US2786239A - Brush reciprocating mechanism for combing machines - Google Patents

Description

March 26, 1957 w. CORBETT BRUSH RECIFROCATING MECHANISM FOR COMBING MACHINES Filed June 14, 1954 3 Sheets-Sheet 1 INVENTOR. LAWRENCE w. CORBETT.

ATT'Y.

March 26, 1957 L. w. CORBETT BRUSH RECIPROCATING MECHANISM FOR COMBING MACHINES Filed June 14, 1954 S Sheets-Sheet 2 INVENTOR.

LAWRENCE W. CORBETT.

Fig.10

I I I ,f I I I I I March 26, 1957 L. w. CORBETT BRUSH RECIPROCATING MECHANISM FOR COMBING MACHINEIS Filed June 14, 1954 3 Shets-Sheet 3 n ma MR mm w E C N .r R W A l- BRUSH RECIPROCATING MECHANISM FOR COMBING MACHINES Lawrence W. Corbett, Worcester, Mass, assignor to James Smith & Son, Inc., Worcester, Mass, a corporation of Massachusetts Application June 14, 1954, Serial No. 436,514

13 Claims. (Cl. 19-115) This invention relates to new and improved brush reciprocating mechanisms for combing machines in the textile arts, and the principal object of the invention resides in the provision of such a mechanism which is capable of greatly increased rapidity of reciprocation of the brush, particularly by the use of a balancing slide, so that the inertias involved in the reciprocatory motions are smoothed and balance out in such a way as to allow great increase in the speed of reciprocation and reversal of the brush and consequent similar increase in the speed of operation of the combing machine to which it is applied.

Other objects and advantages of the invention include the provision of a slide operated by a crank for reciprocating the brush holder and brush, said crank also operating at the same time a balancing slide located approximately at light angles to the path of the brush holder slide and being arranged so that it is approximately midway of its stroke at the ends of the stroke of the brush holder slide, so that the moments are balanced; the provision of a combining machine brush mechanism as above described including the provision of weights in the form of counterbalances located diametrically opposite the operative position of said weights and the amount thereof being such as to balance the slides in a dynamic manner so as to carry out the function of smoothness and speed of operation, particularly at the points of reversal of the brush.

Other objects of the invention include the provision of a novel lubricating system and including a pump operated by the motion of the brush holder slide, and the provision of new and improved adjustable brush-holding means.

Other objects and advantages of the invention will ap pear hereinafter.

Reference is to be had to the accompanying drawings, in which Fig. 1 is a view in elevation of mechanism according to the present invention, parts being broken away and in section;

Fig. 2 is a section on line 2-2 of Fig. l;

' Fig. 3 is an enlarged view illustrating the crank and the counterweights therefor;

Fig. 4 is an end view, looking in the direction of arrow 4 in Fig. 3;

Fig. 5 is an enlarged view in elevation of the new and improved brush slide and securing means, parts being broken away and in section;

Fig. 6 is an enlarged section on line 66 of Fig. 5 showing how the brush is connected to the brush-holder;

Fig. 7 is a top plan view of the brush slide, looking in the direction of arrow 7 in Fig. 5;

Fig.8 is an enlarge-d section on line 8--8 of Fig. 6;

Fig. 9 illustrates the brush and its connecting means;

[Fig 10 is a plan view of the brush, looking in the direction of arrow 10 in Fig. 9;

Fig. 11 is a view in elevation, looking in the direction of arrow 11--11 in Fig. 2 and showing the mechanism of Fig. 1 at the opposite side thereof;

atent F id Fig. 12 is an enlarged view of the pump actuating mechanism, looking in the direction of arrow 12 in Fig. 2;

Fig. 13 is an edge view of a part thereof, looking in the direction of arrow 13 in Fig. 12;

Fig. 14 is a plan view of the pump parts being in section, looking in the direction of arrow 14 in Fig. 1;

Figs. 15 and 16 are sections through the pump taken on the respective lines in Fig. 14; and

Fig. 17 is a diagrammatic view illustrating the theory and operation of the present invention and illustrating the manner in which the brush may be made to recipro cate at a much faster rate of speed than heretofore.

in combing machines in the textile arts, the speed of operation and productive capacity is limited by the speed of reciprocation of the brushes which apply the material to be combed to the pins, and in this respect attention is directed to United States Patent No. 2,570,767 issued October 9, 195 1, illustrating a combing machine and showing the art to which the present invention belongs. The details of the combing machine have been omitted in the present case, as the present invention applies only to the brush mechanism therefor, but in any event, these brushes are arranged usually for vertical reciprocation to load the pins which pass therebelow with wool .or other material to be combed.

