Tool grinding belt sander

Abstract

A cutter grinding abrasive belt machine is composed of a base, a support plate, a positioning sleeve, a fixed plate, a shield, a locking handle, a motor, a driving wheel, a conical shaft, a polishing cloth wheel, a support plate, a drawing positioning pin, a workbench, a supporting plate, a graphite plate, a support plate, a support, a guide shaft, a gap adjusting plate, a compression spring, a tensioning handle, a roller frame, a roller, a pin shaft, a pressing plate, a driven wheel, an abrasive belt, a side door, a round handle, a deflection adjusting handle, a deflection adjusting spring, a V-shaped block, a 60-degree angle block, a positioning shaft, a connecting piece, a cutter fixing frame, a length control block, a locking screw, a pressing screw, a driven shaft, a motor speed regulator, an axle, and a cutter fixing frame support leg. The machine body can rotate, the workbench can adjust the angle, the grinding and polishing of different angle cutters can be realized, the small accessories can assist the grinding of different cutters, the motor is an adjustable speed motor, the speed of the abrasive belt can be adjusted, the volume is small, the weight is light, the movement and carrying are convenient, and the technical requirements of the operator during cutter grinding are not high.

Description

Technical Field

[0001] This invention relates to a tool grinding belt sander, which is used for grinding and polishing woodworking tools. Background Technology

[0002] Grinding woodworking tools requires a high level of skill from the operator. Traditional belt sanders are relatively large, making them inconvenient to move and carry. The worktable cannot be flipped, the angle cannot be adjusted during grinding, and the grinding angle of the tool is not easy to control, making it difficult to grind a qualified cutting edge. They cannot meet the grinding needs of workpieces with different angles, and the motor speed cannot be adjusted, nor can they meet the grinding needs of tools made of different materials. Summary of the Invention

[0003] This invention features a rotatable body, allowing the worktable to be rotated and adjusted as needed, enabling grinding and polishing of tools at different angles. Included accessories assist in grinding various tools. The motor is an adjustable-speed motor, allowing for adjustment of the sanding belt speed as required. It is small in size and lightweight, solving the problems of traditional belt sanders, such as limited functionality, inconvenient adjustment, and difficulty in movement and carrying. Furthermore, it does not require high operator skill during tool grinding.

[0004] The solution to the problem of this invention is a tool grinding belt sander, which consists of a base, support plate, positioning sleeve, fixing plate, protective cover, locking handle, motor, drive wheel, tapered shaft, polishing cloth wheel, support plate, pull-out positioning pin, worktable, tray, graphite plate, bracket plate, bracket, guide shaft, gap adjustment plate, compression spring, tensioning handle, roller frame, roller, pin shaft, pressure plate, driven wheel, sanding belt, side door, round handle, adjustment handwheel, adjustment spring, V-block, 60° angle block, positioning shaft, connecting piece, tool fixing bracket, length control block, locking screw, clamping screw, driven shaft, motor speed controller, wheel axle, and tool fixing bracket support legs.

[0005] A support plate is welded to the base, and an arc-shaped groove is cut into the support plate. A positioning sleeve is installed on the fixed plate, and a protective cover is welded to the fixed plate. The fixed plate is positioned on the support plate by the positioning sleeve and can rotate around the support plate. It is fixed to the support plate by two locking handles. The motor is installed on the fixed plate, and a drive wheel is installed on the motor shaft. A tapered shaft is installed at the end of the motor shaft, and a polishing cloth wheel is installed on the tapered shaft. The support plate is installed on the fixed plate by locking handles. A pull-out positioning pin is installed on the support plate. A worktable is installed on the support plate, and a tray is installed on the fixed plate. A graphite plate is adhered to the tray. A support plate is installed on the fixed plate. The frame has guide grooves, and the bracket and bracket plate are connected by guide shafts. A compression spring is installed between the bracket and the bracket plate. A gap adjustment plate is installed on the bracket plate. A roller frame is welded to the tension handle. The rollers are mounted on the roller frame by axles. The roller frame and the bracket are connected by pins. The driven shaft is fixed to the bracket by a pressure plate. A driven wheel is installed on the driven shaft. A sanding belt is installed on the drive wheel and the driven wheel. The side door is installed on the support plate by two round handles. An adjustment handwheel is installed on the fixed plate. An adjustment spring is installed between the fixed plate and the adjustment handwheel. A positioning shaft is installed on the fixed plate. A length control block is installed on the base.

