DE6606302U - DEVICE FOR PRINTING IDENTIFICATION PLATES ON BAGS, PACKAGES, ENVELOPES OR. DGL. - Google Patents

Description

Potrnfjnwnlt, j

Dipl.-fro. V, '*. Si-r J.-thirch "- ^: ·

7 Stuttgart N, Menzolstrasse 40

A 29 586

Λ 31 450 - Br

Machines Automated Ltd.
York House

Middlesborough, Yorkshire
(Great Britain)

Device for printing marks on bags, packs, envelopes or the like. - ~

The invention relates to a device for printing of labels on bags, packs, envelopes etc.

The use of printing ink ribbons is known in the printing industry. One type of ribbon used in this technique consists of cellophane tape coated with glue or ink that is used to print the required characters. According to the invention, however, it is also possible to use any type of ink ribbon. The characters are printed when this tape comes between the material on which a character is to be printed and a print head which presses the tape against this material. The term "ribbon" is intended to include the following, all derarti _o s bands.

The above-mentioned technique can be used for printing Characters such as code number, price, quality and grade

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Bags, envelopes, signs, labels, and similar suitable items can be used. To manufacture the Imprint, these objects pass individually one after the other through the device according to the invention.

Such devices are known. However, you need a back and forth moving one to print the characters Pressure stamp, the linear movement of which must first be derived from a rotary movement »

This conversion of the rotary motion into a rectilinear motion is in many respects of Machte.il, so that it is The invention has set the task of specifying a device which in particular does not have this disadvantage owns.

For such a device, the invention now consists in that one, the type stamp, the types and the electrical Print head comprising printing magnets, a ribbon and Abv / i ckelvor direction, a step switching device for indexing the ribbon and in front of the type stamp a ribbon guide, arranged in such a way in operative connection with an electrical control circuit, <~ that after each actuation of the print head triggered by the print magnet one automatically by the electrical Stepping solenoid triggered actuation of the ribbon feed is feasible.

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According to an advantageous embodiment of the inventive The device has a take-up and an unwinding reel between which to take up the ink ribbon the ribbon has passed in front of the printhead.

Other configurations also include ribbon guide rails, which are arranged on both sides of the longitudinal axis of the plunger and that the pressure or Type stamp is attached to the movable core of the printing magnet. To the advantageous training also includes a tension spring, which is provided between the fixed housing part and the plunger and which returns it to its rest position after the pressure movement. Furthermore, the operating lever is the overrunning clutch, which leads to the stepping device attached to the moving core of the ribbon transport magnet. Also the core of this actuating magnet is by a tension spring, which is also arranged between the fixed housing and the core is returned to its rest position after actuation.

According to a further embodiment of the device according to the invention, the gate is sometimes an overrunning clutch used so that after the advance of the ribbon, the transport magnetic core freely return to its rest position can.

The actuation magnet used for cycle control electrical fc control circuit consists of one A further arrangement according to the invention from a transistorized Memory circuit connected to the actuating magnets and through a switch of the objects to be printed on that are passing by. The memory circuit is, according to a favorable selection, formed by an RG circle, whose Delay time the time interval between the pressure and feed solenoid actuation determined.

According to a further advantageous embodiment, the print head finally has a heating element which is used for Heating of the ribbon is provided in front of the type stamp.

The above-cited features of the invention are shown collectively a number of advantages through which it is possible on the one hand to use any earbands * and on the other hand, a straight Evpen stamp movement to which does not result from the conversion from a rotary movement.

The invention is described in more detail below with reference to an exemplary embodiment illustrated by drawings. Show it:

Pig. 1 is a side elevation of the device according to the invention

Pig. 2 an elevation drawing and

Pig. 3 is a circuit diagram of the electrical control device.

Like the 5 ¹ Xg. 1 and 2 can be seen, the machine has a metal frame made of an inverted L-profile, on which a vertical side plate and an upper horizontal plate 4 is attached. At the lower edge of the side plate 2, two downwardly hanging angles 5 are attached, to each of which a guide rail 6 for guiding the ink ribbon is attached. Approximately in the middle of the side plate 2 there is a horizontal holder for an electromagnet, which is attached to the vertical wall and over the ribbon guides 6.

