US1356271A

US1356271A - Veneer-slitting machine

Info

Publication number: US1356271A
Application number: US364839A
Authority: US
Inventors: James C Dozier; Joseph L Walker
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-03-10
Filing date: 1920-03-10
Publication date: 1920-10-19
Anticipated expiration: 1937-10-19

Description

J. C. DOZIER AND J. L. WALKER. VENEER SLITTING MACHINE. APPLICATION HusuMArc.4 1o, 1920.

1,356,271. Paua om. 19,1920.

3 SHEETS-SHEET I.

Invenfmc Q7. 70,2126/2 Maz/2e I J. C. DOZIER AND J. L. WALKER.

VENEER SL|TT|NG MACHINE. APPLICATION FILED MAR. Io. w29.

1,356,271. Patented oct. 19,1920.

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I; C. DDZIER AND I. L. WALKER, VENEER sumNG MAcHlNE.- APPLICATION FILED MAR. I0, 1920.

1,356,271. Patented oet. 19,1920. y

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4 V@ ff CIZ. MaI/fell UNITED STATES ,PATENT OFFICE.

JAivins c. noziER AND rosErH L. wALKnitoF BAToN ROUGE, LLOUISIANA VENEER-SLITTING MACHINE.

Specification of Letters Patent. Patented Oef. 19, 192(k) i Application led March 10, 1920. Serial No. 364,839. f

Slitting Machines, of which the following is a specification.

This invention relates to certain new and useful improvements in machines for slittin@ veneer oil thin matei'ial into stri s.

lhe present invention is designed primarily as an improvement upon the machine for this purpose which forms a subject matter of Patent No. 1,234,884@ granted to us July 31,1917. j

The construction shown in the aforementioned patent while most eflicient for the purposes for which it has been employed, has been found to be capable of improvement to meet new requirements, such for instance as dividing three-ply veneer which requires more powerful feed than can be obtained from the construction shown in the said patent. In slitting three-ply veneer it is very desirable, if not absolutely necessary, that the stock bek cut oirboth sides simultaneously.

rlhe present invention has for apprimary object the dispensationk of the bed plate or; table employed in the construction shown in the prior patent, and in so constructing and arranging the bottom yknife holder, orholders, lthat the upper end or ends thereof shall furnish all" the bed plate that is necessary to support the material against the cut ofy the upper knife or knives. This greatly simplifies the construction and enables us to econoniize space and to provide better support for the knife bars, which support serves to materially strengthen` the framing of the machine.

We aim further at the improvements in the details of construction whereby provision is made for adjusting the heads or knife holders to any width, as circumstances may ieiiire.

ther objects and advantages ofthe invention will hereinafter appearV and the novel features thereof will be-particularly pointed out in the appended claims.k

The invention, in its preferredl form, is clearly illustrated in the 'accompanying drawings, which, with the numerals of reference marked thereon form a part of this specification and in which:

Figure 1 is aside elevation of our improved veneer slitting machine.

Fig. 2 is a substantially central vertical longitudinal section through the same.

Fig. 3 is an enlarged vertical longitudinal section through the knives and their holders withl portions of the adjacent feed rolls broken away. f i

Fig. 1- is an end view of one of the knife holders and knife,V with portions broken away. f

Fig. 5 is a vertical'section through one of the knife holders showing the knife cap in position.

Fig. 6 is a rdetail in elevation with portions broken away, looking inthe direction of the line of feed of the material to be slit.

Fig. 7 is a sectionl taken 'at right angles to Fig. 5.

Fig. 8 is an end elevation with portions broken away. f

Fig. 9 is a top plan.

Like numerals of reference indicate like parts throughout the different views.

j Referring to the drawings, 1 designates abcd or base of any suitable `character supported in any desired way as by the legs or supports 2, the same being of substantial construction so as to `firmly support the opperating vparts nowto be described.

As before noted in the present construction, we employ no table or bed plate for the support ofthe material being acted upon, but in lieu thereof we support the knife holders and their accessories intermediate rthe center feed rolls and have the upper end of the bottom knife holder serve in lieu of such'table or bed plate. For this purpose we provide the castings or standards 3 which are irmly bolted or otherwise aixed to the base 1 and to the top housing 4 as clearly shown in Figs. 1 and 2.

