A vibrating knife cutting mechanism of a flexible material numerical control cutting machine

Abstract

This invention relates to the field of cutting equipment, specifically a vibrating blade cutting mechanism for a flexible material CNC cutting machine. It includes a worktable, on which a vibrating blade is mounted via a track assembly. The track assembly is equipped with a scraping unit for scraping the vibrating blade and a cooling unit for cooling the vibrating blade. This invention uses a moving component to drive an air-blowing plate closer to or further away from the vibrating blade. Utilizing the material's obstruction of the oblique holes during cutting, the cooling airflow primarily blows from the through-holes towards the back of the vibrating blade during cutting. When the blade is lifted, the moving component moves the air-blowing plate closer to the vibrating blade to block the through-holes, ensuring that the cooling airflow mainly blows from the oblique holes towards the blade side, achieving real-time cooling of the vibrating blade. Simultaneously, the connecting component and two scraping components periodically clamp and scrape the vibrating blade, promptly removing debris adhering to the blade body, significantly improving cutting quality and extending blade life.

Description

Technical Field

[0001] This invention relates to the field of cutting equipment, specifically a vibrating knife cutting mechanism for a flexible material CNC cutting machine. Background Technology

[0002] A CNC vibrating knife cutting machine is a CNC machining equipment that uses a high-frequency vibrating knife head to physically cut materials. It is widely used in the precision cutting of various flexible and semi-rigid materials. Typical applicable materials include leather (genuine leather, PU leather, artificial leather), textile fabrics (cotton, chemical fiber, non-woven fabric), soft rubber, silicone sheets, and foam materials (sponge, pearl cotton, EVA foam), etc.

[0003] The core actuator of a CNC vibratory knife cutting machine is the vibratory cutter head. The basic structure of an existing vibratory cutter head typically includes a movable base, a cutter holder, a vibration drive mechanism, and a blade. The vibration drive mechanism drives the cutter holder and the blade mounted on it to achieve high-frequency up-and-down vibration, causing the blade to vibrate up and down at a frequency of 10,000 to 20,000 times per minute or even higher, forming an intermittent impact cutting force. During cutting, the CNC system controls the movement of the cutter head on the X, Y, and Z axes according to the preset CAD cutting path, while the vibration mechanism drives the blade to vibrate at high speed to cut the material placed on the worktable.

[0004] However, when a CNC vibratory knife cutting machine is used to cut low-melting-point, high-foaming materials such as EVA foam, the temperature of the blade increases significantly due to the high melting point of EVA foam. When the vibrating blade rubs violently against the material at a high frequency of 10,000 to 20,000 times per minute, the heat generated by the friction causes the blade temperature to rise significantly.

[0005] When the blade temperature reaches the melting temperature of the EVA material, the material melts on the blade surface and adheres to the blade edge and the back of the blade, forming a chip layer. As cutting continues, the adhesion layer thickens, which increases the cutting resistance of the blade, leading to a deterioration in cut quality and rough edges. On the other hand, it intensifies frictional heat generation, creating a vicious cycle that ultimately leads to premature wear or even breakage of the blade.

[0006] Currently, conventional vibratory knife cutting mechanisms lack effective cooling methods for the blades and timely and reliable chip removal measures, making it difficult to maintain stable cutting quality when continuously cutting low-melting-point materials for extended periods. Therefore, there is an urgent need for a new type of vibratory knife cutting mechanism that can effectively suppress blade heating and promptly remove adhering substances from the blade surface. Summary of the Invention

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a vibrating knife cutting mechanism for a flexible material CNC cutting machine, including a worktable, a vibrating knife being arranged on the worktable via a track assembly, a scraping unit for scraping the vibrating knife and a cooling unit for cooling the vibrating knife being arranged on the track assembly.

[0008] The cooling unit includes an air blowing plate mounted on the track assembly via a movable component. The air blowing plate has a set of through holes on the side facing the vibrating knife, and a set of oblique holes facing the side of the vibrating knife are respectively opened on both sides of the air blowing plate.

