Abrasive belt swinging device

Abstract

An abrasive belt swing device comprises a driving part, an abrasive belt guide wheel, an adjusting lever, a lever support, an adjusting screw, an ejector rod and a support, the abrasive belt guide wheel is tightly attached to an abrasive belt, the adjusting screw abuts against the ejector rod, the ejector rod can stretch out or retract from the support, one end of the abrasive belt guide wheel abuts against the ejector rod, the other end of the abrasive belt guide wheel is fixed, and the lever support is connected with the adjusting lever through a rotating shaft. The adjusting lever is provided with a first end and a second end which are located on the two sides of the rotating shaft respectively, the first end is connected with the driving piece, the second end is connected with the adjusting screw, the driving piece can drive the adjusting lever to rotate back and forth around the rotating shaft, and the second end of the adjusting lever can rotate back and forth to drive the adjusting screw to ascend and descend. The adjusting screw ascends and descends to drive the ejector rod to ascend and descend, so that the ejector rod can drive one end of the abrasive belt guide wheel to ascend and descend, a roller of the abrasive belt guide wheel can make pitching angle movement on the plane tightly attached to the abrasive belt so as to pull the abrasive belt to swing, and the device has the advantages of being simple in structure, even in grinding and high in grinding quality.

Description

Technical Field

[0001] The invention relates to the technical field of abrasive belts, and in particular to an abrasive belt swinging device. Background Art

[0002] A sanding belt machine is a common metal and non-metal material processing equipment, mainly used for material grinding. It works based on the grinding principle of the sanding belt, and realizes grinding and trimming of the workpiece through the high-speed rotation of the sanding belt. During grinding, the motor is mainly used to drive the driving wheel and the driven wheel to make the sanding belt on the driving wheel and the driven wheel rotate, thereby grinding the workpiece. The sanding belt in the existing sanding belt device can only rotate in one direction. In the actual rotation grinding process, due to the different grinding amounts and grinding positions of each workpiece, the sanding belt will be uneven. Therefore, the existing sanding belt device has poor grinding uniformity and the grinding effect is not ideal. The sanding belt needs to swing back and forth continuously to make the sanding belt wear uniformly, thereby improving the grinding quality. Therefore, a sanding belt swinging device is needed to solve the above problems. Summary of the invention

[0003] In view of this, a sanding belt swing device with simple and compact structure, uniform grinding and high grinding quality is provided.

[0004] A sand belt swing device is installed between the sand belt driving wheel and the grinding head shaft of the sand belt machine, and is used to swing the sand belt. The device comprises a driving member, a sand belt guide wheel, an adjusting lever, a lever support, an adjusting screw, a push rod and a bracket. The sand belt guide wheel is close to the sand belt, the adjusting screw is in contact with the push rod, and the push rod can extend or retract from the bracket. One end of the sand belt guide wheel is in contact with the push rod, and the other end is fixed. The lever support is connected to the adjusting lever through a rotating shaft. The adjusting lever has a first end and a second end, and the first end and the second end are respectively located on both sides of the rotating shaft. The first end is connected to the driving member, and the second end is connected to the adjusting screw. The driving member can drive the adjusting lever to rotate back and forth around the rotating shaft. The adjusting screw can be driven to rise and fall by rotating the second end of the adjusting lever back and forth. The lifting and lowering of the adjusting screw can drive the push rod to perform lifting and lowering movements, so that the push rod can drive one end of the sand belt guide wheel to rise and fall, so that the roller of the sand belt guide wheel can perform pitch angle movement on a plane close to the sand belt to pull the sand belt to swing.

[0005] Furthermore, the sanding belt rotates counterclockwise, and the movement direction of the push rod is horizontal to the movement direction of the sanding belt tightly attached to the sanding belt guide wheel. The driving member indirectly drives the push rod to perform reciprocating lifting and lowering motion, and the push rod drives one end of the sanding belt guide wheel to perform reciprocating lifting and lowering motion, so that the roller of the sanding belt guide wheel can perform reciprocating pitch angle motion on a plane tightly attached to the sanding belt to drive the sanding belt to swing back and forth. The reciprocating swing of the sanding belt refers to the axial reciprocating offset motion of the sanding belt along the grinding head axis.

[0006] Furthermore, when the roller of the abrasive belt guide wheel performs reciprocating pitch angle motion, the rolling surface of the roller is always in contact with the inner surface of the abrasive belt.

