• 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:
    The stages of the method which are to be carried out manually are extremely simplified and the degree of utilisation of the blank prior to cutting can be determined objectively and weighed up against the subjective feeling of the suitable selection of the structure. When cutting patterned materials, it is also guaranteed that the pattern on the part to be cut out has been selected in a simple manner in such a way that, in the finished part, for example an item of clothing, a uniform transition is ensured between the different individual parts. …<IMAGE>…
    公开号:SU1713413A3
    申请号:SU874202992
    申请日:1987-07-23
    公开日:1992-02-15
    发明作者:Брудер Вольфганг；Бирверт Клаус
    申请人:Дюркопп Зюстемтехник Гмбх (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to light industry and simplifies layouts while reducing the time to cut.
    A known method of cutting material, for example, when cutting animal skins, in which pre-prepared templates are superimposed on an animal skin spread out on a cutting table in accordance with the desired cutting and are aligned with all defective places and structural data manually. Then the contours of the patterns are outlined on the skin and cut out in shape, or the cutting is carried out directly using a hand knife held along the patterns.
    This method requires a lot of time, in particular, because smaller templates for ergonomic reasons can be positioned only in the center of the animal skin, whose dimensions reach 3 X 3 m. In addition, the degree of use, i.e. the ratio of the surface of the cut to the surface of the animal skin can only be determined subjectively and, therefore, strongly depends on the experience of the cutting personnel.
    In the same way, fabrics or other creased materials can be cut. When working with material with a nesting pattern, it is also difficult for those. that the overlaid pattern closes the i / docking pattern
    parts complicated. In this case, the utilization rate is low due to multiple alignment and pattern processing.
    Cutting 3D templates takes a lot of time and is extremely expensive. If, in addition, the material to be cut has irregular spatial stretching, variation upon imposition of patterns is almost impossible. Increasing the degree of use is possible only by making new templates or by drawing contours by hand.
    There is also known a method for cutting leather with punching dies. After overlapping and positioning the contour of the part to be cut out by applying force to the dies, the corresponding parts are stamped out of animal skin.
    The method is complicated alignment of parts. In addition, along with the weight of the stamp, which makes it difficult to handle the stamp, it is possible that the skin will not be damaged by sharp edges. In the method, the degree of use can only be determined subjectively.
    The aim of the invention is to simplify the implementation of the layout while reducing the time for cutting and objective determination of the degree of use.
    FIG. 1 shows a cutting table schematically: in FIG. 2 - projection table; in fig. 3 - cutting table, top view; in fig. 4 - projection-table, top view; in fig. 5 shows the layout of the cutting table, electronic projector and monitor.
    Consider cutting the material, in particular, animal skins. Note that the technology of cutting material with spatial stretching is identical.
    The cutting table (Fig. 1) consists of a platform 1 on which the zoo skin 2 is spread and which can be placed in the cutting area of a coordinate cutting machine (not shown) using a sietema exchange (not shown), for example, a cutting knife, laser or water jet. A mirror 3 is located above platform 1, which is aligned with respect to prism 4 of the projection device (Fig. 2). The projection device consists of a light source 8, a Fresnel lens located above it, which serves as a reference surface for the light-transmitting analog-digital conversion device 6, and an objective 5. The analog-digital conversion device 6 is reduced compared to platform 1 in the ratio
    1: 5. For the material being cut, the templates are made to scale 1:15, the layout of the templates is carried out on the light table of the projection device and using the lens 5 and the reflecting devices 4 and 3 the templates are projected on the animal skin 2 in full size (Fig. 3 and 4), which is provided with an appropriate arrangement of the lens 5 on the projection table. It is desirable to use cut-out patterns, because in this case only their contours are displayed on the animal skin. Through prism 4, an accurate projection of the templates onto the expanded material, i.e. the offset on the analog-to-digital conversion device causes a change in the position of the projected pattern contour.
    The selection of templates and their positioning is carried out taking into account defects of the skin 2 or its structural data by manually positioning the templates by the operator.
    After arranging the templates, the position and contour of each individual template are recorded using an analog-to-digital conversion device 6 and a memory. are connected to an analog-to-digital conversion device 6 computing device (not shown).