[0009] During cutting, the material blocks the oblique hole, causing the airflow to mainly blow directly from the through hole to the back of the vibrating knife; when lifting the knife, the moving component drives the air blowing plate to approach the vibrating knife, which blocks the through hole, and at this time the airflow mainly blows out from the oblique hole to the side of the vibrating knife.

[0010] The scraping unit includes two scraping components mounted on the track assembly via a connecting assembly. When the blade is lifted, the two scraping components clamp the two sides of the vibrating blade and move the vibrating blade up and down to scrape off the debris on the vibrating blade.

[0011] Preferably, an L-shaped arm is fixedly installed on the track assembly, a heat insulation plate is vertically slidably connected to the L-shaped arm, and a clamping plate is fixedly installed on the heat insulation plate.

[0012] Preferably, a second clamping plate is connected to the first clamping plate by screws, and the first clamping plate and the second clamping plate are clamped on the handle of the vibrating knife. A cooling plate is fixedly connected to the first clamping plate.

[0013] Preferably, the moving component includes a lifting block that is slidably connected to the track assembly, a moving arm that slides horizontally on the lifting block, and the moving arm that is fixedly connected to the air blowing plate.

[0014] Preferably, both the movable arm and the air blowing plate are hollow structures, the movable arm is connected to the air blowing plate, and the upper end of the movable arm is connected to the air supply equipment.

[0015] Preferably, the track assembly is provided with a lead screw structure for driving the lifting block, and the lifting block is provided with an electric cylinder for driving the moving arm.

[0016] Preferably, the connecting assembly includes a connecting arm that slides horizontally on the track assembly, with the lower side of the connecting arm slidably connected to two scraping elements.

[0017] Preferably, an electric cylinder two is fixedly installed on the connecting arm, and the telescopic section of the electric cylinder two is fixedly connected to the track assembly.

[0018] Preferably, an electric cylinder three is fixedly installed on the rear side of the rear scraper, and the telescopic section of the electric cylinder three is fixedly connected to another scraper.

[0019] Preferably, the scraping component consists of a rigid shell and a flexible scraper, with the flexible scrapers on the two scraping components arranged alternately in an alternating manner.

[0020] The beneficial effects of this invention are as follows: First, this invention uses a moving component to drive the air-blowing plate closer to or further away from the vibrating blade. Utilizing the material's obstruction of the oblique hole during cutting, the cooling airflow is primarily blown from the through-hole towards the back of the vibrating blade during cutting. When the blade is lifted, the moving component drives the air-blowing plate closer to the vibrating blade to block the through-hole, allowing the cooling airflow to primarily blow from the oblique hole towards the blade side, thus achieving real-time cooling of the vibrating blade. Simultaneously, the connecting component and two scraping parts can periodically clamp and scrape the vibrating blade, promptly removing debris adhering to the blade body. The synergistic effect of cooling and chip removal effectively suppresses blade temperature rise and chip accumulation, significantly improving cutting quality and extending blade life.

[0021] Second, this invention uses clamping plates one and two to clamp and lock the blade onto the handle of the vibrating knife, and uses cooling plates to actively cool clamping plates one and two. Through heat conduction, the heat generated by the vibrating knife is quickly absorbed, realizing real-time contact conduction cooling of the blade. This suppresses the temperature rise of the blade from the heat source end and further reduces the risk of material melting and sticking to the blade.

[0022] Third, this invention uses a screw structure to drive the lifting block to move up and down, and an electric cylinder to drive the moving arm to slide horizontally, so that the air blowing plate extends into the material cut during cutting. When the blade is lifted, the air blowing plate is driven to approach the vibrating blade, which realizes the tracking of the vibrating blade and efficient cooling throughout the cutting process, avoiding overheating.

