Double-blade intelligent constant-temperature multifunctional art knife

Abstract

The application discloses a double-blade intelligent constant-temperature multifunctional art knife, which comprises a handheld body, a blade head clamping mechanism, a constant-temperature heating module, a temperature detection module, a laser positioning module, a distance measuring module, an angle detection module, a main control module, a display module and a power supply module. The blade head clamping mechanism is arranged at the front end of the body and adopts a buckle type quick-release lock clamping structure, can selectively clamp a general art knife blade or a groove cutting blade special for a belt, and supports tool-free manual disassembly. The constant-temperature heating module is embedded in the blade head, uniformly heats the blade base through a PTC ceramic component, and can realize constant-temperature control and double temperature measurement in cooperation with a bonded NTC temperature sensor. The body can be selected to have a one-word straight bar or a gun type holding shape, integrates the functions of heating, temperature measurement, positioning, distance measurement and angle measurement, solves the problems of scattered traditional tool operation, difficult low-temperature cutting, precision experience dependence and limited endurance, and significantly improves the efficiency and standardization level of industrial belt maintenance.

Description

Technical Field

[0001] This invention relates to the field of handheld power tool technology, specifically to a dual-blade intelligent constant-temperature multifunctional utility knife that integrates constant-temperature heating, contact temperature measurement, laser positioning, laser ranging, and angle detection. It is suitable for industrial conveyor belt repair, precision cutting operations, and various material processing scenarios. Background Technology

[0002] In fields such as industrial conveyor belt repair, leather processing, and foam material cutting, electrothermal cutting tools are widely used because they can effectively soften materials and reduce cutting resistance. Existing technologies, such as Chinese patent application CN202311604696.4 (title: A Temperature-Adjustable Electrothermal Utility Knife), disclose a temperature-adjustable electrothermal utility knife, which includes a handle and a blade. The handle contains a heating control device consisting of a heating wire, a switch, a button, a display screen, a chip, and a battery. The heating temperature is set via the button, and the heating wire heats the blade according to the set temperature. The blade is connected to the handle via a fixing screw, and the heating wire is wound around the fixing screw, transferring heat to the blade through the screw. The display screen shows two parameters: the current blade temperature and the set blade temperature. However, these tools still have significant limitations in practical use: on the one hand, their blades are fixed with screws and only compatible with a single blade specification, making blade replacement cumbersome and incompatible when switching between different operating modes such as flat cutting and grooving; on the other hand, their heating method relies on heating wires wrapped around screws for heat conduction, resulting in a long heat transfer path, low efficiency, and a lack of monitoring of the temperature of the workpiece, making it difficult to meet the stringent requirements for temperature accuracy and cutting angle in industrial belt maintenance, thus limiting the maintenance pass rate. Summary of the Invention

[0003] The present invention aims to solve the above-mentioned technical problems by providing a dual-blade intelligent constant temperature multi-functional utility knife.

[0004] To solve the above-mentioned technical problems, the technical solution provided by the present invention is as follows: A dual-blade intelligent constant temperature multifunctional utility knife, comprising a handheld body, a blade clamping mechanism, a constant temperature heating module, a temperature detection module, a laser positioning module, a distance measuring module, an angle detection module, a main control module, a display module, and a power supply module.

[0005] The handheld body serves as the overall support structure, providing installation space and gripping points for each functional module, facilitating one-handed or two-handed operation and improving operational flexibility.

[0006] The blade clamping mechanism is located at the front of the handheld unit and uses a snap-on quick-release clamping structure, which can selectively clamp and fix standard utility knife blades or belt-specific grooving blades. This quick-release design allows for rapid switching between different types of cutting tasks, reducing downtime.

[0007] The constant temperature heating module is embedded inside the blade clamping mechanism and is thermally bonded to the blade base, which can heat the blade evenly and improve the smoothness and cut quality when cutting tough materials.

