Multifunctional cutting device for door machining

Abstract

The invention discloses a multifunctional cutting device for door machining, and belongs to the field of door machining equipment. A multifunctional cutting device for door machining comprises a workbench and further comprises a connecting base arranged at the top of the workbench, a supporting plate is hinged to the top of the connecting base, a servo motor is fixedly connected to the top of the supporting plate, and the output end of the servo motor is in transmission connection with a cutting saw blade; the protective shell is mounted on the side wall of the supporting plate and wraps the outer surface of the cutting saw blade; the rotating wheel is installed on the side wall of the cutting saw blade, and the surface of the rotating wheel is rotationally connected with a linkage rod through a rotating shaft; high-pressure gas can be generated to clean chippings at sawteeth of the cutting saw blade, meanwhile, the metal chippings in the sawteeth are magnetically attracted, the situation that the chippings are clamped into the sawteeth to hinder the cutting efficiency of a door workpiece is prevented, and therefore the sharpness and the cutting effect of the cutting saw blade are recovered.

Description

Technical Field

[0001] The present invention relates to the technical field of door processing equipment, and particularly to a multifunctional cutting device for door processing. Background Art

[0002] An aluminum alloy door refers to a door made of aluminum alloy extrusion profiles as frames, stiles, and fan materials, abbreviated as aluminum door. In order to facilitate later assembly, the aluminum alloy door is generally split into several door workpiece parts, so that the cutting equipment can cut the door workpiece. Cutting equipment is a common operation in metal processing, used to meet the processing requirements of different sizes and shapes. There are various common cutting methods for door workpieces, and the most common one is mechanical cutting, which includes circular saw cutting, band saw cutting, etc.

[0003] Currently, circular saw cutting is one of the most widely used cutting methods. Generally, after clamping the door workpiece, the circular saw is directly moved downward to cut the surface of the workpiece. During the cutting process of the existing cutting equipment for doors, metal debris often gets stuck at the teeth of the saw blade. Since the metal debris at the teeth cannot be cleaned in time, it is easy for the debris to get stuck at the teeth and hinder the cutting efficiency of the door workpiece, thereby affecting the sharpness and cutting effect of the cutting saw blade. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that the metal debris at the teeth cannot be cleaned in time in the prior art, and to propose a multifunctional cutting device for door processing.

[0005] In order to achieve the above purpose, the present invention adopts the following technical scheme: A multifunctional cutting device for door processing, including a workbench, and further including: a connecting base arranged on the top of the workbench, a support plate hinged on the top of the connecting base, a servo motor fixedly connected to the top of the support plate, and the output end of the servo motor is drivingly connected to a cutting saw blade; a protective housing installed on the side wall of the support plate, the protective housing wrapping the outer surface of the cutting saw blade; a rotating wheel installed on the side wall of the cutting saw blade, a linkage rod is rotationally connected to the surface of the rotating wheel through a rotating shaft, and the end of the linkage rod is rotationally connected to a moving rod through a rotating shaft; a jetting mechanism fixed on the side wall of the protective housing, when the moving rod moves the jetting mechanism downward, air blowing operation is carried out inside the protective housing; a magnetic attraction mechanism arranged inside the protective housing for magnetic attraction operation of debris inside the protective housing.

[0006] Preferably, the jet mechanism includes a piston cylinder fixed on the surface of the protective housing. A piston rod is slidably connected inside the piston cylinder. The piston rod is fixedly connected to the bottom of the moving rod. An air outlet pipe and a negative pressure pipe are respectively fixedly connected to the surface of the piston cylinder. The surface of the air outlet pipe is fixedly connected to a jet pipe through a pipeline. The jet pipe is fixedly connected to the inside of the protective housing and is located on both sides of the cutting saw blade.

[0007] Preferably, the magnetic attraction mechanism includes a semi-closed housing fixed inside the protective housing. A connecting shaft is rotatably connected to the surface of the semi-closed housing through a bearing. A circular magnet is fixedly connected to the end of the connecting shaft. An erasing rod is connected inside the semi-closed housing. The erasing rod is in contact with the surface of the circular magnet.

