Wire mesh cutting device

Abstract

The invention relates to the technical field of metal net production and processing, and provides a metal wire net cutting device which comprises a bottom frame, and a plurality of conveying roller sets used for supporting a net plate to move horizontally are arranged on the bottom frame; the cutting assembly is movably arranged above the bottom frame and is used for cutting the net plate along a preset circular track to form a metal wafer; the lower bottom plate is arranged on the bottom frame and located below the conveying roller set, a cutting position corresponding to the cutting assembly is arranged on the lower bottom plate, a discharging hole for the metal mesh to pass through is formed in the discharging side of the cutting position in a penetrating mode, and the suction cup assembly is arranged at the bottom of the bottom frame in a lifting mode and located below the discharging hole. The suction cup assembly can suck the metal mesh and drive the metal mesh to be stripped from the mesh plate. According to the technical scheme, the bonding or hanging phenomenon between the cut metal wafer and the excess material is reduced. The technical problem that in the prior art, a metal wire mesh cutting device can cause large disturbance in the metal wire mesh stripping process, and consequently the follow-up cutting precision is affected is solved.

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] Metal mesh is often used as a filter material in fields such as aerospace, medical equipment, etc., which require extremely high material precision and performance. Due to the special needs of these fields, metal mesh has high-precision characteristics, and its processing accuracy directly affects the quality and performance of the final product. At present, the industry usually uses laser cutting technology to cut a whole metal mesh into small plates or sheets. This cutting method can meet the initial processing requirements of high-precision metal wire mesh, but during the cutting process, the cut metal wire mesh and the remaining material may be adhered or hung due to electrostatic adsorption, micro-melting adhesion caused by cutting, etc. To address this problem, the existing technology generally chooses to perform a unified separation operation at the end of the conveying. However, during the continuous conveying process, when the metal mesh is actively stripped at the end, the stripping force can easily cause the entire metal mesh to deflect. After the metal mesh deflects, the positioning accuracy will be incorrect during the subsequent cutting process, which will affect the cutting quality and cannot meet the high-precision requirements of metal mesh in the fields of aerospace, medical equipment, etc. Summary of the invention

[0003] In order to overcome the above-mentioned defects, the present invention provides a metal mesh cutting device, which solves the technical problem in the prior art that a metal mesh cutting device may cause great disturbance during the process of stripping the metal mesh, thereby affecting the subsequent cutting accuracy.

[0004] According to one aspect, at least one embodiment of the present invention provides a metal mesh cutting device for cutting a plurality of metal mesh sheets on a mesh plate, comprising: A bottom frame, wherein the bottom frame is provided with a plurality of conveying roller groups for supporting the horizontal movement of the mesh plate; A cutting assembly, which is movably disposed above the base frame and is used for cutting the mesh plate along a preset circular trajectory to form a metal disc; A lower bottom plate is arranged on the bottom frame and is located below the conveying roller group. A cutting position corresponding to the cutting assembly is arranged on the lower bottom plate. A discharge hole for the metal mesh to pass through is provided on the discharge side of the cutting position. A suction cup assembly is lifted and lowered at the bottom of the base frame and is located below the feed hole. The suction cup assembly can move upward to be flush with the top surface of the lower bottom plate to absorb the metal mesh and drive the metal mesh to move downward through the feed hole to peel the metal mesh off the mesh plate.

[0005] For example, in at least one embodiment of the present disclosure, a metal wire mesh cutting device is provided, wherein a plurality of conveying roller groups are rotatably disposed on the base frame and are spaced apart along the conveying direction of the mesh plate; The lower bottom plate is provided with an adsorption fixing member that is lifted and lowered, the adsorption fixing member is located between the cutting position and the unloading hole, the adsorption fixing member is provided with an adsorption hole, the adsorption fixing member can move upward and adsorb the mesh plate through the adsorption hole to support and fix the mesh plate.

[0006] 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.

[0007] 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.

[0008] For example, in at least one embodiment of the present disclosure, a wire mesh cutting device is provided, wherein the feed holes are provided in plurality and are arranged at intervals in the transverse direction of the mesh plate, and the suction cup assembly has a plurality of circular suction cup portions which are arranged in one-to-one correspondence with the feed holes; A material pushing piece is horizontally slidably arranged at the bottom of the lower bottom plate, and the material pushing piece can move toward the material discharging side close to the material discharging hole to scrape off the metal mesh sheet on the top of the circular suction cup part.

[0009] 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.

