KR101399682B1 - Drum roller-type device of forming fine villus on monofilament(toothbrush hair) - Google Patents

Abstract

The present invention relates to a device for shaping a fine protrusion on the surface of a monofilament for a tooth brush bristle which passes an unprocessed long (continuous) monofilament through upper and lower drum rollers, which have an intaglio or relief shape corresponding to the shape of the fine protrusion to be shaped and are heated to a predetermined temperature, thereby shaping the fine protrusion on the monofilament (the toothbrush bristle). The fine protrusion can more effectively remove food fitted between teeth or a foreign substance attached between a tooth and a gum than a smooth toothbrush bristle can (effective tooth brushing).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a drum roller-type device for forming fine protrusions on a monofilament (bristles)

The present invention relates to a device for forming fine protrusions on the surface of a monofilament for a bristle, which comprises a plurality of monofilaments (bristles) each having a diameter smaller than the diameter of the monofilament, By passing through the lower roller, microprojections are formed in the monofilaments (bristles), which can improve the removal of foreign matter adhered to the teeth or the gums between teeth and gums, as compared to conventional brushless bristles . In case of extra-fine protrusions or irregularities, it may interact with the toothpaste abrasive to increase the polishing efficiency.

[Patent Document 1] Published Unexamined Patent Application No. 10-2010-0041591 (published on April 22, 2010)
[Patent Document 2] Published Unexamined Patent Application No. 10-2003-0066558 (published on Aug. 2003, 2003)

At present, the bristles are smooth, and even if they brush their teeth, a large amount of food residues sandwiched between the tooth and the tooth or between the tooth and the gum is not removed as much as usual, and the remaining foreign matter smells bad or the dental calculus is formed. To improve the effect of tooth brushing is inevitable improvement of toothbrush.

       A monofilament for a bristle brush which has an untreated original surface smoothly passes through an upper and lower drum roller which is embossed or embossed or embossed and which is heated to a predetermined temperature so as to form a smaller diameter (thin) A toothbrush is formed and used by forming fine protrusions of embossing or embossing on monofilaments (bristles) and applying brush bristles formed with these protrusions.

 Through this device, fine bristles with smooth surfaces are formed with protrusions of fine bosses or engraved teeth, thereby causing a hooking or frictional effect due to the protrusions, thereby improving the brushing effect, such as a spatula or a foreign body removing effect adhered between the teeth and the gums .

Fig. 1 is a perspective view of a drill roller type mandrel, which forms surface fine protrusions on a cylindrical monofilament (bristles) with smooth surface. Same as the representative
Fig. 2 is a cross-sectional view of upper and lower contact surfaces (corresponding to 14 in the drawing) of the projection forming portion of the upper and lower drum rollers
Fig. 3 is a drum roller shaft support, which has shaft holders and bearings, and pulls the handle (a representative of Fig. 1) downward to raise the upper drum roller so that the monofilament can be easily set on the upper and lower drum rollers.
Fig. 4 is a cross-sectional view of the upper and lower drum roller engaging gear at the end of the upper and lower drum rollers (corresponding to ⑮ in the representative figure)
5 is a sectional view of the hall type of the monofilament inlet / outlet guide and the slot type drawing of the guide (corresponding to 12 of the representative drawing)
Fig. 6 shows an example of a monofilament before processing and a monofilament after processing (formation of protrusions) (corresponding to (1) before processing and (after) (11)
Fig. 7 is a photograph showing the actual enlarged photograph (the shape of the protrusion is negative, the shape of the protrusion is positive, the shape of the protrusion is the protrusion), the cylindrical monofilament having a diameter of 0.23 mm (upper side) Can be changed to change)
8 is an enlarged photograph of an actual sample in which a plurality of strands formed by processing a monofilament into a simple metal mold
9 is an actual enlarged photograph of a long monofilament formed by protruding and formed by a simple die (used to make a toothbrush by cutting it to a proper length)

This device is mainly embossed or embossed in the shape of a micro projection to be molded in monofilament which is a core component, and a cartridge heater and a temperature control sensor for heating to a predetermined temperature are set, and upper and lower ends are engaged with each other The upper and lower drum rollers with the engagement gear (if there is no gear, the pulley on the shaft and the belt with 8 characters), the shaft support and monofilament that supports the upper and lower rollers are correctly seated in the recessed area of the roller An input / output guide hole (or slot type) portion for enabling the rotation speed, and a power portion for adjusting the rotation speed and the like.

