CS202292B1

CS202292B1 - Device for clamping the interchangeable winding up or off mandrels

Info

Publication number: CS202292B1
Application number: CS515378A
Authority: CS
Inventors: Vendelin Urbanek; Mikulas Kovacs
Original assignee: Vendelin Urbanek; Mikulas Kovacs
Priority date: 1978-08-07
Filing date: 1978-08-07
Publication date: 1980-12-31

Description

(54) Zariadenie na upínanie výměnných navijácích alebo odvíjacích trňov(54) Apparatus for clamping replaceable reels or unwinding spindles

Vynález rieši upínanie výměnných trňov určených pre navíjanie a odvíjanie zvitkov pásov, drotov a podobné. Upínacie zariadenie bolo vytvořené v návaznosti na nové konstrukčně riešenie výměnného navíjacieho a odvíjacieho trňa podl'a autorského osvedčenia 197061.The invention solves the clamping of replaceable mandrels intended for winding and unwinding of coils of strips, wires and the like. The clamping device was created in accordance with the new design of the replaceable winding and unwinding mandrel according to the author's certificate 197061.

Doteraz sú známe a na navíjanie alebo odvíjanie zvitkov pásov, drétov a podobné sa používajú trne, ktoré tvoria jeden celok s hnacím hriadelom alebo trne, ktoré sú sice k hnaciemu hriadefu připojené odpojitelné, avšak ich výměna má pre svoju komplikovanost opodstatněme a význam len pri zmene potřebných parametrov a rozmerov tfňa. Nevýhodou týehto riešení je, že před každým odvíjaním je potřebné zvitky pása dopravit na miesto odvíjania, nasunút na odvíjací třň, po přechode pása technologickou časťou znova navinut do zvitku, navinutý zvitok stiahnuť z navíjacieho trňa a dopravit na určené miesto. Pri opakovanom nasúvaní a stahovaní zvitkov z trňov dochádza velmi často k poškodeniu jednak celého zvitku a jednak dost veíkej časti pásu navinutého na začiatku a na konci zvitku.To date, spools which are integral with the drive shaft or spindles which are detachable to the drive shaft are known for winding or unwinding the coils of strips, wires and the like, but which are removable to the drive shaft due to their complexity and only when changing necessary parameters and dimensions. The disadvantage of this solution is that before each unwinding it is necessary to convey the belt coils to the unwinding point, slide them onto the unwinding mandrel, after the belt has passed through the technological part, rewound it into the coil, withdraw the wound coil from the winding mandrel and transport it to the designated place. Repeated insertion and withdrawal of the coils from the mandrels often damage both the entire coil and the large part of the strip wound at the beginning and at the end of the coil.

Uvedené nedostatky odstraňuje zariadenie na upínanie výměnných navijácích alebo odvíjacích trňov, vytvořené z hriadela otočné uloženého v ráme stroja a spojeného s pohonom podlá vynálezu, ktorého podstata spočívá v tom, že v osl hriadela je posuvné a čiastočne i rotačně uložené ppínacie tiahlo na jednom konci spojené cez axiálně ložisko s piestnicou priamočiareho hydromotora pevne upevněného na ráme stroja a na druhom konci opatřené upínacou doskou, ktorá sa nachádza v priestore upínacej dutiny vytvorenej v prednej časti hriadela, pričom za upínacou doskou je v upínacom tiahle vytvořená drážka v tvare skrutkovice do ktorej zapadá kolik pevne spojený s hriadelom.The above mentioned drawbacks are eliminated by a device for clamping interchangeable winch or unwinding mandrels formed from a shaft rotatably mounted in the machine frame and connected to the drive according to the invention, which is based on the fact that in the shaft of the shaft via a thrust bearing with linear piston rod fixed to the machine frame and provided with a clamping plate at the other end of the clamping cavity formed in the front of the shaft, with a screw-shaped groove formed in the clamping plate behind the clamping plate firmly attached to the shaft.

