US1979156A - Apparatus for making shaped articles - Google Patents

Description

Oct. 30, 1934; Q J HETTEL 1,979,156

APPARATUS FOR MAKING SHAPED ARTICLES Filed Oct. 22. 1931 3 Sheets-Sheet l INVENTOR. CL/PPofiod/fs'rnm.

A TTORNEYS Oct. 30, 1934. c J. HETTEL 1,979,156

APPARATUS FOR MAKING SHAPED ARTICLES Filed 001:. 22. 1951 3 Sheets-Sheet 2 INVENTOR.

CL/F'F'O/PD (L/IZTTE'L.

A TTORNEYS,

Oct. 30, 1934.

c. J. HETTEL 1,979,156

APPARATUS FOR MAKING SHAPED ARTICLES Filed Oct. 22. 1931 3 Sheets-Sheet 3 INVENTOR. Cur/ om; Mz'rru.

BYWYW ATTORNEYS Patented Oct. 30, I934 PATENT OFFICE APPARATUS FOR MAKING SHAPED ARTICLES Clifford J. Hettel, River Rouge, Mich, assignor to Detroit Wax Paper Company, Detroit, Mich, a corporation of Michigan 1 Application October 22, 1931, Serial No. 570,412

4 Claims.

, paper, which result is due to'the cutting of the wax paper into suitable sizes, and which waste comprises of small pieces which may be either relatively large or small, or in strip form. The invention contemplates utilizing this waste mal5 terial and making articles therefrom by subjecting a quantity of the wax paper to pressure, at which time the article may be given its final commercial shape. While the invention is particularly useful for utilizing wax paper Waste it is not limited to using only wax paper waste, as

the invention contemplates and may be employed connection with other paper or fibrous material.

In the accompanying drawings:

7 Fig. 1, is a view of an apparatus such as may be employed for the purpose of carrying out the invention, the view showing some parts cut away to illustrate some of the detailed construction. r

. Fig; 2is a viewlooking from the left hand side of Fig. 1 illustrating 'a press or forming device with some parts in section. Fig. 3 man enlarged sectional view illustrating 'thearticle-forming mechanism. i

Fig. 4 is an enlarged view with some parts in section illustrating the arrangement of the apparatus whichmay be employed.

Fig. 5 is a side view of an article which-may be made in accordance with the invention.

Fig. 6 is aperspective view thereof showing some parts in section. 1 The particular article of manufacture herein shown is a bearing plug or spool like device useful for plugging the ends of a roll of paper and I 5 which may be provided with a central aperture "for fitting over a spindle or the like so as to form a bearing upon which the roll of paper may turn as the paper is drawn therefrom. Other articles of manufacture may be made in accord- HF ance with the invention but this particular is reciprocated by means of a crank 29.

duit 2 for discharging into the hopper quantities of waste wax paper. Mounted within the hopper for rotation is an agitator which may be secured to the shaft 3, having radially extending arms 4 and 5 and equipped with paddles 6. Advantageously, there are four arms and four paddles. This agitator is rotated, and for this purpose the shaft 3 may have on one end a worm gear 7 with which meshes a worm 8 rotated by a pulley 9. The pulley 9 is connected by a belt 10 to a pulley 11 for rotation with the operation of the press or forming device. This is merely one way of rotating the agitator.

By referring to Fig. 4 it will be noted that at the bottom of hopper 1' there is a tubular like member 15 which is open at its top inside of the hopper and which projects from the hopper as shown. Positioned in the tubular member 15 is a feeding screw comprising a shaft 16 carrying a feeding screw formation 1'7. The shaft 16 at one end projects from the hopper, and secured thereto as by means of a key is a driven clutch member 18. A driving clutch member 19, which may be in the form of a pulley driven by belt 20 running over the pulley of the motor 21, is journaled on a spindle 22 which may be carried by the end of the member 16 so that the member 19 may rotate independently of the driven member of the clutch 18 and the feed screw. A coil spring 23 is arranged to normally urge the feed screw from right to left for which purpose it backs up against an abutment 24 which may be carried by the end of member 16 and reacts upon the feed screw through the means of an adjusting nut 24 and lock nut 25 screw threaded upon the shaft 16. This spring holds the clutch members packed together so that the part 19 drives the part 18. The clutch may be of friction type for which purpose one member may be provided with friction facing material. As shown, driving part 19 has friction facing material 19a.