[0006] Loosen the two locking handles, and the fixing plate can rotate around the positioning sleeve on the support plate, realizing the rotation of the entire machine body. Rotate to the angle required for tool grinding, and then lock it with the locking handles.

[0007] The fixed plate has positioning grooves, each corresponding to a different angle. The end of the support plate is bent, and the positioning pin is pulled out to engage with the positioning groove for positioning. After loosening the locking handle, the positioning pin is pulled out, and the support plate rotates around the locking handle, causing the worktable to rotate. When it reaches the desired angle, the positioning pin is pulled out and inserted into the groove to fix the support plate. The locking handle is then tightened to achieve the adjustment of the worktable angle.

[0008] A rectangular groove is cut on the worktable, and the guide strip of the V-block is placed in the rectangular groove. The V-block can be slid left and right to assist the tool grinding, and the tool can also be placed in the V-groove for grinding.

[0009] To grind a 60° tool, place the guide strip of the 60° angle block inside the rectangular groove, place the tool against the side of the 60° angle block, and slide the 60° angle block left and right to complete the grinding.

[0010] If you need to grind a circular arc-shaped tool, remove the support plate and worktable, install the connector on the positioning shaft, and install the tool holder legs on the connector. Depending on the tool grinding angle, loosen the locking screw to adjust the angle of the tool holder and the tool holder legs, tighten the locking screw, measure the length of the tool extending out of the tool holder on the length control block, insert the tool into the tool holder, tighten it with the clamping screw, and rotate the tool holder to achieve the grinding of the set tool arc.

[0011] The motor rotates, driving the polishing cloth wheel to rotate. After the tool is ground, it can be polished with the polishing cloth wheel to make the tool surface smoother. It can also be used to polish other workpieces.

[0012] When replacing the sanding belt, remove the side door, move the tension handle to rotate the roller frame, the roller pushes the bracket downward, and drives the driven wheel downward. After replacing the sanding belt, move the tension handle back to its original position, and the sanding belt will be tensioned under the action of the compression spring. Then, install the side door to complete the sanding belt replacement.

[0013] If the sanding belt deviates during use, rotate the adjustment handwheel to move the support and change the tilt angle of the support to complete the belt deviation adjustment.

[0014] The adjustable speed motor can adjust different speeds according to the grinding needs of the workpiece, thereby changing the linear speed of the abrasive belt and achieving the ideal grinding effect.

[0015] The beneficial effects of this invention are as follows: A tool grinding belt sander is flexible in use. The machine body angle can be adjusted according to the requirements of grinding tools, thereby changing the sanding belt angle. The worktable can be rotated and adjusted as needed, enabling grinding and polishing of tools at different angles. It is small in size and light in weight, making it easy to carry and move. It can meet the grinding needs of different tools at various angles. The speed-adjustable motor can change the sanding belt speed to meet the grinding and polishing needs of workpieces made of different materials, achieving the ideal state. Attached Figure Description

[0016] The invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 Left Axonometric Drawing

[0018] Figure 2 Right Axonometric Drawing

[0019] Figure 3 Front view of partial section

[0020] Figure 4 Right view of the side door being removed

[0021] Figure 5 Diagram for installing V-blocks

[0022] Figure 6 Schematic diagram for installing a 60° angle block

[0023] Figure 7 Axonometric drawing of the fixed frame assembly

[0024] Figure 8 Schematic diagram of arc-shaped tool grinding

[0025] The diagram shows: 1. Base, 2. Support plate, 3. Positioning sleeve, 4. Fixing plate, 5. Protective cover, 6. Locking handle, 7. Motor, 8. Drive wheel, 9. Conical shaft, 10. Polishing cloth wheel, 11. Support plate, 12. Pull-out positioning pin, 13. Worktable, 14. Support plate, 15. Graphite plate, 16. Support plate, 17. Support, 18. Guide shaft, 19. Gap adjustment plate, 20. Compression spring, 21. Tensioning handle, 22. Roller frame, 23. Roller, 24. Pin shaft, 25. Pressure plate, 26. Driven wheel, 27. Sanding belt, 28. Side door, 29. Round handle, 30. Adjustment handwheel, 31. Adjustment spring, 32. V-block, 33. 60° angle block, 34. Positioning shaft, 35. Connector, 36. Tool holder, 37. Length control block, 38. Locking screw, 39. Clamping screw, 40. Driven shaft, 41. Motor speed controller, 42. Wheel axle, 43. Tool holder support leg, 44. Arc-shaped tool. Detailed Implementation