Výhodou upínacieho zariadenia podlá vynálezu je, že umožňuje bezpečné a hlavně rýchle upínanie výměnných navijácích alebo odvíjacích trňov. Toto riešenie dovoluje presúvať zvitok pása spoločne s třňom, na ktorom je navinutý do ďalšej technologie, čím sa zamedzí poškodzovaniu navinutých zvitkov pása.An advantage of the clamping device according to the invention is that it enables safe and, above all, quick clamping of replaceable winches or unwinds. This solution allows the belt roll to be moved together with the mandrel on which it is wound into another technology, thereby avoiding damage to the wound belt rolls.

Na pripojenom výkrese je znázorněný příklad prevedenia zariadenia na upínanie výměnných navijácích alebo odvíjacích trňov podl'a vynálezu, kde na obr. 1 je upínacie zariadenie v pozdížnom řeze, na obr. 2 je pohfad P na upínaciu dutinu a na obr. 3 je priečny rez cez skrutkovicovú drážku.The attached drawing shows an example of an embodiment of a device for clamping interchangeable winch or unwinding mandrels according to the invention. 1 is a longitudinal section of the clamping device, FIG. 2 is a view P of the clamping cavity and FIG. 3 is a cross-section through a helical groove.

Zariadenie na upínanie výměnných navijácích alebo odvíjacích trňov sa skládá z hriadela 4 otočné uloženého v prednom ložisku 2 a v zadnom ložisku 3, ktoré sú pevne upevněné v ráme 1 odvíjacieho alebo navíjacieho zariadenia. V osi hriadela 4 je posuvné a čiastočne i rotačně uložené upínacie tiahlo 5 opatřené predným válcovým vedením 52 a žádným válcovým vedenímThe device for clamping interchangeable winding or unwinding mandrels consists of a shaft 4 rotatably mounted in the front bearing 2 and in the rear bearing 3, which are fixedly fixed in the frame 1 of the unwinding or winding device. In the axis of the shaft 4 is a sliding and partly also rotationally mounted clamping rod 5 provided with a front cylindrical guide 52 and no cylindrical guide

S 4S 4

53. V zadnom valcovom vedení 53 je vytvořená krátká drážka 51 v tvare skrutkovice do ktorej zapadá kolík 6 pevne spojený s hriadelom 4. Při posuvnom osovom pohybe upínacieho tiahla 5 kolík 6 kopíruje skrutkovicový tvar drážky 51 a čiastočné otáča upínacím tlahlom 5, ktorého l'avý koniec je ukončený upínacou doskou 54 oválového tvaru. Pravý koniec upínacieho tiahla 5 je uložený v axiálnom ložisku 7, ktoré je cez tiahlo 71 pevne spojené s piestnicou 81 hydraulického valca 8 upevněného pomocou konzoly 9 na veku 13 žádného ložiska 3. V prednej časti hriadela 4 je vytvořená upínacia dutina 41 do ktorej sa upíná navíjací alebo odvíjací třň 12 polohovaný perom 11. V strednej časti je na hríadell 4 pevne prichytené ozubené koleso 10, ktoré zaberá do sústavy ozubených prevodov uložených v ráme 1 navíjacieho alebo odvíjacieho zariadenia. '53. A short helical groove 51 is formed in the rear cylindrical guide 53 into which the pin 6 is fixedly connected to the shaft 4. During sliding axial movement of the clamping rod 5, the pin 6 follows the helical shape of the groove 51 and partially rotates the clamping pressure 5. The left end is terminated with an oval-shaped clamping plate 54. The right end of the clamping rod 5 is mounted in an axial bearing 7 which is rigidly connected to the piston rod 81 of the hydraulic cylinder 8 fixed by means of a bracket 9 to the cover 13 of no bearing 3 via a rod 71. The clamping cavity 41 is formed in the front part of the shaft 4. a winding or unwinding spindle 12 positioned by a tongue 11. In the central part, a gear 10 is fixedly attached to the shaft 4, which engages a set of gears mounted in the frame 1 of the winding or unwinding device. '

