CN103085232B - For the drive unit of injection machine - Google Patents
For the drive unit of injection machine Download PDFInfo
- Publication number
- CN103085232B CN103085232B CN201210344328.6A CN201210344328A CN103085232B CN 103085232 B CN103085232 B CN 103085232B CN 201210344328 A CN201210344328 A CN 201210344328A CN 103085232 B CN103085232 B CN 103085232B
- Authority
- CN
- China
- Prior art keywords
- control device
- drive unit
- drive motor
- rom drive
- described control
- 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.)
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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
- B29C45/26—Moulds
- B29C45/2618—Moulds having screw-threaded mould walls
- B29C45/262—Moulds having screw-threaded mould walls provided with unscrewing 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
- B29C45/84—Safety devices
-
- 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
- B29C2045/1784—Component parts, details or accessories not otherwise provided for; Auxiliary operations not otherwise provided for
- B29C2045/1792—Machine parts driven by an electric motor, e.g. electric servomotor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/24—Pipe joints or couplings
- B29L2031/246—T-joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/56—Stoppers or lids for bottles, jars, or the like, e.g. closures
- B29L2031/565—Stoppers or lids for bottles, jars, or the like, e.g. closures for containers
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The present invention relates to a kind of drive unit for injection machine (1), this drive unit has: actuator, and these actuators are movable relative to the moulding (5) of the die cavity (6) being arranged in injection mold (7), one CD-ROM drive motor (3) being configured to motor, for driving described actuator, one for the control device (33) of described CD-ROM drive motor, described control device has electronic memory and described CD-ROM drive motor can be run selectively by described control device under normal operation mode and overlond running pattern, when meeting the unlocking condition deposited in the electronic memory of described control device determined, the irreversible infringement of CD-ROM drive motor is eliminated when these unlocking conditions, described control device allows described CD-ROM drive motor overlond running in short time in overlond running pattern, as unlocking condition, the quantity of the activation realized of described overlond running pattern leaves in the electronic memory of described control device.
Description
Technical field
The present invention relates to a kind of drive unit for injection machine and a kind of injection machine with this drive unit.
Background technology
The preferred example of such drive unit is liftout attachment and core tractor.
Liftout attachment be used for by partly solidify or the moulding that solidifies completely eject from the die cavity of injection mold.First, when described injecting products have side recessed time, may problem be there is when ejecting.Such as need certain ejecting force when automatically producing the screw lid being used for beverage bottle.That is, in order to these be unscrewed from (the having externally threaded) of injection mold negative part (Negativteil) with female screw lid, the half module of the moulding also do not hardened completely from injection mold is sloughed by knock pin.Because plastics also do not harden completely, so screw lid expands and therefore, it is possible to takes off from the minus thread of the half module forming die cavity and be returned to again initial shape afterwards.
If but circulation stops or occurs mistake, then moulding may occur and cool on mould or in mould or seriously harden, can only make thus slough more difficult and can block when ejecting.Therefore stop work in ejection process, this shut-down such as manually can screw out the injecting products blocked and solve.But this is a very time-consuming and inefficient process.
Core tractor is used for the moulding forming relative complex in a mold.Here also may there is the problem blocked, which prevent involved core from the return movement mould.
In AT508658A4, propose a kind of liftout attachment, wherein arrange a motor power limiter for limiting the ejecting force applied by CD-ROM drive motor, this motor power limiter can disconnect when there is the moulding blocked.Therefore a CD-ROM drive motor that size is obviously excessive compared with the requirement normally run is used targetedly.This oversize CD-ROM drive motor is certainly compared to the enough CD-ROM drive motor costlinesses of normal operation and constructs usually comparatively large, and floor space is increased.
Summary of the invention
Task of the present invention is, even if also allow user relative to the moulding in mould under difficult condition to move actuator, particularly can realize extrusion from mould to be difficult to the part of the demoulding or to retract core from mould, and larger and that power is stronger motor need not be employed.
This task has the drive unit of feature as described below and a kind of injection machine realization with this drive unit by a kind of.Have according to the drive unit for injection machine of the present invention: actuator, these actuators are movable relative to the moulding of the die cavity being arranged in injection mold, one is configured to the CD-ROM drive motor of motor for driving described actuator, one for the control device of described CD-ROM drive motor, wherein, described control device has electronic memory and described CD-ROM drive motor can be run selectively by described control device in normal operation mode and overlond running pattern, wherein, to determine when meeting, during the unlocking condition deposited in the electronic memory of described control device, the irreversible infringement of CD-ROM drive motor is eliminated when these unlocking conditions, described control device allows CD-ROM drive motor overlond running in short time in overlond running pattern, wherein, as unlocking condition, the quantity of the activation realized of described overlond running pattern leaves in the electronic memory of described control device.
