Band saw machine back pressure mechanism

Abstract

The utility model discloses a band sawing machine back pressure mechanism, including base, setting in the stand of base, the sawing frame of lifting slide setting in the stand and the lifting assembly of driving sawing frame to lift, the lifting assembly includes the ball screw, still includes back pressure support subassembly, back pressure support subassembly does not interfere with sawing frame movement and always provides the upward supporting force to sawing frame. The utility model has the advantages and effects that: through the back pressure support spare of setting to provide the upward supporting force to sawing frame, then alleviates the gravity of sawing frame up and down, in this way to share the stress on the ball screw, then prolongs the service life of ball screw, to reduce the maintenance cost of equipment later period.

Description

Technical Field

[0001] This utility model relates to a band saw, and more particularly to a band saw back pressure mechanism. Background Technology

[0002] A band saw is a machine tool that uses a metal saw blade as a cutting tool. It uses the high-speed rotating saw blade to precisely cut metal materials. Its outstanding core advantages are narrow kerf, excellent cutting efficiency, low energy consumption and minimal material waste. Therefore, it is widely used in cutting ferrous metals (such as square bars, round bars, and profiles) and non-ferrous metals (such as aluminum and copper), and can even handle non-metallic materials.

[0003] Existing band saws mainly consist of a base, a vertical frame mounted on the base, a saw frame that slides and rises on the vertical frame, and a lifting assembly that drives the saw frame to move up and down. Currently, common lifting assembly structures use a motor paired with a ball screw with a self-locking mechanism for drive. However, due to the large size and heavy weight of the saw frame itself, and the presence of heavy components such as the drive motor and transmission mechanism, all of which are borne by the ball screw, the screw and nut parts of the ball screw are under high load for extended periods. Over time, this significantly shortens its lifespan, requiring frequent replacement and maintenance, thus greatly increasing the long-term maintenance costs of the equipment. Utility Model Content

[0004] The purpose of this invention is to provide a back pressure mechanism for a band saw, which can reduce the stress on the ball screw, thereby extending its service life and reducing the maintenance cost of the equipment in the later stage.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a band saw back pressure mechanism, including a base, a stand on the base, a saw frame that is slidably and vertically mounted on the stand, and a lifting component that drives the saw frame to move up and down. The lifting component includes a ball screw and a back pressure support component. The back pressure support component does not interfere with the movement of the saw frame and always provides an upward support force to the saw frame.

[0006] The back pressure support assembly is further configured such that it is installed between the saw frame and the base and / or between the saw frame and the upright.

[0007] The back pressure support assembly is further configured to include at least two back pressure support members, which are arranged at intervals along the horizontal direction.

[0008] The back pressure support is further configured as a back pressure strut.

[0009] The back pressure support rod is further configured such that its cylinder is located on the base and its telescopic rod is supported below the saw frame.

[0010] The back pressure strut is further configured such that the cylinder body is located inside the base and at least a portion of the cylinder body is exposed on the side of the base facing the saw frame.

[0011] The saw frame is further configured such that a drive motor is provided on the saw frame, and the lifting assembly is located on the side of the upright frame near the drive motor.

[0012] The lifting assembly is further configured such that: the lifting assembly also includes a driving component; the ball screw is rotatably mounted on the upright frame; the ball screw nut is fixedly mounted on the saw frame; and the driving component is connected to the ball screw.

[0013] In summary, this utility model has the following beneficial effects: 1. By providing upward support to the saw frame through the back pressure support component, the weight of the saw frame is reduced, thereby distributing the force on the ball screw, extending the service life of the ball screw, and reducing the maintenance cost of the equipment in the later stage. 2. By setting the number of back pressure support components to at least two, multi-point support can be formed for the saw frame, thereby ensuring the stability of the support. 3. By setting the cylinder part of the back pressure support component inside the base, the length of the connected back pressure support component will not affect the original lifting stroke of the saw frame, and the installation space occupied by the back pressure support component can be reduced to the greatest extent, ensuring the compactness of the original structure of the equipment. 4. Since the weight of the saw frame is heavier on the side closer to the drive motor, the length of the lever arm is reduced by setting the lifting component closer to the drive motor, thus better balancing the force on both sides, thereby extending the service life of the equipment. Attached Figure Description

[0014] Figure 1 A perspective view of an embodiment; Figure 2 This is a schematic diagram of the structure of an embodiment; Figure 3 This is a structural schematic diagram from another perspective of the embodiment.

