DE2053265A1 - Material treatment device - Google Patents

Description

G- 47 320

Alexeff-Snyder-Enterprises Inc., 13000 Triskett Road, ), Ohio 44111 (USA)

Material handling device

The invention "relates generally to material treatment apparatus of relatively simple and compact design, which changes to adapt to the material speed of the line the amount of the inside) of a treatment chamber subjected to a treatment material in a simple manner.

In continuous or semi-continuous processing of tape or strip-shaped material made of metal, plastic, Paper or textiles often have to be one or the other multiple material treatment stations pass through, and it may be essential, or at least desirable, that the treatment time and temperature of the material within the treatment chamber constant over the entire length of the material remains even if the speed changes in the streo

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ORIGINAL INSPECTED

appear.

Such changes can e.g. B. by changing the length of the Path of movement of the material within the treatment chamber or by changing the oven temperature, or by "balancing out" both will. In practice, however, it is prohibitively expensive to have such a highly sensitive temperature control as necessary to change the furnace temperature sufficiently to provide a uniform temperature of the material is retained. This is especially the case when there are strong fluctuations in the speed of the Stretch can occur.

In the most practical solution to the problem to date, movable dancer rollers have been provided around which the material was led around, with a "displacement of the dancer roll in and out of the treatment chamber the length of the treatment effectively changes the exposed material. The amount of material exposed to the treatment process at any point in time is however, with such a construction limited by the length of the treatment chamber, and an additional dancer roll must be used be provided outside the treatment chamber to the material in the opposite direction to the first dancer roller to move if the material tension is substantial should be kept constant, thereby increasing the cost of the device.

In contrast, it is the object of the invention to provide a simpler Compact device to create the substantial changes in the amount of a treatment within a treatment chamber The exposed material allows for a wide range of changes in the speed of the Streoke or the Equalize temperature within the treatment chamber. The aim is to design the device so that it the same material length regulates at every point in time in order to im

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INSPECTED

Maintain essentially the same tension on the material, while different amounts of material are exposed to the treatment, regardless of the treatment time Keeping the speed of the route essentially constant.

This object is achieved according to the invention by a treatment chamber, a carriage that can be displaced relative to the treatment chamber, through the displacement of which the carriage moves into the treatment chamber Reaching section of the car is enlarged and reduced, and by material guide Einriehtungen to create a multitude of material passages of constant length on the carriage, but with the lengths of the inside the treatment chamber or sections of the material passages located outside the treatment chamber in relation to each other enlarge or reduce the displacement of the carriage in and out of the treatment chamber.

This ensures that the device has two or more Material passages so carries that when shifting into the treatment chamber, the length of the passages to change the amount of material exposed to the treatment at any point in time can be changed.

This is accomplished by equipping the apparatus with a cart which is arranged to go in and out of the Treatment chamber can be brought. A plurality of material passageways or webs are supported by the cart, the be brought into and out of the treatment chamber together with the trolley. With such a configuration, the Amount of material carried by the carriage constant while the length the passages subjected to the treatment process during the movement of the carriage into and out of the treatment chamber, as mentioned, is zoomed in and out, and it is because of

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Because of the way in which the material is balanced on the carriage, little force is required to move the carriage. The position of the carriage within the Behandlungekammer can also automatically depending on the speed of the line or the temperature of the vcm Removing ¹ passing material to be controlled. When the treatment section is switched off, the material passages can be completely removed from the treatment chamber. An additional chamber Tor can also be seen in the vicinity of the treatment chamber, in which the carriage section located outside the treatment chamber is accommodated in order to create conditions for a second treatment or cooling of the material.

The invention i ^ st in the following with reference to the description of several Aasflihrungsbeispiele in connection with the drawing in more detail explained, namely shows or show:

1 shows a horizontal section through a preferred embodiment of the material treatment device according to the invention along the line 1-1 in FIG. 2 \ ^χ

2 shows a vertical longitudinal section through the device according to Pig. 1 along the line 2-2 of this Fi

Pig.

