A grinding machine for processing rosewood furniture in woodworking

Abstract

The present invention discloses a grinding machine for processing rosewood furniture in woodworking, which comprises a base, a mounting frame, two hydraulic cylinders and two electric telescopic rods. The mounting frame is fixed on the base. The two hydraulic cylinders are fixed on the inner top of the mounting frame. The output ends of the two hydraulic cylinders are jointly and fixedly connected with a U-shaped plate. There are four positioning mechanisms between the second T-shaped block and the first T-shaped block. A plurality of driven rollers are installed at the upper end of the middle part of the base. Limiting mechanisms are arranged on both the left and right sides of the plurality of driven rollers. Four supporting legs are fixedly connected to the bottom of the base. A dust removal mechanism is arranged between the first T-shaped block and the upper end of the mounting frame. The structure of the present invention is reasonable, which is convenient for disassembling the sandpaper, and thus convenient for replacing the sandpaper. The operation is convenient and simple. It can also stably limit the wooden board to be ground to ensure that it will not move during grinding, and can be applicable to wooden boards of different sizes, with good practicability.

Description

Technical Field

[0001] The present invention relates to the technical field of furniture processing, and particularly relates to a grinding machine for processing rosewood furniture in woodworking. Background Art

[0002] During the processing of rosewood furniture, it is necessary to polish the surface of the furniture to make it smooth, and then perform subsequent operations such as painting. Only in this way can the furniture made be more beautiful and textured. However, there are still the following drawbacks in its actual use:

[0003] At present, the grinding machines used for grinding rosewood furniture all use sandpaper for grinding. One drawback of using sandpaper for grinding is that different grit sandpapers need to be frequently replaced. Moreover, for some grinding machines made using the conveyor belt principle (using rollers to drive strip-shaped sandpaper to rotate to grind the surface of the furniture), it is inconvenient to replace the sandpaper, resulting in low grinding efficiency. Therefore, we designed a grinding machine for processing rosewood furniture in woodworking to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies existing in the prior art, and a grinding machine for processing rosewood furniture in woodworking is proposed. It is convenient to disassemble the sandpaper, and thus convenient to replace the sandpaper. The operation is convenient and simple. It can also stably limit the wooden board to be ground to ensure that it will not move during grinding, and can be applicable to wooden boards of different sizes, with good practicability.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solution:

[0006] A grinding machine for processing rosewood furniture in woodworking, including a base, a mounting frame, two hydraulic cylinders and two electric telescopic rods. The mounting frame is fixed on the base. The two hydraulic cylinders are fixed on the inner top of the mounting frame. The output ends of the two hydraulic cylinders are jointly fixedly connected to a U-shaped plate. The two electric telescopic rods are respectively fixed on the left and right inner walls of the U-shaped plate. A first T-shaped block is fixedly connected between the output ends of the two electric telescopic rods. Three T-shaped grooves are vertically penetrated through the first T-shaped block. Second T-shaped blocks are installed in all three T-shaped grooves. Sandpapers are placed between the three second T-shaped blocks and the T-shaped grooves. Four positioning mechanisms are provided between the second T-shaped blocks and the first T-shaped block. A plurality of driven rollers are installed at the upper end of the middle part of the base. Limiting mechanisms are provided on both the left and right sides of the plurality of driven rollers. Four support legs are fixedly connected to the bottom of the base. A dust removal mechanism is provided between the first T-shaped block and the upper end of the mounting frame.

[0007] Preferably, a handle is fixedly connected to the upper end of the second T-shaped block, and the bottom of the second T-shaped block extends out of the T-shaped groove.

[0008] Preferably, the grit sizes of the three sandpapers increase sequentially from front to back.

[0009] Preferably, the positioning mechanism includes an annular block on the first T-shaped block. The inner ring of the annular block is provided with a T-shaped block that is slidably connected thereto. A spring is sleeved on the T-shaped block, and both ends of the spring are fixedly connected to the T-shaped block and the annular block respectively. The T-shaped block abuts against the upper end of the second T-shaped block.

[0010] Preferably, the limiting mechanism includes a first screw fixedly connected to the inner wall of the mounting frame. A threaded cylinder is sleeved on the outer portion of the first screw and is threadedly connected thereto. The other end inner wall of the threaded cylinder is threadedly connected to a second screw. The end of the second screw opposite to the threaded cylinder is fixedly connected to a clamping plate, and the clamping plate abuts against the upper end of the base.

[0011] Preferably, the thread directions of the first screw and the second screw are opposite.