5 are guide rods mounted inthe top housing or cap plate 4 and inthe base 1, and these rods serve to supportthe tubular bearings 6 and 7 for the upper and lower sets of feed rolls as will be clearly understood upon reference to Fig. 2. The lower bearings may be adjusted vertically by means of the 'nuts 8 having threaded engagement with the screw-threaded portions of the rods 5, as seen in Fig. 2, while adjustable on the upper threaded portions of these rods are the j nuts 9, see Figs. 1 and 2, between which and shoulders 10 on the tubular bearings are springs 11, as shown in Figs. 1 and 2, it being readily understood that the compressive elfort of these springs -Inay be regulated or adjusted by means of said nuts as circumstances may require.

Journaledinthe upper and lower| bearings 6 and 7 are

shafts

12 and 13, respectively, see Fig. 2, and each of these shafts carries a feed roller, the rollers 14and 15 constituting the upper feed rolls, and the rollers and 1T constituting the lower feed rolls, it beingnoted that-there are two pairs of such feed rolls upon opposite sides of the central vertical line of the machine,vso that there will `be four rollers upon each side ,of the point where the knives are located.

rThese feed rollers may be actuated in any suitable way, this construction not forming apart .of the present invention although we have shown a convenient way of .imparting motion to these feed rolls. Such arrangement is shown in Figs. 1, 2, 8 and 9, wherein it will be seen that the shafts 18 and 1S) project beyond the top housing or cap plate 4 and are mounted in suitable bearings 20 on the base 1, the shaft 1S being shown as provided with a pulley 21 to be revolved from any suitable source of power, while upon the said shaft 1S is -a gear 22 meshing with a larger gear 23 on the shaft 13 and this in turn meshing with a `large gear 24 on the upper shaft 12, .see Fig. 2, while upon the shaft 19 .is a gear 25 meshing with a large gear 26.011 the shaft 13 of the other set of feed rolls and these in turn meshing with a gear 27 on the upper shaft 12 of one of the feed rolls.

At the other end-.of the machine similar gearing is provided, as seen in Figs. 1, 8

`and 9, wherein 28 is a gear .on the shaft A1S .meshing with the gear 29 on the shaft 13 of the lower roll, which, in turn meshes with the gear 30 on the shaft 12 of the upper .feed roll. The shaft 19 carries a gear 31 .meshing with a gear 32 on the shaft 13V ofthe lower roll and this in turn is in mesh with a gcar on the shaft 12 of one of the upper -feed rolls.

The

shafts

18 and 19 carry the sprocket wheels34 and 35,y respectively, as seen best in F 1, and around these passes Athe sprocket chain 36 as seen in Figs. 1 and 9, whereby motion is simultaneously imparted to the two sets of ,upper and lower feed rolls. 1t is evident, however, that any other suitable formfof gearing may be employed for imparting the desiredmotion to the feed rolls.

Itis to be ,understood `that the invention is in noV wise restricted toythe number of knives employed, the number depending upon the character of the work and the size or desired capacity of the machine. rfhe construction, disposition and arrangement of the knives being the same, a detailed description of one set, upper and lower, is deemed suiicient.

' Referring to Figs. 2 and 3, 37 is the upper knife bar and 38 the lower knife bar. These are secured to the castings or standards 3 in any suitable manner as by bolts or the like 39, itbeing noted that these knife bars or heads are supported in opposition to each other, leaving a space 40-therebetween, as seen best in Fig. 3, for the passage of the stock or material 41 to be slitted by the knives, and the upper face 42 ofthe lower knife bar constituting a rest or support for thematerial in its passage through the machine, as will be clearly understood by reference to Figs. 2 and 3, so that the material `is supported against the cut of the upper knife or knives during its passage through the machine.

43 is the upper knife holder and 44 thc lower knife holder. These knife holders have dovetailed engagements as at 45 with the knife heads or bars, as seen clearly in Figs. 2,and 3, the upper end of the upper holder havingtheprojecting lug 46 and the lower holder having the projecting lug 47 forthe reception of screws or `the like 4S, as seen clearly in Fig. 3, thus permitting the knifeholders yto be adjustedlengthwisc of theknife barsfand held insuch adjusted ,position by means of the set screws or the like 4S.

