Metal mesh cutting device

Abstract

The present invention relates to the technical field of metal mesh production and processing. The present invention provides a metal wire mesh cutting device, which includes a base frame, on which a plurality of conveying roller groups for supporting the horizontal movement of the mesh plate are provided; a cutting assembly is movably arranged above the base frame, and is used to cut along a preset circular trajectory on the mesh plate to form a metal disc; a lower base plate is arranged on the base frame and is located below the conveying roller group, and a cutting position corresponding to the cutting assembly is provided on the lower base plate, and a discharge hole for the metal mesh to pass through is provided on the discharge side of the cutting position, and a suction cup assembly is lifted and arranged at the bottom of the base frame and is located below the discharge hole. The suction cup assembly can absorb the metal mesh and drive the metal mesh to be peeled off from the mesh plate. Through the above technical solution, the adhesion or hanging phenomenon between the metal disc and the residual material after cutting is reduced. It solves the technical problem in the prior art that a metal wire mesh cutting device causes large disturbances in the process of stripping the metal wire mesh, thereby affecting the subsequent cutting accuracy.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of metal mesh production and processing, and in particular, to a metal mesh cutting device. Background Art

[0002] Wire mesh is often used as a filter material in fields such as aerospace and medical devices, where material precision and performance are extremely demanding. Due to the special requirements of these fields, wire mesh has high precision characteristics, and its processing accuracy directly affects the quality and performance of the final product.

[0003] Currently, the industry typically uses laser cutting technology to cut a single sheet of metal mesh into small plates or sheets. This cutting method can meet the initial processing requirements of high-precision wire mesh, but during the cutting process, the cut wire mesh may become stuck or caught on the remaining material due to electrostatic adsorption and micro-melting caused by cutting.

[0004] To address this issue, existing technologies typically perform a unified separation operation at the end of the conveyor. However, during continuous conveying, the active stripping of the wire mesh at the end can easily cause the entire wire mesh to deflect due to the peeling force. This deflection can lead to positioning errors during subsequent cutting, compromising cutting quality and failing to meet the high-precision wire mesh requirements of industries such as aerospace and medical devices. Summary of the Invention

[0005] In order to overcome the above-mentioned defects, the present invention provides a wire mesh cutting device, which solves the technical problem in the prior art that a wire mesh cutting device may cause great disturbance during the process of stripping the wire mesh, thereby affecting the subsequent cutting accuracy.

[0006] According to one aspect, at least one embodiment of the present invention provides a wire mesh cutting device for cutting a plurality of metal mesh sheets on a mesh plate, comprising:

[0007] A base frame, wherein the base frame is provided with a plurality of conveying roller groups for supporting the horizontal movement of the mesh plate;

[0008] a cutting assembly, the cutting assembly being movably disposed above the base frame and configured to cut the screen along a preset circular trajectory to form metal discs;

[0009] The lower bottom plate is arranged on the base frame and is located below the conveying roller group. The lower bottom plate is provided with a cutting position corresponding to the cutting assembly. The discharge side of the cutting position is penetrated by a discharge hole for the metal mesh to pass through.

[0010] The suction cup assembly is lifted and lowered at the bottom of the base frame and is located below the discharge hole. The suction cup assembly can move up to be flush with the top surface of the lower bottom plate to absorb the metal mesh and drive the metal mesh to move down through the discharge hole to peel the metal mesh from the mesh plate.

[0011] For example, in at least one embodiment of the present disclosure, a wire mesh cutting device is provided, wherein the plurality of conveying roller groups are rotatably disposed on the base frame and are spaced apart along the conveying direction of the mesh plate;

[0012] The lower bottom plate is provided with an adsorption fixing member that is lifted and lowered, and the adsorption fixing member is located between the cutting position and the blanking hole. The adsorption fixing member is provided with an adsorption hole, and the adsorption fixing member can move upward and adsorb the mesh plate through the adsorption hole to support and fix the mesh plate.