[0012] Preferably, the dust removal mechanism includes a negative pressure fan fixed on the mounting frame. The air inlet end of the negative pressure fan is connected to a first connecting pipe. The other end of the first connecting pipe is fixedly connected to a second connecting pipe that is communicated therewith. Four rows of dust suction hole groups are provided through the first T-shaped block, and the four rows of dust suction hole groups are all connected to the second connecting pipe through a third connecting pipe. A collection box is fixedly connected to the mounting frame, and the air outlet end of the negative pressure fan is connected to the collection box through a conveying pipe.

[0013] Preferably, the four rows of dust suction hole groups and the three second T-shaped blocks are staggered, and each row of dust suction hole groups is composed of a plurality of dust suction holes.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. Under the action of the driven roller, it is convenient for the staff to push the wooden board to move. Under the limitation of the clamping plate, it is ensured that the wooden board will not shift during movement; by controlling the distance between the two clamping plates, wooden boards of different widths can be limited, and the practicability is good.

[0016] 2. With the cooperation of the first T-shaped block, the second T-shaped block, the T-shaped groove and the positioning mechanism, it is convenient to remove the second T-shaped block and the sandpaper, the operation is convenient, and it is also convenient to install and position the sandpaper. Moreover, the stability after installation is sufficient, simple and fast, improving work efficiency.

[0017] 3. By setting three sandpapers with different grit sizes, the fineness of the mahogany board during grinding becomes higher and higher, so that it is not necessary to replace sandpapers with different grit sizes, greatly improving the grinding efficiency of the mahogany board.

[0018] 4. Through the dust suction mechanism, the dust left on the rosewood board after grinding can be removed and collected, which brings convenience to the staff and does not cause powder to fly at the grinding site during grinding.

[0019] In summary, the structure of the present invention is reasonable, which is convenient for disassembling the sandpaper, and then convenient for replacing the sandpaper. The operation is convenient and simple. It can also stably limit the wooden board to be ground to ensure that it does not move during grinding, and can be applied to wooden boards of different sizes, with good practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of a grinding machine for processing rosewood furniture in woodworking proposed by the present invention;

[0021] Figure 2 is Figure 1 an enlarged view of the structure at A in

[0022] Figure 3 is a partial structural side sectional view of a grinding machine for processing rosewood furniture in woodworking proposed by the present invention.

[0023] In the figure: 1 base, 2 mounting frame, 3 hydraulic cylinder, 4 U-shaped plate, 5 electric telescopic rod, 6 first T-shaped block, 7 T-shaped groove, 8 second T-shaped block, 9 sandpaper, 10 support leg, 11 driven roller, 12 first screw rod, 13 threaded cylinder, 14 second screw rod, 15 handle, 16 I-shaped block, 17 annular block, 18 spring, 19 clamping plate, 20 negative pressure fan, 21 first connecting pipe, 22 conveying pipe, 23 collection box, 24 second connecting pipe, 25 third connecting pipe, 26 dust suction hole group. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0025] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0026] Refer to Figures 1-3A sanding machine for woodworking mahogany furniture comprises a base 1, a mounting frame 2, two hydraulic cylinders 3 and two electric telescopic rods 5. The mounting frame 2 is U-shaped; the mounting frame 2 is fixed on the base 1, and the two hydraulic cylinders 3 are fixed on the inner top of the mounting frame 2. The output ends of the two hydraulic cylinders 3 are commonly fixedly connected with a U-shaped plate 4, and the two electric telescopic rods 5 are respectively fixed on the left and right inner walls of the U-shaped plate 4; the U-shaped plate 4 can be moved downward by the two hydraulic cylinders 3, and then the sandpaper 9 can be moved downward to counteract the wooden board; the working state of the two electric telescopic rods 5 is that one is extended and the other is recovered, so that the reciprocating motion of the U-shaped plate 4 can be realized, and then the reciprocating motion of the sandpaper 9 can be realized, and the wooden board can be polished, and the moving stroke of the two electric telescopic rods 5 is the same, which is the prior art.

[0027] A first T-block 6 is fixedly connected between the output ends of the two electric telescopic rods 5. Three T-slots 7 are provided through the first T-block 6 from top to bottom. Second T-blocks 8 are installed in the three T-slots 7. A handle 15 is fixedly connected to the upper end of the second T-block 8. The second T-block 8 can be pulled upward by the handle 15 to facilitate the removal of sandpaper 9; and the bottom of the second T-block 8 extends out of the T-slot 7 to prevent the first T-block 6 from contacting the wooden board; sandpaper 9 is placed between the three second T-blocks 8 and the T-slots 7. The grits of the three sandpapers 9 increase successively from front to back. Through one grinding work, the grinding accuracy of the wooden board can be gradually improved, and there is no need to replace sandpaper 9 with different grits for grinding. The practicability is good and the efficiency of grinding the wooden board is improved.

