JPH11318567A - Bristle tip rounding device for brush - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bristle tip rounded device capable of efficiently rounding the bristle tips of the entire peak parts and dent parts on the chevron-shaped cut surface of a brush filling surface, uniformly finishing the entire filling part without irregularities and remarkably improving productivity in a simply constituted inexpensive form. SOLUTION: A grinding member is abutted to the bristle tip of the filling part B of a brush A, grinding is performed and the bristle tip is rounded. Bar members 1 arranged matched with the dent parts of the filling cut surface composed of the peak parts and the dent parts formed of the rips of the filling part B are freely rotatably provided. Then, the grinding material 2 is coated on the outer peripheral surface of the bar member 1, that is a helical bar, of a grinding bar 3 to which a grindstone is helically attached is equipped as the grinding member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brush for rounding a bristle tip by polishing the bristle tip so as not to damage the gums or damage the gingiva at the bristle tips of a brush such as a toothbrush. And a hair tip rounding device.

[0002]

2. Description of the Related Art Brushes conventionally used for cleaning the oral cavity such as toothbrushes have brush tips that are uniformly rounded to improve the feeling of use and to smooth and soften the skin without damaging the gums. It is known to finish.

[0003]

As a means for rounding the tip of the hair, a sharpening tip of the cut hair is brought into contact with a polishing member at various angles to polish the tip of the hair and make the tip round. For this purpose, various types of polishing members have been proposed, but after brush hair is planted on the handle, the general-purpose mountain-type brush in which the flocked portion is cut into valleys,
Although it is easy to round the tip of the brush at the tip of the mountain, it is extremely difficult to round the tip of the valley. As a result, the rounded tip of the brush tends to be uneven, making it impossible to evenly round the tip. . In addition, the workability of this hair tip rounding operation tends to be affected by the cut surface of the flocked portion, and it takes time to uniformly and evenly round the hair tips, and there is a problem that productivity cannot be increased. The present invention is intended to eliminate these conventional drawbacks, and efficiently rounds the tips of ridges and valleys at the chevron-shaped cut surface of the brush flocked portion, so that the entire flocked portion is evenly and uniformly finished. It is an object of the present invention to provide a tip rounding device capable of significantly improving productivity and having a simple configuration and an inexpensive form.

[0004]

SUMMARY OF THE INVENTION The present invention relates to an apparatus for rounding a brush tip by bringing a polishing member into contact with a bristle tip of a bristle section of a brush. A rod member is rotatably provided with a bar member arranged in accordance with a valley portion of a flocking cut surface comprising a portion, and a polishing rod having a polishing material spirally attached to an outer peripheral surface of the rod member is provided as a polishing member.

In the present invention, the polishing rod is a small-diameter circular circular cross-section, and a plurality of ultra-fine rod members aligned with the bottom of the valley at the tip of the flocking are arranged side by side at a plurality of intervals in the horizontal direction.
The abrasive member is provided on a spiral rod which is twisted in different directions in the forward and reverse directions on the outer periphery of the rod member, and is arranged so as to be alternately driven to rotate in different directions. Furthermore, in the present invention, a plurality of the polishing rods are arranged in parallel along the transporting direction of the brush to face the tip of the flocked portion of the brush,
The outer peripheral polishing surface of each polishing rod is brought into contact with the tip of the flocking portion in accordance with the valley portion of the flocking portion.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In an embodiment of the present invention, a cut surface of a flocked portion of a brush is pressed against a polishing rod which rotates in parallel, and moves from one end to the other along the axial direction of the polishing rod. The tip of the hair is polished to round the tip,
A rod member is rotatably arranged in accordance with a valley portion of a flocking cut surface formed of a crest portion and a valley portion formed at the tip of the flocking portion, and an abrasive is spirally attached to an outer peripheral surface of the rod member. By disposing the polishing rod as a polishing member, it is possible to perform threading polishing with the polishing rod of the rotating grinder, and to efficiently perform the rounding operation of the tip of the brush, and to ensure that the polishing rod is applied to the valley of the brush. Polishing brush tips with valleys can be performed uniformly. In particular, a spiral rod that has a small diameter circular cross section as a polishing rod, and that is formed by arranging ultra-fine rod members aligned with the bottom of the valley at the tip of the flocking at a plurality of intervals in the horizontal direction and twisting around the rod member in different directions in opposite directions. Since the brush is provided with an abrasive and is arranged so as to rotate alternately in different directions, it is also possible to easily round the tip of the concave portion of the brush valley portion, and it is also possible to perform the Threading is applied to make the tip round and uniform, which can contribute to quality improvement.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. 1 and 2. In this embodiment, a brush member is brought into contact with a bristle tip of a flocked portion B of a brush A to grind the bristles. Flocked part B
A rod member 1 is rotatably provided in accordance with a valley portion of a flocking cut surface formed of a crest portion and a valley portion formed at the tip of the rod member, and an abrasive material 2 is provided on the outer peripheral surface of the bar member 1, that is, a spiral rod. The polishing bar 3 is provided by coating or spirally attaching a polishing grindstone.

