DE2349761A1 - PRINTING DEVICE - Google Patents

Description

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PATENT Attorney DIPL-ING. R. MDLLER-BORNER PATENTANWALT DIPL-ING. HANS-H. WEY BERLI N-DAHLEM 33. POD B I ELS KIALLEE «8 8 MONCH EN 22- Wl DENM AY ER STRASSE TEL. 03Π 762907 TELEGR. PROPlNDUS TELEX 0184057 TEL 0811 225585. TELEGR. PROPINDUS. TELEX 0524244

26 046/7

THOMAS HEMY CLARK Blaydon-on-Iyne, County Durham, England

Printing equipment

The invention relates to printing apparatus, and more particularly relates to apparatus for reproducing of information that has been impressed on a printing form or printing template that has the 2-shape of a label.

In some administrations, e.g. iron clinics, however also with certain other types of gear it often arises the need to produce a certain number of labels that all contain the same information wear. Here it is possible that the required view. 1 the use of complex printing directions for labels does not justify that the "required number, however is too large to be copied by hand, e.g. to be made with the help of a typewriter.

Devices for printing labels ©!:, Usually have a printing drum which, using movable letters, contains the information to be reproduced.

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functions is provided, and with a cylindrical pressure roller works together to transport the labels to be printed and thus the desired productions to manufacture. Of course, changing the information to be reproduced can turn out to be a turn out to be complicated and time-consuming work, and the information previously used cannot be retained, to be ready to use again at a later time.

For example, making labels using an embossed flat printing plate has emerged in the art the mailing machines and the manufacture of credit cards well established; here the prints are either through a stamp movement or generated by placing a pressure roller over the stationary flat pressure plate lets run away.

In none of these cases will the au Labels automatically passed through the device by the actual printing device, but one requires a storage facility as a supplement, which is normally the case is not supplied with the printing device «

By means of the invention, a printing device for reproducing vc-n information, - which has been impressed in a chain-shaped, flexible printing form, has been created, for which a swivel-mounted Uruok head with a 2? curved support surface, furthermore a hall device suia detachable fastening of the Bruckfr Isrartj that they see the gelrrfemroes. Adjusts support surface _; as well as a pressure roller; the Ie Quers ctm ± tt has a Hm Irxreren serving section of greater-sra Iterorüieases /, whose circumferential length in weESütlieli &L; : .. :: e ^ 5iii _L ; , -n the £ 1nrfe3fläche corresponds to § becomes di?,; .-; c · ' ^: "ί1ζ ^ £ 2- ^z :: s? & h.t _z becomes! ir the larger Burci knife £ Äifweissn.der-, serving to demokeii Circumferential section in licliteng on the embossed

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Surface of the printing form "moved to pivot the printhead and to roll while simultaneously applying pressure on the printing form, so that it is during operation of the device it is possible to have a set of labels to be printed together with a ribbon between the circumferentials Roller and the swiveling printhead, so that the labels one after the other with the in the Information embossed on the printing form can be printed; furthermore, the device has a device for maintaining of a distance, which ensures when using the device that the larger diameter Part of the pressure roller only causes a reproduction of the information impressed on the outside of the printing form.

This device for maintaining a distance can include two spacers, which are expediently used as resilient brackets are formed and arranged between the pressure roller and the print head so that they are with two outer sections of a rigid material, separated by a transverse distance, work together on the den larger diameter part of the roller is arranged; By working the spacers with them outer portions of the rigid material is the radial movement of the printing part of the pressure roller limited in sighting to the printhead, and this movement is played out in the operation of the deed from the fact that the part used for printing is only an imprint of the information impressed on the outside of the printing form generated.

Alternatively, the spacers can have two outer sections of the pressure roller, one of which each is arranged on each side of the part of the pressure roller used for printing, and in this ball they have Said sections of the rigid material have a larger diameter than that having the enlarged diameter Part of the pressure roller, and they can cooperate with the curved support surface of the printhead,

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about the radial movement of the part used for printing to limit the pressure roller towards the print head; in this case the movement takes place again in such a way that there is a guarantee that when the Yorrichtung is in operation the part of the pressure roller which is used for printing only an imprint of the information impressed on the outside of the printing form generated.