[0028] Four positioning mechanisms are provided between the second T-block 8 and the first T-block 6, and the positioning mechanisms include an annular block 17 on the first T-block 6, the inner ring of the annular block 17 is penetrated by an I-shaped block 16 slidably connected thereto, and the I-shaped block 16 is an inverted I-shaped block; a spring 18 is sleeved on the I-shaped block 16, and the two ends of the spring 18 are respectively fixedly connected to the I-shaped block 16 and the annular block 17, and the I-shaped block 16 is against the upper end of the second T-block 8. The second T-block 8 can be limited by the I-shaped block 16, so that it will not leave the T-slot 7 when driving the sandpaper 9 for grinding.

[0029] A plurality of driven rollers 11 are installed at the upper middle end of the base 1, and the wooden board is placed on the driven rollers 11, which makes it convenient for the staff to push the wooden board to move at one end; limiting mechanisms are provided on both sides of the left and right sides of the plurality of driven rollers 11, and four supporting legs 10 are fixedly connected to the bottom of the base 1, and the base 1 can be supported by the four supporting legs 10.

[0030] Specifically, the limiting mechanism includes a first screw rod 12 fixedly connected to the inner wall of the mounting frame 2. A threaded cylinder 13 is sleeved outside the first screw rod 12 and is threadedly connected thereto. The inner wall of the other end of the threaded cylinder 13 is threadedly connected with a second screw rod 14. A clamping plate 19 is fixedly connected to the end of the second screw rod 14 opposite to the threaded cylinder 13. The clamping plate 19 abuts against the upper end of the base 1. The thread directions of the first screw rod 12 and the second screw rod 14 are opposite, so the inner wall of the threaded cylinder 13 is threadedly arranged with the first screw rod 12 and the second screw rod 14.

[0031] A dust removal mechanism is provided between the first T-shaped block 6 and the upper end of the mounting frame 2. The dust removal mechanism includes a negative pressure fan 20 fixed on the mounting frame 2. The air inlet end of the negative pressure fan 20 is connected with a first connecting pipe 21. The other end of the first connecting pipe 21 is fixedly connected with a second connecting pipe 24 communicated therewith. Four rows of dust suction hole groups 26 are provided through the first T-shaped block 6. The four rows of dust suction hole groups 26 are all connected with the second connecting pipe 24 through a third connecting pipe 25. A collection box 23 is fixedly connected to the mounting frame 2. The air outlet end of the negative pressure fan 20 is connected with the collection box 23 through a conveying pipe 22; the four rows of dust suction hole groups 26 and the three second T-shaped blocks 8 are staggered, and each row of dust suction hole groups 26 is composed of a plurality of dust suction holes.

[0032] In the present invention, when polishing a wooden board, the staff can place the wooden board on the base 1 and on the driven roller 11, and then manually rotate the threaded cylinder 13. Since the clamping plate 19 cannot rotate under the limitation of the base 1 and the thread directions of the first screw rod 12 and the second screw rod 14 are opposite, when the threaded cylinder 13 rotates, the movement of the clamping plate 19 can be realized, so that the two clamping plates 19 both abut against the two sides of the wooden board. It should be noted that abutting against the wooden board does not mean clamping, and the wooden board can still move normally; by controlling the distance between the two clamping plates 19, wooden boards of different widths can be limited, and the practicability is better.

[0033] Then the staff starts the two hydraulic cylinders 3 to move the U-shaped plate 4 downward, and then the sandpaper 9 can be moved downward to be close to the wooden board. Then the two electric telescopic rods 5 are started. Under the action of the two electric telescopic rods 5, the reciprocating movement of the first T-shaped block 6, the second T-shaped block 8 and the sandpaper 9 can be realized. Then the hydraulic cylinder 3 is controlled to make the sandpaper 9 abut against the upper end of the wooden board. The wooden board can be polished by the sandpaper 9. By providing three sandpapers 9 with different mesh numbers, the fineness of the mahogany wooden board is getting higher and higher, so there is no need to replace sandpapers 9 with different mesh numbers, which greatly improves the polishing efficiency of the mahogany wooden board; the staff can slowly push the wooden board to move longitudinally, and then the upper end surface of the wooden board can be polished comprehensively. Under the action of the driven roller 11, it is convenient for the staff to push the wooden board to move. Under the limitation of the clamping plate 19, it is ensured that the wooden board will not shift during the movement.