[0013] For example, at least one embodiment of the present disclosure provides a wire mesh cutting device, wherein the adsorption holes are strip holes perpendicular to the mesh conveying direction, and two groups of adsorption holes are provided on the adsorption fixing member, and the two groups of adsorption holes are respectively located on both sides of the cutting position.

[0014] For example, a wire mesh cutting device provided by at least one embodiment of the present disclosure also includes two top pressure pieces symmetrically arranged on both sides of the base frame, and the top pressure pieces are raised and lowered on the base frame; the bottom of the top pressure piece has a pressing plane portion that can abut against the top surface of the mesh plate, and a fine-adjustment inclined portion is connected below the pressing plane portion, and the inner side wall of the fine-adjustment inclined portion extends obliquely outward and downward; the fine-adjustment inclined portion can move downward and abut against the edge of the mesh plate to adjust the lateral position of the mesh plate.

[0015] For example, in at least one embodiment of the present disclosure, a wire mesh cutting device is provided, wherein the blanking holes are provided in plurality and are arranged at intervals along the transverse direction of the mesh plate, and the suction cup assembly has a plurality of circular suction cup portions arranged in one-to-one correspondence with the blanking holes;

[0016] A pushing piece is horizontally slidably provided at the bottom of the lower base plate, and the pushing piece can move toward the discharge side close to the discharge hole to scrape off the metal mesh on the top of the circular suction cup part.

[0017] For example, at least one embodiment of the present disclosure provides a wire mesh cutting device, wherein a plurality of radially distributed air holes are provided on the top surface of the circular suction cup portion; and the diameter of the air holes gradually decreases from the center of the circular suction cup portion to the periphery of the circular suction cup portion.

[0018] For example, at least one embodiment of the present disclosure provides a wire mesh cutting device, further comprising:

[0019] The material guide hopper is arranged below the lower bottom plate and located on the discharge side of the discharge hole, and is used to receive the metal mesh scraped off from the circular suction cup part; the material guide hopper has a material guide channel extending obliquely downwardly from the discharge side of the discharge hole, and the two side walls of the material guide channel gradually extend obliquely toward the adjacent sides.

[0020] For example, at least one embodiment of the present disclosure provides a wire mesh cutting device, further comprising:

[0021] The first swing arm is swingably arranged on the side of the base frame through a swing axis, and the swing axis is arranged parallel to the conveying direction of the mesh plate. One end of the first swing arm is hinged to the adsorption fixing member through a lifting frame, and the other end is hinged to the top pressure member. The first swing arm can drive the top pressure member to move downward and press against the top surface of the mesh plate under the upward movement of the adsorption fixing member.

[0022] For example, in at least one embodiment of the present disclosure, a wire mesh cutting device is provided, wherein the bottom of the lower base plate is provided with a strip plate arranged along the mesh plate conveying direction, the strip plate is provided with a strip guide groove, and the pusher has a sliding shaft extending laterally and slidably connected to the strip guide groove;

[0023] The adsorption fixing part and the sliding shaft are connected by a first connecting rod, one end of the first connecting rod is hinged to the side wall of the adsorption fixing part, and the other end is hinged to the sliding shaft. The first connecting rod can swing vertically when the adsorption fixing part moves upward and drive the sliding shaft and the pushing part to move synchronously to scrape the metal mesh from the suction cup assembly.

[0024] For example, at least one embodiment of the present disclosure provides a wire mesh cutting device, wherein the bottom of the pusher is provided with a plurality of flexible brushes extending downward, and the flexible brushes are used to scrape off the metal mesh on the top of the circular suction cup.

