• 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:
    Packaging cutting matrix; comprising a matrix plate (1) and a punch plate and knives (2) that allow relative displacement between an inoperative or opening position in which the knives (3) and the punches (4) remain distanced from the matrix plate (1), and an operative closing position in which the knives (3) and the punches (4) make cuts and/or pre-cuts in the packages in combination with the matrix plate (1). The knives (3) have a body (31) of non-circular section housed tightly, and fixed by means of a clamping element (5), in a housing (21) of the plate (2) of formal matching section and dimensionally with the body section (31) of the knives (3), and in which the leading end (32) of the knives protrudes a distance less than 10 millimeters from the punch and knife holder plate (2). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2730121A1
    申请号:ES201830444
    申请日:2018-05-07
    公开日:2019-11-08
    发明作者:Roman Olle；Manuel Gonzalez
    申请人:Industrias Tecnologicas de Mecanizacion y Automatizacion SA；
    IPC主号:
    专利说明:

    [0001]
    [0002] Packaging cutting matrix.
    [0003]
    [0004] Object of the invention.
    [0005]
    [0006] The object of the present invention is a container cutting matrix, which has characteristics suitable for cutting plastic materials such as PLA, PET, PP and other complex sheets of different structures and thicknesses, especially applicable in the manufacture of containers for food use; with guidance and forms of punches, punches and blades with light less than 10 millimeters
    [0007]
    [0008] Field of application of the invention.
    [0009]
    [0010] This invention is applicable in packaging cutting machines and preferably, but not limited to, packaging intended for the food industry.
    [0011]
    [0012] State of the art
    [0013]
    [0014] In the manufacture of packaging and in particular of packaging for the food industry, it is usual to use cutting dies provided with a matrix plate and a punch and knife holder plate, which allows relative displacement relative to the matrix plate between: an inoperative position or opening, and an operative closing position in which the knives and punches make the cutting and / or pre-cutting of the packaging material.
    [0015]
    [0016] In the matrices currently used to perform these cutting operations, the advance of the knives with respect to the punch and knife holder plate is 20 to 25 millimeters .; with this length and since the section of the knives is smaller than that of the punches, said knives are very sensitive to the lateral forces produced during the cutting or pre-cutting operations of the packages, so there is a risk of interference of the knives with the matrix plate during its advance towards the closed position, which causes an accelerated deterioration of the cutting edge of the knives and a low quality of the cut made by said knives.
    [0017]
    [0018] In this regard, it is worth mentioning that the deterioration of the knife edge causes irregular filaments and edges to occur in the areas of the container cut, which are the main concerns of the manufacturers and consumers of packaged products.
    [0019]
    [0020] Therefore, the technical problem that arises is the introduction in these cutting matrices of some improvements, in what refers to the knives, that allow to solve in a satisfactory way the problematic exposed previously.
    [0021]
    [0022] Description of the invention
    [0023]
    [0024] The cutting die object of the present invention, comprising a die plate and a punch plate and knives, has improved characteristics as regards the knives of the punch holder plate, aimed at preventing the bending of the cutting knives and possible interference with the matrix plate; and consequently to increase the duration and precision of cutting.
    [0025]
    [0026] Another object of the invention is to provide the knives with a shape that ensures better guidance and, above all, perfect accommodation in the punch plate and knives.
    [0027]
    [0028] Another object of the invention is to increase the life and reliability of the precuts made by the knives in the packages.
    [0029]
    [0030] To achieve the proposed objectives, the cutting knives have a non-circular section body housed tightly and fixed in a housing of a section that coincides formally and dimensionally with the knife body section; so that the front end of the knives protrudes a distance less than 10 millimeters from the punch and knife holder plate.
    [0031]
    [0032] The advance of the knives in a distance less than 10 millimeters, instead of the 20 to 25 millimeters observed in the existing matrices in the market, prevents Said knives can flex laterally due to the lateral forces that occur during the cutting or pre-cutting of the containers, thus avoiding the risk of interference of the knife edge with the matrix plate, which guarantees a very long life of the knives and a much higher quality of the package or cut product.