[0023] Fourth, this invention uses an electric cylinder to drive two scraping components that abut against both sides of the vibrating knife. The scraping components consist of a rigid shell and a flexible scraper. The flexible scrapers on the two scraping components are arranged alternately, which can cover the entire area of ​​both sides of the vibrating knife. In conjunction with the up-and-down reciprocating motion of the vibrating knife, it can achieve comprehensive and efficient scraping of the debris adhering to the knife side, maintain the cleanliness of the knife surface, and ensure the subsequent cutting accuracy. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of the vibrating blade, the moving component, the cooling plate, and the connecting component in this invention;

[0027] Figure 3 This is a schematic diagram of the structure of the vibrating knife, electric cylinder 1, lifting block and moving arm in this invention;

[0028] Figure 4 This is a partial cross-sectional view of the movable arm and the air blowing plate in this invention;

[0029] Figure 5 This is a cross-sectional view of the air-blowing plate in this invention;

[0030] Figure 6 This is a schematic diagram of the structure of the L-shaped arm, heat insulation plate, clamping plate one, and clamping plate two in this invention;

[0031] Figure 7 This is a schematic diagram of the structure of the vibrating knife, connecting arm, electric cylinder II, and scraping component in this invention;

[0032] Figure 8 This is a schematic diagram of the scraping component and the vibrating knife in this invention.

[0033] In the diagram: 1. Workbench; 2. Track assembly; 3. Vibrating knife; 4. Scraping unit; 5. Cooling unit; 21. L-shaped arm; 22. Heat insulation plate; 23. Clamping plate one; 24. Clamping plate two; 25. Cooling element; 41. Connecting assembly; 42. Scraping component; 51. Moving assembly; 52. Air blowing plate; 411. Connecting arm; 412. Electric cylinder two; 413. Electric cylinder three; 511. Lifting block; 512. Moving arm; 513. Screw structure; 514. Electric cylinder one. Detailed Implementation

[0034] The embodiments of the present invention are described in detail below. The embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. Where specific techniques or conditions are not specified in the embodiments, they shall be performed in accordance with the techniques or conditions described in the literature in the art or in accordance with the product manual.

[0035] See Figure 1 and Figure 2 A vibrating knife cutting mechanism for a flexible material CNC cutting machine includes a worktable 1, a vibrating knife 3 mounted on the worktable 1 via a track assembly 2, a scraping unit 4 for scraping the vibrating knife 3, and a cooling unit 5 for cooling the vibrating knife 3.

[0036] In this embodiment, the track assembly 2 adopts the drive unit in a traditional CNC cutting machine. The track assembly 2 can drive the vibrating knife 3 to move along the X and Y axes, and can also drive the vibrating knife 3, the scraping unit 4, and the cooling unit 5 to rotate around the vibrating knife 3 as the axis, thereby changing the cutting direction of the vibrating knife 3 and making the vibrating knife 3 move along the preset cutting trajectory. In this embodiment, the vibrating knife 3 adopts a combination of existing cutting tools, tool holders, and reciprocating motion drive structures, so that the vibrating knife 3 in this invention can be vertically extended and retracted, so as to insert the vibrating knife 3 into the material for cutting, or to lift the knife to move the vibrating knife 3 out of the material for tool rotation.

[0037] During cutting, the vibrating knife 3 vibrates the cutting tool up and down at a high speed at a specified frequency. Then, the track assembly 2 drives the vibrating knife 3 to move along a preset trajectory. When the vibrating knife 3 inserts the cutting tool downward into the material, it cuts the material laid on the worktable 1. When the vibrating knife 3 is raised to the top of the material, the cutting tool is turned by the vibrating knife 3, making it easier to insert the vibrating knife 3 into the material again.

