Primary and secondary saw structure convenient to adjust

Abstract

The utility model relates to the technical field of wood-working mechanical equipment, in particular to a child-mother saw structure convenient to adjust, which comprises a support, a top plate, a mother saw assembly and a child saw assembly, the top plate is connected to the top of the support through a connecting plate, the mother saw assembly and the child saw assembly are both arranged on the support, and a bottom plate and an actuator are arranged in the support. Four bosses are arranged on the bottom plate side by side, guide rails are arranged on the bosses, the primary saw assembly and the secondary saw assembly move up and down relative to the guide rails through actuators, and an adjusting mechanism is arranged on the guide rails. The base plate is arranged in the support, the boss which is formed by one-time machining on the base plate and guarantees the equal height is arranged on the base plate, it is guaranteed that the primary saw blade and the secondary saw blade are coplanar in the assembling process, the smoothness in the cutting process is improved, the cutting quality is guaranteed, and when the primary saw blade and the secondary saw blade are not coplanar, the primary saw blade and the secondary saw blade can be adjusted through cooperation of the adjusting bolt, the guide rail and the boss. The purpose of adjusting the mother saw blade and the son saw blade to be coplanar is achieved by adjusting the relative gap between the guide rail and the boss.

Description

Technical Field

[0001] The utility model relates to the technical field of woodworking machinery and equipment, in particular to a multi-jaw saw structure which is easy to adjust. Background Art

[0002] The double-jaw saw is a common woodworking cutting tool, mainly used in woodworking processing projects with relatively high precision requirements. The double-jaw saw uses a double saw blade to cut the board. It consists of two saw blades, one large and one small, in the front and back. The small saw blade is used for scratching and the large saw blade is used for cutting. The double saw wheels have high pointing accuracy and can achieve high-precision cutting effects. The cutting surface is smooth, the cutting quality is high, and the production efficiency is high. It is suitable for mass production processing occasions. In actual use, when cutting boards of different thicknesses, the height of the two saw blades needs to be adjusted according to actual conditions.

[0003] The Chinese utility model patent (grant announcement number CN211389123U) discloses a sub-mother saw for quickly adjusting the height of a sub-saw blade, comprising a fixed plate, a sub-saw assembly, a mother saw assembly and a fan, the sub-saw assembly comprising a sub-motor, a sub-saw blade and a sub-lifting device, the sub-lifting device comprising a front-and-back adjustment device and a height adjustment device, the sub-motor is provided with a threaded positioning device, the front-and-back adjustment device is arranged on the outside of the threaded positioning device, one end of the front-and-back adjustment device is threadedly fixed to the fixed plate, and the other end is provided with an adjustment screw connected to the threaded positioning device, the fixed plate is provided with an arc groove, the height adjustment device comprises an adjustment seat arranged on the sub-motor, and a sub-saw blade passing through the arc groove is threadedly arranged on the adjustment seat Adjusting knob, side panels perpendicular to the fixed plate are provided on both side edges of the fixed plate, limiting holes are provided on the side panels, and the limiting holes are used to adjust the working table angle to 45 degrees. A chip box is installed on one side of the fixed plate, and a sliding plate is installed on the chip box. A tension spring is provided on the sliding plate, and the other end of the tension spring is fixed on the fixed plate. This technical solution manually adjusts the sub-saw blade by sliding the sub-adjusting knob along the arc groove, but in actual use, due to defects in the assembly process and the impact of the plate during cutting, this adjustment method will result in adjustment errors, and it cannot be ensured that the two saw blades are in the same plane, so that the cutting surface of the plate will be uneven during cutting, which seriously affects the product quality.

[0004] Therefore, it is necessary to provide a conveniently adjustable sub-cutter structure to overcome the defects of the prior art. Utility Model Content

[0005] The utility model aims to solve the problems in the prior art and provide a multi-jaw saw structure which is easy to adjust.

