• 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:
    Injection device (10) designed to inject a first material into a cavity of an injection molding tool, the injection device (10) having an injection piston (20) displaceable in a cylinder (16) delimiting an injection piston space (22) and for conveying the first material from the injection piston chamber (22) is designed in the cavity of the injection molding tool, and wherein the injection device (10) comprises a mixing and / or dosing, which is designed for conveying the first material into the injection piston chamber (22), wherein the injection device (10) has a in a cylinder (24) displaceable pressure control piston (28) which defines a piston chamber (32) which is hydraulically connected to the injection piston chamber (22).
    公开号:CH713408A2
    申请号:CH00026/18
    申请日:2018-01-12
    公开日:2018-07-31
    发明作者:Rapp Gerhard
    申请人:Edegs Formenbau Gmbh；
    IPC主号:
    专利说明:

    Description: The invention relates to an injection device which is designed to inject a first material into a cavity of an injection molding tool, wherein the injection device has a piston displaceable in a cylinder, which delimits an injection piston space and for conveying the first material from the injection piston space into the injection chamber Is designed cavity of the injection molding tool, and wherein the injection device comprises a mixing and / or metering system, which is designed for conveying the first material in the injection piston chamber. The invention further relates to a spray system comprising such an injection device, a method for operating such an injection device, and a method for operating such a spray system.
    Such spraying devices are known from the prior art. In this case, for example, in spray systems comprising such an injection device, a material, for example. A plastic, injected into the cavity of an injection mold, wherein by means of the spraying devices described above another material, for example. An elastomer or a silicone, in a further step is injected into the cavity of the injection mold. By injecting a material into a cavity, in the context of this invention, both direct injection of a material into the cavity and indirect injection of a material into the cavity, for example using a distribution system, e.g. a cold runner-Angusssystems understood.
    It is known to provide for very small components several cavities, for example. 8 or 16 identical cavities in an injection mold, which are filled by means of a plurality of actively cooled channels, so-called cold runner-Angusssystems by injecting the various materials. Due to the ever smaller components to be sprayed, the so-called shot weights, i. the amounts of material that are injected from the injection devices described above in each case in an injection process in the cavities of the injection mold. For example, there is a need to be able to realize shot weights in the range of about 0.01 to 10 g, in particular in the range of about 0.01 to 2 g with so-called small spray systems, which are designed for spraying particularly small components. In so-called multi-component applications in which different materials are molded onto a component, a material often has a much lower shot weight than the main material of the component to be sprayed.
    In particular, in the application in the field of small spray systems, which are designed for spraying small or micro parts, it has been found that due to the ever smaller components reliable production of components in a multi-component manufacturing not without Another is feasible. In particular, when a very small component of a main material, for example. From a hard plastic, to be produced, in which case to the main material, a small additional portion of a further material, for example. A resilient portion of an elastomer or a silicone molded is, it has been shown that due to the small shot weights of the material to be sprayed (elastomer or silicone), which is often a two-component material, with the known from the prior art injection devices no satisfactory spraying results with consistently good quality can be realized.
    The invention is therefore an object of the invention to provide an injection device, which makes it possible to produce even small components with low shot weights in a reliable and cost-effective manner.
    This object is achieved by an injection device having the features of claim 1. Such an injection device is characterized in that the injection device has a pressure regulating piston which can be displaced in a cylinder and delimits a piston chamber which is hydraulically connected to the injection piston chamber. It is conceivable that a line, for example. In the form of a bore connecting the injection piston chamber and the piston chamber of the pressure regulating piston, wherein advantageously a check valve is arranged in the line, which opens to the injection piston chamber out, i. whose outlet is arranged on the side of the injection piston chamber.
