Automatic cutter adjusting device and method for cutting machine

Abstract

The invention belongs to the technical field of cutting machines, and relates to an automatic tool setting device and method for a cutting machine. The nicking tool carriage is mounted on the main body frame in a sliding manner; the depth-adjustable carving knife is mounted on a knife holder of the carving knife carriage, and a knob for adjusting the extension length of a knife head is arranged on the depth-adjustable carving knife; the adjusting part can be meshed with a knob of the depth-adjustable carving knife; the central control unit is used for controlling the displacement of the nicking tool carriage and the rotation of the adjusting part; wherein the adjusting part is used for driving a knob of the depth-adjustable carving knife to rotate according to a control signal of the central control unit, so that the knife depth of the depth-adjustable carving knife is adjusted.

Description

Technical Field

[0001] This invention belongs to the field of cutting machine technology and relates to an automatic blade adjustment device and method for a cutting machine. Background Technology

[0002] Existing cutting equipment is widely used in advertising film application, packaging plate making, leather cutting, paper art engraving, and other fields. It typically adapts to the thickness and properties of different materials by changing different types or lengths of blades, or adjusting the blade's extension depth. In traditional techniques, blade adjustment usually relies on the operator's experience, achieved by manually rotating an adjustment knob on the blade head or using a shifting mechanism.

[0003] This type of manual tool adjustment method has several shortcomings: First, different materials require different tool depths, and frequent material changes necessitate multiple interruptions in the cutting process for manual adjustment, severely impacting continuous operation efficiency. Second, adjustment relies on manual judgment, which can easily lead to poor cutting or tool wear due to insufficient experience or misjudgment. Third, manual adjustment structures are generally prone to misoperation, and some adjustment mechanisms lack positioning feedback mechanisms, making tool depth deviations likely. Furthermore, some existing equipment with automatic control functions has complex and costly tool head structures and lacks dynamic linkage with material information, making it difficult to meet the current demands for flexible, small-batch, and intelligent processing.

[0004] Therefore, there is an urgent need for an automatic blade adjusting device and method that is compact in structure, reliable in operation, precise in adjustment, and easy to control, so as to improve the intelligence level and ease of use of cutting equipment. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing an automatic blade adjustment device and method for cutting machines, thereby overcoming the problems of low efficiency, reliance on experience, and susceptibility to misadjustment in manual blade adjustment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An automatic blade adjusting device for a cutting machine, comprising:

[0008] Main framework;

[0009] A carving knife sports car, which is slidably mounted on the main frame;

[0010] An adjustable deep engraving tool is mounted on the tool holder of a carving tool carriage, and the adjustable deep engraving tool is equipped with a knob for adjusting the extension length of the tool tip;

[0011] An adjustment section, which can engage with a knob on an adjustable deep-penetrating knife;

[0012] The central control unit is used to control the displacement of the carving knife carriage and the rotation of the adjustment part;

[0013] The adjustment unit is used to drive the knob of the adjustable deep incision knife to rotate according to the control signal of the central control unit, thereby adjusting the depth of the adjustable deep incision knife.

[0014] Furthermore, the adjustment unit includes an adjustment motor and an adjustment gear set;

[0015] The knob has teeth on its surface that can mesh with the gears of the adjusting gear set, and the adjusting motor drives the knob of the adjusting gear set to rotate through the adjusting gear set.

[0016] Furthermore, it also includes an information input unit, which is used to receive cutting tool adjustment information and transmit it to the central control unit.

[0017] Furthermore, the information input unit is a camera module, a wireless information transmission module, or a data transmission port.

[0018] Furthermore, the adjustment part is mounted on the main frame and is located on the side wall of the main frame;

[0019] The carving knife carriage can be moved to the edge of its travel to engage the adjustable carving knife knob.

[0020] Furthermore, the adjustment unit is mounted on the carving knife carriage, and the adjustment unit moves synchronously with the carving knife carriage.

