Large wind power blade edge trimming device and using method thereof

Abstract

The invention belongs to the technical field of wind power blades, and discloses a large wind power blade edge trimming device and a using method thereof.The device comprises two moving modules, and the two moving modules are arranged on the two opposite sides of a blade girder in the radial direction of the blade girder correspondingly; each moving module comprises a first guide rail extending in the axial direction of the corresponding blade girder. Each first guide rail is movably connected with the corresponding bearing part, and the bearing parts can move in the length direction of the first guide rails; each bearing part is provided with one cutting assembly, each cutting assembly comprises a connecting rod mechanism and a cutting tool, the connecting rod mechanisms are connected between the bearing parts and the cutting tools, and the connecting rod mechanisms can drive the cutting tools to move. The cutting tool is used for cutting the edges of the two sides of the blade girder in the radial direction of the blade girder. The blade edge trimming device can realize efficient and automatic blade edge trimming.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wind power blades, and in particular to a large wind power blade edge repairing device and a method thereof. BACKGROUND

[0002] In the manufacturing process of large wind power blades, blade edge repairing is a key link to ensure the assembly accuracy of the blades and the subsequent performance. After the blade beam is formed by the pasting mold and taken out, the two edges along the axial direction with a length of tens of meters need to be trimmed to remove the excess edge material. After the blade beam is trimmed, the complete blade is assembled.

[0003] The existing blade edge repairing process mainly relies on manual operation, and the operator walks along the edge of the blade beam with an angle grinder. However, since the cutting trajectory on the blade beam is a spatial three-dimensional curve, and part of the cutting surface needs to be at a specific inclination angle, manual operation is prone to unstable edge repairing quality; and the manual labor intensity is large, and it is difficult to complete the edge repairing at one time along the axial direction of the blade beam, resulting in low edge repairing efficiency.

[0004] Therefore, it is urgent to provide a large wind power blade edge repairing device and a method thereof to solve the above technical problems. SUMMARY

[0005] The purpose of the present application is to provide a large wind power blade edge repairing device and a method thereof, which can realize efficient and automated blade edge repairing.

[0006] As conceived above, the technical solution adopted by the present application is:

[0007] In a first aspect, the present application provides a large wind power blade edge repairing device, comprising:

[0008] A moving module is provided with two groups, and the two groups of moving modules are respectively arranged on the opposite sides of the blade beam along the radial direction thereof. Each moving module comprises a first guide rail extending in the axial direction of the blade beam.

[0009] A carrying member is movably connected to each first guide rail, and the carrying member can move along the length direction of the first guide rail.

[0010] A cutting assembly is arranged on each carrying member, and the cutting assembly comprises a connecting rod mechanism and a cutting tool. The connecting rod mechanism is connected between the carrying member and the cutting tool, and the connecting rod mechanism can drive the cutting tool to move. The cutting tool is used to cut the two side edges of the blade beam along the radial direction thereof.

[0011] In some embodiments, the linkage mechanism comprises a connecting piece, a first linkage and a second linkage, the connecting piece is arranged on the carrier, one end of the first linkage is rotatably connected to the connecting piece, the second linkage is rotatably connected to the other end of the first linkage, and the cutting tool is arranged on the end of the second linkage away from the first linkage.

[0012] In some embodiments, an elastic pressing piece is arranged between the second linkage and the cutting tool, and the cutting tool can always fit the beam of the blade under the elastic force of the elastic pressing piece when the cutting tool abuts against the beam of the blade.

[0013] In some embodiments, a second guide rail extending in the vertical direction is arranged on each carrier, and the connecting piece is movably connected to the second guide rail and can move along the length direction of the second guide rail.

[0014] In some embodiments, the cutting tool comprises a flexible guide part and a blade, and the blade is arranged on the side of the flexible guide part facing the beam of the blade.

[0015] In some embodiments, a cross beam is connected between the top portions of the two carriers, and the cross beam and the two carriers can jointly move along the length direction of the first guide rail.

[0016] In some embodiments, the large wind power blade trimming device further comprises a dust cover, the dust cover covers the two carriers, and the cross beam, the two carriers and the two cutting assemblies are all located inside the dust cover.

[0017] In some embodiments, the moving module further comprises a driving assembly, one of the driving assemblies is arranged at each opposite end of the first guide rail along the length direction thereof, one of the two driving assemblies at each end of the first guide rail is configured to drive the corresponding carrier to move in a first direction, and the other is configured to drive the corresponding carrier to move in a second direction, the first direction and the second direction being two opposite directions along the length direction of the first guide rail.

