Dust-free multifunctional cutting machine and electric cutter

Abstract

A dust-free multifunctional cut machine, including a worktable board, a machine case carrying the worktable board, a rod assembly arranged on the top of the worktable board, a frame and a cutting assembly comprising a cutting blade and a motor for driving the cutting blade for rotation, and a dust suction assembly arranged between the output shaft end of the motor and a cutting blade and having a spiral casing and a dust suction vane, wherein, the spiral casing includes a dust suction inlet and a dust exhaust outlet, the rod assembly includes a rod fixture and a slide bracket, the frame is connected with the slide bracket through the frame rotating seat and the frame moves back and forth through the rod with the use of the slide bracket. The dust-free multifunctional saw has three functions including bench sawing, miter sawing and automatic dust collection.

Claims

1. A dust-free multifunctional cutting machine, comprising a worktable board, a machine case carrying the worktable board, a rod assembly arranged on a top of the worktable board, a frame and a cutting assembly comprising a cutting blade and a motor for driving the cutting blade for rotation, wherein the rod assembly comprises a rod, a rod fixture and a slide bracket, the frame is connected with the slide bracket through a frame rotating seat, the frame moves back and forth through the rod with the use of the slide bracket, and the frame is connected with the cutting assembly, a switching handle, an upper handle, and a lower handle; and the dust-free multifunctional cutting machine has the functions of bench sawing and miter sawing; wherein the dust-free multifunctional cutting machine is configured to operate for bench sawing by locking the slide bracket, pressing down the frame to a lowest position, inserting the switching handle to a corresponding position of the frame to lock the frame, and starting a switch to perform the bench sawing; wherein the dust-free multifunctional cutting machine is configured to operate for miter sawing by drawing away the switching handle such that the frame lifts up automatically under an action of a torsional spring in a frame swivel pin; and starting the switch to perform the miter sawing; wherein the cutting assembly comprises an outer hood A, a blade guard, an inner hood A, the cutting blade, an inner hood B, a spiral casing A, an outer hood B, a spiral casing B and the motor connected in turn from left to right, wherein, the spiral casings A and B are correspondingly provided with a main spiral casing in which a dust suction vane is arranged, the motor is provided with an output shaft connected with the cutting blade and the dust suction vane; and wherein the spiral casing A is provided inside with a blade follower assembly comprising a blade follower switching mechanism, a blade follower support plate, and a blade follower connected in turn; when the dust-free multifunctional cutting machine is configured to operate for bench sawing function, the blade follower switching mechanism is switched to a bench sawing mode, and the blade follower support plate is rotated to adjust the blade follower to a lower part of the blade guard, and when the dust-free multifunctional cutting machine is configured to operate for miter sawing, the blade follower switching mechanism is switched to a miter sawing mode, and the blade follower is adjusted to be concealed in the blade guard.

2. The dust-free multifunctional cut machine according to claim 1, wherein the dust suction assembly is connected with the cutting assembly and the machine case, and the dust suction assembly comprises a dust exhaust tube and a dust suction hose; one end of the dust exhaust tube is connected with a dust exhaust outlet, and the other end of the dust exhaust tube is connected with a dust collection bag via a dust exhaust tube joint and a dust exhaust tube of the dust collection bag.

3. The dust-free multifunctional cut machine according to claim 2, wherein a dust collection box is arranged under the worktable board, and one end of the dust suction hose is connected with the dust collection box while the other end of the dust suction hose is connected with a first dust suction tube.

4. The dust-free multifunctional cut machine according to claim 3, wherein, a part of cuttings generated from a material cut by the cutting blade is absorbed by the dust collection box and then into the first dust suction tube via the dust suction hose, and another part of the cuttings is absorbed into a second dust suction tube via a dust pilot flue composed of the outer hoods on both sides of the cutting blade, and then into the dust exhaust outlet through the dust suction vane, and discharged into the dust collection bag via the dust exhaust outlet and the dust exhaust tube.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) In order to illustrate the technical schemes in the embodiments of the Invention or in prior art more clearly, the drawings required in description of the embodiments or prior art will be introduced briefly as follows. Obviously, the drawings described below are just a part of the embodiments of the Invention. A person skilled in the art is able to obtain other drawings according to these drawings without any creative work.