[0038] When the vibrating blade 3 is inserted into the material for cutting, the cooling unit 5 blows the cooling air directly onto the back of the vibrating blade 3 to cool it down during cutting. When the blade is lifted, the cooling unit 5 blows the cooling air onto the two sides of the vibrating blade 3 to cool it down during lifting. This achieves full-process cooling of the vibrating blade 3 during operation, extends the continuous running time of the vibrating blade 3, reduces the frequency of manual cleaning, and thus improves cutting efficiency.

[0039] After the vibrating knife 3 continuously cuts the material for a specified time, debris inevitably adheres to the blade and sides of the vibrating knife 3. Therefore, when the vibrating knife 3 is lifted periodically, the scraping unit 4 automatically scrapes the blade and two sides of the vibrating knife 3 to remove the debris on the vibrating knife 3 online, further reducing the frequency of manual cleaning and significantly improving the cutting efficiency.

[0040] See Figure 2 , Figure 3 , Figure 4 and Figure 5 The cooling unit 5 includes an air blowing plate 52 mounted on the track assembly 2 via a moving component 51. The air blowing plate 52 has a set of through holes on the side facing the vibrating knife 3, and a set of oblique holes facing the side of the vibrating knife 3 are respectively opened on both sides of the air blowing plate 52.

[0041] During cutting, the track assembly 2 drives the vibrating knife 3 to move on the X and Y axes. At the same time, the track assembly 2 drives the air blowing plate 52 to move synchronously through the moving component 51, so that the air blowing plate 52 is always on the cutting trajectory of the vibrating knife 3. At the same time, cooling airflow is introduced into the air blowing plate 52, and the cooling airflow is blown out through the through holes and oblique holes on the air blowing plate 52.

[0042] When the vibrating blade 3 is inserted into the material and cuts the material over a specified distance, the track assembly 2 drives the air blowing plate 52 to move to the cutting position. At this time, the moving component 51 extends the air blowing plate 52 downwards to the material. The material itself blocks the oblique hole, so that the airflow mainly blows directly from the through hole to the back of the vibrating blade 3, thereby achieving active cooling of the vibrating blade 3 during cutting.

[0043] When the blade is lifted, the moving component 51 drives the air blowing plate 52 to lift synchronously and moves the air blowing plate 52 close to the vibrating blade 3, but does not make the air blowing plate 52 contact the vibrating blade 3. At this time, the vibrating blade 3 itself effectively blocks the through hole, so that the cooling airflow in the air blowing plate 52 is mainly blown out from the inclined hole to the blade side of the vibrating blade 3, thereby rapidly cooling the vibrating blade 3 when the blade is lifted.

[0044] When the vibrating knife 3 is lifted away from the material, the blade and sides are exposed. This is the best window of opportunity to remove residual heat from the blade and blow away residual debris. By redirecting the cooling airflow from the oblique holes on both sides to the two sides of the vibrating knife, comprehensive and rapid cooling of both sides of the blade can be achieved. This quickly removes the heat conducted to the sides of the blade during the cutting process, while blowing away as much of the trace amount of melt and debris that has adhered to the sides of the blade as possible, keeping the blade surface clean and creating a good tool condition for the next cut. This also avoids the accumulation of debris that increases cutting resistance.

[0045] It is worth noting that the airflow volume of the air blowing plate 52 from the oblique hole and the through hole in this invention is obtained through repeated experiments by those skilled in the art, which can effectively remove the heat from the vibrating knife 3 and significantly suppress the temperature rise of the vibrating knife 3.

[0046] See Figure 1 , Figure 2 , Figure 7 and Figure 8 The scraping unit 4 includes two scraping components 42 mounted on the track assembly 2 via a connecting component 41. When the blade is lifted, the two scraping components 42 clamp the two sides of the vibrating blade 3 and move the vibrating blade 3 up and down to scrape off the debris on the vibrating blade 3.

