DE102009034715A1 - Injection molding tool for manufacturing closure and/or connection device of spraying gun color beaker utilized to store colorant, has ejection device forming ejection chamfer that is varied from ejection plane - Google Patents

Abstract

The tool (1) has an ejection device (10) for ejecting an injection molding component in a direction of an ejection axis (12) of the tool. The ejection device forms an ejection chamfer (13) that is varied from an ejection plane (14), where the ejection plane is arranged perpendicular to the ejection axis. The ejection device is inclined in an inclination angle (15) opposite to the ejection plane. The inclination angle comprises a value of 15 degree, and the ejection chamfer comprises an ejection ring (11) that is concentrically arranged around the ejection axis. Independent claims are also included for the following: (1) a method for injection molding of an injection molding component i.e. closure and/or connection device, of a spraying gun color beaker (2) a spraying gun color beaker for storing colorant.

Description

The On the one hand, the invention relates to an injection molding tool for manufacturing an injection-molded component of a spray gun paint cup, in particular a Closure and / or connection device thereof, comprising a Ejector device for ejecting the injection-molded component in the direction a Auswerfachse the injection molding tool.

on the other hand The invention relates to an injection molding tool for producing a Closure and / or connection device of a spray gun paint cup comprising an ejector device for ejecting the sprayed Closure and / or connection device in the direction of a Auswerfachse of the injection molding tool, comprising a first injection mold half with a radially outwardly acting mold element for forming a radially inwardly directed threaded member on an outer Bridge of the closure and / or connection device and comprising a second injection mold half with a further radial outwardly acting mold element for forming a further radially inwardly directed threaded element on the closure and / or Connecting device.

Of Furthermore, the invention relates to a closure and / or connection device a spray gun paint cup for direct and / or indirect Attachment to a paint spray gun and a method for injection molding an injection-molded component of a spray gun paint cup, in particular a closure and / or connection device thereof, in which by means of a formula element of at least one injection mold half an injection molding tool at least one an internal thread member forming undercut formed on a web of the injection molded component becomes.

Furthermore The invention relates to a spray gun paint cup for storing of colorants with a cup part and a lid part, wherein the spray gun color cup by means of the cup part or means the lid part can be arranged directly or indirectly on a paint spray gun is. In addition, the invention also relates to a spray gun with a colorant supply to feed the spray gun with Colorants.

generic Injection molding tools for producing an injection-molded component are from the prior art diverse and well known, as well as related Method for injection molding of such an injection-molded component. In particular, injection molding tools for producing a Closure and / or connection device of a spray gun paint cup known, by means of which such a closure and / or connection means of a Spray gun color cup can be sprayed, the spray gun color cup then for direct and / or indirect attachment to a paint spray gun suitable is.

For example, from the published patent application DE 10 2004 003 438 A1 a flow cup for a paint spray gun with a cup-shaped container and a lid can be placed on the container, wherein the lid on the one hand has a connection part for direct attachment of the flow cup to the paint spray gun and on the other hand a quick-release thread for screwing onto the container. The flow cup shown there, in particular in the case of the lid which can be fastened to the spray gun, is in each case an injection-molded component which can preferably be used by the end user as disposable components. In this respect, it is advantageous if they can be produced as inexpensively as possible.

It Object of the present invention methods of manufacture in particular to develop such a flow cup lid such that related injection molded components on the one hand more economical as previously manufactured and on the other hand still with new connection geometries easier to handle.

The The object of the invention is firstly an injection molding tool for producing an injection-molded component of a spray gun paint cup, in particular a closure and / or connection device thereof, comprising an ejector device for ejecting the injection-molded injection-molded component solved in the direction of a Auswerfachse the injection mold, wherein the injection-molded tool is characterized in that the ejector device forms an ejector bevel, which from a perpendicular to the Auswerfachse arranged ejector plane is different.

Favorable Way can with the invention Injection molding tool itself injection molding components particularly advantageous are produced, which at a concentrically encircling component structure have radially further inwardly projecting structural geometries, which for removing the injection molding component via a corresponding Undercut a mold of the injection mold moves must be to thereby the injection molded component from the To be able to demould the mold. This one also speaks from a forced demolition.

Although it is sufficient in simple undercuts of small extent that about a head-side plan ausgestalteter ejector ring is pressed dull against the edge of the concentric rotating component structure, so that the molded component structure can jump over the undercut and thereby forcibly deformed. However, if these structural geometries turn out to be more complex, as is often the case, for example, with internal threads, it is previously necessary to unscrew the corresponding molding tool in order not to damage the threads of the thread during demoulding of the injection-molded component or to ensure a good quality of the thread.

