US1771869A - Packaging machine - Google Patents

Description

y 29, 1930- c. BALDENHOFER 1,771,869 PACKAGING MACHINE Filed April 26, 1928 15 sheets-sheet 1 A TTOE. A/f Y5 y 1930. c. BALDENHOFER 1,771,869

PACKAGING MACHINE Filed April 26, 1928 15 Sheets-Sheet 2 WWW @Mm/L J W+ JIM/ July 29, 1930. c, A E Q 7 1,771,869

I PA'CKAGING MACHINE Filed April 26, 1928 15 Shets-Sheet 3 1 llIIIIIII I II INVENTOR BY J r W ATTORNEY y 1930. c. BALDENHOFER 1,771,869

PACKAGING MACHINE Filed April 26, 1928 15 Sheets-Sheet 4 f l/Yl/ENTOL y 29, 1930- I c. BALDENHOFER I 1,771,869

PACKAGING MACHINE Filed April 26, 1928 15 Sheets-Sheet 5 /N I E N TOE JMZM? A TTOGNEYJ July 29; 1930. c. BALDENHOFER 1,771,869

PACKAGING MACHINE Filed April.26, 1928 15 Sheets-Sheet 6 INVENTOR ATTORNEY July 29, 1930. .g,- 0 ER 1,771,869

- IJAOIKAGING MACHINE Filed April 26, 1928 15 Sheets-Sheet ATTORNEY.

PACKAGING MACHINE Filed April 26, 1928 15 Sheets-Sheet 8 7s we /14 v /69 [6 m5 I41 142 I43 mmmk BY J MM) W ATTORNEY July 29, 1930. Q BALDENHOFER- 1,771,869

PACKAGING MACHINE Filed April 26, 1928 l5,Sheets-Sheet 9 INVENTOR BY f I A TTORNEY y 29, 1930- c. BALDENHOFER 1,771,869

PACKAGING uAcHIm: I

v Filed A ri; 26, 1928 I 1:; spans-sneer .10

AfTozNL-Ya' y 1930. c. BALDENHOFER 1,771,869

PACKAGING MACHINE Filed April 26, 1928 v 15 Sheets-Sheet 14 wvnvroe/ A TTOKM/L Yd 1 Patented My 29, 1930 85 UNITED ST PATENT: N BALDENHFER, or sramerrnnn, onto. l i

Application filed April 26, 1928. Serial No. 278,105,

My invention relates to packaging mashown in Figure 8' where the carton is being chines. opened It is the object of my invention to provide Figure 15 is a similar view showing the means for packaging material that comes in carton just beingopened '5 strands or filaments, such as steel wool, tex- Figure 16 is a top plan view of the holding tile materials and food products that are fingers Where the cartons are-located." formed in attenuated filaments. Figure 17 is a detail view partially in sec- Referring to the drawings: tion showing the arrangementiof the carton Figure 1 is a side elevation from the operelevating mechanism and the carton opening I ators side of the machine; and discharging mechanism; q Figure 2 is a rear elevation'of the machine; Figure 18 is a bottom plan view of the cut Figure 3 is a perspective of the machine ofl' mechanism for cutting the filaments or"-- f th from; th r of strands in predetermined lengths;

Figure 4 is an end elevation on the left hand- Figure 19 is a view of the same mechanism side of the machine; .on the lines 19--19 of Figure 18;

Figure. 5 is an end elevation on the right Figure 20 is a side elevation partiallj in hand side of the machine section in detail of the filament 'trap door I Figure 6 is a diagrammatic view of the pofeed 1 sition of the several parts as a filled carton is Figure 21 is a diagrammatic view of the 20 about to be removed from the machine; loading spindle in its retreated inoperative .7 Figure 7 is a similar view with the filled position; carton removed from the machine and a new Figure 22 is a similar view in operative po charge of material being accumulated on the sition; a t v s loading spindle; Figure 23 is a section through the spindle Figure 8 is a similar view showing the load head andthe actuator head 4 I on the spindle accumulated and the new car- Figure 24 is a vertical section through'the {ondbeing opened for the reception of the suppglrting and driving sleeve of-theloadi-ng";