[0047] After the vibrating blade 3 has been continuously cutting for a specified time, it is lifted away from the material. The two scraping parts 42 are driven by the connecting component 41 to abut against the vibrating blade 3, so that the scraping parts 42 are attached to the two sides and the blade edge of the vibrating blade 3. Then, the vibrating blade 3 is moved up and down slowly, so that the scraping parts 42 and the vibrating blade 3 move relative to each other, thereby actively scraping off the debris on the vibrating blade 3 and reducing the frequency of manual cleaning during downtime.

[0048] It should be noted that when the scraper 42 scrapes off the debris from the vibrating blade 3, the vibrating blade 3 can be moved to a designated position via the track assembly 2, where a collection trough is placed to collect and uniformly process the scraped debris.

[0049] To further prevent the vibrating blade 3 from overheating during operation, the present invention designs the following structure: (See reference) Figure 1 , Figure 2 and Figure 6An L-shaped arm 21 is fixedly installed on the track assembly 2. A heat insulation plate 22 is vertically slidably connected to the L-shaped arm 21. A clamping plate 23 is fixedly installed on the heat insulation plate 22. A clamping plate 24 is connected to the clamping plate 23 by screws. The clamping plate 23 and the clamping plate 24 are clamped on the handle of the vibrating knife 3. A cooling plate 25 is fixedly connected to the clamping plate 23.

[0050] During cutting, the vibrating knife 3 drives the clamping plate 23 and the clamping plate 24 to move up and down synchronously, and energizes the cooling plate 25, so that the cooling plate 25 absorbs the heat on the clamping plate 23 through contact heat conduction, thereby enabling the clamping plate 23 to quickly absorb the heat on the vibrating knife 3 through contact heat conduction.

[0051] It should be noted that the clamping plates 23 and 24 and their screws are all made of ultra-lightweight, high thermal conductivity metal materials, which can maintain the high-speed up-and-down vibration of the vibrating knife 3. The clamping plates 23 and 24 can be selectively connected to the vibrating knife 3. Therefore, when the present invention cuts materials other than low-melting-point, high-foaming materials such as EVA foam, it is not necessary to precisely maintain the temperature of the vibrating knife 3, and thus the clamping plates 23 and 24 do not need to be connected to the vibrating knife 3.

[0052] It should be noted that the present invention can be equipped with an infrared thermometer on the track assembly 2. The infrared thermometer can monitor the temperature of the vibrating blade 3 in real time in a non-contact manner and transmit the data to the controller. When the temperature of the vibrating blade 3 exceeds the threshold, the controller will power on the cooling chip 25 to reduce energy consumption and prevent the temperature of the vibrating blade 3 from being too low.

[0053] To facilitate bringing the air-blowing plate 52 closer to the vibrating knife 3 and to extend the air-blowing plate 52 downwards into the material, the present invention designs the following structure: (See reference) Figure 2 , Figure 3 and Figure 4 The moving component 51 includes a lifting block 511 that is slidably connected to the track assembly 2, and a moving arm 512 that slides horizontally on the lifting block 511. The moving arm 512 is fixedly connected to the air blowing plate 52.

[0054] During cutting, when the lifting block 511 moves downward, it drives the moving arm 512 to move downward, and the moving arm 512 drives the air blowing plate 52 to extend into the material; when the knife is lifted, the lifting block 511 moves upward to reset, and the horizontally moving moving arm 512 drives the air blowing plate 52 to approach the vibrating knife 3.

[0055] To facilitate the driving of the lifting block 511 and the moving arm 512, the present invention designs the following structure: (See attached diagram) Figure 3The track assembly 2 is provided with a screw structure 513 for driving the lifting block 511, and an electric cylinder 514 for driving the moving arm 512 is provided on the lifting block 511. The screw structure 513 drives the lifting block 511 to slide vertically, and the movement of the extension section of the electric cylinder 514 drives the moving arm 512 to move horizontally relative to the lifting block 511.

