A cutting device

Abstract

The application relates to the technical field of cutting devices, in particular to a cutting device with a moving cutter and a fixed cutter. The cutting device comprises a fixed cutter mechanism, a moving cutter mechanism and an elastic pressure connection mechanism. The fixed cutter mechanism comprises a fixed cutter, the moving cutter mechanism comprises a moving cutter, the moving cutter can make a cutting motion relative to the fixed cutter, and the elastic member of the elastic pressure connection mechanism applies an elastic pre-tightening force to the moving cutter. The cutting device ensures that the moving cutter can stably and closely adhere to the fixed cutter in the whole cutting stroke through the continuous pressing force provided by the elastic pressure connection mechanism, so that the cutting quality and stability are obviously improved, and the requirement for assembly precision is reduced. Meanwhile, the pressing force always exists between the moving cutter and the fixed cutter, so that after the moving cutter is replaced, the gap between the moving cutter and the fixed cutter does not need to be manually adjusted, and the production efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of cutting device technology, and in particular to a cutting device having a moving blade and a fixed blade. Background Technology

[0002] Cutting devices are commonly found in various technical fields such as textiles, packaging, printing, and material processing, and are used to cut sheet or strip materials to a fixed length or continuously. Traditional cutting devices typically consist of a fixed blade and a moving blade driven by a drive mechanism. The relative movement between the moving blade and the fixed blade achieves the cutting purpose.

[0003] However, during high-speed or continuous cutting, gaps or insufficient fit between the moving and stationary blades can easily lead to incomplete cutting or uneven cuts. Furthermore, each time a new moving blade is replaced due to wear, the gap between the moving and stationary blades needs to be readjusted. Related technologies typically employ rigid connections or manual adjustments to maintain blade contact, but due to a lack of dynamic compensation capabilities, they are ill-suited to adapt to different cutting requirements under varying working conditions. Utility Model Content

[0004] Therefore, it is necessary to provide a cutting device to address the issue of the gap between the moving blade and the fixed blade during the cutting or blade changing process.

[0005] This application provides a cutting device, the cutting device comprising:

[0006] A fixed-blade mechanism, which includes a fixed blade;

[0007] A moving blade mechanism, comprising a moving blade configured to perform a cutting motion relative to the fixed blade under external force;

[0008] An elastic pressing mechanism includes at least one elastic element that causes the moving blade to elastically press against the fixed blade, so that the moving blade remains in contact with the fixed blade during its movement relative to the fixed blade.

[0009] Optionally, in the above-described cutting device, the fixed blade mechanism further includes at least one fixed base; wherein each fixed base includes an interconnected mounting portion and a connecting portion, the mounting portion being located on the side of the movable blade away from the fixed blade, and the mounting portion being fixedly connected to the fixed blade through the connecting portion; at least one elastic element is provided at each mounting portion, and an elastic preload force is applied to the movable blade by the elastic element to press the movable blade against the fixed blade.

[0010] Optionally, in the above-mentioned cutting device, the elastic pressing mechanism further includes a first guide member and a second guide member that slide and cooperate with each other, and the first guide member and the second guide member are disposed between each of the mounting parts and the moving blade mechanism;

[0011] The first guide member is movably disposed at the moving blade and moves with the moving blade in a first direction. The second guide member is movably disposed at the mounting part. After the elastic member presses the second guide member in a second direction, the moving blade is then pressed by the first guide member. The first direction is the direction of the cutting movement of the moving blade, and the second direction is perpendicular to the first direction and perpendicular to the plane where the moving blade is located.

[0012] Optionally, in the above-mentioned cutting device, the moving blade is provided with a first mounting part for mounting the first guide member; the mounting part is correspondingly provided with a second mounting part for mounting the second guide member; the elastic member acts on the second guide member to make the first guide member and the second guide member maintain a pre-tight sliding fit.

