DE851796C - Device for stamping a continuously advanced tissue - Google Patents

Description

The invention relates to a device for stamping, marking, printing, embossing or the like. of signs, digits, symbols, decorations, patterns, marks and the like on moving tissue, such as cloth, paper or other flexible material and preferably on its edge.

The invention relates in particular to such machines that have a pressure stamp and a stamp plate and means for bringing about a relative movement of the stamp head and the stamp plate for the purpose of bringing these parts closer to one another in order to carry out a stamping operation, whereupon the parts are removed from each other again.

The main measure of the invention is to use a pressure ram for the purpose of angular movement to pivot around an axis which is so far removed from the punch head that the head in the transverse direction to the feed direction of the fabric can be adjusted precisely to accommodate the changes in the transverse movement of the fabric to follow ao.

In a preferred embodiment of the invention, the pressure ram is carried by means of support members on a pin, the horizontal of which The axis is essentially parallel in the feed direction of the fabric and the punch head is around

the axis of the pin is pivotable for the purpose of changing its position transversely to the direction of advance To be able to adjust the tissue.

It is sometimes necessary to mark proportionally close to the edge of a fabric, e.g. B. to be attached to the sash bar of a textile fabric to be pushed forward, but it is not easy to determine these marks exactly in one straight line and in the same one To be printed in the distance. This difficulty can be resolved if the pressure is always accurate takes place at the same point on the salbar.

These disadvantages are / eliminated by the invention in that the position of the punch head automatically transversely to the feed direction of the tissue by a power drive automatically takes place below Use of a control sensor that interacts with or through the edge of the fabric a photoelectric device that interacts with the fabric or its edge, ao The term stamp head includes all facilities for stamping, printing, marking, embossing or for performing similar operations on a tissue or the like by moving it down.

Another purpose of the invention is to provide a stamp head that has the od for printing Elements for performing the printing, embossing or marking od. The like. Has, so that these parts can be moved together with the punch head at the same time. For example, if matrices or types in the printhead require colors or the like for printing, an inking device can be installed in the printhead be arranged. A transfer paper supply with a feed device can also be installed in the head when printing using transfer paper.

The print head and its control element can transverse

be arranged to be displaceable or adjustable, and means can be used to regulate the contact pressure be provided to adjust the distance between the control member and the print head precisely.

The stamp or print head can also contain a displaceable die or type carrier, in a number of matrices or types are arranged, which come into effect one after the other. Of the Die or type carrier can consist of a drum or roller fitted with dies or the like, which may have unequal matrices distributed at intervals on their circumference.

The matrices or the like carrying drum or roller can have a heating device, for example several have stationary radiators, the arrangement of which is chosen such that the dies are heated when the drum is at a standstill.

The use of a type or the like supporting pressure roller has certain advantages. For example enables they that dissimilar matrices can be used one after the other and that a number of heating elements can be provided so that the dies can be heated before each print, if they are in their rest position.

If you want to print using transfer paper, you can use the print head also the support device for a transfer paper roll and a drive device for the feed of the paper that is pulled by under the pressure stamp.

The transfer paper can be fed in a direction transverse to that of the direction of travel of the fabric to be printed. The die carrying the punch or the Pressure roller and the drive device for the transfer paper by the relative displacement of the The print head and the control member are operated automatically with each printing process.

It should be noted that the advance of the transfer paper in the case of the above Device between each printing process is relatively low, so that the conveying speed of the Transfer paper is low.

In a preferred embodiment of the invention, the printhead is on an upright one Arranged column, which is pivotable at the lower end about an axis that is parallel to the feed direction of the Tissue lies. The head can be tilted slightly in relation to the column can easily be adjusted so that the head is in the. correct position in relation to the fabric to be printed got. The control member, which is linearly displaceable on the column, is with reference to the The punch head is moved back and forth by a shaft carried by the column, which is located in the lower part of the Column is mounted and carries a cam.

The punch head can be pivoted on the column about an axis that is perpendicular to the pivot axis of the Column lies on its side so that the head is adjusted by angular movement of the head relative to the column can be, wherein an extension is arranged on the head, which by a micrometer setting connected to the column to adjust the printhead with respect to the control member to facilitate.

