Abrasive belt oscillation mechanism

Abstract

The utility model discloses an abrasive belt oscillating mechanism, and relates to the technical field of belt sanders. A workbench is fixed to the upper surface of the box body, a rotating motor is arranged on the right portion of the box body, two symmetrically-arranged rollers are arranged above the left portion and the right portion of the box body, the rotating shaft end of the rotating motor is fixedly connected with the roller close to the rotating shaft end of the rotating motor, and a motor connecting plate is arranged under the rotating motor. A connecting rod is arranged in front of the motor connecting plate, a locking handle is arranged in front of the connecting rod, and an abrasive belt body is arranged on the circumferential side between the two rollers in a sleeving mode. Through cooperation of the connecting rod and the locking handle, whether the rotating strip makes contact with the bearing in the eccentric state or not can be controlled, so that the abrasive belt moves back and forth, and the problems that due to the fact that a single position of the surface side of the abrasive belt is abraded, the abraded position is uneven, the service life of the abrasive belt is shortened, and the abrasive belt is damaged are solved. And the grinding precision of the workpiece is poor.

Description

Technical Field

[0001] The utility model belongs to the technical field related to abrasive belt machines, in particular to an abrasive belt oscillating mechanism. Background Art

[0002] The belt sander is mainly used for surface grinding of wood. The belt sander uses the grinding performance of the sand on the belt to grind the workpiece. The surface quality and precision of the workpiece after the belt sanding are high, but it still has the following disadvantages in actual use:

[0003] When grinding, the traditional belt machine will not oscillate the belt up and down. Therefore, after a long period of working, the belt will be worn at a single location on the surface of the belt, resulting in uneven wear position, which will reduce the service life of the belt. When grinding workpieces, it will lead to poor grinding accuracy of the workpiece, affecting the quality of workpiece processing. Utility Model Content

[0004] The utility model aims to provide a sanding belt oscillation mechanism, which can control whether the rotating bar contacts the bearing in an eccentric state through the cooperation between the connecting rod and the locking handle, so as to realize the back and forth movement of the sanding belt, and solve the problem that there is wear at a single position on the surface side of the sanding belt, resulting in uneven wear position, which will reduce the service life of the sanding belt and cause poor grinding accuracy of the workpiece.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses an abrasive belt oscillating mechanism, comprising a box body, a workbench is fixed on the upper surface of the box body, a rotating motor is arranged at a position on the right side of the box body, two symmetrically arranged rollers are arranged above the left and right parts of the box body, a rotating shaft end of the rotating motor is fixedly connected with adjacent rollers, a motor connecting plate is arranged directly below the rotating motor, a guide sleeve is arranged at a position between the motor connecting plate and the box body, a guide rail slidably engaged with the guide sleeve is fixed to the left side wall of the motor connecting plate, a connecting rod is arranged in front of the motor connecting plate, a locking handle is arranged in front of the connecting rod, and an abrasive belt body is arranged on the peripheral sleeve between the two rollers.

[0007] Furthermore, a bracket is arranged at a position inside the abrasive belt body, and the side walls of the bracket are located at the left and right side walls of the box body.

[0008] Furthermore, the roller located on the left side wall of the box body is rotatably mounted on the side wall of the bracket, the guide sleeve is fixed on the side wall of the bracket, and the locking handle is fixed on the side wall of the bracket.

[0009] Furthermore, a linkage plate is fixed to the rear end of the connecting rod, an arc-shaped opening is opened on the upper part of the locking handle, a screw rod sliding inside the arc-shaped opening is fixed to the front side of the linkage plate, and a locking nut is spirally sleeved around the screw rod passing through the arc-shaped opening.

[0010] Furthermore, a reducer is fixed on the upper surface of the motor connecting plate, and the reducer is connected to the rotating motor through a coupling.

[0011] Furthermore, the extended shaft of the reducer is rotatably installed with an eccentric bearing, and a rotating bar rotatably connected to the locking handle is provided below the bearing. The lower end of the linkage plate is fixedly connected to the rotating bar, and the centerline of the rotating connection between the rotating bar and the locking handle is consistent with the center position of the arc-shaped opening.

[0012] Furthermore, the bracket is installed on the rear side wall of the box body through a provided connecting frame.

