Cutting head based on sealed dust removal

Abstract

The present invention relates to the field of panel cutting technology, and specifically to a cutting head based on sealed dust removal, which mainly solves the technical problem of the incompatibility between cost and cutting yield in existing panel cutting. The cutting head includes a cover body, a power element, a transmission assembly, a slider, a connecting sleeve and a cutter head. A closed space is formed by the cover body, and standard parts such as the transmission assembly and the slider are placed in the closed space. The cutter head is connected to the slider through a connecting sleeve that passes through a avoidance hole at the bottom of the closed space. The closed space is also provided with a positive pressure air intake joint. When in use, positive pressure gas is input into the closed space through the positive pressure air intake structure, and the gas is ejected through the gap between the connecting sleeve and the cover body, so that a dynamic cavity with downward airflow is formed in the closed space. The airflow in this cavity is long-lasting, ensuring that dust will not invade the cavity, thereby avoiding dust from being stuck in the installation gap inside the mechanism, thereby ensuring the service life of each standard part and ultimately ensuring the cutting yield.

Description

Technical Field

[0001] The present invention relates to the technical field of panel cutting, and in particular to a cutting head based on sealed dust removal. Background Art

[0002] In the semiconductor display panel manufacturing industry, panel cutting is a critical post-process, and the quality of the cutting process directly determines the final quality of the panel display. Currently, with the rapid advancement of panel products, cutting processes are undergoing iterative upgrades, and the requirements for cutting accuracy are gradually increasing. During the cutting process, the cutter head uses a diamond wheel to separate the panel. This process generates a large amount of glass dust, which can splash onto the cutter head mechanism, particularly getting stuck in the internal mounting gaps. This can scratch the working surface of the standard component, shorten the service life of the standard component, and ultimately reduce the cutting yield.

[0003] To prevent dust from affecting the cutting yield, two main improvement methods are currently used: First, the material and surface treatment of the standard parts of the cutter head are designed to be wear-resistant and high-hardness, to improve the fatigue strength and service life of the standard parts, and to reduce the impact of dust on the standard parts, thereby ensuring the cutting yield. However, this method significantly increases the equipment cost and development cycle; second, improvements are made to the scribing process, optimizing the cutting pressure of the cutter wheel, and controlling the service life and model matching of the cutter wheel, effectively reducing the occurrence of large particles of glass dust during scribing. However, since cutting itself is the friction between the cutter wheel and the glass, small particles of glass dust cannot be avoided, and there is still a risk of splashing onto the surface of the standard parts. Therefore, there is an urgent need for a cutting head that is low-cost and can effectively prevent dust from affecting the cutting yield. Summary of the Invention

[0004] In order to overcome the technical defect of the existing panel cutting that the cost and cutting yield cannot be taken into account at the same time, the present invention provides a cutting head based on sealed dust removal.

[0005] The cutting head based on sealed dust removal provided by the present invention comprises:

[0006] The cover body has an interior forming a closed space, a relief hole is provided at the bottom of the closed space, and a positive pressure air inlet joint is connected to the top of the closed space;

[0007] a power element, which is installed on the top outside of the cover or in the enclosed space;

[0008] a transmission assembly installed in the enclosed space and linked with the power element to output lifting motion;

[0009] a slider installed in the enclosed space and capable of vertically sliding relative to the cover, the slider being connected to the transmission assembly to achieve lifting;

[0010] A connecting sleeve, the gap of which passes through the avoidance hole, and the upper end of the connecting sleeve is fixedly connected to the slider;

[0011] The cutter head is inserted into the lower end of the connecting sleeve.

[0012] Optionally, the cover body includes:

[0013] a back plate, which is arranged vertically;

[0014] an upper horizontal plate fixed to the upper end of the back plate;

[0015] a lower horizontal plate fixed to the lower end of the back plate, the lower horizontal plate being provided with the avoidance hole;

[0016] There are at least two side panels, both of which are arranged around the upper horizontal panel and the lower horizontal panel.

[0017] Optionally, sealing strips are provided at the junctions between the side panels and the upper transverse panel, the junctions between the side panels and the lower transverse panel, and the junctions between the side panels and the back panel.

[0018] Optionally, the power element is a servo motor, the servo motor is located outside the top of the cover, and the output shaft of the servo motor extends into the enclosed space.

