Novel abrasive belt deviation rectifying mechanism

Abstract

The novel abrasive belt deviation rectifying mechanism comprises a driving wheel, a deviation rectifying wheel, a mounting base and a mounting frame, a main shaft is rotationally arranged on the mounting base, the driving wheel is fixedly mounted on the first main shaft, the center of the driving wheel and the axis of the main shaft are located on the same straight line, and the mounting frame is located on one side of the driving wheel and fixedly connected with the mounting base; a fixing block is fixed on the mounting frame, a fixing shaft is arranged between the fixing block and the driving wheel, the fixing shaft is parallel to the main shaft, the deviation rectifying wheel is rotationally connected with the fixing shaft, connecting blocks are arranged at the two ends of the fixing shaft, the two connecting blocks are movably connected with the mounting frame, and a screw rod is rotationally arranged on the fixing block; a threaded hole is formed in one side of the connecting block located at the top end of the fixing shaft, the threaded rod penetrates into the threaded hole to be in threaded connection with the connecting block, the connecting block moves in the direction close to the driving wheel or away from the driving wheel by rotating the threaded rod, the position of the driving wheel is finely adjusted, accordingly, the circumference deviation of the abrasive belt is compensated, and deviation of the abrasive belt is avoided.

Description

Technical Field

[0001] The present application relates to the field of grinding technology, and more specifically, to a novel abrasive belt deviation correction mechanism. Background Art

[0002] In the sheet metal industry, abrasive belts are often used to polish the surface of the sheet metal to achieve a smoother and more aesthetically pleasing finish. Wide-belt sanders often use belts with varying ends, which can cause them to deviate toward the smaller end when installed. This requires a mechanism to correct the initial deviation of the new belt. While a new belt can be used normally after initial positioning, uneven wear and elongation of the backing can cause the belt's trajectory to change, requiring correction. Utility Model Content

[0003] In order to solve the problems of initial deviation of the sanding belt of the current sanding belt sander and the sanding belt going off track during use, the present application provides a new sanding belt deviation correction mechanism.

[0004] The driving member is a chain which has a first end fixed to the side panel that is located close to the first gear and a second end of the driving member is engaged with the first and second gears and the transmission gear and is then connected with the spring which is fixed to the side panel that is located close to the first gear.

[0005] By adopting the above technical solution, the sanding belt is put onto the driving wheel and the correction wheel, and the main shaft is driven to rotate by the external driving mechanism to drive the driving wheel to rotate, so that the sanding belt can be rotated to grind the workpiece. The rotating bolt moves the mounting block toward or away from the driving wheel to achieve fine adjustment of the driving wheel position, thereby compensating for the deviation of the sanding belt circumference and avoiding the deviation of the sanding belt. This structure is applicable to positioning when installing a new sanding belt and after the sanding belt is worn during use.

[0006] Preferably, the mounting frame includes a support frame body and two mounting plate bodies fixed on the support frame body, the support frame body is fixedly connected to the mounting seat, the two mounting plate bodies are symmetrically arranged in the upper and lower parts, the fixing block is fixed to the top surface of the mounting plate body at the top, the two mounting plate bodies are both provided with movable holes, the fixing shaft is located between the two mounting plate bodies, and the two connecting blocks are both arranged in a "T" shape and are respectively inserted into the movable holes provided in the two mounting plate bodies for movement, and one connecting block abuts the top surface of the mounting plate body at the top, and the other connecting block abuts the bottom surface of the mounting plate body at the bottom.

[0007] By adopting the above technical solution, the correcting wheel is located between the two mounting plates, and the fixed block is located on the top surface of the mounting plate located above, so that the correcting wheel and the fixed block are offset up and down, which is convenient for people to have a safe space when rotating the bolts by hand, making it safer to rotate the bolts by hand during the operation of the sanding belt, and there is no need to stop the machine for correcting the deviation of the sanding belt, so that the staff can observe the running trajectory of the sanding belt in real time and adjust the sanding belt correction more efficiently.