[0015] In the diagram: 1. Base; 2. Stand; 3. Saw frame; 41. Ball screw; 42. Drive component; 5. Back pressure support component; 6. Drive motor. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings.

[0017] refer to Figures 1 to 3A band saw back pressure mechanism includes a base 1, a stand 2 fixedly mounted on the base 1, a saw frame 3 slidably mounted on the stand 2, and a lifting assembly for driving the saw frame 3 to move up and down. The lifting assembly includes a ball screw 41. It also includes a back pressure support assembly that does not interfere with the movement of the saw frame 3 and always provides an upward supporting force to the saw frame 3.

[0018] The back pressure support assembly is installed between the saw frame 3 and the base 1 and / or between the saw frame 3 and the upright 2. Preferably, the back pressure support assembly is installed between the saw frame 3 and the base 1. The back pressure support assembly includes at least two back pressure support members 5, which are arranged at intervals along the horizontal direction. Preferably, there are two back pressure support members 5, which are arranged at intervals along the length of the saw frame 3.

[0019] The back pressure support 5 is a back pressure strut, also called a damping strut. The cylinder of the back pressure strut is located on the base 1, and the telescopic rod is supported below the saw frame 3. The cylinder of the back pressure strut is fixed inside the base 1, with at least a portion of the cylinder protruding from the side of the base 1 facing the saw frame 3.

[0020] A drive motor 6 is mounted on the saw frame 3, and a lifting assembly is located on the upright frame 2 near the drive motor 6. The lifting assembly also includes a drive component 42. The ball screw 41 is rotatably mounted on the upright frame 2, and the nut of the ball screw 41 is fixedly mounted on the saw frame 3 and connected to the screw. The drive component 42 is a motor fixedly mounted on the upright frame 2, and the motor output shaft is fixedly connected to the ball screw 41. The band saw itself has a prior art structure, and its specific structure and principle will not be elaborated here. This application mainly protects the back pressure mechanism.

[0021] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A band saw back pressure mechanism, comprising a base (1), a stand (2) disposed on the base (1), a saw frame (3) slidably and vertically disposed on the stand (2), and a lifting assembly for driving the saw frame (3) to move up and down, wherein the lifting assembly includes a ball screw (41), characterized in that: It also includes a back pressure support assembly that does not interfere with the movement of the saw frame (3) and always provides an upward support force to the saw frame (3).

2. The band saw back pressure mechanism according to claim 1, characterized in that: The back pressure support assembly is installed between the saw frame (3) and the base (1) and / or between the saw frame (3) and the upright (2).

3. The band saw back pressure mechanism according to claim 2, characterized in that: The back pressure support assembly includes at least two back pressure support members (5), and the at least two back pressure support members (5) are arranged at intervals along the horizontal direction.

4. The band saw back pressure mechanism according to claim 3, characterized in that: The back pressure support (5) is a back pressure strut.

5. The band saw back pressure mechanism according to claim 4, characterized in that: The cylinder of the back pressure support rod is located on the base (1), and the telescopic rod is supported by the saw frame (3) below it.

6. The band saw back pressure mechanism according to claim 5, characterized in that: The cylinder of the back pressure strut is located inside the base (1) and at least part of the cylinder is exposed on the side of the base (1) facing the saw frame (3).

7. The band saw back pressure mechanism according to claim 1, characterized in that: The saw frame (3) is equipped with a drive motor (6), and the lifting assembly is located on the side of the upright frame (2) near the drive motor (6).

8. The band saw back pressure mechanism according to claim 7, characterized in that: The lifting assembly also includes a drive component (42), the ball screw (41) is rotatably mounted on the upright frame (2), the nut of the ball screw (41) is fixedly mounted on the saw frame (3), and the drive component (42) is connected to the ball screw (41).

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