A belt sander

Abstract

The utility model provides a kind of abrasive belt machine, it is related to abrasive belt machine technical field, including bottom plate, the top of bottom plate is equipped with shell, the inner wall side of shell is equipped with a pair of abrasive wheel assembly at equal intervals, the abrasive wheel assembly includes the isolating plate installed on the inner wall of shell, the isolating plate is equipped with big abrasive wheel fixed plate by screw, the sidewall of big abrasive wheel fixed plate is equipped with connecting plate by fixing piece, the sidewall of big abrasive wheel fixed plate is installed working shaft, big abrasive wheel is installed on the working shaft by rolling bearing two, the sidewall of connecting plate is equipped with support shaft, and the support shaft is equipped with auxiliary wheel, and this kind of abrasive belt machine overall design novel, simple structure, through air cylinder cooperation fixed guide rail on the installation of tension pulley, the convenient type adjustment of tightness can be carried out, so that the adaptability of this kind of abrasive belt machine overall is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of belt sander, and more specifically, it relates to a belt sander. Background Technology

[0002] Belt sanders are commonly used equipment for grinding and polishing. To improve the quality of grinding and polishing, some belt sanders on the market now feature a constant force control structure. Most existing belt sanders with constant force output function use cylinders or servo motors for constant force control.

[0003] Based on the above, the inventors have discovered the following problems: Most of the tensioning wheels inside current belt sanders are fixedly installed. As the equipment runs for a long time, the sanding belt inside is prone to loosening, which will cause the tension between the sanding belt and the tensioning wheel to change, making it impossible to ensure that the sanding belt and the tensioning wheel are in the best working condition.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings to provide a belt sander with greater practical value. Utility Model Content

[0005] The purpose and effect of this utility model of a belt sander are achieved by the following specific technical means: A belt sander includes a base plate, an outer casing mounted on top of the base plate, and a pair of grinding wheel assemblies equidistantly mounted on one side of the inner wall of the outer casing. Each grinding wheel assembly includes an isolation plate mounted on the inner wall of the outer casing, a large grinding wheel fixing plate mounted on the isolation plate by screws, a connecting plate mounted on the side wall of the large grinding wheel fixing plate by fasteners, a working shaft mounted on the side wall of the large grinding wheel fixing plate, a large grinding wheel mounted on the working shaft by a rolling bearing, and a support shaft mounted on the side wall of the connecting plate, with an auxiliary wheel fitted on the support shaft.

[0006] Furthermore, an output shaft is installed on the side of the isolation plate away from the large grinding wheel fixing plate, and a small grinding wheel is installed on the output shaft via a spline.

[0007] Furthermore, a control plate is installed above the small grinding wheel, an adjustment handle is installed on the surface of the control plate, a roller is installed on one side wall of the control plate, and a rolling bearing is fitted on the roller.

[0008] Furthermore, a fixed guide rail is installed above the large grinding wheel fixing plate, and a tensioning wheel is slidably installed on the fixed guide rail via a sliding seat. A cylinder is installed above the inclined fixed guide rail, and the output end of the cylinder is connected to the sliding seat on the fixed guide rail via a connector. The tensioning wheel, rolling bearing 1, small grinding wheel, large grinding wheel, and auxiliary wheel are connected by a sanding belt to form a transmission connection.

[0009] Furthermore, a protective shell is installed on the back of the outer casing, and a solenoid valve and a shut-off valve are respectively installed along one side of the outer casing.

[0010] Furthermore, a ventilation plate is provided through the side wall of the outer casing, and a lifting eye screw is installed above the ventilation plate. An observation door is installed on the side of the outer casing away from the ventilation plate via a door hinge, and a door handle is installed on the surface of the observation door.

[0011] Furthermore, the bottom of the outer casing is respectively equipped with a chip receiving groove and a chip discharge port. Compared with the prior art, the present invention has the following beneficial effects: This invention uses a fixed guide rail in conjunction with a cylinder and a tensioning wheel. When the sanding belt is loose, the cylinder can drive the tensioning wheel to move on the fixed guide rail. During the movement of the tensioning wheel, the tension of the sanding belt can be adjusted. Through the above operation, the tensioning wheel can always be in the optimal state. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall plan of a belt sander according to this utility model.

[0013] Figure 2 This is a side plan view of a belt sander according to the present invention.

[0014] Figure 3 This is a three-dimensional schematic diagram of a belt sander according to the present invention.

[0015] Figure 4 This is a schematic diagram of the left side of a belt sander according to this utility model.

[0016] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Base plate; 2. Chip collection groove; 3. Large grinding wheel fixing plate; 4. Working shaft; 5. Large grinding wheel; 6. Connecting plate; 7. Auxiliary wheel; 8. Lifting eye screw; 9. Outer shell; 10. Solenoid valve; 11. Shut-off valve; 12. Ventilation plate; 13. Chip discharge port; 14. Observation door; 15. Door handle; 16. Door hinge; 17. Protective shell; 18. Roller; 19. Rolling bearing one; 20. Control panel; 21. Adjusting handle; 22. Cylinder; 23. Sanding belt; 24. Fixed guide rail; 25. Tensioning wheel; 26. Isolation plate; 27. Support shaft; 28. Rolling bearing two; 29. ​​Screw; 30. Output shaft; 31. Splinter; 32. Small grinding wheel. Detailed Implementation

