DE2547749A1 - DEVICE FOR REVERSING TUBULAR TEXTILE PRODUCTS - Google Patents

Description

PATENT LAWYERS

DR. E. WIEGAND ÜiK -.- iNG. M. NrEM / NN DR. M. KÖHLER DIPL-ING. C. GERNHARDT

MUNICH HAMBURG 2b4 / / 49

TELEPHONE = 555476 8000 M 0 N C H E N 2. TELEGRAMS: KARPATENT MATH 1LDENSTRASSE 12 TELEX: 529 068 KARP D

W 42 418/75 Si / az October 24, 1975

Sam Μ · Goodson
Lookout fountain, Tennessee (V.St, A.)

Device for reversing Schlauchfömigsr

Textile goods

The invention relates to a device for reversing or eversion of tubular textile goods, such as of fine woven, knitted and knitted goods.

When processing Schlauchförrnicer, it is desirable to turn the goods inside out or turn them inside out, so that various operations to be carried out on the goods, such as. Sewing, stapling and the like can be carried out on the inside of the fabric : with the various

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does not affect the appearance of the outside of the goods. It is therefore more tubular when processing Textile goods desired to turn the inside of the fabric outwards in order to differentiate the inside of the goods To be able to subject operations. However, it is important that the fabric not be excessively stretched and thereby damaged when the inside of the goods is turned outwards.

It is known to provide devices which face the inside of a tubular textile product return to any damage to the goods during this process to avoid. U.S. Patent No. 3,568,898, for example, shows such a known device. This well-known Device has a preferably vertically arranged tubular element, which has an arrangement of outer and inner carries ring-shaped air distributors that use air ducts are connected to a source of air. The ring edge of the upper end of the tubular element carries a plurality of freely rotating rollers to the movement of the hose "shaped textile product over the end of the pipe element make it easier if the goods have accumulated on the outside of the tubular element during the reversal process and then returned again is pulled through the inside of the tube element. Of the outer manifold has a multiplicity of openings which form air nozzles that direct an air flow to the outside and direct below and at an angle to the longitudinal axis of the pipe element. The inner distributor also has a Multiple openings on which form air nozzles that allow an air flow inwards and downwards and at angles with align the longitudinal axis of the pipe element *

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The reversing device according to the invention has a first elongated pipe, the interior of which has a first Forms passage, as well as a second elongated pipe, which is arranged concentrically around the first pipe is to form a second passage for a fluid between the two pipelines. the Pipelines are preferably arranged essentially horizontally. An annular element for redirecting and returning of the air flow is arranged in close proximity at one end of the two pipes. An air blower moves air and the tubular air with the help of a puller arranged at one end of the first pipeline Textile through the first passage in the direction from one to the other end of the first pipeline and through the peeling device, where the goods are delivered and are ready for the subsequent treatment. That Fan also moves air in the second passage in the direction from the other to one end of the first conduit. The air flowing in the second passage is deflected and returned by the return element, so that the Air and the tubular textile material essentially in the longitudinal direction from one end to the other of the second pipeline along the outer circumference of the second pipeline be moved to collect the tubular textile goods on the second tubular element when the goods of a Supply roll is withdrawn. The air flow from the blower is either controlled with the help of a control valve fed to the puller or the second passage.

During operation, one end of a delivery of the tubular textile goods is pulled by an operator over the end of the second pipe v.na the SteuerveriV.il so that the air flow from;

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Blower enters the second passage where the airflow deflected and returned by the feedback element is to the air and the tubular textile goods along the outside of the second pipeline in the direction from one end to the other of the second pipeline to move. When the entire delivery of the tubular Textile material has accumulated on the outside of the second pipe, the air flow to the second pass interrupted and the other end of the delivery of the goods by the operator in the end of the first round. The control valve is then switched and shifted so that the air flow passes from the fan to the pulling device, the air and the tubular textile goods through the first passage in the direction from one end to the other and through the puller. This operation causes the inside of the goods to be turned outwards. The goods emerging from the pulling device are then ready for the subsequent treatment, with the inside of the goods exposed.

From this summary it will be seen that the invention provides an apparatus of extremely simple construction creates, which has only two moving parts, namely the fan and the control valve, to the from the fan the incoming air flow either to the pulling device or to the second passage. As the device is advantageously also arranged horizontally, the operator does not need to climb a ladder. and descend to place the towel over or in the device. Beyond that there are no other moving ones Parts, such as rollers of the known device, are required to reverse the do?}, I.e. that bai the £ r-

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inventive device the force of the moving air sufficient to cause the reversal process. Although Rollers such as those in the known apparatus used in connection with the present invention they are not required for complete, effective operation.

