CS270535B1

CS270535B1 - Feeding mechanism of the wire with the programming of the pressing force of the jaws

Info

Publication number: CS270535B1
Application number: CS887919A
Authority: CS
Inventors: Michal Ing Csc Podolsky; Marian Ing Csc Murgas; Marian Kovac; Benedikt Ing Sojka; Jozef Ing Fulle
Original assignee: Podolsky Michal; Murgas Marian; Marian Kovac; Benedikt Ing Sojka; Jozef Ing Fulle
Priority date: 1988-12-02
Filing date: 1988-12-02
Publication date: 1990-07-12
Also published as: CS791988A1

Abstract

Riešenie sa týkaAmechanizmu na podávanie najma tenkých drotov s možnoeťou podle potřeby počae dopraného alebo spatného dopravného pohybu drotu dodržiava{ požadovaná přítlačné silu čelustl no drot, vhodné pra zaradenle do výrobných linisk. Podstata riešenia Je v podávacom mechanizme ovlédanom vačkami, ktorý zabezpečuje potřebný zdvih podávačej hlavice pre dopravu drotu i potřebný zdvih pomocného šmýkadla na etlačenie pružiny a tým vyvodzovanie potrebnej eily na po(iyblivú celust. Princip činnosti podávacieno mechanizmy spočivá v tom, že šmýkadlo (8) Je pohánané kladkou (5) a vačkou (4), pričom podávač (11) je posuvné uložený v šmýkadle (8) pružinou (7) a v hlavě podávače (14) je usporiadané pevné čsluéř (15) e pri-í tlačná čeluet (16), ktorej přítlačná sila je vyvodzovaná pružinou (Ϊ7) stlačovanou šmýkadlom (18) opatřeným kladkou (19) pohybujúcou aa po platní (20), ktorá je polonovatelná šmýkadlom (24) opatřeným kladkou (3) odvaíujúcou ββ po vačke (2). Uplatnenie riešenia je hlavně pri výrobě ihiel e guličkovým ukončením pre potřeby výpočtovej techniky ale aj pre lné výrobky ako napr. špendlíky, klínce, nlty apod. z velmi tenkého drotu.The solution concerns a mechanism for feeding especially thin wires with the possibility of starting the forward or reverse transport movement of the wire as needed, maintaining the required pressing force of the wire jaws, suitable for inclusion in production lines. The essence of the solution lies in the cam-controlled feeding mechanism, which ensures the necessary stroke of the feeding head for transporting the wire and the necessary stroke of the auxiliary slide for compressing the spring and thus extracting the necessary force to the workpiece. The principle of operation of the feeding mechanism is that the slide (8) is driven by a pulley (5) and a cam (4), while the feeder (11) is slidably mounted in the slide (8) by a spring (7) and in the feeder head (14) a fixed plate (15) is arranged and a pressure plate (16) is applied, the pressing force of which is extracted by a spring (Ϊ7) compressed by a slide (18) equipped with a pulley (19) moving along a plate (20), which is adjustable by a slide (24) equipped with a pulley (3) rolling along a cam (2). The application of the solution is mainly in the production of needles with ball ends for the needs of computing technology, but also for other products such as pins, nails, nails, etc. from very thin wire.

Description

Vynález rieši podávači mechanizmus drotov a programováním pritlačnej sily podávačích čeťusti s možnostou podle potřeby počeš dopredného aleao spatného dopravného pohybu drotu dodržlavaf požadovaná přítlačná silu četustí na drot, vhodný pře zaradenie Jednotky vo výrobných linkách.The invention solves the wire feeding mechanism and by programming the pressing force of the feeding jaws with the possibility of following the forward and incorrect transport movement of the wire as required to maintain the required pressing force of the jaws on the wire, suitable for placing the unit in production lines.