The end of the tube 15 remote from the hopper communicates into a fixture, which in the present instance, takes the form of a fitting of T shape, as shown at 26. This T fixture underlies a plunger 27 of a suitable press. The frame of the press is illustrated at 28 and the plunger This crank is on shaft 30 rotated by gear wheel 31 meshing with gear 32 on drive shaft 33 which may be driven by a suitable belt running over a pulley 34. Pulley 35 may be an idler pulley upon which the belt may be shifted, while a flywheel is shown at 36. The plunger 2'? is carried jecting from opposite sides of the stripper are studs 45 and 46 which extend through the walls of the die 41, the walls having elongated openings 4'7 for this purpose. Mounted upon the bed plate on opposite sides of the die are inclined plane members which-may be in the form of angle irons as shown in Fig. 3. These members are shown at 50 and51. respectively, and each has an inclined surface 52 designed to cooperate with the studs 45 and 46.

Carried by the frame of the press is an arm 53 plvotally connected with the frame, as at 54, and connected to slide 42 by means of a link'55. A cam slot 56 is in the arm, and the ram 37 carries a bracket 5'7 upon which is a roller 58 operating in the cam slot. As the ram reciprocates the roller and cam slot engagement causes the arm 53 to rock, and in turn to reciprocate the slide and die 'upon the work bed of the press. A chute 59 is located in close proximity to the work bed of the press, and finished articles are designed to slide down this chute where they may be collected in a suitable receptacle, as at 60. The die member 41 has an extension 48 in the form of a little table, the purpose of which will presently appear.

In the operation of the device the waste paper products are maintained in the hopper by entering through the conduit 2, and theagit'ator 6 keeps the waste products agitated and tendsto fill the tube of the screw feed member at the bottom of the hopper. The screw feeds the material out through the tube 15 into the fixture 26. This condition may exist when the parts are in the'posit'ion substantially represented in Fig. 4 and'the waste paper products are packed into the fixture 26 bythe screw .until thepr'e'ssure is sufiicient to shift the screw from left to right against thespring 23. This separates the driven member of the clutch 18 from the driving member of the clutch 19 and the rotation of the screw ceases. As shown in Fig. 4, the clutch has been released and the paper products are packed into the fixture 26 and compacted therein against the extension or table 48. As the punch descends into the fixture 26 the die moves in underneath the fixture 26 to the position shown in Fig. 1, whereuponthe waste paper compacted in the fixture is compressed as shown in-Fig. 2. The die moves in by the action of the roller 58 in the cam slot 60. As the'punch raises this same action causes the die to move out from underneath the fixture 26 from the position shown in Fig. 1 to substantially the position shown in Fig. 4. During this time the studs 45 and 46 ride up the inclined faces 52 so as to raise the stripper 44. Thisejects the finished product, as shown in Fig. 4. When the ram again descends the finished product, which has been ejected, is merely knocked offof its position as the die moves in underneath the fixture 26 and falls'down the operation, and then its operation continues withsaid die being shiftable into alignment with out attention, the only thing necessary being the maintaining of the hopper with the quantity of material therein. Preferably the speed of the agitator 6 is such as to insure that suflicient material is agitated and caused to move into engagement with the screwfeed so that enough material is fed to compact the same into the fixture 26 upon each cycle of operation.

