SU902115A1 - Device for manufacturing cases of cylindrical alkaline cells - Google Patents

Description

(54) DEVICE FOR MANUFACTURING CASES OF CYLINDRICAL ALKALINE ELEMENTS

one

The invention relates to the electrical industry and can be used in the manufacture of primary alkaline elements.

A device for the manufacture of cylindrical alkaline housing bodies is known, comprising a matrix, a die, the lower end of which is made with a nimbus, and a puller 1.

The disadvantage of this device is low productivity due to the fact that after the cylindrical body is pulled out of the Rondelli, it is necessary to trim the edges on a separate cutting machine, which increases the manufacturing time of the electrodes and labor costs, and also leads to an increase in the production area.

Closest to the proposed technical essence and the achieved results is a device for the manufacture of cases of cylindrical alkaline elements containing a punch with a nimbus, a matrix for drawing and a movable plate placed between the punch and the die 2.

However, this device is unreliable when the shells are being extruded.

from Rondel, since the presence of shock absorbers makes it difficult to set up the device in terms of ensuring the introduction of a cut punch into the metal to a depth of 0.6 mm. In this case, the shock absorber is quickly worn out, rubbing its initial elasticity, which contributes either to breaking the punch against the die, or not providing a broken edge of the housing.

The purpose of the invention is to increase reliability.

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The goal is achieved by the fact that the device is equipped with an annular knife made in the form of movable halves placed on a plate coaxially with a stretching matrix, and the ratio of the diameter of the knife hole to the punch rim diameter is 1.001-1.003.

FIG. 1 is a schematic diagram of the proposed device; in fig. 2 same, at the time of drawing the case; in fig. 3 and 4 - the same, in two positions at the moment

20 hull trim; in fig. 5 - the same, in the initial position.

Claims (2)

The proposed device is installed in a knee-lever press for drawing. It consists of an exhaust die 1 installed in a plate 2 of the press, a punch 3 with a rim 4 and pushing lugs 5 installed in the slide 6 of the press. A spring-loaded plate 7 is placed between the punch and the die, having a hole 8 located on the same axis as the stretching die. The plate is mounted on guide columns with the ability to move along them. An annular blade 9 is mounted on the plate, consisting of two movable halves 10 and 11. The halves of the knife are set in motion, for example, by means of a wedge or spring. The ratio of the diameter of the hole With the annular knife in a compressed position to the diameter of the die punch d is 1.0001 -1.003. If the ratio is less than 1.0001, then rapid wear of the tool occurs, if more than 1.003 a poor-quality trimming of the housings occurs due to the receipt of ragged edges of the housings. The device also contains stops 12. The device for manufacturing the body of the elements works as follows. The rodell is placed in the exhaust matrix 1. During the working stroke of the press slider 6, the punch 3 passes through the hole 8 of the plate 7 and the hole of the ring knife 9, the movable half 10 and 11 of which are in the open position. At the same time, under the action of the anvil 5, the plate 7 moves in the direction of the exhaust matrix. When a punch is applied to a Rondella, the metal begins to flow due to plasticity and takes the form of a billet of the housing 13. The walls of the billet of the housing, when pulled, enter the hole from the ring knife, which at this time is from the mirror of the matrix at a distance equal to the specified length of the housing . At the end of the draw cycle of the case of a half ring knife under the action of a copier, they close the case and with their sharp walls clamp the case around the circumference by the value of 1.0001-1.003 of the diameter of the rim of the 4 punch. Then the punch together with the body and the plate with the ring knife, the passage distance (f, returns to the initial position. The plate rests on the stops 12, and the punch, moving along the body length with its back of the rim, pinches the edge of the body and leaves the body the annular knife and plate. The cut body 14 falls into one collection and the waste 15 goes into another, the circular knife expands. The cycle is repeated. The proposed device is reliable in operation due to the absence of compensating elements, as well as simple direct interaction between a whip of a solid punch and an annular knife. Formula of the invention A device for making cases of cylindrical alkaline elements comprising a punch with a nimbus, a stretching matrix and a movable plate placed between the punch and the die, characterized in that, in order to increase reliability, the device is equipped an annular knife made in the form of movable halves placed on a plate coaxially with a draw-out matrix, and the ratio of the diameter of the knife hole in the compressed state to the diameter of the punch rim is 1.0001-1.003. Sources of information taken into account in the examination 1. Damie V. N., Rysuhin N. F. Production of galvanic cells and batteries. M., “Higher School, 1970 p. 168-176. 2. USSR author's certificate number 228565, cl. B 21 D 22/30, 1969.