EP2121276A1 - Procédé et système pour le montage et le démontage de la vis de plastification - Google Patents

Procédé et système pour le montage et le démontage de la vis de plastification

Info

Publication number
EP2121276A1
EP2121276A1 EP07847719A EP07847719A EP2121276A1 EP 2121276 A1 EP2121276 A1 EP 2121276A1 EP 07847719 A EP07847719 A EP 07847719A EP 07847719 A EP07847719 A EP 07847719A EP 2121276 A1 EP2121276 A1 EP 2121276A1
Authority
EP
European Patent Office
Prior art keywords
coupling
clamping
plasticizing screw
drive
shells
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07847719A
Other languages
German (de)
English (en)
Inventor
Robert Weinmann
Placi Wenzin
Marcel Zahner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Netstal Maschinen AG
Original Assignee
Netstal Maschinen AG
Maschinenfabrik und Giesserei Netstal AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Netstal Maschinen AG, Maschinenfabrik und Giesserei Netstal AG filed Critical Netstal Maschinen AG
Publication of EP2121276A1 publication Critical patent/EP2121276A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/1775—Connecting parts, e.g. injection screws, ejectors, to drive means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/176—Exchanging the injection unit or parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
    • B29C45/50—Axially movable screw
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49815—Disassembling
    • Y10T29/49822—Disassembling by applying force
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53687—Means to assemble or disassemble by rotation of work part