[0010] For example, at least one embodiment of the present disclosure provides a wire mesh cutting device, further comprising: 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 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.

[0011] For example, at least one embodiment of the present disclosure provides a wire mesh cutting device, further comprising: A first swing rod, the first swing rod is swingably arranged on the side of the base frame through a swing axis, the swing axis is arranged parallel to the conveying direction of the mesh plate, one end of the first swing rod 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 rod 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.

[0012] For example, in at least one embodiment of the present disclosure, a wire mesh cutting device is provided, wherein a strip plate arranged along the mesh plate conveying direction is provided at the bottom of the lower bottom plate, a strip guide groove is provided on the strip plate, and the pusher has a sliding shaft extending transversely and slidably connected to the strip guide groove; The adsorption fixing member 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 member, and the other end is hinged to the sliding shaft. The first connecting rod can swing vertically when the adsorption fixing member moves upward and drive the sliding shaft and the pushing member to move synchronously to scrape the metal mesh from the suction cup assembly.

[0013] For example, in at least one embodiment of the present disclosure, a wire mesh cutting device is provided, wherein a plurality of flexible brush portions extending downward are provided at the bottom of the pusher, and the flexible brush portions are used to scrape off the metal mesh on the top of the circular suction cup portion.

[0014] The beneficial effects of the embodiments of the present invention are: In the present invention, after the metal disc is cut, the vacuum suction cup rises to be flush with the top surface of the lower bottom plate and absorbs the metal disc, and then moves downward along the axis of the feed hole, and the metal disc is peeled off from the mesh plate by the vertical adsorption force. During the peeling process, the mesh plate is supported by the conveying roller group and the lower bottom plate to maintain a stable position, and the adsorption force of the suction cup assembly acts in the vertical direction, avoiding the interference of the lateral force on the mesh plate during the end peeling in the prior art, thereby preventing the mesh plate from being deflected and ensuring the positioning accuracy of subsequent cutting. The position coordination between the cutting position and the feed hole in the conveying direction, as well as the vertical peeling method of the suction cup assembly, realizes that the metal disc is actively peeled off immediately after the cutting is completed, reducing the adhesion or hanging phenomenon between the metal disc and the residual material after cutting. The lateral axis arrangement of the conveying roller group and the supporting plane of the lower bottom plate together constitute a stable mesh support structure, and the positioning adsorption of the suction cup assembly avoids the overall deflection of the mesh plate caused by the traditional end uniform peeling, so that the cutting device can meet the positioning accuracy and processing quality requirements for high-precision metal wire mesh processing in the fields of aerospace, medical equipment, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in describing the embodiments of the present invention. Obviously, the drawings described below are only some exemplary embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on the contents of the exemplary embodiments of the present invention and these drawings without creative work.

[0016] Figure 1 It is a schematic structural diagram of a metal mesh cutting device in one embodiment of the present invention; Figure 2 for Figure 1 A structural schematic diagram of another viewing angle in the embodiment of the present invention; Figure 3 for Figure 2 A partial enlarged structural diagram of the middle part; Figure 4 It is a schematic diagram of the local structure of the top pressing piece; Figure 5 for Figure 2 Another perspective structural diagram; Figure 6 for Figure 5 A schematic diagram of the partially enlarged structure of the middle B part; Figure 7 It is a schematic diagram of the local structure of the circular suction cup part.

[0017] In the figure: base frame 1, cutting assembly 2, lower bottom plate 3, cutting position 301, feeding 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 pressing part 7, pressing plane part 701, fine-adjusting inclined part 702, pushing part 8, sliding shaft 802, flexible brush part 803, material guide hopper 9, material guide channel 901, first swing rod 10, swing shaft 1001, lifting frame 1002, first connecting rod 11, strip plate 12. DETAILED DESCRIPTION

[0018] The present invention will be further described in detail below in conjunction with 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.

[0019] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0020] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0022] In the description of this embodiment, terms such as "up", "down", "left", and "right" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] 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.

[0024] like Figure 1 to Figure 7 As shown, it shows a metal wire 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. It includes a base frame 1, a cutting assembly 2, a lower bottom plate 3 and a suction cup assembly 4. The base frame 1 is a frame structure, and a plurality of conveying roller groups 5 are arranged in parallel on the top along the conveying direction of the mesh plate, which are marked with a in the figure. Each conveying roller group 5 includes a plurality of conveying rollers arranged equidistantly, and the axis of the conveying roller is perpendicular to the conveying direction, i.e., the horizontal direction, and is used to support the mesh plate and drive it to move horizontally along the direction a. The cutting assembly 2 is installed on the top of the base frame 1 through a linear guide rail, and can move along the conveying direction a and horizontally perpendicular to the direction a. A laser cutting head is provided at its lower end, which can cut along a preset circular track on the mesh plate to form a metal disc.

