US1865282A - Jogger for printing presses - Google Patents

Description

June 28, 1932. E. SMITH ET AL 1,865,282

JOGQrER FOR PRINTING PRESSES Filed July 26, 1930 t Tlvenrors 3.5711") lh BIPoweJT W Am Patented June 28, 1932 UNETED STATES PATENT QFFICE ERNEST SMITH AND VJFLLLIAM B. EOWELL, OF HAMILTON, UN'IARIO, CANADA, ASSIGN- ORS T0 APPLEFORD PAPER PRODUCTS LIIEITED, OF HAMILTON, CANADA JOGGER FOR PRINTIN G PRESSES Application filed July 26,

This invention relates to straightening mechanism or joggers for aligning sheets in an orderly pile on a receiving or jogging table as they are delivered from the sheet delivery mechanism of printing presses.

The object of this invention is to provide a jogging attachment of the class described that will be simple in construction, comparatively inexpensive to manufacture and more etficient in use than those which have heretofore been used.

This object is attained by providing a device of the class described in which the jogging members will act alternately on the sides and ends of the sheets instead of simultaneously on all four sides as in the case of joggers heretofore designed. Sheets are usually delivered from the press to the jogging table out of alignment. To align the sheets two processes are necessary. These may be conveniently called straightening and positioning. Straightening consists in putting the edges of the newly delivered sheets parallel with the jogging plates and with the edges of the previously delivered and aligned sheets. Positioning consists inputting the sheets in vertical alignment. The straight ening operation necessarily also involves positioning two sides of the sheet. By our construction the jogging plates on two opposite sides of the sheets close in simultaneously, thus strai htening the sheets. Then the jogging plates in the two opposite sides close in simultaneously, thus positioning the sheets. Thus the alignment is effected in at least two operations. It will be understood that in practice the two operations will not be as distinctas might be expected from the above description since it will sometimes require several operations to com plete the alignment. Experience has shown that by this method the sheets are aligned more quickly and accurately than with previously kn own. oggers in which the four ogging members operate simultaneously, thus combining the straightening and positioning operations. lVith this latter method of operation the jogging members act against each other to a greater extent, and the opposing 1936. Serial No. 470,906.

forces tend to cause the sheets to crumple or curl up at the corners.

It is also a feature of this invention that the ogging members are preferably reciprocated several times for each operation of the sheet delivering mechanism.

The jogging arms are operated by a motor or other source of power which drives a bevel gear which is keyed to a shaft on which is mounted a tooth gear which meshes with four gear wheels to each of which is secured a crank pin. Pivotally connected to each crank pin is a connecting rod, which in turn is pivotally connected to a jogging member which reciprocates in slots in the jogging table. The cranks are so arranged relative to one another that two opposite jogging members move together simultaneously and alternately with the other two opposite jogging members, but the cranks could be arranged so that all the ogging members would move simultaneously.

The invention is hereinafter mrre particularly illustrated and described in the anneXed drawing in which Fig. 1 is a plan view of the jogging table;

Fig. 2 a vertical section on the line 22 in Fig. 1; and

Fig. 3 a plan view of the operating mechanism with the top of the jogging table removed.

In the drawing like numerals of reference indicate corresponding parts in the different figures.

1 represents a rectangular receiving or j ogging table which is adapted to receive printed sheets from the sheet delivering mechanism of a printing press. This sheet delivering mechanism is of well-known construction, comprising a bar having a series of fingers secured thereto and extending therefrom at right angles, these fingers being adapted to pick the sheets off the printing press roll and deposit them on the receiving table in a known manner. The fingers are numbered 2 in Fig. 2.

The fingers 2 do not deposit the sheets on the receiving table 1 in an orderly pile, and in order to align these sheets aligning or jogging members 3 are provided. These jogging members 3 are composed of a plate 4 slidable on the table 1 and having perpendicular faces 5 which are parallel to the sides of the table 1. It follows that the faces 3 of opposite jogging members are also parallel to one another and that the faces of adjacent jogging members are at right angles to one another. At the rear of each jogging or aligning member 3 is a downwardly extending lug 6 to which is secured a pin 7. Pivotally connected to said pin 7 and retained thereon by means-of a nut 8, is a connecting rod 9 which serves to reciprocate the aligning member 3 in a manner hereinafter described.

' A slot 10 is provided in the surface of the table 1 in which the lug 6 is adapted to reciprocate. At each end of each aligning member is a guide member 11 which is adapted to reciprocate in a slot 12 in the table 1. These guide members serve to retain the aligning members in their proper position relative to the table and one another.

Secured to a bracket 13 on the under side of the table 1 is a motor 14 provided on its shaft with a crown pinion 15 which meshes with a cam gear 16. The crown gear 16 is keyed to a shaft 17 and retained thereon by means of a nut 18. The shaft 17 is rotatably mounted in a supporting member 19 which is secured to the table 1 by means of bolts 20. The table itself is supported at one end in a manner not shown to the press and at its forward end is supported by legs 21, 21.

