Apparatus for cutting of an extruded strand of plastically deformable material, preferably of clay

Abstract

The invention relates to a cutting device for strips made of plastically deformable material, the strips are moved onto a conveyor belt in a channel extending longitudinally along the strips, and have at least one cutting line extending transversely to the channel, cutting The wire is clamped on the clamping frame at the end side, and the clamping frame makes the cutting wire move from one side of the channel to the other side and back with the longitudinal movement through the longitudinal transmission device and the transverse transmission device. The transverse transmission device includes a hinged rod A crank connecting rod, one end of the hinge rod is connected to the clamping frame through a first rotary hinge to swing around the first hinge axis, and the other end is connected to one end of at least one swing rod through a second rotary hinge to swing around the second swing axis Connected, the other end of the swing rod swings around the bearing axis and is supported on the turntable bearing. To ensure the length of the lateral movement of the clamping frame, the first and second articulation axes and the bearing axis extend parallel to the longitudinal direction of the channel, the clamping frame moves in relation to the crank rod in a longitudinal guide extending longitudinally along the channel.

Description

technical field [0001] The invention relates to a strip cutting device according to the preamble of claim 1 , 2 or 9 . Such devices are used in particular for the manufacture of blanks made of clay or similar materials in the construction industry. Background technique [0002] For this type of device, special movement conditions shall be fulfilled such that the cutting line extending transversely to the conveying direction moves transversely from one side of the conveyor belt when the longitudinal movement corresponds to the conveying speed of the strip being brought forward to the other side. As a result, strips can be cut during transport, wherein both ends of the cutting wire are clamped on the clamping frame, which is moved correspondingly by the longitudinal drive and the transverse drive. [0003] It is known that, on both sides of the strip passage, the holders for the respective ends of the cutting line move in horizontal longitudinal guides and vertical transvers...

AI Technical Summary

Problems solved by technology

In this structure, the clamping frame, which is arranged on both sides and holds the end of the cutting wire, is raised arcuately when it performs the same forward and backward movement, which is limited by the arcuate swing of the hinged rod

This not only results in a transverse movement length for the clamping frame and cutting wire which is longer than would be required for the corresponding transverse dimension of the relative strip, but also results in a relatively large transverse dimension for the device or structural height, and since the lateral part of the arc movement is not required, it also affects the cutting efficiency of the device

[0006] The disadvantage of this known device is also that the performance of the clamping frame and the transverse transmission arranged on both sides of the channel is limited by the vertical transverse plane of the point of tangential action between the hinged rod and the clamping frame

Although this shortens the structure of the transverse drive in the conveying direction, it makes it difficult to guide the transverse movement of the clamping frame and tilts the clamping frame in the transverse guide

This can also lead to malfunction, increased loading and wear on the guide surfaces, reducing service life

Although it is conceivable to improve the guidance of the lateral guide by relatively lengthening it, this would lead to a considerable increase in the structure of the device in the lateral direction

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