DD233743A3 - DEVICE FOR THE SINGLE TEXTILE FLAECHEN IMAGE - Google Patents

Abstract

The invention relates to a device for separating textile Flaechengebilde, especially blanks for the tricot and garment industry. The inventive solution has set itself the task to lift the top layer of particular elastic textile Flaechengebilde and lay down for further processing by an areal dissolution of the adhesive forces, the device can be adapted with minimal technical effort to different fabric qualities. This is realized with a device which consists of a spring-mounted with gripping elements related hold-down. In order to support the separation process, additional technical means, preferably nozzles, are arranged. The device is particularly suitable for use in automatic sewing machines.

Description

embodiment

The invention will be explained in more detail with reference to an embodiment. FIG. 1 shows the overall view of the device.

On a support plate 1, a working cylinder 8 is preferably attached to ensure the vertical movement. By means of a bushing 2, which is fixed in the support plate 1, a guide rod 3, connected to the base plate 9, on which the second side of the working cylinder 8 is fixed, out. A holder 5, which serves for receiving preferably a working cylinder 4, one or more closing elements 6, preferably designed as a hollow cylinder, and one or more grippers 7 is on the front side of the base plate 9, with an opening for the anti-rotation 12 and a socket 10 is provided for guiding the guide rod 13, attached. Between the hold-down 14, on which the guide rod 13 and the anti-rotation 12 is fixed, there are one or more elastic elements, preferably formed as a spring 11, which are pushed onto the guide rod 13, which at the upper end by a securing element 24 the hold 14th connects with the base plate 9 and fixed in position.

The blank stack 20 is placed on the support 18 to the stop 17. The grippers 7 are lowered onto the blank stack 20 in such a manner that the blank holder 14 is placed on the uppermost layer 19 and the spring 11 is compressed to the uppermost layer 19 until the grippers 7 are put on. The grippers 7 are closed by closing elements 6 by the working cylinder 4.

After placing the gripper 7 on the top layer 19, the closing of the gripper 7 by the closing elements 6 and not covered by the blank holder 14 surface of the uppermost layer 19 is raised. The gripper 7 are moved with the uncovered portion of the uppermost layer 19 up, while the hold-down 14 remains to the expansion of the spring 11 in its initial position on the uppermost layer 19, so that by the relative movement between the grippers 7 and the leading edge 22nd the hold-down 14, the top layer 19 is stretched and between this and the adhering forces by the second, underlying layer 21 also creates a relative movement to overcome the adhesive forces between the two layers 19 and 21 and their release from each other in not by the hold 14th covered part leads. By further lifting the detected position 19, this is further solved. In order to prevent any folding over of the rear part of the second, underlying layer 21, depending on the size of the adhesive forces on ansich known nozzles 16, a defined air flow 23, which supports the process of solving, between the uppermost layer 19 and the second, underlying Position 21 introduced.

For further loading or. Processing the loosened blank is pulled in the horizontal direction over a table edge 15 and stored so processing or processing that open the gripper 7 and release the blank.

Claims (1)

Invention claim: Apparatus for separating textile fabrics in which gripping elements and additionally arranged nozzles are provided for detecting the uppermost layer and drives, preferably working cylinders, are arranged for the realization of the movements, characterized in that a resiliently mounted base plate (9) horizontally adjustable Nieerhalter (14) on which one or more grippers (7) are fixed, is arranged, and a guide rod (13) on which a spring (11) is pushed by a vertically adjustable securing element (24) the hold-down ( 14) connects to the base plate (9). For this 1 page drawing Field of application of the invention The invention relates to a device for lifting the topmost layer of a stack, in particular of blanks for the tricot and garment industry. Characteristic of the known technical solutions According to DD-PS 107649nst a method and an apparatus for the scattered feeding of particular textlien fabrics known. Here, a fold is formed with gripping elements on the sheet and lifted the fabric mt further means with the gripping elements, transported and placed in the correct position. The device for this method is characterized in that within a support ring by specially trained gripping elements wrinkling is brought about. The main disadvantage of this method and the device is that the resolution of the adhesive forces caused by the wrinkling occurs only partially in the region of the support ring, so that a large number of such elements in the area of the blank surface must be arranged for the areal cancellation of adhesive forces and thereby conditional the reliability is reduced, the necessary technical effort is unacceptably high and delivery of this device can be realized on other cut sizes only with great technical effort. According to DT-OS 3109615 a device for separating textlien parts is known. The invention relates to gripping elements which can be classified according to their mode of action into the group "fold-hold on the fold." With this device, only a partial dissolution of the adhesive forces in the region of the gripping elements is effected, the technical complexity of forming a fold According to DT-OS 2108401 a rapier head is described, which has similar mechanisms of action, as the aforementioned devices and thus has similar shortcomings and in addition the range of use of this device by material properties is limited. In DD-WP 224294 a blowing device for sheet feeder is described. With this blowing device flutter-free bowing is guaranteed. According to the invention, the object is achieved in that a blowing nozzle rotating in the region of the stack trailing edge about a vertical axis of rotation is arranged. The disadvantage is that the blowing device is arranged in the region of the stack trailing edge and not relevant for the separation of textlien parts is transferable. Such an arrangement of the blowing device on a textile blank stack would lead to the folding of the blank in the area of the stack trailing edge. Object of the invention The aim of the invention is to provide a device for separating in particular elastic fabrics, wherein a planar cancellation of adhesive forces is effected, this device can be adapted to different fabric qualities with minimal technical effort, which is given a wide application and the required technical Effort for the production of the device according to the invention is minimal. Explanation of the essence of the invention The object of the invention is to provide a device for separating in particular elastic textlien fabrics, which is able to cancel adhesive forces between the topmost layer of a stack and the underlying planar and can be adapted with minimal technical effort different fabric qualities and cut sizes. The device according to the invention consists of one or more gripping elements, which are in operative connection with a hold-down fastened to a base plate and which detect the fiber structure of the uppermost layer after being placed on the stack. By means of the one or more arranged on one or more guide rods elastic elements, preferably with springs, down hold a relative movement between the gripping elements and the front edge of the blank holder is introduced during lifting, the adhesive forces in the uncovered by the blank part of the stack between the picking up the top and bottom layers. While the gripping elements and the hold-down continue to move upwards synchronously, the uppermost layer is completely separated from the stack. By the securing element ν ird in the inventive device of the vertical and by moving the blank holder in its plane, the horizontal distance between the gripping elements and the front edge of the blank holder, depending on the fabric quality set. Together with the possibility of adjustment of the vertical and horizontal distance of the gripper from the front edge of the blank holder and a ansich known intermediate bubbles with an air flow through additionally arranged nozzles between the top layer dissolved at the leading edge and the underlying layer of the singling process is very safe. Further advantages of the invention are that no wrinkles are formed on the blanks by the gripping elements and thus reduce any visible traces by the singulation process, the surface quality of the blanks. Textiles with a wide variety of adhesive forces can be processed and the adjustment of the device to different fabric qualities is ensured with simple adjustments. Due to the uncomplicated structure, the production of the device is secured with little technical effort.