The present invention utilizes common practise, that is, motor, especially servomotor, the particularly synchronous motor of permanent excitation allow to transship in short time in the heat situation noting winding overhang, and need not worry irreversible infringement or the degaussing of motor winding.
Therefore, people can have such viewpoint, namely monitor the temperature of the winding overhang of motor, the particularly temperature of the winding overhang of the synchronous motor of permanent excitation and should allow reliably to identify the overheated of threat and therefore avoid irreversible infringement.
But confirm unexpectedly, situation is not like this, because obviously the thermal behavior of winding overhang may produce high dynamic and can not fast enough via the control device identification of temperature sensor by CD-ROM drive motor.
Here the present invention specifies, only have when meeting the unlocking condition deposited in that determine, at control device electronic memory, eliminate the irreversible infringement of CD-ROM drive motor when these unlocking conditions, control device just allows to activate the overlond running pattern being used for CD-ROM drive motor.
Because suppose, operating personnel will only have in case of emergency (such as when component regulate run in adhere time) just use or little (during at the moulding that existence is blocked) operating overload operational mode and this use must to intensity of circulation not requirement, this regulation (Ansatz) is legal.
Compared with prior art, advantage of the present invention is direct easy understand:
The CD-ROM drive motor of-with low cost, normal size;
The unaltered floor space of-CD-ROM drive motor;
-the identical mechanical device of actuator can be used;
-by control device, the functional of overlond running pattern can be shown.
According to the preferred embodiment of one, as unlocking condition, the quantity of the activation realized of described overlond running pattern leaves in the electronic memory of described control device.
According to the preferred embodiment of one, as unlocking condition, the duration of the single activation of described overlond running pattern leaves in the electronic memory of described control device.
According to the preferred embodiment of one, as unlocking condition, the total duration of the activation realized in predetermined time section leaves in the electronic memory of described control device.
According to the preferred embodiment of one, additionally set temperature sensor is for determining the temperature of the winding overhang of described CD-ROM drive motor, and the extreme value of storage temperature in the electronic memory of described control device, in existence or when exceeding this extreme value, described control device stops or interrupts the activation of described overlond running pattern.
According to the preferred embodiment of one, described CD-ROM drive motor is configured to servo motor, is preferably configured to the synchronous motor of permanent excitation, or is configured to line motor.
According to the preferred embodiment of one, described drive unit is configured to liftout attachment, and wherein actuator is configured to be arranged on the knock pin on a movable liftout plate, and these knock pins are used for ejecting moulding from the die cavity of injection mold.
According to the preferred embodiment of one, described drive unit is configured to core tractor, and wherein, described actuator is configured to be inserted into the core in the die cavity of injection mold.
The unlocking condition deposited in the electronic memory (this control device can be configured to a part for the control appliance of whole injection machine) of control device can be selectable or also can be accumulation:
The quantity of the activation realized of-overlond running pattern;
Single or altogether the duration of the activation realized of-overlond running pattern.
Required sensing device can such as be integrated in CD-ROM drive motor.
A temperature sensor additionally can be set for determining the temperature of the winding overhang of described CD-ROM drive motor, wherein, the extreme value of storage temperature in the electronic memory of described control device, in existence and/or when exceeding this extreme value, described control device stops or interrupts the activation of overlond running pattern.But using extreme value temperature as unique unlocking condition, as described above, is inadequate.
Accompanying drawing explanation
Other advantages of the present invention and details provide by accompanying drawing and affiliated description.Shown in it:
Fig. 1 illustrates the schematic diagram of the closed side of an injection machine;
Fig. 2 illustrates the schematic diagram of the core tractor of an injection machine; With
Fig. 3 a-c illustrates flow chart.
Detailed description of the invention
Fig. 1 shows the schematic diagram of closed side when ejecting moulding 5 that has the injection machine of liftout attachment 1.
Shown in the closed side of injection machine generally have a fixing clamping cap 20 and movable clamping cap 21 together be arranged on therebetween, the injection mold 7 of at least two-piece type.Between the two half-unit here of injection mold 7, being configured with die cavity 6, in this die cavity, first forming moulding 5 by nozzle 22 by spraying into thermoplastic plastic melt.