[0013] The utility model has the following beneficial effects:

[0014] When the utility model is in use, when the screw on the side wall of the linkage plate is at the right end position of the arc-shaped opening, the linkage plate controls the rotating bar to rotate downward, so that the rotating bar and the bearing are not in a connected relationship, so the sanding belt body does not have an oscillation function. When the screw on the side wall of the linkage plate is driven by the connecting rod to move to the left end position of the arc-shaped opening, the linkage plate will drive the rotating bar to rotate to connect with the peripheral side position of the bearing, and then after the bearing rotates eccentrically, the linkage plate cannot swing up and down. Therefore, under the action of force, the bearing will drive the reducer to move up and down, and thereby control the motor connecting plate to drive the guide rail to move back and forth up and down inside the guide sleeve, and drive the sanding belt body to move back and forth, so as to realize the oscillation function of the sanding belt, avoid uneven wear of the sanding belt, ensure the normal service life of the sanding belt, and effectively control the occurrence of poor precision of the polished workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0016] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0017] Figure 2 It is a right view structural diagram of the utility model;

[0018] Figure 3 It is a schematic diagram of the front structure of the utility model;

[0019] Figure 4 It is a split diagram of the right view structure in the utility model;

[0020] Figure 5It is a schematic diagram of the back structure of the utility model.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Roller; 2. Abrasive belt body; 3. Bracket; 4. Rotating motor; 5. Coupling; 6. Reducer; 7. Motor connecting plate; 8. Bearing; 9. Connecting rod; 901. Locking nut; 902. Linkage plate; 10. Locking handle; 1001. Rotating bar; 1002. Arc mouth; 11. Workbench; 12. Box; 13. Guide sleeve; 14. Guide rail; 15. Connecting frame. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0024] See also Figure 1-5 As shown, the utility model is a sanding belt oscillation mechanism, including a box body 12, a workbench 11 is fixed on the upper surface of the box body 12, a rotating motor 4 is arranged at the position on the right side of the box body 12, and two symmetrically arranged rollers 1 are arranged above the left and right parts of the box body 12, the rotating shaft ends of the rotating motor 4 are fixedly connected to the adjacent rollers 1, a motor connecting plate 7 is arranged directly below the rotating motor 4, a guide sleeve 13 is arranged at the position between the motor connecting plate 7 and the box body 12, and a guide rail 14 slidably engaged with the guide sleeve 13 is fixed to the left side wall of the motor connecting plate 7. When the motor connecting plate 7 moves back and forth up and down, it will directly drive the guide rail 14 to slide along the guide sleeve 13, a connecting rod 9 is arranged in front of the motor connecting plate 7, and a locking handle 10 is arranged in front of the connecting rod 9, and a sanding belt body 2 is arranged on the circumferential side sleeve between the two rollers 1.

[0025] Among them Figure 1 , 5 As shown, a bracket 3 is provided at the position inside the sanding belt body 2, and the side walls of the bracket 3 are located at the left and right side walls of the box body 12, the roller 1 located on the left side wall of the box body 12 is rotatably installed on the side wall of the bracket 3, the guide sleeve 13 is fixed on the side wall of the bracket 3, the locking handle 10 is fixed on the side wall of the bracket 3, and the bracket 3 is installed on the rear side wall position of the box body 12 through the provided connecting frame 15. Through the installation and use of the bracket 3, the motor connecting plate 7 can be limited, thereby limiting the rotating motor 4.

[0026] Among them Figure 1 , 3As shown in , 4 and 5, a linkage plate 902 is fixed to the rear end of the connecting rod 9, an arc-shaped opening 1002 is opened on the upper part of the locking handle 10, a screw rod sliding in the inner position of the arc-shaped opening 1002 is fixed to the front side of the linkage plate 902, and a locking nut 901 is spirally sleeved on the circumference of the screw rod passing through the arc-shaped opening 1002. When the screw rod moves to the left and right end positions of the arc-shaped opening 1002 respectively, the locking nut 901 can be tightened, thereby increasing the friction between the locking nut 901 and the locking handle 10, so that the screw rod cannot move inside the arc-shaped opening 1002;

[0027] A reducer 6 is fixed to the upper surface of the motor connecting plate 7, and the reducer 6 is connected to the rotating motor 4 through a coupling 5. The extended shaft of the reducer 6 is rotatably installed with an eccentric bearing 8, and a rotating bar 1001 rotatably connected to the locking handle 10 is provided below the bearing 8. The lower end of the linkage plate 902 is fixedly connected to the rotating bar 1001, and the rotation connection axis between the rotating bar 1001 and the locking handle 10 is consistent with the center position of the arc-shaped opening 1002. As known from the above structural arrangement, since the linkage plate 902 is limited by the arc-shaped opening 1002 and the rotating bar 1001, the linkage plate 902 rotates with the connection point between the rotating bar 1001 and the locking handle 10 as the rotation axis. When the linkage plate 902 drives the rotating bar 1001 to rotate, it will also drive the rotating bar 1001 to rotate in a circle.

