WO2022255814A1

WO2022255814A1 - Method for manufacturing toothbrush formed of wood/bamboo material by using laser and product manufactured using same

Info

Publication number: WO2022255814A1
Application number: PCT/KR2022/007835
Authority: WO
Inventors: 윤은수
Original assignee: 주식회사 디오텍코리아
Priority date: 2021-06-04
Filing date: 2022-06-02
Publication date: 2022-12-08
Also published as: KR102382084B1

Abstract

Provided are a method for manufacturing a toothbrush formed of wood/bamboo material by using a laser, and a product manufactured using same. The method for manufacturing a toothbrush according to an embodiment of the present invention comprises: a step of processing bristle-transplanting holes, by a hole processor, in a head portion of the toothbrush formed of a wood material by using one or more laser output devices each outputting a laser to a target point a preset number of times per minute; and a step of transplanting, by a bristle processor, bristles into the processed bristle-transplanting holes. As such, the step of processing the bristle-transplanting holes is carried out by using the laser, and thus, high productivity can be ensured even when toothbrushes are manufactured by using wood/bamboo. Also, the bristle-transplanting holes having various diameters, various shapes, and certain inclinations are processed by adjusting a transport passage, an output intensity, and an output time of the laser without using additional equipment or replacing components, and thus, Momehim intensity of a certain level or greater can be ensured in the quality of the manufactured toothbrush. In addition, by maintaining a distance between a bristle-planting processing means and the surface of the head portion of the toothbrush within a preset range, defective transplanting of bristles can be prevented.

Description

Wood/bamboo material toothbrush manufacturing method using laser and product using the same

The present invention relates to a method for manufacturing a toothbrush and a product using the same, and more particularly, to a method for manufacturing a toothbrush made of wood/bamboo using a laser and a product using the same.

Recently, demand for consumer goods using eco-friendly materials is continuously growing, and various attempts are being made to replace existing plastic materials in this trend.

Specifically, in the case of toothbrushes, there is a growing demand for the development of eco-friendly materials to replace the traditionally used PETRO CHEMICAL synthetic plastic materials such as PP (Polypropylene) / PETG (Polyethylene terephthalate) / TPE (Thermo Plastic Elastomer). It is increasing, and as one of the alternatives, toothbrushes using bamboo/wood materials are gradually increasing production and consumption.

However, in the past, when manufacturing toothbrushes using these bamboo/wood materials, injection molding cannot be stably molded into a standardized mold like plastic materials, and the toothbrush shape must be processed one at a time, so the productivity is low. However, there is a problem that the production cost increases.

Specifically, the existing toothbrush manufacturing method using bamboo/wood materials uses a mechanical drilling method in processing holes for hair tufting for the TUFTING process, which is the most important process in toothbrush manufacturing. However, the location and size of the hole do not reach the same precision as in mold injection molding of conventional plastic materials, so there are frequent production errors and poor hair transplantation in the high-speed (ex. 700-1000 times/min) planting process, which is an important production process afterwards. There are problems that arise.

In addition, in the existing method of manufacturing a toothbrush using bamboo / wood materials, wood residue remains in a state where the wood residue is not completely removed after drilling, which can cause deviation and tilting of the flat line during the subsequent high-speed hair transplanting process, thereby reducing the strength of the brushing and There is a problem that causes defective hair transplantation.

In addition, in the conventional toothbrush manufacturing method using bamboo/wood materials, drilling equipment for toothbrushes capable of drilling 900-1000 times per minute can be used theoretically, but in the case of bamboo, which is the most used material for wooden toothbrushes, the unique Since the grains are oriented in the longitudinal direction, cracks easily occur in the longitudinal grain direction when physical impact is applied, and the actual drilling hole processing speed is only 400-500 times per minute.

The present invention has been made to solve the above problems, and an object of the present invention is to perform a hole processing process for hair transplantation using a laser, even when a toothbrush is manufactured using wood/bamboo as a material, high productivity It is to provide a method of manufacturing a toothbrush capable of securing and a product using the same.

In addition, another object of the present invention is to process hair transplant holes having various sizes of diameters, various shapes and specific inclinations without additional equipment or parts replacement by adjusting the transport path, output intensity and output time of the laser. To provide a toothbrush manufacturing method and a product using the same that can secure a certain Momehim strength among the quality of the toothbrush to be manufactured.

Another object of the present invention is to provide a toothbrush manufacturing method and a product using the same, which can prevent defective hair transplantation by maintaining the distance between the hair transplant processing means and the surface of the head portion of the toothbrush within a predetermined range.

According to an embodiment of the present invention for achieving the above object, a method for manufacturing a toothbrush is made of wood material by utilizing one or more laser output devices that output a hole processing unit toward a target point at a predetermined number of times per minute. Processing a hole for hair transplantation in the head of the toothbrush; and allowing the bristles to be planted in the processed hair transplanting hole by the hair transplant processing unit.

