• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Cut sheet material extraction system for flexible sheet material cutting machines. The system comprises a cutting table (1), said cutting table (1) being formed by a cutting surface (1A), which is formed by brush blocks (3), the brush blocks (3) comprising bristles, and combs (4) provided with projections (5, 6) and placed on one edge of said cutting table (1), defining a proximal end closer to the edge of the cutting table (1) and a further distal end away from the edge of the cutting table (1), the distal end of the projections (5, 6) of each comb (4) being inserted between the bristles of the brush blocks (3), in which the comb (4) It comprises first projections (5) and second projections (6), the distal end of the first projections (5) being further from the edge of the table (1) than the distal end of the second projections (6). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2762048A2
    申请号:ES201831115
    申请日:2018-11-19
    公开日:2020-05-21
    发明作者:Mercadé Antoni Balsells
    申请人:Open Mind Ventures S L U；
    IPC主号:
    专利说明:

    [0002] Cut sheet material extraction system for flexible sheet material cutting machines
    [0004] The present invention relates to a cut sheet material extraction system for sheet material cutting machines, comprising a comb to facilitate removal of the cut material.
    [0006] Background of the Invention
    [0008] Currently the machines for cutting multilayer laminar materials and in some cases also monolayer, comprise a cutting surface formed by brush blocks and combs to facilitate the extraction of the cut material, formed by parallel and inclined projections, which penetrate inside the blocks. of brushes, so that they form a ramp that expels the cut, or uncut, material on the cutting surface to the outside.
    [0010] This occurs at the moment that the cutting surface, acting as a conveyor belt, moves and advances in the direction of this ramp formed by said inclined projections.
    [0012] These projections are arranged in parallel, cover the entire width of the cutting surface, and are located at the end of said cutting surface to facilitate the exit of the cut material.
    [0014] The combs are usually made of laser sheet metal or injected plastic parts that form a set of projections in parallel, side by side, forming a single functional surface to evacuate the sheet material from the cutting surface.
    [0016] Currently all these projections that form the ramp or exit comb are equal and parallel, without alternative designs between them. This design is variable according to the manufacturer of the cutting machine; being very flat and inclined if it is made of sheet metal and more vertical if it is made of plastic
    [0018] This comb is attached to the end of the cutting table, thus ensuring that the Projections, in their entirety, are always with the tip inserted into the brushes. This insertion of the projections in the brushes is variable and depends on the manufacturer or the specific setting for the material to be cut.
    [0020] Often the more the protrusions are inserted into the brush, the better they eject cut material and plastic debris, perforated paper, excess tissue, and pattern tissue. Currently all the projections, being of the same design, fit inside the brushes equally over the entire width of the cutting table.
    [0022] The functional problem with this design is that often the already cut sheet material, vacuum plastic and backing paper, have very sharp points and angles depending on the cut design, which are inserted between the parallel projections, so the material it goes under the comb, between the projections, as the conveyor belt advances, forcing the brushes and the comb, as there is no space for the sheet material, since this design is made precisely to eject the sheet material out of this surface. brushes where previously said sheet material has been cut. This unexpected introduction of materials can also happen because threads or remains of cut materials enter.
    [0024] The result is that the cutting table brushes break, the brush holder bends, the combs are damaged, the sheet material becomes tangled and rips and can cause electronic breakdown by forcing the power system of the conveyor belt. .
    [0026] This current design also presents some hitherto unsolved drawbacks.
    [0028] The more the comb enters the brush, the more it helps to expel the cut tissue, but in return, this solution damages the brushes.
    [0030] The penetration of the projections of the comb is the same over the entire width of the table, and does not allow to act in the most critical areas where there is residual material more susceptible to entering and creating the described problems. Spaces such as the ends of the sheet material are more critical and at greater risk of causing problems.
    [0032] The ejection zone, formed by the comb with parallel projections of the same design, is sealed once the sheet material, paper or plastic enters through the projections. This material no longer has any other possibility of being redirected and expelled again.
    [0033] Therefore, it is forced to follow the wrong path towards the interior of the conveyor belt, between the lower (interior) area of the comb and the cutting surface formed by the brushes located at the outlet, which is where the rotation of the conveyer belt.
    [0035] The projections of the comb are firmly attached to the table, so that when an unexpected material penetrates, there is no space, causing a breakdown of the system, as previously described.
    [0037] Therefore, an objective of the present invention is to provide a cut sheet material extraction system for cutting machines provided with a comb that allows the extraction of the cut material, but avoids the problems mentioned above.