[0018] In some embodiments, the driving assembly comprises a first driving motor, a brake, a speed reducer, a winding drum and a traction rope, the input end of the brake is connected to the output end of the first driving motor, the input end of the speed reducer is connected to the output end of the brake, the winding drum is connected to the output end of the speed reducer, the axial direction of the winding drum is perpendicular to the length direction of the first guide rail, the traction rope can be wound around the outer periphery of the winding drum, and one end of the traction rope is connected to the carrier.

[0019] In a second aspect, the present application provides a method for using the large wind power blade edge repairing device, which adopts the large wind power blade edge repairing device described in the first aspect; the method for using the large wind power blade edge repairing device comprises the following steps:

[0020] Positioning the bearing member at an edge repairing starting position;

[0021] Starting the connecting rod mechanism to make the cutting tool abut against the blade girder;

[0022] Moving the bearing member along the length direction of the first guide rail, and adjusting the cutting tool in real time through the connecting rod mechanism during the movement of the bearing member, so that the cutting tool can always abut against and cut the blade girder until the bearing member moves from the edge repairing starting position to an edge repairing ending position.

[0023] The present application has the following advantages:

[0024] The large wind power blade edge repairing device provided by the present application realizes the automatic mode of blade edge repairing, and manual cutting is not needed; the cooperation of the moving module and the bearing member can drive the cutting assembly to move automatically, and the position of the cutting tool can be automatically adjusted through the connecting rod mechanism, so that the cutting tool can always be effectively cut. In this way, not only the labor intensity can be greatly reduced, but also the continuous movement of the bearing member can complete the edge repairing operation along the axial direction of the blade girder at one time, which is beneficial to shorten the blade production cycle, and compared with manual edge repairing, the automatic blade edge repairing mode can avoid the deviation of the cutting path, thereby improving the edge repairing precision.

[0025] The method for using the large wind power blade edge repairing device provided by the present application can complete the edge repairing operation through only three steps of positioning the starting position, adjusting the tool and moving the cutting, which is beneficial to realize the efficient and automatic blade edge repairing. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the contents of the embodiments of the present application and the drawings.

[0027] Figure 1 is a structural schematic view of the large wind power blade edge repairing device and the blade girder provided by the embodiments of the present application;

[0028] Figure 2 is a partial enlarged view in Figure 1 ;

[0029] Figure 3 is a structural schematic view of the driving assembly provided by the embodiment of the present application;

[0030] Figure 4 is a structural schematic view of the cutting assembly provided by the embodiment of the present application;

[0031] Figure 5 is a partial enlarged view of Figure 4

[0032] Figure 6 is a structural schematic view of the large wind power blade edge repairing device (including the dust cover) and the blade girder provided by the embodiment of the present application.

[0033] in the figure:

[0034] 1, moving module; 11, first guide rail; 12, driving assembly; 121, first driving motor; 122, brake; 123, speed reducer; 124, winding drum;

[0035] 2, bearing; 21, second guide rail;

[0036] 3, cutting assembly; 31, connecting rod mechanism; 311, connecting piece; 312, first connecting rod; 313, second connecting rod; 314, second driving motor; 32, cutting tool; 321, flexible guide part;

[0037] 4, elastic pressing piece;

[0038] 5, cross beam;

[0039] 6, dust cover;

[0040] 7, third driving motor;

[0041] 100, blade girder. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0043] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application. ​

[0044] It should be noted that like reference numerals and characters refer to like elements throughout the following description with like reference numerals and characters referring to like elements throughout the following description and across different drawings. Important numerical ranges can be expressed in a hyphenated format, e.g., "from 1 to 10" or "from 1-10". Such a numerical range can be understood to include each integer within the given range. In addition, such a numerical range can be understood to include each end point within the given range. In addition, such a numerical range can be understood to include each integer within the given range and each end point within the given range.

[0045] In the description of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like only indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings or the orientation or position relationship in which the product of the present application is usually placed, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0046] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "set", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] In the present application, unless otherwise specified and limited, "on" or "under" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "above" of the first feature to the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. "Below", "below" and "below" of the first feature to the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0048] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation on the present application.

[0049] As shown in Figures 1-6 The present embodiment provides a large wind power blade edge repairing device, which comprises a moving module 1, a bearing member 2 and a cutting assembly 3.

[0050] The mobile module 1 is provided with two groups, and the two groups of mobile modules 1 are respectively arranged on opposite sides of the blade beam 100 along the radial direction of the blade beam 100. Each mobile module 1 comprises a first guide rail 11 extending in the axial direction of the blade beam 100. Figure 1 The X direction in the formula represents the axial direction of the blade beam 100, and the Y direction represents the radial direction of the blade beam 100.