The polishing rod 3 is an ultra-fine rod member 1 having a small diameter and a circular cross section and adapted to the bottom of the valley at the tip of the flocking. The polishing rod 3 is arranged in parallel at a plurality of intervals in the horizontal direction. The grinding material is provided with the abrasive material 2 in a twisted helical shape, and is arranged so as to be alternately driven to rotate in a different direction by a gear transmission mechanism, and the grinder surface of the abrasive material 2 is pressed against the hair tips from different directions by the movement of the brush A. Is to be applied.

In this case, a gear 4 is attached to the rod member 1 of the polishing rod 3.
And a transmission mechanism consisting of a pulley 5 and a belt 6 connected to a motor 7 to form peaks and valleys with a large number of polishing rods 3 rotating forward and backward with respect to each other. The grinded surface corresponds to the flocked portion B of the brush A. Further, instead of the polishing rod 3 rotating alternately in the forward and reverse directions, the sprocket can be driven in the same rotation by chain driving. Further, the abrasive material 2 is formed in a spiral screw portion in which the one end side and the other end side are twisted in directions opposite to each other, and gives a change in the polishing direction of the bristle tip pressed against the screw portion so as to be even. It is preferred that the tip of the hair be rounded.

A polishing grindstone is used in place of the abrasive material 2 coated on the polishing rod 3, the outer periphery of the spiral rod member 1 is coated, or the outer periphery of the steel member 1 is roughened or diced. A polishing rod may be used as the uneven surface.

Further, the polishing rods 3 are arranged in an arrangement corresponding to the cut face of the flocked portion B of the brush A to make the place where the brush tips come into contact, but the cut faces have different inclination angles. May be combined, or the abutment of the hair tips may be adjusted by the same rotation angle.

In the production line, the brush handle of the brush A attached to the holder (not shown) is moved by a conveyor such as a transfer belt to move the flocking portion B to the rotating polishing rod 3.
The tip of the brush A is polished and rounded by the polishing rod 3 by passing the brush A in contact therewith. A brush holding or holding mechanism is often provided, and the generated abrasive powder is removed by suction so as not to pollute the working environment. In this case, the movement of the brush A is not limited to being transient, and may be a form in which the brush A is moved by being overlapped or reciprocated.

It is preferable that the moving speed of the brush handle and the rotating speed of the polishing rod 3 are controlled separately to obtain optimum polishing conditions, and that the brush tips are uniformly polished and smooth. Considered to obtain roundness. In addition, the brush handles are arranged as closely as possible in the moving direction, so that the number of brushes to be attached per unit length is increased to improve productivity.

[0014]

According to the present invention, there is provided an apparatus for rounding a brush tip by bringing a polishing member into contact with a bristle tip of a bristle bridging part, wherein the bristle is formed by a crest and a valley formed at the tip of the bristle bridging part. Polishing of a rotating grinder by providing a rod member rotatably provided with a rod member arranged in accordance with the valley of the cut surface, and disposing a polishing rod having a polishing material spirally attached to the outer peripheral surface of the rod member as a polishing member. The thread can be threaded and polished with a rod, so that the tip of the brush can be efficiently rounded.In addition, the polishing rod is securely applied to the valley of the brush, so that the brush tips with peaks and valleys can be uniformly polished. Brush tip rounding device that can efficiently round the tips of the peaks and valleys at the angled cut surface of the brush flocked part, can evenly finish the entire flocked part, and significantly improve productivity. Can be provided in a simple and inexpensive form That.

[Brief description of the drawings]

1A and 1B show a use state of an embodiment of the present invention, wherein FIG. 1A is a plan view thereof, and FIG. 1B is a longitudinal sectional view taken along a line II.

FIGS. 2A and 2B show a use state of the example of FIG. 1, wherein FIG. 2A is a front oblique view and FIG. 2B is a side oblique view.

[Explanation of symbols]

 Reference Signs List 1 bar member 2 abrasive 3 polishing rod 4 gear 5 pulley 6 belt 7 motor A brush B flocking part

Claims (4)

[Claims] 1. An apparatus for rounding a brush tip by bringing a polishing member into contact with a bristle tip of a bristle bridging portion of a brush, wherein the bristle cutting surface formed by a crest and a valley formed at the tip of the bristle bridging portion. A brush tip rounding device comprising a rotatable rod member disposed in accordance with a valley portion, and a polishing rod having a polishing material spirally attached to an outer peripheral surface of the rod member as a polishing member. . 2. The polishing rod according to claim 1, wherein said polishing rod is an ultra-fine rod member having a small diameter and a circular cross section and adapted to a bottom of a valley at the tip of a flocking, and arranged in parallel at a plurality of intervals in a horizontal direction. A brush tip rounding device as described in the above. 3. The polishing rod according to claim 2, wherein the polishing rod is provided with an abrasive on a spiral rod which is twisted in different directions on the outer periphery thereof, and is arranged so as to rotate alternately in different directions. Brush tip rounding device. 4. A plurality of polishing rods are provided in opposition to the tip of a bristle implantation part of the brush, and a plurality of the polishing rods are arranged in parallel along the direction of movement of the brush, and each polishing rod is aligned with a valley of the flocking part. The brush tip rounding device according to claim 2 or 3, wherein the outer peripheral polishing surface of the brush is in contact with the tip of the flocking portion.