US3474979A

US3474979A - Arrangement in a winding machine for soft ribbon

Info

Publication number: US3474979A
Application number: US665153A
Authority: US
Inventors: Karl Gunnar Erlandsson
Original assignee: BAND IND AB
Current assignee: BAND IND AB
Priority date: 1966-11-14
Filing date: 1967-09-01
Publication date: 1969-10-28
Anticipated expiration: 1986-10-28
Also published as: DK117397B; BE703817A; CH458872A; GB1204159A

Description

Oct. 28, 1969 K, ERLANDSSQN 3,474,979

ARRANGEMENT INA WINDING MACHINE FOR SOFT RIBBON Filed Sept. 1, 1967 2 Shee'tsSheet 1 a 8 2 E J" 8 R m Nw -l|i| 2 ii i I Fl. 3 2 NM Pm Q. 3 mw mm PN oqmm m. u 8 mm E NP m 8 8 mm 2 m N mm mm .w P P S Q mw 1i 8 5 m m m N 5 NW 8 .8 mu 3 B 8 BE 3 HTL om Oct. 28, 1969 K. 5. ERLANDSSON 3,474,979

ARRANGEMENT IN A WINDING MACHINE FOR SOFT RIBBON 2 Sheets-Sheet 2 Filed Sept. 1. 1967 United States Patent 3,474,979 ARRANGEMENT IN A WINDING MACHINE FOR SOFT RIBBON Karl Gunnar Erlandsson, Kumla, Sweden, assignor to Aktiebolaget Bandindustri, a Swedish joint-stock company Filed Sept. 1, 1967, Ser. No. 665,153 Claims priority, application Sweden, Nov. 14, 1966, 15,540/66 Int. Cl. B65h 75/00 US. Cl. 242-61 4 Claims ABSTRACT OF THE DISCLOSURE Fully automatic machine for winding textile ribbon or the like on card-board card or the like. The machine is easily and reliably adjustable to different ribbon widths, different numbers of winding revolutions and different number of winding steps by members of the plug-in type. The machine is provided with a gripping member adapted automatically to draw the tail end of the ribbon between the card and the ribbon wound on the card subsequent to the ejection of the card and the cutting of the ribbon.

This invention relates to an arrangement in a machine for winding a ribbon, such as a textile ribbon, on a cardboard card or the like. The machine comprises a cyclically rotating main shaft with clamping means at the outer end for a card supplied by a card feeding device at the beginning of a cycle, means for ejecting the card preferably in the shaft direction at the end of a cycle, and a cutting device for the ribbon.

The invention is characterized by a control device operating step-by-step which by a revolution counter counting the revolutions of the main shaft is actuated to control in steps and successively the winding of the ribbon on the card in the shaft direction, said revolution counter and control device being provided with readily exchangeable members, such as cams for adjusting the number of revolutions and the number of steps respectively. The cams for the revolution counter according to the invention can be designed as maltese wheels with a different number of radial slots.

The arrangement comprises according to the invention advantageously means for clamping the front end of the ribbon against the inner end of the card, the ribbon thereby being wound outwardly, and a grip member for the tail end of the ribbon, which member preferably consists of hook-shaped outer end of a needle extending in parallel with the main shaft adjacent the upper surface of the card, said needle being fastened on a gripping shaft which is concentric with the main shaft and somewhat rotatable in relation to the main shaft, the cam of the control device being arranged for an extended final step movement, and the control device by a guide means preferably actuating a guiding passage or the like for the ribbon, in such a manner, that the guiding passage at the beginning of the cycle is located adjacent the card, but at the final step movement is moved to the side away from the card, at the same time as the gripping member by a temporary relative rotary motion of the gripping shaft in relation to the main shaft is caused to enclose the ribbon and retain it against the card, which ribbon thereafter is cut off by the cutting device, thereafter upon the ejection of the card the tail end of the ribbon is retained by the gripping member and thereby drawn in between the card and the ribbon wound on the card.

In conventional machines for winding ribbon on cardboard cards or the like, the adjustment to diflerent numbers of winding revolutions and different ribbon widths is very complicated and time-consuming. As these machines are not automatic, either, they involve considerable expenditures for labour.

A ribbon Winding machine according to the invention, however, can be adjusted rapidly and simply to different numbers of winding revolutions in radial as well as axial direction, and to different ribbon widths. This machine also offers great safety against an unintentional actuation of the adjusting means during the treatment of a consignment.

A ribbon winding machine according to the invention also constitutes a ribbon packaging machine which is fully automatic and safe in operation, with all the economical advantages offered thereby.

The invention is described in a greater detail in the following, with reference to the accompanying drawings which by way of example show in a schematic manner an embodiment of the invention.

FIG. 1 shows schematically the ribbon winding machine according to the invention as seen from above.

FIG. 2 shows an arrangement with a maltese wheel having four radial slots, as seen in the direction II-II in FIG. 1.

Fig. 3 shows in a corresponding manner as FIG. 2 an arrangement with a maltese wheel having six radial slots.

FIG. 4 shows a control device for a ribbon guiding passage as seen in the direction IV--IV in FIG. 1.