[0025] The beneficial effects of the embodiments of the present invention are:

[0026] In the present invention, after the metal disc is cut, the vacuum suction cup rises to a level with the top surface of the lower base plate and absorbs the metal disc. It then moves downward along the axis of the feed hole, using a vertical suction force to peel the metal disc from the screen. During this peeling process, the screen is held in a stable position by the support of the conveyor roller assembly and the lower base plate. The suction cup assembly's suction force acts vertically, avoiding the lateral forces that interfere with the screen during end-of-cut peeling in the prior art, thereby preventing screen deflection and ensuring positioning accuracy for subsequent cutting. The coordination of the cutting position with the feed hole in the conveyor direction, coupled with the vertical peeling method of the suction cup assembly, ensures that the metal disc is immediately and actively peeled after cutting, reducing the possibility of the metal disc sticking or catching on the remaining material after cutting. The transverse axis arrangement of the conveyor roller assembly and the support plane of the lower base plate together form a stable screen support structure. The fixed suction cup assembly avoids the overall screen deflection caused by traditional end-of-cut peeling, enabling the cutting device to meet the positioning accuracy and processing quality requirements for high-precision metal wire mesh processing in fields such as aerospace and medical devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for describing the embodiments of the present invention. Obviously, the drawings described below are merely exemplary embodiments of the present invention. Those skilled in the art can, without inventive effort, derive other drawings based on the contents of the exemplary embodiments of the present invention and these drawings.

[0028] Figure 1 This is a schematic structural diagram of a wire mesh cutting device according to an embodiment of the present invention;

[0029] Figure 2 for Figure 1 A structural diagram of another perspective of the embodiment;

[0030] Figure 3 for Figure 2 A schematic diagram of the partially enlarged structure of the middle part A;

[0031] Figure 4 It is a schematic diagram of the local structure of the top pressing piece;

[0032] Figure 5 for Figure 2 Another perspective structural diagram;

[0033] Figure 6 for Figure 5 A schematic diagram of the partially enlarged structure of part B in the middle;

[0034] Figure 7 It is a schematic diagram of the local structure of the circular suction cup part.

[0035] In the figure: base frame 1, cutting assembly 2, lower bottom plate 3, cutting position 301, discharge hole 302, strip guide groove 304, suction cup assembly 4, circular suction cup part 401, air hole 402, conveying roller group 5, adsorption fixing part 6, adsorption hole 601, top pressure part 7, pressing plane part 701, fine-adjusting inclined part 702, pushing part 8, sliding shaft 802, flexible brush part 803, guide hopper 9, guide channel 901, first swing arm 10, swing shaft 1001, lifting frame 1002, first connecting rod 11, strip plate 12. DETAILED DESCRIPTION

[0036] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention.

[0037] To simplify the drawings, only portions relevant to the invention are schematically depicted in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one component with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0038] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0039] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0040] In the description of this embodiment, the terms "up", "down", "left", "right", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0041] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0042] like Figures 1 to 7 As shown, it shows a metal mesh cutting device in one embodiment of the present invention, which is used to cut a plurality of metal mesh sheets on a mesh plate.

[0043] The machine comprises a base frame 1, a cutting assembly 2, a lower base plate 3, and a suction cup assembly 4. The base frame 1 is a frame-like structure, with multiple conveyor roller groups 5 (indicated by a in the accompanying figure) arranged parallel to the direction of mesh conveyance. Each conveyor roller group 5 includes several equally spaced conveyor rollers, with their axes perpendicular to the conveying direction (i.e., the transverse direction) and used to support the mesh and drive its horizontal movement in direction a. The cutting assembly 2 is mounted above the base frame 1 via linear guides and can move in the conveying direction a and transversely perpendicular to direction a. A laser cutting head is located at its lower end, capable of cutting the mesh along a pre-set circular trajectory to form metal discs.