Definitions

  • the invention relates to a method for assembling and disassembling the plasticizing screw from a piston or drive stub of a worm drive system of an injection molding machine by means of a releasable coupling, wherein the worm drive system is designed for a controlled linear and rotary movement of the plasticizing screw.
  • the invention further relates to a device for mounting and dismounting the plasticizing screw of a piston or drive stub of a controlled worm drive system of an injection molding machine by means of a releasable coupling.
  • the core parts of injection molding machines consist on the injection side of the entire injection unit, which contains the injection unit and the drive system for the plasticizing screw and the plasticization with the plasticizing screw.
  • the entire injection unit is mounted displaceably by special drives, so that the nozzle tip of the plasticization can be moved to the injection opening of the injection tool and moved away and pressed.
  • the central auxiliary function with regard to plasticizing is the assembly and disassembly of the injection molding machine. Assembly and disassembly is required if a different size or screw geometry must be used or, for example, before longer Downtime when both parts need to be cleaned.
  • the plasticization consists of a plasticizing cylinder, a plasticizing screw and a granule feed hopper. When dismantling, the granulate feed hopper must first be loosened and released with respect to the plasticizing cylinder so that the plasticizing screw with the plasticizing screw can be lifted out of the machine with the aid of a machine crane and reused during assembly.
  • the largest forces in the injection unit as well as the plasticizing cylinder and the plasticizing cylindrical screw occur in an injection molding machine. Only the axial forces from the maximum pressure build-up in the injection mold can be between 10 and 50 t, ie forces such as occur during punching and forging. All components of an injection molding machine, on which the greatest forces act, are designed correspondingly massive. Of course, this also applies to the worm clutch and the cylinder clutch. Each coupling half is connected via several large-sized coupling screws.
  • the weight of the cantilevered plasticizing cylinder is primarily carried over the cylinder coupling.
  • the worm clutch has to transmit the large axial forces for the maximum pressure build-up as well as the rotary forces for the shot-wise melt dosing of the two worm drives.
  • the worm drive system has for this purpose two independently controllable drive motors, for example servomotors. Both movements are transmitted via a gear block and a drive stub.
  • the worm clutch connects the drive stub directly to the plasticizing worm.
  • a toothed shaft engagement such as a toothed shaft engagement.
  • a threaded connection for example according to GB 1 094 037.
  • Another, cheaper coupling is a kind Bridenthetic in which two clampable half shells connect the drive stub with the corresponding end of the plasticizing screw by means of clamping screws.
  • a toothed shaft or threaded connection is optimal for centering the plasticizing screw.
  • a bridenthetic is cheaper, but can bring in terms of centering disadvantages.
  • the solutions of the prior art are disadvantageous in that the assembly and disassembly of the plasticizing takes a lot of time and the cost expenditure for the relevant components is relatively large.
  • the invention has now been the object of finding a solution that safely transmits all occurring forces, provides optimal centering, is inexpensive to manufacture and the time required for mounting and dismounting the plasticizing screw is small.
  • the inventive method is characterized in that the coupling takes place via mechanical clamping means, wherein the rotational drive force and the worm retraction force transmitted via frictional engagement and the axial injection force via a stop and the assembly and disassembly process controlled by the worm drive system is supported.
  • the inventive device is characterized in that the coupling parts are designed as releasable clamping means, such that the rotational drive force and the worm retraction force via frictional engagement and the axial injection force can be transmitted via an axial stop.
  • the new invention opens up three design ideas, on the one hand a mechanical and on the other hand, a hydraulic or a heat coupling process.
  • the inventive method is based on the fact that the injection molding machine or the screw drive system is designed for a controlled linear and rotary movement of the plasticizing screw, both of which are power monitored for the entire injection molding or injection molding cycle.
  • the new invention utilizes this by supporting the assembly and disassembly process with two corresponding additional utilities in the control of the worm drive system. This results in an ideal combination of mechanical coupling means with an auxiliary control and monitoring of the respective positions during assembly and disassembly.
  • the plasticizing screw is fixed axially for the coupling process after assembly of the plasticizing and the piston or drive stub slightly rotationally and force monitored in the direction of a plasticizing screw coupling part driven up. It uses the controller for a trouble-free coupling, as a setter would do it by hand. The one part is not simply pushed into the other, but rather introduced by gently turning. An error situation would be reported immediately by the force monitoring or prevent a corresponding fault.
