CZ453489A3 - process of wasteless tube rolling and a mandrel for carrying-out the process - Google Patents

process of wasteless tube rolling and a mandrel for carrying-out the process Download PDF

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Publication number
CZ453489A3
CZ453489A3 CS894534A CS453489A CZ453489A3 CZ 453489 A3 CZ453489 A3 CZ 453489A3 CS 894534 A CS894534 A CS 894534A CS 453489 A CS453489 A CS 453489A CZ 453489 A3 CZ453489 A3 CZ 453489A3
Authority
CZ
Czechia
Prior art keywords
mandrel
carrying
wasteless
extrusion
tube rolling
Prior art date
Application number
CS894534A
Other languages
Czech (cs)
Slovak (sk)
Inventor
Anton Ing Sporker
Ivan Ing Balko
Milan Ing Mutis
Vladimir Ing Zvarik
Jozef Bulik
Original Assignee
Anton Ing Sporker
Balko Milan
Milan Ing Mutis
Vladimir Ing Zvarik
Jozef Bulik
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anton Ing Sporker, Balko Milan, Milan Ing Mutis, Vladimir Ing Zvarik, Jozef Bulik filed Critical Anton Ing Sporker
Priority to CS894534A priority Critical patent/CZ453489A3/en
Publication of CZ453489A3 publication Critical patent/CZ453489A3/en

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Abstract

Pri přetlačování, ktoré následuje po dierovaní, sa v dne (5) polotovaru vytvoří otvor a materiál dna (5) sa rozvalcuje na priemer rúry. Trnová tyč k uskutečneniu tohoto spósobu je za svojim hrotom (1) opatřená válcovým osadením (3).During the overprinting that follows the punch, the bottom (5) the blank forms an opening and the bottom material (5) is rolled into pipe diameter. The thorn bar to accomplish this is behind its tip (1) provided with a cylindrical shoulder (3).

Description

(57) Pri přetlačování, ktoré následuje po dierovaní, sa v dne (5) polotovaru vytvoří otvor a materiál dna (5) sa rozvalcuje na priemer rúry. Trnová tyč k uskutečneniu tohoto spósobu je za svojim hrotom (1) opatřená válcovým osadením (3).(57) During the extrusion following the punching, a hole is formed in the bottom (5) of the blank and the bottom material (5) is rolled to the pipe diameter. A mandrel rod for carrying out this method is provided with a cylindrical shoulder (3) behind its tip (1).

¢.¢.

Vynález rieši problém bezodpadovej výroby rúr tecbnológiou vThe invention solves the problem of waste-free production of tubes by technology in the

„dierovací lis - elongátcr - přetlačovacia stolica - redukovna.„Punching press - elongation - transfer mill - reducing plant.

Pri súčasne používanej technologii dierovania výliska v dierovacon lise, následnom predlžovaní výliska v elongátore a jeho valcovania v pretlačovacej stolici vzniká dno, ktoré musí byl před dalším tvárněním rúr v redukovni· odstraněné, nakolko jeho plný. pro fil by vyvodil tvárniace sily, ktoré zariadenie redukovne nie je schopné překonat. Odřezáváním dna vznikajú straty materiálu, ktoré predstavujú až 60 kg/t výroby.The currently used technology of punching the press in the punching press, then extending the press in the elongator and rolling it in the extrusion mill creates a bottom, which must be removed before further forming the tubes in the reducer as it is full. For example, the film would generate forming forces which the reducing apparatus cannot overcome. Cutting the bottom results in material losses of up to 60 kg / t of production.

