SU522531A1 - Device for perforating lamellar tapes of alkaline battery - Google Patents

Description

(54) DEVICE FOR PERFORATING LAMEL TAPES OF ALKALINE BATTERY

The invention relates to the production of alkaline batteries.

A device for perforating lamellar tapes of an alkaline battery is known, which contains a piercing roller with teeth angled at both sides at an angle of 38, in the plane of rotation of the front and rear edges parallel to the plane passing through the center of the roller, and the width of the annular grooves of the roller are the matrix is greater than the thickness of the sound of the spinning roller by two gaps equal to the thickness of the perforated material 1 | .

It is also known a device for perforating lamellar tapes of an alkaline battery; in KOTOpONf, the teeth are angled from the top to both sides at an angle of 55-60 (2 ,.

However, the holes B of the lamella strips, perforated with these devices, have burrs that, when bent during bending, partially close the holes, as a result of which the specific electrical characteristics of the battery are reduced. In addition, the teeth of the piercing rollers in both known devices do not allow holes in the tape to be smaller than 0.2x0.4 mm.

The aim of the invention is to increase the specific electrical characteristics of the battery and the reliability of the device.

For this, the bevel angles from the vertices are equal to 85-9 O, with the front and rear walls of the beats in the plane of rotation, respectively, be angled 5–15 and 30– 40, the edges of the annular projections are pointed, and centering roles are located at the ends of the roller matrix.

FIG. 1 shows a diagram of the design of the device; in fig. 2 the same, section A-A, FIG. 1 in FIG. 3 - the same, section BB, FIG. one; in fig. 4 - perforated tape.

A device for perforating lamellar ribbons of an alkaline battery; contents roller 1, roller matrix 2 and centering roller 3 located on the ends of the roller matrix 2.

The transverse profile of the front wall 4 (see Fig. H) of the tooth 5 of the pricking roller 1 is skhenchen from its top to both sides at an angle L equal to 85-90, forming two inclined cutting edges 6 (see fig, 2), passing into two vertical cutting edges 7, and in the plane of rotation, the front 4 and rear 8 walls of the tooth 5 are chamfered at angles

p and J, equal to 5-15 and 30-40, respectively, forming 5 gT at the apex of the tooth) an ample tip 9. The edges 10 of the annular protrusions 11 of the roller-matrix 2 are pointed. Between the annular protrusions are annular grooves 12.

The device works as follows. The perforated tape 13 is unwound from the reel and passes between the pricking roller 1 and the die 2. The tape 13 in the rollers 1 and 2 is guided by the centering rollers 3. In the process of perforation, the teeth 5 of the piercing roller 1 touch their tops of the surface of the perforated tape 13 at prices On the annular grooves 12 of the roller-matrix 2 and the tip of the top pierce the tape 1. When piercing the tape 13 rests on the annular projections 11 of the roller-matrix 2. With further rotation of the rollers 1 and 2, the cutting edges 6 of the tooth 5, which are beveled at an angle i. equal to 85-9 O, tearing the flap 13 towards the side walls of the annular protrusions 11. Turning further, the teeth 5 go deeper into the annular grooves 12 of the roller-matrix 2 and with their vertical cutting edges 7 cut through the perforated tape 13, forming a window the form of an irregular pentagon. The burr 14 formed by B as a result of this process (see Fig. 3) on the perforated tape 13 is folded down into the annular groove 12 of the roller-matrix 2 by the front wall 4 of the tooth 5. When the tooth 5 leaves the slotted hole of its front wall 4, it continues to bend the burr 14 , as a result of which it becomes vertical to the plane of the tape 13. So that the front wall 4 of the tooth 5, when exiting the hole, does not break the bridge between the adjacent holes, this wall is beveled at an angle P equal to 5-15 to the radius of the pricking roller 1. To form sharp faceted in 5 rshiny tooth, reducing the force of puncturing

and maintaining the strength of the tooth 5 in the radial load plane, the back wall 8 of the tooth 5 is scooped from its tip at an angle Y equal to 30-40, to the radius of the roller.

The forces acting in the process of perforation, in the direction perpendicular to the plane of rotation, are mutually balanced and do not bend the tooth 5.

If necessary, the burrs 14 are folded back to the plane of the tape 13 when pulled through a special device.

Claims (2)

The application of the proposed invention will improve the electrical characteristics of the lamella battery by increasing the percentage of opening the lamella tape to 16-18%, increase the service life of the lamella battery by reducing the size of the perforation holes and increase the durability of the piercing roller 1 by changing the shape of the teeth 5 Apparatus of the Invention A device for perforating lamellar tapes of an alkaline battery, comprising a piercing roller with teeth angled from the vertex to both sides at the same angle, and a roller mat Zu with annular protrusions and grooves, characterized in that, in order to increase the specific electrical characteristics of the battery and the reliability of the device, the bevel angles from the top are equal to 85-90, and in the plane of rotation the front and rear walls of the teeth are beveled, respectively, at angles 5- 15 and 30-40, the edges of the annular protrusions are sharpened, and the centering rollers are located at the ends of the matrix die. Sources of information taken into account in the examination: 1. Daso M.A. and others. Manufacture of electric batteries, M., Higher School, 1970, p. 341-342. 2. Avt.Sv. USSR № 350075, MKI H 01 m 35/00, priority 04/22/70. R / J FIG. 1 A A FIG. 2