US1739088A - Machine for gluing veneer edges - Google Patents

Description

M. W. PERRY MACHINE FOR GLUIiIG VENEER EDGES Filed April 1926 2 Sheets-Sheet l N5] 1 717 VIZ/ W Filed April 9, 1926- v 2 Sheets-Sheet 2 Fatented Dec. 10, 1929 i 1 UNITED STATES PATENT OFFICE MELVIN W. PERRY, F ALGOMA, WISCONSIN MACHINE FOR GLUING VENEER, EDGES Application filed April 9, 1926. Serial No. 100,842.

This invention relates to machines for vided with a recessed portion 5 which carries gluing the edges of veneer or other thin glue and a very thin disc-like roller 6 is lumber. In gluing the edges of veneer or positioned partly in this recessso that it runs other thin lumber of this type, it has been in the glue and lifts suchglue upwardly and 5 the practice heretofore to hold the strips evenly rubs it over the juxtaposed edges 'Of of veneer together by means of adhesive tape the veneer. A pair of lower rollers 7 are or adhesive strips of paper until the joint positioned behind the gluing disc 6 and their dried. The strips had to be removed thereupper faces are approximately flush with the after, and in addition to this, it was a reltable top. These rollers cooperate with a 1 atively difficult and slow process. similar pair of upper rollers 8 as indicated This invention is designed to overcome the in Figure 1. The rollers 7 and 8 are set with above noted defects, and objects of such intheir axes at an angle so that they draw the vention are to provide a machine for gluing sheets towards each other and force their the edges of veneer or other thin sheets of edges tightly together, such edges being pre- 15 lumber and passing them continuously viously coated with glue by the disc 6. The 5 through the machine and completely drylower rollers 7 are carried by the table 2 while ing and hardening the joint prior to disthe upper rollers 8 are carried by a frame 9 charge from the machine so that when the to be hereinafter described in greater detail. sheets are discharged from the machine, the Referring to Figures 1 and 4, it will be seen an joint is dried and finished. that a lower heating hollow block 10 and a Further objects are to provide a machine similar upper block 11 are provided. These which is of very simpleconstruction for acheating members may be heated by any suitcomplishing the above results, and which may able means, for example, by means of steam be easily used even by an unskilled operator supplied by pipes, such as indicated at 12 and 25 to secure a uniform and reliable joint 13 respectively, the steam being led from the throughout the entire edge of the veneer heating members by means of pipes 14: and 15, sheets, and to provide a machine which may although, of course, the point of entry and continuously operate to pass one set of sheets exit of the steam may be varied. The heat of veneer therethrough after another. ing members may also be heated by other 0 An embodiment of the invention is shown means than steam. in the accompanying drawings, in which The rear end of the stationary heating Figure l is a side elevation of-the machine. member 10 is carried by a standard 16, and Figure" 2 is a fragmentary plan view the forward end is carried by a bracket 17 thereof. bolted to the standard 1 as shown most clear- 35 Figure 3 is a plan View on the line 33 of ly in Figure 1. The upper member His igure 1. 1 movable to a slight extent and is provided Figure 4 is an enlarged transverse section with yokes or shoes 18 which are carried by on the line 4-4 of Figure l. rods 19. These rods 19 slidably pass through Figure 5 is an enlarged and exaggerated a supporting bar 20' as shown in Figure 1 and 4e view of an end roller with the corresponding preferably are threaded at their upper ends belt pulley in .action. and provided with nuts 20 to limit the down- Referring to the drawings, it will be seen ward motion of the block 11, springs 21 that the machine comprises a standard ,1 surrounding the rods 19, and force the upper which carries a table 2 upon which the sheets heating member 11 downwardly. The rear 45 3 of veneer are placed as indicated in dotted end of the upper heating member is provided lines in Figure 3. This table is provided with'a bracket 22, and the forward and rear with a setting up gauge or thin strip of metal ends of the lower member 10 are provided 4 which projects upwardly centrally of the with brackets 23 and 24. Between the forward table and forms a stop against which the edges brackets 22 I and 24 forward feeding rollers 50 to be glued are pressed. The table is pro- 25 and 26 are positioned, and are driven in any suitable manner, as by means of the sprocket wheels and chains illustrated. The bracket 23 at the rear of the movable member 10 is similarly provided with a roller 27,

and the bracket 9, previously described, is.

y it is preferable to provide the belts with small s urs 31 which may be formed by means of means of these be rivets whose inner ends are countersunk within the inner lower faces of the belts as illustrated in Figure 5. These belts may be made smooth, if desired.

In using the machine the heating members I 10 and 11 are heated and transmit their heat to the metal belts which contact with such members throughout the extensive stretches. These belts, therefore, are maintained in a hot condition at all times during the operation of the machine- They are adapted to travel slowly around the heating niembers.

The operator places a pair of veneer sheets as indicated at 3 in Figure 1 uponthe table 2 and slides theminto contact with the gauging strip 4. Thereafter, he slides these strips .rearwardly across-the table and their edges contact with the glue disc 6, and are thus thoroughly coated with glue. These strips pass'between the slanting rollers 7 and 8, the roller 7 being preferably driven as indicated. These rollers force the juxtaposed edges tightly to ether. The strips pass rearwar ly between t e heated metal belts 29 and 30 and are slowly fed between the heating memhers-10 and 11. The upper and lower planes of the veneer strips are held in. ali 'ent by ts and the glue edges are further dried during their passage between anew joint.

- the heating members so that when the strips are discharged from the rear end of the ma. chine they are completely glued and finished. Obviously, the operator immediately places when t e first'painhas advanced a sufiicient distance, and consequentl the machine op-- erates continuously to g no the successive .veneer sheets.

This machine, therefore, avoids all ofthe delay and inconvenience of the former process, and also insures a uniform. and perfect Further, it is to be seen thatthe machine operated even by. an unskilled t workman, an at the quality of the joint will not vary, but will have uniform chare acteristics.

. It will be seen further that the machine is of very simple construction and is also practical. i x I $811 of sheets of veneer upon' the table the glued edges of the veneer sheets and means for driving said belts.

- 2. A machine for gluing the edges of veneer sheets. comprising a table adapted to receive such sheets, a gluing disc extending upwardly between the veneer strips and adapted to operate upon the juxtaposed edges of the sheets by having opposite flat faces ofthe disc contacting with the said juxtaposed edges, and continuously traveling heated belts adapted to receive the glued oint and to dry such joint as the belts pass the sheets through the machine. I

3. .A machine for gluin the edges of veneer sheets comprising a tab e, a gauging strip against which the edges to be glued may be pressed, 9. gluing disc in alignment with such strip and adapted to s read glue over said edges, angularly set ro lers for forcing the edges into contact with each other, a air of elongated heating units positione rearwardly, of such table, metal belts slidably passm therewithand heated thereby, and adapte to receive the glued edges of the veneer sheets,

eonsln.

. MELVIN W. PERRY.

between such units and contacting-

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