EP2593290A2 - Mehrteilige blasform, insbesondere für die herstellung von kunststoffflaschen - Google Patents
Mehrteilige blasform, insbesondere für die herstellung von kunststoffflaschenInfo
- Publication number
- EP2593290A2 EP2593290A2 EP11732378.2A EP11732378A EP2593290A2 EP 2593290 A2 EP2593290 A2 EP 2593290A2 EP 11732378 A EP11732378 A EP 11732378A EP 2593290 A2 EP2593290 A2 EP 2593290A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- blow mold
- eccentric
- clamping bar
- insert
- bridge
- 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- Withdrawn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
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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/30—Mounting, exchanging or centering
- B29C33/306—Exchangeable mould parts, e.g. cassette moulds, mould inserts
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C2049/4856—Mounting, exchanging or centering moulds 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C2049/4856—Mounting, exchanging or centering moulds or parts thereof
- B29C2049/4858—Exchanging mould parts, e.g. for changing the mould size or geometry for making different products in the same mould
-
- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C2049/4856—Mounting, exchanging or centering moulds or parts thereof
- B29C2049/4864—Fixed by a special construction to the mould half carriers, e.g. using insulating material between the mould and the mould half carrier
-
- 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
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7158—Bottles
Definitions
- Multi-part blow mold in particular for the production of plastic bottles
- a disadvantage of this type of attachment of the interchangeable inserts in the parent mold is that at least on one side of the parent mold at least 2 screws solved and the associated washers must be moved or rotated to perform the change of the inserts.
- the invention has for its object to provide a multi-part blow mold and in particular a quick-release system for quickly changing a replacement insert, which are quick, easy and reliable operable with a simple structure and simple, cost manufacturability.
- a multi-part blow mold for the production of blown plastic workpieces has at least one locking mechanism for releasably locking a replacement insert in a blow mold.
- Such inserts must be exchangeable on the one hand for reasons of wear, on the other hand for reasons of product change.
- a locking mechanism is provided according to the invention, which comprises a clamping bar, which is mounted on the blow mold and is displaceable from a locking position to a release position.
- the clamping bar thus serves as a bolt to lock the exchange insert or to release it for replacement.
- the invention provides that the clamping bar is coupled to at least one eccentric, which is rotatably mounted on the blow mold.
- a fastening of the interchangeable inserts is thus created in a parent mold, which allows a faster and easier operation for changing the inserts.
- the installer In order to change the exchangeable inserts, the installer only has to insert a tool, for example a hexagon wrench (Allen key), into an eccentric and turn it through 180 ° in order to loosen the exchange insert held in the nut form or to re-tighten it.
- a clamping bar which is held and guided by means of a bridge on the web of the mother mold, pushed onto a support surface of a recess in the removable insert and holds in this way the changeover insert in the blow mold (mother mold).
- the clamping bar is positioned between a bearing surface of the blow mold and a bearing surface of the recess of the removable insert and the underside of the bridge under slight bias and holds in this way the replacement insert safely in the blow mold.
- the bearing surface for the clamping bar forms in the recess of the interchangeable insert a plane with the support for the clamping bar on the web of the blow mold, so that on the one hand the clamping bar can be pushed onto the support surface in the recess of the interchangeable insert and on the other hand the interchangeable insert safely the blow mold is held.
- a relatively narrow tensioning strip is provided, which carries out a movement to the interchangeable insert or away from the interchangeable insert.
- the clamping bar is arranged parallel to the central axis (central axis) of the bottle and thus formed by the cavity of the removable insert inner contour of the bottle. The clamping bar is thus moved radially for clamping or releasing. Since the clamping bar can be made very narrow, the narrow edge region of the blow mold (mother mold) is sufficient to store the clamping bar. Also, the mechanical drive of the clamping bar (for example, the eccentric) can be arranged according to the invention on the narrow edge of the blow mold.
- no engagement elements are provided on the tensioning strip, in particular no additional engagement bodies or the like. Rather, the entire clamping strip is used for clamping and locking. Furthermore, the solution according to the invention is designed so that, if necessary, the replacement insert does not have to be adapted or changed. In particular, no additional recesses or the like are required in the interchangeable insert to be fastened. Thus, it is then only necessary to design the blow mold (mother mold) according to the invention and to provide it with the clamping mechanism comprising the clamping bar. This results in significant advantages, since a user can optionally continue to use the existing him interchangeable inserts easily.
