专利摘要:

公开号:AT510082A2
申请号:T9352011
申请日:2011-06-28
公开日:2012-01-15
发明作者:
申请人:Wema Gmbh;
IPC主号:
专利说明:

Ejector package for a Kunststoffspritzwerkzeuq
The invention relates to an ejector package for a plastic injection tool for mounting on a machine shield of a plastic injection machine according to the protection claim 1.
Plastic injection tools are regularly provided with a so-called Auswerferpaket, which serves to eject the plasticized plastic product from the tool. Such an ejector package essentially comprises a clamping plate for attachment to a machine shield of a plastic injection molding machine and a relative to this displaceable ejector pressure plate. The ejector pressure plate usually receives ejector pins, which apply the release pressure to the ejected plasticized product.
A problem with the ejector packages in the prior art is that in the device of the plastic injection molding machine and the assembly of the tool, the ejector pressure plate can move relative to the platen, which is a considerable
Risk of injury. In addition, this may damage the ejector pins received by the ejector pressure plate.
The invention aims to remedy this situation. The invention has for its object to provide an ejector package for a plastic injection tool, in which a relative movement between the clamping plate and ejector pressure plate is avoided in the tool assembly. According to the invention, this object is solved by the features of the characterizing part of patent claim 1.
The invention provides an ejector package for a plastic injection molding tool in which a relative movement between the clamping plate and the ejector pressure plate during tool mounting is avoided.
In a further development of the invention, the means for automatic fixing comprise a lever, via which the ejector pressure plate can be locked on the clamping plate. In this case, the lever is preferably pivotally mounted in the platen and has a cantilevered nose, which engages behind a projection of a mounted on the ejector pressure plate holding member in the locked position. By opening / closing the Hpc Heb®! * Is * ttri ^ ae in and out of Aufsoonnolattc and ejector pressure plate allows.
In a further development of the invention, the holding element is formed by a pin which is connected to the ejector pressure plate. As a result, a simple locking mechanism is possible.
In an embodiment of the invention, the lever protrudes on its side opposite the retaining element side of its pivot axis in the locked state on the machine shield side facing the platen from this. As a result, a pivoting of the lever is effected at the stop on the machine plate, whereby the release between the lever and pin is effected.
In a further embodiment of the invention, the lever is biased by a spring such that the projecting nose of the lever is pressed in the direction of the retaining element of the ejector. As a result, an automatic locking is effected upon removal of the lever from the machine plate.
In a further development of the invention, the spring bears against the lever on the side of a pivot axis opposite its nose. This is. achieved a space-saving design of the locking mechanism. Preferably, the spring is a helical compression spring.
In a further embodiment of the invention, the lever is integrated in a securing block, which is introduced into the clamping plate. As a result, a simple integration of the locking unit is made possible in the platen. A retrofitting of existing ejector packages can be realized in this way.
The invention furthermore relates to a securing block for fixing a ejector plate having a holding element to a clamping plate of an ejector package. This fuse block can be fastened in a stepped bore of a clamping plate. The pivotally mounted, a projecting nose having lever engages in a pivoting position, the retaining element of the ejector plate, whereby a fixing of the clamping plate on the ejector plate can be achieved. Preferably, a spring is arranged, via which the lever is biased in the pivoting direction of his nose.
Other developments and refinements of the invention are specified in the remaining subclaims. An embodiment of the invention is illustrated in the drawing and will be described in detail below. Show it:
1 shows the schematic representation of an ejector package in the disassembled state;
FIG. 2 shows the illustration of the ejector package from FIG. 1 in the installed state on a machine plate; FIG.
Fig. 3 is a schematic representation of the fuse block of the ejector package of Figure 1 with applied pin;
Fig. 4 shows the fuse block of Figure 3 in a spatial representation and
5 shows the spatial representation of the main body of the fuse block from FIG. 4.
The ejector package 1 selected as an exemplary embodiment essentially comprises an ejector pressure plate 2, which is mounted displaceably opposite a clamping plate 3.
The ejector pressure plate 2 has a stepped bore 20, which receives a screw 23. The screw 23 engages in a threaded bore 222 of an oppositely disposed pin 22, via which the pin 22 is fastened to the ejector pressure plate 2. In this case, the stepped bore is provided on its side facing the pin 22 with a step into which the pin 22 engages. Opposite the pin 22 is also arranged a step which receives the head of the screw 23. On its side opposite the pin 22, an ejector-holding plate 21 is arranged on the ejector pressure plate 2.
Between ejector pressure plate 2 and ejector retaining plate 21 are usually further elements, in particular - not shown - ejector pins or other ejector units arranged.
The pin 22 is formed substantially cylindrical. At its end opposite the ejector pressure plate 2, a peripheral shoulder 221 is integrally formed on the pin 22.
The clamping plate 3 is provided with a stepped bore 31, on whose side facing away from the ejector pressure plate 2 a shoulder 32 is formed on which a securing block 4 is applied. On its side facing the fuse block 4 an insulating plate 33 is mounted on the platen 3, which has a bore 34 which is aligned with the stepped bore 31 of the clamping plate 3 and rests against the fuse block 4.
The Sicherungsbiock 4 consists essentially of a bearing-shaped base body 40 in which an angled to the orthogonal trained channel 41 for receiving a lever 43 is arranged. Transverse to the channel 41 is a horizontal bore 421 for receiving an axle 42 is introduced, via which the
Lever 43 is pivotally mounted in the channel 41. The lever 43 has at its ejector pressure plate 2 side facing a projecting in the direction of the pin 22 nose 34. At its nose 431 opposite end of the lever 43 is rounded. This rounded end protrudes from the channel 41 in a stop position of the lever 43 within the channel 41. Also, the opposite, provided with a nose 431 end of the lever 43 protrudes on the opposite side of the base body 40 out of this. Approximately orthogonal to the lever 43, a compression spring 44 is arranged in a arranged in the base body 40 channel 441, which engages in an opening provided in the lever 43 recess 432. The lever 43 is biased by the compression spring 44 against the compression spring 44 opposite inner wall of the channel 41.
On the outside, the base body 40 of the securing block 4 is peripherally provided with a phase 45 on its side facing the clamping plate 3.
In Figure 1, the ejector 1 is shown in the disassembled state. The nose 431 of the lever 43 engages the shoulder 221 of the pin 22, whereby the ejector pressure plate 2 is fixed to the platen 3. The lever 43 is biased by the compression spring 44 such that the nose 431 of the lever 43 is pressed in the direction of the pin 22. As can be clearly seen, the nose 431 opposite rounded end of the lever 43 protrudes from the plane formed by the insulating plate 33. If the clamping plate 3 attached to the machine plate of a plastic injection molding machine, the rounded end of the lever 43 is pressed into the channel 41 of the base body 4, whereby the lever 43 is pivoted about its axis 42. By this pivotal movement, the nose 431 of the lever 43 is moved away from the shoulder 221 of the pin 22, whereby the pin 22 is released. The stepped bore 20 of the ejector pressure plate 2 is dimensioned such that a sufficient pivoting of the lever 43 is made possible. Upon renewed disassembly of the ejector, the lever 43 is pressed by the pressure plate 44 on removal of the platen 3 of the machine plate 5 turn in the direction of pin 22, wherein the nose 431 of the lever 43 engages behind the shoulder 221 of the pin 22, whereby the ejector pressure plate 2 again the clamping plate 3 is fixed.
权利要求:
Claims (7)
[1]
1. ejector package for a plastic injection molding tool for mounting on a machine plate of a plastic injection molding machine, comprising a platen and a relative to this displaceable ejector pressure plate, characterized in that means for automatically fixing the ejector from jerk plate (2) on the platen (3) during disassembly of the Auswerferpakets (1) of the machine plate (5) are provided.
[2]
2. ejector package according to claim 1, characterized in that the means for automatic fixing comprise a lever (43) via which the ejector pressure plate (2) on the clamping plate (3) is fixable bar.
[3]
3. ejector package according to claim 2, characterized in that the lever (43) is pivotally mounted in the clamping plate (3) and a projecting nose (431) which engages in the locked position a projection (221) of a mounted on the ejector pressure plate holding member ,
[4]
4. ejector package according to claim 3, characterized in that the holding element is formed by a pin (22) which is connected to the ejector pressure plate.
[5]
5. ejector package according to claim 3 or 4, characterized in that the lever (43) on its side opposite the holding element side of its pivot axis (42) in the locked state on the machine plate (5) facing side of the clamping plate (3) protrudes from this.
[6]
6. ejector package according to one of claims 3 to 5, characterized in that the lever (43) via a spring (44) is biased such that the projecting nose (431) of the lever (43) in the direction of the holding element of the ejector pressure plate (2 ) is pressed.
[7]
7. ejector package according to claim 6, characterized in that the spring (44) on the nose (431) opposite side of its pivot axis (42) against the lever (43). Ejector package according to claim 6 or 7, characterized in that the spring (44) is a helical compression spring. Ejector package according to one of claims 2 to 8, characterized in that the lever (43) in a fuse block (4) is integrated, which is introduced into the clamping plate (3). Fuse block for fixing an ejector pressure plate (2) on a clamping plate (3) of an ejector package (1), wherein in the fuse block (4) a cantilevered nose (431) having lever (43) is pivotally inserted, such that in a pivoting position of the Levers (43) both its nose (431) and its nose (431) opposite end protrude from the fuse block. Fuse block according to claim 10, characterized in that a spring (55) is arranged, via which the lever (43) in the pivoting direction of its nose (431) is biased.
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同族专利:
公开号 | 公开日
AT510082B1|2014-06-15|
DE202010009588U1|2010-10-14|
DE102011105668B4|2012-10-04|
AT510082A3|2013-12-15|
DE102011105668A1|2011-12-29|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题