[0008] Preferably, a collecting box is communicated with the side wall of the semi-closed housing through a pipeline. The collecting box is communicated with the end of the negative pressure pipe. The collecting box is fixedly connected to the front surface of the protective housing.

[0009] Preferably, a partition board is fixedly connected inside the collecting box. A filter screen is installed directly above the partition board. The filter screen is located on one side of the negative pressure pipe.

[0010] Preferably, a baffle is rotatably connected to the inside of the partition board through a rotating shaft. A torsion spring is fixedly connected between the baffle and the partition board.

[0011] Preferably, a gear disc is connected to the surface of the connecting shaft. A rack is meshed with the surface of the gear disc. The rack is fixedly connected to the side wall of the piston rod.

[0012] Preferably, a guide plate is fixedly connected inside the semi-closed housing. The guide plate is located directly below the circular magnet.

[0013] Preferably, a return spring is sleeved on the surface of the piston rod. The return spring abuts against the inner top wall of the piston cylinder.

[0014] Preferably, a cylinder is hinged to the front surface of the connecting base. The output end of the cylinder is hinged to the bottom of the support plate.

[0015] Compared with the prior art, the present invention provides a multi-functional cutting device for door processing, which has the following beneficial effects: 1. For this multi-functional cutting device for door processing, through the cooperation among the piston cylinder, the piston rod, the air outlet pipe and the jet pipe, it can generate high-pressure gas to clean the debris at the serrations of the cutting saw blade, prevent the debris from getting stuck at the serrations and hindering the cutting efficiency of the door workpiece, thereby restoring the sharpness and cutting effect of the cutting saw blade.

[0016] 2. The multi-functional cutting device for door processing can magnetically attract the metal debris at the serrations of the cutting saw blade through the cooperation among the semi-closed housing, the connecting shaft, the circular magnet and the erasing rod. Through this setting, the magnetic attraction work of mutual attraction of the metal debris in the serrations is realized, thus avoiding the problem that the metal debris is stuck in the serrations of the cutting saw blade and affecting the later cutting quality, and further improving the working quality of cutting.

[0017] 3. The multi-functional cutting device for door processing can centrally collect the adsorbed metal debris through the cooperation among the collection box, the isolation plate, the filter screen and the baffle. Through this setting, it is realized that the debris can be properly stored to avoid the debris falling onto the surface of the workpiece and affecting the later cutting operation, and further reducing the occurrence of accidents.

[0018] For the parts not involved in this device, they are the same as the prior art or can be realized by using the prior art. The present invention can generate high-pressure gas to clean the debris at the serrations of the cutting saw blade, and at the same time, the magnetic attraction work of mutual attraction of the metal debris in the serrations is carried out to prevent the debris from being stuck at the serrations and hindering the cutting efficiency of the door workpiece, thereby restoring the sharpness and cutting effect of the cutting saw blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of a multi-functional cutting device for door processing proposed by the present invention; Figure 2 It is a schematic installation structure diagram of a servo motor of a multi-functional cutting device for door processing proposed by the present invention; Figure 3 It is a schematic structural diagram of a jetting mechanism of a multi-functional cutting device for door processing proposed by the present invention Figure 1 ; Figure 4 It is a schematic structural diagram of a jetting mechanism of a multi-functional cutting device for door processing proposed by the present invention Figure 2 ; Figure 5 It is a schematic structural diagram of a magnetic attraction mechanism of a multi-functional cutting device for door processing proposed by the present invention; Figure 6 It is a schematic structural diagram of a collection box of a multi-functional cutting device for door processing proposed by the present invention; Figure 7 It is a schematic sectional view of a piston cylinder of a multi-functional cutting device for door processing proposed by the present invention; Figure 8 It is a schematic front view of a multi-functional cutting device for door processing proposed by the present invention; Figure 9 It is a schematic structural diagram of a torsion spring of a multi-functional cutting device for door processing proposed by the present invention.