[0044] The lower base plate 3 is horizontally fixed to the middle of the base frame 1, located below the conveyor roller group 5. Its top surface is tangent to the outer circular generatrix of the conveyor rollers, forming a mesh support plane. A cutting position 301 is provided in the middle of the lower base plate 3. This cutting position 301 is a rectangular through-hole that penetrates the upper and lower surfaces. Its position corresponds to the working area of the laser cutting head, allowing the laser cutting head to cut the mesh downward. The downstream side of the cutting position 301 along the conveying direction is the discharge side of the cutting position 301. A discharge hole 302 is provided through the lower base plate 3. The shape of the discharge hole 302 is circular, matching the shape of the metal disc. The center of the hole coincides with the projection of the center of the cutting trajectory onto the horizontal reference plane of the base frame 1.

[0045] The suction cup assembly 4 includes a lifting drive mechanism and a vacuum suction cup. The lifting drive mechanism is fixedly mounted at the bottom of the chassis 1, directly below the discharge hole 302, and its drive shaft is arranged in the vertical direction. The vacuum suction cup is connected to the drive shaft of the lifting drive mechanism via a connecting rod and can move up and down along the axis of the discharge hole 302 under the drive of the lifting drive mechanism. When the vacuum suction cup rises to be flush with the top surface of the lower base plate 3, its adsorption surface is in the same plane as the top surface of the lower base plate 3. At this time, the vacuum suction cup can absorb the cut metal disc through the negative pressure generated by the vacuum pipeline; when the lifting drive mechanism drives the vacuum suction cup to move downward, the metal disc passes through the discharge hole 302 with the vacuum suction cup, and is peeled off from the mesh.

[0046] The wire mesh cutting device supports and conveys the mesh through the conveying roller group 5 on the base frame 1. The axis of the conveying roller is perpendicular to the conveying direction, ensuring that the mesh moves stably along the direction. The lower base plate 3 is arranged below the conveying roller group 5, and its top surface is tangent to the outer circle generatrix of the conveying roller, forming a continuous supporting plane to prevent the mesh from warping or shifting during transportation. The cutting position 301 and the discharge hole 302 are arranged in sequence along the conveying direction. The discharge hole 302 is located on the downstream discharge side of the cutting position 301, and the center of the discharge hole 302 coincides with the projection of the center of the cutting trajectory, so that the metal disc is directly above the discharge hole 302 after cutting, ensuring that the adsorption position of the suction cup assembly 4 corresponds to the cutting position.

[0047] The suction cup assembly 4 achieves vertical movement through a lifting drive mechanism. When the metal disc is cut, the vacuum suction cup rises to be flush with the top surface of the lower base plate 3 and absorbs the metal disc, then moves downward along the axis of the discharge hole 302, and peels the metal disc from the screen through the vertical suction force. During this peeling process, the screen is supported by the conveying roller group 5 and the lower base plate 3 to maintain a stable position. The suction force of the suction cup assembly 4 acts in the vertical direction, avoiding the interference of the lateral force on the screen during the end peeling in the prior art, thereby preventing the screen from deflecting and ensuring the positioning accuracy of subsequent cutting. The coordination of the cutting position 301 and the discharge hole 302 in the conveying direction, as well as the vertical peeling method of the suction cup assembly 4, enables the metal disc to be actively peeled off immediately after cutting is completed, reducing the adhesion or hanging phenomenon between the metal disc and the residual material after cutting. The transverse axis arrangement of the conveying roller group 5 and the supporting plane of the lower base plate 3 together constitute a stable mesh support structure. The positioning and adsorption of the suction cup assembly 4 avoids the overall deflection of the mesh caused by traditional end-to-end uniform peeling, enabling the cutting device to meet the positioning accuracy and processing quality requirements of high-precision metal wire mesh processing in aerospace, medical equipment and other fields.