- Keyed to the shaft 17 at its upper end is a toothed drive gear 22 which meshes with four driven gears. Secured to each of these driven gears is a crank pin to which is pivoted the connecting rod 9. This connecting rod 9 is made adjustable in length by means of a slot and bolt connection 25. A-nut 26 on the upper end of the shaft 17 serves to retain the shaft and gear wheels mounted thereon in assembly. Suitable bushings or bearings are provided for the various moving parts.

The speed of the motor 1st and the arrangement of the gearing is preferably such as to cause the aligning members to reciprocate a number of times for each operation of the sheet delivering mechanism, so that one batch of sheets is fully aligned before the next batch is delivered. Y

The driven gears 23 are so adjusted relative to each other and to the drive gear 22 that when the crank pin, and the aligning member connected therewith, on two opposite sides are at their outermost position, the crank pin, and the aligning member, on the other two opposite sides are attheir innermost position, so that when the gears are put in motion opposite aligning members will move inwardly and outwardly simultaneously, while adjacent aligning members will move inwardly and outwardly alternately.

I11 other words, two opposite aligning members will be moving in at the same time as the other two opposite members are moving out, and vice versa. As explained in the preamble, this action is much more effective than the usual method whereby all the aligning members move in and out simultaneously. In Fig. 1, a sheet 27 has been shown in its aligned position.

It will be understood that there may be many modifications of this invention without departing from the spirit thereof. For instance, there may on each side of the aligning table be a plurality of aligning members instead of one as shown and described. Instead of the specific method of operating the jogging members shown and claimed, a' cam arrangement or a reciprocating crank may be used.

WVhile a construction might be used in which only two or three adjacent jo ging members may reciprocate, the others being stationary, or being dispensed with, much more satisfactory results can be obtained by the use of four joggers as described above, since with the four moving j oggers the sheets are less likely to fall on top of a jogging member, and the aligning is effected more rapidly and with less movement of each member.

It will also be seen that the construction shown may be readily adapted so that it will operate to reciprocate the aligning members simultaneously as is commonly done.

7 What we claim as our invention is:

1. Method of aligning superimposed rectangular sheets which consists in applying positive pressure simultaneously to each of the opposite edges of the sheets and alternately to each of the adjacent edges of the sheets.

2. In jogging mechanism. the combination of a sheet receiving table; aligning members adapted to reciprocate to and from the edges of the sheets delivered to said table; and means for alternately reciprocating aligning members at adjacent edges of the sheets and simultaneously reciprocating aligning members at opposite edges, whereby the aligning members at two opposite edges of the sheets are moved towards the sheets while the aligning members at the other two opposite edges are moved away therefrom.

3. In jogging mechanism, the combination of a sheet receiving table; aligning members adapted to engage the edges of the sheets delivered to said table, the aligning members at adjacent edges of said sheets being adapted to reciprocate to and from the edges thereof; and crank means for alternately reciprocating adjacent aligning members, whereby one of said aligning members is moved towards the sheets while the aligning member at the adjacent edge is moved away therefrom.

4. In jogging mechanism, the combination of a sheet receiving table; aligning members adapted to engage the edges of sheets delivered to said table, the aligning members on adjacent edges of said sheets being adapted to reciprocate to and from the edges thereof; a rotatable gear; a plurality of gears, each being meshed with the said gear and being provided with a crank pin; and connecting rods connecting the aligning members with said pins.

5. In jogging mechanism, the combination of a sheet receiving table; aligning members adapted to engage the edges of sheets delivered to said table, the aligning members on adjacent edges of said sheets being adapted to reciprocate to and from the edges thereof; a rotatable gear; a plurality of gears, each being meshed with the said gear and being provided with a crank pin; and connecting rods connecting the aligning members with said pins, said pins being arranged in such rela tive positions that one of said aligning members is moved towards the sheets while the adjacent aligning member is moved away therefrom.

6. In jogging mechanism, the combination of a sheet receiving table; aligning members adapted to engage the edges of sheets delivered to said table, the aligning members at adjacent edges of said sheets being adapted to reciprocate to and from the edges thereof; crank means for reciprocating the aligning members; and means including gears for rotating said crank means.

7. In jogging mechanism, the combination of a sheet receiving table; aligning members slidably mounted on said table, said aligning members at adjacent edges of the sheets being provided with faces positioned at right angles to each other; uides on said ali ning members adapted to travel in slots in the table top; a rotatable gear; a plurality of gears each being meshed with the said gear and being provided with a crank pin; and connecting rods connecting the aligning members with said pins.

8. In jogging mechanism, the combination of a sheet receiving table; aligning members slidably mounted on said table; and means for reciprocating said aligning members to and from a common center whereby opposite aligning members move in and out simultaneously and adjacent aligning members move in and out alternately.