And, in the processing step, by adjusting the transport path of the laser on the head of the toothbrush, it is possible to process hair transplant holes of different sizes on the head of the toothbrush, which is a single object, without additional equipment or replacement of parts.

In addition, the hair transplantation holes processed in different sizes may have a diameter of 1.4 to 1.5 mm for a relatively large transplant hole and a diameter of 2.3 to 2.4 mm for a relatively small transplant hole. .

And the processing step is for hair transplantation of a shape inclined at a predetermined angle or a shape having a predetermined curvature without additional equipment or parts replacement by adjusting the transfer path, output intensity, and output time of the laser on the head of the toothbrush. Holes can be machined.

Also, in the processing step, the inclination angle or curvature of the hair transplantation holes to be processed may be formed to be different from each other by adjusting the output intensity and output time of the laser according to the position or row in which the hair transplantation holes are arranged.

In the processing step, in order to prevent the bristles planted in the hair transplanting hole from being separated, the diameter of the hair transplanting hole may be formed to decrease as the diameter of the hair transplantation hole goes from the entrance portion of the hair transplant hole to the inside of the hair transplant hole.

In addition, the hair transplant hole is processed so that the diameter of the hair transplant hole decreases as the diameter of the hair transplant hole goes from the entrance of the hair transplant hole to the inside of the hair transplant hole. strength can be increased.

In the processing step, the measurement unit may measure the thickness of the head portion of the toothbrush before being supplied to the hair transplant processing unit for processing the hair transplant hole.

In addition, in the toothbrush manufacturing method according to an embodiment of the present invention, when the processing step of the toothbrush in which the thickness of the head portion is measured is completed, the head portion of the toothbrush is a point for performing the hair transplant step at the point where the processing step is performed. Further comprising a step of moving to; wherein, the holder unit maintains a distance between the hair transplanting processing unit performing the hair transplanting step and the surface of the head within a predetermined range, so that a constant and stable hair transplanting step can be performed , When the processing step of the toothbrush at which the thickness of the head part is measured is completed and the toothbrush is moved to the point for performing the hair transplanting step, the Z-axis is moved, but the Z-axis movement range of the head part is determined according to the result of measuring the thickness of the head part can be made

And the hair transplant processing unit is provided with a sensor that detects the position of the reference hole for hair transplantation in the head of the toothbrush. At this time, in the hair transplant step, when the hair transplant processing unit detects the position of the reference hole for hair transplant through the sensor, The position of the reference hole for hair transplantation is aligned with the tufting tool provided in the hair transplantation processing unit, so that the hair transplantation is possible in the correct position regardless of the shape processing error of the head of the toothbrush, the holder part departs from the preset position It can be moved along the X and Y axes as much as the coordinate value.

In addition, the processing step utilizes a plurality of laser output devices to process at least one of the logo, brand, and design on the handle of the toothbrush by using one or more laser output devices separately provided while processing the hair transplant hole in the head portion of the toothbrush. It is possible to perform an operation of engraving one and an operation of engraving an eye mark that can identify a reference hole for hair transplantation around a reference hole for hair transplantation of the toothbrush head.

In the processing step, when the tufting tool provided inside the hair-transplantation processing unit plants bristles using a flat line, the angle of the flat line may have an inclination of 25 degrees relative to the longitudinal direction of the toothbrush handle.

On the other hand, a product according to an embodiment of the present invention for achieving the above object is manufactured by the above-described toothbrush manufacturing method.

As described above, according to the embodiments of the present invention, high productivity can be secured even when a toothbrush is manufactured using wood/bamboo as a material by performing a hole processing process for hair transplantation using a laser.

In addition, according to the embodiments of the present invention, hair transplantation holes having various sizes of diameters, various shapes, and specific inclinations can be formed without additional equipment or parts replacement by adjusting the laser transport path, output intensity, and output time. By processing, it is possible to secure a certain or more Momehim strength among the quality of the toothbrush to be manufactured.

And according to the embodiments of the present invention, by maintaining the distance between the hair processing unit and the surface of the head portion of the toothbrush within a predetermined range, it is possible to prevent hair transplant failure.

In addition, according to embodiments of the present invention, hair transplantation defects can be prevented by aligning the hair transplantation holes so that hair can be accurately planted in the hair transplantation holes regardless of shape processing errors of the toothbrush head.