    A first advantageous development of the injection device provides that the pressure regulating piston is designed to control the pressure prevailing in the injection piston chamber pressure. It is conceivable that the pressure regulating piston is also used for filling the injection piston chamber, wherein the pressure regulating piston is displaced for filling of a layer in the region of its top dead center toward a position in the region of its bottom dead center, wherein in the piston chamber of the pressure regulating piston befindliches material in the Push piston space is pressed. When filling the injection piston chamber by means of the pressure regulating piston then the pressure in the injection piston chamber can be monitored, this pressure by the force with which the pressure control piston pushes the material to be sprayed into the injection piston space can be controlled. Alternatively, however, it is also conceivable that the filling of the injection piston chamber by means of the mixing and / or dosing takes place, the pressure control piston remains in an intermediate position between its top and bottom dead center and by a relative displacement of the pressure control piston only a regulation of the pressure prevailing in the injection piston chamber pressure he follows. By regulating the pressure prevailing in the injection piston chamber pressure, a consistently good quality of the injected components can be achieved, possibly also a further improved mixing in two-component materials, which can be provided by the mixing and / or dosing and the can be previously mixed in a static mixer, can be achieved.
    An advantageous embodiment of the injection device provides that the mixing and / or dosing for mixing and / or dosing a two-component material, in particular a two-component silicone or a
    Two-component elastomers is designed. It is conceivable that the two components of the two-component material, for example a liquid silicone rubber (LSR), are stored in two different barrels or cartridges and can be fed through hoses to the mixing and / or metering system with which the two components are then mixed and then fed via the piston chamber of the pressure regulating piston to the injection piston chamber. However, it is also conceivable that the mixing and / or dosing is designed only for dosing a rubber material, it is conceivable that the rubber material is supplied to the injection piston chamber of the injection device by means of a press-fit piston as a so-called "doll" strand.
    Advantageously, an injection piston drive is provided, which is designed for displacing the injection piston. It has proven to be particularly preferred if the injection piston drive comprises a pneumatic drive, a hydraulic drive or an electric linear drive. In order to realize a particularly simple control and / or regulation of the injection piston drive, it has proven to be advantageous if the injection piston drive is designed as an electric linear drive.
    A further advantageous embodiment of the injection device provides a pressure control piston drive which is designed for displacing the pressure regulating piston. It has proven to be particularly advantageous if the pressure regulating piston drive comprises a pneumatic drive, a hydraulic drive or an electric linear drive. In order to be able to realize a particularly simple control and / or regulation of the pressure regulating piston drive, it has also proven to be advantageous if the pressure regulating piston drive is designed as an electric linear drive.
    Advantageously, a control device is provided, which is designed for controlling the pressure regulating piston drive based on the pressure prevailing in the injection piston chamber pressure. It is conceivable that the control device has a signal output which is designed to output control signals to the injection piston drive and to the pressure control piston drive. Furthermore, it is conceivable that the control device has a signal input which, for example, is designed to receive sensor signals.
    According to a further advantageous embodiment, a pressure sensor is provided which is designed to measure a pressure prevailing in the injection piston chamber pressure. It is conceivable that the measurement of the pressure takes place directly by means of a sensor arranged in the injection piston chamber, wherein it is also conceivable that the measurement of the pressure prevailing in the injection piston chamber or the pressure set by the pressure regulating piston indirectly by measuring the motor current of a pressure regulating piston driving electric linear drive takes place. Advantageously, the pressure sensor has a signal output which is designed to output measurement signals, wherein the measurement signals can be received at the signal input by the control device. Advantageously, the control device then controls the pressure regulating piston drive based on the measurement signals received by the pressure sensor.
    A further advantageous embodiment of the injection device provides that the injection device has a pressure regulating and dosing unit, wherein the pressure regulating and dosing unit comprises the pressure regulating piston and a connection for the mixing and / or dosing. It has proved to be particularly advantageous if the connection for the mixing and / or metering system and the cylinder in which the pressure regulating piston is arranged are arranged in a housing, so that the pressure regulating and metering unit is mounted as a whole and as a whole can be dismantled.
