DE1410907C - Device for the heat treatment of running goods - Google Patents

Description

1 2

The invention relates to a device for effecting, with the next to be released Heat treatment of running goods, in particular coming radiators are preheated. This is supposed to for fixing stretched polyamide cords to adjust the temperature required in each case Tire production, consisting of a heating and a type of goods and a variable throughput The cooling zone following it, in which the gas speeds of the same are made possible. To the shaped, hot treatment agent or the cooling control of the material heating serves an automatic medium flows from nozzles onto the material to be treated, from resistance control the radiant heater. Besides that Supply lines for the treatment agents can be used to determine the effective length of the heating zone the nozzles and a device for constant-automatically adjust that only the required maintenance in each case the treatment temperature as well as the ventilator number of heating elements switched on or gates for the circulation of the treatment agents. is not covered. These two ways to A known problem in the fixation of influencing the tissues given to the item to be treated, Cords etc .. is that the NEN amount of heat allows an adaptation to the relevant device continuously passing through respective kind of goods to and to variable through-goods a precisely dosed heating is exposed to the running speeds of the goods, the inward and outward movement got to. In the case of polyamides in particular, there is a switch that is attached along the heating zone Danger that these emitters and their individually controlled melting at excessively high temperatures or decompose. On the other hand, it must coincide, but requires a complicated electrical system reach a certain minimum temperature. Since tric control and a very complex and changing throughput speeds of the failure-prone mechanical actuation of the items to be covered can result, must have a corresponding component.

The invention is therefore based on the object heating zone can be made. In this case, a device of the type mentioned must also be used It is also ensured that the cooling zone does not create a rapid, adaptable and averageable one at the end of the heating zone. 25 allows precise heating of the material to be treated, and It is already a device for fixing with the least possible structural effort and continuously supplied webs of fabric from syn- low maintenance requirements in as unanthetic as possible Fibers known, their treatment room due construction. Above all, it is required that by interposing a permanently installed despite the changing speed of the running Partition wall divides the heating and cooling zone into 30 good products and is subjected to uniform thermal treatment. The gaseous hot treatment agent that is aimed out is, in particular, one over certain electrically superheated steam or hot air, heating of the goods beyond the maximum values consists of both is avoided within the heating zone.

As a solution, according to the invention, a device is provided carry. The same nozzle arrangement is provided in Figure 35, which is characterized in that soder Cooling zone. The hot treatment agent will likely become the delivery nozzles for the hot treatment as well like the coolant while maintaining a constant medium as well as the feed nozzles for the coolant its temperature under constant association to a common, through the treatment ■ conditions blown onto the fabric web. An zone-extending feed channel are connected, matching of the heat treatment, in particular the 40 at one end of which the hot treatment agent Heating of the fabric web, on the type of and at the other end of which the coolant enters, tissue to be treated can only be controlled by a and that in this feed channel a controlled change the throughput speed of the goods gate valve is provided, through which the successes. Since the length traversed by the material is number of exposed to the hot treatment agent Heating and cooling zones hit a fixed value 45 feed nozzles compared to the number of has and also the temperature of the treatment agent with the coolant acted upon feed nozzles remains the same, this device cannot be changed according to the speed of the crop changing throughput speeds of the goods.

which can be production-related, for example. With this solution, the adaptation> the customize. Rather, care must be taken to adapt the device to different types of goods or to wechdaß a certain throughput speed exactly selnding material speeds in a simple manner is adhered to. Otherwise, the quality of the by a corresponding setting of the length of the Treatment of the fabric web reduced. Since no heating and cooling zones can be reached. To do this, Adaptation to variable throughput speeds, there is only one gate valve within a feeder, the possible uses of the pre-channel are shifted, at one end of which the hot one direction limited. and at the other end the cool treatment case Another known device is it enters medium. This with simple structural means possible, for the fixation of web-like synthetically- achieved adjustability of the respectively required table fabric in a heat treatment length of the heating zone, to which in each single chamber, in which the product adjoins the cooling zone in its radiation position, allows an effective intensity by switching on and off individual or the same, precise and quickly responding dosing Groups of one behind the other in the web direction - the heating of the material to be treated. Because for this lying radiators the heating state of the only one in the feed channel for the handling goods adjustable irradiation path bypassed treatment means depending on a corresponding the switching on and off of the lamps is provided in the 65 control of sliding gate valves The device according to the invention can be adapted to the heating state of the handler Set up maintenance goods automatically by covering or clearing them with little structural effort. They result in the emitter only requiring little maintenance compared to the item to be treated and stand out

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through a comparatively superior operational reliability - in each case for the most favorable treatment of the goods

is from. suitable position are shifted, is in inventive

If the device is provided with suction nozzles and a corresponding development, that the control discharge line to remove the treatment agent tion of the drive motor to the "process of Abaus The treatment zones are provided with a 5 gate valve depending on the channels Further development of the invention characterized by the value of the voltage of a transnet that the suction nozzles for the hot treatment port roller are driven for the material to be treated medium and the suction nozzles for the coolant on the generator. The terminal tension of the genes common rators through the treatment zones is the speed of the selected extending discharge duct are connected, io transport roller proportionally, so that the momentary eats one end to the suction side of the feed channel values the voltage for actuating switching for The valve elements that feed the hot treatment agent can be used, which leads to the drive gate and the other end to a suction motor for moving the gate valve in the fan is connected, and that in the flue adaption to changes in the throughput speed further controlled gate valve provided 15 actuate speed of the goods. A circuit can be used for this is by which the number of the hot hand- from a source of electrical energy to the priming agent suction nozzles opposite the drive motor with a group of position switches number of nozzles extracting the coolant and a group of switches corresponding to the position of the gate valve for the voltage values responding switches, inflowing treatment agent is changeable. 20 which are each connected in pairs, where-these Arrangement ejlaubt an adaptation to that in the case of the motor on the common actuation of a respective position of the gate valve within the pair of associated switches of the two of the feed channel for the treatment media, so groups respond and the motor runs until that still in an economical manner, the slide is in a position that the suction with separate ducts take place 25 corresponding to the current material speed, and in can. the two switches de-energize the drive motor

So that the hot treatment agent is as full as possible.

The aforementioned control is expediently so

sucks and is arranged around a suction of the treatment that along the path of the outside of the

medium in the area of their feed is 30 channels running chain center at intervals switch-

it is advantageous that the feed and suction nozzles are arranged in pairs of the two groups, the

alternately one behind the other in the web direction - connected one behind the other in parallel bridges between

are arranged and that the gate valve are in the trigger and a first and a second conductor

channel opposite the gate valve in the feed, one of which is considered to be normally

channel by a certain amount after the cold 35 closed switch through to the terminals of the

The end is offset to the side, the relay coils connected approximately to the Ab generator when it is reached

stood a feed from the next suction nozzle of a certain value of the terminal voltage of the

is equivalent to. Generator is opened and the other normal

So that the gate valve within the channels wise open switch each by one on the

can be moved as quickly as possible and without friction, 40 switching element attached to the chain can be locked

it is advantageous if within the trigger and and that a relay by a switch the

of the feed channel each interrupts a pair of power supply to the drive motor at the bottom thereof, if

parallel at a distance from each other and longitudinally the switching element during the longitudinal movement of the

direction of the respective channel extending rails chain center a switch of a group

is arranged, on which one closes the gate valve 45, the associated switch of the other

carrying car can be moved by means of rollers, the group is closed. As a switching element,

essentially a pair of parallel at a distance moderately provided a contact shoe on the

arranged from each other as well as connected by rods with chain ends lying outside the channels.

consists of mutually connected longitudinal rails, is introduced and arranged along its path

which the rollers are rotatably mounted. 50 position switches and one with these switches

The formation of the gate valve is purpose group actuated as soon as the chain center is actuated

moderately characterized in that each shut-off of the drive motor is moved,

slide has a slide plate, which in on-r so that an excessive heating of the goods during

position on the right by means of flanges on the wagon

is fixed and on the two sides of which a 55 is provided is provided in a further development according to the invention.

curved baffle for the deflection of the stream see that in such a case contacts a

tion of the treatment agent is appropriate. Conductor circuit for the return field winding of the

So that the stiffest possible construction of the slide drive motor close the gate valve

as well as an extensive dimensional stability of the lead then in its extreme limit position on the hot

surface is reached, these point to the curved 60 end of the device moves. In this position

There are stiffeners on the edges and no more hot treatment agent is supplied to them.

Slide plate facing away from the ends at the bottom of the

Car attached. a lot of effort, even if the heater for the

In order to achieve an exact shift, hot treatment agents and their fans are

the gate valves are expediently attached to chains, 65 must be switched, as in such a case

which are driven by a drive motor. restarting the device is made difficult.

