Multifunctional belt sander

Abstract

A multifunctional belt sander comprises a machine base, a motor connected with the upper portion of the machine base and a supporting arm connected with a shell of the motor, a driving wheel is connected to an output shaft of the motor and arranged at one end of the supporting arm, a driven wheel corresponding to the driving wheel is arranged at the other end of the supporting arm, and the driven wheel is connected with the supporting arm through a driven shaft. The abrasive belt is arranged outside the driving wheel and the driven wheel in a sleeving mode, the machine base is a folding type suspended base, the motor is connected to a suspended table top of the machine base, and a hanging hole is formed in a bottom plate, used for being fixedly connected with a mounting platform or a wall, of the machine base. The structure of the base is optimized, so that the base can be placed on a horizontal desktop for use, can also be hung on a wall for use, is suitable for various working environments and materials, and has the advantages of portability, flexibility, high efficiency and stability.

Description

Technical Field

[0001] This application relates to the field of grinding equipment technology, and in particular to a multi-functional belt sander. Background Technology

[0002] As an important grinding tool, belt sanders are widely used for surface treatment of various materials such as metal, wood, and plastic.

[0003] In existing technologies, belt sanders generally use a fixed base with a non-adjustable frame. The base mainly houses the sanding belt, motor, drive wheel, driven wheel, and transmission device connecting the motor and drive wheel. This allows for basic grinding and polishing of handheld workpieces. With special additional components, the belt sander can perform high-precision grinding and polishing of fixed-position workpieces. In use, the machine is typically placed on a table, and the position of the sanding belt is rotated vertically and horizontally according to the grinding requirements to achieve fine grinding and polishing of the material. However, with the continuous advancement of industrial technology and the diversification of operational needs, the existing usage of belt sanders has gradually revealed some limitations. These limitations are mainly reflected in the following aspects: Firstly, placing the belt sander on a table occupies a significant amount of workspace, especially in environments with limited space, which can seriously affect the arrangement and operational efficiency of other equipment. Secondly, when the object to be ground is high or large, the ease of operation of a belt sander fixed on a table is limited, the processing range is narrow, and the operator may need to frequently bend or stretch, or may need to use other auxiliary workpieces, increasing the difficulty of operation and physical burden.

[0004] Therefore, there is an urgent need for a multi-functional belt sander that can meet the grinding needs in various situations. Utility Model Content

[0005] The purpose of this application is to provide a multi-functional belt sander to solve the problems of narrow processing range, inconvenient operation, and limited application scenarios in the existing technology.

[0006] The embodiments of this application can be implemented through the following technical solutions:

[0007] A multi-functional belt sander includes a base, a motor connected to the top of the base, and a support arm connected to the housing of the motor. A drive wheel is connected to the output shaft of the motor. The drive wheel is located at one end of the support arm. A driven wheel corresponding to the drive wheel is located at the other end of the support arm. The driven wheel is connected to the support arm through a driven shaft. The sanding belt is sleeved on the outside of the drive wheel and the driven wheel.

[0008] The base is a foldable suspended base, the motor is connected to the suspended platform of the base, and the base plate for fixed connection with the installation platform or wall is provided with hanging holes.

[0009] Furthermore, the number of base plates is two, and the two base plates are respectively disposed on two opposite sides of the machine base. At least one of the base plates is provided with two hanging holes, or each base plate is provided with at least one hanging hole.

[0010] Furthermore, the hanging hole is an open hole, with the opening of the hanging hole on one side of the base plate facing the opposite side of the base plate.

[0011] Furthermore, the support arm is connected to the motor housing via a rotating locking plate and the connection position is fixed by locking screws. The support arm is perpendicular to the output shaft of the motor and can rotate 90° around the output shaft of the motor.

[0012] Furthermore, the support arm is connected to a sanding auxiliary component for assisting the workpiece in grinding. One end of the sanding auxiliary component extends to the running plane of the sanding belt grinding surface, and the end of the sanding auxiliary component extending to the sanding belt grinding surface is an auxiliary platform or auxiliary rod.

