SU50030A1 - Device for sealing round cans or boxes - Google Patents

Description

Apparatuses for closure of round cans or boxes are known, consisting of a horizontally rotating disk with pestles movably and vertically fixed in it, which serve to receive up to down cans to be sealed with lids of cans or boxes and move along the underlying fist surface up and down for pressing with such pestles, by means of a spring stop above them, which are put on the boxes of the lids.

The disadvantages of such devices include the fact that a sharp clamping of the lid into the can opening under the resistance of a strong spring often leads either to an improper fit of the lid on the box or to bending the edges of the lid up even with HI significant inaccuracy of putting the lid on the bank before sealing.

The present invention has in mind to eliminate this drawback and concerns the device of a spring stop, under the gradually increasing resistance of which the lid is pressed into the jar pressed together with the lid to the latter.

The drawing shows the proposed device. FIG. 1 shows a general view of the apparatus from above; FIG. 2-vertical section of one of the symmetrical parts of this apparatus; FIG. 3 shows the press box unfolded; FIG. 4 is a vertical sectional view of FIG. 3; FIG. 5 shows a portion of the bottom of the press box; FIG. 6 - part of the wall of this box in its horizontal section in the plane of the location of the clips; FIG. 7 - the upper part of the rotating disk of the pestle inserted into the nest, supplied with a matrix, in which the can is enclosed with the lid put on it.

The device consists of two unified and symmetrically located parts A and 5 (Fig. 1), driven from the same motor, each of which performs the same functions, i.e. in each of these parts independently from the beginning to the end, the whole process of closing the cans, supplied to it separately from the other part connected to it by one common drive shaft, proceeds.

Each of the two parts A and B of the apparatus has a following device.

On the vertical shaft 1, driven into rotational intermittent motion from the motor, a disk 2 is rigidly mounted, equipped with five sockets 3 with pestles 4 inserted into them, the upper end of which ends with a matrix 5 (Fig. 7), and on the lower protrusion from the disk they are rounded The gear 6 is seated at the end. The disk 2 is placed in a pressing box 7 fixedly fixed on brackets, the bottom of which, on a part of its circumference, has a wavy cam surface 8, which is a path for moving it around the pestles and consists of four one by one of the protuberances a, b, c, d (figs. 3 and 5) serving to lift the pestles upon them with intermittent rotation of the disk, the first three of which are intended to clamp between them and the top of the box 7 pestles with the mounted pestles cans with lids placed on the latter, and the fourth, with a longer horizontal protuberance d, serves to carry with pestles the cans already closed on them from the pressing box 7 to the outside. The edge of the box 7 is provided with a shelf 9 located above the top position of the pestles with banks with lids mounted on them and at the passage of these pestles above said first three protuberances of track 8 to which the shelf 10 is reinforced horizontal bar 10, loaded in three places, respectively above the convexities a, & c, springs 11 arranged in pairs in the direction of movement of the pestles, each subsequent pair consisting of stronger springs than the previous one (Fig. 3.4). The wall of the box 7, in places where pestles pass above convexes a, b, c, has three shifts 12 protruding on its inner surface, fixed at such a level that gears 6 engage on them when climbing pestles on these fist protrusions, thereby knocking each pestle around its axis for more uniform pressing of the lid into the can.

Two conveyor devices in the form of inclined glass slides 13 and 14 (Fig. 1) are mounted to the upper edge of the press box 7, the first of which serves to feed the cans 15 to the pestles, and the other to feed the lids 16 on the cans before closing the first the last. At the exit of the sealed cans from under the shelf 9 to the outside at the location of the fist convexity d, an ejector 17 is installed.

Device for closure works as follows. With intermittent time; puppies of the disk 2 are fed from one side along inclined descent 13 of can 15 (Fig. 1), and then with further turning of the disc and at the moment when the matrices with the cans already mounted on them are placed before descending 14, the last covers 16 are fed. from this descent, after which the pestles ,. the jar carrying a lid on its matrix, one after the other, passes under the spring strip 10 and extends three times upwards from the fist surface 8 and rotates simultaneously around its axis, thanks to the gear 6 that engage on the inner surface of the box 7, the studs 12 receive, at the same time, an increasing resistance from above by the strap 10 loaded by the increasingly strong springs 11 along the path of the pestles, as a result of which the cover 16, first receiving little from the first pair of springs pressing it firmly into the can opening, then gradually, as the pestle passes under the entire bar 10, squeezes into the can hole and pest until it comes out from under the bar 10, extends for the fourth time from the last fist convexity d, pulls out the plugged the can is taken out, the latter being removed by the ejector 17 from the pestle matrix, which comes again under the inclined descent 13 to deposit the next can for it into its matrix, after which the process is repeated.

The subject matter of the invention.

Claims (2)

1, A device for sealing round cans or boxes, consisting of a rotating in the horizontal plane disk with a movable and vertically fixed on it pestles, serving to accept for lids to be sealed with lids of round cans or boxes and moving along the fist surface below them up and down to be pressed with such pestles, by means of a spring stop placed above them, which are worn on the boxes of lids different by the fact that in order to gradually increase the force of pressing the lids into the opening of the vessel they are plugging, the Above the pestles, the spring-loaded punch is made in the form of a plate having a shape corresponding to the location on the pesto disk and loaded along the path of the latter with ever stronger springs. 2. An embodiment of the device according to claim 1, characterized in that the spring plate located above the pestles is fastened inside the box 1, provided with a wavy bottom serving as a fist surface for the vertical movement of the pestles. Fig2 figl Fig.7 Fig.6 5 JL.