Referring to a representative figure or a detailed description with reference to Fig. 1,

A plurality of monofilaments wrapped around a bobbin (whose representative diameter is ① rather than the processed monofilaments to be obtained) is folded down by a lever (see (a) in FIG. 3) The drum roller shaft is raised to make a clearance between the upper and lower rollers and then set to match the engraved groove (⑫ in the drawing) and the engraved groove of the drum roller (Fig. 2 in the representative figure) Rollers) and power the motor to start the machine. The filament is wound like a ⑪ in the figure and wound on the bobbin.

To do the above operation, turn on the temperature controller and supply the power through the round wire terminal of the representative figure ③ and the round brush terminal (⑬) of the representative figure to operate the cartridge heater and the temperature sensor The upper and lower drum rollers are heated to keep the monofilament at an appropriate temperature (expected to be between 130 ° C and 170 ° C) so that the protrusions can be formed to a sufficient degree to be molded. In addition, by controlling the passage resistance of the pad (2) of the representative figure, it is possible to maintain proper elasticity of the monofilament and to prevent the monofilament entrance guide (see FIG. 2) The holes are set slightly lower so that the monofilaments are easily set. At this time, since the drum roller temperature, the resistance of the pad, and the passing speed are related to each other, the conditions are appropriately set based on the experiment.

     When the weight of the upper drum roller is not sufficient for forming the projections, the shaft pressing spring in the upper part of Fig. 3 (⑧ in the drawing) is adjusted to adjust a sufficient molding pressure between the upper and lower drum rollers, If the roller is slightly elongated, it blows cold air to the outlet of the forming drum roller like ⑦ of the representative figure to fasten the processed monofilaments. Allow additional rotational power to be transmitted during additional installation (additional motor installation can be omitted). Such processed monofilaments are used for toothbrush manufacturing by cutting and further processing at appropriate intervals. Other thicker monofilaments can also be applied to other industrial brushes.

- Explanation of symbols of the representative figure (same as FIG. 1)
①: Unprocessed ordinary monofilament. Made mainly by extrusion and tensile, smooth surface
②: Oil pad (PAD). Prevent monofilaments from sticking to the mold after forming the projection by heating. To give proper elasticity by adjusting the resistance of the passing monofilament.
③: Bundle of wire and brush fixture. To supply electricity to the cartridge heater and connect the thermostat sensor (receives the information from the sensor and adjusts the supply so that the set temperature is automatically maintained)
④: Cartridge heater and temperature sensor. Drill a hole in the drum roller
⑤: Depressed groove on the drum roller (mold) line. Engraving engraving or embossing of various shapes of projections to be molded.
⑥: Upper drum roller. Below the lower drum roller
⑦: Cooling system. For quick curing of finished bristles
⑧: Pressure spring device. To obtain the required pressure on the upper and lower drum rollers for dent formation.
⑨: Upper and lower drum roller connection rubber belt. The upper and lower drum rollers are arranged to rotate in an interlocking manner with 8 characters, and if there is a drum roller end engagement gear, remove it
⑩: Upper drum roller support bearing and holder. See FIG.
⑪: Monofilaments with protrusions formed through the device
⑫: Monofilament inlet / outlet hole (hole type or slot type)
⑬: Brush contact round terminal. Connected to cartridge heater and temperature sensor of upper and lower drum rollers
⑭: Contact surface (line) of the upper and lower drum rollers
⑮: Engaging gear machined on the upper and lower drum rollers. The upper and lower drum rollers are rotated to rotate (may not be present when the belt is applied, and vice versa)
Ⓐ: Upper drum roller elevation lever. To facilitate the initial setting of the monofilament for the projection molding process
Ⓑ: Electric motor. Speed adjustable

Claims (2)

A cartridge heater and a temperature control sensor for heating the upper and lower drum rollers to be operated at a predetermined temperature are set, and the monofilaments are formed with fine depressions or embossed depressed groove lines to be molded A shaft supporting portion for supporting the upper and lower rollers, an input / output guide portion for allowing the monofilament to be seated accurately on the depressed portion of the roller, and a power portion for adjusting the rotation speed, A device capable of forming a projection of various shapes. The apparatus according to claim 1, wherein a projection of the drum roller has a monofilament seating guide in the recessed groove line.

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