So that the gate valve in adaptation to the The device according to the invention is therefore useful

Web speed of the material to be treated in the moderately pivoted and under pressure

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auxiliary slides brought into the closed position Fig. 15 shows an end partially in section for. Openings in the feed channel opposite the view of the device according to FIGS. 13 and 14,
Guide channel marked, which in a predetermined Fig. 16 and 17 partial views of fork-shaped th overpressure of the treatment agent in the supply, supply and suction nozzles according to the F i g. 1 channel each open automatically, whereby the loading 5 and 3 as well as 13 to 15,

handling means directly into the drainage duct. FIG. 18 shows a section through the device

can flow. 13 to 15 in a vertical plane,

If the Fig. 19 is a circuit diagram of the electrical control

Gate valve in the extreme limit position or in the gate valve,

its proximity to the hot end of the device compared to FIG

drive, the feed nozzles cannot be used in the device according to FIGS. Ibis 19,

or just a small amount of hot hand- F i g. 21 shows a partial view of the auxiliary slide according to

flow out so that an overpressure in Fig. 20 to show further details,

Feed channel arises. In this case, the circuit diagrams in FIGS. 22 and 23 are opened to display

Feed channel attached auxiliary slide an opening, 15 modifications in the arrangement according to F i g. 19

which connects the supply channel with the discharge channel, FIG. 24 an enlarged, partly in section

so that the hot treatment agent is immediately drawn in a view of part of the device

can flow through the flue and the circuit Fig. 18 to reproduce the storage for protective

of the heat treatment agent still upright-wired at the inlet end of the device,

is obtained. 20 Fig. 24 a is an enlarged partial view of a part

The invention is described below with reference to one according to FIG. 24,

Embodiment with reference to the drawings F i g. 25 one of the F i g. 24 corresponding view

explained in more detail. In the drawings shows to reproduce the protective wire storage on the

F i g. 1 shows a simplified schematic representation of the end of the device.

an apparatus for the heat treatment of rolling 25 Fig. 26 is a view of the closure plate of the front Good direction.

F i g. 2 shows a plan view of such a device. The device shown in the drawings

To illustrate the arrangement of the feed and the 11, the heat treatment is used continuously

Discharge channel for the treatment agent, running material, for example a web 12 from

F i g. 3 is a side view of the FIG. 2 again- 30 a polyamide thread fabric or from corresponding given Device with partially broken away stretched cords consisting of the material. the Parts for showing a cross-section in the essential path 12 are driven by a motor 16 borrowed along line 3-3 of FIG. 2, driven transport device by a

F i g. 4 shows a detailed view of the construction of a heating zone and a cooling zone of the gate valve following these zones for a device according to FIG. 1 35 direction. The stretching required in each case takes place in cross section along a horizontal plane, through a corresponding roller guide 13, 14

F i g. 5 shows a cross-section through the device outside the treatment room as a function

parts according to fig. 4, in a vertical plane, from the control of roller drive motors 15

F i g. 6 shows a cross section through an angular or 16. For the adjustment of the speed, with

Rail construction to accommodate the 4 ° that the track 12 runs through the treatment room,

Level 6-6 according to F i g. 5 cut drawn loading and regulating the heating and cooling

movable gate valve, the same finds a switching device with a

F i g. 7 is an enlarged fragmentary view of a portion of the control panel 17 use with which the FIG

4 to illustrate the connection of FIGS. 19 and 20 reproduced electrical control

Drive chains with the gate valve, 45 tion can be influenced in more detail later

Fi g. 7A, an enlarged partial view of a part will be described. The heating of the web 12 the device according to FIG. 4 in section along a takes place with the aid of a hot gaseous treatment vertical Level 7 A-7 A according to Fig. 7, ventilation means, which the treatment room through

F i g. 8 an enlarged partial cross-section of a feed channel 18 achieved by its one

Part of FIG. 4 to illustrate the seal 50 is fed to the end while cooling is through

the gate valve, which is also a gaseous treatment agent, takes place,

F i g. FIG. 9 shows a cross section through a supply channel that leads to the treatment room through channel 18 from FIG

along line 9-9 of FIG. 4, the other end of which is fed here. Furthermore is

. F i g. 10 is an enlarged partial view of a front exhaust duct 19, which is connected to a

direction according to fig. 2 in the form of a side view 55 fan 39 is connected. The feed channel 18

the array of position switches and one is at one end 21 with a source of hot

Contact bar in section along the line 10-10 of the treatment agent, for example with a hot air

F i ß. , 11, line, and at the other end 24 with a coolant

F i g. 11 shows a cross section of the device according to telquelle, for example with a cooling air line

Fig. 10 in the plane 11-11, 60 bound. The hot air is through an electric

Fig. 12 is a perspective view of the position heater 22, a gas heater, one with oil or coal

switch arrangement according to FIGS. 10 and 11, of operated heater or another Heizvorrich-

Seen from the rear, device generated within the feed channel end 21

Fig. 13e: rs plan view of a device to be arranged or assigned to it and to a valve

Representation of the arrangement of the gate valve and ⁶ 5 lator 23 is connected, the hot air in the

Nozzles on the feed and discharge channels, feed channel 18 promotes. At the end 24 of channel 18

F i E. 14 a side view of the device according to a cooling air inlet 25 and a fan 26 are attached.

Fig. 13,. ordered, which sucks in atmospheric air.

As will be explained in more detail, the hot air is the amount of heat absorbed by the web 12

in a 'cycle. One as clear as possible and thus its temperature change with the For the sake of illustration, no arrangement is shown here, the speed at which the web 12 treats the Moisture removed from the treatment agent, ventilation space passes through. The arrangement is therefore like this otherwise hit by the 5 flowing over the path 12 that the setting of the slide 31 in Hot air is absorbed. However, there will be some correspondence with the throughput speed the air circulating in the hot air circuit takes place continuously along the web 12. To control the railway released to the outside to the moisture speed is the control panel 17 with a to keep content as low as possible * It can be provided for this purpose shift lever 42, which with a Vorricheine Arrangement of branch channels may be provided, io device connected, which controls the movement of the slide which leads to one end 37 of the exhaust duct 19. A drive motor 43 is used for locking and slide the slide 31, 32 with an auxiliary fan to pull off. The connection between two Part of the air are equipped. see the two sliders is such that in each

In order to replace the position of the slider 31, 32 with a constant air gap drawn off by such an auxiliary fan, an inlet in the vicinity or in front of 15 between the two is maintained, the example of the heating device 22, so that in the way the distance between two successive -Hot air system continuously atmospheric air corresponds to the nozzles 28 and 35 so that the can also be introduced. No special control is required for such an auxiliary fan, exhaust nozzles 35, 3SA when adjusting the slide, since a correspondingly changed subdivision into "hot" it is the requirements. can be designed accordingly, “20” and “cold” discharge nozzles, such as the Beso that it works continuously, and the nozzles supplying the desired agent. Thus pulling air supplies. In the side wall of the feed - the nozzles 35 located on the left side of the slide 32 - with channels they are in the longitudinal direction of the device 11 with reference to FIG ^: a heated air in the corresponding treatment zone 25 from. In the same way, pull the extending fork-shaped feed nozzle 28 or 2SA to the right of the nozzles located on the slide 32 via a connecting piece 29. 35 Λ Cooling air, which flows through the nozzles 2SA

As introduced in connection with the other figures on the right-hand side of the slide, closer will be explained, the nozzles 28 have the is.

Openings through which the heating medium against the 30 As one can schematically from F i g. 1 recognizes, the upper and lower surfaces of the web 12 are driven by the drive motor 43 with the slides 31 and 32. A chain 44 and 45 connected in the longitudinal direction of the feed channel, which run together around 18 within the same displaceable shut-off chain wheels 47, which sit on a shaft 48 of the slide 31 divides the channel 18 into two parts, the drive motor 43, and a lower chain , j which one has the heating means from the channel end 21 35 ^{span 46} . In this motor it is and the other the coolant from the channel end is a reversing motor, which takes on a separate, 24, so that all nozzles 28 to the left of that of which the roller drive motors 15 and 16 spei-gate valve 31 with heating medium and all nozzles send power source independent power source attached-28Λ to the right of the slide 31 with coolant in it is closed. As can be seen from FIG. 1, the present case can be fed with cooling air that is present at room temperature, for example, an alternating current source 49 and can be seen that eject the drive motor 43 via the treatment room. For the rapid withdrawal of the control on the control panel 17, while the treatment agent is supplied with a discharge duct 19, a direct current source 51 for the supply of the see, which runs parallel to the duct 18 and motors 15 and 16 with another not shown in the present case directly on the Channel 18 45 control is provided.

is arranged. The channel 19 also has a can at the ends 21, 24 of the feed channel 18

Gate valve 32 and several openings 34, auxiliary gate valves 52 and 53 are provided in order to discharge channel 18 heating or cooling medium, namely which one is connected to exceeding a certain overpressure in the fork-shaped nozzles 35, 35 Λ with the help of a connecting piece 36 correspond to the nozzles 28. In the present 50 then, when the slide 31 and 32 so far in the example, the channel end 37 is used to stand the hot end of one or the other end of the channels 18 and 19 of the exhaust channel 19 with the inlet of the fan that the exit of one treatment agent To connect 23. The channel end 38 of the cold end through the nozzles 28, 28 A is excluded. j of the channel 19 is with the inlet 25 of the fan The position of the slide 31 and 32 within the