For making an article of manufacture which hollow, as shown herein, the punch 27 may be hollow so that excess material may enter the same and maypass out through an aperture 28. As the hollow punch moves down into the die in compressing the material, the core 4'7 is received in the hollow punch as shown in Fig.

the roll of paper may be rotated as 'pieces'are drawn therefrom. s

The waste'paper particles which are used may be ground up into relatively fine form especially where the waste products are relatively large pieces. The forming of the articles may be under sufficient pressure sothat the compressed material retains its shape in compressedform without utilizing a binding. However, it is with:-

in the invention to employ a binder, and binders which may be cited are silicate of soda, or a binder of asphalt or phaltum base.

I claim:" 1. An apparatus for making articles from a material having an aspieces of .wax paper or the like comprising, a

plunger, a die for receiving and'shapin'g the wax paper by pressure of the plunger, means for reciprocating the plunger, means operating in timed relation withthe plunger for reciprocating the die in a path at right angles to. the

said fixture, and means carried-by the d'ie'for closing said open side'of the -fixture when said die is in disalignment withthe fixture, a stripper in the die, means for moving the stripper relative to the die as said die moves out of alignment to said fixture. A

2. An apparatus for making shaped articles from particles of wax paper material comprising, a hopper for the material, a tubular conveyor projecting from the hopper, a feed screw for passing the material; through the. tubular conveyor, a hollow fixture on the 'endof the tubular conveyor having opposed openings which open in a direction at right angles 13017118 tubular conveyor, said feed screw being adapted to feed the material into the fixture under pressure and with substantiallycontinuous action,

a plunger fitted into one o'peningof the fixture,

means for reciprocating the same, a single die movable into and out of alignment .with the other opening of the fixture to receive andishape the material under pressure of the plunger and a stripper efiective for ejecting the shaped ma- 'terial from the die when'the same ;-is out o alignment with the fixture.

3. An apparatus for making shaped articles from particles of wax paper material comprising, a hopper for the material, a tubular conveyor projecting from the hopper, a feed screw for passing the material through the tubular conveyor, a hollow fixture on the end of the tubular conveyor having opposed openings which open in a direction at right angles to the tubular conveyor, said feed screw being adapted to feed the material into the fixture under pressure with substantially continuous action, a plunger fitted into one opening of the fixture, means for reciprocating the same, a die member positioned in alignment with the other opening of the fixture upon movement of the plunger into the fixture and adapted to receive and shape the ma- ,terial under pressure, means for reciprocating the die member into and out of alignment with the fixture, means carried by the die member for covering the opening of the fixture whereby shaped material may be removed from the die member when it is out of alignment with the fixture and when the same is out of alignment therewith whereby the fixture remains substantially closed at all times.

4. An apparatus for making shaped articles from particles of wax paper material comprising, a hopper for the material, a tubular conveyor projecting from the hopper, a feed screw for passing the material through the tubular conveyor, a hollow fixture on the end of the tubular conveyor having opposed openings which open in a direction at right angles to the tubular conveyor, said feed screw being adapted to feed the material into the fixture under pressure, a plunger fitted into one opening of the fixture, means for reciprocating the same, a die member positioned in alignment with said other opening of the fixture upon movement of the plunger into the fixture and adapted to receive and shape the material under pressure of the plunger, means for reciprocating the die member into and out of alignment with the fixture, means carried by the die member for covering the opening of the fixture when the die is out of alignment with the fixture whereby the fixture remains substantially closed at all times, a stripper and means operating the stripper incident to movement of the die out of alignment with the fixture for ejecting a shaped article from the die.

CLIFFORD J. HETTEL.

CERTIFICATE or CORRECTION.

Patent No. 1,979,156. October 30, 1934.

CLIFFORD J. HETTEL.

It" is herehy certified that errorappears in the printed specification of the above numbered patent requiring correction as follows: Page 3, lines 19, 20, 21 and 22, claim 3, strike out the words "whereby shaped material may be removed from the die member when it is out of alignment with the fixture and" and insert the same after "fixture," in line 18, of said claim; and that the said Letters Patent should be read with this correction therein that the same may conlorm to the record of the case in the Patent Office. Signed and i'eal'ed this 5th day of February, A. D. 1935.

Leslie Frazer (Seal) Y Acting Commissioner of Patents.

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