[0051] Each first guide rail 11 is movably connected with a bearing 2, and the bearing 2 can move along the length direction of the first guide rail 11, that is, the bearing 2 can move along the axial direction of the blade beam 100. Each bearing 2 is provided with a cutting assembly 3, and the cutting assembly 3 comprises a connecting rod mechanism 31 and a cutting tool 32. The connecting rod mechanism 31 is connected between the bearing 2 and the cutting tool 32, and the connecting rod mechanism 31 can drive the cutting tool 32 to move. The cutting tool 32 is used to cut the two side edges of the blade beam 100 along the radial direction of the blade beam 100.

[0052] In specific implementation, the cutting assembly 3 can move along the first guide rail 11 together with the corresponding bearing 2. At the same time, the position of the cutting tool 32 can be adjusted in real time through the action of the connecting rod mechanism 31, so that the cutting tool 32 can always cut the edge of the blade beam 100 during the movement of the bearing 2. In this way, the edge finishing work of the blade beam 100 can be automatically completed with the movement of the bearing 2.

[0053] The large wind power blade edge finishing device provided in the embodiment realizes the automatic edge finishing of the blade, and does not need manual cutting. The cooperation of the mobile module 1 and the bearing 2 can drive the cutting assembly 3 to move automatically, and the position of the cutting tool 32 can be adjusted automatically through the connecting rod mechanism 31, so that the cutting tool 32 can always cut effectively. In this way, it is not only beneficial to greatly reduce the labor intensity, but also beneficial to shorten the production cycle of the blade. At the same time, compared with manual edge finishing, the automatic edge finishing of the blade can avoid the deviation of the cutting path, and thus it is beneficial to improve the edge finishing precision.

[0054] Correspondingly, the embodiment also provides a use method of a large wind power blade edge finishing device. The use method of the large wind power blade edge finishing device comprises the following steps:

[0055] S1, the bearing 2 is located at the edge finishing starting position;

[0056] S2, the connecting rod mechanism 31 is started, and the cutting tool 32 abuts against the blade beam 100;

[0057] S3, moving the carrier 2 along the length direction of the first guide rail 11, and adjusting the cutting tool 32 in real time through the connecting rod mechanism 31 during the movement of the carrier 2, so that the cutting tool 32 can always abut and cut the blade beam 100 until the carrier 2 moves from the edge finishing starting position to the edge finishing ending position.

[0058] The use method of the large wind power blade edge finishing device provided by the embodiment can realize efficient and automatic blade edge finishing.

[0059] It should be noted that in the embodiment, the edge finishing process performed by the movement of the carrier 2 and the action of the connecting rod mechanism 31 is controlled by a control system, which can be set in the prior art and will not be described in detail here.

[0060] As shown in Figure 1 In some embodiments, the moving module 1 further includes a driving assembly 12, and each first guide rail 11 is provided with one driving assembly 12 at each of the opposite ends in the length direction thereof, one of the two driving assemblies 12 at the two ends of each first guide rail 11 is configured to drive the corresponding carrier 2 to move in the first direction, and the other is configured to drive the corresponding carrier 2 to move in the second direction, the first direction and the second direction being two opposite directions in the length direction of the first guide rail 11. Figure 1 For example, as shown in the orientation in

[0061] Through such a setting, flexible reciprocating movement of the carrier 2 in the axial direction of the blade beam 100 can be realized, and independent control of the two driving assemblies 12 can more accurately regulate the moving direction and movement state of the carrier 2, avoiding the operation limitation caused by a single driving direction.

[0062] As shown in Figure 3 In some embodiments, the driving assembly 12 includes a first driving motor 121, a brake 122, a speed reducer 123, a winding drum 124 and a traction rope (not shown in the figure), the input end of the brake 122 is connected to the output end of the first driving motor 121, the input end of the speed reducer 123 is connected to the output end of the brake 122, the winding drum 124 is connected to the output end of the speed reducer 123 and the axial direction of the winding drum 124 is perpendicular to the length direction of the first guide rail 11, the traction rope can be wound around the outer periphery of the winding drum 124, and one end of the traction rope is connected to the carrier 2.

[0063] Through such a setting, the first driving motor 121 provides power output, the brake 122 can brake quickly when needed to avoid the carrier 2 from moving excessively due to inertia, and the speed reducer 123 can convert the high-speed rotation of the first driving motor 121 into low-speed rotation of the winding drum 124, which, in combination with the transmission of the winding drum 124 and the traction rope, makes the moving speed of the carrier 2 more gentle and meets the demand for uniform speed in edge trimming work.