26 connected. Instead, an exhaust duct 18 or 19 can always be based on the counter-blower 39 be provided., Speed of the web 12 within the treatment die Track 12 is under tension, so that there is space for the orbital system, so that all parts of the speed change can snap apart when the web 12 stakes a constant heating breaks or gets damaged. To protect the nozzles can. For this purpose there is one on the respective 28, 35 and other parts serves a network or 60 speed web responsive device Protective grille 41, which can be seen partially in Fig. 1, connected to the control panel 17, which is here in over- and preferably above and below the web at a rate per-12 to the web speed foreseeing is. proportional voltage is actuated. One of those The regulation of the heat supply is carried out by means of a voltage corresponding to the one-web speed place the slide 31 in the feed channel 18. As a result, 65 is obtained, for example, from a generator 54 or 54 ″ A certain number of nozzles hot air can be generated, which is sent to the shaft of one of the motors leads, while the remaining number of nozzles 15 or 16 or to one of the rollers, e.g. B. the roller be fed with cooling air. 50, over which the belt 12 runs, is connected,

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The amount of heat absorbed by the web 12 and thus its temperature change with the Speed at which the web 12 passes through the treatment room. The arrangement is therefore like this 5 made that the setting of the slide 31 in accordance with the passage speed the path 12 takes place. To control the web speed, the control panel 17 is equipped with a Shift lever 42 provided, which is equipped with a device

As will be explained in more detail, the hot air
in a 'cycle. As clear as possible
For the sake of illustration, no arrangement is shown here,
removes the moisture from the treatment agent,
the otherwise flowing through the web 12
Hot air is absorbed. However, it becomes a part
The air circulating in the hot air circuit is continuously released to the outside in order to keep the moisture content as low as possible
an arrangement of branch channels can be provided, io device is connected, which initiates the movement of the sliding ice at one end 37 of the extraction channel 19. A drive motor 43 is used to close and slide the slide 31, 32 with an auxiliary fan to pull off. The connection between a part of the air are equipped. see the two sliders is such that in each

A constant distance around the position of the slides 31, 32 subtracted by such an auxiliary fan To replace air, an inlet is maintained near or before 15 between the two, which is exemplary Heating device 22 is provided so that in the wise the distance between two successive hot air systems atmospheric air continuously corresponds to the nozzles 28 and 35, so that the

can be introduced. For such an auxiliary fan, exhaust nozzles 35, 35 Λ when adjusting the slide no special control is required, as a correspondingly changed subdivision into "hot" it can be designed according to the requirements, and experience "cold" exhaust nozzles such as the Beso that it works continuously and the nozzles supplying the desired agent. So pull delivers the highest air content. In the side wall of the feeder - the one on the left side of the slide 32 - with

channel 18 are in the longitudinal direction of the device 11 with reference to FIG. 1 - located nozzles 35 by

several openings 27 are provided, each of which is fed to the nozzle 28 to the left of the slide 31 a heated air in the corresponding treatment zone 25 from. In the same way they pull

stretching, fork-shaped feed nozzle 28 or 2SA located to the right of the slide 32 nozzles

is connected via a connector 29. 35 A cooling air, which through the nozzles 28 Λ

As will be explained in more detail in connection with the other figures introduced on the right-hand side of the slide, the nozzles have 28
Openings through which the heating medium is directed against the 30th
upper and lower surfaces of the web 12 is directed. One in the longitudinal direction of the feed channel
18 within the same sliding gate valve 31 divides the channel 18 into two parts, from
those of the one the heating means from the channel end 21 35
and the other the coolant from the channel end
24 receives so that all nozzles 28 to the left of the
Gate valve 31 with heating medium and all nozzles
28.4 to the right of the slide 31 with coolant in the

present case with an alternating current source 49, for example, at room temperature

Sensitive cooling air are fed and those in the see, which the drive motor 43 via the

Eject treatment room. For the rapid withdrawal of the control on the control panel 17 supplied while

Treatment means is an exhaust duct 19 in front of a direct current source 51 for the supply of the

see which runs parallel to channel 18 and motors 15 and 16 with another one not shown

in the present case is provided directly on the channel 18 45 control.

is arranged. The channel 19 also has a can at the ends 21, 24 of the feed channel 18 Gate valve 32 and several openings 34, auxiliary valves 52 and 53 are provided in order to each with the help of a connector 36 to exceed a certain overpressure in the fork-shaped nozzles 35, 35 Λ are connected to drain channel 18 heating or coolant, namely which correspond to the nozzles 28. In the present 50, when the slide 31 and 32 so far on the For example, the channel end 37 is used, the hot end of one or the other end of the channels 18 and 19 of the exhaust duct 19 are connected to the inlet of the fan, that the outlet of a treatment agent 23 to connect. The channel end 38 of the cold end through the nozzles 28, 28 Λ is excluded. of the channel 19 is with the inlet 25 of the fan The position of the slide 31 and 32 within the 26 connected. Instead, an exhaust duct 18 or 19 can always be based on the counter-blower 39 be provided., Speed of the web 12 within the treatment die Track 12 is under tension, so that there is space for the orbital system, so that all parts of the speed change can snap apart when the web 12 stakes a constant heating breaks or gets damaged. To protect the nozzles can. For this purpose there is one on the respective 28, 35 and other parts serves a network or 60 speed web responsive device Protective grille 41, which is partially shown in FIG. 1 connected to the control panel 17, which are shown here in over- and preferably above and below the web agreement with a pro-provided for the web speed is. proportional voltage is actuated. Such that the regulation of the heat supply is carried out by means of a voltage corresponding to the one-web speed place the slide 31 in the feed channel 18. As a result, 65 is obtained, for example, from a generator 54 or 54 ″ A certain number of nozzles hot air can be generated, which is sent to the shaft of one of the motors leads, while the remaining number of nozzles 15 or 16 or to one of the rollers, e.g. B. the roller be fed with cooling air. 50, over which the belt 12 runs, is connected,

109 615/16

that is.

As one can see schematically from FIG. 1 recognizes, the drive motor 43 with the slides 31 and 32 is through Chains 44 and 45 connected, which run together around sprockets 47 on a shaft 48 of the Drive motor 43 sit, and have a lower chain link 46. This engine is what it is a turning motor connected to a separate one from which the roller drive motors 15 and 16 feed Power source independent power source is connected. As can be seen from Fig. 1, can

9 10

in the latter case the generator at 54 'in front. Side plates 30 can be made of thin sheet metal see is. exist, and the slide plate 80 forms an on the chains 44 and 45 for driving the slide insulating block made of asbestos od. The like. At the ends A contact shoe 55, which is delimited by metal profiles 87, is attached via 31 and 32. Of simplicity Among other things, with limit switches56 and 57 together, the drive motor43 in Fig. 1 acts so that which brought the drive motor 43 to a standstill as if it were directly with the chain drive, once the sliders 31 and 32 have their outermost wheels 47 and the shaft 48 connected. Self-end positions in the channels 18 and 19 on the hot can be understood if necessary, as one can also find out or cold end of the device. 2 and 3 recognizes a reduction gear Furthermore, a switch group 58 with a number of 82 and an intermediate chain 83 with four separate of position switches 59 with switching arms 61 before sprockets 47 be switched on, which on a seen which with -the contact shoe 55 sit together- shaft 90, which through the intermediate chain 83 men act and the slide drive motor 43 is driven.

Bring a stop as soon as the slides 31 and 32 come into contact The rail 55 corresponding to the speed of the web 12 is shown again in FIGS. 10, 11 and 12 are adjusted. This facility is given in the. The contact bar 55 is preferably with individual in connection with the circuit diagram rollers 84 provided on the inside of the web according to FIG. 19 will be explained. a profile rail 85 run, the side flanges The channels 18 and 19 can, for example, partially surround the links of the chains 44 and 45. Metal sheets exist. So that the slide 31 20 the switch group 58 is preferably on one and 32 move easily within the channels 18,19 rail 88 with L-Profü attached, on which in Abkann, they are with the most friction-free bearings as possible, the position switches 59 are mounted, their Mistake. They also have a stiffened switching arm 61 each carrying a roller 86. This role Construction on it to be sure in the correct position cooperates with the contact bar 55, which the hold in channels 18 and 19. How to deflect the arm 61 as soon as the contact bar 55 moves for example from FIG. 4 recognizes, the slide 32 has moved under the corresponding position switch, curved baffles 60 with stiffening flanges The position switches 59 can be commercially available 62 on which switch at one end by means of screws 63, as it is, for example, called Endan a slide plate switch reinforced with side plates 30 is used.

80 connected and the other ends 64 of which are connected to the rail 88 carrying the switch group 58

Stiffener bent triangular in cross section and below one of the angle rails 73 for receiving

attached to the bottom of the slide. the slide 31 and 32 mounted so that the to

The ends of chains 44 and 45 attached at a distance from one another, sliders 31 and 32, respectively

arranged longitudinal rails 65 and 66 are means in alignment with the chain ends, which are on the

Rods 69 are each attached to the formation of carriage for 35 contact bar 55, as can be seen from the

the slides 31 and 32 connected to one another. The F i g. 2 and 11 recognizes. The chains 44 to the process

The carriage is provided with rollers 71, which are a little closer to each other in those of the slide 31.

Longitudinal rails 65 and 66 attached bearing blocks 72 arranges as the chains 45 for adjusting the slide

are mounted. At the bottom of the channels 18 and 19 are 32 so that the chains 44 and 45 side by side

each angle rails 73 for receiving the rollers 40 continuously form a lower chain strand 46, which in the

71 is provided, as can be seen from FIG. 6 recognizes. The profile rail 85 runs. .

