• 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 invention relates to a temperature control device (300) for tempering a molding tool (200, 200 ') for plastics processing, wherein the temperature control device (300) comprises: a first temperature control circuit (301) for guiding at least one temperature control medium (313, 314) with a first temperature control circuit (301) Temperierkreis supply line (302) and a first Temperierkreis- return line (303) for connecting the first Temperierkreises (301) to the mold (200, 200 '), a first temperature control unit (305) for a first tempering medium (313), with the a second temperature control device (308) for a second temperature control medium (314), which is connectable to the first temperature control circuit (301), and a first switching device (311) for alternately connecting the first and the second temperature control device ( 305, 308) with the first temperature control circuit (301), wherein the temperature control device has a second changeover device (315) for connecting the second temperature control device (308) having a second temperature control circuit (316), wherein the second temperature control circuit (316) has a second temperature control supply line (317) and a second temperature control return line (318) for connecting the second temperature control circuit (316) to the molding tool (200, 200 ').
    公开号:AT516167A4
    申请号:T50134/2015
    申请日:2015-02-20
    公开日:2016-03-15
    发明作者:Michael Haselsteiner
    申请人:Zizala Lichtsysteme Gmbh；
    IPC主号:
    专利说明:

    Temperature control device for variothermic or conventional tempering of molds
    The invention relates to a tempering for tempering a mold for plastics processing, in particular a mold for a Spritzgußvor¬richtung, wherein in the mold at least one Temperiermedienkanal for Durchlei¬ten at least one tempering medium is provided, wherein the tempering iervorrichtungum includes: a first tempering circuit for guiding at least one Temperiermediums, miteiner first Temperierkreis supply line and a first Temperierkreis return line for connecting the first Temperierkreises to the mold, a first Temperier¬ device for a first tempering ier medium, the first Temperier device via a first temperature control unit supply line and a first Temperiergerät return line with the first tempering circuit is connectable, a second temperature control for a second Temperier¬medium, the second tempering device via a second Temperiergerät supply line and a second temperature control Return line to the first Temperierkreis connectable, and a first switching means for alternately connecting the first and the second temperature control with the first Temperierkreis, wherein alternately the first and the second tempering medium through the first Temperierkreis and at least one of the at least one tempering medium channels of the mold are feasible.
    In the injection molding of plastics usually tempered molds are used, which are tempered depending on the plastic material and method to a predetermined Tempe¬rature. For this purpose, molds are commonly used, the üblicher¬weise from two halves, which form a cavity, are composed. The hot plastic melt is injected into this cavity, cooled in the mold and solidifies. To temper the mold, in the immediate vicinity of the cavity, tempering channels are formed, which are passed through by tempering media. The tempering media are typically liquid, e.g. Water or oil. The temperature of the mold has a significant effect on the cycle time.
    Known methods for controlling the temperature of molds include conventional temperature control and variothermal temperature control.
    In the case of conventional tempering, tempering of the molding tool takes place with one or more tempering devices at a constant (setpoint) temperature within one cycle and over successive cycles. In the steady state, heat must be dissipated so that the mold does not heat up due to the injection of liquid plastic (i.e., tempering with cooling effect). In production, the cycle time depends significantly on the cooling of the mold, i. the cycle time decreases with the efficiency of the cooling. Conventional tempering / cooling is easily adjustable, characterized by ease of handling and short cycle times (i.e., no downtime for mold heating and cooling), and has proven particularly useful in thin walled castings. However, it has the disadvantage of being unfavorable to thick-walled castings or castings having complex geometries or minimum dimensions and resulting in undesirable quality losses, e.g. by undesired premature solidification / cooling during the injection molding process when the hot plastic melt encounters a relatively cool die surface in the injection phase.
