• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1. A method of joining flexible flat materials, in particular, joining parts with a combination of straight and curved contour seams, the orientation of parts being made during the movement process, and the sewing process is monitored by sensors, and so on, one of the sensors is provided with control signals for switching on the movement of the centering needle and the presser foot, and also the supply of air to the orienting nozzle mounted on the support plate of the sewing part, and the other sensor signals for the termination of movements of the needle OF DATA upraised elements and supplying meat to the nozzle. about
    公开号:SU1112076A1
    申请号:SU817771680
    申请日:1981-03-03
    公开日:1984-09-07
    发明作者:Хорст Аурих；Бернд Фукс；Клаус Гроссе
    申请人:Феб Комбинат Текстима (Инопредприятие)；
    IPC主号:
    专利说明:

    2. A device for joining flexible flat materials, by means of which the workpiece is fed - by means of guide elements to the area of the sewing machine's supporting substrate, containing curvilinear guide elements for stitching a curvilinear seam section, and the sewing process is controlled by means of signal sensors according to claim 1, which is different in that the presser foot 9 is connected with a lifting mechanism controlled via the signal sensors 8 and 20 and on the support plate 3 on the side of the presser tabs 9 are placed with a blower nozzle 14, the hole of which is directed in the direction of rotation of the workpiece 2, and in the area of the presser foot 9 there is a centering needle 10 that is adjustable across and along the transport direction, and the inclined material pusher 16 ends in the area of the transport mechanism of the sewing machine .
    3. The appliance according to claim 2, wherein the signal sensors 8 and 20 are mounted stationary or movable along and / or across the transport direction of the workpiece 2,
    4. Apparatus according to claim 2, characterized in that for raising the centering needle 10 there are guide 12, as well as 11 enthema- nal cylinder 1 1 or an electromagnet or electric motor with a profiled cam.
    5. Device according to claim 2, characterized in that the profile of the rack rail of the sewing machine 13 is inclined towards the centering needle 10.
    6. Device according to claim 2, the difference is that the lifting mechanism for the presser foot
    9 for carrying out a dosed lifting of the latter to a predetermined height, is a pneumatic cylinder 1 9 or an electromagnet, or an electric motor with a cam, which either directly or through a system of levers 18 are connected to a presser foot 9,
    7. The device according to claims 2 and b is distinguished by the fact that under the pneumatic cylinder 19 or an electromagnet in the center there is an adjustable stop 25.
    8. The device is in accordance with clause 2, which is such that the pusher 16 for the material consists of inclined with respect to the supporting plate 3 shtanga 21 and located at one end of the last friction element 22, the other the end of the rod. 21 is connected to the pneumatic cylinder.
    The invention relates to a method and apparatus for joining flexible flat materials, mainly for the automatic sewing of clothing parts, on which straight and curved contour seams alternate.
    A device for automatic sewing of trouser pocket trousers (GDR patent No. 71932), i.e. parts in which linear and curved seams alternate. This device consists of a transport mechanism and a bending bar, which are located in front of the sewing machine, as well as an additional conveyor within the sewing machine with a guide element for stitching curvilinear shvov. The workpiece is transported by the suction element of the transport mechanism moving in the direction of transport to the bending bar which bends the part once. Then, the mobile transport element is lowered onto the billet storage of the pocket, transporting the last 30 stitching times of the first straight seam. When switching from a straight seam to a curvilinear postproduction, the part is transported by a special guide element. Stitching
    a creep (| .pinear1 seam, the guide member rises above the pocket sacking, and the transport mechanism behind the sewing machine guides the part to the next stitching of the straight seam.
    A device for joining the sackcloths of the back pockets of trousers is known, where the textile material and the webbing are fed from the rolls. Both parts are cut, folded, and automatically cut. At the same time, during the entire process of joining, the parts from above and below are held and guided by the counter support and the friction wheel. For stitching a curved seam, a special element is lowered, which is fixedly positioned near the sewing head, fixes the center of the circle on the workpiece.
    The disadvantage of these devices is that they are intended only for making sackcloth pockets of a certain shape and size. Such devices may not be used for other purposes. In addition, there are special guide elements for stitching straight seams. All this requires a large technical outlay, since additional drives and guide elements are used.