DE3003387A1|1980-01-31|1981-08-06|Geyer Werkzeugbau GmbH & Co KG, 5880 Lüdenscheid|Locking system for triple tool injection mould - has pawl lock operating by movement of pin over contoured bar|
DD158376B1|1981-04-16|1986-02-05|Robotron Bueromasch|SPREADER FOR INJECTION MOLDING FOR STRIPPING SMALL EASY SPRAY PARTS|
JPH0639101B2|1989-07-01|1994-05-25|株式会社栄進モールド|Molding die clamping mechanism|
JPH0477213A|1990-07-19|1992-03-11|Fanuc Ltd|Mold clamper|
DE4337942A1|1993-11-06|1995-05-11|Meusburger Georg Gmbh|Latch pull for moulds having a plurality of parting planes|CN102672910B|2012-05-21|2014-07-23|昆山鑫泰利精密模具有限公司|Rocker male mold core-pulling mechanism|
DE102014000267B4|2014-01-09|2016-02-11|Meusburger Georg GmbH & Co. KG|Securing device for moving plates in a spray or die casting mold|
法律状态:
2017-02-15| MM01| Lapse because of not paying annual fees|Effective date: 20160628 |
优先权:
申请号 | 申请日 | 专利标题
DE201020009588|DE202010009588U1|2010-06-26|2010-06-26|Ejector package for a plastic injection tool|
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