    This problem of conventional tempering can be circumvented by a variothermal tempering of the mold. Variotherm tempering methods have been known for a long time and are frequently used in practice. In the fluid-fluid method, alternating hot and cold tempering medium is passed through the cavity-near Tempe¬rierkanäle of the mold to increase the temperature of the mold within a cycle quickly and can lower. The injection of the plastic melt takes place at a high temperature of the mold, whereas in the cooling phase of the tempering cycle of the mold, the melt solidifies and after opening the mold, the casting is removed.
    For variothermal tempering of molds for injection molding machines, tempering devices with two tempering devices have proven successful, one of which operates at high and one at low temperature, alternating hot and cold tempering medium being passed through the temperature control channels of the molding tool by means of a switching device.
    An initially mentioned temperature control device in which one (hot) temperature control device and the other (cold) temperature control device are alternately connectable to the same temperature control circuit has been found to be advantageous for the variothermal temperature control. Since both temperature control devices alternately feed a temperature control circuit, the hot temperature medium in the mold is quickly displaced by the cold temperature control medium when switching over and vice versa. This opens up an additional process parameter with the shortest possible non-productive times for heating and cooling. At the same time, the tempering device can be connected to common molds due to its simple structure. The connections to the mold and the arrangement, dimensions and design of the supply and discharge lines of the temperature control to the mold are variable and depend, inter alia, on the mold itself, the running therethrough tempering channels and the nature of the casting. Such a known tempering device is e.g. available under the product name Vario-5 from the manufacturer HB-Therm.
    The tempering device mentioned above can also be used for the conventional tempering at a temperature, but has the disadvantage that due to the constructive arrangement, only one of the two tempering devices (namely, that which is connected to the tempering circuit) is operational. The second temperature control unit can not be used in the conventional temperature control mode. In order to achieve a corresponding cooling efficiency and thus a short cycle time in conventional temperature control, which, as mentioned, is heat removal in the steady state, it is often necessary to connect further additional temperature control devices with tempering medium to the mold , which causes additional equipment and additional costs in terms of purchase and operation. This disadvantage of the known tempering device is shown below in connection with FIG. 2 and explained in more detail.
    It is therefore an object of the invention to improve the tempering device mentioned in the introduction in such a way that use of all temperature control devices present in the temperature control device and thus more efficient use and utilization of the device is also possible in conventional operation.
    This object is achieved with a tempering device as mentioned at the beginning, which is characterized in that it has a second switching device for connecting the second temperature control device to a second temperature control circuit, wherein the second temperature control circuit has a second temperature control supply line and a second temperature control line
    Temperierkreis return line for connecting the second temperature control circuit to the mold tool.
    Thanks to the invention, efficient device utilization of a tempering device optimized for variothermic operation is also possible in conventional operation. The invention enables a flexible use of the temperature control device by appropriate Einellungen the switching units, a cost-effective system procurement and due to derbesseren Temperiergerätenutzung a smaller footprint, since in conventional operation for cooling less additional temperature control must be switched on.Da both temperature control are available for conventional operation, allows the temperature control device according to the invention an improved cooling performance and therefore shorter cycle time in production.
    The device according to the invention can be suitably connected to various molds whose design can depend on the plastic material, the casting mold (size, wall thickness, etc.) of the casting, the method used and other parameters known to the person skilled in the art. For the variothermal operation, it is advantageously connected to molding tools in which a tempering medium channel close to the cavity is provided, whereas in conventional operation it is advantageously connected to a forming tool having two or more near-temperature tempering media channels.
    The connections to the mold as well as the arrangement, dimensioning and design of the tempering medium supply and return lines of the tempering device to the mold are variable and depend inter alia on the mold itself, the tempering channels running therein and the type of casting. It is within the skill and knowledge of a person skilled in the art to select the connections and the arrangement, dimensioning and design of the supply and return lines accordingly.
    Advantageously, therefore, in a variothermal tempering of the mold, the first switching means and the second switching means are switched so that only the first tempering circuit is opened for alternately guiding the first and second tempering mediums. The second temperature control circuit is not used in the variothermic temperature control and is therefore closed for the second temperature control medium. It is advantageous if the first temperature control temperature of the first temperature control medium to a first temperature and the second tempering device, the second temperature control tempered to a second temperature, wherein the first temperature is lower than the second temperature.