[0013] Optionally, in the above-mentioned cutting device, the fixed base includes two, which are respectively disposed on both sides of the moving blade perpendicular to the first direction; the cutting device also includes at least two limiting rolling elements, and at least one limiting rolling element is disposed between the connecting part of the fixed base on each side and the moving blade to limit the rolling of the moving blade.

[0014] Optionally, the above-mentioned cutting device further includes:

[0015] Guiding mechanism;

[0016] A drive mechanism, the output end of which is connected to the guide mechanism to drive the guide mechanism to reciprocate along a third direction;

[0017] A follower mechanism is fixedly connected to the moving blade mechanism. Under the guidance of the guide mechanism, when the guide mechanism moves along a third direction under the drive of the drive mechanism, the follower mechanism is restricted by the guide mechanism, causing the moving blade to move along a first direction, thereby causing the moving blade to perform a cutting motion relative to the fixed blade; wherein, the third direction is perpendicular to the first direction.

[0018] Optionally, in the above-mentioned cutting device, the guiding mechanism includes a guide plate connected to the driving mechanism and a guide groove disposed on the guide plate; the follower mechanism includes a connecting bracket connected to the moving blade and a rolling element; the rolling element passes through the guide groove.

[0019] Optionally, in the above-mentioned cutting device, the guiding mechanism includes a connecting bracket and a rolling element connected to the driving mechanism; the follower mechanism includes a guide plate connected to the moving blade and a guide groove disposed on the guide plate; the rolling element passes through the guide groove.

[0020] Optionally, in the above-mentioned cutting device, the connecting bracket includes a U-shaped portion, and two mounting holes are symmetrically arranged at the open end of the U-shaped portion. A rotating shaft is installed in the mounting holes, and the rolling element is connected to the connecting bracket through the rotating shaft.

[0021] Optionally, in the above-mentioned cutting device, the driving mechanism includes a driving component, a lead screw assembly, and a driving connecting block. The output end of the driving component is connected to the lead screw assembly via a coupling, and the driving connecting block is sleeved on the lead screw assembly and fixedly connected to the guiding mechanism.

[0022] The cutting device proposed in this application has at least the following beneficial effects:

[0023] The cutting device proposed in this application includes a fixed blade mechanism, a moving blade mechanism, and an elastic pressing mechanism. The fixed blade mechanism includes a fixed blade, and the moving blade mechanism includes a moving blade. The moving blade can perform cutting motion relative to the fixed blade. The elastic element of the elastic pressing mechanism applies an elastic preload force to the moving blade. This cutting device, through the continuous pressing force provided by the elastic pressing mechanism, ensures that the moving blade maintains a stable and tight fit with the fixed blade throughout the entire cutting stroke, thereby significantly improving cutting quality and stability and reducing assembly accuracy requirements. Simultaneously, due to the constant pressing force between the moving and fixed blades, after replacing the moving blade when it wears out, manual adjustment of the gap between the moving and fixed blades is unnecessary, improving production efficiency. Attached Figure Description

[0024] Figure 1 This is one of the structural schematic diagrams of a cutting device provided in one embodiment of this application.

[0025] Figure 2 for Figure 1 A front view of a cutting device is provided.

[0026] Figure 3 for Figure 1 A rear view of a cutting device is provided.

[0027] Figure 4 A schematic diagram of the fixing base structure of the cutting device provided in one embodiment of this application.

[0028] Figure 5 This is a schematic diagram of the follower mechanism structure provided in one embodiment of this application.

[0029] Figure 6 This is a partial structural schematic diagram of the follower mechanism provided in one embodiment of this application.

[0030] Figure 7 This is a schematic diagram of the structure of the moving blade provided in one embodiment of this application.

[0031] Figure 8This is a second schematic diagram of a cutting device provided for one embodiment of the application.

[0032] Figure 9 This is a partial structural schematic diagram of a cutting device provided in one embodiment of this application.

[0033] Figure 10 A schematic diagram of the structure of the guide plate of the cutting device provided in one embodiment of this application.