Taking into account the summary above of the invention, it is mainly the aim and purpose of the invention to provide a device for inverting or everting To create tubular textile goods which do not damage the goods during the reversal process, for example does not stretch.

Furthermore, it is the aim and purpose of the invention to provide a device for reversing tubular textile goods to create that has as few moving parts as possible.

Furthermore, it is the aim and purpose of the invention to provide a device for reversing tubular textile goods that requires a minimum of operator labor. According to this goal it is not required that an operator of the invention Reversing device climbs up and down a ladder or uses another lifting device to lift the Bring cloth over or into the device.

In the following, an embodiment of the invention is explained in more detail with reference to drawings. In the Show drawingsϊ

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FIG. 1 shows a perspective view of a device according to the invention with the illustration of the process for collecting a tubular textile product withdrawn from a supply roll on the outside of the second pipeline and FIG

FIG. 2 is a partially sectioned side view showing structural details the reversing device according to the invention.

A reversing device Io according to the invention is created in that a first, elongated pipe 12 is fastened in a horizontal position to a frame 2o. The interior of the first pipe 12 forms a first passage 13. The pipe 12 is at an angle 21 of the frame 2o by screwing or welding Or the like. Attached. A second pipe 15 is arranged concentrically around the first pipe 12 and forms together with the first conduit 12, a second passage 16. The first and second conduits are preferred arranged essentially horizontally. In the immediate vicinity of one end 12a of the first pipeline 12 there is an essentially ring-shaped element 13 arranged to return the air flow. The element 18 has a first portion ISa with the end 12a the first pipeline 12 is connected. The first section 13a extends from its junction with the pipeline radially outwards to a region which lies radially outside of the pipeline 15. The element 18 has a second Section 18b which is substantially annular

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and extends from the radially outer region of section 18a in a direction which is from section 18a to the frame leads. The pipeline 15 ends at a short distance from the end 12a of the pipeline 12, by one in the circumferential direction to form running opening 9, which opens the second passage 16. The opening 9 connects the second Passage 16 with a third passage 8, the zx ^ ischen a part of the portion 18b of the element 18 and the End 15a of the second pipe 15 is formed. A large number of radially extending and angularly spaced arranged rods 11 connects the section 18b of the element 18 and the end 15a of the second pipeline

A rotary fan 3o is provided in the frame 2o. A third pipeline 31 with sections 31a, 31b and 31c leads the air flow generated by fan 3o to passage 16 and to one to be described below Extraction device 35. A control valve 37 is provided in line 31. The control valve 37 is in section 31b the line 31 slidably displaceable. The control valve 37 is attached to the end of a piston rod 38 of a piston, which is guided in an air cylinder 39, one end of which is attached to the frame 2o. The piston rod 38 goes through an opening therethrough cut in one end of the conduit 31b. A suitable valve control, not shown controls the movement of the piston in the cylinder and, via the piston rod 38, the movement of the control valve between its foremost and withdrawn position. the foremost position of the control valve is shown in Figure 2 with solid lines, while the withdrawn Position of the control valve in the same figure it: it dashed Lines shown is «The control valve 37 points

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an arcuate surface 37a. When the control valve 37 is in its retracted position, the arcuate surface 37a directs the from the fan 3o generated air flow through the sections 31b and 31a of the conduit 31 into the second passage 16. When the control valve 37 is in its retracted position, it blocks the air flow in the line section 31c from the fan 3o to the extractor 35. When the appropriate valve timing is adjusted, the control valve 37 in Bring its foremost position, shown in Fig. 2 with solid lines, blocks the control valve the line section 31c no longer, so that the air flow generated by the fan 3o through the line section 31c to the puller 35 can flow.