[0017] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0018] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0020] As attached Figure 1 To be continued Figure 4 As shown: This utility model provides a belt sander, including a base plate 1, an outer shell 9 mounted on the top of the base plate 1, a pair of grinding wheel assemblies equidistantly mounted on one side of the inner wall of the outer shell 9, the grinding wheel assembly including an isolation plate 26 mounted on the inner wall of the outer shell 9, a large grinding wheel fixing plate 3 mounted on the isolation plate 26 by screws 29, a connecting plate 6 mounted on the side wall of the large grinding wheel fixing plate 3 by fasteners, a working shaft 4 mounted on the side wall of the large grinding wheel fixing plate 3, a large grinding wheel 5 mounted on the working shaft 4 by rolling bearing 28, a support shaft 27 mounted on the side wall of the connecting plate 6, and an auxiliary wheel 7 fitted on the support shaft 27.

[0021] The isolation plate 26 has an output shaft 30 installed on the side away from the large grinding wheel fixing plate 3, and a small grinding wheel 32 is installed on the output shaft 30 via a spline 31.

[0022] A control plate 20 is installed above the small grinding wheel 32. An adjustment handle 21 is installed on the surface of the control plate 20. A roller 18 is installed on one side wall of the control plate 20, and a rolling bearing 19 is fitted on the roller 18.

[0023] A fixed guide rail 24 is installed above the large grinding wheel fixing plate 3. A tensioning wheel 25 is slidably mounted on the fixed guide rail 24 via a sliding seat. A cylinder 22 is installed above the fixed guide rail 24 at an incline. The output end of the cylinder 22 is connected to the sliding seat on the fixed guide rail 24 via a connector. The tensioning wheel 25, rolling bearing 19, small grinding wheel 32, large grinding wheel 5, and auxiliary wheel 7 are connected by a sanding belt 23. The fixed guide rail 24 works in conjunction with the cylinder 22 and the tensioning wheel 25. When the sanding belt 23 is loose, the cylinder 22 can drive the tensioning wheel 25 to move on the fixed guide rail 24. During the movement of the tensioning wheel 25, the tension of the sanding belt 23 can be adjusted. Through the above operation, the tensioning wheel 25 can always be in the optimal state.

[0024] The outer shell 9 has a protective shell 17 installed on its back side, and a solenoid valve 10 and a shut-off valve 11 are respectively installed along one side of the outer shell 9.

[0025] The outer casing 9 has a ventilation plate 12 extending through its side wall. A lifting eye screw 8 is installed above the ventilation plate 12. An observation door 14 is installed on the side of the outer casing 9 away from the ventilation plate 12 via a door hinge 16, and a door handle 15 is installed on the surface of the observation door 14.

[0026] The bottom of the outer shell 9 is equipped with a chip receiving groove 2 and a chip discharge port 13. The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A belt sander, comprising a base plate (1), characterized in that: A housing (9) is installed above the base plate (1). A pair of grinding wheel assemblies are installed at equal intervals on one side of the inner wall of the housing (9). The grinding wheel assembly includes an isolation plate (26) installed on the inner wall of the housing (9). A large grinding wheel fixing plate (3) is installed on the isolation plate (26) by screws (29). A connecting plate (6) is installed on the side wall of the large grinding wheel fixing plate (3) by fasteners. A working shaft (4) is installed on the side wall of the large grinding wheel fixing plate (3). A large grinding wheel (5) is installed on the working shaft (4) by rolling bearing two (28). A support shaft (27) is installed on the side wall of the connecting plate (6), and an auxiliary wheel (7) is fitted on the support shaft (27).

2. The belt sander as described in claim 1, characterized in that: The isolation plate (26) has an output shaft (30) mounted on the side away from the large grinding wheel fixing plate (3), and a small grinding wheel (32) is mounted on the output shaft (30) via a spline (31).

3. The belt sander as described in claim 2, characterized in that: A control plate (20) is installed above the small grinding wheel (32). An adjustment handle (21) is installed on the surface of the control plate (20). A roller (18) is installed on one side wall of the control plate (20), and a rolling bearing (19) is fitted on the roller (18).

4. The belt sander as described in claim 3, characterized in that: A fixed guide rail (24) is installed above the large grinding wheel fixing plate (3). A tension wheel (25) is slidably installed on the fixed guide rail (24) via a sliding seat. A cylinder (22) is installed above the fixed guide rail (24) at an incline. The output end of the cylinder (22) is connected to the sliding seat on the fixed guide rail (24) via a connector. The tension wheel (25), rolling bearing 1 (19), small grinding wheel (32), large grinding wheel (5) and auxiliary wheel (7) are connected by a sanding belt (23).

5. The belt sander as described in claim 4, characterized in that: A protective shell (17) is installed on the back of the outer shell (9), and a solenoid valve (10) and a shut-off valve (11) are respectively installed along one side of the outer shell (9).

6. The belt sander as described in claim 1, characterized in that: A ventilation plate (12) is provided through the side wall of the outer shell (9). A lifting eye screw (8) is installed above the ventilation plate (12). An observation door (14) is installed on the side of the outer shell (9) away from the ventilation plate (12) via a door hinge (16). A door handle (15) is installed on the surface of the observation door (14).

7. The belt sander as described in claim 1, characterized in that: The bottom of the outer shell (9) is respectively equipped with a chip receiving groove (2) and a chip discharge port (13).

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