The holding device preferably includes two Parts of the lip, one of which extends along the leading edge and the other along the trailing edge of the curved Support surface extends; these lip parts are elastically biased against the curved support surface, but leave they stand out from it so that it is possible to create a printing form between the support surface and the lip parts, to arrange and remove them again.

The subject matter of the invention and advantageous further details thereof are given below with reference to particular preferred embodiments explained in more detail, which are shown schematically in the drawing. It shows;

Fig. 1 is a perspective view of an embodiment of a printing device in which a part of a Side wall is only indicated with dashed lines to make further details recognizable; and

Figures 2 and 5 each show a side view of the printhead it the device of FIG. 1, in which the holding device is closed or released.

According to the drawing, the device has a base plate 2 and two opposing, vertically arranged side walls M- , and in Fig. 1 part of the front side wall is only indicated with dashed lines to make further components of the device recognizable. The device includes a print head, denoted as a whole by 6, with a block 8 which has a curved support surface 10. The print head 6 is

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pivotally mounted on an axis 12, which is between extends the side walls 4 and is received by openings formed in the side walls which are so dimensioned are that the printhead, together with the axis, has a slight, im can perform substantial vertical movement.

According to FIG. 1, a generally designated 14, inverted U-shaped saddle assembly is present, which extends around three sides of the block 8 and has a component 16 at each of its ends. On the two face ends Components 16 are two elongated lip parts and 20 attached so that they extend between the end-face components, namely the one along the Front edge and the other along the rear edge of the block 8. There are also two coil springs 22, one of which is arranged at each end of the print head 6 is; these coil springs each extend over a bushing 24 arranged on the axis 12 to with the opposing legs of the associated end-face component 16 together and so the To bias lip parts 18 and 20 against the curved support surface 10 of the block 8, as shown in Figs is. In this rest position of the print head 6 is a free space between the top of the block 8 and the Saddle assembly 14 present.

According to Fig. 3, the lip parts 18 and 20 can be lifted from the curved support surface 10 so that in the device allows a printing forme 26 to be introduced into which, for example by means of a typewriter, the Information has been imprinted. The printing form consists of a thin flexible material, e.g. a Metal foil or a flat material made of plastic; the lip portions 18 and 20 work with the adjacent edges the printing form together in order to bring it to bear on the curved support surface 10. So that the lip parts 18 and 20 is a cam assembly

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present, to which a rotatable shaft 28 belongs, which extends between the side walls 4 of the device, and at one end of which a handle 30 is attached. With the Shaft 28 are two extension pieces 32 rotatably connected, the according to FIG. 1 by two transverse rods 34 and 36 are connected. The front-side components 16 of the oil pad assembly 14 each have two rounded edges on their upper edges Recesses 38 and 40.

The parts mentioned are arranged in such a way that, according to i'ig, 2, when the handle 30 is initially depressed, the Rod 34 engages in recess 38, and that too 2, a further depression of the handle 30 causes the print head 6 on the axis 12 in a clockwise direction is pivoted. When the handle 30 is further depressed, the rod 36 then comes into engagement with the Recesses 40, so that a further rotation of the print head 6 is brought about, because of the selected distance between the rod 36 and the shaft 28 from downward movement of the saddle assembly 14 towards the Block 8 is accompanied against the biasing force of the coil springs. In the case of the I'ig. 3 release position shown, which is achieved by turning the handle 30 by 90 ° with respect to the rest position according to FIG. 2 is located the block 8 in a substantially vertical position, and the saddle assembly 14 is down to the stop been moved so that between the curved support surface 10 of the block 8 and the Lipjentteile 18, 20 a free Space for introducing the printing forme 26 is present.

When the handle 30 is released, the coil springs guide 22 returns the saddle assembly 14 to its rest position according to FIG. The print head 6 is towards his Rest position according to FIGS. 1 and 2 elastically biased by a helical spring 42 which is located between one of the Side walls 4 and one end of a rigid lever 44 extends, the other end of which is articulated by a pin 46 is connected to the print head 6. That of the coil spring

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adjacent rear end of the lever 44 has a slot 48, in which a stationary pin 50 engages, which precisely determines the rest position of the print head 6, when it is in engagement with a part 42 of the slot 48 which forms a detent.

