FR2846592A1 - Adjustable ejector for plastic or metal component from injection mould has wedge rod connected to threaded dowel for adjusting its length - Google Patents
Adjustable ejector for plastic or metal component from injection mould has wedge rod connected to threaded dowel for adjusting its length Download PDFInfo
- Publication number
- FR2846592A1 FR2846592A1 FR0213568A FR0213568A FR2846592A1 FR 2846592 A1 FR2846592 A1 FR 2846592A1 FR 0213568 A FR0213568 A FR 0213568A FR 0213568 A FR0213568 A FR 0213568A FR 2846592 A1 FR2846592 A1 FR 2846592A1
- Authority
- FR
- France
- Prior art keywords
- rod
- wedge
- length
- plastic
- adjusting
- 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- Withdrawn
Links
- 238000002347 injection Methods 0.000 title 1
- 239000007924 injection Substances 0.000 title 1
- 239000002184 metal Substances 0.000 title 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 3
- 229910000842 Zamak Inorganic materials 0.000 claims abstract 2
- 238000005553 drilling Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000003100 immobilizing effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
- B29C45/401—Ejector pin constructions or mountings
-
- 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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/44—Removing or ejecting moulded articles for undercut articles
- B29C45/4435—Removing or ejecting moulded articles for undercut articles using inclined, tiltable or flexible undercut forming elements driven by the ejector 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
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
- B29C45/401—Ejector pin constructions or mountings
- B29C2045/4021—Adjustable ejector pins
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
Description
1 La présente invention concerne un dispositif réglable pour éjecter de1 The present invention relates to an adjustable device for ejecting
l'empreinte d'unthe imprint of a
moule une pièce injectée (en matière plastique, en aluminium ou en zamack) . mold an injected part (plastic, aluminum or zamack).
Actuellement les dispositifs sont composés d'une cale avec une tige fixée sur la plaque d'éjection ou sur le patin par une vis positionnée dans l'axe de la tige, ce qui entraîme une mise en longueur précise de la tige d'o un nombre important d'heures d'ajustage lors de la réalisation et lors de la maintenance. La vis empêche le perçage d'un circuit d'eau dans la tige pour refroidir la cale. De nombreuses casses de cale lors de la fermeture du moule sont dues à la rupture de la vis ou de l'extrémité de la tige qui est fragilisée par le trou taraudé de la vis. L'inclinaison de la tige est réalisée par un perçage incliné dans le patin suivant l'angle désiré ce qui entrame la réalisation de Currently the devices are composed of a wedge with a rod fixed on the ejection plate or on the shoe by a screw positioned in the axis of the rod, which leads to a precise lengthening of the rod o a significant number of hours of adjustment during production and during maintenance. The screw prevents the drilling of a water circuit in the rod to cool the hold. Many wedge breaks during the closing of the mold are due to the rupture of the screw or the end of the rod which is weakened by the tapped hole of the screw. The inclination of the rod is carried out by an inclined drilling in the shoe according to the desired angle which starts the realization of
patin spécifique.specific pad.
Le dispositif selon l'invention permet de remédier à ces inconvénients. Il comporte une première caractéristique, le réglage en longueur de la tige de cale, et une deuxième The device according to the invention overcomes these drawbacks. It has a first feature, the length adjustment of the wedge rod, and a second
caractéristique le réglage angulaire de la tige de la cale d'éjection. characteristic is the angular adjustment of the rod of the ejection block.
Le dispositif est composé d'une cale avec une tige monté dans un patin. L'extrémité de la tige du coté du patin, possède un filetage pour venir fixer une douille. Cette douille permet en la vissant ou en la dévissant de régler la mise en longueur de la tige de cale. La douille étant à l'extérieur de la tige, le dispositif permet de réaliser un The device consists of a wedge with a rod mounted in a shoe. The end of the rod on the side of the shoe has a thread to fix a socket. This socket allows by screwing or unscrewing it to adjust the lengthening of the wedge rod. The sleeve being outside the rod, the device makes it possible to produce a
perçage dans la tige de cale pour un circuit de refroidissement. Le dispositif avec sa 20 douille permet d'absorber également des efforts très importants par rapport à une vis. drilling in the bilge rod for a cooling circuit. The device with its socket also makes it possible to absorb very large forces compared to a screw.
Le patin du dispositif est constitué d'un corps dans le lequel on vient loger la douille, de deux glissières de part et d'autre du corps reliées à celui-ci par deux axes, et d'un couvercle pour immobiliser en translation la douille. Dans le corps du patin, une oeillère a été réalisée ce qui permet de positionner un axe suivant l'angle d'inclinaison The skid of the device consists of a body in which the socket is housed, two slides on either side of the body connected to the latter by two axes, and a cover for immobilizing the socket in translation . In the body of the skate, an eyecup was made which allows to position an axis according to the angle of inclination
que l'on veut donner à la tige de la cale pour démouler la contredépouille de la pièce. that we want to give to the wedge rod to unmold the undercut from the part.
Afin d'obtenir une combinaison plus grande de réglage de l'inclinaison de la cale, une In order to obtain a larger combination of wedge tilt adjustment, a
ou deux oeillères sont réalisées sur les glissières. or two blinders are made on the slides.