spin a; Figure 9 is a similar view showing the load Figure 25 is a section on the line 25-25 of being inserted in the new carton; Fi we 24; i I r Fi ure 10 is a top plan view of the carton igure' 26 is a detail fra mentary view of handing mechanism showing the parts in the operative mechanism %or reversing the the position corresponding to those in Figdirection of movement of'the loading spindle ure'8 Wltlltllfi carton being opened and of the cam for retreating-the loading 1 Figure 11 is a similar view with the openspindle and advancing it showing the parts in ing mechanism in withdrawn position, as in t e retreated reverse movement position; Figure 9,, with the holders for the carton still Figure 27 is a similar view showing the in position but the opening mechanism withparts in advanced forward movement or drawn so that the carton can be loaded; as in winding position; i Figure 9; Figure 28 is a section on the line 28*28 of 90 Figure 12 is a similar view showing the Figure 2; e parts in position with the holders Withdrawn Figure 29 is a section on the line 29-29of so as to permit of the removal of the loaded Figure 27 looking in the direction of the a carton as in Figures 6 and 7; arrows 1 Figure 13 is a detailed view of the holder Figure 30 is a section on theline 30-30 of 5 Y cam which actuates the holder into holding Figure 27 looking in the direction of the arposition and holds it there through opening-"rows. and loading of the carton; The machine of my invention is fed with Figure 14 is a section on the line l t-14 of a plurality of continuous strands of material Figure 10 showing the parts in the position to be loaded, such as steel wool. i ice After the strands have been fed through the machine a predetermined length down to the trap door of the feeding chute, I cut od leaving the load in the carton and, upon being retreated to its initial position, it comes to rest until the winding operation has to start again.

re 1 which Then the loaded carton is elevated and removed from the machine. A new carton is moved into osition ready for being opened from its foiiied position to its open position to receive its load.

In detail, referring to the drawings, my machine consists of the following, parts: The legs 1 support a table consistin ofthe side plates 2and 3 on the front and ack respectively of the machine. These side plates have mounted upon them a tab1e4. Mounted upon this table on the right hand end are a pair of tubular, vertical supports 5 and 6 and on the left hand end a single tubular support 7 These three supports are adapted to carry the, feed table 8.

Feed table On the feed table 8 is mounted a support in bracket 9 which carries a pair of horlzonta bearing sleeves 10 and 11. These sleeves carry respectively the feed driving shaft 12 and the feed driven shaft 13.. On these shafts are mounted inions 14 and 15 which intermesh so that t e two feed shafts turn together.

On each feed shaft there is mounted a feedin head consisting of a disk 16 and a plu of parallel spaced feeding fingers 17 extend parallel to the axis of the shaft on which they are mounted. Within the cylindrical space formed by these spaced fingers in the resilient tubular member 18. These fin era are so arranged that they interlock or intermesh as they rotate, one finger on one shaft bein arranged to project between the adjacent ngers onthe other shaftbut not to engage them so that the fibers or strands of wool, or other material, will be engaged frictionally when passing between these feeders and engage frictionally by the resilient filler 18 without injuring the'filaments or fibers, but at the same time, properly feedin them as desired.

e Shaft 12, which is the driving shaft be the feeding mechanism, is supported on its rear end upon a bracket 19. The shaft carries a sprocket 20 which is actuated by the chain 21. An idler sprocket 22 is carried on an arm K 23 on the bracket 19 in order to maintain the chain taut. This chain is, in turn, mounted upon a driving sprocket 24. The driving sprocket 24 is carried on a shaft 25 supported in the bracket 26. This shaft 25 carries a gear 26' which, in turn, is engaged with an idler car 27 carried on the shaft 28 which, in turn, is supported b the arm29 mounted in the bracket 30. This idler gear meshes with the gear 31 that is carried in the bracket 32 and drives the shaft 33. The sprocket 24 and its "shaft 25 is driven by means of a sprocket 34 on the shaft 25 which, in turn, is actuated by a chain 35. This chain, in turn is driven by a sprocket 36 which is mounted on the shaft 37. This shaft is carried in depending brackets 38 on the bottom of the table 8. It also carries the driving sprocket 39 that is actuated by the driving chain 40 which extends to the bottom of the machine where the chain is actuated by the driving shaft 41 of the speed reducer 42 that is actuated by the motor 43.

Out-off mechanism The shaft 33 has its left hand end supported in a bracket 44 on the table 8. It is pro.- vided at its free end with a bevel gear 45 which meshes with another bevel gear 46. The details of this mechanism will be seen in Figures 18 and 19. Figure 19 is viewed from the back of the machine. The gear 46 to the cutter shaft 47. The upper end of the cylindrical member is provided with an arm 53 that is connected to a helical spring 54, the free end of which is permanently attached to the standard 55 carried on the feed table 8.