Underneath the print head 6, a roller 54, connected to a shaft 56 in a rotationally fixed manner, is rotatably mounted, which with a portion having a larger diameter is provided, the circumferential length of which is substantially that corresponds to the printing forme 26. The section 58 of the pressure roller 54 has a centrally arranged, elastic Pressure zone 60, and at each end of this pressure zone there is an end portion 62, which consists of a rigid Material, e.g. nylon.

If the pressure roller 54 according to FIG. 1 against the Rotated clockwise, the leading edge of the section 58 of the Andruckwaise 54 detects the leading edge of the curved Support surface 10 of the print head 6, and a further rotation of the Andruckwaise leads to the fact that the print head from its resting position according to Pig. 1 against the pretensioning force of the helical spring. 42 clockwise on axis 12 is rotated so that the portion 58 of the pressure roller rolls on the curved support surface 10 over its entire circumferential length, in order to be similar to that of a mangle to exert pressure.

If the print head 6 has performed a complete pivoting movement, the lever 44 has moved so that the pin 50 a position near the rear end of the Slot 48 occupies. As soon as the larger diameter part 58 of the Anaruckwalze 5 ^ out of contact comes with the printhead 6, leads the coil spring. 42 the printhead back to its rest position according to Pig. 1 ziarück, in which the pin 50 into the recess from recess 52 intervenes to prevent the printhead from swinging back and forth when it returns to its rest position impede.

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Mowing the rear end of the device there is a supply roll in which self-adhesive labels 64 distributed at longitudinal intervals are arranged on a carrier strip 66. The strip 66 is fed with the aid of deflection rollers 68 and? Oa in such a way that it passes between the printing forme 26 placed in the print head 6 and the pressure roller 54. Since there is a small longitudinal distance between adjacent labels 64 on the support strip 66, the support strip tends to bend in the area of such a gap. D _e r distance between the two deflection rollers 68 and 70a is chosen so that it corresponds to the distances between adjacent gaps between the labels, so that the deflection rollers practically as locking members come into action, to each retain a label · between the two guide rollers . If a label is in the appropriate position between the "two deflection rollers, another label takes the correct position in which it can be printed.

A carbon ribbon 79 that comes from a supply roll

is withdrawn, runs over the .Saddle assembly 14 and between the printing forme 26 and. the labels 64 through to be rewound into a trowel 76.

When the device is in operation, one label at a time 64 between the outer print fora £ 6 on the print head 6 and the pressure roller 54 arranged, which is due to this '! haste acting bridge is due, and those in the Information embossed in printing forme 26 is provided with the aid of the outer color ribbon 70 is printed on the supplied label. With each revolution of the pressure roller 54, a Label 64 is printed, and it is not shown ■ ^ AtsoiieneinrichtUiig available, which serves to the carbon ribbon 70 at, every revolution of the pressure roller 54 to a small distance to be transported

Of course, it is desirable that only the information embossed in the printing forme 26 be printed,

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d.li. any soiling of the background of the labels 64 to prevent. According to the invention, two strips 78 of steel are provided for this purpose, one of which is on the Print head 6 one at each end of the print head like this is arranged that it rests against the curved support surface 10 of the block 8 when the block is in his Use position is located. Each of the strips 78 extends between the two legs of the associated front-side component 16 of the saddle assembly 14, and the front-side Components also serve as guides for the carbon ink ribbon 70 running over the print head 6 · The strips 78 are arranged so that they each with one of the unyielding sections 62 of the pressure roller 54 work together, and its thickness is chosen so that when the pressure roller is rotated, in which the sections 62 come to rest come the curved portions of the strips 78 leading to the Zone 60 serving printing assumes such a position that only the information impressed in the printing forme 26 to the outside are reproduced, and that a pressure contact zv / ischen the carbon ribbon 70 and the not to be printed filing of the printing forme 26 is prevented.

In a modified embodiment of the device, the required distance between the elastic Pressure zone 60 of the pressure roller 54 and the curved support surface 10 of the print head 6 maintained in that the resilient strips 78 are omitted, and that for Compensate for this the diameter of the rigid sections 62 of the pressure roller by a corresponding "" amount is enlarged so that these sections then work together with the longitudinal edges of the printing forme 26 ^ around the to determine the radial position of the pressure zone 60 exactly.

As mentioned at the beginning, the print head 6 is mounted in such a way that it can yield to a small extent, to enable printing of labels 64 of different thicknesses; you could also use the carbon ribbon Replace 70 with a fabric ribbon soaked in printing ink.