  • the ancillary movement is stopped with an axial residual play and the piston or drive stub sensor-monitored rotated until the clamping screws assume an optimal clamping position, the clamping screws are tightened and the plasticizing screw fixation is released. The remaining play until a complete stop of the coupling parts is lifted only with the first injection molding cycle on the melt pressure.
  • the procedure is reversed, according to a disassembly program.
  • the plasticizing screw is moved to a forward screw position, rotated in an optimal position for loosening the clamping screws and the plasticizing screw axially fixed. After loosening the clamping screws, the coupling parts are pulled apart under slight rotational movement of the piston or drive stubby force monitored.
  • the axial fixation of the plasticizing screw by means of a bolt and the compression fitting by hand.
  • the first advantage is that the coupling parts are made of the full material of the drive stub, so that less waste is generated.
  • the second advantage is that with a blind hole in the drive stub in one operation, the whole inner clamping form can be produced.
  • the third advantage results from a centering of the plasticizing screw in the drive stub during the clamping or in the coupled state.
  • the centering hole is formed as a blind hole, wherein the blind hole end forms a stop surface for the plasticizing screw coupling part.
  • the center hole is in the unattenuated part of the drive stub and at the same time forms the rear stop when mounting the plasticizing screw for transmitting the largest axial forces from the maximum pressure build-up in the injection mold.
  • both half shells are formed on the drive stub itself and are integrally part of the drive stub. However, they are separated in the direction of the plasticizing screw axis for mutual clamping parallel to the axis of rotation. Thus, the drive stub itself forms the whole clutch. Apart from the clamping screws, no further coupling parts are required.
  • This solution is not only very inexpensive to manufacture, but also offers the possibility to produce the coupling parts with the least possible waste. In the case of production by die forging almost no waste is generated. Preferably, the separation extends beyond the range of clamping screws out into the vicinity of the stop surface.
  • annular recess is arranged in the drive stub directly in front of the stop surface in the direction of the clamping coupling in order to increase a spring effect for the clamping of the two half shells.
  • the two half shells are preferred by a Drill hole produced in the drive stub, which is by a small clearance in the range of tenths of a millimeter larger than the corresponding plasticizing screw coupling part. It is also possible that spacer elements are provided for bridging different diameters of the plasticizing screw coupling part between the half-shells.
  • the clamping coupling has two half shells and a tab connection, wherein the half shells and the tab connection have an internal shape adapted to the plasticizer screw coupling part.
  • the tab connection consists of two tabs, which are integrally formed as part of the drive stub.
  • the half-shells consist of the parts separated off from the drive stub in the production of the two straps.
  • the clamping form of the clamping coupling is formed both in the half-shells as well as in the two tabs from a bore in the drive stub.
  • the largest forces from the maximum pressure build-up are not transmitted via the coupling but directly via the two end faces of the center hole of the drive stub and the plasticizing screw.
  • the plasticizing screw is positioned exactly in relation to the drive stub with every new coupling process. In each case, a zero or calibration position is again established for the linear movement of the plasticizing screw. This is solvable in a threaded solution only with additional effort.
  • the clamping form of the clamping coupling is formed both in the half-shells as well as in the two tabs from a bore in the drive stub. This measure helps to maximize the centering of the plasticizing screw in the coupling process with respect to the drive stub.
  • the clamping form has a circular cylindrical shape, so that the plasticizing screw can be inserted in any rotational position in the tab connection.
  • the circular cylindrical shape can be made very inexpensive.
  • the clamping depth through the half shells corresponds approximately to the length of the tabs. A few millimeters of play arise fabrikatorisch, since the half shells must be separated from the drive stub. But this also ensures that the plasticizing screw is always pushed up to the stop on the stop surface of the center hole.
  • the two half shells are clamped by at least two screws, wherein in the tabs there is a through hole, which is preferably made as a fitting bore with little play to the screws.
  • One half shell has a thread and the other half shell has a through hole.
  • the plasticizing screw according to the second and third aspects of the design is formed and coupled or decoupled via a releasable press connection as a heat-shrink connection or as a hydraulic tensioning system, wherein the plasticizing screw is introduced during coupling to stop and the worm clutch is formed as a releasable press connection by means of a clamping sleeve.
  • the forces of the cylinder coupling are transmitted via a flange connection and in particular the rotational forces of the worm clutch on the cylindrical surface of a clamping sleeve.