[0025] The lower bottom plate 3 is fixed horizontally in the middle of the base frame 1, below the conveying roller group 5, and its top surface is tangent to the outer circle generatrix of the conveying roller to form a mesh support plane. A cutting position 301 is provided in the middle of the lower bottom plate 3. The 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, so that the laser cutting head can 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 feeding hole 302 is provided through the lower bottom plate 3. The shape of the feeding hole 302 is a circle that matches the shape of the metal disc, and its center coincides with the projection of the center of the cutting trajectory on the horizontal reference plane of the base frame 1.

[0026] The suction cup assembly 4 includes a lifting drive mechanism and a vacuum suction cup. The lifting drive mechanism is fixedly installed at the bottom of the base frame 1 and directly below the feed 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 through a connecting rod, and can move up and down along the axis direction of the feed 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 adsorb 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 feed hole 302 with the vacuum suction cup to be peeled off from the mesh.

[0027] 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 to ensure that the mesh moves stably along the direction. The lower bottom 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 to form 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 located above the discharge hole 302 after cutting, ensuring that the adsorption position of the suction cup assembly 4 corresponds to the cutting position.

[0028] The suction cup assembly 4 realizes vertical movement through the lifting drive mechanism. When the metal disc is cut, the vacuum suction cup rises to be flush with the top surface of the lower bottom plate 3 and absorbs the metal disc, and then moves downward along the axis of the discharge hole 302, and the metal disc is peeled off from the mesh plate by the vertical absorption force. During the peeling process, the mesh plate is supported by the conveying roller group 5 and the lower bottom plate 3 to maintain a stable position. The absorption force of the suction cup assembly 4 acts in the vertical direction, avoiding the interference of the lateral force on the mesh plate during the end peeling in the prior art, thereby preventing the mesh plate from being deflected 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, realizes that the metal disc is actively peeled off immediately after the 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 the traditional end-to-end uniform peeling, so that the cutting device can meet the positioning accuracy and processing quality requirements of high-precision metal wire mesh processing in the fields of aerospace, medical equipment, etc.

[0029] In some examples, a plurality of conveying roller groups 5 are arranged at intervals on the top of the base frame 1 along the conveying direction of the mesh plate, and each conveying roller group 5 includes a plurality of conveying rollers whose axes are perpendicular to the conveying direction. The lower bottom plate 3 is embedded below the conveying roller group, and its top surface is coplanar with the outer circle generatrix of the conveying roller. The lower bottom plate 3 is provided with an adsorption fixing member 6 between the cutting position 301 and the unloading hole 302. The adsorption fixing member 6 is driven to rise and fall by a vertically arranged electric push rod, and two groups of strip adsorption holes 601 extending perpendicular to the conveying direction are opened on the top thereof. The two groups of adsorption holes 601 are symmetrically distributed on the left and right sides with the cutting position 301 as the center, and each group of adsorption holes 601 includes a plurality of parallel long holes, and the length of the long holes is adapted to the horizontal width of the mesh plate.

[0030] The lifting stroke of the adsorption fixing part 6 can be controlled: 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 is used to partially pull the screen 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.

[0031] 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 local deformation of the mesh 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 mesh 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-shaped design of the adsorption holes 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 lateral displacement trend of the top pressure piece 7 when pressing down can still be offset by the adsorption force, thereby ensuring the position accuracy of the mesh in the cutting area. Structurally, it avoids the problem of cutting track deviation caused by loose fixation in the prior art. like Figure 3~Figure 4 As shown, in some examples, mounting frames are extended upward on both sides of the base frame 1, and the top pressing piece 7 is raised and lowered in the vertical direction. A pressing plane portion 701 and a fine-adjusting inclined portion 702 are sequentially arranged at the bottom of each top pressing piece 7. The inner side wall of the fine-adjusting inclined portion 702 is inclined toward the center direction of the mesh plate, that is, extends outward and downward, and the fine-adjusting inclined portions 702 of the two top pressing pieces 7 are inclined in opposite directions. When the top pressing piece 7 descends, the fine-adjusting inclined portion 702 first contacts the edge of the mesh plate, and uses the guiding effect of the inclined surface to push the mesh plate to move in the transverse direction perpendicular to the conveying direction until the pressing plane portion 701 is completely in contact with the top surface of the mesh plate, thereby achieving fine-tuning and rigid compression of the transverse position of the mesh plate.