[0019] Optionally, the transmission assembly includes:

[0020] a cylindrical cam connected to the bottom end of the output shaft of the servo motor, wherein the lower end surface of the cylindrical cam forms a curved profile;

[0021] a roller mounted on the slider with its axis arranged horizontally, the roller being in contact with the curved profile of the cylindrical cam;

[0022] The two ends of the return spring are respectively connected to the cover body and the slider and are used to make the slider have an upward trend.

[0023] Optionally, a limiting bolt is screwed onto the slider, and the limiting bolt extends outward from below the slider to cooperate with the bottom of the cover body to complete the limiting.

[0024] Optional sealed dust extraction based cutting heads also include:

[0025] The mounting base is a barrel-shaped structure with the barrel mouth facing upward, a through hole is opened in the middle of the barrel bottom of the barrel structure, the bottom end of the connecting sleeve is fixedly connected to the barrel bottom of the barrel structure, and the inner diameter of the barrel structure is larger than the outer diameter of the connecting sleeve to form a gap between the connecting sleeve and the barrel structure, and the cutting head passes through the through hole;

[0026] The dust removal cover is a cylindrical structure with a top end fixed to the bottom of the cover body, and the dust removal cover extends into the gap.

[0027] Optionally, the cutter head includes a tool holder, a bearing and a cutter wheel, the bearing is mounted on the top of the tool holder and is integrally inserted into the lower end of the connecting sleeve, the cutter wheel is mounted on the bottom end of the tool holder, an elastic plunger is provided on the mounting seat, and a positioning hole is provided on the tool holder corresponding to the elastic plunger.

[0028] Optionally, the cutting head based on sealed dust removal also includes a blowing head and an air suction head, both of which are fixed under the cover body and are respectively located on both sides of the cutting head. The blowing head faces the cutting wheel and is used to blow the dust generated by cutting to the location of the air suction head.

[0029] The technical solution provided by the present invention has the following advantages compared with the prior art:

[0030] The cutting head based on sealed dust removal provided by the present invention forms a closed space through a cover body, and standard parts such as a transmission assembly and a slider are placed in the closed space. The cutting head is connected to the slider through a connecting sleeve that passes through the avoidance hole at the bottom of the closed space. The closed space is also provided with a positive pressure air intake joint. When in use, positive pressure gas is input into the closed space through the positive pressure air intake structure, and the gas is ejected through the gap between the connecting sleeve and the cover body, so that a dynamic cavity with downward airflow is formed in the closed space. The airflow in this cavity is long-circuited, ensuring that dust will not invade the cavity, thereby avoiding dust from being stuck in the installation gap inside the mechanism, thereby ensuring the service life of each standard part and ultimately ensuring the cutting yield. The cutting head provided by the present invention is only a simple improvement to the mechanical structure of the cutting head, and does not require improvement to the material and surface treatment process of key parts. It can take into account both cost and cutting yield at the same time, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0033] Figure 1 A schematic diagram showing the overall structure of a cutting head according to an embodiment of the present invention;

[0034] Figure 2A schematic diagram showing the internal structure of a cutting head according to an embodiment of the present invention from a first angle;

[0035] Figure 3 A schematic diagram showing the internal structure of the cutting head according to the embodiment of the present invention from a second angle;

[0036] Figure 4 A diagram showing a state of a slider in an upper movement position according to an embodiment of the present invention;

[0037] Figure 5 A diagram showing a state of a slider in a moving lower position according to an embodiment of the present invention;

[0038] Figure 6 A partial cross-sectional view of the assembly structure of the cutter head, connecting sleeve, dust cover and mounting seat in an embodiment of the present invention is shown.

[0039] In the picture:

[0040] 1. Cover body; 11. Back plate; 12. Upper horizontal plate; 13. Lower horizontal plate; 131. Avoidance hole; 14. Side plate; 15. Sealing strip; 16. Positive pressure air inlet connector; 17. Slide rail; 2. Power element; 3. Transmission assembly; 31. Cylindrical cam; 32. Roller; 33. Return spring; 4. Slider; 41. Limit bolt; 5. Connecting sleeve; 6. Cutting head; 61. Cutting head; 62. Bearing; 63. Cutting wheel; 7. Mounting seat; 71. Elastic plunger; 72. First annular groove; 73. Second annular groove; 8. Dust hood; 81. Annular flange; 91. Blowing head; 92. Suction head. DETAILED DESCRIPTION

[0041] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the scheme of the present invention will be further described below. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0042] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms based on specific circumstances.