The pulling device 35 is connected to the end 12b of the first pipeline 12. This puller can of be of the type described in US Pat. No. 3,276,821. When the air from the fan 3o through the third line section 31c is pushed into and through the extractor 35 (eductor), air flows through the first passage 13 in the direction from the end 12a to the end 12b of the pipeline 12 through

Beyond and below the end loa of the reversing device a supply roll 23 is arranged on which a length of a tubular textile product is wound. One During operation, the operator brings the free end of the tubular textile product over the end 10a of the reversing device Io and switches the valve device so that the control valve 37 is in its retracted position is moved. The operator then operates the device

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bubble 3o. The air flow from the blower 3o is guided by the control valve 37 through the section 31a of the line 31 and into the second passage 16 in a direction from the end 12b to the end 12a of the line 12. The air flowing through the passage 16 is deflected and returned by the element 18 so that the air flows through the opening 9 into the passage 8 and along the outside of the second pipe 15 substantially in the longitudinal direction from the end 15a to the end 15b of the pipe 15 The force of this air flow moves the tubular textile product in the longitudinal direction along the outside of the second pipeline 15, as shown in FIG. This process continues until all of the tubular textile goods wound on the supply reel 23 have been drawn onto the outside of the second pipeline 15. The valve device is then actuated in order to move the control valve 37 into its foremost position, so that the air flow generated by the fan 3p is guided through the section 31c of the line 31 to the pulling device 35 and thereby ensures that an air flow in the first passage 13 is achieved in the direction from end 12a to the other end 12b of the pipeline. 12 is created. The operator can switch off the fan 3o or let it continue to run. The operator then grips the end of the tubular textile on the second line 15 in the immediate vicinity of the end loa of the reversing device and brings this end of the tubular textile into the first passage 13. When the fan 3o is switched off, the operator switches it on again Hose-like textile goods are forced by the air flowing in the first passage 13, through a & n passage in the direction from the end 12a to the other end 12b of the pipe 12 and through the pulling device 35.

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at the end 36 of which the tubular textile goods are released will. This process continues until the entire previously stored on the outside of the line 15 tubular textile goods pulled through the passage 13, the pull-off device 35 and through the end 36 thereof has been. This process causes the inside the tubular textile goods turned outwards is. The from the end 36 of the puller 35 Escaping Viare is therefore for a subsequent treatment ready, with the inside of the goods freely accessible.

The lines 12 and 15, as shown, are preferably arranged substantially horizontally so that the The operator does not have to use a ladder or lifting device to move the tubular textile product to the reversing device to attach. It goes without saying that the Ora reversing device according to the invention can also be used in other Layers, including a vertical arrangement as well as any of the various angular positions between the horizontal and vertical position, could be arranged. In practice, however, it is an essentially horizontal position preferable in which the ends 12a, 15a of the lines 12, 15 are slightly higher than the ends 12b, 15b of the lines 12, 15.

The invention thus creates a reversing device for a tubular textile product with a first elongated one Pipeline, the interior of which forms a first passage, and with a second elongated pipeline, which is arranged concentrically around the first pipeline and together with the first Pohrleittma one

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second pass forms. The lines are preferably arranged essentially horizontally. An element for returning the air flow is arranged in the immediate vicinity of one end of the first and second lines. With the help of a pulling device arranged at one end of the first line, a fan causes an air flow in the first passage in the direction from the end in the immediate vicinity of the return element to the other end of the first line, around the tubular, knitted or knitted fabric through the first Pull the line through. The air blower also pushes air through the second passage in the direction from the other end of the first conduit to one end thereof, in the immediate vicinity of which the return element is arranged. The air flowing in the second passage is deflected and returned by the return element, so that the air flows essentially in the longitudinal direction from one end to the other end of the second line along the outside of the second line. This air flow moves the tubular textile goods over the outside of the second Line and collects the tubular fabric on the second line when the tubular fabric is withdrawn from a supply roll. During operation, one end of a length of the tubular fabric is pulled by an operator over the end of the second conduit and the air flow from the blower is guided through the second passage and diverted and returned by the return pipe to the tubular fabric along the outside of the second conduit move its other end. This movement continues until the supply is exhausted and the entire supply of tubular textile goods has accumulated on the outside of the second conduit. hindurch.- the aweiten Durchcrang

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outgoing air flow interrupted by the operator. The operator then sets the end of the tubular Textile goods on the second line in the first passage. The airflow coming from the blower will then passed to a puller to air and the tubular fabric through the first passage from one end to the other of the first conduit and through the puller. This The operation of the reversing device causes the inside of the tubular textile product to be turned outwards will. The goods delivered from the pulling device are therefore ready for subsequent treatment, with the The inside of the goods is freely accessible from the outside.