[0007] Furthermore, the bracket includes a first bracket and a second bracket, and the sanding belt guide wheel is installed between the first bracket and the second bracket.

[0008] Furthermore, the first bracket and the second bracket both have an open slot, one end of the sanding belt guide wheel is installed in the open slot of the first bracket, the bottom of the open slot of the first bracket has a through hole, the push rod can extend from the through hole and abut against one end of the sanding belt guide wheel, and the other end of the sanding belt guide wheel is placed and fixed in the open slot of the second bracket.

[0009] Furthermore, the axial direction of the push rod is parallel to the surface of the abrasive belt or the push rod is vertically arranged, so that the reciprocating lifting and lowering direction of the push rod is substantially parallel to the movement direction of the abrasive belt. Through the vertical lifting and lowering movement of the push rod, one end of the abrasive belt guide wheel moves up and down in a vertical plane, that is, moves up and down.

[0010] Furthermore, the push rod includes a push rod cylinder and a push column, the area of ​​the push rod cylinder is larger than the area of ​​the push column, the push column can extend from the through hole and abut against one end of the sand belt guide wheel, and the adjusting screw abuts against the push rod cylinder.

[0011] Furthermore, the lever support includes two pillars, and the two pillars are separated on two sides of the adjusting lever. The ends of the two pillars are provided with shaft holes. The adjusting lever is hollowed out and the shaft is passed through the position corresponding to the shaft hole. The adjusting lever rotates with the axis of the shaft as the center.

[0012] Furthermore, the abrasive belt swinging device also includes a bracket base plate, the bracket and the abrasive belt guide wheel are arranged above the bracket base plate, the driving member, the adjusting lever, the lever support and the adjusting screw are arranged below the bracket base plate, and a through hole is provided on the bracket base plate, and the push rod can pass through the through hole and cooperate with the bracket.

[0013] Furthermore, the driving member is fixed to the bracket base plate, the bracket is fixed to the bracket base plate, the lever support is fixed to the bracket base plate, and the sanding belt swing device also includes a fixed plate, which is fixedly connected to the bracket base plate, and the fixed plate is also installed on the sanding belt machine through fasteners.

[0014] Furthermore, the adjusting lever is threadably connected to the adjusting screw, and the push rod can be raised or lowered by manually twisting the adjusting screw.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: the driving member indirectly drives the ejector rod to reciprocate and lift, and the ejector rod reciprocates and lifts to drive the roller of the sand belt guide wheel to do reciprocating pitch angle movement on the plane close to the sand belt, so as to pull the sand belt to swing back and forth, so that the sand belt can not only rotate in one direction but also move in other directions, and the wear is consistent everywhere, so that the workpiece can be ground evenly, the sand belt grinding quality is improved, and the structure is simple, compact, easy to operate, and easy to promote. Moreover, in addition to the driving member being able to indirectly drive the ejector rod to reciprocate and lift, the ejector rod can also be reciprocated and lifted by manually adjusting the screw with a knob, which can avoid the situation where the device fails when the driving member fails. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of an assembly of a sanding belt swing device and a sanding belt machine according to an embodiment of the present invention.

[0017] Figure 2 It is a three-dimensional schematic diagram of a sanding belt swinging device according to an embodiment of the present invention.

[0018] Figure 3 It is a three-dimensional schematic diagram of a sand belt swing device in another direction according to an embodiment of the present invention.

[0019] 1. Belt sanding machine; 2. Belt driving wheel; 3. Grinding head shaft; 4. Belt sanding; 5. Driving member; 6. Belt sanding guide wheel; 7. Adjusting lever; 8. Lever support; 9. Adjusting screw; 10. Push rod; 11. Rotating shaft; 12. First bracket; 13. Second bracket; 14. Bracket bottom plate; 15. Fixed plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] See also Figures 1 to 3, shows a sanding belt swinging device provided by an embodiment of the present invention, which is installed between the sanding belt driving wheel 2 and the grinding head shaft 3 of the sanding belt machine 1 and is used to swing the sanding belt 4, including a driving member 5, a sanding belt guide wheel 6, an adjusting lever 7, a lever support 8, an adjusting screw 9, a push rod 10 and a bracket, wherein the sanding belt guide wheel 6 is close to the sanding belt 4, the adjusting screw 9 abuts against the push rod 10, and the push rod 10 can extend or retract from the bracket, one end of the sanding belt guide wheel 6 abuts against the push rod 10, and the other end is fixed, the lever support 8 is connected to the adjusting lever 7 through a rotating shaft 11, and the adjusting lever 7 has a first end and the second end, the first end and the second end are respectively located on both sides of the rotating shaft 11, the first end is connected to the driving member 5, and the second end is connected to the adjusting screw 9, the driving member 5 can drive the adjusting lever 7 to rotate back and forth around the rotating shaft 11, and the back and forth rotation of the second end of the adjusting lever 7 can drive the adjusting screw 9 to rise and fall, and the lifting and lowering of the adjusting screw 9 can drive the push rod 10 to do the lifting and lowering movement, so that the push rod 10 can drive one end of the sanding belt guide wheel 6 to rise and fall, so that the roller of the sanding belt guide wheel 6 can do the pitch angle movement on the plane close to the sanding belt 4 to drive the sanding belt 4 to swing.