Slide plates 80 are on the longitudinal rails 65,66. As can be seen from FIGS. 3 and 15, the

in a suitable manner, for example via flanges 67 of the exhaust duct 19 and the feed duct 18 to one

and 68 attached, which are combined for reinforcement on the slide unit, which on stands 89

plate screwed on or resting in another suitable manner 45.

are attached. As can be seen in detail from FIG. 9, a welded joint is one of the following Rod 69 with one of the longitudinal rails 66 is in the top cover and the side walls of the shown individually in FIG. 7. How to make a special flue 19 from a sheet of metal92, This is clearly seen from FIG Rail 66 welded a nozzle 74, which fastened 50, which are bent inward and to aufeinen Part 75 having less strength. The latter would serve the wagons carrying the gate valves, has a receiving opening 76 for producing one as can be seen from FIG. The details in Connection to the chain 45 by means of a chain F i g. 8 flexible seals 78 shown link pin 77, as can be seen from FIG. 4 recognizes. An extend to the surface of the metal earth Ends of the other longitudinal rails 65 are sheet metal 92 in 55.

the same way the free ends of a second The bottom of the flue 19 consists of Chain strand 45 attached so that the parallel in a plate 95, which with the angle rails 73 Spaced chains 44 or is connected and rests on an insulating plate 96, 45 the slides 31, 32 lead in the channels 18, 19 which in turn rests on a plate 97 that and move without tilting. 60 corresponds to sheet 95 and the top cover It is also a flexible seal for the supply edges located under the exhaust duct 19 the gate valve within the channel 18 forms channel 18. The walls of the channel 18 from or 19 provided. As can be seen from FIG. 8, a sheet metal plate 98 also corresponds to the rest For example, several flexible seals of the channel 19. To enclose the insulating genes 78 at the protruding ends 79 of the side 6g plate 96 and for connecting the metal sheets 95 and 97 Sheet metal 30 of the slide plate 80 with screws 81 are provided on the outside of profile strips 99. One recognises, attach. The seal 78 can be made of heat-resistant material in the lower corners of the feed channel 18 digem material, such as asbestos. The similar angle rails 73, as shown in Fig. 11,

are seen, both to reinforce the lower edges of the channel 18 and to accommodate the Carriage for the gate valve 31 and for protecting the sheet metal 98 against abrasion by the chain 44 serve. The rail 88 receives the position switches 59 and is itself attached to the stands 89. However, it can also be attached to separately depending beams 101, which are welded Od. The like. Are connected to struts 102 which are attached to the uprights 69 for receiving the channel structure are connected. A similar one, the chains 44 and 45 and the trigger bar 55 carrying Angle brace 103 is attached to the uprights 89 for receiving the channel 85. 'An idea of the proportions between the treatment room and the canal construction 18 and 19 result from the plan view according to FIG. 13, the nozzles 28 and 35 are only indicated by dashed lines within the treatment room, while the connecting pieces 29 and 36 from FIG. 13 can be seen well. Of course, if necessary, a larger number of nozzles can be used than in FIG. 13th is shown, in which the construction is pushed together in the longitudinal direction to the drawing as to simplify the process. In addition, in the schematic illustration according to FIG. 1 ; the nozzle spacing increases so that the total number of nozzles is not displayed ί could.

As one can see from FIG. 14 recognizes, the treatment room has walls 104, which consist of a heat j resistant insulation material. At the furnace ί there are preferably hinged flaps 106 on the floor ί provided so that one has access to the treatment room, in which case the protective grille 41 (Fig. 18) serves to accommodate the operator when they enter the treatment room.

A preferred embodiment of the fork-shaped supply and suction nozzles 28 and 35 is shown in FIGS 15, 16 and 17 reproduced. Any feed nozzle 28 consists of the connecting piece 29, of which an upper and a lower leg 107 or 108 goes out. In the walls of the legs 107 and 108 there are openings facing one another provided, which make up the heating or cooling means against the upper and lower surfaces of the web 12 is judged. If necessary, these walls can have protruding, spaced-apart walls Ribs 109 and 111 may be provided so that two elongated narrow openings 112 and 113 above and arise below the web 12. It can be seen that the lower leg 108 of the feed nozzle 28 in the horizontal direction and transversely to the longitudinal direction of the feed channel 18 and approximately at the same height extends with this, while the part of the opening 29 to which the leg 107 is connected to runs at the top, as a result of which the upper leg 107 is approximately at the same height as the exhaust duct 19. In the case of the suction nozzle 35, the lower leg 115 closes on a part which is curved downwards of the connecting piece 36 so that it is level with the feed channel 18. In this way are the upper and lower legs of the alternately arranged one behind the other in the direction of the web Feed and suction nozzles in alignment with one another, as can be seen from FIG. 15 and from FIGS. 1, 14 and 18 recognizes.

18 shows the treatment room in detail with the stands 116 arranged at the ends and with intermediate stands 117 and with openings 118 and 119 for the entry and exit of the web 12. The protective grille 41 is attached to brackets 123 and 124 or 125 and 126, which are located in the vicinity of the End walls 121 and 122 are mounted.

In Fig. 19 the device, in particular the treatment room, is shown only schematically, to simplify the representation of the electrical circuits. It is only the feed channel 18 with the slide 31 is shown, since the slide 32 via the chains 44 and 45 mechanically with the Slide 31 is connected and is thus driven by the same motor 43 as the slide 31.

For the sake of simplicity, only one roller drive motor 16 for the draw roller 14 is shown in FIG. 19. The speed control for the motor 15 according to Fig. 1 can in any way, take place for example by means of control arms which are arranged such that either a certain Speed ratio to the motor 16 or a certain tensile force set within the web is. Preferably there are separate and independent power supply sources 49 and 51 for the drive motor 43 and the motor 16 and thus also for the motor 15 use. To simplify the presentation the motor 16 is reproduced as a direct current motor, since it is a direct current motor a more precise speed control can be achieved without further control devices. Consequently the power source 51 is a DC power source. The speed control for the motor 16 takes place by controlling the field current. A shunt field winding 127 is provided which connects to the power source 51 is connected via a field rheostat 128 with a movable tap 129, which is mechanically connected to the shift lever 42. The electrical circuit for the motor 16 leads from the power source 51 via a conductor 131, the armature of the motor 16 to a conductor 132, a relay holding coil 133, a pair of normally open contacts 134, a pair of normally closed contacts 135 back to the direct current source 51. The branch circuit for the field winding 127 leads from the line 131 via winding 127 and the rheostat back to conductor 132 so that field winding 127 is always excited when the armature of the motor 16 is excited.

To start the engine 16, a push button contact 136 is provided, which is normally the open contacts 134 closes. For stopping the motor 16 and for switching off the entire device A push button contact 137 is used, which connects the circuit to the normally closed contacts 135 interrupts. In order to maintain the flow of current through the motor 16 after it has been through Depressing the push button 136 is left, normally open contacts 138 are provided, which are mechanically connected to the armature 139 raised by the relay holding coil 133 when the current flows through this coil when the pushbutton contact 136 is depressed. A movable contact 141, which is a pair, is also connected to the armature 139 stationary contacts 142 close when coil 133 is not energized and a pair of stationary contacts

13 14

closes when coil 133 is energized and armature up to and including 179 are designed so that it

139 is raised. on progressively larger values of the

With a shaft 146, which address the shift lever 42 speed of the web 12, which be and carries the field rheostat tap 129, voltage values for the switch group 173 are consistent clock arm 144 of a direction relay mechanically correspond to 5. This is preferably done by a bound. A sliding coupling 145 is between the shaft 146, which is schematically reproduced from the shaft 146 and the voltage generating generator 54, the switches Schemaxically reproduced wave 146 and the 174 to 179 have the form of contact voltmeters, Contact arm 144 is provided so that the contact is arranged one behind the other progressively arm 144 depending on the direction in which the switching io higher voltage values are set. Consequently lever 42 is moved, with one or the other included the switches 174 to 179 inclusive A pair of fixed contacts 147 and 148 engage the voltage responsive windings 181, 182, comes. . . 183, 184, 185 and 186, respectively, all parallel and with

The direction of rotation of the drive motor 13, which with the aid of a pair of conductors 187 to the generator

for example a three-phase or alternating current motor, 15 54 are switched on.

is reversible. To simplify the illustration, for connection to the AC power source 49 if he has a single anchor according to the drawings, a pair of clamps 188 and 189 is used and a pair of oppositely wound Feldwick forward circuits for the pusher motor 43 leads from lungs 151 and 152, so that the direction of rotation of the AC terminal 189, the terminal 154 over of the motor 43 can be selected by moving the armature of the motor 43 to the terminal 153 through Current through one or the other of the two winding the forward field winding 151, a conductor 191, Lungs 151 or 152 depending on the normally closed contacts 161 of the advance direction of the shift lever 42 can flow. For upward limit switch relay 55, a conductor 192, the Simplification of the illustration is a series connection forward contact 147 of the direction switch on the engine reproduced. It is possible for the motor 43 25 shaft of the shift lever 42, the movable contact each Use a suitable type of motor. However, arm 144, a ladder 193, is usually closed “Normal three-phase induction motors as its contacts 162, a conductor 194, the more normal ones Satisfactory for the rapid drive wise open contacts 143, which when running the slide proved. In the reproduced engine 16, however, are closed, and a conductor Circuit have the windings 151 and 152 a 30 195 back to terminal 188 of the alternating current common Terminal 153, which is used as the anchor terminal of quelle 49.

