• 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:
    A method of reducing the heat loss of a workpiece as it moves from a furnace to a tool comprises: the workpiece resting on a carrier (1) for the surface of the tool. According to the invention, the surface with the workpiece and the carrier (1) is located inside a box with a heater-like inside. At the tool, the workpiece is exposed. According to the invention, a device for carrying out the method has a box (5) with a heater-like inside and a line pea conveyor (3) for inserting and removing the carrier and the workpiece into and out of the box (5), respectively. Fig. 1
    公开号:SE1100415A1
    申请号:SE1100415
    申请日:2011-05-24
    公开日:2012-11-25
    发明作者:Per-Arne Mattsson
    申请人:Automation Press And Tooling A P & T Ab；
    IPC主号:
    专利说明:

    In the said technique, it is important that the workpiece has the intended temperature when it ends up in the machining tool. Heat losses during the transfer from the furnace to the machining tool can be significant in that a workpiece made of sheet metal has a large surface area in relation to the mass which is heated. At the temperature levels that are relevant, a large part of the heat losses are caused by radiation. Despite this, the temperature loss can also be affected by the ambient temperature, variations in the moving time, drafts and similar factors. In order for the end result to have the required quality, it is necessary that the temperature of the workpiece, when it is placed in the machining tool, can be kept at the right level and within tight tolerances. The important thing, however, is that the workpiece does not cool more than from about 930 ° C down to about 800 ° C.
    OBJECTION OF THE PROBLEMS The object of the present invention is to invent the initially approximate method so that the loss of weaning during the movement of the workpiece from the oven to the machining tool is kept minimal and as far as possible without influence from the environment.
    The present invention relates to the device with the object of solving corresponding or analogous problems and, in addition, of providing a device which is simple and inexpensive to manufacture and inexpensive to operate.
    TROUBLESHOOTING The object underlying the invention is achieved with respect to the method if this is characterized in that the support device and the workpiece are brought to a position substantially internally in an enclosure with a warmer ter inside, that the enclosure and the support device with the workpiece are brought to the processing the workpiece is inserted into the machining tool.
    The object underlying the invention is achieved with respect to the device if it is core-marked by an enclosure with a warmer fl rectifying inside, the support device and the workpiece being movable to and from a position substantially internal to the enclosure and the enclosure together with the support device is from the oven to the machining tool.
    COMPILATION OF DRAWING FIGURES The invention will now be described in more detail with reference to the accompanying drawings. On these, fi g 1 shows in perspective the opening object in a position where the support device is located outside the enclosure; 2 g 2 the opening object in another position where the support device is located inside the enclosure; Fig. 3 is a perspective view of the enclosure included in the object of invention; and Fig. 4 is an end view of the enclosure according to fi g 3.
    PREFERRED EMBODIMENT From fi g 1 it appears that the object of the invention comprises a support device 1 with a number of elongate, spaced apart support members 2, which fi define a bearing surface for a workpiece not shown in the drawing. The support device 1 is movable as a rigid unit under the action of a first movement device 3, such as a line feeder or an industrial robot, from the position shown in Fig. 1 to the position shown in Fig. 2. Furthermore, the receptacle comprises a holder 4, which is connected to a moving device, a line feeder or an industrial robot, for moving the whole receptacle.
    Finally, the invention object comprises an enclosure 5, into which the support device 1 is insertable under the influence of the first movement device 3. The invention object may comprise a second movement device of the same or different type than those stated above, by means of which the enclosure 5 is too expandable. relative to the holder 4.
    When using the heating object to fl this is moved to the immediate vicinity of an oven, in which a workpiece is to be heated to a suitable temperature, usually of the order of 900 ° or more, typically about 930 ° C. The oven is opened, after which the carrier 1 is pushed into the oven for inserting the workpiece therein. Thereafter, the support device is retracted either by retracting the support device to the position shown in fi g 2 or by moving the entire object of movement. Height movements can also be relevant, especially if the oven has fl your floors.
    When the workpiece has reached the right temperature, the support device is pushed back into the oven to remove the workpiece. In this case, the workpiece has a temperature of the order of 900 ° or more and due to a small material thickness it will cool down rapidly, initially by friend radiation and later, when the temperature has dropped, via convection.
