US2663053A

US2663053A - Rectilinear combing machine for working textile fibers, founded on the heilmann principle

Info

Publication number: US2663053A
Application number: US157047A
Authority: US
Inventors: Schleifer Carlo
Original assignee: Individual
Current assignee: Individual
Priority date: 1949-04-28
Filing date: 1950-04-20
Publication date: 1953-12-22
Anticipated expiration: 1970-12-22

Description

Dec. 22,- 1953 c. SCHLEIFER 2,663,053

RECTILINEAR COMBING MACHINE FOR WORKING TEXTILE FIBERS, FOUNDED on THE HEILMANN PRINCIPLE Filed April 20, 1950 5 Sheets-Sheet l FIG.2

FIG.1-

Dec. 22, 1953 c. SCHLEIFER 2,663,053

' RECTILINEAR COMBING MACHINE FOR WORKING TEXTILE FIBERS, FOUNDED ON THE HEILMANN PRINCIPLE' Filed April 20,1950 5 Sheets-Sheet 2 .Fic.3

Dec. 22, 1953 0. SCHLEIFER 2,663,053

RECTILINEAR COMBING MACHINE FOR WORKING TEXTILE FIBERS, FOUNDED ON THE HEILMANN PRINCIPLE Filed April 20, 1950 5Sheets-Sheet 3 Dec. 22, 1953 c. SCHLEIFER 2,663,053

RECTILINEAR COMBING MACHINE FOR WORKING TEXTILE FIBERS, FOUNDED ON THE HEILMANN PRINCIPLE Filed April 20, 1950 5 Sheets-Sheet 4 FIG. 5

Dec. 22, 1953 c. SCHLEHFER 2,$63,@53

RECTILINEAR CQMBING MACHINE FOR WORKING TEXTILE FIBERS, FOUNDED ON THE HEILMANN PRINCIPLE Filed April 20, 1950 5 Sheets-Sheet 5 FIG.5

Patented Dec. 22, 1953 1 UNITED STATES PATENT OFFICE RECTILINEAR COMBING MACHINE FOR WORKING TEXTILE FIBERS, FOUNDED ON THE HEILMANN PRINCIPLE Carlo Schleifer, Milan, Italy Application April 2i), 1950, Serial'No. 157,047 Claimspriority, application Italy-April 28, 1949 It is the object of the present invention to provide a rectilinear combing machine with nippets and a pen dul'armovement of the carriage carrying the nippers guided by a kinematic couplingestablished between said carriage and the framing of the-machine, characterized in that said coupling obliges the nippers to follow a path along a mixed line profile, which during the periodin which the closed nippers are presented tothe round comb,.coincides with an arc of a circle having its centre on the axis of the circular comb, whilst during the period in which the nippers open and remain open, it consists of a line the points of which are at a distancelarger than the 'radius of said are from said centre.

feature provides for an appreciable reduction in the amplitude of the angle corresponding to the stroke of the carriage carrying the nippers, as compared with known rectilinear combing machines. fl H Other features and advantages of the present invention are setforth in the following description' with reference to the accompanying draw ings, wherein:

' 'Fig. 1 represents a diagram of one first form of embodiment of the combing machine in the position with nippers closed;

Fig. 2 represents a detail of the combing machi'ne'of Fig. 1;

' Fig. 3 represents the same combing machine in*the position with nippers open;

Figures4 and 5 represent a second form of embodiment of the combing machine according to the invention, respectively in the positions with nippers closed and with nippers open;

' Fig. 6 represents in plan a combing machine according to the invention, with two combing heads.

In the Figs. 1, 2, 3, reference numeral I designates the carriage carrying the nippers, which is articulated, about a pin having an end 2, to a control lever 3 swinging about a fixed pin 4. The carriage carrying the nippers is terminated at its opposed end by a guide (slide) having a mixed line profile 5 bearing on a roller 6 rotatable about a fixed pin 1.

Above said guide, the carriage carries the fixed lower jaw 8 of the nippers.

A rocker, the arms of which are designated by I0 and II, is oscillating about a pin 9 mounted on the same carriage. The end of arm I0 carries a projection I2 placed in front of a stop plane I3 carried by the carriage I. The upper end of the arm II is bent at right angles and constitutes one of the bearings of a helical pres- 1 3 Claims. (01. 19-116) sure spring I5, the other end of which bears against a block I! rigid with the carriage I. Two pins I 4 and I6 carried by the'bearings prevent the spring I5 from deviating laterally.

The mobile upper jaw l8 of the nippers is carried by a rocker I9, articulated about a pin '20 carried by the carriage I. At the rocker end I9 opposite the jaw I8 there is articulated about a pin 2I an articulated lever 22, carrying at its other end a pin 23. v

' About the pin 26 carried by the arm III of the bracket lever there is articulated a counterlever 25 oscillating in turn about the pin 23 slidable within a rectangular guide 24 fixed onto the framing of the machine.

