DE3410357A1 - DEVICE FOR THE SIMULTANEOUS PRODUCTION OF SEVERAL, BETWEEN TWO FILMS OF SEALED SURFACES, IN PARTICULAR BAND-SHAPED ELECTRICAL HEATING DEVICES - Google Patents

Description

Facility for simultaneous production several, sealed between two foils Flat structures, in particular band-shaped electric heater

The present invention relates to a method for
simultaneous production of several, between two foils
sealed flat structures, but in particular not
exclusively flat or ribbon-shaped electrical
Heating devices.

A main aim of the present invention is to provide a device with which products of the above-mentioned type with different widths, in particular band-shaped or strip-shaped electrical heating devices of different widths, can be manufactured economically.
Another object of the invention is to provide a device in which accurate registration of the

-ιο ί different components of such products, especially heating devices, is guaranteed.

According to one aspect of the present invention, a device is provided in which a substrate on which a number of longitudinally extending patterns are located along longitudinally extending parallel lines is slit or cut between the patterns so that a lengthwise portion between each two patterns can be removed. The substrate from which this part or parts have been removed, is then passed between plastic films and the plastic films are together in the area of which the or the substrate parts have been removed and bonded, e.g., welded or, along the outer edges of the substrate glued.

According to a second aspect of the invention, a device for aligning the substrate is created which contains a fixed guide roller, the axis of which runs parallel to and at a distance from the cutting or separating device, and a second guide roller which is mounted in such a way that that its axis is rotatable with respect to the axis of the fixed roller in a plane parallel to the axis of the fixed guide roller about an axis perpendicular to the axis of the fixed guide roller. A arranged between the fixed and the second guide roll sensor detects the lateral position of the current of the second guide roller to the fixed guide roller substrate and rotates the second _one guide roller to move the substrate in the transverse direction when a register error is detected in the transverse direction.

In the following, preferred embodiments of the present device will be described with reference to the drawings explained in more detail the two aspects of the invention account

wear and advantageously special separators and paper guides are used, the paper substrate column are only slightly thicker than the substrate, so that wrinkling is avoided.

Show it:

Fig. 1 is a plan view of one according to the present invention

Invention made heater; 10

FIG. 2 shows a section in a plane 2-2 of FIG. 1;

3 is a partially exploded view of FIG

Heating device according to FIG. 1;
15th

4 shows a schematic, partially sectioned side view of a device according to an embodiment of the invention;

FIG. 5 is a plan view of a printed paper substrate used in the device of FIG can be.

Figure 6 is a plan view of a substrate or paper cutting or separating device for the device according to FIG. 4;

7 and 8, seen in the planes 7-7 and 8-8 of FIGS. 8 and 7, respectively, sectional views of guides for Components of the heating device as used in the

The device according to FIG. 6 is preferably used;

Figures 9 and 10 are schematic representations of a substrate or paper position control arrangement for the device according to FIG. 1; and

11 shows a schematic plan view of a conductor alignment device for the device according to Fig.

In Figs. 1 to 3 there is a piece of an electric heater 10 shown. The heating device is more detailed in International Publication No. WO 82/00935 explained, so that a brief description is sufficient here.

The heater ^ 0 contains, as shown, a parity IQ piersubstrat 12 (for example from 0.14 mm thick, acid- and alkali-free, heat-resistant paper) colloidal the (typically by screen printing) a as a whole designated 8 semiconductive or resistive pattern of Graphite is printed on it. The pattern can be produced, for example, using a colloidal graphite printing ink from Amicon Corporation, Lexington, Massachusetts (USA). The graphite pattern 8 contains two parallel longitudinal strips 14 and a multiplicity of identical, regularly spaced semiconductor or resistance strips which run between the longitudinal strips 14. An uncoated edge area is provided on each edge of the substrate outside the respective longitudinal strips 14.

2g A copper electrode 22 is arranged on each longitudinal strip 14. The electrodes are cut out of a thin copper foil and are therefore slightly curved and pointed sharp points along both of their edges. The electrodes are arranged on the strip 14 so that their

O _{0, the} convex side faces upwards and the tips at the edges are directed downwards and are in engagement with the longitudinal strips 14.

The substrate 12, the printed graphite pattern 8 and the electrodes 22 are sandwiched between two thin plastic films 23, 24 hermetically sealed. The foils 23, 24

consist preferably of a laminate, which is a 0.05 mm thick dielectrically insulating polyester film ("Mylar") 23a or 24a and a 0.076 mm thick binder or adhesive film 23b or 24b made of polyethylene.