[0008] The temperature detection module is fitted inside the cutter head clamping mechanism to collect the working temperature of the blade and the surface temperature of the belt in a contact manner, thereby achieving dual temperature monitoring and preventing overheating damage to the material.

[0009] The laser positioning module is installed on the side of the cutter head and is used to project a cutting reference line to improve the straightness and accuracy of the cutting path.

[0010] The ranging module is integrated into the tail of the handheld device for quickly measuring cut length, belt circumference, and installation spacing, reducing reliance on external measuring tools.

[0011] The angle detection module is built into the cavity of the handheld device to monitor the cutting tilt angle, belt bevel angle and grooving angle in real time to ensure the geometric accuracy of the processing.

[0012] The main control module, as the control core of the system, is electrically connected to the display module, power supply module, and various functional modules, and is responsible for data acquisition, processing, and issuing control commands.

[0013] The display module is exposed on the front of the machine body and is used to visually display the set temperature, real-time temperature, cutting angle, distance measurement data, power consumption and working mode, so that operators can intuitively grasp the working status.

[0014] The power supply module features a detachable, open battery compartment structure, compatible with lithium battery cells of different specifications, and supports both wired and wireless charging methods to ensure continuous operation over extended periods.

[0015] Furthermore, the constant temperature heating module adopts PTC ceramic heating components, with a temperature control adjustment range of 20℃-500℃. It is equipped with a PID closed-loop intelligent temperature control circuit and features multiple safety protection structures such as over-temperature power-off, no-load overheat protection, and automatic sleep mode, thereby improving heating stability and safety.

[0016] Furthermore, the temperature detection module is a high-precision NTC contact temperature sensor with a temperature measurement range of -50℃ to 600℃ and an accuracy of ±0.3℃. By closely fitting with the blade base, it achieves dual temperature measurement of the contact surface between the blade and the belt, thereby improving the accuracy of temperature control.

[0017] Furthermore, the blade clamping mechanism includes a base plate, a limiting card, and a protective plate. The blade can be quickly fixed and removed through a snap-fit ​​structure. The limiting card is fixed to the base plate with screws to ensure a firm clamping without damaging the blade, thus improving durability and safety.

[0018] Furthermore, the angle detection module is a three-axis high-precision tilt sensor unit with a measurement range of 0°-360° full coverage. It can display the cutting tilt angle, belt bevel angle and grooving angle in real time, adapting to the multi-angle cutting needs under complex working conditions.

[0019] Furthermore, the ranging module is a miniature high-precision laser ranging sensor with a range of 0-150m and a ranging error of ≤±1mm. It also has built-in algorithms for calculating belt circumference, cutting length, and installation spacing, which improves measurement efficiency and accuracy.

[0020] Furthermore, the power supply module is compatible with both 18650 and 26650 lithium battery cells, supporting free interchange and switching of cells. It also supports both Type-C wired fast charging and wireless magnetic charging modes, significantly improving the tool's battery life and charging convenience.

[0021] Furthermore, it also includes a detachable heat-insulating protective cover that can be attached to the blade head, and the handheld body is made of non-slip and wear-resistant engineering plastic with partial soft rubber wrapping structure, with an overall protection level of IP43, ensuring the safety and comfort of the operator.

[0022] Furthermore, the handheld device can be configured as a straight strip body and form a gun-like structure with an independent handle to adapt to different gripping habits and working scenarios, thereby improving operational stability.

[0023] Furthermore, the display module is an OLED high-definition display screen, which can simultaneously display the set temperature, real-time temperature measurement data, cutting angle, distance measurement data, equipment power and working mode. The machine body is equipped with physical function buttons, and the operation logic covers power switch, temperature adjustment, laser start / stop and mode switching, improving the human-computer interaction experience.