    In a conventional temperature of the mold, however, it is provided that the first switching device is switched so that the first temperature control is open only for the first temperature control, and that the second switching device is switched so that the second temperature control for the second temperature control The first temperature control device or the second temperature control device advantageously heats the first or the second temperature control medium to the same temperature. This is the temperature at which filling of the mold and subsequent solidification of the melt is possible.
    In certain injection molding applications, it is possible that the cooling of the mold in conventional tempering or the cooling of the mold during the cooling phase of the variothermal tempering with the existing temperature control is not sufficient. For these applications, it is therefore advantageous if at least one additional, additional tempering circuit is provided for guiding a further tempering medium in the tempering device, wherein this additional tempering circuit via supply and return lines to the mold is connected and wherein the at least one additional tempering circle a tempering device is assigned. This additional tempering circuit is switchable primarily to increase the cooling capacity of the temperature control in the steady state production, but can of course also be used for heating the mold to target temperature.
    The tempering media used and described herein are normally liquid, typically aqueous media, e.g. Water, or oil. Accordingly, the tempering device is designed and configured in a manner which is well known for tempering liquid tempering media (heating fluid, cooling fluid).
    The dimensioning of the temperature control, the lines and other per se known components such. Valves and pumps depend on the particular application and are within the discretion and judgment of those skilled in the art.
    The switching units expediently include valves that are connected in accordance with the desired temperature and operation Tempe¬rierbetrieb. The valves may, for example, be solenoid valves, which are expediently controllable and controllable in a manner known per se by a control unit associated with the temperature control device, as described below.
    Furthermore, it is particularly advantageous for variothermal operation in which the tempering medium passages of the molding tool are always flowed through in alternating hot and cold water when a first reservoir for the first temperature control medium and a second reservoir for the second temperature control medium are provided in the temperature control device Thus, the injection molding process can be operated with variothermal tempering of the mold energy saving and with shorter cycle times. For example, the accumulators are integral components of the temperature control devices.
    The temperature control device according to the invention expediently operates fully automatically. Accordingly, it comprises a control unit which is equipped for its programmed control. The control unit enables fully automatic operation and fully automatic monitoring of the tempering process and is constructed in a manner known per se; it typically has a microcontroller and electronic components. If the temperature control device is an integral part of an injection molding system, then alternatively the temperature control device can also be controlled by the control unit of the injection molding system.
    In the following, the invention, together with further advantages, will be explained in more detail on the basis of a non-restrictive exemplary embodiment, which is illustrated in the attached drawings. The drawings show:
    1 shows a schematic representation of a tempering device according to the state of the art in the variothermal tempering operation, FIG. 1a showing the cooling phase and FIG. 1b the heating phase of the variothermal tempering, FIG.
    2 shows the temperature control device according to the prior art from FIG. 1 in the conventional temperature control mode (cooling), FIG.
    Fig. 3 is a schematic representation of a temperature control device according to the invention imkonventionelle temperature control (cooling), and
    FIG. 4 shows the tempering device according to the invention from FIG. 3 in the variothermal tempering drive, FIG. 4a showing the heating phase and FIG. 4b the cooling phase of the variothermal tempering.
    1 shows a schematic representation of a tempering device 100 according to the prior art (for example, the tempering device Vario-5 manufacturer HB-Therm) in variothermal tempering operation, wherein in Fig. La the cooling phase and in Fig. Lb the heating phase of the variothermic temperature is shown. The tempering device 100 has a first tempering circuit 101 with a first tempering circuit supply line 102 and a first temperature control return line 103. The supply and return lines 102, 103 are connected via connections 104 to tempering medium channels 201 of one half of a two-part molding tool 200 of an injection molding machine (not shown). The molding tool 200 is designed for variothermic temperature control. The other half of the molding tool 200 and the tempering media channels extending therein are shown in broken lines. Between the two halves of the molding tool 200, a cavity 202 is formed, into which the plastic melt is injected.