The polyethylene films adhere well to the graphite-free parts of the substrate 12 (both in the edge areas 16 as well as in the areas 20 between adjacent transverse strips 18) as well as on each other. The laminate foils 23 and 24 are wider than the substrate 12 and become outside the longitudinal edges of the substrate 12 with one another connected so that the desired hermetic seal or seal results.

The heater is connected to a power source by electrical lines 28. The lines included each have a pinch connection 30 with pins that pierce the plastic films 23, 24 and at one of the Attack electrodes 22.

4 shows a preferred embodiment 100 of the invention Apparatus for making heater 10 or structurally similar products. The establishment 100 includes a laminating device 102 (e.g. a 12 inch Mark I laminator from Laminex Inc., Division of A. Rexham Co., Matthews, North Carolina, USA), a paper supply spool 104 that holds the paper 112 carries, on which the resistor pattern 8 were printed, plastic film supply spools 106, 108, which have a role for the upper and the lower plastic film 123 and 124, respectively, four coaxially mounted copper conductor supply coils 110, each carrying a roll of copper conductors 122 and a feed misalignment compensator, indicated as a whole at 124 is. As will be seen, the apparatus 100 for the simultaneous manufacture of two is continuous or endless heating devices 10 designed.

In the illustrated embodiment, each is fabricated Heating device a so-called 4-inch or 10-centimeter heating device, where the total width of the printed resist pattern 8 is 4 inches or about 10 cm. Along a 0.8 mm (1/32 inch) wide unprinted border 16 is provided on each outer edge of the pattern 8 so that the paper substrate has a total width of 103.2 mm (4 1/16 inches) for each heater to be manufactured. The overall width of the plastic sheets 23, 24 of the heater is 127 mm (5 inches) and the sheets are arranged so that a narrow (i.e. 5.56 mm or 7/32 inch wide) sealed or glued area of plastic along one Edge of the heater and a wider one (i.e. 182, mm or 23/32 inch wide) sealed plastic area is provided along the other edge. The vertical stripes 14 of the printed pattern 8 are about 4 mm (5/32 inch) wide, i.e. about 0.8 mm or 1/32 inch wider than that Copper electrodes 32. Each transverse strip 18 is 6.35 mm (1/4 inch) wide, measured vertically between them its longitudinal edges, and the distance between adjacent transverse strips 18 is 3.175 mm (1/8 inch).

The printed paper web 112 shown in FIG. 5 is applied of roller 114 is 279.4 mm (11 inches) wide. The two resistance patterns 8 are printed next to each other and centered on this paper web. Between the two patterns 8 there is an unprinted part 113, the 38.1 mm (1.5 inches) wide and a 25.4 mm (1 inch) wide margin area 115 is provided along the outer edge of each pattern. The plastic sheets 123, 124 on the supply rolls 106, 108 are each 254 mm (10 inches) wide and the Copper strips 122 on supply reels 110 are each 3.175 mm (1/8 inch) wide.

The laminator 102 includes two powered hard. rubber feed rollers 130, 132, each partially from

an associated heater 134, 136 is surrounded. In the direction of travel in front of the intake rollers 130, 132 is an inlet guide designated as a whole as 138 and an inlet guide as Entire paper cutting or separating device designated 140 intended. In the running direction behind the draw-in rollers are two driven draw rollers 142, two Cooling fan 144 and a separating knife 146. Only the feed rollers 130, 132 and the draw rollers 142 are driven, as will become apparent. The paper and plastic supply rolls 104, 106 and 108 are replaced by conventional, Shaft brakes not shown kept under tension and the copper conductors are in a manner to be described held under tension or tension.

As Fig. 4 shows, the paper or substrate 112 travels from roller 104 around guide rollers or guide rollers 150 and 152, through the separator 140, around a guide roller or roller 132 into the inlet of the guide 138 and then into the Laminator 102. The copper conductors 122 from the supply reels 110 run over a brake roller 155, under a guide rod 156, then through a spacer frame 154, over a guide roller 158 and then under guide rollers 160 at the guide 138 onto the paper web 112. The guide 138 guides the placed Copper conductor 122 and the paper web 112 in a straight line between the driven feed rollers 130, 132 of the Laminating device.