[0020] In the figure: 1, workbench; 2, connecting base; 21, cylinder; 3, support plate; 4, servo motor; 41, cutting saw blade; 5, protective housing; 6, rotating wheel; 61, linkage rod; 62, moving rod; 7, air jet mechanism; 71, piston cylinder; 72, piston rod; 721, return spring; 73, air outlet pipe; 74, negative pressure pipe; 75, air jet pipe; 8, magnetic attraction mechanism; 81, semi-closed housing; 82, connecting shaft; 83, circular magnet; 84, erasing rod; 85, gear disk; 851, rack; 86, collection box; 861, partition board; 862, filter screen; 863, baffle; 864, torsion spring; 87, deflector plate. Specific embodiments

[0021] 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.

[0022] 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", etc. is based on the orientation or positional relationship shown in the accompanying 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 to the present invention.

[0023] In one embodiment, referring to Figures 1 - 9 , a multi-functional cutting device for door processing, including a workbench 1, further including: a connecting base 2 provided on the top of the workbench 1, a support plate 3 is hinged to the top of the connecting base 2, a servo motor 4 is fixedly connected to the top of the support plate 3, and the output end of the servo motor 4 is drivingly connected to a cutting saw blade 41; a protective housing 5 installed on the side wall of the support plate 3, and the protective housing 5 wraps the outer surface of the cutting saw blade 41; a rotating wheel 6 installed on the side wall of the cutting saw blade 41, a linkage rod 61 is rotatably connected to the surface of the rotating wheel 6 through a rotating shaft, and the end of the linkage rod 61 is rotatably connected to a moving rod 62 through a rotating shaft; an air jet mechanism 7, fixed to the side wall of the protective housing 5, and when the moving rod 62 moves the air jet mechanism 7 downward, air blowing operation is performed inside the protective housing 5; a magnetic attraction mechanism 8, provided inside the protective housing 5, for performing debris magnetic attraction operation inside the protective housing 5, a cylinder 21 is hinged to the front of the connecting base 2, and the output end of the cylinder 21 is hinge-connected to the bottom of the support plate 3.

[0024] With such a solution, when the cutting saw blade 41 rotates, it can drive the rotating wheel 6 to rotate. When the rotating wheel 6 rotates, it can drive the moving rod 62 of the linkage rod 61 to move reciprocally up and down. During the reciprocating up and down movement of the moving rod 62, it drives the air jet mechanism 7 to work. Through the air jet mechanism 7, the debris at the serrations of the cutting saw blade 41 can be continuously cleaned, preventing the debris from getting stuck at the serrations and affecting the cutting quality of the later door workpiece.

[0025] During specific operation, during the process of cutting the door workpiece, first, the fixture on the top of the workbench 1 is used to clamp and fix the door workpiece. Then, it is driven by the air cylinder 21 between the connecting base 2 and the support plate 3, which can drive the support plate 3 to move downward. Driven by the servo motor 4 on the top of the support plate 3, the cutting saw blade 41 is driven to rotate at a high speed under the drive of the servo motor 4. The cutting saw blade 41 rotates at a high speed to cut the door workpiece. The air cylinder 21 drives the cutting saw blade 41 to adjust to different heights, so as to control the cutting depth of the cutting saw blade 41 on the surface of the door workpiece. The protective housing 5 wraps the surface of the cutting saw blade 41, which can protect the upper part of the cutting saw blade 41 and avoid potential safety hazards caused by the upward movement of cutting debris. At the same time, when the cutting saw blade 41 rotates, it drives the rotating wheel 6 on the surface to rotate. The rotating wheel 6 drives the linkage rod 61 on the surface to rotate, and the linkage rod 61 drives the moving rod 62 to move up and down. During the up and down movement of the moving rod 62, it drives the air jet mechanism 7 to work. Through the air jet mechanism 7, the surface of the cutting saw blade 41 after cutting can be blown, so as to process the metal debris stuck in the serrations of the cutting saw blade 41 and prevent the metal debris from getting stuck at the serrations of the cutting saw blade 41 and affecting the cutting quality of the later door workpiece.