[0006] The technical solution of the utility model is:

[0007] A mother - son saw structure that is convenient for adjustment, including a bracket, a top plate, a mother saw assembly, and a son saw assembly. The top plate is connected to the top of the bracket through a connecting plate and can achieve angle adjustment with the bracket. The mother saw assembly and the son saw assembly are both arranged on the bracket so as to be movable up and down. There is a bottom plate and two actuators inside the bracket. Four bosses are arranged side by side on the bottom plate. The four bosses are grouped in pairs of two, and guide rails are arranged on the bosses. The mother saw assembly and the son saw assembly respectively move up and down relative to the guide rails through an actuator, and an adjustment mechanism is arranged on the guide rails.

[0008] Preferably, a guide groove running through along the length direction is arranged on one side of the guide rail, and a first threaded hole and a second threaded hole are arranged on the side surface of the guide rail perpendicular to the guide groove.

[0009] Preferably, the adjustment mechanism includes an adjustment bolt and a locking nut. The adjustment bolt is threadedly connected to the second threaded hole, the end of the adjustment bolt abuts against the surface of the boss, and the locking nut is threadedly connected to the adjustment bolt.

[0010] Preferably, the mother saw assembly includes a mother saw motor, a mother saw blade, and a mother positioning plate. The mother saw motor is arranged on the mother positioning plate, the mother saw blade is fixedly arranged on the output shaft of the mother saw motor, and both sides of the mother positioning plate are slidably arranged in the guide groove.

[0011] Preferably, the son saw assembly includes a son saw motor, a son saw blade, and a son positioning plate. The son saw motor is arranged on the son positioning plate, the son saw blade is fixedly arranged on the output shaft of the son saw motor, and both sides of the son positioning plate are slidably arranged in the guide groove.

[0012] Preferably, the actuator is an electric push rod. The fixed end of the actuator is arranged on the bracket, and the extending end of the actuator is connected to the mother positioning plate / son positioning plate.

[0013] Preferably, the cross - section of the bracket is set to a structure with an open top, bottom, and rear side, that is, its cross - section is in a "冂" shape. There are long slot holes and dust suction holes on the front side of the bracket.

[0014] Preferably, a blower is arranged inside the bracket, and the inlet of the blower is communicated with the dust suction hole.

[0015] Preferably, two connecting plates are provided. The two connecting plates are symmetrically arranged on both sides of the bracket. There is a first arc - shaped groove on the connecting plate, and a positioning hole and a second arc - shaped groove adapted to the first arc - shaped groove are arranged on the bracket. A locking handle is arranged in the positioning hole and the second arc - shaped groove.

[0016] Preferably, a first avoidance hole and a second avoidance hole are arranged on the top plate.

[0017] Compared with the prior art, the beneficial effects of the present utility model are:

[0018] The utility model ensures that the mother saw blade and the sub-saw blade are coplanar during assembly by arranging a base plate in the bracket and a boss which is processed on the base plate at one time and has the same height, thereby improving the flatness during cutting and ensuring the cutting quality. When the mother saw blade and the sub-saw blade are not coplanar, the relative gap between the guide rail and the boss can be adjusted by adjusting the cooperation of the adjusting bolt, the guide rail and the boss, so as to achieve the purpose of adjusting the mother saw blade and the sub-saw blade to be coplanar. The utility model has a simple overall structure, is convenient and quick to adjust, has high adjustment accuracy and is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0020] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0021] Figure 3 The three-dimensional structure of the utility model is shown in FIG. Figure 3 ;

[0022] Figure 4 It is a partial enlarged structural schematic diagram of A of the utility model;

[0023] Figure 5 This is a schematic diagram of the guide rail structure of the utility model;

[0024] Figure 6 This is a schematic diagram of the support structure of the utility model;

[0025] Figure 7 This is a schematic diagram of the connecting plate structure of the utility model.