[0034] Explanation of reference numerals in the attached figures:

[0035] 10-Cutting device; 11-Limiting rolling element;

[0036] 100-Fixed tool mechanism, 110-Fixed tool, 111-Fixed tool holder, 112-Hollow part, 120-Fixed base, 121-Mounting part, 122-Connecting part, 123-Second mounting part;

[0037] 200 - Moving blade mechanism, 210 - Moving blade, 211 - First mounting part, 212 - Moving blade cutting edge;

[0038] 300 - Elastic pressing mechanism, 310 - Elastic element, 320 - First guide element, 330 - Second guide element;

[0039] 400-Guide mechanism, 410-Guide plate, 411-Guide groove, 412-Guide part, 413-Sliding part, 420-First guide rail, 430-Second guide rail;

[0040] 500-Drive mechanism, 510-Drive component, 520-Screw assembly, 530-Drive connecting block, 540-Coupling, 550-Screw and nut pair, 560-Fixed base;

[0041] 600-Follow-up mechanism, 610-Rolling element, 620-Connecting bracket, 621-U-shaped part, 622-Mounting hole, 623-Rotating shaft. Detailed Implementation

[0042] To make the technical solution and beneficial effects of this application more apparent and understandable, a detailed description is provided below by listing specific embodiments. The accompanying drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly show the details of the local features; unless otherwise defined, the technical and scientific terms used herein have the same meanings as those in the technical field to which this application pertains.

[0043] Cutting devices are widely used in modern production. This application proposes a cutting device primarily used for cutting various sheet materials, film materials, plates, substrates, and other production materials. Figure 1-3As shown, the cutting device 10 proposed in this application includes: a fixed blade mechanism 100, a moving blade mechanism 200, and an elastic pressing mechanism 300.

[0044] The fixed-blade mechanism 100 includes a fixed blade 110. The movable-blade mechanism 200 includes a movable blade 210, which is configured to reciprocate relative to the fixed blade 110 under external force (e.g., by motor drive) to complete the cutting of the material.

[0045] The elastic pressing mechanism 300 includes at least one elastic element 310, which applies an elastic preload to the movable blade 210, thereby maintaining an elastic force between the movable blade 210 and the fixed blade 110 at all times, so that the movable blade 210 is always in contact with the fixed blade 110 during the cutting process. Due to the presence of the elastic preload, the gap between the movable blade 210 and the fixed blade 110 is small, and a stable and reliable contact pressure is maintained between the movable blade 210 and the fixed blade 110 during the cutting process.

[0046] The cutting device 10 of this application has an elastic element 310 on the elastic pressing mechanism 300, and an elastic preload applied by the elastic element 310 is always present between the moving blade 210 and the fixed blade 110. On the one hand, this ensures that the moving blade 210 and the fixed blade 110 remain in contact during the cutting process, thereby achieving uniformity and stability in the cutting. On the other hand, when the moving blade 210 is damaged or dull, it needs to be replaced. After the moving blade 210 is replaced, the elastic preload presses the moving blade 210 back onto the fixed blade 110, eliminating the need for manual readjustment of the gap between the moving blade 210 and the fixed blade 110. This ensures the consistency of the cutting gap, saves manual adjustment time, and improves production efficiency.

[0047] In some embodiments, the fixed blade mechanism 100 of the cutting device 10 further includes at least one fixed base 120. The fixed base 120 secures the elastic member 310 and provides support for the elastic preload of the elastic member 310. Figure 4 As shown, each fixed base 120 includes a mounting portion 121 and a connecting portion 122 connected to each other, with the mounting portion 121 and the connecting portion 122 arranged perpendicularly to each other in an L-shape. The mounting portion 121 is located on the side of the moving blade 210 away from the fixed blade 110, and the mounting portion 121 is fixedly connected to the fixed blade 110 via the connecting portion 122. Each mounting portion 121 is provided with at least one elastic element 310, such as... Figure 2As shown, in this embodiment, three elastic elements 310 are provided at each mounting portion 121. The three elastic elements 310 simultaneously apply an elastic preload force to the moving blade 210, causing the moving blade 210 to press against the fixed blade 110. In this application, the mounting portion 121 of the fixed base 120 is provided on one side of the moving blade 210. The mounting portion 121 connects to the elastic elements 310, providing a solid force application base for the elastic elements 310 and preventing displacement of the force application base.