The numeral 21 indicates the circular comb rotating with the shaft 28 on the-framing. The clockwise rotation of the control lever 3 imparts to the carriage I a displacement toward the right, guided by the mixed-line guide 5 sliding on the guide roller 6. The path of the end of the lower jaw of the nippers 8 assumes the shape indicated by the dash and point line 29 of Fig. 1, namely: in a first section, the path is constituted by an arc of a circle having its centre in the axis of the shaft 28, and in a second section it is constituted by an appropriate curve, such as to take the end of the jaw 8 quickly away from the circular comb 21.

The opening of the nippers is controlled by the two-lever system of the articulated lever 22 and the counter-lever 25, the common pinof which being'compelled to displace along the guide 24 fixed tothe framing, during the displacement to the rightof the carriage I, will cause rotation of the two arms 22 and 25 in the sense indicated at Fig. 3,v thus producing a rotation in a counterclockwise sense of the rocker I9, carrying the mobile jaw I8. The presence of the spring I5 imparts to the lever system 22 and 25 the necessary elasticity; said levers 22 and 25 cause the nippers to close. The system is arranged in such a manner that in the closed position of the nippers, the three pins 2|, 23 and 26 of the levers 22 and 25 come tobe aligned and the two planes of contact I2 and I3 are slightly spaced from each other, thus compressing the spring l5 and ensuring a right closing of the nippers; whilst if the planes I2 and I3 are in contact (nippers open), the spring remains in the rest position.

In Figures 4 and 5, reference numeral 30 designates the carriage carrying the nippers, which carriage is articulated about a pin with an end 3| on a control lever 32 oscillating on the pin 33 of the framing; the control lever 32 bears with the rolls 34 and 35 rotatable about the pins 35 and 3'! on a double control eccentric 38 rotat ing with its own shaft 39. The carriage 39 carrying the nippers bears at its front portion with the roll 49 rotatable about the pin 4|, upon a profiled guide 42, and carries an arm 44 fulcrumed on its own pin 43, with the lower jaw 45 of the nippers, and an arm 45 with the upper jaw 41 of the nippers. About a pin 48 fixed to the carriage 39 there is fulcrumed a bell crank lever, the arms of which are designated 49 and 59; the end of arm 49 carries a pin slidable in a double shaped guide 52 fixed to the framing. At the upper end of the arm 50 there is fulcrumed on the pin 53 the link 54 united in turn by the pin 55 to the rear end of the arm 46.

The rear end 55 of the arm 44 constitutes one of the bearings of the pressure spring 51, the other bearing of which is formed by the projection 58 provided in the carriage 39; the arm 44 is united to the carriage 30 by the rod 59 and nut 69.

Onto the shaft 39 there is fitted the driving gear 6|, which by means of the intermediary 62 rotatable about the pin 63 controls the driven gear 64 rigid with the shaft 55 of the circular comb 66. Reference numerals 6'! and 58 designate the fluted drawing rollers and 69 designates the leather sleeve interposed between them.

The double eccentric 3B rotating in clockwise direction imparts by means of the rocking lever 32 a reciprocating motion to the carriage 39, which bears with the roll on the shaped guide 42, thus compelling the front end of the lower jaw of the nippers, rigid with the arm 44, which is united to the carriage by the spring 51, the rod 59 and nut 60, to follow the path 10 indicated with dash and point lines; this path is constituted in a first section by an arc of a circle having its centre on the axis of the shaft 65, and in a second section by an appropriate curve such as to take the end of the jaw 45 quickly away of the circular comb 66.

The opening of the nippers is obtained by means of the pin 5| fixed to the arm 49 of the bracket lever, which during the movement of the carriage, compelled to slide in the double guide 52, obliges the said lever to rotate in a counter-clockwise direction, thus determining by means of the link 54 the consequent rotation about the fulcrum 43, of the arm 46 carrying the upper jaw 41 of the nippers.

The system of levers is arranged in such a manner that in the position of nippers closed,

the pin 53 comes to be situated slightly beyond the line connecting the rotation pins 48 and 55, and held in position by the stop notches H.

The presence of the spring 51 interposed in the rear portion between the carriage 30 and the arm 44, imparts to the system the necessary elasticity during closing. If the nippers open, the head of the rod 59 comes to contact with the end 56 of the arm 44, thus eliminating the pressure of the spring from the arms of the nippers.

The constructional principles governing the combing machine according to the present invention overcome in a simple and rational manner the problem of assembling a plurality of combing heads in one single machine, for the purpose of improving efficiency as obtainable with a single-head combing machine.