At one end of the side plate 2 there is a horizontal supply reel axis at the level of the magnet holder 8 10. At the opposite end of the side wall 2 is the axis 12 of the take-up reel. Both Axles protrude horizontally from the vertical side wall 2 and each carry a freely rotating Hagazin spool 14 and an on v / i disgusting coil 16. One or the other of these coils 14 and 16 can be provided with a spring so that there is little tension in the ribbon as it moves from one reel to the other is transported. The thermally conductive ribbon 18 is from the spool 14 ^^ nter the guide rails 6 therethrough threaded up to the coil 16. An intermediate space or window is created between the guide rails 6.

Between the iliac holder 8 and the upper sheet 4 there is a Jruclcnagnet 20. The laser network has an opening which the core 22 of the magnet

allows vertical to-and-fro movement. The lower end of the core 22 bears the type stamp. Two tension springs 24 connect the type stamp to the upper plate 4, which forms the core 22 and the type stamp after activating the magnet pull it up again. The Typstenpel consists of a block-shaped one Holder 26, the lower face of which has 28 recesses for receiving τοη a maximum of seven adjacent, quarter inch high type 30 on v / eist. The front sides extend in the printing position of the types below through the tape guides 6.

The holder 26 is so large that it can pass through the window, M / elches is limited by the ribbon guides 6. It contains a 'ividerstandsheizelement (not shown) for heating the ink ribbon from the print of a character. The temperature of the heater is between 50 ° C and 300 ⁰ SbS 0 adjustable, being prevented by thermostatic control overheating of the belt 18.

On the back of the vertical side plate 2 is located near the axis 10 of the supply reel horizontal pin 32, which for fastening an Aufv; icke 1 or step switching magnet 34 is used. To the llagn et housing is a fork-shaped fastening tab 35 attached, which is mounted around the otift 32.

The take-up reel shaft 12 is in icr a JL-shaped mounting arm 36, which as another

Bearing of the axis 12 of the take-up reel is used. Located between the take-up reel 16 and the side wall 2 there is also a toothed lock 38.

On the axis 12 of the take-up reel and between the fixing device 36 and the side wall 2 is a crank 40, which is fixed to the Srosmiel or the actuator • a! freewheeling or overtravel clutch 42 connected is.

The core 44 of the step switching magnet 34 is with a Spring, as shown in Fig. 1, pulled to the right and besüt'zt a fork-shaped fastening tab 45 at its outer end, which engages with the crank 4Ü is located. Since the magnetic core 44 moves back and forth during operation, the end of the crank 40 describes a short arcuate movement, causing the step of the magnet 34 to move slightly back and forth on the pin 32 turns here. In the advancing direction of movement, the The clutch is actuated and causes the shaft 12 to be indexed step-by-step, as a result of which the ink ribbon 18 winds up. After the actuation magnet 34 has been switched off, the core returns to the in Fig. 1 shown lags behind. The clutch 42 is operated in the freewheeling direction. In addition, the ratchet 38 holds the axis 12 of the take-up reel so that it cannot twist.

Fig. 5 is now the electrical control device, which the actuation cylinder of the pressure magnet 46 and the Step switch magnet 48 is intended to control. DAe device

consists of a transformer 50, the primary side of which is connected to the Hetz via a switch if necessary is. The secondary side of this transformer has a center tap and is connected to a rectifier circuit and subsequent filter circuit connected. The voltage between the neutral line 54 and line 52 is minus 22 ToIt and the voltage between the ImIl line and the line> 6 is plus 22 ToIt. The switch 58 controls the actuation of magnets 46 and 48.

When the switch 58 is in the position shown, the capacitor 60 is across the lines 52 and 54 charged. Furthermore, the transistors $ 2, T4 and T6 are then also conductive, whereby the stepping magnet energized and when switched on the spool 16 is rotated, whereby a small piece of ribbon on the Type stamp is moved past.

If the switch 58 is now brought into its other switching position, either manually or by walking past it of the article to be printed, the transistors T1,

ä T3 UQd T5 conductive, so that the pressure magnet 46 is excited.

This causes the type stamp to move down and

prints the character on the type stamp on the item, which is located under the type stamp 28. the The winding of the magnet 46 remains dependent on the switch

1 '. ^ E excited for a constant period of time, this

reriode is determined by the circle OT, AT, 'n'ie Fig. shows, the Viiderstand RT is adjustable so that the

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The holding period of the pressure magnet is precisely adjusted can. In this way, the printing stamp can be held in the printing position until there is an effect full imprint of the mark has been made. In practice, the switch 58 is briefly in its other Poe and then returned to the position shown in Fig. 1, so that the capacitor 60 during the Printing process can be reloaded.

