METHOD FOR MANUFACTURING DENTAL PAPER TIPS
Patent Information
- Authority / Receiving Office
- MX · MX
- Patent Type
- Patents
- Current Assignee / Owner
- DIADENT GROUP INT
- Filing Date
- 2022-07-07
- Publication Date
- 2026-05-19
Smart Images
Figure MX434037B0
Abstract
Description
DENTAL PAPER POINT MANUFACTURING METHOD FIELD OF INVENTION The present invention relates to a method for manufacturing paper points, and more particularly, to a method for manufacturing dental paper points. BACKGROUND OF THE INVENTION Unlike the exterior, inside the tooth, which is the hardest tissue in the human body, there is a soft tissue rich in nerves and blood vessels, called the pulp. The pulp extends to the root of the tooth, i.e., the root apex, and is surrounded by a microspace called the root canal. The pulp in the root canal is connected to the blood vessels and nerves in the alveolar bone surrounding the tooth root through a narrow opening (apical foramen) at the root apex. Therefore, root canal treatment requires a paper point, a thin, needle-like instrument. Here, the paper point is made into a long isosceles triangle shape by cutting and rolling hardened paper, and a dental paper point is used for the aforementioned root canal treatment. FIGURE 1 is a front view of a paper point, and FIGURE 2 is a flow diagram of a method for manufacturing a paper point in the related art. Hereinafter, the method will be described with reference to FIGURE 1 and FIGURE 2. First, a paper point 1 has several standards, and has different colors according to each standard. For example, the colors can be divided into white if the standard is 15, yellow if the standard is 20, red if the standard is 25, blue if the standard is 30, green if the standard is 35, purple if the standard is 40, etc. As such, the color marked to identify the standard is called the standard check color, and referring to FIGURE 1, a standard check color 10 is marked on the upper end of the paper tip, which is a handle part. Furthermore, in the center of the paper point 1, a millimeter line 20 is indicated that can estimate the depth of the tooth root. A lower end 30 of the paper point 1 has a thin and long shape to be in contact with the root apex of the tooth through the root canal, and the millimeter line 20 is indicated at a predetermined distance from the lower end tip 30 of the paper point 1, so that it is possible to check how deep the paper point is inserted from the tooth root. Here, the predetermined distance may be 18 mm, 19 mm, 20 mm, 22 mm and 24 mm. Meanwhile, referring to FIGURE 2, the paper point 1 may be manufactured through a plurality of steps. First, an operator cuts the paper to form the paper tip into sheets of paper according to a position where the standard check color is printed (S10). The operator then precisely aligns the cut sheet paper, attaches the sheet paper to the drawing paper, and then the drawing paper to a punch guide (S20). The fixed sheet paper is punched with a punch die and punch die (S30). Specifically, after finely aligning the cut side of the sheet paper, 20 to 30 sheets of paper are stapled to the drawing paper, and then the fixed sheet paper is attached to the punch guide. Here, the punch guide refers to a tool for securing the sheet paper and guiding the punching position so that the punch and punch die can easily punch the sheet paper. The operator then moistens the perforated sheet paper with water, then rolls and dries it (S40). Once drying is complete, the paper point is produced by printing millimeters on the dried sheet paper (S50). On the other hand, a conventional paper point manufacturing method involves printing millimeters on the sheet paper after the rolled sheet paper has dried. At this point, during the process of placing the dried sheet paper in a support case, the most defective paper points in the manufacturing process occur, such as the rolled sheet paper becoming loose or the millimeters being printed incorrectly. Additionally, the (S50) process for printing millimeters on dry sheet paper suffers from the problem of high labor intensity and excessive labor requirements due to the detailed process. Consequently, a paper point manufacturing method capable of reducing labor costs while simultaneously reducing the defect rate is needed. BRIEF DESCRIPTION OF THE INVENTION An object of the present invention is to provide a method for manufacturing dental paper points capable of reducing labor costs by simultaneously printing colors and millimeters to check standards to simplify a manufacturing process. Furthermore, another object of the present invention is to provide a method for manufacturing dental paper points capable of reducing the defect rate by uniformly perforating the sheet paper using a contact bale of a perforation die unit. The objects of the present invention are not limited to the objects mentioned above, and other objects and advantages of the present invention, which are not mentioned, will be understood from the following description and will become