This is especially the case when such a radial inwardly projecting structure geometry additionally axially over extends a critical length.

Favorable Way, such an internal thread in the present case also screwing configured on the spray gun cup, by means of which, for example two components, such as a cup part and a lid part, of a spray gun paint cup can be screwed together.

has an injection molding tool on a related ejector device according to the invention, however, via an ejector bevel, which from a perpendicular to the Auswerfachse arranged Auswerferebene may be different, even at axially higher designed Internal threads on a time-consuming spindling of the injection molded component be omitted, since the concentrically encircling component structure, on which the internal thread is molded, for ejecting the injection-molded component by means of the Auswerferschräge at least temporarily elastic can be widened so that the radially inward Structure geometry problem-free and ideally without quality loss over the undercut of the mold away from the injection mold can be ejected.

The Ejector bevel provides an area which are not arranged in the perpendicular to Auswerfachse Auswerfebene lies.

With the term "closure and / or connection device" is in the present context, essentially a cover part of a spray gun paint cup described, with a cover part variant as a closure device close the spray gun paint cup in a liquid-tight manner can and the cover part for an air supply during a painting a corresponding vent valve can have. With a different cover variant as closure and connection means, the spray gun color cup in addition be connected to a spray gun or the like, wherein the lid part in this case a colorant outlet or a colorant channel and preferably does not include a vent valve.

In In this context, the object of the invention of a Method for injection molding an injection molding component of a Spritzpistolenfarbbechers, in particular a closure and / or Connection device thereof, solved, in which means a molding element of at least one injection mold half an injection molding tool at least one an internal thread member forming undercut formed on a web of the injection molded component is, and in which according to the invention the Internal thread element forming undercut rotation-free and Forcibly deformed over the forming element in translation becomes.

The inventive method is especially then advantageous to injection-molded components for use when opposite end faces the injection molding component in each case an internal thread is molded, in the present case at least at one of the internal threads on a spindles a corresponding formula element can be dispensed with. hereby simplifies the manufacturing process tremendously, reducing costs can be achieved by up to 30%.

Especially It is advantageous in this case if, before compulsory removal of the Bridge a radially inwardly directed single or Mehrgängiges Thread is formed. In particular, this can be almost Any number of new connection geometries, especially at the present Spray the closing and / or connecting device of the spray gun paint cup.

Of the Term "female thread element" describes here a singular element on the inside of the bridge, which in a conventional manner with a counter element a screw or Can make bayonet connection. For making a special good screw connection can several such isolated Be provided internally threaded elements which are spaced apart are arranged concentrically around a central axis. The present Innerthread but can also be a single or multiple Thread helically configured on the web.

In particular, the object of the invention is also achieved by an injection molding tool for producing a closure and / or connection device of a spray gun color cup comprising an ejector device for ejecting the sprayed closure and / or connection device of the spray gun color cup in the direction of an ejection axis of the injection mold, comprising a first injection mold half first radially outwardly acting mold element for forming a radially inwardly directed threaded element on the closure and / or connection device and comprising a second injection mold half with a further radially outwardly acting mold element for forming a further radially inwardly directed threaded element on an outer web of the closure and / or connection device, wherein the injection molding tool is characterized by means for radially expanding the outer web, so that the sprayed closure and / or connecting device can be removed spindle-free from the second injection mold half.

Of the The term "radial expansion means" describes in the present context devices, which by a relative movement to the closure and / or connection device to be demoulded, in particular by a proper movement, especially the outer Web of the closure and / or connection device active radially can widen, so this outer Ridge moved over a mold element of the injection molding tool can be. Ideally, the means for radial expansion arranged at the ejector device or designed directly from her.

such Means for radially expanding an outer web are at an ejector device of an injection molding tool so far not yet known. In this respect, mold elements had to be specially manufactured An internal thread so far always be spindled, which on the one hand designed the injection mold much more complex had to be and on the other hand a demolition process essential took longer. Advantageously, by the simpler Construction of the injection molding tool now a cost saving of approx. 30% in the production of related closure and / or Achieved connection facilities for spray gun paint cup become.

The outer one The web can in this case form an edge region of the injection-molded component.

Also The object of the invention of an injection molding tool for Producing a closure and / or connection device of a A spray gun paint cup comprising an ejector device for Ejecting the sprayed closure and / or connection device the spray gun paint cup in the direction of a Auswerfachse the injection molding tool, comprising a first injection mold half with a first radially outwardly acting mold element for forming a radially inwardly directed threaded element on the closure and / or connecting device and comprising a second injection mold half with a further radially outwardly acting form element for Forming a further radially inwardly directed threaded element on an outer web of the closure and / or Connection device solved, wherein the injection molding tool Means for elastically stretching an injection molding material of the outer Web so that the sprayed closure and / or connection device spindle-free from the at least one injection mold half can be removed.

surprisingly Way, it was found that the still warm injection molding material just enough elastic and behaves in the long Essentially retracts into its original sprayed form, if he is still warm enough. In the present case is as injection molding material preferably Polyethylene used. It could alternatively but also other materials or combinations of materials are used.