    The analog-digital conversion device 6 consists of a glass plate, c. which is located network of electrical conductors. Using a reader (not shown), such as a stylus, which can induce a magnetic field and pass along a glass plate along the laid out patterns, field changes on the conductors can be detected. These field changes are matched with the node point respectively, so that the pattern contour is transmitted to the computing device using the x and y coordinates. The required contour accuracy in accordance with the analog-digital conversion determines the raster distance of the network of conductors. The principal design of such an analog-digital conversion device is well known and therefore does not require a detailed description. However, it is important that the light transmission of the glass plate should be chosen very high in order to obtain a high contrast of the projected contours. Based on the registered contours in the computing device, the total surface of the overlaid patterns is calculated and converted in relation to the surface of the animal skin. The coefficient of use thus determined is communicated in the proper form to the operator. The calculation of the surface of the animal skin can be carried out in the same way as the surface of the templates using a light-transmitting analog-digital conversion device, which is located on the cutting table. However, in most cases this is unnecessary, since a large part of the total surface is determined by tanneries, which is inscribed or engraved on the skin, so that the corresponding numerical value can be directly entered into the computing device. If the utilization rate obtained is too low, i.e. the trim is too large, start again with the selection and layout of the templates. With an acceptable degree of use, which depends on the quality of the animal skin and the requirements for the finished product, the automatic cutting device, which is also connected to the computing device, receives a start command manually or automatically, and the cutting is performed automatically along the specified cutting lines patterns. using the contours accumulated in the computing device, converted from analog values to digital ones.
    Control of the automatic cutting machine can be carried out by permanent mounting in a computer or by using a proper machine program.
    Another possibility to optimize the cutting is to directly introduce the contours of the sample to be cut into the computing device and accumulate, which can also be carried out using hard electrical installation or an appropriate machine program.
    In this case, the newly reduced at the appropriate scale templates must be encoded so that they can be identified on the projection table for the computing device and their position determined. To determine the position, the markers sufficiently located in a certain place are sufficient, which, for example, can be recorded using a transmitting analog-to-digital conversion device 6. The identification can be carried out, for example, using bar coding, which is interrogated using a light pen.
    The state of the art knows a wide variety of machine-readable coding, and
    their subsequent decoding, which could be used in this case.
    It would also be acceptable to place an electronic camera over the support surface of the projection table, which is connected to the computing device and performs the identification and positioning of the templates. Another technologist, starting from positioning to cutting, is as described above.
    If the computing device is connected to a graphics monitor 13 suitable for drawing graphs and a high-speed electronic projector 9, which is manufactured, for example, by Hughes Eakraft under the name Graphic Projector 700, and with the help of a numerical control software device with a cutting installation (Fig. 5), it can be implemented another method in accordance with the invention to optimize cutting materials.
    The individual contours of the parts to be cut are entered into the computing device and accumulated. A specific code is assigned to each contour, so that they can be interrogated separately and in all combinations are sequentially displayed on the monitor 14. The electronic projector 19 projects an image identical to the display of the monitor and arranges in such a way that this projection in the original size of the cut out parts falls on the existing on the platform 1 material to be cut.
    The operator now selects the various contours, which appear on both the monitor 13 and the material to be cut 2, in this case as a visible image. In accordance with the defective places and structural data of the material being cut, the individual contours are shifted using, for example, the control knob or the cursor of the reading device 10. It is important that each contour is controlled separately, and the position of the other contours does not change. . In addition, it is necessary to ensure that each displayed contour can be erased and replaced with a new one, without affecting the other displayed contours. Corresponding electrical connections or corresponding machine programs have been known and have been used for a long time in so-called telegames.
    When the optimal number of circuits is positioned on the monitor 13 or the material to be cut 2, their respective code and position is reported to the computing device. With the help of appropriate electrical connections or a computer program, the computing device can automatically perform identification and position determination. Of all the contours, the total surface of the cut is calculated and translated into relation to the surface of the material being cut 2. The coefficient of utilization calculated in this way is again reported in proper form to the operator and, at an acceptable value, the cutting automatic installation (not shown), which is also connected to the computing device, is given the start command and the cutting is performed automatically along the 9 lines previously cut by the projector. If the computing device automatically performs the identification and positioning of individual circuits, then the utilization rate can be continuously determined and thus optimized even faster.
    It is also possible to use a laser scanning system instead of a high-power electronic projector 9. In this case, due to the insignificant speed of the deviation of the mechanical scanning system, it may be necessary to display not the entire image on the monitor, but only the private zones selected by the operator.
