Hand-held primary and secondary saw

Abstract

The utility model discloses a handheld primary and secondary saw which comprises a first supporting plate, two pairs of first supporting columns are arranged on the first supporting plate, a second supporting plate is installed on the two pairs of first supporting columns in a sliding mode, a first motor is arranged on the upper wall face of the second supporting plate, a primary saw blade is arranged at the driving end of the first motor, and a secondary saw blade is arranged at the driving end of the primary saw blade. A lifting bin is arranged on the second supporting plate, a second motor is arranged on the lifting bin, a gear is arranged at the driving end of the second motor, a groove is formed in the lifting bin, the gear is rotationally arranged in the groove of the lifting bin, a rack is arranged on the first supporting plate, and the gear is meshed with the rack. The utility model relates to the technical field of wood processing, and the dust removal mechanism can collect sawdust splashed during wood processing, prevent the sawdust from being inhaled into lungs by workers, prevent the workers from suffering from pneumoconiosis, and guarantee the body health of the workers.

Description

Technical Field

[0001] The utility model relates to the technical field of wood processing, in particular to a portable sub-saw. Background Art

[0002] The mother-and-child saw is a cutting device commonly used in home decoration. The mother-and-child saw uses the cooperation of the saw blades of the mother saw and the child saw to cut the board. The saw blade of the child saw is the auxiliary saw, which is mainly responsible for shallow cutting and drawing lines, and the saw blade of the mother saw is the main saw, which is mainly responsible for cutting. At present, the existing portable mother-and-child saws do not have dust removal devices. When processing wood, sawdust splashes and is inhaled into the lungs of workers, which may cause workers to get pneumoconiosis and affect their health. At the same time, when grooving the wooden board, the child saw rises and falls with the mother saw, which may cause the child saw to scratch the wooden board in the non-processing position, reducing the application range of the mother-and-child saw.

[0003] For example, the utility model patent with the publication number CN210616780U discloses a portable electric cutting saw, the rear part of the base plate is a main saw, a saw cut depth adjuster is arranged on the rear side of the main saw, a connecting piece is arranged on the front side, a motor support plate is fixed on the base plate on the front side of the main saw, the motor support plate is mounted on the base plate by a rotating bolt, the motor support plate is connected to the motor mounting plate by a rotating shaft, an auxiliary saw motor is installed on the rear side of the motor mounting plate, the rear side of the motor mounting plate is connected to the connecting piece by a connecting screw bolt, a saw blade connecting sleeve is sleeved on the motor shaft on one side of the motor mounting plate, an auxiliary saw blade is installed on the motor connecting sleeve, and saw cut grooves of equal width and in the same straight line are arranged on the lower part of the main saw blade and the auxiliary saw blade of the base plate. When the device processes wood, sawdust splashes and is inhaled into the lungs of the staff, which may cause the staff to suffer from pneumoconiosis and affect the health of the staff. At the same time, when the wooden board is slotted, the sub-saw rises and falls with the mother saw, which may cause the sub-saw to scratch the wooden board in the non-processing position, reducing the application range of the sub-mother saw. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a portable sub-saw, which solves the problem that when the existing sub-saw processes wood, sawdust splashes and is inhaled into the lungs of workers, which may cause the workers to suffer from pneumoconiosis and affect their health; at the same time, when grooving a wooden board, the sub-saw rises and falls with the main saw, which may cause the sub-saw to scratch the wooden board in the non-processing position, reducing the application range of the sub-saw.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a portable sub-saw comprises a first support plate, an arc block is provided on one side of the first support plate, two pairs of first support columns are provided on the first support plate, and second support plates are slidably installed on the two pairs of first support columns, a first motor is provided on the upper wall surface of the second support plate, a mother saw blade is provided on the driving end of the first motor, a third support plate is provided on the upper wall surface of the second support plate and located between the first motor and the mother saw blade, a first slide groove is provided on the third support plate, a transmission shaft of the first motor is movably installed in the first slide groove, a lifting warehouse is provided on the second support plate, a second motor is provided on the lifting warehouse, a gear is provided on the driving end of the second motor, a groove is provided on the lifting warehouse, and the gear is rotatably arranged in the groove of the lifting warehouse, a rack is provided on the first support plate, the gear and the rack are meshed, and a dust removal mechanism is provided on the first support plate.