[0048] The preload of the elastic element 310 in the elastic clamping structure of this application is adjustable. For example, the preload can be changed by adjusting the compression of the spring by turning the fastening screw on the fixing base 120, so that different preloads can be matched when cutting different materials.

[0049] In some embodiments, the elastic pressing mechanism 300 of the cutting device 10 further includes a first guide member 320 and a second guide member 330 that slide against each other. Both the first guide member 320 and the second guide member 330 are disposed between each mounting portion 121 and the moving blade mechanism 200. Specifically, the first guide member 320 is movably disposed on the moving blade 210 and follows the moving blade 210 along a first direction (e.g., under the driving force of an external force). Figure 1 The second guide member 330 is movably mounted on the mounting portion 121 of the fixed base 120, moving in the second direction (e.g., the x-direction). The elastic member 310 extends from the mounting portion 121 of the fixed base 120 towards the second direction (e.g., the x-direction). Figure 1 A spring force is applied in the y-direction to press down the second guide member 330. The second guide member 330 transmits the pressure of the elastic member 310 to the first guide member 320, which then presses down the moving blade 210, keeping the gap between the moving blade 210 and the fixed blade 110 within a certain range. The first direction is the direction of the cutting movement of the moving blade 210, and the second direction is perpendicular to the first direction and to the plane where the moving blade 210 is located.

[0050] For example, the first guide member 320 and the second guide member 330 can be a slider and a slide rail, respectively, and they can be slidably connected to each other. One of the first guide member 320 and the second guide member 330 is a slider, and the other is a slide rail, and they are slidably connected. Specifically, it can include: (1) the first guide member 320 is a slider, and the second guide member 330 is a slide rail. (2) the first guide member 320 is a slide rail, and the second guide member 330 is a slider. One of the slider and the slide rail is provided with a guide groove, and the other slides in the guide groove. Through the sliding connection of the first guide member 320 and the second guide member 330, the movement of the moving blade 210 during the cutting process is guided, and the moving blade 210 is prevented from deviating from the fixed blade 110 during cutting.

[0051] In this embodiment, the elastic element 310 includes a ball-head plunger. A positioning hole corresponding to the ball head of the ball-head plunger is provided on the second guide 330 to facilitate the positioning and force application of the elastic element 310.

[0052] In some embodiments, the moving blade 210 of the cutting device 10 is provided with a first mounting portion 211 for mounting the first guide member 320, such as... Figure 9 As shown, two first guide members 320 are symmetrically arranged at both ends of the moving blade 210, and a first mounting portion 211 is correspondingly provided on the moving blade 210. The first mounting portion 211 includes a groove structure. Correspondingly, as... Figure 4 As shown, the mounting portion 121 of the fixed base 120 is provided with a second mounting portion 123 for mounting the second guide member 330. Two second mounting portions 123 are provided, each including a groove structure. When the moving blade 210 performs a cutting motion, the first guide member 320 and the second guide member 330 are confined within their respective groove structures, allowing for a sliding fit between them, thereby guiding the cutting motion of the moving blade 210. Simultaneously, the working end of the elastic member 310 acts on the second guide member 330, maintaining a pre-tight sliding fit between the first guide member 320 and the second guide member 330.

[0053] The cutting device 10 of this application provides a groove structure in the first mounting part 211 and the second mounting part 123 to constrain the first guide member 320 and the second guide member 330 within the groove structure. This can prevent the first guide member 320 and the second guide member 330 from shaking or deviating during the guiding process, thereby making the movement trajectory of the moving blade 210 more accurate and avoiding local wear or poor cutting caused by the deviation of the moving blade 210.

