MXPA97004953A - Apparatus to group text - Google Patents

Abstract

The present invention relates to an apparatus for grouping textiles, characterized in that it is transported successively in a transport path, based on the detectable criteria, with sensor means for determining the successive textile criteria and for generating sensor signals corresponding to the criteria, with an evaluation device to compare the sensor signals with each other and to generate an output signal and with a classification switch for textiles controllable based on the output signal located on a transport path.

Description

APPARATUS TO GROUP TEXTILES FIELD OF USE AND PREVIOUS TECHNIQUE The present invention relates to an apparatus for grouping textiles transported successively in a transportation section based on detectable differential criteria. In particular, the apparatus preects the formation of pairs of socks in an assigned arrangement with respect to their length. Er. For short stockings, such as socks, it has been found that it is virtually impossible to successively and uniformly make long stockings during the weaving and remachining process (including the configuration of the socks to the desired profile). There is a still very significant difference with respect to the lengths in the socks produced in the immediately subsequent form. This is serious, if the socks are stored in an uncontrolled manner for the tissue process and the packaging, that is, they are eliminated for further processing in a highly random manner from a container. Although this scarcely has any influence with respect to the use of socks, it is unacceptable in the packing of socks, if the shorter sock is on the visible side of the package and the longest sock is visible behind it. . This is even more serious if the socks are folded together, since then the back or inner part of the sock takes the shortest trajectory and, therefore, seems longer. Therefore, until now, the packaging has been preceded by a manual sorting procedure, wherein the pairs so combined that the longest stocking is in the front or upper part.

PROBLEM AND SC U I N The problem of the invention is to provide an apparatus for grouping textiles, which allows such grouping procedures to be performed automatically. According to the invention, this problem is solved by claim 1. From this ir.ai.era, the invention makes possible the following determination of the differential or differentiation criteria through a perception device, for example, an optical scanner on the textiles that arrive successively, to control the corresponding grouping in the evaluation device, which, for example, contains an electronic comparator for the sensor signals. An output signal from the evaluation device can then control a sorting gate for the textiles provided in an additional transportation section. The textiles can be, for example, guided in a juxtaposed manner with the correct orientation with respect to the different length within a pair. They can be removed there through a removal device to pack them together and be inserted into the correct position in a packing sleeve. This can occur during any case of textile machining, for example, directly following a section and configuration, where the textiles are expelled on profiled members and by heat treatment they are given the final desired shape. From this, they can be expelled through web conveyors acting on both sides and are transported in a hanging form to the grouping apparatus. To this re-sr rtc, it is pointed out that the removal of the socks of the trainers in motion is presented through fasteners of intermittent operation, which hold the socks, stretch them downwards from the trainers and transfer them to a device, where the socks are attached are needles and accumulated. These fasteners are replaced by a controlled bilateral band section that can be closed and opened. DE 4131802 C2 describes a method for removing ^ socks from a former through a band section. However, this refers to the elimination of meshes from a corresponding double former with the immediately subsequent bending. The section between the removal of the textiles from the formers and the end of the grouping section is particularly suitable for additional work, which is in particular made with high quality socks. The weaving procedure usually leads to projecting the ends which are harmful, particularly near the top of the sock. Usually, they are cut manually with scissors or a mechanical device, operating in a similar way to the peel fasteners. The hanging or the suspended transportation of the socks in the transportation sections makes it possible to cut the strands mechanically and optionally ex.r :. _r. ñsresitive of suction upstream, which exposes the strands attached to the socks, but otherwise is lost on one side. The cutting can then take place through a cutting device, which can be constructed in the form of a machine for cutting hair or razor. If your knives are protected in such a way that they do not damage the stocking, then they will be guided in an uncontrolled manner, sccre the outer part of the stocking, and optionally also towards the top. However, it is also possible for the cutting device to be moved in a controlled manner until the strands are projected as a function of its optical scanning. These and other aspects may be gathered from the claims, description and drawings and the individual aspects, both individually or in the form of sub-binations, may be implemented in one embodiment of the invention and in other fields and may represent sales constructions.; sas, independent-crite ible for which such protection is claimed in the present. The subdivision of the application into individual sections and the subtitles in no way restrict the general validity of the statements made herein.

BRIEF DESCRIPTION OF THE DRAWINGS One embodiment of the invention will be described in greater detail with reference to the accompanying drawings, in which: Figure 1 shows a diagrammatic side view of the grouping apparatus.

Figure 2 shows a diagrammatic plan view of the apparatus of Figure 1, with a block diagram of the drive and its control.

