Wood sanding machine

Abstract

The utility model discloses a wood sander, which relates to the technical field of sanders and comprises a base, a mounting frame is fixedly mounted in the middle of the top end of the base, a bearing table is arranged on the inner side of the mounting frame, a positioning mechanism is mounted on a front upright post of the mounting frame in a matched manner and comprises a limiting seat, the limiting seat is of a C-shaped structure, and a positioning mechanism is mounted on the bearing table. And a positioning plate is movably mounted on the inner side of the limiting seat. According to the design scheme, through the design that the limiting base is installed on the stand column of the installation frame, the limiting base is fixed to the installation frame through the locking assembly, when a plate is ground for the first time, the positioning plate abuts against the bottom wall of the limiting base, and therefore the lowest position of the bearing table is limited; the bearing table is jacked upwards through the jacking mechanism, the positioning plate abuts against the top wall of the limiting base, and therefore the highest position of the bearing table is limited, it is guaranteed that the thicknesses of plates of the same batch are consistent, and follow-up production of furniture is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of sanding machine technology, and in particular to a wood sanding machine. Background Technology

[0002] In the furniture manufacturing industry, polishing wood is a common processing step. In polishing wood panels, the panel is first placed directly on a work surface, then manually pushed horizontally across the surface. A rotating sanding roller sands the horizontally moving panel. Traditionally, sanding rollers are fixed in position, making it inconvenient to adjust their location and thus the relative position between the panel and the roller. This limits the flexibility of sanding wood of varying thicknesses.

[0003] CN 218427346 U discloses a sander for wood processing, comprising: a support base with a rotating support table at its top, one side of which is rotatably connected to the top of the support base via a trunnion seat; an adjustable diagonal brace device connected between the support base and the rotating support table, the adjustable diagonal brace device serving as a diagonal brace for the rotating support table; an elastic clamping mechanism connected to the upper surface of the rotating support table; and a wood sanding mechanism connected to the top of the support base, with a motor mounted on the top of the wood sanding mechanism. The sander utilizes the combination of the rotating support table and the adjustable diagonal brace device. The diagonal brace plate enables the rotating support table to rotate under its support until the wood board contacts the sanding roller. The sander can then be adjusted by a translational propulsion mechanism to allow wood boards of different thicknesses to contact the sanding roller, making the sanding process more flexible.

[0004] However, when the aforementioned sander needs to sand both sides of the board, the board thickness will become thinner after the first sanding. Therefore, the user needs to adjust the position of the rotating support table multiple times. Since the tilt angle of the rotating support table is adjusted manually, the user cannot guarantee that the rotating support table can be adjusted to the same position every time, resulting in the thickness of the boards in a batch being inconsistent, which is not conducive to the subsequent production of furniture. Utility Model Content

[0005] In order to overcome the above-mentioned defects in the existing technology, this utility model provides a wood sanding machine.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: a wood sander includes a base, a mounting frame is fixedly installed at the top center of the base, a sanding component is installed at the top of the mounting frame, a support platform is provided on the inner side of the mounting frame, the support platform is movably mounted on the base, a lifting mechanism is installed inside the base, the lifting mechanism is used to drive the support platform to rise and fall on the base, a positioning mechanism is installed on the front column of the mounting frame, the positioning mechanism includes a limiting seat, the limiting seat is a C-shaped structure, a positioning plate is movably installed on the inner side of the limiting seat, the positioning plate is fixedly mounted on the support platform, and a locking component is installed at the end of the limiting seat away from the support platform.

[0007] Furthermore, the locking assembly includes a connecting seat and a locking plate. An installation groove is provided on the front column of the mounting bracket. The connecting seat is slidably installed in the installation groove. The limiting seat is fixedly installed at the end of the connecting seat. Guide grooves are provided on the left and right sides of the installation groove. The locking plate is slidably installed in the guide groove. A locking element is rotatably installed in the middle of the locking plate. The locking element is fitted and installed at the end of the connecting seat away from the support platform.

[0008] Furthermore, a mounting hole is provided at the top center of the positioning plate, and a first spring is fixedly installed in the mounting hole. The first spring abuts against the top side wall of the limiting seat, and connecting rods are fixedly installed at both ends of the limiting seat. The connecting rods are slidably connected to the positioning plate.

[0009] Furthermore, the lifting mechanism includes a bidirectional screw, a groove is provided at the top of the base, the bidirectional screw is rotatably mounted at the bottom of the groove, screw nuts are fitted at both ends of the bidirectional screw, first slide blocks are fixedly mounted at the front and rear ends of the screw nuts, the first slide blocks are slidably mounted on the first guide rod, the first guide rod is fixedly mounted at the bottom of the groove, the left end of the bidirectional screw extends to the outside of the base, an adjustment knob is fixedly mounted at the left end of the bidirectional screw, first support seats are fixedly mounted at the top ends of the two sets of screw nuts respectively, support rods are hingedly mounted on the first support seats, and second support seats are hingedly mounted at the other end of the support rods. The second support seats are fixedly mounted at the bottom of the support platform, and the two sets of support rods are symmetrically arranged.