  • the cylinder coupling can be configured, for example, according to the prior art as a flange coupling.
  • the worm clutch is formed via a clamping sleeve. The plasticizing screw is blocked in the cylinder during the coupling process with respect to the linear movement. The plasticizing screw is not pulled out but the clamping sleeve is pulled away.
  • the extension or retraction of the coupling shaft of the plasticizing screw is carried out in the clamping sleeve of the press connection by the drive means for the linear movement of the plasticizing screw by means of a corresponding service control.
  • a corresponding function can be integrated or programmed in the machine control.
  • the warm-up phase can be programmed as a service function as part of the machine control.
  • the heating of the heat-shrink sleeve is carried out via at least one externally mounted heat source, to homogenize the heat, the plasticizing screw is rotated during heating in rotation. It is sufficient if the heat source acts only like a strip over the entire length of the clamping sleeve.
  • the thermal clamping system has a clamping sleeve into which the coupling shaft of the plasticizing screw can be pushed into the clamping sleeve until it stops is.
  • the linear movement of the plasticizing screw must be controlled with the highest precision for the spraying function. With insertion on stop, an exact zero or start position for the linear drive of the plasticizing screw in normal production operation is guaranteed.
  • a pressure chamber for the pressure medium is provided between a holding body and the clamping sleeve with a connecting bore to a pressure pre-chamber of a pressure piston.
  • the pressure piston is preferably formed as a floating body and is free in the pressure pre-chamber on an externally attacking adjusting screw by means of a hand wrench for the pressure build-in pressed or relieved.
  • the hydraulic clamping system forms a self-contained hydraulic system with the pressure chamber, the connection bore and the pressure pre-chamber.
  • FIG. 1 a shows a section of the plastification and the injection unit in the area of the screw coupling with the plasticizing screw withdrawn;
  • Figure 1 b according to the figure 1 a, but with the front position of the
  • FIG. 2a corresponds to Figure 1 b, but with blocking of the plasticizing screw in the plasticizing, the beginning of the mechanical uncoupling of the plasticizing screw drive;
  • FIG. 2b shows the end of the decoupling of the plasticizing screw with the drive stub of the plasticizing screw drive withdrawn;
  • Figure 3 shows the plasticization with plasticizing and plasticizing screw, fully expanded;
  • FIG. 4 shows the injection unit with removed plastification;
  • Figure 5 shows the whole injection unit in perspective view;
  • FIGS. 6a-6d show the production of the clamping coupling according to the second approach, FIG. 6a the raw drive stub, FIG. 6b with a bore in the drive stub, FIG. 6c the separation of the two half shells and FIG.
  • FIG. 6d an exploded view of the drive stub with the two Flaps and the two half-shells;
  • FIG. 7a shows a longitudinal section through the worm clutch of FIGS. 6a to 6d;
  • FIG. 7b is a longitudinal view of the worm clutch;
  • Figures 8, 9a and 9b show a clamping coupling according to the first approach, wherein Figure 8 is a perspective view, Figure 9a is a section and Figure 9b is a section IX - IX of Figure 9a;
  • Figures 10a and 10b a hydraulic clamping system in section and in a front view on a larger scale;
  • Figure 1 1 schematically a thermal tensioning system with developed
  • FIGS. 1a and 1b show the region of the couplings in the retracted position of the plasticizing screw 1 (FIG. 1 a) and in the foremost position (FIG. 1 b).
  • a support structure 3 for a granule feed hopper On the left side of the plasticizing cylinder 2 is shown with a support structure 3 for a granule feed hopper. The still dry granules are fed via a feed opening 4 in the catchment area of the plasticizing screw 1.
  • the plasticizing screw 1 has a coupling shaft 9, which is engaged in a clamping coupling 10 of a drive stub 11 of the injection unit 8.
  • the drive unit 12 is designed for the two types of movement of the plasticizing screw 1, namely a linear movement, as indicated by arrow 13, and a rotary Movement, according to arrow 14.
  • the rotational movement is generated by a drive motor 15 and a gear 16.
  • the linear movement is generated hydraulically.
  • a hydraulic cylinder 17 a hydraulic piston 18 is arranged, which is bolted directly to the drive stub 11.
  • the drive shaft 19 of the gear 16 has in the region of the drive stub 1 1 a keyway 20 which transmits the rotary movement of the drive motor 15 to the drive stub 11.
  • the hydraulic cylinder 17 is via oil lines 21, 22nd Hydraulic oil resp. discharged, such that the drive stub 11 performs a forward or backward movement.
  • the drive is activated for the linear movement or for the rotary movement.
  • the worm clutch when disassembling the plasticizer 7, the worm clutch is first released, as shown in FIG. 2a. Pressure oil is supplied via the oil line 21, so that the drive stub 1 1 is moved to the foremost position (FIGS. 1 a and 2 a). In this position, the plasticizing screw 1 can be blocked by means of a locking mandrel 24 with respect to a longitudinal movement of the plasticizing screw 1 to the plasticizing cylinder. As a next step, the worm clutch is released, as will be explained with the figures 6, 7a and 7b. The valves 27 and 28 are reversed by means of a service program via a machine control 26, so that the drive stub 11 is drawn away from the coupling shaft 9 together with the clamping sleeves according to FIG. 2b (FIG. 2b).