    The temperature control device 100 comprises a first temperature control device 105 for a first Tempe¬riermedium 113, wherein the first tempering device 105 via a first Temperiergerät supply line 106 and a first Temperiergerät return line 107 with the first Tem¬perierkreis 101 is connectable.
    The temperature control device 100 further includes a second temperature control unit 108 for a second temperature control medium 114, wherein the second tempering device 108 via a second Temperierge¬rät supply line 109 and a second Temperiergerät Rücjlaufleitung 110 also with the first temperature control circuit 101 is connectable.
    The tempering device 100 further comprises a switching device 111, with which the first and the second temperature control 105, 108 for the variotherme tempering are alternately connected to the first temperature control 101, i. it is alternately cold and hot tempering 113.114 passed through the near-cavity temperature control 201 of the mold 200. For this purpose, the switching device comprises valves 112, the device with appropriate circuit either the first or the second temperature control 105,108 connect to the first temperature control 101. In the example shown, the Um¬schalteinrichtung 111 three valves 112; however, one skilled in the art will be able, due to his knowledge and ability, to provide a different valve arrangement or number. In the example shown, the first (cold) tempering device 105 is provided for the tempering of the cold tempering medium 113 (coolant 113) and the second (hot) temperature control unit 108 for the tempering of the hot tempering medium 114 (heating means 114) during the variovothermal operation. Injecting the plastic melt into the cavity 202 of the molding tool 200 takes place in a manner known per se at high temperature of the molding tool 200 in the heating phase (see FIG. 1b), whereas in the cooling phase (see FIG. 1a) the molding tool 200 is cooled.
    1 a shows the temperature control device 100 based on the flow of the heating means 114 or the coolant 113 during the cooling phase. In the cooling phase, the valves 112 of Um¬schalteinrichtung 111 are switched so that the first temperature control 101 is closed for the heating means 114 and opened for the coolant 113. The heating means 114 is circulated during the cooling phase and can be stored in a non-illustrated memory arranged in the temperature control unit 108 until the initiation of the heating phase.
    Fig. Lb shows the temperature control device 100 based on the flow of the heating means 114 and the coolant 113 during the heating phase. In the heating phase, the valves 112 of Um¬schalteinrichtung 111 are switched so that the first temperature control 101 is opened for the heating means 114 and closed for the coolant 113. The coolant 113 is guided during the heating phase in a circle and can be stored in a device in tempering 105 arranged, not shown closer memory until the initiation of the cooling phase.
    FIG. 2 shows the tempering device from FIG. 1 in the conventional tempering mode, in which a forming tool 200 'is tempered only at one temperature, in contrast to the variothermal tempering operation (FIG. 1). The mold 200 'is designed for conventional temperature control. The supply and return lines 102, 103 are connected via connections 104 to tempering media channels 201 'of one half of the two-part molding tool 200' to an injection molding machine not shown in any more detail. The other half of the molding tool 200 'and the tempering media channels extending therein are again shown by dashed lines. Between the two halves of the molding tool 200 ', a cavity 202' is formed, into which the plastic melt is injected. Usually, the selected temperature will be closer to the lower temperature of the variotherm operation, as shown in FIG. For this purpose, the valves 112 of the switching device 111 are connected such that the first temperature control circuit 101 is closed for the heating means 114 and opened for the coolant 113, and only the temperature control device 105 is in operation. The second temperature control device 108 can not be used in conventional temperature control operation. To increase the cooling efficiency to achieve short cycle times, therefore, an additional tempering device 115 must be connected to the mold 200 'by means of supply and return lines 116. As can be clearly seen from FIG. 2, the tempering apparatus 100 according to the state of the art in conventional tempering operation can not provide satisfactory apparatus utilization, ie. a use of all existing devices can be achieved, so that the addition of additional temperature control is necessary for increasing the cooling efficiency.