[0008] The cam body is provided with a sliding shaft, and the sliding shaft is installed in the cam body and the sliding shaft is connected with the sliding shaft by the sliding shaft.

[0009] The sanding belt is tensioned by the elastic force of the spring to achieve fixed installation and adaptability to sanding belts of different sizes. By pushing the moving plate toward the static plate, the distance between the correcting wheel and the driving wheel is shortened, making sanding belt replacement more convenient.

[0010] Preferably, the two mounting plates are provided with connecting pieces on one side close to the static plate body, and the static plate body is provided with a slot that penetrates its own thickness on one side, the two connecting pieces are inserted into the slots, and the parts of the two connecting pieces in the slots are provided with an internal groove that penetrates themselves, and the static plate body is provided with a rotating shaft that rotates in the slot, the rotating shaft is parallel to the main shaft and passes through the internal grooves opened by the two connecting pieces, and the top end of the rotating shaft penetrates the top of the static plate body, the rotating shaft is fixed with two eccentric wheels, and the two eccentric wheels are respectively located in the two internal grooves, and the eccentric wheels are driven to rotate by the rotation of the rotating shaft, and the rotation of the eccentric wheel presses the side wall of the internal groove away from the movable plate body to move the connecting piece toward the direction close to the driving wheel, and the top end of the rotating shaft is provided with a wrench.

[0011] The rotating shaft can be easily rotated by a wrench, and the rotating shaft is rotated to press the eccentric wheel against the inner groove away from the side wall of the movable plate body, so that the connecting piece moves toward the direction close to the driving wheel, thereby driving the correcting wheel to move toward the driving wheel, and supported by the eccentric wheel, the spring does not easily drive the movable plate body and the driving wheel to reset, so that when installing the sanding belt, there is no need to apply pressure to the movable plate body at all times, which is conducive to freeing both hands to install the sanding belt, making the installation of the sanding wheel more convenient, and it is reset by turning the wrench, and the plate body and the driving wheel are reset to tension the sanding belt through the elastic force of the spring.

[0012] Preferably, the correcting wheel includes a correcting wheel body and two limiting rings respectively fixed on the upper and lower sides of the correcting wheel body, the center of the limiting ring and the center of the correcting wheel are on the same straight line, and the two limiting rings both protrude from the outside of the correcting wheel body.

[0013] The sanding belt is limited by two limiting rings, so that the sanding belt is not easily deviated up and down during operation.

[0014] In summary, this application includes at least one of the following beneficial technical effects:

[0015] 1. Put the abrasive belt onto the driving wheel and the deviation-correcting wheel. Drive the main shaft to rotate through the external driving mechanism to drive the driving wheel to rotate, so that the abrasive belt can be rotated to grind the workpiece. Rotate the bolt to move the mounting block toward or away from the driving wheel to fine-tune the position of the driving wheel, thereby compensating for the deviation of the abrasive belt circumference and preventing the abrasive belt from deviating. This structure is applicable to positioning when installing a new abrasive belt and after the abrasive belt is worn during use.

[0016] 2. The sanding belt is tensioned by the elastic force of the spring to achieve fixed installation of the sanding belt and adapt to sanding belts of different sizes. By pushing the moving plate toward the static plate, the distance between the correction wheel and the driving wheel is shortened, making the sanding belt replacement more convenient.

[0017] 3. The rotating shaft can be easily rotated by a wrench. The rotating shaft is rotated to press the eccentric wheel against the inner groove away from the side wall of the movable plate body, so that the connecting piece moves toward the driving wheel, thereby driving the deviation correction wheel to move toward the driving wheel. The eccentric wheel is supported, and the spring does not easily drive the movable plate body and the driving wheel to reset. When installing the sanding belt, there is no need to apply pressure to the movable plate body at all times, which is conducive to freeing both hands to install the sanding belt and making the installation of the grinding wheel more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a new type of abrasive belt correction mechanism in this embodiment.

