US2642099A - Card setting machine - Google Patents

Description

June 16,1953 A. H. SCHAUB CARD SETTING MACHINES Filed Sept. 23. 1948 3 Shee ts-Shqet 1 10 m m I n fill-111lmm m M w v mm I e ua W h v Invpni'or:

A. H. SCHAUB 2,642,099

June 16, 1953 CARD SETTING MACHINES Filed Sept. 25. 1948 3 Sheets-Sheet 2 June 16,1953 A. H. SCHA'UB 2,642,099

CARD SETTING MACHINES Filed Sept. '25. 1948 3 Sheets-Sheet 5 I nvpn'l'or:

Patented June 16, 1953 ell liea msefit mbe 2 mss i moinsw aehseptem er'es, 1 94 e sli weflll) riilhe invention relates to lcard setting cnachines in which the cardclothing or the setting :mecha.-

nism :is adapted :to :perform an :intermittentxlateral :mocvementccorresponding ate the @pitch of staples termed staple spacing .step, a further lateral movement corresponding ,to :the:latera1;displacement ;Qf adjacent staple-rows, :said further imoeevment be'ing termed the staple ,row displacement step, and a longitudinal movement corresponding to the :distance between :two adj acentstaplerows. A member of devices :have been constructed-ate efiEect :the above gnamed movements. The :pres ent invention (has .ior iitslobieotto :provide animproved device which, asicompared with previously known ccnstmctions, :is nmcrelsimnle and cheape and involves a lessnumberof mohable parts, improved precision and reliability and 2131181120551 bili v 101 .-a considerable increase of ,the..;operatins speed. c 7

Further objects and advantages will appear from the following 8501" on :Qf an em od r ment of the invention "illustra ed in the. ann xed dr wings, in whiche I Fig. 1 shows $135 11 of a :set typ :foraecard cloth vi wed if omzthe :rear sid of the i lot ing; :Fig. :2 shows 'a portiqn of th card rcl ilt rl or .TOl lIldBalEiQHiWi-Qh appertainin guide. an scr w; Fi 3 is a dia rammatic v ew of l tor feedin he; foundation i s .19 direction; Fig.. 4 shows the feeding flew ce partly in section. Eli-gs. :5, -6 :and 1 7 :are mews take on the 1 s Y VI- -VI;ansi 'V'% --V J:I, re pect ve min; e. :F edisamemnectireflew of art o it nvent on shownin'E gszand e V limit-is.- 4, th re islshownian example of a por tio of a card clothi g .as *v ewed from the a side ther oi an p d d w th t ree cen emt s eri ro s I, and ar an d in a s a e ed relationship. The next rowAcOrresponds to row 1 etc. The crowns of the staples are indicated at 5.. According to the example illustrated, each tepr w comprises vei ht stap e eac staple knownper se, points ,or

having, in a manner teeth pro c n fr m t e fou dation. While 1 ile t-he e is llu tr eda t reeirib s t, l -s o ld be {nptedlthat the device according to the invenhen equ ll w l su ed f a y o r s t t pelrlcurine he s tt ng op r tion h founda on 6, icsand .isgeuide :b m ans o a .cuiiie compris n two Pl tes la d 14 a mov-. able merel zletera ly to ther w th the :founda-' tion and receive the required movement from .a ieedznember in the shapeiof, va iced screw Bvwhich engageswa threaded opening 2th inctheziguide 5106317661 :in ;a row, isa'id movement being 1 tion has tab The longitudinal movement :of the :foundation it is efiected by means of an indented feedrollfl and-alcounter-rolzl :Ba mounted tnzthe gllide. The shaft 710 of the .feedroll *9 has mounted thereon-la ratchet wheel illto be engaged by a pawl 12 mounted v on ;ai1e ier:55.. Numeral zlifl diagram matically denotes :the :setting device :by lmeansof which the staples are inserted. :In ;.order:to obtain the vset type illustrated tin Fig. 1, the tounda-tionthas to :perform :the following :movements. Firstly, an intermittent ilateral movement in a manner such that seachstepi corresponds 3110117116 "pitch a of the staples located in a :row, said step Lbeing zhereinbelo zl itermed the staple spacing :step. :Starting irom, for instance, the first staple .l I :i-nthe first row :I it :will be apparent :that :in the example illustrated ethere are required seven staple :spacing steps for each row. Secondly, after eaehxilastlstaple spacing :step each row, ;*-there :is required a step corresponding to :the lateral displacement between two :adjacentstaple rows, thetlastqnamed step being-termed hereinbelow :the staple row displacement step. I:n.-a;.. e. ype of thelliin i l strated;the ar r quired wo short staple d sp acement steps, tha is a 2 t p ED between the first :row and the second row, and is second equally long staple in i step b ,zbetweent esecond-row .c a i rew e iii wostepsharihethe,same direction and an DPEO L t I-Y di ected third ;.stap .e ro .disnlacem n st p 11 which :is twice as long a thewfi st 'Th dly, the foundaev d lon itu inally a :step c rr sp nding t di tanc t be ween two ediacent staple With re e en e to .iEi s. 4 there l n b de c ibed a de ice for enactin t e above nam d mo el in t e r p per order.

