• 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:
    Vertical two-platen clamping unit (1) for an injection molding machine, comprising a stationary base plate (2), a vertically movable relative to the base plate plate (3) and at least one turntable (14) between the base plate (2) and movable plate (3) can be arranged, between the base plate (2) and turntable (14) at least one sliding table (13) is arranged, so that the turntable (14) from the area between the base plate (2) and movable plate (3) can be moved in and out.
    公开号:AT513291A2
    申请号:T9842012
    申请日:2012-09-07
    公开日:2014-03-15
    发明作者:Herbert Dipl Ing Zeidlhofer
    申请人:Engel Austria Gmbh；
    IPC主号:
    专利说明:

    72041 32 / fr
    The present invention relates to a closing unit for a vertical injection molding machine having the features of the preamble of claim 1, an injection molding machine having such a closing unit, and a method for producing hybrid injection molded parts using such an injection molding machine.
    Generic clamping units are known, for example, from EP 0 629 487 A1 or DE 41 01 106 A1. In these documents closing units of a vertical injection molding machine are disclosed, which have a turntable. Through this turntables mold halves of an injection mold can be rotated. This allows the production of two-component injection molded parts.
    It is becoming increasingly important to produce hybrid injection molded parts cost-effectively in large quantities. Such hybrid injection molded parts have, in addition to a two-component or multi-component injection-molded part, a fabric carrier which, for example, improves the elasticity or similar properties of the hybrid injection-molded part. Although closing units, such as those disclosed in the abovementioned publications, can be used for producing such hybrid injection-molded parts. However, this has the disadvantage that some preparatory or intermediate steps that are not related to injection molding, must be performed in the area between the platens. Because of the lack of space prevailing there, this does not place requirements on handling devices that have to be underestimated that have to be dealt with in such steps. On the one hand, this leads to an increase in the cost of the production process and, on the other hand, to a slowdown in it.
    The object of the present invention is to remedy the disadvantages discussed.
    This object is achieved by a vertical two-plate clamping unit having the features of claim 1, a vertical injection molding machine with such a closing unit and a method using such a vertical injection molding machine. 2/17 72041 32 / fr
    This is done by a sliding table is arranged between the lower platen, here and hereinafter called the base plate, and the turntable through which the turntable optionally together with a mold half from the area between the base plate and the upper platen, here and below called movable plate - and ausbringbar is.
    Vertical clamping units according to the invention can also be used, for example, in transfer molding presses. However, not generic are horizontal injection molding machines, as they emerge for example from DE 36 37 166 A1. Although these also have both a rotary and a sliding table. However, these serve a completely different purpose and therefore can not be considered a solution to the problem outlined.
    Further advantageous embodiments of the invention are defined in the dependent claims.
    It can be provided that the sliding table is mounted on a force accumulator, so that when the turntable is introduced into the region between the base plate and the movable plate, the sliding table is spaced from the base plate. During the subsequent closing of the closing unit, the sliding table is set down on the base plate. This can be done actively, for example by changing a pressure in a hydraulic cylinder, or passively, for example by pressure of the movable plate on the sliding table mounted with a spring element. If, for example, after an injection molding operation, the closing unit is then opened again, the energy storage device lifts the sliding table again from the base plate.
    This is useful for a low-friction linear movement of the sliding table.
    The energy accumulator can be designed as a hydraulic or magnetic piston-cylinder unit or as a spring - in particular a leaf spring - or as an air cushion. In this case, the air cushion is preferably produced by introducing compressed air into a gap between the base plate and the sliding table through a multiplicity of nozzles. The pressure is typically a maximum of 10 3/17 • · · 72041 32 / fr ΐ «· * ··« «·· ·· V · * ♦ · · ·« · · · · · · · · ·· ·· · · · ·· · bar. Furthermore, it may be advantageous by a rubber apron to prevent the escape of compressed air from the gap at least partially.
    Furthermore, an embodiment is preferred in which the turntable and / or the sliding table have a tooth profile and these are rotatable or displaceable by interaction with toothed wheels driven by drive units. These drive units can be operated approximately electrically, electromagnetically, pneumatically or hydraulically. This solution can be carried out particularly easily tolerant to the above-described lifting and lowering movements of the sliding table. But other designs, such as the use of a ball screw or cylinders, are conceivable without further notice.