Motor 43 is used. The other anchor terminal is on the other hand, there is a return circuit for the

154 to be recognized. . Slide motor 43 from terminal 189 to the

To bring the motor 43 to a stop when anchor terminal 154, over the motor armature, the the desired slide position is reached, or 35 terminal 153, the return field winding 152, one when the gate valves come to one of the ends of the conduits ladder 196 which is normally closed are control relays 155, 156 and 157 with clocks 163 of the return limit switch relay 157, the Windings 158, 159 and 160 are provided, which conductors 197 and 198, the reverse drive contact 148 normally closed contacts 161, 162 or of the contact arm 144 and the conductor 193 through the Press 163. The limit switches 56 and 57 are 40 including the normal circle indicated above As can be seen from Figure 19, normally open closed contacts 162, conductor 194, the Kon switches with switching arms 61, which from the contact bar 143 and the conductor 195 back to the terminal 188. Rail 55 for closing the switch contacts 56 when the roller drive motor 16 is de-energized or 57 are detected as soon as the contact bar 55 and no current flows through the coil 133, so that one of the extreme positions of the sliders 31 and 32 45 the movable contact 141 the fixed contacts 142 corresponding limit position reached. closes, another return circuit is created or.

The switch group 58 of the position switch 59 fail safe circuit. This is used for quick contains one of the desired accuracy of the control method of the slide 31 to the extreme hot corresponding number of switches. For the end of the channel 18 so that the nozzles do not have any hot purposes the illustration shows six normally 50 more air being supplied and so the overheating open switches 164, 165, 166, 168 and 169 are avoided if the motor 16 stops, the one common terminal 171 and each stand comes. The fail-safe circuit leads from have a switching arm 61, the in question of the terminal 189 to the anchor terminal 154 via the The coming switch closes as soon as the contact armature, the connecting terminal 153, the return rail 55 runs under it, as it does in the 55 field winding 152, the conductor 196, the closed Drawing with switch 167 closed, contacts 163, conductors 197 and 199, which are normally reproduced is. wise closed contacts 141 ujid 142 and the

The switches 164 up to and including 169 are forward conductor 195 back to terminal 188 of the alternation mounted in housings, as in the co-current source 49.

connection with the switch group 58 in Fig. 10 60 If the sliders 31 and 32 "forwards" in their

and 11 is shown. In series with the controls, outermost position on the cold end of the device

Switches 59 are each to be moved on certain, the contact bar 55 lifts the

Switch 173 responsive to voltage values, the nor switch arm 61 of the forward limit switch 56, the

times are closed and in their number switch 56 is closed and a circuit of the

the number of position switches in switch 65 AC terminal 188 via conductor 201

group 58 correspond. As one can see from the drawing the then closed switch 56, a conductor 202,

detects, the switch group 173 contains the switches the winding 158 of the relay 155, a conductor 203,

174, 175, 176, 177, 178 and 179. The switches 174 take one conductor 204 back to the other ac

15 16

terminal 189 is closed. With an excitation that increases, the low voltage coil 186 becomes the first Winding 158 will open the normally energized position switch 179, causing its conclusions Contacts 161, whereby the forward clock is opened and no circle is created when circle of the motor 43 between the conductors 191 and the contact bar 55 under the switching arm 61 of the 192 is interrupted and the motor 43 reaches the standstill 5 position switch 169, stand comes. If, on the other hand, the sliders 31 and If, however, the sliders 31 and 32 make their way 32 continue in the opposite direction "back" to the other and the outermost to chains 44 and 45 At the end of the device, the closed contact bar 55 continues to run If the contact bar 55 reaches under the switching arm 61, it reaches a position that corresponds to a predetermined speed Reverse limit switch 57, so that the switch io speed of the roller drive motor 16 and one decontact be closed and a circle on the speaking speed of the generator 34 development 160 of the return limit switch relay 157 speaks. A contact voltage is created at this speed. This opens the contacts 163. meter or a voltage coil in groups 181 and the return circuit of motor 43 is mapped through to 186 operating at that speed Winding 152 between conductors 196 and 197 takes too little voltage under- 15 to the normally broke. A circle is created over the winding 160 to be able to open closed contacts. If the from the terminal 188 via the conductor 195, the conductor contact bar 55 reaches this position, takes place animal

205, the then closed switch 57, the conductor next switching operation of the motor 43. The voltage

206, the winding 160, the conductor 207 and the conductor coils 186 and 185, for example, still have one 204 to the second alternating current terminal 189. 20 receive sufficient voltage to activate the switches 179

As soon as the contact bar 55 can open in one and 178. This tension should or moves in another direction, it runs under which is not enough to also move to the next Switching arms 61 to one or more position switches for higher voltage set voltage coil 184 Press 164 to 169 inclusive. Their contacts 177 therefore remain active For example, the contact bar 55 25 closed.

forward, d. H. to the right in the drawing, in the As soon as the contact bar 55 under the switching arms Moved position shown in Fig. 19, the 61 of the position switch 167 is reached, that of the span position switch 167 closed. Then when the voltage switch corresponds to 177, the switch 167 becomes The speed of the web 12 is such that it decides. It is thus via the switches 177 and speaking voltage switch 177 remains de-energized, 30 167 a circuit is closed, which was described above a circle across the relay winding 159 of the digits, and for energizing the voltage switch relay switch closed. Such a circle leads from lais 156 as well as to the opening of the contacts 162 and to the the terminal 188 via the conductor 195, the conductor 208, stopping the motor 43 is used. As a result, stay the normally closed contacts 177 of the slide 31 and 32 in the position now reached. Voltage coil 184, if this is de-energized, the 35 The voltage sensitivity of the coils 181 bis Head 209, the then closed switch 167, the 186 is each in a corresponding position of the Conductors 211 and 212, the winding 159 of the position slider tuned to get proper heating for switch relay 156 and the conductor 204 back to the progressively higher transmission speeds of the AC terminal 189. If thus a co-path 12 can be achieved. As a result, the supplied The corresponding switch pair in the switch groups 40 heat regulated so that the web 12 in the required 58 and 173 is closed, the relay 156 is heated to the required level stimulates and opens the normally closed contraction with subsequent deterrence by the cycles 162 and interrupts the circuit to motor 43 coolant without overheating and damaging the between conductors 193 and 194 as soon as the whale yields material.

Zen drive motor 16 is running and the contacts 142 are 45. The contact bar 55 is so long that it is so long are open. remains under the respective switching arm 61 until the following describes how the slide motor 43 comes to a standstill. Preferably has 31 and 32, however, corresponding to that for the heat treatment, the contact bar 55 is of such a length, development required heating of the web 12, d. H. that the next position switch at least then accordingly the throughput speed of the goods is closed by 5 ° if the previous one is set during the through-setting will. As soon as the motor runs down in one direction or the other by the rail running down pressing the starter button 136 is cranked has been released.

the switch lever 42 moves to the left, so that the If you want to increase the web speed, the field rheostat tap from the "slow" position on the switch lever 42 is moved further to the left. With one end of the rheostat 129 moving, thereby increasing the speed of 55 increasing the speed also decreases the direction switch 144 on the contact now; of the generator 54 to. The voltage switch applies. In this way, the so-called 177 opens when a certain forward voltage circuit is reached via the forward field winding 151 of the value, and the slide and the contact bar 55 motor 43 are closed and the motor 43 starts moving again until the slide position causes the slide 31 and 32 in which the 60 is reached. the forward direction indicated by arrow F for the new path speed in channel 18 speaks. If you want to shift the speed of the web 12 j or 19 into positions in which to reduce and move the lever 42 to it progressively more openings 27 or M free right, then the front contact 147 is opened, give and on this The hot air supplied, the contact 148 is closed, increasing the amount of voltage. As the speed increases, the contact 178 drops out and the motor 43 settles in the speed of the motor 16 and the speed of the generator 54 in the opposite direction increases, so that the voltage increases. As soon as the contacts, which are opened manually, move the voltage via a predetermined minimum value switch 167 or 177, the slide 31 and 32 in the dei

109615/16

17 18

in the other direction until the contact bar 55 contains two sets of relays that are switched in this way has come. This movement lasts due to the fact that only one sentence can be excited at a time, Then actuate the voltage switch until the If the control of the roller drive, example contact rail 55 has arrived in a position, a push-button control is set so which corresponds to the new position of the shift lever 42. 5 that the speed increases, then excites the Thereupon the slide 31 and 32 come again electrical lock and the forward drive mechanism Quiet, however, are closer to the hot lais. of the drive motor 43 as well as the speed end of the channel 18, so that there is a sufficient compaction increase relay in the control circuit for the roll reduction the heat supply is guaranteed and the drive motor. If on the other hand the tax with it damage to the slower movement is set in such a way that the speed decreases Lane 12 is avoided. You can see that takes, then the return relay is energized, the simplified circle according to FIG. 19 is suitable for So that the slide can be opened quickly and within a

