EP3448681A1

EP3448681A1 - Round template receiver ring and rotational application device provided with same

Info

Publication number: EP3448681A1
Application number: EP16719371.3A
Authority: EP
Inventors: Josef POSARNIG
Original assignee: J Zimmer Maschinenbau GmbH
Current assignee: J Zimmer Maschinenbau GmbH
Priority date: 2016-04-25
Filing date: 2016-04-25
Publication date: 2019-03-06
Anticipated expiration: 2036-04-25
Also published as: EP3448681B1; WO2017186261A1

Abstract

The invention relates to a round template receiver ring (1) comprising a bearing connection ring (2) that can connect to a template pivot bearing (71) for pivotal bearing, and a receiver securing means (30) that is designed for detachable rotationally fixed connection to a template end-ring edge (611) of a template end ring (61) attached to a cylinder template (6). The round template receiver ring (1) has two concentric ring bodies that are rotationally joined to one another and axially offset. The one ring body forms the receiver securing means (30) in the form of an openable securing ring (3), which forms a ring receiver that is open via a through opening (33) in the opening state for freely introducing and removing the template end-ring edge (611), and which forms a ring receiver closing the through opening (33) in the closing state, with a securing ring seat (35) formed over the entire ring circumference, which binds the template end-ring edge (611) for rotationally fixed securing. The other ring body forms a bearing connection ring (2) that can be connected to a template pivot bearing (71). The securing ring (3) has a ring base segment (31) and at least one closure segment (32) which can move relative to the ring base segment (31), and which forms an opening and closing part for creating the open and the closed ring receiver. A rotational application device (5) comprises at least one cylinder template (6) with associated pivot bearing device (7). At least one template end ring (61) of the cylinder template (6) is connected to the template pivot bearing (71) of the pivot bearing device (7) by means of the round template receiver ring (1).

Description

Round template receiving ring and thus equipped rotary application device

The invention relates to a round template receiving ring, adapted for connecting a cylinder template, by means of the substance to a substrate supported by a substrate substrate is transferable, with an arranged on a device rack pivot bearing means for pivotally mounting the cylinder template about a predetermined axis through the cylinder template rotation axis, said Template receiving ring is formed by a bearing connection ring, which is connectable to the pivot bearing with a template pivot bearing of the pivot bearing device, and by a receiving fastener, which for releasable rotationally fixed connection with a stencil end edge of a template attached to the cylinder template stencil is formed, wherein the receiving-fastening means for axial clamping of the cylinder template can be acted upon with axial force. The invention also relates to a rotary application device, comprising at least one cylinder template with a first and second stencil end ring, which are attached to the ends of the cylinder stencil, a device frame, on which a below the cylinder template extending substrate carrier is arranged, and the Ends of the cylinder template associated template pivot bearing a pivot bearing device, which are arranged on the device frame and with which the stencil end rings are connected to the pivotal mounting of the cylinder template.

Cylinder stencils, also referred to as circular stencils, are used in rotary applicators to produce screen prints or coatings on a substrate past the cylinder stencil. The cylinder template is removably installed in the application device of a printing or coating machine, where it can be used for such an equipment at its axial ends in a pivot bearing device and can be seen therefrom. For this connection, a recording and storage system is required, which removably receives each stencil end and rotatably supports. The axial ends of the cylinder template have stencil end rings, which are glued into a substance-permeable template sleeve defining a disposition structure. Each stencil end ring is releasably connectable to a stencil receiving ring. The stencil up The sewing ring can be connected to an associated template pivot bearing of a bearing head designated as a print head or station head. There are different recording systems and different storage systems known. A system widely used in the market employs a template receiving ring provided with locking elements of a bayonet catch which are mated with corresponding bayonet-engaging elements of a releasably secured skull end-ring. The stencil end ring and stencil receiving ring can be axially inserted into one another and connected and separated by relative rotation about the stencil rotation axis, whereby a connection which can be subjected to pressure for axial clamping of the cylinder stencil is produced. A bayonet connection between template end ring and template receiving ring is known for example from DE 2031 0859 U 1 and WO 2009/030301. In each case, a system is disclosed in which the template receiving ring is formed as a special bearing connection ring which forms a rotary bearing element, namely an inner bearing ring of a template pivot bearing. This inner bearing ring can be the template pivot bearing, which can be opened by means of at least one portal segment, remove upwards, so that the cylinder template, in particular with inserted therein doctoring device, dug upwards from the pivot bearing or vice versa can be used. The template pivot bearing on at least one of the stencil ends is equipped with a rotary drive. The separation of the bearing receiving ring from the drive rotary bearing leads to the loss of a repeat, that is set to be set for application operation defined rotational position of the template. In order to maintain this defined rotational position for continued operation of the cylinder template after renewed setup, in particular after its cleaning, it is necessary that the attachment between the template receiving ring and the stencil end ring on the side of the drive pivot bearing for removing the cylinder template loosened and is restored for insertion. For this purpose, the bayonet connection must be solved or restored by axial offset and relative rotation between the parts. The necessary measures are technically and technically complex handling. Take-up rings on which bayonet-type closure elements are formed are, for example, also made

WO 03/093013 A2, DE 84 23 036 U 1 and EP 0 533 053 A1. In order to facilitate the connection of a cylinder template with a template receiving ring, template receiving rings with U-shaped receptacles are provided. hen, which are provided only in a ring half with radially projecting receiving elements (EP 0 533 053 A1, column 1, lines 22 to 31, AT 303 659, AT 296928). The cylinder template can be removed or inserted into the template receiving ring transversely to the template rotation axis, preferably from above. Template receiving rings with bayonet-type closure elements arranged distributed on the edge of the ring have the advantage that the clamping of the cylinder template between the template pivot bearings takes place uniformly over the entire circumference of the template. On the other hand, the template receiving rings, which are provided with fastening elements on only one half of the ring, do not permit a uniform attack on the received stencil end ring over its entire circumference for axial clamping of the cylinder template.