[0024] The advantages of this invention compared to the prior art are: 1. The invention features a unique dual-specification blade clamping structure that supports manual, second-level switching between general-purpose standard utility knife blades and belt-specific irregular-shaped grooving blades, completely eliminating the limitations of traditional tools that only support a single blade type. Combined with the embedded PTC constant temperature heating module and the large-area heat conduction of the blade base, along with the PID closed-loop temperature control algorithm, it achieves precise temperature control from 20℃ to 500℃, effectively solving the problems of high cutting resistance, burrs, and springback deformation caused by material hardening in low-temperature environments.

[0025] By synchronously monitoring the temperature of the blade and workpiece using a high-precision NTC contact temperature sensor, and integrating laser alignment, 0°-360° omnidirectional electronic angle measurement, and high-precision laser ranging functions, a three-in-one digital operation system of "temperature-size-angle" is constructed, which significantly reduces the reliance on operator experience and ensures the standardization of maintenance processes.

[0026] The device adopts an open and detachable battery compartment design, which is compatible with the interchangeability of 18650 and 26650 dual-specification battery cells and dual-mode charging. It breaks through the bottleneck of traditional built-in batteries being unable to extend battery life and achieves unlimited battery life in outdoor scenarios without power.

[0027] The machine features IP43 protection, multiple safety power-off protections, and a dual-mode body design, combining excellent portability, adaptability to complex working conditions, and ergonomic grip experience, significantly improving the efficiency and safety of industrial belt maintenance. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 .

[0029] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 .

[0030] Figure 3 This is a schematic diagram of a gun-style structure with a handle.

[0031] Figure 4 This is a three-dimensional structural diagram of the cutter head clamping mechanism.

[0032] Figure 5 This is an internal schematic diagram of the internal structure of the cutter head clamping mechanism.

[0033] As shown in the figure: 100, machine body; 200, blade clamping mechanism; 201, base plate; 20, limit card; 203, card slot; 204, protective plate; 210, blade; 300, constant temperature heating module; 400, temperature detection module; 500, laser positioning module; 600, ranging module; 700, display module; 800, power supply module; 900, handle. Detailed Implementation

[0034] like Figures 1 to 5 As shown, this embodiment of the invention provides a dual-blade intelligent constant temperature multi-functional utility knife, including a handheld body 100. The handheld body 100 serves as the main support, and its outer shell is made of non-slip and wear-resistant engineering plastic, with a soft rubber layer covering the grip area to improve grip comfort and reduce hand fatigue during operation.

[0035] A blade clamping mechanism 200 is provided at the front end of the handheld device 100. The blade clamping mechanism 200 includes a base plate 201 for mounting the blade 210. An F-shaped limiting card 202 is rotatably mounted on the top of the base plate 201. The blade 210 has multiple slots 203, and the limiting card 202 can be inserted into the slots 203 to fix the blade 210. The limiting card 202 is fixed to the base plate 201 with screws to ensure clamping stability. The blade clamping mechanism 200 also includes a protective plate 204, which is mounted on the base plate 201 to cover the non-working parts of the blade 210 to prevent accidental contact and injury.

[0036] The constant temperature heating module 300 is located inside the base plate 201 and is thermally bonded to the blade 210 substrate. It heats the blade via a PTC ceramic heating element, with a temperature control range of 20℃-500℃. The constant temperature heating module 300 is equipped with a PID closed-loop intelligent temperature control circuit, which can dynamically adjust the power during the heating process to achieve stable temperature control.

[0037] The temperature detection module 400 is a high-precision NTC contact temperature sensor, fitted inside the protective sheet 204. It is used for contact-type acquisition of the blade's operating temperature and the belt surface temperature, with a temperature range of -50℃ to 600℃ and an accuracy of ±0.3℃. The temperature detection module 400 is electrically connected to the main control module, which adjusts the output power of the constant temperature heating module 300 based on the real-time temperature data.

[0038] The laser positioning module 500 is installed on the side of the cutter head and can project a red straight line reference in the cutting direction to help the operator maintain the straightness of the cutting path.

