Abrasive belt antiskid and positioning mechanism for belt sander

Abstract

The utility model relates to the field of belt sanders, in particular to an abrasive belt anti-skidding and positioning mechanism for a belt sander, which comprises a base and an abrasive belt, a mounting seat is arranged at the upper end of the base, a driving wheel is rotatably mounted on the upper end face of the mounting seat, a tensioning wheel is arranged on the front side of the mounting seat, and the lower end of the tensioning wheel is movably connected with the mounting seat through a connecting rod. An adjusting plate is arranged on the left side of the lower end of the mounting seat, a mounting shaft seat is mounted at one end, away from the mounting seat, of the adjusting plate, and a spindle is mounted on the inner side of the mounting shaft seat and in transmission connection with the driving wheel and the tensioning wheel through abrasive belts. The abrasive belt is arranged on the outer side of the driving wheel in a sleeving mode, so that the rubber sleeve and the abrasive belt are attached, friction force is increased, skid resistance is achieved, the movable rods on the two sides can move freely through the elasticity of the spring, adaptation is achieved according to the width of the abrasive belt, the upper side and the lower side of the abrasive belt are limited through the blocking pieces, deviation is prevented, and the skid resistance and positioning effect is improved. And the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the field of abrasive belt machines, in particular to an abrasive belt anti-slip and positioning mechanism for abrasive belt machines. Background Art

[0002] Belt sanding machines are mainly used to polish workpieces and increase the surface finish of workpieces. They are generally composed of a driving wheel, a driven wheel, and an abrasive belt. The abrasive belt is installed on the outside of the driving wheel and the driven wheel to facilitate the abrasive belt to polish the workpiece surface. The abrasive belt and driving wheel are mostly in a set, which is convenient for replacement and disassembly.

[0003] The existing belt sander transmission structure is relatively complex, but lacks anti-slip and positioning structures. During rapid rotation, the belt and the workpiece surface are in contact and subjected to force, which can easily cause the belt to deviate and affect the polishing effect.

[0004] Therefore, in view of the problem that the transmission structure of the above-mentioned existing sanding belt machine is relatively complex, but lacks anti-slip and positioning structures, during rapid rotation, the sanding belt and the workpiece surface are in contact and subjected to force, which easily causes the sanding belt to deviate and affect the polishing effect. Therefore, a sanding belt anti-slip and positioning mechanism for the sanding belt machine can be designed to add an anti-slip structure to ensure the stability of the sanding belt installation. Utility Model Content

[0005] In order to overcome the problem that the existing belt sander transmission structure is relatively complex but lacks anti-slip and positioning structures, during rapid rotation, the belt and the workpiece surface are in contact and subjected to force, which easily causes the belt to deviate and affects the polishing effect.

[0006] The technical solution of the utility model is: an anti-slip and positioning mechanism for an abrasive belt machine, comprising a base and an abrasive belt, a mounting seat is provided at the upper end of the base, a driving wheel is rotatably mounted on the upper end surface of the mounting seat, a tensioning wheel is provided on the front side of the mounting seat, the lower end of the tensioning wheel and the mounting seat are movably connected through a connecting rod, an adjusting plate is provided on the left side of the lower end of the mounting seat, a mounting shaft seat is installed at the end of the adjusting plate away from the mounting seat, a main shaft is installed on the inner side of the mounting shaft seat, the main shaft and the driving wheel and the tensioning wheel are connected through a sanding belt transmission, and an anti-slip component is provided on the surface of the driving wheel.

[0007] Preferably, a servo motor is fixedly mounted on the side of the lower end of the mounting seat, and the output end of the servo motor is fixedly connected to the lower end of the driving wheel, so as to facilitate driving the abrasive belt for grinding.

[0008] Preferably, a positioning block is rotatably installed at the lower end of the tensioning wheel through a connecting shaft, the lower end of the positioning block and the connecting rod are detachably connected by bolts, one end of the connecting rod is rotatably connected to the mounting seat, and the other end of the connecting rod is movably connected to the mounting seat through a cylinder, so as to facilitate adjustment of the tension.

