DE102011050015A1 - Apparatus, useful for coating packaging mold parts produced by injection molding, comprises a receiving area for receiving packaged goods, a supply unit for feeding the mold parts to a feeding position, and an extraction unit - Google Patents

Abstract

The apparatus comprises a receiving area for receiving packaged goods such as cosmetic, food or drugs, a supply unit (20) for feeding packaging mold parts to be coated to a feeding position, an extraction unit (24) for removing coated wrapping moldings from a removal position, a carrier unit (6) for supporting the packaging mold parts, a transport unit (1) for transporting the carrier unit, from the supply position to the removal position, on a transport path, and a coating unit comprising a vacuum chamber (18), which is designed such that the mold parts are coated with a vacuum coating. The apparatus comprises a receiving area for receiving packaged goods such as cosmetic, food or drugs, a supply unit (20) for feeding packaging mold parts to be coated to a feeding position, an extraction unit (24) for removing coated wrapping moldings from a removal position, a carrier unit (6) for supporting the packaging mold parts, a transport unit (1) for transporting the carrier unit, from the supply position to the removal position, on a transport path, and a coating unit comprising a vacuum chamber (18), which is designed such that the mold parts are coated with a vacuum coating to increase the passage barrier effect against gases and/or water vapor. The supply unit is provided upstream a molding unit. A cooling unit is provided between the molding unit and the coating unit. The cooling unit is designed such that the mold of the packaging parts is less cooled while entering into the vacuum chamber, and the coating unit has a temperature of 20-30[deg] C. The packaging mold parts, while entering into the cooling unit, comprise a temperature of 50-80[deg] C. The transit time of the packaging mold parts to be cooled by the cooling unit is an integral multiple of the cycle time of the packaging mold parts processed by the coating unit, where the processing time of the packaging mold parts by the coating unit is less than 30 seconds. The cooling unit comprises a cooling chamber, and a paternoster. The coating unit further comprises an inlet airlock upstream of the vacuum chamber in the transport direction of the transport unit. The transport unit is partly formed by the cooling unit such that the packaging mold parts lead linear through the coating unit. The transport path comprises first and second linear transport sections, where the directions of the first and second transport sections extend mutually antiparallel. A masking unit and a demasking unit are provided on the transport path. The masking unit is designed such that the packaging mold parts to be coated, before entering into the coating unit, are masked with a masking body in a masking position, where functional surface areas of the packaging mold parts are prevented from coating by sealing portions. The demasking unit removes coated packaging mold parts from the masking body after emerging from the coating unit in a demasking position. The masking body and/or the carrier unit: partially form the cooling unit; derive heat of the packaging molded parts; and further cool the mold parts after emerging from the cooling unit.

Description

The present invention relates to a device for producing coated injection-molded parts according to the preamble of claim 1.

From the WO 2009/030425 A1 is a method and an apparatus for the production of packaging parts (including injection molded parts) with a barrier layer with good penetration barrier action against water vapor and gases known. Here, the already preformed parts of the device are supplied and provided by means of plasma CVD method or by sputtering with a ceramic and / or metallic vacuum coating.

For the coating process, the WO 2009/030425 A1 on the EP 1 048 746 B1 , There, the coating takes place in a coating cycle using a turntable. In such a turntable, the loading coincides with the unloading position, whereby the turntable can not be loaded and unloaded simultaneously. Furthermore, the turntable can be rotated only as a whole, whereby the individual stations must be synchronized with each other in time and results in a limited throughput.

The coating devices are often used by service providers in coating services. Between the production site and the coating site to be coated packaging moldings are transported by freight, in addition to the logistics costs and a possible contamination of the packaging moldings is added, so they need to be cleaned again before coating. Overall, there is a high cost associated with the coating.

The object of the present invention is to improve an apparatus and a method for the production of coated packaging moldings in such a way that the efficiency is increased, the quality of the end products is increased, a small amount of space is required, an increased throughput is made possible and the costs are reduced.

This object is achieved by a device having the features of claim 1, and by a method having the features disclosed in the description. Advantageous developments of the invention are described in the subclaims. In the context of the present invention, in particular, the functional features of the device given further development are also disclosed and claimed as further-forming method steps for the method according to the invention. Furthermore, the method steps of the method given further development are also disclosed and claimed as further developing functional features for the device according to the invention.