[0019] Figure 2 This is an exploded view of the connection structure between the mounting bracket and the correcting wheel in this embodiment.

[0020] Figure 3 This is an overall schematic diagram of the connection between the mounting bracket and the deviation-correcting wheel of this embodiment.

[0021] Figure numerals: 1, driving wheel; 2, correcting wheel; 21, correcting wheel body; 22, limiting ring; 3, mounting seat; 31, main shaft; 4, mounting frame; 41, supporting frame; 411, stationary plate; 4111, shaft sleeve; 4112, first groove; 4113, slot; 4114, rotating shaft; 4115, eccentric wheel; 4116, wrench; 412, movable plate; 4121, sliding shaft; 4122, second groove; 42, mounting plate; 421, fixing block; 4211, screw; 422, movable hole; 423, connecting piece; 4231, internal groove; 43, spring; 44, fixing shaft; 441, connecting block; 4411, threaded hole; DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0023] Reference Figure 1 A new type of grinding wheel correction mechanism includes a driving wheel 1, a correction wheel 2, a mounting seat 3, and a mounting frame 4. A main shaft 31 is rotatably provided on the mounting seat 3, and the main shaft 31 passes through the top and bottom surfaces of the mounting seat 3. The driving wheel 1 and the main shaft 31 are fixedly mounted on the main shaft 31 and are located above the top surface of the mounting seat 3. The center of the driving wheel 1 is in the same straight line as the axis of the main shaft 31. The driving wheel 1 is driven to rotate by installing the mounting seat 3 on an external fixing frame and connecting it to the bottom end of the main shaft 31 through an external driving mechanism.

[0024] Reference Figure 2 The mounting frame 4 includes a support frame body 41 and two mounting plate bodies 42. The support frame body 41 includes a static plate body 411 and a dynamic plate body 412. The static plate body 411 is located on one side of the driving wheel 1 and is fixed to the top surface of the mounting seat 3. The dynamic plate body 412 is located on the side of the static plate body 411 away from the driving wheel 1 and is parallel to the static plate body 411. The dynamic plate body 412 is close to the four corners of the side of the static plate body 411. The four corners of the side of the static plate body 411 are opened due to the penetration of its body. The openings are fixed with a sleeve 4111 matching the sliding shaft 4121 in each opening, and each sliding shaft 4121 is correspondingly inserted into a sleeve 4111 and slidably connected with the sleeve 4111, so that the movable plate body 412 is supported by the sliding of the static plate body 411. A spring 43 is provided between the static plate body 411 and the movable plate body 412. There are four springs 43. The specific installation method of the spring 43 is as follows: a first groove 4112 is provided on a side of the static plate body 411 close to the movable plate body 412. The first grooves 4112 are four in number, and the four first grooves 4112 are divided into two groups, and the number of each first groove 4112 is two. The two groups of first grooves 4112 are respectively arranged on both sides of the static plate body 411, and the two first grooves 4112 of each group are arranged up and down. The movable plate body 412 is provided with a second groove 4122 (not shown in the figure) on a side surface close to the static plate body 411. The number of second grooves 4122 is four, and the four second grooves 4122 are divided into two groups, and the number of each second groove 4122 is two. The two groups of second grooves 4122 are respectively arranged on both sides of the movable plate body 412, and the two second grooves 4122 of each group are arranged up and down. Each first groove 4112 has a second groove 4122 aligned with it, and each spring 43 corresponds to a first groove 4112 and a second groove 4122. One end of the spring 43 is inserted into the first groove 4112, and the other end is inserted into the second groove 4122, so that the spring 43 is supported and limited and not easy to fall off.