[0022] Specifically, the sanding belt 4 rotates counterclockwise, and the movement direction of the push rod 10 is horizontal to the movement direction of the sanding belt 4 tightly attached to the sanding belt guide wheel 6. The driving member 5 indirectly drives the push rod 10 to perform reciprocating lifting and lowering motions. The push rod 10 drives one end of the sanding belt guide wheel 6 to perform reciprocating lifting and lowering motions, so that the roller of the sanding belt guide wheel 6 can perform reciprocating pitch angle motions on the plane tightly attached to the sanding belt 4 to drive the sanding belt 4 to swing back and forth. The reciprocating swing of the sanding belt 4 refers to the axial reciprocating offset motion of the sanding belt 4 along the grinding head shaft 3.

[0023] More specifically, when the roller of the abrasive belt guide wheel 6 performs reciprocating pitch angle motion, the rolling surface of the roller is always in contact with the inner surface of the abrasive belt 4 .

[0024] In some specific embodiments, the driving member 5 is preferably a cylinder, the telescopic rod of the cylinder is fixed to the first end of the adjusting lever 7, when the telescopic rod of the cylinder is extended, the first end of the adjusting lever 7 is driven to move in a direction away from the bracket bottom plate 14, and the second end of the adjusting lever 7 is moved in a direction close to the bracket bottom plate 14, and the adjusting screw 9 connected to the second end of the adjusting lever 7 pushes up the push rod 10, and the push rod 10 pushes up one end of the sand belt guide wheel 6, and vice versa, when the telescopic rod of the cylinder is retracted, the first end of the adjusting lever 7 is driven to move close to the bracket bottom plate 14. The bracket moves in the direction of the bracket base plate 14, the second end of the adjusting lever 7 moves in the direction away from the bracket base plate 14, and the adjusting screw 9 connected to the second end of the adjusting lever 7 falls. Under the action of gravity, the push rod 10 falls with the adjusting screw 9, and one end of the sanding belt guide wheel 6 falls with the push rod 10. Therefore, when the telescopic rod of the cylinder reciprocates, it can indirectly drive one end of the sanding belt guide wheel 6 to reciprocate. Since the other end of the sanding belt guide wheel 6 is fixed, the roller of the sanding belt guide wheel 6 can make reciprocating pitch angle motion to drive the sanding belt 4 to swing back and forth. More specifically, when the sanding belt guide wheel 6 does not make a pitch angle motion, the sanding belt 4 does not swing, but only rotates. When the sanding belt guide wheel 6 makes an elevation angle motion, the sanding belt 4 moves outward, where the outward direction refers to moving along the grinding head axis 3 away from the sanding belt machine 1. Conversely, when the sanding belt guide wheel 6 makes a pitch angle motion, the sanding belt 4 moves inward, where the inward direction refers to moving along the grinding head axis 3 toward the sanding belt machine 1. When the sanding belt guide wheel 6 makes a reciprocating pitch angle motion, the sanding belt 4 simultaneously rotates and reciprocates and swings.

[0025] Specifically, the bracket includes a first bracket 12 and a second bracket 13 , and the sanding belt guide wheel 6 is installed between the first bracket 12 and the second bracket 13 .

[0026] More specifically, both the first bracket 12 and the second bracket 13 have an open slot, one end of the sanding belt guide wheel 6 is installed in the open slot of the first bracket 12, the bottom of the open slot of the first bracket 12 has a through hole, the push rod 10 can extend from the through hole and abut against one end of the sanding belt guide wheel 6, and the other end of the sanding belt guide wheel 6 is placed and fixed in the open slot of the second bracket 13.