[0021] An automatic blade adjustment method for a cutting machine, applied to the aforementioned automatic blade adjustment device for a cutting machine, includes the following steps:

[0022] Set the initial setting L of the adjustable deep cutting knife to 0;

[0023] Obtain the cutting file and extract the target data N for the depth of cut;

[0024] Compare the gear setting data L and the blade depth setting data N. If L is not equal to N, the adjustable blade depth is adjusted by rotating the knob of the adjustable blade through the adjustment unit. If L is equal to N, the cutting task is executed.

[0025] Furthermore, the method of adjusting the cutting depth by rotating the knob of the adjustable cutting tool through the adjustment unit specifically includes the following steps:

[0026] The adjustment unit reverses the drive of the adjustable deep penetration knife knob to the mechanical limit, thus returning the adjustable deep penetration knife to its 0 position.

[0027] The adjustment section rotates forward again to adjust the gear of the adjustable deep cutting tool so that the gear data L equals the gear target data N.

[0028] By applying the technical solution of this invention, the depth of cut can be automatically adjusted based on the input material information or cutting task data, without manual intervention, effectively improving work efficiency and cutting accuracy. Through the meshing transmission method of the adjustment unit and the rotating unit, the structure is simple and the operation is stable, making it suitable for various cutting machine platforms. The zero-reset-positive positioning adjustment logic ensures the accuracy of each depth of cut adjustment and avoids error accumulation. Combined with an expandable barcode scanning or remote command input module, it can interface with intelligent production systems such as host computers and MES systems, possessing excellent potential for intelligent upgrades.

[0029] Other features and advantages of the invention will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0030] The present invention will now be described in detail with reference to the accompanying drawings, so that the above-mentioned advantages of the present invention will become more apparent.

[0031] Figure 1 This is a schematic diagram of an automatic blade adjusting device for a cutting machine according to the present invention;

[0032] Figure 2 This is a schematic diagram of the structure of an automatic blade adjusting device for a cutting machine according to the present invention;

[0033] Figure 3 This is a schematic diagram of an embodiment of an automatic blade adjusting device for a cutting machine according to the present invention;

[0034] Figure 4 This is a partial exploded view of an automatic blade adjusting device for a cutting machine according to the present invention;

[0035] Figure 5 This is a schematic diagram of the engraving knife of an automatic knife adjusting device for a cutting machine according to the present invention;

[0036] Figure 6 This is a schematic diagram of a camera module for an automatic blade adjustment device for a cutting machine according to the present invention;

[0037] Figure 7 This is a flowchart of an automatic blade adjustment method for a cutting machine according to the present invention. Detailed Implementation

[0038] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0039] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0041] In the embodiments of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0042] Reference Appendix Figure 1 As shown in Figure ***, an automatic blade adjusting device for a cutting machine includes:

[0043] Main framework 100;

[0044] A carving knife carriage 200 is slidably mounted on the main frame 100;

[0045] An adjustable deep carving knife 300 is mounted on the knife holder of a carving knife carriage 200, and the adjustable deep carving knife 300 is provided with a knob 310 for adjusting the extension length of the knife head;

[0046] Adjustment part 400, which can engage with the knob 310 of the adjustable deep incision knife 300;

[0047] The central control unit is used to control the displacement of the carving knife carriage 200 and the rotation of the adjustment unit 400;

[0048] The adjustment unit 400 is used to drive the knob 310 of the adjustable deep cutting blade 300 to rotate according to the control signal of the central control unit, thereby adjusting the cutting depth of the adjustable deep cutting blade 300. The device includes a main frame 100, a cutting blade carriage 200, an adjustable deep cutting blade 300, an adjustment unit 400, and a central control unit. The main frame 100 serves as the mounting base for the cutting machine, supporting and guiding the carriage to move in a predetermined direction. The cutting blade carriage 200 is slidably mounted on the main frame 100, performing the function of moving the cutting head to execute the cutting task.

[0049] The adjustable engraving cutter 300 is mounted on the cutter holder of the engraving cutter carriage 200. Its structure includes a knob 310 for adjusting the length of the extended cutter head. The knob 310 is connected to an adjustment mechanism inside the cutter body. Rotating the knob 310 allows for continuous or stepped adjustment of the cutter head from retracted to extended. The knob 310 has teeth, grooves, or friction surfaces on its exterior that can be engaged by a drive component, facilitating power transmission.