    [0039] Description of the Invention
    [0041] With the extraction system for laminar materials of the invention, the aforementioned drawbacks can be solved, presenting other advantages that will be described below.
    [0043] The cut sheet material extraction system for sheet material cutting machines according to the present invention comprises:
    [0044] a cutting table with a cutting surface, on which the sheet material to be cut is placed, said cutting surface being formed by a plurality of brush blocks, the brush blocks comprising a plurality of bristles,
    [0045] said cutting surface also acts as a conveyor belt, which moves as the sheet material is cut, and
    [0046] a comb for the extraction of the cut sheet material provided with a plurality of projections and placed on one of the edges of said cutting table, defining a proximal end closest to the edge of the cutting table and a distal end furthest from the edge of the cutting table, inserting the distal end of the protrusions of the comb between the bristles of the brush blocks,
    [0047] wherein the extraction comb comprises first protrusions and second protrusions, the distal end of the first protrusions being further from the edge of the cutting table than the distal end of the second protrusions.
    [0049] Specifically, the first protrusions define a main separation zone and the second protrusions define an internal ejection zone.
    [0050] This arrangement of the first and second protrusions redirects or prevents on many occasions that the tips of tissues or remains can easily enter between the fingers of the main separation area when the bottom surface of the sheet material, often due to the vacuum that the table has. cutting machine, could not be separated from the cutting table.
    [0052] Preferably, the first protrusions are longer than the second protrusions and / or the first protrusions are less inclined with respect to the edge of the cutting table than the second protrusions.
    [0054] Furthermore, the comb may advantageously comprise an area of flexible material in the lower part, between the projections of the comb, such as, for example, said area of flexible material being preferably elastomerically overinjected, further assisting in the evacuation of the sheet material of the cutting surface.
    [0056] The comb preferably also comprises a support to which the proximal ends of the first and second projections are attached, and said support comprises a longitudinal articulation, which opens the comb in the event of material jamming.
    [0058] As an alternative to said longitudinal joint, said first and second protrusions may comprise a weakened area narrower than the rest of the protrusion at its proximal end, said weakened area acting as a mechanical fuse, allowing the comb to break in the event of a jam before causing a major breakdown.
    [0060] Furthermore, the comb preferably comprises a sensor that detects the state of said weakened area and / or of said joint.
    [0062] In this way, this weakened area acts as a mechanical fuse, and the sensor can detect the breakage of the weakened area or the opening of the joint, stopping the cutting machine, thus avoiding both mechanical and electronic breakdowns of the cutting machine.
    [0064] There can be a sensor in each modular comb, and also a single sensor can detect mechanically (for example, by cable) or electronically (by photocell, or proximity sensor) the opening by overpressure of said comb.
    [0065] Brief description of the drawings
    [0067] For a better understanding of what has been stated, some drawings are attached in which, schematically and only by way of non-limiting example, a practical case of embodiment is represented.
    [0069] Figure 1 is a perspective view of a part of the sheet material cutting machine according to the present invention;
    [0071] Figure 2 is a perspective view of the detail of the comb area of the sheet material cutting machine according to the present invention; and
    [0073] Figures 3 and 4 are sectional elevation views of the comb area of the sheet material cutting machine according to different embodiments of the present invention.
    [0075] Description of a preferred embodiment
    [0077] The cutting machine according to the present invention comprises a cutting table 1, which includes a cutting surface 1A, on which the sheet material 2 to be cut is placed, said sheet material being, for example, multi-layer fabrics.
    [0079] Said cutting surface 1A is formed by a plurality of brush blocks 3, the brush blocks 3 comprising a plurality of bristles, and said cutting surface 1A moving as the sheet material 2 is cut, for the extraction of the material laminate 2 cut.
    [0081] For this, the cutting machine also comprises an extraction comb 4 that is provided with a plurality of first and second protrusions 5, 6. This comb 4 can be continuous or be formed by modules, as desired.
    [0083] This extraction comb 4 is placed or attached to one of the edges of said cutting table 1, defining a proximal end closest to the edge of cutting table 1 and a distal end furthest from the edge of cutting table 1, the distal end of the projections 5, 6 of the comb 4 being inserted between the bristles of the brush blocks 3.
    [0084] In accordance with the present invention, the distal end of the first protrusions 5 is further from the edge of the cutting table 1 than the distal end of the second protrusions 6, as can be seen in Figures 1 and 2.