The device according to the invention comprises shaping means which shape the shaped packaging parts by injection molding, injection blow molding, thermoforming etc. The fact that the forming means are part of the device eliminates any logistical transport steps, whereby the overall effort is reduced and results in a higher efficiency. The molded packaging formed by the molding means are applied after exit from the mold means by feeding means in a feed position on carrier means, which may be formed for example by a fit and / or a support surface in the form of a tray. Furthermore, means of transport, for example conveyor belts, rails and / or rollers, are provided, which convey the carrier units on a transport path, inter alia, to and / or through the coating means. In the vacuum chamber of the coating agent, the packaging moldings are coated in a vacuum chamber with a vacuum coating. As possible coating methods that are used in the vacuum chamber, in particular CVD (Chemical Vapor Deposition) methods such as plasma enhanced chemical vapor deposition (PECVD) and PVD (Physical Vapor Deposition) methods such as sputtering into consideration.

In practice, it has been found that by intervening the shaping means in the device more frequent cracks and / or distortions in the coated packaging moldings occurs. The invention is further based on the finding that these cracks and / or distortions arise from the fact that the recently formed packaging moldings still have an elevated temperature due to the molding process, between 50 ° C and 80 ° C when leaving the mold means and / or when feeding into the feeding position, and that this increased temperature, the coating process is adversely affected. According to the invention, this problem is solved in that the coating agents are preceded by cooling agents, which cool the packaging moldings so that the packaging moldings when entering the coating agent, in particular when entering the vacuum chamber of the coating agent, a temperature between 10 ° C and 45 ° C, in particular between 15 ° C and 30 ° C, more preferably between 20 ° C and 30 ° C, have.

After molding, the packaging moldings have a temperature of 50 ° C or higher, which has to be cooled. As soon as the temperature has been lowered sufficiently, the shrinkage rate of the polymers of the uncoated packaging moldings decreases, so that stresses and stress cracks be avoided between polymer and coating.

In order to achieve the highest possible and smooth throughput, the throughput times of the packaging molded parts by the coolant are an integer multiple of the throughput times of the packaging molded parts by the coating agent, as this ensures a continuous inline flow of the packaging moldings by the device with no (or minimal) downtime , The throughput times of the packaging molded parts by the coating agent are preferably less than 60 seconds, more preferably less than 30 seconds.

The coolant may be designed to cool the packaging moldings with an air and / or fluid stream. For example, by means of a fan heat can be removed from the packaging moldings.

For a particularly uniform cooling of the packaging moldings, the coolant may also be formed by a cooling chamber, which pass through the packaging moldings. This cooling chamber can dissipate the heat energy, for example via a cooled gas (such as air) and / or cooled liquids (such as in the form of a cold pool).

Furthermore, it is conceivable that the coolant is at least partially formed by the transport. Thus, the coolant can be formed by extended bands that can dissipate the heat itself and / or where the heat energy during transport to the environment (especially the ambient air) is discharged. Furthermore, the means of transport can themselves be designed, for example, as cooled metal bodies with a large surface contact with the packaging moldings as coolant.

For a realization of the coolant is in particular a paternoster, so a transport section, in which the carrier units (and thus the packaging moldings) are conveyed at an angle to a transport plane, in particular in the vertical direction, in Aufzugebenen up, then go through a turning area and subsequently again at an angle to the transport plane, in particular in the vertical direction, preferably guided back to the previous level. Here it is also conceivable to temporarily remove the packaging moldings from the means of transport by loading means of the paternoster and to attach them again to the means of transport by means of unloading means of the paternoster after the passage. Such a paternoster allows cooling by treadmill extension with a minimum area overhead for the device, since the transport takes place in the vertical direction.

For a high production throughput, it has been found to be advantageous to have the packaging molded parts run through the coating means in a geometrically linear (preferably translational) manner, ie to form the transport path in such a way that the packaging molded parts pass through a position of the coating agent only once. As a result, a continuous production is made possible and, in particular compared to the turntable from the prior art, an increased throughput possible, since at the same time packaging molded parts from the coating agents can be supplied and removed.

