Laser rubber cutting device

Abstract

The application discloses a laser adhesive cutting device, comprising a rack, a plate conveying mechanism mounted on the rack, a first conveying synchronous belt and a second conveying synchronous belt with adjustable spacing, a first plate positioning mechanism, a second plate positioning mechanism for aligning the short side center line or the long side center line of the plate with a second preset center line, a plate surface leveling mechanism for pressing the opposite two edges of the plate in the conveying direction of the plate after the second plate positioning mechanism completes the positioning operation, so as to maintain the flatness of the plate, an adhesive cutting mechanism for cutting the adhesive on the two side edges perpendicular to the conveying direction of the plate after the plate surface leveling mechanism completes the leveling operation, and a plate rotating mechanism for rotating the plate after the adhesive cutting mechanism completes the adhesive cutting operation, so as to perform the adhesive cutting operation on the remaining two side edges of the plate. The application realizes the compatible adhesive cutting of plates of different sizes, effectively overcomes the movement resistance caused by adhesive sticking, and ensures the smooth rotation of the plate and the stability of the conveying.

Description

Technical Field

[0001] This application relates to the field of PCB manufacturing technology, and more specifically, to a laser adhesive cutting device. Background Technology

[0002] In PCB (Printed Circuit Board) drilling, a multi-layer processing method is typically used to ensure processing accuracy and board surface quality. The multi-layer structure, from top to bottom, consists of an aluminum sheet, a copper plate, and a backing plate. To prevent misalignment or loosening of the multi-layered board during handling and loading, adhesive tape is usually used to seal and secure the edges, forming a stable whole for smooth entry into the drilling machine. Before the board completes the drilling process and is transferred to subsequent processes, the adhesive tape must be completely removed from the edges; otherwise, residual tape will affect subsequent circuit fabrication.

[0003] However, existing laser glue cutting devices have significant limitations in practical applications, restricting processing efficiency and yield. First, the devices suffer from poor size compatibility: existing feeding mechanisms typically use synchronous conveyor belts with fixed spacing, making it impossible to effectively transport small-sized sheets with widths smaller than this spacing, thus limiting the equipment's versatility. Second, glue residue easily obstructs conveying and rotation. In existing technologies, the clamping of the sheet edges usually relies on the lifting movement of the upper pressure plate in conjunction with a fixed lower pressure plate. However, after long-term operation, glue residue generated during cutting easily adheres to the surface of the fixed lower pressure plate, causing the sheet to stick to the lower pressure plate during conveying and rotation, significantly increasing frictional resistance, and consequently leading to rotational deviation or conveying jams. Furthermore, existing sheet rotation stability is insufficient. Relying solely on a single rotation mechanism easily leads to centrifugal displacement of the sheet during rotation, resulting in incomplete rotation.

[0004] Therefore, developing a laser glue cutting device that can be compatible with different sized sheets, effectively overcome adhesive resistance, and achieve precise rotation and stable conveying of the sheets has become an urgent technical problem to be solved in this field. Summary of the Invention

[0005] The main objective of this application is to provide a laser glue-cutting device to solve the technical problems existing in the prior art, such as poor dimensional compatibility, glue residue causing obstruction of conveying and rotation, and insufficient stability of sheet rotation. The technical solution of this application achieves compatible glue cutting of sheets of multiple sizes, effectively overcomes the motion resistance caused by glue adhesion, and ensures smooth sheet rotation and stable conveying.

[0006] To achieve the above objectives, this application provides the following technical solution: This application provides a laser cutting device, comprising: a frame; a sheet material conveying mechanism including a first and a second synchronous conveying belt arranged parallel and spaced apart, and a first spacing adjustment component; the first and second synchronous conveying belts are respectively disposed on a first synchronous belt mounting base and a second synchronous belt mounting base mounted on the frame; the first spacing adjustment component is connected to the first and second synchronous belt mounting bases and configured to drive the first and second synchronous belt mounting bases to move synchronously towards or away from each other to adjust the spacing between the first and second synchronous conveying belts; and a first sheet material positioning mechanism disposed on the frame and located at the first synchronous conveying belt. The first sheet metal positioning mechanism includes a positioning baffle, a baffle translation drive assembly, and a baffle lifting drive assembly; the baffle lifting drive assembly is connected to the positioning baffle and is used to drive the positioning baffle to lift; the baffle translation drive assembly is connected to the baffle lifting drive assembly and is used to drive the baffle lifting drive assembly and the positioning baffle to move horizontally; the second sheet metal positioning mechanism includes a first positioning plate, a second positioning plate, and a second spacing adjustment assembly; the first positioning plate and the second positioning plate are respectively disposed on a first rotary avoidance mounting base and a second rotary avoidance mounting base, and the first rotary avoidance mounting base and the second rotary avoidance mounting base are respectively installed on the... The first synchronous belt mounting base and the second synchronous belt mounting base are mounted on the first synchronous belt mounting base and the second synchronous belt mounting base; the second spacing adjustment component is connected to the first rotary avoidance mounting base and the second rotary avoidance mounting base and is configured to drive the first rotary avoidance mounting base and the second rotary avoidance mounting base to move synchronously towards or away from each other; the plate leveling mechanism includes a first pressure beam assembly and a second pressure beam assembly, the first pressure beam assembly and the second pressure beam assembly being respectively disposed on the first rotary avoidance mounting base and the second rotary avoidance mounting base; both the first pressure beam assembly and the second pressure beam assembly include an upper pressure beam and a lower pressure beam arranged opposite to each other, an upper pressure beam lifting drive assembly for driving the upper pressure beam to rise and fall, and a lower pressure beam lifting drive assembly for driving the lower pressure beam to rise and fall. The system includes a cutting mechanism comprising a first laser, a second laser, and a third spacing adjustment assembly; the first laser and the second laser are respectively mounted on a first rotating avoidance mounting base and a second rotating avoidance mounting base; the third spacing adjustment assembly is connected to the first laser and the second laser and is configured to drive the first laser and the second laser to move synchronously towards or away from each other along the conveying direction of the sheet metal; a sheet metal rotating mechanism is mounted on the frame and located between the first conveying synchronous belt and the second conveying synchronous belt; the sheet metal rotating mechanism includes a pressure plate assembly and a rotating tray assembly arranged vertically opposite each other; the pressure plate assembly includes a pressure plate and a pressure plate lifting assembly for driving the pressure plate to rise and fall;The rotating pallet assembly includes a rotating pallet, a pallet rotation drive assembly, and a pallet lifting drive assembly. The pallet rotation drive assembly is connected to the rotating pallet and is used to drive the rotating pallet to rotate. The pallet lifting drive assembly is connected to the pallet rotation drive assembly and is used to drive the pallet rotation drive assembly and the rotating pallet to lift synchronously. The first sheet metal positioning mechanism and the sheet metal rotation mechanism are arranged sequentially along the conveying direction, with the first sheet metal positioning mechanism located on the discharge side of the conveying direction and the sheet metal rotation mechanism located on the feed side of the conveying direction. The first pressure beam assembly, the first positioning plate, and the first laser are all disposed on the outer side of the first conveying synchronous belt and arranged sequentially from the inside to the outside. The second pressure beam assembly, the second positioning plate, and the second laser are all disposed on the outer side of the second conveying synchronous belt and arranged sequentially from the inside to the outside.