    [0086] This arrangement of the projections is achieved by making the first projections 5 longer than the second projections 6 and / or by making the first projections 5 less inclined with respect to the edge of the cutting table 1 than the second projections 6.
    [0088] The projections 5, 6 are preferably made of high-performance plastic for cost reasons, but can also be made of metallic, composite or other materials.
    [0090] The first protrusions 5 define a main separation zone, which is where the majority of sheet material 2 separates from the cutting surface 1A formed by brush blocks 3.
    [0092] For their part, the second projections 6 define an internal ejection zone, which often leads to or prevents the tips of tissue or debris from entering the fingers of the main separation zone easily when the lower surface of the sheet material 2, Often due to the vacuum in the cutting table 1, it could not be separated from the cutting surface 1A.
    [0094] Optionally, zones of flexible material 7 (for example, thermoplastic elastomer) are preferably overinjected, between the projections 5, 6, in the lower part of the comb 4.
    [0096] This design of the projections 5, 6 is even more useful in machines that cut and feed simultaneously, since the depression of the cutting table 1 is higher, even when it is advanced, because otherwise it would not be able to cut with quality the material that was forced it must be compressed by the vacuum of the cutting table 1, so that it is fixed at the time of cutting.
    [0098] It should be noted that the length and / or the inclination of the projections 5, 6 can be varied in the different areas of the table, being especially useful at the ends where there are often more seals due to debris.
    [0099] In these areas, the fact that the brushes deteriorate earlier is less critical, since they are spaces for the alignment of the cut material, extremes where a brush change is required with a different frequency than in the interior areas.
    [0101] In addition, this help to avoid clogging can help reduce high cost breakdowns and machine uptime for avoidable repairs.
    [0103] Furthermore, the projections 5, 6 of the comb 4 are mounted on a support 8, which comprises, behind the area where the projections 5, 6 are arranged, a longitudinal link 9 or weakened area of rupture 10, which acts as a mechanical fuse .
    [0105] The hinge 9 allows rotation and opening of the area of the projections 5, 6 when the material has entered between the projections 5, 6 in the main separation zone and in the internal ejection zone, and the cutting surface.
    [0107] This opening prevents breakage and allows the same part to be reassembled without any maintenance operator. In the case of weakened area 10, it requires changing the part, but the cost per unit is less than the cost caused by a breakdown of the cutting machine.
    [0109] The joint 9 and the weakened area 10 allow an adjustment of the clamping force and, therefore, of opening or breaking. In the case of the joint 9, this force can be adapted to the different materials 2 that are cut. In the case of the weakened area 10, this force can be adapted to the different materials 2 that are cut with different interchangeable combs.
    [0111] For its usefulness, a sensor 11 is included that when the comb 4 opens or breaks detects it, the machine stops and warns with an alarm, so the operator can remove the material and reposition or change the comb 4, Continuing operation without wasting too much time or causing any breakdown. Often material 2 can be reused as it has not jammed or degraded as it currently does. Said sensor 11 can be a single sensor, detecting the entire length of the comb 4, individual for the comb module, or individual located for each projection 5, 6.
    [0113] Although reference has been made to a specific embodiment of the invention, it is evident to a person skilled in the art that the described cutting machine is susceptible to numerous variations and modifications, and that all the mentioned details can be replaced by others technically. equivalent, without departing from the scope of protection defined by the appended claims.
    [0114] Ċ
    权利要求:
    Claims (9)
    [1]
    1. Cut sheet material extraction system for sheet material cutting machines, comprising:
    a cutting table (1) on which the sheet material (2) to be cut is placed, said cutting table (1) being formed by a cutting surface (1A), which is formed by a plurality of brush blocks ( 3), the brush blocks (3) comprising a plurality of bristles, said cutting surface (1A) moving as the sheet material is cut, and
    Modular combs (4) for extraction of the cut sheet material provided with a plurality of projections (5, 6) and placed on one of the edges of said cutting table (1), defining a proximal end closest to the edge of the table cutting edge (1) and a distal end farthest from the edge of the cutting table (1), the distal end of the projections (5, 6) of each comb (4) being inserted between the bristles of the brush blocks (3 ), characterized in that the extraction comb (4) comprises first projections (5) and second projections (6), the distal end of the first projections (5) being further away from the edge of the cutting table (1) than the distal end of the second protrusions (6).
    [2]
    2. Cut sheet material extraction system for sheet material cutting machines according to claim 1, wherein the comb (4) comprises a longitudinal joint (9)
    [3]
    3. Cut sheet material extraction system for sheet material cutting machines according to claim 2, wherein said longitudinal joint (9) has an adjustable opening force.