49 istheupper slitting knife and 50`is the lower slitting knife. Each knife-.is provided with a longitudinal slot 51 for the reception of a bolt 52 provided with a nut thus .permitting vertical adjustment of the knife.

54 isa knife cap bearing against the knife and against whichthe nut 'bears, it being understood that the bolt 52 passes through said capas will be readily7 seen-upon reference to Fig. 7. It will be evident that provision `is thus made for the adjustment of the knives to and from each other as circumstances may require. Upon reference to Fig. 3 it will also be observed that the upper `and lower knives are disposed in angular position with relation to each other instead of being disposed substantially vertically, rin ordei1 to give better results and a cleaner cut to thematerial.

It Aisthought that the operationof the machine will be readily understood from the foregoing and that a further-detailed description thereof is not necessary. Fig. 3 illustrates the passage of the material through the machine the same being supported upon the -upper face of the lower knife bar and the material being firmly gripped and reliably fed through the machine by means of the two sets of upper and lower feed rolls,

Modifications in detail, proportions and relative arrangement of parts may be resorted to without departing from the spirit of the invention or sacrificing any .of its advantages.

that is claimed as new is:

l. In a veneer slitting machine, a supporting frame, feed mechanism, upper and lower slitting means and upper and lower slitter-carrying means supported in opposition to each other with a space therebetween for the passage of the material to be slitted, the upper face of the said last-named means constituting the only support for the material in its passage between the upper' and lower slitting means.

2. In a veneer slitting machine, a supporting frame, feed mechanism, upper and lower slitting means and upper and lower slitter-carrying means supported in opposition to each other with a space therebetween for the passage of the material to be slitted, the upper face of the said last-named mea-.ns constituting the only support for the material in its passage between the upper and lower slitting means, said slitting means being angularly adjustable to and -from each other.

3. In a veneer slitting machine, a support, feed mechanism, independent, spacedapart upper and lower slitting means, the lower head thereof constituting the only supper". for the material against the cut of the upper slitter and forming a guide for such material.

4. In a veneer slitting machine, a base, a top housing, uprights connecting the same and upper and lower slitting knives and knife-bars connecting and supported from said uprights, the upper face of the lower knife-bar forming the only support for the material as it is slitted by the said slitting knives. p

5. In a veneer slitting machine, a support, upper and lower slitting knives, feed rollers upon opposite sides of said knives, the upper end of the lower knife head forming the only support for the strip of material passed between said knives against the cut of the upper knife.

G. In a veneer slitting machine, a support, independent spaced-apart upper and lower slitting knives, and feed rollers in multiple upon opposite sides of said knives, the upper end of the lower knife head serving as the only support for the material against the cut of the upper knife.

7. In a veneer slitting machine, a support, upper and lower slitting knives, and feed rollers in multiple upon opposite sides of said knives, the upper end of the lower knife head serving as a bed plate to support the material against the cut of the upper knife, said yupper and lower knives being adjustable vertically and transversely.

8. In a veneer slitting machine, a support, upper and lower slitting knives, and feed rollers in multiple upon opposite sides of said knives, .the upper end of the lower knife head serving as a bed plate to support the material against the cut of the upper knife, said upper and lower knives being adjustable vertically and transversely independently of each other.

9. YIn a veneer slitting machine, a frame embodying standards, knife heads extended transversely of the frame and connecting said standards, and upper and lower slitting members carried by said heads and disposed substantially vertically to act upon opposite faces of the material, the upper end of the lower knife head forming a bed plate for the support of the material to be slitted.

1.0. In a veneer slitting machine, a frame embodying standards, knife heads extended transversely of the frame and connecting said standards, upper and -lower slitting members carried by said heads and disposed substantially vertically to act upon opposite 'fa-Ces of the material, the upper end of the lower knife head forming a bed plate for the support of the material to be slitted, and feed rollers upon opposite sides of the knives, the said bed plate being the only support for the material between the rollers.

l1. In a veneer slitting machine, a frame embodying standards, members joining the opposed standards and bracing the same, upper and lower knives disposed substantially vertically and disposed in angular position with relation to each other, the upper end of the lower knife support constituting the only bed plate for the support of the material while it is being slitted.

In testimony whereof we ailix our signa tures.

JAMES C. DOZIER. JOSEPH L. YVALKER.