[0050] The adjustment unit 400 is located in a fixed or movable position within the device. It is designed to engage with the knob 310 on the adjustable deep cutting tool 300 after the cutting tool carriage 200 has moved to the designated position. An internal drive mechanism rotates the knob 310, thereby automatically adjusting the cutting depth. This adjustment process requires no manual intervention, is accurate, and has reliable positioning.

[0051] The central control unit, as the core of the machine's control, is responsible for coordinating the movement of the trolley carriage and the execution of the adjustment unit 400. In actual use, the central control unit receives material type or depth setting parameters from user input or task files, determines the required cutter head length, and controls the carving trolley carriage 200 to move to the adjustment position based on the determination result, so that the adjustment unit 400 aligns with the knob 310; then, it controls the adjustment unit 400 to perform a rotation action, turning the knob 310 to the predetermined position to adjust the cutter head extension length.

[0052] After the blade adjustment is completed, the cutting tool carriage 200 returns to the starting position or the designated cutting point to perform subsequent cutting operations. Through this adjustment structure, the equipment can automatically set the optimal cutting depth according to different materials or process requirements, improving cutting consistency and automation, reducing the risk of misoperation, and is suitable for flexible cutting tasks of multiple varieties and specifications of materials.

[0053] It should be understood that the knob 310 is not limited to the traditional manual knob 310. Its meshing structure can also be in the form of gears, rollers, friction rings, etc. The driving form of the adjustment part 400 can also be selected as electric, pneumatic or magnetic coupling mechanism according to the actual situation. Those skilled in the art can make modifications or equivalent substitutions without departing from the spirit of the present invention, all of which are within the protection scope of the present invention.

[0054] In this embodiment, the adjustment unit 400 includes an adjustment motor 410 and an adjustment gear set 420;

[0055] The knob 310 has teeth 311 on its surface that can mesh with the gears of the adjusting gear set 420. The adjusting motor 410 drives the knob 310 of the adjusting gear set 420 to rotate through the adjusting gear set 420. The adjusting motor 410 can be a micro DC motor, a stepper motor, or a servo motor, and its output end is connected to the adjusting gear set 420 to provide controllable rotational power.

[0056] The adjusting gear set 420 includes at least one transmission gear, the output end of which is configured to mesh with the surface of a knob 310 on the adjustable deep-penetrating blade 300. To achieve reliable meshing and efficient force transmission, the outer surface of the knob 310 is provided with a meshing tooth structure 311. These teeth 311 are evenly arranged circumferentially around the knob 310, forming an integrally molded gear ring structure. The meshing gear in the adjusting gear set 420 transmits rotational motion by matching the tooth profile of these teeth 311, thereby driving the knob 310 to rotate.

[0057] The adjusting motor 410 is powered on and started under the command control of the central control unit, driving the adjusting gear set 420 to output rotational power. When the knob 310 meshes with the gear set, the knob 310 rotates accordingly, thereby changing the extension length of the cutter head. The rotation angle can be precisely controlled by step counting or a rotary encoder to achieve the preset cutting depth target.

[0058] Compared to the traditional method of relying on manual rotation of the knob 310, this structure has the advantages of stable transmission, controllable action, and high repeatability. At the same time, since the knob 310 does not need to be equipped with an active drive element, it maintains the miniaturization and low cost characteristics of the engraving module. The overall structure is compact, which is conducive to mass production and maintenance.

[0059] It should be noted that the structure of the adjusting gear set 420 is not limited to a single-stage spur gear transmission; it can also employ multi-stage reduction gears, planetary gear structures, or gear meshing mechanisms with flexible buffers. The gear teeth 311 are not limited to external gears; they can also be internal gear rings or knurled surfaces to achieve friction drive. Without altering the essence of the invention, the above structures are all reasonable equivalent modifications of the invention.

[0060] This implementation also includes an information input unit, which receives cutting tool adjustment information and transmits it to the central control unit. The information input unit is designed to enable the system to automatically identify and respond to different materials, patterns, or cutting processes. This allows the equipment to automatically select the appropriate cutting tool depth based on actual needs before each cutting task begins, reducing errors caused by human judgment and improving the intelligence level of tool adjustment.