With regard to the setup and operation of cylinder stencils, in particular in a rotary application device having a multiplicity of printing / coating stations, a number of conditions and requirements must be observed and are decisive. The cylinder template is a particularly fragile object whose template sleeve tends to deform, which is to meet the highest precision requirements. In several stations very different cylinder templates can be used. A special influence to be avoided is, for example, due to a particularly low torsional stiffness, which depends on fine, coarse, full or partial screen patterns, due to differences in the stencil screen material, as a result of considerable different loading of the cylinder template with different doctor blade devices operating against it during operation , by different twisting behavior as a function of one-sided or zweeiteiti- like drive the cylinder template, by different, different handling conditional Endringkonstruktionen and by different handling requirements when setting with inserted into the cylinder template or removed from her squeegee. All these characteristics and requirements meet the known recording systems only imperfectly and partially. Here, in contrast to the known recording systems bound to end-ring constructions, it is important to considerably simplify the handling for setting up and to ensure operation of even very fragile cylinder stencils having the highest precision requirements. The invention are then based on the objects to provide a template-receiving ring for a recording system, the uniformed axial clamping of the Cylinder template over its entire circumference and also a simple and defined equipping the cylinder template, guaranteed, with a special separation or handling of bearing elements intended for a pivot bearing of the cylinder template pivot bearing device should be avoided.

The objectives are achieved in conjunction with the features of the above-mentioned template receiving ring, characterized in that the template receiving ring is formed by two concentric, rotationally fixed together, axially offset annular body, said one ring body, the receiving fastener in the form of an openable Fastening ring forms, which forms an open passage with a through-opening ring receptacle for free insertion and removal of stencil Endringrandes in the open state and the closed passage closing a passage, thereby closed ring receptacle with a formed over the entire ring circumference fastening ring seat, which forms the Stencil end ring edge for non-rotatable mounting framed, and wherein the other annular body forms the bearing connection ring, wherein the fastening ring is formed by a ring base member and at least one relative to the ring base segment movable closure segment, the forms part of opening and closing, for producing the open ring-holder or the closed ring receiving.

A rotary applicator according to the invention comprising at least one cylinder template with first and second stencil end rings attached to the ends of the cylinder stencil, a device frame on which a substrate carrier extending below the cylinder stencil is disposed, and a pivot bearing device with the axial ends of the cylinder template associated template pivot bearings, which are arranged on the device frame and with which the stencil end rings are connected to the pivotal mounting of the cylinder template, characterized in that the stencil end ring at least one axial end of the cylinder template by means of a stencil receiving ring according to the invention with the associated stencil pivot bearing is connected. The rotary bearing device is set up such that a doctor device, which is arranged in the cylinder template for pushing substance through, can be inserted into or removed from the cylinder template. It is possible to provide devices known per se for equipping the doctor device with associated substance supply tube, namely, on the one hand, for preparing the doctor device together with the cylinder template by jointly lowering or lifting or, on the other hand, separates it by axial displacement of the doctor device in the cylinder template still located between the template pivot bearings.

With the measures according to the invention to achieve a number of advantages. The template receiving ring according to the invention combines the two annular bodies such that, on the one hand, the cylinder template is independent of a template pivot bearing, with which the template receiving ring is connectable, in the template receiving ring transversely to the ring axis - without a rotational and axial displacement engagement of Fastening elements and preferably from above - can be used and removed therefrom, and such that on the other hand, the stencil end ring can be enclosed by means of the fastening ring seat in the template receiving ring over its entire circumference. When tensioning the cylinder template resulting axial pressure is distributed over the entire circumference of the round-shaped mounting ring seat. This leads to a correspondingly uniform axial clamping of the cylinder template over its longitudinal circumference. A peripheral part or section of the fastening ring seat is formed on the base segment as well as on the or each closure segment. In this case, the fixing ring seat can be circumferentially interrupted continuously or circumferentially, that is, divided into spaced-apart ring sections, be formed. According to this provision, training is to be understood over the entire circumference of the ring. In the enclosure formed by the mounting ring seat is an at least axially positive enclosure, which produces as such positive engagement against movement in the axial direction. Unless additionally provided with a centering or connection fit, this form-locking connection permits a relative rotation between the template receiving ring and the cylinder template about its coaxial axes when the cylinder template is not tensioned. It is essential that a bearing connection ring facing the radial annular surface of the fastening ring seat or the enclosure, for example, a closed circumferentially or intermittently circumferentially formed radial annular edge such as a radial web or radial webs, by means of the radial stencil Endringrandes with axial Pressure force can be acted upon. The axial compressive force which creates a frictional connection is transmitted via the receiving ring to the stencil end ring to produce in the cylinder stencil a tensile stress required for axial tensioning. The axial adhesion as such causes a non-rotatable, ie relative rotation of the parts blocking each other, connection between the stencil receiving ring and the stencil end ring edge. The pulling force for axial clamping of the cylinder template can, as is known per se, be determined by each, for example, on a device. tion frame or arranged on a pivot bearing device clamping device are generated in order to transmit to the mounting ring seat, the axial compressive force, ie to apply it to it. The at least one closure segment is arranged and arranged such that the fastening ring in the open state has the opening passage which is opened so far that the template end ring edge with its diameter transversely to the ring axis of the template receiving ring, with the axis of rotation of the inserted cylinder template coincides, can be placed in the annular space of the mounting ring and can be removed therefrom. The ring base segment of the fastening ring can be easily located in a bottom region, namely in the region of a substrate carrier, eg. B. arranged on a device frame and guided transport or blanket, so that the open closure segment, the loading of the template-receiving ring preferably from above, and thus retrofitting technology particularly simple and time-saving. The bearing connection ring is designed and set up in such a way that the template receiving ring can be connected with a uniform force distribution over its entire circumference with the associated template pivot bearing. Suitably, the bearing connection ring is designed as a solid ring.