Around the injection molding material during forced removal is not permanent and to plastically deform to a critical degree, it is advantageous if the cooling time between the actual Injection molding and ejection of the injected component less than 20 s, this cooling time also always dependent on the injection molding material used can be chosen.

Also the selected wall thickness of the outer web is presently not negligible to the outer To be able to stretch the bridge reversibly. The radial expansion the outer web or the elastic stretching of the Injection molding material can be reversed particularly reliable be made when a critical wall thickness even is not achieved. This can be particularly advantageous taken when a plurality of spaced apart threaded elements be provided on the outer web, so that at the gaps between the individual threaded elements, the wall thickness the outer web not in addition to the material the threaded elements is thickened. As explained below it is beneficial if on the outside Bridge more than four threaded elements are provided. Accordingly is an injection mold half with respect to their form elements designed.

in this regard Means for elastic stretching can also be from a Ejector with a Auswerferschräge structurally particularly easy to be provided.

It It is understood that for the present compulsory removal Required Auswerferschräge to structurally different Manner can be provided.

An advantageous embodiment provides that the ejector device is arranged inclined at an inclination angle relative to the Auswerferebene arranged perpendicular to the Auswerfachse, wherein the inclination angle is a value zwi 5 ° and 40 °, preferably a value between 10 ° and 20 °, in particular a value of 15 °. If, for example, the ejector device is oriented in relation to a molded injection-molded component which is to be ejected, it is already possible to widen the injection molded component in an elastically elastic manner. Practical tests have shown that at a tilt angle of 15 °, a particularly good ratio between an elastic deformability and an ejection speed can be achieved.

A this alternative embodiment provides that the ejector slope facing one of the Auswerfachse End of the ejector device in a tilt angle opposite the ejector plane arranged perpendicular to the ejection axis inclined is arranged, wherein the inclination angle is between 5 ° and 40 °, preferably a value between 10 ° and 20 °, in particular a value of 15 °. Is at an ejector such Auswerferschräge For example, an existing injection molding tool only worked, the present invention structurally particularly easy to already existing injection molding tools are implemented.

In order to the injection-molded component to be demoulded particularly advantageously elastically can be widened, it is extremely favorable when the Auswerferschräge in Auswerfrichtung along the Auswerfachse increases radially inwards.

It It is understood that the present ejector bevel only must partially attack the ejection component to be ejected, to expand this sufficiently elastic. However, a particularly even expansion and to ensure a very reliable ejection, It is advantageous if the Auswerferschräge a concentric comprises ejector ring arranged around the ejection axis.

On Reason for the more uniform attack surface between the injection molding component and the Auswerferschräge if the ejector ring is closed, the risk is also reduced that the injection-molded component at the contact area to the ejector ring or to the Auswerferschräge too pronounced Ejector notch contributes.

A Such ejector notch will be due to the ejection force, which exerted by the ejector device on the injection molded component will not be completely prevented. So you can always good at the finished injection molding, whether a molded element was spindled to form an internal thread member - in In this case, there is no such ejector notch on the injection-molded component or whether the injection-molded component was forcibly demolded. Despite this optical In the absence of force-removal is preferred in this case, since their Advantages prevail in the present case.

has the ejector radially inward on a cutting edge, the Ejector bevel with the ejection component to be ejected particularly advantageous contact. This is due to, that the ejector device with the injection-molded injection molded component at least at the beginning of the ejection only a linear Contact area, whereby an elastic expansion of the injection molded component can be favored.

Out of the ordinary Advantageously, the injection molding tool can be used, if There are two form elements for forming one radially inward directed threaded member to an injection molded component, such as the closure and / or attachment means of the present spray gun cup, two on the injection molding component opposite internal thread to design, as later in the description of the figures is explained clearly.

Regarding Another object of the present invention is the object the invention also of a closure and / or connection device a spray gun paint cup for direct and / or indirect Attachment to a paint spray gun solved, the Closure and / or connection device with an injection molding tool and / or an injection molding according to one of the explained here Characteristics is made. This closure and / or connection device stands out with regard to its advantageously designed internal thread through a particularly good and practice-oriented handling. Advantageously, it can be produced particularly economically become.