[0010] Furthermore, a second slide block is fixedly installed at each of the four ends of the support platform, and a second guide rod is fixedly installed on the second slide block. The second guide rod is fixedly installed on the base.

[0011] Furthermore, the sanding assembly includes a sanding roller, which is rotatably mounted on the top of the mounting frame. A drive motor is fixedly mounted on a column on the side of the mounting frame away from the positioning mechanism, and the power output shaft of the drive motor is connected to the rotating shaft of the sanding roller.

[0012] Furthermore, a fixing frame is provided on the left side of the mounting frame, the fixing frame is fixedly installed on the support platform, a pressure plate is provided at the bottom of the fixing frame, a number of third guide rods are fixedly installed on the top of the pressure plate, a connecting platform is provided at the bottom of the third guide rod, a second spring is fitted on the third guide rod, and the two ends of the second spring are fixedly connected to the fixing frame and the connecting platform respectively.

[0013] The beneficial effects of this utility model are that, through the design of installing a limiting seat on the upright of the mounting frame, and fixing the limiting seat on the mounting frame by a locking component, during the first grinding of the board, the positioning plate abuts against the bottom wall of the limiting seat, thereby limiting the lowest position of the support platform. During the flipping and grinding of the board, the lifting mechanism lifts the support platform upward, and the positioning plate abuts against the top wall of the limiting seat, thereby limiting the highest position of the support platform. This ensures that the thickness of the boards in the same batch is consistent, which is beneficial to the subsequent production of furniture. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is the front view of the present invention;

[0017] Figure 3 This is the left view of the present invention;

[0018] Figure 4 for Figure 2 Schematic diagram of the cross-sectional structure along the AA direction;

[0019] Figure 5 for Figure 3 Schematic diagram of the cross-sectional structure in the middle BB direction;

[0020] Figure 6 for Figure 4 A magnified view of a portion of region C in the middle;

[0021] Figure 7 This is a schematic diagram of the positioning mechanism of this utility model.

[0022] In the diagram: 1. Base, 2. Mounting bracket, 3. Support platform, 4. Limiting seat, 5. Positioning plate, 51. Mounting hole, 6. Connecting seat, 7. Locking plate, 8. Mounting groove, 9. Guide groove, 10. Locking element, 11. First spring, 12. Connecting rod, 13. Double-acting screw, 14. Groove, 15. Screw nut, 16. First slide, 17. First guide rod, 18. Adjusting knob, 19. First support seat, 20. Support rod, 21. Second support seat, 22. Second slide, 23. Second guide rod, 24. Sanding roller, 25. Drive motor, 26. Fixing bracket, 27. Pressure plate, 28. Third guide rod, 281. Connecting platform, 29. Second spring. Detailed Implementation

[0023] To more clearly illustrate the technical solution of this utility model, the following description is made in conjunction with the accompanying drawings. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings and embodiments without creative effort, and all of them fall within the protection scope of this utility model.

[0024] according to Figure 1-7 As shown, a wood sander includes a base 1. A mounting frame 2 is fixedly installed at the top center of the base 1. A sanding component is installed at the top of the mounting frame 2. A support platform 3 is provided on the inner side of the mounting frame 2. The support platform 3 is movably mounted on the base 1. A lifting mechanism is installed inside the base 1 to drive the support platform 3 to move up and down on the base 1. A positioning mechanism is installed on the front column of the mounting frame 2. The positioning mechanism includes a limiting seat 4, which has a C-shaped structure. A positioning plate 5 is movably installed on the inner side of the limiting seat 4. The positioning plate 5 is fixedly mounted on the support platform 3 by bolts. A locking component is installed at the end of the limiting seat 4 away from the support platform 3.