apparent from exemplary embodiments of the present invention. Furthermore, it will be readily appreciated that the objects and advantages of the present invention will be realized by the means illustrated in the appended claims and combinations thereof. [Technical Solution] According to an exemplary embodiment of the present invention, there is provided a method for manufacturing the paper tip which includes the steps of cutting a roll of paper, on which a standard check color, millimeter lines and perforation lines are printed, into sheets of paper having uniform sizes along the printed perforation lines, perforating the cut sheet paper using a perforation guide unit for fixing the sheet paper and a perforation die unit for perforating the sheet paper, and moistening and rolling the perforated sheet paper with water and drying the rolled sheet paper. Additionally, according to an exemplary embodiment of the present invention, the millimeter lines are arranged so as to be symmetrical on both sides based on the standard check color. Additionally, according to an exemplary embodiment of the present invention, the punch guide unit includes a sheet paper holder for fixing the sheet paper, a plurality of punch guides that are connected to the sheet paper holder for guiding the position of the sheet paper to be punched by the punching die unit, and a bundle of fixing bolts for fixing the sheet paper holder and the punch guide so as not to be moved. Furthermore, according to an exemplary embodiment of the present invention, the punching die unit includes a punching die that is provided between the plurality of punching guides and is guided along the punching guide to punch the sheet paper, and a punching device head for pressing the punching die in a direction of the sheet paper so that the sheet paper is punched by the punching die. Additionally, according to an exemplary embodiment of the present invention, the punch guide is connected to the sheet paper support to be movable by a predetermined distance. Furthermore, according to an exemplary embodiment of the present invention, in punching the sheet paper, a plurality of sheet papers are fixed to the punch guide unit in an overlapping state, and the punching die unit simultaneously punches the plurality of sheet papers in the overlapping state. The plurality of sheet papers may be, for example, 20 to 30 sheets. zpfronn / zznz / E / YiAi Additionally, according to an exemplary embodiment of the present invention, the perforation die unit may further include a contact bale provided between the perforation dies for contacting the sheet paper in a direction of the perforation guide unit, and the contact bale includes a first contact bale disposed at an upper end of the perforation die and a second contact bale disposed at a lower end of the perforation die. Additionally, according to an exemplary embodiment of the present invention, the contact bale includes a spring that is disposed between the first contact bale and the second contact bale to urge the first contact bale and the second contact bale in opposite directions to each other using an elastic force. Additionally, according to an exemplary embodiment of the present invention, the printed roll paper further includes a check line capable of controlling a shrinkage deviation. Additionally, according to an exemplary embodiment of the present invention, the printed perforation line has a thickness of 0.1 mm to 0.15 mm. [Advantageous Effects! According to the exemplary embodiment of the present invention, in a method for manufacturing paper point, it is possible to reduce labor costs by simultaneously printing colors and millimeters for standard checking to simplify a manufacturing process. Furthermore, in a method for manufacturing the paper tip according to an exemplary embodiment of the present invention, it is possible to reduce the defect rate by uniformly perforating sheet paper using a nip of a perforation die unit. BRIEF DESCRIPTION OF THE DRAWINGS FIGURE 1 is a front view of a paper point. FIGURE 2 is a flow diagram of a conventional method of manufacturing a paper point. FIGURE 3 is a front view of sheet paper in accordance with an exemplary embodiment of the present invention. FIGURE 4 is a plan view of a drill guide assembly in accordance with an exemplary embodiment of the present invention. FIGURE 5 is a front view of a punching die assembly according to an exemplary embodiment of the present invention. FIGURE 6 is a flow diagram of a method for manufacturing a paper point in accordance with an exemplary embodiment of the present invention. zpfronn / zznz / E / YiAi DETAILED DESCRIPTION OF THE INVENTION The present invention may have various modifications and embodiments, and the specific embodiments will be illustrated in the drawings and described in detail in the detailed description. However, the present invention is not limited to specific exemplary embodiments, and it should be understood that the present invention encompasses all modifications, equivalents, and