[0048] In some examples, a plurality of conveyor roller groups 5 are spaced apart on the top of the base frame 1 along the direction of mesh conveyance. Each conveyor roller group 5 includes several conveyor rollers whose axes are perpendicular to the conveyance direction. The lower base plate 3 is embedded below the conveyor roller group, and its top surface is coplanar with the outer circular generatrix of the conveyor rollers. The lower base plate 3 is provided with an adsorption fixture 6 between the cutting position 301 and the discharge hole 302. The adsorption fixture 6 is driven up and down by a vertically arranged electric push rod. The top of the lower base plate is provided with two groups of strip-shaped adsorption holes 601 extending perpendicular to the conveyance direction. The two groups of adsorption holes 601 are symmetrically distributed on the left and right sides with the cutting position 301 as the center. Each group of adsorption holes 601 includes several parallel long holes, the length of which is adapted to the horizontal width of the mesh.

[0049] The lifting stroke of the adsorption fixing part 6 is controllable: when it is necessary to perform overhead stretching on the area to be cut of the screen, the adsorption fixing part 6 rises to a top surface slightly higher than the top of the conveying roller group 5, and the vacuum adsorption force of the strip adsorption hole 601 pulls the screen part upward, so that the screen above the cutting position 301 is in a tensioned state, reducing the vibration of the screen during laser cutting; when it is necessary to cooperate with the top pressing part 7 to press, the adsorption fixing part 6 descends to a top surface slightly lower than the top of the conveying roller group 5. At this time, the screen is supported by the conveying roller group 5, and the pressing plane part 701 of the top pressing part 7 is pressed down to the top surface of the screen.

[0050] The symmetrical arrangement of the strip-shaped adsorption holes 601 allows the adsorption force to act evenly on both sides of the cutting position 301. Compared with single-point adsorption, it can effectively suppress the local deformation of the screen during the cutting process. By adjusting the height of the adsorption fixture 6, the smoothness of the cutting edge can be improved by overhead stretching, and the overall stability of the screen can be enhanced by cooperating with the top pressure piece 7 to meet the processing needs of metal wire meshes of different thicknesses and materials. The strip design of the adsorption hole 601 expands the adsorption area. Combined with the negative pressure of the vacuum system, even at a position slightly lower than the top of the conveyor roller, the adsorption force can still offset the lateral displacement trend of the top pressure piece 7 when pressing down, ensuring the position accuracy of the screen in the cutting area. Structurally, it avoids the problem of cutting track deviation caused by loose fixation in the prior art.

[0051] like Figure 3~Figure 4 As shown, in some examples, mounting frames are provided on both sides of the base frame 1 extending upward, and the top pressing member 7 is raised and lowered in the vertical direction. A pressing plane portion 701 and a fine-adjustment inclined portion 702 are sequentially provided at the bottom of each top pressing member 7. The inner sidewalls of the fine-adjustment inclined portion 702 are inclined toward the center of the screen, that is, extend outward and downward. The fine-adjustment inclined portions 702 of the two top pressing members 7 are inclined in opposite directions. When the top pressing member 7 descends, the fine-adjustment inclined portion 702 first contacts the edge of the screen, and uses the inclined surface guiding effect to push the screen to move horizontally perpendicular to the conveying direction until the pressing plane portion 701 is completely in contact with the top surface of the screen, thereby achieving fine-tuning and rigid compression of the screen's lateral position.

[0052] The fine-adjustment bevel 702 of the top pressure piece 7 and the suction force of the suction fixture 6 form a coordinated positioning structure: the beveled guidance solves the problem of lateral deviation during the initial conveyance of the screen, while the flat pressure prevents displacement caused by vibration during the cutting process. Compared to the traditional single clamping mechanism, this dual positioning method of "guiding fine-adjustment first, then rigid fixation" can correct the screen position. It is particularly suitable for processing high-precision metal screens, avoiding cutting path deviation caused by screen deflection, and improving the edge accuracy and consistency of the metal disc.