[0026] A support plate (2) is welded onto the base (1). An arc groove is cut into the support plate (2). A positioning sleeve (3) is installed on the fixed plate (4). A protective cover (5) is welded onto the fixed plate (4). The fixed plate (4) is positioned and installed on the support plate (2) by the positioning sleeve (3). The fixed plate (4) can rotate around the support plate (2). It is fixed on the support plate (2) by two locking handles (6). The motor (7) is installed on the fixed plate (4). A drive wheel (8) is installed on the shaft of the motor (7). The end is equipped with a tapered shaft (9), on which a polishing cloth wheel (10) is mounted. A support plate (11) is mounted on a fixed plate (4) with a locking handle (6). A pull-out positioning pin (12) is mounted on the support plate (11). A worktable (13) is mounted on the support plate (11). A tray (14) is mounted on the fixed plate (4). A graphite plate (15) is attached to the tray (14). A bracket plate (16) is mounted on the fixed plate (4). A guide groove is opened on the bracket (17) for guiding. Shaft (18) connects bracket (17) and bracket plate (16). A compression spring (20) is installed between bracket (17) and bracket plate (16). A gap adjustment plate (19) is installed on bracket plate (16). A roller frame (22) is welded to tension handle (21). Roller (23) is mounted on roller frame (22) via axle (42). Roller frame (22) and bracket (17) are connected by pin (24). Driven shaft (40) is fixed to support by pressure plate (25). On the frame (17), a driven wheel (26) is installed on the driven shaft (40), a sanding belt (27) is installed on the driving wheel (8) and the driven wheel (26), the side door (28) is installed on the support plate (14) via two round handles (29), an adjustment handwheel (30) is installed on the fixed plate (4), an adjustment spring (31) is installed between the fixed plate (4) and the adjustment handwheel (30), a positioning shaft (34) is installed on the fixed plate (4), and a length control block (37) is installed on the base (1).

[0027] Loosen the two locking handles (6), and the fixing plate (4) can rotate around the positioning sleeve (3) on the support plate (2) to realize the rotation of the entire machine body. Rotate to the angle required for tool grinding, and then lock it with the locking handle (6).

[0028] The fixed plate (4) has positioning grooves, each corresponding to a different degree. The end of the support plate (11) is bent and positioned by pulling the positioning pin (12) to cooperate with the positioning groove. After loosening the locking handle (6), pull out the positioning pin (12). The support plate (11) rotates around the locking handle (6) to drive the worktable (13) to rotate to the required angle. Pull out the positioning pin (12) to insert it into the groove to fix the support plate (11). Lock the handle (6) to lock it, thus realizing the adjustment of the angle of the worktable (13).

[0029] A rectangular slot is opened on the worktable (13). The guide strip of the V-block (32) is placed in the rectangular slot. The V-block (32) can be slid left and right to assist the tool grinding. The tool can also be placed in the V-slot for grinding.

[0030] To grind a 60° tool, place the guide bar of the 60° angle block (33) in the rectangular groove, place the tool against the side of the 60° angle block (33), and slide the 60° angle block (33) left and right to complete the grinding.

[0031] If it is necessary to grind an arc-shaped tool (44), remove the support plate (11) and the worktable (13), install the connector (35) on the positioning shaft (34), install the tool holder support leg (43) on the connector (35), and loosen the locking screw (38) to adjust the angle of the tool holder (36) and the tool holder support leg (43) according to the tool grinding angle. Tighten the locking screw (38), measure the length of the tool extending out of the tool holder (36) on the length control block (37), insert the tool into the tool holder (36), tighten it with the clamping screw (39), and rotate the tool holder (36) to achieve the grinding of the set tool arc.

[0032] The motor (7) rotates and drives the polishing cloth wheel (10) to rotate. After the tool is ground, it can be polished with the polishing cloth wheel (10) to make the tool surface smoother. It can also polish other workpieces.

