SU1691097A1 - Device for cross-cutting of strip material - Google Patents

Abstract

The invention steals towards a technique for processing a polymeric tape material and can be used for transverse cutting of a moving material such as rubber and rubberized web. The goal is to improve the quality of the products. The device is equipped with a rotating slide 5, which is spring-loaded relative to the link by a crank, pivotally connected to the rocker stone 3, a connecting rod 2, connected to the axis of the support 1, plate blade 6 mounted on the rocker stone 3 with the possibility of passage through the spring-loaded frame 7, stops 11, 10 to limit the angular swing of the connecting rod. When rotating the scenes 5, the rotational movement is converted into a forward rocker stone 3 with a knife 6 through spring-loaded 4, along the connecting rod 2 and into an angular movement of the connecting rod 2, as a result of which the knife 6 cuts the material and enters one of the slots of the support 1. 1 zp f-ly, 3 ill. cl

Description

The invention relates to a technique for treating a tape polymer material and can be used in transverse cutting of a moving material such as rubber and rubberized web.

The purpose of the invention is to improve the quality of the products obtained.

Fig, 1 shows a general view of the device; in fig. 2 is a diagram of the device in an intermediate position (when returning the knife to its original position); Fig, 3 is a diagram of the device at the beginning of the cutting cycle,

The device includes a knife drive mechanism, made in the form of a hinged link with the support 1 of the connecting rod 2, covering its rocker stone 3, placed on the connecting rod 2 with the possibility of reciprocating along its longitudinal axis of movement and connected by means of a hinge to the crank 4, passed through the rotating rocker 5, plate blade b with a cutting edge, rigidly mounted on the end of the rocker stone 3.

In addition, the device includes a clamping unit, made in the form of a frame 7 with a longitudinal groove 8, spring-loaded relative to the rocker stone and the knife 6 covering the outer perimeter of the blade 6. The support 1 is made in the form of a rotary drum with longitudinal grooves 9 on its side surface with cutting edges, mating cutting edge snips.

To limit the rotation of the connecting rod, there are stops 10, 11.

The device works as follows.

ABOUT

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Rotation of the input link - the link 5 is converted through the spring-loaded connecting rod 2 into the translational movement of the rocker stone 3 with the knife 8 and the spring-loaded frame 7 along the connecting rod 2 and into the angular movement of the shieldun 2, which is limited by the stops 10 and 11. When the angular movement of the connecting rod stops Sh , the rocker stone 3 is located at the point si, and the knife 6 fixed on it touches the surface of the material at the point EL (Fig. 2). After stopping the movement of the connecting rod, the rocker stone continues to move along the connecting rod from point at heat, while the spring-loaded frame 7 presses the material being cut to the surface of the support, and the knife 6, the cutting edge of which moves from point hc to that point, exit from The groove of the frame, cuts the material perpendicular to its surface, enters the groove of the support 1, rigidly connecting it with the connecting rod 2 (Fig. 3). Now the rotation of the link 5 through the spring-loaded connecting rod 2 and the link stone 3 is converted into angular movement of the connecting rod and the rotation of the associated drum. When the backstage is rotated by the aaoaz angle, the support 1 rotates together with the material pressed by frame 7 to the angle a loiaa, which corresponds to the length of the cut piece of material BW (Fig. 2). After rotating the support 1 to the angle aioiaa, the movement of the connecting rod 2 stops 11, after which the rocker stone 3 moves along the connecting rod 2 from point az to point az, the frame 7 releases material, and the knife 6, the cutting edge of which moves from point to point B4, leaves the support groove and the mechanism after turning the link on the corner aadaz

Claims (2)

1. A device for transverse cutting of a tape material containing a frame, a support, a knife e with a cutting edge and a knife drive mechanism including a rotating crank and a slide, characterized in that, in order to improve the quality of the products obtained, it is equipped with a clamping unit for cutting the material to the support, The drive mechanism of the knife is made about the form of a bent-off connecting rod, covering its rocker stone, placed on the connecting rod with the possibility of reciprocating movement along its longitudinal axis and connected by w With a crank made in the form of a thrust passed through the wings and spring-loaded relative to it, the knife is rigidly mounted on the rocker facing the oporetortse, the clamp assembly is made in the form of a knife surrounding the frame perimeter, spring-loaded relative to the rocker, longitudinal grooves on its side surface with cutting edges, opposite to the cutting edge of the knife; the axis of rotation of the connecting rod is located on the longitudinal axis of the drum, the slide is rotatable, and its axis It is parallel to the longitudinal axis of the drum and is located with it in one plane. 2. The device according to claim. Characterized in that it is provided with stops for limiting the rotation of the connecting rod. ten Editor N.Kamensk Compiled by G. Chuvaeva Tehred M. Morgenthal fih Corrector Cl. Demchik