The control of the setting of the slide 31 and 32 correct route come to a standstill, after the drive motor 43 has been de-energized in accordance with the speed of the drive motor 43, web 12 and thus an automatic adjustment in 15 of the slide motor 43 is preferably with a sole view of increasing web speeds equipped with an eroid brake. For example, it can be made possible. A full automatic system in both directions, if necessary a standard motor, can be used according to the principle explained with reference to FIG. These brakes have a F i g. 22, which will be described in more detail later 20 manual adjustment with which the braking effect will be changed. can be. As in connection with the tax

If the motor 16 was explained by actuating the pressure circuit for the gate valve, has button 137 or, as a result of a fault in the power supply, the contact bar 55 for actuating the switching source 51 is to be brought to a stop, arm 61 for the position switch or limit switch The contacts 141 and 142 ßen the relay 133. Below 35 a considerable length, namely, these as possible Under certain conditions, the motor 43 continues to run at approximately twice the braking distance of the slide reverse direction until the slide 31 is so far. This braking distance is determined by setting the has moved to the left as possible, so that he is determined to lock, brake on the motor 43, borrowed the limit switch 57 operated. In this position, although rotated for purposes of illustration all nozzles supplying hot air switched off, but counting control for the roller drive motors is the hot air blower 23 as a result of which has been written in which a field current at Overpressure opening auxiliary slide 52 is used between control, the invention includes the the ends 37 and 21 of the channels 18, 19 do not over-use of controls, in which weighs which the movement of the hot air parallel to the tension on the armature of the roller drive motor the channels 18 and 19 when lifting the parallel 35 is changed. Such controls are commonplace 53 allowed (not recognizable in FIG. 19 used, except for facilities with a nen). Roller, which is supposed to deliver a constant tension,

To simplify the representation in the drawing there is a weakening of the armature current and a decrease in the The speed-tensile stress was caused by the explanations and explanations.

keitssteuer for the roller drive motors as 40 The slide switch lever described in the present case 42 in connection with a field rheological control system can be used in connection with various states 129 reproduced. In addition, those systems were used to control the ratio of the two Reverse circuit for the drive motor 43 see the input and output speeds, which consists of a slip clutch 145, use speed of the web. For easier explanation which the shift lever 42 with a movable 45 tion should be assumed that the roller contact arm connects that with the directional drive motor 15 on the input side with a contacts 147 and 148 cooperate. You can also use a constant speed for a given position of the Another type of speed control for the shift lever 42 is driven. Then at Roller drive motors and a mechanical or a control system in which a constant tensile electrical The lock between this control unit and the tension in the running web are maintained Devices using contacts 144, 147 and 148, will set the speed of the web up which control the direction of the drive motor 43, on the other side of the device pull out turn. For example, you can control the setting roller motor 16 by having a Development of the web speed a rheostat motor maintains a predetermined armature voltage. This provide that the current in one or the other direction of rotation receives a value that corresponds to the desired value device to change the field current of the rollers to a predetermined tensile stress guaranteed. Because that Drive motors driven and simultaneously with the motor torque is a function of the armature slide motor 43 is actuated. It is the three-phase current.

direction of the rheostat motor in such a way that the

The number of the roller drive motor increases when the tension is controlled by the stretch The slide motor 43 rotates in such a direction that the desired stretching of the web is obtained the number of nozzles supplying hot air increases, 12 achieved by using electric tachometers and vice versa. on the shafts of both roller drive motors 15

It can be seen that such a lock is also used at 16 and 16, which has a constant predetermined one Three-phase valve drive motor with reverse 65 th ratio between the voltage outputs of the luufanschlüsscn can be provided. maintains both speedometers. For example

Any mechanical or electrical lock can be used on the voltage output of any speedometer. For example, an electrical lock can be offset against a different control value,

the difference in the control values corresponding to the desired stretching.

If instead of that in connection with FIG described operating state of the drive motor 43 is to run in the opposite direction of rotation as soon as the switching arm 42 is moved back to a lower speed accordingly, the Arrangement according to FIG. 22 use.

As with the arrangement of FIG. 19, if the motor 43 is to come to a stop as soon as the desired slide position has been reached or as soon as the slide has reached its end positions in the channels have reached control relays 155,156 and 157 with windings 158, 159 and 160 to operate the normal

and conductor 195 back to AC terminal 188.

When the roller drive motor 16 is de-energized and no current flows through the coil 139, so that the

Störangssicherungskreis according to Fig. 22 closed. This is used to reset the slide 31 in the extreme left position in channel 18, in which all nozzles

154 via the armature of the motor 43 to the connecting terminal 153, the forward field winding 151, the conductor 149, the normally closed contacts

161, the forward limit switch relay 155, one conductor 218, the normally closed contacts

162, the forward position switch relay 156, a conductor 192, a contact 147, the contact arm 144, a conductor 199, the contacts 143, which are closed once the relay 133 is energized, and the conductor 195 lead to AC circuit terminal 188.

As shown in FIG. 19, there is a "return circuit" for the Motor 43 from terminal 189 to armature terminal 154, through the motor armature, the field connection 153, the return field winding 142, a conductor 196, the sometimes excluded contacts 161, 162 and 15 normally closed contacts 163 of the return

163 provided. In this arrangement, the normal limit switch relays 157, conductors 197 and 217, normally closed contacts 162 of the positional the normally closed contacts 215 of the switch relay 156 in the loop of the forward winding reverse position switch relay 213, the conductor 216, 151 of the motor 43 instead of the common terminals 148, the contact arm 144, the conductor Finally turned on to the contact arm 144. A to-20 199, the normally closed contacts 143 Additional position switch relay 213 is used to control the return direction. This relay has

an actuation winding 214 and a pair of normally closed contacts 215 connected through conductors 216

and 217 in series with the return field winding 152 25 movable contact 141 the fixed contacts 142 are connected. After the limit switches 56 and 57 closes, the AC return circuit or F i g. 22 are normally open switches with
Switching arms 61, from the contact rail 55 to
Closing the switch contacts 56 and 57 are detected when the contact bar 55 one of their end 3 ° are switched off from the hot air supply, so that a position of the gate valve corresponding end overheating of the web 12 is avoided if the position is reached. The position switch group 58 ent- motor 16 has come to a standstill. The retainer holds several switches, depending on how precisely the running or safety circuit leads from terminal 189 to the desired position. According to the drawing, the armature terminal 154, through the armature to the sixth normally open switch 164, 165, 166, 35 connection terminal 153, to the return field winding 152, 167, 168 and 169 with a common terminal via the conductor 196, the closed contacts 163, 171 and respectively its own switch arm 61 is provided, which close the switch as soon as the
Contact bar 55 passes under the corresponding switch arm. This state is the 40
closed switch 167 to recognize. The switches

164 to 169 are mounted in housings, such as those in connection with the switch group 58 according to FIGS. 10 and 11 were explained and reproduced.

Located in series with the position switch group 58 a group of switches 173 responsive to certain voltage values, which in the case of the F i g. 22 comprise several double switches 174 to 179, the number of which corresponds to the number of position switches in group 58 corresponds. As can be seen from the drawing results, each double switch has both normally open and normally closed Contacts on. According to Fig. 19 are the switches

174 to 179 constructed so that they are to be moved to their extreme end position in increasing values of the speed in the opposite direction as a result of advancing slides 31 and 32, the contact rail comes under the switching arm 61 as the voltage increases accordingly address the values. This is preferably done by means of return limit switch 57, whereby the switch cone a generator 54 and by the fact that the switching clocks are closed and a circuit over the ter 147 to 179 in the form of contact voltmeters from winding 160 of the return limit switch relay. 157 forms, each of which arises on a progressively higher level. This will set the normally closed tension. As a result, the
Switches 174 to 179 voltage sensitive windings 181 to 186, all of which are connected in parallel
and 65 runs in the other direction through a pair of conductors placed on the generator 54, it runs under the switching arm

conductors 197 and 219, which are normally closed Contacts 141 and 142 and conductor 195 back to terminal 188 of AC power source 149. When the slides 31 and 32 are moved into the end positions of their forward movement, lifts the contact bar 55 the switching arm 61 of the forward limit switch 56, causing switch 56 to close and a circuit from the AC terminal 188 via the conductor 201 to the then closed switch 56, a conductor 202, the winding 158 of relay 155, conductor 203, conductor 204 back to AC terminal 189 closed will.

When the winding 158 is energized, the normally closed contacts 161 open, whereby the forward circuit of the motor 43 between the conductors 191 and 218 is interrupted and the motor 43 is brought to a standstill. On the other hand, if the

sene contact 163 lifted and the return circuit interrupted.

If the contact bar 55 in the one or

A "forward loop" for the pusher motor 43 can go from the AC terminal 198 to the terminal

61 one or more position switches 164 up to and including 169 through. If the contact bar is, for example, forward or in relation to

Moving the drawings to the left to the position of FIG. 22, the position switch 167 is closed. Then, when the speed of the web 12 is such that the corresponding voltage switch 177 remains de-energized, a circle is made over the Position switch relay winding 159 closed. This circuit leads from terminal 188 over the conductor 195, the conductor 22, the terminal 171, the conductor 211, the then closed switch 167, the conductor 209, the normally closed contact 221 of the voltage double switch 177, the conductor 203, the Conductor 212, winding 159, conductor 204 back to the other AC terminal 189. If so any associated pairs of switches in switch group 58 and 173 are closed should be, relay 156 is energized and opens normally closed contacts 162 and breaks circuit to motor 43 between conductors 218 and 192 when the roller drive motor 16 is running and contacts 142 are open. The sliders 31 and 32 are in accordance with the desired heating of the web is set as follows:

As soon as the roller drive motor 16 is started by pressing the starter button 136 is, the shift control lever 42 is moved to the left to the field rheostat tap 129 from the "slow" end of the rheostat 128 so that the contact 144 pivots to the contact 147. In this way, the forward circuit via the forward field winding 151 and the motor 43, such as described above, closed, and the motor 43 starts.