    Sewing machines are known that connect- ing sewing parts along a clamping plate, which can be straight or curved, laid out the application of the Federal Republic of Germany No. 2009627 and patent No. 1104804
    However, these machines are not suitable for stitching in the form of a circular arc. In addition, at the end of the sewing process, the presser bar must be returned to its original position, which means that it is easy to manufacture, and thus an uneconomic principle of operation.
    Known sewing machines that work with template-like clamping elements (accepted for Germany No. 1485250, accepted for Germany No. 1924938 and laid out for Germany No. 2154033).
    (The lack of automatic sewing data is that with each new change of shape new patterns are required, resulting in additional investment and maintenance costs.
    As a result of this economic problem, the scope of such
    Automaker sewing is limited in most cases to the manufacture of form-forming small parts.
    Sewing machines are known which are equipped with straight working or turning grippers for guiding the material, (exemplified application of the Federal Republic of Germany No. 2721510).
    The disadvantage of these mechanical grippers is that their action must occur synchronously with the transport of the sewing machine, which entails equipping the grippers with complex drives. A particular difficulty is the transition from a straight seam to a curvilinear one. In order to get clean, and avoid breaking the thread, you need a very large acceleration for turning the grippers. The large inertia force flowing from this also leads to structurally complex drives.
    All known devices require technical means for guiding parts when stitching straight seams.
    The purpose of the invention is to provide simplicity of construction and a short changeover time when replacing parts with different configurations.
    The invention is based on the task of developing a method and device for sewing alternating straight and curved seams, so that it is possible to automatically process a large number of sewing parts of various configurations using a minimum of technical means, in particular, to refuse additional guiding elements during the sewing process. straight seams
    According to the invention, the problem is solved by the fact that one or several signal sensors are located behind the sewing machine, each of which, depending on the size and configuration of the workpiece, controls the lifting elements for the centering needle and the presser foot, as well as the blowing nozzle. elements are mutually synchronized. One or several signal sensors are also located in front of the sewing machine, each of which, when re-blocked by a part, controls the switching elements, which in turn simultaneously transfer the lifting elements to the centering IHL1. and presser foot to the starting position and stop the flow of air to the blowing nozzle. The signal sensors described in front of and behind the sewing machine are mounted either stationary or movable along and / or across to the transport direction. The hole in the base plate for the material being sewn on the blow nozzle is directed in the direction of rotation of the workpiece, thus ejecting an air stream from it supports rotation of the part during the entire process of sewing curved seams. In the limit of the transport element of the sewing machine ends an inclined mounted pusher for The centering needle is positioned across and along the direction of transporting the part within the presser foot. needles on various places. The centering needle is lifted along the guide by a pneumatic cylinder, an electromagnet or a cam disc electric motor. The gear rail of the sewing machine is inclined toward the needle. The lifting mechanism of the presser foot consists of a pneumatic cylinder, an electromagnet or an electric motor with a cam. In this case, the lifting mechanism is connected either directly or through a system of levers with a presser foot. In order to raise the presser foot evenly, the lifting mechanism is equipped with a travel stop height-adjustable. It is advisable to place a travel stop under the lifting element. When stitching straight seams, transport or guided elements are not used. The transport and handling of the guides, the needle of the sewing machine and the mechanism for moving the material of the sewing machine are guided. When stitching seams with a rounding, the needle is lowered onto the treated detf1, thereby centering it. At the same time, a stream of air enters from the blow nozzle in the direction of rotation of the part and the presser foot is slightly raised so that the transport mechanism can grab and move the material. As a result of transporting the piece with a needle and the mechanism / displacement of the material of the sewing manshna, and also by centering the centering needle, a curvilinear seam is drawn around a given circumference. The air jet from the blow nozzle and the inclined pusher support the course of such a seam. If it is necessary to stitch the part with curvilinear seams of different radii, then centering needles are used in different, respectively spaced places on the inclined material to the substrate for the part. It consists of a rod, at one end of which there is an attached friction element relating to the workpiece. The other end of the rod is connected to a pneumatic cylinder. After the stitching of the seam on the part is completed, the engine pushes the last one further, so that it would be more convenient to cut the thread with a cutting mechanism. The substrate for the workpiece to be molded is either horizontally or n inclined towards the sewing machine. Inclination contributes, in particular when stitching straight seams, to the workpiece sliding in the direction of the sewing machine. All sewing operations are fully automatic. The described device can also be equipped with automatic mechanisms for removing and feeding parts that are controlled by existing signal sensors. FIG. T shows the proposed device, top view, FIG. 2, the same side view. In front of the sewing machine 1, viewed in the direction of transporting the part 2, on the edge of the support plate 3, where the sewing machine 1 is also located, are the guide stops 4 "Within the guide stops i- there is a nozzle 5 above the plate 3, which the holes 6 on the support plate 3 interacts with the jet catching nozzle 7 under the base plate Zo Sogsho 5 and the jet catching nozzle 7 create a kind of signal sensor 8. The signal sensor 8 is movable in the direction of transport and across last one. The sewing machine 1 on the side of the presser foot 9 above the support plate 3 is equipped with a centering needle 10, which is adjustable in the direction of transport and across the latter. The centering head 10 is raised and lowered by means of a pneumatic cylinder 11. A pneumatic cylinder 11 and a guide 12 are placed on the head of the sewing machine. The toothed rail of the sewing machine 13 is inclined towards the centering needle 10. Next to the sewing machine 1 on the disputed substrate 3 there is a blowing nozzle 14, the air jet of which is directed towards the rotation of the part 2.