DESCRIPTION OF THE PREFERRED MODALITY Figure 1 shows the end of a sock configuration section 11 containing phantoms 12, which are fixed in a straight line to the chain 13 and rotate continuously and intermittently in the direction of the arrow 1. The formers 12 are metal plates profiled in accordance with the leg shape and on which closed-ended sock sockets are stretched optionally preconfigured with respect to the heel in the weaving process, but which are otherwise not profiled. Then, they are brought to the desired shape of the sock 15 through a heat treatment. As a result of the manufacturing process, even socks of the same size have different lengths, that is, the lower edge of the upper part 16 is stretched to a different degree on the arrow of the former 12, before reaching a position. of removal or stretching 17, is optically perceived through a sensing device 1 = cer. with respect to the position of the lower upper edge 16. As indicated, this may comprise a row of super imposed optical sensors that react to differences in brightness between the socks 15 and the former 12. However, it is also possible to use other perception methods. , including mechanical sensors, capacitors, or other non-contact c contact sensors. If the socks are found to contract or stretch to a different degree after removal of the trainer, it may also be possible to place the sensing device at a point where the socks are already transported in a stranding ferra. In the removal position, the upper part of the former, that is, the standing portion 19, runs between two conveyor belts 20, 21, which, in the manner indicated in Figure 2, can move towards and away from one of the another, so that at a precisely predetermined time can be very close to the foot of the sock in order to stretch it d sd the trainer. The formers 12 are thus fixed to a chain 13, which the upwardly inclining foot 19 is at the front. For this reason, the conveyor belt 20, 21 is directed upwards in the same manner, so that the socks can be stretched in a relatively free form to the resistance from the former, when the transpor aacra band closes and is closed. Cradles transport the socks 15 with their interiors in the direction of the arrow 22. As a result of the upward tilting movement, the socks are released from the area of the sock configuration section, which subsequently terminates in the removal position by an inversion. of the chain 13. The conveyor belt 20, 21 transfers the socks 15, still in a sloping form, that is to say, grasped near the tip 23, to a horizontal conveyor belt, with double side 24, which ends at the gate of Z classification? . This sorting gate comprises two parallel bands 26 between which is a pivotable sorting gate tongue 27. It is pivotable in both directions, in the direction of the arrow 28 together with the bands 26, so that, as a function of the classification composite position, the socks enter on one or the other side of the bed. Check the sorting gate. If the socks are to be classified, for example, in such a way that their tip ends hang in pairs in the same direction, then the conveyor belt 20/21 or taking the conveyor belt 24, the height can be varied by means of the control and the servoaction separated from it in such a way that the appropriate position is obtained in each case. The parallel conveyor belts or channels 29, 30 thus formed, are extended by a band section 31, which is positioned on both sides of a guide rail 32 running in the extension of the sorting gate tongue. These, for example, can be compressed by the roller levers 33 to a greater or lesser degree on the guide rail 32, so that the contact fixation of the socks can be released in a controlled manner. The sensors 34 can determine the final position of the socks in the band section 31 and stop the relevant band, so that the socks can be placed in a specific location. The apparatus controlled through an evaluation device 35 acting on the actuators 36, 37, 38 for the band sections 20, 21, 31 and the sorting gate 25 indicated in Figure 2. These can be electric, hydraulic servoactuators or tires, which move the bands by means of the roller levers 33 and / or the band guide rollers. The band section 31 has a 3S actuator controllable through the evaluation device independently of the rest of the band sections.

Figure 1 shows that near the horizontal conveyor 21, - strand cutter 40. This device contains a device acting eucción 41 near the top 16 of the sock hanging down and the opening 42 is provided is located near the top part and can optionally and partially engage the latter, as well as a cutter device 43, which is a driven meter and can be labeled as a cutter or shaver. Optionally, it can also be attached around two sides of the sock and rosar s_ surface when the calf == moved you will go there. The cutting device has at least one comb-type blade driven with a motor, which rotates or oscillates, and which is protected by comb-type or perforated protective covers.

