US1692815A

US1692815A - Slitting means

Info

Publication number: US1692815A
Application number: US220870A
Authority: US
Inventors: James A Cameron
Original assignee: Cameron Machine Co
Current assignee: Cameron Machine Co
Priority date: 1927-09-21
Filing date: 1927-09-21
Publication date: 1928-11-27
Anticipated expiration: 1945-11-27

Description

Nov. 27, 1928. 1,692,815

J. A. CAMERON SLTTING MEANS Filed Sept. 21, 1927 5 Sheets-Sheet l A TTORNE Y NV NTOR jm w m. um Q Nov. 27, 1928.

J. A. CAMERON SLITTING MEANS Fild sept. 21, 1927 :5 sheets-sheet 2 INVENTOR @da WWW 1 ATTORNEY Nov. 27, 1928. J. A. CAMERON SLITTING MEANS Filed sept. 21, 192'? 5 Sheets-sheet 5 IN VENT OR m ATTORNEY Patented Nov. 271928.

1,692,816 PATENT orales.

UNITED STATES JAMES A... CAMERON, 0F BROOKLYN, NEW YORK, ASSIGNOR TO CAMERON MACHINE COMPANY, OF BROOKLYN, NEW 'YORK, A CORPORATION OF NEW YORK.

SLITTING' Application led September 2 1, 1927. Serial No. 220 870.

This invention relates to slitting means and particularly of the type known as overlapping.

shear-cut slitting means, and has for its main obJect and feature maintaining the shears in overlapping relation notwithstanding whipping7 of the shaft or shafts carrying the slitting elements.

In the accompanying drawings the invention is disclosed in several concrete and preferred forms iin which Fig. 1 is a View, partly in elevation and partly in section, of a slitting device embodyinv one form of the invention.

4 igs. 2, 3 and. 4 are views similar to lFig. 1 embodying modified forms of the invention.

Fig.7 5 is a transverse :sectional view particularly of Fig. 4.- but may be considered as illustrating a transverse section of any of lthe constructions shown in Figs. 1 to 4 inelusive.

Fig. 6 is a detail sectional view of a flexible coupling means that may be employed in connection with the invention.

Fig. 7 is a View similar to Figs. 1 to 4 inclusive but showing a still further modified form of the invention. Fig. 8 is a detail sectional view substantially on the plane of line 8-8of Fig. 7.

Fig. 9 is a detail sectional view substantially in the plane of line 9--9 of Fig. 7.

1 and 2 indicate two shear-cut members in overlapping relation said members consisting of a set of overlapping shears of a well-known type, and in machines of this type it is custom'- ary to provide a plurality of such sets of shears t0 slit a web of fiexible material lengthwise. One of the members, as 1, of each set of shears is usually mounted on a driven shaft, the other shear members, as 2, being usually held in spring-pressed relation sidewise againstk members 1 and frictionally driven thereby.

Webs of paper are now being made in very wide widths and as a consequence the shaftwhich supports members 1 must be of relatively great length. I find that it is diflicult to obtain dynamic balance of said shaft and that therefore-such shaft has a whipping action, that is to say: it tends to flex and does not run true. The result is that the shear-cut members of the different sets at times become disengaged out of their overlapping relation and, when they attempt to return into engagement, one member will frequently ride on top of another instead of being in overlapping relation. This will destroy the cutting edge of a member, as 2, and will also tend to cut the paper unevenly.

To overcome this difficulty I provide a sectionalized shaft for member 1 and provide a coupling means between the shaft sections that will allow a certain amount of misalinement of said sections without permitting the members of the set of shears to move out of overlapped relation. l

In accordance with this, 3a and 3b indicate two shaft sections arranged and sustained` end to end. In the case shown in Fig. 1 such shaft sections, which constitute a set, are supported by end bearings 4 and a center bearing 5. These shaft sections are connected by flexible coupling means, as 6, which latter is preferably a coupling known commercial] as Kanti-lever coupling, and disclosed in at- @nts Nos. 1,326,366 1,455,425 and. 1,574,466. Power maybe applied to the shaft sections by means of a` pulley 7, or otherwise, and coupling 6 serves to transmit the power from one shaft .section to another without transferring the Whi ping tendency. In order to adapt the mac ine to cut web sections of different widths the shear cut'memloersl are adjustable in a manner well understood and center bearing 5vis slidably mounted on a bracket as 8, the adjustment of bearing 5 being effected by means of handwheel 9,

gears

10 and 11 and threaded stem 12. The shaft sections and coupling means can therefore be adjusted lengthwise in unison.

It will now be understood that the fiexible coupling means transmits powerA from one shaft section to the other and while tending to oppose the whipping action of the shaft sections, nevertheless allows a certain amount of misalinement thereof without, however, permitting the other members of -a set to become disenga ed. In consequence of this the machine may e run at a very hi h speed and may be used in connection wit very wide webs. f

In Fig. 2 there are three shaft sections, 3*, 3b and 3, two

flexible couplings

6 and 6"I and two

center bearings

5 and 5. y

In Fig. 3 there are two shaft sections 3 and 3b, two center bearings 5`and 5a and one flexible coupling 6. '1

In Fig. 4 the arrangement is the same as in Fig. 1, but here center bearing 5 is not adjustabl In certain types of machines of this character both members of the shear-cut slitters are mounted on driven shafts and the invention canlikewise be applied to this type of machine. In the exempliication shown in Figs. 7, 8 and 9 there are t-wo sets of 'shaft sections, one 30a, 30 and the other 30()a and 300". As there' shown the sections of the same set are connected by flexible coupling means 6 and a plurality of sets of shear

cut slitting members

1 and 2 are employed in overlapping relation. In this form of the invention the two sets of shaftsections may be intergcared as by means of

gears

70 and 700, power being derived, as before, from a pulley 7. One geared set of shaft sections may also be adjustable toward and away from the other and it will be noted that

endand center bearings

4 and 5 are connected together by beam 15 and that bearingsl are adjustllile in guides 16 by means of screws 17.

` center bearings 5 of both sets of shaft sections are adjustable lengthwise, one on beam 15 by means of bolts 16 and the other on rod 17 by means of bolt 18.

I claim:

1. The combination with slitting means consisting of a plurality of sets of overlapping shears, of a plurality of shaft sections arranged and sustained end to end to support one of the members of each set of shears,

disengagement of the mem.

bers of the sets of shears from overlapping relation.

2. The lcombination with slitting means consisting ot a plurality of sets of overlapping shears, of a plurality of shaft sections arranged and sustained endto end to support one of the members of each set of shears, ieXible coupling means between the shaft sections to admit of misalinement of said sections but not of disengagement. of the members. of the sets of shears from overlapping relation, and means to adjust the shaft sections and coupling means lengthwise in unison.

- 3. The combination with slitting means consisting of a plurality of sets of overlapping shears, of two sets of shaft sections, each set of sections arranged and sustained end to end to support one of the members of each set of shears. and flexible coupling means between the shaft' sections of each set to admit to misalinementof the sections of eachv set but not of disengagement. of the members of the sets of shears from overlapping relation. Signed at the borough of Brooklyn, in the county of Kings. city and State of New York. this 14th, day of Sept., 1927.

` JAMES A. CAMERON.