[0054] In some embodiments, in the cutting device 10, such as Figure 2 As shown, the fixed base 120 includes two components, respectively disposed on both sides of the moving blade 210 perpendicular to the first direction. The cutting device 10 also includes at least two limiting rolling elements 11, with at least one limiting rolling element 11 disposed between the connecting portion 122 of each fixed base 120 and the moving blade 210 to limit the rolling movement of the moving blade 210. Specifically, as... Figure 8As shown, each fixed base 120 has two limiting rolling elements 11 connected to its connecting portion 122. The two limiting rolling elements 11 abut against the moving blade 210 at opposite ends, perpendicular to the cutting direction of the moving blade 210. The limiting rolling elements 11 (e.g., deep groove ball bearings, needle roller bearings, or V-roller bearings) form rolling contact with the two end faces of the moving blade 210, limiting the movement of the moving blade 210 perpendicular to the cutting direction and effectively suppressing any wobble caused during cutting, ensuring stable cutting motion. Simultaneously, the limiting rolling elements 11 can roll along with the cutting motion of the moving blade 210, also serving a guiding function.

[0055] In some embodiments, the cutting device 10 may further include: a guiding mechanism 400, a driving mechanism 500, and a follower mechanism 600. The output end of the driving mechanism 500 is connected to the guiding mechanism 400, thereby driving the guiding mechanism 400 along a third direction (e.g., ...). Figure 1 The follower mechanism 600 is fixedly connected to the moving tool mechanism 200, and moves under the guidance of the guide mechanism. The drive mechanism 500, guide mechanism 400, and follower mechanism 600 are connected in sequence. Specifically, when the guide mechanism 400 moves along a third direction under the drive of the drive mechanism 500, the follower mechanism 600 is restricted by the guide mechanism 400 to move along the first direction (e.g., in the z direction). Figure 1 The third direction (x-direction) causes the moving blade 210 to perform a cutting motion relative to the fixed blade 110. The third direction is perpendicular to the first direction.

[0056] In the cutting device 10 of this application, the drive mechanism 500 is connected to the guide mechanism 400, and the guide mechanism 400 is connected to the follower mechanism 600. The linear reciprocating motion of the guide mechanism 400 along a third direction is converted into a cutting motion of the driving blade 210 along a first direction. The change in motion direction greatly optimizes the spatial layout between the various mechanisms of the device, allowing the power source of the drive mechanism 500 (such as a motor or cylinder) to be installed on the side or rear of the device, thereby making the structure of the entire device more compact and reasonable.

[0057] Further, in this embodiment, the guiding mechanism 400 includes a guide plate 410 and a guide groove 411, wherein the guide plate 410 is drivenly connected to the driving mechanism 500, and the guide groove 411 is disposed on the guide plate 410. Figure 10 As shown, the guide plate 410 includes a guide portion 412 and a sliding portion 413 arranged perpendicularly to each other. A guide groove 411 is provided on the guide portion 412. The plane where the guide portion 412 is located is parallel to the plane where the cutting motion of the moving blade mechanism 200 is located.

[0058] like Figure 5As shown, the follower mechanism 600 includes a rolling element 610 and a connecting bracket 620, wherein the connecting bracket 620 is connected to the moving blade 210 of the moving blade mechanism 200. One end of the follower mechanism 600 rolls into the guide groove 411 via the rolling element 610, and the other end of the follower mechanism 600 is fixedly connected to the moving blade 210 via the connecting bracket 620. The rolling element 610 connects to the connecting bracket 620 after passing through the guide groove 411.

[0059] Specifically, the rolling element 610 can be a rolling bearing, a roller, or other cam structure.

[0060] The cutting device 10 of this application allows for easy removal of the movable blade 210 by simply unscrewing the fixing screws between the connecting bracket 620 and the movable blade 210 when replacing the movable blade 210, making disassembly, maintenance and installation convenient.