1 and 2 are views provided for explanation of an apparatus for manufacturing a toothbrush made of wood/bamboo using a laser according to an embodiment of the present invention;

3 to 4 are views illustrating a holder portion and a hair transplant processing portion according to an embodiment of the present invention;

5 is a diagram provided for explanation of a method of manufacturing a toothbrush made of wood/bamboo using a laser according to an embodiment of the present invention;

6 is a view illustrating a state in which a hair transplant hole having a shape inclined at a predetermined angle or a shape having a predetermined curvature is processed according to an embodiment of the present invention;

7 is a view illustrating a state in which hair implantation holes of different sizes are processed in the head portion of a toothbrush, which is a single object, according to an embodiment of the present invention;

8 is a state in which the hair transplantation hole is processed at a certain inclination in order to secure a predetermined or higher Momehim strength and prevent the bristles implanted in the hair transplant hole from being separated according to an embodiment of the present invention. This exemplified drawing,

9 is a view illustrating a tensile test report of a toothbrush manufactured according to the toothbrush manufacturing apparatus and method according to the present embodiment;

10 is a diagram illustrating a state in which hair implantation holes are processed at different inclinations in the head portion of a toothbrush, which is a single object, according to an embodiment of the present invention;

11 is a view illustrating a state in which a hair transplant hole is processed according to the curvature of the toothbrush when the toothbrush is formed in a shape having a predetermined curvature according to an embodiment of the present invention; and

12 is a view provided for explanation of a process in which the distance between the hair transplant processing unit and the surface of the head portion of the toothbrush is maintained within a predetermined range, according to an embodiment of the present invention; and

13 is a diagram provided for explanation of a process for solving the problem of hair implantation defects caused by deviations in the shape processing of the head portion of the toothbrush according to an embodiment of the present invention.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

1 and 2 are diagrams provided for explanation of an apparatus for manufacturing a toothbrush made of wood/bamboo using a laser according to an embodiment of the present invention, and FIGS. 3 and 4 are a holder unit according to an embodiment of the present invention. 160 and the hair transplant processing unit 170 are illustrated.

An apparatus for manufacturing a toothbrush made of wood/bamboo using a laser according to the present embodiment (hereinafter, collectively referred to as a 'toothbrush manufacturing apparatus') utilizes a laser output device to perform a hair transplant hole processing process, Even when a toothbrush is manufactured using bamboo as a material, high productivity can be secured.

In addition, the present manufacturing apparatus processes hair transplant holes 11 having various sizes of diameters, various shapes, and specific inclinations without additional equipment or parts replacement by adjusting the laser transport path, output intensity, and output time. In this way, it is possible to secure a certain or more Momehim strength among the quality of the toothbrush to be manufactured, and to keep the distance between the hair processing unit and the surface of the head of the toothbrush 10 within a predetermined range to prevent defective hair transplantation. It can be prevented.

To this end, the present manufacturing apparatus includes an input unit 110, a first transfer unit 120, a hole processing unit 130, a robot device 140, a second transfer unit 150, a holder unit 160, a hair transplant processing unit 170, a measurement unit 180, and a control unit 190 may be included.

The input unit 110 is provided to allow the toothbrush handle 10 to be put into the first transfer unit 120, and the first transfer unit 120 and the second transfer unit 150 may each be provided with a conveyor belt.

Specifically, the first transfer unit 120 may move the toothbrush head 10 introduced through the input unit 110 and deliver it to the hole processing unit 130 .

The robot device 140 is provided with a robot arm (not shown) capable of grabbing and moving the toothbrush 10, and the toothbrush 10 where the processing operation of processing the hair implantation hole 11 in the head of the toothbrush 10 is completed. can be transferred to the second transfer unit 150.

The second transfer unit 150 may transfer the toothbrush 10 transferred by the robot device 140 to the holder unit 160 .

The first transfer unit 120, the second transfer unit 150, and the robot device 140, when the processing step of the toothbrush 10 in which the thickness of the head portion is measured is completed, the head portion of the toothbrush 10 is processed. It can be moved from the performed point to the point for performing the hair transplanting step.

The hole processing unit 130 is equipped with one or more laser output devices that output toward a target point at a predetermined number of times per minute, and performs a processing step of processing a hole 11 for hair transplantation in the head portion of the toothbrush 10 prepared to do

Specifically, the hole processing unit 130 may process the hair transplantation hole 11 by outputting laser toward a target point at a preset number of times per minute (eg, 700 to 1000 times/minute).

The holder part 160 is provided to fix the toothbrush 10 made of bamboo or non-bamboo wood material.

Specifically, in the holder unit 160, as illustrated in FIG. 2, the rotating shaft is axially coupled to a driving motor (not shown) provided separately, so that the rotating shaft can rotate when the driving motor is driven, and the outer side of the rotating shaft can be rotated. A fixing member capable of fixing the head portion of one or more toothbrushes 10 may be formed accordingly.

Each fixing member fixes the head portion of the toothbrush 10, and when the rotating shaft rotates, it is rotated to move the fixed toothbrush and adjust the position of the toothbrush 10.