[0007] Preferably, the laser cutting device further includes a control mechanism; the control mechanism is used to acquire the long side dimension and short side dimension of the sheet material, and execute the following control logic: generating a first spacing control signal based on the short side dimension and sending it to the first spacing adjustment component; generating a baffle translation signal based on the long side dimension and sending it to the baffle translation drive component; generating a second spacing control signal and a third spacing control signal based on the short side dimension or the long side dimension, and sending them to the second spacing adjustment component and the third spacing adjustment component respectively; and generating a rotation avoidance signal based on the long side dimension and sending it to the second spacing adjustment component; the first spacing adjustment component is configured to drive the first synchronous belt mounting base and the second synchronous belt mounting base in response to the first spacing control signal, causing the first conveyor synchronous belt and the second conveyor synchronous belt to move synchronously towards or away from each other, so that the spacing between the first conveyor synchronous belt and the second conveyor synchronous belt is adjusted to be less than the short side dimension; the baffle translation drive component is configured to drive the positioning baffle to move horizontally to the target calculation position in response to the baffle translation signal. The first and second lasers are configured to move synchronously towards or away from each other along the conveying direction of the sheet metal in response to the second spacing control signal, so that the long side centerline of the sheet metal coincides with the first preset centerline. The second spacing adjustment component is configured to drive the first and second rotating avoidance mounting seats and the second rotating avoidance mounting seats synchronously towards or away from each other in response to the second spacing control signal, thereby adjusting the spacing between the first and second positioning plates to be equal to the short side dimension or the long side dimension, and thus making the short side centerline or the long side centerline of the sheet metal coincide with the second preset centerline. The third spacing adjustment component is configured to drive the first and second lasers to move synchronously towards or away from each other along the conveying direction of the sheet metal in response to the third spacing control signal, so that the light emission spacing of the first and second lasers adapts to the short side dimension or the long side dimension. The second spacing adjustment component is configured to drive the first and second rotating avoidance mounting seats to move synchronously away from each other in response to the rotating avoidance signal, so as to form an avoidance area for the sheet metal to rotate between the first and second rotating avoidance mounting seats.

[0008] Preferably, the first pitch adjustment assembly includes a drive motor, a left-hand lead screw, and a right-hand lead screw mounted on the frame; the left-hand lead screw and the right-hand lead screw are connected by a coupling; the first synchronous belt mounting base and the second synchronous belt mounting base are respectively connected to the left-hand lead screw and the right-hand lead screw via a first threaded female base and a second threaded female base; the drive motor is configured to drive the left-hand lead screw and the right-hand lead screw to rotate synchronously, so as to drive the first synchronous belt mounting base and the second synchronous belt mounting base to move synchronously towards or away from each other.

[0009] Preferably, the sheet metal conveying mechanism further includes a splined shaft, on which a first splined hole bushing and a second splined hole bushing are fitted, and both the first splined hole bushing and the second splined hole bushing are splinedly engaged with the splined shaft; the first conveying synchronous belt and the first synchronous belt mounting seat are both mounted on the first splined hole bushing, and the second conveying synchronous belt and the second synchronous belt mounting seat are both mounted on the second splined hole bushing; bushing locking blocks are provided on both sides of the second splined hole bushing on the splined shaft to axially limit the second splined hole bushing, and the first splined hole bushing slides with the splined shaft.

[0010] Preferably, the baffle lifting drive assembly is a cylinder drive assembly, which is connected to the positioning baffle to drive the positioning baffle to move between a position higher than the plate and a position lower than the plate; the baffle translation drive assembly is a lead screw drive assembly, which is mounted on the frame, and the cylinder drive assembly is mounted on the lead screw nut of the lead screw drive assembly.

[0011] Preferably, the second plate positioning mechanism further includes a first positioning plate lifting drive assembly and a second positioning plate lifting drive assembly; the first positioning plate lifting drive assembly is connected to the first positioning plate to drive the first positioning plate to move between a position higher than the plate and a position lower than the plate; the second positioning plate lifting drive assembly is connected to the second positioning plate to drive the second positioning plate to move between a position higher than the plate and a position lower than the plate.

[0012] Preferably, the output force of the lower pressure beam lifting drive assembly is greater than the output force of the upper pressure beam lifting drive assembly, so as to drive the lower pressure beam to move upward against the load and press the edge of the sheet together with the upper pressure beam.

[0013] Preferably, the first laser is located on the feeding side in the conveying direction, and the second laser is located on the discharging side in the conveying direction, so as to cut the tape on the two opposite edges of the sheet material respectively; the light emission directions of the first laser and the second laser are perpendicular to the conveying direction of the sheet material.

[0014] Preferably, the pressure plate lifting assembly is a cylinder drive assembly connected to the pressure plate to drive the pressure plate downwards towards the sheet metal as the sheet metal rotates, forming a rotational gap between the pressure plate and the rotating pallet; the pallet rotation drive assembly is a rotary cylinder assembly connected to the rotating pallet to drive the rotating pallet to rotate; the pallet lifting drive assembly is a cylinder drive assembly connected to the pallet rotation drive assembly to drive the pallet rotation drive assembly and the rotating pallet to lift synchronously, so that the rotating pallet is higher or lower than the first conveyor synchronous belt and the second conveyor synchronous belt.

[0015] Preferably, the laser cutting device further includes a first auxiliary support mechanism and a second auxiliary support mechanism; along the conveying direction of the sheet material, the first auxiliary support mechanism and the second auxiliary support mechanism are respectively disposed on the discharge side and the feed side of the sheet material rotating mechanism; the first auxiliary support mechanism and the second auxiliary support mechanism are configured to rise when the sheet material rotates to support the sheet material located on both sides of the rotating tray.