[0061] In this application, the rolling element 610 of the follower mechanism 600 is constrained within the guide groove 411 of the guide mechanism 400, forming a high-precision mechanical guiding and constraint system. Through the coordinated movement of the guide groove 411 and the rolling element 610, the groove wall of the guide groove 411 bears the reaction force of the moving blade 210 during the cutting motion, significantly improving the rigidity of the entire cutting device 10 and enabling the moving blade 210 to operate smoothly even when facing impact loads.

[0062] In this embodiment, the angle between the extension direction of the guide groove 411 within the guide plate 410 and the movement direction of the guide mechanism 400 is acute, that is, the guide groove 411 is inclinedly disposed on the guide portion 412 of the guide plate 410. Through the inclined guide groove 411 of this application, the rolling element 610 is confined to move within the guide groove 411, converting the reciprocating motion in the second direction into a linear motion perpendicular to it along the first direction.

[0063] The number of guide grooves 411 can also include multiple ones, thereby enabling the rolling elements 610 to be configured as multiple ones that match the guide grooves 411.

[0064] In this embodiment, the guiding mechanism 400 further includes a first guide rail 420 and a second guide rail 430. The first guide rail 420 is fixedly connected to the sliding portion 413 of the guide plate 410, and the second guide rail 430 is fixedly connected to the fixed tool holder 111. The first guide rail 420 and the second guide rail 430 slide together to drive the guide plate 410 to reciprocate along a third direction.

[0065] In some other embodiments, the positions of the guiding mechanism 400 and the follower mechanism 600 of the cutting device 10 can be interchanged. Specifically, the guiding mechanism 400 includes a connecting bracket 620 and a rolling element 610, with the connecting bracket 620 being drivenly connected to the driving mechanism 500. The follower mechanism 600 includes a guide plate 410 and a guide groove 411, with the guide plate 410 connected to the moving blade 210 and the guide groove 411 provided on the guide plate 410. The rolling element 610 passes through the guide groove 411. In this embodiment, the drive of the driving mechanism 500 is first transmitted to the rolling element 610 via the connecting bracket 620, and then the rolling element 610 drives the guide plate 410 to move, ultimately causing the guide plate 410 to perform a cutting motion with the moving blade 210.

[0066] In some embodiments, such as Figure 6 As shown, the connecting bracket 620 of the cutting device 10 includes a U-shaped portion 621. Two mounting holes 622 are symmetrically arranged at the open end of the U-shaped portion 621. A rotating shaft 623 is installed within the mounting holes 622, and the rolling element 610 is connected to the connecting bracket 620 via the rotating shaft 623. The U-shaped portion 621 of this application has two symmetrically arranged mounting holes 622 at its open end. These symmetrically arranged mounting holes 622 are used to install the rolling element 610, thereby ensuring that the supporting force on the rolling element 610 is uniform when it moves within the guide groove 411. This effectively prevents tilting, jamming, or abnormal wear caused by uneven force, thus ensuring the smoothness of the cutting motion of the moving blade 210.

[0067] In some embodiments, such as Figure 8As shown, the drive mechanism 500 includes a drive component 510, a lead screw assembly 520, and a drive connecting block 530. The fixed tool mechanism 100 includes a fixed tool 110 and a fixed tool holder 111. The drive component 510 includes a motor; depending on actual needs, a cylinder, electric cylinder, or other drive components can also be used. The drive component 510 is fixedly connected to the fixed tool holder 111, and the output end of the drive component 510 is connected to the lead screw assembly 520 via a coupling 540. The lead screw assembly 520 includes a lead screw nut pair 550, which is mounted on the fixed tool holder 111 via a fixing seat 560. The drive connecting block 530 is sleeved on the lead screw nut pair 550, passes through the fixed tool holder 111, and is fixedly connected to a guide plate 410. The guide plate 410 is then connected to the follower mechanism 600. The driving component 510 of the driving mechanism 500 and the moving blade mechanism 200 driven by the follower mechanism 600 are respectively placed on both sides of the fixed blade holder 111. Positioning the driving mechanism 500 and the moving blade mechanism 200 on both sides of the fixed blade holder 111 balances the forces on the fixed blade holder 111 and also makes full use of space, compressing the overall volume of the cutting device 10. The end of the lead screw assembly 520 is fixedly connected to the fixed blade holder 111, and the guide plate 410 is mounted on the fixed blade holder 111 via a drive linear guide rail. When the motor spindle of the driving component 510 rotates, it can push the guide plate 410 to move linearly along the linear guide rail.