[0006] Preferably, two pairs of second support columns are provided on the first support plate, and fourth support plates are movably mounted on the two pairs of second support columns, a third motor is provided on the upper wall surface of the fourth support plate, and a sub-saw blade is provided on the driving end of the third motor, a multi-stage electric telescopic rod is provided on the first support plate, and the fourth support plate is provided on the telescopic end of the multi-stage electric telescopic rod, a fifth support plate is provided on the upper wall surface of the first support plate and located between the third motor and the sub-saw blade, a second slide groove is provided on the fifth support plate, and the drive shaft of the third motor is provided in the second slide groove.

[0007] Preferably, the dust removal mechanism includes a protective shell, which is arranged on the upper wall surface of the first support plate, the mother saw blade and the sub-saw blade are arranged in the protective shell, a dust removal channel is arranged in the protective shell, a first dust removal port is arranged on the side of the sub-saw blade, a second dust removal port is arranged on the side of the mother saw blade, a dust removal bin is arranged on the upper wall surface of the first support plate, the dust removal channel is connected to the dust removal bin, a filter basket is slidably installed in the dust removal bin, a fourth motor is arranged in the dust removal bin, and fan blades are arranged on the driving end of the fourth motor.

[0008] Preferably, a mother saw bin is provided on the upper wall surface of the first support plate and located on the back side of the third support plate, the first motor and the rack are provided in the mother saw bin, a sub-saw bin is provided on the upper wall surface of the first support plate and located on the back side of the fifth support plate, and the third motor is provided in the sub-saw bin.

[0009] Preferably, a pair of grooves are respectively opened on the first support plate, and the main saw blade and the sub-saw blade are movably installed in the grooves of the first support plate respectively. An arc handle is provided on the upper wall surface of the first support plate and above the main saw bin, and a start button is provided in the arc handle.

[0010] Preferably, a pointer is provided on the second support plate, a scale is provided on the rack, and the pointer is movably provided on the scale.

[0011] Beneficial Effects

[0012] The portable saw provided by the utility model has the following beneficial effects:

[0013] This design drives the fourth motor to rotate, which drives the fan blades to rotate, thereby creating a certain vacuum environment in the dust removal chamber. The wood chips raised by the sub-saw blade and the main saw blade when processing wooden boards are sucked into the dust removal channel through the first dust removal port and the second dust removal port respectively, and then the wood chips are collected by the filter basket. The sawdust splashed during wood processing can be collected to prevent the sawdust from being inhaled into the lungs of the workers, thereby preventing the workers from getting pneumoconiosis and ensuring their health.

[0014] This design drives the second motor to rotate, which drives the gear to rotate, so that the lifting bin can be lifted and lowered, which drives the second support plate to be lifted and lowered, and then drives the mother saw blade to be lifted and lowered. The pointer is movably set on the scale. The staff can adjust the cutting depth by observing the position of the pointer on the scale, which increases the application range of the mother-and-child saw.

[0015] This design drives the multi-stage electric telescopic rod to extend and retract, driving the fourth support plate to rise and fall, causing the third motor to rise and fall, and then causing the sub-saw blade to rise and fall. The position of the sub-saw blade can be adjusted, and the sub-saw blade can be raised during the grooving of the wooden board to prevent the sub-saw blade from scratching the wooden board in the non-processing position, thereby reducing the cost of wood processing and increasing the application range of the sub-saw. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the protective shell of the utility model.

[0017] Figure 2 It is a schematic diagram of the whole of the utility model.

[0018] Figure 3 It is a schematic diagram of the filter basket of the present invention.

[0019] Figure 4 It is a schematic diagram of the fifth support plate and the third support plate of the utility model.

[0020] Figure 5 It is a schematic diagram of the sub-saw bin of the utility model.

[0021] Figure 6 It is a schematic diagram of the mother saw bin of the utility model.