    [0033]
    [0034] According to the invention, the housing of the punch and knife carrier plate and the body of the knives have a rectangular section, ensuring a better guidance and above all a perfect accommodation of the knives by performing at the same time and in the same machine the plate holder punches and knives other machining for columns and fixings of the plate holder punches and knives.
    [0035]
    [0036] The aforementioned rectangular section of the knives and of the housings of the punch and knife holder plate provides very high precision in the positioning of the knives.
    [0037]
    [0038] The use of specific metal carbide has also been provided for in this invention in order to increase the life and reliability of the pre-cut of the packages, which constitutes a very important parameter for the subsequent separation of the packages in the case of manufacturing product packs, for example, yogurt.
    [0039]
    [0040] Description of the figures.
    [0041]
    [0042] To complement the description that is being made and in order to facilitate the understanding of the characteristics of the invention, a set of drawings is attached to the present specification in which, for illustrative and non-limiting purposes, the following has been represented:
    [0043]
    [0044] - Figure 1 shows a schematic elevation view of a container cutting matrix, according to the invention, in an inoperative opening position.
    [0045]
    [0046] - Figure 2 shows a view analogous to the previous one, in which the die has been represented in an operative cutting position.
    [0047]
    [0048] - Figure 3 shows an elevation view of an embodiment of the plate it carries punches and knives partially sectioned by one of the housings of one of the knives, and in which the corresponding knife exploded and aligned with said housing has been represented.
    [0049]
    [0050] - Figure 4 shows a view analogous to the previous one in which the knife is shown mounted in the corresponding housing of the punch and knife holder plate.
    [0051]
    [0052] Preferred embodiment of the invention.
    [0053]
    [0054] As can be seen in Figures 1 and 2, the cutting die for packages comprises a die plate (1) and a punch plate and knives (2) that allow relative displacement between an inoperative or opening position, shown in Figure 1. , in which the knives (3) and the punches (4) of the plate (2) remain distanced from the matrix plate (1), and an operative closing position, shown in Figure 2, in which the knives ( 3) and the punches (4) make in combination with the matrix plate (1) cuts and / or pre-cuts in the packages (not shown) previously positioned on the matrix plate (1).
    [0055]
    [0056] In figures 3 and 4 it can be seen that the knives (3) have a body (31) of non-circular section, in this particular case of rectangular section, housed tightly and fixed with the possibility of extraction in a housing (21) of the punch and knife holder plate (2) so that in the mounting position, shown in figures 1 and 4, the front end (32) of the knives (3) protrudes a distance less than 10 millimeters from the punch holder plate and knives (2).
    [0057]
    [0058] In a preferred embodiment, the aforementioned front end (32) of the knives (3) protrudes 7 millimeters from the punch and knife holder plate (2), this length being sufficient to ensure proper operation of the die, by cutting or precutting the container material and avoid the bending or lateral deviation of the knives, and the deterioration of its cutting edge, due to the lateral forces produced during the cutting or pre-cutting of the packages.
    [0059]
    [0060] In the embodiment shown in the figures, and as can be seen more clearly in the exploded view of Figure 3, the knives (3) are fixed by their rear end by means of a removable clamping element (5), represented by a thyme that passes through a spacer (51) and is threaded onto the rear end of the corresponding knife (3).
    [0061]
    [0062] The mounting of the clamping element or screw (5) and the separator element is carried out by the upper part of the punch and knife holder plate (2) by contacting said separator (51) frontally against a stop step defined in said carrier plate punches and knives (2).
    [0063]
    [0064] In this specific embodiment, the knives (3) are made of high mechanical strength metal carbide in order to guarantee the durability of the cutting edge.
    [0065]
    [0066] Once the nature of the invention has been sufficiently described, as well as a preferred embodiment, it is stated for the appropriate purposes that the materials, shape, size and arrangement of the described elements may be modified, provided that this does not imply an alteration. of the essential features of the invention that are claimed below.