FIG. 1 shows a periodically rotating main shaft 1 having clamping means 2 on its outer end for a card-board card 3 which in the direction of the arrow B is supplied by a card feeding device 4 to the main shaft then standing still, The main shaft rotates in clockwise direction, as seen from the right in FIG. 1, and is driven by shaft 28 through bevel gears 29 and 30. A compressed air cylinder 5 with a piston rod '6 constitutes a means for ejecting the card 3 in the direction of the arrow A. A shearing device for cutting olf the ribbon comprises a shear blade 7 mounted on the piston rod 8 of a compressed air cylinder 9, and a shear blade 10 actuated by the rod 11.

The ribbon is supplied in the direction of the arrow C through a guiding passage 12 which is provided with a locking member (not shown) preventing the return travel of the ribbon. The guiding passage is mounted on a rod 13 which is fastened on a rod 14 with a head 15, which head in a simply detachable way is connected with a cam 16. The cam 16 is also in a simply detachable manner connected with the head 17 on the piston rod 18 of a compressed air cylinder 19. Said cylinder 19 and the cam 16 constitute a step-by-step operating control device for the guiding passage 12, in that teeth 20 and 21 on slides 22 and 23 respectively alternatingly engage in chamfered recesses 24, 25, 26 of equal size and equal spaced relationship, which recesses are formed in a surface of the cam 16. When by action of a compressed air cylinder 19 the cam by moving in steps to the right in FIG. 1 has reached the point where the tooth 21 has arrived at the recess 27 of the cam, the control device can perform an extended final step movement until the end of the rod 14 strikes against the end of a piston rod 31 of a compressed air cylinder 32,

As already mentioned, the cam 16 is simply detachable and can thereby be exchanged with other cams with a different number of recesses, corresponding to the number of winding revolutions in the direction of the main shaft for winding a ribbon on a card 3. The tooth 20 is fastened on the slide 22 by two screws 33 extending in a groove in the tooth. The distance between the recesses in the cam 16 (for example the recesses 24, 25, 26) is different for different ribbon widths, and tooth 20 must then be adjusted to a position corresponding to this distance, in such a manner, that the distance between the teeth must be somewhat smaller than the distance between two recesses (24, 25, 26).

The slide 22 is connected with the piston rod 34 of a double-acting compressed air cylinder 35. Upon the downward movement in FIG. 1 the slide 22 forces the slide 23 to move upwards due to the presence of a lever 36 which is mounted on a journal 40 and actuates the journals 37 and 38 fastened in the slides 22 and 23. The The slide 23 is also actuated by the spring 29 to move downwards in FIG. 1.

The piston in the double-acting compressed air cylinder 35 is actuated via the lines 41 and 42 by compressed air from the four-way valve 43 which receives compressed air at P and is controlled by pressure impulses from the line 44 acting against a spring (not shown).

The line 44 receives compressed air impulses from a valve 45 which is fed through a compressed air line P and opened by the action of a cam 46 on the shaft 47 of a revolution counter which counts the revolutions of the main shaft 1.

The revolution counter comprises a maltese wheel 50 mounted on a journal 48 and a follower pin 49 mounted on the shaft 47, which wheel in a manner known per se is turned stepwise about a journal 51 which is connected with a disc 52 in rigid connection with the main shaft 1, said disc being provided with a recess 53.

If the maltese wheel 50 according to FIG. 2 is provided with four radial slots 56, the valve 45 sends a feed impulse to the compressed air cylinder 35 of the control device at every fourth revolution of the main shaft 1.

The maltese wheel 50 can be provided with a different number of radial slots, as for example a star wheel 50 according to FIG. 3 has six such slots 56' whereby a feed impulse to the compressed air cylinder 35 of the control device is sent at every sixth revolution of the main shaft 1. The number of radial slots in different maltese wheels may vary, for example, between four and eleven.

The maltese wheel 50 is easy to replace, in which connection also the disc 52 with the journal 51 are exchanged at the same time, which is carried out in that the disc is divided and mounted on a disc 54 on the main shaft 1 by Screws 55.

A card 3 discharged from the card feeding device 4 is retained by a clamping member 2 connected with the main shaft 1. For clamping the front end of the ribbon against the inner end of the card 3, a yoke 58 is provided which is connected with the main shaft through the intermediary of a pivotal connection about shaft 159. An angular lever 160 or the like connected with the yoke 58 keeps the yoke 58 against the card 3 by a spring (not shown). The angular lever 160 is actuated by means (not shown) to move the yoke 58, for example, through an angle of 60 from its original position, the movement of the yoke 58 being arranged to take place when the guiding passage of the ribbon substantially has the position 12' as shown in FIG. 1, and the yoke 58 is again urged against the card 3 when the guiding passage of the ribbon has a position corresponding to 12 in FIG. 1. In position 12 the ribbon guiding passage is located substantially higher than in position 12, which is achieved in that the rear end 59 of the rod 13 moves in a part 60 of a slot 61 in a control device 63 which is adjustably mounted by screws 62 in longitudinal direction on the machine, see also FIG. 4.