To In another aspect, the object of the invention is also a Spray gun paint cup for storing colorants with a cup part and solved with a lid part, wherein the spray gun paint cup by means of the cup part or by means of the cover part directly or can be arranged indirectly on a paint spray gun, and the spray gun paint cup Connection means with a guide piece and a this Guide neck at least partially surrounding border having.

Favorable Way, the spray gun paint cup due to the presence of the management stubbornly more targeted to a corresponding one Fastening device of a paint spray gun or an adapter be introduced and connected.

components the spray gun color cup can advantageously by means of one of the injection molding tools described here or by means of of the present method. For example, you can Also, the connection means are positively forcibly demolded.

Consequently sees a particularly preferred embodiment also before, that the spray gun paint cup described here a closure and / or Connection device according to one of the features described here having.

Further it is advantageous if the guide neck axially longer is designed as the border. In this respect dominates the Guide the border so that the entire spray gun paint cup well precentered by means of the guide stub to a corresponding corresponding fastening device can be connected.

forming the guide nozzle a colorant channel, the guide can advantageous to take over another function.

Should the spray gun paint cup also as a storage container can be used for colorants, it is advantageous if the guide neck a seat for a closure means includes. It is understood that this seat inside and / or be provided on the outside of the guide neck can.

Favorable Way is between the guide neck and the border a receiving space for placing a fastening device of a Colorant supply arranged a paint spray gun, whereby the Danger is reduced, that the fastening device itself over a large area contact with paint can. In this respect, this reduces the cleaning effort a paint spray gun or a related adapter further.

It It is understood that this connection is constructive can be done different ways. For example, the spray gun paint cup becomes with its connection means on a corresponding thereto fastening device attached and connected only by clamping. A special However, secure connection can be made when the border designed an internal thread.

Though Alternatively, an external thread can be attached to the guide stub be provided. However, the internal thread at the border has the outstanding advantage that a corresponding thereto fastening device a spray gun or a related Adapters corresponding to an external thread, which obviously very well accessible from outside is. In this respect, such an external thread much better be cleaned of colorant residues. This is of particular importance since paint spray guns or Related adapter in contrast to the present here Spray gun paint cups are not constructed as disposable components. is the present internal thread of the connection means, however, with paint contaminated, this does not play a significant role, since the spray gun paint cup As disposable component is often disposed of after use, so that a cleaning in particular the connection means of the spray gun color cup superfluous is. Alone for this reason is the underlying of the invention Spray gun paint cup over conventional spray gun paint cups particularly advantageously applicable in practice.

The The border of the connection means can be structurally different be designed. Is the border concentric around the guide neck arranged around, the spray gun paint cup can be force-related particularly even with a corresponding thereto Fastener be brought into contact.

A further particularly advantageous embodiment sees in that the connection means comprise a double sealing device a first seal seat and a second seal seat. On the one hand, the connection means can thereby immediately Take over sealing functions. On the other hand, means Such a double sealing device virtually eliminates the danger that colorants can inadvertently enter the environment, when working. This is also after a successful painting advantageous because this reduces the risk that already painted surfaces contaminated by leaking colorant become.

Especially simply build the connection means when the guide neck having the first seal seat and the border the second Sealing seat has.

hereby result in two consecutively acting sealing options, wherein the first seal seat is disposed radially inward as the second seal seat.

In In this context, it is also advantageous if the first seal seat arranged axially further away from an internal thread of the connection means is as the second seal seat. So can the seal seats with different paragraphs of a corresponding Fastening device cooperate.

is In addition, at least one of the two sealing seats designed conically, If the sealing ability can be increased again, as a result, an improved material compression of the present Double seal device and thus a seal improvement can be achieved. Normally, such double bumps avoided in the general construction because of tolerances often always only at a seal seat optimally working Seal can be produced. Due to the present softer Material and especially a weakening of the wall thickness However, this is neglected in the present case by the cone become.

Prefers However, the first seal seat by means of the outer Formed lateral surface of the guide neck. Here, the outer lateral surface of the guide neck radially with a spacious Inner wall of a channel, for example, an adapter correspond, which advantageously a very large first Seal seat between the guide neck and the adapter can be guaranteed. Advantageously, can up Reason of the radially acting first seal seat on an axial Sealing stop for the guide neck omitted become. In this embodiment, the guide nozzle tip radially outwardly ideally ideally conically shaped so that the guide neck can be easily inserted into the channel of the adapter.

Of the second seal seat can still axially on the border tip provided so that the border axially on a shoulder, like a T-edge of an adapter, put on and there in addition can dense.

It It is understood that the connection means either on the cup part or may be provided on the cover part, depending on which system a user prefers.