Preferably, the coating means in the direction of travel (transport direction) of the carrier units comprise first an inlet lock, then a vacuum chamber with a subsequent outlet lock. Due to the linear structure, the locks and the chamber need not be synchronized with one another in terms of time; in particular, the number of carrier units in the respective sections and / or the residence time of the individual carrier units in the respective sections may differ from one another.

Plant technology, it has been found to be particularly advantageous if the transport path consists of two transport sections which extend in parallel to each other and in 180 ° to each other rotated (ie anti-parallel) transport directions. Due to this feedback, the systems can be made particularly compact and thus save important production space. Here it is also conceivable to provide more than two transport sections in this way, wherein a third transport section is antiparallel to the second transport section, a fourth transport section is antiparallel to the third transport section, etc.

For the transition from one transport section to the other transfer means may be provided, which transfer the carrier unit. Such transfer means may for example be formed by a vacuum gripper or other gripping devices, a pressure slide, rails, rollers and / or treadmills. For a particularly space-saving construction, the transfer is preferably perpendicular to the transport directions.

In particular, polyethylene (PE), polypropylene (PP), cycloolefin copolymer (COC), cycloolefin polymer (COP), polyvinyl chloride (PVC), polyethylene terephthalate (PET) or polyamide (PA) are suitable as the material for the packaging molding.

It is also conceivable that the packaging moldings from compostable polymers, in particular based on renewable raw materials polymers such as starch-based polymers (strong blends), PLA (polyacid), polyester of the type PHA (Polyhydroxyalcanoat), z. PHB (polyhydroxybutyrate), PHV (polyhydroxyvaleate), cellulosic materials made from chemically modified cellulose, polymers based on renewable raw materials are especially specific polyesters, e.g. Based on PDO (biopropanediol), specific polyamides, e.g. B. made of castor oil, and polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC) on bio-ethanol from z. Sugarcane based, as well as specific, made of crude oil or natural gas synthetic polyester, or laminates made from said materials are formed.

As coatings, in particular for injection-molded parts, a vacuum coating with metal oxides, in particular aluminum oxides, or silicon oxides has proven to be expedient because of their good penetration barrier effects, even in thin layers.

Advantageously, the coating agents are designed such that they apply the vacuum coating by means of a sputtering process as oxidic, nitridic or sulfidic layer.

Also, by means of a plasma CVD, preferably a PECVD (Plasma Enhanced Chemical Vapor Disposition) method with HMDSO (hexamethyldisiloxane) or TEOS (tetraethoxysilane), in particular with plasma pretreatment with HMDSO and oxygen, HMDSO and nitrogen, a ceramic layer can be applied as a coating ,

Further advantageously, the coating compositions are formed such that they are preferably vacuum-coated by sputtering or evaporation of metal oxides, in particular aluminum oxides, or silicon oxides, in particular SiOx, where x is a number less than 2 smaller than 0.9, or by plasma polymerization of silicon oxides of organosilanes, in particular of hexamethyldisiloxane (HMDSO) and tetramethyldisiloxane (TMDSO) or by plasma polymerization of highly crosslinked hydrocarbon layers, in particular starting from methane, ethylene or acetylene on the packaging moldings.

Advantageously, the coating compositions may also be formed so that the coating is a carbon layer, in particular an amorphous carbon layer ("diamond-like carbon" or DLC).