[0016] The technical solution provided in this application may include the following beneficial effects: 1) This application achieves flexible adjustment of the distance between the first and second synchronous conveyor belts by driving them to move synchronously towards or away from each other, thereby adapting to the conveying and tape cutting operations of different sized plates. 2) The board leveling mechanism of this application includes an upper pressure beam and a lower pressure beam that can be raised and lowered independently; during the rotation and conveying of the board, the upper pressure beam rises and the lower pressure beam falls to form a clearance space, thereby effectively avoiding mechanical interference caused by glue residue, ensuring the smooth conveying and rotation of the board, and thus significantly improving production efficiency. 3) This application drives the pressure plate downwards and approaches the sheet material through the pressure plate lifting assembly, so that a rotation gap is formed between the pressure plate and the rotating tray to restrict the sheet material from rotating within the rotation gap, thereby avoiding centrifugal displacement of the sheet material and ensuring smooth rotation. 4) The first and second auxiliary support mechanisms of this application rise up when the plate rotates, providing effective support for the plate on both sides of the rotating pallet; the first and second auxiliary support mechanisms can prevent the plate from bending and deforming downwards on both sides, and avoid interference with the first and second conveyor belts, thereby ensuring the smooth operation of the rotation. 5) In this application, the first pressure beam assembly, the first positioning plate, and the first laser are disposed on the first rotating avoidance mounting base, and the second pressure beam assembly, the second positioning plate, and the second laser are disposed on the second rotating avoidance mounting base. When the first rotating avoidance mounting base and the second rotating avoidance mounting base move synchronously in opposite directions, the first pressure beam assembly, the first positioning plate, and the first laser are synchronously driven to move in opposite directions with the second pressure beam assembly, the second positioning plate, and the second laser. This can form an avoidance area for the plate to rotate between the first rotating avoidance mounting base and the second rotating avoidance mounting base, thereby effectively avoiding interference with the plate and ensuring the smooth operation of the rotation. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the laser glue cutting device (not showing the two side door panels and the top panel) in the embodiments of this application; Figure 2 This is a schematic diagram of the sheet metal conveying mechanism in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the first spacing adjustment component in the embodiments of this application; Figure 4 This is a schematic diagram of the assembly structure of the first and second conveyor timing belts in an embodiment of this application; Figure 5 This is an exploded view of the assembly of the second conveyor timing belt in an embodiment of this application; Figure 6 This is a schematic diagram of the structure of the first sheet positioning mechanism and the first auxiliary support mechanism in the embodiments of this application; Figure 7 This is a schematic diagram of the assembly of the first pressure beam assembly, the first positioning plate, the first laser and the first rotating avoidance mounting base in an embodiment of this application. Figure 8 This is a schematic diagram of the assembly of the first positioning plate and the first positioning plate lifting drive assembly (the second positioning plate and the second positioning plate lifting drive assembly) in the embodiments of this application. Figure 9 This is a schematic diagram of the structure of the laser glue cutting device (the plate leveling mechanism and pressure plate assembly are not shown) in the embodiments of this application; Figure 10 This is a schematic diagram of the laser cutting device (pressure plate assembly not shown) in the embodiments of this application; Figure 11 This is a schematic diagram of the structure of the first pressure beam assembly in the embodiments of this application; Figure 12 This is a schematic diagram of the sheet metal rotation mechanism in an embodiment of this application; Figure 13 This is a schematic diagram of the rotating tray assembly in an embodiment of this application; Figure 14 This is a schematic diagram of the structure of the second auxiliary support mechanism in the embodiments of this application.

[0018] Explanation of reference numerals in the attached figures: 1-Rack; 11-Upper rack; 12-Lower rack; 2-Sheet material conveying mechanism; 21-First conveyor timing belt; 21a-First timing belt mounting base; 22-Second conveyor timing belt; 22a-Second timing belt mounting base; 23-First spacing adjustment assembly; 231-Drive motor; 232-Left-hand lead screw; 23a-Second lead screw nut; 233-Right-hand lead screw; 234-Coupling; 24-Splined shaft; 25-First splined hole bushing; 26-Second splined hole bushing; 27-Busset locking block; 3-First sheet positioning mechanism; 31-Positioning baffle; 32-Baffle translation drive assembly; 321-Thread nut seat; 33-Baffle lifting drive assembly; 4-Second plate positioning mechanism; 41-First positioning plate; 41a-First rotary avoidance mounting seat; 42-Second positioning plate; 42a-Second rotary avoidance mounting seat; 43-First positioning plate lifting drive assembly; 44-Second positioning plate lifting drive assembly; 451, 452-Screw drive assembly; 5-Plate leveling mechanism; 51-First pressure beam assembly; 511-Upper pressure beam; 512-Lower pressure beam; 513-Upper pressure beam lifting drive assembly; 514-Lower pressure beam lifting drive assembly; 52-Second pressure beam assembly; 6- Rubber cutting mechanism; 61- First laser; 62- Second laser; 63- Third spacing adjustment component; 7-Sheet metal rotation mechanism; 71-Pressure plate assembly; 711-Pressure plate; 712-Pressure plate lifting assembly; 72-Rotating pallet assembly; 721-Rotating pallet; 722-Pallet rotation drive assembly; 723-Pallet lifting drive assembly; 8-First auxiliary support mechanism; 81-First support plate; 82-First support plate lifting drive assembly; 9-Second auxiliary support mechanism; 91-Second support plate; 92-Second support plate lifting drive assembly. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0020] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0021] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0022] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0023] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linked," and "socketing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] The following is a detailed description of a laser cutting device according to specific embodiments.

[0025] like Figure 1 As shown, a laser adhesive cutting device includes: a frame 1; a sheet material conveying mechanism 2 mounted on the frame 1 for conveying sheet material from one station to the next; a first sheet material positioning mechanism 3 for aligning the center line of the long side of the sheet material with a first preset center line; a second sheet material positioning mechanism 4 for aligning the center line of the short side or the center line of the long side of the sheet material with the second preset center line; a sheet surface leveling mechanism 5 for pressing two opposite edges of the sheet material along the conveying direction after the second sheet material positioning mechanism 4 completes the positioning operation, in order to maintain the flatness of the sheet material; an adhesive cutting mechanism 6 for cutting adhesive tape on both sides of the sheet material perpendicular to the conveying direction after the sheet surface leveling mechanism 5 completes the leveling operation; and a sheet material rotating mechanism 7 for rotating the sheet material 90° after the adhesive cutting mechanism 6 completes the adhesive cutting operation, in order to perform adhesive cutting on the remaining two sides of the sheet material.

[0026] like Figure 1 As shown, the rack 1 includes an upper rack 11 and a lower rack 12.