The plastic films 123, 124 run from the guide rollers 106 and 108, to guides 162 and 164 and are then heated, while they are running about 180 ° around the associated heater and 136 (the heater temperature door is between approximately 150 and 155 ⁰ C (300 to 31O ⁰ F), before they run in supper position (above or below) with the paper web 112 between the feed rollers 130, 132. The layer structure, which (from top to bottom) from the upper Kurist-

fabric sheet 123, the copper conductors 122, the paper 112 and of the lower plastic film 124 is compressed by the feed rollers 130 and 132 to form the desired laminate. The laminate is then transported by the pull rollers 142 between the fans 144 and past the knife 146, which the latter halved the laminate lengthways, i.e. sealed the one on top of the other Plastic sheets 123, 124 along a line in the middle between the adjacent inner edges of the patterns 8 The two halves, each containing a heater 110, are placed on take-up reels 126 wound.

The feed rollers 130, 132 are coupled to one another and driven by a one-way clutch. The pull rollers 142 are driven at such a speed that their peripheral speed is 5% greater than the peripheral speed of the feed rollers 130, 132. The result of this is that the layer structure is formed by the pulling rollers 132 (in the illustrated embodiment at a speed of about 1.35 to 1.50 m / min or 4.5 to 5 feet / min) and the approximately 150 to 200 mm (6 to 8 inches) long laminated "sandwich" between the feed rollers 130, 132 and the pull rollers 142 is kept very tight. When starting up, the feed rollers 130, 132 initially transport the "Sandwich" to the pull rollers 142.

The cutting or separating device 140 shown in Fig. 6 contains two parallel steel rollers 165, 166, the create a distance or gap 169 therebetween of 0.178 mm (0.007 inches); the thickness of the gap (with tolerances) is about 25 to 50μπι (0.001 to 0.002 Inches) greater than the thickness (0.134 mm or 0.00055 inches) of paper 112. Separator 140 includes four Sets of separators A through D, each containing a

Cutting collar or Meisserbund 168 on the roller 165 and contain a cutting collar or knife collar 170 on roller 166 cooperating with this. The radial Distance between the two knife collars of each set is essentially zero (the maximum allowable distance is 25μΐη). Each knife collar has an outside diameter, the 0.127 to 0.152 mm (0.005 to 0.006 inches), that is, um about the thickness of the paper 112 / is greater than the outer diameter the width on which it is mounted, so that the adjacent axial end faces of the two knife collars 168, 170 of each set overlap each other. When the paper 112 is pulled between rollers 165 and 166 it becomes through the two knife frets. 168, 170 of each set slotted or separated at the axial interface of the knife collars. In the illustrated Embodiment are four sets of knife collars axially arranged along the longitudinal direction of the rollers 165, 166 at a distance from each other such that the sets B and C the Separate paper 112 along lines b, c (see Fig. 5) and the unprinted portion 130 between the two printed Remove pattern 8, leaving a 0.8 mm (1/32 inch) wide unprinted border 16 along the adjacent edges the pattern remains. The knife collars A and D are arranged so that they the paper 112 along lines a and d, thereby trimming the outer edges of the paper, with the unprinted portions 115 being the largest Part of the removal may be removed, but the desired 1/32 inch wide unprinted margin 116 along the outer edges the respective pattern 8 remains. The distance between sets of blades A and B is 103.2 (4 1/16 in.) Mm, that from knife assembly B to knife assembly C is 38.1 mm (1.5 inches) and that between knife assembly C and the Knife collar set D again 103.2 mm (4 1/16 inch).

In the device according to FIG. 4, the separation device 140 separated from the paper web 112

Printed paper or substrate parts 113, 115 are guided upwards around a guide 172 and picked up by one or more waste spools 174. It should be noted that these parts are removed from the paper web 112 before the remainder of the paper web enters the feed rollers 130, 132, where it runs between the plastic sheets 123 and 124. The plastic films 123, 124 therefore lie on top of one another both in the area between the adjacent printed patterns 108 (from which the part 13 of the paper web has been removed, Q) and along the outer sides of each pattern 8 (from which the parts 115 of the paper web have been removed ) directly opposite and are tightly connected to each other there so that a hermetic seal ^is assured along both edges of each finished heater 10 ·

The construction of the inlet guide 138 is shown in Figs. 7 and 8 are most clearly visible. As shown, it contains two flat plates 180, 182 spaced apart

_on are arranged one above the other in such a way that a gap 184 is formed between them which is slightly, but not more than twice, the thickness of the paper web 112. The thickness of the gap 184 is determined by transverse slots or grooves 186 in the lower plate 180 controlled,

_p. in which slats 188 are arranged, their vertical height is exactly the same as the depth of the respective grooves. In each groove 186 there are two layers under the respective lamella 128 113 of the paper 112 is provided. When the plates 180, are placed on top of one another, the paper layers compress slightly and the resulting thickness (i.e.

vertical height) of the gap 184 is then greater than the single but smaller than twice the thickness of the paper 112. The fins 188 also delimit the side edges of the passages 190 through which the paper 112 is drawn and

The width of each passage 190 is about 0.25 mm (0.010 35

Inches) larger than the approximately 103.2 mm width of the

paper substrate 112 drawn through the relevant passage.