The non-rotatable union of the mounting ring and the bearing connection ring is generally determined by the fact that the two rings, for example by means of a

Materialschluss-, frictional or positive connection, secured against relative rotation to each other and are connected together to form a unit. The non-rotatable connection of the two annular bodies, in particular by means of a relative rotation blocking positive connection, be set up so that the mounting ring and the bearing connection ring axially relative to each other defined movable arranged and connected to each other. For example, a spring means may be interposed between the two rings to spring-bias the rings relative to one another or to produce axial spring force. Without such interposed, variable relative axial position of receiving mounting ring and bearing connecting ring defining and limiting

Spring means are the parts of the receiving mounting ring axially fixed, that is, motion-free connected to each other.

According to the invention, a receiving system with the template receiving ring is obtained, in which, in summary, the cylinder template can be inserted transversely to the ring axis, in particular from above, wherein for clamping the cylinder template, an over the stencil end ring uniform distribution of axial clamping force is ensured. In particular, a bayonet connection or a connection distorting the axial tension over the circumference of the template is dispensed with. The inventive

Stencil receiving ring or the recording system thus established can be for each rotary / circular stencil-application machine, regardless of the type of rotary mounting of the cylinder template, for example, for closed or open storage, and regardless of the type, arrangement and attachment of a

Insert clamping device for axial clamping of the cylinder template. The stencil take-up ring according to the invention also has the advantage that it can be used for fixing stencil end rings, the stencil end edge of which is designed for receiving systems with bayonet-type fasteners, such stencil end ring edges having distributed discontinuities in the form of recesses along their circumference. Particularly advantageous is a cylinder template with circumferentially closed stencil end ring edge connect to the template receiving ring. The template Endringrand is then closed so that recesses z. B. omitted for bayonet-like rotational offset projections. The term "axial" in each case in the context as parallel to or in the direction of the ring axis of the template receiving ring or an axis coaxial with the ring axis understood. The term "axial" also refers to parts or surfaces which extend in the axial direction and in which the ring axis or a coaxial axis lies. The term "radial" refers to directions that originate from an associated axis and are directed perpendicular to this axis. It also refers to parts or surfaces which extend perpendicularly and radially with respect to an axis. By "ring" is basically understood a circular ring. However, special cases are not excluded which, in compliance with the abovementioned essential inventive functions, deviate from the circular ring shape, for example with straight or polygonal ring segments or sections.

The bearing connection ring and the attachment ring are preferably united in a component captive, which is acted and handled in one piece. Preferably, the ring base segment and the bearing connection ring are integrally formed and thereby axially fixed to each other. The or each movable closure segment is preferably integrated in the fastening ring such that the together ring body formed with the ring base segment in the closed state has a non-protruding, smooth outer surface.

The bearing connection ring of a template receiving ring according to the invention can be designed universally to make a connection with the associated pivot bearing. One embodiment is that the bearing connection ring is designed as a connecting part, which is rotatably connected to a rotatable rotary bearing element of the template pivot bearing. By way of example, such a connection part can be connected to the rotatable rotary bearing element of the template pivot bearing by means of a pin connection which preferably distributes the axial connection or transmission force over the ring circumference. Another design is that the bearing connection ring has a usable in the template pivot bearing, there rotatably mounted rotary bearing element in the form of a bearing ring. For the invention it remains essential that it is for equipping the cylinder template by means of the inventive template receiving ring on the type of storage, namely in particular on a closed storage or an open or openable storage in which a bearing ring of the template receiving ring transversely to the axis of rotation the camp can be used or removed, does not arrive. In any case, according to the invention, a part of the template-receiving ring, which does not engage in a rotary bearing or does not attack it, designed as a fastening ring seat, in which the template Endringrand for transmitting inserted over the ring circumference uniformly distributed or even axial connection force inserted is.

At least one closure segment, which can be moved, for example, to be moved and preferably swiveled about an axis-parallel pivot axis, can be mounted on the fastening ring and / or the bearing connection ring. In particular, a bearing of at least one closure segment is provided on the fastening ring, preferably on the base segment, when the fastening ring and the bearing connection ring are arranged axially relative to each other by means of said spring means movable relative to each other.