[0061] In a preferred embodiment, the information input unit can obtain adjustment information by reading an external data source containing the blade depth setting parameters. For example, this information can originate from preset parameter fields in the cutting file, user input in the host computer system, or be identified by scanning QR codes, barcode labels, etc., attached to the material. The information input unit transmits the obtained blade depth parameters as a target setting value to the central control unit for comparison with the current blade setting, and triggers the blade adjustment operation accordingly.

[0062] The information input unit can be implemented in various forms, including but not limited to a camera recognition module, a wireless data receiving module, an IoT communication interface, a USB flash drive data reading interface, or a data communication port with a host control system. The selection of this module can be flexibly configured according to the application scenario, equipment deployment method, and data source method, exhibiting good system compatibility and scalability.

[0063] By setting up an information input unit, the system can automatically sense task requirements and realize on-demand matching cutter head adjustment logic, further reducing human intervention, improving production efficiency and finished product consistency, and is especially suitable for flexible processing scenarios with multiple varieties, small batches, and frequent material changes.

[0064] It should be noted that the information input unit itself is not limited to a single device, and its function can also be completed collaboratively by multiple devices; the information is not limited to cutter head position data, but may also include material type, thickness parameters, or marking information, etc. All the above variations should be considered as extensions of the present invention.

[0065] In this embodiment, the information input unit is a camera module 500, a wireless information transmission module, or a data transmission port. Specifically, when the information input unit is a camera module 500, the system can obtain material information or cutting depth parameters through visual recognition. For example, by recognizing QR codes, barcodes, or image marks attached to the surface of the material to be processed, the system can extract the required cutting depth and other set data. This method has the advantages of being fast, non-contact, and highly visual, and is especially suitable for semi-automatic or fully automatic cutting platforms that require frequent material changes.

[0066] When the information input unit uses a wireless information transmission module, the device can receive tool adjustment parameter commands from the upper control system, cutting design software, or cloud task platform via communication protocols such as Wi-Fi, Bluetooth, and ZigBee. This mode enables remote tool adjustment and network-linked control, and is suitable for application scenarios integrated with MES systems and smart factory systems, offering excellent scalability and flexible deployment capabilities.

[0067] When the information input unit uses a data transmission port, the device can receive tool depth setting data from a USB flash drive, computer, or other control terminal via wired communication interfaces such as USB, serial port, or Ethernet. This method is suitable for scenarios with high requirements for data transmission stability, and is particularly suitable for offline tool adjustment applications in stand-alone control systems or local area network environments.

[0068] Each of the three input methods has its own advantages and disadvantages. The appropriate solution can be selected according to the usage requirements. Alternatively, it can be designed with multiple modules coexisting, and the central control unit can automatically select the currently available data input channel based on the task source, thereby achieving high overall system compatibility and strong adaptability.

[0069] It should be emphasized that the specific type of the above-mentioned information input unit is not limited to the camera module 500, wireless module or data port, but may also include, but is not limited to, other components with information acquisition and transmission capabilities such as RFID reader, touch screen, voice recognition unit, etc., all of which can be regarded as equivalent replacements of the present invention.

[0070] In this embodiment, the adjustment part 400 is installed on the main frame 100, and the adjustment part 400 is located on the side wall of the main frame 100;

[0071] The engraving tool carriage 200 can be moved to the edge of its travel to engage the knob 310 of the adjustable engraving tool 300 with the adjustment part 400.

[0072] The adjustment unit 400 serves as the drive mechanism for rotating the cutter head knob 310. Its position does not change with the movement of the cutting tool carriage 200, but is permanently fixed on one side of the main structure. This allows the carriage to engage with the adjustment unit 400 simply by moving to the end of its stroke along a set path when it has completed a cutting task or is ready to perform a tool adjustment operation.

[0073] In actual operation, when the central control unit determines that the required depth of cut for the current task is inconsistent with the current cutter head state, it first controls the carving tool carriage 200 to move along the guide rail to the tool adjustment positioning point at the edge of the stroke. Since the adjustment unit 400 is fixedly set at this position, the adjustable deep cutting tool 300 knob 310 on the carving tool carriage 200 can precisely engage with the meshing output components such as gears and rollers in the adjustment unit 400 after being positioned, thus establishing the transmission linkage relationship.

