band can be adjusted as needed and is reflected in the tension value indicator.

[0072] ③ Adjust the tilt angle of driven wheel 1 to prevent the saw from coming off track.

[0073] Manually rotate the driven wheel 1 and observe the deflection direction of the saw band when it rotates. Change the position of the tilt angle adjusting screw 3 to adjust the tilt angle value of the wheel axle 18 by ±3° within a small range, thereby changing the deflection direction of the saw band when it rotates and reducing the risk of the saw coming off.

[0074] Although embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the specific embodiments and application fields described above. The specific embodiments described above are merely illustrative and instructive, and not restrictive. Those skilled in the art, guided by the specification, can make many other modifications without departing from the scope of the claims of the present invention, and all of these modifications are within the scope of protection of the present invention.

Claims

1. A visual tension adjustment device for a band saw, characterized in that, Includes a fixed base (1), which is connected to a movable base (2) via a shoulder pin (17). Guide bars (4) are fixedly connected to both sides of the movable base (2). An adjusting screw (8) is threaded through the movable base (2). A wheel axle (18) is connected to the vertical direction of the adjusting screw (8). A tension top block (10), a tension spring (12), and a set screw (13) are sequentially arranged inside the adjusting screw (8) on one side of the wheel axle (18). A tension indicator rod (9) is arranged inside the adjusting screw (8) on the other side of the wheel axle (18). The axle (18) has U-shaped grooves on both sides of the end near the adjusting screw (8), and the U-shaped grooves are slidably connected to the guide bar (4); The movable base (2) has screw holes on its side; The adjusting screw (8) is a through-hole pipe with an external thread structure in the middle part, which is compatible with the screw hole on one side of the movable base (2); The tension top block (10) is connected to the tension indicator rod (9) by a screw (11); An angle adjustment screw (3) is provided on one side of the movable base (2).

2. The visual tension adjustment device for a band saw according to claim 1, characterized in that, The tension spring (12) abuts against the axle (18).

3. The visual tension adjustment device for a band saw according to claim 1, characterized in that, The tension indicator rod (9) has the spring compression amount and the corresponding saw band tension value engraved on the side away from the wheel axle (18).

4. The visual tension adjustment device for a band saw according to claim 1, characterized in that, The adjusting screw (8) has a threaded hole on the side near the set screw (13).

5. A visual tension adjustment device for a band saw according to claim 1, characterized in that, The adjusting screw (8) has a hexagonal head structure on the side away from the set screw (13).

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