Fig. 3 is an enlarged partial cross section through the carriage AEIE oacL -'- treatment chamber taken along line 3-3 in Fig. 2 \ and

Fig. 4 EohematisöTae longitudinal sections by modified, and 5 examples. the appropriate mater i albehandluhgsvo rri oht ung.

In the drawing, a preferred version of the material treatment device according to the invention is shown in its office fflit with the reference 1 denoted xw &. It has two main units, a treatment chamber 2 and an iron carriage 3, the construction of which is made so that it can get in and out

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the entry end 4 of the treatment chamber 2 are moved can. The carriage 3 can by running on guide rails 6 Wheels 5 be supported, which guide the carriage 3 during movement in and out of the treatment chamber. Also plunger or other suitable rolling or sliding constructions can be used for this purpose.

The carriage 3 preferably consists of a plurality of pairs of vertically spaced support rails 8, which are attached at their opposite ends to vertical frame parts 9, whereby between adjacent Pairs of support rails 8 spaces 10 for hot air ducts 11 are created, the purpose of which will be explained below. Additional hot air ducts can also be used above and be provided below the carriage. A multiplicity extends between the support rails 8 of each individual pair of guide rollers 12, which sit on shafts 13, which in suitable rolling bearings 14 (see in particular Pig. 3) in the associated support rails 8 are rotatably mounted. A leadership role 12 is near each end of the pairs of guide rails arranged and additional guide rollers 12 can, if this is necessary in order to provide suitable support for the material M to be treated, also in the area be provided between the ends.

In the vicinity of the inlet end 4 of the treatment chamber 2 are two sets of material guides 15 and 16 arranged by each of which consists of one or more guide rollers extending between adjacent pairs of support rails 8 consists, the ends of which are rotatably mounted in stationary roller chairs arranged on opposite sides of the carriage 3 are, below the carriage 3, as shown, two additional guide rollers 19 and 20 can be mounted in the roller chairs 18.

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The material M is first rolled around the entry guide roller 19 guided around and then between the guide roller 12 on the inside End 21 of the carriage 3 and a first set of the fixed guide rollers 17 guided back and forth to a plurality to create passages 22 of the material which are moved into and out of the treatment chimney 2 with the carriage 3. Clay of the last or top guide roller 12 at the inner end of the carriage 3, the material extends to the outer end 24 of the carriage 3> where it is also about di © guide role 12 am outer end of the carriage and the second set of fixed Material guides 10 are routed around to additional passages 25 of material outside the passages 22 create. From the lowest guide roller 12 at the outer end of the carriage 3, the material is guided around the other fixed guide roller 20, which is the exit guide roller. .. ■ "-

With this configuration, the length of the carried by the carriage 3 is Material constant at all times, regardless of the position of the carriage relative to the entry and exit points Exit rollers 19 and 20, whereby the tension in the material remains essentially the same, with the exception of a slight one Stress or strain caused by changes in the average material temperature is caused. The length of each passage 22 of the material protruding into the treatment chamber however, changes depending on the amount of movement of the carriage 3 in and out of the treatment chamber. It is Clearly, as the carriage 3 pushes further into the treatment chamber, the path of travel of each passage 22 inside the chimney it becomes larger, while the path of movement of each passage 25 outside the chamber is correspondingly smaller A shift of the carriage 3 to 8 of the treatment chamber out has the opposite effect, i.e. H. the length of each passage 22 becomes shorter and the length of each passage 25

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gets longer. Due to the way in which the material is guided over the carriage 3, this is also complete balanced, whereby only the small amount necessary to overcome the friction of the wheels 5 or other guide devices Force is required to keep the carriage on the guide rails 6 to move.