[0074] Subsequently, the adjustment motor 410 within the central control unit's adjustment section 400 is activated, driving the knob 310 to rotate via a gear set, thereby achieving precise adjustment of the cutter head depth. After the cutter adjustment is completed, the carriage returns to its original starting position and resumes the regular cutting process.

[0075] This fixed adjustment structure boasts advantages such as simple structure, convenient installation, and stable transmission, making it particularly suitable for equipment platforms with limited space and low mechanical load requirements. By designing the adjustment device as a fixed unit on the frame, problems such as unstable connection, line fatigue, and motor response interference caused by frequent movement of the adjustment section 400 with the trolley are avoided, thus helping to improve the reliability and lifespan of the entire machine.

[0076] It should be noted that the position of the adjustment part 400 installed on the side wall of the frame can be flexibly selected according to the equipment layout, such as being located at the end of the stroke on the left or right side, as long as it ensures that the carving knife carriage 200 can accurately stop and engage. All of the above layout methods should be considered feasible variations of the present invention without changing the functional principle.

[0077] In another embodiment, the adjustment part 400 is mounted on the carving knife carriage 200, and the adjustment part 400 moves synchronously with the carving knife carriage 200.

[0078] Unlike the aforementioned structure where the adjustment unit 400 is fixedly installed on the side wall of the main frame 100, this embodiment integrates the adjustment unit 400 into the body of the carriage or its proximal region, enabling it to move synchronously during cutting operations and blade adjustment operations. The adjustment unit 400 includes an adjustment motor 410 and an adjustment gear set 420. The motor communicates with the central control unit through control lines on the carriage, and the gear output end is always spatially adjacent to or directly engaged with the knob 310 of the adjustable deep cutting blade 300.

[0079] During operation, when the central control unit detects a discrepancy between the current depth of cut and the target depth, it is not necessary to move the carriage to the adjustment position. Instead, it can directly control the adjustment motor 410 on the carriage to start, driving the gear set to rotate and thus actuating the knob 310 to adjust the cutter head extension length. Since the adjustment unit 400 is always in a fixed relative position with the cutter head, there is no need for the carriage to engage with an external adjustment structure. Therefore, the entire tool adjustment process can be completed at any position, making it particularly suitable for automatic depth of cut adjustment during movement or for immediate tool adjustment before special trajectory operations.

[0080] This structure boasts high integration and flexibility, avoiding the additional movement paths and positioning processes introduced by tool adjustments, thus significantly improving system response speed and continuous operation capability. Furthermore, this approach simplifies the structural layout requirements for equipment size, making it more suitable for compact or high-performance cutting platforms with multiple carriages operating in parallel.

[0081] Of course, to ensure the stable operation of the adjustment unit 400, a dedicated power supply and communication line must be installed inside the carriage, and corresponding vibration reduction and anti-interference measures must be taken to ensure the long-term reliability of the motor and control module. To improve machining accuracy, encoders, current detectors, or mechanical limit devices can also be used to achieve real-time feedback on the actual value of the rotation angle of the knob 310 or the depth of cut.

[0082] It should be noted that the structure in which the adjustment unit 400 and the engraving knife carriage 200 move synchronously can adopt a modular assembly form, which facilitates later replacement and maintenance. It can also be integrated with functional components such as laser positioning and pressure detection to further expand the functional boundaries. All of the above-mentioned modifications should be considered as equivalent embodiments of the present invention.

[0083] An automatic blade adjustment method for a cutting machine, applied to the aforementioned automatic blade adjustment device for a cutting machine, includes the following steps:

[0084] Set the initial setting L of the adjustable deep cutting knife 300 to 0;

[0085] Obtain the cutting file and extract the target data N for the depth of cut;

[0086] Compare the gear setting data L and the blade depth gear setting data N. If L is not equal to N, the knob 310 of the adjustable deep cutting blade 300 is rotated by the adjustment unit 400 to adjust the blade depth. If L is equal to N, the cutting task is executed.