In Fig. i, the reference numeral 10 indicates the pin holder which may be said to be traveling in the direction of the arrow A underneath the brush 12 which is arranged for rapid vertical reciprocation for the purpose of applying material to be combed to the pins 14. The brush i2 is mounted on a brush-holder 16 and this is mounted in turn to be reciprocated by a slide 18 appro-priateiy guided by vertical guides 2%, these guides being mounted at the interior of framework or housing 22 of the machine and being adjustably supported thereon in order to best accomplish their guiding function.

The guides 2d are provided with upright parallel cylindrical standards or guide members 24 which are secured thereto in any desired manner and support at their lower ends an apron 26. The apron 26 acts to cover the large hole or apertures in housing 22 formed by flange 32 for extension therethrough of the brush legs to be described, and a lip or rim as on slide 18 seals against a splash of oil from the slide to the holes in the apron for the brush legs. Lubricant 28 is held in the bottom portion 30 of the housing 22, flange 32 forming the oil reservoir.

The slide 18 is connected to a connecting rod 34, in turn mounted on a crank as at 36, said crank having a. drive axis at 33, as represented by the main drive shaft 40, see Fig. 2. This drive shaft may be mounted in suitable bearings and driven by a pulley 42 or other means. The slide 18 is provided with vertical concave edge portions 44- (see Fig. 7), these edge portions receiving the cylindrical standards or guides 24 and providing for ample bearing surfaces in the reciprocation of the slide.

The crank is also provided with a connecting rod 46 for a balancing slide 48 reciprocably mounted somewhat similarly to slide 18 on rods 50 held in supports 52 at right angles to the path of slide 18. The connecting rods 34 and 46 are on the same center and with reference to the diagram of Fig. 17 it will be seen that this center in revolving about the center of shaft 40 always presents the slide 53 at a midway point when the slide 18 is at (nor near) the extreme of its reciprocatory path.

The crank 36 is provided with a pair of spaced depending legs 54 and 56 to which are secured the counterbalance weights 58, and it is to be noted that the axis of the crank 36 is at with respect to the counterbalanced weights 58, with the axis 38 of the drive shaft 40 intermediate the same.

the indications on this di- Kenning to Fig agrant are as follows:

WB refers to the balance slide 48; CRS refers to the connecting rod for the balance weight; WCRC refers to the" weight of onerod atthe'centei" of the crank; WC refers tothe unbalanced wag-st or the crank; WCRP refers to the weight of the fed at the center of the pin; and it is believed that the other designations are clear. S and R are the distances from the center of rotation of the main drive' sliaft. In order to provide for a complete balance of this mechanism, it has been found necessa y to follow the formula for complete balance:

The effect of the above d'esc'ribed mechanism resides in a very high speed mechanical reciprocatory system which is based on the complete balance achievable in a \(8' combustion en ine; Even at high speeds, the operatidn very smears and vibration-free, and the faster the prediction of the machine for combing the Wool or other niat'erial, and the present machine is able to more than double the speed of prior art machines using conventional brush reciprocatory mechanisms.

The slides and the connecting rods are in the same plane and therefore there are no moments as in the case of the multi-cylinder engine with several cylinders in each block. Hence there remain only the inertia forces to consider. These forces consist of primary forces acting with the frequency of rotation, and secondary forces acting with twice the frequency of rotation and which are produced by the angularity of the connecting rod. The secondary forces change direction every 90 of rotation, with the 90 displacement of the two slides, and therefore the secondary forces of one slide are neutralized by the secondary forces of the other slide. When the primary inertia forces of one slide are at a maximum, those of the other slide are zero, and at the mid point or 45 position as respects the travel of the slides, the inertia forces of the two slides are equal and their sum equals the maximum ofone slide. At any intermediate position, the sum of the inertia forces is equal to the maximum inertia force of one slide, and the radial component of the sum of the inertia forces is a constant and is balanced by a constant centrifugal force produced by the counterbalance weight located 180 from the crankpin. This is expressed in the above formula.