    In order to carry out all the described methods according to the invention, it is preferable if, as shown in FIG. 5, in addition to the corresponding projection device, a reflector 11 equipped with a light source is placed opposite the operator’s console at the side of the cutting table, the light intensity of which is approximately 600 liters, so that the light sent by it at an angle ai less than 30 ° hits the material to be cut and
    The operator's console is installed in such a way that the angle of view of the operator's operator on the material being cut is approximately the same. Due to lateral illumination, the defective areas of the surface of the animal skin cast a shadow in the direction of the operator. Since the shadow area is larger than the area of the defect, it is much easier to identify.
    Besides. The operator has a good overview of the material to be cut 2 and can, in combination with the latter method according to the invention, perform positioning without observing the image on the monitor.
    权利要求:
    Claims (1)
    [1]
    The invention The method of cutting materials, in which lay out the patterns, taking into account material defects, determine the degree
    use of the material being cut out on the cutting table and cutting, characterized in that, in order to optimize the cutting by simplifying the
    layouts while reducing the time for cutting, reduce templates to a certain extent, lay out templates on the light table of the projection device and project the outlines of templates on the cutting table on the cutting table in full size, taking into account defects of the material to be cut out by manually positioning the templates on the light table, and to determine the degree of use of the material, the position and contour of each template is recorded using a light beam a trimming analog-digital conversion device, while cutting is performed automatically. Phag.Z FIG. 4 d
    g5
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1713413A3|1992-02-15|Method of pattern-cutting materials
    US4901359A|1990-02-13|Method and apparatus for automatically cutting material in standard patterns
    US4982437A|1991-01-01|Method of cutting an object as a function of particularities of said object
    US4739487A|1988-04-19|Method and apparatus for a reciprocating lay system of profile pieces on a base for the purpose of plotting and/or cutting
    CA1291249C|1991-10-22|Matching method and device for automatic cutting of patterned fabrics
    US5333111A|1994-07-26|Garment cutting system having computer assisted pattern alignment
    CN103674961B|2018-11-27|Appearance detection device, appearance inspection method and program
    US5388318A|1995-02-14|Method for defining a template for assembling a structure
    CA1210506A|1986-08-26|Fabric flaw related system
    US7259839B2|2007-08-21|Method and apparatus for examining a diamond
    US6434444B2|2002-08-13|Method and apparatus for transforming a part periphery to be cut from a patterned sheet material
    US20050288809A1|2005-12-29|System and method for producing medical devices
    US6856843B1|2005-02-15|Method and apparatus for displaying an image of a sheet material and cutting parts from the sheet material
    HUT74049A|1996-10-28|Method for treating of technical textile material and leather and apparatous thereof
    JP2908204B2|1999-06-21|Ten finger fingerprint card input device
    RU96119454A|1998-10-10|METHOD FOR ENTERING INFORMATION IN A COMPUTER
    WO1998018386A1|1998-05-07|Unit for measuring body parts and reconstructing them in three dimensions, particularly for manufacturing custom shoes or other prostheses
    EP0087944B1|1987-12-02|Method and apparatus for entering graphics
    JPS5958430A|1984-04-04|Automatic trimming layout method of print plate making
    JPH01165907A|1989-06-29|Method for measuring distortion of reflected image
    US4430797A|1984-02-14|Plotting device
    GB2385734A|2003-08-27|Method and apparatus for imaging, display and cutting of a sheet material
    US4428056A|1984-01-24|Plotting method and apparatus
    JPS6120041A|1986-01-28|Automatic trimming method of photochemical process
    JPS59195656A|1984-11-06|Automatic trimming layout system for printing plate making
    同族专利:
    公开号 | 公开日
    DK407687D0|1987-08-05|
    EP0256386A3|1989-05-10|
    ES2019346B3|1991-06-16|
    DK407687A|1988-02-07|
    US4941183A|1990-07-10|
    DE3627110C2|1989-08-10|
    AT59270T|1991-01-15|
    DD261385A5|1988-10-26|
    EP0256386A2|1988-02-24|
    EP0256386B1|1990-12-27|
    DE3627110A1|1988-02-18|
    JPS6347094A|1988-02-27|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19863627110|DE3627110C2|1986-08-06|1986-08-06|
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