[0043] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present invention, rather than all the embodiments.

[0044] The following combination Figures 1 to 6 Specific embodiments of the present invention are described in detail.

[0045] This embodiment provides a cutting head based on sealed dust removal, including a cover body 1, a power element 2, a transmission assembly 3, a slider 4, a connecting sleeve 5 and a cutting head 6.

[0046] The interior of the cover body 1 forms a closed space, and a relief hole 131 is opened at the bottom of the closed space, and a positive pressure air inlet joint 16 is connected to the top of the closed space.

[0047] It is easy to understand that when the enclosed space is in use, positive pressure gas is filled into it through the positive pressure air inlet connector 16 and ejected from the avoidance hole 131 at the bottom. Therefore, except for the positive pressure air inlet connector 16 at the top and the avoidance hole 131 at the bottom, the rest of the enclosed space needs to be sealed.

[0048] Specifically, the cover body 1 of this embodiment includes a back panel 11, an upper transverse panel 12, a lower transverse panel 13, and side panels 14; the back panel 11 is arranged vertically; the upper transverse panel 12 is fixed to the upper end of the back panel 11; the lower transverse panel 13 is fixed to the lower end of the back panel 11, and the lower transverse panel 13 is provided with an escape hole 131; at least two side panels 14 are provided and are both arranged around the upper transverse panel 12 and the lower transverse panel 13. The upper transverse panel 12, the lower transverse panel 13, the back panel 11, and all the side panels 14 are spliced ​​together to form the cover body 1 and enclose the enclosed space.

[0049] More specifically, the upper horizontal plate 12 and the lower horizontal plate 13 are both rectangular, three side plates 14 are provided, and the three side plates 14 and the back plate 11 are respectively provided corresponding to the four sides of the upper horizontal plate 12 .

[0050] More specifically, sealing strips 15 are provided at the junctions between the side panels 14 and the upper cross panel 12, the junctions between the side panels 14 and the lower cross panel 13, and the junctions between the side panels 14 and the back panel 11. Sealing strips 15 ensure a tight seal at these junctions. In this embodiment, sealing strips 15 are also provided at the junctions between every two adjacent side panels 14 of the three side panels 14.

[0051] The power element 2 is installed on the top outside of the cover 1 or in the closed space.

[0052] Specifically, the power element 2 in this embodiment is a servo motor, which is located outside the top of the housing 1, with its output shaft extending into the enclosed space. The servo motor itself has a housing that protects against dust, so this embodiment places the servo motor outside the enclosed space, thereby reducing the required volume of the enclosed space.

[0053] The transmission assembly 3 is installed in the closed space and is linked with the power element 2 to output lifting motion.

[0054] Specifically, the transmission assembly 3 of this embodiment includes a cylindrical cam 31, a roller 32, and a return spring 33. The cylindrical cam 31 is connected to the bottom end of the servo motor's output shaft, and the lower end surface of the cylindrical cam 31 forms a curved profile. The roller 32 is mounted on the slider 4 with its axis arranged horizontally, and the roller 32 contacts the curved profile of the cylindrical cam 31. The two ends of the return spring 33 are respectively connected to the cover 1 and the slider 4, and are used to cause the slider 4 to have an upward tendency. During operation, the servo motor's output shaft rotates, driving the cylindrical cam 31 to rotate. When the position of the cylindrical cam 31's curved profile corresponding to the position of the roller 32 gradually changes from a high point to a low point, the roller 32 is forced to move downward, thereby driving the slider 4, the connecting sleeve 5, and the cutter head 6 to move downward. When the position of the cylindrical cam 31's curved profile corresponding to the position of the roller 32 gradually changes from a low point to a high point, the roller 32 rises under the action of the return spring 33 to maintain contact with the cylindrical cam 31, thereby causing the slider 4, the connecting sleeve 5, and the cutter head 6 to move upward.

[0055] More specifically, the return spring 33 of this embodiment is a tension spring, the upper end of which is connected to the cover 1 and the lower end to the slider 4, thereby causing the slider 4 to have an upward tendency. In other embodiments, the return spring 33 can also be configured as a compression spring, the upper end of which is connected to the slider 4 and the lower end is connected to the cover 1, thereby also causing the slider 4 to have an upward tendency.