The machine represented at Fig. 6, provided with two heads actuated by a single main control device attains saving in operation, saving of space, saving of cost of the machine, while good accessibility and simplicity of adjustment are also ensured.

In said Fig. 6, in which the reference numerals correspond to those in Figs. 4 and 5, 30 designates the leftand the right-hand nippers-carrying carriages, ontowhich the lower jaws 45 are fixed. Reference numeral 32 designates the left and right rocking control levers, oscillating on the pins 33. The rollers 40 of the carriages bear against the tracks 42. The upper jaws 41 of the nippers, respectively of the left and right carriage, are carried by the arms 46. Members are the left and right circular combs rotating with the shaft and driven by the gear 54. Member 39 is the control shaft for the eccentrics, which carries on its left side the gear 6|, which by means of the intermediary 62 rotatable on pin 63 drives the gear 64 and on the right side an eccentric which drives the lower fluted rollers 61. l r

Having now particularly described and ascertained the nature of the present invention and in what maner the same is to be performed, I declare that what I claim is:

1. In a mechanism for imparting rectilinear motion to the nippers in a combing machine having a frame with a comb rotatably mounted therein, a carriage lever mounting the nippers above said. rotatable comb and having a roller on its end adjacent the rotatable comb, a cam surface on the frame of the machine over which said roller is adapted to move, acontrol lever pivoted on said frame and pivotally connected to the other end of said carriage lever, means on said frame for oscillating the control lever, a first double armed lever pivotally mounted on said carriage lever intermediate the ends of the latter and supporting at one end one of the nipper jaws over said rotatable comb, a second double armed lever pivotally mounted on said carriage lever also intermediate the ends of the latter and carrying the other nipper jaw in cooperative relationship with the first nipper jaw, a compression spring mounted between the other end of the first double armed lever and the carriage lever and biasing the nipper jaws into engagement, a bell crank lever pivotally mounted on said carriage lever and having one arm pivotally connected to the other end of the second double armed lever, and means cooperating with the other end of said bell crank lever whereby during motion of the carriage lever away from the axis of the rotatable comb said bell crank lever will open the nipper jaws and during motion of said carriage lever in the opposite direction said bell crank lever will force the nipper jaws closed.

2. In a mechanism for imparting rectilinear motion to the nippers in a combing machine having a frame with a comb rotatably mounted therein, a carriage lever mounting the nippers above said rotatable comb and having a roller on its end adjacent the rotatable comb, a cam surface on the frame of the machine over which said roller is adapted to move, a control lever pivoted on said frame and pivotally connected to the other end of said carriage lever, means on said frame for oscillating the control lever, a first double armed lever pivotally mounted on said carriage lever intermediate the ends of the latter and supporting at one end one of the nipper jaws over said rotatable comb, a second double armed lever pivotally mounted on said carriage lever also intermediate the ends of the latter and carrying the other nipper jaw in cooperative relationship with the first nipper jaw, a compression spring mounted between the other end of the first double armed lever and the carriage lever and biasing the nipper jaws into engagement, a bell crank lever having two arms at approximately a right angle with one arm pivotally connected to the other end of the second double armed lever, a cam slot formed in said frame, and a roller on the other arm of said bell crank lever and received in said cam slot.

3. In a mechanism for imparting rectilinear motion to the nippers in a combing machine having a frame with a comb rotatably mounted therein, a carriage lever mounting the nippers above said rotatable comb and having a roller on its end adjacent the rotatable comb, acam surface on the frame of the machine over which said roller is adapted to move, a control lever pivoted on said frame and pivotally connected to theother end of said carriage lever, means on said frame for oscillating the control lever, a first double armed lever pivotally mounted on said carriage lever intermediate the ends of the latter and supporting at one end one of the nipper jaws over said rotatable comb, a second double armed lever pivotally mounted on said carriage lever also intermediate the ends of the latter and carrying the other nipper jaw in cooperative relationship with the first nipper jaw,

V 6 V a compression spring mounted between the other end of the first double armed lever and the carriage lever and biasing the nipper jaws into engagement, a bell crank lever pivotally mounted on said carriage lever having two arms at approximately a right angle, a link pivotally connecting one end of the bell crank lever to the other end of said second double armed lever and adapted to be aligned with the said arm of the bell crank lever when the nipper jaws are closed, a cam slot formed in said frame, and a roller on the other end of said bell crank lever and received in said cam slot.

CARLO SCI-ILEIFER.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 712,222 Wenning et a1. Oct. 28, 1902 1,464,820 Heinrich Aug. 14, 1923 1,516,101 Jolly Nov. 18, 1924 1,714,017 Gegauff May 21, 1929 2,384,603 Crockett Sept. 11, 1945 FOREIGN PATENTS Number Country Date 257,232 Great Britain Sept. 29, 1927