The latter then moves the slide 31 and 32 in the forward direction indicated by the arrow F along the channel 18 and 19, respectively, into the positions in which several of the openings 27 are gradually opened in order to increase the supply of hot air in this way. At the same time, as the speed of the motor 16 increases, the speed of the generator 54 increases, so that the voltage increases.

As soon as the voltage reaches or exceeds a value above a certain minimum value, the low voltage coil 186 is energized and the normally closed ones open Contacts 223 of voltage switch 179. As a result, no circuit is completed when the trip bar 55 passes under the switching arm 61 of the position switch 169. However, there the slide 31 and 32 continue to run and also the contact bar connected to the same chains 44 and 45 as this one. 55 continues to run, they reach a certain speed of the roller drive motor 16 and position corresponding to a corresponding speed of the generator. For this speed there is a Contact voltmeter or a voltage coil in group 181 to 186, for unlike others upstream coils the voltage is insufficient to lift the normally closed contacts. If.therewith the contact bar55 the corresponding When the position is reached, the next switching process takes place. For example, the voltage coils 186 and 185 should still have sufficient voltage Record their actuation to the normally closed contacts of switches 179 and 178 to to open. However, it is assumed that the voltage available for the next higher Voltage set voltage coil 184 is insufficient to operate the switches. Therefore the normally closed contacts 221 of switch 177 remain closed.

When the contact bar 55 under the switch arm 61 of the voltage switch 177 corresponding Position switch 167, the switch 167 closes. In this way, the contacts 221 and switch 167, previously described, a circuit for energizing position switch relay 156

ίο and closed to open contacts 162, and the motor 43 comes to a standstill. As a result, the slide 31 and 32 remain in the position in which they have been moved by the motor 43.

The switching voltages of the coils 181 to 186 are in accordance with the respective positions of the gate valve matched that the correct heating even at progressively different speeds the path 12 takes place. As a result, the heat supplied to the web is always such that the required heating of the web 12 takes place, so that the desired stretching and subsequent Quenching without overheating and thus damage to the material is guaranteed.

The contact bar 55 is so long that it takes as long remains under the switch 61 in question until the motor 43 has come to a standstill. Should the speed are changed, the shift lever 42 is moved further to the left. With increasing Speed increases the voltage of the generator 54, and the normally closed Voltage switch contacts 221 open. The slide and the contact bar 55 are in Movement is set until the slider position required for the new speed is reached, whereby exact temperature conditions on web 12 are obtained again. On the other hand, if you want speed the path 12 and if the shift lever 42 is moved to the right, then opens the forward contact 147, the contact 148 is closed, and the motor 43 remains in the opposite Direction in motion, whereby the slides 31 and 32 are moved in the other direction. This movement continues until the contact bar 55 has reached a voltage switch, which at reduced Speed and thus reduced voltage of the generator 54 according to the new position of the shift lever 42 remains energized. The slides 31 and 32 then come to rest again, however closer to the hot end of the channel 18, so that a corresponding reduction in the heat input is achieved and thus damage to the slower moving web 12 is avoided.

If, for example, in the case of the one shown in FIG Arrangement of the gate valve and the contact bar 55 when the motor 43 is running back in the move in the other direction, the contact bar 55 moves to the right and reaches the position switch 168. It should be assumed that the The voltage of the generator 54 has not dropped so far that the winding 185 of the voltage-sensitive Double switch 178 releases the normally open contacts 224. As a result, as soon as the switch 168 is closed by the contact bar 55, the circuit between the conductors 225

and 211 closed. This energizes the flyback relay winding 214, which is normally closed Contacts 215 are opened, and the circuit through the return winding 152 of the motor 43

23 24

will be interrupted. The circuit for exciting the wick is and that you put tachometer relays in between

treatment 214 can be via the elements 189, 204, 214, 226, can. If necessary, for example, the

225, 224, 168, 211, 171, 222 and 188 lead. Switches 174 to 179 including power relays

Be the normally closed contacts 215 which are driven by tachometer relays or contact tachometers in which between the stationary return meter indicators are controlled. How to get out

contact 148 of the contact arm 144 and the conductor Fig. 23 recognizes, the generator 54 is via conductor 187

197 lying part of the connections to the rear connected to a contact tachometer indicator 241-

winding 152 switched on in order to operate the sen. For each of the relays 174 through 179 inclusive

Safety contacts 142 do not disturb. If that is according to fig. 23 a separate speedometer indicator Motor 16 is provided by pressing the push button 137 io 241, but only one of these indicators is

turned off or reproduced as a result of a fault in the line ren in Fig. 23, which is switched so as to

51 is to be brought to a stop, that he actuates the relay 178, which is after the Contacts 141 and 142 of relay 133 closed. Drawing is in a state in which the As a result, regardless of the position of winding 185 is energized, it runs.

Contact bar 55 or the state of the position 15 The contact tachometer indicator 241 contains a switch of group 58 or the voltage switch pair of fixed contacts 243 and 244, of which at in group 173 or the effect of the winding speed changes depending on the extent j gen 155, 159 and 214 of the position relay is activated when one of the changes is made, ; Interruption of the power supply to the roller drive and a switching element 245 for producing the contact motor 16 the drive motor 43 for the slide 20 tes with one or the other fixed contact 243 continue in the opposite direction until the slider or 244 is corresponding to that shown in the diagram at -31 has moved as far as possible to the left, where he interpreted device 246 applied value of the finally the limit switch 56 is actuated. When the voltage across the conductor 187 and the gene limit switch 56 closes, the winding 155 is erator 54 is switched on.

stimulates and opens the contacts 161, whereby the reverse. For the purposes of the illustration, the power circuit via the winding 152 of the motor 43 sub-relay 178 is a low-voltage break in this case will. Direct current relay that is operated by a low voltage In this position, all hot air supplying direct current sources are, for example, a rectifier Nozzles turned off, but the fan 23 248 is energized. The rectifier 248 includes one as a result of the automatic opening of the auxiliary slide 30 primary winding 249 connected to the alternating current source

52 is connected between the ends 21 and 37 of the channels 18, 19 49, and output terminals 250, the not overloaded. This auxiliary slide enables the stationary con-

If the hot air passes to the channel 19, clocks 243 or 244 of the indicator 241 are located. The construction of the auxiliary slides 52 and 53 is a power relay 178, according to the drawings, as shown in detail in FIG. As one can see on ₃₅ pairs of stationary holding contacts 253 and 254, which can be seen from this figure, each auxiliary slide with a movable contact 255 together comprises a slide plate 231 which is journalled at the edge on a pivotable shaft 232 which, with the contacts being normally open, is supported In the stationary contact 224, a second vicinity of an edge of an opening 233 in the common stationary contact 256 and a movable contact cooperate with the horizontal wall 96 (FIG. 9) of the channels 40 257, which are normally 18 and 257 19 is mounted and these are normally open contacts. With the movable connector. The slide plate 231 is so large that at 257 a pair of stationary contacts interacts their edge 234 approximately over the length of the corresponding 258 and 259, the normally closed edge 235 of the opening 233 extends. So sen are. The power relay winding 158 has the plate 231 normally rests on the bar which is connected to the 45 terminals 261 and 262, over which a shunt edge 235 is formed and closes the opening resistor 263. The clamp 261 is hole 233. To prevent the plate 231 from being prematurely lifted to the movable contact via a conductor 264, an arm 236 with the indicator 241 mounted thereon can be connected and the clamp weights 237 attached to the shaft 232 its 262 is via conductors 265 and 266 to the stationary (Fig. 21). The arm 236 can be arranged so that the "slow" contact 244 of the indicator 241 is such that the weights 237 are placed on the plate 231. In order to establish a holding circuit, a current gravity is to be reinforced. The torque of the limiting resistor 267 between the terminal 261 weights 237 is dimensioned so that the resulting power relay winding 185 and the fixed holding closing pressure are switched on to a pressure on the plate tekontakt253, the fixed holding 231 corresponding to that Exceeds what 55 contact 254 via a conductor 268 on the stationary under normal circumstances is required for the supply of hot-air quick contact 243 of the speedometer relay 241 to the supply nozzles. is laid.