[0032] The fine-tuning inclined surface 702 of the top pressing piece 7 and the adsorption force of the adsorption fixing piece 6 form a positioning structure that cooperates with each other: the inclined surface guide solves the lateral deviation problem during the initial conveying of the screen, and the flat surface pressure prevents the displacement caused by vibration during the cutting process. Compared with the traditional single clamping structure, this dual positioning method of "first fine-tuning the guide, then rigid fixation" can correct the position of the screen, which is especially suitable for the processing of high-precision metal wire mesh, avoiding the deviation of the cutting track caused by the deflection of the screen, and improving the edge accuracy and consistency of the metal disc.

[0033] In some examples, the lower base plate 3 is provided with a plurality of circular discharge holes 302 spaced apart along the horizontal direction on the discharge side of the cutting position 301, and a group of suction cup assemblies 4 are correspondingly 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, and the pusher 8 is connected to the guide rail through a slider, and a scraper portion flush with the top surface of the circular suction cup portion 401 is provided at its front end. When the suction cup assembly 4 drives the metal disc to move down to the bottom of the discharge hole 302, the pusher 8 slides along the horizontal direction, and the scraper portion passes through the gap between the discharge hole 302 and the suction cup assembly 4 to scrape the metal disc off the surface of the suction cup.

[0034] A guide hopper 9 is provided below the lower bottom 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 with the lifting and lowering action of the suction cup assembly 4 to ensure that the metal discs are scraped off immediately after peeling, reduce the adsorption time, and avoid secondary adhesion caused by static electricity or residual slag. The tapered material guide channel 901 of the guide hopper 9 utilizes gravity and inclined surface guidance to discharge the metal discs in an orderly manner, and cooperates with the scraping action of the pusher 8 to form a complete material discharge process, thus solving the problems of low efficiency and mesh damage caused by unified end processing in the prior art.

[0035] like Figure 7 As shown, in some examples, in the wire mesh cutting device, the suction cup assembly 4 below the feed hole 302 has a plurality of circular suction cup portions 401, and these circular suction cup portions 401 correspond one to one with the feed 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 plurality 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 pipelines, wherein the air holes at the center position are connected to the main air circuit, and the air holes at the periphery are connected through branch pipelines, thereby forming an adsorption force gradient that decreases from the center to the edge.

[0036] The circular suction cup portion 401 is slightly larger than a conventional metal disc, which makes the device well adaptable when the size of the metal disc to be cut varies within a small range. When the size of the metal disc to be cut varies within a certain range, the circular suction cup portion 401 can still effectively absorb the metal disc, avoiding the problem of weak absorption due to size differences.

[0037] The radially distributed and gradually changing diameter pores 402 are designed to balance the adsorption stability and mesh protection requirements through the differentiated distribution of adsorption force based on the flexible characteristics of the metal wire mesh. The larger diameter pores in the center provide greater adsorption force to ensure accurate positioning of the metal disc during cutting and peeling; while the smaller diameter pores on the periphery produce relatively smaller adsorption force to avoid deformation or tearing of the mesh due to excessive local stress.

[0038] Compared with the traditional uniform pore design, this structure can disperse the adsorption force more evenly. It can achieve stable adsorption when facing metal discs of different sizes, and is especially suitable for the peeling operation of thin metal meshes. It reduces the stretching or breakage of the mesh caused by excessive edge adsorption, improves the yield rate of high-precision metal discs, enables the device to better adapt to the processing needs of various metal discs of different specifications, and improves the versatility and practicality of the equipment.

[0039] like Figure 3~Figure 4 As shown, in some examples, an "L"-shaped extension section 1-1 is extended upward on both sides of the base frame 1, and the first swinging rod 10 is hinged to the top of the extension section 1-1 through a swinging shaft 1001, and the swinging shaft 1001 is parallel to the conveying direction of the mesh. The first swinging rod 10 is a telescopic rod structure, and its lower end is hinged to the side wall of the adsorption fixing member 6 through a lifting frame 1002, and the upper end is hinged to the top of the top pressing member 7. When the adsorption fixing member 6 rises, the lower end of the first swinging rod 10 is driven to move upward through the lifting frame 1002, and the first swinging rod 10 swings around the swinging shaft 1001. At the same time, the length of the telescopic rod is adaptively adjusted to drive the top pressing member 7 to descend synchronously, so that the fine-tuning inclined surface 702 and the pressing plane surface 701 contact the mesh in turn. The linkage structure of the first swinging rod 10 realizes the synchronous action of the adsorption fixing member 6 and the top pressing member 7: while the adsorption fixing member 6 rises to adsorb the mesh, the top pressing member 7 descends to complete the pressing, without the need for an additional driving mechanism, simplifying the device structure.