The lower end of the shaft 47 projects through a bearing sleeve 56 which is formed as a part of the table 8. It is supported in position by the collar 57 that is keyed thereto which rests upon the bearing sleeve 56. The lower end of this shaft passes through a stationary shearin shoulder 58. The shaft itself projecting be ow the shearing shoulder 58 carries a horizontally extending swinging knife '59 which is spring pressed in position by the spring 60. As this knife swings with the shaft 47 it serves to cut off the strands which are being fed by the feed mechanism into the hopper or guide chute 61. In order to effect this cutting operation it is necessary that the knife 59 swings suddenly with great loo gear 46 and the'pin 49 enga es the pin 51. l

, This serves tomove the shaft 4 with its knife and to rotate itrinto cutting position in the i direction of movement when it is actually outare inserted. This opening is directl- .above tial position causing it to cut the strands in.

ting the strands; This movement of theknife to cutting position continues against the resistance of the spring 54 until thepin 49 and the pin 51 slip by one another where-.

upon the spring 54 moves suddenly to its initWo which are interposed between it and the shearing shoulder 58 having'been fed through I I the opening 63. I I

I Guide mechanism The chute 61 constitutesa guiding mechanism. A rear Wall 61 and a side--Wall61" form the chute beneath theknife drum 62,,

within whichthe knife 59 rotates. ,Thefeed table 8 has an opening 63 ad] acent the shearing'shoulder 58 through which the strands the area designated 61 which is define .on one side by'the uiding platens The opening thus arrange for the direction of the strands is controlled and, u on occasion, closed. by

the trap. door-.65 w ichprevents the wool from dropping'd'own on the wrapping spin: dle 66 until the spindle is in proper'position for carrying out the wrapping operation.- The details of this trap door mechanism are seen in Figure 30. The door 65 is mounted upon an actuating shaft 66 carried inspaced brackets 67 upon the table 4 of the-machine.

I The end of the shaft 66 is provided with an arm 68 connected to apitman69 which, in

lever 74 that is .pivotally sup or'tedat'75 on a bracket 7 6 carried on the ta 1e 4; 'The cam "lever 74 projects through an opening 77 in the table floor and extends to a pointewhere it is engaged by a cam, 78' mounted on the shaft.79. This shaft 79 andthe method of driving it can be seen clearly-inFigure 28. The shaft 79 is drivenv by the bevel gear80 which, in turn, meshes with the bevelipinion I 81 carried onthe shaft 82 on the back 'ofthe machine. This shaft 82 carries 'a sprocket .83 thatyin turn, is driven by a chain '84 that extends down to alsprocket 85 onthe speed reducer shaft 41 that is driven by the mo-' toms.

Spindlloizding mechanism j Thespindle loading mechanismis actuated,1 as to its movement, from inoperative to winding. position and from winding to loading position and back to its initial position by the cam 85 mounted on the shaft 79 and driven thereb This oem and associated rnechanism wi l-befoundillustrated in detail :in Figures 21,22, 23,24, 25- 26, 27r-and 28. Thecam' 85 has a-groove86 inwhich travels --.:a ,camroller-B'T on the lever ,88 thatis pivot ally supported on the 'shaft89 in the sleeve 90 carried on the. inside of the rear wall 3 of when the roller gets to the point designate 91 the. spindle will be at its most advanced position and as the-cam-travels to the position designated'92 the spindle will in its; retreated position. But-it is arranged to dwell, as at 93, while it is inits forward position and'has reversed itstdirection'of movement to unwind itself from thein'terior of the roll of steel wool which constitutes theload desig nated 94 to be placed in the carton. lHaving disengaged itself by reversinghthe rotation and the withdrawal of the knife edges 66' ;on the spindle 66 which causes the wool to wrap around thespiridle, the spindle-can then be withdrawn to the position shown in Flgure 6. u i

The spindle itselfcarries a sprocket 95 which in turn is driven by a chain 96 This chain passes around alarge sprocket 97 'car- 'ried on a shaft 98 beneath thetable 4; The

shaft 98 carries, in turn, a small, sprocket 99 that is'actuated by .a'chain 100. The chain 100 is driven by the sprocket 101. See Figure 29.) f The sprocket 101 is mounted on the shaft 102. A Thisshaft'ca'rries a sprocket 102. The sprocket 103 is driven by the chain 104 throughla; sprocket 105 that is carried on the stub shaft 821"Thestubishafti82 is rear wall'3 lofthe machine. 1The sprocket 8310a thetsha' ft 82 is drivenibyi the main bearingchain 84. It will be observed from Figure28 that the chain 104 'is'cai-ried' on an idler" sprocket 106 which inturn' is' carried on the shaft 109Iwhich is journaled 'inthe bracket 110., The shaft 102 is vlikewise car-' riedin the journalbrackets 1 11 and-1:12.