[0053] In some examples, the lower base plate 3 is provided with a plurality of circular discharge holes 302 spaced laterally apart on the discharge side of the cutting position 301. A corresponding set of suction cup assemblies 4 is provided below each discharge hole 302, and the diameter of the circular suction cup portion 401 of the suction cup assembly 4 matches the discharge hole 302. A horizontally arranged guide rail is installed at the bottom of the lower base plate 3. The pusher 8 is connected to the guide rail via a slider, and its front end is provided with a scraper portion that is flush with the top surface of the circular suction cup portion 401. When the suction cup assembly 4 drives the metal disc down to the bottom of the discharge hole 302, the pusher 8 slides laterally, and the scraper portion passes through the gap between the discharge hole 302 and the suction cup assembly 4, scraping the metal disc off the surface of the suction cup.

[0054] A guide hopper 9 is provided below the lower base plate 3 and on the discharge side of the discharge hole 302. The discharge side of the discharge hole 302 is the side of the discharge hole 302 away from the cutting position 301. The guide channel 901 of the guide hopper 9 gradually narrows from the entrance to the exit, and the two side walls are inclined toward the center to form a trumpet-shaped structure. When the metal discs are scraped off, they slide along the guide channel 901 to the collection device to avoid multiple pieces from piling up or confusion of directions. The parallel arrangement of multiple discharge holes 302 and the suction cup assembly 4 realizes multi-station synchronous cutting and peeling, significantly improving processing efficiency. The lateral sliding of the pusher 8 is linked to the lifting and lowering action of the suction cup assembly 4 to ensure that the metal discs are scraped off immediately after peeling, reducing the adsorption time and avoiding secondary adhesion caused by static electricity or residual slag. The tapered material guide channel 901 of the guide hopper 9 uses gravity and inclined surface guidance to discharge the metal discs in an orderly manner. Combined with the scraping action of the pusher 8, a complete material discharge process is formed, which solves the problems of low efficiency and mesh damage caused by unified end processing in the existing technology.

[0055] like Figure 7 As shown, in some examples, in the wire mesh cutting device, the suction cup assembly 4 below the blanking hole 302 has a plurality of circular suction cup portions 401, and these circular suction cup portions 401 correspond one to one with the blanking hole 302. The size of the circular suction cup portion 401 is designed to be slightly larger than the conventional metal disc to be processed. On the top surface of the circular suction cup portion 401, a number of air holes 402 are evenly distributed radially with the center of the circle as the center. From the center position of the circular suction cup portion 401 to its periphery, the diameter of the air hole 402 gradually decreases. These air holes 402 are connected to the vacuum system through internal pipes, wherein the air holes at the center position are connected to the main air path, and the air holes on the periphery are connected through branch pipes, thereby forming an adsorption force gradient that decreases from the center to the edge.

[0056] The circular suction cup 401 is slightly larger than a typical metal disc, making it highly adaptable to varying disc cutting sizes within a narrow range. Even when the disc size varies within a certain range, the circular suction cup 401 can still effectively hold the disc, avoiding issues with loose adhesion due to size differences.

[0057] The radially distributed, gradually varying pores (402 in diameter) take advantage of the flexible nature of the wire mesh and balance adsorption stability with mesh protection through differentiated adsorption force distribution. The larger pores in the center provide greater adsorption force, ensuring accurate positioning of the metal disc during cutting and peeling; while the smaller pores at the periphery produce less adsorption force, preventing mesh deformation or tearing due to localized stress.

[0058] Compared to traditional uniform pore designs, this structure distributes the adsorption force more evenly. It achieves stable adsorption for metal discs of varying sizes and is particularly suitable for peeling thin metal meshes. It reduces mesh stretching or breakage caused by excessive edge adsorption, improves the yield rate of high-precision metal discs, and enables the device to better adapt to the processing needs of metal discs of various sizes, enhancing its versatility and practicality.