[0056] It should be noted that this embodiment utilizes a servo motor in conjunction with a cylindrical cam 31, a roller 32, and a return spring 33 to generate the lifting motion. Controlling the servo motor's rotation angle controls the lift displacement of the cutter head 6, resulting in a compact structure and high precision. In other embodiments, the power element 2 and transmission assembly 3 may also be replaced by an electric push rod to generate the lifting motion.

[0057] The slider 4 is installed in the closed space and can slide vertically relative to the cover body 1. The slider 4 is connected to the transmission assembly 3 to achieve lifting.

[0058] Specifically, in this embodiment, a slide rail 17 is fixed on the inner side of the back plate 11 of the cover body 1 , and the slider 4 is connected to the slide rail 17 to achieve vertical sliding relative to the cover body 1 .

[0059] Furthermore, in this embodiment, a limit bolt 41 is screwed onto the slider 4. The limit bolt 41 extends outward from the bottom of the slider 4 to cooperate with the bottom of the cover body 1 to complete the limit. By turning the adjustment bolt, the limit position of the slider 4 can be adjusted. Compared with the direct contact between the slider 4 and the lower cross plate 13 for position limitation, the use of the adjustment bolt can prevent collision damage to the slider 4 and the structure above it.

[0060] The connecting sleeve 5 has a gap passing through the avoidance hole 131 , and the upper end of the connecting sleeve 5 is fixedly connected to the slider 4 .

[0061] It should be noted that the gap of the connecting sleeve 5 passes through the avoidance hole 131 to form a gap between the connecting sleeve 5 and the avoidance hole 131, so that when positive pressure gas is input into the closed space through the positive pressure air inlet connector 16, the gap can serve as an exhaust port to discharge the gas, thereby forming a dynamic cavity with downward airflow in the closed space.

[0062] Specifically, a threaded hole is formed on the upper end surface of the connecting sleeve 5 of this embodiment, and the connecting sleeve 5 is fixedly connected to the slider 4 by a screw that passes through the slider 4 and is screwed into the threaded hole.

[0063] The cutter head 6 is inserted into the lower end of the connecting sleeve 5 .

[0064] In addition, the cutting head based on sealed dust removal of this embodiment also includes a mounting seat 7 and a dust cover 8; the mounting seat 7 is a barrel-shaped structure with the barrel mouth facing upward, and a through hole is opened in the middle of the barrel bottom of the barrel-shaped structure, and the bottom end of the connecting sleeve 5 is fixedly connected to the barrel bottom of the barrel structure, and the inner diameter of the barrel structure is larger than the outer diameter of the connecting sleeve 5 to form a gap between the connecting sleeve 5 and the barrel structure, and the cutting head 6 passes through the through hole; the dust cover 8 is a cylindrical structure and the top end is fixed to the bottom of the cover body 1, and the dust cover 8 extends into the gap. The mounting base 7 and the dust cover 8 cooperate to extend the exhaust port of the enclosed space from the gap between the connecting sleeve 5 and the avoidance hole 131 to the gap between the connecting sleeve 5 and the dust cover 8, and then to the gap between the dust cover 8 and the barrel wall of the barrel-shaped structure. In this way, the dust must first pass downward through the gap between the dust cover 8 and the barrel wall of the barrel-shaped structure, and then pass upward through the gap between the dust cover 8 and the connecting sleeve 5, and finally pass through the gap between the connecting sleeve 5 and the avoidance hole 131 to enter the enclosed space, which increases the difficulty of dust entering the enclosed space. Combined with the positive pressure dynamic cavity formed in the enclosed space, it can better ensure that the standard parts in the enclosed cavity are not contaminated by dust.

[0065] It is easy to understand that the so-called barrel-shaped structure is a cylindrical cavity structure with one end open, and the so-called tube-shaped structure is a cylindrical cavity structure with both ends open.

[0066] Specifically, the barrel-shaped structure of this embodiment has a first annular groove 72 defined in the area corresponding to the connecting sleeve 5 to limit the position of the connecting sleeve 5; and a second annular groove 73 defined in the area corresponding to the dust cover 8 to further prevent the mounting base 7 from moving up and down relative to the dust cover 8. It should be noted that clearance must be reserved between the dust cover 8 and both the inner and outer walls of the second annular groove 73 to allow airflow to escape.