At the end of the gripping shaft 64 mounted concentrically in the main shaft 1, a gripping member 65 in the form of a hook resting against the card 3 is fastened on the end of a needle 66. The gripping shaft, by means not shown, is adapted upon the final step movement of the control device temporarily to turn the gripping member 65 in relation to the main shaft 1.

The arrangement operates in the manner as follows.

The main shaft 1 is caused by suitable means to perform during a cycle a certain number of full revolutions, corresponding to the number of ribbon winding revolutions, the corresponding adjustment having been made on the revolution counter and the control device, whereafter the main shaft comes to a standstill in the position shown in FIG. 1. Subsequent to the stopping of the machine and the ejection of the card 3 by the cylinder 5 and rod 6, the card feeding device 4 inserts a new card 3 below the clamping member 2 whereafter during the return movement (to the left in FIG. 1) of the control device the ribbon end is clamped on the left-hand side of the card below the yoke 58, the cam 46 of the revolution counter then being in such a position that the tooth 20 is maintained in lifted position.

When the control device has arrived at its left-hand final position, in which position the tooth 21 descends into the recess 24, the main shaft 1 starts to rotate whereby the application of a maltese wheel with four radial slots brings about the effect that first four ribbon turns are wound radially on the card 3 whereafter the control device performs a displacing movement by one step to the right, and four new ribbon turns are wound radially on the card to the right of the first-mentioned turns, and after a further displacing movement by the control device another four ribbon turns are wound. When the tooth 24 of the control device has arrived at the recess 27, the control device performs a final step movement of greater length to the right, at the same time as the main shaft 1 comes to a standstill in the position shown in FIG. 1, whereby the ribbon guiding passage 12 is lifted and the gripping member 65 encloses the ribbon and by a turning motion retains the ribbon against the card 3, whereafter the cylinder 9 moves the shear blade 7 close to the ribbon which automatically is cut off by a pulling motion to the left of the rod 11. The card 3 is thereafter ejected by the cylinder 5 and rod 6, the tail end of the ribbon being retained by the gripping member 65 and thereby drawn between the card and the ribbon wound on the card 3.

The above-described cycle is thereafter repeated automatically.

The described cycles can be effected automatically in such a manner, that one cycle gives an impulse to the next cycle. A plurality of cycles and also the whole working cycle can be controlled advantageously by the control device according to the invention.

What I claim is:

1. An arrangement in a machine for winding a thread or a ribbon, such as a textile ribbon, on a cardboard card or the like, the machine comprising a cyclically rotating main shaft including clamping means at the outer end thereof for receiving a card supplied by a card feeding device at the beginning of a cycle, means for ejecting the card from the clamping means at the end of a cycle, a cutting device for the ribbon, a step-by-step operating control device to control the winding of the ribbon on the card in steps and successively in the shaft direction, and a revolution counter for counting the revolutions of the main shaft, said counter being coupled to the operating control device to actuate the same, the revolution counter and the control device being provided with exchangeable means for adjusting the number of revolutions per step and the number of steps respectively.

2. An arrangement in a machine for winding a thread or a ribbon, such as a textile ribbon, on a cardboard card or the like, the machine comprising a cyclically rotating main shaft including clamping means at the outer end thereof for receiving a card supplied by a card feeding device at the beginning of a cycle, a means for ejecting the card from the clamping means at the end of a cycle, a cutting device for the ribbon, a step-by-step operating control device to control the winding of the ribbon on the card in steps and successively, a revolution counter for counting the revolutions of the main shaft, said counter being coupled to the operating control device to actuate the same, said clamping means clamping a first end of the ribbon against the inner end of the card, the ribbon thereby being wound outwardly, a gripping member for the tail end of the ribbon comprising a needle extending parallel to the main shaft and close to the surface of the card, said needle having an outer end with a hook-shaped end, and a gripping shaft concentric with the main shaft and somewhat rotatable in relation to the main shaft, said needle being fastened to said gripping shaft, a guide member having a guide passage for the ribbon, said control device being coupled to said guide member to displace the same stepwise and in succession relative to the card, said control device having an extended final step movement, and a guide means for said guide member to cause the guide passage at the beginning of a cycle to be located adjacent the card, whereas at the final step movement the passage is moved away from the card while simultaneously the gripping shaft undergoes a temporary relative motion in relation to the main shaft so that the gripping member retains the ribbon against the card, which ribbon subsequently is cut by the cutting device, whereafter upon the ejection of the card the tail end of the ribbon wound on the card is retained by the gripping member and thereby is drawn between the card and the ribbon wound on the card.

3. The arrangement according to claim 1, wherein the exchangeable means for the revolution counter comprises a maltese wheel.

4. The arrangement according to claim 3, wherein said maltese wheel is provided with a plurality of radial slots, at least four in number.

References Cited UNITED STATES PATENTS 2,554,855 5/1951 Creed 242- 5o 2,699,298 1/1955 Canet 242-61 LEONARD D. CHRISTIAN, Primary Examiner US. 01. X.R. 33-137