  • the plasticizing screw 1 is thus completely decoupled.
  • the next step is to release the cylinder clutch 29 while the plasticizer 7 is suspended in a rope 30 of a machine crane (k) 31 ( Figure 3).
  • the plasticizer 7 can be lifted and transferred to the cleaning department.
  • the coupling process takes place in the exact opposite sense. For the whole process primarily the already existing on an injection molding machine facilities and hand keys are needed.
  • FIG. 3 shows the plasticization 7 before assembly or after disassembly.
  • the plasticizing cylinder is heated by heating elements 32 and is protected by a top 33.
  • the operator is prevented from contacting the plasticizer 7 only with the retaining rings 6 and hand keys, as shown in Figure 3.
  • Figure 3 shows further devices, such as a nozzle closure 34 and the nozzle closure drive 35 These are not the subject of the new invention but, as in the prior art, may remain on the plasticizer 7 for assembly / disassembly.
  • FIG. 4 shows the injection unit 8 without the plastification 7.
  • FIG. 5 is a perspective view showing the injection unit 8.
  • an auxiliary device 40 for pushing away the support structure 3 for the Feeding hopper and has two auxiliary cylinder 41. It can be seen from FIGS. 4 and 5 that, prior to the assembly of the plastification 7, there is sufficient clearance 42 for inserting the cylinder coupling parts from above.
  • FIGS. 6a to 6c show the three main steps in the production of the coupling parts.
  • 6a shows the raw drive stub 1 1 'with a flat end face 50, in which according to Figure 6b, a coupling bore 51 is attached as a blind hole.
  • 6c shows the subsequent step, namely the separation of the two half-shells 52, 53, for example by four saw cuts 54, 55, 56 and 57. This leaves two tabs 58, 59, which remain integrally connected to the drive stub 11 '.
  • FIG. 6d shows an exploded view of the drive stub with the two lugs and the two half shells.
  • a milled recess 60 with a bore 61 for clamping screws 62 is already shown.
  • two threaded holes 63 are mounted for the clamping screws 62.
  • the two tabs 58, 59 has ever been made a fitting bore 64 for the shank of the clamping screws 62.
  • FIG. 7 a shows the worm clutch 23 in section with the worm clutch part, but partially inserted into the wedge clutch 10. It is important that the end face 67 of the plasticizing screw coupling part 68 is inserted up to the stop in the centering hole 65 to the stop surface 66. Only then are the clamping screws 62 tightened analogously to FIG. 9b.
  • FIG. 7b shows FIG. 7a with the worm clutch 23 or the clamping clutch 10 in a view, with the plasticizing worm 1 being pushed completely into the centering bore 65, with the clamping screws 62 tightened.
  • FIG. 7b shows the position for semi-automatic mounting and demounting Plasticizing screw 1.
  • a signal generator 80 and a sensor 81 for the rotational position of the clamping coupling provide via a controller 82 of the screw drive system and the corresponding machine control for the optimal position of the clamping screws 62nd
  • FIGS. 8, 9a and 9b has, as a particular advantage, very low production costs.
  • a suitable choice of the milling cut 73 and the geometry of the recess 74 can be produced by a sufficient elasticity of the two half-shells 71 and 72 secure clamping for transmitting the torque for the screw rotation with the big advantage of a quick coupling and decoupling.
  • this is optimally ensured, as is the O position with the abutment surface 66.
  • FIG. 8 is a perspective view of a correspondingly designed drive stub 1 1.
  • FIGS 10a and 10b show on a larger scale the hydraulic clamping system without the plasticizing screw.
  • the innermost part is the clamping sleeve 110, which is externally surrounded by a holding body 150 and firmly screwed to the drive stub.
  • Bottom left is a filling opening 151 for filling or topping up hydraulic oil 152. This is closed with a stuffing screw 153.
  • the clamping sleeve 110 is pressed tightly on both end sides in the holding body 150 or soldered.
  • Upper left is the oil pressure generation 155 shown. This consists of a pressure piston 156, an adjusting screw 157 and a screw plug.
  • a pressure pre-chamber 158 which is arranged via a connecting channel 160 for a uniform pressure transmission and venting of the pressure chamber 161.
  • the pressure chamber 161 is formed as a cylindrical space between the holding body 150 and the clamping sleeve 110.
  • a hand key 159 or the adjusting screw 157 By simply turning a hand key 159 or the adjusting screw 157, depending on the direction of rotation, either an enormous oil pressure of, for example, more than 1000 bar is generated or the pressure is completely released.
  • 1 1 shows the second embodiment of a heat-shrink connection 170.
  • the clamping sleeve 171 may be part of the drive stub 1 1.
  • a arranged over the effective length i of the clamping sleeve 171 heat source 172 linearly transmits the necessary heat for the expansion of the clamping sleeve 171.
  • the clamping sleeve for a retraction or extension of the coupling shaft 9 is heated evenly.
  • the heating can be done very quickly, for example in the range of seconds.
  • the cooling starts immediately after switching off the heat source 172.