[0067] Specifically, an annular flange 81 extends horizontally from the top of the dust cover 8 in this embodiment, and the annular flange 81 is fixed to the lower surface of the lower transverse plate 13 .

[0068] Specifically, the cutter head 6 of this embodiment includes a cutter holder 61, a bearing 62, and a cutter wheel 63. The bearing 62 is mounted on the top of the cutter holder 61 and is integrally inserted into the lower end of the connecting sleeve 5. The cutter wheel 63 is mounted on the bottom end of the cutter holder 61. An elastic plunger 71 is provided on the mounting seat 7, and a positioning hole is provided on the cutter holder 61 corresponding to the elastic plunger 71. During installation, the cutter head 6 is inserted into the connecting sleeve 5 so that the bearing 62 is sleeved inside the lower end of the connecting sleeve 5. The circumferential angle of the cutter head 6 can be adjusted through the bearing 62 so that the positioning hole is aligned with the elastic plunger 71. Finally, the elastic plunger 71 is snapped into the positioning hole to complete the installation of the cutter head 6. This cutter head 6 structure is a detachable design, which is more convenient to install and disassemble, and the assembly is stable, which can meet the use requirements.

[0069] In addition, the cutting head based on sealed dust removal of this embodiment also includes a blowing head 91 and an air suction head 92. The blowing head 91 and the air suction head 92 are both fixed under the cover body 1 and are respectively located on both sides of the cutting head 6. The blowing head 91 faces the cutter wheel 63 and is used to blow the dust generated by cutting to the position of the air suction head 92. During marking and cutting, since the cutter wheel 63 is located outside the closed space, dust is very likely to fall into the installation gap between the cutter wheel 63 and the tool holder 61, affecting the normal operation of the cutter wheel 63. Therefore, the cutting head based on sealed dust removal of this embodiment is additionally provided with a blowing head 91 and an air suction head 92. The blowing head 91 blows air toward the cutter wheel 63. The air flow can take away the dust generated by the cutting of the cutter wheel 63 and is blown to the position of the air suction head 92 in a directed manner. The air suction head 92 sucks away the dust, thereby achieving the purpose of rapid dust removal.

[0070] It is easy to understand that the blowing head 91 should be provided with a positive pressure connector and a blowing port, and the suction head 92 should be provided with a negative pressure connector and a suction port.

[0071] The working principle of the cutting head based on sealed dust removal in this embodiment is as follows:

[0072] During cutting, the workbench carrying the panel moves horizontally so that the cutter wheel 63 is located directly above the position to be cut. The servo motor drives the cylindrical cam 31 to rotate, so that the curve profile of the cylindrical cam 31 corresponds to the position of the roller 32 and gradually changes from a high point to a low point, thereby driving the slider 4 to descend. The cutter wheel 63 contacts the panel with a certain pressure, and the workbench drives the panel to move synchronously to complete the cutting. After the cutting is completed, the servo motor drives the cylindrical cam 31 to rotate, so that the curve profile of the cylindrical cam 31 corresponds to the position of the roller 32 and gradually changes from a low point to a high point, so that under the action of the reset spring 33, the slider 4 rises and resets.

[0073] During the cutting process, positive pressure air is introduced into the positive pressure air inlet connector 16, forming a positive pressure cavity in the entire enclosed space. The airflow passes through the gap between the connecting sleeve 5 and the avoidance hole 131, the gap between the connecting sleeve 5 and the dust cover 8, and the gap between the dust cover 8 and the mounting base 7, and then is discharged. In this way, a dynamic cavity with downward airflow is formed in the enclosed space. The airflow in this cavity is unobstructed, ensuring that dust does not invade.

[0074] During the cutting process, the air blowing head 91 is connected to the positive pressure air and blows air to the cutting wheel 63 to prevent dust from falling into the installation gap between the cutting wheel 63 and the tool holder 61. At the same time, the dust is blown to the position of the suction head 92 by the air flow, and the suction head 92 uses negative pressure to suck away the dust, thereby achieving the purpose of rapid dust removal.

[0075] The above is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Although detailed descriptions have been made with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents; and such modifications or replacements do not deviate from the essence of the corresponding technical solutions within the scope of the technical solutions of the embodiments, and they should all be covered by the scope of protection of the claims.