[0059] like Figure 3~Figure 4 As shown, in some examples, "L"-shaped extension sections 1-1 are provided extending upward from both sides of the base frame 1. A first swing arm 10 is hinged to the top of the extension section 1-1 via a swing axis 1001, which is parallel to the mesh conveying direction. The first swing arm 10 is a telescopic rod structure, with its lower end hinged to the side wall of the adsorption fixture 6 via a lifting frame 1002, and its upper end hinged to the top of the top pressure member 7. When the adsorption fixture 6 rises, the lifting frame 1002 drives the lower end of the first swing arm 10 upward, and the first swing arm 10 swings about the swing axis 1001. Simultaneously, the length of the telescopic rod is adaptively adjusted, driving the top pressure member 7 to descend synchronously, so that the fine-tuning inclined portion 702 and the pressing flat portion 701 sequentially contact the mesh. The linkage structure of the first swing arm 10 synchronizes the movements of the adsorption fixture 6 and the top pressure member 7: while the adsorption fixture 6 rises to adsorb the mesh, the top pressure member 7 descends to complete the compression, eliminating the need for an additional drive mechanism and simplifying the device structure.

[0060] like Figure 5~Figure 6 As shown, in some examples, a strip plate 12 is fixed to the bottom of the lower base plate 3 along the conveying direction. Strip plate 12 defines a strip guide groove 304. A sliding shaft 802 is connected to the rear end of the pusher 8. The sliding shaft 802 passes through the strip guide groove 304 and can slide along the groove. The side wall of the suction fixture 6 is hinged to one end of a first connecting rod 11, and the other end of the first connecting rod 11 is hinged to the sliding shaft 802. When the suction fixture 6 rises, the first connecting rod 11 swings about the hinge point, pushing the sliding shaft 802 to slide along the strip guide groove 304 toward the discharge side, driving the pusher 8 to move synchronously, causing it to scrape the metal disc off the suction cup assembly 4.

[0061] A plurality of flexible brushes 803 are fixed to the bottom of the pusher 8. These brushes are made of elastic silicone and extend 0.5 mm below the top surface of the circular suction cup 401. When the pusher 8 slides, the brushes 803 contact the suction cup surface, peeling the metal discs through flexible contact force, thus preventing damage to the mesh edges caused by rigid scraping.

[0062] The linkage design of the strip guide groove 304 and the first connecting rod 11 converts the vertical motion of the suction fixture 6 into horizontal motion of the pusher 8, achieving mechanical linkage between the cutting, suction, and scraping actions, reducing the complexity of the control system. The flexible brush portion 803 not only ensures effective scraping, but also adapts to minor surface irregularities of the suction cup through elastic deformation, preventing scratches on the mesh or wear on the suction cup caused by rigid contact. This makes the device particularly suitable for processing metal mesh for medical devices requiring high surface precision, improving its applicability and reliability.