For example, the holder part 160 extends from the point where the toothbrush handle 10 is fixed (point ①) to the point where the hair transplanting step of planting the bristles into the hair transplanting hole 11 is performed (point ②), the head portion. can be rotated.

Further, the holder unit 160 may be moved based on at least one of the X, Y, and Z axes by three independent servo motors (not shown) driven in conjunction with each of the X, Y, and Z axes.

For example, the holder unit 160 maintains a distance between the hair transplant processing unit 170 performing the hair transplant step and the surface of the head within a predetermined range, so that a constant and stable hair transplant step can be performed. When the processing step of the toothbrush whose thickness is measured is completed and the toothbrush is moved to the point where the hair transplant step is performed, the Z-axis is moved, but the Z-axis movement range of the head is determined according to the result of measuring the thickness of the head. can

The hair transplanting processing unit 170 is provided to perform a hair transplanting step of planting the bristles 10 in the hair transplanting hole 11 processed by the hole processing unit 130 .

In addition, the hair transplantation processing unit 170 may be provided with a sensor (not shown) for detecting the position of a reference hole for hair transplantation in the head of the toothbrush 10 .

In addition, in the hair transplant processing unit 170, when a tufting tool is provided inside and the bristles 10 are planted using a flat line, the angle of the flat line is 25 degrees relative to the longitudinal direction of the toothbrush handle 10 can have

On the other hand, the measuring unit 180, for processing the hair transplant hole 11, before being supplied to the hole processing unit 130 or before being put into the hair transplant processing unit 170, the head of the toothbrush 10 at an intermediate stage The thickness of the part can be measured.

The controller 190 is provided to control the components of the present manufacturing apparatus.

Specifically, when the processing step of the hair transplant hole 11 is completed by the hole processing unit 130, the control unit 190 transmits a control signal to a drive motor (not shown) connected to the holder unit 160 to , The holder unit 160 may control the head portion of the toothbrush 10 to be moved based on at least one of the X axis, the Y axis, and the Z axis, while holding the head portion.

At this time, the control unit 190 receives the result of measuring the thickness of the head portion through the measurement unit 180, and when the processing step of the toothbrush in which the thickness of the head portion is measured is completed, the holder unit 160 moves the head portion Controlled to move the Z-axis, but by determining the Z-axis movement range of the head according to the thickness measurement result of the head, the distance between the hair transplant processing unit 170 performing the hair transplanting step and the surface of the head is a preset range It can be maintained within, and through this, it is possible to perform a constant and stable transplanting step.

That is, the control unit 190 determines the movement value of the holder unit 160 according to the result of measuring the thickness of the head portion, and transmits the determined result to the drive motor connected to the holder unit 160 to determine the movement range of the head portion. can decide

In addition, when the hair transplant processing unit 170 detects the location of the reference hole for hair transplantation through the provided sensor, the control unit 190 determines the location of the detected reference hole for hair transplantation provided in the hair transplant processing unit 170 ( Tufting Tool), so that hair can be planted in an accurate position regardless of shape processing errors of the head of the toothbrush 10, the X-axis and/or It can be moved along the Y-axis.

On the other hand, the present manufacturing apparatus utilizes a plurality of laser output devices provided separately, while processing the hair transplant hole 11 in the head portion of the toothbrush 10, by utilizing one or more laser output devices separately provided, Carrying out the work of engraving at least one of the logo, brand, and design on the handle and the work of engraving the eye mark 12 that can identify the reference hole for hair transplantation around the reference hole for hair transplantation of the head of the toothbrush 10 can do.

5 is a view provided to explain a method of manufacturing a toothbrush made of wood/bamboo using a laser according to an embodiment of the present invention.

A method of manufacturing a toothbrush made of wood/bamboo using a laser according to the present embodiment (hereinafter collectively referred to as 'toothbrush manufacturing method') may be performed by the toothbrush manufacturing apparatus described above with reference to FIGS. 1 to 4 .

Referring to FIG. 5 , in the toothbrush manufacturing method, the thickness of the head portion of the toothbrush 10 may be measured through the measuring unit 180 (S510).

Through the hole processing unit 130, a hole 11 for hair transplantation can be processed in the head portion of the toothbrush 10 (S520), and when the processing of the hole 11 for hair transplantation is completed, the toothbrush handle 10 is 1 is supplied to the holder unit 160 through the transfer unit 120, the robot device 140, and the second transfer unit 150, and the head portion of the toothbrush 10 may be fixed by the holder unit 160 ( S530).

At this time, the movement range of the holder unit 160 is determined by the control unit 190 according to the result of measuring the thickness of the head unit, and the determined result is transmitted to the drive motor connected to the holder unit 160 to transmit the Z-axis of the head unit. By determining the movement range, the head portion can be moved in the Z axis (S540).