The brush holder 16 is provided with a pair of spaced upright members 50, these being longitudinally centrally slotted (see Fig 9) andbeing receivable in the respective tubular members 62' which are in turn mounted at the lower end of the reciprocating slide 18. The tubes may be mounted in any desired way but it is preferred to use cross-pins such as those at 64 and oil-retaining web's as at 66.

At their lower ends, tubes 62 are provided with interior members 63 which are received in the slots 70 in the members 60 as the brush holder is raised with respect to tubes 62. when the desired adjustment of the parts is achieved, a cross bolt 72 (Fig. 8) may be tightened up with respect to its washer members '74, this bolt extending directly through the slots 7d and the interior supporting members 68'. This provides a quick adjustment but an extremely solid construction as is evidenced by Fig; 8 showing that the members 60 although slotted are closely and securely held at all sides in their adjusted positions within the tubes 62. v

The lubricating system includes a pump of any convenient descriptioniridicated at 7 6. In the present case, this pump is provided with plungers 7 8 which are simultaiieoii'sly operated by an arm 80 through means of an intervening plate 82. Arm St} is the short arm of a bell crank, the long arm of which is indicated at 83 and the piifot for which is indicated at $4 (see particularly Fig. ii); The ldlig arm 83 is" substantially upright and it is provided at its upper end with'tlie roller hearing or the ciprocates vertically therewith. Guide 86 is mounted at a slight angle to the vertical, so that as slide 18 reciprocates, the arm 83 has a high speed but very slight angular motion, and this of course oscillates arm and actuates the plungers 78 in order to provide for pumping the oil in thc; r sfvdil 23 tl'ifdulidl'lt the system as required. The angle of guideway 86 is adjustable by means of a slot and holding screw 87. l r

This system comprises a'pa'if of lines 88 and 90 which proceed to a pair of oiling devices 92 from which the oil may be distributed over the entire machine at any point that particularly needs it. One of these points is of course the crank 36 which is provided with openings 94 for complete lubrication thereof.

Having thus described my invention and the advantages thereof, 1 do not wish to be limited to the details herein disclosed, otherwise than as set forth in' the claims, but what I claim is:

1. Brush reciprocating mechanism for a combing machine comprising a vertical guideway, a slide for recipi'ocation therecn, a brush holder on the slide, a secondguideway inclined to the firstguideway, a slide for reciprocation on the second guideway, and means to reciprocate the slides in unison in a cycle wherein one slide is located intermediate its stroke with the other slide adjacent the end of the stroke thereof.

2. Brush reciprocating mechanism for a combing machine comprising a vertical guideway, a slide for reciprocation thereon, a brush holder on the slide, a brush, means to adjust the brush along the slide for variation of the reciprocatory path of the brush, a second guideway inciined to the first guideway, a slide on the second guideway, and means to reciprocate the slides in unison in a cycle wherein one siide is located intermediate its stroke with the other slide adjacent the end of the stroke thereof.

3. Brush reciprocating mechanism fora combingmachine comprising a vertical guideway, a slide for reciprocation thereon, a brush holder on the slide, a second guideway inclined to the first g-uideway, a slide on the second guideway, and means to reciprocate the slides in unison in a cycle wherein one slide is located intermediate its stroke with the other slide adjacent the end of; the stroke thereof, said means including a crank, a drive shaft for the crank, the slides being connected to the crank on the same axis.

Brush reciprocating mechanism for a combing machine comprising a vertical guideway, a slide for reciprocation thereon, a brush holder on the slide, abrush, cans to adjust the brush on the slide for variation of the reciprocatory path of the brush, a second guideway inclined to the first guideway, a slide on the second guideway, and means to reciprocate the slides in unison in a cycle wherein one slide is located intermediate its stroke with the other slide adjacent the end of the stroke thereof, said means including a crank, a drive shaft for the crank, the slides being connected to the crank on the same axis.