[0033] When replacing the sanding belt (27), remove the side door (28), move the tensioning handle (21), drive the roller frame (22) to rotate, the roller (23) pushes the bracket (17) to move downward, and drives the driven wheel (26) to move downward. After replacing the sanding belt (27), move the tensioning handle (21) to reset, and tension the sanding belt (27) under the action of the compression spring (20). Install the side door (28) to complete the replacement of the sanding belt (27).

[0034] If the sanding belt (27) deviates during use, rotate the adjustment handwheel (30) to push the support (17) to move, change the tilt angle of the support (17), and complete the adjustment of the sanding belt (27).

[0035] The adjustable speed motor (7) can adjust different speeds according to the needs of workpiece grinding, change the linear speed of the abrasive belt, and achieve the ideal grinding effect.

[0036] The beneficial effects of this invention are as follows: A tool grinding belt sander is flexible in use. The machine body angle can be adjusted according to the requirements of grinding tools, thereby changing the sanding belt angle. The worktable can be rotated and adjusted as needed, enabling grinding and polishing of tools at different angles. It is small in size and light in weight, making it easy to carry and move. It can meet the grinding needs of different tools at various angles. The speed-adjustable motor can change the sanding belt speed to meet the grinding and polishing needs of workpieces made of different materials, achieving the ideal state.

Claims

1. A knife grinding belt sander, characterized in that The utility model discloses a polishing machine, which is composed of a base, a support plate, a positioning sleeve, a fixed plate, a shield, a locking handle, a motor, a driving wheel, a conical shaft, a polishing cloth wheel, a supporting plate, a drawing positioning pin, a workbench, a supporting plate, a graphite plate, a support plate, a support, a guide shaft, a gap adjusting plate, a compression spring, a tensioning handle, a roller frame, a roller, a pin shaft, a pressing plate, a driven wheel, a sand belt, a side door, a round handle, a deviation adjusting handle, a deviation adjusting spring, a V-shaped block, a 60-degree angle block, a positioning shaft, a connecting piece, a cutter fixing frame, a length control block, a locking screw, a pressing screw, a driven shaft, a motor speed regulator, an axle and a cutter fixing frame support leg.

2. A knife grinding belt sander according to claim 1, characterized in that The base is welded with the support plate, and the support plate is provided with an arc-shaped groove. The fixed plate is positioned and installed on the support plate through the positioning sleeve. The fixed plate can rotate around the support plate. The motor is installed on the fixed plate. The motor shaft is provided with the driving wheel. The conical shaft is installed on the polishing cloth wheel. The supporting plate is installed on the fixed plate through the locking handle. The drawing positioning pin is installed on the supporting plate. The supporting plate is installed on the fixed plate. The graphite plate is attached to the supporting plate. The support plate is installed on the fixed plate. The support is provided with a guide groove. The support and the support plate are connected through the guide shaft. The compression spring is installed between the support and the support plate. The gap adjusting plate is installed on the support plate. The roller frame is welded on the tensioning handle. The roller is installed on the roller frame through the axle. The driven shaft is fixed on the support through the pressing plate. The driven wheel is installed on the driven shaft. The sand belt is installed on the driving wheel and the driven wheel. The side door is installed on the supporting plate through the two round handles. The deviation adjusting handle is installed on the fixed plate. The deviation adjusting spring is installed between the fixed plate and the deviation adjusting handle. The positioning shaft is installed on the fixed plate. The length control block is installed on the base. The guide strip of the V-shaped block is placed in the rectangular groove of the workbench. The guide strip of the 60-degree angle block is placed in the rectangular groove. The connecting piece is installed on the positioning shaft. The cutter fixing frame support leg is installed on the connecting piece. The angle of the cutter fixing frame and the cutter fixing frame support leg can be adjusted by loosening the locking screw. The cutter is inserted into the cutter fixing frame during work, and the pressing screw is tightened. The positioning groove is formed on the fixed plate. The end of the supporting plate is bent. The supporting plate is positioned through the cooperation between the drawing positioning pin and the positioning groove. The supporting plate is rotated around the locking handle to drive the workbench to rotate after the locking handle is loosened and the drawing positioning pin is pulled out.

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