A primary function of the guide 138 is to provide Accurately align copper conductors 122 with respect to the paper substrate. As shown, each copper conductor runs 122 around a corresponding guide roller 160 in an inclined, 3.175 mm wide groove-like slot 192 in the Top of the guide plate 180. At the top, i.e. the End adjacent to the guide roller 160, the slot includes an upwardly projecting pin 195. The pin has one About 1.59 mm (1/16 inch) in diameter and a rounded top end with the center about 0.8 mm (1/32 inch) protrudes from the base of the slot 190. The abutment surface or base 161 of the guide roller 160 is concave. The conductor 122 is under tension and the interaction of the concave base 161 of the guide roller 160 with the rounded one The head of the pin 195 causes the conductor to be convex upward in cross-section so that its edges face protrude below and thereby makes better contact with the printed longitudinal strips 14 of the patterns 8.

After the slots 192 direct the conductors 122 onto the longitudinal printed strips 16 on the paper substrate 12, the conductors and the paper are fed between the feed rollers 130, 132. The distance between the guide 140 and the feed rollers 130, 132 is very short, about 12.5 to 19 mm (0.5 to 0.75 inches), which ensures is that the congruence between the conductors and the pattern is maintained.

From the above discussion it should be apparent that maintaining proper alignment and relative position the resistor pattern 8, the separator 140 and the copper conductor 122 is essential. Because of the proportionate large widths of the hermetic seals or

Sealed between the plastic sheets 23 and 24 along the side edges of each heater 10 is the exact one Alignment of the plastic films is less critical.

Proper alignment and positioning of the components of the heating devices 10 is generally facilitated by the alignment compensator 126 and the guide 138 causes. The compensator 126 aligns the patterns 8 on the paper 112 with respect to the separator 140 so that each paper strip, exiting the separator, a complete pattern 8 together with the desired 0.8 mm wide Contains unprinted border on each side of the design. The guide 138 takes the paper strips from the separator 140 and aligns them and the ladder 122 with respect to each other so that each ladder properly up a corresponding longitudinal strip 14 of a pattern 8 comes to rest.

As shown in FIGS. 4, 9 and 10, the contains Alignment compensator 126 serving to regulate the transverse position, two fiber optic systems (in the exemplary embodiment shown, systems of the Lead Pack II type from Dolan-Jenner Company), each containing a fiber optic bundle 200 and 201 and a control board 202 and 203, respectively. the Outputs of the control boards are each coupled to a corresponding trigger or release relay 204 or 205, which in turn controls a corresponding power relay or contactor 206, 207, which with a Stepper motor 208 (e.g. a Slosyn type motor from Superior Electric Co.) are connected. Between the control boards 202, 203 and the relays 204, 205 are connected to a switching network 210 with inverters 211 and AND gates 213.

The fiber optic bundles 200, 201 each contain 40 fibers (20 of which each emit light and 20 light from the Substrate or paper 112) and optical lenses

209, 210 of the bundles (each about 0.5mm or 0.020 inch in diameter are midway between the guide rollers 150 and 152 near the outer edge of a longitudinal strip 14 of one of the paper sub-

g strat 112 printed pattern 8 arranged. The optical one Lens 219 of bundle 200 is positioned so that when the paper 112 is properly aligned with respect to the Separator 114 receives light from the black Semiconductor or resistance strips 14 of the pattern 8 re, Q has been inflected. The optical lens 209 of the other bundle 210 is transverse to the longitudinal direction of the pattern 8 (um about 0.5 mm or 0.020 inches across and about 12.5 mm lengthways for ease of handling Pattern so that it receives light from the white,

p. unprinted edge 16 next to the longitudinal strip 14 is reflected became. If the substrate drifts out of the target position by 0.5 mm in one direction (to the left in FIG. 9), get there both fiber bundles over the white unprinted edge and receive light that has been reflected from this; on the other hand, if the substrate migrates in the other direction (to the right as seen in FIG. 9), the lenses of both are affected Bundles of light that have been reflected from the black semiconductor or resistive strip 14 fall.