    Particularly preferred is an embodiment in which two turntables are provided, which are alternately on two sliding tables in the area between base plate and movable plate and be brought out. Downtimes of the injection molding machine, which are due to other necessary work steps, can thus be shortened, and so the production time of a hybrid injection molded part can be further reduced. Of course, embodiments are conceivable that have only a sliding table for two turntables or more than two turntables with a corresponding number of sliding tables.
    In a further embodiment of the invention, spars are provided which pass through the base plate and the movable plate and which are guided both in the base plate and in the movable plate and are movable relative thereto. There may be provided pressure cushions through which the spars can be set to build a closing force under tension. In this case, the pressure in the pressure pad can be generated approximately hydraulically, electrohydraulically and / or electromagnetically.
    To guide the spars in the base plate and / or the movable plate sockets can be arranged on the plates. 4/17 • · • · 72041 32 / fr • · • · 72041 32 / fr • · • · ♦ · · ♦ · Λ · · · ··· «♦ ·
    Furthermore, a locking device for locking the spars with the movable plate may be provided on the closing unit, wherein the lock is preferably form-fitting. This locking device can be designed as an electrical, electromagnetic or hydraulic locking device.
    Particularly preferred is an embodiment in which the at least one turntable is designed as a mold carrier for a mold half of an injection mold and / or as an index plate.
    The closing unit may be formed frame-free.
    In a further embodiment of the invention can be provided for moving the movable plate in the vertical direction - preferably electromechanical or hydraulic - Eilhubvorrichtung.
    Preferably, the movable plate is based only on the Eilhubvorrichtung on the
    Base plate or on the ground.
    Protection is also desired for an injection molding machine having at least one plasticizing unit for at least one injection molding component, at least one injection unit for injecting the plasticized at least one injection molding component into a mold and at least one vertical two-platen clamping unit according to the invention.
    Furthermore, protection is sought for a process for the production of
    Hybrid injection molded parts, wherein - preparatory operations are performed on or in mold cavities of a mold half outside the area between the base plate and movable plate, - the mold half is introduced through the sliding table in the region between the base plate and movable plate, - injection molded in a first injection molding part of the hybrid injection molded part is, - the mold half is rotated by the turntable, in a second injection molding step, a further part of the hybrid injection molded part is injection molded and, - the mold half is discharged through the sliding table from the area between the base plate and movable plate.
    In a preparatory step, it may be the introduction of fiber reinforced mats or heating them.
    In a further embodiment of the method it can be provided that - while one mold half is in the area between the base plate and the movable plate - preparatory work steps are carried out on or in the mold cavities of a further mold half, - after the one mold half has been ejected from the area between the base plate and the moveable plate is, the further mold half is introduced through a sliding table in the area between the base plate and movable plate, - is injection molded in a third injection molding a part of a second injection molded part, - the other mold half is rotated by a turntable, - in a fourth injection molding another part the second hybrid injection-molded part is injection-molded and, - the further mold half is discharged through a sliding table from the area between the base plate and the movable plate.
    Of course, in so-called RTM processes, in which thermosetting plastics are processed, similar process steps can be used to increase productivity.
    Further advantages and details of the invention will become apparent from the figures and the associated description of the figures. It goes without saying that the measures shown in the figures as a combination can also be used independently or in sub-combinations. 6/17 72041 32 / fr 72041 32 / fr FIG. 1
    Fig. 2a
    Fig. 2b
    Fig. 2c Fig. 3 is a perspective view of a vertical two-plate clamping unit according to the invention with laterally arranged injection unit and a combination of turntable and sliding table, a schematic side view of the clamping unit, wherein the turntable is applied from the area between the base plate and movable plate, a schematic side view of the closing unit in the open state, wherein the turntable is introduced into the region between the base plate and movable plate, a schematic side view of the closed clamping unit and a schematic plan view of an injection molding machine with two turntable sliding table combinations.