• – Wasserstofffreie amorphe Kohlenstoffschichten „a-C” bestehen überwiegend aus sp²-hybridisierten Bindungen und werden deshalb auch als Graphitartige Kohlenstoffschichten bezeichnet.
• – Tetraedrische wasserstofffreie amorphe Kohlenstoffschichten „ta-C” bestehen aus sp³-hybridisierten Bindungen, weshalb sie den Diamantschichten gleichzusetzen sind.
• – Metallhaltige wasserstofffreie amorphe Kohlenstoffschichten, „a-C:Me”
• – Wasserstoffhaltige amorphe Kohlenstoffschichten, „a-C:H” (H-Anteil > 35%)
• – Tetraedrische wasserstoffhaltige amorphe Kohlenstoffschichten, „ta-C:H” (H-Anteil > 25%) mit überwiegend sp³-hybridisierten Kohlenstoffatomen
• – Metallhaltige wasserstoffhaltige amorphe Kohlenstoffschichten, „a-C:H:Me”. Durch Dotieren mit Metallen bildet sich ein Verbund aus einer „a-C:H” Matrix und Metallkarbiden. Schichten aus diesem Material besitzen hohe Verschleißfestigkeiten, geringe Reibkoeffizienten sowie bessere Haftung der Schichten. Durch Veränderung des Metallgehaltes lassen sich die Materialeigenschaften stark beeinflussen.
• – Modifizierte wasserstoffhaltige amorphe Kohlenstoffschichten, „a-C:H:X”. Durch Dotierung mit Elementen wie Si, O, N, F und B können amorphe Kohlenstoffschichten je nach gewünschten Eigenschaften stark modifiziert werden. Silizium beispielsweise erhöht die Temperaturbeständigkeit in sauerstoffhaltiger Umgebung. Eine Dotierung mit Silizium und Sauerstoff kann die Oberflächenspannung stark herabsetzen (bis hin zu Werten in der Größenordnung von PTFE). Außerdem lassen sich transparente und äußerst kratzfeste Schichten herstellen.

In particular, the following amorphous carbon layers are suitable, which after the Guideline VDI 2840 are divided as follows:

• Hydrogen-free amorphous carbon layers "aC" consist predominantly of sp ² -hybridized bonds and are therefore also referred to as graphite-like carbon layers.
• - Tetrahedral hydrogen-free amorphous carbon layers "ta-C" consist of sp ³ -hybridized bonds, which is why they are equivalent to the diamond layers.
• - Metal-containing Hydrogen-Free Amorphous Carbon Layers, "aC: Me"
• - Hydrogen-containing amorphous carbon layers, "aC: H" (H content> 35%)
• - Tetrahedral hydrogen-containing amorphous carbon layers, "ta-C: H" (H content> 25%) with predominantly sp ³ -hybridized carbon atoms
• - Metal-containing hydrogen-containing amorphous carbon layers, "aC: H: Me". By doping with metals, a composite of an "aC: H" matrix and metal carbides is formed. Layers of this material have high wear resistance, low coefficients of friction and better adhesion of the layers. By changing the metal content, the material properties can be strongly influenced.
• - Modified hydrogen-containing amorphous carbon layers, "aC: H: X". By doping with elements such as Si, O, N, F and B, amorphous carbon layers can be strongly modified depending on the desired properties. Silicon, for example, increases the temperature resistance in an oxygen-containing environment. A doping with silicon and oxygen can greatly reduce the surface tension (up to values of the order of magnitude of PTFE). In addition, transparent and extremely scratch-resistant layers can be produced.

In particular, for the inclusion of medical and / or biological materials, in particular liquids, offers a, preferably fluoridated, carbon layer, since this is among other things given by the good degradability in the body a high biological compatibility. It should be noted here that the recording can also take place only briefly, for example in a blood bag and / or a flow-through cannula.

Even when taking up foodstuffs, the coating with carbon layers can combine the advantages of high biocompatibility with an increased penetration barrier action against gases and / or moisture.

By the coatings of the packaging moldings are on the one hand increased On the other hand, in practice, they make sealing on sealing surfaces more difficult. Thus, it comes only to insufficient support with standard sealing methods, for example, when a lid film is sealed directly to the coating and thus either adhesion-promoting overcoats are required or the packaging must be sealed with slip-on, snap or hinged lid. These solutions, however, make the final product significantly more complex and therefore involve further costs.

Therefore, it has been found to be advantageous to avoid the disadvantages of a coating on functional surface areas by the coating to be coated packaging moldings are provided by masking with at least one masking body, which rests against the packaging moldings so that it covers the functional surface areas so that they prevents deposition of a coating on the masked areas during the coating process.

For example, in a CVD method, the masking body is so close and sealing to the packaging moldings that the coating gases can not reach the covered areas (the functional area areas).