[0013] Furthermore, the support arm includes a support member and a support arm frame and a support arm cover plate respectively installed on the two annular sides of the sanding belt. The support arm frame and the support arm cover plate are respectively provided with a first long groove and a second long groove on the side facing the sanding auxiliary component. One end of the support member is connected to the support arm frame or the support arm cover plate, and the other end extends to the back of the sanding surface of the sanding belt and is supported between the first long groove and the second long groove.

[0014] Furthermore, the support member is a 90° bent plate, the connection position of the support member relative to the support arm is adjustable in the direction toward or away from the inner ring of the sanding belt, and the auxiliary table surface of the support member is parallel to the running plane of the sanding belt.

[0015] Furthermore, one end of the support arm is connected to the housing of the motor via a rotating locking plate, and the other end extends into the annular area of ​​the sanding belt and is detachably connected to the support arm.

[0016] Furthermore, the driven wheel is connected to the support arm via a fine-tuning assembly, which includes an adjustment handle, a long shaft, a compression spring, and a short shaft. One end of the short shaft serves as the driven shaft and is connected to the driven wheel, while the other end is fixedly connected to the side of one end of the long shaft. The other end of the long shaft passes through a limiting shell provided on the support arm frame and is fixedly connected to the adjustment handle. The compression spring is sleeved on the outside of the long shaft and is compressed between the limiting shell and the end of the short shaft.

[0017] Furthermore, an adjustment plate is detachably connected to the support arm. The two sides of the adjustment plate are respectively connected to the support arm frame and the support arm cover plate. The running plane of the sanding belt passes through the adjustment plate and has gaps with the two sides of the adjustment plate.

[0018] The multi-functional belt sander provided in the embodiments of this application has at least the following beneficial effects:

[0019] This application optimizes the base structure, allowing it to be used on a horizontal table or wall-mounted. In addition, with the addition of a rotatable locking plate, the sanding belt can be rotated horizontally and vertically to adjust the grinding angle, making it suitable for various working environments and materials. It has the advantages of portability, flexibility, high efficiency and stability.

[0020] This application optimizes the support arm structure of the sanding belt by setting the support arm to have two long grooves and a support component under the sanding belt grinding surface, so that the sanding belt can perform both rigid and flexible grinding, thereby meeting the requirements of the sanding belt to grind and polish workpieces of various shapes, such as flat surfaces and arc surfaces. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a multi-functional belt sander according to this application;

[0022] Figure 2 This is a schematic diagram showing the disassembled state of a multifunctional belt sander according to this application;

[0023] Figure 3 This is a schematic diagram of a wall-mounted method for fixing a multifunctional belt sander to the wall according to this application;

[0024] Figure 4 This is a schematic diagram of another wall-mounted method for fixing a multi-functional belt sander to the wall, as described in this application;

[0025] Figure 5 This is a partial perspective view of the fine-tuning component of a multi-functional belt sander of this application, which is connected to the driven wheel.

[0026] Numbers in the diagram

[0027] 1-Base; 11-Tabletop; 12-Base plate; 13-Hanging hole; 2-Motor; 3-Drive wheel; 4-Driven wheel; 5-Support arm; 51-Support arm frame; 511-First long groove; 512-Limiting shell; 52-Support arm cover plate; 521-Second long groove; 53-Bolt; 54-Support component; 6-Sand belt; 7-Fine adjustment component; 71-Adjusting handle; 72-Long shaft; 73-Compression spring; 74-Short shaft; 8-Sanding auxiliary component; 9-Rotating locking plate; 10-Adjusting plate. Detailed Implementation

[0028] The present application will now be further described based on preferred embodiments and with reference to the accompanying drawings.

[0029] Furthermore, for ease of understanding, various components on the drawings have been enlarged or reduced, but this is not intended to limit the scope of protection of this application.

[0030] Singular forms of words also include plural meanings, and vice versa.

[0031] In the description of the embodiments of this application, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to 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 this application is in use, they are only for the convenience of describing this application 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 on this application. In addition, in the description of this application, in order to distinguish different units, the terms "first," "second," etc. are used in this specification, but these are not limited by the manufacturing order, nor should they be construed as indicating or implying relative importance. Their names may differ in the detailed description and claims of this application.