[0022] In the figure: 1. protective shell; 2. dust removal channel; 3. arc block; 4. first dust removal port; 5. sub-saw blade; 6. mother saw blade; 7. second dust removal port; 8. first support plate; 9. start button; 10. arc handle; 11. second support column; 12. fourth support plate; 13. third motor; 14. fifth support plate; 15. third support plate; 16. filter basket; 17. dust removal bin; 18. fan blade; 19. fourth motor; 20. lifting bin; 21. rack; 22. gear; 23. second motor; 24. mother saw bin; 25. sub-saw bin; 26. scale; 27. pointer; 28. second slide; 29. ​​first slide; 30. multi-stage electric telescopic rod; 31. first support column; 32. second support plate; 33. first motor. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-6 The utility model provides a technical solution: a portable sub-master saw, comprising a first support plate 8, an arc block 3 is arranged on one side of the first support plate 8, two pairs of first support columns 31 are arranged on the first support plate 8, and second support plates 32 are slidably mounted on the two pairs of the first support columns 31, a first motor 33 is arranged on the upper wall of the second support plate 32, a mother saw blade 6 is arranged on the driving end of the first motor 33, and a third support plate 15 is arranged on the upper wall of the second support plate 32 and located between the first motor 33 and the mother saw blade 6. The third support plate 15 is provided with a first slide groove 29, the transmission shaft of the first motor 33 is movably installed in the first slide groove 29, the second support plate 32 is provided with a lifting bin 20, the lifting bin 20 is provided with a second motor 23, the driving end of the second motor 23 is provided with a gear 22, the lifting bin 20 is provided with a groove, the gear 22 is rotatably arranged in the groove of the lifting bin 20, the first support plate 8 is provided with a rack 21, the gear 22 and the rack 21 are meshed, and the first support plate 8 is provided with a dust removal mechanism;

[0025] When the wood surface is uneven, the arc block 3 can facilitate the staff to push the sub-saw;

[0026] The first motor 33 is driven to rotate, thereby driving the mother saw blade 6 to rotate, so as to cut wood;

[0027] The second motor 23 is driven to rotate, which drives the gear 22 to rotate, so that the lifting bin 20 is lifted and lowered, and the second support plate 32 is driven to lift and lower, so that the second motor 23 rotates and lifts, and then the mother saw blade 6 is lifted and lowered, which is used to adjust the cutting depth of the mother saw blade 6.

[0028] The present embodiment is further configured such that two pairs of second support columns 11 are provided on the first support plate 8, fourth support plates 12 are movably mounted on the two pairs of second support columns 11, a third motor 13 is provided on the upper wall of the fourth support plate 12, a sub-saw blade 5 is provided on the driving end of the third motor 13, a multi-stage electric telescopic rod 30 is provided on the first support plate 8, the fourth support plate 12 is provided on the telescopic end of the multi-stage electric telescopic rod 30, a fifth support plate 14 is provided on the upper wall of the first support plate 8 and between the third motor 13 and the sub-saw blade 5, a second slide groove 28 is provided on the fifth support plate 14, and a transmission shaft of the third motor 13 is provided in the second slide groove 28;

[0029] The third motor 13 is driven to rotate, and the sub-saw blade 5 is driven to rotate, so as to make grooves during cutting, and thus the sawing edge can be prevented from being chipped and burred;

[0030] The multi-stage electric telescopic rod 30 is driven to extend and retract, which drives the fourth support plate 12 to rise and fall, causes the third motor 13 to rise and fall, and further causes the sub-saw blade 5 to rise and fall. The sub-saw blade 5 is raised during the grooving of the wooden board to prevent the sub-saw blade 5 from scratching the wooden board in the non-processing position, thereby reducing the cost of wood processing and increasing the application range of the sub-saw.