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Claims (11)

Patent references l.i device for reversing tubular Textile goods, characterized by a first elongated line (12) which has a first passage in its interior (13) forms for a flow medium? a second elongated conduit (15) surrounding the first conduit (12) is arranged and forms a second passage (3-6) for a flow medium therebetween; a recirculating air flow Element (18) in the immediate vicinity of one ends (12a, 15a) of the first and second lines (12, 15); a first pneumatic device (3o, 35), v / which air through the first passage (13) towards the one End (12a) moved to the other end (12b) of the first conduit (12); a second pneumatic device (37) which Air through the second passage (16) in the direction from the other end (12b) to one end (12a) of the first conduit (12) moved; wherein the element (18) is substantially the air flowing through the second passage (16) in the longitudinal direction from one end (15a) to the other end (15b) of the second line (15) along the outside the second line (15) deflects and returns. 2. Device according to claim 1, characterized in that the element (18) has a first and a second section (ISa, 18b) and the first section (13a) with a section of the first line (12) in the vicinity of one end (12a) and protrudes from here radially outward over the second line 15, and äe.2 the second section (18b) from the first section (18a) in 609820/031 1 2S47749 Longitudinal direction from one end (12a) to the other end (12b) of the first line (12) outside the second line (15) protrudes and with the second line (.15) forms a third passage (8) through which the returned air can flow. 3. Apparatus according to claim 2, characterized in that a plurality of spaced rods (11) the second section (18b) of the element (18) and the second line (15) connects. 4. Apparatus according to claim 1, characterized in that the first and second pneumatic devices Air blower (3o) and a control valve (37), which either the air flow generated by the blower (3o) either the first or second passage (13, 16) supplies. 5. Apparatus according to claim 4, characterized in that that the first pneumatic device (3o) has a pulling device (35) which with the other end (12b) the first line (12) is connected to connect the fan (3o) to the first passage (13). 6. Apparatus according to claim 1, characterized in that the first and second lines (12, 15) substantially run horizontally. 7. Device for reversing tubular Textile goods, characterized by a first, elongated one tubular conduit (12), the interior of which forms a first passage (13) for a flow medium; a second, elongated one tubular line (15) concentrically in the 609820/031 1 the first line (12) is arranged and forms a second passage (16) therebetween for a flow medium; a substantially annular, recirculating a stream of air Element (18) in the immediate vicinity of one ends (12a, 15a) of the first and second lines (12, 15); a first pneumatic device (3o, 35), which air through the first passage (13) in the direction of one end (12a) leads to the other end (12b) of the first line (12); a second pneumatic device (37) which air through the second passage (16) in the direction from the other end (12b) to one end (12a) of the first line (12) leads, wherein the element (18) the air flowing through the second passage (16) is substantially in the longitudinal direction from one end (15a) to the other end (15b) of the second conduit (15) along the outside of the second conduit (15) leads. 8, device according to claim 7, characterized in, that the element (18) has a first and second section (18a, 18b) and the first section (18a) with a section of the first line (12) in the immediate vicinity of which one end (12a) is connected and from here protrudes radially outward beyond the second line (15), and that the second section (18b) extends from a radially outer section of the first section (18a) in the longitudinal direction from one end (15a) to the other end (15b) of the second line (15) and a portion of the second line (15) in the immediate vicinity of which one end (15a) surrounds and a third passage in between (8) through which the deflected and returned air flows. 609820/03 11 9. Apparatus according to claim 7, characterized in that that the first and second pneumatic devices (3o, 37; 35) an air blower (3o) and a control valve (37) has which the air flow coming from the fan (3o) optionally leads to the first or second passage (13 or 16). 10. Apparatus according to claim 7, characterized in that that the first and second lines {12, 15) run essentially horizontally, 11. Device for reversing tubular textile goods, characterized by a first, elongated tubular line {12), the interior of which forms a first passage (13) for a flow medium? .a second, elongated tubular conduit (15) which is arranged concentrically around the first conduit (12) and forms a second passage (16) therebetween for a flow medium; a substantially annular, an air flow • returning element (18) in the immediate vicinity of the one ends (12a, 15a) of the first and second lines (12, 15); a puller connected to the other end (12b) of the first line (12)? a third conduit (31) between the fan (3o) and both the extractor (35) and the second passage (16) for connecting the fan (3o) to these parts; a control valve (37) in the third line (31) to supply the air flow generated by the fan (3o) to the extraction device (35) or the second passage (16), the element (18) deflecting the air flow and through moving the second passage (16) substantially longitudinally from one end (15a) to the other end (15b) of the second conduit (15) along the outside of the second conduit (15). 609820/031 1 Blank page