SU5341A1 - Shears for cutting sleeves on sleeve machines - Google Patents

Description

For installation of the liner to any length of liners, adjustable sleeves are used in the direction of motion, going with a continuous shell for liners, cutting devices. The permutation is made in such a way that it is possible to make a cut at an arbitrary variable distance, from the device for twisting the mouthpiece (warmer), in the direction to which the continuous sleeve shell moves. To accomplish this, it is necessary to rearrange the entire support for the scissors, which inevitably leads to rearrangements of the transmission parts. According to the present invention, only one shear is rearranged relative to their support or the carriage carrying them. The accomplishment of this task is achieved in such a way that the scissors carriage is provided with a long axis on which the scissors are fitted, which are rearranged and secured in their given position.

An embodiment of the invention is shown in the drawing, which shows only a cutting device, with FIG. 1 is a side view, FIG. 2 is a front view, FIG. 3 is a plan view, FIG. 4 is a front view, partly in section, of a variant of scissors, FIG. 5 is a side view thereof and FIG. b-their plan view.

The scissors carriage 22 with its prismatic heel 93, sliding in the guide 94 (Fig. 2), is driven by the rod 23 in continuous motion back and forth with a constant amplitude in a direction parallel to the axis of the sleeve casing. From the upper part 95 of the scissors carriage 22, parallel to the axis extending into the opening between the blades of the sheath for

sleeves, a long bolt 30 protrudes on which scissors 96 are repositioned, consisting of two blades 28 and 29 that can rotate on a movable and secured screw 96 and a movable tube 97, in front of which there is a spring 98, bringing together blade scissors.

In order for the shears 96 to be moved when they are installed at any incision site without interchanging the transfer parts, there is a tray (bracket) 100 that seizes the ends of the shears by means of two rollers 99 parallel to the axis of the sleeve within the limits of the possible settings. The tray 100, in turn, is supported parallel to the shell of the sleeves by the axis 101 placed in the slide 22. The inner end of the axis 30 enters the lateral sharpening of the thick bolt 102, on which also the trim 103 103 supporting the axle 30 is mounted. This trim has a rear upward direction , shoulder 104, so that, together with axis 30, it can be rotated around bolt 102 and secured with screw 105 on projection 106, the head part of slide 95, which allows precise setting of the angular displacement of the running plane with respect to the axis of the sleeve. The tray 100 has the shape of a bracket consisting of two semi-circular cheeks 107 and 108, which, when connected by a backrest 109, serve to support both rolls 99, with the rear cheek firmly fixed to the end of the axis 101.

In contrast to this variant, it is possible to impart such a movement to the scissors, as shown in FIG. 4-6 sheets 3. In the newest, very high-speed cigarette tissue mats, there is a very short period of time for cutting made with scissors. The commonly used springs for pulling the knees of the shears do not satisfy this requirement, since they do not produce: the knees are pulled so quickly that j

It was possible to make a cut in a very short period of time that was available. If the springs are made stronger, then the parts of the shears and the transfer to them are shed so quickly that after a short time the shears are developed and do not give an exact cut. Regardless, a lot of force must be used to tension the springs, which leads to the fact that springs, as experience shows, due to constant hard blows easily break or quickly wear out, generally deteriorate. With the proposed transmission device to the scissors, the springs, like the protrusions, completely fall off. To do this, at the ends of the scissors, short connecting rods (earrings) are adapted to their free knees, which, using a common finger, are articulated with the end of the lever rocking back and forth. In this way, a transfer like a Nuremberg scissors is obtained, with only minor masses moving.

Both scissors blades 28 and 29 are loosely mounted on the software bolt and pressed against each other in the usual manner with a spring. On the other side of the bolt 110 for scissors, on the shoulder 112 of the blade 29 there is a connecting rod 113 rotating on the bolt 114. At the shoulder 115 of the blade 28 there is a rotating rod 117. On the bolt 116 of the blade 117. Both the earrings 113 and 116 are joined together by a common axis of their rotation (bolt ) 108 at the swing lever 119.

When the lever 119 is rocked, the connecting rods (earrings) 113 and 117 can be instantly drawn together and brought together to quickly cut the casing of the cigarette sleeve 120, which is achieved without any other transfer parts.

The subject of the patent.

1. Scissors for cutting sleeves on sleeve machines, characterized in that they are mounted I in a movable carriage on a long j axis 30, and for closing them serve rollers 99, 99, which allow the shears to be displaced in the direction of these parts of FIG. 1-3).

2. Modification of the scissors indicated in paragraph 1, characterized in that the parallelogram P2, 113, 115, 117, driven by a long roller 118 (Fig. 4-6), serves to close the scissors, instead of rollers.

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