Not only in this context, it is advantageous if the spray gun color cup screwing for attaching the lid part to the cup part, wherein the Screwing means more than four threaded elements, preferably six threaded elements, include. Especially with six threaded elements, the cover part particularly uncomplicated and quickly screwed to the cup part because of the special connection geometry of the six Threaded elements only a very small relative movement between the Cover part and the cup part is required to these firmly together to be able to connect. This eliminates one so far often time-consuming handling of the components of a Airbrush color cup. This can also be the danger of a colorant accident be significantly reduced.

The Threaded elements can in this case be spaced apart from each other be arranged or in an alternative embodiment the threaded elements can be a coherent one Internal thread designed with one or more threads.

It It is further understood that the presently discussed advantageous connection means both on the cup part of the spray gun color cup and also provided on the cover part of the spray gun paint cup could be.

At It should be noted that both the features in terms of the present closure and / or connection device as well the features of the spray gun paint cup described here as well without the other features of the invention being advantageous, since they are already considered generic Closure and / or connection devices or spray gun paint cup develop particularly advantageous.

About that In addition, the object of the invention is also a spray gun with a colorant supply to feed the spray gun with Colorants dissolved, with the colorant supply by a Device for attaching connection means of a spray gun paint cup characterized according to one of the features described herein. By such a fastening device is the handling of the spray gun considerably simplified in everyday use.

includes the colorant supply alternatively a replaceable Farbmittelleiteinrichtung the spray gun, the interchangeable Farbmittelleiteinrichtung after a spraying process as well as the spray gun paint cup be disposed of advantageously, so that a cleaning of farbmittelleitenden Areas on the spray gun is not required. The interchangeable Farbmittelleiteinrichtung is characterized in that in her the colorant is passed through the spray gun, without that the coloring agent hereby with the actual body the spray gun comes into contact.

Such exchangeable Farbmittelleiteinrichtungen are for example from the published patent applications DE 10 2004 027 789 A1 or EP 1 964 616 A2 known.

Should or can the spray gun paint cup with its connection means not directly connected to the spray gun and fastened, It is also advantageous if between the spray gun and the Spray gun color cup an adapter is arranged.

Further Advantages, objects and characteristics of the present invention described with reference to the following description of the attached drawing, in which an exemplary injection molding tool with an ejector device comprising a Auswerferschräge and hereby produced Components of a spray gun paint cup are shown.

It demonstrate:

1 schematically a sectional view of an injection molding tool comprising an ejector ring with an ejector bevel;

2 schematically a detailed view of the ejector bevel of the injection mold from the 1 ;

3 schematically a partially sectioned view of a cover part of a spray gun paint cup in the form of a closure and connection device with connection means comprising a guide neck and a surrounding this guide nozzle concentric border;

4 schematically a partially sectioned view of a lid member in the form of a closure device for a cup part of a spray gun paint cup; and

5 schematically shows a partially sectioned view of a cup part of a spray gun color cup with connection means comprising a guide sleeve and this guide sleeve concentrically surrounding border.

That in the 1 injection molding tool shown 1 is for producing a closure and / or connection device 2 (see in particular 3 ) of a spray gun color cup not shown in detail, wherein the closure and / or connection device 2 according to the 3 a lid part 3 the spray gun color mug is.

Because the injection mold 1 is constructed essentially in a conventional manner, its description is limited only to the essential the closure and / or connection device 2 imaging components. The injection mold 1 comprises a die-side injection mold half 4 , an ejector-side injection mold half 5 and a core 6 , In the area of the die-side injection mold half 4 there is a first form element 7 , by means of which connection means 8th the closure and / or connection device 2 can be trained. The structure of these connection means 8th is particularly related to the 3 will be explained in detail.

The first form element 7 is in this embodiment in the axial direction 9 from the area of the die-side injection mold half 4 can be screwed out on the injection molding tool 1 intended.

In the area of the ejector-side injection mold half 5 is an ejector device 10 provided by means of which the closure and / or connection device to be sprayed 2 after a successful injection molding and with separate injection mold halves 4 and 5 from the injection mold 1 can be ejected. The ejector device 10 encloses the ejector-side injection mold half 5 concentric and is thus as ejector ring 11 designed. The ejector ring 11 can be used to eject the closure and / or connection device 2 along a Auswerfachse 12 be moved so that the closure and / or connection device 2 in the axial direction 9 from the ejector-side injection mold half 5 can be solved.