[0027] Furthermore, the axial direction of the push rod 10 is parallel to the surface of the sand belt 4 or the push rod 10 is vertically arranged, so that the reciprocating lifting and lowering direction of the push rod 10 is substantially parallel to the movement direction of the sand belt 4. Through the vertical lifting and lowering movement of the push rod 10, one end of the sand belt guide wheel 6 moves up and down in a vertical plane, that is, moves up and down. For example, when the sanding belt 4 rotates counterclockwise, the sanding belt 4 always keeps in contact with the sanding belt guide wheel 6, and the sanding belt 4 moves from top to bottom. When the sanding belt guide wheel 6 rotates horizontally and the push rod 10 is in the initial position, that is, the push rod 10 does not make a lifting movement, the axial direction of the sanding belt guide wheel 6 is consistent with or parallel to the width direction of the sanding belt 4. When the push rod 10 pushes upward, the sanding belt guide wheel 6 tilts upward, that is, one end raises its head. At this time, the axial direction of the sanding belt guide wheel 6 is oblique relative to the surface of the sanding belt guide wheel 6. From the inner side of the sanding belt 4, the sanding belt 4 continues to move from top to bottom, but because the sanding belt guide wheel 6 is obliquely upward, due to the oblique guiding effect of the sanding belt guide wheel 6, that is, one side is high and the other side is low, the sanding belt 4 will deviate to the higher side, that is, the sanding belt 4 will deviate outward during the top-to-bottom movement, thereby achieving the displacement of the sanding belt 4 to the outside of the workpiece and grinding the outer area of ​​the workpiece. Similarly, when the push rod 10 is downward, the sanding belt guide wheel 6 dives downward, that is, one end dives downward. At this time, the axial direction of the sanding belt guide wheel 6 is inclined downward relative to the surface of the sanding belt guide wheel 6. Due to the oblique guiding effect of the sanding belt guide wheel 6, the sanding belt 4 will be offset inward during the top-to-bottom movement, thereby offsetting the sanding belt 4 to the inside of the workpiece and grinding the inner area of ​​the workpiece, which is equivalent to returning to the inside. Therefore, through this reciprocating motion, the offset control of the sanding belt 4 can be achieved, that is, the movement control of the offset amount in the width direction of the sanding belt 4. When the push rod 10 is reciprocating, the sanding belt 4 moves back and forth in the width direction to achieve uniform wear of the sanding belt 4 itself.

[0028] More specifically, the push rod 10 includes a push rod cylinder and a push column, the area of ​​the push rod cylinder is larger than the area of ​​the push column, the push column can extend from the through hole and abut against one end of the sanding belt guide wheel 6, and the adjusting screw 9 abuts against the push rod cylinder.

[0029] Specifically, the lever support 8 includes two pillars, and the two pillars are separated on the two sides of the adjusting lever 7. The ends of the two pillars are provided with shaft holes. The adjusting lever 7 is hollowed out at the position corresponding to the shaft hole and the shaft 11 is passed through. The adjusting lever 7 rotates with the axis of the shaft 11 as the center.

[0030] Specifically, the abrasive belt swinging device also includes a bracket base plate 14, the bracket and the abrasive belt guide wheel 6 are arranged above the bracket base plate 14, the driving member 5, the adjusting lever 7, the lever support 8 and the adjusting screw 9 are arranged below the bracket base plate 14, and a through hole is provided on the bracket base plate 14, and the push rod 10 can pass through the through hole and cooperate with the bracket.

[0031] More specifically, the driving member 5 is fixed to the bracket base plate 14, the bracket is fixed to the bracket base plate 14, the lever support 8 is fixed to the bracket base plate 14, and the sanding belt swing device also includes a fixed plate 15, which is fixedly connected to the bracket base plate 14, and the fixed plate 15 is also installed on the sanding belt machine 1 through fasteners.

[0032] Specifically, the adjusting lever 7 is threadedly connected to the adjusting screw 9 , and the push rod 10 can also be raised or lowered by manually twisting the adjusting screw 9 .