[0009] Preferably, a positioning box is fixedly installed on the left side of the lower end of the mounting seat, the right end of the adjusting plate is slidingly connected to the positioning box, the lower end of the adjusting plate is threadedly installed with a positioning pin, the upper end of the positioning pin is fit-connected to the adjusting plate, and the lower end of the positioning pin is fixedly installed with a turning handle, which can adjust the position of the adjusting plate and improve flexibility.

[0010] Preferably, the right end of the mounting shaft seat is detachably connected by bolts and an adjustment plate, and the left end of the mounting shaft seat is designed as a U-shaped structure. Bearing seats are installed at the upper and lower ends of the main shaft, and the two bearing seats are detachably connected to the upper and lower ends of the mounting shaft seat respectively, which is convenient for replacing the main shaft and convenient for adapting to different main shafts when grinding different products.

[0011] Preferably, the anti-slip component includes a groove, the outer side of the surface of the driving wheel is provided with a groove, the grooves are distributed in a circular array, the inner side of the groove is provided with a sleeve, the surface of the sleeve is provided with a rubber sleeve, the upper and lower ends of the sleeve are slidably installed with movable rods, and the surface of the movable rod is fixedly installed with a baffle, and the contact between the rubber sleeve and the sanding belt is utilized to increase the anti-slip effect.

[0012] Preferably, one end of the two movable rods extends to the outside of the sleeve, and the other ends of the two movable rods are movably connected by a spring. Guide grooves are provided at the upper and lower ends of the sleeve surface, and the guide grooves and the baffles are slidably connected. The upper and lower sides of the sanding belt are limited by the baffles on both sides to prevent deviation.

[0013] Beneficial effects of the utility model:

[0014] The sanding belt machine uses a sanding belt anti-slip and positioning mechanism. The sanding belt sleeve is placed on the outside of the driving wheel, so that the rubber sleeve and the sanding belt fit together, increasing friction and achieving anti-slip. The elasticity of the spring is used to allow the movable rods on both sides to move freely and adapt according to the width of the sanding belt. The baffle limits the upper and lower sides of the sanding belt to prevent deviation, increase the anti-slip and positioning effects, and improve practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Shown is a schematic diagram of the overall structure of the sanding belt anti-slip and positioning mechanism for the sanding belt machine of the present utility model;

[0016] Figure 2 Shown is a schematic diagram of the structure of the anti-slip and positioning mechanism adjustment plate of the sanding belt machine of the utility model;

[0017] Figure 3 Shown is a schematic diagram of the structure of the shaft seat for the sanding belt anti-slip and positioning mechanism for the sanding belt machine of the present invention;

[0018] Figure 4 Shown is a schematic diagram of the structure of the driving wheel of the sanding belt anti-slip and positioning mechanism for the sanding belt machine of the present invention;

[0019] Figure 5 Shown is a schematic diagram of the internal structure of the groove of the anti-slip and positioning mechanism of the sanding belt machine of the present invention.

[0020] Explanation of the accompanying drawings: 1. Base; 2. Mounting seat; 21. Servo motor; 3. Sanding belt; 4. Driving wheel; 5. Tensioning wheel; 51. Positioning block; 6. Connecting rod; 7. Adjusting plate; 71. Positioning box; 72. Positioning pin; 8. Mounting shaft seat; 9. Main shaft; 91. Bearing seat; 10. Groove; 11. Sleeve; 12. Movable rod; 13. Baffle; 14. Guide groove. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] See also Figure 1-Figure 5 The utility model provides an embodiment: an anti-slip and positioning mechanism for an abrasive belt machine, comprising a base 1 and an abrasive belt 3. A mounting seat 2 is provided at the upper end of the base 1, a driving wheel 4 is rotatably mounted on the upper end surface of the mounting seat 2, a servo motor 21 is fixedly mounted on the side of the lower end of the mounting seat 2, an output end of the servo motor 21 is fixedly connected to the lower end of the driving wheel 4, a tensioning wheel 5 is provided on the front side of the mounting seat 2, the lower end of the tensioning wheel 5 and the mounting seat 2 are movably connected by a connecting rod 6, and an adjusting plate 7 is provided on the left side of the lower end of the mounting seat 2. The end of the adjusting plate 7 away from the mounting seat 2 is equipped with a mounting shaft seat 8, and the inner side of the mounting shaft seat 8 is equipped with a main shaft 9. The main shaft 9 and the driving wheel 4 and the tensioning wheel 5 are connected through the sanding belt 3. The surface of the driving wheel 4 is provided with an anti-slip component. The sanding belt 3 is installed on the outside of the main shaft 9 and the driving wheel 4 and the tensioning wheel 5. The three position points of the main shaft 9, the driving wheel 4 and the tensioning wheel 5 make the sanding belt 3 form a triangular structure and drive the sanding belt 3 to move, which is convenient for the polishing operation. At the same time, when the sanding belt 3 is installed, the anti-slip component is used to increase the friction to prevent deviation.