[0025] In this embodiment, the lifting mechanism includes a bidirectional screw 13. A groove 14 is formed at the top of the base 1. The bidirectional screw 13 is rotatably mounted at the bottom of the groove 14 via a bearing seat. Screw nuts 15 are threaded onto both ends of the bidirectional screw 13. First slide blocks 16 are fixedly mounted at the front and rear ends of the screw nuts 15. The first slide blocks 16 are slidably mounted on a first guide rod 17. The first guide rod 17 is fixedly mounted at the bottom of the groove 14 via a bracket. The left end of the bidirectional screw 13 extends to the outside of the base 1. An adjusting knob 18 is fixedly mounted on the left end of the bidirectional screw 13. First support seats 19 are fixedly mounted at the top ends of the two sets of screw nuts 15. Support rods 20 are hingedly mounted on the first support seats 19. The other end of the support rod 0 is hinged to a second support base 21, which is fixedly installed at the bottom of the support platform 3. The two sets of support rods 20 are symmetrically arranged. The operator rotates the adjustment knob 18 to drive the bidirectional screw 13 to rotate. Under the action of the bidirectional screw 13, the two sets of screw nuts 15 move closer or further away from each other. The bottom end of the support rod 20 moves with the screw nut 15, thereby adjusting the lifting height of the support rod 20 on the support platform 3. The four ends of the support platform 3 are fixedly installed with second slides 22. The second guide rods 23 are fixedly installed on the second slides 22. The second guide rods 23 are fixedly installed on the base 1. The movement direction of the support platform 3 is restricted by the second guide rods 23, so that the support platform 3 rises or falls along the second guide rods 23 under the action of the support rods 20.

[0026] In this embodiment, the locking assembly includes a connecting seat 6 and a locking plate 7. An installation groove 8 is provided on the front column of the mounting frame 2. The connecting seat 6 is slidably installed in the installation groove 8. The limiting seat 4 is welded to the end of the connecting seat 6. Guide grooves 9 are provided on the left and right sides of the installation groove 8. The locking plate 7 is slidably installed in the guide grooves 9. A locking element 10 is rotatably installed in the middle of the locking plate 7. The locking element 10 is threadedly installed on the end of the connecting seat 6 away from the support platform 3. By tightening the locking element 10, the locking element 10 pushes the locking plate 7 to press tightly against the side wall of the mounting frame 2, thereby fixing the position of the limiting seat 4. When the support platform 3 moves, it will drive the positioning plate 5 to move synchronously. The limiting seat 4 limits the positioning plate 5, ensuring that the height of the support platform 3 is the same each time it is adjusted.

[0027] In this embodiment, a mounting hole 51 is provided at the top center of the positioning plate 5. A first spring 11 is fixedly installed in the mounting hole 51. The first spring 11 abuts against the top side wall of the limiting seat 4. Connecting rods 12 are fixedly installed at both ends of the limiting seat 4. The connecting rods 12 are slidably connected to the positioning plate 5. The connecting rods 12 allow the positioning plate 5 to move up and down only inside the limiting seat 4. When the height of the bearing platform 3 is adjusted for the first time, the locking member 10 is loosened to allow the limiting seat 4 to move with the positioning plate 5. Under the action of the first spring 11, the positioning plate 5 abuts against the bottom wall of the limiting seat 4. After the height of the bearing platform 3 is adjusted, the locking member 10 is tightened to fix the position of the limiting seat 4, thereby limiting the current position of the bearing platform 3 to the lowest point of the bearing platform 3.

[0028] In this embodiment, the sanding assembly includes a sanding roller 24, which is rotatably mounted on the top of the mounting frame 2. A drive motor 25 is fixedly mounted on the column of the mounting frame 2 away from the positioning mechanism via a motor bracket. The power output shaft of the drive motor 25 is connected to the rotating shaft of the sanding roller 24. The drive motor 25 drives the sanding roller 24 to rotate counterclockwise, so that the sanding roller 24 rotates to sand the board.

[0029] In this embodiment, a fixing frame 26 is provided on the left side of the mounting frame 2. The fixing frame 26 is fixedly installed on the support platform 3. A pressure plate 27 is provided at the bottom of the fixing frame 26. Several sets of third guide rods 28 are fixedly installed on the top of the pressure plate 27. Preferably, there are two sets of third guide rods 28. A connecting platform 281 is provided at the bottom of the third guide rod 28. A second spring 29 is fitted on the third guide rod 28. The two ends of the second spring 29 are fixedly connected to the fixing frame 26 and the connecting platform 281, respectively. When the plate passes under the fixing frame 26, the plate pushes the pressure plate 27 upward. The connecting platform 281 rises simultaneously and tightens the second spring 29. Under the elastic force of the second spring 29, the pressure plate 27 presses the plate in the opposite direction, thereby improving the stability of the plate when it moves.

[0030] In use, the height of the support platform 3 is first adjusted according to the thickness of the sheet material to be processed. After the height of the support platform 3 is adjusted, the locking member 10 is tightened. The locking member 10 pushes the locking plate 7 to fit tightly against the side wall of the mounting bracket 2, thereby fixing the position of the limiting seat 4. At this time, the positioning plate 5 abuts against the bottom wall of the limiting seat 4 under the action of the first spring 11, thereby limiting the lowest position of the support platform 3. Then, the drive motor 25 is started, and the sheet material is pushed towards the sanding roller 24. The sanding roller 24 rotates to sand the top surface of the sheet material. After sanding, the material is then... The board is flipped 180° and refixed on the support platform 3. The adjustment knob 18 is rotated so that the bidirectional screw 13 drives the support rod 20 to lift the support platform 3. When the positioning plate 5 abuts against the top wall of the limiting seat 4, the support platform 3 cannot continue to rise under the action of the limiting seat 4. Then the board is pushed to the sanding roller 24 again. The sanding roller 24 rotates to sand the reverse side of the board. When processing the next batch of boards, the lowering or raising height of the support platform 3 is limited by the limiting seat 4 to ensure that the thickness of the boards in the same batch is consistent, which is beneficial to the subsequent production of furniture.