Preferably, at least one named movable closure segment for opening and closing the fastening ring is pivotably connected by means of a pivot bearing to the bearing connection ring, in particular about a pivot axis parallel to the ring axis of the template receiving ring. Such a pivot bearing also provides an axially fixed connection between the receiving mounting ring and the bearing connection ring ago. A particularly advantageous design of the Schwenkan- steering is that at least one closure segment is designed as a two-armed locking lever, the one opening and removal of the template end ring opening and closing the lever arm outer segment and a when opening the lever arm outer segment in the inner region of the mounting ring pivoting lever arm inner segment, wherein the lever arm inner segment forms a stop element in the inner region, against which the template end ring edge comes to rest during insertion, whereby the lever arm outer segment is pivotable in the closing state closing the fastening ring. It is achieved that the handling of the cylinder template for setting is particularly simplified. Just by investment or edition of the stencil end ring or the stencil Endringrandes on and against the stop element, the mounting ring closes automatically. The lever arm inner segment can hold the lever arm outer segment in the closed state and thus the fastening ring, in particular without additional closing or locking means in the closed state with adjacent template Endringrand. The lever arm inner segment then forms a locking means. Instead or in addition, a locking means which can be placed from a state of unlocking into a locking state can be arranged on the round template receiving ring, said locking means holding the fastening ring closed in the locking state. Each locking means which releasably fixes at least one closure segment comes into consideration. A preferred configuration is that the locking means is arranged with at least one locking element against which the template end ring edge of a template end ring inserted into the circular template receiving ring engages to effect the locking state. The locking element can be mounted on an associated closure segment and guided axially movable against spring force, wherein it is axially displaceable against the spring force during axial clamping of the cylinder template by the abutment of the stencil Endringrandes on the locking element in a locking state causing locking position in the bearing connection ring is. The locking element may be suitably formed by a locking pin with a locking head, which is assigned to an axial locking hole in the closure segment, and with a by inserting the template Endringrandes for effecting the locking state against the spring force axially displaceable, a constituent part of the fastening ring seat forming Arretierfuß, wherein the locking head from a belonging to the unlocking free position against the spring force to Causing the lock to be moved into the lock hole to establish a lock position. The locking foot can thereby displaced and thus the locking position are produced, that the template is tensioned by train on the round template receiving ring.

A preferred embodiment is that the fastening ring, preferably in a symmetrical arrangement, has two locking levers which are movable away from one another for opening the fastening ring and towards each other for closing the fastening ring.

Preferably, a circular arc portion of the mounting ring is divided into the lever arm outer segment and the lever arm inner segment, wherein the circular arc portion forms in the closed state of the mounting ring together with the ring base segment, in particular together with another such circular arc portion, the non-jagged, uniform annular body.

In order to tune the pivoting range of the lever arm outer segment with the pivoting range of the lever arm inner segment on the one hand with regard to the passage opening adapted to the outside diameter of the template end ring edge and on the other hand with respect to an optimally acting contact of the lever arm inner segment for closing and opening the passage opening, it is advantageous in that the lever length, considered as chord length of the associated arc length, of the lever arm inner segment, in particular in the design with symmetry arrangement, is smaller than one third of the chord length of the closure segment and / or the swivel articulation of the closure element is provided in the region of the ring half having the base segment is.

The mounting ring seat is expediently formed by a circumferentially acting radial seat groove, which has a radial annular edge, which, in the axial direction, is designed for positive abutment against the radial template end ring edge, wherein the radial annular edge runs circumferentially on the template receiving ring or interrupted, ie with circumferentially distributed arranged radial projections, on the ring base segment and the or each closure segment is formed. Although the stencil end ring edge, which encloses the form fit in the fastening ring seat axially, can be released solely by axially clamping the cylinder template into the frictionally non-rotatable connection or vice versa by relaxing the cylinder template from the non-rotatable connection, it is advantageous that the fastening ring seat at least one axial fastening ring connecting element which is associated with a corresponding axial end ring connecting element of the template end ring and contributes to the rotationally fixed connection between the fastening ring and the stencil end ring by relative rotary motion blocking positive engagement. Advantageously, a formed on the ring base segment centering element, for example in the form of an axial dowel pin, with an associated, formed on the stencil end ring fitting recess is set, which defines a reproducible accurate use position of the template end ring in the mounting ring. The centering element can also be provided as a previously mentioned fastening ring connecting element.

Particularly advantageously, the rotary application device is set up in such a way that each stencil end ring is connected to the associated stencil pivot bearing by means of a stencil receiving ring according to the invention. The rotary applicator may be equipped with any chuck configured for releasably axially clamping the cylinder stencil. For example, without limitation, the cylinder template can be tensioned by means of a tensioning device separate from the template pivot bearings. The rotary application device then has a clamping device arranged on the device frame, by means of which the template pivot bearings can be released relative to one another and fixed in clamping position relative to the template rotation axis and vice versa for removing or inserting the cylinder template from the clamping position are. In the above-mentioned and still other advantageous and advantageous embodiments of the invention, subclaims are directed. Only particularly expedient and advantageous forms and possibilities of training will be described with reference to the following description of the exemplary embodiments illustrated in the schematic drawing. Each individual or detailed design described within an exemplary embodiment is described as structurally independent detailed example for other embodiments which are not or not completely described under the invention. to understand events. In particular, designs or features that have superior independent relevance are highlighted with the words "general".