[0026] Among them, 1. bracket; 2. top plate; 3. connecting plate; 4. bottom plate; 5. actuator; 6. boss; 7. guide rail; 8. guide groove; 9. first threaded hole; 10. second threaded hole; 11. adjusting bolt; 12. locking nut; 13. mother saw motor; 14. mother saw blade; 15. mother positioning plate; 16. sub-saw motor; 17. sub-saw blade; 18. sub-positioning plate; 19. long slot hole; 20. dust suction hole; 21. fan; 22. first arc groove; 23. positioning hole; 24. second arc groove; 25. locking handle; 26. first avoidance hole; 27. second avoidance hole. DETAILED DESCRIPTION

[0027] In order to make the technical means, technical features, utility model objectives and technical effects achieved by the utility model easy to understand, the utility model is further explained below with reference to specific illustrations.

[0028] like Figure 1-Figure 7As shown in the figure, a convenient adjustable mother-son saw structure includes a bracket 1, a top plate 2, a blower 21, a mother saw assembly, a son saw assembly, and two actuators 5. The top plate 2, the blower 21, the mother saw assembly, the son saw assembly, and the two actuators 5 are all installed on the bracket 1, and the two actuators 5 are respectively connected to the mother saw assembly and the son saw assembly correspondingly.

[0029] As Figure 1-Figure 3 , Figure 6 and Figure 7 shown, the bracket 1 is formed by bending sheet metal, and is integrally processed into a structure with openings on the upper surface, lower surface, and rear side, that is, its cross-section is in the shape of "冂". The bracket 1 serves as the installation basis for the top plate 2, the blower 21, the mother saw assembly, and the son saw assembly. Specifically, the top plate 2 is connected to the top of the bracket 1 through connecting plates 3. The number of connecting plates 3 is two, and the two connecting plates 3 are symmetrically connected to both sides of the bracket 1 respectively. A first arc-shaped groove 22 is processed on the connecting plate 3, a positioning hole 23 and a second arc-shaped groove 24 are processed on the bracket 1. The first arc-shaped groove 22 is adapted to the positioning hole 23 and the second arc-shaped groove 24. A locking handle 25 is installed in the positioning hole 23 and the second arc-shaped groove 24. The locking handle 25 penetrates through the positioning hole 23 and the second arc-shaped groove 24 in sequence and is connected in the first arc-shaped groove 22, and can be tightened and fixed. Through the provided first arc-shaped groove 22, positioning hole 23, and second arc-shaped groove 24, the angle adjustment between the top plate 2 and the bracket 1 can be realized. Loosen the locking handle 25 to adjust the top plate 2. After adjustment, tighten the locking handle 25 to fix the position of the top plate 2, and the angle cutting of the sheet can be realized. A first avoidance hole 26 and a second avoidance hole 27 are processed on the top plate 2. The first avoidance hole 26 and the second avoidance hole 27 are arranged in a linear arrangement.

[0030] As Figure 1 , Figure 2 , Figure 4 and Figure 5 shown, a bottom plate 4 is connected inside the bracket 1. The bottom plate 4 is fixedly connected to the bracket 1 by welding. Four bosses 6 are processed on the bottom plate 4 and are arranged side by side. The four bosses 6 are divided into two groups with two in each group. After the bottom plate 4 is welded to the bracket 1, the four bosses 6 are processed at one time to ensure the consistency of the heights of the four bosses 6. A guide rail 7 is installed on each boss 6 to guide the movement of the mother saw assembly and the son saw assembly. A guide groove 8 penetrating along its length direction is processed on one side of the guide rail 7. After assembly, the guide grooves 8 of the guide rails 7 on the two bosses 6 in the same group are opposite. First threaded holes 9 and second threaded holes 10 are processed on the side of the guide rail 7 perpendicular to the processing plane of the guide groove 8. A plurality of first threaded holes 9 are evenly distributed for the installation connection between the guide rail 7 and the boss 6. A plurality of second threaded holes 10 are evenly distributed. An adjusting mechanism is installed in the second threaded holes 10 to adjust the relative distance between the guide rail 7 and the boss 6, so as to adjust the positions of the mother saw assembly and the son saw assembly to be consistent;

[0031] The adjusting mechanism includes an adjusting bolt 11 and a locking nut 12. The adjusting bolt 11 is threadedly connected in the second threaded hole 10. The end of the adjusting bolt 11 abuts against the surface of the boss 6. The locking nut 12 is threadedly connected to the adjusting bolt 11 and abuts against the surface of the guide rail 7. When adjusting, the locking nut 12 is loosened to make the locking nut 12 move away from the guide rail 7. Since the end of the adjusting bolt 11 abuts against the surface of the boss 6, the relative distance between the guide rail 7 and the boss 6 can be adjusted by screwing the adjusting bolt 11. After adjustment, the locking nut 12 is tightened to lock the installation position of the adjusting bolt 11 on the guide rail 7.