V súčaenoeti na podávaní· drotu sá známe rázné typy guličkových, vačkových a četuetových podávačov. ktorých charakteristickou vlastnostou je. že pri dvojzdvihu v jednom směre podávajá materiál, v druhem smere podávacie čeluste sá uvolněné a zdvih sa uskutečňuje naprázdno. 'Various types of ball, cam and platoon feeders are known in the field of wire feeding. whose characteristic feature is. that in the case of a double stroke, they feed the material in one direction, in the other direction the feed jaws are released and the stroke takes place empty. '

Navrhované rieSenie umožňuje naatavovat zvieraciu silu pridržiavacích četuetí pri dopradnom aj pri spatnom zdvihu podávače aj pri velmi tenkých dřotoch ako sá ihly s guličkovým ukončením pre potřeby výpočtovej techniky a iných výrobkov elektrotechnického priemyelu.The proposed solution makes it possible to adjust the clamping force of the holding rods in the event of an incidental or incorrect stroke of the feeder, even in very thin staples such as ball-terminated needles for the needs of computer technology and other products of the electrical industry.

Podstatou rieSenia je, že na pohonovom hriadel! je usporiadaná Jednak vačka odvaTujáca aa po kladko ovládájácej polohu platné cez tretie Smákadlo, uložené v pázdro, vedené klinom ako aj druhá vačka odvalujáca sa po druhej kladka pro přenos pohybu týchto na vodiacu liStu opojená so šmýkadlom, voči ktorému je porom vedený podávač, ktorý je voči šmýkadlu odpružený pružinou e nastavitelným prodpatim pomocou matic, kde v hlavo podávače, posuvna uloženého v danom Smýkadle Je usporiadaná pevná čelust a přítlačná čelust, ovládaná druhoo pružinou, ktorej sila jo vyvodzovaná druhým šmýkadlom pomocou kladky odvatujácej sa po platni.The essence of the solution is that on the drive shaft! On the one hand, a cam is unrolled and a pulley is actuated to a control position valid via a third wedge mounted in a wedge-guided housing. a fixed spring and a pressure jaw, actuated by a second spring, the force of which is exerted by a second slider by means of a roller unwinding along the plate.

Poloha platné v jednotlivých fázach dopravného pohybu je ovládané profilem vačky.The position valid in the individual phases of the traffic movement is controlled by the cam profile.

Velkost zdvihu podávače Jo daná vetkostou zdvihu druhej vačky zaberajácej s druhou kladkou, kdo konloc zdvihu podávania je vymedzený dorazom, umiootnoným u hlavy podávača, pričom rozdial medzi podáváním drotu a zdvihom vačky jo eliminovaný odpružením podávače voči ámýkadlu pomocou atlačonia pružiny.The size of the feed stroke Jo given by the height of the stroke of the second cam engaging the second pulley, which ends the feed stroke defined by a stop at the feeder head, the difference between the wire feed and the cam stroke being eliminated by springing the feeder against the slide by means of a spring compression.

Pohyb druhej vačky a prvou vačkou je aynchronizovaný ich usporiadanim na spoločnom pohonovom hriadoli.The movement of the second cam and the first cam is synchronized by arranging them on a common drive shaft.

Vyááí účinok navrhovaného rieSenia oproti aáčaane známému atavu techniky Je možnost nastavovanis zvieracej sily pridržiavacích čelusti tak pri dopradnom ako aj pri spatnom pohybe a zdvihu podávače, Jeho priapoaobenie aj pra velmi tenké droty a uaporiadanie pře zaradenie do výrobnej linky aj pra iné účely.It has a more effective effect of the proposed solution compared to the known state of the art.

Na připojeném výkrese, obr. 1 Je schematicky znázorněné usporladanie podávacieho mechanizmu podlá navrhovaného rieSenia.In the accompanying drawing, FIG. 1 schematically shows the arrangement of the feeding mechanism according to the proposed solution.