5. Brush reciprocating mechanism for a combinginachine comprising a vertical guideway, a slide for rec'ipro: cation thereon, a brush'holder on the slide, a second guideway inclined to the first guideway, a slideon the second guideway, and means to reciprocate the slides in unison in a cycle wherein one slide is located intermediate its stroke with the other slide adjacent the end of the stroke thereof, said means including a crank, a drive shaft for the crank, the slides being connected to the crank on the same axis, and a counterweight applied to the crank diametrically opposite the connection of the slides thereto, with respect to the drive shaft.

6. Brush reciprocating mechanism for a combing ma chine comprising a pair of relatively inclined gateways,

a slide on each guide'w-ay', a brush holder on one slide,

a shaft, a crank on the shaft, a connecting rod for each slide, said connecting rods being connected to the crank on a single axis, so that the slides are out of phase as regards any instant of reciprocatory travel thereof, and a counterweight on the crank arranged diametrically opposite the said single axis of the connecting rods on the crank, as regards the shaft.

7. Brush reciprocating mechanism for a combing machine comprising a pair of relatively inclined guideways, a slide on each guideway, a brush holder on one slide, a shaft, a crank on the shaft, a connecting rod for each slide, said connecting rods being connected to the crank on a single axis, so that the slides are out of phase as regards any instant of reciprocatory travel thereof, and means to dynamically balance the slides and crank.

8. Brush reciprocating mechanism for a combing machine comprising a pair of guideways arranged at angles to each other, a slide on each guideway, a brush holder on one slide, a shaft, a crank on the shaft, a connecting rod for each slide, said connecting rods being connected to the crank on a single axis, so that the slides are out of phase as regards any instant of reciprocatory travel thereof, and means to dynamically balance the slides and crank, a guideway arranged at an angle to one of the firstnamed guideways and reciprocable therewith, an oil reservoir, an oil pump therein, and a pump actuator engaged in the angularly arranged guideway and actuated thereby.

9. Brush reciprocating mechanism for a combing machine comprising a pair of guideways arranged at angles to each other, a slide on each guideway, a brush holder on one slide, a shaft, a crank on the shaft, a connecting rod for each slide, said connecting rods being connected to the crank on a single axis, so that the slides are out of phase as regards any instant of reciprocatory travel thereof, and means to dynamically balance the slides and crank, a guideway arranged at an angle to one of the firstnamed slides and reciprocable therewith, an oil reservoir, an oil pump therein, and a pump actuator engaged in the angularly arranged guideway and actuated thereby, said acutator being in the form of a lever.

10. The mechanism of claim 9 wherein the lever is a bell-crank, one end of which is engaged in the angularly arranged guideway and the other end of which is connected to actuate the oil pump.

11. A brush reciprocating and lubricating mechanism for a combing machine comprising a guideway, a slide therein, a brush thereon, means to reciprocate the slide, a second guideway arranged at a slight angle to the first guideway and located on the slide, a bell-crank having a long arm engaged in the second guideway, and a lubricant pump, said bell-crank having a short arm operable to actuate the pump.

12. A brush reciprocating and lubricating mechanism for a combing machine comprising a guideway, a slide therein, a brush thereon, means to reciprocate the slide, a second guideway arranged at a slight angle to the first guideway and located on the slide, a bell-crank having an arm engaged in the second guideway, and a lubricant pump, said bell-crank having another arm operable to actuate the pump, said slide reciprocating means including a crank, and a lubricant drip device located thereabove and receiving the lubricant from the pump.

13. A brush reciprocating and lubricating mechanism for a combing machine comprising a guideway, a slide therein, a brush thereon, means to reciprocate the slide, a second guideway arranged at a slight angle to the first guideway and located on the slide, a bell-crank having an arm engaged in the second guideway, and a lubricant pump, said bell-crank having another arm operable to actuate the pump, said slide reciprocating means including a crank, and a lubricant drip device located thereabove and receiving the lubricant from the pump, said crank being hollow and counterbalanced as respects the slide and receiving lubricant interiorly thereof.

References Cited in the file of this patent UNITED STATES PATENTS Re. 10,930 Lund May 15, 1888 460,654 Parkin Oct. 6, 1891 471,456 Albert Mar. 22, 1892 1,595,452 Cole et a1. Aug. 10, 1926 1,623,391 Burtnett Apr. 5, 1927 2,138,862 Johnston Dec. 6, 1938 FOREIGN PATENTS 381,018 Great Britain Sept. 29, 1932

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