In addition, when the hair implantation processing unit 170 detects the position of the reference hole for hair transplantation, the holder unit 160 may move the toothbrush head in the X-axis and/or Y-axis so as to align with the tufting tool (S550). ).

Finally, the manufacturing process of the wood/bamboo toothbrush can be completed by allowing the bristles to be planted in the processed hair transplanting hole 11 through the hair transplant processing unit 170 (S560).

6 is a view illustrating a state in which a hair transplant hole 11 having a shape inclined at a predetermined angle or a shape having a predetermined curvature is processed according to an embodiment of the present invention.

Referring to FIG. 6 , the toothbrush manufactured according to the toothbrush manufacturing apparatus and method may have a hair transplant hole 11 having a shape inclined at a predetermined angle or a shape having a predetermined curvature.

Specifically, in the present toothbrush manufacturing method, in the processing step of the hair transplant hole 11, the transfer path, output intensity, and output time of the laser to the head of the toothbrush 10 are adjusted, without additional equipment or parts replacement. , the shape 11b, 11c inclined at a predetermined angle or the shape 11a having a predetermined curvature, the hair transplant hole 11 can be processed.

In addition, the hole processing unit 130, as illustrated in FIG. 4, adjusts the transport path, output intensity, and output time of the laser according to the position or row in which the hair transplant holes 11 are arranged, so that the hair transplant holes processed The inclined angle or curvature of (11) may be formed differently.

7 is a view illustrating a state in which hair implantation holes 11 of different sizes are processed in the head portion of a toothbrush 10, which is a single object, according to an embodiment of the present invention.

Referring to FIG. 7, the toothbrush manufactured according to the present toothbrush manufacturing apparatus and method utilizes a laser in the head portion of the toothbrush 10 to process the hole 11 for hair transplantation. By adjusting, it is possible to process hair transplant holes 11 of different sizes in the head portion of the toothbrush 10, which is a single object, without additional equipment or replacement of parts.

That is, the hole processing unit 130 adjusts the transport path of the laser to process hair transplant holes 11 of different sizes in the head portion of the toothbrush 10, which is a single object, without additional equipment or replacement of parts. At this time, the hair transplantation hole 11 processed into different sizes is relatively small, and the hair transplantation hole 11d is disposed in the middle, but the relatively small hair transplantation hole 11d A diameter of 1.4 to 1.5 mm is formed, and the relatively large hole for transplantation (11e) is disposed on both sides of the relatively small hole for transplantation (11d), but the hole for transplantation is formed relatively large. (11e) may be formed with a diameter of 2.3 to 2.4 mm.

This is because, in the case of the relatively large hair transplant hole 11e disposed on the outside, more bristles 10 can be planted, and as illustrated in FIG. 6, the diameter of the hair transplant hole 11e, It is processed so that the size of the diameter decreases as it goes inside the hole 11 for hair transplantation at the entrance of the hole 11 for hair transplantation, so that when inserting the flat wire, the increase in the contact resistance area of the flat wire is ensured so that the embedding strength is increased And, it is possible to prevent the bristles planted in the hair transplanting hole 11 from being separated.

That is, in the case of the toothbrush manufactured according to the present toothbrush manufacturing apparatus and method, in the case of the relatively large formed hole 11e disposed on the outside, the diameter is, at the entrance of the hole 11 for hair transplantation ( 11), the size of the diameter decreases as it goes inside, and in the case of the relatively small hole 11d disposed on the inner side (central part), the hair transplant hole 11d is processed vertically and disposed on the outside It is possible to prevent separation of bristles planted in (11e).

For another example, the toothbrush manufactured according to the toothbrush manufacturing apparatus and method may have relatively large hair transplant holes 11 disposed on the inside and relatively small hair transplant holes formed on the outside.

8 shows that, according to an embodiment of the present invention, the hair transplantation hole 11 is provided to secure a predetermined or more Momehim strength and prevent the bristles implanted in the hair transplantation hole 11 from being separated. A figure processed with a certain inclination is illustrated, and FIG. 9 is a diagram illustrating a tensile test report of a toothbrush manufactured according to the toothbrush manufacturing apparatus and method according to this embodiment.

Referring to FIG. 8, in the toothbrush manufactured according to the present toothbrush manufacturing apparatus and method, the diameter of the hair transplant hole 11 goes into the inner portion of the hair transplant hole 11 from the entrance of the hair transplant hole 11. By being formed so that the size of the diameter is small, it is possible to prevent the bristles planted in the hair transplanting hole 11 from being separated.