    To reduce the effect of the environment on the workpiece, the support device 1 and the workpiece resting thereon are retractable in the enclosure 5 as shown in fi g 2. The position inside, or at least substantially internally, in the enclosure 5 means that the workpiece is shielded from the environment so that the ambient temperature drafts or similar factors do not or only to a negligible extent affect the workpiece.
    According to the invention, the enclosure 5 has its inner surfaces designed for high heater genom excitation by being ground, polished or coated with a heater fl ekterating coating, for example chromed. Of course, the confinement surfaces to the enclosure can also be formed in their entirety by a heat-ter-acting material, for example stainless steel, polished or chromed sheet metal.
    After the carrier 1 has been brought to the position shown in fi g 2, i.e. substantially inside the enclosure 5, the object or at least the carrier and the enclosure are moved to a position next to the machining tool where the carrier 1 is exposed so that the workpiece can be fitted in the machining tool. This can be done either directly with the support device or via some additional pre-surface device.
    The movement of the support device 1 and the enclosure 5 between the oven and the tool and vice versa can be achieved either via an industrial robot connected to the holder 4, line feeder or through a second movement device, which acts as a rigid unit for the support device and the enclosure when the support device is located inside it.
    In a process of this current type, one strives for as high a working speed as possible, ie fast accelerations, high average speeds and fast decelerations. For this reason, the moving masses should be kept as low as possible.
    According to the invention, the enclosure 5 comprises a framework 6 suitably consisting of square tubes. This framework 6 is covered with sheet metal panels 7 or panels of other heat-resistant and heat-fl acting material.
    The enclosure 5 further has in its distal end in Fig. 4 brackets 8 via which it can be fastened in the holder 4 or in a second movement device, not shown in the drawing, which connects the enclosure 5 to the holder 4. Optionally, the first movement device and the second movement device be designed as a common, possibly linear, movement device where the first movement device 2 has a larger range of motion than that which applies to the second movement device.
    Fig. 2 shows that the support device 1 has at its far end in the figure a coupling by means of which it is connected to the first movement device 3. Furthermore, the enclosure 5 has in its upper side an elongate opening 10 through which the components connecting the coupling 9 to the first movement device 3.
    From especially fi g 3 and 4 it appears that the enclosure 5 consists of an upper part 11 and a lower part 12 which are connected by means of a number of couplings 13. Hereby the lower part 12 can be separated from the upper part 11 and possibly replaced by a different one. dimensioned lower part, which may be necessary depending on the appearance of the support device 1 and the workpiece to be handled. However, the main reason why the enclosure 5 is openable is that it may need to be cleaned internally to maintain its good, reflective ability. Correspondingly, the support device 1 is connected to the first movement device 3 via a quick coupling.
    The function of the heating object and especially of the enclosure 5 is based on the idea that heat radiating from a workpiece inside the enclosure should strike the heater-ect interior surfaces thereof to be directed back towards the workpiece. Practical measurements have shown that the temperature loss of a workpiece can be reduced by as much as 80-90 ° C in a typical press hardening line or in a typical press hardening process.
    Optionally, the effect of the enclosure 5 can be further improved if it is provided with a thermal insulation, but not a heavy one, since in such a case the mass would increase and the working rate decrease.
    权利要求:
    Claims (10)
    [1]
    A method of reducing the heat loss of a heated workpiece when it is transferred from an oven to a machining tool, comprising the steps of: removing the workpiece from the oven and placing it on a support device (1) for the machining tool into which it is inserted, characterized therefrom , that the support device (1) and the workpiece are brought to a position substantially internally in an enclosure (5) with a warmer fl actinating inside, that the enclosure and the support device with the workpiece are fed to the machining tool, where the support device is exposed and the workpiece is inserted into the machining tool .
    [2]
    Method according to Claim 1, characterized in that the support device (1) is inserted into the furnace for removal of the workpiece.
    [3]
    Method according to Claim 1 or 2, characterized in that the support device (1) is transferred into and out of the oven and into the interior of the enclosure by means of a first movement device (3).
    [4]
    Method according to one of Claims 1 to 3, characterized in that the support device (1) and the enclosure (5) for fl are moved together between the furnace and the machining tool and vice versa by means of at least one second movement device.