When the carriage 3, as in fig. 2, is inserted into the treatment chamber 2, that which is exposed to the treatment remains Material M in the treatment chamber with the exception of the short lengths of length between each passage 22 at the Place where the media wraps around the first set of media guides 15 is led around, which is about 30 to 38 cm (12 to 15 inches) from the inlet end 4 of the treatment chamber are. This first material guide 15 can, if desired, inside be arranged half of the treatment chamber itself. In this pail, the material of the passages 22 leaves the treatment chamber not at all until the last round. In this case, however, it is not possible to completely cover the material passages 22 out of the treatment chamber 2 when the treatment line is completely shut down. This complete lead out is usually desirable so that no material is subjected to treatment during downtime.

The position of the carriage in the treatment room 2 can be on the Time to which the material is to be subjected to a treatment process, or the speed of the treatment line based yourself. Accordingly, if the treatment section only runs at half the maximum speed, the carriage becomes 3 brought about halfway into the treatment chamber so that the material passages 22 exposed to the treatment process are only about half the length, etc. When the treatment time has been determined, can do it regardless of the speed of the route can easily be adhered to in that the section of the carriage 3 which protrudes into or out of the treatment chamber automatically table or in any other way.

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To control the tension in the material M, two tensioning rollers 30 U-no 31 are provided. The chair 30 serves to feed the material into the device, and the chair 31 withdraws the material at a predetermined speed. By increasing or decreasing the speed of the tension roller chairs 30 and 31, a predetermined tension or elongation of the material can be maintained. If the treatment line runs at constant speed and the temperature and tension in the material also remain the same, the carriage 3 remains stationary and the treatment time of the material also remains the same, however, if the speed of the line is changed or if the temperature in the treatment chamber rises or falls , the tension or expansion in the material also changes between the two tensioning roller members 30 and 31, which means that a slight correction in expansion, tension or temperature is necessary the treatment chamber exits, arranged temperature sensor 33, which can either be designed as a sliding thermocouple or as a pyrometric temperature sensor in order to determine the exact temperature of the material emerging from the treatment chamber. The determined temperature can be used to set one of the characteristics mentioned above, i. _{f are used} for stress, strain or temperature. The actual change in these characterisers is usually very small and requires little correction.

For even heating of the material M in the? Treatment chamber 2, this is well insulated, and the entry edge 4 of the chamber into which the. Car 3 protrudes -, white #itie number of openings .35 *, tere $ r8J3e nor slightly more than 4 of the carrying rails $ lies, around an unhindered Üewe..gaiLg railed through the 8f £% £ Qgm ■ Euusulass «» * AmÄeräeia the hot film channels 11 ϊΐίφτ ^ βββ, ϊ ^ ΐοΐιβη About djLp &} * $ · „l & pige of the material passages 8 £,. '~ We * m 4 ** fftgeia 3 in the tower έ is completely inserted. Both in the top 37 and the bottom

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side 38 of each of the central hot air ducts 11 is a leg provided by openings 36 and the top and bottom hot air ducts have similar openings on one side * around the Hot air on all material passages 22 over their entire length to straighten.

The hot air ducts 11 are surrounded by air return ducts 39 » which allow an effective circulation of the air within the treatment chamber. Within the air return ducts 39 are Burner 40 arranged for heating the recirculated air. The recirculated air is then through an outermost end The circulating fan arranged in the treatment chamber is returned to the circuit. The supply air is preferably stationary constantly under positive pressure, while the return air is under negative pressure stands so that the polluted return air does not come out of the Treatment chamber can escape. Only a controlled amount of air is removed through discharge channels (not shown).

The outside of the treatment chamber 2 standing portion of the carriage 3, the return or storage passages 25 of the Material can, if desired, be exposed directly to the atmosphere I, but preferably it is exposed to a second Chamber 45 enclosed to meet requirements for a second treatment or cooling of the treated material M after leaving to create the treatment chamber. In this case it can in the second chamber 45 near the fixed guide rollers 19 and 20 a single opening 46 for entry and The exit of the material into and out of the device should be provided.