    权利要求:
    Claims (3)
    [1]
    1. - Packaging cutting matrix; comprising a matrix plate (1) and a punch plate and knives (2) that allow relative displacement between an inoperative or opening position in which the knives (3) and the punches (4) of the punch and knife holder plate (2) they remain distanced from the matrix plate (1), and an operative closing position in which the knives (3) and the punches (4) make cuts and / or precuts in combination with the matrix plate (1) in the containers; characterized in that the knives (3) have a body (31) of non-circular section housed tightly, and fixed by means of a clamping element (5), in a housing (21) of the plate (2) of matching section formally and dimensionally with the section of the body (31) of the knives (3), and in which the front end (32) of the knives (3) protrudes a distance less than 10 millimeters from the plate holder punches and knives (2 ).
    [2]
    2. - Matrix according to claim 1, characterized in that the housing (21) of the punch and knife holder plate (2) and the body (31) of the knives (3) have a rectangular section.
    [3]
    3. - Matrix according to claim 1, characterized in that the knives (3) are made of a metal carbide of high mechanical strength.
    类似技术:
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    ES2079807T3|1996-01-16|PACKAGING, ESPECIALLY FOR PRINTER.
    同族专利:
    公开号 | 公开日
    DK3566834T3|2021-05-25|
    ES2876975T3|2021-11-15|
    PL3566834T3|2021-08-09|
    EP3566834A1|2019-11-13|
    ES2730121B2|2021-03-18|
    EP3566834B1|2021-04-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2697462A1|1992-11-04|1994-05-06|Multivac France|Cutter for rigid plastics films - has support bar containing prismatic shaped blade|
    DE19521604C1|1995-06-14|1997-04-17|Wachsmuth & Co Werkzeugbau|Blades adjusting device for multi-compartment stamping installation|
    DE19929477A1|1999-06-26|2000-12-28|Walter Engels|Cutting knife has facet facing flank, basic body to which is fixed cutting strip with cutting section and edge, insertion end, groove and thrust piece|
    EP1649989A1|2004-10-22|2006-04-26|G. WACHSMUTH & CO. WERKZEUGBAU GmbH|Apparatus for cutting out one or more cups out of a plastic web|
    FR2661341B2|1988-09-13|1994-09-09|Pignon Guy|DEVICE FOR FIXING ELEMENTS OF PRESS TOOLS IN THEIR SUPPORT.|
    FR2636256B1|1988-09-13|1994-07-08|Pignon Guy|DEVICE FOR FIXING ELEMENTS OF PRESS TOOLS IN THEIR SUPPORT|
    DE4304951C2|1993-02-18|1997-09-11|Wachsmuth & Co Werkzeugbau|Tool for punching single and multiple containers made of plastic film|
    FR3022818B1|2014-06-30|2016-06-03|Sogameca Sas|IMPROVEMENT TO TOOLS FOR GROOVED MATRIX CUTTING OF MULTIPLE OBJECTS IN SHEET MATERIAL|
    法律状态:
    2019-11-08| BA2A| Patent application published|Ref document number: 2730121 Country of ref document: ES Kind code of ref document: A1 Effective date: 20191108 |
    2021-03-18| FG2A| Definitive protection|Ref document number: 2730121 Country of ref document: ES Kind code of ref document: B2 Effective date: 20210318 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201830444A|ES2730121B2|2018-05-07|2018-05-07|PACKAGING CUTTING MATRIX|ES201830444A| ES2730121B2|2018-05-07|2018-05-07|PACKAGING CUTTING MATRIX|
    EP19000208.9A| EP3566834B1|2018-05-07|2019-04-30|Container cutting die|
    DK19000208.9T| DK3566834T3|2018-05-07|2019-04-30|CONTAINER CUTTING MATRIX|
    PL19000208T| PL3566834T3|2018-05-07|2019-04-30|Container cutting die|
    ES19000208T| ES2876975T3|2018-05-07|2019-04-30|Container die|
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