In one embodiment of the new machine, the drum carrying the dies and the Feed device driven by switching devices intermittently, which by the control member at its backward movement with the stamp head can be actuated via angle levers that can be rotated on the print head are stored.

Furthermore, on both sides of the print head there are oppositely acting and reversible recording no limbs arranged to receive the tissue on one side of the head and it on the other side so that the tissue temporarily remains at rest when the print head takes effect comes. The tissue is then released again on one side of the print head and on the other other side pulled in, the tissue in the work site at a faster speed than normal is moved.

On opposite sides of the punch head there are take-up members for continuous feed of tissue to and from the head, and these counteracting and reversible Pick-up links can be on either side of the head between it and the conveying and shifting device be arranged.

The fabric is fed past the die head on fixed rollers, and the fabric extends to both of these guide rollers Pages in the form of loops over movable rollers which are arranged so that they can be moved together that by shifting it in one direction one loop is enlarged and the other is reduced will and vice versa.

The displaceable rollers are connected to one another and in a horizontal plane, expediently Can be moved between the fixed rollers parallel to the direction of movement of the fabric.

The slidable guide rollers can be operated by a rocker arm that with his one end is pivotably mounted, the other end directly or indirectly with the sliding guide rollers is connected and with its central part of a groove of a cam is controlled. The pivotable mounting of the rocker arm can itself be arranged to be displaceable again to avoid unnecessarily large lifting or Avoid lowering the top of the lever.

In the drawing, an embodiment of the invention is shown. It shows a device for Stamping the profile of a textile fabric.

Fig. Ι is the side view of a stamp machine, and

Figure 2 is its one end view; Fig. 3 is an end view of a plunger;

Fig. 4 is a partial end view of the upper portion of the plunger with parts omitted;

Fig. 5 is a side view corresponding to Fig. 3;

Fig. 6 is a partially sectioned side view of a device for adjusting the stamp head; 7 is a plan view of FIG. 6. The frame 10 of the stamping machine rests on adjustable feet. A supply roller 12 with a fabric to be printed is rotatably mounted on the side of this frame 10 on consoles 12 °. The withdrawn from the supply roll 12 tissue is initially between two successive stationary and driven feed rollers 13 ⁰ and 13 * through a pick-up roller 14, from there via a first guide roller 15, supported on a tissue table 16, over a second guide roll 17 and from there Via a take-off roller 18 and finally through two conveyor rollers 19 ″, 19 * resting on top of one another, to any further treatment device or the like.

Of the two pairs of conveyor rollers 13 ⁰ , 13 * and

19 ⁰ , 19 ⁶ each of the lower rollers 13 * and 19 * are driven by a drive at the same speed, so that the fabric is always advanced at the same speed.

The take-up and take-off rollers 14, 18 together with a frame 20 in which they are rotatably mounted, form a carriage which is displaceable in the U-rails io * of the frame. This roller carriage 20 is connected to control levers 22 via links 21. The lower ends of these levers 22 are arranged displaceably by means of rollers 22 ″ in longitudinal slots 23 of the longitudinal rails io ^{c of} the machine frame.

^{Guide pins 22 6} are arranged laterally on these levers 22 and slide in cam grooves 25 * of cam disks 25.

These cams 25 are arranged on a shaft 24 supported by brackets 24 'which are io mounted on vertical struts of the machine frame ^d. With each rotation of the shaft 24 will by means of the cam 25, the lever 22 and consequently the scales 20 and its Rollers 14, 18 moved back and forth once, whereby the displaceability of the lower ends 22 ° of the lever 22 in the longitudinal slots 23 means that the upper end of the lever 22 does not have to be raised and lowered unnecessarily.

A transverse shaft 27 is driven by a variable speed motor 26 (FIG. 2) via pulleys 26 °, 27 "and a drive belt 26 *, which can set a vertically arranged shaft 28 in rotation ^{by means of bevel gears 27 * and 28 0.} by means of bevel gears 28 * and 29 * · is of the shaft 28 is another cross shaft 29 (Fig. 1) is rotated. by this shaft 2 ^ 9, the lower rollers 13 ⁰ and 19 ⁶ of the carrying roller pairs through the bevel gears 29 ⁰ are 13 "and 29 ', 19 "are driven accordingly at the same speed. As it rotates, the shaft 27 entrains the shaft 24 via a chain drive 24 * (FIG. 2).

