US1592792A - Machine for packing biscuits - Google Patents

Description

July 13 1926.

1592792 E. P. WEBSTER MACHINE FOB PACKING BISCUITS Original Filed NOV 2, 1923 6 Sheets-sheet 1 INVENTOR BY 65. f 10.4mm If ATTORNEYO July 13 1926. 1,592,792

E. P. WEBSTER MACHINE FOR PACKING BESCUITS Original Filed 2 3 e Sheets-Sht 2 as g w @v I 0? S x h co -i Q U i INVENTOR July 13,1926. 1,592,792

, E. P. wEBsTER MACHINE'AFSR PACKING BISCUITS ori 'nal Filed Nov. 2,1923

6 Sheets-Sheet 5 l ulllw' [Mun 'HmMlllh' ATTORNEY-0 July "13 Q1926. v 1,592,792

7 E. P. WEBSTER MACHINE FOR PACKING BISQUITS Original F q Nov. 21 2 e Sheets-Shi; 4

w i $9 1k 66 d O I i 57 r-fl INVENTOR ATTORN EYo July 13 1926.

E; P. WEBSTER MACHINE FOR PACKING BISCUITS Original Q 9 6 Sheets-Sheet 5 NHW 210 INVENTOR 672 MW 4 6 J dude/law 1% ATTORNEY E. P. WEBSTER MACHINE FOR PACKING BIsqUI'rs Orizihal Fifled 51 v! 2 1925 6 Sheets-Sht 6 W m m n W INVENTOR ATTORNEY- Patented July 13, 1926.

QFFMIE.

P- WEBSQER, OF NIAGARA FALLS, Ni l-W" TO TLE EFIREDDED WHEAT} COMPANY, or NIAGARA FALLs, new roan,

Yong;

A oonrona'rron on NEW MACHINE FOE PACKENG- BISCUITS.

Application, filed; November 2, 1 923. Serial 672,441,

This invention relates to machines for pfiQk t g articles in cartons, and has. to do more particularly with a machine by which articles of} a firagile structure, such as shredded wheat biscuits, may be packed in cartons rapidly and without damage. The machine includes mechanism by which the articles are placed in layers in. the cartons mechanism which strips oft paper are, placed between adjacent layers of articlesso that the articles are kept separated and prevented from injuring one another in, transit. By way of illu ,ration, an G111- hodiment of the invention will be described which is suitable for packing shredded wheat biscuits in cartons holding a dozen biscuits each, the biscuitsjbeing arranged the carton in four layers, but it is. to be understood that the utility of the invention is not limited to this particular. product, nor to the packing of cartons of this particular ize The packing machine illustrated in the glu -swings is adapted for use witha conveyor on which the biscuits are. carried through an oven and a drying chamber and. at a point outside the oven the biscuits are rcmovedfrom the conveyor by a. delivery dcvice which delivers them to the packing; machine. The. biscuits are delivered in successive groups, each group containing three biscuits, as the present machine is arranged to pack two cartons simultaneously, a delive y device is employed which simultaneousli delivers two groups or" three bis:- cuits each to the machine for introduction into the cartons.

In the accompanying drawings. in which one embodiment of the machine is illus' trated.

Fig. 1 is a. side view of a. packing ma chine with certain. par-ts shown in section.

2 is a plan view of the same,

Fig. 3 is a view in elevation of part of the machine on an enlarged scale, with certain Pa ts sho n in s ion Fig. 3;? a sectional view of a detail of the mechanism illustrated in Fig. 3,

ig. 4 is a, transverse sectional View through the pae iins m h ne Renewed May 11, 1926.

Fig. 5 is a view partly in section and partly in, elevation of a detail 01": the machine Fig. 6 an el-evational view of a part of the machine showing certain associated devices,

7 is a. section on the line C C o t v a sectional view through the insert paper,

Fig. 8 is Fig. 2,

Fig. 9 is of Fig. 7,

10 is a 2, and

Fig. ll is a The biscuits removed from the conveyor (not shown) are delivered to tie packing mechanism in single tile on a platform 26, along which the biscuits are advanced by the rake of the delivery mechanism generdesignated' 20. This mechanism depo v is two groups 0t three biscuits each at each operation and these groups are transferred by a plunger to biscuit supporting platforms 28. There are two such platiiouns and after a group of biscuits is placed on each platform the platform is moved downwardly a step to lower the group of biscuits into the carton. Upon four operations of the device each platform will have received four superposed layers of three biscuits each. that i5 1 quantit; suiiicient to a carton and at the last operation of the series the platform is withdrawn through the bottom of the carton; leaving the biscuits within it. Then the filled on ejected from the machine and an empty carton takes its place. The cartons are fed in pairs and when two empty cartons are in proper position the two platforms to the top of the cartons to receive the first layers of biscuits.

The machine isv provided. with paper inserting devices by which strip of paper. is placed on the top of the plattorin as soon as it reaches the top of the carton and before the ever of biscn-itsis deposited on it.

section on the line DD of a view taken on the line EE section on the line A A of section on the line B B of This paper inserting mechanism operates to lay a strip of paper over each layer of hiscuits placed on the platform so that the adjacent layers are separated and the biscuits kept from injuring each other while the cartons are in transit. The paper inserting mechanism is also arranged to groove the paper longitudinally so that the paper strips are thus stiffened and paper of a stock lighter than would ordinarily be considered suitable may be used.

The cartons are brought into registryi with the platforms 28 by mechanism not shown, and these platforms are carried on rods 39 pivotally mounted on a plunger frame 37, which is movable vertically on rods 38. The frame 37 is connected by vertical rods 58 (Fig. 6) to a cross head 52, which is connected by a rod 49 pivotally mounted thereto at 51 to a piston within vacuum cylinder l7 connected by suitable pipe to vacuum chamber 170. Vacuum is maintained within the chamber 170 by a vacuum pump 168 connected to chamber 170 by pipe 5 169. This cylinder tends to move the frame to its upward position at all times, but such movement is prevented except at the proper time, by spring pressed pawls 55 (Fig. 5) pivoted to the frame at 55 and engaging the teeth 56 of the vertical rods 38. Within these rods are strips 57, also provided with notches, and these strips are moved to carry their notches out of registry with the notches 56, by means of cams 57 on a shaft 58. These cams are operated by gears 57 advanced with a step by step movement by means of a ratchet wheel 7 6 loosely mounted on a shaft 76 of a rock lever 76, this lever carrying a pawl which engages the ratchet wheel. The lever is rocked by suitable driving mechanism (not shown). hen the frame is to be held against upward movement by the vacuum cylinder 47, the pawls 55 engage in notches 56, but when movement is to be permitted the cams 57 raise the strips 57 so that their notches are out of registry with the notches 56, thereby forcing the pawls 55 free of the rods 38 and permitting the movement of the frame relative to these rods.

The frame is moved upwardly in a single movement but is moved downwardly with a step by step movement. For this purpose the frame carries racks G8 on each side, each rackhaving four teeth. A. pawl 69 pivoted at 70 on a reciprocating rod 71 is forced to outer position by a spring 72 and in this position the pawl engages the rack. The rod 71 is mounted within a sleeve 74 having a slot through which the pawl projects. The rod 71 is vertically reciprocated at the proper time by a link 7 5 connected with the rock lever 7 6 and at each downward movement of the rod 71 the frame is moved downwardly a step where it is held against upward movement by the engagement of the pawls 55 with the notches 56.

There are two platforms 28 mounted on rods 39 at either side of the plunger frame 37, and as a layer of biscuits is placed on each platform for lowering into the carton, a strip of paper is fed over each layer of biscuits. The mechanism for feeding the paper is duplicated at each side of the machine and only a single device will be described. The paper is drawn from a supply roll 80, and passes around an idler roller 81, then down around a floating roll 82. From this roll the paper is carried over a roll 8% and thence horizontally to a position over the plunger platform. The roll 84 is supported in the free ends of arms 85 pivotally mounted to the machine frame at 86 and forced upwardly by springs 87 so that roll 84 is held in contact at all times with an upper roll 90, the paper passing between these rolls to the platform. As shown in Fig. 7, the rolls 84 and 90 are provided with interfitting ridges and grooves 88 and 89, so that the paper 91 is grooved longitudinally at 92, as shown in Fig. 7. The spring 87 is of suflicient strength to force the rolls against each other to groove the paper as it passes between them. The roll 90 is fast on a shaft 6 which carries a pinion d driven by a pinion 0 which is driven through a Geneva gearing connection I) from a drive shaft a. The drive shaft a is constantly driven from a suitable source of power at a suitable rate of speed, but the roll 90 is given an intermittent drive so that paper is fed intermittently while the rolls 84 and 90 remain constantly engaged with the paper. It is necessary that the paper should be constantly held so that continuous grooves will be formed in it, and it would not be satisfactory to employ a feeding mechanism for the paper by which the paper is gripped only during the feeding movement.

As the strip of paper is fed horizontally over the platform, lengths of it are severed as desired by a cutter h. This cutter is directly operated from the drive shafta and for this purpose the cutter h is provided with a roller m which runs in. a cam groove Z in a disc 9 mounted on a shaft Lhaving a sprocket j by which a driving connection is made with the shaft (1. The cutter 71. operates in inclined grooves k in a suitable part of the machine frame and the cutter thus cuts across the paper at an angle. The mechanism for feeding, grooving, and cutby' a cam device g which is carried. on: an extension of the shaft 5 of the left-hand cutting'device.

It will be seen that in' this packing machine, the articles to be packed in a carton arefed intermittently in groups which form layers in the carton and over each group is placed a strip ofpaper which is grooved longitudinally. This paper is fed by mechanism which operates continuously to grip the paper to produce the grooves, but is actuated to feed paper only at appropriate intervals. By using a grooved paper the paper stock may be much lighter than that which would ordinarily be required in order to protect the biscuits from injury.

1 claim:

1. In a machine for packing biscuits in cartons, a biscuit support adapted to receive superposed groups of biscuits, means for moving the support within the carton after it receives each group of biscuits, and means for placing a strip of paper over the support between adjacent groups of biscuits received thereby, the said means including paper feeding devices continuously gripping the paper and means for operating the feeding devices in correspondence with the movements of the support.

2. In a machine for packing biscuits in cartons, a biscuit support adapted to work within the cartons, means for moving the support in a series of steps in one direction, and means for feeding paper over the support, including feeding devices continuously gripping the paper and means for operating the feeding devices in correspondence with the step by step movement of the support.

3. In a machine for packing biscuits in cartons, the combination of means for receiving groups of biscuits and lowering them into a carton, and means for feeding paper over the groups so lowered, the said means including feeding devices continuously gripping the paper and means for oper ating the feeding devices in correspondence with the action of the biscuit receiving and lowering means.

4. In a machine for packing biscuits in cartons, a. biscuit support adapted. to receive superposed layers of biscuits, means for moving the support in a series of steps in one direction to lower the layers of biscuits into a carton, and means for inserting strips of paper into the carton between successive layers of biscuits on the support, the said means including devices continuously grippine the paper and means for operating the gripping devices to feed paper intermittently and in accordance with the step by step movement of the support.

5. In a machine for packing biscuits in cartons, a biscuit support, means for moving the support step by step downwardly and returning it to the same position, and means for feeding insert paper overthe support, the said feeding means being arranged to groore the paper;

6. in a machine for packing biscuits in cartons, a biscuit support, means for mov-" 11-5 the support step by step downwardly and returning it to its first position, and meansfor feeding insert paper over the sup port during the periods of rest of the step by step movement, the said means being ranged to groove the paper.

7.111 amachine for packing biscuits in cartons, a biscuit support, means for moving the support step by step downwardly and returning it to its first position, and means for feeding insert paper over the support, the said means being arranged to groove the paper longitudinally.

8. In a machine for packing biscuits, a biscuit support, means for moving the support step by step downwardly and returning it to its first position, and means for feeding insert paper over the support, the said means including a pair of rolls having interfitting ridges and grooves and resilient means for holding the grooves in engagement.

9. In a machine for packing biscuits in cartons, a biscuit support, means for moving the support within a carton, and means for feeding insertpaper over the support, the said means being arranged to groove the paper.

10. In a machine for packing biscuits in cartons, a biscuit support, means for moving the support within a carton, and means for feeding insert paper over the support, the said means including a pair of rolls gripping the paper and Geneva mechanism through which the rolls are driven intermittently.

11. In a machine for packing biscuits in cartons, a biscuit support, means for moving the support to introduce biscuits into the cartons, and means for feeding insert paper in selected lengths over the support, the said means including feeding rolls continuously gripping the paper, means for operating the rolls intermittently to feed paper, and a cutting mechanism actuated by the roll operating means.

12. In a machine for packing biscuits in cartons, a biscuit support, means for moving the support to introduce biscuits into the cartons, and means for feeding paper to be inserted between groups of biscuits within the cartons, the said means including a pair of rolls yieldingly gripping the paper at all times, means for rotating the rolls intermittently to feed paper, and means for cutting the paper transversely, the said means being operated in correspondence with the action of the feeding means.

13. In a machine for packing biscuits, a biscuit support, means for moving the same step by step downwardly and returning it to first position, means for feeding insert paper intermittently adapted to groove the paper longitudinally and including rolls, spring tensioned means for holding said rolls in yielding engagement and Geneva gearing, and means for cutting the insert paper transversely having a drive connection with the insert paper feeding means and including :1 cutter Working obliquely in 10 inclined guides and carrying a roller, and a member having an endless cani track Wherein said roller Works.

In testimony whereof I affix my signature.

EARL P. lYEBSTER.

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