[0032] The vocabulary used in this specification is for illustrative purposes and is not intended to limit the scope of this application. It should also be noted that, unless otherwise expressly specified and limited, the terms "set," "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, a direct connection, or an indirect connection via an intermediate medium; or they can refer to the internal communication between two components. Those skilled in the art will understand the specific meaning of these terms in this application.

[0033] like Figure 1 , Figure 2 As shown, a multi-functional belt sander includes a base 1, a motor 2 connected to the base 1, and a support arm 5 connected to the housing of the motor 2. A drive wheel 3 is connected to the output shaft of the motor 2. The drive wheel 3 is located at one end of the support arm 5, and a driven wheel 4 corresponding to the drive wheel 3 is located at the other end of the support arm 5. The driven wheel 4 is connected to the support arm 5 through a driven shaft. A sanding belt 6 is sleeved on the outside of the drive wheel 3 and the driven wheel 4, so that when the output shaft of the motor 2 drives the drive wheel 3 to rotate, the sanding belt 6 can rotate under the drive of the drive wheel 3 to perform sanding.

[0034] In some preferred embodiments, the base 1 is a foldable suspended base, the motor 2 is connected to the suspended platform 11 of the base 1, and the base 1 has a hanging hole 13 on the base plate 12 for fixed connection with the platform or the wall, so that the base 1 can be fixed to a horizontal platform through the base plate 12 or to a vertical wall through the hanging hole 13.

[0035] In some preferred embodiments, the base 1 is an integral structure, that is, the base 1 is formed by first folding down 90° on both sides of a whole sheet of material to form an L-shaped structure, and then folding down the bottom surfaces of the two folded-down sides to form a base plate 12, so that the base plate 12 is in close contact with the table or tabletop, providing a stable support for the base 1.

[0036] In some preferred embodiments, two base plates 12 are provided, and the two base plates 12 are respectively provided on two opposite sides of the base 1. The two base plates 12 provided on opposite sides can effectively increase the stability of the installation.

[0037] In some preferred embodiments, at least one of the base plates 12 is provided with two hanging holes 13, or each base plate 12 is provided with at least one hanging hole 13, so that when the operator fixes the base 1 to the wall, he can select two hanging holes 13 on the same base plate 12 to hang the belt sander horizontally, such as... Figure 3 As shown, alternatively, the belt sander can be placed vertically by selecting hanging holes 13 on the two base plates 12, such as... Figure 4 As shown, the above settings increase the diversity of wall-mounted options and provide reliability for various sanding needs.

[0038] In some preferred embodiments, the hanging hole 13 is an open hole, and the opening of the hanging hole 13 on one side of the base plate 12 is set to face the opposite side of the base plate 12, so as to increase the convenience of wall-mounted installation.

[0039] In some preferred embodiments, the support arm 5 is connected to the housing of the motor 2 via a rotating locking plate 9, and the connection position is fixed by locking screws, so that the support arm 5 is perpendicular to the output shaft of the motor 2 and can rotate 90° around the output shaft of the motor 2 to meet the needs of horizontal and vertical grinding.

[0040] In some preferred embodiments, to meet both the flexible grinding requirements of complex shapes and the rigid grinding requirements of simple shapes, the applicant optimized the structure of the support arm 5, such as... Figure 2As shown, the support arm 5 is connected to a sanding auxiliary component 8 for assisting the workpiece in grinding. One end of the sanding auxiliary component 8 extends to the running plane of the sanding surface of the sanding belt 6. The end of the sanding auxiliary component 8 extending to the sanding surface of the sanding belt 6 is an auxiliary platform or an auxiliary rod. Preferably, the connection position of the sanding auxiliary component 8 relative to the support arm 5 is adjustable, so that the distance between the auxiliary platform or auxiliary rod of the sanding auxiliary component 8 and the sanding surface of the sanding belt can be adjusted according to the grinding requirements.