Show it

1 A to 1 C in axonometric views of a template receiving ring according to the invention in the open state, in a functional intermediate state and in the closed state, each with an associated, male cylinder template;

FIG. 2 shows an axonometric view of a rotary application device according to the invention with a receiving system according to the invention having a template receiving ring; FIG. Fig. 3 in axonometric view of a stencil-receiving ring according to the invention in the closed state without a cylinder template and

4 shows in a sectional view and in section a part of a locking means of the template receiving ring in FIG. 3.

A rotary application device 5 according to the invention shown in FIG. 2 comprises a bearing device 7 which is arranged on a device frame 51 only partially shown and which has a template pivot bearing 71 lying opposite one another in a pivot bearing axis 50. The template pivot bearings 71, together with bearing bodies 52 to which they are arranged, form station or print heads. Parallel to the pivot bearing axis 50, a bearing spar 53 of the device frame 51 extends. For example, one of the two template pivot bearings 71, namely the stencil pivot bearing 710 shown on the left in FIG. 2, is equipped with a rotary drive (not shown). This drive pivot bearing can be axially fixedly mounted on the bearing spar 53, while the other stencil pivot bearing 71, which is arranged on an operating side of the rotary application device 5, can be mounted so as to be axially displaceable parallel to the pivot bearing axis 50. The bearing body 52 are on the support beam 53 vertically, ie arranged vertically adjustable on a substrate carrier 54. For example, play can be provided only a dash-dotted lines, arranged on the support beam 53 clamping device 8 to axially distract the template pivot bearing 71 for axially clamping a rotatable about the Drehlagerungsachse 50 by the template pivot bearing 71 cylinder template (circular template) 6. Any tensioning device can be provided by means of which tensile force Z can be exerted on the template ends for axial clamping of the cylinder template. The invention is not limited to a single-sided or double-sided stencil drive.

The template pivot bearing 71, which are formed in particular as a radial bearing with barrel and in the form of bearings or plain bearings, store the cylinder template 6 at their ends, the cylinder template 6 in the armed state to their coinciding with the pivot axis 50 template rotation axis 60 by means of Rotary drive at least one drive rotary bearing is rotatable. At the device position 51 of the substrate support surface forming a substrate support 54, for example in the form of a transversely to the cylinder template 6 extending and movable transport cover is arranged, which passes a dot-dash line indicated, to be provided with application substance surface substrate 59 on the cylinder template 6.

In the interior of the cylinder template 6, a doctor device 55, which is likewise indicated only by dot-dash lines, is arranged, by means of which the coating or printing substance is pressed through the rotating cylinder template 6 in order to print or coat the surface substrate 59. Printing or coating can be performed very differently in conjunction with the cylinder template 6, the application substance and the substrate, wherein a coating in the broad sense z. B. also concerns an impregnation.

The rotary application device 5 is put into operation, that the cylinder template 6 is axially tensioned and lowered for application operation by means of the bearing body 52 and brought against the surface substrate 9.

As can be seen from FIG. 2, the cylinder template 6 is received in a stencil receiving ring 1 according to the invention for storage by means of the template pivot bearings 71 at each end. The template-receiving ring 1 is an essential means for each of the stencil end to be stored with the associated stencil Pivot bearing 71 to connect. At each end, the cylinder stencil 6 is provided with a stencil end ring 61 having a stencil end ring edge 61 1 to be detachably connected to the stencil receiving ring 1. It is important that this connection is easy to handle and causes an optimal circumferential distribution of axial compressive force, which acts on the stencil end ring edge 61 1 when clamping the cylinder template 6.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of a template receiving ring 1 according to the invention and the functions and effects achieved therewith are shown in detail in FIGS. 1A to 1C.

The template-receiving ring 1 is a component which is formed by two concentric, rotationally fixed together, axially offset and fixedly spaced annular body. One of the annular bodies forms a closed circular bearing connection ring 2 for connection to an associated associated template pivot bearing 71. In the embodiment of FIGS. 1 A to 1 C, the bearing connection ring 2 is a connection part 21 having a centering edge 22. Generally, such a connection ring on the circumference preferably uniformly distributed connecting elements. In the exemplary embodiment, connecting elements 21 1 are provided on the connecting part 21 in the form of pins or screws arranged at a circumferential distance of 120 °. By means of such a connection, the bearing connection ring 2 is non-positively flanged to a rotatable part, for example, an inner bearing ring of the template pivot bearing 71 flanged. The second ring body is designed as a special fastening ring 3. This is a receiving fastener 30, with the stencil end ring edge 61 1 of the stencil end ring 61 in a special manner releasably connectable to the stencil receiving ring 1.