Claims

1. A cutting head based on sealed dust removal, characterized in that: include: The cover body (1) has a closed space formed inside, and a relief hole (131) is provided at the bottom of the closed space, and a positive pressure air inlet joint (16) is connected to the top of the closed space; The cover body (1) comprises: a back plate (11) arranged vertically; An upper transverse plate (12) fixed to the upper end of the back plate (11); a lower transverse plate (13) fixed to the lower end of the back plate (11), the lower transverse plate (13) being provided with the avoidance hole (131); and at least two side plates (14) each surrounding the upper transverse plate (12) and the lower transverse plate (13). A power element (2) is installed on the top outside of the cover (1) or in the closed space; A transmission assembly (3) installed in the enclosed space and linked with the power element (2) to output lifting motion; A slider (4) is installed in the closed space and can slide vertically relative to the cover body (1), and the slider (4) is connected to the transmission assembly (3) to achieve lifting; A connecting sleeve (5), the gap of which passes through the avoidance hole (131), and the upper end of the connecting sleeve (5) is fixedly connected to the slider (4); A cutter head (6) is inserted into the lower end of the connecting sleeve (5); the cutter head (6) includes a cutter wheel (63) located at the bottom end and used for cutting the panel; The mounting seat (7) is a barrel-shaped structure with the barrel mouth facing upwards, a through hole is opened in the middle of the barrel bottom of the barrel-shaped structure, the bottom end of the connecting sleeve (5) is fixedly connected to the barrel bottom of the barrel-shaped structure, and the inner diameter of the barrel-shaped structure is larger than the outer diameter of the connecting sleeve (5) to form a gap between the connecting sleeve (5) and the barrel-shaped structure, and the cutter head (6) passes through the through hole; The dust hood (8) is a cylindrical structure with its top end fixed to the bottom of the hood body (1), the dust hood (8) extends into the gap, and the mounting seat (7) and the dust hood (8) cooperate so that the exhaust port of the enclosed space extends from the gap between the connecting sleeve (5) and the avoidance hole (131) to the gap between the connecting sleeve (5) and the dust hood (8), and then extends to the gap between the dust hood (8) and the barrel wall of the barrel-shaped structure; An air blowing head (91) and an air suction head (92), wherein the air blowing head (91) and the air suction head (92) are both fixed below the cover body (1) and are respectively located on both sides of the cutter head (6), and the air blowing head (91) faces the cutter wheel (63) and is used to blow dust generated by cutting toward the position of the air suction head (92).

2. The cutting head based on sealed dust removal according to claim 1, characterized in that: Sealing strips (15) are provided at the joints between the side panels (14) and the upper transverse panel (12), the joints between the side panels (14) and the lower transverse panel (13), and the joints between the side panels (14) and the back panel (11).

3. The cutting head based on sealed dust removal according to claim 1, characterized in that: The power element (2) is a servo motor, the servo motor is located outside the top of the cover (1), and the output shaft of the servo motor extends into the closed space.

4. The cutting head based on sealed dust removal according to claim 3, characterized in that: The transmission assembly (3) comprises: A cylindrical cam (31) connected to the bottom end of the output shaft of the servo motor, wherein the lower end surface of the cylindrical cam (31) forms a curved profile; A roller (32) is mounted on the slider (4) and arranged with its axis horizontally, the roller (32) being in contact with the curved profile of the cylindrical cam (31); The two ends of the return spring (33) are respectively connected to the cover (1) and the slider (4) and are used to make the slider (4) have an upward trend.

5. The cutting head based on sealed dust removal according to claim 4, characterized in that: A limiting bolt (41) is screwed onto the slider (4), and the limiting bolt (41) extends outward from below the slider (4) to cooperate with the bottom of the cover body (1) to complete the limiting.

6. The cutting head based on sealed dust removal according to claim 1, characterized in that: The cutter head (6) further comprises a cutter holder (61) and a bearing (62), wherein the bearing (62) is sleeved on the top end of the cutter holder (61) and integrally inserted into the lower end of the connecting sleeve (5), and the cutter wheel (63) is mounted on the bottom end of the cutter holder (61). An elastic plunger (71) is provided on the mounting seat (7), and a positioning hole is provided on the cutter holder (61) corresponding to the elastic plunger (71).

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