    FIG. 1 shows a perspective view of the injection molding machine 7. The plasticizing unit 10, the injection unit 12 and the closing unit 1 can be seen. The closing unit 1 has a sliding table 13 and a turntable 14 mounted thereon. Furthermore, the stationary base plate 2, the movable plate 3 and the spars 4 can be seen. In addition, the Eilhubvorrichtung 9 is shown, which serves the rapid lifting of the movable plate 3. The locking device 5 for locking the spars 4 with the traversing plate 3 can also be seen. Furthermore, pressure pads 6 can be recognized by which the closing force of the closing unit 1 can be established.
    Figure 2 shows a schematic side view of the clamping unit 1, wherein (a) the turntable 14 from the area between the base plate 2 and movable plate 3 is deployed and the clamping unit 1 is opened, (b) the turntable 14 in the region between the base plate 2 and movable plate 3 is inserted and the clamping unit 1 is opened, (c) the turntable 14 is inserted into the area between the base plate 2 and the movable plate 3 and the closing unit 1 is closed. Evident are respectively the base plate 2 and the movable plate 3 and the spars 4 and the sockets 8 on the plates for the spars 4. The movements of the turntable 14 and the sliding table 13 are driven by the drive units 15. The rollers 16 are spring-mounted, the energy storage is thus designed as a spring. 7/17 72041 32 / fr
    A schematic plan view of an injection molding machine 7 with injection unit 12, plasticizing unit 10 and closing unit 1 can be seen in FIG. The embodiment of the invention shown here in each case has two turntables 14 and two slide tables 13. In this case, 14 non-spraying operations can be performed on a turntable, while the other turntable 14 is in the clamping unit 1.
    Innsbruck, on 06.09.2012 8/17
    权利要求:
    Claims (21)
    [1]
    72041 32 / fr ·· »· · ·» · · · · · · «················································································ A vertical two-plate clamping unit (1) for an injection molding machine, comprising - a stationary base plate (2), - a movable in the vertical direction relative to the base plate (3) and - at least one turntable (14) between the base plate (2) and the movable plate (3) can be anördenbar, characterized in that between the base plate (2) and turntable (14) at least one sliding table (13) is arranged so that the turntable (14) from the area between the base plate (2 ) and movable plate (3) on and ausbringbar.
    [2]
    2. Vertical two-plate clamping unit according to claim 1, wherein the sliding table (13) is mounted on a force accumulator, so that the sliding table (13) of the base plate (2) spaced in the area between the base plate (2) and movable plate (3 ) is on and ausbringbar and the sliding table (13) on the base plate (2) is deductible.
    [3]
    3. Two-plate clamping unit according to claim 2, wherein the energy accumulator is designed as a hydraulic or magnetic piston-cylinder unit, as a spring - in particular a leaf spring - or as an air cushion.
    [4]
    4. Two-plate clamping unit according to at least one of claims 1 to 3, wherein the turntable (14) and / or the sliding table (13) have a tooth profile and this (this) rotatable by interaction with driven by drive units (15) gears or are displaceable (is).
    [5]
    5. Two-plate clamping unit according to claim 4, wherein the drive units (15) are electrically, electromagnetically, pneumatically and / or hydraulically.
    [6]
    6. Two-plate clamping unit according to at least one of claims 1 to 5, wherein two turntables (14) are provided, which via two sliding tables (13) 9/17 • · · · · • · 72041 32 / fr 2 ·· * * · * •········· · alternately in the area between the base plate (2) and movable plate (3) can be moved in and out.
    [7]
    7. Two-plate clamping unit according to at least one of claims 1 to 6, wherein spars (4) are provided, which pass through the base plate (2) and the movable plate (3) and which in both the base plate (2) and in guided the movable plate (3) and are movable relative to these.
    [8]
    8. Two-plate clamping unit according to claim 7, wherein pressure pads (6) are provided, through which the spars (4) can be set to build a closing force under tension.
    [9]
    9. Two-plate clamping unit according to claim 7 or 8, wherein in the base plate (2) and / or in the movable plate (3) for guiding the bars (4) sockets (8) are arranged.