    Furthermore, it is advantageous if a first check valve is provided which is arranged between the mixing and / or metering and the pressure regulating piston space, and when a second check valve is provided, which is arranged between the pressure regulating piston chamber and the injection piston chamber. Advantageously, the first check valve has an inlet and an outlet, wherein the inlet of the first check valve is connected to the connection of the pressure regulating and metering unit for the mixing and / or metering system and wherein outlet of the first check valve opens into the pressure control piston chamber. It is also possible that the second check valve also has an inlet and an outlet, wherein the inlet of the second check valve opens into the pressure control piston chamber and wherein the outlet of the second check valve opens into the injection piston chamber.
    According to a particularly robust and inexpensive development of the injection device, it has been found to be advantageous if the first and the second check valve are designed as a particular spring-loaded ball check valves. However, it is also conceivable that the check valves are designed as controlled non-return valves.
    According to a particularly advantageous embodiment of the injection device is provided that the injection piston and / or the pressure control piston have a radial seal, which widens radially conically towards the injection piston chamber and / or the pressure regulating piston chamber. With such a conical radial seal, the service life in the region of the sealing of the injection piston and / or of the pressure control piston, as well as the pressure stability with reduced leakage, can be increased in an advantageous manner, which leads to an overall higher process stability. Advantageously, the radial seal expands in a cone angle in the range of 12 ° to 17 °, in particular in a cone angle of 14.5 ° to a longitudinal axis of the injection piston and / or the pressure regulating piston. It is particularly preferred in this case if the radial seal has a bevel on its side facing the injection piston space and / or the pressure regulating piston space, which is arranged at an angle of approximately 40 to 50 °, in particular at an angle of 46 ° to an end face of the radial seal.
    The object mentioned above is further solved by a spray system, in particular a small spray system with the features of claim 14. Such a spraying system comprises an injection device according to at least one of claims 1 to 13, which is designed for spraying a first material into a cavity of an injection molding tool, and further comprises a second injection device, which is designed for spraying a second material into the cavity of the injection molding tool. Thus, a second material of a component, or a main material made of a hard plastic in the cavity of the injection molding tool can be injected with the second injection device, then with the first injection device, a small additional portion of a first material, for example. A resilient portion of a Elastomer or a silicone, can be molded.
    The above-mentioned object is further achieved by a method having the features of claim 15, in particular by a method for operating an injection device, in particular an injection device of a small spray system, wherein the injection device has a displaceable in a cylinder injection piston, which limits an injection piston space and designed to convey a first material from the injection piston space into the cavity of an injection molding tool, and wherein the injection device comprises a mixing and / or metering system adapted to convey the first material into the injection piston space, the injection device being displaceable in a cylinder Pressure regulating piston having a piston space bounded, which is hydraulically connected to the injection piston chamber. The method is characterized in that when conveying the first material into the injection piston chamber, a pressure control of the pressure prevailing in the injection piston chamber pressure by actively displacing the pressure regulating piston takes place. By regulating the pressure prevailing in the injection piston chamber pressure, a consistently good quality of the injection-molded components can be achieved, possibly also a further improved mixing in two-component materials which can be provided by the mixing and / or dosing and the can be previously mixed in a static mixer, can be achieved.
    The above-mentioned object is further achieved by a method having the features of claim 16, in particular by a method for operating a spray system according to claim 13. The method is characterized in that first with the second injection device, the second material in the Is injected cavity of the injection molding tool and that then injected with the first injection device according to the method of claim 14, the first material into the cavity of the injection mold. With such a method, a second material of a component, for example. A main material can be injected from a hard plastic into the cavity of the injection molding tool with the second injection device of the spray system, wherein the first injection device, a small additional portion of a first material, for example. A resilient Section can be molded from an elastomer or a silicone.
    Further details and advantageous developments of the invention will become apparent from the following description, with reference to which an embodiment of an inventive injection device is described and explained in more detail.