[0033] To sum up, the driving member 5 indirectly drives the push rod 10 to reciprocate and rise and fall, and the reciprocating rise and fall of the push rod 10 drives the roller of the sanding belt guide wheel 6 to make reciprocating pitch angle motion on the plane close to the sanding belt 4, so as to pull the sanding belt 4 to swing back and forth, so that the sanding belt 4 can not only rotate in a single direction but also move in other directions, and the wear at all places is consistent, so that the workpiece can be ground evenly, the sanding belt grinding quality is improved, and the structure is simple and easy to promote. In addition, in addition to the driving member 5 being able to indirectly drive the push rod 10 to reciprocate and rise and fall, the push rod 10 can also be reciprocated by manually adjusting the screw 9 with a knob, which can avoid the device failure when the driving member 5 fails.

[0034] It should be noted that the present invention is not limited to the above-mentioned embodiments. Based on the creative spirit of the present invention, those skilled in the art may also make other changes. These changes made based on the creative spirit of the present invention should be included in the scope of protection required by the present invention.

Claims

1. A sanding belt swinging device, installed between the sanding belt driving wheel and the grinding head shaft of the sanding belt machine, used for swinging the sanding belt, characterized in that:

7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein the adjusting screw is cooperatively connected with the adjusting screw wheel, and the adjusting screw wheel is cooperatively connected with the adjusting screw wheel.

2. A sanding belt oscillating device as claimed in claim 1, characterized in that: The sanding belt rotates counterclockwise, and the movement direction of the push rod is horizontal to the movement direction of the sanding belt tightly attached to the sanding belt guide wheel. The driving member indirectly drives the push rod to perform reciprocating lifting and lowering motion, and the push rod drives one end of the sanding belt guide wheel to perform reciprocating lifting and lowering motion, so that the roller of the sanding belt guide wheel can perform reciprocating pitch angle motion on the plane tightly attached to the sanding belt to drive the sanding belt to swing back and forth. The reciprocating swing of the sanding belt refers to the axial reciprocating offset motion of the sanding belt along the grinding head shaft.

3. A sanding belt oscillating device as claimed in claim 2, characterized in that: When the roller of the abrasive belt guide wheel performs reciprocating pitching angle motion, the rolling surface of the roller is always in contact with the inner surface of the abrasive belt.

4. The abrasive belt oscillating device according to claim 1, characterized in that: The bracket includes a first bracket and a second bracket, the sanding belt guide wheel is installed between the first bracket and the second bracket, the first bracket and the second bracket both have an open slot, one end of the sanding belt guide wheel is installed in the open slot of the first bracket, the bottom of the open slot of the first bracket has a through hole, the push rod can extend from the through hole and abut against one end of the sanding belt guide wheel, and the other end of the sanding belt guide wheel is placed and fixed in the open slot of the second bracket.

5. The abrasive belt oscillating device according to claim 1, characterized in that: The axial direction of the push rod is parallel to the surface of the abrasive belt or the push rod is vertically arranged, so that the reciprocating lifting and lowering direction of the push rod is substantially parallel to the moving direction of the abrasive belt.

6. A sanding belt oscillating device as claimed in claim 5, characterized in that: The push rod comprises a push rod cylinder and a push column, the area of ​​the push rod cylinder is larger than the area of ​​the push column, the push column can extend from the through hole and abut against one end of the sand belt guide wheel, and the adjusting screw abuts against the push rod cylinder.

7. The abrasive belt oscillating device according to claim 1, characterized in that: The lever support includes two pillars, and the two pillars are separated on the two sides of the adjusting lever. The ends of the two pillars are provided with shaft holes. The adjusting lever is hollowed out at the position corresponding to the shaft hole and the shaft is passed through. The adjusting lever rotates with the axis of the shaft as the center.

8. The abrasive belt oscillating device according to claim 1, characterized in that: The abrasive belt swinging device also includes a bracket bottom plate, the bracket and the abrasive belt guide wheel are arranged above the bracket bottom plate, the driving member, the adjusting lever, the lever support and the adjusting screw are arranged below the bracket bottom plate, and a through hole is arranged on the bracket bottom plate, and the push rod can pass through the through hole and cooperate with the bracket.

9. The abrasive belt oscillating device according to claim 8, characterized in that: The driving member is fixed to the bracket base plate, the bracket is fixed to the bracket base plate, the lever support is fixed to the bracket base plate, and the sanding belt swinging device also includes a fixed plate, which is fixedly connected to the bracket base plate and is also mounted on the sanding belt machine through fasteners.

10. The abrasive belt oscillating device according to claim 1, characterized in that: The adjusting lever is threadedly connected to the adjusting screw, and the push rod can also be raised and lowered by manually twisting the adjusting screw.

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