When using the device according to the invention for printing paper envelopes, the machine is held with fastening types over an O / ransporthand, over which the paper envelopes are routed. the Machine will, as in Pig. 1 is shown loaded with the Parbband. Then the heating element is switched on, in order to heat up the ribbon and thus to bring about a slight melting of the paria mass, with it this sticks better to the UmsdöLägen. The adjustable resistance RT is set according to the desired Feed speed set. If an envelope then gets under the ribbon guide 6, it switches this briefly toggles the switch 58, whereby the sequence of operations explained above is initiated.

In this Pail the pressure magnet 20 is excited and the Stepping solenoid switched off. This will lower themselves the core 22 and with it the printing types 30 and bring the stationary belt 18 into contact with the envelope, which just passes under the Parbband guides and4 »effect the imprint of the desired character.

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There now follows a preset short delay, the lateral constant of which is determined by RT and CT is, while v / elcher the type stamp in contact with held by the ribbon. After this preset csGXVin υθχ "3.11, vtSj-CuSS gcvvOhnllCh w6uXgS3? As ΘΧΰθ SekU'riuü includes, the state changes in the manner already mentioned, such that the stepping magnet 24 is now energized and the pressure magnet Sr 46 is switched off. Through the Action of the spring 24, the plunger is returned to the rest position.

The core 44 of the stepping magnet now rotates over the Clutch 42 the take-up reel 16 counterclockwise so far that a new, still unprinted area of the ribbon from the supply reel 14 is under the printing types 50 reached. The facility is now back in its original state.

The device according to the invention is now ready again for a further printing operation by briefly actuating the switch 58. In continuous printing operations, a full 'print cycle' _{is performed by running a λ of each envelope past the printhead.}

It has been shown that the device according to the invention is able to perform up to five full printing operations per second. When using suitable ribbons are the imprint of characters on cellulose film, wax paper, polythene, polypropylene,

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Metal foils, coated and other surfaces are possible, which are known to have difficulties occur when printing processes with wet inks are used.

Finally, the changeover switch 58 can also be replaced by a hikro switch, which according to a Another application of the invention actuated by a crouch of an additional packaging machine will,

Claims (10)

S 60 151/15 h Gfhm A 31 450 - "bo Machines Automated Ltd. 22 * Juili York House, Middlesborough Yorkshire (Great Britain) - G t3H K 691 Dmrhdu» PaJeirtamt, Claims 1. Device for printing license plates on bags, Packs, envelopes or the like using printing ribbons, characterized in that a magnetic coil (20) on the movable core (22) of which the 3 stamp (26) with the printing types (30) receives Dx ickkopf is attached, and a magnetic coil (34-)} whose movable core (44) with a stepping mechanism (38) 40, 42) for indexing the printing ink ribbon passed in front of the type stamp (26) (18) is coupled, are arranged in an electronic control system, which alternately controls the magnetic coil (30) energized for the print head and the solenoid (34) for the stepping mechanism. 2. Apparatus according to claim 1, characterized in that the controller has transistor storage elements, wherein one initiates the printing and tape transport processes manually or mechanically operated switch (58) is provided * 3. Device according to claim 1 or 2, characterized in that that the control switch (58) by the am »C *
t ft t ft Print head passed objects to be printed can be actuated. 4. Device according to claims 1 to 3, characterized in that that the printhead contains a resistance heating element. 5. Device according to claim 1, characterized in that a tension spring (24; Fig. 1) between the fixed housing part (4) and the pressure ram (26)
is provided; the latter returns to its original position after the pressure movement. 6. Apparatus according to claim 1, characterized in that the core (44; Fig. 1) with the magnetic coil (54)
a tension spring is provided, which returns it to its Euhelage. 7 · Device according to claim 6, characterized in that the clutch (42; Fig. 1) is used as a freewheeling ode ·
Overrunning clutch is designed so that after each
Advance of the printing ribbon, the core (44) of the magnetic coil (34) returns to its rest position. 8. Device according to claims 1 to 7? characterized in that for receiving the ink ribbon (18;
Fig. 1) a take-up reel (16) is provided. 9. Apparatus according to claim 8, characterized in that a ribbon magazine (14; Fig. 1) is provided, from which the ribbon (18) can be fed in front of the printhead, 10. Apparatus according to claim 9, characterized in that the printing ribbon guide rails (5 ₅ 6; Fig. 1) are on both sides of the longitudinal axis of the pressure stamp (26).