[0026] Supplementary note, the transmission method between the servo motor 4 and the cutting saw blade 41 is an existing technology, generally composed of a transmission shaft, two transmission wheels and a belt. The transmission shaft rotates at the bottom of the support plate 3 through a bearing, and the cutting saw blade 41 is installed at the end of the transmission shaft. Then, the two transmission wheels are respectively fixed at the output ends of the transmission shaft and the servo motor 4, and then the belt is sleeved on the surfaces of the two transmission wheels. Therefore, during the operation of the servo motor 4, it drives the cutting saw blade 41 to rotate; The connection between the connecting base 2 and the workbench 1 can be a rotational connection. Through the rotational connection, the base can be changed, so as to drive the cutting saw blade 41 to rotate at an angle, thus meeting the cutting requirements of different door workpieces.

[0027] In one embodiment, refer to Figure 2 、 Figure 3 and Figure 7, A multi-functional cutting device for door processing, including a workbench 1, and further including: a connecting base 2 arranged on the top of the workbench 1, a support plate 3 is hinged on the top of the connecting base 2, a servo motor 4 is fixedly connected to the top of the support plate 3, and the output end of the servo motor 4 is drivingly connected to a cutting saw blade 41; a protective housing 5 installed on the side wall of the support plate 3, and the protective housing 5 wraps the outer surface of the cutting saw blade 41; a rotating wheel 6 installed on the side wall of the cutting saw blade 41, a linkage rod 61 is rotatably connected to the surface of the rotating wheel 6 through a rotating shaft, and the end of the linkage rod 61 is rotatably connected to a moving rod 62 through a rotating shaft; a jetting mechanism 7, fixed on the side wall of the protective housing 5, when the moving rod 62 moves the jetting mechanism 7 downward, air blowing operation is carried out inside the protective housing 5; a magnetic attraction mechanism 8, arranged inside the protective housing 5, used for carrying out magnetic attraction operation on debris inside the protective housing 5. The jetting mechanism 7 includes a piston cylinder 71 fixed on the surface of the protective housing 5, a piston rod 72 is slidably connected inside the piston cylinder 71, and the piston rod 72 is fixedly connected to the bottom of the moving rod 62. An air outlet pipe 73 and a negative pressure pipe 74 are respectively fixedly connected to the surface of the piston cylinder 71. The surface of the air outlet pipe 73 is fixedly connected to a jet pipe 75 through a pipeline, and the jet pipe 75 is fixedly connected to the inside of the protective housing 5 and is located on both sides of the cutting saw blade 41. A return spring 721 is sleeved on the surface of the piston rod 72, and the return spring 721 abuts against the inner top wall of the piston cylinder 71.

[0028] Adopting such a scheme, when the piston rod 72 moves downward inside the piston cylinder 71, high-pressure gas can be conveyed into the air outlet pipe 73 and the jet pipe 75. By jetting the high-pressure gas to the teeth of the cutting saw blade 41, the metal debris at the teeth can be easily impacted and dropped or loosened, avoiding the situation that the teeth of the cutting saw blade 41 are stuck by metal debris and affecting the later processing quality of the door.

[0029] During specific operation, when the piston rod 72 moves downward inside the piston cylinder 71, the gas inside the piston cylinder 71 can be compressed. After compression, the high-pressure gas is conveyed to the jet pipe 75 through the air outlet pipe 73 for ejection. Since the air outlet of the jet pipe 75 is located on both sides of the cutting saw blade 41, the high-pressure gas in the jet pipe 75 is jetted to the teeth of the cutting saw blade 41. When the high-pressure gas jets to the cutting saw blade 41, it can better impact and drop or loosen the metal debris at the teeth for later magnetic attraction treatment. When the piston rod 72 moves downward, an adsorption force will be generated in the negative pressure pipe 74, and at the same time, the debris that can fall off can be adsorbed. Through the setting of the return spring 721, it is convenient to better reset the piston rod 72.