[0025] Reference Figure 2, the two mounting plates 42 are respectively fixedly mounted on the upper and lower side surfaces of the movable plate body 412 and extend in the direction away from the static plate body 411. The two mounting plate bodies 42 are symmetrically arranged up and down. A fixing block 421 is fixed on the top surface of the upper mounting plate body 42. The two mounting plates are provided with movable holes 422 running through them at the position between the fixing block 421 and the movable plate body 412. A fixed shaft 44 is provided between the two mounting plates. Connecting blocks 441 are provided at both ends of the fixed shaft 44. The two connecting blocks 441 are both arranged in a "T" shape, and the two connecting blocks 441 are respectively inserted into the movable holes 422 provided on the two mounting plate bodies 42 for movement. The top of one connecting block 441 abuts against the top surface of the mounting plate 42 above, and the other connecting block 441 abuts against the bottom surface of the mounting plate 42 below, so that the two mounting plates 42 can support the fixed shaft 44 movably. The correcting wheel 2 is rotatably connected to the fixed shaft 44, and the correcting wheel 2 is located between the two mounting plates 42 and is on the same horizontal plane as the driving wheel 1. The size of the correcting wheel 2 is smaller than that of the driving wheel 1. The fixing block 421 is rotatably provided with a screw 4211, and a threaded hole 4411 is provided on one side of the connecting block 441 at the top of the fixed shaft 44. The screw 4211 penetrates into the threaded hole 4411 and is threadedly connected to the connecting block 441.

[0026] Reference Figure 1 and Figure 2 When in use, by pushing the movable plate body 412 toward the static plate body 411, the spring 43 is compressed, so that the distance between the correcting wheel 2 and the driving wheel 1 is reduced, and the sanding belt is put on the correcting wheel 2 and the driving wheel 1, and the pressure on the movable plate body 412 is released, the movable plate body 412 is reset by the elastic force of the spring 43, and the correcting wheel 2 tightens the sanding belt to realize the installation of the sanding belt, and the sanding belt is easy to replace. The main shaft 31 is driven to rotate by the external driving mechanism, which drives the driving wheel 1 to rotate. The driving wheel 1 rotates to realize the driving belt operation to grind the workpiece, and the connecting block 441 is moved closer to the driving wheel 1 or away from the driving wheel by rotating the screw 4211. The movement in the direction of 1 drives the fixed shaft 44 and the correcting wheel 2 to move toward or away from the driving wheel 1, so as to fine-tune the position of the correcting wheel 2, compensate for the deviation of the circumference of the sanding belt, and prevent the sanding belt from deviating. The correcting wheel 2 is located between the two mounting plates 42, and the fixed block 421 is located on the top surface of the mounting plate 42 located above, so that the correcting wheel 2 and the fixed block 421 are misaligned up and down, which is convenient for the human hand to have a safe space when rotating the bolt, making it safer to rotate the bolt by hand during the operation of the sanding belt, and realizing the sanding belt correction without stopping, so that the staff can observe the sanding belt running trajectory in real time and adjust the sanding belt correction efficiency more quickly.

[0027] Reference Figure 2 and Figure 3Furthermore, a connecting piece 423 is provided on one side of the two mounting plates 42 close to the static plate body 411, and a slot 4113 is opened on one side of the static plate body 411, which penetrates its own thickness. The two connecting pieces 423 are inserted into the slot 4113, and the parts of the two connecting pieces 423 in the slot 4113 are opened with an internal groove 4231 which penetrates itself. The static plate body 411 is rotated in the slot 4113 and is provided with a rotating shaft 4114. The rotating shaft 4114 is parallel to the main shaft 31 and penetrates into the internal groove 4231 opened by the two connecting pieces 423, and the top of the rotating shaft 4114 penetrates the top of the static plate body 411, and the rotating shaft 4114 is fixed with two eccentric wheels 4115, which are respectively located in the two internal grooves 4231. The rotation of the rotating shaft 4114 drives the eccentric wheels 4115 to rotate, and the eccentric wheels 4115 rotate to press the internal grooves. The connecting groove 4231 is away from the side wall of the movable plate body 412, so that the connecting piece 423 moves in the direction close to the driving wheel 1. A wrench 4116 is provided at the top of the rotating shaft 4114, which is convenient for rotating the rotating shaft 4114. The rotating shaft 4114 is rotated to make the eccentric wheel 4115 press the inner connecting groove 4231 away from the side wall of the movable plate body 412, so that the connecting piece 423 moves in the direction close to the driving wheel 1, thereby driving the correcting wheel 2 to move in the direction close to the driving wheel 1 and supported by the eccentric wheel 4115. The spring 43 does not easily drive the movable plate body 412 and the driving wheel 1 to reset, so that when installing the sanding belt, there is no need to apply pressure on the movable plate body 412 at all times, which is conducive to freeing both hands to install the sanding belt, making the installation of the sanding wheel more convenient. By toggling the wrench 4116 to reset, the plate body and the driving wheel 1 are reset and the sanding belt is tensioned by the elastic force of the spring 43.