    [4]
    4. Cut sheet material extraction system for sheet material cutting machines according to claim 1, wherein the first and second projections (5, 6) comprise a weakened area (10) narrower than the rest of the projection (5, 6) at its proximal end.
    [5]
    5. Extraction system for cut sheet materials for sheet material cutting machines according to claim 2 or 4, in which the comb (4) comprises a sensor (11) that detects the state of said weakened area (10) and / or of said longitudinal joint (9).
    [6]
    6. Cut sheet material extraction system for sheet material cutting machines according to claim 1, wherein the first projections (5) are longer than the second projections (6).
    [7]
    7. Cut sheet material extraction system for sheet material cutting machines according to claim 1 or 6, in which the first projections (5) are less inclined with respect to the edge of the cutting table (1) than the outgoing seconds (6).
    [8]
    8. Cut sheet material extraction system for sheet material cutting machines according to claim 1, in which the comb (4) comprises a zone of flexible material (7) between the projections (5, 6) of the comb (4).
    [9]
    9. Extraction system for cut sheet materials for sheet material cutting machines according to claim 4, wherein said area of flexible material (7) is made of elastomeric plastic.
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    同族专利:
    公开号 | 公开日
    US20200156280A1|2020-05-21|
    ES2762048R1|2020-05-27|
    EP3656516B1|2021-07-21|
    CN111195936A|2020-05-26|
    PL3656516T3|2021-12-20|
    MA51345A|2021-04-07|
    EP3656516A1|2020-05-27|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR1422334A|1964-11-13|1965-12-24|Aciers Sandvik|Improvement of combs for moving walkways and similar conveyor devices|
    FR2438607B1|1978-10-12|1982-06-25|Cidelcem|
    US4572357A|1984-01-26|1986-02-25|Gerber Garment Technology, Inc.|Sheet material conveyor with unloading apparatus|
    US5228554A|1991-09-20|1993-07-20|Gerber Garment Technology, Inc.|Material take-off ramp and system for a conveyor cutter bed and method of use|
    NL9201813A|1992-10-19|1994-05-16|Mcc Nederland|Comb-shaped member for receiving products supplied by a conveyor mat.|
    US6138819A|1997-06-11|2000-10-31|The Laitram Corporation|Article transfer assemblies for conveyor belts|
    DE10037172B4|2000-07-31|2007-10-04|Otis Elevator Co., Farmington|Comb plate for passenger conveyors|
    EP1541747B1|2002-07-11|2008-09-10|Shima Seiki Mfg., Ltd|Cutting machine with structure of brush mount for cutting table|
    JP6207391B2|2013-12-27|2017-10-04|株式会社島精機製作所|Cutting guide for cutting machine|
    法律状态:
    2019-08-01| PC2A| Transfer of patent|Owner name: OPEN MIND VENTURES, S.L.U. Effective date: 20190726 |
    2020-05-21| BA2A| Patent application published|Ref document number: 2762048 Country of ref document: ES Kind code of ref document: A2 Effective date: 20200521 |
    2020-05-27| EC2A| Search report published|Ref document number: 2762048 Country of ref document: ES Kind code of ref document: R1 Effective date: 20200520 |
    2021-07-16| FC2A| Grant refused|Effective date: 20210712 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201831115A|ES2762048R1|2018-11-19|2018-11-19|Cut sheet material extraction system for flexible sheet material cutting machines|ES201831115A| ES2762048R1|2018-11-19|2018-11-19|Cut sheet material extraction system for flexible sheet material cutting machines|
    PL19383002T| PL3656516T3|2018-11-19|2019-11-14|System for extracting cut laminar materials for cutting machines of flexible laminar materials|
    MA051345A| MA51345A|2018-11-19|2019-11-14|CUT LAMINARY MATERIAL EXTRACTION SYSTEM FOR SOFT LAMINARY MATERIAL CUTTING MACHINES|
    EP19383002.3A| EP3656516B1|2018-11-19|2019-11-14|System for extracting cut laminar materials for cutting machines of flexible laminar materials|
    US16/686,079| US20200156280A1|2018-11-19|2019-11-15|System for extracting cut laminar materials for cutting machines of flexible laminar materials|
    CN201911130011.0A| CN111195936A|2018-11-19|2019-11-18|System for extracting cut laminar material for flexible laminar material cutting machine|
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