[0031] The present embodiment is further configured as follows: the dust removal mechanism includes a protective shell 1, the protective shell 1 is arranged on the upper wall surface of the first support plate 8, the mother saw blade 6 and the sub-saw blade 5 are arranged in the protective shell 1, a dust removal channel 2 is arranged in the protective shell 1, the dust removal channel 2 is provided with a first dust removal port 4 on one side of the sub-saw blade 5, the dust removal channel 2 is provided with a second dust removal port 7 on one side of the mother saw blade 6, a dust removal bin 17 is arranged on the upper wall surface of the first support plate 8, the dust removal channel 2 is connected to the dust removal bin 17, a filter basket 16 is slidably installed in the dust removal bin 17, a fourth motor 19 is arranged in the dust removal bin 17, and a fan blade 18 is arranged on the driving end of the fourth motor 19;

[0032] A protective net is provided on one side of the dust removal bin 17 close to the fourth motor 19 to discharge the air sucked in by the dust removal bin 17;

[0033] The filter basket 16 is closed at the top, with an opening on one side and filter screens on the other sides. Wood chips generated by wood processing enter the filter basket 16 through the opening of the filter basket 16. A pair of sliders are provided on the filter basket 16, and a pair of slides are provided on the dust removal bin 17. The filter basket 16 is slidably installed in the dust removal bin 17 through the sliders, which is convenient for the staff to replace the filter basket 16 or clean the wood chips in the filter basket 16;

[0034] The fourth motor 19 is driven to rotate, which drives the fan blades 18 to rotate, so that the dust removal bin 17 produces a certain vacuum environment. The wood chips raised by the sub-saw blade 5 and the main saw blade 6 when processing the wooden board are sucked into the dust removal channel 2 through the first dust removal port 4 and the second dust removal port 7 respectively, and then the wood chips are collected by the filter basket 16. The sawdust splashed during wood processing can be collected to prevent the sawdust from being inhaled into the lungs of the workers, thereby preventing the workers from suffering from pneumoconiosis and ensuring their health.

[0035] The present embodiment is further configured such that a mother saw bin 24 is provided on the upper wall surface of the first support plate 8 and on the back side of the third support plate 15, the first motor 33 and the rack 21 are provided in the mother saw bin 24, a sub-saw bin 25 is provided on the upper wall surface of the first support plate 8 and on the back side of the fifth support plate 14, and the third motor 13 is provided in the sub-saw bin 25.

[0036] The present embodiment is further configured such that a pair of grooves are respectively opened on the first support plate 8, the main saw blade 6 and the sub-saw blade 5 are respectively movably mounted in the grooves of the first support plate 8, and an arc handle 10 is provided on the upper wall surface of the first support plate 8 and above the main saw bin 24, and a start button 9 is provided in the arc handle 10.

[0037] This embodiment is further configured such that a pointer 27 is provided on the second support plate 32 , a scale 26 is provided on the rack 21 , and the pointer 27 is movably provided on the scale 26 .