[0028] Reference Figure 2 Furthermore, the correcting wheel 2 includes a correcting wheel body 21 and two limiting rings 22 fixed on the upper and lower sides of the correcting wheel body 21 respectively. The center of the limiting ring 22 is on the same straight line as the center of the correcting wheel 2. The two limiting rings 22 protrude from the outside of the correcting wheel body 21. The sanding belt is limited by the two limiting rings 22, so that the sanding belt is not easily deviated up and down during operation.

[0029] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A new type of abrasive belt correction mechanism, characterized by: The cam is fixedly mounted on the drive shaft and the drive shaft is pivotally connected to the drive shaft by a threaded hole, and the cam is fixedly mounted on the drive shaft to rotate with the cam.

2. A novel abrasive belt correction mechanism according to claim 1, characterized in that: The mounting frame includes a support frame body and two mounting plate bodies fixed on the support frame body, the support frame body is fixedly connected to the mounting seat, the two mounting plate bodies are symmetrically arranged in the upper and lower parts, the fixing block is fixed to the top surface of the mounting plate body at the top, the two mounting plate bodies are both provided with movable holes, the fixing shaft is located between the two mounting plate bodies, and the two connecting blocks are both arranged in a "T" shape and are respectively inserted into the movable holes provided in the two mounting plate bodies for movement, and one connecting block abuts the top surface of the mounting plate body at the top, and the other connecting block abuts the bottom surface of the mounting plate body at the bottom.

3. A novel abrasive belt correction mechanism according to claim 2, characterized in that: The cam body has a first end fixedly mounted on the support frame, and the second end of the second end is fixedly mounted on the support frame, the second end of the second end of the second moving member is installed in a direction away from the support frame, and the cam body has a second end fixedly mounted on the support frame.

4. A novel abrasive belt deviation correction mechanism according to claim 3, characterized in that: The two mounting plates are each provided with a connecting piece on one side close to the static plate body, and a slot is opened on one side of the static plate body that penetrates its own thickness, and the two connecting pieces are both inserted into the slots, and the parts of the two connecting pieces in the slots are each provided with an internal connecting slot that penetrates itself, and the static plate body is provided with a rotating shaft that rotates in the slot, and the rotating shaft is parallel to the main shaft and penetrates the internal connecting slots opened by the two connecting pieces, and the top end of the rotating shaft penetrates the top of the static plate body, and the rotating shaft is fixed with two eccentric wheels, and the two eccentric wheels are respectively located in the two internal connecting slots, and the eccentric wheels are driven to rotate by the rotation of the rotating shaft, and the rotation of the eccentric wheel presses the side wall of the internal connecting slot away from the movable plate body to move the connecting piece toward the direction close to the driving wheel, and a wrench is provided at the top end of the rotating shaft.

5. The novel abrasive belt deviation correction mechanism according to claim 3 is characterized in that: The correcting wheel includes a correcting wheel body and two limiting rings respectively fixed on the upper and lower sides of the correcting wheel body. The center of the limiting ring is on the same straight line as the center of the correcting wheel. Both limiting rings protrude from the outside of the correcting wheel body.

Images