[0041] In some preferred embodiments, the support arm 5 includes a support arm frame 51, a support arm cover plate 52, bolts 53, and a support member 54. The support arm frame 51 and the support arm cover plate 52 are respectively installed on the two annular sides of the sanding belt 6. The support arm frame 51 and the support arm cover plate 52 have a first long groove 511 and a second long groove 521 respectively on the side facing the sanding auxiliary component 8. One end of the support member 54 is connected to the support arm frame 51 or the support arm cover plate 52, and the other end extends to the back of the sanding surface of the sanding belt 6 and is supported by the first long groove 511 and the second long groove 521. During grinding, since the auxiliary table of the support member 54 is supported on the back (inner ring) of the grinding surface of the sanding belt 6, the auxiliary table of the support member 54 will provide rigid support for the workpiece being ground during grinding. When flexible grinding is required, the support member 54 can be removed. At this time, the sanding belt 6 between the driving wheel 3 and the driven wheel 4 has no rigid support structure. When the workpiece is placed on the grinding surface of the sanding belt 6 for grinding, the part of the sanding belt 6 that is grinding the workpiece will be concave at the two long grooves under the action of force. The operator can adjust the downward pressure and angle during grinding according to the grinding requirements.

[0042] In some preferred embodiments, the support member 54 is a 90° bent plate. The connection position of the support member 54 relative to the support arm 5 is adjustable in the direction toward or away from the inner circle of the sanding belt 6. During the adjustment process, it is necessary to keep the auxiliary table surface of the support member 54 parallel to the running plane of the sanding belt 6, which helps to ensure that the sanding belt 6 can evenly contact the workpiece surface during sanding and avoids uneven sanding marks.

[0043] In some preferred embodiments, one end of the support arm 51 is connected to the housing of the motor 2 via a rotating locking plate 9, and the other side is provided with an internally threaded joint extending into the annular area of ​​the sanding belt 6. The support arm 51 is connected to the support arm cover plate 52 by bolts 53, so that when the sanding belt needs to be replaced, the support arm cover plate 52 can be removed and the sanding belt replaced simply by removing the bolts 53.

[0044] In some preferred embodiments, to facilitate the assembly and disassembly of the sanding belt 6, the driven wheel 4 is connected to the support arm 5 via a fine-tuning assembly 7, such as... Figure 2 , Figure 5 As shown, the fine-tuning component 7 includes an adjustment handle 71, a long shaft 72, a compression spring 73, and a short shaft 74. One end of the short shaft 74 serves as a driven shaft and is connected to the driven wheel 4, while the other end is fixedly connected to the side of one end of the long shaft 72. The other end of the long shaft 72 passes through the limiting shell 512 provided on the support arm 51 and is fixedly connected to the adjustment handle 71. The compression spring 73 is sleeved on the outside of the long shaft 72 and is compressed between the limiting shell 512 and the end of the short shaft 74. When the adjustment handle 71 is rotated, the long shaft 72 will rotate. Since the short shaft 74 is connected to the side of the end of the long shaft 72, it will cause the short shaft 74 to move circumferentially along the long shaft 72, thereby changing the distance between the driven wheel 4 connected on the short shaft 74 and the driving wheel 3. At this time, the sanding belt 6 can be disassembled and assembled, and the tension of the sanding belt 6 can also be adjusted.

[0045] An adjusting plate 10 is detachably connected to the support arm 5. The two sides of the adjusting plate 10 are connected to the support arm frame 51 and the support arm cover plate 52, respectively. The running plane of the sanding belt 6 passes through the adjusting plate 10 and has gaps with the two sides of the adjusting plate 10. The adjusting plate 10 is used to ensure that the sanding belt 6 always runs on a predetermined track. When the sanding belt 6 deviates, the side of the adjusting plate 10 will contact the rotating sanding belt 6 to correct the position of the sanding belt 6.