FUNCTION Socks, particularly sports socks, are usually woven in circular knitting machines with natural colored threads such as a hose with or without a formed heel or vibrating during weaving. Subsequently, the tip is closed with a seam and the product is bleached or colored. Then, from a point of view of form, 1st fit iree have a not very attractive appearance, so they must be configured to a suitable form for sale. The configuration takes place in the configurator section 11 under the action of heat, mainly on the formers 12, which are shown in the drawings after carrying out the heat treatment. The individual formers 12 which stretch the socks 15 run in the direction of the arrow 14 towards the removal or stretch station 17 after passing the detection device 18. The detection device determines, for example, on a basis of difference of brightness between icr fnrm Ll: sock 15, the precise position of the lower top edge 16 of each sock and transfers the output signal corresponding to the evaluation device 35, where it is optionally placed in a damping material or intermediate sensor. If the former is placed in the removal station 17 in the manner shown in Figure 1, that is, if the upper part of the foot in this position (in fact the only area) is located between the bands 20 and 21, the closed by a signal from the evaluation device 35 via actuator 36 and socks 15 are drawn from the former 12 in the direction of arrow 22 and are transported, guided in the part of the foot and the tip hanging down , in an upwardly inclined form towards the conveyor belt = hcrizer.tal 24, the near z-takes in a hanging form in the area below the tip or big toe 23. In such an area, the upper part 16 it is guided over the opening of the suction device 41, so that the loose strand ends are released and stretched downwards, so that they project over the top or sides of the sock. Then, they pass through the cutting device 43 and, optionally controlled by an optical sensor, are cut. Meanwhile, as a result of a comparison of the sensor signals for the successive socks, the evaluation device,:? He has determined that a sock is the longest. It has regained this signal in the corresponding order from storage or has been advanced in the form of a shift register, sue so now the action SiCr iente classification 25 via actuator 37 always associated with the pair located in the same. The sorting gate 12 is processed in such a way that it is always inserted into one of the specific channels 29, 30, for example, channel 29. In the latter, the The sock is transported to the position shown in Figure 1, where it reaches the optical sensor 35, which deactivates the conveyor belt 39 belonging to channel 29.

Figure 2 shows the position after the first sock of a pair has reached this position. The sorting hatch is now necessarily activated the other position was born, so that the next sock will still be located on the conveyor belt 24 which runs towards the other Catch 30 and is guided there to a position where, seen in the direction of transport, it is in a precise congruence parallel to the sock on channel 29 and then this band is also deactivated. To remove the pair of socks thus placed, through the 3S actuator, the clamping of the released canister s, so that the pair is released. It is normally flattened by a horizontal slide, which is for example movable in figure 1, perpendicular to the drawing plane and can be pushed by the slide towards a package, or it can be placed on a conveyor system for further processing, for example , horizontal stacking or wrinkling. It is also possible to transfer the pair of socks in a hanging form to an additional mechanism, for example, a hanging paper baler. Next, make sure that the longest sock is the outer sock and therefore cover the inner sock. Through the sensors 34 and their arrangement, it can also be determined if the pair will be absolutely congruent with the finger or heel, which depends on the particular packaging shape. Within the scope of the invention, numerous variants of the embodiment shown are possible. In this way, instead of band sections, it could also be possible to use other means of transportation, although the bands allow ideal, protective and reliable transportation. When referring to a sorting gate, this refers to any device for the random deflection of textiles in different paths. The invention has been described together with a sock grouping apparatus. However, it is also possible to group correspondingly other textile articles, where the same problems arise. Instead of different length dimensions, other criteria can be used for grouping purposes. Thus, for example, in the case of textiles of different color and design, deliberately, such a feature can be used as a grouping criterion. Also the visibility in the package is not the only possible reason for a grouping.

Claims (12)

1. An apparatus for grouping textiles, characterized in that it is transported successively in a transport path, based on the detectable criteria, with sensor means for determining the successive textile criteria and for generating sensor signals corresponding to the criteria, with a device for evaluation to compare the sensor signals with each other and to generate an output signal and with a classification switch for textiles controllable based on the output signal located on a transportation path.

2. The apparatus according to claim 1, characterized in that the sensor means includes sensors for detecting the length of the socks, and the generation of sensor signals according to the length of the apparatus being provided to form a pair of socks with a predetermined arrangement with respect to the individual length of the socks within a pair, the evaluation device comparing the sensor signals within a pair.

3. The apparatus according to claim 1, characterized in that the conveyor belt contains formers for the textiles, from which the textiles can be stretched in a stretched position through a conveyor belt by coupling the textiles bilaterally.

4. The apparatus according to claim 1, characterized in that the sorting switch is followed by a conveyor with at least two parallel bands, on which the textiles are juxtaposed in the desired arrangement and can be removed together through a device removal.

5. The apparatus according to claim 4, characterized in that the removal device is constructed to fold the group of textiles together.

6. The apparatus according to claim 1, characterized in that the evaluation device contains a storage for the signals, for example, a change register.

7. The apparatus according to claim 3, characterized in that the formers are straight formers shaped according to the shape of the textile, which passes through the stretched position, where the textiles are fastened in their upper area by the conveyor belt and are transported in a suspended form, inclined upwards.

8. The apparatus in accordance with the claim 3, characterized in that the sensor device is located near the trainers.

9. The apparatus according to claim 1, characterized in that near a transport path section that transports the textiles in a hanging form, a strand cutter is provided to remove the strand ends projecting from the textiles.

10. The apparatus in accordance with the claim 9, characterized in that the strand cutter contains a cutting device controlled by a sensor, with protected blades, driven by a motor, in the form of a hair cutter.

11. The apparatus according to claim 9, characterized in that the strand cutter contains a strand cutter device through the action of heat.

12. The apparatus according to claim 9, characterized in that the strand cutter is provided with a suction device for exposing the ends of the strands.