"Control output signals from the two control boards 202 and 203 of the lead pack system depend on whether the lens of the system in question receives ultraviolet light, which has been reflected from a light or from a dark part of the paper substrate 112. At the dar-

The embodiment shown is the control board 202 as shown in FIG

is set to provide a control signal when the lens 219 of the associated fiber optic bundle 202 receives light which has been reflected from a light (ie unprinted) part of the substrate 112 and has no output signal, _r . when the substrate is properly oriented and the lens receives light reflecting off a dark part

i.e. from the longitudinal strip 14 of the printed pattern 8. In a corresponding manner, the control board 203 is set so that it emits a control signal when the associated fiber optic lens 209 receives light which has been reflected from part of the printed pattern 8 is, however, not an output when the light has been reflected from an unprinted portion of the paper 112.

The relays 204 and 205 are clocked relays and take effect

^ q the output signals of the control boards 202 and 203 at regular intervals. If the control board at the time emits a signal after tapping, i.e. when the fiber optic bundle connected to the control board is detected has that the substrate 212 from its nominal position

₁ g has migrated, the relay forwards the signal to the corresponding contactor 206 or 207, which is thereby closed, and causes power from a power source 212 to be supplied to the stepping motor 208. The switching network 210 with the AND gates and inverters ensures that a control signal generated by one of the control boards 202 or 203 reaches the relay 204 or 205 assigned to this control board, but that none of these relays 204 and 205 receives a signal if for any reason (e.g. as a result of a

"C Soiling or irregularity of the substrate 212) both Control boards 202, 203 emit control signals at the same time. This ensures that the motor 208 will not be simultaneous is driven in opposite directions.

_on In the illustrated embodiment, the relays 204 and 205 are switched so that they pick up the output signals of the control boards 202 and 203 at intervals of 5 seconds. The length of time that the contactors 206 and 207 remain closed can also be set

_OI - and in this example is about 0.5 s In other exemplary embodiments in which the substrate 212

is running at a different speed and / or the step time of the motor 208 is different, different times may be used be used.

4 and 10, the engine 208 is on its own mounted in the longitudinal direction extending plate 252, which also both the supply spool 104 for the paper or Substrate and the guide roller 150 carries. The plate 252 is in turn on a base 254 about an axis 256, which is perpendicular to and between the axes of the paper spool and guide roller, with respect to the base and the The rest of the system 100 is rotatably mounted. A linkage 260 is connected to the base 254 and via a reduction gear to the shaft 269 of the motor 208.

As the top view in Fig. 10 shows, the linkage 260 includes a fixed arm 26 2 which is perpendicular to a Side of the base 254 protrudes, a lifting arm 264 which is attached to the motor shaft 26 9 and is with her rotates, and a connecting arm 266 hinged at its ends to arms 262 and 264. The distance of the Base axis 256 is from the axis of the output shaft 269 and the articulated connection between the arms 262 and 266 256 mm or 6 inches. The distance from the axis of the output shaft 269 to the articulation between the arms 264 and 266 is 25.4 mm or 1 inch. When the plate 255 is centered, i.e. when the line 268 which is the axis 256 and the axis of the motor shaft 269 connects, perpendicular to the lever 262 and parallel to the nominal direction of the substrate path extends through the system 100, the arm 264 forms an angle of 135 ° with the portion of the straight line 268 which extends from the motor shaft 269 to the base 264, and the axis 151 of the guide roller is parallel to the arm 262 and perpendicular to the nominal direction of travel of the paper. The end of the arm that extends beyond the point of articulation on the arm 266 262 is connected via a tension spring 259 to a point on the plate 252 which is in the middle between the base 254 and the axis of the paper roll 10'4 is around a possible Take up play in the lifting gear 260 and advance this

* tighten"

As can be seen from FIGS. 4 and 10, causes a Rotation of the motor shaft 269 so that the plate 252 (and thus the straight line 268 and the axis 151 of the guide roller) rotates about the axis 256 of the base. When the shaft 269 (as seen in Fig. 10) rotates 30 ° clockwise, it moves to point 269a and the straight line 268 and the axis 151 are counterclockwise in the Rotated positions indicated by dashed lines 268a and 151a, respectively (FIG. 10). A corresponding Rotation of the motor shaft in the counterclockwise direction brings the motor shaft 26 9 to the point 26 9b and rotates the straight line 268 and the axis 151 clockwise in the

¹ ^ positions represented by the long-dashed lines 268b and 151b, respectively.