Such a masking body preferably comprises a seal, preferably made of an elastomer, in particular a rubber coating and / or a silicone seal. This seal is preferably pressed under a gravitational force (and optionally under an additional contact pressure) against the packaging moldings in order to minimize gaps between the seal and the packaging moldings and to ensure a high sealing effect. The contact areas between the seal and the packaging moldings as well as the hermetically sealed intermediate areas of the packaging moldings are not coated during the coating.

For example, in a PVD process, the masking body prevents the electron beam from striking the surface of the packaging molding at defined (covered) locations, thereby not coating those locations.

This means that of the support surface (between the packaging molded part and its base) different functional surface areas are not coated by the cover. Preferably, the masking are attached to the packaging moldings after attachment of the packaging moldings on or in a carrier unit, but it is also conceivable to reverse this order.

In this case, the masking bodies are in each case a one-piece or multi-piece solid body which can be applied to the packaging moldings in pieces (or in pieces) and can also be removed piece by piece from the packaging moldings, preferably mechanically. In particular, the masking bodies are not a lacquer layer or the like, so that no elaborate processing step is required for removing the lacquer layer in a detachment process. The masking be removed by demasking without much effort after coating again from the packaging moldings. Preferably, the masking are removed after removing the packaging moldings from the carrier unit of the packaging moldings, but also here a reverse order is conceivable. In this case, a masking body can be assigned to one or more packaging molded parts and in each case cover the functional surface areas in these packaging molded parts. Preferably, a masking body is provided for each carrier unit, wherein a carrier unit may be associated with a plurality of packaging moldings.

If, for example, sealing areas are covered by the masking bodies, they are not coated and thus have the original sealing properties of the packaging moldings to be coated. Although the gas and / or moisture barrier effect is less due to the lack of coating on the functional surface areas than with coating, these functional surface areas usually occupy only an insignificant part of the total area and / or are located on sections of the packaging moldings where a gas and / or or moisture effect is more or less irrelevant, for example, the sealing ring surfaces surrounding a container as a ring collar.

The masking agent and the demasking agent are particularly advantageously formed by a common unit, and the masking bodies are preferably used again in each case directly after the removal of coated packaging moldings for masking packaging molded parts to be coated. Here, for example, offers a vacuum gripping arm, which transfers the masking of the unmasking position to the masking position. As a result, intermediate storage for masking are not necessarily needed and it is a reusability of the Maskierköper guaranteed, which brings economic and environmental benefits. It is also conceivable to provide a cleaning unit for the masking bodies between the masking means and the demasking means.

In particular, it is advantageous if the masking position and the unmasking position are spatially close due to this feedback, for example the masking position is perpendicular to one Transport direction of a transport section is located next to the unmasking position. As a result, transfer distances for the masking are kept low. For this purpose, the masking position is preferably assigned to the first transport section and the unmasking position is assigned to the second transport section.

Similarly, it is advantageous if the feed position into the device and the removal position fall spatially close by this return, for example, the feed position is perpendicular to a transport direction of a transport section next to the removal position. This makes it possible to realize a particularly compact design.

Particularly synergistically, the masking bodies and / or the carrier units can be designed so that they cool the packaging moldings by dissipating heat from them, in addition to or as an alternative to other refrigerants. For this purpose, for example, masking and / or carrier units made of a material with good heat conduction properties such as metal, which are preferably provided with the largest possible surface to dissipate heat particularly effective. If these masking bodies and / or carrier units pass through other coolants, such as a cooling chamber, they are co-cooled and can even after leaving the other coolant cool the shaped packaging parts.

Furthermore, a method for coating produced by injection molding, injection blow molding and / or blow molding packaging moldings with a receiving area for receiving packaged goods, especially cosmetics, food or drugs and with a vacuum coating, disclosed and claimed, in particular with a device according to any one of claims 1 to 13, wherein to be coated packaging moldings are placed by supply means in a feed position in at least one carrier unit, this at least one carrier unit is transported on a transport path through coating means, where the packaging moldings are coated with a vacuum coating, and finally in a removal position of the at least a carrier unit are taken, wherein the packaging moldings are cooled by coolant before entering the coating means so that they enter a temperature between 10 ° C and un entering upon the coating means d 45 ° C, in particular between 15 ° C and 30 ° C, more preferably between 20 ° C and 30 ° C.