- the tensioning strip according to the invention can also be additionally provided with locking lugs if this is necessary.
- the entire clamping bar is arranged parallel to the transition edge between the removable insert and the blow mold (mother mold) and moved (radially) in the direction of the changeover insert in the clamping direction or moved back in the opposite direction.
- the invention prevents these from jamming or jamming. Rather, the clamping bar according to the invention can be moved from the released position to the clamping position or back with only a single tool and with only a single handle of an operator.
- clamping system with clamping bar, eccentric and bridge on one side (a web) of the blow mold is provided.
- Fixed stops can be attached to the opposite bridge which are realized for example in a conventional manner with screws and washers. If the changeover insert on one side is free, it can simply be turned out of the blow mold.
- the clamping bar on the front side which slides over the support surface of the recess of the removable insert, with a small chamfer.
- the surface on the bridge at which the clamping strip is not parallel to the bearing surface of the clamping bar on the web of the blow mold and the recess of the removable insert is executed, but is slightly angled to this, so that the Clamping bar during its movement on the support surface of the recess of the removable insert a slight downward movement, in the direction of support surface of the recess of the removable insert executes.
- the wear of the support surface is reduced on the web of the blow mold and the recess of the interchangeable insert, since the movement of the clamping bar is no longer parallel to this under bias, but the clamping bar moves slightly onto the support surface, or it is in the Extension of the clamping bar additionally a slight clamping pressure on the replacement insert when reaching the end position of the clamping bar constructed.
- the clamping bar can have a slight clearance between bridge, bridge of the blow mold and recess of the interchangeable insert.
- a simple backup is to provide instead of a backup of the clamping bar a backup of the eccentric itself, so that it can not move away by itself from the position he occupies tensioned tensioning strip away.
- a spring element e.g. a pressure ball to provide under the eccentric in the web of the blow mold, so that the eccentric is constantly pressed with a force upwards. This provides a certain "frictional engagement" which prevents twisting due to vibrations or shocks.
- the type of attachment according to the invention is not limited to whole interchangeable inserts. Partial inserts are used in numerous forms, e.g. to modify only the shoulder area of a bottle. Also such parts inserts can be kept in a blow mold (mother mold) according to the same principle. Only the bridge and the associated clamping bar must be made shorter in the case corresponding to the length of the part replacement insert.
- a partial replacement insert in a replacement insert in this manner.
- the adapter insert is fixed with a clamping strip held on the insert and the insert is in turn secured with a clamping strip whose bridge and eccentric are mounted on the web of the blow mold (nut shape).
- the eccentric is pressed by means of a pressure ball up and pressed in the end positions in a pocket in the bridge and is thus secured against rotation, so that vibrations can not cause the eccentric moves out of position.
- To rotate the eccentric it must first be pressed down with the tool (Allen key) so that it is moved out of the secured position and can then be turned using the tool to lock or unlock the mold insert.
- an additional guide for the slide (clamping strip) can be provided.
- a bridge which runs downwards in a corresponding groove of the slider. With this system of web and groove, the slider is secured against rotation, for example, if the friction should be slightly different when moving.
- the system according to the invention has significant advantages over the solution described in DE 0 2009 050 637 A.
- the outer diameter of the interchangeable insert is determined for the individual machine types. It limits the maximum diameter of a bottle to be produced, since a certain wall thickness of the interchangeable insert between its outer radius and the inner contour for the bottle is still required in order to ensure sufficient stability for the interchangeable insert.
- the insert can often not straight (vertical) pull out, but it is first rotated to one side and so solved.
- the recesses must be circumferential in accordance with the second possibility provided in the above-mentioned document, and thus reduce the number of recesses. fend the radius of the insert (Blasformsegmentes) sensitive. This weakening of the insert reduces the feasible bottle diameter accordingly. This is a major disadvantage of the known solution.
- the first option is not practical, since the removal as described due to the fixed suction does not work.
- FIG. 1 shows a partial perspective view of a multi-part blow mold according to the invention, partly in exploded view, a partial sectional view of the quick-release system according to the invention in the closed state, a partial view, analogous to FIG. 2, in the opened state, an enlarged detail view of the embodiment, analogous to FIG enlarged detail view of the embodiment, analogous to FIG. 3, a detailed representation of the quick-release system in the closed state, a representation of the embodiment shown in FIG. 6 in the open state, and a perspective partial exploded view, analogous to FIG. 1.