The ejector device 10 or the ejector ring 11 has this an ejector bevel 13 on which from a perpendicular to the Auswerfachse 12 arranged ejector level 14 is different. The ejector bevel 13 is here opposite to the vertical ejector plane 14 at a tilt angle 15 inclined by 15 °. The ejector bevel 13 rises along the Auswerfachse 12 radially inward so that they have an outer web 16 the closure and / or connection device 2 can actively expand, eliminating the outer web 16 via a radially outwardly acting form element 17 the ejector-side injection mold half 5 despite radially inwardly directed threaded elements 18 can be forcibly forcibly demolished.

Radial inside next to the outer bridge 16 is still an inner jetty 19 provided, which the threaded elements 18 protect against color contamination.

For a particularly gentle and good expansion of the outer bridge 16 can the ejector device 10 or the ejector ring 11 with a cutting edge provided radially inside 20 to which the Auswerferschräge 13 runs out, well behind. Will the ejector bevel 13 in an ejection movement in the axial direction 9 moved, the outer bridge slides 16 along this ejector slope 13 radially outward, this is stretched elastically and the closure and / or connection device 2 Thus, despite radially inwardly directed threaded elements 18 over the forming an undercut radially outwardly acting form elements 17 gently forcibly evacuated.

This makes it possible in a structurally particularly simple way, the present injection molding tool 1 easy to set up, although the closure and / or connection device 2 equipped with two directly opposite internal threads.

In this respect, the present injection molding tool 1 , in particular due to the Auswerferschräge 13 , both with funds 21 for radial expansion of the outer web 16 as well as with funds 22 for elastically stretching an injection molding material of the outer web 16 equipped.

Due to the fact that the radially inwardly directed threaded elements 18 rotation-free and translational over the radially outwardly acting mold element 17 can be forcibly demoulded away, it is procedurally particularly easy, on the lid part 2 screw 25 for attaching the lid part 3 attach to a not shown here Cup part of a spray gun color cup particularly advantageous. Whereby the screwdrivers 25 more than four threaded elements 18 exhibit. In the present embodiment are on the lid part 3 a total of six threaded elements 18 provided, whereby the cover part 3 can be screwed to the cup part with a particularly brief rotational movement, for example, a little more than one revolution.

While the screwdrivers 25 Cup part on the lid part 3 are provided, the connection means already mentioned above 8th spray gun side or adapter side on the cover part 3 oriented.

The connection means 8th here include a guide neck 26 and a this guide neck 26 surrounding border 27 which is an internal thread 28 at the connection means 8th designed. Between the guide neck 26 and the outline 27 is a recording room 29 for placing a fastening means, not shown here, a colorant supply of a spray gun or an adapter provided. Advantageously, the guide neck 26 designed axially longer than the border 27 so the guide neck 26 over the border 27 protrudes. This allows the lid part 3 particularly straightforward and quickly connected to a corresponding fastening device.

The connection means 8th However, in the present case, not only serve the quick connection or the attachment of the cover part 3 to a corresponding fastening device but at the same time also the sealing of a colorant channel 30 which should correspond to a suitably trained colorant supply liquid-tight.

Advantageously, with the present connection means 8th a double seal device 31 with a first radially inner seal seat 32 and a second seal seat radially further outward therefor 33 be formed. The first seal seat 32 is here at the end 34 of the guide neck 26 and the second seal seat 33 is by means of an end 35 the border 27 provided.

Present is at least the end 34 of the guide neck 26 configured conical, so that a particularly good sealing effect can be achieved when the lid part 3 is screwed to a corresponding fastening device. Due to the conical design of the material at the end 34 of the guide neck 26 be particularly well compressed, so that an exceptionally good sealing effect can be achieved. Likewise, the end may 35 the border 27 be configured conical.

Inside of the lid part 3 and in front of the colorant channel 30 is still a holder 36 provided for a plug-in screen, not shown here, so that the colorant can still be filtered advantageous when leaving the spray gun paint cup.

Alternatively to the cover part 3 , which as a closure and connection device 2 is designed, a lid part 40 only as a closure device 41 for a cup part 42 (please refer 5 ) be formed. Also the cup part 40 has screwdrivers 25 , which radially inwardly directed threaded elements 18 include that on an outer dock 16 of the lid part 40 are formed. In addition, the lid part has 40 also over an inner bridge 19 that extends axially beyond the outer web 16 protrudes. However, the cover part has 40 no connection means. But for a ventilation device 43 , which can be closed again.

By means of the screwdriver 25 can the lid part 40 firm but detachable to the cup part 42 be screwed, with the cup part 42 for this purpose via corresponding threaded counter-elements 44 features. Bottom side of the cup part 42 are connection elements 8th with a guide neck 26 and a border 27 provided, which identical connection means 8th ausgestalten, as already with regard to the cover part 3 from the 3 described. In this respect, functionally essentially identical structures are identified by identical reference symbols. In particular, the guide neck 26 forms a colorant channel 30 containing a colorant storage area 45 of the cup part 42 with a colorant supply (not shown here) can connect a syringe gun.