[0027] like Figure 1 and Figure 2 As shown, the sheet metal conveying mechanism 2 includes a first synchronous conveying belt 21 and a second synchronous conveying belt 22 arranged in parallel and at intervals, and a first spacing adjustment component 23. The first synchronous conveying belt 21 is mounted on a first synchronous belt mounting base 21a, and the second synchronous conveying belt 22 is mounted on a second synchronous belt mounting base 22a; both the first synchronous belt mounting base 21a and the second synchronous belt mounting base 22a are slidably engaged with the lower frame 12. The first spacing adjustment component 23 is configured to drive the first synchronous belt mounting base 21a and the second synchronous belt mounting base 22a to move synchronously towards or away from each other, thereby adjusting the spacing between the first synchronous conveying belt 21 and the second synchronous conveying belt 22 to accommodate the conveying needs of sheets of different sizes.

[0028] In a preferred embodiment, such as Figure 2 and Figure 3 As shown, the first spacing adjustment assembly 23 includes a drive motor 231, a left-hand lead screw 232, and a right-hand lead screw 233 mounted on the lower frame 12; the left-hand lead screw 232 and the right-hand lead screw 233 are connected by a coupling 234. A first synchronous belt mounting seat 21a is connected to the left-hand lead screw 232 via a first lead screw nut (not shown in the figure), and a second synchronous belt mounting seat 22a is connected to the right-hand lead screw 233 via a second lead screw nut 23a. When the drive motor 231 drives the left-hand lead screw 232 and the right-hand lead screw 233 to rotate synchronously, it causes the first synchronous belt mounting seat 21a and the second synchronous belt mounting seat 22a to move synchronously towards or away from each other, thereby adjusting the spacing between the first conveyor synchronous belt 21 and the second conveyor synchronous belt 22.

[0029] like Figure 4 and Figure 5 As shown, the sheet metal conveying mechanism 2 also includes a splined shaft 24, on which a first splined hole bushing 25 and a second splined hole bushing 26 are fitted, and both the first splined hole bushing 25 and the second splined hole bushing 26 are splinedly engaged with the splined shaft 24. A first conveying synchronous belt 21 and a first synchronous belt mounting seat 21a are both mounted on the first splined hole bushing 25, and a second conveying synchronous belt 22 and a second synchronous belt mounting seat 22a are both mounted on the second splined hole bushing 26. Bushing locking blocks 27 are provided on both sides of the second splined hole bushing 26 on the splined shaft 24 to axially limit the second splined hole bushing 26. The first splined hole bushing 25 is in sliding engagement with the splined shaft 24.

[0030] When the drive motor 231 drives the first synchronous belt mounting base 21a and the second synchronous belt mounting base 22a to move synchronously towards or away from each other, the first synchronous belt mounting base 21a drives the first spline hole bushing 25 to move axially along the spline shaft 24, while the second synchronous belt mounting base 22a drives the second spline hole bushing 26 and the spline shaft 24 to move axially synchronously.

[0031] like Figure 1 and Figure 2 As shown, the first sheet metal positioning mechanism 3 is disposed on the lower frame 12 and located between the first conveyor synchronous belt 21 and the second conveyor synchronous belt 22. Figure 6 As shown, the first sheet metal positioning mechanism 3 includes a positioning baffle 31, a baffle translation drive assembly 32, and a baffle lifting drive assembly 33. The baffle lifting drive assembly 33 is connected to the positioning baffle 31 and is used to drive the positioning baffle 31 to rise and fall; the baffle translation drive assembly 32 is connected to the baffle lifting drive assembly 33 and is used to drive the baffle lifting drive assembly 33 and the positioning baffle 31 to move in the horizontal direction.

[0032] In a preferred embodiment, the baffle lifting drive assembly 33 is a cylinder drive assembly connected to the positioning baffle 31 to drive the positioning baffle 31 to move between a position higher than the sheet metal and a position lower than the sheet metal; the baffle translation drive assembly 32 is a screw drive assembly mounted on the lower frame 12, and the cylinder drive assembly is mounted on the screw nut 321 of the screw drive assembly. It should be noted that the baffle lifting drive assembly 33 is not limited to a cylinder drive assembly; it can also be driven by a motor or hydraulic system, as long as it can achieve the lifting action of the positioning baffle 31. Similarly, the baffle translation drive assembly 32 is not limited to a screw drive assembly; it can also be driven by a rack and pinion or a synchronous belt, as long as it can achieve horizontal movement.

[0033] like Figures 7 to 9As shown, the second plate positioning mechanism 4 includes a first positioning plate 41, a second positioning plate 42, a first positioning plate lifting drive assembly 43, a second positioning plate lifting drive assembly 44, and a second spacing adjustment assembly.

[0034] The first positioning plate lifting drive assembly 43 is connected to the first positioning plate 41 to drive the first positioning plate 41 to move between a position higher than the plate and a position lower than the plate; the second positioning plate lifting drive assembly 44 is connected to the second positioning plate 42 to drive the second positioning plate 42 to move between a position higher than the plate and a position lower than the plate.

[0035] In a preferred embodiment, such as Figure 8 As shown, the first positioning plate lifting drive assembly 43 and the second positioning plate lifting drive assembly 44 are cylinder-driven assemblies. It should be noted that the first positioning plate lifting drive assembly 43 and the second positioning plate lifting drive assembly 44 are not limited to cylinder-driven assemblies, but can also be driven by motors or hydraulics, as long as they can realize the lifting action of the first positioning plate 41 and the second positioning plate 42.

[0036] The first positioning plate lifting drive assembly 43 is disposed on the first rotating avoidance mounting base 41a, and the second positioning plate lifting drive assembly 44 is disposed on the second rotating avoidance mounting base 42a. The first rotating avoidance mounting base 41a is mounted on and slidably engages with the first synchronous belt mounting base 21a; the second rotating avoidance mounting base 42a is mounted on and slidably engages with the second synchronous belt mounting base 22a.

[0037] The second spacing adjustment component connects the first rotating avoidance mounting base 41a and the second rotating avoidance mounting base 42a, and is used to drive the first rotating avoidance mounting base 41a and the second rotating avoidance mounting base 42a to move synchronously towards or away from each other, thereby driving the first positioning plate lifting drive component 43 (and the first positioning plate 41) and the second positioning plate lifting drive component 44 (and the second positioning plate 42) to move synchronously towards or away from each other, thereby adjusting the spacing between the first positioning plate 41 and the second positioning plate 42 to be equal to the short side dimension or the long side dimension, so that the center line of the short side or the center line of the long side of the plate coincides with the second preset center line.