Uvedené nevýhody odstraňuje spSsob bezodpadového tvárnenia rúr dierovaním a přetlačováním podlá vynálezu, ktorého podstata je v tom, Že po dierovaní sa pri přetlačovaní v dne vytvoří otvor a materiál dna sa rozvalcuje na priemer rúry. Vynález rieši i trnovú tyč k uskutocneniu tohoto 3pfisobu. Podlá vynálezu trnová tyč je za hrotom opatřená válcovým osadením.The above-mentioned disadvantages are eliminated by the method of waste-free tube forming by punching and extrusion according to the invention, which is based on the fact that after punching a hole is formed in the bottom during extrusion and the bottom material is rolled to the pipe diameter. The invention also provides a mandrel for carrying out this method. According to the invention the mandrel rod is provided with a cylindrical shoulder behind the tip.

Výhoda tohto riešenia spočívá v tom, že opornou časíou, potřebnou pre pretlačovanie v pretlačovacej stolici, sa stává osadenie trnovéj tyče, čím sa dosiahne, že koniec rúry za pretlačovacou stolicou nemá plné dno, ale kalibrovaný otvor, Takýto koniec rúry sa nemusí odřezávat, pretože je schopný tvárnenia v redukovni a stává sa súčastou napěchovaného konca. Riešením sa dosiahne zníženie strát vznikajúcich odřezáváním dna za pretlačovacou stolicou.The advantage of this solution is that the support part required for extrusion in the extrusion mill becomes the thorn rod step, thus ensuring that the end of the tube downstream of the extrusion mill does not have a solid bottom, but a calibrated hole. it is capable of forming in the reducer and becomes part of the rammed end. The solution achieves a reduction of losses resulting from the cutting of the bottom behind the extrusion mill.

Trnová tyč a vývalok po dierovaní před přetlačováním sú v príkladnom převedení znázorněné na připoj enom výkrese v čiastočnom pozdížnom řeze.The mandrel and the rolled metal after punching before extrusion are shown in an exemplary embodiment in a partial longitudinal section in the attached drawing.

Tělo 2 trnovej tyče je opatřené válcovým osadením 2» na ktoré navazuje hrot trnovej tyče. navrhnutá trnová tyč pretlačovacej stolice zasunutá do vývalku 4 P^i náraze do prvého stojana pretlačovacej stolice prerazí a otvorí dno 5, ktoré sa navalcuje na valco veThe mandrel body 2 is provided with a cylindrical shoulder 2 , which is connected to the mandrel tip. the proposed mandrel bar inserted into the rolled metal 4 when it strikes the first mandrel stand pierces and opens the bottom 5, which is rolled onto the roll

Claims (2)

1. SuSaob bezodpadového tvárnenia rúr dierc variím ε pre tlač ováním materiálu, vysr.aČujúci sa tým, že po dierovauí 3a pri pretla Čovaní v dne (5) vývalku (4) vytvoří otvor a materiál dna (5) sa rosvalcuje na priemer rúrv.1. SuSaob of waste-free forming of tubes of variations ε for material printing, characterized in that after punching 3a during extrusion in the bottom (5) of the rolled piece (4), a hole is formed and the bottom material (5) is rolled to the diameter of the tubes. 2. Trnová tyč k uskutočneniu sposobu podlá bodu 1, vyznačujúca sa tým, že sa hrotom (1) je opatřená válcovým osadením (3).2. A mandrel according to claim 1, characterized in that the tip (1) is provided with a cylindrical shoulder (3).
CS894534A 1989-07-28 1989-07-28 process of wasteless tube rolling and a mandrel for carrying-out the process CZ453489A3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CS894534A CZ453489A3 (en) 1989-07-28 1989-07-28 process of wasteless tube rolling and a mandrel for carrying-out the process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS894534A CZ453489A3 (en) 1989-07-28 1989-07-28 process of wasteless tube rolling and a mandrel for carrying-out the process

Publications (1)

Publication Number Publication Date
CZ453489A3 true CZ453489A3 (en) 1993-04-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
CS894534A CZ453489A3 (en) 1989-07-28 1989-07-28 process of wasteless tube rolling and a mandrel for carrying-out the process

Country Status (1)

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CZ (1) CZ453489A3 (en)

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