[0039] The ranging module 600 is integrated into the tail of the handheld device 100. It is a miniature high-precision laser ranging sensor with a range of 0-150m and an error of ≤±1mm. The ranging module 600 has built-in algorithms for calculating belt circumference, cutting length, and installation spacing. The measurement results can be directly displayed on the display module 700.

[0040] The angle detection module is a three-axis high-precision tilt sensor unit, built into the cavity of the handheld device body 100. It has a measurement range of 0°-360° and can detect the cutting tilt angle, belt bevel angle and grooving angle in real time, and transmit the data to the main control module.

[0041] The main control module, as the core of the system, is electrically connected to the constant temperature heating module 300, temperature detection module 400, laser positioning module 500, ranging module 600, display module 700 and power supply module 800, and is responsible for data processing, logic control and command issuance.

[0042] The display module 700 is an OLED high-definition display screen exposed on the front of the handheld device 100. It can simultaneously display the set temperature, real-time temperature, cutting angle, distance measurement data, device battery level, and working mode. The device is equipped with physical function buttons, and the operation logic includes power switch, temperature adjustment, laser start / stop, and mode switching.

[0043] The power supply module 800 adopts a detachable open battery compartment structure, which is compatible with both 18650 and 26650 lithium battery cells and supports free interchange and switching of cell specifications. It also supports dual modes of Type-C wired fast charging and wireless magnetic charging to meet the battery life requirements of different operating scenarios.

[0044] In this embodiment, specifically: the handheld device 100 can be configured as a straight strip, or it can be combined with the handle 900 to form a gun-type structure. The gun-type structure is more suitable for long-term continuous operation and provides better control stability.

[0045] In this embodiment, specifically, the quick-release design of the blade clamping mechanism 200 allows for blade replacement without tools. Operators only need to rotate the limiting card 202 to install or remove the blade 210, significantly improving work efficiency.

[0046] In this embodiment, specifically: when the PID closed-loop temperature control circuit of the constant temperature heating module 300 detects that the real-time temperature fed back by the temperature detection module 400 deviates from the set value, it automatically adjusts the heating power to ensure that the temperature fluctuation does not exceed ±2℃.

[0047] In this embodiment, specifically: the brightness of the projected light from the laser positioning module 500 is adjustable to adapt to the visibility requirements under different lighting conditions.

[0048] In this embodiment, specifically: the measurement algorithm of the ranging module 600 supports switching between continuous measurement and single measurement modes to meet the requirements of different measurement accuracy.

[0049] In this embodiment, specifically: when the angle detection module detects that the cutting angle exceeds the preset safety threshold, it can issue a warning through the display module 700 to prevent cutting deviation caused by improper operation.

[0050] In this embodiment, specifically: the power supply module 800 automatically reduces the heating power and shuts down non-core functions when the power is low, in order to extend the remaining working time.

[0051] In operation, according to the embodiments of the present invention: the operator selects either a straight or gun-type machine body structure based on the work requirements, installs the corresponding type of blade 210, and sets the target temperature through the display module 700. After the constant temperature heating module 300 is activated, the temperature detection module 400 monitors the blade temperature in real time and feeds it back to the main control module. The main control module adjusts the heating power through a PID algorithm to stabilize the blade at the set temperature. During the cutting process, the laser positioning module 500 projects a reference line, the angle detection module monitors the cutting angle in real time, and the distance measuring module 600 measures the cutting length. All data are simultaneously displayed on the display module 700. After the work is completed, the power is turned off, the blade 210 is removed, and the tools are stored.