[0023] See 1 and Figure 2 In this embodiment, the lower end of the tensioning wheel 5 is rotatably installed with a positioning block 51 through a connecting shaft. The lower end of the positioning block 51 and the connecting rod 6 are detachably connected by bolts. One end of the connecting rod 6 is rotatably connected to the mounting seat 2, and the other end of the connecting rod 6 is movably connected to the mounting seat 2 through a cylinder. The cylinder is used to drive one end of the connecting rod 6 to move, which facilitates the adjustment of the position of the tensioning wheel 5 and changes the tension of the sanding belt 3 after installation.

[0024] See also Figure 1 、 Figure 2 and Figure 3In this embodiment, a positioning box 71 is fixedly installed on the left side of the lower end of the mounting seat 2, and the right end of the adjusting plate 7 is slidably connected to the positioning box 71. The lower end of the adjusting plate 7 is threadedly installed with a positioning pin 72. The upper end of the positioning pin 72 is fitly connected to the adjusting plate 7, and the lower end of the positioning pin 72 is fixedly installed with a turning handle. The right end of the mounting shaft seat 8 is detachably connected to the adjusting plate 7 by a bolt, and the left end of the mounting shaft seat 8 is U-shaped. The upper and lower ends of the main shaft 9 are both equipped with bearing seats 91, and the two bearing seats 91 are detachably connected to the upper and lower ends of the mounting shaft seat 8 respectively. The position of the main shaft 9 can be adjusted by sliding the adjusting plate 7 and the positioning box 71, and the main shaft 9 can be replaced by removing the bearing seat 91, which is convenient for adapting to different workpieces.

[0025] See also Figure 1 、 Figure 4 and Figure 5 In this embodiment, the anti-slip component includes a groove 10. A groove 10 is provided on the outer side of the surface of the driving wheel 4. The grooves 10 are distributed in a ring array. A sleeve 11 is provided on the inner side of the groove 10. A rubber sleeve is provided on the surface of the sleeve 11. Movable rods 12 are slidably installed on the upper and lower ends of the sleeve 11. A baffle 13 is fixedly installed on the surface of the movable rod 12. One end of the two movable rods 12 extends to the outer side of the sleeve 11. The other ends of the two movable rods 12 are movably connected by a spring. Guide grooves 14 are provided on the upper and lower ends of the surface of the sleeve 11. The guide grooves 14 and the baffle 13 are slidably connected. The sanding belt 3 is sleeved on the outer side of the driving wheel 4, so that the rubber sleeve and the sanding belt 3 fit together, increase friction, and achieve anti-slip. The baffle 13 limits the upper and lower sides of the sanding belt 3 to prevent deviation, thereby increasing the anti-slip and positioning effects.

[0026] When working, the sanding belt 3 is installed on the outside of the main shaft 9, the driving wheel 4 and the tensioning wheel 5. The three position points of the main shaft 9, the driving wheel 4 and the tensioning wheel 5 make the sanding belt 3 form a triangular structure and drive the sanding belt 3 to move, which is convenient for the polishing operation. The cylinder is used to drive one end of the connecting rod 6 to move, which is convenient for adjusting the position of the tensioning wheel 5 and changing the tension of the sanding belt 3 after installation. At the same time, the position of the main shaft 9 can be adjusted by sliding the adjusting plate 7 and the positioning box 71, and the main shaft 9 can be replaced by removing the bearing seat 91, which is convenient for adapting to different workpieces, and the sanding belt 3 is installed on the outside of the driving wheel 4, so that the rubber sleeve and the sanding belt 3 fit together, increasing friction and achieving anti-slip. The baffle 13 limits the upper and lower sides of the sanding belt 3 to prevent deviation and increase the anti-slip and positioning effects.