[0038] Embodiment: When the mother-and-child saw adjusts the cutting depth, the second motor 23 is driven to rotate, which drives the gear 22 to rotate, so that the lifting bin 20 is lifted and lowered, which drives the second support plate 32 to lift and lower, so that the second motor 23 is rotated and lifted, and then the mother saw blade 6 is lifted and lowered, which is used to adjust the cutting depth of the mother saw blade 6. The pointer 27 is movably arranged on the scale 26. The staff can adjust the cutting depth by observing the position of the pointer 27 on the scale 26, thereby increasing the application scope of the mother-and-child saw, driving the first motor 33 to rotate, driving the mother saw blade 6 to rotate, which is used to cut wood, driving the multi-stage electric telescopic rod 30 to extend and retract, driving the fourth support plate 12 to lift and lower, so that the third motor 13 is lifted and lowered, and then the sub-saw blade 5 is lifted and lowered, and the sub-saw blade 5 is raised during the grooving of the wooden board to prevent the sub-saw blade 5 from scratching the wooden board at the non-processing position, thereby reducing the wood processing. The cost of labor is reduced, and the application scope of the mother-and-child saw is improved. The third motor 13 is driven to rotate, which drives the sub-saw blade 5 to rotate and is used for grooving during cutting, which can prevent the saw edge from being broken and burred. When the mother-and-child saw is used, the fourth motor 19 is driven to rotate, which drives the fan blade 18 to rotate, so that the dust removal bin 17 produces a certain vacuum environment. The wood chips raised by the sub-saw blade 5 and the mother saw blade 6 when processing the wooden board are sucked into the dust removal channel 2 through the first dust removal port 4 and the second dust removal port 7 respectively, and then the wood chips are collected through the filter basket 16. The sawdust splashed during wood processing can be collected to prevent the sawdust from being inhaled into the lungs of the staff, thereby preventing the staff from getting pneumoconiosis and ensuring the health of the staff. The filter basket 16 is slidably installed in the dust removal bin 17 through a slider, which is convenient for the staff to replace the filter basket 16 or clean the wood chips in the filter basket 16.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable saw comprising a first support plate (8), characterized in that: An arc block (3) is provided on one side of the first support plate (8), two pairs of first support columns (31) are provided on the first support plate (8), a second support plate (32) is slidably mounted on the two pairs of first support columns (31), a first motor (33) is provided on the upper wall surface of the second support plate (32), a mother saw blade (6) is provided on the driving end of the first motor (33), and a second support plate (32) is provided on the upper wall surface of the second support plate (32) and between the first motor (33) and the mother saw blade (6). A third support plate (15) is arranged, the third support plate (15) is provided with a first slide groove (29), the transmission shaft of the first motor (33) is movably installed in the first slide groove (29), the second support plate (32) is provided with a lifting warehouse (20), the lifting warehouse (20) is provided with a second motor (23), a gear (22) is arranged on the driving end of the second motor (23), the lifting warehouse (20) is provided with a groove, the gear (22) is rotatably arranged on the lifting warehouse (20), The first support plate (8) is provided with a rack (21), the gear (22) and the rack (21) are meshed, the first support plate (8) is provided with a dust removal mechanism, the first support plate (8) is provided with two pairs of second support columns (11), the two pairs of second support columns (11) are movably mounted with a fourth support plate (12), the upper wall surface of the fourth support plate (12) is provided with a third motor (13), and the driving end of the third motor (13) is provided with a sub The saw blade (5) is provided with a multi-stage electric telescopic rod (30) on the first support plate (8), the fourth support plate (12) is arranged on the telescopic end of the multi-stage electric telescopic rod (30), a fifth support plate (14) is arranged on the upper wall surface of the first support plate (8) and is located between the third motor (13) and the sub-saw blade (5), a second slide groove (28) is arranged on the fifth support plate (14), and the transmission shaft of the third motor (13) is arranged in the second slide groove (28).

2. A portable saw according to claim 1, characterized in that: The dust removal mechanism comprises a protective shell (1), wherein the protective shell (1) is arranged on the upper wall surface of the first support plate (8), the main saw blade (6) and the sub-saw blade (5) are arranged in the protective shell (1), a dust removal channel (2) is arranged in the protective shell (1), a first dust removal port (4) is arranged in the dust removal channel (2) and is located on one side of the sub-saw blade (5), a second dust removal port (7) is arranged in the dust removal channel (2) and is located on one side of the main saw blade (6), a dust removal bin (17) is arranged on the upper wall surface of the first support plate (8), the dust removal channel (2) is connected to the dust removal bin (17), a filter basket (16) is slidably installed in the dust removal bin (17), a fourth motor (19) is arranged in the dust removal bin (17), and a fan blade (18) is arranged on the driving end of the fourth motor (19).

3. A portable saw according to claim 2, characterized in that: A main saw bin (24) is provided on the upper wall surface of the first support plate (8) and located on the back side of the third support plate (15); the first motor (33) and the rack (21) are provided in the main saw bin (24); a sub-saw bin (25) is provided on the upper wall surface of the first support plate (8) and located on the back side of the fifth support plate (14); the third motor (13) is provided in the sub-saw bin (25).

4. The portable saw according to claim 3, characterized in that: The first support plate (8) is provided with a pair of grooves, and the main saw blade (6) and the sub-saw blade (5) are movably mounted in the grooves of the first support plate (8). An arc handle (10) is provided on the upper wall surface of the first support plate (8) and above the main saw bin (24), and a start button (9) is provided in the arc handle (10).

5. The portable saw according to claim 4, characterized in that: A pointer (27) is arranged on the second support plate (32), a scale (26) is arranged on the rack (21), and the pointer (27) is movably arranged on the scale (26).

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