[0052] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A dual-blade intelligent constant-temperature multi-functional utility knife, characterized in that: include: Handheld camera body (100); A blade clamping mechanism (200) is provided at the front end of the handheld body (100). The blade clamping mechanism (200) is a snap-on quick-release locking structure and is configured to selectively clamp and fix a standard blade (210). The blade is a utility knife blade or a belt-specific grooving blade. The constant temperature heating module (300) is embedded in the blade clamping mechanism (200) and is thermally bonded to the blade base; A temperature detection module (400) is fitted inside the blade clamping mechanism (200) for contact-type acquisition of the blade working temperature and belt surface temperature; A laser positioning module (500) is installed on the side of the cutter head and is used to project a cutting reference line. A ranging module (600) is integrated at the rear of the handheld device (100); An angle detection module is built into the cavity of the handheld device body (100); The main control module, and the display module (700) and power supply module (800) electrically connected to the main control module. The display module (700) is exposed on the front of the machine body and is used to visually display the operation parameters.

2. The dual-blade intelligent constant-temperature multifunctional utility knife according to claim 1, characterized in that, The blade clamping mechanism (200) includes a blade base (201) for mounting a blade (210). An F-shaped limiting card (202) is rotatably provided above the blade base (201). The blade (210) is provided with multiple slots (203). The limiting card (202) is located in the slots (203) to fix the blade (210). The limiting card (202) and the blade base (201) are fixed together by screws. It also includes a protective plate (204) for mounting on the blade base (201); The constant temperature heating module (300) is installed inside the base (201), and the temperature detection module (400) is installed on the protective sheet (204).

3. The dual-blade intelligent constant-temperature multifunctional utility knife according to claim 1, characterized in that, The constant temperature heating module (300) adopts a PTC ceramic heating component, with a temperature control adjustment range of 20℃-500℃. It is equipped with a PID closed-loop intelligent temperature control circuit and features multiple safety protection structures, including over-temperature power-off, no-load overheat protection, and automatic sleep mode during long-term idle periods.

4. The dual-blade intelligent constant-temperature multifunctional utility knife according to claim 1, characterized in that, The temperature detection module (400) is a high-precision NTC contact temperature sensor with a temperature measurement range of -50℃ to 600℃ and a temperature measurement accuracy of ±0.3℃. The sensor is closely fitted to the blade base (201) to achieve dual temperature measurement of the contact surface between the blade and the belt.

5. The dual-blade intelligent constant-temperature multifunctional utility knife according to claim 1, characterized in that, The angle detection module is a three-axis high-precision tilt sensor unit with a measurement range of 0°-360° full coverage. It is configured to display the cutting tilt angle, belt bevel angle, and grooving angle in real time.

6. The dual-blade intelligent constant-temperature multifunctional utility knife according to claim 1, characterized in that, The ranging module (600) is a miniature high-precision laser ranging sensor with a range of 0-150m and a ranging error of ≤±1mm. It also has built-in algorithms for calculating belt circumference, cutting length and installation spacing.

7. The dual-blade intelligent constant-temperature multifunctional utility knife according to claim 1, characterized in that, The power supply module (800) adopts a detachable open battery compartment structure, which is compatible with both 18650 and 26650 lithium battery cells and supports free interchange and switching of cell specifications; it also supports dual modes of Type-C wired fast charging and wireless magnetic charging.

8. A dual-blade intelligent constant-temperature multifunctional utility knife according to claim 1, characterized in that, It also includes a detachable heat-insulating protective cover that can be attached to the blade head; the handheld body (100) is made of non-slip and wear-resistant engineering plastic with a partial soft rubber wrapping structure, and the overall protection level reaches IP43.

9. A dual-blade intelligent constant-temperature multifunctional utility knife according to claim 1, characterized in that, It also includes a handle (900), the handheld body (100) is a straight strip body, which together with the handle (900) forms a gun-like structure.

10. A dual-blade intelligent constant-temperature multifunctional utility knife according to claim 1, characterized in that, The display module (700) is an OLED high-definition display screen, configured to synchronously display the set temperature, real-time temperature measurement data, cutting angle, distance measurement data, equipment power and working mode; the body is equipped with physical function buttons, and the operation logic includes power switch, temperature adjustment, laser start / stop and mode switching.

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