    In the drawings: [0021]
    Fig. 1 is a schematic representation of an inventive injection device;
    Fig. 2 is a schematic representation of a basic part of the spraying device according to FIG. 1 without Druckregel- and
    metering;
    3 is a schematic representation of a pressure regulating and metering unit of the injection device according to the invention in isolation;
    4 shows an injection piston of the spraying device according to FIG. 1; and
    Fig. 5 is a radial seal of the injection piston according to FIG. 4 in a solo view.
    Fig. 1 shows a schematic representation of an inventive injection device 10 of an inventive injection system, not shown in the figures, which is designed for spraying a first material in a cavity of an injection molding tool also not shown in the figures. The spraying device 10 comprises a base part 12 and a pressure regulating and metering unit 14. FIG. 2 shows the base part 12 in isolation, without the pressure regulating and metering unit 14, FIG. 3 showing a schematic representation of the pressure regulating and metering unit 14 in isolation. Corresponding elements and components in the figures are identified by the corresponding reference numerals.
    As can be seen in FIGS. 1 to 3, the injection device 10 in the base part 12 a displaceable in a cylinder 16 of the housing 18 injection piston 20 which limits an injection piston space 22 and for conveying the first material from the injection piston chamber 22 in the cavity of the injection molding tool is designed. The spraying device 10 furthermore has a mixing and / or dosing system, not shown in the figures, which is designed to convey the first material into the injection piston chamber 22. The mixing and / or metering system is designed for mixing and / or metering a two-component material, in particular a two-component silicone or a two-component elastomer. The two components of the two-component material, for example a liquid silicone rubber (LSR), can be stored in two different barrels or cartridges and fed through hoses of the mixing and / or dosing, with the two components then be mixed. However, it is also conceivable that the mixing and / or dosing is designed only for dosing a rubber material, it is conceivable that the rubber material is supplied to the injection piston chamber 22 of the injection device 10 by means of a press-fit piston as a so-called "doll" strand.
    The pressure regulating and metering unit 14 of the injection device 10 has a displaceable in a cylinder 24 of the housing 26 of the pressure control and metering unit 14 pressure control piston 28 and a port 30 for the mixing and / or dosing. The pressure regulating piston 28 defines a piston chamber 32. The connection 30 for the mixing and / or metering system and the cylinder 24, in which the pressure control piston 28 is arranged, are all arranged in the individual housing 26, so that the pressure regulating and metering unit 14 as a whole as a unit on the base 12 can be mounted and removed again.
    The spraying device 10 is characterized in total by the fact that the piston chamber 32 is hydraulically connected to the injection piston chamber 22 through a wiring harness 34. The pressure regulating piston 28 is designed to control the pressure prevailing in the injection piston chamber 22 pressure. Via the connection 30 and via the piston chamber 32 of the pressure regulating piston 28, a two-component material from the mixing and / or metering system through the wiring harness 34, which has a line section 34a of the pressure regulating and metering unit and a line section 34b of the base part 12, the injection piston chamber 22 are supplied.
    Fig. 4 shows the injection piston 20 of the injection device 10 according to FIG. 1 in a stand-alone view, wherein Fig. 5 shows a radial seal 36 of the injection piston 20. In the present case, the pressure regulating piston 28 is constructed analogously to the injection piston 20 and also has a corresponding radial seal 36.
    The radial seal 36 is disposed on the injection piston chamber 22 and the pressure control piston chamber 32 facing the end 38 of the injection piston 20 in an annular groove 40. Further, a support ring 42 is provided, which is also arranged in an annular groove 44 of the injection piston 20. The radial seal 36 widens radially to the injection piston chamber 22 or to the pressure regulating piston chamber 32 in a cone angle 46 (see FIG. 5) in the range of 12 ° to 17 °, in particular in a cone angle of 14.5 ° to a longitudinal axis 48 of FIG Injection piston 20 on. On its side facing the injection piston chamber 22 side 50, the radial seal 36 also has a chamfer 52 which is disposed at an angle 54 of about 40 to 50 °, in particular at an angle 54 of 46 ° to an end face 56 of the radial seal.