[0038] In a preferred embodiment, the second pitch adjustment assembly includes four sets of lead screw drive assemblies, such as... Figure 9As shown, there are two sets of lead screw drive assemblies 451 and 452; the lead screw nut of lead screw drive assembly 451 is connected to the first rotary clearance mounting seat 41a, and the lead screw nut of lead screw drive assembly 452 is connected to the second rotary clearance mounting seat 42a. It should be noted that the second pitch adjustment assembly is not limited to lead screw drive assemblies; it can also use gear and rack drives or synchronous belt drives, as long as horizontal movement can be achieved.

[0039] like Figure 10 As shown, the plate leveling mechanism 5 includes a first pressure beam assembly 51 and a second pressure beam assembly 52; the first pressure beam assembly 51 and the second pressure beam assembly 52 are respectively disposed on the first rotary avoidance mounting base 41a and the second rotary avoidance mounting base 42a.

[0040] like Figure 11 As shown, the first pressure beam assembly 51 includes an upper pressure beam 511 and a lower pressure beam 512 arranged opposite each other, an upper pressure beam lifting drive assembly 513 for driving the upper pressure beam 511 to rise and fall, and a lower pressure beam lifting drive assembly 514 for driving the lower pressure beam 512 to rise and fall. The output force of the lower pressure beam lifting drive assembly 514 is greater than the output force of the upper pressure beam lifting drive assembly 513, so as to drive the lower pressure beam 512 to move upward against the load and, together with the upper pressure beam 511, press the edge of the sheet metal.

[0041] In a preferred embodiment, the upper pressure beam lifting drive assembly 513 includes two sets of cylinder drive assemblies, which are respectively disposed at both ends of the upper pressure beam 511. The lower pressure beam lifting drive assembly 514 also includes two sets of cylinder drive assemblies, which are respectively disposed at both ends of the lower pressure beam 512. It should be noted that the upper pressure beam lifting drive assembly 513 and the lower pressure beam lifting drive assembly 514 are not limited to cylinder drive assemblies, and can also be driven by a motor or hydraulic system, as long as the lifting action of the upper pressure beam 511 and the lower pressure beam 512 can be realized.

[0042] The structure of the second pressure beam assembly 52 is exactly the same as that of the first pressure beam assembly 51, and will not be described again.

[0043] like Figure 9 As shown, the rubber cutting mechanism 6 includes a first laser 61, a second laser 62, and a third spacing adjustment component 63.

[0044] The first laser 61 and the second laser 62 are respectively disposed on the first rotary clearance mounting base 41a and the second rotary clearance mounting base 42a. The first laser 61 is located on the feeding side in the conveying direction, and the second laser 62 is located on the discharging side in the conveying direction. The light emission directions of the first laser 61 and the second laser 62 are perpendicular to the conveying direction of the sheet material, so as to cut the tape on the two opposite edges of the sheet material respectively.

[0045] The third spacing adjustment component 63 is connected to the first laser 61 and the second laser 62, and is used to drive the first laser 61 and the second laser 62 to move synchronously towards or away from each other along the conveying direction of the sheet.

[0046] In a preferred embodiment, the third pitch adjustment assembly 63 includes two sets of lead screw drive assemblies. One set of lead screw drive assemblies is connected to the first laser 61 via a lead screw nut, and the other set of lead screw drive assemblies is connected to the second laser 62 via a lead screw nut. It should be noted that the third pitch adjustment assembly 63 is not limited to lead screw drive assemblies; it can also employ gear and rack drives or synchronous belt drives, as long as horizontal movement can be achieved.

[0047] like Figure 1 As shown, the sheet metal rotation mechanism 7 is located between the first conveyor synchronous belt 21 and the second conveyor synchronous belt 22. Figure 12 As shown, the sheet metal rotation mechanism 7 includes a pressure plate assembly 71 and a rotating pallet assembly 72 arranged opposite each other. The pressure plate assembly 71 is located on the upper frame 11, and the rotating pallet assembly 72 is located on the lower frame 12.

[0048] like Figure 12 As shown, the pressure plate assembly 71 includes a pressure plate 711 and a pressure plate lifting assembly 712 for driving the pressure plate 711 to rise and fall. In a preferred embodiment, the pressure plate lifting assembly 712 is a cylinder-driven assembly connected to the pressure plate 711. It should be noted that the pressure plate lifting assembly 712 is not limited to a cylinder-driven assembly; it can also be driven by a motor or hydraulically, as long as it can achieve the lifting and lowering action of the pressure plate 711.

[0049] like Figure 13 As shown, the rotating pallet assembly 72 includes a rotating pallet 721, a pallet rotation drive assembly 722, and a pallet lifting drive assembly 723. The pallet rotation drive assembly 722 is connected to the rotating pallet 721 and is used to drive the rotating pallet 721 to rotate; the pallet lifting drive assembly 723 is connected to the pallet rotation drive assembly 722 and is used to drive the pallet rotation drive assembly 722 and the rotating pallet 721 to lift synchronously, so that the rotating pallet 721 is higher or lower than the first conveyor synchronous belt and the second conveyor synchronous belt.

[0050] In a preferred embodiment, the pallet rotation drive assembly 722 is a rotary cylinder assembly. The pallet lifting drive assembly 723 is a cylinder drive assembly. It should be noted that the pallet rotation drive assembly 722 is not limited to a rotary cylinder assembly; it can also employ a motor with a reducer, rack and pinion transmission, or friction wheel transmission, as long as it can achieve the rotational movement of the rotating pallet 721. Similarly, the pallet lifting drive assembly 723 is not limited to a cylinder drive assembly; it can also employ a motor drive or hydraulic drive, as long as it can achieve the lifting movement of the rotating pallet 721.

[0051] During the rotation of the sheet metal, to prevent interference between the sheet metal and the first and second conveyor belts, the rotating pallet 721 is raised above the first and second conveyor belts. Simultaneously, the pressure plate lifting assembly 712 drives the pressure plate 711 downwards towards the sheet metal, creating a rotational gap between it and the rotating pallet 721. This restricts the sheet metal's rotation within the gap, preventing centrifugal displacement and ensuring smooth rotation.

[0052] To accommodate the rotation of large sheet metal, in this embodiment, as follows: Figure 12 As shown, the laser cutting device also includes a first auxiliary support mechanism 8 and a second auxiliary support mechanism 9. Along the sheet material conveying direction, the first auxiliary support mechanism 8 and the second auxiliary support mechanism 9 are respectively located on the discharge side and the feed side of the sheet material rotating mechanism 7. The first auxiliary support mechanism 8 and the second auxiliary support mechanism 9 rise when the sheet material rotates to support the sheet material located on both sides of the rotating tray 721, preventing downward bending deformation of the sheet material on both sides and avoiding interference with the first and second conveyor belts, thereby ensuring smooth rotation.