In the exemplary embodiment, the receiving fastening ring 3 has a bottom-side annular base segment 31, which is formed integrally with the bearing connection ring 2. The receiving mounting ring 3 has two further, mirror-image arranged and trained ring parts, which are formed by pivotally movable closure segments 32. Each closure segment 32 is hinged to the bearing connection ring 2 by means of a pivot bearing 37, as can be seen in FIG. 3, about a pivot axis 320 parallel to the central ring axis 10 of the template receiving ring 1. In the closed state, the receiving fastening ring 3 is defined by a closed ring, which consists of the ring base segment 31 and the two closure segments 32. sammensetzt, as shown in Fig. 1 C is shown. The (closed) receiving-mounting ring 3 and the bearing-connection ring 2 have generally inner diameter and outer diameter and circular ring shapes that correspond to each other or are substantially equal, with the parts of the receiving mounting ring 3 over the entire ring inner circumference with a special graded radial inner groove, namely a seat groove 351 are formed, which forms a mounting ring seat 35. As can be seen from FIGS. 1 A to 1 C, the fastening ring seat 35 generally has a circumferential radial ring edge 352 on its side facing away from the bearing connection ring 2. The circumferential radial seat groove 351 is generally incorporated on the inner circumference of the receiving mounting ring 3 in the ring base segment 31 and correspondingly in the closure segments 32.

In the exemplary embodiment, the radial ring edge 352 and also the radial seat groove 351 are provided without interruption for the purpose of bordering the template end ring edge 61 1. The radial annular edge or the seat groove can also be provided in such a circumferential manner that they have distributed over the entire circumference arranged radial projections or portions or corresponding recesses or interruptions. In any case, the seat groove is set up such that it engages the template end ring edge over the entire circumference of the ring in a form-fitting manner.

It is advantageous if, in general, each closure segment 32, as illustrated, for example, in FIGS. 1A to 1C, is provided on the side facing the bearing connection ring 2 with a collar edge 323 which axially overlaps the bearing connection ring 2 peripherally, such that the stencil accommodating ring 1 is sealed circumferentially outwardly when the accommodating fastening ring 3 is closed.

In the exemplary embodiment according to FIGS. 1 A to 1 C, each closure segment 32 is subdivided into a lever arm outer segment 321 and a lever arm inner segment 322 with the pivot axis 320 pivoting it. In the exemplary embodiment, the arc length or a corresponding chord length of the lever arm inner segment 322 is less than one third of the arc length or a corresponding chord length of the closure segment 32. The pivot axes 320 extend in the upper region of the lower circular half of the template segment having the ring base segment 31. Recording rings 1. In particular, with this arrangement, the two symmetrically arranged mirror-symmetrical closure segments 32 can be in an open state of the receiving mounting ring 3 with a circumferential, the ring base segment 31 gegenüberliegen- bring the free passage opening 33. The passage opening is tuned to the circle diameter of the stencil Endringrands 61 1, such that the stencil end ring edge 61 1 circumferentially, in particular as shown in Fig. 1 A to 1 C, bring vertically from above into the interior of the receiving mounting ring 3 leaves. As can be seen from FIGS. 1A to 1C, the handling for setting-up is generally such that the ring axis 10 of the template receiving ring 1 and the template rotation axis 60 of the cylinder template 6 are in a common, in particular vertical plane and these axes are parallel run. In general, at least one or more closure segments can each be formed by a one-armed lever, so that then eliminates a lever arm inner segment in execution with Schwenkanlenkung.

While the lever arm outer segments 321 pivoting outwardly for opening on the template receiving ring 1 form the through opening 33, the lever arm inner segments 322 inside the receiving fastening ring 3 form radial abutment elements on which the template end rim edge 61 1 is inserted when inserting the template. nenendrings 61 comes to rest, as shown in Fig. 1 B. The cylinder template 6 resting on the lever arm inner segments 322 with the stencil end ring 61 or the stencil end ring edge 61 1 closes the receiving fastening ring 3 completely. In general, the inner diameter of the receiving mounting ring 3 in adaptation to the outer diameter of the stencil Endringrands 61 1 be dimensioned so that the receiving mounting ring 3 is automatically closed when inserted and then tensioned cylinder template 6, wherein the lever arm inner segments 322 form a locking means 37. Instead or in addition, any other locking means can be provided which holds the fastening ring 3 releasably closed. A particular design will be described below with reference to FIGS. 3 and 4. An advantageous general design is, as in the example in particular from FIGS. 1 A to 1 C can be seen that the outer diameter of the two annular body of the template receiving ring 1 are formed with at least substantially the same or corresponding outer diameters such that one in the Outer shape uniform overall body of the template receiving ring 1 receives. In conjunction therewith and also generally, as can be seen in particular from FIGS. 1 c and 3, the closure segments 32 and the ring base segment 31 form in the closed position. stood of the receiving mounting ring 3 a closed, projection-free outer peripheral surface corresponding to the projection-free outer circumferential surface of the bearing connection ring 2. As already described, the cylinder template 6 connected at each end to the stencil receiving ring 1, as shown in Fig. 1C, when the bearing terminal ring 2 is connected to the associated stencil pivot bearing 71, 71 0, by means of Tensile force Z exerted a clamping device in the axial direction, so that the stencil end ring edge 61 1, which is formed in the embodiment by a non-interrupting full ring, over the entire circumference frictionally against the also closed in the ring radial ring edge 352 or against a same effect, with interruptions formed radial annular edge of the receiving fastener 30 is pressed. Ring sections of an interruption-having ring edge can be adapted to corresponding ring sections of an interruptions having stencil Endringrandes. In any case, results in a rotationally fixed connection between the cylinder template 6 and the template-receiving ring 1 with a uniform distribution of force over the entire ring circumference.

