US3379175A - Flock-applying apparatus - Google Patents

Flock-applying apparatus Download PDF

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Publication number
US3379175A
US3379175A US541321A US54132166A US3379175A US 3379175 A US3379175 A US 3379175A US 541321 A US541321 A US 541321A US 54132166 A US54132166 A US 54132166A US 3379175 A US3379175 A US 3379175A
Authority
US
United States
Prior art keywords
flock
fibers
grid
bars
bar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US541321A
Other languages
English (en)
Inventor
Francis T Spencer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Westpoint Pepperell Inc
Original Assignee
Westpoint Pepperell Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to NL135855D priority Critical patent/NL135855C/xx
Application filed by Westpoint Pepperell Inc filed Critical Westpoint Pepperell Inc
Priority to US541321A priority patent/US3379175A/en
Priority to GB43595/66A priority patent/GB1156353A/en
Priority to ES0331947A priority patent/ES331947A1/es
Priority to NL6614441A priority patent/NL6614441A/xx
Priority to BE688435D priority patent/BE688435A/xx
Priority to FR80415A priority patent/FR1496958A/fr
Priority to CH1517566A priority patent/CH468259A/fr
Priority to DE19671652472 priority patent/DE1652472C/de
Application granted granted Critical
Publication of US3379175A publication Critical patent/US3379175A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H11/00—Non-woven pile fabrics