Overall, the invention provides in a particularly advantageous manner, an apparatus and a method for the production of coated packaging moldings to improve so that the logistics costs are reduced, the efficiency is increased, a small space requirement is required and the costs are reduced. The upstream cooling of the packaging moldings increases the quality of the coated packaging moldings. Also, the device allows through its linear structure an increased throughput over cyclic structures. Furthermore, the design of the transport path allows a particularly compact design, which can provide valuable space in many production facilities.

Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawings.

Show it:

1 a schematic representation of a first apparatus for coating with upstream shaping means,

2 a schematic representation of a second device for coating with a masking / unmasking and quality control means.

1 shows a schematic representation of a first embodiment of an apparatus for coating packaging molded parts. The device comprises means of transport 1 with a first and a second transport section 2 and 4 formed by two conveyor belts. On the conveyor belts are carrier units 6 promoted. In these carrier units 6 are located, at least in sections, packaging moldings 8th by the supply means 20 from the moldings 28 into the carrier units 6 can be transported into it. Furthermore, extraction means 24 provided the packaging moldings 8th after coating again from the carrier units 6 remove. The feed means 20 and the sampling means 24 are shown here by a gripping arm, in particular with suction cups.

The device also has coating agents 16 on the first transport section 2 on, which is an inlet lock 17 , a vacuum chamber 18 and an outlet lock 19 include.

For coating packaging moldings 8th become the packaging parts to be coated 8th by the feeding means 20 the device in a feed position 22 fed. The feed means 20 place the packaging parts directly in carrier units 6 , in turn, by means of transport, here formed by a first and a second conveyor belt 2 and 4 to be guided on a transport route.

The transport path is here composed of two equally long sections which are parallel to each other and in directions rotated by 180 ° to each other, ie opposite, run, wherein the first section is associated with the first conveyor belt and the second section is associated with the second conveyor belt.

On the way through the carrier units go through 6 (and thus the packaging moldings 8th ) Coolant 30 that the packaging moldings 8th cool with a stream of cold air, for example. Because the packaging moldings 8th through the molding process in the mold means 28 still have a high temperature, the packaging moldings 8th by coolant 30 initially cooled. The aim of this cooling is a temperature of the packaging moldings 8th when entering the coating agent of less than 45 ° C to reach. Are namely the packaging moldings 8th During the coating process much warmer than the applied coating, so it comes in a subsequent cooling (such as storage, transport or additional active cooling) due to the different temperature characteristics of packaging molding 8th and coating, for example, by the different coefficient of expansion to cracks in the coating, which in turn reduces the desired barrier properties (the Durchtrittssperrwirkung).

On the transport route get the carrier units 6 now in the coating agent 16 , First, its ambient pressure in the inlet lock 17 on the pressure of the vacuum chamber 18 customized. In the vacuum chamber, a silicon oxide layer is now applied by means of a PECVD method, which in the drawing by the hatching of the corresponding packaging moldings 8th , Subsequently, and the outlet lock 19 the ambient pressure adjusted back to the ambient pressure.

The carrier units now change by not shown first transfer means from the first transport section (the first conveyor belt 2 ) on the second transport section (the second conveyor belt 4 ).

Here are the coated packaging moldings 8th by removal means 24 from the carrier units 6 taken. The coated packaging moldings can now be filled, optionally sterilized and then sealed.

The empty carrier units 6 are returned by not shown second transfer means from the second transport section back to the first transport section.

In 2 a second embodiment of an apparatus for coating packaging moldings is shown schematically. The device comprises a first and a second transport section 2 and 4 formed by two conveyor belts. On the conveyor belts are carrier units 6 promoted. In these carrier units 6 are located, at least in sections, packaging moldings 8th by the supply means 20 and the sampling means 24 into the carrier units 6 into or out of the carrier units 6 can be promoted. The feed means 20 and the sampling means 24 are shown here by a gripping arm.