One can also use the arm 236 and the weights is the speed of the moving web

237 as counterweights of the plate 231, such as 12 so large that the tachometer 54 a voltage

it is shown in Figs. On 60, which exceeds that to which the Tacho-

This way, a comparatively low pressure meter indicator 241 is set, then the swings

required to lift the slide plate 231. Switching element 145 of the speedometer indicator 241 after

To simplify the illustration, the right is displayed and comes with the stationary contact

nerator54 according to FIGS. 19 and 22 directly at 243 in contact. As a result, an equal

the windings 181 to 186 inclusive of the span 65 circuit closed by the DC terminals

voltage or speed switch 174 to a 250 via the conductor 251, the stationary contact

finally 179. It goes without saying, however, that 253, the movable contact 245 of the speedometer

The invention is not limited to this arrangement of the indicator 241, the conductor 264, the winding 185 of the

Relay 178, conductor 265, and conductor 252 back to rectifier terminals 250. This will set the Winding 185 of relay 178 energized so that movable contacts 255 and 257 lift. Through Contact 255 becomes a hold circuit from DC terminals 250 via conductor 251, the conductor 268, contacts 254, 255 and 253, hold circuit resistor 267, winding 185 and conductors 265 and 252 closed back to terminals 250. Doing this will cause small fluctuations the speed of the web running through no unnecessary actuation of the relays. But when the speed drops noticeably, then that will moving member 245 deflected to the left so that it contacts contact 244. In this way becomes a short circuit via the winding 185 from the terminal 261, via the conductor 264, the movable Contact 245, stationary contact 244, conductors 266 and 265 to the remaining terminal 162 of winding 185 produced. The winding 185 is then taken out of the loop. The voltage drop in the holding circuit resistor 267 prevents an overload of the current source 248. Thereupon the relay 178 drops out and opens the circuit between the stationary contacts 253 and 254.

When the relay 178 is energized, lifting the movable contact 257 against the fixed contacts 224 and 256 an excitation circuit for the winding 214 from the alternating current source 188 via the lines 195, 222, the possibly closed switch 168, the contacts 256, 224 the winding 214, conductors 203 and 204 closed back to AC terminal 189.

The fastening of the protective grille 41 is shown in detail in FIGS. The single ones Wires of the protective grille 41 are under spring pressure at one end, for example at the left end held, as can also be seen from Fig. 18. To maintain the intended distance of the individual wires are provided with slotted locking or comb plates 271 which, as can be seen from FIG. 26, a horizontal slot 272 through which the web 12 passes and transverse slots or grooves 273 for receiving the wires of the protective grille 41. For the resilient fastening of the wires the consoles 123 and 124 are provided with openings 275 for receiving screws 276, which with Coil springs 277 are equipped, each of the threaded end 278 of a screw 276 between a horizontal rocker arm 279 of bracket 124 and a nut 281 on the threaded end of screw 276 surround. The upper end of each screw 276 is provided with a slot 282 which extends downward and slopes obliquely on the outside, as can be seen from Fig. 24a, to receive a loop 283 at the end of the wire.

So that the force of the spring 277 transversely to the longitudinal direction of the wires of the protective grille 41 and without When buckling of the wire is applied, circular pressure glicers 286 are provided, which in comparison to wire 41 have a large diameter. They are on the entrance wall 221 of the Furnace 11 attached. For example, as can be seen in detail in FIG. 24, spacer blocks 287 while the pressure member 286 may be hollow and be in the form of a large diameter having tube. For fastening, screws 288 extend through the wall of the Pressure member 286, the spacer block 287 and the comb plate 271 in the wall 121. The consoles and 124 are fastened in the same way to the wall, for example by means of screws 291, which are guided through the spacer blocks 292 and the wall 121. If necessary, the other can also End of the wires 41 are resiliently mounted, however, the entire adjustment of the tension takes place Wires by adjusting screws 284. The other end, in this case the right end of each Wire, is attached to a link 193, which corresponds to the link 286, and in a suitable manner Way by screws or the like. Is fastened by the spacer block 287, the comb plate 271 and pass through the exit wall 122 as shown in detail in FIG. For fixing of the right end 294 of the wire, the supports 125 and 126 are in the form of eye bolts, which are fastened in the link 293 and have eyelets 295. They are preferably through a verdict 296 held in place. Furthermore, a chain link 297 is provided which is inserted into the eyelet 295 engages and receives a loop 298, which is attached to the end of the wire by twisting the end 294 around the in front of it located part 299 is formed. As with the left end of the wires, the portion of the link 293 has on which the wire rests, has a large diameter compared to the diameter of the wire to a To prevent kinking or other damage to the wire. '

Claims (13)

- Patent claims: 1. Device for the heat treatment of running material, in particular for fixing stretched polyamide cords for tire production, consisting of a heating zone and a cooling zone following it, in which the gaseous, hot treatment agent or the coolant flows from nozzles onto the material to be treated, from supply lines for the treatment agent to the nozzles and a device for keeping the treatment temperature constant as well as fans for circulating the treatment agent, characterized in that both the feed nozzles (28) for the hot treatment agent and the feed nozzles (28A) for the coolant are connected to a common through the treatment zones extending feed channel (18) are connected, at one end (21) of which the hot treatment agent and at the other end (24) the coolant enters, and that a controlled gate valve (31) is provided in this feed channel (18) which the number of the hot treatment agent The feed nozzles (28) acted upon can be changed in relation to the number of feed nozzles (28 A) acted upon by the coolant in accordance with the speed of the material. 2. Apparatus according to claim 1 with suction nozzles and a discharge line for discharging the treatment agent from the treatment zones, characterized in that the suction nozzles (35) for the hot treatment agent and the suction nozzles (3SA) for the coolant to a common, extending through the treatment zones Discharge duct (19) are connected, one end (37) of which faces the suction side of the feed duct (18) for the hot loading agent-feeding fan (23) and the other end (38) of which is connected to a suction fan (39), and that a further controlled gate valve (32) is provided in the exhaust duct (19) through which the number of nozzles sucking off the hot treatment agent (35) can be changed in relation to the number of nozzles (3SA) sucking off the coolant in accordance with the position of the gate valve (31) for the inflowing treatment agent. 3. Apparatus according to claim 2, characterized in that the feed (28, 28A) and the suction nozzles (35, 35A) are arranged alternately one behind the other in the web direction and that the gate valve (32) in the extraction channel (19) opposite the gate valve (31 ) is laterally offset in the feed channel (18) by a certain amount after the cold end (38), which corresponds approximately to the distance between a feed nozzle and the next suction nozzle. 4. Apparatus according to claim 2 or 3, characterized in that a pair of rails (73) extending parallel at a distance from one another and in the longitudinal direction of the respective channel are arranged within the discharge and feed channel (18, 19) on each of the bottom thereof, on which a carriage carrying the gate valve (31, 32) can be moved by means of rollers (71) which essentially consists of a pair of parallel, spaced apart longitudinal rails (65, 66) connected to one another by rods (69) on which the rollers ( 71) are rotatably attached. , 5. Apparatus according to claim 4, characterized in that each gate valve (31, 32) has a slide plate (30, 80) which is fastened in the upright position by means of flanges (67, 68) on the carriage and on both sides of each one curved baffle (60) is attached for deflecting the flow of the treatment agent 6. Apparatus according to claim 5, characterized in that the guide plates (60) to the curved edges have stiffeners (62) and facing away from the slide plate Ends are attached to the bottom of the car. 7. Device according to one or more of the preceding claims 1 to 6, characterized in that the gate valves (31, 32) are attached to chains (44, 45) which are driven by a drive motor (43). 8. Apparatus according to claim 6 or 7, characterized in that the control of the Drive motor (43) for moving the gate valve (31, 32) within the channels (18, 19) depending on the value of the tension one of a transport roller for the material to be treated driven generator (54) takes place. 9. The device according to claim 8, characterized by a circuit from an electrical energy source to the drive motor (43) with a group (58) of position switches (59) and a group (173) of switches (174 to 179) each responding to certain voltage values. , which are each interconnected in pairs, the motor (43) responding to the joint actuation of a pair of associated switches of the two groups (58, 173) and running until the slides (31, 32) are in a position that corresponds to the current crop speed and at which the two switches de-energize the drive motor (43). 10. The device according to claim 9, characterized in that along the path of the outside of the channels (18, 19) running chain strand (46) at intervals switch pairs (165, 175; 166, 176 , etc.) of the two groups (58, 173) are arranged, which are connected in series in parallel bridges between a first conductor (195) and a second conductor (211) and one of which is a normally closed switch (z. B. 175) through relay coils connected to the terminals of the generator (43) (e.g. 182) is opened when the terminal voltage of the generator (43) is reached and the other normally open switch (e.g. 165) can be closed by a switching element (55) attached to the chain strand (46) and that a relay (156) interrupts the power supply to the drive motor (143 ) through a switch (162) when the switching element (55) closes a switch (z. B. 165) of the one group during the longitudinal movement of the chain strand (46), whose associated switch (175) of the other group is closed. 11. The device according to claim 10, characterized by a contact shoe (55) as a switching element which is attached to the chain strand (46) lying outside the channels (18, 19) and position switches (59) arranged along its path and with these switches (164 , 165 etc.) is actuated as soon as the chain strand (46) is moved when the drive motor (43) is actuated. 12. Device according to one of claims 8 to 11, characterized in that when the material transport is stopped, contacts (141, 142) have a conductor circuit (189, 154, 153, 152, 196, 163, 197, 199, 195, 188) for the return field winding (152) of the drive motor (43), which then moves the gate valve to its extreme limit position at the hot end of the device. 13. Device according to one of claims 2 to 12, characterized by pivotably mounted and auxiliary slides (52, 53) for openings brought under pressure into the closed position of the feed channel (18) opposite the discharge channel (19), which at a predetermined Overpressure of the treatment agent in the feed channel (18) each open automatically, whereby the treatment agent can flow directly into the exhaust duct (19). In addition 5 sheets of drawings