[0034] Before sanding the wooden board, first turn on the negative pressure fan 20. After the negative pressure fan 20 works, under the action of the first connecting pipe 21, the second connecting pipe 24 and the third connecting pipe 25, a negative pressure is generated at the bottom orifice of the dust suction hole group 26, so that the powder generated during sanding can be sucked away and conveyed into the collection box 23 through the conveying pipe 22, thus realizing the collection of dust on the wooden board; since the four rows of dust suction hole groups 26 and the three second T-shaped blocks 8 are staggered, the wooden board during sanding can be comprehensively dusted, preventing dust from flying and eliminating the need for subsequent cleaning of the sanding board, with good practicality.

[0035] If the sandpaper 9 needs to be replaced, the staff can manually pull the I-shaped block 16 so that it does not abut against the upper end of the second T-shaped block 8. Then the staff manually pulls the handle 15 upward, and then the second T-shaped block 8 can be taken out, and thus the sandpaper 9 can be removed, facilitating the replacement of the sandpaper 9; place the new sandpaper 9 on the notch of the T-shaped groove 7, then the staff places the second T-shaped block 8 on the sandpaper 9 and slowly presses it downward into the T-shaped groove 7 until the second T-shaped block 8 stops moving. Then release the I-shaped block 16. Under the action of the spring 18, the I-shaped block 16 resets and abuts against the upper end of the second T-shaped block 8, thus realizing the replacement of the sandpaper 9. The operation is simple and convenient, improving the sanding efficiency of the wooden board.

[0036] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, should be covered by the protection scope of the present invention.

Claims

1. A grinding machine for processing rosewood furniture in woodworking, comprising a base (1), a mounting frame (2), two hydraulic cylinders (3) and two electric telescopic rods (5). The mounting frame (2) is fixed on the base (1). The two hydraulic cylinders (3) are fixed on the inner top of the mounting frame (2). The output ends of the two hydraulic cylinders (3) are fixedly connected together with a U-shaped plate (4). The two electric telescopic rods (5) are respectively fixed on the left and right inner walls of the U-shaped plate (4), and it is characterized in that, A first T-shaped block (6) is fixedly connected between the output ends of the two electric telescopic rods (5). Three T-shaped grooves (7) are vertically penetrated through the first T-shaped block (6). Sandpapers (9) are placed between each of the three second T-shaped blocks (8) installed in the three T-shaped grooves (7) and the T-shaped grooves (7). Four positioning mechanisms are provided between the second T-shaped blocks (8) and the first T-shaped block (6). A plurality of driven rollers (11) are installed at the upper end of the middle part of the base (1). Limiting mechanisms are provided on both the left and right sides of the plurality of driven rollers (11). Four support legs (10) are fixedly connected to the bottom of the base (1). A dust removal mechanism is provided between the first T-shaped block (6) and the upper end of the mounting frame (2). A handle (15) is fixedly connected to the upper end of the second T-shaped block (8), and the bottom of the second T-shaped block (8) extends out of the T-shaped groove (7). The sandpaper meshes of the three sandpapers (9) increase sequentially from front to back. The positioning mechanism includes an annular block (17) on the first T-shaped block (6). A T-shaped block (16) that is slidably connected to the annular block (17) is penetrated through the inner ring of the annular block (17). A spring (18) is sleeved on the T-shaped block (16). The two ends of the spring (18) are respectively fixedly connected to the T-shaped block (16) and the annular block (17). The T-shaped block (16) abuts against the upper end of the second T-shaped block (8). The limiting mechanism includes a first screw rod (12) fixedly connected to the inner wall of the mounting frame (2). A threaded cylinder (13) that is threadedly connected to the first screw rod (12) is sleeved on the outer part of the first screw rod (12). A second screw rod (14) is threadedly connected to the inner wall of the other end of the threaded cylinder (13). A clamping plate (19) is fixedly connected to the end of the second screw rod (14) that is opposite to the threaded cylinder (13). The clamping plate (19) abuts against the upper end of the base (1). The thread directions of the first screw rod (12) and the second screw rod (14) are opposite. The dust removal mechanism includes a negative pressure fan (20) fixed to the mounting frame (2). An air inlet end of the negative pressure fan (20) is connected to a first connecting pipe (21). The other end of the first connecting pipe (21) is fixedly connected to a second connecting pipe (24) that is communicated with the first connecting pipe (21). Four rows of dust suction hole groups (26) are penetrated through the first T-shaped block (6). The four rows of dust suction hole groups (26) are all connected to the second connecting pipe (24) through a third connecting pipe (25). A collection box (23) is fixedly connected to the mounting frame (2). An air outlet end of the negative pressure fan (20) is connected to the collection box (23) through a conveying pipe (22). The four rows of dust suction hole groups (26) and the three second T-shaped blocks (8) are staggered, and each row of dust suction hole groups (26) is composed of a plurality of dust suction holes.

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