    The centering needle 10, the conveyor of the sewing machine 13 and the blowing nozzle 14 are the technical means that helps to stitch curved seams. When stitching the straight seams, the workpiece is transported only with the help of a sewing needle and a toothed rack of the sewing machine 13. Another pneumatic signal sensor 15 is mounted in front of the centering needle 10, which through the hole 6 with another nozzle 5 interacts with the jet catching nozzle 7.
    Within the clamping plate 9, a pneumatically operated material pusher 16 is operated, consisting of a rod 21, the end of which is at the pneumatic cylinder, and a friction leg of the element 22. There is a special cutter 17 located behind the presser foot 9 to cut the thread.
    The presser foot 9 is connected through a system of levers 18 with a pneumatic cylinder 19, which is rigidly attached to the sewing machine. Under the lifting element is an adjustable stroke stop 25, which is manually set depending on the thickness of the material.
    Behind the sewing machine 1, a signal sensor 20 is located at the rear end of the support substrate 3, which is similar in design to the signal sensor 8. The signal sensor 20 is also movable and can be installed along and across the transport direction of the workpiece. By positioning the signal sensors 8 and 20, as well as the centering needle 10, it is possible to process parts of 2 very different configurations.
    In other design options, electrical signal sensors, such as photocells or electromagnetic signal sensors, are used. Preferably, but not necessarily, the same type of signal sensors are used for one installation.
    Other design options include attaching the centering needle 10 on the sewing machine .1. For example, it can be attached on a separate stand or on a support substrate 3. Instead of a single centering needle 10, several needles 10 can be fixed rigidly or movably, then several curves with different radii can be stitched on a single workpiece 2. Instead of the pneumatic cylinder 11, mechanical or electromagnetic means can be used to raise and lower the centering needle 10. This also applies to the pneumatic cylinder 19. In addition, the means for lifting the presser foot 9, for example the pneumatic cylinder 19, can be mounted directly to the presser foot 9 Having several signal sensors 20 at various points, it is possible to stitch and sweep straight seams of different lengths on the workpiece 2.
    Another constructive option provides for the inclined position of the entire support substrate 3 in the direction of the sewing machine 1.
    The principle of operation of the junction for connecting flexible flat materials is as follows.
    The entire connection process proceeds automatically. Each part to be machined 2 or more parts that lie precisely between each other and are connected to each other by stitching, by means of a feeding device, which consists of suction nozzles 24 directed in guide slots 23 along the direction of transport, is transported in a sewing machine MamiiHe 1 .
    During the entire transportation until the parts 2 are caught by the sewing needle, the latter are held by the suction nozzles 24. The gap e is in a straight line, with one straight edge of the parts 2 constantly touching the direction of the stops 4 (position 26). As soon as part 2 arrives at the signal sensor 8, due to the interruption of the air flow from the nozzle 5, the switch is activated and the sewing machine 1 is turned on so that, when the part 2 is seized, the needle reaches full
    911
    revolutions ,. Now, the sewing machine 1-1 zaves the straight seam in a zavedine manner, with the part 2 being transported straight to the signal sensor 20 by means of a sewing needle and a toothed rack (position 27).