[0030] Supplementary explanation, three-way valves are arranged on the surfaces of the air outlet pipe 73 and the negative pressure pipe 74, and the three-way valves are used to switch the air inlet and outlet of the piston rod 72 and the air outlet pipe 73.

[0031] In one embodiment, referring to Figure 4 、Figure 5 and Figure 6 , a multi-functional cutting device for door processing, including a workbench 1, further comprising: a connecting base 2 arranged on the top of the workbench 1, a support plate 3 is hinged on the top of the connecting base 2, a servo motor 4 is fixedly connected to the top of the support plate 3, and the output end of the servo motor 4 is drivingly connected to a cutting saw blade 41; a protective housing 5 installed on the side wall of the support plate 3, and the protective housing 5 wraps the outer surface of the cutting saw blade 41; a rotating wheel 6 installed on the side wall of the cutting saw blade 41, a linkage rod 61 is rotatably connected to the surface of the rotating wheel 6 through a rotating shaft, and the end of the linkage rod 61 is rotatably connected to a moving rod 62 through a rotating shaft; a jetting mechanism 7, fixed on the side wall of the protective housing 5, when the moving rod 62 moves the jetting mechanism 7 downward to blow air inside the protective housing 5; a magnetic attraction mechanism 8, arranged inside the protective housing 5, used for performing magnetic attraction operation on debris inside the protective housing 5, the magnetic attraction mechanism 8 includes a semi-closed housing 81 fixed inside the protective housing 5, a connecting shaft 82 is rotatably connected to the surface of the semi-closed housing 81 through a bearing, a circular magnet 83 is fixedly connected to the end of the connecting shaft 82, an erasing rod 84 is connected inside the semi-closed housing 81, and the erasing rod 84 is in contact with the surface of the circular magnet 83, a gear disc 85 is connected to the surface of the connecting shaft 82, a rack 851 is meshed with the surface of the gear disc 85, the rack 851 is fixedly connected to the side wall of the piston rod 72, and a deflector plate 87 is fixedly connected inside the semi-closed housing 81, and the deflector plate 87 is located directly below the circular magnet 83.

[0032] Adopting such a scheme, through the setting of the circular magnet 83 inside the semi-closed housing 81, the magnetic attraction work of attracting the metal debris in the saw teeth of the cutting saw blade 41 can be carried out by the circular magnet 83, so as to centrally collect the debris in the saw teeth of the cutting saw blade 41, thereby avoiding the problem that the metal debris gets stuck in the saw teeth of the cutting saw blade 41 and affecting the later cutting quality.

[0033] During specific work, the semi-closed housing 81 is fixed inside the protective housing 5, and then the connecting shaft 82 inside the semi-closed housing 81 is used to support the circular magnet 83. Since the circular magnet 83 is close to one side of the cutting saw blade, the circular magnet 83 is used to perform magnetic attraction work on the metal debris in the saw teeth of the cutting saw blade 41 and the metal debris inside the protective housing 5, so as to prevent the metal debris from falling onto the surface of the door workpiece, thereby hindering the later cutting efficiency of the door workpiece. When the circular magnet 83 adsorbs a certain amount of metal debris, the circular magnet 83 is driven to rotate by the connecting shaft 82. During the rotation of the circular magnet 83, it contacts the erasing rod 84, and the metal debris magnetically attracted on the surface of the circular magnet 83 can be scraped and cleaned by the erasing rod 84. The cleaned metal debris will fall to the bottom of the semi-closed housing 81 under the action of gravity. By setting the inclined surface of the deflector plate 87 at the bottom of the semi-closed housing 81, the debris can be better cleaned and discharged in a guided manner; Through the arrangement of the surface gear disc 85 on the surface of the semi-closed housing 81, when the piston rod 72 drives the rack 851 on the surface to move downward, since the rack 851 meshes with the surface of the gear disc 85, the connecting shaft 82 fixed to the gear disc 85 is driven to rotate clockwise. The connecting shaft 82 drives the circular magnet 83 on the surface to rotate clockwise synchronously. When the circular magnet 83 rotates clockwise and contacts the erasing rod 84, the metal debris on the circular magnet 83 can be automatically removed. At the same time, when the piston rod 72 moves downward, an adsorption force will be generated inside the negative pressure pipe 74. Through the adsorption force, the removed metal debris can be better adsorbed and concentrated for collection. When the piston rod 72 drives the rack 851 to move upward, the rack 851 drives the connecting shaft 82 fixed to the gear disc 85 to rotate counterclockwise, thereby resetting the circular magnet 83 at the end of the connecting shaft 82. Since the surface of the circular magnet 83 returns to the best state at this time, it is convenient to adsorb the saw teeth of the cutting saw blade 41 again.