All features disclosed in the application documents claimed as essential to the invention, provided they individually or in combination with the prior art.

LIST OF REFERENCE NUMBERS

1

injection mold

2

Lock and / or connection device

3

cover part

4

die side Mold member

5

ejector- Mold member

6

core

7

first forming element

8th

connection means

9

axial direction

10

ejector

11

ejector ring

12

Auswerfachse

13

Auswerferschräge

14

vertical Auswerferebene

15

tilt angle

16

outer web

17

radial outwardly acting form element

18

radial inwardly directed threaded elements

19

internal web

20

cutting edge

21

medium for radial expansion

22

medium for elastic stretching

25

screw

26

guide socket

27

border

28

inner thread

29

accommodation space

30

Colorants channel

31

Double sealing device

32

first seal seat

33

second seal seat

34

The End of the guide neck

35

The End the border

36

holder

40

additional cover part

41

closure device

42

cup part

43

aerator

44

Thread counter elements

45

Colorants storage area

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 102004003438 A1 [0006]
• DE 102004027789 A1 [0064]
• - EP 1964616 A2 [0064]

Claims (29)

injection mold 1 for producing an injection-molded component of a spray-gun color cup, in particular a closure and / or connection device ( 2 ; 41 ) thereof, comprising an ejector device ( 10 ) for ejecting the injection-molded component in the direction of a Auswerfachse ( 12 ) of the injection molding tool, characterized in that the ejection device ( 10 ) an ejector slope ( 13 ), which from a perpendicular to the Auswerfachse ( 12 ) arranged ejector level ( 14 ) is different. injection mold 1 according to claim 1, characterized in that the ejector device ( 10 ) at a tilt angle ( 15 ) opposite to the perpendicular to the Auswerfachse ( 12 ) arranged ejector level ( 14 ) is inclined, the angle of inclination ( 15 ) has a value between 5 ° and 40 °, preferably a value between 10 ° and 20 °, in particular a value of 15 °. injection mold 1 according to claim 1, characterized in that the Auswerferschräge ( 13 ) at one of the Auswerfachse ( 12 ) facing the end of the ejector device ( 10 ) at a tilt angle ( 15 ) opposite to the perpendicular to the Auswerfachse ( 12 ) arranged ejector level ( 14 ) is inclined, the angle of inclination ( 15 ) has a value between 5 ° and 40 °, preferably a value between 10 ° and 20 °, in particular a value of 15 °. injection mold 1 according to one of claims 1 to 3, characterized in that the Auswerferschräge ( 13 ) one concentrically around the ejection axis ( 12 ) arranged ejector ring ( 11 ). injection mold 1 according to one of claims 1 to 4, characterized in that the Auswerferschräge ( 13 ) along the ejection axis ( 12 ) in the ejection direction ( 9 ) increases radially inwardly. injection mold 1 according to one of claims 1 to 5, characterized in that the ejector device 10 radially inside a cutting edge 20 having. injection mold 1 according to one of claims 1 to 6, characterized in that the injection molding tool has two form elements ( 17 ) for forming in each case a radially inwardly directed threaded element ( 18 ) having. Injection molding tool ( 1 ) for producing a closure and / or connection device ( 2 ; 41 ) of a spray gun paint cup comprising an ejector device ( 10 ) for ejecting the sprayed closure and / or connection device ( 2 ; 41 ) in the direction ( 9 ) a Auswerfachse ( 12 ) of the injection molding tool 1 comprising a first injection mold half ( 4 ) with a first radially outwardly acting mold element ( 7 ) for forming a radially inwardly directed threaded element ( 18 ) on the closure and / or connection device ( 2 ; 41 ) and comprising a second injection mold half ( 5 ) with a further radially outwardly acting form element ( 17 ) for forming a further radially inwardly directed threaded element on an outer web ( 16 ) the closure and / or connection device ( 2 ; 41 ), characterized by means ( 21 ) for radial expansion of the outer web ( 16 ), so that the sprayed closure and / or connection device ( 2 ; 41 ) spindle-free from the second injection mold half ( 5 ) can be removed. Injection molding tool ( 1 ) for producing a closure and / or connection device ( 2 ; 41 ) of a spray gun paint cup comprising an ejector device ( 10 ) for ejecting the sprayed closure and / or connection device ( 2 ; 41 ) in the direction ( 9 ) a Auswerfachse ( 12 ) of the injection molding tool ( 1 ), comprising a first injection mold half ( 4 ) with a first radially outwardly acting mold element ( 7 ) for forming a radially inwardly directed threaded element ( 18 ) on the closure and / or connection device ( 2 ; 41 ) and comprising a second injection mold half ( 5 ) with a further radially outwardly acting form element ( 17 ) for forming a further radially inwardly directed threaded element on an outer web ( 16 ) the closure and / or connection device ( 2 ; 41 ), characterized by means ( 22 ) for elastically stretching an injection molding material of the outer land ( 16 ), so that the sprayed closure and / or connection device ( 2 ; 41 ) spindle-free from the first injection mold half ( 5 ) can be removed. Method for injection molding an injection-molded component of a spray gun paint cup, in particular a closing and / or connecting device ( 2 ; 41 ) thereof, in which by means of a formula element ( 17 ) at least one injection mold half ( 4 . 