[0064] As shown in Figure 4 some embodiments, the connecting rod mechanism 31 includes a connecting piece 311, a first connecting rod 312, and a second connecting rod 313. The connecting piece 311 is arranged on the carrier 2, one end of the first connecting rod 312 is rotatably connected to the connecting piece 311, the second connecting rod 313 is rotatably connected to the other end of the first connecting rod 312, and the cutting tool 32 is arranged at the end of the second connecting rod 313 away from the first connecting rod 312. The rotation of the first connecting rod 312 can drive the second connecting rod 313 and the cutting tool 32 to move along an arc-shaped path, and the second connecting rod 313 itself can also rotate relative to the first connecting rod 312 to further adjust the position of the cutting tool 32.

[0065] Through such a setting, the connecting rod mechanism 31 forms a multi-degree-of-freedom movable structure, which can accurately transmit position adjustment actions through the coordinated rotation of the two connecting rods, so that the cutting tool 32 can be flexibly adapted to the three-dimensional curve and specific inclined surface of the edge of the vane girder 100.

[0066] Optionally, as shown in Figure 4 , the connecting rod mechanism 31 further includes a second driving motor 314. The first connecting rod 312 and the second connecting rod 313 realize coordinated motion under the control of the second driving motor 314, thereby moving the cutting tool 32 to a specified position of the vane girder 100.

[0067] Of course, in other embodiments, the number of connecting rods in the connecting rod mechanism 31 can also be three, four, etc., which can be determined according to actual conditions.

[0068] As shown in Figure 4 and Figure 5 , in some embodiments, an elastic pressing piece 4 is arranged between the second connecting rod 313 and the cutting tool 32. When the cutting tool 32 abuts against the vane girder 100, the cutting tool 32 can always adhere to the vane girder 100 under the elastic force of the elastic pressing piece 4. Through such a setting, the elastic pressing piece 4 itself can provide the cutting tool 32 with continuous and flexible pressing force, thereby ensuring that the cutting tool 32 can always adhere to the surface of the vane girder 100 and avoiding incomplete edge trimming due to gaps.

[0069] Optionally, the elastic pressing piece 4 includes but is not limited to a coil spring.

[0070] As shown in Figure 4 and Figure 5 shown, in some embodiments, the cutting tool 32 comprises a flexible guide portion 321 and a blade, the blade being arranged on one side of the flexible guide portion 321 facing the beam 100. The flexible guide portion 321 can be elastically deformed, so that the blade on the flexible guide portion 321 can better adapt to the shape of the surface to be cut of the beam 100, thereby facilitating the fitting of the cutting tool 32 to irregular cutting trajectories.

[0071] As shown in Figure 4 and Figure 5 shown, the flexible guide portion 321 can be provided in a circular arc shape, a V shape, etc., which can be determined according to actual conditions.

[0072] As shown in Figure 2 and Figure 4 shown, in some embodiments, each carrier 2 is provided with a second guide rail 21 extending in the vertical direction, and the connecting member 311 is movably connected to the second guide rail 21 and can move along the length direction of the second guide rail 21.

[0073] By providing the second guide rail 21, the connecting rod mechanism 31 can be driven to move up and down in the vertical direction, thereby achieving flexible adjustment of the up and down positions of the cutting tool 32.

[0074] Optionally, each carrier 2 is provided with a third driving motor 7, and the second guide rail 21 is provided with a rolling member (such as a roller, a ball, etc.), and the third driving motor 7 can drive the rolling member to rotate, thereby driving the connecting member 311 to move.

[0075] As shown in Figure 2 shown, in some embodiments, the top portions of the two carriers 2 are connected by a cross beam 5, and the cross beam 5 and the two carriers 2 can jointly move along the length direction of the first guide rail 11.

[0076] The cross beam 5 connects the two carriers 2 into a whole, so that the two cutting assemblies 3 can move synchronously with the two carriers 2; and the cross beam 5 can also improve the structural rigidity of the two carriers 2 and reduce the deformation of the carriers 2.

[0077] A large amount of glass fiber reinforced plastic dust is usually generated during the trimming process, which pollutes the surrounding environment, and the glass fiber reinforced plastic dust cannot be metabolized by the human body after entering the human body, causing continuous harm to the workers. Therefore, as shown in Figure 6As shown, in some embodiments, the large wind turbine blade edge repairing device further comprises a dust cover 6, which covers the two carriers 2 and makes the cross beam 5, the two carriers 2 and the two cutting assemblies 3 all inside the dust cover 6. The dust cover 6 can move together with the carrier 2. The arrangement of the dust cover 6 can effectively seal the glass fiber dust generated by the cutting operation inside, avoid the dust from spreading to the surrounding environment, reduce the pollution to the surrounding environment, and avoid the dust from being inhaled by workers.