- FIG. 1 shows a part a multi-part blow mold 2 (mother mold), in which a plurality of removable inserts 8 are receivable.
- Fig. 1 shows an exchange insert 1, which is suitable for producing a plastic bottle by means of a blowing process.
- the blow mold 2 is divided in an axial plane of symmetry that the one part of a bottle forming exchange insert 1 is visible.
- FIG. 1 shows, according to the invention, on one side of the blow mold 2, a free space provided with a support surface 5, in which a clamping strip 3 can be inserted in a displaceable manner.
- the clamping strip 3 (slide) is displaceable laterally by means of an eccentric 4 and is held by means of a bridge 6, which is connected to the blow mold 2 in the region of the bearing surface 5.
- the eccentric 4 has a guide pin 5 which is rotatably received in a bearing bore 16 of the bridge 6.
- tool engagement means 12 are provided, for example in the form of a polygonal recess, in which an external polygonal tool can be inserted.
- a pocket-like recess 7 is provided, into which the eccentric can be introduced in the closed state (see FIGS. 4 and 8) in order to avoid unintentional rotation of the eccentric 4 due to vibrations during operation of the blow mold. This prevents the clamping bar 3 (slider) from slipping and unintentionally releasing or releasing the removable insert 1.
- the elastic element (spring) presses a ball 17 against the underside of the eccentric 4.
- two pocket-like recesses 7 can be provided in an advantageous embodiment, in order to fix the eccentric in the positions "open” and "closed”, optionally, only one recess can be provided, see above.
- the invention provides that it has a guide groove 10 (see in particular Fig. 8), in which a Guide web 9 of the bridge 6 engages.
- the clamping bar 3 can move the clamping bar 3 by rotation of the eccentric 4 about the central axis of its guide pin 15 in an opening formed in the clamping bar 3 ExzenterausEnglishung 18 without them tilted.
- this construction it is possible to provide only an eccentric 4 even with a longer clamping bar 3. As a result, the handling is considerably simplified.
- the guide groove 10 is preferably over the entire width of the clamping bar 3, see Fig. 1st
- the guide bar 9 extends over the entire width of the bridge.
- the guide bar 9 still has the additional function that the bridge 6 can be supported on the support surface 5.
- a screw can be introduced to secure the bridge 6 in the middle of the blow mold 2 (mother mold). Therefore, the guide bar 9 (see Fig. 8) is designed with two heights.
- Fig. 8 further shows a space 1 1, which is formed in the bridge 6 to receive the clamping bar 3 so that it is displaceable by rotation of the eccentric 4.
- Fig. 1 shows on the clamping bar 3 opposite side of the blow mold 2 stop means 13, which may be formed, for example in the form of screws and washer discs.
- This stop means 13 need not be solved for changing the exchange insert 1, but this can be turned out by loosening the clamping bar 3 (slider) to the central axis, not shown.
- Figs. 1 and 8 also show schematically that the clamping bar 3 may be provided at its front edge with a chamfer or rounding 14 to ensure a simpler and more reliable moving the clamping bar 3.
- the invention is provided in a favorable embodiment, to provide the clamping bar 3 in cross section with a wedge-shaped profile. Accordingly, the bridge 6 may beveled on its clamping bar 3 side facing. This results in an improved, backlash-free, secure latching or blocking of the interchangeable insert 1 in the closed state (see FIGS. 2 and 6).
- FIGS. 2 and 3 show an embodiment in which in the clamping strip 3 securing recesses 21 are formed, in which, analogous to FIGS. 4 and 5, a ball 17 is pressed to hold the clamping bar 3 in the closed, locked state, as this results in a schematic representation of FIG. 2.
- This is an alternative to the use of a pocket-like recess 7 (see above).