For less complex material treatment lines where it is not so important that the material be kept within the treatment chamber throughout the treatment process remains, the multiple, carried by the movable carriage for displacement in and out of the treatment chamber 52 can be Passages 50 of the material "M from one end of the cart to the other"

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- 10 -

Ren extend, as shown in FIGS. 4 and 5 is shown. As a result is nor a part under normal working conditions, when the trolley only partially protrudes into the handling chamber each material passage inside the treatment chamberj the remainder of each passage is outside the handling treatment chamber, but can be enclosed in the second chamber 53 be. The size of the portion of each passage lying within the treatment chamber 52 is of course dependent on how far the carriage is pushed into the treatment chamber. When the carriage is essentially completely in the treatment chamber 52 is, then substantially the entire length of the passages 50 is received in the treatment chamber, while the entire The length of the passageways is outside the treatment chamber when the carriage is substantially fully withdrawn from the chamber is. The latter is particularly desirable when the line is switched off.

The carriage shown in Fig. 4 is designated as a whole by 55 and has a pair of vertically spaced from each other arranged guide rollers 56 in the vicinity of the outer end of the carriage located between a pair of vertically spaced guide rollers 57 near the inner end of this carriage, while in Fig. 5 the guide rollers 56 'and 57' near opposite ends of the carriage 55 'are alternately perpendicular to each other. The design of the guide roller arrangement according to Fig. 4 results in a balance between the forces exerted by the strip material on the carriage on which it is guided back and forth Forces, while the force acting on the carriage 55 'of FIG create a somewhat unbalanced relationship. The material handling device 60 of Fig. 4, however, requires a fixed guide roller 61 between each pair of verti kai a distance delegated leadership roleii 56 in the vicinity of the Entrance end of the handling chamber 52, which occurs during execution the material treatment chamber 60 'according to FIG. derlioh is.

5 not required

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The material treatment devices 60 and 60 'according to the Pig. 4 and 5 approach the additional gate part opposite the material handling device 1 the Pig. 1 to 3 »that the entry and exit guide rollers 62, 62 * and 63 »63 'for the strip material arranged on opposite sides of the device can be to the entry of the material into the device from one side and the exit of the material from their other side to allow, creating a direct overpass is possible in a further material treatment device of the treatment line. As can be seen from Fig. 4, the incoming material first around the entry guide roller 62, then around the first guide roller 57 at the inner end of the carriage 55, then around the first guide roller 56 at the outer end of the carriage, then around the stationary guide roller 61 between the guide rollers 56 and another guide roller 56 and finally back to the other guide roller 57 at the inner end of the carriage, etc. From the last guide roller 57 runs the material continues to the exit guide roller 63 led around it and exits the device.

In Fig. 5, the material also enters the device 60 * around the entrance guide roller 62 ', then runs ^{back and forth between the guide rollers 57 r} and 56 * at opposite ends of the carriage 55', up to the last guide roller 56 'in the Near the outer end of the carriage 55% of where the material passes to the exit guide roller 63 'and exits the apparatus. While only a pair of feed rollers 56, 56 'and 57' 57 'are shown at each end of carriage 55 and 55' in Figures 4 and 5, it will be understood that depending on the number of material to be treated - Passages any desired number of pairs of rollers can be provided.

A typical treatment sequence in which not every passage of the material to be treated is completely taken up in the treatment chamber must be, may be a course of treatment in which dei

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Section of each material passage received in the treatment chamber progressively heated, while the temperature of the portion of each material passageway outside of the treatment chamber is kept constant between the passages in the second chamber.

From the above outlined it is apparent that the various designed according to the invention cart carrying the material aas on it in the and the treatment chamber ^ u transfer, a constant length of material taken that jedooh the ζ the Behandlungspro ESS exposed length of material by displacement of the carriage in and out of the treatment chamber can be changed without changing the tension in the material. The wagons carry a variety of. Material passages, which are pushed into or pulled out of the treatment chamber to adapt to the speed of the path, and the treatment chamber is designed in such a way that it ensures uniform heating of the material located within the treatment chamber.