    With such a conical radial seal 36, the service life in the region of the seal of the injection piston 20, and the pressure stability with reduced leakage, can be increased in an advantageous manner, which leads to a higher overall process stability.
    Coming back to FIGS. 1 to 3, the injection device 10 in the pressure regulating and metering unit 14, two check valves 58, 60 on. The first check valve 58 is arranged between the connection 30 for the mixing and / or metering system and the pressure regulating piston chamber 32, the second check valve 60 being arranged between the pressure regulating piston chamber 32 and the injection piston chamber 22. In this case, the first check valve 58 has an inlet 62 and an outlet 64, wherein the inlet 62 of the first check valve 58 is connected to the port 30 of the pressure control and metering unit 14 for the mixing and / or metering system and wherein the outlet 64 of the first Check valve 58 opens into the pressure control piston chamber 32. The second check valve 60 also has an inlet 66 and an outlet 68, wherein the inlet 66 of the second check valve 60 opens into the pressure control piston chamber 32 and wherein the outlet 68 of the second check valve 60 opens into the injection piston chamber 22.
    The first and the second check valve 58, 60 are formed as spring-loaded ball check valves and therefore each have a valve member designed as a ball 70, 72, each of a coil spring 74, 76 is biased against a valve seat (without reference numeral). However, it is also conceivable that the check valves 58, 60 are designed as controlled check valves.
    The injection device 10 has at the base 12 an injection piston drive 78 which is designed for displacing the injection piston 20 and is advantageously designed as an electric linear drive, whereby a simple control and / or regulation of the injection piston drive 78 can be realized. However, it is also conceivable that the injection piston drive 78 is formed pneumatically or hydraulically.
    In addition, the injection device 10 to the pressure regulating and metering unit 14 to a pressure control piston drive 80 which is designed for displacing the pressure regulating piston 28 and advantageously also designed as an electric linear drive, thus providing a simple control and / or regulation of the pressure control piston drive 80th can be realized. However, it is also conceivable that the pressure regulating piston drive 80 is formed pneumatically or hydraulically.
    The spraying device 10 furthermore has a control device 82 (cf., Fig. 1), which is designed to control the pressure regulating piston drive 80 based on the pressure prevailing in the injection piston chamber pressure. It is conceivable that the control device 82 has a signal output 84 which is designed to output control signals to the injection piston drive 78 and to the pressure regulating piston drive 80. Furthermore, it is conceivable that the control device 82 has a signal input 86, which is designed, for example, to receive sensor signals.
    权利要求:
    Claims (16)
    [1]
    A pressure sensor 88 is provided, which is designed to measure a pressure prevailing in the injection piston chamber 22 pressure. The pressure sensor 88 has a signal output 90 which is designed to output measurement signals, wherein the measurement signals at the signal input 86 can be received by the control device 82. Advantageously, the control device 82 then controls the pressure regulating piston drive 80 based on the measurement signals received by the pressure sensor 88. It is basically conceivable that the control device 82 is a central control device of a spray system or is connected to such a central control device for control signal exchange. It is conceivable that the measurement of the pressure takes place directly by means of a arranged in the injection chamber 22 pressure sensor 88, wherein it is alternatively or additionally also conceivable that the measurement of the pressure prevailing in the injection chamber 22 pressure or by the pressure regulating piston 28th adjusted pressure indirectly by measuring the motor current of the pressure regulating piston 28 driving electric linear actuator 80 is carried out. For filling the injection piston chamber 22 before an injection process, it is conceivable that the pressure regulating piston 28 is used to fill the injection piston chamber 22, the pressure regulating piston 28 for filling the injection piston chamber 22 from a position in the region of its top dead center to a position in the area its bottom dead center is displaced, wherein in the piston chamber 32 of the pressure regulating piston 28 befindliches material that was previously promoted by the mixing and / or dosing into the pressure control piston chamber 32, is pressed