The cam disks 25 are driven at such a speed that the roller carriage 20 so accelerated when moving from left to right in Fig. 1 to a distance of about 2.5 cm is that it reaches half the feed speed of the tissue, this speed on one Maintains a distance of about 15 cm, so that a stamping process during the time required for this can be carried out, and is finally stopped for a further approx. 2.5 cm, with which the end of the feed is reached. When reversing, the roller carriage 20 is 12 cm accelerated and slowed down again to another 12 cm.

From this it can be seen that when the take-up rollers 14, 18 are moved to the right, the ^{advance of the fabric caused by the conveyor rollers 13 0} , 13 ⁶ by increasing the length of the loop of the fabric guided around the roller 14 between the rollers iz ^b and 15 is balanced so that the fabric just located between the rollers 15, 17 comes to a standstill, although the rollers 14, 18 continue to convey. This standstill of the tissue lasts until the carriage 20 has reached its right end position. During this time, the loop of fabric guided around roller 18 and extending from roller 17 to roller 19 ⁶ is correspondingly shortened by the conveying effect of rollers 19 °, 19 ⁶ , without the standstill of the fabric section on table 16 being impaired.

The rollers 14, 18 act in opposition when they be moved by means of the carriage 20 to the left, so that the tissue is then on the table 16 between the rollers 15, 17 is further promoted at greater speed.

At its lower end is an upright column 30

mounted pivotably about pin 31. Their inclination from the vertical can be influenced by a connecting ^{rod 32 which is hinged to the column 30 by means of eyes 30 0} and which can be moved by special means. At the upper end of the column 30 two consoles 30 * are screwed, which carry a fixed bolt 33 *. The actual pressure ram 33 (FIGS. 2 and 3) is pivotably arranged around this bolt 33 ″ by means of two side parts 33 ^{0. A rod 34 (FIG} The roller 34 ° rests on the circumference of a cam disk 35 which is keyed onto the shaft 36. This shaft 36 is rotated from the shaft 27 by means of gear wheels 27 ″, 36 °. As a result, by means of the cam 35, the rod 34 is given an intermittent up and down movement, since it is constantly pressed down ^{by a spring 34 b.} The upper end of the rod 34 is connected to a control member 37 carried by the column 30. By means of a micrometer adjustment device 38, which is carried by protruding extensions 33 ° of the side parts 33 ° and which is supported against an eye 34 ^{d of} the column 30, the respective position of the punch head 33 in relation to the column 30 can be adjusted easily and precisely will.

The side parts 33 ⁰ (FIG. 34) carry a roll of pressure transfer ^{paper 39, a roller 40 held by a pin 40 0} and having types 4 o " ¹ and a feed roller 41 which is ^{rotatable about a pin 41 0} and which transports the paper 39 ⁰ from the supply roll 39. Above the feed roll 41 is a roll 42 which is used to wind up the used transfer paper and which is held in its position by arms 42 ^{0 pivotable about pins 33 6} when the roll 42 increases its diameter.

The side parts 33 ⁰ are provided with depending arms 43 which carry tension rollers 44, 45 and a sensor roller 46, wherein a safety device can be arranged between these rollers which stops the apparatus if the paper web breaks. In order to prevent the control member 37 from being soiled by the transmission mass, it is advisable to install a shock coupling in the push rod 34, which prevents the push rod 34 from being lifted when the device is shut down. The control member 37 carries on each side a pin 34 ^c, the one with a 47 ⁰ pivotable two-armed fork lever 47 and the other cooperates with which an 48 * pivotable two-armed fork lever 48, 48 ⁰ can serve as a stop its end.

A holding lever 30 ″ is pivotably mounted on one console 30 ^{b and} is pulled down by a spring 30 ″ *.