It can be seen that the displacement of the axis 151, which results from a rotation of the MotoWelle 269 by 30 ° in the clockwise direction, is greater than that which is when turned by 3 0 ° in counterclockwise direction results. The shift per degree of rotation angle is also increased influenced by the spring 25 9 and the play in the linkage and motor. To ensure that the amount of Deflection of the guide roller 150 resulting from a single perceived control signal (from one of the control boards 202 or 203) is the same regardless of the direction, the length of time that the contactors 206 and remain switched on, set accordingly, namely the closing time of the contactor that the Counterclockwise rotation of the motor shaft controls, set a little longer than that of the contactor, which controls the clockwise rotation of the motor shaft.

It can also be seen from Fig. 10 that the rotation of the plate 252 about the axis 254 the guide roller in both

Longitudinal as well as transverse with respect to the nominal travel distance of the substrate 12 displaced. When the guide roller is shifted to the left (by rotating the plate clockwise towards line 268b and the guide roller axis towards the line 151b, as seen in Fig. 10) the roller becomes substantially axially to the left adjusted and also the left end of the roller to the base 256 and thus to the stationary guide roller 152 approached the separator 41 while the right end migrates away from these components. If, like it at In the exemplary embodiment shown, the distance from the axis 254 to the axis 151 is advantageously the case of the guide roller 152 is approximately equal to half the axial length of the roller, the distance that the roller follows moved to the left, roughly equal to the transverse displacement of each of its ends.

The effect of the displacement of the guide roller is that the substrate web 212 is displaced in the transverse direction and thereby one detected by the fiber optic bundles 202, 203 Register error is corrected. When the guide roller is shifted to the left (as seen in Fig. 10) the paper web 212 is shifted to the left in a corresponding manner, both directly by shifting the Guide roller 152 transversely to the nominal running distance of the substrate as well as indirectly, since the longitudinal displacement on the right side of the paper reduces the effective path of the substrate web, which runs around the right side of the guide roller, lengthened (which pulls the tension on the right side of the paper web 112 enlarged with respect to the train acting on the left side and the paper web to the left side of the Tends to move the guide roller while the paper web runs over the guide roller). A shift in the The guide roller to the right moves the paper web to the right in a corresponding manner.

In the illustrated embodiment, the linkage is 260 designed so that each rotational step of the motor 208, the guide roller 152 is now about 0.8 mm to 1.6 mm axially relocated. Overall, this results in a displacement of the paper web of about 0.5 mm at the point where the position is is monitored by the optical fiber bundle 202, 203 (about half of the total displacement occurs because of of the axial movement of the guide roller 152 practically immediately, while the other half is within the next occurs a few seconds when the paper shifts on the roll to compensate for the difference in tension); at the separating device 140, the corresponding displacement amounts to a total of approximately 50 μm.

Flg. 11 shows the spacer frame 154 and the brake for the copper conductors 122. The four reels 110 that the Carrying copper conductors 122 are usually positioned axially adjacent one another so that the copper conductors are properly spaced and with the longitudinal strips 14 of the pattern 8 must be brought to congruence before they are in the guide 138 are introduced. Furthermore, the ladder must be braked to ensure that they are always under tension.

As shown, the device 154 contains a plurality of guide rollers with their axes of rotation vertical, that is run perpendicular to the plane of a base plate 270 of the device 154. Each copper conductor 122 runs over two Guide rollers 272, 274. The rollers 272 are each arranged so that their inside (i.e. their center of the frame 154 facing part) from the path of the associated conductor 122 running off a supply roll 110 is affected. The rollers 274 are each arranged so that their outer side (i.e. that of the center of the frame 154 remote part) is tangent to a straight line that runs vertically above and parallel to the longitudinal strip 14, on which the respective conductor is placed.

The two conductors 122 and 122b on the left side of the frame are rotated 90 ° clockwise between the rollers 110 and 272, then run on edge around the rollers 272 and 274 (i.e. with the broad direction perpendicular) and are then after the rollers 274 and before they go over the guide 158 run, rotated 90 ° counterclockwise. Similarly, conductors 122c and 122d rotated clockwise before they reach rollers 272 and rotated counterclockwise after they passed over rollers 274.

The braking device includes a plastic plate 157 which is screwed tightly onto the top of the guide 155, which is passed through a stationary aluminum tube with a diameter of about 50 mm is formed. The copper conductors 122 run between the plate 157 and the guide 155, where the friction provides the desired pulling or braking force.