Described liftout attachment 1 comprises the CD-ROM drive motor 3 that is configured to the synchronous motor of permanent excitation, and this CD-ROM drive motor translationally drives liftout plate 2 by a rotating shaft 13.
This liftout plate 2 arranges the knock pin 4 through described movable clamping cap 21, these knock pins have knock pin projection 23 in its leading section, and these knock pin projections can to act directly on moulding 5 and to slough on the chaser of the mold halves 7 in left side when the translational motion of this moulding 5.Liftout plate 2 is anti-torsionally directed on a liftout plate guider 29.The mold halves 7 in left side has the negative shape that form is the internal thread 25 for screw lid to be produced of external screw thread 24, the recessed problem that may cause such as blocking when sloughing moulding 5 (being a screw lid) of strong cooling or sclerosis here in this externally threaded side.
If moulding 5 occurs block, then, when attempting to eject, reaction force is applied on liftout plate 2 by knock pin projection 23 and knock pin 4.Parts of these parts described can arrange a detector 31 (preferably on as directed liftout plate 2), and this detector detects described reaction force.
Detector 31 transmits corresponding signal to control device 33, and this control device will eject motor 3 where necessary and be switched to overlond running pattern.The moulding 5 hardened completely or block can be removed from injection mold 7 at any time thus, and not need long cycle interruption.Control device 33 is connected with the control appliance 37 of whole injection machine.This control device also can be arranged on wherein.
Replace arranging detector 31, preferably when electronic injection machine, also can monitoring motor electric current.Current sensor 31 ' can be used for this reason.That can be manipulated by operating personnel, a unshowned switch also can be set, by the activation of this switch application overlond running pattern.
The difference of Fig. 2 and Fig. 1 is only, described drive unit is configured to core tractor 34 here.Two cores 35,36 are pushed in the die cavity 6 of an injection mold 7 here, to realize the production of T-shaped section bar.Moulding 5 also may occur here adhere or block, this may hinder core 35,36 outwards to move.
Flow process possible Fig. 3 a and Fig. 3 b shows the standard of discussion of stating in realization in control device 33.In the flow process of Fig. 3 a and 3b, the unlatching of overlond running pattern (referred to herein as " propulsion functions ") only has respectively and just carries out when meeting all standards provided in little frame 38.In shown situation example, the unlatching of overlond running pattern not by means of only Fig. 3 b flow process, be also prevented from by the flow process of Fig. 3 c, because winding temperature is too high on the one hand, and within the given time period, reach the quantity nmax of the maximum permission of activation on the other hand.
It should be noted that the flow process of Fig. 3 a and 3c also can realize in principle respectively separately individually, but the flow process that Fig. 3 is b (temperature monitoring) only realizes in combination with at least one flow process in Fig. 3 a and 3c.
Preferably specify, all three flow processs realize all the time simultaneously, and therefore in order to open overlond running pattern, all three flow processs must all be opened.
Claims (9)
1., for the drive unit (1) of injection machine, have:
-actuator, these actuators are movable relative to the moulding (5) of the die cavity (6) being arranged in injection mold (7);
-one is configured to the CD-ROM drive motor (3) of motor for driving described actuator,
-one for the control device (33) of described CD-ROM drive motor (3), wherein, described control device (33) has electronic memory and described CD-ROM drive motor (3) can be run selectively by described control device (33) in normal operation mode and overlond running pattern, wherein, to determine when meeting, during the unlocking condition deposited in the electronic memory of described control device, the irreversible infringement of CD-ROM drive motor (3) is eliminated when these unlocking conditions, described control device (33) allows CD-ROM drive motor (3) overlond running in short time in overlond running pattern,
Wherein, as unlocking condition, the quantity (nmax) of the activation realized of described overlond running pattern leaves in the electronic memory of described control device (33).
2. according to drive unit according to claim 1, it is characterized in that, as unlocking condition, the duration (tmax_1) of the single activation of described overlond running pattern leaves in the electronic memory of described control device (33).
3. according to the drive unit described in claim 1 or 2, it is characterized in that, as unlocking condition, the total duration (tmax_n) of the activation realized in predetermined time section leaves in the electronic memory of described control device (33).
4. according to the drive unit described in claim 1 or 2, it is characterized in that, additionally set temperature sensor is used for the temperature of the winding overhang determining described CD-ROM drive motor (3), and the extreme value of storage temperature in the electronic memory of described control device (33), in existence and/or when exceeding this extreme value, described control device (33) stops or interrupts the activation of described overlond running pattern.