the machine. The cam is-so arranged that,

' mounted in the bearin'gsIOTand108l'on the Reversing mechanism I I Q i Thespindle is reversed in directioniwinding the wool'into a load in one direction and then reversing thespindle movement in order.

to leave the load withifl'fihe carton. ;.,.Ior

this purpose the sprocket 101' is I provided with a toothed hub 113 which engages with the toothed side 114 ofithe slidable clutch member 115 which is engaged inj'a gi'oove 116 by theyoke 117. The other side of this member 115 is provided with teeth 11 8" for engaging withcorresponding teeth 119 on the hub of'the sprocket 120. This rocket" carries the chain 121, the upper side 0 which engages with thesprocket 1220a thefshaft 98-"so'that the direction of movement of the shaft on the spindle 66 is reversed. t

I The cha'n 121 is carried, on an idler sprocket 123 supported? on a. bracket 124. on the inside of the side wall. 20f the machine.-I

The spindle shaft 66 is carriedin the sleeve 125 ofv the supportin bracket 126'. This. sleeve125. is a bearing-s eeve keyedby the key 127 to theshaft 66.. The sprocket 95 is likewise keyed to'this shaft so that the shaft can slide'through it while the sprocket can turn withit; On the free. endlof the shaft 66 is a head 128 having across member 129-fitting within the 'aws 130" on theend of" the lever 88. This cross member 129' on. either side'extends into a slot 210 formed in up-' right spaced guide members '13 carried on vator.

the table 4. The shiftin of the'clutch membe r115 iseflected throng the yoke 117 which i is. carriedon the lever 132 whichis pivotedat 133. The lower end of this lever carriesa cam roller 134 that is actuated by the earn 135. I V

The'spindle shaft proper 66 has an annular onthespindle. v v i 7 Bow supply mechanism guard 66? for limitingthe position of the load The box supply mechanism is shown in detail in Figures 14, 15, 16 and 17 A supply chute 136 is, provided. in which the cartons in flat foldedcondition are located upon an elevator 137 This elevator is connected on either side to chains138 which pass over guidepulleys 139 and 140. The free end of the chain depends with a counter balanc ng weight 141 onthe end thereof. Mounted on the shaft 163 is a crank 202 connectedto a. -pit'rnan 203- carrying a strap eccentr c. 204 on its free end surrounding an eccentric 205 that is mounted on the shaft 206. This eccentric shaft 206 carries a sprocket 207 which isen agedby a. pawl 208 carried in the frame Thus, the elevator is moved by the eccentric stepby step in. synchronism with the corners. 148 and 149 of the boxes. The

other corners are designated 15 0 and 151.- The function of these plates is to hold the corners of the boxes yieldi'ngly while the other corners are being engaged interiorly by the box spreader 152which is introduced into the interior of thebox for opening the .boxg I Boocbpening mechanism 2 U 7 c intop "This boxf opening mechanism consists of atriangular shaped spreader 1:52 that iscarried on the. shaft 153. This; shaft has avcross a member 154 mounted in a yoke 155 of the law: 156'. cross inembeitraiiels in slots 1'57 ofparallel spaced guide members 158 on thetable 4.. The lever156 is pivoted near its lower end. at 159.. Its lowerend carries a;

cam: roller 160' whichtravels in theslot 161 ofthe cam- 162 on the shaft 163;. This shaft 163 extends between the side walls. of the machine and through them and is driven by the sprocket 164 which,,.in turn, is actuated by the chain 165, this chain receiving its power from the sprocket 166 on the shaft79.

The reciprocation of the opener 1'52 serves to open the box. In order to hold this box in its open position and to formlimiting mem-.

bers to keep the box from being pulled out of the-machine when the openeris thrust on the interior thereof I" provide reciprocating holdi-n aws which are moved into position to hol the boxwhile it is being opened and while it is being loaded but' which are withdrawn: at the proper interval after the box is loaded and. when. the box'is being ejected from the machine.

In order toshow the successive stages of 7 operation of this box holding mechanism and box openmg mechanism, I have provided theviews shown in Figures 10,11, 12, 13, 14, 15, 16 and 17 7 7 I provide a pair of spaced slotted guide members 167 and 168 which are bolted by'the bolts 169to thesupporting blocks 170 mountedon the table top4. On either one of these blocks 170 are laterally extending brackets 171, the free ends of which act as supports for the helical springs 172 which are connected at their inner ends to eyes 173 that are attached to the-slidingzplates 174, the innor ends of which are formed into angular box supports for engaging. the upper walls 144 and 145 of the box when it is in itsexpanded condition. These box supports are designated 175. Behind each of the box supports 175 are located the rollers 176 on the vertical shafts 177 mounted on the slides 174.