For the production of products, in particular heating devices of other widths, other embodiments can be used Other dimensions can be used, and fewer or more than two heating devices can be used at the same time produce. The device described above with its 12-inch laminating device can be used for this purpose, for example would like to make a single heater with the printed pattern 8 10 inches or 254 mm wide is by simply removing the cutter 146, the guide 138 and the separation device accordingly changes, and the number of copper conductors is reduced.

In a corresponding manner, the device with the 12-inch laminating device three or four so-called "3-inch" or 7.5 cm heating devices can be used at the same time where each printed pattern 8 is approximately 62 mm or 2 7/16 inches wide. With facilities that may contain wider laminators, seven or four

more "3-inch" heaters made at the same time will. In any case, no matter what special construction of heating device is to be made, The separating device 140 contains knife sets as required for separating the substrate 112 along lines will be, such as about 0.8 mm outside of each longitudinal strip 14, the guide roller 138 will be on each longitudinal strip position a copper conductor 122 and (if more than one security device is to be made) one or more knives 146 will be provided, around the sealed plastic films 123, 124 between adjacent cut sealed heaters 123, 124.

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Claims (1)

Patent claims Device for the simultaneous production of several products, each one in a longitudinal direction extending substrate part with a printed pattern (8) and an upper and a lower layer of sealing material, which extends in the transverse direction over the side edges of the substrate part in question extend and in longitudinal regions outside the side edges of the relevant Substrate part are tightly connected to each other, included, from a substrate on which several, in Longitudinally extending and laterally spaced patterns are printed, marked net through a) a substrate supply reel for receiving a substrate supply reel; b) sealing material supply spools for receiving of sealing material supply rolls for the upper and the lower layer; c) a laminating device (102) for positioning a layer of sealing material from one of the Sealant supply rolls on top of the substrate and one layer of sealant from the other Sealant supply roll under the substrate and for bonding these layers together; d) one between the substrate supply roll and the laminator (102) arranged cutting or separating device (140), which has an arrangement for cutting of the substrate along parallel, laterally spaced lines (b, c in Fig. 5) between contains two patterns printed on the substrate, such that one longitudinally extending Part (113) of the substrate between the mentioned lines (b, c) of itself in the longitudinal direction separating extending remaining portions of the substrate; and e) a guide (138) arranged between the separating device (140) and the laminating device (102), Insert the remaining portions of the substrate between the layers of sealing material into the Laminating device (102) directs where the layers are in the area between the longitudinally extending remaining parts are connected to each other. 2. Device according to claim 1, characterized in that on the guide (138) opposite Side of the laminating device (102) a cutting device (146) is arranged, which the connected layers along a lengthwise direction extending line in the area between and substantially parallel to the longitudinally extending side edges of an adjacent pair of remaining substrate parts.
10 3. Device according to claim 1 or 2, characterized by means (140, 170) for removing the longitudinally extending Substrate part between the mentioned lines (b, c) from the area of the separating device in one direction, substantially perpendicular to the path of the remaining substrate parts from the separating device (140) to Guide (138) runs. 4. Device according to one of the preceding claims, characterized by a device at (126) for determining the transverse position of the patterns of the substrate running through the separating device (140) with respect to the separating device and for transverse adjustment of the substrate when the determined position deviates from a specified full position. 5. Device according to one of claims 1 to 4, characterized in that each pattern (8) a longitudinal conductive strip (14) and that the guide (138) includes a device for positioning a longitudinal conductor (22) with respect to the strip of the Contains pattern of each remaining part of the substrate. β. Device for the transverse adjustment of a substrate, which from a supply roll along a substantially running longitudinally, marked by a fixed guide roller, the axis of which is perpendicular to the mentioned path and substantially parallel to the desired path of the substrate runs? a movable guide roller between the supply roller and the fixed guide roller is mounted so that its axis with respect to the axis of the fixed Guide roller in a plane parallel to the axis of the fixed guide roller around a plane to the axis of the fixed guide roller Guide roller can rotate vertical axis of rotation; one between the movable guide roller and the Fixed guide roller arranged sensor for determining the transverse position of the movable guide roller in the direction of the fixed guide roller running substrate and for generating a signal, if the ascertained transverse position of the substrate deviates from a predetermined target position; and a drive, which is operatively coupled to the mounted guide roller, about the axis of the movable one To rotate the guide roller under the control of the mentioned signal around the mentioned axis of rotation and that To move the substrate in the direction of the target transverse position. 