Definitions

  • ABSTRACT 0F THE DISCLOSURE An electrostatic grid structure interposed in the path of downwardly failing flock fibers dropped freely from a dispensing device, said grid structure comprising parallel, spaced rotatable elements charged to a high electrostatic potential, and means for rotating said cylindrical elements at a constant predetermined angular velocity.
  • This invention pertains to apparatus for applying flock fibers to an adhesively-coated surface-more particularly to apparatus of the kind wherein the flock fibers, in tip proaching said surface, are caused to fall freely through an electrostatic field whereby the fibers tend to arrange themselves in parallel relation.
  • the flock fibers are deposited in spaced relation, that is they are relatively sparse as compared with usual procedure, and in order to get the desired results, for example, heat insulation; pleasing appearance; or ornamental effects, these fibers should be predominantl perpendicular to the base fabric and arranged with substantially uniform distribution so that the completed material provides a substantially uniformly level surface defined by the tips of the fibers.
  • the flock fibers are discharged from a hopper by gravity and, in dropping, pass through an electrostatic field which has the purpose of orienting the falling fibers so that they become substantially parallel as they continue to fall and eventually drop into contact with the adhesively-coated surface of the base fabric which is being rapidly vibrated up and down by beater devices disposed below it.
  • T e electrostatic field is usually produced by the use of a grid comprising stationary steel tubes of the order of of an inch in diameter spaced a short distance apart and which are charged to a very high potential by appropriate electrical apparatus. The lines of force first extend outwardly from these bars in a generally radial direction but then bend downwardly toward the earth.
  • the object of the present invention is to provide apparatus for applying low denier flock, for instance, from 3 to 6, and, for example, of the order of 2 mm. or more in length, in the manufacture of flocked fabric, whereby the above difficulties are overcome, and to produce a deep flock layer devoid of irregularly distributed cavities or fortuitously located areas wherein the fibers are nonparallel or abnormally dense, or are not perpendicular to the base fabric.
  • the grid bars whereby the electrostatic field is produced, and which in prior devices are stationary, are so mounted that they may be rotated at a s eed which may vary in accordance with the character of the fibers, but which may be within a range, for example, of from 5 to 30 rpm.
  • FIG. 1 is a fragmentary front elevation illustrating one desirable embodiment of the invention
  • FIG. 2 is a fragmentary section, to larger scale, on the line 22 of FIG. 1, showing one of the rotary electrodes, in accordance with the present invention, whereby the building up of fiber masses on the electrode is prevented;
  • FIG. 3 is a fragmentary diagrammatic vertical section illustrating a modified construction of grid bar.
  • the character F designates a portion of the machine frame which supports bearings for parallel, horizontal, rotary shafts 10 and 10a, each of which has fixed thereto a drum D.
  • These drums support an endless belt B having a horizontal upper run which contacts a table T of electrical-conducting material, and which carries the base fabric K.
  • FIG. 2 which, in accordance with customary practice, will have an adhesive upper surface onto which flock fibers S drop after falling through the electrostatic field.
  • the shaft 10 is provided with a sprocket which receives a chain C which is driven continuously by an electric motor M through the intermediary of a variable-speed, speed-reducer R.
  • flock-distributing hoppers 11, 11a are arranged to discharge flock so that it will fall through the electrostatic field onto the surface of the fabric S.
  • These flock-distributing hoppers may be of customary type, each having a shaft 12 or 12a, respectively, carrying agitating means of any desired type (not shown) driven by the motor M through suitable connections A and having slots in their lower portions through which the flock is discharged.
  • the trunnion 15a which extends outwardly from the rear end of the electrode E is provided with a sprocket which is embraced by a chain 17 which also embraces a sprocket 18 on the rear end of the shaft 10a which carries the drum D.
  • the electrode E is constantly rotated.
  • a sprocket 26, also fixed to the trunnion 15a, is embraced by a chain 21 which also embraces a sprocket on the trunnion at the forward end of the next electrode E (FIG. 1).
  • the electrodes E and E are driven.
  • the apparatus may be, in general, similar to those in customary use, except that customarily the electrodes are stationary, it appears unnecessary to describe the mechanism and electrical connections in further detail-it being understood that, for example, the electrodes or grid bars will be charged to one polarity, for example positive, while the support for the material to which the fibers are to be I applied will be charged to the opposite polarity, for example negativethe charge being established and maintained by any suitable or conventional apparatus such as diagrammatically indicated at T (FIG. 1). While the desired arrangement for rotatably supporting the grid bars or electrodes by the use of electrically insulating material is desirable, it will be understood that equivalent means is contemplated as within the scope of the invention.
  • FIG. 3 shows the grid bar E as stationary, being supported at its opposite ends in frame elements 14a of insulating material with a suitable conductor W connected to the bar near one end and through which the charge is supplied to the bar.
  • the bar E or at least that portion of which functions for the purpose of the present invention, is housed within a non-conducting, rotary, hollow guard cylinder G having hollow trunnions T at its opposite ends, through which the ends of the grid bars pass, and which are received in hearings in stationary frame members Z which, desirably, should also be of insulating material, one of the trunnions T having fixed thereto a sprocket wheel W which is embraced by a chain 17a, like the chain 17 of FIG. 2, by means of which the guard cylinder is slowly rotated.
  • apparatus for applying flock fiber of a denier not substantially exceeding 8 and of a length exceeding 2 mm. to an adhesively-coated surface and which comprises means for supporting said surface, an electrostatic grid above said surface whose electrical po tential is opposite to that of said surface, and means above said grid for so discharging flock fibers that the fibers fall between the bars of the grid and onto said surface; characterized in that the grid comprises a plurality of spaced parallel bars, means for supporting the individual bars to rotate, and means for rotating the several bars.
  • each grid bar is cylindrical and tubular, insulating means supporting each respective bar, and motor means for rotating each of said bars.
  • each of the grid bars comprises a hollow cylinder, means for supporting each cylinder to rotate about its own axis, the supporting means being such that the cylinder is insulated from the earth, an
  • electric motor and means for transmitting motion from the motor for actuating the flock agitator in the hopper and for rotating each of said hollow cylinders.
  • a container for flock fibers having a discharge aperture through which fibers may fall, a grid, electrically charged to one polarity and comprising spaced parallel cylindrical elements so located below the container that flock fibers, falling from the container, pass between said elements of the grid, and an element charged in the opposite polarity for supporting the base to which the fibers are to be adhered, characterized in that said cylindrical elements are hollow and rotatable, and power-operable means for rotating said cylindrical elements at a predetermined angular velocity,
  • a container for flock fibers having a discharge aperture through which fibers may fall, a grid, electrically charged to one polarity and comprising spaced parallel cylindrical elements so located below the container that fibers formed .on the container pass between said elements, further characterized in that said cylindrical elements are hollow and are of a nonconducting material, each of said elements housing a fixed grid bar of conductive material, means insulating each of said fixed bars from the earth, further characterized in having power-operated means for turning said rotatable cylindrical elements at a predetermined uniform angular velocity thereby to prevent the build up of flock fibers upon said cylindrical surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Electrostatic Spraying Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)
  • Nonwoven Fabrics (AREA)
  • Treatment Of Fiber Materials (AREA)
US541321A 1966-04-08 1966-04-08 Flock-applying apparatus Expired - Lifetime US3379175A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
NL135855D NL135855C (fr) 1966-04-08
US541321A US3379175A (en) 1966-04-08 1966-04-08 Flock-applying apparatus
GB43595/66A GB1156353A (en) 1966-04-08 1966-09-29 Flock-Applying Apparatus
ES0331947A ES331947A1 (es) 1966-04-08 1966-10-05 Aparato para aplicar fibras de flocado a una base recubierta de adhesivo.
NL6614441A NL6614441A (fr) 1966-04-08 1966-10-13
BE688435D BE688435A (fr) 1966-04-08 1966-10-18
FR80415A FR1496958A (fr) 1966-04-08 1966-10-18 Appareil d'application de fibres de flocage à une surface enduite d'un adhésif
CH1517566A CH468259A (fr) 1966-04-08 1966-10-20 Appareil de flocage d'une surface d'une base enduite d'un adhésif
DE19671652472 DE1652472C (de) 1966-04-08 1967-01-17 Einrichtung zum Beflocken einer kleb stoffuberzogenen Unterlage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US541321A US3379175A (en) 1966-04-08 1966-04-08 Flock-applying apparatus