Před upnutím výměnného navíjacieho alebo odvíjacieho třňa 12 do upínacej dutiny 41 sa upínacie tiahlo 5 vysunie do lávej krajnej polohy (v smere plnej šípky), pričom sa súčasne i upínacia doska 54 pootočí do polohy, ktorá je zhodná s polohou tvarového otvoru 122 vytvořeného na upínacom trní 121 výměnného navíjacieho alebo odvíjacieho třňa 12. Upínací třňBefore clamping the replaceable winding or unwinding mandrel 12 into the clamping cavity 41, the clamping rod 5 is extended to the leftmost position (in the direction of the full arrow), while at the same time the clamping plate 54 rotates to a position coinciding with the position of the bore 122 formed on the clamping hole. mandrels 121 of replaceable winding or unwinding mandrel 12. Clamping mandrel

Claims

A short helical groove 51 is formed in the rear cylindrical conduit 53 into which the pin 6 engages rigidly with the shaft 4. In sliding axial movement of the clamping rod 5 the pin 6 copies the helical shape of the groove 51a and partially rotates the clamping pressure 5, which is the end it is terminated by a clamping plate 54-shaped. The right end of the clamping rod 5 is housed in an axial bearing 7 which is an extension 71 fixedly connected to a piston rod 81 of a hydraulic cylinder 8 fixed by a bracket 9 on the lid 13 of any bearing 3. A clamping cavity 41 of the doctor is clamped in the front shaft 4 of the winding or unwinding device. The spindle 12 is positioned by a tongue 11. In the central part 4 a fixedly attached toothed wheel 10, which engages in a set of gears arranged in the frame 1 of the winding or unwinding device, is inserted. Before clamping the replaceable winding or unwinding mandrel 12 into the clamping cavity 41, the clamping rod 5 is extended into the lava end position (in the direction of the full arrow), while the clamping plate 54 is rotated to a position which coincides with the position of the shaped opening 122 formed on clamping pin 121 of replaceable winding or unwinding mandrel 12. Clamping pin P redmet

CLAIMS 1. A device for clamping interchangeable winding or unwinding spindles made of a shaft rotatably mounted in a frame of the machine and connected to a drive characterized in that a clamping rod (5) is slidable and partially rotatable in the shaft (4). a bearing (7) with a piston rod (81) of an axial rectilinear hydraulic motor (8) fixed on the machine frame (1) and on a second end provided with a clamping plate (54) which sits in the space of the clamping cavity (41) , it is inserted into the clamping cavity 41 so that the clamping plate 54 is moved through the shaped opening 122 to the cylindrical shoulder 123. The clamping rod 5 is then moved to the right (in the direction of the interrupted pin) by the hydraulic cylinder 8, while the clamping plate 54 rotates in the cylindrical shoulder 123 so as to be perpendicular to the shaped opening 122. The pivoted clamp 54 pulls the clamping mandrel 112 into the clamping cavity 41 by its shoulder. the shaft 4 and swing firmly. The clamping or unwinding mandrel 12 thus clamped in the radial direction by the tongue 11 and in the axial direction by the clamping plate 54 is prepared to wind up or unwind the band or the coil. The rotary movement is transmitted to the winding mandrel 12 by means of a gear 10 fixedly connected to the shaft 4. By releasing the replaceable unwinding or winding device 12, the clamping rod 5 is moved by means of the hydraulic cylinder 8, and at the same time the pivot (in until the shoulder 55 of the front cylindrical conduit 52 strikes the face of the clamping pin 121 and extrudes the yokes from the clamping cavity 41. The clamping device is thus prepared to clamp another winding or unwinding mandrel 12 of the invention. a helical groove (51) is formed downstream of the clamping plate (54) in the clamping rod (5), in which the pin (6) fits tightly with the shaft (4) ).

2. Apparatus according to claim 1, characterized in that a mounting (55) is provided between the clamping plate (54) and the groove (51) on the clamping rod (5).

.3 drawings