[0053] like Figure 2 As shown, the first sheet positioning mechanism 3 and the sheet rotating mechanism 7 are arranged sequentially along the conveying direction, with the first sheet positioning mechanism 3 located on the discharge side of the conveying direction and the sheet rotating mechanism 7 located on the feed side of the conveying direction. The first auxiliary support mechanism 8 is disposed between the first sheet positioning mechanism 3 and the sheet rotating mechanism 7.

[0054] like Figure 6 As shown, the first auxiliary support mechanism 8 includes a first support plate 81 and a first support plate lifting drive assembly 82; the first support plate lifting drive assembly 82 is connected to the first support plate 81 and is used to drive the first support plate 81 to lift. In a preferred embodiment, the first support plate lifting drive assembly 82 is a cylinder drive assembly.

[0055] like Figure 14As shown, the second auxiliary support mechanism 9 includes a second support plate 91 and a second support plate lifting drive assembly 92; the second support plate lifting drive assembly 92 is connected to the second support plate 91 and is used to drive the second support plate 91 to lift. In a preferred embodiment, the second support plate lifting drive assembly 92 is a cylinder drive assembly.

[0056] It should be noted that the first support plate lifting drive assembly 82 and the second support plate lifting drive assembly 92 are not limited to cylinder drive assemblies, but can also be driven by motors or hydraulics, as long as they can realize the lifting action of the first support plate 81 and the second support plate 91.

[0057] In this embodiment, as Figures 1 to 11 As shown, the first pressure beam assembly 51, the first positioning plate 41, and the first laser 61 are all disposed on the first rotating avoidance mounting base 41a and located outside the first conveyor synchronous belt 21, arranged sequentially from the inside out; the second pressure beam assembly 52, the second positioning plate 42, and the second laser 62 are all disposed on the second rotating avoidance mounting base 42a and located outside the second conveyor synchronous belt 22, arranged sequentially from the inside out. When the second spacing adjustment assembly drives the first rotating avoidance mounting base 41a and the second rotating avoidance mounting base 42a to move synchronously towards or away from each other, the first pressure beam assembly 51, the first positioning plate 41, and the first laser 61, as well as the second pressure beam assembly 52, the second positioning plate 42, and the second laser 62 disposed on the first rotating avoidance mounting base 41a and the second rotating avoidance mounting base 42a, respectively, move synchronously towards or away from each other. When the first rotating avoidance mounting base 41a and the second rotating avoidance mounting base 42a move synchronously in opposite directions, a clearance area for the plate to rotate can be formed between the first rotating avoidance mounting base 41a and the second rotating avoidance mounting base 42a, avoiding interference with the plate and thus ensuring the smooth operation of the rotation.

[0058] This embodiment also includes a control mechanism, which acquires the short side dimension and long side dimension of the sheet before the feeding action is executed.

[0059] In a preferred embodiment, the laser adhesive cutting device cuts the sheet tape sequentially, first along the shorter side and then along the longer side. The specific workflow is as follows: The control mechanism obtains the short side and long side dimensions of the sheet metal.

[0060] The control mechanism generates a first spacing control signal based on the acquired short side dimension of the sheet material and sends it to the first spacing adjustment component 23. In response to the first spacing control signal, the first spacing adjustment component 23 drives the first synchronous belt mounting base 21a and the second synchronous belt mounting base 22a, causing the first conveying synchronous belt 21 and the second conveying synchronous belt 22 to move synchronously towards or away from each other, so that the spacing between the first conveying synchronous belt 21 and the second conveying synchronous belt 22 is adjusted to be smaller than the short side dimension of the sheet material, so that the two long sides of the sheet material can be stably placed on the first conveying synchronous belt 21 and the second conveying synchronous belt 22, thereby ensuring the conveying of the sheet material.

[0061] The control mechanism generates a baffle translation signal based on the acquired long side dimension of the sheet material and sends it to the baffle translation drive assembly 32. Simultaneously, the control mechanism sends a signal to the baffle lifting drive assembly 33, driving the positioning baffle 31 to rise above the first conveyor belt 21 and the second conveyor belt 22. Responding to the baffle translation signal, the baffle translation drive assembly 32 drives the positioning baffle 31 to move horizontally to the target calculated position, so that the center line of the long side of the sheet material coincides with the first preset center line. When the sheet material is conveyed to the positioning baffle 31 by the first conveyor belt 21 and the second conveyor belt 22 and triggers the limit switch, the control mechanism receives the signal and immediately controls the first conveyor belt 21 and the second conveyor belt 22 to stop conveying.

[0062] The control mechanism generates a second spacing control signal based on the acquired short side dimension of the sheet metal and sends it to the second spacing adjustment component. The control mechanism sends signals to the first positioning plate lifting drive component 43 and the second positioning plate lifting drive component 44, driving the first positioning plate 41 and the second positioning plate 42 to rise above the first conveyor synchronous belt 21 and the second conveyor synchronous belt 22. Responding to the second spacing control signal, the second spacing adjustment component drives the first rotating avoidance mounting base 41a and the second rotating avoidance mounting base 42a, causing the first positioning plate 41 and the second positioning plate 42 to move synchronously towards or away from each other, thereby adjusting the spacing between the first positioning plate 41 and the second positioning plate 42 to be equal to the short side dimension, thus aligning the center line of the short side of the sheet metal with the second preset center line.

[0063] Through the coordinated operation of the first plate positioning mechanism 3 and the second plate positioning mechanism 4, the plate is transported to the predetermined position to complete the preparation work before cutting.

[0064] Subsequently, the control mechanism sends signals to the first pressure beam assembly 51 and the second pressure beam assembly 52, driving the upper and lower pressure beams of the first pressure beam assembly 51 and the second pressure beam assembly 52 to move together and press the long edge of the sheet material. At this time, the short edge of the sheet material remains flat, thereby ensuring that the laser beam can act evenly and completely on the tape at the short edge, ensuring the cutting effect.

[0065] The control mechanism generates a third spacing control signal based on the acquired long side dimension of the sheet material and sends it to the third spacing adjustment component. Responding to the third spacing control signal, the third spacing adjustment component drives the first laser 61 and the second laser 62 to move synchronously towards or away from each other along the sheet material's conveying direction. This ensures that the beam spacing between the first laser 61 and the second laser 62 adapts to the long side dimension of the sheet material, allowing the laser beam to be precisely projected onto the short edge of the sheet material, thereby cutting the tape on the short edge.