[0087] First, during the power-on or initialization phase, the system sets the current gear value of the adjustable deep cutting tool 300 to an initial value of L=0, which serves as the reference state for the tool adjustment control process. This initial value can be set via a program or by the central control unit controlling the adjustment unit 400 to return the knob 310 to zero to confirm the starting position.

[0088] Subsequently, when the user initiates a cutting task or the system loads a cutting file, the system extracts the target depth-of-blade data N corresponding to the material or pattern from the cutting task. This data can be directly written into the task file by the cutting design software, or it can be obtained through information input units such as barcode scanners, USB drives, or remote communication.

[0089] After receiving the target gear data N, the central control unit first compares it with the current gear data L. If N and L match, it means that the current cutter head extension depth has matched the requirements of this task, and the system can skip the tool adjustment step and directly enter the cutting process, improving efficiency.

[0090] If N and L are inconsistent, the system determines that the current blade extension length does not meet the target requirement and automatically initiates the blade adjustment operation. At this time, the central control unit controls the blade carriage 200 to form an engagement relationship with the adjustment unit 400. If a fixed adjustment structure is used, the carriage needs to be moved to the engagement position. If a follow-up structure is used, it can be performed in place, and the adjustment unit 400 is started, driving the knob 310 to rotate to the target position, thereby adjusting the blade extension length to the level required for the current task.

[0091] After the tool adjustment operation is completed, the system updates the current tool head setting L to the new value N, which serves as the comparison benchmark for the next task, thus completing the tool adjustment preparation.

[0092] Using the above methods, the system can achieve rapid response and accurate switching in multi-task, heterogeneous material, or multi-layer cutting processes without manual adjustment, reducing errors and ensuring cutting quality.

[0093] It should be noted that the initialization method of the current gear L can be flexibly set according to the actual system configuration. It can be achieved through a physical zeroing operation or by electronically recording the final gear data after the last task was completed. Both of these methods should be considered as equivalent embodiments of the present invention.

[0094] In this embodiment, the adjustment of the cutting depth by driving the knob 310 of the adjustable deep cutting tool 300 to rotate via the adjustment unit 400 specifically includes the following steps:

[0095] The adjustment unit 400 reverses the drive of the adjustable deep-penetrating knife 300, and the knob 310 is rotated to the mechanical limit to return the adjustable deep-penetrating knife 300 to the 0 position.

[0096] The adjustment unit 400 rotates clockwise again to adjust the setting of the adjustable deep cutting tool 300, so that the setting data L equals the target setting data N. The process of adjusting the cutting depth by driving the knob 310 of the adjustable deep cutting tool 300 through the adjustment unit 400 preferably employs a two-way control strategy of "zeroing first and then rotating clockwise" to improve the accuracy and repeatability of the cutting action and avoid inaccurate tool adjustment caused by accumulated errors, initial position offset, or the knob 310 spinning freely.

[0097] Specifically, the tool adjustment process includes the following steps:

[0098] First, the central control unit controls the drive motor of the adjustment unit 400 to rotate in the opposite direction, so that the knob 310 rotates in the opposite direction until the knob 310 is rotated to the mechanical limit position. At this time, the adjustable deep cutting blade 300 is reset to 0. This mechanical limit structure can be set inside the knob 310 or in the blade body. It is usually a physical stop structure that can provide obvious damping feedback or current detection signal when the knob 310 is rotated to the preset zero position for the central control unit to recognize.

[0099] This zeroing operation has two important functions: first, it ensures that each tool adjustment action starts from a unified reference point, avoiding deviations caused by residual results from the previous adjustment; second, it provides a clear starting point for subsequent positive adjustment actions, facilitating precise control in units of "rotation steps" or "rotation angles".

[0100] After zeroing is completed, the adjustment unit 400 stops reversing and then switches to forward rotation mode. Based on the target depth data N, the control knob 310 is rotated a specified angle or number of steps in the forward direction, thereby adjusting the adjustable depth cutter 300 to the extension length corresponding to the target setting N. The rotation control method can employ various forms such as timed drive, stepper control, and encoder feedback to achieve the required positioning accuracy.