(2) FIG. 1 is the structural diagram of the multifunctional cutting machine of Embodiment 1 of the Invention (1);

(3) FIG. 2 is the structural diagram of the multifunctional cutting machine of Embodiment 1 of the Invention (2);

(4) FIG. 3 is the structural diagram of the upper structure of the multifunctional cutting machine of Embodiment 1 of the Invention;

(5) FIG. 4 is the structural diagram of the lower structure of the multifunctional saw of Embodiment 1 of the Invention;

(6) FIG. 5A is the structural diagram of the blade follower assembly of the multifunctional cutting machine in the state of bench sawing of Embodiment 1 of the Invention;

(7) FIG. 5B is the structural diagram of the blade follower assembly of the multifunctional cutting machine in the state of miter sawing of Embodiment 1 of the Invention;

(8) FIG. 6 is the structural diagram of the dust suction flue of multifunctional cutting machine of Embodiment 1 of the Invention; FIG. 6A is an enlarged view of A portion in FIG. 6, FIG. 6B is an enlarged view of B portion in FIG. 6, and FIG. 6C is an enlarged view of C portion in FIG. 6;

(9) FIG. 7 is the structural diagram of the cutting assembly of the multifunctional cutting machine of Embodiment 1 of the Invention;

(10) The parts in the figures are described as follows, 1Outer hood A; 2Blade guard; 3Inner hood A; 4Cutting blade; 5Blade follower switching mechanism; 6Blade follower; 7Blade follower support plate; 8Blade follower assembly; 9Inner hood B; 10Spiral casing A; 11Outer hood B; 12Saw blade drive shaft; 13Dust suction vane; 14Unlocking push rod; 15Dust exhaust tube; 16Spiral casing B; 17Frame; 18Junction box; 19Frame swivel pin; 20Switch; 21Upper handle; 22Lower handle; 23Laser box seat; 24Frame rotating seat; 25Slide bracket; 26Rod positioning knob; 27Rod fixture; 28Dust suction hose; 29Switching handle; 30Motor; 31Locking handle; 32Stopper; 33Worktable board; 34Dust exhaust tube joint; 35Parallel guide ruler; 36Dust collection box; 37Dust suction elbow; 38Machine case; 39Dust collection bag; 40Seal plate of dust collection bag; 41Dust exhaust tube of the dust collection bag; 42Dust pilot flue; 43Dust exhaust outlet; 44First dust suction tube; 45Second dust suction tube; 46Primary dust suction inlet.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

(11) The Invention is further described in combination with drawings and embodiments as follows. It shall be noted that, these embodiments are described for providing further understanding of the Invention, and do not form an restriction therefor. Moreover, the technical features related to the embodiments of the Invention described as follows can combine with each other when they are not conflicted to each other.

Embodiment 1

(12) Please refer to the structural diagrams 1 and 2 of a dust-free multifunctional saw as shown in FIG. 1 and FIG. 2. A dust-free multifunctional cutting machine, comprising a worktable board 33, a machine case 38 carrying the worktable board 33, a rod assembly arranged on the top of the worktable board 33, a frame 17 and a cutting assembly comprising a cutting blade 4 and a motor 30 for driving the cutting blade; the rod assembly comprises a rod 47, a rod fixture 27 and a slide bracket 25, the frame 17 is connected with the slide bracket 25 through a frame rotating seat 24, the frame 17 moves back and forth through the rod 47 with the use of the slide bracket 25, the frame 17 is connected with a cutting assembly, a switching handle 29, an upper handle 21, and a lower handle 22, the cutting assembly moves back and forth through the rod with the use of the slide bracket 25 for a longer cutting distance and performs miter sawing by rotating in the left and right angles with the use of the frame rotating seat 24;

(13) The dust-free multifunctional cutting machine has three functions including bench sawing, miter sawing and automatic dust collection:

(14) For bench sawing, the operator is suggested to lock the slide bracket 25 with a rod positioning knob 26 firstly, rotate the cutting assembly to the required angle via the frame rotating seat 24, lock the cutting assembly with the locking handle 31, and press down the frame 17 to the lowest position, insert the switching handle 29 to the corresponding position of the frame 17 after unlocking and lock the frame 17, switch a blade follower switching mechanism 5 to bench sawing mode and lock it (i.e., rotate the blade follower support plate 7, adjust the blade follower 6 and lock it) and start the switch 20 to perform bench sawing.

(15) For miter sawing, the operator is suggested to draw away the switching handle 29; at this time, the frame 17 lifts up automatically under the action of a torsional spring in a frame swivel pin 19; and then the operator is suggested to switch the blade follower switching mechanism 5 to miter sawing mode and lock it, and then unlock with a rod positioning knob 26, a stopper 32 must be mounted on the worktable board 33. The stopper 32 may rotate within the scope of 45, and start the switch 20 to perform miter sawing

(16) With respect to the automatic dust collection function, regardless of bench sawing or miter sawing function, the vane 13 in the spiral casing rotates at a high speed to automatically absorb the cuttings into the dust collection bag 39 through the dust suction flue in the dust suction hose 28 and the blade guard 2, and the dust pilot flue in the outer hood A 1 and the outer hood B 11, and the dust exhaust tube 15.

