CS272634B1

CS272634B1 - Sealing ultrasonic electrode holder for thermoplastic materials welding

Info

Publication number: CS272634B1
Application number: CS889888A
Authority: CS
Inventors: Peter Ing Klapita; Maximilian Ing Rumanovsky; Milan Rndr Svoboda
Original assignee: Peter Ing Klapita; Maximilian Ing Rumanovsky; Milan Rndr Svoboda
Priority date: 1988-12-28
Filing date: 1988-12-28
Publication date: 1991-02-12
Also published as: CS889888A1

Abstract

The device concerns ultrasonic plumbing welding pliers for soldering thermoplastic materials used in packing engineering for belting of packaging containing product. The weld created by ultrasound in the point where tapes are crossed functions as a seal. In the support body (1), close connected to a grip (2) with a switch, there is a firmly embedded ultrasonic transducer (4) with welding tool (5). In the fork (6), close connected to the support body (1), there is a control lever (8), rotating on the pin. The control lever is equipped with a flexible switch (3) controller (10) and it is also functionally connected with welding backing strip (12) via a pulling rod (11). The backing strip (12) is close connected with guiding poles (13) moveably arranged in guide (14) formed in the support body. Between the support body (1) and the backing strip (12) on the guiding poles (13) there are pressure springs (15). The front face of the welding tool (5) is equipped with plastic relief (16) of the company protected trademark.<IMAGE>

Description

Vynález sa týká plombovacích ultrazvukových zváracích klieští na spájanie termoplastických materiálov používaných v obalovej technika na prepásanie obalov s tovarom. Spoj vytvořený v mieste prekríženia pások pomocou ultrazvuku, plní funkciu plomby,The present invention relates to sealing ultrasonic welding tongs for joining thermoplastic materials used in a packaging technique to gird packages to goods. The joint formed at the point where the tapes are crossed by ultrasound, acts as a seal,

Pri prepásavaní obalov s uloženými výrobkami sa doteraz používajú oceíové pásky, ktoré sa po upevnění na obal v mieste prekríženia zvárajú bodovým zvarom, čo plní funkciu zaistenia proti nežiadúcej manipulácii. Pri novšom sposobe prepásania za použitia termoplastických pások sa v mieste prekríženia používajú kovové spony, ktoré sa upevňujú zalisovaním speciálnymi klieštami, alebo po previazaní miesta prekríženia plombovacím drotikom sa spoj plombuje olovenou plombou. Plombovanie popisovanými sposobmi má nevýhody, z ktorých najzávažnejšia je značná pracnost pri upevňovaní Bpony, plombovacieho drotika a olovenej plomby, a tiež potřeba pomocného materiálu.Up to now, steel straps have been used in the wrapping of packagings with stored products which, when attached to the pack at the crossing point, are welded by spot welding, which serves as a tamper-proof device. In a newer strapping method using thermoplastic tapes, metal clips are used at the crossing point, which are fastened by pressing with special pliers, or after the crossing point has been sealed with a sealing wire, the joint is sealed with a lead seal. Sealing with the described methods has drawbacks, the most important of which is the considerable labor in fixing the Bpona, the sealing wire and the lead seal, as well as the need for auxiliary material.

Uvedené nevýhody v značnej miere odstraňujú plombovacie ultrazvukové zváraoie kliešte na spájanie termoplastických materiálov, podía vynálezu, pozostávajúce z nosného telesa ε ultrazvukovým meničom a zváracím nástrojom a pákového mechanizmu s připojenou zváracou podložkou, ktorého podstatou je, že v nosnom telese pevne pripojenom k rukovati, na ktorej je upevněný spínač, je pevne uložený ultrazvukový měnič so zváracím nástrojom, zatial’ čo vo vidlici pevne pripojenej k nosnému telesu je otočné okolo čapu uložená ovládacia páka, opatřená přestavíteíným dorazom a pružným ovládacom spínača, s ktorou je funkčně spojená prostredníctvom tiahla zváraoia podložka. Podstatou vynálezu je aj to, že zváracia podložka je pevne spojená s vodiacimi stlpmi posuvné uloženými vo vedení vytvorenom v nosnom telese, a že medzi nosným telesom a zváracou podložkou sú na vodiacich stípoch uložené tlačné pružiny, íalej je podstatou vynálezu, že čelo zváracieho nástroja je opatřené plastickým reliefom firemného ochranného znaku.The above-mentioned disadvantages largely eliminate the sealing ultrasonic welding tongs for joining thermoplastic materials according to the invention, consisting of a support body with an ultrasonic transducer and welding tool and a lever mechanism with an attached welding pad, the principle being that in the support body fixed to the handle An ultrasonic transducer with a welding tool is fixed while the fork is rigidly attached to the support body and a control lever is rotatably mounted around the pin, provided with an adjustable stop and a resilient control switch to which it is operatively connected by means of a welding rod. It is also an object of the invention that the welding pad is rigidly connected to the guide columns slidably mounted in a guide formed in the support body, and that compression springs are mounted between the support body and the welding pad on the guide columns; provided with plastic relief of the corporate protective emblem.