[0068] In some embodiments, such as Figure 7 As shown, the moving blade 210 has a moving blade edge 212 near the end face of the fixed blade 110. The moving blade edge 212 is inclined to facilitate the cutting action in coordination with the fixed blade 110. Figure 2 As shown, the fixed blade holder 111 of the cutting device 10 is provided with a hollow part 112, and the blade of the fixed blade 110 is located in the hollow part 112. The hollow part 112 forms a channel for the material to be cut to pass through.

[0069] The cutting device 10 proposed in this application operates as follows:

[0070] The drive component 510 (such as a motor) of the drive mechanism 500 converts the rotational motion into linear motion through the lead screw assembly 520, driving the guide mechanism 400 fixed thereto to reciprocate. Subsequently, the rolling component 610 of the follower mechanism 600 rolls in the guide groove 411 of the guide plate 410. When the guide plate 410 reciprocates, the groove wall of the guide groove 411 forces the rolling component 610 to move along the first direction (i.e., the cutting direction) with the entire follower mechanism 600, thereby driving the moving blade 210 connected to the follower mechanism 600 to move toward or away from the fixed blade 110, ultimately completing the cutting.

[0071] The cutting device 10 proposed in this application provides an elastic preload force through an elastic pressing mechanism 300 during the cutting process. An elastic element 310 mounted on the fixed base 120 continuously applies an elastic preload force perpendicular to the moving blade 210's direction of movement, forcing the moving blade 210 to remain in contact with the surface of the fixed blade 110 throughout its movement. The elastic pressing mechanism 300 of this application can automatically compensate for gaps between the moving blade 210 and the fixed blade 110 caused by cutting wear or other mechanical structural positional misalignments, maintaining the moving blade 210 and the fixed blade 110 in constant contact, ensuring consistent and stable cutting. Simultaneously, due to the elastic preload force of the elastic element 310, manual adjustment of the gap between the moving blade 210 and the fixed blade 110 is unnecessary after replacing the moving blade 210, improving production efficiency. The various components of the cutting device 10 of this application have simple structures, significantly reducing the manufacturing cost of the equipment.

[0072] In this application, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "height," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the purpose of simplifying the description of this application and do not indicate that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. In other words, they should not be construed as limitations on this application.

[0073] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating the relative importance of the indicated features or the number of indicated technical features. Therefore, a feature specified as "first" or "second" may explicitly include at least one of those features. In this application, "multiple" means at least two, such as two, three, etc.; "several" means at least one, such as one, two, three, etc., unless otherwise explicitly specified.

[0074] In this application, unless otherwise expressly defined, the terms "installation," "connection," "linking," "fixing," "setting," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can also 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 application according to the specific circumstances.

[0075] In this application, unless otherwise expressly defined, the terms "above," "on top of," "over," "above," "below," "below," "below," or "below" for "first feature over second feature" can refer to the first and second features being in direct contact, or to the first and second features being in indirect contact through an intermediate medium. Furthermore, "above," "over," and "below" for "first feature over second feature" can mean the first feature is directly above or diagonally above the second feature, or simply indicates that the horizontal height of the first feature is higher than the horizontal height of the second feature. Similarly, "below," "below," and "below" for "first feature over second feature" can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the horizontal height of the first feature is lower than the horizontal height of the second feature.

[0076] It should be understood that the above embodiments are exemplary and are not intended to encompass all possible implementations included in the claims. Various modifications and changes can be made to the above embodiments without departing from the scope of this disclosure. Similarly, the various technical features of the above embodiments can be arbitrarily combined to form other embodiments of this application that may not be explicitly described. Therefore, the above embodiments only illustrate several implementations of this application and do not limit the scope of protection of this patent application.