7. Device according to claim 6, characterized in that g e k e η η zei chnet that the supply roll and the moving QQ borrowed leadership role with parallel and from each other spaced axes are mounted on a support which is rotatable about said axis of rotation. 8. Device according to claim 7, characterized in that g e k e η η - draws that the axis of rotation between the axis of the supply roll and the axis of the movable guide -5-role lies. 9. Device according to claim 7 or 8, characterized in that that a stepper motor is arranged on the support, the shaft of which is parallel to the mentioned axis of rotation and at a distance from it runs, and that the shaft of the stepping motor is connected to a point which is fixed with respect to the axis of rotation and is arranged so that rotation of the stepper motor shaft rotation of the support about the axis of rotation causes. 10. Device according to claim 9, characterized in that the fixed relative to the axis of rotation Point lies on a straight line which runs from the axis of rotation essentially perpendicular to the path mentioned, and that the distance of the axis of rotation from the point mentioned is approximately the same as the distance from the axis of rotation to the stepper motor shaft. 11. Device according to claim 6, characterized in that a pattern is printed on the substrate is, which is a longitudinally extending dark stripe of the substrate and a contains bright substrate part next to this strip, and that the sensor determines the position of the strip. 12. Device according to claim 11, characterized in that g e k e η η, that the sensor contains two optical fiber bundles (200, 201) and is arranged so that the end of one of the fiber bundles lies over and contains light from the dark strip and the end of the other bundle is in close proximity to it over the adjacent bright substrate part and receives from this light when the substrate is in the nominal transverse position is located, and each fiber bundle (200, 201) is assigned a control circuit (FIG. 9) which supplies a signal when the bundle in question emits light from a part other than that part of the substrate receives, from which it receives light in the desired transverse position of the substrate. 13. Device according to claim 12, characterized by a stepping motor (208) whose shaft jQ (269) is able to rotate the axis of the guide roller and an arrangement for sensing the output signals of the control circuits at predetermined intervals, which causes the motor shaft to rotate if the circuit in question receives an output signal J5 nal delivers. 14. Device according to claim 13, characterized by an arrangement for preventing a Rotation of the motor shaft when both circuits are on Deliver 2Q signal. 15. Apparatus for simultaneously fabricating a plurality of products from a substrate, each of the products includes a portion of the substrate extending in a longitudinal direction by a substrate supply spool for receiving a roll of substrate; I.
a slitting or separating device that holds the substrate _or > is fed from the supply roll to cut the substrate along parallel, laterally spaced and longitudinally extending lines so that a plurality of longitudinally side-by-side substrate parts are formed; ^and a guide that removes the substrate parts from the separator direction are fed, wherein the separator includes two spaced parallel rollers forming a gap of a predetermined vertical height form through which the substrate passes, the guide contains two parallel spaced plates, which form a gap of predetermined vertical height between them through which the substrate parts run , and the vertical height of the gaps is in the range t to 2t, where t is the thickness of the substrate, 16. Device according to claim 15, characterized in that the guide has two slots in the side of one of the plates facing the other plate and each parallel to the direction of travel of the substrate run through the guide so that in each slot a lamella with a vertical height, which is equal to the vertical depth of the respective slot, and that there are between each slot its base and the relevant lamella a spacer is arranged, which is not compressed State has a thickness that is calibrated at most 2t. 17. Device according to claim 16, characterized in that the spacer consists of the same Material is like the substrate. 18. Device according to claim 17, characterized in that g e k e η η - shows that the spacer contains two layers of the same material. 19. Device according to claim 15, 16, 17 or 18, characterized characterized in that the guide transversely to the direction in which it is traversed by the substrate, has a width which is greater by about 0.010 than the width of the portion of the substrate passing through the gap. -ΟΙ 20. Device according to claim 15, characterized in that the guide has in its upper side two transversely spaced inclined slots to position strips of conductive material with respect to the substrate parts, each slot protruding upward from its base at its end has a convex projection, and in that at said end a guide roller having a base which is concave in cross section is mounted, jQ said strip entering the guide engaging the base and projection so as to have an upwardly convex cross-section the strip is assured when they emerge from the guide. 21. Device according to one of the preceding claims, characterized by an arrangement for cutting the substrate along lines {a, d) which extends parallel to and located halfway in the transverse direction at a distance outside jQ of the edges of patterns (8) that are adjacent the side edges of the substrate ■ the next.