With the lever 49 arms are * connected 47, 47 ', which act on levers 49 50th This shift lever 49, 50 have ratchets 49 ^0, 50 ^0, which with the ratchet teeth 40 ^6, 41 * to the pressure roller 40 and the Cooperate roller 41. The pressure roller 40 carries noses 40 ° for the locking lever 30 "and for the stop lever 48". The pressure roller 40 is brought to a suitable temperature by a built-in electrical heating device, the elements of which are arranged in a radial manner and which correspond to the types of pressure roller lie on the same radius when the pressure roller is at a standstill. Appropriate thermostatic monitoring devices can be provided in order to achieve or maintain a predetermined temperature range. The electrical supply line is designated by 40 ".

The pressure device works in the following way: The upward movement of the push rod 34 with the control member 37 and the pins 34 ″ ^{rotates the levers 47, 48 ° clockwise, the pawls 49 0} , 50 ⁰ via the shift teeth 40 ⁶ , 41 ^b unhindered slide away and the upper end of the lever 48 ° comes out of the area of the noses 40 °. The printing drum and the paper feed remain at rest. In the upper position of the control member 37, the fabric is pressed firmly against the transfer paper and the types of pressure roller and thereby the For the purpose of regulating the precise setting of the printing drum 40 with respect to the control element 37, the micrometer setting 38 can be actuated.

During the downward movement of the push rod 34 with the control member 37, the levers 47, 48 ° are pivoted counterclockwise, the pawls 49 °, 50 ⁰ engage the teeth 40 ″, 41 *, and the pressure roller 40 is rotated by 60 ° Roll 41 pulls the transfer paper further from the supply roll so that fresh paper is available for the further stamping process in front of the pressure roll. At the same time, the lever 30 ″ works together with the noses 40 °, and the lever 48 ⁰ moves inward behind the next stop lug 40 ″, which temporarily prevents the stamp roller from rotating counterclockwise.

A photoelectric device 51 is arranged on one side of a side arm 33 ″ of the printing stamp in order to be able to monitor the exact position of the sash bar on the woven fabric edge of the cloth 11. The photoelectric device 51 is connected via a cable 53 with an electric motor 52 (FIG An amplifier 54 is connected to the electric motor 52, which is used for guidance control, via a power line 55 and a switchboard 56 via a cable 57. On the switchboard 56 (FIG. 1) there are pushbuttons 56 ⁰ , 56 ⁰ , 56 ^C and 56 "* arranged through which a steady gear, a reduced gear and a coarse and fine control of the engine can be effected.

^{A gearwheel 52 0} (FIG. 6), which meshes with a gear wheel 58 ⁰ arranged on a countershaft 58, is keyed on the axis of the electric motor 52. This countershaft 58 is mounted in two ball bearings 59 and is designed as a screw spindle 58 * in the part located in between. In the screw groove 58 * of this shaft 58 engages a parallel crosshead 32 ″ equipped with a nut thread, which is connected to a control rod 32. This rod 32 is connected to the column 30 and, through its displacement, changes the inclination of the column 30 and thus the

Transverse adjustment of the pressure roller and the control member 37 to control the pressure of the Sal ledge.

Claims (15)