As can be seen from FIGS. 1 A and 1 B, an axial dowel pin 360 is formed on the bottom of the ring base segment 31, to which a corresponding fitting recess 612 for positive engagement is assigned at an inner step edge 610 of the template end ring edge 61 1. The cylinder template 6 is set by this connection in a well-defined rotational and reference position. The dowel pin 360 may also form an axial fastening ring connecting element 36 which may be mounted in the same shape at other circumferential locations of the receiving mounting ring 3 to provide a rotationally fixed position by positive engagement between the cylinder template 6 and the template receiving ring 1.

In Fig. 3, the template-receiving ring 1, as it is provided in the embodiment of FIG. 1 A to 1 C, shown in rear view, that is in the view of a cylinder template 6 facing side. There are pivot bearing 38 can be seen, which produce the Schwenkanlenkung the closure segments 32 about the pivot axes 320 on the bearing connection ring 2. The pivot bearings 38 may, as shown, be formed by means of a hinge screw. FIG. 3 additionally shows a locking means 9 arranged on the circular-template receiving ring 1, which can be set from a release state into a locking state and reversibly. The locking means 9 comprises a pair of locking elements 90, which are each arranged in mirror image between an associated lever arm outer segment 321 and the bearing connection ring 2 in the upper third of the template receiving ring 1 corresponding to the symmetry arrangement of the closure segments 32, in Fig. 3 and 4 is the locking - means 9 in the unlocked state. In this state, in the closed template-receiving ring 1, the stencil end ring edge 61 1, a cylinder template 6, as shown in Fig. 1 C be used, but without the cylinder template 6 is in the axially tensioned state. On the basis of the detailed representation in Fig. 4 arrangement, training and function of the locking member 90 are described.

The locking element 90 is an axially aligned guide pin with a locking shaft 91 axially spaced a locking head 92 and a Arretierfuß 93. The guide pin is axially reciprocally mounted in an axial through-hole in the wall of the Hebelarm- outer segment 321, wherein the locking shaft 91 is passed through a pressure-claimable locking spring 94, which between the locking head 92 and one on the lever arm outer segment 321 supporting recessed ring edge is trapped in the through hole. The Arretierfuß 93 is formed in the form of a plate-like tab, which forms an axially movable by means of the guide pin part of the radial annular edge 352. The arresting foot 93 is arranged in its range of motion for partial and complete engagement with an associated mating locking recess 96 in the radial annular rim 352. In the unlocking state shown in FIG. 4, in which the locking spring 94 is relaxed, the locking foot 93 is only partially located in the locking recess 96, whereby it bears an attachment projecting axially at the radial ring edge 352 of the fastening ring seat 35. or stop element forms. In this state, the locking head 92 is free of locking in a countersunk hole 97, which is introduced into the outside end face of the bearing connection ring 2. It is thereby achieved that the lever arm outer segment 321 can be pivoted from the illustrated closed state into the open state or conversely from this into the closed state.

The locking state can be produced in that, in the closed state of the fastening ring 3, the locking foot 93 is completely displaced against the pressure force of the locking spring 94 into the locking recess 96. As a result, the locking head 92 takes shape conclusively in an inserted into the wall of the bearing connection ring 2 locking hole 95 to which the contrast widened counterbore 97 connects, so that the lever arm outer segment 321 is in the locked position, in which it is locked against swinging out of its closed position.

The displacement of the locking foot 93 out of the projection pitch into the locking recess 96 is effected and controlled by means of a template end rim edge 61 1 inserted into the fastening ring seat 35. The attachment ring seat 35, namely, in the exemplary embodiment, the stepped seat groove 351 delimited by the radial ring edge 352 and the groove edge 353, is designed with an axial clearance that is so great that the template end ring edge 61 1 opens in the template receiving ring 1 and in the state of the annular ring edge 352 slightly protruding Arretierfußes 93 can be freely inserted into the mounting ring seat 35 and the closure segments 32 are fully closable. As described, a cylinder template 6 is tensioned by the fact that the template receiving ring 1 is displaced in the axial direction Z by means of a clamping device 8. As a result, the template end ring edge 61 1 urges the arresting foot 93 into the arresting recess 96 with the result that the closed state of the closure segments 32 is locked when the cylinder template 6 is tensioned and vice versa is unlocked when the cylinder template is relaxed.

Claims

claims

Circular template receiving ring (1) adapted for connecting a cylinder template (6), by means of the substance to a surface of a substrate carrier (54) supported surface substrate (9) is transferable, with a on a device frame (51) arranged pivot bearing device (7) for pivotal mounting the cylinder template (6) about a template axis of rotation (60), wherein the round template receiving ring (1) is formed by a bearing connection ring (2) for its pivotal mounting with a template pivot bearing (71) of the pivot bearing device (7) is connectable, and by a receiving fastener (30) for releasably rotatably connected to a template Endringrand (611) of a cylinder template (6) mounted stencil end ring (61), wherein the receiving fastener (30) for axial clamping of the cylinder template (6) can be acted upon with axial force, characterized in that the circular template receiving ring (1) by two concentric, drehf est associated with each other, axially offset annular body is formed, wherein the one annular body, the receiving fastening means (30) in the form of an openable mounting ring (3), in the open state with a through opening (33) open ring receptacle for free insertion and removal forms the stencil Endringrandes (611) and in the closed state, the through opening (33) closing, thereby closed ring receptacle with a formed over the entire ring circumference fastening ring seat (35) which forms the template end ring edge (611) for rotationally fixed attachment and wherein the other annular body forms the bearing connection ring (2), wherein the fastening ring (3) is formed by a ring base segment (31) and at least one closure segment (32) which is movable relative to the ring base segment and which has an opening and closing part for producing the open ring receptacle or the closed ring receptacle forms.