9. In jogging mechanism, the combination of a sheet receiving table; aligning members slidably mounted on said table; geared crank wheels; crank arms pivoted to the crank pins on the crank wheels and pivoted to the aligning members; and a geared driving wheel meshing with the geared crank wheels, said driving wheel and crank wheels being ar ranged so that adjacent aligning members reciprocate alternately.

10. In jogging mechanism, the combination of a rectangular sheet receiving table;

aligning members slidably mounted thereon adjacent the front and rear end and each side of said table, said aligning members being provided with faces positioned parallel to the adjacent end or side; and means for reciprocating the front and rear jogging members in and out simultaneously in a direction at right angles to the front and rear of the table and the side jogging members in and out simultaneously and alternately With the front and rear jogging members in a direc tion at right angles to the sides of the table.

11. In jogging mechanism, the combination of a sheet receiving table; aligning members adapted to engage the edges of the sheets delivered to said table, aligning members at adjacent edges of said sheets being adapted to reciprocate to and from the edges thereof; a means for alternately reciprocating aligning members at adjacent edges of the sheets, whereby the aligning member at one edge is moved towards the sheets while the aligning member at the adjacent edge is moved away therefrom; and adjusting means for regulating the distance apart of opposite jogging members.

12. In jogging mechanism, the combination of a. sheet receiving table; aligning members adapted to engage the edges of sheets delivered to said table, the aligning members on adjacent edges of said sheet being adapted to reciprocate to and from the edges thereof; a rotatable gear; a plurality of gears, each being meshed with the said gear and being provided with a crank pin; and connecting rods connecting the aligning members with said pins, the length of said connecting rods being adjustable for regulating the distance apart of opposite aligning members.

13. A method of aligning superimposed sheets which consists in alternately apply ing positive pressure to the adjacent edges of the sheets, first in opposed parallel directions and then in opposed parallel directions at an angle to the first directions.

14. A method of aligning superimposed sheets which consists in alternately applying positive pressure to the adjacent edges of the sheets, first in opposed parallel directions and then in opposed parallel directions at right angles to the first direction.

15. A method of aligning sheets superimposed on a horizontal surface which consists in alternately applying positive pressure to the adjacent edges of the sheets, first in opposed parallel directions and then in opposed parallel directions at an angle to the first directions.

16. In ogging mechanism, the combination of a sheet receiving table; movable aligning members adapted to engage the edges of rectangular sheets; and means for actuating the aligning members to and from a common center whereby the aligning members exert a positive pressure alternately on the edges of the sheets first by engagement with oppoe site edges and then by engagement with the adjacent opposite edges.

17. In jogging mechanism, the combination of a sheet receiving table; aligning members adapted to be reciprocated to engage the edges of the sheets delivered to said table; and means including a gear wheel for alternately reciprocating aligning members at adjacent edges of the sheets and simultaneously reciprocating aligning members at 0pposite edges of the sheets to and from a common cent-re, whereby the aligning members at opposite edges are moved towards the sheets while the aligning members at the adjacent opposite edges are moved away therefrom.

18. In jogging mechanism, the combination of sheet delivering mechanism; a sheet receiving table upon which the sheet delivery mechanism is adapted to deliver sheets at intervals; aligning members adapted to be reciprocated to engage the edges of the sheets delivered to said table; and means for alternately reciprocating aligning members at adjacent edges of the sheets and simulta neously reciprocating aligning members at opposite edges of the sheets, whereby the aligning members at opposite edges are moved towards the sheets while the aligning members at the adjacent opposite edges are moved away therefrom, said reciprocating means being adapted to reciprocate each aligning member a number of times between each operation of the sheet delivery mechanism.

19. In jogging mechanism, the combination of a sheet receiving table; aligning members adapted to reciprocate to and from the edges of the sheets delivered to said table; and means for alternately reciprocating aligning members at adjacent edges of the sheets and simultaneously reciprocating aligning members at opposite edges of the sheets, said aligning members each moving relative to the others in directions to and from a common centre on lines normal to their surfaces, whereby aligning members at two opposite sides move inwardly towards the sheets while the aligning members at the other two opposite sides are moved away therefrom.

20. In jogging mechanism, the combination of a sheet receiving table; aligning members adapted to reciprocate to and from the edges of the sheets delivered to said table; and means for alternately reciprocating aligning members at adjacent edges of the sheets and simultaneously reciprocating aligning members at opposite edges of the sheets, said aligning members each moving relative to the others equal distances in directions to and from a common centre on lines normal to their surfaces, whereby aligning members at-two opposite sides move inwardly towards the sheets while the aligning members at the other two opposite Sides are moved away therefrom.

Signed at Hamilton, this 22nd day of July, 1930.

ERNEST SMITH. WILLIAM B. POWELL.

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