[0046] The specific embodiments of this application have been described in detail above. For those skilled in the art, several improvements and modifications can be made to this application without departing from the principle of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A multifunctional belt sander, characterized in that: it comprises a base (1), a motor (2) connected above the base (1), a supporting arm (5) connected with the shell of the motor (2), a driving wheel (3) connected on the output shaft of the motor (2), the driving wheel (3) being arranged at one end of the supporting arm (5), the other end of the supporting arm (5) being provided with a driven wheel (4) corresponding to the driving wheel (3), the driven wheel (4) being connected with the supporting arm (5) through a driven shaft, and a belt (6) being sleeved outside the driving wheel (3) and the driven wheel (4). The base (1) is a folding overhanging base, the motor (2) is connected to the overhanging table top (11) of the base (1), and the base (1) is provided with a hanging hole (13) on the bottom plate (12) for fixed connection with the installation platform or wall.

2. The multifunctional belt sander according to claim 1, characterized in that: the number of the bottom plates (12) is two, and the two bottom plates (12) are arranged on the two opposite sides of the base (1), and at least one of the bottom plates (12) is provided with two hanging holes (13) or each bottom plate (12) is provided with at least one hanging hole (13).

3. The multifunctional belt sander according to claim 1, characterized in that: the hanging hole (13) is an open hole, and the opening of the hanging hole (13) on the bottom plate (12) on one side faces the bottom plate (12) on the opposite side.

4. The multifunctional belt sander according to claim 1, characterized in that: the supporting arm (5) is connected with the shell of the motor (2) through a rotating locking plate (9) and is fixedly connected in position through a locking screw, the supporting arm (5) is perpendicular to the output shaft of the motor (2) and can rotate 90° around the output shaft of the motor (2).

5. The multifunctional belt sander according to claim 1, characterized in that: the supporting arm (5) is connected with a sanding auxiliary part (8) for assisting the workpiece in polishing, one end of the sanding auxiliary part (8) extends to the running plane of the polishing surface of the belt (6), and the end of the sanding auxiliary part (8) extending to the polishing surface of the belt (6) is an auxiliary platform or an auxiliary rod.

6. The multifunctional belt sander according to claim 1, characterized in that: the supporting arm (5) comprises a supporting part (54), a supporting arm frame (51) and a supporting arm cover plate (52) respectively arranged on the two annular side edges of the belt (6), the supporting arm frame (51) and the supporting arm cover plate (52) are respectively provided with a first long groove (511) and a second long groove (521) on the side facing the sanding auxiliary part (8), one end of the supporting part (54) is connected with the supporting arm frame (51) or the supporting arm cover plate (52), the other end extends to the back of the polishing surface of the belt (6) and is supported between the first long groove (511) and the second long groove (521).

7. The multifunctional belt sander according to claim 6, characterized in that: ​ ​ ​ ​ ​ ​ The support piece (54) is a 90° bent plate, which is adjustable in the direction towards or away from the inner ring of the abrasive belt (6) relative to the connecting position of the support arm (5), and the auxiliary platform of the support piece (54) is parallel to the running plane of the abrasive belt (6).

8. The multifunctional abrasive belt sander according to claim 6, characterized in that: The end of the support arm frame (51) on one side is connected with the shell of the motor (2) through a rotating locking plate (9), and the other side extends into the annular area of the abrasive belt (6) and is detachably connected with the support arm frame (51).

9. The multifunctional abrasive belt sander according to claim 6, characterized in that: The driven wheel (4) is connected with the support arm (5) through a fine adjustment assembly (7), which comprises an adjusting handle (71), a long shaft (72), a compression spring (73) and a short shaft (74), one end of the short shaft (74) is connected with the driven wheel (4) as a driven shaft, the other end is fixedly connected with the side surface of one end of the long shaft (72), the other end of the long shaft (72) penetrates through a limiting shell (512) provided on the support arm frame (51) and is fixedly connected with the adjusting handle (71), the compression spring (73) is sleeved outside the long shaft (72) and is compressed between the limiting shell (512) and the end of the short shaft (74).

10. The multifunctional abrasive belt sander according to claim 6, characterized in that: The support arm (5) is detachably connected with a deflection adjusting plate (10), the two sides of the deflection adjusting plate (10) are connected with the support arm frame (51) and the support arm cover plate (52) respectively, the running plane of the abrasive belt (6) penetrates through the deflection adjusting plate (10) and has a gap with the two sides of the deflection adjusting plate (10).

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