[0056] The lead screw structure 513 in this embodiment includes a threaded rod rotatably mounted on the track assembly 2 and an actuator motor fixedly mounted on the track assembly 2. The output shaft of the actuator motor is fixedly connected to the threaded rod, and the threaded rod is threadedly engaged with the lifting block 511. The actuator motor drives the threaded rod to rotate forward and backward, so that the threaded rod drives the lifting block 511 to slide up and down.

[0057] To allow the cooling airflow to exit from the air-blowing plate 52, the present invention is designed with the following structure: (See reference) Figure 3 , Figure 4 and Figure 5 Both the movable arm 512 and the air blowing plate 52 are hollow structures. The movable arm 512 is connected to the air blowing plate 52. The upper end of the movable arm 512 is connected to the air supply equipment. The air supply equipment connects to the movable arm 512 to allow cooling airflow to flow into the movable arm 512, so that the cooling airflow passes through the air blowing plate 52 and is blown out from the through hole and the oblique hole.

[0058] It should be noted that the air blowing plate 52 and the moving arm 512 in this embodiment are both manufactured using metal 3D printing technology, which can realize the design requirements of the air blowing plate 52 being hollow and having through holes and oblique holes.

[0059] To facilitate contact between the movable scraper 42 and the vibrating blade 3, and to achieve the cleaning of debris from the vibrating blade 3, the present invention designs the following structure: (See attached diagram) Figure 2 , Figure 7 and Figure 8 The connecting assembly 41 includes a connecting arm 411 that slides horizontally on the track assembly 2. The lower side of the connecting arm 411 is slidably connected to two scraping parts 42. An electric cylinder 412 is fixedly installed on the connecting arm 411. The telescopic section of the electric cylinder 412 is fixedly connected to the track assembly 2. An electric cylinder 413 is fixedly installed on the rear side of the rear scraping part 42. The telescopic section of the electric cylinder 413 is fixedly connected to another scraping part 42.

[0060] When it is necessary to clean the vibrating knife 3, lift the vibrating knife 3 to the top of the material, retract the telescopic section of the electric cylinder 412, so that the electric cylinder 412 drives the connecting arm 411 to move horizontally. The connecting arm 411 drives the two scraping parts 42 to move to the sides of the vibrating knife 3. Then retract the telescopic section of the electric cylinder 413, so that the electric cylinder 413 pulls the two scraping parts 42 closer to each other until the two scraping parts 42 are clamped and pressed against the vibrating knife 3. Then the vibrating knife 3 moves up and down slowly with the blades on it, so that the scraping parts 42 scrape off the debris on the vibrating knife 3.

[0061] To facilitate thorough cleaning of debris from the vibrating cutter 3, the present invention incorporates the following structure: (See attached diagram) Figure 7 and Figure 8 The scraping component 42 consists of a rigid shell and a flexible scraper. The flexible scrapers on the two scraping components 42 are arranged alternately, which can cover the entire area of ​​both sides of the vibrating knife 3, as well as the position of the flexible scraper against the blade through the force deformation. In conjunction with the up and down reciprocating motion of the vibrating knife 3, it can achieve comprehensive and efficient scraping of the debris adhering to the blade side, maintain the blade surface clean, and ensure the subsequent cutting accuracy.

[0062] Although the present invention adds an air blowing plate 52 and a scraping component 42 to the traditional CNC cutting machine, which increases the initial investment cost of the equipment to a certain extent, when batch cutting low-melting-point high-foaming materials such as EVA foam, the present invention can actively blow air to cool the back of the vibrating knife 3 during the cutting process, and quickly sweep and blow air to cool the two sides of the vibrating knife 3 during the lifting process, which significantly suppresses the temperature rise of the vibrating knife 3 and reduces the tendency of material melting and adhesion.