into the injection piston chamber 22. When filling the injection piston chamber 22 by means of the pressure regulating piston 28, the pressure in the injection piston chamber 22 can then be monitored by the sensor 88, this pressure then being controlled by the force with which the pressure regulating piston 28 presses the material to be injected into the injection piston space the force acting on the pressure regulating piston 28 by the pressure regulating piston drive 80 is regulated. Alternatively, however, it is also conceivable that the actual filling of the injection piston chamber 22 by means of the mixing and / or metering takes place, the pressure regulating piston 28 remains in an intermediate position between its upper and lower dead center and by a relative displacement of the pressure regulating piston 28, which in turn is caused by the pressure regulating piston drive 80, only a regulation of the pressure prevailing in the injection piston chamber 22 pressure occurs. By controlling the pressure prevailing in the injection piston chamber 22 pressure a consistently good quality of the injected components can be achieved, with an improved mixing in two-component materials, which can be provided by the mixing and / or dosing, can be achieved can. For spraying the material located in the injection piston chamber 22, the injection device 10, an injection channel 92 which leads from the injection piston chamber 22 to a spray nozzle 94 which is closable with a nozzle needle, not shown in the figures, by a example. Pneumatic nozzle needle drive 96th can be driven. During the injection process, the injection piston 20 is driven by the injection piston drive 78 and moved in the direction of the arrow 98, wherein the material located in the injection piston chamber 22 through the injection channel 92 and the nozzle 94 is pressed under high pressure directly or indirectly into a cavity of an injection mold. The use of a spray nozzle 94 is not absolutely necessary, since the use of a sprue system and the use of a so-called "immersion nozzle" is conceivable. Overall, an injection device 10 can be provided with the control of the pressure prevailing in the injection piston chamber 22 pressure consistently high quality of the injection-molded components can be achieved even with very small component sizes. claims
    An injection device (10) which is designed to inject a first material into a cavity of an injection molding tool, wherein the injection device (10) has an injection piston (20) which can be displaced in a cylinder (16) and which delimits an injection piston space (22) and Conveying the first material from the injection piston chamber (22) is designed in the cavity of the injection molding tool, and wherein the injection device (10) comprises a mixing and / or dosing, which is designed for conveying the first material into the injection piston chamber (22) in that the spraying device (10) has a pressure regulating piston (28) which can be displaced in a cylinder (24) and delimits a piston space (32) which is hydraulically connected to the injection piston space (22).
    [2]
    2. Spraying device (10) according to claim 1, wherein the pressure regulating piston (28) is designed to control the pressure prevailing in the injection piston chamber (22) pressure.
    [3]
    3. spraying device (10) according to claim 1 or 2, wherein the mixing and / or dosing plant for mixing and / or dosing a two-component material, in particular a two-component silicone or a two-component elastomer is designed.
    [4]
    4. spraying device (10) according to at least one of the preceding claims, wherein an injection piston drive (78) is provided, which is designed for displacing the injection piston (20).
    [5]
    5. spraying device (10) according to claim 4, wherein the injection piston drive (78) comprises a pneumatic drive, a hydraulic drive or an electric linear drive.
    [6]
    6. spraying device (10) according to at least one of the preceding claims, wherein a pressure regulating piston drive (80) is provided, which is designed for displacing the pressure regulating piston (28).
    [7]
    7. spraying device (10) according to claim 6, wherein the pressure regulating piston drive (80) comprises a pneumatic drive, a hydraulic drive or an electric linear drive.
    [8]
    8. spraying device (10) according to claim 6 or 7, wherein a control device (82) is provided, which is designed for controlling the pressure regulating piston drive (80) based on the pressure prevailing in the injection piston chamber (22).
    [9]
    9. spraying device (10) according to at least one of the preceding claims, wherein a pressure sensor (88) is provided, which is designed for measuring a in the injection piston chamber (22) prevailing pressure.