[0032] like Figure 1-Figure 3 As shown, the mother saw assembly includes a mother saw motor 13, a mother saw blade 14 and a mother positioning plate 15. Both sides of the mother positioning plate 15 are inserted into the guide groove 8. The mother saw motor 13 is installed on the mother positioning plate 15. The output shaft of the mother saw motor 13 passes through the bracket 1 to fix the mother saw blade 14. The mother saw blade 14 can extend upward through the first avoidance hole 26 to the top of the top plate 2. The protruding end of one of the actuators 5 is connected to the mother positioning plate 15, and the actuator 5 drives the mother positioning plate 15 to move up and down relative to the guide rail 7, so as to adjust the distance that the mother saw blade 14 extends upward from the top plate 2. A long slot hole 19 is processed on the front side surface of the bracket 1 to facilitate the movement of the output shaft of the mother saw motor 13. The actuator 5 adopts but is not limited to an electric push rod, and the fixed end of the actuator 5 is connected to the bracket 1.

[0033] like Figure 1-Figure 3 As shown, the sub-saw assembly includes a sub-saw motor 16, a sub-saw blade 17 and a sub-positioning plate 18. Both sides of the sub-positioning plate 18 are inserted into the guide groove 8, and the sub-saw motor 16 is installed on the sub-positioning plate 18. The output shaft of the sub-saw motor 16 passes through the bracket 1 to fix the sub-saw blade 17. The sub-saw blade 17 can extend upward through the second avoidance hole 27 to the top of the top plate 2. The protruding end of another actuator 5 is connected to the sub-positioning plate 18, and the actuator 5 drives the sub-positioning plate 18 to move up and down relative to the guide rail 7, thereby adjusting the distance that the sub-saw blade 17 extends upward from the top plate 2. A long slot hole 19 is processed on the front side surface of the bracket 1 to facilitate the movement of the output shaft of the sub-saw motor 16. The actuator 5 adopts but is not limited to an electric push rod, and the fixed end of the actuator 5 is connected to the bracket 1.

[0034] like Figure 1-Figure 3 As shown, the fan 21 is installed inside the bracket 1 to absorb the debris generated during cutting to prevent the debris from flying around and affecting the environment and personnel health. A dust suction hole 20 connected to the inlet of the fan 21 is processed on the front side of the bracket 1. The chips are sucked into the fan 21 through the dust suction hole 20 and transported to the corresponding position by the fan 21.

[0035] The working principle of the utility model is:

[0036] When in use, the mother saw assembly and the sub-saw assembly are installed side by side on the bracket 1, the mother positioning plate 15 and the sub-positioning plate 18 are inserted into the guide groove 8 and are respectively connected to the actuator 5, the mother saw blade 14 and the sub-saw blade 17 respectively pass through the first avoidance hole 26 and the second avoidance hole 27 to escape to the top of the top plate 2, when cutting plates of different thicknesses, the actuator 5 is started, and the actuator 5 drives the mother positioning plate 15 and the sub-positioning plate 18 to slide in the guide groove 8, and adjusts the height of the mother saw blade 14 and the sub-saw blade 17 to meet the cutting requirements;

[0037] When the mother saw blade 14 and the sub-saw blade 17 become loose, so that the two saw blades are not coplanar, loosen the locking nut 12, and rotate the adjusting bolt 11. The adjusting bolt 11 abuts against the plane of the boss 6 to drive the guide rail 7 to move relative to the boss 6, thereby adjusting the gap between the guide rail 7 and the boss 6 until the mother saw blade 14 and the sub-saw blade 17 are adjusted to be coplanar. After the adjustment is completed, lock the position of the adjusting bolt 11 on the guide rail 7 by tightening the locking nut 12, and fasten the guide rail 7 to the boss 6.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. That is, any equivalent changes and modifications made according to the content of the patent application scope of the present invention should belong to the technical scope of the present invention.