5 ) of an injection molding tool ( 1 ) at least one female thread element ( 18 ) forming undercut on a bridge ( 16 ) of the injection-molded component, characterized in that the female thread element ( 18 ) forming undercut rotation-free and translationally over the mold element ( 17 ) is forcefully demolished. Injection molding method according to claim 9, characterized in that before the forced removal on the web ( 16 ) a radially inwardly directed catchy or multi-start thread ( 18 ) is formed. Closure and / or connection device ( 2 ; 41 ) of a spray gun paint cup for direct or indirect attachment to a paint spray gun, characterized in that the closure and / or connection device ( 2 ; 41 ) with an injection mold 1 and / or an injection molding method according to one of the preceding claims. Spray gun paint cup for storing colorants with a cup part ( 42 ) and a lid part ( 3 ; 40 ), wherein the spray gun color cup by means of the cup part ( 42 ) or by means of the cover part ( 3 ; 40 ) can be arranged directly or indirectly on a paint spray gun, characterized in that the spray gun paint cup connecting means ( 8th ) with a guide neck ( 26 ) and a this guide neck ( 26 ) at least partially surrounding border. ( 27 ) having. Spray gun paint cup according to claim (13), characterized in that the guide neck ( 26 ) Is configured axially longer than the border ( 27 ). Spray gun paint cup according to one of claims (13) or (14), characterized in that the guide neck ( 26 ) a colorant channel ( 30 ). Spray gun paint cup according to one of claims (13) to (15), characterized in that the guide neck ( 26 ) a seat for a closing means of a dye channel ( 30 ). Spray gun paint cup according to one of claims (13) to (16), characterized in that between the guide neck ( 26 ) and the border ( 27 ) a recording room ( 29 ) is arranged for placing a fastening means of a colorant supply of a spray gun. Spray gun paint cup according to claim (13) to (17), characterized in that the border ( 27 ) an internal thread ( 28 ) designed. Spray gun paint cup according to one of claims (13) to (18), characterized in that the border ( 27 ) concentrically around the guide neck ( 26 ) is arranged around. Spray gun paint cup according to one of claims (13 to 19), characterized in that the connection means ( 8th ) a double seal device ( 31 ) with a first seal seat ( 32 ) and a second seal seat ( 33 ). Spray gun color cup according to claim (20), characterized in that the guide neck ( 26 ) the first seal seat and the border ( 27 ) the second seal seat ( 33 ) exhibit. Spray gun paint cup according to claim (20 or 21), characterized in that the first seal seat is arranged radially further inward than the second seal seat ( 33 ). Spray gun paint cup according to one of claims (20 to 22), characterized in that the first seal seat ( 32 ) axially further away from an internal thread ( 28 ) of the connection means ( 8th ) is arranged as the second seal seat ( 33 ). Spray gun paint cup according to one of claims (19 to 22), characterized in that at least one of the two sealing seats ( 32 . 33 ), preferably both sealing seats ( 32 . 33 ), is conical. Spray gun paint cup according to one of claims (12 to 23), characterized by screw means ( 25 ) for attaching the lid part ( 3 ; 40 ) to the cup part ( 42 ), wherein the screw means ( 25 ) more than four threaded elements ( 18 ), preferably six threaded elements ( 18 ). Spray gun paint cup according to one of claims (12 to 25), characterized in that the spray gun paint cup, in particular the cover part ( 3 ; 40 ) a closure and / or connection device ( 2 ; 41 ) according to claim (12). Spray gun with a colorant feed for charging the spray gun with colorants, characterized in that the colorant supply means for attaching connection means a spray gun paint cup according to any one of claims (12 to 26). Spray gun according to claim (27), characterized that the colorant supply a replaceable Farbmittelleiteinrichtung the spray gun comprises. Spray gun according to claim (27 or 28), characterized characterized in that between the spray gun and the spray gun paint cup an adapter is arranged.

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