[0101] After adjustment, the central control unit updates the current gear value L to the target gear value N, which serves as the reference benchmark for the system's next judgment. The adjustment process is completed automatically without manual intervention, the overall execution logic is stable, and it can adapt to different cutting tasks with multiple depth-of-cut settings.

[0102] The above-mentioned zeroing-positive adjustment bidirectional control process not only ensures the repeatability and accuracy of each cutter head adjustment, but also avoids the problem of reduced cutting quality caused by cumulative deviation. It is especially suitable for multi-layer and multi-material composite machining tasks that require high tool depth positioning accuracy.

[0103] It should be noted that the above-mentioned "mechanical limit zeroing" can also be replaced by photoelectric detection, Hall effect sensing, encoder zero-position marking, etc., depending on the actual structural form. As long as the zeroing state of knob 310 can be reliably identified and used as the starting point for positive adjustment, it is an equivalent variation within the scope of protection of this invention.

[0104] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic blade adjusting device for a cutting machine, characterized in that, include: Main framework (100); A carving knife carriage (200) is slidably mounted on the main frame (100); An adjustable engraving tool (300) is mounted on the tool holder of an engraving tool carriage (200), and the adjustable engraving tool (300) is provided with a knob (310) for adjusting the extension length of the tool head. An adjustment part (400) is available for engagement with a knob (310) of an adjustable deep-penetrating knife (300); A central control unit is used to control the displacement of the carving knife carriage (200) and the rotation of the adjustment unit (400); The adjustment unit (400) is used to drive the knob (310) of the adjustable deep cutting knife (300) to rotate according to the control signal of the central control unit, thereby adjusting the cutting depth of the adjustable deep cutting knife (300).

2. The automatic blade adjusting device for a cutting machine according to claim 1, characterized in that, The adjustment unit (400) includes an adjustment motor (410) and an adjustment gear set (420). The surface of the knob (310) is provided with gear teeth (311) that can mesh with the gears of the adjusting gear set (420). The adjusting motor (410) drives the knob (310) of the adjusting gear set (420) to rotate through the adjusting gear set (420).

3. The automatic blade adjusting device for a cutting machine according to claim 1, characterized in that, It also includes an information input unit, which is used to receive cutting tool adjustment information and transmit it to the central control unit.

4. The automatic blade adjusting device for a cutting machine according to claim 3, characterized in that, The information input unit is a camera module (500), a wireless information transmission module, or a data transmission port.

5. The automatic blade adjusting device for a cutting machine according to claim 1, characterized in that, The adjustment part (400) is mounted on the main frame (100), and the adjustment part (400) is located on the side wall of the main frame (100); The carving knife carriage (200) can be moved to the edge of the travel to engage the knob (310) of the adjustable carving knife (300) with the adjustment part (400).

6. The automatic blade adjusting device for a cutting machine according to claim 1, characterized in that, The adjustment part (400) is mounted on the carving knife carriage (200), and the adjustment part (400) moves synchronously with the carving knife carriage (200).

7. An automatic blade adjustment method for a cutting machine, applied to the automatic blade adjustment device for a cutting machine as described in any one of claims 1-6, characterized in that, Includes the following steps: Assign the initial setting L of the adjustable deep cutting knife (300) to 0; Obtain the cutting file and extract the target data N for the depth of cut; Compare the gear setting data L and the blade depth gear setting data N. If L is not equal to N, the knob (310) of the adjustable deep cutting blade (300) is driven to rotate by the adjustment unit (400) to adjust the blade depth. If L is equal to N, the cutting task is performed.

8. The automatic blade adjustment method for a cutting machine according to claim 7, characterized in that, The method of adjusting the incision depth by rotating the knob (310) of the adjustable incision cutter (300) via the adjustment unit (400) specifically includes the following steps: The adjustment unit (400) reverses the drive of the adjustable deep incision knife (300) knob (310) to rotate to the mechanical limit so that the adjustable deep incision knife (300) returns to the 0 position; The adjustment unit (400) rotates forward again to adjust the gear of the adjustable deep cutting knife (300) so that the gear data L is equal to the gear target data N.

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