    [10]
    10. Two-plate clamping unit according to claim 8 or 9, wherein the closing force in the pressure pad (6) is hydraulically, electro-hydraulically and / or electromagnetically generated.
    [11]
    11. Two-plate clamping unit according to at least one of claims 1 to 10, wherein a locking device (5) for locking the spars (4) with the movable plate (3) is provided.
    [12]
    12. Two-plate clamping unit according to claim 11, wherein the locking device (5) is positively lockable.
    [13]
    13. Two-plate clamping unit according to claim 11 or 12, wherein the locking device (5) as an electrical, electromagnetic or hydraulic locking device (5) is formed.
    [14]
    14. The two-plate clamping unit according to at least one of claims 1 to 13, wherein the at least one turntable (14) is designed as a mold carrier for a mold half. 10/17

    ·················· 72041 32 / fr
    [15]
    15. Two-plate clamping unit according to at least one of claims 1 to 14, wherein the at least one turntable (14) is designed as an index plate.
    [16]
    16. Two-plate clamping unit according to at least one of claims 1 to 15, wherein the two-plate closing unit (1) is designed frame-free.
    [17]
    17. Two-plate clamping unit according to at least one of claims 1 to 16, wherein for moving the movable plate (3) in the vertical direction - preferably electromechanical or hydraulic - Eilhubvorrichtung (9) is provided.
    [18]
    18. Two-plate clamping unit according to claim 17, wherein the movable plate (3) is supported only on the Eilhubvorrichtung (9) on the base plate (2) or on the ground.
    [19]
    19. An injection molding machine (7) comprising: - at least one plasticizing unit (10) for at least one injection molding component, - at least one injection unit (12) for injecting the plasticized at least one injection molding component into a mold and - at least one vertical two-platen closing unit (1) according to at least one of claims 1 to 18.
    [20]
    20. A method for producing hybrid injection molded parts using an injection molding machine (7) according to claim 19, wherein - outside the area between the base plate (2) and movable plate (3) preparatory steps are performed on or in the mold cavities of a mold half, - the mold half through the Sliding table (13) is introduced into the area between the base plate and the movable plate, - in a first injection molding step, a part of the hybrid injection molded part is injection-molded, - the mold half is rotated by the rotary table (14), 11/17 4 ·· ·· · · · In a second injection molding step, a further part of the hybrid injection molded part is injection molded and the mold half is ejected out of the area between the base plate and the movable plate by the sliding table (13).
    [21]
    21. Method according to claim 20, wherein - while one mold half is in the area between the base plate (2) and the movable plate (3) preparatory work steps are carried out on or in mold cavities of a further mold half, - after the one mold half has reached the area between the base plate ( 2) and movable plate (3) is applied, the further mold half is introduced by a sliding table (13) in the region between the base plate and movable plate, - is injection molded in a third injection molding a part of a second injection molded hybrid part, - the further mold half by a Turning table (14) is rotated, - in a fourth injection molding step, a further part of the second hybrid injection molded part is injection molded and, - the further mold half by a sliding table (13) from the area between the base plate (2) and movable plate (3) is applied. Innsbruck, on 06.09.2012 12/17
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    同族专利:
    公开号 | 公开日
    CN103660209A|2014-03-26|
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    AT513291B1|2015-05-15|
    AT513291A3|2015-02-15|
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    CN103660209B|2016-08-24|
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    法律状态:
    2021-05-15| MM01| Lapse because of not paying annual fees|Effective date: 20200907 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA984/2012A|AT513291B1|2012-09-07|2012-09-07|Vertical two-platen clamping unit, injection molding machine and process for producing hybrid injection molded parts|ATA984/2012A| AT513291B1|2012-09-07|2012-09-07|Vertical two-platen clamping unit, injection molding machine and process for producing hybrid injection molded parts|
    DE102013014617.8A| DE102013014617B4|2012-09-07|2013-09-02|Vertical two-platen clamping unit, injection molding machine and process for producing hybrid injection molded parts|
    CN201310401742.0A| CN103660209B|2012-09-07|2013-09-06|The double plate closing unit of vertical and the method manufacturing mixing diecast parts|
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