Publications (1)

Publication Number Publication Date
US3379175A true US3379175A (en) 1968-04-23

Family

ID=24159083

Family Applications (1)

Application Number Title Priority Date Filing Date
US541321A Expired - Lifetime US3379175A (en) 1966-04-08 1966-04-08 Flock-applying apparatus

Country Status (6)

Country Link
US (1) US3379175A (fr)
BE (1) BE688435A (fr)
CH (1) CH468259A (fr)
ES (1) ES331947A1 (fr)
GB (1) GB1156353A (fr)
NL (2) NL6614441A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3641976A (en) * 1970-08-05 1972-02-15 Indev Inc Electrostatic grids
US4069791A (en) * 1976-10-01 1978-01-24 E. I. Du Pont De Nemours And Company Automatic toning device
US4414916A (en) * 1981-05-20 1983-11-15 E. I. Du Pont De Nemours & Co. Automatic toning apparatus having a vertically reciprocating hopper
US4483893A (en) * 1982-09-30 1984-11-20 The Standard Products Company Fused flock system
US20040170799A1 (en) * 2003-02-28 2004-09-02 Roger Carr Heat-insulating material and method of making the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105903606B (zh) * 2016-06-11 2019-01-04 安徽中固建设有限公司 一种防落梁挡块表面防蚀处理均匀喷涂装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2245301A (en) * 1931-11-20 1941-06-10 Behr Manning Corp Manufacture of abrasive articles
US2715585A (en) * 1951-03-15 1955-08-16 Velveray Corp Electrostatic flocking procedures and apparatus
US2742018A (en) * 1952-01-02 1956-04-17 Lindquist Theodore Apparatus for coating by electrostatic force
US3114482A (en) * 1962-04-30 1963-12-17 Ralph H Dunaway Apparatus for dispensing dry powdered material
US3269356A (en) * 1963-08-22 1966-08-30 Standard Products Co Electrostatic flocking apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2245301A (en) * 1931-11-20 1941-06-10 Behr Manning Corp Manufacture of abrasive articles
US2715585A (en) * 1951-03-15 1955-08-16 Velveray Corp Electrostatic flocking procedures and apparatus
US2742018A (en) * 1952-01-02 1956-04-17 Lindquist Theodore Apparatus for coating by electrostatic force
US3114482A (en) * 1962-04-30 1963-12-17 Ralph H Dunaway Apparatus for dispensing dry powdered material
US3269356A (en) * 1963-08-22 1966-08-30 Standard Products Co Electrostatic flocking apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3641976A (en) * 1970-08-05 1972-02-15 Indev Inc Electrostatic grids
US4069791A (en) * 1976-10-01 1978-01-24 E. I. Du Pont De Nemours And Company Automatic toning device
US4414916A (en) * 1981-05-20 1983-11-15 E. I. Du Pont De Nemours & Co. Automatic toning apparatus having a vertically reciprocating hopper
US4483893A (en) * 1982-09-30 1984-11-20 The Standard Products Company Fused flock system
US20040170799A1 (en) * 2003-02-28 2004-09-02 Roger Carr Heat-insulating material and method of making the same

Also Published As

Publication number Publication date
BE688435A (fr) 1967-04-18
ES331947A1 (es) 1967-07-01
DE1652472B2 (de) 1972-08-03
DE1652472A1 (de) 1971-09-02
NL135855C (fr)
NL6614441A (fr) 1967-10-09
GB1156353A (en) 1969-06-25
CH468259A (fr) 1969-02-15

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