Abstract

L'invention concerne un procédé ainsi qu'un système pour le montage et le démontage de la vis de plastification (1) d'un piston respectivement d'un bout d'arbre d'entraînement (11) d'un système d'entraînement de vis sans fin d'une presse d'injection au moyen d'un accouplement de serrage (10). Le système d'entraînement de vis sans fin est prévu pour un mouvement linéaire commandé et rotatif de la vis de plastification (1). L'accouplement est réalisé par l'intermédiaire de moyens de serrage, qui sont de préférence conçus comme des accouplements de serrage mécaniques (10), la force d'entraînement rotative et la force de rétraction de la vis étant transmises par friction et la force d'injection axiale par l'intermédiaire d'une butée. Le processus de montage et de démontage est assisté de manière commandée par le système d'entraînement de vis sans fin. La vis de plastification (1) peut en outre être conçue par l'intermédiaire d'un joint de compression amovible en tant que joint thermorétractable ou en tant que système de tension hydraulique (23) et couplée ou découplée, la vis de plastification (1) étant mise en place sur la butée lors de l'accouplement.
EP07847719A 2006-12-05 2007-12-04 Procédé et système pour le montage et le démontage de la vis de plastification Withdrawn EP2121276A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH19762006 2006-12-05
CH3412007 2007-03-02
PCT/EP2007/063209 WO2008068238A1 (fr) 2006-12-05 2007-12-04 Procédé et système pour le montage et le démontage de la vis de plastification

Publications (1)

Publication Number Publication Date
EP2121276A1 true EP2121276A1 (fr) 2009-11-25

Family

ID=39204613

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07847719A Withdrawn EP2121276A1 (fr) 2006-12-05 2007-12-04 Procédé et système pour le montage et le démontage de la vis de plastification

Country Status (7)

Country Link
US (1) US20100071187A1 (fr)
EP (1) EP2121276A1 (fr)
JP (1) JP2011502809A (fr)
BR (1) BRPI0719714A2 (fr)
CA (1) CA2671132A1 (fr)
RU (1) RU2009125521A (fr)
WO (1) WO2008068238A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH698516B1 (de) * 2006-12-20 2009-08-31 Kistler Holding Ag Kupplung für eine Kunststoffspritzgiessanlage.
DE102010046275A1 (de) * 2010-09-22 2012-03-22 Netstal-Maschinen Ag Universelle Hilfssteuerung für eine Spritzgießmaschine
JP6267172B2 (ja) * 2015-10-23 2018-01-24 ファナック株式会社 射出成形システム
CN105922171B (zh) * 2016-05-04 2017-09-01 苏州达恩克精密机械有限公司 电加热棒组装机的夹紧螺丝压紧装置
CN109130133A (zh) * 2018-11-06 2019-01-04 张德修 螺纹块拆卸装置
CN110153951A (zh) * 2019-06-19 2019-08-23 中铁工程装备集团有限公司 一种常压换合金刀具密封装置维修更换工装及方法
CN113478002B (zh) * 2021-07-13 2022-09-06 深圳市宏展科技有限公司 一种可实现工件定长分割的裁切设备

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3528154C1 (de) * 1985-04-15 1987-02-05 Karl Hehl Kupplungseinrichtung zum Kuppeln einer auswechselbaren Arbeitseinheit einer Kunststoff-Spritzgiessmaschine
DE3513411A1 (de) * 1985-04-15 1986-10-16 Karl 7298 Loßburg Hehl Kunststoff-spritzgiessmaschine
DE3643884A1 (de) * 1986-12-22 1988-06-30 Mannesmann Ag Verfahren zum ausbau der schnecke aus dem schneckenzylinder einer schnecken-spritzgiessmaschine und dementsprechend gestaltete schnecken-spritzgiessmaschine
JPH0780214B2 (ja) * 1987-03-12 1995-08-30 住友重機械工業株式会社 射出成形機用連結装置
CN1213843C (zh) * 2000-05-24 2005-08-10 内兹塔尔机械公司 注塑机注射螺杆的驱动装置
DE10061329A1 (de) * 2000-12-04 2002-07-18 Mannesmann Plastics Machinery Einspritzeinheit für eine Spritzgießmaschine
DE102008037102B4 (de) * 2008-08-08 2010-07-08 Sumitomo (Shi) Demag Plastics Machinery Gmbh Einspritzeinheit für eine Spritzgießmaschine sowie Verfahren zum Betrieb einer solchen Einspritzeinheit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2008068238A1 *

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BRPI0719714A2 (pt) 2013-12-10
US20100071187A1 (en) 2010-03-25
JP2011502809A (ja) 2011-01-27
WO2008068238A1 (fr) 2008-06-12
CA2671132A1 (fr) 2008-06-12
RU2009125521A (ru) 2011-01-20

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