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The side walls 4 can be seen in FIG. 1 Way provided with longitudinal slits, which it after removal of the strip 66 carrying the labels 64 enable larger sheets to be printed.

Thus, the invention makes it possible by way of Eotatxonsdrucks using a flexible, embossed Printing form To print one set of labels at a time, and because of the described form of the pressure roller, this is Printing or label started at a predetermined point and ended at a predetermined point; the background The labels are not soiled, and the pressure rollers and touch each other during the printing process the printing form only along a line * This is in contrast to that which leads to less satisfactory results Surface contact that occurs during printing processes in which stamp imprints are created o

The device can be operated automatically, e.g. by means of an electric motor, or by hand. Further the device can be provided with an automatic device which enables a selected number of To print labels after a dialing device has been set accordingly *

Claims :

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Claims (6)

A K S P E ΰ CHE 1.) Printing device for reproducing in one to stamped on labels "certain printing form Information, characterized in that a pivotably mounted print head (6) with a curved Support surface (10) is available * that holding devices (18, 20) are present, which allow the printing forme (26) on the curved support surface and in contact to be releasably attached to her that a pressure roller (54-) is present, which in cross section a sum printing serving portion (58) with an enlarged diameter, the circumferential length of which is substantially the circumferential length corresponds to the support surface of the printhead that a rotation of the pressure roller causes you the larger Diameter having section is moved in the direction of the embossed surface of the printing form to the To pivot the printhead so that the printing form, while applying pressure, performs a rolling movement so that it is possible when using the device, a set of labels to be printed (64) together with a Druckbzw. Passing the ink ribbon (70) between the rotating pressure roller and the oscillating printhead, so that the information present on the printing form are successively printed on gedes label, and that devices (78) sum maintenance of a distance are present, which ensure *) that when using the device, the one having the enlarged diameter Section of the pressure roller is a reproduction only of the in the printing form causes information embossed to the outside . 2. Printing device according to claim 1, characterized in that the devices for A09815 / 0372 ■■ 12 - Keeping a distance two spacers (78) frozen between the pressure roller (54-) and the printhead (6) are arranged and with two separated by a distance, made of a rigid material outer zones (62) of the enlarged diameter section (58) of the pressure roller cooperate that this Cooperation of the outer zones with the spacers causes the radial movement of the i'eils used for printing Pressure roller limited in the direction of the print head, and that this movement takes place in such a way that when the device is used, the section used for printing only Reproduction of the information impressed on the outside of the printing form. 3. Printing device according to claim 2, characterized in that g e that the spacers include two resilient strips (78), which by a transverse distance separated and attached to the front ends of the curved support surface (10) of the print head (6) are that they extend along the support surface. 4 »Printing device according to claim 1, characterized in that the ^ devices for Keeping a distance between two outer zones of the pressure roller (5 ^ ·) j of which one belongs to each end face Ends dss serving for printing section (5S) of the pressure roller are arranged that these zones from one rigid material consists of a larger "diameter have than those for the enlarged diameter Abscimitt of the pressure roller that it ax the curved Support surface (10) of the print head (6) work together to the radial movement öes for printing :, serving Section of the pressure roller 121 Hiciitung on the print head au limit, and that sicix plays this movement in such a way that When using the device, there is a guarantee that the section used for printing will only reproduce that the information impressed on the outside of the artwork (26) causes " 409815/0372 - ΛΌ - 5. Printing device according to one of claims 1 to 4-, characterized in that two lip parts (18, 20) belong to the holding devices, one of which one along the front edge and the other along the rear edge of the curved support surface (10) of the Printhead (6) extends that the lip parts are resiliently biased into contact with the support surface, and that however, let the lip parts move away from the support surface in order to introduce the artwork (26) into the space to enable between the support surface and the lip parts or the removal of the printing form. 6. Printing device according to claim 5 »characterized in that the print head (6) has a Has pressure block (8) on which the support surface (10) is formed that a saddle assembly on the pressure block (14) is arranged, which carries the lip parts (18, 20), and that the saddle assembly opposite the block between a rest position in which the lip parts rest elastically pretensioned against the support surface, and another position is movable in which the lip parts separated by a distance from the support surface are. 409815/0372