[0066] After the short side is cut, the sheet metal is rotated to cut the long side. Before cutting the long side, the control mechanism generates a rotation avoidance signal based on the acquired long side dimensions of the sheet metal and sends it to the second spacing adjustment component. Responding to the rotation avoidance signal, the second spacing adjustment component drives the first rotation avoidance mounting base 41a and the second rotation avoidance mounting base 42a to move synchronously in opposite directions, thereby forming a clearance area between the first rotation avoidance mounting base 41a and the second rotation avoidance mounting base 42a for the sheet metal to rotate.

[0067] Subsequently, the control mechanism sends a signal to the pallet lifting drive assembly 723, driving the rotating pallet 721 to rise above the first conveyor synchronous belt 21 and the second conveyor synchronous belt 22. Simultaneously, signals are sent to the first support plate lifting drive assembly 82 and the second support plate lifting drive assembly 92, driving the first support plate 81 and the second support plate 91 to rise above the first conveyor synchronous belt 21 and the second conveyor synchronous belt 22. A signal is sent to the baffle lifting drive assembly 33, driving the positioning baffle 31 to descend below the first conveyor synchronous belt 21 and the second conveyor synchronous belt 22. A signal is also sent to the pressure plate lifting assembly 712, driving the pressure plate 711 downwards towards the sheet material, creating a rotational gap between it and the rotating pallet 721. This restricts the sheet material's rotation within the rotational gap, preventing centrifugal displacement and ensuring smooth rotation.

[0068] The control mechanism sends a signal to the tray rotation drive assembly 722, driving the rotating tray 721 to rotate 90°.

[0069] After rotation, the control mechanism generates a second spacing control signal based on the acquired long side dimension of the sheet material and sends it to the second spacing adjustment component. Responding to the second spacing control signal, the second spacing adjustment component drives the first rotating avoidance mounting base 41a and the second rotating avoidance mounting base 42a, causing the first positioning plate 41 and the second positioning plate 42 to move synchronously towards each other. This adjusts the spacing between the first positioning plate 41 and the second positioning plate 42 to be equal to the long side dimension, thereby aligning the center line of the long side of the sheet material with the second preset center line.

[0070] Subsequently, the control mechanism sends signals to the first pressure beam assembly 51 and the second pressure beam assembly 52, driving the upper and lower pressure beams of the first pressure beam assembly 51 and the second pressure beam assembly 52 to move together and press the short edge of the sheet material. At this time, the long edge of the sheet material remains flat, thereby ensuring that the laser beam can act evenly and completely on the tape at the long edge, ensuring the cutting effect.

[0071] The control mechanism generates a third spacing control signal based on the acquired short side dimension of the sheet material and sends it to the third spacing adjustment component. Responding to the third spacing control signal, the third spacing adjustment component drives the first laser 61 and the second laser 62 to move synchronously towards each other along the sheet material's conveying direction. This ensures that the beam spacing between the first laser 61 and the second laser 62 adapts to the short side dimension of the sheet material, allowing the laser beam to be precisely projected onto the long side edge of the sheet material, thereby cutting the tape along the long side edge.

[0072] In another embodiment, the laser adhesive cutting device can also cut the sheet tape sequentially in the order of first the long side and then the short side. The specific working process is the same as that of first the short side and then the long side, and will not be described again here.

[0073] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A laser adhesive cutting device, characterized in that, include: frame; A sheet metal conveying mechanism includes a first and a second synchronous conveying belt arranged in parallel and at intervals, and a first spacing adjustment component; the first and the second synchronous conveying belts are respectively disposed on a first synchronous belt mounting base and a second synchronous belt mounting base mounted on the frame; the first spacing adjustment component is connected to the first and the second synchronous belt mounting bases and is configured to drive the first and the second synchronous belt mounting bases to move synchronously towards or away from each other, so as to adjust the spacing between the first and the second synchronous conveying belts; The first plate positioning mechanism is mounted on the frame and located between the first conveyor synchronous belt and the second conveyor synchronous belt; the first plate positioning mechanism includes a positioning baffle, a baffle translation drive assembly, and a baffle lifting drive assembly; The baffle lifting drive assembly is connected to the positioning baffle and is used to drive the positioning baffle to lift and lower; the baffle translation drive assembly is connected to the baffle lifting drive assembly and is used to drive the baffle lifting drive assembly and the positioning baffle to move in the horizontal direction. The second sheet metal positioning mechanism includes a first positioning plate, a second positioning plate, and a second spacing adjustment component. The first positioning plate and the second positioning plate are respectively disposed on a first rotating avoidance mounting base and a second rotating avoidance mounting base, which are respectively mounted on a first synchronous belt mounting base and a second synchronous belt mounting base. The second spacing adjustment component is connected to the first rotating avoidance mounting base and the second rotating avoidance mounting base and is configured to drive the first rotating avoidance mounting base and the second rotating avoidance mounting base to move synchronously towards or away from each other. The panel leveling mechanism includes a first pressure beam assembly and a second pressure beam assembly, which are respectively disposed on the first rotating avoidance mounting base and the second rotating avoidance mounting base; both the first pressure beam assembly and the second pressure beam assembly include an upper pressure beam and a lower pressure beam arranged opposite to each other, an upper pressure beam lifting drive assembly for driving the upper pressure beam to rise and fall, and a lower pressure beam lifting drive assembly for driving the lower pressure beam to rise and fall; A rubber cutting mechanism includes a first laser, a second laser, and a third spacing adjustment component; the first laser and the second laser are respectively disposed on the first rotating avoidance mounting base and the second rotating avoidance mounting base; the third spacing adjustment component is connected to the first laser and the second laser and is configured to drive the first laser and the second laser to move synchronously towards each other or away from each other along the conveying direction of the sheet material; A sheet metal rotation mechanism is mounted on the frame and located between the first and second synchronous conveyor belts. The sheet metal rotation mechanism includes a pressure plate assembly and a rotating pallet assembly arranged vertically opposite each other. The pressure plate assembly includes a pressure plate and a pressure plate lifting assembly for driving the pressure plate to rise and fall. The rotating pallet assembly includes a rotating pallet, a pallet rotation drive assembly, and a pallet lifting drive assembly. The pallet rotation drive assembly is connected to the rotating pallet and drives the rotating pallet to rotate. The pallet lifting drive assembly is connected to the pallet rotation drive assembly and drives the pallet rotation drive assembly and the rotating pallet to rise and fall synchronously. The first plate positioning mechanism and the plate rotating mechanism are arranged sequentially along the conveying direction, with the first plate positioning mechanism located on the discharge side of the conveying direction and the plate rotating mechanism located on the feed side of the conveying direction. The first pressure beam assembly, the first positioning plate, and the first laser are all located on the outer side of the first conveyor belt and arranged sequentially from the inside to the outside; the second pressure beam assembly, the second positioning plate, and the second laser are all located on the outer side of the second conveyor belt and arranged sequentially from the inside to the outside.

