• 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:
    Temperature control device for a forming machine with at least two parallel-connected temperature control circuits (4) and a supply source for supplying the at least two parallel-connected temperature control (4) with a tempering, wherein downstream of the supply source in each of the at least two parallel-connected temperature control circuits (4) a feed pump (16 ) is arranged, each of the feed pumps (16) from the supply source in the respective temperature control circuit (4) promotes tempering further.
    公开号:AT517759A1
    申请号:T646/2015
    申请日:2015-10-05
    公开日:2017-04-15
    发明作者:Ing Christoph Balka Dipl；Dipl Ing Giessauf Josef；Ing Mathias Schläger Dipl；Dipl Ing Dr Steinbichler Georg
    申请人:Engel Austria Gmbh；
    IPC主号:
    专利说明:

    The invention relates to a tempering device with the features of the preamble of claim 1 and a shaping machine with such a T emperiervorrichtung.
    The tempered, d. H. to be heated or cooled object is also referred to below as "consumer".
    The term "circle" in the present disclosure does not necessarily mean a self-contained circuit, but, for example, a tempering of an injection mold as a consumer including a supply and return line, see, for. A supply circuit 1 (comprising a central supply 2 and a central return 3) supplies, via a supply source, not shown (eg supply pump or connection of a public water network or a service water network), two temperature control circuits 4 connected in parallel (only the upper is provided with a reference numeral). Each temperature control circuit 4 has a flow 5 and a return 8.
    In the present case 6 two temperature control channels 7 are arranged in the consumer.
    In the state of the art according to FIG. 2, a temperature-control water distributor 11 is supplied with the temperature-control medium by means of a central supply source (in this case by way of example a supply pump 9). By throttling the individual temperature control circuits 4 by means of throttle valves 13, the required flow rates in the respective temperature control circuits 4 are set. The temperature control circuits 4 can be shut off by shut-off valves 12. From the supply pump 9 to the Temperierwasserverteiler 11, a correspondingly high flow volume flow must be available to ensure the required flow rates in the temperature control 4. The requirement for the pump delivery pressure of the supply pump 9 is relatively low, since there are only small pressure losses on this route. From the Temperierwasserverteiler 11 to the temperature control 4 a significantly smaller flow rate, but a high delivery pressure is required.
    Currently, due to these requirements, a single supply pump 9 is used with high flow rate and high delivery pressure. This results in high acquisition and energy costs.
    The object of the invention is to provide a tempering device and a shaping machine with such a tempering device, which incur lower energy costs.
    This object is achieved by a temperature control device having the features of claim 1 and a shaping machine with such a temperature control device. Advantageous embodiments of the invention are defined in the dependent claims.
    The idea of the invention is a distribution of the tasks of the central supply source to now several pumps. Due to the demand-oriented operation of the respective pumps results in a better pump utilization and a significant energy savings.
    If the supply source comprises or is designed as a supply pump, the invention replaces a single, forcibly high-capacity supply pump, which delivers high volume flows and high pressures, by: a plurality of feed pumps, which are mainly responsible for the necessary pressure build-up Supply pump, which preferably generates a high volume flow.
    In combination with a speed control results in a significant cost and energy savings due to the better utilization of the pumps. The central supply pump does not have to generate high pressures, as this task is taken over by the feed pumps.
    The tempering medium may be, for example, water.
    A throttling can be omitted when using a variable speed pump, with which the system can be operated at lower losses at the optimum operating point.
    A tempering circuit is formed in the preferred case as a single circuit, but may also include a series or parallel connection of individual circuits (hereinafter also referred to as "Teiltemperierkreise").
    Optionally, when using force-feeding pumps, a sensor for flow measurement can be dispensed with, since the flow in the individual temperature control circuits can be determined from the current speed and the pump characteristic.
    In one embodiment, a spatially separate mounting of the supply pump and the feed pumps is provided. In this case, the supply unit (in this example designed as a temperature control unit) includes a common supply pump and a heating device and a cooling device, which are controlled via a control and control unit. The feed pumps mounted close to the consumer are supplied with the temperature control medium via the supply circuit and provide the required pressure and flow rate for the individual temperature control circuits. Optionally, various sensors and valves may be included both in the supply circuit and in the temperature control circuits.