[0034] Supplementary note, the magnetic adsorption mechanism 8 can be set in two groups. The two groups of magnetic adsorption mechanisms 8 are respectively located on both sides of the protective housing 5. The two groups of magnetic adsorption mechanisms 8 are set to work alternately. When the first group of magnetic adsorption mechanisms 8 adsorbs the metal to be discharged, the second group of magnetic adsorption mechanisms 8 alternates with the first group of magnetic adsorption mechanisms 8 to adsorb the metal debris. By setting in an alternating manner, the situation that the metal debris gets stuck in the saw teeth of the cutting saw blade 41 can be greatly reduced.

[0035] In one embodiment, referring to Figure 4 、 Figure 5 、 Figure 6 and Figure 9 , the side wall of the semi-closed housing 81 is connected to a collection box 86 through a pipeline. The collection box 86 is connected to the end of the negative pressure pipe 74. The collection box 86 is fixedly connected to the front surface of the protective housing 5. An isolation plate 861 is fixedly connected inside the collection box 86. A filter screen 862 is installed directly above the isolation plate 861. The filter screen 862 is located on one side of the negative pressure pipe 74. A baffle 863 is rotatably connected to the inside of the isolation plate 861 through a rotating shaft. A torsion spring 864 is fixedly connected between the baffle 863 and the isolation plate 861.

[0036] With such a scheme, through the fixation of the isolation plate 861 inside the collection box 86, two chambers can be formed inside the collection box 86, namely the first chamber and the second chamber. The first chamber is inside the filter screen 862, and the second chamber is at the bottom of the isolation plate 861.

[0037] During specific operation, the collecting box 86 is connected to the pipeline of the semi-closed housing 81 through the side wall, so that the discharged debris inside the semi-closed housing 81 can be collected. Since the collecting box 86 is connected to the negative pressure pipe 74, when the suction force is generated inside the negative pressure pipe 74, the metal debris collected in the semi-closed housing 81 can be guided into the first chamber. The filter screen 862 is arranged on the top of the partition plate 861 in the first chamber, which can filter the metal debris in the first chamber. The filtered metal debris will accumulate above the partition plate 861, thus preventing the metal debris from entering the negative pressure pipe 74. When the metal debris accumulates to a certain rated weight, the baffle 863 above the partition plate 861 will be rotated and opened, so that the debris above the partition plate 861 in the first chamber will fall into the second chamber for collection. When the weight of the debris is less than the rated value, at this time, under the elastic force of the torsion spring 864, the baffle 863 will be automatically reset and closed, thus preventing the baffle 863 from being opened for a long time, resulting in a reduction in the working efficiency of the negative pressure pipe 74, and at the same time preventing the debris inside the second chamber from being adsorbed out, so as to ensure that the second chamber can effectively recycle the metal debris uniformly and reduce resource waste.

[0038] It should be added that a cleaning door is rotatably connected to the front of the collecting box 86 through a hinge, which can regularly handle the collected debris in the second chamber, avoiding the problem that the debris accumulates for a long time and becomes saturated, resulting in inability to collect.