Claims

1. A cutting device, characterized in that, include: A fixed-blade mechanism, which includes a fixed blade; A moving blade mechanism, comprising a moving blade configured to perform a cutting motion relative to the fixed blade under external force; and An elastic pressing mechanism includes at least one elastic element that causes the moving blade to elastically press against the fixed blade, so that the moving blade remains in contact with the fixed blade during its movement relative to the fixed blade.

2. The cutting device according to claim 1, characterized in that, The fixed blade mechanism further includes at least one fixed base; wherein each fixed base includes an interconnected mounting portion and a connecting portion, the mounting portion being located on the side of the movable blade away from the fixed blade, and the mounting portion being fixedly connected to the fixed blade through the connecting portion; at least one elastic element is provided at each mounting portion, and an elastic preload force is applied to the movable blade by the elastic element to press the movable blade against the fixed blade.

3. The cutting device according to claim 2, characterized in that, The elastic pressing mechanism further includes a first guide member and a second guide member that slide together, and the first guide member and the second guide member are disposed between each of the mounting parts and the moving knife mechanism; The first guide member is movably disposed at the moving blade and moves with the moving blade in a first direction. The second guide member is movably disposed at the mounting part. After the elastic member presses the second guide member in a second direction, the moving blade is then pressed by the first guide member. The first direction is the direction of the cutting movement of the moving blade, and the second direction is perpendicular to the first direction and perpendicular to the plane where the moving blade is located.

4. The cutting device according to claim 3, characterized in that, The moving blade is provided with a first mounting part for mounting the first guide member; The mounting part is provided with a second mounting part for mounting the second guide member; The elastic element acts on the second guide member to maintain a pre-tight sliding fit between the first guide member and the second guide member.

5. The cutting device according to claim 3, characterized in that, The fixed base includes two bases, which are respectively disposed on both sides of the moving blade perpendicular to the first direction; The cutting device further includes at least two limiting rolling elements. At least one limiting rolling element is provided between the connecting part of the fixed base on each side and the moving blade to limit the rolling of the moving blade.

6. The cutting device according to claim 1, characterized in that, Also includes: Guiding mechanism; A drive mechanism, the output end of which is connected to the guide mechanism to drive the guide mechanism to reciprocate along a third direction; A follower mechanism is fixedly connected to the moving blade mechanism. Under the guidance of the guide mechanism, when the guide mechanism moves along a third direction under the drive of the drive mechanism, the follower mechanism is restricted by the guide mechanism, causing the moving blade to move along a first direction, thereby causing the moving blade to perform a cutting motion relative to the fixed blade; wherein, the third direction is perpendicular to the first direction.

7. The cutting device according to claim 6, characterized in that, The guiding mechanism includes a guide plate connected to the driving mechanism and a guide groove disposed on the guide plate; The follower mechanism includes a connecting bracket and a rolling element connected to the moving blade; the rolling element passes through the guide groove.

8. The cutting device according to claim 6, characterized in that, The guiding mechanism includes a connecting bracket and a rolling element connected to the driving mechanism; The follower mechanism includes a guide plate connected to the moving blade and a guide groove disposed on the guide plate; the rolling element passes through the guide groove.

9. The cutting device according to any one of claims 7-8, characterized in that, The connecting bracket includes a U-shaped portion, and two mounting holes are symmetrically arranged at the open end of the U-shaped portion. A rotating shaft is installed in the mounting holes, and the rolling element is connected to the connecting bracket through the rotating shaft.

10. The cutting device according to any one of claims 7-8, characterized in that, The driving mechanism includes a driving component, a lead screw assembly, and a driving connecting block. The output end of the driving component is connected to the lead screw assembly via a coupling. The driving connecting block is sleeved on the lead screw assembly and fixedly connected to the guiding mechanism.

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