Výhodou zariadenia podía vynálezu je, že umožňuje priamo zvarením materiálu termoplastických pások používaných na prepásanie obalov vytvorenie plombovaného spoja, a odstraňuje používanie pomocných přídavných materiálov, spony, plombovacích drótikov a olovenej plomby, čím sa šetři materiál a znižuje pracnost plombovania. Výhodou je aj bezpečnejšie plombovanie, spoj nemožno bez viditelného porušenia plomby odstrániť. Piremný znak zamedzuje resp. stažuje neoprávněné napodobnenie plombovaného spoja.The advantage of the device according to the invention is that it enables directly the welding of the material of thermoplastic tapes used for the wrapping of the packages to form a sealed joint, and eliminates the use of auxiliary materials, clasp, sealing wires and lead seal, thereby saving material and reducing sealing effort. The advantage is also safer sealing, the joint can not be removed without visible breakage of the seal. Pirate character prevents or resp. withdraws unauthorized imitation of the sealed joint.

Plombovacie ultrazvukové zváraoie kliešte na spájanie termoplastických materiálov sú příkladné znázorněné na připojených výkresoch, kde obr, 1 znázorňuje kliešte v bočnom pohíade a obr. 2 v čiastočnom priečnom řeze,Sealing ultrasonic welding tongs for joining thermoplastic materials are exemplified in the accompanying drawings, wherein FIG. 1 shows the tongs in a side view and FIG. 2 in a partial cross-section,

V nosnom telese _1, ktoré je pevne spojené s rukovaíou 2 s upevněným spínačom 3, je pevne uložený ultrazvukový měnič 4 a zváraoí nástroj 5, Vo vidlici 6 pevne spojenej s nosným telesom 1 je otočné okolo čapu 7 uložená ovládacia páka 8 opatřená prestaviteíným dorazom j? a pružným ovládacom 10 spínača 3. S ovládacou pákou 8 je prostredníctvom tiahla 11 funkčně spojená zváraoia podložka 12 pevne spojená s vodiacimi stípmi 13 posuvné uloženými vo vedení 14 vytvorenom v nosnom telese 1, Medzi nosným telesom I a zváracou podložkou 12 sú na vodiacich stlpoch 13 uložené tlačné pružiny 15.The ultrasonic transducer 4 and the welding tool 5 are fixed in the support body 1, which is fixedly connected to the handle 2 with the switch 3 fixed. The control lever 8 is provided with an adjustable stop j, which is rotatable around the pin 7. ? and a flexible actuator 10 of the switch 3. The welding pad 12 is operatively connected to the actuating lever 8 by means of a rod 11 and is fixedly connected to the guide posts 13 displaceably mounted in a guide 14 formed in the support body 1. Between the support body 1 and the welding pad 12 are on the guide posts 13 loaded compression springs 15.

Uchopením plombovacích ultrazvukových zváracích klieští, připojených na zdroj energie /na výkrese nezakreslené) do rúty, obsluhujúci pracovník zasunie zváraciu podložku 12 pod prekríženie prepásania tak, aby zváraoí nástroj 5 sa nachádzal v střede prekríženia. Stlačením ovládačej páky 8 voči rukovati 2 přitlačí sa čelo ultrazvukového ná- > stroja 5 na zvárané materiály. Súčasne spínač 3 privedie impulzne ultrazvukovú energiu do ultrazvukového menioa 4 a posobenim zváracieho nástroja 5 dochádza k zvareniu materiálov a vytvarovaniu povrchu spoja plastickým reliefom ochranného firemného znaku.By gripping the sealing ultrasonic welding tongs connected to the power source (not shown in the drawing) in the rout, the operator slides the welding pad 12 under the overlap of the girders so that the welding tool 5 is in the center of the crossing. By pressing the control lever 8 against the handle 2, the face of the ultrasonic tool 5 is pressed against the welded materials. At the same time, the switch 3 impulses ultrasonic energy to the ultrasonic transducer 4 and by welding the welding tool 5, the materials are welded and the surface of the joint is shaped by plastic relief of the security feature.

Claims

OBJECT OF THE INVENTION

First

Sealing ultrasonic welding tongs for splicing thermoplastic materials consisting of a support body with an ultrasonic transducer and welding tool attached, and a lever mechanism with a welding pad attached, characterized in that in the support body (1) is firmly attached to the handle (2) on which the fixed switch (3) «is a fixedly mounted ultrasonic transducer (4) with a welding tool (5), while a control lever (8) is rotatably mounted around a pin (7) fixed to the support (1) provided with an adjustable stop (9) and a resilient actuator (10) of the switch (3), with which a welding mat (12) is connected to the guide stages (13) slidably mounted in the guide (14) formed by means of a rod (11) The compression springs (15) are mounted on the guide posts (13) between the support body (1) and the welding mat (12).

Second

Sealing ultrasonic welding tongs for joining thermoplastic materials according to claim 1, characterized in that the face of the welding tool (5) is provided with a plastic relief (16) of the company mark.