    During the forward positioning, the signal sensor 8 releases it again and the signal sensor 15 interrupts. As a result, no signals are received. The air jet of the signal sensor 15 during the entire sewing process is interrupted by part 2.
    As part 2 terminates the airflow of the signal sensor 20, the pneumatic cylinder 11 is filled with compressed air and the centering needle 10 is lowered onto the workpiece 2, Pneumatic cylinder 19 with the same signal as pneumatic cylinder 115 is compressed with air. As a result, through the arm of the levers 18-, the presser foot 9 rises to a height depending on the thickness of the material so that the toothed rail of the sewing machine 13 can still work. For this purpose, a stroke limiter 25 is set in advance. The signal from the sensor 20 simultaneously controls the blowing nozzle 14 so that an air stream comes from it in the edge of the rotation of the workpiece 2. Centering the workpiece 2 by the centered needle 10, a targeted air flow from the blowing nozzle 14 between the support plate 3 and part 2, a slight elevation of the presser foot 9 in cooperation with the toothed rack of the sewing machine 13 all this contributes during the subsequent transport ation of the sewing needle and a transport mechanism of the curved seam stitching,
    The workpiece 2 is turned around. In a circular arc around the centering needle 10. In the process of stitching the circle seam, due to the turning of the workpiece 2, the signal sensor 20 is released again. No further signals are received. The arcuate line lasts until the workpiece 2 again - does not block the signal sensor 8 and does not interrupt the flow of air. As a result, the contact element is activated, the air is removed from the pneumatic cylinders.
    07610
    11 and 19, the air supply to the blowing nozzle 14 is interrupted. This helps to raise the centering needle 10 and lower the presser foot 9 in sa, my lower position, and the air supply is also interrupted to maintain the rotary movement of the workpiece.
    Now the next line begins.
    This is due to the transport of the sewing needle and the transport mechanism of the sewing machine 13 (item 28),
    At the same time, the signal sensor 8 of the detector is released, but does not produce any signals. As a result of the release of the signal sensor 15 through a time relay, a contact element is activated, which supplies compressed air to the pneumatic cylinder of the material slider, the friction element 22 at the end of the rod 21 pushes the workpiece 2, which is now in position
    5 29, in the direction of the mechanism 17 for cutting the thread. Meanwhile, the caMbnvi thread enters the knife area and is cut. The same signal from the sensor 15, delayed by the time relay, switches off the sewing machine 1. In addition, the same signal can additionally be controlled by a stacker, which is placed behind the sewing device.
    If parts 2 of a different configuration and size are to be stitched, then the signal sensor 20 must be manually preset according to the length of the straight seam, if necessary, several signal sensors 20 can be used. In the same way as the signal sensor 20, the centering needle 10 is installed corresponding to the radius of the circle of the curve. Here, too, with different radii of the circumference of the curve, it is necessary to use several centering needles 10,
    In addition, the signal sensor 8 is preliminarily set depending on the total speed of the sewing machine and the stroke of the pneumatic cylinder 19 depending on the thickness of the material.
    This invention is applicable for stitching seams or overlay
    sewing parts, on which straight and curved seams alternate.
    26
    权利要求:
    Claims (8)
    [1]
    COMPOUNDS OF FLEXIBLE FLAT MATERIALS. 1. A method of connecting flexible parts with a combination of straight and curved contour seams, moreover, during the movement, the parts are oriented and the sewing process is controlled by sensors, which means that one of the sensors gives control signals to enable movement of the centering needle and pressure legs, as well as the air supply to the orienting nozzle mounted on the base plate of the sewing part, and another sensor signals the cessation of movement of these elements of flat materials, in particular disconnect the air supply to the nozzle.
    SU <„> 1112076
    Fig /
    1 1 12076
    [2]
    2. A device for connecting flexible flat materials, with which the workpieces are brought into the zone of the supporting substrate of the sewing machine by means of guiding elements, containing curved guiding elements for sewing a curved section of the seam, the sewing process being controlled by signal sensors according to claim 1 characterized in that the presser foot 9 is connected with a lifting mechanism controlled via signal sensors 8 and 20 and on the support plate 3 on the side of the presser la PCB 9 there is a blasting nozzle 14, the hole of which is directed in the direction of rotation of the workpiece 2, and in the area of the presser foot 9 there is a centering needle 10, adjustable transversely and along the direction of transportation, and the inclined pusher 16 for the material ends in the area of the transport mechanism of the sewing machine 13 ..
