RU1836225C - Method of winding of cupola-shaped shells made of composite material and an appliance for its execution - Google Patents

Abstract

The invention relates to a technology for manufacturing dome-shaped parts from composite materials by winding. SUMMARY OF THE INVENTION: a winding method consists of using a system of supporting threads to prevent the stacked nonwoven tape of the composite material from sliding to the mandrel pole. The thread system is located on the axis of the mandrel of a one-sheeted hyperboloid of revolution, the bases of which are located on one side of the mandrel and on the other on a special thread holder, with the smallest cross-section of the thread system located at the place of laying the tape. The system of filaments rotates around its axis with the speed of rotation of the mandrel and has the possibility of longitudinal and around its axis of movement. The device according to this method comprises a non-woven tape shaper with a rotatable yarn stacker and a mandrel rotation mechanism, a tailstock with a rotatable support on which the support thread holder is placed. The thread holder is moved by means of rotation mechanisms and angular rotation of the quill in the tailstock relative to the axis of rotation of the mandrel. The pinole contains a brake clutch, for example an electromagnetic one. The mandrel and the thread holder have a synchronization mechanism made, for example, in the form of a common power take-off shaft. 3 C.p. f-ly, 3 ill.

Description

The invention relates to technology and equipment for the manufacture of domed parts from composite materials by winding.

The aim of the invention is to improve product quality.

Figure 1 presents the devices, a General view; Fig. 2 is a kinematic diagram of a device; in Fig.3 is a diagram of the obtained

the structure of the material when laying it on a hemispherical mandrel.

The device for implementing the method (see FIG. 2) includes a bed 1, a shaper 2 of non-woven tape 3 placed on the running frame 4. The thread holder 5. placed on the back headstock 6 is provided with supporting threads 7 fixed to the hooks 8 of the mandrel 9 and the stitches 10 thread holder 5. The thread holder 5 is mounted on the pins 11.

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The device has a common shaft 12 for selecting a powerful tape 3. The use of a support system to ensure synchronization of the carbon support threads provides the outward rotation speeds of the mandrel 9 and the pinole to form a homogeneous structure 11, which is equipped with a coupling 13. A thread thread of a domed body forms due to the palm 14 is placed on the running frame 4, 5 to increase the stability of the tape 3 during laying. The method and operation of the device is its implementation on the mandrel 9.

is as follows. EXAMPLE In the claimed device

The shaper 2 of the tape 3 forms it, the product is wound onto the mandrel no- by fixing the axial threads on the hemispherical shape in front of the immediate ring threads. The ring W is impregnated by vein winding, the yarns are tensioned, in particular, by the method of cross-layer-system of support yarns 7 on hooks 8, 10, but along the longitudinal-transverse winding of the wire 9 and thread holder 5, The system is pre-supported. The axial filament yarns 7 in the initial position have been wetted on the mandrel 9 in excess due to the minimum diameter equal to the maximum diameter from the annular yarns. They can be used with a 15 mandrel diameter. This is also ensured preliminarily due to the installation of the pin 11 and the angle of the rejected yarn. To prevent the thread holder 5 from turning in the required slip of the belt 3, a deflection system is used. The second preparatory operational thread 7, fixed on the mandrel 9 and this is the tension of the threads of the non-woven thread holder 5, placed on the pin 11 20 of the tape 3 on the mandrel 9. The winding produces a tailstock 6 and is synchronized with after starting the machine after starting the rotation speed, which is driven by the mandrel 9, which is for the shaper 2 of the nonwoven tape 3. is provided, for example, by the common mandrel 9 and the thread holder 5, with the shaft 12 turned on. A separate feed mechanism of the shaper 3 can also be used l emy NC. The pin 25 and the thread holder providing the required 11 has the possibility of programmable angles of rotation, extension along the axis of the mandrel 9. To ensure that after winding the tape 3 to the mortgage

Claims (1)

As a result of the angular rotation of the thread holder, the part 15 or the mandrel pole can be used (see FIG. 3), a stepper motor can be used or the pick-up stops, zero is equipped with a brake (friction) 30 Formation of the sheath in descending direction - clutch 13, for example, electromagnetic. from a larger mandrel diameter to a smaller one, the clutch is used to brake the yarn to obtain the correct holder with respect to the mandrel axis by means of a roof-type material structure that shuts down for a given time .. in combination with the support nits, the yarn spreader 14 provides 35 programs reinforce axial meridional rotation and laying of the tape 3 in the appropriate reinforcement of the material, with the shape of the mandrel. Rotation The lack of prevention is accomplished, for example, by stepping the tape special for each child. The supply of the tape 3 to the desired location on whether the tooling elements is advantageous under the conditions of the mandrel 9 is carried out by moving 40 small-scale production, or the running frame 4 in the vertical and horizontal formulas of the invention in the horizontal direction by turning on 1. The method of winding dome-shaped stepping motors of the respective walkways of composite material by means of outgoing screws. The change in the shape of the described formation of the tape, laying it on a rotating mandrel from a larger diameter to rotation around the support thread system of the hyperboloid 45, is ensured due to the longer, with the stop of each last movement of the thread holder, moving in the direction of movement of the thread holder pins with running windings thrust elements mounted by a screw driven by a stepper motor evenly around the perimeter of the mandrel with (- see Fig. 2) with simultaneous rotation of the thread-50 with the possibility of synchronous rotation with s and the holder around its rotation about the B .osevogo movement, characterized It is the hyperboloidal winding that is dumb. that, in order to improve the quality of the woven tape on the domed mandrel, the thrust elements are made in the form of a descending one, with support for the non-woven stretched yarns, one end of which is slipped away, a supporting thread system 55 is attached to the end of the mandrel, and the other - behind the mandrel located around the perimeter of the mandrel outside its second end, along its axis with pressing to the surface2. A device for winding a dome-shaped hyperboloid of rotation of wound shells from a composite fabric and forming an abutment with the end of each one, including a ribbon former with a milking yarn, prevents the net-sliding of the non-yoke-rotating-mandrel. thrust elements uniformly placed around the perimeter of the mandrel with the possibility of rotation and axial movement, characterized in that, in order to improve the quality of the products, it is equipped with a tailstock carrying a quill with a thread holder of the supporting threads, connected to means of its rotation and axial movement, and the mandrel is installed on the console from the opposite side pins. 3. The device according to claim 2, characterized in that the mechanism of angular rotation of the pin with the thread holder is made in the form of a friction clutch, for example, electromagnetic, 4. The device according to claims 2 and 3, with the proviso that the drive for rotating the mandrel and the thread holder is equipped with a common power take-off shaft. 8 , 7 FIG. 1 Figure 1 Fig.Z