    3 shows a schematic representation of a tempering device 300 according to the invention in conventional tempering operation (cooling).
    The temperature control device 300 has a first temperature control circuit 301 with a first temperature control supply line 302 and a first temperature control return line 303. The supply and return lines 302, 303 are connected via connections 304 to tempering medium ducts 201 'of a half of a two-part molding tool 200' of an injection molding machine (not shown). The molding tool 200 'is designed for conventional tempering. The other half of the mold 200 'and the tempering media channels running therein are shown in broken lines. Between the two halves of the molding tool 200 ', a cavity 202' is formed, into which the plastic melt is injected. Usually, the mold 200 'in the conventional Temperierbe¬, as shown in Fig. 3, cooled.
    The tempering device 300 comprises a first tempering device 305 for a first Tempe¬riermedium 313, wherein the first tempering device 305 via a first Temperiergerät supply line 306 and a first Temperiergerät return line 307 with the first Tem¬perierkreis 301 is connectable.
    The tempering device 300 further comprises a second tempering device 308 for a second tempering medium 314, wherein the second tempering device 308 via a second Temperierge¬rät supply line 309 and a second Temperiergerät-return line 310 also with the first tempering circuit 301 is connectable.
    The tempering device 300 further includes a first switching device 311, with either the first or the second tempering device 305, 308 with the first Tempe¬rierkreis 301 is connectable. For this purpose, the first switching device comprises valves 312, the device 301, 308 connected to the first temperature control 301 with appropriate circuit either the first or the second temperature control. In the example shown, the first change-over device 311 comprises three valves 312; however, one skilled in the art will be able, due to his knowledge and ability, to provide a different valve arrangement or number.
    According to the invention, the temperature control device comprises a second switching device 315, with the second temperature control device 308 is connectable to a second temperature control circuit 316, wherein the second temperature control circuit 316 has a second Temperierkreis supply line 317 and a second Temperierkreis return line 318. The supply and return lines 317, 318 can likewise be connected via connections 304 to the temperature control media channels 201 'of the second-part mold 200'. The second switching device 315 comprises two valves 319 which, if appropriately connected, can connect the second temperature control unit 308 to either the first temperature control circuit 301 or the second temperature control circuit 316. In the example shown, the second switchover device comprises two valves 319; however, one of ordinary skill in the art will be able, by virtue of his knowledge and ability, to provide a different valve arrangement or number.
    The valves 312, 319 may be, for example, solenoid valves, which are appropriately controllable and controllable in a manner known per se by a control unit associated with the temperature control device 300, as described below. For the conventional temperature control (cooling only) of the molding tool 200 ', as shown in FIG. 3, the valves 312 and 319 of the first switching device 311 and the second switching device 315 are connected such that the first temperature control circuit 301 for the temperature control medium 314 is closed and is open for the temperature control medium 313 and that the second temperature control circuit 316 is open for the second temperature control medium 314 that is Only the temperature control unit 305 is connected to the first temperature control circuit 301 and the second temperature control unit 308 is connected to the second temperature control circuit 316. As is clear from Fig. 3, in contrast to the prior art (Fig. 1 and Fig. 2) in the temperature control device 300 according to the invention, the tempering device 308 are used and thus allows maximum utilization of the temperature control 305,308. In the event that, moreover, temperature control devices (depending on the mold used) are required, one or more additional temperature control devices can also be connected to the molding tool 200 'in the device 300 according to the invention, for example a temperature control device 115 as shown in FIG. 2. For reasons of better Dar-adjustability, however, such an additional temperature control unit 115 is not in Fig. 3 eingezeich¬net.