    [3]
    3. The device according to claim 2, characterized in that the signal sensors 8 and 20 are mounted motionless or movable along and / or across the direction of transportation of the workpieces 2.
    [4]
    4. The device according to claim 2, characterized in that for raising the centering needle 10 there is a guide 12, as well as a pneumatic cylinder 1 1 or an electromagnet ^ or an electric motor with a profile cam.
    [5]
    5. The device according to claim 2, characterized in that the profile of the gear rack of the sewing machine 13 is inclined towards the centering needle 10.
    [6]
    6. The device according to claim 2, which is characterized in that the lifting mechanism for the presser foot
    9 for performing a metered lift of the latter to a predetermined height is a pneumatic cylinder 1 9 or an electromagnet or an electric motor with a cam, which are either directly or through a system of levers 18 connected to the presser foot 9.
    [7]
    7. The device according to claims 2 and 6, characterized in that under the pneumatic cylinder 19 or an electromagnet in the center is an adjustable stop 25 of the stroke.
    [8]
    8. The device according to claim 2, characterized in that the material pusher 16 consists of a rod 21 inclined with respect to the support plate 3 and located at one end of the last friction element 22, the other end of the rod 21 is connected to a pneumatic cylinder.
    类似技术:
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    US5599410A|1997-02-04|Method of and device for making labels
    US5123367A|1992-06-23|Method and apparatus for forming and stacking a folded sewn ply such as a V-top shirt pocket
    US4034690A|1977-07-12|Apparatus and method for forming belt loops
    US3793968A|1974-02-26|Fabric, joining and sewing device
    US3933105A|1976-01-20|Shirt front assembly, method and apparatus
    同族专利:
    公开号 | 公开日
    DD153978A3|1982-02-17|
    CS193381A1|1984-04-16|
    HU184424B|1984-08-28|
    CS231590B1|1984-12-14|
    RO85924A|1985-11-30|
    DE3102278C2|1989-03-09|
    DE3102278A1|1982-02-11|
    YU41764B|1987-12-31|
    RO85924B|1985-01-30|
    YU44781A|1983-12-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2627882C1|2016-04-19|2017-08-14|Акционерное общество "Обнинское научно-производственное предприятие "Технология" им. А.Г. Ромашина"|Method of producing article from polymer composite material|DD71932A|
    DE2522422C3|1974-05-15|1981-01-15|Manufacture Francaise Des Chaussures Eram S.A., Saint-Pierre-Montlimart, Maine-Et-Loire |Device for automatically guiding the sewing material of a sewing machine|
    FR2348993B2|1976-04-21|1980-12-12|Eram Chaussures|
    DE2721510C3|1977-05-12|1980-03-27|Kayaba Industry Co., Ltd., Tokio|Automatic sewing machine|
    DE2917950C2|1979-05-04|1982-04-22|Pfaff Industriemaschinen Gmbh, 6750 Kaiserslautern|Device for automatically guiding the sewing material on a sewing machine|US4425858A|1982-02-26|1984-01-17|Amf Incorporated|Means for processing sheets of material|
    DE3317774A1|1983-05-16|1984-11-22|Johannes Neuhofen Krems Sahl|Device for sewing a lining onto strip-shaped workpieces, such as waistbands, belts and the like|
    DD258430A1|1987-03-12|1988-07-20|Karl Marx Stadt Tech Hochschul|DEVICE FOR FEEDING CUTS|
    JPH0342917B2|1987-04-28|1991-06-28|
    IT1231885B|1987-10-09|1992-01-15|Rockwell Rimoldi Spa|MULTI-PURPOSE SEWING MACHINE.|
    ES2075794B1|1993-06-18|1998-03-01|Betere Fab Lucia Antonio|PROCEDURE FOR THE HANDLING AND PERIMETER SEWING OF UPHOLSTERED SETS.|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DD22036380A|DD153978A3|1980-04-10|1980-04-10|METHOD AND DEVICE FOR MOUNTING FLEXIBLE FLAT FORMATS|
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