'T'lh feed screw :8 y means of :a :ball bearing '12 mounted a ring 13 -.vv-hieh is prevented from axial movement rel tive "to the feed screw and i t readed into a inn-t 1M rigidly secured :to the drama -15 of th machine- 'F he :ring 13 is iiieidly zconne ted -'wi h a radi lly extending arm -E- at t i ht and end of the reed screw. there is -secu;-red :a rate t wheel :13.

A w l b seen 39!!!- fli th atchet w ee I! :has tw :s ts of opposit ly d rected e th 1 and I9, each set comprising :seven teeth correpawl zllihas a face 3:] which :by means of a spring 26 is maintained in abutment with a cam 28 having two arc-shaped cam faces located at different radii, Fig. 6. In a similar way, a face 9 on the pawl 2| abuts, under the action of a spring 30, against a cam 3| which likewise has two arc-shaped cam faces. By means of a rivet 32, Fig. 4, the cams 23 and 3| are rigidly connected with each other and with a ratchet wheel 33 having sixteen teeth. 34. The ratchet wheel 33 is given an intermittent movement in a constant direction by means of a reciprocating pawl 35 mounted on the pivot 22. bers 28, 3| and 33 are rotatably mounted on a fixed shaft 33 which is provided in axial alignment with the feed screw 3 and rigidly secured to the frame l by means of a key connection 37. Between the unit 23, 3|, 33 and a disc 38 secured to the shaft 36, there is inserted a braking ring 33 which serves to prevent excessive rotation of the unit 28, 3 I, 33 during the stepwise turning movement thereof under the action of the pawl 35.

A separate unit 43, 4|, 42 is likewise rotatably mounted on the fixed shaft '33. The last named unit comprises a cam 40, a driving wheel 4| and a disc 42, said members being together rotatable about the shaft 36 and secured against excessive turning movement by means of a friction ring 43 which abuts against a fixed disc 44. The discs 38 and 44 are forced towards the left together with the shaft 36 by means of a compression spring 45.

As will be seen from Fig. '7, the cam 43 has three arc- shaped cam faces 43, 41, 48 each extending over about 120 and located at different radii. The differences between the radii of the cam faces are proportional to the lengths of the staple row displacement steps b 1) and b respectively, Fig. 1. Consequently, the difference between the radii of the cam faces 48 and 46 is twice the difierence between the radii of the cam faces 45 and ll or 41 and 48. A bell-crank lever 5| pivotally mounted on a shaft 52 and having a projecting part 50 is held in abutment with the cam 40 by means of a spring 49. A link 53 is pivotally connected at one end to the lever 5| and pivotally connected at its opposite end with the arm I6. Turning movement of the lever in either direction will consequently result in a turning movement of the ring I3 in the nut I 4 and will thus cause an axial movement of the feed screw 8, guides i, la and foundation 6 in a corresponding direction, the length of this axial movement or staple row displacement step being proportional to the difference of the radii of the corresponding cam faces 46, 47 or 48.

The disc 42 has three equal radial projections 54 in accordance with the three different staple rows of the set type shown in Fig. 1. The projections 54 are equally interspaced around the periphery of the disc and act upon the lever 5 which by means of the pawl l2 actuates the feed roll 9, Figs. 3 and 8, for feeding the foundation in the longitudinal direction thereof. The angular movement of the lever and, consequently, the length of the feeding movement can be adjusted by means of a control screw 56. Also the length of the staple row displacement step is controllable. To this end, the ends of the link 53 are displaceable inwardly or outwardly along slots 51 and 58 by means of screws 59 and 60, respectively, so as to increase or decrease the angle of rotation of the arm l6.