Specifically, for example, the hole processing unit 130 has a lower fixing force of the hair planted in the hair transplant hole 11 than the plastic material due to the nature of the material, so to prevent the hair from being separated, the hair transplant hole 11 It is possible to process (create) the hair transplantation hole 11 formed so that the size of the diameter decreases as the diameter goes inside the hair transplantation hole 11 at the entrance of the hair transplantation hole 11 .

At this time, when the diameter of the entrance portion of the hair transplant hole 11 is 1.7 mm, the diameter of the inner bottom of the hair transplant hole 11 is formed to be 1.6 mm or 1.5 mm, as illustrated in FIG. 7, ( In the National Institute of Standards and Technology under the Ministry of Trade, Industry and Energy of Korea), it is possible to secure a force strength of 15 N or more required for toothbrush products.

10 is a view illustrating a state in which hair implantation holes 11 are processed at different inclinations in the head portion of a toothbrush 10, which is a single object, according to an embodiment of the present invention.

Referring to FIG. 10 , toothbrushes manufactured according to the present toothbrush manufacturing apparatus and method may have different inclinations of hair implantation holes 11 processed in the head portion of a single toothbrush 10 .

That is, the hole processing unit 130 may adjust the angle of the laser so that the inclination of the hair transplantation hole 11 processed in the head portion of the toothbrush 10, which is a single object, is formed differently from each other.

Specifically, the hole processing unit 130 adjusts the angle of the laser so that the inclination of the hair transplant hole 11 processed in the head portion of the toothbrush 10, which is a single object, is inclined at a constant angle from the vertical of the head surface The formed hole 11g for hair transplantation and the hole 11f for hair transplantation formed vertically on the surface of the head may be respectively processed.

When manufacturing a toothbrush using a bamboo material, cracks occur in two processes. The first is the case of processing the hair transplant hole 11 by mechanical drilling.

In this case, when mechanical drilling is performed at a rate of 700 to 1000 times per minute, physical impact continuously occurs in the process of drilling the hair transplant hole 11 and digging out the contents, resulting in cracks due to bamboo grain.

For this reason, in the case of mechanical drilling, when actually manufacturing a bamboo toothbrush, a speed of about 400 to 500 times per minute can be used, which causes a decrease in productivity.

However, when the hole 11 for hair transplantation is processed using a laser, physical impact does not occur, so that the hole processing operation can be performed at a relatively high speed compared to the case of mechanical drilling.

In addition, in the toothbrush manufacturing apparatus and method according to an embodiment of the present invention, the toothbrush bristles (head portion of the toothbrush 10) and the flat line are planted in the hair transplantation hole 11 so that the angle is tilted at a maximum of 25 degrees from the horizontal during planting. By intentionally setting the device (Tufting Head), the angle at which the flat line is driven into the hair transplant hole 11 is avoided as much as possible to match the angle of the grain of the bamboo material in some cases, so that the bamboo material is unnecessarily cracked. fading can be prevented.

11 is a view illustrating a state in which a hair transplant hole 11 is processed according to the curvature of the toothbrush when the toothbrush is formed in a shape having a predetermined curvature according to an embodiment of the present invention.

Referring to FIG. 11 , when a toothbrush manufactured according to the present toothbrush manufacturing apparatus and method is formed in a shape having a predetermined curvature, a hair transplant hole 11 having the same depth according to the curvature of the toothbrush may be processed.

That is, the hole processing unit 130, when the toothbrush is formed in a shape having a predetermined curvature, adjusts the output intensity along the laser transport path to process the hair transplant hole 11 of the same depth according to the curvature of the toothbrush can be made

12 is a view provided for explanation of a process in which the distance between the hair transplant processing unit and the surface of the head portion of the toothbrush 10 is maintained within a predetermined range, according to an embodiment of the present invention.

In the existing method of manufacturing a toothbrush using bamboo/wood materials, due to the nature of wood, a problem of defective hair transplantation may occur due to variation in the thickness of the hair corresponding to the portion where hair is planted.

Specifically, in order to make a shape of wood, it is basically necessary to cut the surface (planning), and in this process, there is a limit to having precise thickness deviations like in plastic molding.

That is, as illustrated in FIG. 12B, when the thickness is smaller than the reference thickness, the tufting tool moves away from the dental table head surface, causing a problem that does not allow hair to be tufted to a sufficient depth. A separation problem (retention force shortage problem) may occur, and as illustrated in FIG. 12c, when the thickness is greater than the standard thickness, the hair transplanting tool collides with the tooth implant head surface, causing damage and hair transplantation to the hair transplant tool and the dental tooth head surface. Defective problems arise.

That is, the best way is to make the surface of the head of the toothbrush 10 have a certain thickness and manage it within the error range (+-0.1mm) of the preset thickness so that hair transplant defects do not occur. Due to the nature of wood that needs to be processed in thickness in this way, it is difficult to manage within this error range.

