SU910434A1 - Apparatus for transversal reinforcing - Google Patents

Description

(5t) DEVICE FOR TRANSVERSAL ARMORING

The invention relates to equipment for transversal reinforcement of shells and strength elements of structures made of polymer composite materials: glass, boron, carbon, and organic plastics - and can be widely used in the aviation, ship and automotive industries and a number of other industries. At present, in the manufacture of structures and shells, due to the insufficient shear strength of polymeric composite materials, transversal reinforcement is introduced into the transverse separation. To reinforce flat structural elements, a device is used that contains a base, perforated paper with holes for reinforcement and a solid seal. However, manufacturing the product with this device is time consuming and also requires additional machining after curing, since it is necessary to trim the jumpers of the station . U-shaped fittings. The closest in technical essence to the invention is a device that includes an armature dispenser, a clamping element with magnets for orientation and insertion of reinforcement, and a tempering mechanism for tape material 2. A disadvantage of the device is the difficulty of adjusting the required frequency of the transverse (more precisely, radial) reinforcement and creating the direction of the reinforcement, since, when pressing with a pressure roller, the transversal reinforcement acts, besides the useful radially directed force, which introduces it into the salt of the material, the tangent The special force that bends the particles of the transversal reinforcement, which changes the predetermined position of the reinforcement and degrades the product quality.

39

The aim of the invention is to improve the quality of the reinforcement.

This goal is achieved by the fact that in a device for transversal reinforcement, including an armature dispenser, a clamping element with magnets for orienting and embedding the reinforcement, and a tempering mechanism for the tape material, the clamping element is designed as a periodically turning polyhedron whose perpendicular magnets are mounted. The polyhedron is equipped with a drive of reciprocating movement in the direction of reinforcement.

FIG. 1 shows a device, side view; in fig. 2 - View A along the direction of movement of the reinforcing material.

The device for transversal reinforcement contains a valve dispenser 1, a pressure element 2 with a gearbox. 3. Element 2 is made in the form of a polyhedron, whose prependicular to the faces of which are electromagnets are installed. The magnetic field serves to orient and hold the reinforcement in the form of a short-wavy ferromagnetic filler and is created by electromagnets formed by T-shaped cores 5c with wound coils 6 and fixed to base 7.

The actuator 3 of the element 2 contains mechanisms for reciprocating and periodic rotational movement, kinematically associated with the clamping element. Mechanisms such as the Maltese cross can be used to communicate the clamping element with intermittent rotational movement. To provide a reciprocating movement of the element 2 to the reinforcing material 8 and back, for example, a cam mechanism (not shown) is used.

The device works as follows.

From the valve the fittings in the form of a short-fiber ferromagnetic filler k (for example, steel wire sections) are fed to element 2, where they are oriented in a magnetic field created by electromagnets in the form of a coil wound on the cores 5, and installed perpendicular to the grand element 2.

Element 2, which is, for example, an octahedron, is set from the mechanism of the periodic rotary motion of the drive, rotates by 5 angle 135. As a result, the valve dosing unit fits the fourth face of element 2, and the first edge with the reinforcement perpendicular to it and oriented by the magnetic field

O rotates to a reinforcing material, such as glass tape. At the end of the rotation, the reciprocating drive mechanism informs the forward movement of the axis of the element 2,

5 approaching it to the reinforced material. The reinforcement is introduced into the layers of reinforced material. After the reinforcement has been inserted to the required depth, the clamping element returns

20 to its original position. The reinforcement remains due to the strength of the friction in the reinforced material.

Then the cycle of operation of the device is repeated.

25 By adjusting the speed of the actuator to the number of valves supplied from the metering device and the speed of movement of the material being reinforced, it is possible to ensure the required density of distribution of the valves.

30 The use of the invention makes it possible to obtain tapes reinforced in the transverse direction in both wet and dry winding on existing winding aggregates,

5 and also get | transversely reinforced laminated semi-finished product for the subsequent pressing, winding or shaping of products from polymer composite materials. Wherein

40, reinforcement quality is enhanced by axially applying a force that introduces transversal reinforcement into the material layers.

Claims (1)

Invention Formula A device for transversal reinforcement of polymeric composite materials, including an armature dispenser, a clamping element with magnets for orienting and embedding the reinforcement, and a tempering mechanism for the tape material, which, in order to improve the quality of the reinforcement, the clamping element is redrawn in the form of a periodically turning polyhedron perpendicular to the gran