    In a further embodiment, the entire structure, which includes the common supply pump, heater, cooling device, control and regulation unit, sensor, valves and variable-speed feed pumps is combined in one unit (cubature). The structure may alternatively include a tank which is supplied by a pump or nachgespeist.
    The described embodiments preferably have a control and regulation unit, which stands alone or in the control of a
    Forming machine can be integrated. It processes the signals from the sensors and the pumps and controls the pumps and valves.
    The invention can be implemented both as a micro-distribution, in which a shaping machine is supplied centrally and the temperature control is distributed to the cooling circuits, as well as a macro-distribution in a machine hall has a central supply and the temperature control is distributed to the individual forming machines.
    The invention is not limited to the mold temperature control, but is also conceivable as a tempering of parts of a molding machine.
    Embodiments of the invention will be discussed with reference to FIGS. 3 to 7.
    3:
    At least two feed pumps 16 (here: four feed pumps 16), which supply at least one temperature control circuit 4, are supplied with temperature control medium by a common feed circuit 1 (here: cascade connection of pumps 9, 16).
    A preferably speed-controlled (central) supply pump 9 supplies the required high delivery volume flow at low delivery pressure to Temperierwasserverteiler 11. Preferably each Temperierkreis 4 has its own preferably speed-controlled feed pump 16. This generates at a relatively low flow rate the required pressure in Temperierkreis 4. Both in the supply as well as in the temperature control 1.4 sensors 10 and valves may be present.
    The mass flow in the supply circuit 1 is always equal to the sum of the individual mass flows in the respective temperature control circuits 4 (mass flow = volume flow x density).
    The temperature of the temperature control medium is already set in the supply circuit 1, not in the individual temperature control circuits 4. Thus, the temperature control in the heats 5 of the temperature control 4 has substantially the same temperature.
    The setting of the desired flow in the temperature control circuits 4 can be done by speed control or by other measures that affect the delivery characteristics of the pump (pump curve), rather than by throttling by changing the cross section.
    4:
    Here, a spatially separate assembly of the supply pump 9 and the feed pumps 16 is provided. In this case, the supply unit 17 (in this example designed as a temperature control unit) includes a common supply pump 9 and a heating device 20 and a cooling device 19, which are controlled via a control or control unit. The mounted near the consumer feed pumps 16 are supplied via the supply circuit 1 with the temperature control and provide the required pressure and flow rate for the individual temperature control circuits 4 available. Optionally, various sensors 10 and valves may be included both in the supply circuit 1 and in the temperature control circuits 4.
    Fig. 5:
    Here is the entire structure, which includes the common supply pump, heater, cooling device, control and control unit, sensor, valves and possibly speed-controlled feed pumps, summarized in a structural unit 17 (cubature). The structure may also include a tank 21, which is supplied by a pump, not shown, or nachgespeist.
    Fig. 6:
    Individual components of a shaping machine are supplied as objects to be tempered 22 by the tempering circuits 4 (not shown in this overview representation).
    Fig. 7:
    Individual shaping machines (eg injection molding machines) are supplied as objects 22 to be tempered by the temperature control circuits 4 (not shown in this overview representation).
    Innsbruck, on October 1, 2015
    List of Reference Signs: 1 supply circuit 2 central supply 3 central return 4 temperature control circuit 5 flow of temperature control circuit 6 consumer 7 temperature control channel 8 return of temperature control circuit 9 speed-controlled supply pump 10 sensor and / or valve 11 temperature control manifold 12 shut-off valve 13 throttle valve 14 central return 15 central flow 16 speed-controlled feed pump 17 housing / Temperature control unit 18 Display 19 Cooling device 20 Heating device 21 Tank 22 Object to be tempered, eg: injection molding machine, tool
    权利要求:
    Claims (14)
    [1]
    claims
    1. tempering device for a shaping machine with at least two parallel-connected temperature control circuits (4) and a supply source for supplying the at least two parallel-connected temperature control circuits (4) with a tempering medium, characterized in that downstream of the supply source in each of the at least two parallel-connected temperature control circuits (4 ) is arranged a feed pump (16), wherein each of the feed pumps (16) from the supply source in the respective temperature control circuit (4) promotes tempering further.