1098217131 B

Claims (12)

-Patent claims 1 . Material treatment device characterized by a treatment chamber (2 | 57) »one relative to the treatment chamber movable carriage (3 | 55) »by moving it the section of the carriage (3j 55) reaching into the treatment chamber is enlarged and reduced, and by Material guide devices to create a variety of material passages on the carriage that are constant in overall length, but the lengths of the inside the treatment chamber (2) or located outside the treatment chamber Sections of the material passages (2 and 25, respectively) in proportion to the displacement of the carriage in and out of the Enlarge or reduce the treatment chamber. 2. Apparatus according to claim 1, characterized in that a multiplicity of pairs of support rails (8) arranged at a distance from one another are provided in the carriage (3j 55), and that the material guiding devices have a plurality of rollers (I2j 56, 57} 56 ', 57') which are connected to their opposite ends rotatably mounted in the support rails (8) Shafts (13) are supported. 3. Apparatus according to claim 1 or 2, characterized in that the treatment chamber (2) is between adjacent pairs has hot air ducts (11) which extend from support rails (8) and which have openings (36) distributed over their length are provided to direct hot air onto the material passages (22) within the treatment chamber. 4. Apparatus according to claim 3, characterized by the hot air channels (11) surrounding air return ducts (39) »a heating device (40) arranged in the air return ducts for Heating the recirculated air, and by a circulation fan 10 9 8 2 1/13 18 -u- (41) in the treatment chamber (2) for sucking the heated air out of the air circulation ducts and for blowing the heated air into the hot air ducts. 5. Device according to one of the address 1 Ms 4, characterized in that that the .Material guide facilities in the Near the inlet end (4) of the treatment chamber (2) opposite sides of the carriage (3) Bollenstlihle (18) have, and that between the roller chairs (18) guide rollers (17) run between "adjacent pairs of Support rails (8) lie. 6. Device according to one of claims 1 to 5, characterized by means of tensioning reel stems (30, 31) arranged in the vicinity of the inlet end (4) of the treatment chamber (2) for feeding the material (M) to one end of the carriage or withdrawing the material (M) from the other end of the carriage, and by measuring the temperature of the material emerging from the treatment chamber and the speed of the Tension roller chairs (30, 31) correcting temperature sensors (33) for setting the tension or slack in the material (M). 7. Device according to one of the preceding claims, characterized through a second chamber (45 | 53) for receiving the section protruding from the treatment chamber (2f 52) of the carriage (3 | 55) to meet the requirements for a second treatment of the one leaving the treatment chamber (2f 52) Materials (M) to create. 8. Device according to one of claims 2 to 7, characterized in that that in the inlet end (4) of the treatment chamber (2) a plurality of passages are provided through which the spaced-apart pairs of support rails (8) step through. 10 9 8 2 1/1318 9 · Device according to one of the claims 2 "to 8, characterized in that that on the pairs of support rails (8) additional guide rollers (12) are provided, which an additional Support of the material passages (22, 25) during the movement of the carriage (3) into and out of the treatment camera (2) create. 10. Device according to one of claims 7 "to 9» characterized by from the second chamber (45) into the treatment chamber (2) running guide rails (6) and through wheels (5) arranged on the carriage (3) and engaging the guide rails (6) for guiding the displacement movement of the carriage (3) between the second - (45) and the treatment chamber (2). 11. Device according to one of the preceding claims, characterized in that the material guide devices a plurality of at opposite ends of the carriage (3) arranged guide rollers (12f 56, 57) which with fixed guide rollers (17 | 61) in the vicinity of the inlet end (4) of the treatment chamber (2 | 52) cooperate. 12. Device according to one of the preceding claims, characterized characterized in that at the level of the opposite sides of the material handling device (60 $ 60 ') are fixed Entry (62f 62 ') and exit guide rollers (63f 63') are arranged. 109821/1318