[0039] 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, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A multifunctional cutting device for door processing, comprising a workbench (1), characterized in that: Also includes: A connecting base (2) is arranged on the top of the workbench (1), the top of the connecting base (2) is hingedly connected to a support plate (3), the top of the support plate (3) is fixedly connected to a servo motor (4), and the output end of the servo motor (4) is drivingly connected to a cutting saw blade (41); A protective shell (5) mounted on a side wall of the support plate (3), wherein the protective shell (5) wraps around an outer surface of the cutting saw blade (41); A rotating wheel (6) mounted on a side wall of the cutting saw blade (41), wherein a surface of the rotating wheel (6) is rotatably connected to a linkage rod (61) via a rotating shaft, and an end of the linkage rod (61) is rotatably connected to a moving rod (62) via a rotating shaft; The jet mechanism (7) is fixed to the side wall of the protective shell (5), and when the movable rod (62) moves the jet mechanism (7) downward, air is blown into the protective shell (5); The magnetic attraction mechanism (8) is arranged inside the protective shell (5) and is used to perform a magnetic attraction operation on debris inside the protective shell (5).

2. A multifunctional cutting device for door processing according to claim 1, characterized in that: The jet mechanism (7) comprises a piston cylinder (71) fixed on the surface of the protective shell (5); a piston rod (72) is slidably connected to the interior of the piston cylinder (71); the piston rod (72) is fixedly connected to the bottom of the moving rod (62); an air outlet pipe (73) and a negative pressure pipe (74) are respectively fixedly connected to the surface of the piston cylinder (71); a jet pipe (75) is fixedly connected to the surface of the air outlet pipe (73) via a pipeline; the jet pipe (75) is fixedly connected to the interior of the protective shell (5) and is located on both sides of the cutting saw blade (41).

3. The multifunctional cutting device for door processing according to claim 1, characterized in that: The magnetic attraction mechanism (8) comprises a semi-enclosed shell (81) fixed inside the protective shell (5); the surface of the semi-enclosed shell (81) is rotatably connected to a connecting shaft (82) via a bearing; the end of the connecting shaft (82) is fixedly connected to a circular magnet (83); the interior of the semi-enclosed shell (81) is connected to an erasing rod (84); the erasing rod (84) is in contact with the surface of the circular magnet (83).

4. A multifunctional cutting device for door processing according to claim 3, characterized in that: The side wall of the semi-enclosed shell (81) is connected to a collection box (86) via a pipeline, the collection box (86) is connected to the end of the negative pressure tube (74), and the collection box (86) is fixedly connected to the front side of the protective shell (5).

5. The multifunctional cutting device for door processing according to claim 4, characterized in that: An isolation plate (861) is fixedly connected to the interior of the collection box (86), a filter screen (862) is installed directly above the isolation plate (861), and the filter screen (862) is located on one side of the negative pressure tube (74).

6. A multifunctional cutting device for door processing according to claim 5, characterized in that: The interior of the isolation plate (861) is rotatably connected to a baffle plate (863) via a rotating shaft, and a torsion spring (864) is fixedly connected between the baffle plate (863) and the isolation plate (861).

7. The multifunctional cutting device for door processing according to claim 3, characterized in that: The surface of the connecting shaft (82) is connected to a gear plate (85), the surface of the gear plate (85) is meshingly connected to a rack (851), and the rack (851) is fixedly connected to the side wall of the piston rod (72).

8. The multifunctional cutting device for door processing according to claim 3, characterized in that: A guide plate (87) is fixedly connected to the interior of the semi-enclosed shell (81), and the guide plate (87) is located directly below the circular magnet (83).

9. The multifunctional cutting device for door processing according to claim 2, characterized in that: A return spring (721) is sleeved on the surface of the piston rod (72), and the return spring (721) is in contact with the inner top wall of the piston cylinder (71).

10. The multifunctional cutting device for door processing according to claim 1, characterized in that: A cylinder (21) is hingedly connected to the front of the connecting base (2), and an output end of the cylinder (21) is hingedly connected to the bottom of the supporting plate (3).

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