5. according to the drive unit described in claim 1 or 2, it is characterized in that, described CD-ROM drive motor (3) is configured to servo motor, or is configured to line motor.
6. according to the drive unit described in claim 1 or 2, it is characterized in that, described CD-ROM drive motor (3) is configured to the synchronous motor of permanent excitation.
7. according to the drive unit described in claim 1 or 2, it is characterized in that, described drive unit is configured to liftout attachment (1), wherein actuator is configured to the knock pin (4) that is arranged on a movable liftout plate (2), and these knock pins are used for ejecting moulding (5) from the die cavity (6) of injection mold (7).
8. according to the drive unit described in claim 1 or 2, it is characterized in that, described drive unit is configured to core tractor (34), wherein, described actuator is configured to the core (35,36) that can be inserted in the die cavity (6) of injection mold (7).
9. there is the injection machine according to the drive unit one of claim 1 to 8 Suo Shu.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA1382/2011 | 2011-09-26 | ||
| AT13822011 | 2011-09-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103085232A CN103085232A (en) | 2013-05-08 |
| CN103085232B true CN103085232B (en) | 2016-02-03 |
Family
ID=47667404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210344328.6A Active CN103085232B (en) | 2011-09-26 | 2012-09-17 | For the drive unit of injection machine |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN103085232B (en) |
| AT (1) | AT12901U1 (en) |
| DE (1) | DE102012015298B4 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60190829A (en) * | 1984-03-12 | 1985-09-28 | Sumitomo Heavy Ind Ltd | Apparatus for monitoring molded-product releasing |
| EP1072386A2 (en) * | 1999-07-28 | 2001-01-31 | Fanuc Ltd | Ejector controller for injection molding machine |
| EP1175989A2 (en) * | 2000-07-26 | 2002-01-30 | Fanuc Ltd | Mold condition detecting device and method for injection molding machine |
| CN1761560A (en) * | 2003-03-13 | 2006-04-19 | 住友重机械工业株式会社 | Molding device and control method thereof |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE172145T1 (en) * | 1993-04-05 | 1998-10-15 | Procontrol Ag | INJECTION MOLDING MACHINE WITH ELECTRICAL DRIVE AND METHOD FOR GUIDING THE SAME |
| US5912025A (en) * | 1997-06-06 | 1999-06-15 | Sumitomo Heavy Industries, Ltd. | Control device for motor-driven injection molding machine capable of generating larger clamping force |
| DE10110398A1 (en) * | 2001-03-03 | 2002-09-26 | Mannesmann Rexroth Ag | Method for regulating the pressure medium supply to a hydraulically operated actuator |
| DE102006036267A1 (en) * | 2006-08-03 | 2008-02-07 | Demag Ergotech Gmbh | Injection unit |
| DE102007052233A1 (en) * | 2007-10-22 | 2009-04-23 | Fisw Steuerungstechnik Gmbh | Power supply device for drive i.e. electric drive, in e.g. injection molding machine, has power controller provided on peak load, where drive is electrically connected to controller, and another power controller connected with drive |
| JP4491011B2 (en) * | 2007-11-28 | 2010-06-30 | 株式会社神戸製鋼所 | Kneading apparatus load monitoring method and load monitoring apparatus |
| AT508658B1 (en) * | 2009-08-25 | 2011-03-15 | Engel Austria Gmbh | EJECTOR WITH MOTOR POWER LIMITER |
-
2011
- 2011-09-26 AT ATGM8065/2012U patent/AT12901U1/en not_active IP Right Cessation
-
2012
- 2012-08-01 DE DE102012015298.1A patent/DE102012015298B4/en active Active
- 2012-09-17 CN CN201210344328.6A patent/CN103085232B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60190829A (en) * | 1984-03-12 | 1985-09-28 | Sumitomo Heavy Ind Ltd | Apparatus for monitoring molded-product releasing |
| EP1072386A2 (en) * | 1999-07-28 | 2001-01-31 | Fanuc Ltd | Ejector controller for injection molding machine |
| EP1175989A2 (en) * | 2000-07-26 | 2002-01-30 | Fanuc Ltd | Mold condition detecting device and method for injection molding machine |
| CN1761560A (en) * | 2003-03-13 | 2006-04-19 | 住友重机械工业株式会社 | Molding device and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103085232A (en) | 2013-05-08 |
| DE102012015298B4 (en) | 2021-02-11 |
| AT12901U1 (en) | 2013-01-15 |
| DE102012015298A1 (en) | 2013-03-28 |
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