Therefore, in the toothbrush manufacturing method according to the present embodiment, the measurement result of the thickness of the head portion is received through the measuring unit 180, and when the processing step of the toothbrush in which the thickness of the head portion is measured is completed, the control unit 190 Through, the holder unit 160 is controlled to move the head portion in the Z axis, but the Z axis movement range of the head portion is determined according to the thickness measurement result of the head portion, regardless of the thickness of the toothbrush head portion. It is possible to ensure that the distance between the hair transplant processing unit 170 and the surface of the head to be maintained within a predetermined range.

13 is a diagram provided for explanation of a process for solving the problem of defective hair transplantation caused by deviations in shape processing of the head portion of the toothbrush 10 according to one embodiment of the present invention.

In the existing method of manufacturing a toothbrush using bamboo/wood materials, a problem of defective hair transplantation may occur due to deviations in shape processing of the head portion of the toothbrush 10.

Specifically, bamboo/wood materials basically require a side shape shaping operation (shaping) to make a shape, and in this process, there is a limit to having precise shape errors like in plastic molding.

As illustrated in FIG. 13 , when processing the shape of the head of the toothbrush 10 , the size of the head may be smaller or larger than a predetermined standard value during the shape processing process.

For example, as illustrated in FIG. 13B , when processed larger than a preset standard value, less is placed in the holder portion 160 for fixing the head of the toothbrush 10, so that the positions of all hair transplant holes are higher than the preset standard value on the X axis. Problems created by moving further in the positive direction may occur.

In this case, when the hair transplantation hole 11 is processed along the feed path of the laser preset by inputting the X and Y coordinates, and the hair transplantation processing unit 170 is set to perform hair transplantation at the same coordinate value, the direction of the X axis An error in hair transplantation occurs as much as less is entered along the , and defective hair transplantation occurs. Conversely, as illustrated in 13c, even if the processing is smaller than the predetermined standard value, a hair transplant error may occur in the negative direction of the X axis, resulting in defective hair transplant.

Therefore, in the toothbrush manufacturing method according to the present embodiment, in order to prevent such a hair transplant error, as described above, the hair transplant processing unit 170 detects the position of the reference hole for hair transplant in the head portion of the toothbrush 10 A sensor (not shown) may be provided.

Specifically, when the hair transplantation processing unit 170 detects the position of the reference hole for hair transplantation through the sensor, the position of the reference hole for hair transplantation detected is set as the starting point of the transfer path of the holder unit 160, so that the toothbrush 10 Regardless of the shape processing error of the head part, it is possible to make hair transplantation possible in an accurate position.

That is, in the toothbrush manufacturing method according to the present embodiment, when a reference hole for hair transplantation is created in the head portion of the toothbrush 10 in the process of processing the hole 11 for hair transplantation, and the position of the reference hole for hair transplantation is detected through a sensor. , Adjust the position of the X-axis and / or Y-axis of the holder part 160 for fixing the toothbrush so that the standby hair transplant processing unit 170 is located in the reference hole for hair transplantation and set as the starting point of the transfer path. can

In addition, at this time, the reference hole for hair transplantation may be formed at the bottom of the first row of the holes 11 for hair transplantation generated in the head part, and at the same time, the depth of the hole is relatively deeper than that of other holes 11 for hair transplantation. , The sensor may be implemented as a distance measurement sensor capable of measuring the depth of the bottom surface of the hole, and the sensor may identify a reference hole for hair transplantation by comparing the depth of each hole 11 for hair transplantation.

For another example, the reference hole for hair transplantation may be formed at the bottom of one row of the holes 11 for hair transplantation generated in the head part, and at the same time, the sensor is implemented as an artificial intelligence-based vision inspection sensor, etc. A reference hole for hair transplantation may be identified by comparing images of the hole 11 for hair transplantation.

As another example, as illustrated in FIG. 13D, in the laser hole processing step, an eye mark 12 that can be identified as a reference hole for hair transplantation is engraved around a reference hole for hair transplantation, and a sensor for identifying the eye mark is applied to the hair transplant part. By implementing, it is possible to identify a reference hole for hair transplantation.

Through this, all other hair transplanting holes 11 can be hair transplanted based on the position of the reference hole for hair transplantation, and thus hair transplantation can be performed at an accurate position regardless of the shape processing error of the head of the toothbrush 10.

In addition, as illustrated in FIG. 13E or 13F, when processing the shape of the head of the toothbrush handle 10, when the upper shape is processed to be larger than the lower shape, or in the opposite case, the length of the head of the toothbrush handle 10 When the top and bottom are asymmetrically processed around the center line, deviation occurs not only in the X axis but also in the Y axis.