In contrast to the embodiment in 1 here are still masking agents 10 and unmasking agent 12 provided, which are formed by a common unit. This common unit brings maskers 14 to the packaging moldings 8th in the masking position 11 and removes the masking 14 in the unmasking position 13 , The packaging molding 8th First, a masking position, in which the packaging moldings 8th with masking bodies 14 Mistake. By the contact surfaces (in particular the bearing surfaces) of the packaging moldings with the carrier units already these contact surfaces (and optionally closed by these contact surfaces areas) are not coated. The masking bodies 14 now additionally cover areas of the packaging moldings 8th which would otherwise be coated in the subsequent coating process. The covered areas (functional area areas) are here sealing areas where the coating would only provide an insufficient sealability and thus insufficient retention of the sealing film. The masking bodies 14 will be in the unmasking position 11 again from the packaging moldings 8th taken. The masking position 11 and the unmasking position 14 are close to each other and are perpendicular to the transport direction on a line, whereby the common unit for masking and unmasking the masking 14 with little effort from the masking position 11 to the unmasking position 14 where they can be as soon as possible again for masking of packaging moldings 8th be used.

The device also has coating agents 16 on, in this embodiment, on the second transport section 4 are located. The coating agents 16 include an inlet lock 17 , a vacuum chamber 18 and an outlet lock 19 include.

The device comprises shaping means 8th , in a conventional manner packaging moldings 8th in the form of injection molded parts from a plastic mold. These packaging moldings 8th be through the delivery means 20 in the feed position 22 on one of the carrier units 6 hung up.

Because the packaging moldings 8th through the molding process in the mold means 28 still have a high temperature, the packaging moldings 8th by coolant 30 , z. As a paternoster, initially cooled. The aim of this cooling is a temperature of the packaging moldings 8th when entering the coating agent of less than 45 ° C to reach. Are namely the packaging moldings 8th During the coating process much warmer than the applied coating, so it comes in a subsequent cooling (such as storage, transport or additional active cooling) due to the different temperature characteristics of packaging molding 8th and coating, for example, by the different coefficient of expansion to cracks in the coating, which in turn reduces the desired barrier properties (the Durchtrittssperrwirkung).

In this embodiment, the coating agents on the transport path are optional pretreatment agents 32 upstream, which the packaging parts 8th (and optionally also the carrier units 6 ) for the actual coating process, for example by cleaning, priming and the like.

After coating in the coating compositions, the masking bodies become 14 from the packaging parts 8th removed and reused in the above manner.

The now coated packaging parts 8th are now undergoing quality control 34 that the quality of the coated packaging parts 8th , in particular the coating, check, record a corresponding rating and / or can transmit to a control unit and also such packaging parts 8th which do not meet defined quality standards.

After quality control, the packaging moldings become 8th through the extraction means 24 from the carrier unit 6 removed and passed on for further processing.

The exact order of the passage of the coolant 30 , the masking and unmasking position 11 respectively. 13 , the pretreatment agent 32 and the quality control agent 34 on the transport route can be exchanged, it is essential that the masking position 11 before the coating agents 16 , the unmasking position 13 after the coating agents 16 , the coolants 30 before the coating agents 16 , the pretreatment agent 30 before the coating agents 16 as well as the quality control agents 30 after the coating agents 16 to go through.

In addition, it should be mentioned that here the carrier units have always been described separately from the means of transport, but these may also fall together, for example when the packaging moldings are applied directly to a conveyor belt or approximately when the carrier units are formed by self-propelled units.

LIST OF REFERENCE NUMBERS

1

Mode of Transport

2

first assembly line

4

second assembly line

6

support unit

8th

Packaging molding

10

masking

11

Maskierposition

12

Demaskiermittel

13

Demaskierposition

14

Maskierkörper

16

coating agents

17

inlet sluice

18

vacuum chamber

19

outlet lock

20

supply means

22

feeding

24

extraction means

26

removal position

28

forming means

30

coolant

32

pretreatment agents

34

Quality control agents

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• WO 2009/030425 A1 [0002, 0003]
• EP 1048746 B1 [0003]

Cited non-patent literature

• Guideline VDI 2840 [0026]

Claims (13)