    FIG. 4 shows the tempering device according to the invention from FIG. 3 in the variothermic temperature-limiting operation, wherein FIG. 4 a shows the cooling phase and FIG. 4 b shows the heating phase of the variothermic temperature. The supply and return lines 302, 303 of the first temperature control circuit 301 are connected via connections 304 to tempering medium channels 201 of one half of a two-part molding tool 200 of an injection molding machine (not shown). The molding tool 200 is designed for variothermic temperature control. The other half of the molding tool 200 and the tempering media channels extending therein are shown in broken lines. Between the two halves of the molding tool 200, a cavity 202 is formed, into which the plastic melt is injected. In Fig. 4, the first (cold) tempering device 305 for the tempering of the cold tempering 313 (Kühlmittel313) and the second (hot) tempering device 308 for the temperature of the hot Tempe¬riermediums 314 (heating means 314) is provided during the variothermal operation , Injecting the plastic melt into the cavity 202 of the molding tool 200 is done in a known manner at high temperature of the molding tool 200 in the heating phase (see Fig. 4b), whereas in the cooling phase (see Fig. 4a) the molding tool 200 is cooled.
    In the variothermic temperature control of the molding tool 200 shown in FIG. 4, the first and the second switching devices 311, 315 of the device 300 are switched so that only the first temperature control circuit 301 for alternately guiding the first and the second
    Temperature control medium 313, 314 is opened, whereas the second temperature control 316 for the second temperature control medium 314 is closed. In other words, the tempering devices 305 and 308 are alternately connected to the first temperature control circuit 301. The second temperature control device 308 is decoupled from the second temperature control circuit 316. As shown in FIGS. 4 a and 4 b, the second temperature-limiting circuit 316 is omitted in the case of the variothermic temperature control or is not connected to the forming tool even in the practical implementation. In the case of the variothermic temperature control, alternating hot and cold temperature control medium 313, 314 are thus conducted in a known manner through the cavity-near temperature control channels 201 of the molding tool 200.
    FIG. 4 a shows the temperature control device 300 based on the flow of the heating means 314 or of the coolant 313 during the cooling phase. In the cooling phase, the valves 312 of Um¬schalteinrichtung 311 are switched so that the first tempering circuit 301 is closed for the heating means 314 and opened for the coolant 313. The heating means 314 is guided during the cooling phase in a circle and can be stored in a tempering device 308 arranged, not shown closer memory until the initiation of the heating phase.
    FIG. 4b shows the temperature control device 300 based on the flow of the heating means 314 or the coolant 313 during the heating phase. In the heating phase, the valves 312 of Um¬schalteinrichtung 311 are switched so that the first temperature control circuit 301 is opened for the heating means 314 and closed for the coolant 313. The coolant 313 is circulated during the heating phase and can be stored in a non-illustrated storage unit located in the temperature control unit 305 until the cooling phase is initiated.
    The tempering device 300 according to the invention expediently operates fully automatically. Accordingly, it comprises, according to a manner known per se, a control unit, not shown, which is set up for its programmed control. The control unit enables fully automatic operation and fully automatic monitoring of the tempering process and is constructed in a manner known per se; it typically includes a microcontroller and electronic components. If the tempering device 300 is an integral part of an injection molding system, then-alternatively-the control of the temperature control device can also be effected by the control unit of the injection molding installation.
    权利要求:
    Claims (11)
    [1]
    Claims 1. Tempering device (300) for tempering a mold (200, 200 ') for the plastics processing, in particular a mold (200, 200') for an injection molding, wherein in the mold (200, 200 ') at least one Temperiermedienkanal (201 , 201 ') is provided for passing through at least one tempering medium (313, 314), wherein the tempering device (300) comprises: a first tempering circuit (301) for guiding at least one tempering medium (313, 314), with a first tempering circuit supply line (302) and a first Temperierkreis return line (303) for connecting the first Temperierkreises (301) to the Formwerkzeug (200, 200 '), a first temperature control unit (305) for a first tempering (313), wherein the first tempering device (305) via a first temperature control unit supply line (306) and a first temperature control unit return line (307) can be connected to the first temperature control circuit (301), a second temperature control unit (308) f a second tempering medium (314), wherein the second tempering device (308) via a second temperature control unit supply line (309) and a second temperature control unit return line (310) with the first temperature control circuit (301) is connectable, and a first switching means (311) for alternately connecting the first and the second temperature control unit (305, 308) to the first temperature control circuit (301), alternating the first and the second temperature control medium (313, 314) through the first temperature control circuit (301) and through at least one of the at least one temperature control media channels (201, 201 ') of the molding tool (200, 201'), characterized by a second switching device (315) for connecting the second temperature control device (308) to a second temperature control circuit (316), the second temperature control circuit (316) having a second temperature control supply line (317) and a second Temperierkreis return line (318) for connecting the second Temperierkreises (316) to the mold (200, 200 ') a ufweist.
