US2831216A - Rectilinear combing machines - Google Patents

Description

A ril 22, 1958 e. BRUSORIO El'AL 2,831,216

RECTILINEAR COMBING MACHINES Filed April 13, 1955 3 Sheets-Sheet 1 Fig. 1

April 22, 1958 G. BRUSORIO ETAL 2,831,216

RECTILINEAR COMBING MACHINES Filed April 13, 1955 SSheets-Sheet 2 Fig 2 April 22, 1958 e. BRUSORIO ETAL RECTILINEAR COMBING MACHINES 3 Sheets-Sheet 3 Filed April 13, 1955 United States Patent-O RECTILINEAR COMBING MACHINES Giovanni Brusorio and Adelio Rappa, Grignasco, Italy,

asslgnors to S. p. A. Oflicina Meccanica St. Andrea- Novara, N ovara, Italy Application April 13, 1955, Serial No. 501,070 Claims priority, application Italy April 14, 1954 2 Claims. (Cl. 19-116) This invention relates to a device for use in connection with the nippers of rectilinear combing machines for textile fibres, for automatically cleaning the rectilinear comb.

The device according to this invention consists of a brush carried by a rocking support pivoted to the upper jaw of the nippers, subjected to the action of a control synchronized with the closing and opening movement of the nippers and for the forward and return motion of the feed gill, in order to bring alternately into contact with the needles of the circular comb during the operative period of this member, assist sinking of the fibres into the needles and into contact with the needles of the rectilinear comb for cleaning the latter after the combing step on the fibre tails.

According to an embodiment of this invention the rocking support for the brush is subjected at its lower portion to the intermittent action of a .pair of axially movable plungers which tend to bring the brush into contact with the needles of the rectilinear comb and at its top portion to the action of a pair of springs tending to return the brush against the top jaw of the nippers.

Further characteristic features of this invention will be understood from the appended detailed description referring to the accompanying drawings, which show diagrammatically and by way of example an embodiment thereof.

Figures 1 and 2 are side views of the device during the steps of sinking of the fibres into the needles of the circular comb and cleaning of the rectilinear comb.

Figure 3 is a front view of the device.

A denotes the circular comb of a rectilinear combing machine, B the rectilinear comb, E the supply gill. The

nippers comprise a lower jaw C and a top jaw D relatively movable to each other.

According to this invention the top jaw D carries a pair of ferrules 1, to which are pivotally attached, about pivots 2 the rocking supports 3, ending at the top by a fork 4 and laterally carrying an axially bored boss 5.

The bosses 5 of the rocking supports having fixed thereto, by means of nuts 9, two screw-threaded spindles 8 fast with a frame 6 carrying a lower brush 7 equalling in length the combs on the machine. The brush carrying frame 6 can be adjusted in height through the nuts 9 and carries a forward sheet metal member 10 pressing, with its lower edge, against the brush 7 and adjustable in height by means of slots 11 and screws 12.

The ferrules 1 are secured to the top jaw of the nippers by means of screws 13 and threaded bushes 14, in which move the plungers 15 provided at their forward end with a resilient lock ring 16 and ending by a rear enlarged head 17.

The top of each ferrule 1 has secured thereto a pivot 18 adapted to guide the helical spring 19 bearing at one end on the ferrules and at its opposite end, through a 2,831,216 Patented Apr. 22, 1958 washer 23, against the fork 4 on the rocking supports 3. The springs 19 tend to maintain the support 3, hence the whole of the brush, in its position shown in Figure 1, against the nose on the jaw D of the nippers.

The feed gill E carries at the top a pair of adjustable blocks 20, that can befixed in position by means of the bolts 21, each provided with a gradient 22 acting on the pair of plungers 15 to move the brush. The gradient 22 ends at its lower end at a given height in order to relase the plunger 15 when the nippers are closed.

During the operative step of the circular comb, Figure 1, the rectilinear comb B is in its lifted position, the

brush 1 bearing against the top jaw of the nippers, just touching the needles on the circular comb, thereby causing the fibres to penetrate between the needles, as with conventional brushes on ordinary combing machines.

When the opening of the nippers starts, the feed gill E has already performed its normal return stroke, the head 17 on the plunger will therefore no longer interfere as it moves upwardly, together with the jaw D on the nippers, with the gradient 22 on the blocks 20 that have moved backward together with the gill.

At the end of the opening step of the nippers, during which the rectilinear comb is in its lowered position, the feed gill performs its forward motion causing the plungers to move forward and advance the brush, by the gradient 22 on the blocks 20.

During the next lifting step of the rectilinear comb which has combed the fibre tails, the simultaneous closing movement of the nippers causes the brush to wipe the comb needles, thereby cleaning the comb, Figure 2.

When the nippers are nearly closed, the head 17 on the plunger being released from the gradient 22, the brush again abuts the top jaw of the nippers.

Any dirt removed from the needles of the rectilinear comb which sticks to the brush bristles, is removed by the needles of the first bars of the circular comb.

Automatic cleaning of the rectilinear comb, as compared with hand operation, affords a substantial reduction in inoperative time, hence an increased efliciency in production and an improved cleanliness of the combed fibre, dirt being removed from the rectilinear comb on each working cycle and not eventually and by hand.

What we claim is:

1. In a combing machine having a nipper mechanism comprising a lower and an upper jaw, a reciprocable supply gill, a circular comb, and a rectilinear comb, a clean ing device for the combs, said device comprising a pair of rocking supports carried by the said upper jaw, a brush frame supported from the said supports extending throughout the length of the said circular and rectilinear combs, a brush depending from the frame, said brush engaging the circular comb with the nipper jaws in closed condition and engaging the rectilinear comb with the nipper jaws in open condition, spring means urging the supports to a pivotal position wherein the brush engages the circular comb, a pair of push-plungers slidably supported from the said upper jaw with their one end portion abutting the supports and with their other end portions protruding from the said upper jaw towards the gill, and means supported from the gill adapted to engage the said other end portions and push the plungers on the descent of the upper jaw with the gill in its advanced condition, whereby the said supports may be rocked against the action of the spring means and whereby the said brush may engage the rectilinear comb.

2. In a combing machine as claimed in claim 1, the said means supported from the gill comprising a support 3 4 block adjustably fixed on the gill, and a gradient sup- Refetences-Citedin the file of this patent ported from the block, whereby, in open condition of the UNITED STATES PATENTS nipper jaws, the gradient engages the said other end portion of the adjacent plunger thereby rocking the brush 481,812 036173131111 et a1 Aug. 30, 1892 to the rectilinear comb engaging position. 5 1,0743% Rooney Sept 1913 FOREIGN PATENTS 711,457 France June 30, 1931

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