Podávači machanizmua. ako Je znázorněný na pripojenom obrázku 1 pozostáva zo stojane 9 podávača 11 a vodiaceho pázdra 22, ktoré tvoria stabilnú část zariadenia upavnanú v ráma 21 a z pohonového. hriadeta 1, na ktorom je usporiadaná Jednak vačka 2, odvátuJúca sa po kladka 3, ovládajácaj polohu platné 20 cez tretie Smýkadlo 24, uložené v púzdre 22 vedené klinom 23. ako aj druhá vačka 4. odvalujáca sapo druhej kladka 5 pra přenos pohybu týchto na vodiacu liétu 12 apojená so Šmýkadlom _8, voči ktorému je pérom 10 vedený podávač 11, ktorý jo voči Smýkadlu 8 odpružený pružinou 7 s nastavitelným predpatím pomocou matic 6, kde v hlavě podávača 11, posuvné uloženého v danom Smýkadle 8 Ja uaporiadaná pevná čeluat 15 a přítlačná čelust 16 ovládaná druhou pružinou 17. ktorej sila Je vyvodzovaná druhým Šmýkadlom 18 pomocou kladky 19 odvalujácej aa po platni 20.Mechanism feeders. as shown in the attached figure 1 it consists of a stand 9 of a feeder 11 and a guide sleeve 22, which form a stable part of the device mounted in the frame 21 and of a drive. The shaft 2, which is deflected by a pulley 3, controls a position 20 valid via a third slider 24, housed in a housing 22 guided by a wedge 23, as well as a second cam 4 rolling the second pulley 5 to transmit the movement of these guide rail 12 connected to the slider 8, against which the feeder 11 is guided by a spring 10, which is spring-loaded against the slider 8 by a spring 7 with adjustable bias by means of nuts 6, where a fixed face 15 is arranged in the feeder head 11, slidably mounted a pressure jaw 16 actuated by a second spring 17, the force of which is exerted by the second slider 18 by means of a roller 19 rolling on a plate 20.

Poloha platné 2D v jednotlivých fázach dopravného pohybu je ovládaná profilem vačky 2.The position of a valid 2D in the individual phases of the traffic movement is controlled by the profile of the cam 2.

Velkost zdvihu podávača 11 je daná valkoatou zdvihu druhej vačky 4 zaberajácej a druhou kladkou 6, kde konieo zdvihu podávania Je vymedzený dorazom 25, umiestneným u hlavy 14 podávača 11, pričom rozdial mSdzl podáváním drátu a zdvihom vačky 4 je eliminovaný . «Μ»»»»**The size of the stroke of the feeder 11 is determined by the cylindrical stroke of the second cam 4 engaging and the second pulley 6, where the end of the feeding stroke is defined by a stop 25 located at the head 14 of the feeder 11. «Μ» »» »**

CS 270 535 Bl odpružením podávače 11 voči šmýkadlu ,8 pomocou stlačenia pružiny 7.CS 270 535 B1 by springing the feeder 11 against the slider, 8 by compressing the spring 7.

Pohyb druhej vačky 4 s vačkou 2 je synchronizovaný ich usporiadanim na spoločnom pohonovom hriadeli Jl.The movement of the second cam 4 with the cam 2 is synchronized by arranging them on a common drive shaft J1.

Zariadenie podlá navrhovaného riešenia pracuje tak, že vačka 4 pri otáčani zabezpečuje požadovaný zdvih podávačích čelusti podávača 11 tak, že kladka 5 ovládaná vačkou 4 prenáša pohyb od vačky 4 cez danú kladku 5 na vodiacu lištu 12 spojená so šmýkadlom 8, voči kterému je pérom 10 vedený podávač 11. Podávač 11 je voči šmýkadlu 8 odpružený pružinou 7, ktorej stlačenia a tým aj predpatie Je nastavené maticami 6. Drot 13 prechádza otvorom v podávači 11 a v hlavě podávača 14 pomedzi pevné čelust 15 a přítlačná čelust 16, ktorej přítlačná sila pružiny 17 Je vyvodzovaná šmýkadlom 18 pomocou kladky 19 odvalujúcaj sa po platní 20. Poloha platné 20 v Jednotlivých fázach dopravného pohybu Je programované profilem vačky 2, z ktorej pohyb je kladkou 3 přenášený na ňu cez šmýkadlo 24. šmýkadlo 24 je v púzdre 22 vedené klínom 23. Velkost zdvihu podávača 11 je daná velkostou zdvihu vačky 4 s ktorou je v zábore kladka 5.The device according to the proposed solution works in such a way that the cam 4 during rotation ensures the required stroke of the feed jaws of the feeder 11 so that the roller 5 controlled by the cam 4 transmits the movement from the cam 4 via the roller 5 to a guide rail 12 guided feeder 11. The feeder 11 is spring-loaded against the slider 8 by a spring 7, the compression and thus also the bias of which is adjusted by nuts 6. The wire 13 passes through an opening in the feeder 11 and the feeder head 14 between a fixed jaw 15 It is derived by the slider 18 by means of a roller 19 rolling on the plate 20. The position of the valid 20 in the individual phases of the transport movement is programmed by the cam profile 2, from which the movement is transmitted to it by the roller 3 via the slider 24. The slider 24 is guided in the housing 22 by a wedge 23. The stroke size of the feeder 11 is determined by the stroke size of the cam 4 with which the pulley 5 is engaged.