    [10]
    10. spraying device (10) according to at least one of the preceding claims, wherein the spraying device (10) comprises a pressure regulating and metering unit (14), wherein the pressure regulating and metering unit (14) the pressure regulating piston (28) and a connection (30) for the Mixing and / or dosing includes.
    [11]
    11. Spraying device (10) according to at least one of the preceding claims, wherein a first check valve (58) is provided, which is arranged between the mixing and / or metering and the pressure control piston chamber (32), and wherein a second check valve (60) is provided is, which is arranged between the pressure regulating piston chamber (32) and the injection piston chamber (22).
    [12]
    12. spraying device (10) according to claim 11, wherein the first and the second check valve (58, 60) are designed as ball check valves.
    [13]
    13. Spraying device (10) according to at least one of the preceding claims, wherein the injection piston (20) and / or the pressure regulating piston (28) have a radial seal (36) extending towards the injection piston chamber (22) and / or the pressure regulating piston space (32). widened radially conically.
    [14]
    14. Spray system, in particular small spray system, with an injection device (10) according to at least one of claims 1 to 13, which is designed for spraying a first material into a cavity of an injection molding tool, and with a second injection device for spraying a second material in the Cavity of the injection mold is designed.
    [15]
    15. A method for operating an injection device (10), in particular an injection device of a small spray system, further in particular an injection device (10) according to at least one of claims 1 to 13, wherein the injection device (10) displaceable in a cylinder (16) injection piston (20 ), which defines an injection piston space (22) and for conveying a first material from the injection piston space (22) is designed in the cavity of an injection molding tool, and wherein the injection device (10) comprises a mixing and / or dosing, which for conveying the the first material into the injection piston chamber (22) is designed, wherein the injection device (10) has a in a cylinder (24) displaceable pressure control piston (28) defining a piston chamber (32) which is hydraulically connected to the injection piston chamber (22), characterized in that during the conveyance of the first material into the injection piston chamber (22) a pressure regulation of the in the injection piston chamber (22) prevailing pressure by actively displacing the pressure regulating piston (28).
    [16]
    16. A method for operating a spray system according to claim 14, characterized in that first with the second injection device, the second material is injected into the cavity of the injection mold and that then with the first injection device (10) according to the method of claim 15, the first material in the cavity of the injection mold is injected.
    类似技术:
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    DE2416780C3|1981-04-02|Sprue device for mixing at least two liquid components of a particularly cell-forming plastic
    DE4315761A1|1994-11-17|Device for inserting glue into holes
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    同族专利:
    公开号 | 公开日
    CH713408B1|2021-06-15|
    DE102017100953A1|2018-07-19|
    AT519591A3|2020-11-15|
    AT519591A2|2018-08-15|
    DE102017100953B4|2019-07-18|
    AT519591B1|2020-12-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JP3146368B2|1991-11-11|2001-03-12|東芝機械株式会社|Continuous plasticization type injection molding method|
    JP3303213B2|1992-06-11|2002-07-15|東芝機械株式会社|Continuous plasticizing injection molding method and apparatus|
    JP3423963B2|1997-12-01|2003-07-07|新潟鐵工成形機株式会社|Injection molding machine|
    DE19803422A1|1998-01-29|1999-08-05|Remaplan Anlagenbau Gmbh|Method and device for the injection molding of fiber-reinforced plastics|
    JP3620380B2|1998-12-25|2005-02-16|株式会社村田製作所|Injection molding machine for thermoplastic resin|
    DE10118486B4|2001-04-12|2009-08-13|Sumitomo Demag Plastics Machinery Gmbh|Injection molding machine injection unit with continuous plasticizing unit|
    RU2671333C2|2014-03-11|2018-10-30|Тетра Лаваль Холдингз Энд Файнэнс С.А.|Control method for injection moulding|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102017100953.1A|DE102017100953B4|2017-01-18|2017-01-18|spraying device|
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