Deux plats sur la douille et un dégagement sur la plaque de base du moule permettent le démontage de la tige du dispositif sans démontage complet du moule Le dispositif peut être monté pour des cales d'éjection droites ou inclinées Pour des cales droites selon un mode particulier de réalisation, le corps du patin peut être supprimé et la douille directement incorporée sur la plaque d'éjection La figurel représente en coupe longitudinale le dispositif de l'invention pour une cale montante inclinée La figure 2 représente en coupe transversale le dispositif de l'invention 35 La figure 3 représente le détail de l'oeillère sur les glissières En reférence à ces dessins, le dispositif comporte une tige (1) de cale (2) dont une extrémité est filetée.Un perçage dans la tige (1) permet d'amener de l'eau dans la cale.La douille (3) est vissée sur le diamètre de la tige (1) de la cale (2) pour absorber des efforts importants d'arrachement lors de la rentrée d'éjection de la batterie (4). Un 40 logement a été réalisé sur le corps (5) du patin pour loger la douille (3).Le logement de la douille (3) peut être réalisé sur le couvercle (6). Le couvercle (6) sert de maintien en translation de la douille (3). Le couvercle (6) est fixé sur le corps (5) par deux vis (7). Un dégagement sur la plaque de base (11) permet le passage de la clé pour démonter la cale du dispositif Two dishes on the bushing and a clearance on the base plate of the mold allow the disassembly of the rod of the device without complete disassembly of the mold The device can be mounted for straight or inclined shims For straight shims according to a particular mode embodiment, the body of the skid can be removed and the socket directly incorporated on the ejection plate The figure represents in longitudinal section the device of the invention for an inclined rising wedge Figure 2 represents in cross section the device of the invention 35 FIG. 3 shows the detail of the eyecup on the slides. With reference to these drawings, the device comprises a wedge rod (1), one end of which is threaded. A bore in the rod (1) allows '' bring water into the hold.The sleeve (3) is screwed on the diameter of the rod (1) of the hold (2) to absorb significant tearing forces during the ejection reentry of the battery (4). A housing 40 has been made on the body (5) of the pad to accommodate the sleeve (3). The housing of the sleeve (3) can be made on the cover (6). The cover (6) serves to hold the bushing (3) in translation. The cover (6) is fixed to the body (5) by two screws (7). A clearance on the base plate (11) allows the passage of the key to disassemble the shim from the device
Selon une variante non illustrée le couvercle (6) peut être remplacé par un circlips. According to a variant not illustrated, the cover (6) can be replaced by a circlip.
Un premier axe (8) relie le corps (5) du patin aux deux glissières (10). Un deuxième axe (8) que l'on positionne dans l'oeillère (9) du corps (5) et dans les oeillères (9) des glissières (10) suivant l'inclinaison que l'on veut donner à la tige de cale (2), relie le corps (5) aux glissières (l0). Sur la douille (3) on a réalisé deux ou plusieurs plats pour 50 pouvoir la visser ou la dévisser avec une clé. Ces plats peuvent être remplacés par des A first axis (8) connects the body (5) of the pad to the two slides (10). A second axis (8) which is positioned in the eyecup (9) of the body (5) and in the blinders (9) of the slides (10) according to the inclination which one wishes to give to the wedge rod (2), connects the body (5) to the slides (l0). On the socket (3) two or more dishes have been produced so that it can be screwed or unscrewed with a wrench. These dishes can be replaced by
ergots non illustrés sur la figure. pins not shown in the figure.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0213568A FR2846592A1 (en) | 2002-10-30 | 2002-10-30 | Adjustable ejector for plastic or metal component from injection mould has wedge rod connected to threaded dowel for adjusting its length |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0213568A FR2846592A1 (en) | 2002-10-30 | 2002-10-30 | Adjustable ejector for plastic or metal component from injection mould has wedge rod connected to threaded dowel for adjusting its length |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2846592A1 true FR2846592A1 (en) | 2004-05-07 |
Family
ID=32104299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0213568A Withdrawn FR2846592A1 (en) | 2002-10-30 | 2002-10-30 | Adjustable ejector for plastic or metal component from injection mould has wedge rod connected to threaded dowel for adjusting its length |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2846592A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110962304A (en) * | 2019-12-24 | 2020-04-07 | 杭州嘉通机械有限公司 | Injection mold with ejection assembly |
| EP4417391A1 (en) * | 2023-02-17 | 2024-08-21 | Airbus Operations GmbH | Mould of a forming tool, forming tool and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0852771A (en) * | 1994-11-30 | 1996-02-27 | Tatematsu Mold Kogyo Kk | Slide core guide unit |
| US5551864A (en) * | 1995-01-12 | 1996-09-03 | Boskovic; Borislav | Core lifter system |
| US5814357A (en) * | 1997-08-15 | 1998-09-29 | Boskovic; Borislav | Core lifter system for use in a plastic injection mold |
| EP1201396A1 (en) * | 2000-10-25 | 2002-05-02 | NAVARRA PRUNA, Alberto | Flexible ejector for injection molds |
-
2002
- 2002-10-30 FR FR0213568A patent/FR2846592A1/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0852771A (en) * | 1994-11-30 | 1996-02-27 | Tatematsu Mold Kogyo Kk | Slide core guide unit |
| US5551864A (en) * | 1995-01-12 | 1996-09-03 | Boskovic; Borislav | Core lifter system |
| US5814357A (en) * | 1997-08-15 | 1998-09-29 | Boskovic; Borislav | Core lifter system for use in a plastic injection mold |
| EP1201396A1 (en) * | 2000-10-25 | 2002-05-02 | NAVARRA PRUNA, Alberto | Flexible ejector for injection molds |
Non-Patent Citations (1)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 1996, no. 06 28 June 1996 (1996-06-28) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110962304A (en) * | 2019-12-24 | 2020-04-07 | 杭州嘉通机械有限公司 | Injection mold with ejection assembly |
| EP4417391A1 (en) * | 2023-02-17 | 2024-08-21 | Airbus Operations GmbH | Mould of a forming tool, forming tool and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |