US1905687A - Folding mechanism - Google Patents

Description

A ril 25, 1933. c. s. CRAFTS FOLDING MECHANISM Filed Jan. 19, 1952 2 Sheets-Sheet l A ril 25, 1933. c. s. CRAFTS FOLDING MECHANISM Filed Jan. 19, 1932 2 Sheets-Sheet 2 Patented Apr. 25, 1933 UNITED STATES,

CURTIS S. CRAFTS, OF OAK PARK, ILLINOIS, ASSIGNOR TO' THE GOSS PRINTING PRESS PATENT OFFICE COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS FOLDING MECHANISM Application filed. January 19, 1932. Serial No. 58 "?,45)8.' v

The present invention relates to folding mechanism and more particularly to new and useful improvements in the folding mechanism of rotary printing presses for displacing certain of the papers in the delivered stack and thereby dividing the stack into groups each of which contains a predetermined number of papers.

Objects and advantages of the invention will be set forth in part hereinafter andin part will be obvious herefrom, or may be learned by practice with the invention, the same being realized and attained by means of ed out in the appended claims.

The invention consists in the novel parts,

constructions, arrangements, .combinations and improvements herein shown and described. The accompanying drawings, referred to herein and constituting a part hereof, illustrate one embodiment of the invention, and together with the description, serve to explain the principles of the invention.

I Of the drawings:

' Figure 1 is a side elevation illustrating one embodiment of the present invention, certain of the parts being broken away; Figure 2 is an end elevation of the mecha- 'nismshown in Figure 1; and I Figure 3 is a fragmentary view similar to Figure 1 and showing the parts in a different position.

The'present invention is directed to providing means for insuring a uniform arrangement or stacking of the folded products as they are delivered regardless of the. speed of operation of the folding mechanism. Another object of the invention is the provision of such means which will not interfere with the normaloperation of the displacing or product counting means.

In the usual form of delivery mechanism employed in connection with rotary folding mechanism for high speed printing presses, the folded products are individually delivered into the pockets of a rotary fly which lowers and turns the product, finally layingit on a series of moving delivery belts. When such a mechanism is operated at high speed,

, the instrumentalities and combinations pointthe movement of the product by the rotary fly creates a relatively large amount of centrifu gal force tending to throw the products out of the pockets of the fly. The products are also customarily brought to rest against the stationary-stop after which they drop on to the delivery belt,*a-nd at high speeds there is a considerable tendency of the products toi bounce away from the stop instead of drop ping vertically on to the delivery belts. These uncontrolled movements of the products interfere withthe uniform stacking on the delivery belts, rendering it difficult, and often impossible, to determinewhich of the products is the one indicating the count. Consequently, an incorrect number of products may be picked up by the operator from the stack on the delivery belts. 4

In accordance with the present invention, means are provided for preventing movement of the products by centrifugal force, and for holding the product against bouncing as it is suddenly brought to rest and dropped on to the traveling delivery belts.

Referring now in detail to the embodiment of the invention illustrated by way of ex;

ample in the accompanying drawings, the rollers 1 and 2 of thetransverse folder, which makes the final cross-fold in the newspaper, are journalled in the side frames 3. A rotary fly 4 has its shaft 5 also journalled in frames 3 and is providedwith'a plurality of arms 6,

' between which are the pockets 7 for receive -1ng completed newspapers as they are indi-.

from I the folding rollers vidually delivered 1 and 2.

As is usual, the rotary fly 4 isrotated and the newspapers are individually delivered.

into the pocket 7, and by rotation (stale fly they are brought against a stationary stop and finally dropped on to a delivery device, such as-a travelling belt S'running over roller 9 journalled in the arms 10. The papers, as delivered on the belts 8, are arranged ina row or'series, with certain of said papers displaced from the otherwise uniform arrangement to indicate groups, each of which contains a predetermined number of newsf paperss r For effecting this periodic displacement of certain of the newspapers, any suitable form of mechanism may be provided such as that shown in the prior patent to Evensen, No. I

1,825,998 of 1931. As embodied, a kicker or flipper arm 15, adapted to operate periodi cally upon a folded paper in the fly and prevent its coming back into the fly as far as it otherwise would just as itis delivered, is mounted on a shaft 15 connected by link 16 to arm 16. Arm 16 is mountedon a shaft 17 journalled in the machine frame 3, and at one end of said shaft is an arm 18 provided at its end with a cam roller 19 cooperating with the slowly driven cam 20, geared to and driven from the folding mechanism.

In its general features, the mechanism just I described in detail is similar to the usual form of delivery mechanism, and if operated at high speeds, causes the irregular delivery of the products as they are laid on the delivery belts v8. The sudden stopping of the newspapers as-their folded edge is brought into contact with the stop 21,'causes them to bound back and away fromEthe stop and prevents their dropping verticallyon to the delivery belts. Furthermore, the centrifugal force caused by the rapid movement of the newspapers around shafto .as a center, also tends to move the papers outwardly of the fly, the extent of this movement depending on the speed ofthe press.

In accordance with the present invention, means are provided for retaining the prodnets-within the pockets during a considerable portion of their arcuate travel, holding them against outward movement until the folded edge engages the stop 21, thus preventing bouncing of the product and insuring that the product drops vertically on to the delivdirectly beneath the folding roller 1 and.

extend .downwardly'and to one side of the fly 4. Guide 25 is provided with movable extension 28, independently mounted on shaft 29 which is journalled in the side frames 3, and extension 28, as well as guide 25, is formed with an inner face substantially concentric with the shaft 5, and spaced from the fly-a distance just-sufiicient to permit it to engage with the outer edge of the newspapers as they are received within pockets 7 and moved by the fly i. As embodied, a pluralityof setsof guides 25, 28* are employed, one set between each pair of arms 6, but any other suitable number may be employed.

Movable guide 28 is of sufficient length so that the outer edge of the newspaper is moved clear ofits lower end just after the inneror folded edge of, the paper has been brought to rest against stop 21, at which time the rotational movement of the newspaper Guides 25,

. eration of the displacing means,

terference of guide 28 with the normal operation of the kicker 15, and this is effected by moving guide28 outwardly in timed rela-" tion with the movement of'kicker 15. For this purpose, the kicker actuating lever 16 is rigidly connected with a lever 34 fast on shaft 17 and connected by link 35 to an arm 36 fastened to and at one end of shaft 29. As kicker 15 is moved to displace one of the newspapers, movable guide 28 is also moved away from the fly A to a position such'thatit does not interfere with the intended displacement of the group-indicating newspaper. of the drawings, which illustrate' the position of the parts at the instant of contact of the newspaper with the kicker 15;

The invention in its broader aspects is not.

limited to the specific mechanisms shown and described but departures may be made therefrom withinthe' scope of the accompanying claims without departingfrom the. principles of the invention and without sack riflcingits chief advantages.

VVhatI claim is 1. A delivery mechanism for fly into which folded products are delivered,

a moving surface onto which the'productsl are placed by thefly, means for holding the products within the fly during a portion of its revolution, means'for displacing certain of said products as said products are delivered and means for moving said holding means to permit normal operation of the displacing means. I

2. A delivery mechanism for high speed folders including in combination a rotary fly. into which folded products are delivered, a moving surface onto which the products are placed by the fly, means for retaining the products within the fly during a portion of its revolution, means for displacing a prod- I uct each time a predetermined number of products has been delivered and means for moving said retalnlng means to permlt op- 3; A delivery mechanismfor high speed moving said guide-out'o-f operative position.

4. A delivery mechanism forhigh speed folders including in combination a rotary This operation is shown in Figure 3' highspeedfolders including in combination a rotary foldersincluding in combination arotary fly fly into which folded products are delivered, a moving surface onto which the products are placed by the fly, a guide adjacent to said fly and preventing outward movement of the products except at the bottom of travel of said products, a pivoted member mounted adjacent to the bottom of said guide and means for periodically mo-vingsaid pivoted member away from said fly.

5. A delivery mechanism for high speed folders including in combination a rotary fly into which folded products are delivered, a moving surface onto which the products are placed by the fly, a guide adjacent tosaid fly and having a pivoted member mounted adjacent to its lower end, said guide and pivoted member serving to retain the products within said fly until they are brought into proximity to said moving surface and means for periodically moving said pivoted member away from said fly.

6. A delivery mechanism for high speed folders including in combination a rotary fly into which folded products are delivered, a moving surface onto which the products are placed by the fly, a guide adjacent to said fly and having a pivoted member mounted at its lower end, means for displacing a product each time a predetermined number of products has been delivered and means for moving said pivoted member away from said fly each time said displacing means is operated.

7. A delivery mechanism for high speed folders including in combination a rotary fly into which folded products are delivered, a moving surface onto which the products are placed by the fly, a guide adjacent to said fly and having a pivoted member mounted at its lower end, means for displacing a product each time a predetermined number of prod ucts has been delivered and means for moving said pivoted member away from said fly in unison with the operation of the displacing means.

8. A delivery mechanism for high speed folders including in combination a rotary fly into which folded products are delivered, a moving surface onto which the products are placed by the fly, a guide adjacent to said fly and having a movable member mounted at its lower end, a kicker for displacing a product as it is delivered each time a predetermined number of products has been delivered and means for moving said member away from said fly in unison with the op eration of the displacing means.

9. A delivery mechanism for high speed folders including in combination a rotary fly into which folded products are delivered, a moving surface onto which the products are placed by the fly, a guide adjacent to said fly and having a movable member mounted at its lower end and means for periodically moving said movable member away from said 10. A delivery mechanism for high speed folders including in combination a rotary fly into which folded products are delivered, a moving surface onto which the products are placed by the fly, a guide adjacent to said fly and having a movable member mounted at its lower end, and means for periodically moving said movable member and for displacing 2, product as it is placed on said moving surace.

11. A delivery mechanism for high speed folders including in combination a rotary fly into which folded products are delivered, a moving surface onto which the products are placed by the fly, a guide concentric with said fly and spaced therefrom to engage the outer edge of the products as they are moved by said fly, said guide having a movable portion, a kicker periodically operated to dis-V place certain of said products and means for moving said portion as said kicker is operated;

In testimony whereof, I have signed my name to this specification.

CURTIS S. CRAFTS.

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