The driving wheel 4| has twenty-four teeth. By means. of a pawl not shown, the driving wheel The memcan be intermittently rotated in the direction of the arrow 62 in a similar manner as the ratchet wheel 33.

The mode of operation of the feeding device described is as follows. It will be clearly apparent from Figs. 5 and 6 that due to the engagement between the pawls 20, 2| and the cams 28 and 3|, respectively, one of the pawls only can at a .time engage the ratchet wheel l1, and that one of the pawls will turn the ratchet wheel in a certain direction, while the other pawl will turn the ratchet wheel in the opposite direction. As a consequence thereof, the foundation will, for instance during the setting of the staple row I, be moved from the right to the left. During the setting of the next staple row 2, the foundation will be moved from the left to the right, etc. The two groups of teeth I8 and IS on the ratchet wheel H are separated from each other by interrupted or nontoothed portions 63. and 64 which result in that the ratchet wheel after-seven consecutive turning movements corresponding to the seven staple spacing steps will not be actuated by its pawls, while the ratchet wheel 33 will continue to make one turning step, whereupon the ratchet wheel M will be turned seven steps in the opposite direction. Then, the wheel |1 Will again come to a rest, while the wheel 33 makes a turning step, and so on.

During the above named rest, the members illustrated in Fig. '7 are put into operation for effecting the staple row displacement step as well as the longitudinal step of the foundation. It will be obvious that three staple rows will be set during one full revolution of the driving wheel 4!. During the same time, the ratchet wheel 33, Fig. 6, has been turned one and a half revolutions in the direction of the arrow 65, While the ratchet wheel I I at the same time has performed three intermittent turning movements alternatingly in the direction of the arrows 66 and 61 and has been at a rest between said intermittent movements. As a result thereof, one staple row displacement step and a simultaneous longitudinal step of the foundation will follow after seven staple spacing steps. Thereupon, seven staple spacing steps will follow in the opposite direction, and thereupon one staple row displacement step and a simultaneous longitudinal step, and so on.

As to the cooperation between the part 50 and the cam 46 it will be seen from Fig. 7 that the part 50 as it passes between cam faces having a small diiference of radius, that is, as it passes from cam face 46 to cam face 41 or from 41 to 48, will be moved radially outwardly, while on its passage between faces having a larger radial distance, that is from the cam face 46, the part 50 is moved radially inwardly towards the center of the cam 40. In the reverse case, the movement from the innermost to the outermost cam face would obviously be rendered more diflicult.

What I claim is:

In a card setting machine of the class described including a holder in which the card clothing is intermittently movable, so as to provide staple spacing steps, a feed screw threadedly connected to said holder, a ratchet wheel secured to said feed screw, two sets of oppositely directed teeth on said ratchet wheel, said sets being separated by interrupted portions, two reciprocating pawls for the two sets of teeth of said ratchet wheel for effecting said staple spacing steps, two cams constructed and arranged to move said paw1salter-.

natingly out of engagement with the appertaining set of teeth, a fixed shaft in axial alignment with said feed screw, said two cams being rotatably mounted on said shaft, means for rotating said cams half a revolution during the time between the first step of said ratchet wheel in one direction and the first step thereof in the opposite direction, means for performing staple row displacement steps, said means comprising a third cam having a plurality of arc-shaped cam faces, said third cam being mounted for rotation on said fixed shaft, a lever constructed and arranged to be actuated by said third cam, means for transferring the movements of said lever into'axial movements of said feed screw for performing the staple row displacement steps, a feed roll for moving the card clothing longitudinally thereof, a second lever constructed and arranged to impart intermittent rotation of said feed roll, a disc mounted on said shaft and connected with said third'cam, said disc having radial projections adapted to act upon said second lever, the number of said projections being equal to the number of cam faces on said third cam, and means adapted during each half revolution of said two cams to rotate said third cam and said disc through an angle of 360 divided by the number of differently offset staple rows to be set in the card clothing.

ANDRE HEINRICH SCI-IAUB.

References Cited in the file of this patent Fournier July 3, 1934

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