Even in this case, the reference hole for hair transplantation is identified in the same way, and the holder part 160 automatically moves in the X-axis and / or Y-axis so that the hair transplantation process can be performed based on the identified reference hole for hair transplantation, The reference hole may be aligned with the planting device.

Although the preferred embodiments of the present invention have been shown and described above, the present invention is not limited to the specific embodiments described above, and is commonly used in the technical field to which the present invention pertains without departing from the gist of the present invention claimed in the claims. Of course, various modifications are possible by those who have knowledge of, and these modifications should not be individually understood from the technical spirit or prospect of the present invention.

Claims

processing a hole for hair transplantation in a head portion of a toothbrush made of a wood material by using one or more laser output devices that are output toward a target point at a predetermined number of times per minute by a hole processing unit; and

A toothbrush manufacturing method comprising the step of allowing bristles to be planted in the processed hair transplanting hole by the hair transplant processing unit.
The method of claim 1,

The processing step is

Toothbrush manufacturing method, characterized in that by adjusting the transfer path of the laser on the head of the toothbrush, to process hair transplant holes of different sizes in the head of the toothbrush, which is a single entity, without additional equipment or replacement of parts.
The method of claim 2,

The hair transplant holes processed in different sizes,

The diameter of the relatively large hair transplant hole is formed to be 1.4 to 1.5 mm,

Toothbrush manufacturing method, characterized in that the diameter of the hair transplant hole formed relatively small is formed to 2.3 to 2.4mm.
The method of claim 1,

The processing step is

By adjusting the transfer path, output intensity and output time of the laser on the head of the toothbrush, it is possible to process a hair transplant hole of a shape inclined at a predetermined angle or a shape having a predetermined curvature without additional equipment or replacement of parts. Toothbrush manufacturing method characterized by.
The method of claim 4,

The processing step is

A method of manufacturing a toothbrush, characterized in that the inclination angle or curvature of the hair transplantation holes to be processed is formed differently from each other by adjusting the output intensity and output time of the laser according to the position or row in which the hair transplantation holes are arranged.
The method of claim 1,

The processing step is

In order to prevent the bristles planted in the hair transplant hole from being separated, the diameter of the hair transplant hole is formed so that the size of the diameter becomes smaller as it enters the inner portion of the hair transplant hole from the entrance of the hair transplant hole. Toothbrush manufacturing method, characterized in that.
The method of claim 6,

The hair transplant hall,

The diameter of the hair transplant hole is processed so that the diameter decreases as the diameter of the hair transplant hole goes from the entrance of the hair transplant hole to the inside of the hair transplant hole. Toothbrush manufacturing method to be.
The method of claim 1,

The processing step is

A toothbrush manufacturing method characterized in that the measurement unit measures the thickness of the head portion of the toothbrush before supplying the hair to the hair transplantation processing unit for processing of the hair transplantation hole.
The method of claim 8,

When the processing step of the toothbrush in which the thickness of the head portion is measured is completed, the step of moving the head portion of the toothbrush from the point where the processing step is performed to the point for performing the hair transplant step; further comprising,

holder part,

The toothbrush processing step of measuring the thickness of the head portion is completed so that the distance between the hair transplantation processing unit performing the hair transplantation step and the surface of the head portion is maintained within a predetermined range, so that a constant and stable hair transplantation step can be performed. When moved to the point for performing the hair transplant step, the Z-axis is moved, but the toothbrush manufacturing method characterized in that the Z-axis movement range of the head part is determined according to the thickness measurement result of the head part.
The method of claim 1,

The hair transplant processing part,

A sensor is provided to detect the position of the reference hole for hair transplantation in the head of the toothbrush,

The transplantation stage is

When the hair transplant processing unit detects the position of the reference hole for hair transplantation through a sensor, the position of the detected reference hole for hair transplantation is aligned with the tufting tool provided in the hair transplant processing unit, and correlates with the shape processing error of the head of the toothbrush. A method of manufacturing a toothbrush, characterized in that the holder part moves in the X and Y axes by the coordinate values deviated from the preset position so that hair can be planted in an accurate position without
The method of claim 1,

The processing step is

Engraving at least one of logo, brand, and design on the handle of the toothbrush by using one or more laser output devices separately prepared while processing a hair transplant hole on the head of the toothbrush using a plurality of laser output devices, and A method of manufacturing a toothbrush, characterized by performing an operation of imprinting an eye mark that can identify a reference hole for hair transplantation around a reference hole for hair transplantation of a toothbrush head portion.
The method of claim 1,

The processing step is

When the tufting tool provided inside the hair-transplantation processing unit plants bristles using a flat line, the angle of the flat line has an inclination of 25 degrees relative to the longitudinal direction of the toothbrush handle. Toothbrush manufacturing method.
A product produced by the method of manufacturing a toothbrush according to claim 1 .