[0063] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A metal mesh cutting device for cutting a plurality of metal mesh sheets on a mesh plate, characterized in that: include: A base frame (1), wherein the base frame (1) is provided with a plurality of conveying roller groups (5) for supporting the horizontal movement of the mesh plate; A cutting assembly (2), the cutting assembly (2) being movably arranged above the base frame (1) and being used for cutting the screen along a preset circular trajectory to form a metal disc; A lower base plate (3) is provided on the base frame (1) and is located below the conveying roller group (5). A cutting position (301) corresponding to the cutting assembly (2) is provided on the lower base plate (3). A discharge hole (302) for the metal mesh to pass through is provided on the discharge side of the cutting position (301). A suction cup assembly (4), wherein the suction cup assembly (4) is lifted and arranged at the bottom of the base frame (1) and is located below the discharge hole (302), and the suction cup assembly (4) can be moved upward to be flush with the top surface of the lower bottom plate (3) to absorb the metal mesh, and drive the metal mesh to move downward through the discharge hole (302) to peel the metal mesh from the mesh plate; The lower base plate (3) is provided with a lifting adsorption fixing member (6), and the adsorption fixing member (6) is located between the cutting position (301) and the discharge hole (302); The utility model further comprises two top pressing members (7) symmetrically arranged on both sides of the base frame (1), and the top pressing members (7) are arranged on the base frame (1) in a lifting manner; the bottom of the top pressing member (7) has a pressing plane portion (701) capable of abutting against the top surface of the screen plate, and a fine-adjusting inclined portion (702) is connected below the pressing plane portion (701), and the inner side wall of the fine-adjusting inclined portion (702) extends outward and downward; the fine-adjusting inclined portion (702) can move downward and abut against the edge of the screen plate to adjust the lateral position of the screen plate; a first swinging rod (10), the first swinging rod (10) being swingably arranged on the side of the base frame (1) via a swinging shaft (1001), the swinging shaft (1001) being arranged parallel to the conveying direction of the mesh plate, one end of the first swinging rod (10) being hinged to the adsorption fixing member (6) via a lifting frame (1002), and the other end being hinged to the top pressing member (7), the first swinging rod (10) being able to drive the top pressing member (7) to move downward and press against the top surface of the mesh plate under the upward movement of the adsorption fixing member (6); The material discharge holes (302) are provided in plurality and are arranged at intervals along the transverse direction of the mesh plate, and the suction cup assembly (4) has a plurality of circular suction cup portions (401) arranged in one-to-one correspondence with the material discharge holes (302); A pusher (8) is provided at the bottom of the lower base plate (3) for horizontal sliding movement. The pusher (8) can move toward the discharge side close to the discharge hole (302) to scrape off the metal mesh on the top of the circular suction cup portion (401); The bottom of the lower base plate (3) is provided with a strip plate (12) arranged along the mesh plate conveying direction, the strip plate (12) is provided with a strip guide groove (304), and the pusher (8) has a sliding shaft (802) extending laterally and slidably connected to the strip guide groove (304); The adsorption fixing member (6) and the sliding shaft (802) are connected via a first connecting rod (11), one end of the first connecting rod (11) is hinged to the side wall of the adsorption fixing member (6), and the other end is hinged to the sliding shaft (802), and the first connecting rod (11) can swing vertically when the adsorption fixing member (6) moves upward and drive the sliding shaft (802) and the pushing member (8) to move synchronously to scrape the metal mesh from the suction cup assembly (4).

2. A wire mesh cutting device according to claim 1, characterized in that: The plurality of conveying roller groups (5) are all rotatably arranged on the base frame (1) and are spaced apart along the conveying direction of the mesh plate; the adsorption fixing member (6) is provided with an adsorption hole (601), and the adsorption fixing member (6) can move upward and adsorb the mesh plate through the adsorption hole (601) to support and fix the mesh plate.

3. A wire mesh cutting device according to claim 2, characterized in that: The adsorption holes (601) are strip-shaped holes perpendicular to the conveying direction of the screen plate. Two groups of adsorption holes (601) are provided on the adsorption fixing member (6), and the two groups of adsorption holes (601) are respectively located on both sides of the cutting position (301).

4. The wire mesh cutting device according to claim 1, wherein: A plurality of air holes (402) distributed radially are provided on the top surface of the circular suction cup portion (401); and the diameter of the air holes (402) gradually decreases from the center of the circular suction cup portion (401) to the periphery of the circular suction cup portion (401).

5. The wire mesh cutting device according to claim 1, characterized in that: Also includes: A material guide hopper (9) is provided below the lower bottom plate (3) and located on the discharge side of the discharge hole (302), and is used to receive the metal mesh scraped off the circular suction cup portion (401); the material guide hopper (9) has a material guide channel (901) extending obliquely downwardly from the discharge side of the discharge hole (302), and the two side walls of the material guide channel (901) gradually extend obliquely toward adjacent sides.

6. The wire mesh cutting device according to claim 1, characterized in that: The bottom of the pusher (8) is provided with a plurality of flexible brush portions (803) extending downwards, and the flexible brush portions (803) are used to scrape off the metal mesh on the top of the circular suction cup portion (401).

Images