Circular template receiving ring according to claim 1, characterized in that the fastening ring seat (35) by a radial annular edge (352), closed circumferentially formed.

3. round template receiving ring according to claim 1, characterized in that the fixing ring seat (35) by a radial annular edge (352), with interruptions circumferentially formed.

4. round template receiving ring according to one of claims 1 to 3, characterized in that the ring base segment (31) and the bearing connection ring (2) are integrally formed.

5. round template receiving ring according to one of claims 1 to 4, d a - characterized in that at least one said closure segment (32) for opening and closing the fastening ring (3) by means of a pivot bearing (38) is pivotally articulated.

6. round template receiving ring according to claim 5, characterized in that at least one said closure segment (32) is designed as a two-armed locking lever, the one the mounting ring (3) for inserting and removing the stencil end ring (61) opening and closing lever arm outer segment (321) and a lever arm inner segment (322) which pivots into the inner region of the fastening ring (3) when the lever arm outer segment (321) is opened, wherein the lever arm

Inner segment (322) in the inner region forms a stop element against which the template end ring edge (611) comes to rest during insertion, whereby the lever arm outer segment (321) in the fastening ring (3) closing the closed state is pivotable.

7. round template receiving ring according to claim 6, characterized in that the lever arm inner segment (322) holds the lever arm outer segment (321) in the closed state with adjacent template Endringrand (611).

8. round template receiving ring according to claim 6 or 7, dadu rch geken nzeichnet that the mounting ring (3) has two mentioned locking lever whose Hebelarm outer segments (321) for opening the mounting ring (3) away from each other and for closing the fastening rings (3) are movable towards each other.

9. round template receiving ring according to one of claims 1 to 8, characterized in that the fastening ring seat (35) has a radial seat groove (351) which is formed for the bordering of the template Endringrandes (611).

10. Round template receiving ring according to one of claims 1 to 9, characterized in that the fastening ring seat (35) has at least one axial fastening ring connecting element (36) which is associated with a corresponding end ring connecting element of the stencil end ring (61) and for establishing a rotationally fixed connection between the fastening ring (3) and the stencil end ring (61) is arranged by positive fit.

Round template receiving ring according to claim 10, characterized gekenn¬ characterizes that the axial mounting ring connector (36) defines a reproducible deployment position of the stencil end ring (61) in the mounting ring (3).

12. Round template receiving ring according to one of claims 1 to 11, characterized in that on the round template receiving ring (1) from a unlocking state in a locking state settable locking means (9) is arranged, which closes the fastening ring (3) in the locked state holds.

13. round template receiving ring according to claim 12, characterized in that the locking means (9) is arranged with at least one locking element (90) to which the stencil end ring edge (611) of a stencil end ring (61) inserted into the round template receiving ring (1) ) comes to rest for effecting the locking state.

14. round template receiving ring according to claim 13, characterized in that the locking element (90) mounted on an associated closure segment (32) and axially movable against spring force, wherein the locking element (90) during the axial clamping of the cylinder template (6) through the Placement of the template end ring edge (611) on the locking element (90) in a locking state causing the locking closing ring (2) arresting engaging position against the spring force is axially displaceable.

15. Round template receiving ring according to claim 14, characterized in that the locking element (90) is formed by a locking pin with a locking head (92), which is associated with an axial locking hole (95) in the closure segment (32), and with a locking foot (93) forming an integral part of the fastening ring seat (35) by abutment of the template end ring edge (611) to effect the locking state against the spring force, the locking head (92) being in a free position relative to the unlocking state Spring force for effecting the lock in the locking hole (93) is hineinbewegbar for establishing a locking position.

16. round template receiving ring according to one of claims 1 to 15, characterized in that the bearing connection ring (2) is designed as a connecting part (21) which is rotatably connected to a rotatable rotary bearing element of the template pivot bearing (71).

17. Round template receiving ring according to one of claims 1 to 16, characterized in that the bearing connection ring (2) has a rotatable, insertable into the template pivot bearing rotary bearing element.

A rotary applicator (5) comprising at least one cylinder template (6) having first and second stencil end rings (61) attached to the axial ends of the cylinder stencil (6), a device frame (51) on which a lower one the cylinder template (6) extending substrate carrier (54) is arranged, and a pivot bearing device (7) with the axial ends of the cylinder template (6) associated template pivot bearings

(71) which are arranged on the device frame (51) and with which the stencil end rings (61) for pivotal mounting of the cylinder template (6) are connected, wherein at least one stencil end ring (61) by means of a round template receiving ring (1) according to one of claims 1 to 14 with the associated template pivot bearing (71) of the pivot bearing device (7) is connected. Rotary application device according to claim 18, characterized in that each template end ring (61) is connected to the associated template pivot bearing (71) of the pivot bearing device (7) by means of a circular template receiving ring (1).

Rotary application device according to claim 18 or 19, characterized in that the rotation-applying device (5) comprises a clamping device (8) which is adapted for the releasable axial clamping of the cylinder template (6).