    [2]
    2. tempering device according to claim 1, characterized in that in a variarothermic temperature of the mold (200) the first switching means (311) and the second switching means (315) are connected so that only the first tempering (301) for alternately guiding the first and second temperature control medium (313.314) is opened.
    [3]
    3. temperature control device according to claim 2, characterized in that the first temperature control unit (305) the first temperature control medium (313) to a first temperature tempered and the second tempering device (308), the second temperature control medium (314) to a second temperature, the first temperature lower than the second temperature is.
    [4]
    4. tempering device according to claim 1, characterized in that at a conventional temperature of the mold (200 '), the first switching means (311) is switched so that the first temperature control circuit (301) is open only for the first Temperiermedi¬um (313) and in that the second switching device (315) is connected such that the second temperature control circuit (316) is open for the second temperature control medium (314).
    [5]
    5. tempering device according to claim 4, characterized in that the first tempering device (305) and the second tempering device (308), the first and the second Tem¬periermedium (313, 314) tempered to the same temperature.
    [6]
    6. temperature control device according to one of claims 1 to 5, characterized in that at least one further temperature control circuit (116) is provided for guiding a further Temperierme¬diums, wherein the tempering circuit (116) via supply and return lines can be connected to the mold and wherein the tempering circuit is assigned a tempering device (115).
    [7]
    7. temperature control device according to one of claims 1 to 6, characterized in that it is adapted for tempering liquid temperature control media (313, 314).
    [8]
    8. tempering device according to one of claims 1 to 7, characterized in that the switching means (311, 315) comprise valves (312, 319).
    [9]
    9. temperature control device according to one of claims 1 to 8, characterized in that a first memory for the first temperature control medium (313) and a second memory for the second temperature control medium (314) is provided.
    [10]
    10. Temperature control device according to one of claims 1 to 9, characterized by a control unit which is set up for the programmed control of the temperature control device (300).
    [11]
    11. tempering device according to claim 10, characterized in that at least the valves (312, 319) of the switching means (311, 315) are controlled by the control unit and controllable.
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    同族专利:
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    AT516167B1|2016-03-15|
    CN105904694A|2016-08-31|
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    DE102012111700B4|2012-12-03|2017-01-19|Wenz Kunststoff Gmbh & Co. Kg|Device and method for the variothermic temperature control of an injection mold|CN109343352B|2018-12-17|2020-06-05|山东大学|Temperature control method and system based on time optimal control|
    EP3915754A1|2020-05-26|2021-12-01|Wenz Kunststoff GmbH & Co. KG|Method and device for variothermal tempering of an injection moulding tool|
    法律状态:
    2016-11-15| HC| Change of the firm name or firm address|Owner name: ZKW GROUP GMBH, AT Effective date: 20161014 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50134/2015A|AT516167B1|2015-02-20|2015-02-20|Temperature control device for variothermic or conventional tempering of molds|ATA50134/2015A| AT516167B1|2015-02-20|2015-02-20|Temperature control device for variothermic or conventional tempering of molds|
    EP16152349.3A| EP3059062A1|2015-02-20|2016-01-22|Tempering device for variothermal tempering or conventional tempering of forming tools|
    CN201610095152.3A| CN105904694A|2015-02-20|2016-02-22|Tempering device for variothermal tempering or conventional tempering of forming tools|
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