[0078] It should be noted that the above only describes the preferred embodiments of the present application and the technical principles applied. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and those skilled in the art can make various obvious changes, re-adjustments and substitutions without departing from the scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments, and can include more other equivalent embodiments without departing from the concept of the present application, and the scope of the present application is determined by the scope of the appended claims.

Claims

1. A large wind turbine blade edge trimming device, characterized in that, include: The moving module (1) is provided in two sets, and the two sets of moving modules (1) are respectively provided on opposite sides of the blade beam (100) along its own radial direction. Each moving module (1) includes a first guide rail (11) extending along the axial direction of the blade beam (100). The carrier (2) is movably connected to each of the first guide rails (11), and the carrier (2) is capable of moving along the length direction of the first guide rail (11); A cutting assembly (3) is provided on each of the carrier members (2). The cutting assembly (3) includes a linkage mechanism (31) and a cutting tool (32). The linkage mechanism (31) is connected between the carrier member (2) and the cutting tool (32). The linkage mechanism (31) can drive the cutting tool (32) to move. The cutting tool (32) is used to cut the two sides of the blade beam (100) along its own radial direction.

2. The large wind turbine blade trimming device according to claim 1, characterized in that, The linkage mechanism (31) includes a connector (311), a first link (312), and a second link (313). The connector (311) is disposed on the bearing member (2). One end of the first link (312) is rotatably connected to the connector (311), and the second link (313) is rotatably connected to the other end of the first link (312). The cutting tool (32) is disposed at the end of the second link (313) away from the first link (312).

3. The large wind turbine blade trimming device according to claim 2, characterized in that, An elastic clamping member (4) is provided between the second connecting rod (313) and the cutting tool (32). When the cutting tool (32) abuts against the blade beam (100), the cutting tool (32) can always fit against the blade beam (100) under the elastic force of the elastic clamping member (4).

4. The large wind turbine blade trimming device according to claim 2, characterized in that, Each of the carrier members (2) is provided with a second guide rail (21) extending in the vertical direction. The connector (311) is movably connected to the second guide rail (21) and can move along the length direction of the second guide rail (21).

5. The large wind turbine blade trimming device according to claim 2, characterized in that, The cutting tool (32) includes a flexible guide (321) and a cutting edge, the cutting edge being arranged on the side of the flexible guide (321) facing the blade spars (100).

6. The large wind turbine blade trimming device according to any one of claims 1 to 5, characterized in that, A crossbeam (5) is connected between the tops of the two support members (2), and the crossbeam (5) and the two support members (2) can move together along the length direction of the first guide rail (11).

7. The large wind turbine blade trimming device according to claim 6, characterized in that, The large wind turbine blade trimming device also includes a dust cover (6), which covers and connects to the two bearing members (2), and the crossbeam (5), the two bearing members (2) and the two cutting components (3) are all located inside the dust cover (6).

8. The large wind turbine blade trimming device according to any one of claims 1 to 5, characterized in that, The mobile module (1) further includes a drive component (12). Each of the first guide rails (11) has a drive component (12) at each of its opposite ends along its length direction. One of the two drive components (12) at each end of the first guide rail (11) is configured to drive the corresponding carrier (2) to move along a first direction, and the other is configured to drive the corresponding carrier (2) to move along a second direction. The first direction and the second direction are two opposite directions along the length direction of the first guide rail (11).

9. The large wind turbine blade trimming device according to claim 8, characterized in that, The drive assembly (12) includes a first drive motor (121), a brake (122), a reducer (123), a drum (124), and a traction rope. The input end of the brake (122) is connected to the output end of the first drive motor (121), the input end of the reducer (123) is connected to the output end of the brake (122), the drum (124) is connected to the output end of the reducer (123), and the axial direction of the drum (124) is perpendicular to the length direction of the first guide rail (11). The traction rope can be wound around the outer circumference of the drum (124), and one end of the traction rope is connected to the carrier (2).

10. The method of using a large wind turbine blade edge trimming device, characterized in that, The large wind turbine blade trimming device according to any one of claims 1 to 9 is used; the method of using the large wind turbine blade trimming device includes the following steps: Position the carrier (2) at the edge-repairing starting position; The linkage mechanism (31) is activated, causing the cutting tool (32) to abut against the blade beam (100). The carrier (2) is moved along the length of the first guide rail (11). During the movement of the carrier (2), the cutting tool (32) is adjusted in real time by the linkage mechanism (31) so that the cutting tool (32) can always abut against and cut the blade beam (100) until the carrier (2) moves from the edge trimming start position to the edge trimming end position.

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