    [2]
    2. tempering device according to claim 1, wherein the feed pumps (16) are designed as pumps with adjustable or adjustable volume flow.
    [3]
    3. temperature control device according to claim 1 or 2, wherein the feed pumps (16) are designed as speed-controlled pumps.
    [4]
    4. tempering device according to at least one of the preceding claims, wherein the supply source comprises a supply pump (9).
    [5]
    5. temperature control device according to at least one of the preceding claims, wherein the sum of the funded by the feed pumps (16) mass flows equal to the mass flow of the from the supply source in the at least two parallel-connected temperature control circuits (4) funded tempering.
    [6]
    6. tempering device according to at least one of the preceding claims, wherein at least one of the at least two parallel-connected temperature control (4) has at least two parallel switched Teiltemperierkreise, wherein the feed pump (16) of the at least one tempering (4) tempering in the at least two parallel switched Teiltemperierkreise promotes.
    [7]
    7. tempering device according to at least one of the preceding claims, wherein upstream of the at least two parallel-connected temperature control circuits (4) a supply unit - preferably a temperature control - is arranged, so that the at least two parallel-connected temperature control (4) reaching tempering substantially the Supply unit provided temperature.
    [8]
    8. tempering device according to at least one of the preceding claims, wherein the supply source comprises as a structural unit: - a supply pump (9), a cooling device (19) and / or - a heating device (20).
    [9]
    9. temperature control device according to at least one of the preceding claims, wherein the supply source comprises as a structural unit: - a supply pump (9), - a cooling device (19) and / or a heating device (20) - a control or regulating unit.
    [10]
    10. tempering device according to at least one of the two preceding claims, wherein the assembly further comprises the feed pumps (16).
    [11]
    11 .Temperiervorrichtung according to at least one of the three preceding claims, wherein the assembly further comprises a tank (21) from which supplies the supply pump (9).
    [12]
    12. Forming machine, in particular injection molding machine with a tempering device according to at least one of the preceding claims.
    [13]
    13. Forming machine according to the preceding claim, wherein the shaping machine has at least two objects to be tempered (22), preferably mold halves, and each of the at least two objects to be tempered (22) by one of the at least two parallel-connected temperature control circuits (4) can be supplied with tempering ,
    [14]
    14. Arrangement of at least two shaping machines according to the preceding claim, wherein each of the at least two shaping machines can be supplied with tempering medium by one of the at least two temperature control circuits (4) connected in parallel. Innsbruck, on October 1, 2015
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    同族专利:
    公开号 | 公开日
    DE102016011873A1|2017-04-06|
    AT517759B1|2017-11-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE10213418A1|2002-03-26|2003-10-16|Sero Pumpenfabrik Gmbh & Co Kg|Multi-part plastics injection tool cooling method uses coolant at pressure below atmospheric|
    DE10329493B3|2003-06-30|2004-07-01|Technotrans Ag|Tempering agent supply to channels in two or more injection moulding machines, consists of a common control circuit, independent circuits, and supply and removal lines|
    US20090174101A1|2005-02-14|2009-07-09|Johnson Kenneth E|Method and apparatus for controlling the temperature of molds, dies, and injection barrels using fluid media|
    AT519254B1|2017-04-04|2018-05-15|Engel Austria Gmbh|tempering|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA646/2015A|AT517759B1|2015-10-05|2015-10-05|Temperature control device and shaping machine|ATA646/2015A| AT517759B1|2015-10-05|2015-10-05|Temperature control device and shaping machine|
    DE102016011873.3A| DE102016011873A1|2015-10-05|2016-10-04|Temperature control device and shaping machine|
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