[0031] The above embodiments are merely exemplary embodiments of this utility model and are not intended to limit this utility model. The scope of protection of this utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this utility model within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this utility model.

Claims

1. A wood sander, comprising a base (1), characterized in that: A mounting bracket (2) is fixedly installed at the top center of the base (1). A sanding component is installed at the top of the mounting bracket (2). A support platform (3) is provided on the inner side of the mounting bracket (2). The support platform (3) is installed on the base (1) in a height-adjustable manner. A lifting mechanism is installed inside the base (1). The lifting mechanism is used to drive the support platform (3) to rise and fall on the base (1). A positioning mechanism is installed on the front column of the mounting bracket (2). The positioning mechanism includes a limiting seat (4). The limiting seat (4) has a C-shaped structure. A positioning plate (5) is movably installed on the inner side of the limiting seat (4). The positioning plate (5) is fixedly installed on the support platform (3). A locking component is installed on the end of the limiting seat (4) away from the support platform (3).

2. A wood sander according to claim 1, characterized in that, The locking assembly includes a connecting seat (6) and a locking plate (7). The front column of the mounting bracket (2) is provided with a mounting groove (8). The connecting seat (6) is slidably installed in the mounting groove (8). The limiting seat (4) is fixedly installed at the end of the connecting seat (6). The left and right sides of the mounting groove (8) are provided with guide grooves (9). The locking plate (7) is slidably installed in the guide groove (9). A locking element (10) is rotatably installed in the middle of the locking plate (7). The locking element (10) is fitted and installed at the end of the connecting seat (6) away from the bearing platform (3).

3. A wood sander according to claim 2, characterized in that, The top center of the positioning plate (5) is provided with an installation hole (51), and a first spring (11) is fixedly installed in the installation hole (51). The first spring (11) abuts against the top side wall of the limiting seat (4). Connecting rods (12) are fixedly installed at both ends of the limiting seat (4), and the connecting rods (12) are slidably connected to the positioning plate (5).

4. A wood sander according to claim 1, characterized in that, The lifting mechanism includes a bidirectional screw (13), and a groove (14) is provided at the top of the base (1). The bidirectional screw (13) is rotatably installed at the bottom of the groove (14). Screw nuts (15) are fitted at both ends of the bidirectional screw (13). First slide blocks (16) are fixedly installed at the front and rear ends of the screw nuts (15). The first slide blocks (16) are slidably installed on the first guide rod (17). The first guide rod (17) is fixedly installed at the bottom of the groove (14). The left end of the rod (13) extends to the outside of the base (1). An adjustment knob (18) is fixedly installed on the left end of the bidirectional screw (13). The top ends of the two sets of screw nuts (15) are respectively fixedly installed with first support seats (19). A support rod (20) is hinged on the first support seat (19). A second support seat (21) is hinged on the other end of the support rod (20). The second support seat (21) is fixedly installed at the bottom of the bearing platform (3). The two sets of support rods (20) are symmetrically arranged.

5. A wood sander according to claim 4, characterized in that, The support platform (3) has a second slide (22) fixedly installed at each of its four ends. The second slide (22) has a second guide rod (23) fixedly installed on it. The second guide rod (23) is fixedly installed on the base (1).

6. A wood sander according to claim 1, characterized in that, The sanding assembly includes a sanding roller (24), which is rotatably mounted on the top of the mounting frame (2). A drive motor (25) is fixedly mounted on the column on the side of the mounting frame (2) away from the positioning mechanism. The power output shaft of the drive motor (25) is connected to the rotating shaft of the sanding roller (24).

7. A wood sander according to claim 6, characterized in that, The mounting bracket (2) has a fixing bracket (26) on its left side. The fixing bracket (26) is fixedly installed on the support platform (3). The bottom of the fixing bracket (26) is provided with a pressure plate (27). Several sets of third guide rods (28) are fixedly installed on the top of the pressure plate (27). The bottom end of the third guide rod (28) is provided with a connecting platform (281). A second spring (29) is fitted on the third guide rod (28). The two ends of the second spring (29) are fixedly connected to the fixing bracket (26) and the connecting platform (281) respectively.

Images