(17) As shown in FIG. 3-FIG. 7, the cutting assembly comprises an outer hood A 1, a blade guard 2, an inner hood A 3, a cutting blade 4, an inner hood B 9, a spiral casing A 10, an outer hood B 11, a spiral casing B 16 and a motor 30 connected in turn from left to right, wherein, the spiral casings A 10 and B 16 are correspondingly provided with a dust suction vane 13, the output end of the motor 30 directly drives the dust suction vane 13, and drives the saw blade drive shaft 12 through gears, and the cutting blade 4 is mounted on the saw blade drive shaft 12.

(18) The frame 17 is connected with an upper handle 21 and a lower handle 22, and the upper handle 21 and the lower handle 22 are provided with a switch 20 respectively; the unlocking push rod 14 with the self-locking function of inner hood is mounted on the upper handle 21. To press down the handle, the unlocking push rod 14 is pulled firstly, and the self-locking function can ensure safety.

(19) As shown in FIG. 5A and FIG. 5B, the spiral casing A 10 is provided inside with a blade follower assembly 8 composed of a blade follower switching mechanism 5, and a blade follower 6, and a blade follower support plate 7 connected in turn; for bench sawing function, the operator is suggested to adjust the blade follower 6 to the lower part of the blade guard 2, and for miter sawing, to adjust the blade follower 6 to conceal the blade follower 6 in the blade guard 2.

(20) The dust-free multifunctional cutting machine comprises a dust suction assembly respectively connected with the cutting assembly and the machine case 38, and the dust suction assembly further comprises a dust exhaust tube 15 and dust suction hose 28.

(21) The spiral casing A 10 and spiral casing B 16 are correspondingly provided with a main spiral casing comprising a dust exhaust outlet 43, a main dust collection inlet 46, and a first dust suction hose 44, wherein, one end of the dust exhaust tube 15 is connected with the dust exhaust outlet 43, and the other end of the dust exhaust tube 15 is connected with the dust collection bag 39 via a dust exhaust tube joint 34 and a dust exhaust tube of the dust collection bag 41, and the dust collection bag 39 is fixed together with the dust exhaust tube of the dust collection bag 41 through the seal plate of dust collection bag 40.

(22) A dust collection box 36 is arranged under the worktable board 33; one end of the dust suction hose 28 is connected with the dust collection box 36 through one end of a dust suction elbow 37 while the other end is connected with the first dust suction tube 44, effectively preventing leakage of wood cuttings under the worktable into the machine case 38. With the adoption of flexible dust suction connecting hose 28, it will not deform in the course of angle regulation of the dust-free cut machine, the service life of the dust suction flue may be extended and the leakproofness may be guaranteed during the operation of the dust-free cut machine. The machine case is provided with a parallel guide ruler 35.

(23) Part of the cuttings generated from the material cut by the cutting blade 4 are absorbed by the dust collection box 36 and then into the first dust suction tube 44 via the dust suction hose 28, and other cuttings are absorbed into the second dust suction tube 45 via the dust pilot flue 42 composed of outer hoods on both sides of the cutting blade 4, and then into the dust exhaust outlet 46 through the dust suction vane 13, and discharged into the dust collection bag 39 via the dust exhaust outlet 43 and dust exhaust tube 15.

(24) The frame rotating seat 24 is provided with a laser aligning assembly comprising a laser box 23 and laser head.

(25) Both sides of the cutting blade 4 are provided with an inner hood A 3 and an inner hood B 9 and an inner hood A 1 and an outer hood B 11 which can realize protection and dust guiding functions during bench sawing and miter sawing. The inner hood A and the inner hood B are secured in the inner space formed by a spiral casing A 10 and a blade guard 2, and the outer hood A 1 and the outer hood B 11 are mounted outside the blade guard 2. The front end of the inner hood is inserted into the front-end dust guide flue of the outer hood. Under working state, the operator is suggested to switch the unlocking push rod 14 to unlock and relock the inner hood and outer hood and cut materials. On the contrary, unlocking push rod 14 jacks the hoods and the frame rotating seat 24, and the inner and outer hoods cannot be opened, but the cutting blade 4 is completely concealed for safety and protection functions.

Embodiment 2

(26) Embodiment 2 of the Invention relates to an electric cutter, which uses the dust suction assembly stated in Embodiment 1, wherein, the dust suction and exhaust structure of the dust suction assembly is arranged between the output end of the motor of the electric cutter and the working parts of the electric cutter. The electric cutter is an automatic dust collection miter saw or automatic dust collection bench saw or automatic dust collection complex saw or portable automatic dust collection electric tool.

(27) The above is a detailed description in combination with drawings for the embodiments of the Invention, but the embodiments of the Invention are not limited to it. For a person skilled in the art, various changes and amendments, replacements and deformations made under the premise of not departing from the spirit and essence of the Invention shall still fall within the protection scope of the Invention.