Device for coating molded parts produced by injection molding, injection blow molding, blow molding and / or deep drawing ( 8th ) with a receiving area for receiving packaged goods, in particular cosmetics, foods or medicines, comprising - supply means ( 20 ) for feeding packaging parts to be coated ( 8th ) into a feed position ( 22 ), - removal means ( 24 ) for removing coated packaging molded parts ( 8th ) from a removal position ( 26 ), - at least one carrier unit ( 6 ) for carrying the packaging moldings ( 8th ), - Mode of Transport ( 1 ) for transporting the at least one carrier unit ( 6 ) from the feed position ( 20 ) to the removal position ( 26 ) on a transport route, - coating agent ( 16 ) comprising a vacuum chamber ( 18 ), which are designed so that they are to be coated packaging molded parts ( 8th ) with a vacuum coating for increasing the passage barrier effect against gases and / or moisture, in particular steam, coated, characterized in that the supply means ( 20 ) upstream shaping means ( 28 ) are provided, which are the packaging molded parts to be coated ( 8th ) by injection molding, injection blow molding, blow molding and / or deep drawing, and that between the shaping means ( 28 ) and the coating agents ( 16 ) Coolant ( 30 ) are provided, which are designed and arranged so that they the packaging molded parts ( 8th ) so that when entering the vacuum chamber ( 18 ) of the coating agent ( 16 ) have a temperature between 10 ° C and 45 ° C, in particular between 15 ° C and 30 ° C, more preferably between 20 ° C and 30 ° C. Apparatus according to claim 1, characterized in that the packaging moldings on entry into the coolant ( 30 ) have a temperature of 50 ° C or higher, in particular between 50 ° C and 80 ° C. Apparatus according to claim 1 or 2, characterized in that the passage time of the packaging parts to be cooled ( 8th ) by the coolant ( 30 ) an integer multiple of the cycle time of the packaging moldings ( 8th ) by the coating agent ( 16 ), whereby the throughput times of the packaging molded parts ( 8th ) by the coating agent ( 16 ) is preferably less than 60 seconds, more preferably less than 30 seconds. Device according to one of claims 1 to 3, characterized in that the coolant ( 30 ), the packaging moldings ( 8th ) are formed cooling with an air and / or fluid flow. Device according to one of claims 1 to 4, characterized in that the coolant ( 30 ) comprise a cooling chamber. Device according to one of claims 1 to 5, characterized in that the means of transport ( 1 ) at least partially by the coolant ( 30 ) are formed. Apparatus according to claim 6, characterized in that the coolant ( 30 ) comprise a paternoster. Device according to one of claims 1 to 7, characterized in that the means of transport ( 1 ) are formed so that they the packaging moldings ( 8th ) linearly through the coating agent ( 16 ) through it. Device according to one of claims 1 to 8, characterized in that the transport path a first and a second linear transport section ( 2 respectively. 4 ), wherein the transport directions of the first and the second transport section ( 2 respectively. 4 ) run anti-parallel to each other. Device according to one of claims 1 to 9, characterized in that the coating agent ( 16 ) a vacuum chamber ( 18 ) and one of the vacuum chamber ( 18 ) in the transport direction of the means of transport ( 1 ) upstream inlet lock ( 17 ) and one of the vacuum chamber in the transport direction of the transport means ( 1 ) have downstream outlet lock ( 19 ). Device according to one of claims 1 to 10, characterized in that on the transport path masking agent ( 10 ) are provided, which are designed so that they are to be coated packaging molded parts ( 8th ) before entering the coating agent ( 16 ) in a masking position ( 11 ) with at least one masking body ( 14 ) coating a coating of functional surface areas of the packaging molded parts ( 8th ), in particular of seal sections, and that on the transport path demasking agent ( 12 ) provided by the coated packaging moldings ( 8th ) the at least one masking body ( 14 ) after exiting the coating agents ( 16 ) in a unmasking position ( 13 ) remove again. Apparatus according to claim 11, characterized in that the masking body and / or the carrier unit, the coolant ( 30 ) at least partially and derive heat from the packaging moldings. Apparatus according to claim 11 or 12, characterized in that the masking and / or the carrier unit, the packaging molding after leaving the coolant ( 30 ) continue to cool.

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