    [5]
    Method according to Claim 3 or 4, characterized in that the first movement device (3) moves through an elongate opening (10) in the upper side of the enclosure (5).
    [6]
    Device for reducing the heat loss of a heated workpiece, when this is by means of a support device (1) for fl transferred from an oven to a machining tool, characterized by an enclosure (5) with a friendlier fl rectifying inside, wherein the support device (1) and the workpiece are insertable to and from a position substantially internally in the enclosure and the enclosure together with the support device is removable from the oven to the machining tool and vice versa. 10 15
    [7]
    Device according to claim 6, characterized in that the support device (1) is connected to a first movement device (3), which is configured to move the support device into and out of the oven for insertion and removal of a workpiece, respectively.
    [8]
    Device according to claim 7, characterized in that the first movement device (3) is also configured to guide the support device (1) into and out of the enclosure (5), respectively.
    [9]
    Device according to one of Claims 7 or 8, characterized in that at least one second movement device is configured to jointly surface the support device (1) and the enclosure (5) between the furnace and the support working tool and vice versa.
    [10]
    Device according to one of Claims 6 to 9, characterized in that the heater ter exterior of the enclosure (5) is provided by grinding, polishing or coating with a heater fl echoing surface layer.
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    同族专利:
    公开号 | 公开日
    JP2014519589A|2014-08-14|
    EP2715263A4|2014-12-10|
    MX345991B|2017-03-01|
    US9193541B2|2015-11-24|
    ES2715839T3|2019-06-06|
    PL2715263T3|2019-09-30|
    CN103842758B|2016-06-08|
    SE535815C2|2013-01-02|
    MX2013013654A|2014-08-01|
    CN103842758A|2014-06-04|
    US20140199137A1|2014-07-17|
    PT2715263T|2019-03-27|
    TR201904276T4|2019-04-22|
    EP2715263B1|2018-12-26|
    EP2715263A1|2014-04-09|
    CA2834768A1|2012-11-29|
    JP6104238B2|2017-03-29|
    CA2834768C|2019-02-26|
    HUE043013T2|2019-07-29|
    WO2012161636A1|2012-11-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1100415A|SE535815C2|2011-05-24|2011-05-24|Method and apparatus for reducing the heat loss of a heated workpiece|SE1100415A| SE535815C2|2011-05-24|2011-05-24|Method and apparatus for reducing the heat loss of a heated workpiece|
    PT12790293T| PT2715263T|2011-05-24|2012-05-22|A method and an apparatus for reducing the heat loss in a heated workpiece|
    EP12790293.0A| EP2715263B1|2011-05-24|2012-05-22|A method and an apparatus for reducing the heat loss in a heated workpiece|
    JP2014512793A| JP6104238B2|2011-05-24|2012-05-22|Method and apparatus for reducing heat loss of a heated workpiece|
    MX2013013654A| MX345991B|2011-05-24|2012-05-22|A method and an apparatus for reducing the heat loss in a heated workpiece.|
    PCT/SE2012/000080| WO2012161636A1|2011-05-24|2012-05-22|A method and an apparatus for reducing the heat loss in a heated workpiece|
    PL12790293T| PL2715263T3|2011-05-24|2012-05-22|A method and an apparatus for reducing the heat loss in a heated workpiece|
    TR2019/04276T| TR201904276T4|2011-05-24|2012-05-22|A METHOD AND APPARATUS FOR REDUCING HEAT LOSS IN A HEATED WORKPIECE.|
    HUE12790293A| HUE043013T2|2011-05-24|2012-05-22|A method and an apparatus for reducing the heat loss in a heated workpiece|
    CA2834768A| CA2834768C|2011-05-24|2012-05-22|A method and an apparatus for reducing the heat loss in a heated workpiece|
    US14/119,453| US9193541B2|2011-05-24|2012-05-22|Method and an apparatus for reducing the heat loss in a heated workpiece|
    ES12790293T| ES2715839T3|2011-05-24|2012-05-22|A method and apparatus for reducing heat loss in a heated workpiece|
    CN201280024824.1A| CN103842758B|2011-05-24|2012-05-22|For reducing the method and apparatus of the heat loss in heated parts|
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