Claims

1. A conveniently adjustable mother-and-child saw structure, comprising a support (1), a top plate (2), a mother saw assembly and a child saw assembly, wherein the top plate (2) is connected to the top of the support (1) via a connecting plate (3) and can realize angle adjustment with the support (1), and the mother saw assembly and the child saw assembly can be arranged on the support (1) so as to be movable up and down, characterized in that: Inside the bracket (1), a bottom plate (4) and two actuators (5) are provided. Four bosses (6) are arranged side by side on the bottom plate (4). The four bosses (6) are grouped in pairs of two. A guide rail (7) is provided on the bosses (6). The main saw assembly and the sub-saw assembly respectively move up and down relative to the guide rail (7) through one of the actuators (5). An adjusting mechanism is provided on the guide rail (7).

2. The adjustable sub-saw structure according to claim 1, characterized in that: On one side of the guide rail (7), a guide groove (8) running through along the length direction is provided. On the side surface of the guide rail (7) perpendicular to the guide groove (8), a first threaded hole (9) and a second threaded hole (10) are provided.

3. The adjustable sub-saw structure according to claim 2 is characterized in that: The adjusting mechanism includes an adjusting bolt (11) and a locking nut (12). The adjusting bolt (11) is threadedly connected in the second threaded hole (10). The end of the adjusting bolt (11) abuts against the surface of the boss (6). The locking nut (12) is threadedly connected to the adjusting bolt (11).

4. The adjustable sub-saw structure according to claim 2, characterized in that: The main saw assembly includes a main saw motor (13), a main saw blade (14) and a main positioning plate (15). The main saw motor (13) is arranged on the main positioning plate (15). The main saw blade (14) is fixedly arranged on the output shaft of the main saw motor (13). Both sides of the main positioning plate (15) are slidably arranged in the guide groove (8).

5. The adjustable sub-saw structure according to claim 4 is characterized in that: The sub-saw assembly includes a sub-saw motor (16), a sub-saw blade (17) and a sub-positioning plate (18). The sub-saw motor (16) is arranged on the sub-positioning plate (18). The sub-saw blade (17) is fixedly arranged on the output shaft of the sub-saw motor (16). Both sides of the sub-positioning plate (18) are slidably arranged in the guide groove (8).

6. The adjustable sub-saw structure according to claim 5, characterized in that: The actuator (5) is an electric push rod. The fixed end of the actuator (5) is arranged on the bracket (1). The extending end of the actuator (5) is connected to the main positioning plate (15) / sub-positioning plate (18).

7. The adjustable sub-saw structure according to claim 1, characterized in that: The cross-section of the bracket (1) is configured with an open structure on the upper surface, the lower surface and the rear side surface, that is, its cross-section is in a "冂" shape. A long slot hole (19) and a dust suction hole (20) are provided on the front side surface of the bracket (1).

8. The adjustable sub-saw structure according to claim 7, characterized in that: A blower (21) is arranged inside the bracket (1). The inlet of the blower (21) is communicated with the dust suction hole (20).

9. The adjustable sub-saw structure according to claim 1, characterized in that: Two connecting plates (3) are provided. The two connecting plates (3) are symmetrically arranged on both sides of the bracket (1). A first arc-shaped groove (22) is provided on the connecting plate (3). A positioning hole (23) and a second arc-shaped groove (24) adapted to the first arc-shaped groove (22) are provided on the bracket (1). A locking handle (25) is arranged in the positioning hole (23) and the second arc-shaped groove (24).

10. The adjustable parent-child saw structure according to claim 1, characterized in that: A first avoidance hole (26) and a second avoidance hole (27) are provided on the top plate (2).

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