Pri presnom podáváni Je možné voči východzej poloha podávača 11 nastavit doraz 25, na ktorý narazí hlava podávača 14 a tím je vymedzený konlec zdvihu podávania, pričom rozdiel medzi podáváním drotu a zdvlhom vačky 4 Je eliminovaný odpružením podávača 11 voči šmýkadlu 8 stlačením pružiny 7.For precise feeding, it is possible to set a stop 25 relative to the initial position of the feeder 11, which the feeder head 14 strikes and thus the end of the feed stroke is defined.

Synchronizácia pohybu vačky 4 s vačkou 2 Je daná tým, že sú upevněné a poháňané společným pohonovým hriadslom JL.The synchronization of the movement of the cam 4 with the cam 2 is due to the fact that they are fixed and driven by a common drive shaft JL.

Pri niektorých technologických operáciách vyžadujúcich kontrolu silových účinkov je možné podávanie zariadenie použit ako ekúěobné zariadenie. Ako přiklad možno uviest skúěanie pevnosti spoja medzi guličkou, utvořenou na drote z ktorého sa vyrábajú ihly s guličkovým ukončením pre potřeby výpočtovej techniky. Pri spatném zdvihu Je možné naprogramovat tvarom vačky napatie na ktoré Je opoj skúšaný.In some technological operations requiring the control of force effects, the feeding device can be used as a therapy device. An example is testing the strength of a joint between a ball formed on a wire from which ball-terminated needles are made for computer use. In the event of a wrong stroke, it is possible to program the voltage at which the intoxication is tested in the form of a cam.

Riešenie Je vhodné najma pri výrobě výrobkov z velmi tenkých drotov a Je možné vyžit zariadenie aj pre podávanie drotu vo výrobných linkách.Solution It is especially suitable for the production of products from very thin wires and It is possible to use the device for feeding wire in production lines.

Claims

P R E D M E T V>, N X L E .Z U

1. Wire feeding mechanism with programming of the pressing force of the feed jaws on the wire during its forward or reverse transport movement, consisting of a feeder stand and a guide sleeve, which form a stable part of the device fixed by a drive shaft door, characterized in that on said drive shaft (1) On the one hand, there is provided a cam (2) rolling on a pulley (3) controlling the position valid (20) via a third slider (24) housed in a housing (22) guided by a wedge (23), and a second cam (4) rolling on a second pulley (6) transmitting the movement of these to a guide rail (12) connected to the slider (8), against which a feeder (11) is guided by a tongue (10), which is spring-loaded against the slider (8) by an adjustable preload by means of nuts (6), where in the head (14) of the feeder (11) slidably mounted in the given slider (8) a fixed face and / 15 / and a pressing jaw (18) are arranged, controlled by a second spring (17), the force of which is exerted by the second slider. (18) by means of a roller (19) rolling even after payment (20).

2. Feeding mechanism according to item 1, characterized in that the position valid (20) in the individual phases of the transport movement is controlled by the cam profile (2), which is synchronized with the movement of the second cam (4) by their arrangement on a common drive shaft (1).

CS 270 535 Bl

3. Feeding mechanism according to item 1, characterized in that the stroke size of the feeder (11) is given by the large stroke of the second cam (4) epolating with the second roller (5), the end of the wire feed stroke being defined by a stop (25) located at the head (14) of the feeder, the difference between the feeding of the wire and the stroke of the cam (4) being eliminated by springing the feeder (11) against the slider (Θ) by compressing the spring (7).