- 6 and 7 show an enlarged view of the wedge-shaped design of the clamping bar 3 and their assignment to a wedge-shaped surface of the bridge. 6
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Clamps And Clips (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201010026832 DE102010026832A1 (de) | 2010-07-12 | 2010-07-12 | Mehrteilige Blasform, insbesondere für die Herstellung von Kunststofflaschen |
PCT/EP2011/003481 WO2012007154A2 (de) | 2010-07-12 | 2011-07-12 | Mehrteilige blasform, insbesondere für die herstellung von kunststoffflaschen |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2593290A2 true EP2593290A2 (de) | 2013-05-22 |
Family
ID=44628497
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11732378.2A Withdrawn EP2593290A2 (de) | 2010-07-12 | 2011-07-12 | Mehrteilige blasform, insbesondere für die herstellung von kunststoffflaschen |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2593290A2 (de) |
JP (1) | JP2013534482A (de) |
CN (1) | CN103298598A (de) |
DE (1) | DE102010026832A1 (de) |
WO (1) | WO2012007154A2 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103171129B (zh) * | 2013-03-19 | 2015-03-25 | 江苏新美星包装机械股份有限公司 | 一种快速换模机构 |
DE102013218282A1 (de) * | 2013-09-12 | 2015-03-26 | Röders Gmbh | Mehrteilige Blasform, insbesondere für die Herstellung von Kunststoffflaschen |
DE102013226906A1 (de) | 2013-12-20 | 2015-07-09 | P & L Gmbh & Co. Kg | Mehrteilige Blasform für die Herstellung von geblasenen, aus Kunststoff bestehenden Werkstücken, sowie Verfahren zu deren Herstellung |
CN110406077B (zh) * | 2019-07-17 | 2023-11-17 | 江苏新美星包装机械股份有限公司 | 一种可快速更换吹瓶机模具的锁模装置 |
CN111452335A (zh) * | 2020-04-08 | 2020-07-28 | 王丽枝 | 一种塑料瓶成型模具 |
CN115849680A (zh) * | 2022-12-14 | 2023-03-28 | 常熟市精工模具制造有限公司 | 一种带有定位结构的模具及其加工工艺 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2094219B (en) * | 1981-01-12 | 1985-01-16 | Hehl Karl | Die closure unit of an injection moulding machine |
DE3510329A1 (de) * | 1984-12-08 | 1986-06-12 | Alois 7580 Bühl Wörner | Werkzeug, insbesondere spritzgiessform |
DE8812265U1 (de) * | 1987-11-14 | 1988-12-01 | Bekum Maschinenfabriken Gmbh, 1000 Berlin | Vorrichtung zum Aufspannen mindestens eines Formteils einer Hohlkörperblasform an einer Schließplatte des Schließgestells einer Schließeinheit |
FR2653058B1 (fr) * | 1989-10-18 | 1992-04-24 | Sidel Sa | Dispositif d'ouverture et de fermeture pour moule du type porte-feuilles, et installation de moulage qui en est equipee. |
FR2733176B1 (fr) | 1995-04-19 | 1997-06-27 | Sidel Sa | Dispositif pour fabriquer des recipients en une matiere thermoplastique par soufflage ou etirage-soufflage |
FR2856334B1 (fr) * | 2003-06-19 | 2005-08-26 | Sidel Sa | Dispositif de moulage pour la fabrication de recipients en materiau thermoplastique |
WO2005042231A1 (en) * | 2003-11-04 | 2005-05-12 | Sincro Pet Comércio E Servicos Ltda. | Blow mold shell with volume insert system for a blowing machine |
DE102005035233A1 (de) * | 2005-07-25 | 2007-04-12 | Sig Technology Ag | Vorrichtung zur Halterung von Blasformsegmenten |
NL1036359C2 (nl) * | 2008-12-23 | 2010-06-24 | Bosch Sprang Beheer B V | Vorminrichting, vormbus, matrijs en werkwijze voor het thermovormen van een product. |
DE102009050637B4 (de) * | 2009-05-06 | 2019-06-19 | Krones Aktiengesellschaft | Blasformanordnung |
-
2010
- 2010-07-12 DE DE201010026832 patent/DE102010026832A1/de not_active Ceased
-
2011
- 2011-07-12 JP JP2013518987A patent/JP2013534482A/ja not_active Withdrawn
- 2011-07-12 EP EP11732378.2A patent/EP2593290A2/de not_active Withdrawn
- 2011-07-12 WO PCT/EP2011/003481 patent/WO2012007154A2/de active Application Filing
- 2011-07-12 CN CN2011800345162A patent/CN103298598A/zh active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO2012007154A2 * |
Also Published As
Publication number | Publication date |
---|---|
WO2012007154A2 (de) | 2012-01-19 |
DE102010026832A1 (de) | 2012-01-12 |
WO2012007154A3 (de) | 2013-01-03 |
DE102010026832A8 (de) | 2012-03-15 |
CN103298598A (zh) | 2013-09-11 |
JP2013534482A (ja) | 2013-09-05 |
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