P AT E N T A N S P Π C C H E: 5 ι. Device for stamping a continuously advanced and at certain intervals of its length to be printed fabric, in particular for printing fabric edges with ίο a punch head on one side of the fabric sheet and an abutment on the other side of the fabric web and with means for achieving a relative displacement of the punch head and the abutment, so that these parts are for the To be able to approach each other and then move away from each other when performing a printing process, characterized in that the punch head (40), for the purpose of bringing about a pivoting movement, on a pin located away from it (3 ¹ ) is mounted so that the punch head (40) can be adjusted in a direction transverse to the tissue feed to allow changes in the transverse displacement of the tissue. 2. Apparatus according to claim 1, characterized by a horizontally arranged pin (31), the pivot axis of which is parallel to the direction of advance of the tissue, with between the Pin (31) and the plunger (40) a support rod is arranged through which the plunger is made possible to allow a pivoting movement about the axis of rotation of the pin, for Purpose of adjusting its position transversely to the tissue vorschubrich device. 3. Apparatus according to claim 1 or 2, characterized in that the pressure ram (40) on an upright column (30) is arranged, which with its lower end or near its lower The end is pivotable about a horizontal axis that is parallel to the direction of advance of the tissue is and allows the small pivoting movements, for the purpose of setting the plunger (33) at right angles to the direction of tissue advance. 4. Apparatus according to claim 1, 2 or 3, characterized in that the punch abutment (37) and the plunger (40) for the purpose of pivotability together about a horizontal axis (31) are pivotable, which is expediently parallel to the feed direction of the tissue. 5. Device according to claims 1, 2, 3 or 4, characterized in that the pressure stamp (40) transverse to the direction of advance of the tissue by a power drive under control is set automatically, e.g. B. by a feeler (46), which rests against the edge of the fabric, or by means of a photoelectric device that controls the tissue or its edge. 6. Device according to one of the preceding claims, characterized in that on the Push button a sliding support for a number one after the other in the working position bringing stamp is arranged, wherein the carrier expediently consists of a rotatable There is a drum that carries the stamp at certain intervals on its circumference and which at least includes a heater. 7. Apparatus according to claim 6, characterized in that the drum (40) has a plurality contains stationary heating elements that correspond to the position of the stamp when the drum is stationary. 8. Device according to one of the preceding claims, characterized in that the The punch head forms an independent unit and also has a die or a movable one Stamp carrier, which has a plurality of stamps, with a supply roll for Transfer paper and means for conveying the transfer paper to the stamp or the stamps is united. 9. Apparatus according to claim 8, characterized in that the pivotable die carrier and the feed device for the pressure transfer paper are driven intermittently via pawls by crank arms that are attached to the punch head are rotatable and by the relative retraction of the punch head and the Stamp plate are actuated. 10. The device according to claim 3, characterized in that that the stamp plate is guided in a straight line on a column in such a way that it is supported on this column by one carried by the column Rod by means of a cam, which is arranged at the lower end of the column or in its vicinity can be moved alternately towards and away from the pressure ram. 11. Device according to one of claims 2 to 10, characterized in that the plunger is pivotably mounted on its support about an axis (33 *) which is perpendicular to the longitudinal axis and protruding laterally on one longitudinal side of the support device or column (30) so that the die or several of them can be adjusted relative to the die plate by angular displacement of the die head with respect to the support. 12. The apparatus according to claim 11, characterized in that the punch head (33) has a downward extension (33 ^C ) which is connected to the support or column (30) by a micrometer device (38) for precise adjustment of the head (40) in relation to the stamp plate (37). 13. Device according to one of the preceding claims, characterized by means (13 ⁰ , 13 *; 19 ⁰ , 19 *) on the opposite sides of the punch head (40) for uninterrupted feed to the punch head and away from it, by fixed parallel guide rollers ( 15, 17) for the material on both sides of the punch head, by means of slidable take-up rollers (14, iao 18) on the opposite sides of the punch head, for the purpose of guiding the material to and from the fixed feed rollers, in the form of a loop, through connecting links between the movable take-up rollers in the form of 125. a roller carriage (20), around the take-up rollers (i4> i8) to be able to move together on a straight path parallel to the feed direction of the fabric between the fixed guide rollers (15, 17) and by means (22 *, 22, 21) for moving this roller carriage (20) back and forth in a temporal connection with the movement of the pressure ram (40), the receiving rollers (14) between the conveying means (13 °, 13 ⁶ ) and the stamp head (40) being moved so that they are material on one side during a movement of the carriage (20) can record in order to increase its path between the conveyors and the punch head, while at the same time the take-up rollers (18) on the other side are shifted the same to let the material emerge so that the path between the punch head (40) and the other conveying means (19 ", 19 ⁶ ) is reduced in order to let the material on the punch head temporarily stand still, while conversely during the backward movement of the carriage (20) the rollers (14) the path d shorten it material and those take-up rollers (18) lengthen the path, whereby the speed at the punch head is increased by an amount that is greater than that of the conveying means (13 ", 13 ^ ₁ 19 ⁰ , 19 ⁶ ). 14. The device according to claim 13, characterized in that the displaceable take-up rollers (14, 18) are driven by a pivotable lever (22) which pivots with its other end on the roller carriage (20) and on the between its hinge points a driven cam disk (25 ^s ) acts. 15. The device according to claim 14, characterized in that that the articulated end of the rocker arm (22) is displaceable to a limited extent is arranged to avoid unnecessary raising and lowering of the other end of the lever. For this purpose 2 sheets of drawings © 5395 9.52