Blade tensioning device of plastic-profile thermal cutting device

A cutting device and blade technology, applied in metal processing and other directions, can solve the problems of different section sizes of profiles, uneven cutting sections of profiles, bending and deformation of blades, etc., to achieve regular cutting sections, not easy to crack and damage, and prolong service life Effect

Active Publication Date: 2014-05-07
TONGLING GREAT EXTRUSION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This blade fixing method has the following disadvantages: since there are many kinds of profiles, the temperature of the blades required to cut profiles of different formulations is different; at the same time, the temperature of the blades required for the different cross-sectional sizes of the profiles also needs to be properly regulated
When the blade is heated, it will expand and deform, that is, the inclination of the blade will increase, and the blade will bend and deform, resulting in uneven cutting section of the profile, affecting product quality, and the blade is prone to cracking, which increases production costs, and frequent replacement of blades also reduces production efficiency.

Method used

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  • Blade tensioning device of plastic-profile thermal cutting device
  • Blade tensioning device of plastic-profile thermal cutting device
  • Blade tensioning device of plastic-profile thermal cutting device

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Embodiment Construction

[0015] Such as figure 1 , figure 2 and image 3 As shown, the present invention includes a frame 1 , a tool holder 2 and a blade 3 . The frame 1 is a vertical base plate, and the middle part of the frame 1 is provided with a horizontal base plate 11 as a workbench, and in the middle of the frame 1 above the horizontal base plate 11, there is a hole 13 for the profile 7 to be cut to pass. The tool holder 2 is in the shape of an inverted U. Linear guide rails 12 are provided on both sides of the frame 1. Sliders 26 cooperating with the linear guide rails 12 are fixed on both sides of the tool holder 2. The tool holder 2 can be raised and lowered through the cooperation of the sliders 26 and the linear guide rails 12. fixed on rack 1. The electric heating device 14 that heats the blade 3 fixed on the knife holder 2 is housed on the frame 1 . A pair of pull rods 21 are respectively fixed on both sides of the lower end of the knife rest 2 by a gland 22, and the lower ends of t...

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Abstract

The invention relates to a blade tensioning device of a plastic-profile thermal cutting device. The blade tensioning device comprises a rack, a knife rest and a blade, wherein the rack is fixed on the rack by a linear guide-rail mechanism in a liftable manner; one end of the blade is fixedly connected with the knife rest, and the other end of the blade is fixed on a sliding block; the knife rest is provided with a sliding groove matched with the sliding block; the sliding groove is arranged along the thermal-expansion lengthening direction of the blade; the blade tensioning device also comprises a sliding-block driving device, wherein the sliding-block driving device is fixed on the knife rest and can drive the sliding block to move along the thermal-expansion lengthening direction of the blade. The blade tensioning device has the advantages that since the tensioning mechanism is arranged for tensioning the blade, the cutting quality and the production efficiency can be improved, and the blade is not easily broken up and damaged, so that the production cost is reduced.

Description

technical field [0001] The invention relates to a thermal cutting device for plastic profiles, in particular to a blade tensioning structure of the thermal cutting device for plastic profiles. Background technique [0002] At present, in thermal cutting devices for plastic profiles, the blades are usually directly fixed on the cutting tool holder with screws, such a thermal cutting device for profiles is disclosed in Chinese patent ZL201320056132.7. This blade fixing method has the following disadvantages: since there are many kinds of profiles, the temperature of the blades required to cut profiles of different formulations is different; at the same time, the temperature of the required blades also needs to be properly regulated due to the different cross-sectional sizes of the profiles. Therefore, the temperature of the blade needs to be properly regulated during cutting. Due to thermal expansion and contraction of the blade, the deformation of the blade is different at d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B26D7/26
Inventor 查安平敖万路马群柱潘雯周汉生
Owner TONGLING GREAT EXTRUSION TECH
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