2. The laser cutting apparatus according to claim 1, characterized in that, It also includes control mechanisms; The control mechanism is used to acquire the long side dimension and short side dimension of the sheet metal, and execute the following control logic: generate a first spacing control signal based on the short side dimension and send it to the first spacing adjustment component; generate a baffle translation signal based on the long side dimension and send it to the baffle translation drive component; generate a second spacing control signal and a third spacing control signal based on the short side dimension or the long side dimension, and send them to the second spacing adjustment component and the third spacing adjustment component respectively; and generate a rotation avoidance signal based on the long side dimension and send it to the second spacing adjustment component. The first spacing adjustment component is configured to drive the first synchronous belt mounting base and the second synchronous belt mounting base in response to the first spacing control signal, thereby causing the first conveyor synchronous belt and the second conveyor synchronous belt to move synchronously towards or away from each other, so that the spacing between the first conveyor synchronous belt and the second conveyor synchronous belt is adjusted to be less than the short side dimension. The baffle translation drive assembly is configured to drive the positioning baffle to move horizontally to the target calculated position in response to the baffle translation signal, so that the center line of the long side of the sheet coincides with the first preset center line; The second spacing adjustment component is configured to respond to the second spacing control signal to drive the first rotating avoidance mounting base and the second rotating avoidance mounting base, thereby causing the first positioning plate and the second positioning plate to move synchronously towards or away from each other, thereby adjusting the spacing between the first positioning plate and the second positioning plate to be equal to the short side dimension or the long side dimension, so that the center line of the short side or the center line of the long side of the plate coincides with the second preset center line; The third spacing adjustment component is configured to drive the first laser and the second laser to move synchronously towards or away from each other along the conveying direction of the sheet metal in response to the third spacing control signal, so that the light emission spacing of the first laser and the second laser adapts to the short side dimension or the long side dimension. The second spacing adjustment component is configured to drive the first and second rotating avoidance mounting seats to move synchronously in opposite directions in response to the rotation avoidance signal, so as to form an avoidance area between the first and second rotating avoidance mounting seats for the sheet metal to rotate.

3. The laser cutting apparatus according to claim 1, characterized in that, The first pitch adjustment assembly includes a drive motor, a left-hand lead screw, and a right-hand lead screw mounted on the frame; the left-hand lead screw and the right-hand lead screw are connected by a coupling. The first synchronous belt mounting base and the second synchronous belt mounting base are respectively connected to the left-hand lead screw and the right-hand lead screw via the first lead screw seat and the second lead screw seat; the drive motor is configured to drive the left-hand lead screw and the right-hand lead screw to rotate synchronously, so as to drive the first synchronous belt mounting base and the second synchronous belt mounting base to move synchronously towards or away from each other.

4. The laser cutting apparatus according to claim 1, characterized in that, The sheet metal conveying mechanism further includes a spline shaft, on which a first spline hole bushing and a second spline hole bushing are sleeved, and both the first spline hole bushing and the second spline hole bushing are engaged with the splines of the spline shaft. The first synchronous conveyor belt and the first synchronous belt mounting base are both installed on the first splined hole bushing, and the second synchronous conveyor belt and the second synchronous belt mounting base are both installed on the second splined hole bushing; bushing locking blocks are provided on both sides of the second splined hole bushing on the splined shaft to axially limit the second splined hole bushing, and the first splined hole bushing slides with the splined shaft.

5. The laser cutting apparatus according to claim 1, characterized in that, The baffle lifting drive assembly is a cylinder drive assembly, which is connected to the positioning baffle to drive the positioning baffle to move between a position higher than the plate and a position lower than the plate. The baffle translation drive assembly is a lead screw drive assembly, which is mounted on the frame, and the cylinder drive assembly is mounted on the lead screw nut of the lead screw drive assembly.

6. The laser cutting apparatus according to claim 1, characterized in that, The second sheet metal positioning mechanism further includes a first positioning plate lifting drive assembly and a second positioning plate lifting drive assembly; the first positioning plate lifting drive assembly is connected to the first positioning plate to drive the first positioning plate to move between a position higher than the sheet metal and a position lower than the sheet metal; the second positioning plate lifting drive assembly is connected to the second positioning plate to drive the second positioning plate to move between a position higher than the sheet metal and a position lower than the sheet metal.

7. The laser cutting apparatus according to claim 1, characterized in that, The output force of the lower pressure beam lifting drive assembly is greater than the output force of the upper pressure beam lifting drive assembly, so as to drive the lower pressure beam to move upward against the load and press the edge of the plate together with the upper pressure beam.

8. The laser cutting apparatus according to claim 1, characterized in that, The first laser is located on the feeding side in the conveying direction, and the second laser is located on the discharging side in the conveying direction, so as to cut the tape on the two opposite edges of the sheet material respectively; The light emission directions of the first laser and the second laser are perpendicular to the conveying direction of the sheet material.

9. The laser cutting apparatus according to claim 1, characterized in that, The pressure plate lifting assembly is a cylinder drive assembly. The cylinder drive assembly is connected to the pressure plate to drive the pressure plate to move downward toward the plate when the plate rotates, and to form a rotation gap between the pressure plate and the rotating tray. The pallet rotation drive assembly is a rotary cylinder assembly connected to the rotary pallet for driving the rotary pallet to rotate; the pallet lifting drive assembly is a cylinder drive assembly connected to the pallet rotation drive assembly for driving the pallet rotation drive assembly and the rotary pallet to lift synchronously, so that the rotary pallet is higher or lower than the first conveyor synchronous belt and the second conveyor synchronous belt.

10. The laser cutting apparatus according to claim 1 or 9, characterized in that, It also includes a first auxiliary support mechanism and a second auxiliary support mechanism; along the conveying direction of the sheet material, the first auxiliary support mechanism and the second auxiliary support mechanism are respectively disposed on the discharge side and the feed side of the sheet material rotating mechanism; the first auxiliary support mechanism and the second auxiliary support mechanism are configured to rise when the sheet material rotates to support the sheet material located on both sides of the rotating tray.

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