[0028] A specific application of this embodiment is: through the above-mentioned setting, when it is necessary to control the sand belt body 2 to oscillate, the rotating motor 4 is controlled to be powered on, thereby the rotating motor 4 directly drives the upper roller 1 to rotate, driving the sand belt body 2 to start rolling, and at the same time the coupling 5 under the rotating motor 4 drives the reducer 6 to work, thereby making the reducer 6 extend the shaft and start to rotate, when the screw on the side wall of the linkage plate 902 is at the right end position of the arc-shaped opening 1002, the linkage plate 902 controls the rotating bar 1001 to rotate downward, so that the rotating bar 1001 is not in contact with the bearing 8. Therefore, the sanding belt body 2 does not have an oscillation function. When the screw on the side wall of the linkage plate 902 is driven by the connecting rod 9 to move to the left end position of the arc-shaped opening 1002, the linkage plate 902 will drive the rotating bar 1001 to rotate to connect with the peripheral position of the bearing 8. Then, after the bearing 8 rotates eccentrically, the linkage plate 902 cannot swing up and down. Therefore, under the action of force, the bearing 8 will drive the reducer 6 to move up and down, and thereby control the motor connecting plate 7 to drive the guide rail 14 to move back and forth up and down inside the guide sleeve 13, driving the sanding belt body 2 to move back and forth, thereby realizing the oscillation function of the sanding belt.

[0029] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A sanding belt oscillating mechanism, comprising a box (12), characterized in that: A workbench (11) is fixed on the upper surface of the box (12), a rotating motor (4) is arranged at the right position of the box (12), two symmetrically arranged rollers (1) are arranged above the left and right parts of the box (12), the rotating shaft end of the rotating motor (4) is fixedly connected to the adjacent rollers (1), a motor connecting plate (7) is arranged directly below the rotating motor (4), a guide sleeve (13) is arranged at a position between the motor connecting plate (7) and the box (12), a guide rail (14) slidably engaged with the guide sleeve (13) is fixed to the left side wall of the motor connecting plate (7), a connecting rod (9) is arranged in front of the motor connecting plate (7), a locking handle (10) is arranged in front of the connecting rod (9), and a sanding belt body (2) is arranged on the circumferential side sleeve between the two rollers (1).

2. The abrasive belt oscillating mechanism according to claim 1, characterized in that: A bracket (3) is arranged at a position inside the sanding belt body (2), and the side walls of the bracket (3) are located at the left and right side walls of the box body (12).

3. A sand belt oscillating mechanism according to claim 2, characterized in that: The roller (1) located on the left side wall of the box body (12) is rotatably mounted on the side wall of the bracket (3), the guide sleeve (13) is fixed on the side wall of the bracket (3), and the locking handle (10) is fixed on the side wall of the bracket (3).

4. The abrasive belt oscillating mechanism according to claim 1, characterized in that: A linkage plate (902) is fixed to the rear end of the connecting rod (9), an arc-shaped opening (1002) is opened on the upper part of the locking handle (10), a screw rod sliding in the inner position of the arc-shaped opening (1002) is fixed to the front side of the linkage plate (902), and a locking nut (901) is spirally sleeved on the circumference of the screw rod passing through the arc-shaped opening (1002).

5. The abrasive belt oscillating mechanism according to claim 4, characterized in that: A reducer (6) is fixed on the upper surface of the motor connecting plate (7), and the reducer (6) is connected to the rotating motor (4) via a coupling (5).

6. The abrasive belt oscillating mechanism according to claim 5, characterized in that: The extended shaft of the reducer (6) is rotatably mounted with an eccentric bearing (8), a rotating bar (1001) rotatably connected to the locking handle (10) is provided below the bearing (8), the lower end of the linkage plate (902) is fixedly connected to the rotating bar (1001), and the rotational connection axis between the rotating bar (1001) and the locking handle (10) is consistent with the center position of the arc-shaped opening (1002).

7. The abrasive belt oscillating mechanism according to claim 2, characterized in that: The bracket (3) is installed on the rear side wall of the box body (12) via a connecting frame (15).

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