[0063] Meanwhile, by periodically scraping and cleaning the sides and edges of the vibrating knife 3 online, trace amounts of molten material and debris that have not yet firmly adhered are promptly removed. The synergistic effect of the above-mentioned technical means greatly alleviates the problem of debris adhesion when the vibrating knife 3 cuts low-melting-point, high-foaming materials, effectively extending the single continuous cutting time, significantly reducing the downtime required for blade cleaning or replacement, improving equipment utilization and cutting yield. The resulting savings in labor costs, increased production capacity, and reduced tool wear can quickly cover the increased initial investment, demonstrating significant practicality and economic value.

[0064] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to 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.

[0065] Furthermore, the terms "first," "second," "number one," and "number two" 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," "second," "number one," or "number two" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0066] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0067] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A vibrating knife cutting mechanism of a flexible material CNC cutting machine, comprising a worktable, a vibrating knife is arranged on the worktable through a track assembly, characterized in that, The track assembly is equipped with a scraping mechanism for scraping the vibrating knife and a cooling mechanism for cooling the vibrating knife. The cooling mechanism includes an air blowing plate mounted on the track assembly via a movable component. The air blowing plate has a set of through holes on the side facing the vibrating knife, and a set of oblique holes facing the side of the vibrating knife are respectively opened on both sides of the air blowing plate. During cutting, the material blocks the oblique hole, causing the airflow to blow directly from the through hole to the back of the vibrating knife; when lifting the knife, the moving component drives the air blowing plate to approach the vibrating knife, causing the through hole to be blocked, and at this time the airflow mainly blows out from the oblique hole to the side of the vibrating knife. The scraping mechanism includes two scraping components mounted on the track assembly via a connecting assembly. When the blade is lifted, the two scraping components clamp the two sides of the vibrating blade and move the vibrating blade up and down to scrape off the debris on the vibrating blade.

2. A vibrating knife cutting mechanism for a flexible material computer numerical controlled cutting machine as claimed in claim 1, wherein, An L-shaped arm is fixedly installed on the track assembly, and a heat insulation plate is vertically slidably connected to the L-shaped arm. A clamping plate is fixedly installed on the heat insulation plate.

3. A vibrating knife cutting mechanism for a flexible material numerical control cutting machine according to claim 2, wherein, A second clamping plate is connected to the first clamping plate by screws. The first clamping plate and the second clamping plate are clamped on the handle of the vibrating knife. A cooling plate is fixedly connected to the first clamping plate.

4. The vibrating knife cutting mechanism of claim 1, wherein, The moving component includes a lifting block that is slidably connected to the track assembly, a moving arm that slides horizontally on the lifting block, and the moving arm that is fixedly connected to the air blowing plate.

5. A vibrating knife cutting mechanism for a flexible material numerical control cutting machine according to claim 4, wherein, Both the movable arm and the air blowing plate are hollow structures. The movable arm is connected to the air blowing plate, and the upper end of the movable arm is connected to the air supply equipment.

6. A vibrating knife cutting mechanism for a flexible material numerical control cutting machine according to claim 4, wherein, The track assembly is equipped with a lead screw structure for driving the lifting block, and the lifting block is equipped with an electric cylinder for driving the moving arm.

7. The vibrating knife cutting mechanism of claim 1, wherein, The connecting assembly includes a connecting arm that slides horizontally on the track assembly, with the lower side of the connecting arm slidably connected to two scraping elements.

8. A vibrating knife cutting mechanism for a flexible material numerical control cutting machine according to claim 7, wherein, An electric cylinder two is fixedly installed on the connecting arm, and the telescopic section of the electric cylinder two is fixedly connected to the track assembly.

9. A vibrating knife cutting mechanism for a flexible material numerical control cutting machine according to claim 7, wherein, An electric cylinder three is fixedly installed on the rear side of the scraping component, and the telescopic section of the electric cylinder three is fixedly connected to another scraping component.

10. The vibrating knife cutting mechanism of a flexible material CNC cutting machine according to claim 1, characterized in that, The scraping component consists of a rigid outer shell and a flexible scraper, with the two flexible scrapers arranged alternately above and below.

Images