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Ultrasonic welding unit with preheating unit

A technology of ultrasonic welding and welding surface, applied in the field of ultrasonic welding equipment, can solve problems such as high energy consumption

Active Publication Date: 2018-01-09
HERRMANN ULTRACHALLTECHNIK GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, generating hot air is associated with high energy consumption

Method used

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  • Ultrasonic welding unit with preheating unit

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Experimental program
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Embodiment Construction

[0032] figure 1 An embodiment of an ultrasonic welding device 1 according to the invention is shown. This device is used to weld two material webs 2 together.

[0033] Welding is carried out by means of the handling electrode 3 and the handling partner tool 4 . Both the treatment electrode 3 and the treatment counterpart tool 4 have welding surfaces in the form of cylindrical surfaces and are rotated about their longitudinal axes by means of drives 7 , 8 . In the illustrated embodiment, the axis of rotation of the treatment partner tool 4 is connected to the machine support frame structure, while the treatment electrode 3 is movable in a vertical direction relative to the holder 5 by means of the support 6 . Thus, the desired welding gap can be adjusted by means of the holder 6 between the processing electrode 3 and the processing partner tool 4 . The treatment electrode 3 is subjected to ultrasonic vibrations by means of a transducer (not shown), so that the material web 2...

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Abstract

The invention relates to a device for ultrasonic welding of at least two webs of material (2), comprising a treatment electrode (3) excitable by ultrasonic vibrations (1), a treatment partner tool (4) and designed to operate between the treatment electrodes ( 3) A material guide for guiding the material web (2) between the processing partner tool (4), in which a unit (9, 10) for heating at least one material web (2) before welding is provided. In order to provide an ultrasonic welding device (1) that avoids the disadvantages listed and still provides a fast processing speed, according to the invention, the unit (9, 10) for preheating at least one material web (2) has a preheated electrode (9).

Description

technical field [0001] The invention relates to a device for ultrasonic welding of at least two material webs. Background technique [0002] Such a device can be used, for example, for ultrasonic welding of webs of plastic material. Usually such devices have a welding electrode which can be excited by ultrasonic vibrations, a counter tool and a material web guide which is designed such that the material web to be welded can pass between the welding electrode and the counter tool. [0003] In order to excite the welding electrode by means of ultrasonic vibrations, an ultrasonic generating device is used which comprises a generator for generating an alternating voltage and a converter for converting the alternating voltage into mechanical vibrations generally by means of piezoelectric elements. The converter can be connected directly to the welding electrodes, or there can be a so-called amplitude converter connected between them, which only affects the mechanical vibration a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C65/08
CPCB29C65/087B29C65/088B29C66/0242B29C66/1122B29C66/43B29C66/81465B29C66/83413B29C66/91411B29C66/919B29C66/92445B29C66/71B29K2023/06B29C65/02B29C65/08
Inventor T·费舍尔A·施奈德
Owner HERRMANN ULTRACHALLTECHNIK GMBH & CO KG