[0027] Through the above steps, the sanding belt 3 is sleeved on the outside of the driving wheel 4, so that the rubber sleeve and the sanding belt 3 fit together, increasing friction and achieving anti-slip, and the baffle 13 limits the upper and lower sides of the sanding belt 3 to prevent deviation, increase the anti-slip and positioning effects, so as to solve the problem that the transmission structure of the existing sanding belt machine is relatively complex, but lacks anti-slip and positioning structures. During rapid rotation, the sanding belt and the workpiece surface are in contact and subjected to force, which easily causes the sanding belt to deviate, affecting the polishing effect.

Claims

1. A sanding belt anti-slip and positioning mechanism for a sanding belt machine, comprising a base (1), characterized in that: The invention also includes a sanding belt (3), a mounting seat (2) is provided at the upper end of the base (1), a driving wheel (4) is rotatably installed on the upper end surface of the mounting seat (2), a tensioning wheel (5) is provided on the front side of the mounting seat (2), the lower end of the tensioning wheel (5) and the mounting seat (2) are movably connected through a connecting rod (6), an adjusting plate (7) is provided on the left side of the lower end of the mounting seat (2), a mounting shaft seat (8) is installed at the end of the adjusting plate (7) away from the mounting seat (2), a main shaft (9) is installed on the inner side of the mounting shaft seat (8), the main shaft (9) and the driving wheel (4) and the tensioning wheel (5) are connected through the sanding belt (3), and an anti-skid component is provided on the surface of the driving wheel (4).

2. The anti-slip and positioning mechanism for a sanding belt machine according to claim 1, characterized in that: A servo motor (21) is fixedly mounted on the side of the lower end of the mounting seat (2), and the output end of the servo motor (21) is fixedly connected to the lower end of the driving wheel (4).

3. The anti-slip and positioning mechanism for a sanding belt machine according to claim 1, characterized in that: The lower end of the tensioning wheel (5) is rotatably mounted with a positioning block (51) via a connecting shaft. The lower end of the positioning block (51) and the connecting rod (6) are detachably connected via bolts. One end of the connecting rod (6) is rotatably connected to the mounting seat (2), and the other end of the connecting rod (6) is movably connected to the mounting seat (2) via a cylinder.

4. The anti-slip and positioning mechanism for a sanding belt machine according to claim 1, characterized in that: A positioning box (71) is fixedly installed on the left side of the lower end of the mounting seat (2), the right end of the adjustment plate (7) is slidably connected to the positioning box (71), the lower end of the adjustment plate (7) is threadedly installed with a positioning pin (72), the upper end of the positioning pin (72) is fitted and connected to the adjustment plate (7), and the lower end of the positioning pin (72) is fixedly installed with a rotating handle.

5. The anti-slip and positioning mechanism for a sanding belt machine according to claim 1, characterized in that: The right end of the mounting shaft seat (8) is detachably connected to the adjustment plate (7) through a bolt, and the left end of the mounting shaft seat (8) is designed in a U-shaped structure. The upper and lower ends of the main shaft (9) are both equipped with bearing seats (91), and the two bearing seats (91) are detachably connected to the upper and lower ends of the mounting shaft seat (8).

6. The anti-slip and positioning mechanism for a sanding belt machine according to claim 1, characterized in that: The anti-skid component includes a groove (10), the outer side of the surface of the driving wheel (4) is provided with a groove (10), the grooves (10) are distributed in a ring array, the inner side of the groove (10) is provided with a sleeve (11), the surface of the sleeve (11) is provided with a rubber sleeve, the upper and lower ends of the sleeve (11) are slidably installed with a movable rod (12), and the surface of the movable rod (12) is fixedly installed with a blocking piece (13).

7. The anti-slip and positioning mechanism for a sanding belt machine according to claim 1, characterized in that: One end of the two movable rods (12) extends to the outside of the sleeve (11), and the other ends of the two movable rods (12) are movably connected through a spring. The upper and lower ends of the surface of the sleeve (11) are both provided with guide grooves (14), and the guide grooves (14) and the blocking piece (13) are slidably connected.

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