[0040] like Figure 5~Figure 6 As shown, in some examples, a strip plate 12 is fixed to the bottom of the lower bottom plate 3 along the conveying direction, and a strip guide groove 304 is opened on the strip plate 12. The rear end of the pusher 8 is connected to a sliding shaft 802, and the sliding shaft 802 passes through the strip guide groove 304 and can slide along the groove. The side wall of the adsorption fixture 6 is hinged to one end of the first connecting rod 11, and the other end of the first connecting rod 11 is hinged to the sliding shaft 802. When the adsorption fixture 6 rises, the first connecting rod 11 swings around 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, so that the pusher 8 scrapes off the metal disc on the suction cup assembly 4.

[0041] A plurality of flexible brushes 803 are fixed at the bottom of the pusher 8. The flexible brushes 803 are made of elastic silicone material and extend to 0.5 mm below the top surface of the circular suction cup 401. When the pusher 8 slides, the flexible brushes 803 contact the surface of the suction cup and peel off the metal disc through the flexible contact force, thus avoiding damage to the edge of the mesh by rigid scratching.

[0042] The linkage design of the strip guide groove 304 and the first connecting rod 11 converts the vertical movement of the adsorption fixing member 6 into the horizontal movement of the pusher 8, realizes the mechanical linkage of cutting, adsorption and scraping, and reduces the complexity of the control system. The setting of the flexible brush part 803 not only ensures the scraping effect, but also adapts to the slight unevenness of the suction cup surface by elastic deformation, avoids mesh scratches or suction cup wear caused by rigid contact, and is particularly suitable for the processing of metal mesh for medical devices with high surface accuracy requirements, thereby improving the applicability and reliability of the device.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. 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 wire mesh cutting device, used 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 on the screen along a preset circular trajectory to form a metal disc; A lower bottom plate (3) is arranged on the bottom 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 bottom 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) is arranged at the bottom of the base frame (1) in a lifting manner and is located below the feed hole (302). 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 feed hole (302) to peel the metal mesh from the mesh plate.

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 arranged at intervals along the conveying direction of the screen; The lower bottom plate (3) is provided with a lifting adsorption fixing member (6), the adsorption fixing member (6) is located between the cutting position (301) and the material discharge hole (302), 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 holes perpendicular to the conveying direction of the mesh 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. A wire mesh cutting device according to claim 2, characterized in that: It also includes 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) that can abut against the top surface of the mesh plate, and the lower part of the pressing plane portion (701) is connected to a fine-adjustment inclined portion (702), and the inner side wall of the fine-adjustment inclined portion (702) extends outward and downward; the fine-adjustment inclined portion (702) can move downward and abut against the edge of the mesh plate to adjust the lateral position of the mesh plate.

5. A wire mesh cutting device according to claim 2, characterized in that: The material discharge holes (302) are provided in plurality and are arranged at intervals in the transverse direction of the mesh plate, and the suction cup assembly (4) comprises a plurality of circular suction cup portions (401) arranged in one-to-one correspondence with the material discharge holes (302); A material pushing piece (8) is horizontally slidably provided at the bottom of the lower base plate (3), and the material pushing piece (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 part (401).

6. A wire mesh cutting device according to claim 5, characterized in that: 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).

7. A wire mesh cutting device according to claim 5, characterized in that: Also includes: A material guide hopper (9) is arranged 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 toward the lower side of 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.

8. A wire mesh cutting device according to claim 4, characterized in that: Also includes: A first swinging rod (10), wherein the first swinging rod (10) is swingably arranged on the side of the base frame (1) via a swinging shaft (1001), wherein the swinging shaft (1001) is arranged parallel to the conveying direction of the mesh plate, wherein one end of the first swinging rod (10) is hinged to the adsorption fixing member (6) via a lifting frame (1002), and the other end is hinged to the top pressing member (7), wherein the first swinging rod (10) can 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).

9. A wire mesh cutting device according to claim 5, characterized in that: The bottom of the lower bottom 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, so as to scrape the metal mesh off the suction cup assembly (4).

10. A metal mesh cutting device according to claim 5, 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).

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