On either side of the box there are located holder cams consisting of fiat plates having fingers 178, cam surfaces 179, and body members 180, such body members 180 having slots 181 through which project bolts 182 carried by the spaced cam actuating arms 183. These cam actuatingarms 183 are connected togetherby the plates 184. These inner ends of thecam actuating arms so'connected are adapted to move with the cross member 154 and to reciprocate in the guides 167 and 168.

The side members 185 carry spring pressed plungers 186 on. their forward ends, which are adapted to yieldingly engage the ends 187 of the holder cams 17 8, 179. These yielding pins*1-86"serve to pressthe holder cams sition to move the boxholders 175 into inner position. 1 1 1 v a V BOm ejecting mechanism f "ejecting mechanism consists of a pitman 188 pivoted on a cross member 189 which works in a slot 157. A spring 190 is connected tothe sliding members 184 at 191 and to a pin 192 at the point of ivotal mounting of the pitman 188. The ree end of the pitman is formed into a aw 193 that is pivoted at 194 to the lower end of the elevating lever 195. This elevating lever is pivoted at 196 to a bracket 197. The lever carries a cam arm and a box engaging finger. The box engaging finger is designated 198 and is adapted to extend inside of the box to lift it when the box holders have been withdrawn laterally by the springs 172. That portion of the cam armde'signated 199 is adapted to rest upon a guide roller 20-0 carried on the spindle 201 on the upright 7 when the cam levers so rest on the roller it is in horizontal position for engaging with the box. When the cam lever 200 is in engagement with the roller it is going into the box and when the roller engages with the spindle 201 the box upengages with the spindle 201 the box is be- .ing elevated in filled condition.

Method of operation the ends of the box closed. While this is going on strands of wool have been fed by the feeding mechanism through the opening 63 into the path of the knife 59. When a box holders 175 towards each other.

suitable length of wool has been fed through the knife 59 is released under the tension of the spring 74 and suddenly swings across the wool cutting it in two. Its tendency to drop down at its lower end in the path of the revolving spindle 66 is restrained by the trap door which does not open until the spindle has been moved to a position beneath the trap door and is revolved in a winding direction. The strands are then wound on the spindle, as shown in Figure 7, until the entire length of strands has been com letely wrapped on the spindle forming the bundle or load 94. While this has been going on the lever 156 has been advanced by the cam 162..

carrying with it the box opener 152 which has been inserted within the next folded box. This forward movement is also adapted to press the holder cams forwardly moving the The continued movement of the parts withdraws the box opener but leaves the cams 179 in position to hold the box holders in their inner position because the cam actuating arms 183 can move relatively to the holder cams because of the bolt 182 working in the slot 181. As soon as the box opener 152 has been withdrawn the load of wool has been completely wound and it is thrust into the open box, as in Figure 9 by reason of the movement of the lever 88 under the influence of the cam 85. Durin this time the spindle 66 is rotating in a winding direction. As soon as it gets within the box the cam 135 gets to a point where it shifts the clutch 115 reversing the direction of the spindle 66 and simultaneously the cam groove 86 working on the roller 87 of the lever 88 starts to withdraw the spindle 66 leaving the load 94 in the box. When the spindle reaches its rearmost position the clutch is again shifted and the spindle starts to revolve in its forward direction again, whereupon the rewinding operation takes place as soon as the trap door permits the wool to have access to the revolving spindle.

By the time that the load has been deposited in the box the lever 156 is withdrawn to a point where the bolts 182 et to the end of the slots 181 and withdraw t e holder cams allowing the box holders to separate under the ed in the box the lever 156 is withdrawn to a ejecting finger 198 with its cam arm may be inserted within the box and start to elevate the box as it is pushed backwardly due to the engagement of the jaw 155 with the cross spindle or guide 189 of the pitman 188 which is attached to the lower end of the lever 195.

It will be understood that I desire to comprehend within my invention such modifications as may be necessary to adapt it to varyin conditions and uses.

avin' thus fully described my invention, what I c aim as new and desire to secure by Letters Patent is 1. In a packaging machine for strand material, means to feed the strands, means to sever the strands in predetermined lengths, means to guide the strands to a winding means to wind the strands into a load, means to insert the load in a carton, means to withdraw the winder from the load in the package, means to deliver a carton, and means to. open the carton.

2. In a packaging machine for strand material, means to feed the strands, means to sever the strands in predetermined lengths,

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