substitutions included within the idea and technical scope of the present invention. In describing each drawing, reference numerals refer to similar elements. Terms such as "first," "second," "A," "B," and the like are used to describe various components, but the components are not limited by the terms. The terms are used only to distinguish one constituent element from another constituent element. For example, without departing from the scope of the invention, a first component may be referred to as a "second component," and similarly, a second component may be referred to as a "first component." A term "and / or" includes a combination of a plurality of associated disclosed elements or any one of the plurality of associated disclosed elements. It should be understood that when a component is described as being coupled or connected to another component, the component may be directly coupled or connected to the other component, but there may be another component between them. Conversely, when a component is described as being directly coupled or directly connected to another component, it should be understood that there is no component present between them. The terms used herein are used solely to describe specific exemplary embodiments and are not intended to limit the present invention. Singular terms used herein include plural terms unless they have definitively opposite meanings in context. Terms such as comprising or having are inclusive and therefore specify the presence of features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more features, integers, steps, operations, elements, components, or groups thereof in advance. Unless otherwise defined, all terms used herein, including technological or scientific terms, have the same meanings as those generally understood by a person of ordinary skill in the art. Terms defined in a dictionary of general use should be interpreted as having the same meanings they have in the context of the related art, and are not to be construed as ideal or excessively formal meanings unless otherwise defined in this application. Hereinafter, preferred exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIGURE 3 is a front view of a sheet paper according to an exemplary embodiment of the present invention. Referring to FIG. 3, a sheet paper 100 is produced by cutting a roll paper with a uniform size. The roll paper is printed with a standard check color 110, a millimeter line 120, and a perforation line 130, and according to the paper point manufacturing method, the roll paper is cut along the perforation line to obtain the sheet paper 100 of a uniform size. At this time, in order to minimize the occurrence of errors, the thickness of the perforation line 130 may be 0.1 mm to 0.15 mm. As such, since the uniformly sized sheet paper 100 is obtained through the perforation line, a process (paper centering) of attaching the cut sheet paper 100 to the drawing paper can be omitted, and the efficiency of the manufacturing operation can be improved. Standard 110 check color means a color marked to identify the standard, and referring to FIGURE 3, yellow is the standard 110 check color and is located at an upper end which is a part of the paper point handle completed through a further manufacturing process. The millimeter line 120 is a line capable of checking an inserted depth when the paper point is inserted into the root canal, and may be arranged to be symmetrical on both sides with respect to the standard check color 110. Accordingly, when perforating the sheet paper 100, they may be perforated using both directions of the standard check color 110, thereby maximizing the utilized area of the sheet paper 100 and minimizing the loss thereof. The sheet paper 100 includes the standard check color 110 and the millimeter line 120 and is perforated at predetermined intervals based on the standard check color 110, and a perforation shape 140 has a right-angled trapezoidal shape without a sharp end, as illustrated in FIG. 3. At this point, a plurality of millimeter lines 120 may be included, which may be printed and positioned at 18 mm, 19 mm, 20 mm, 22 mm, and 24 mm points, based on the furthest point of the standard check color 110 in the perforation shape 140, respectively. Thus, according to the paper point manufacturing method of the present invention, it is possible to eliminate the manufacturing process of printing the millimeter lines again after drying by using the sheet paper 100 on which the millimeter lines 120 as well as the standard check color 110 are printed together, and to minimize the defect rate of the product. Furthermore, the method for manufacturing the paper tip according to an exemplary embodiment of the present invention may further include a shrinkage error control line 150 on the sheet paper 100. The 150 shrinkage error control line is a line for checking the shrinkage deviation that needs to be controlled after the drying process of perforated sheet paper. Referring again to FIG. 1, the millimeter line 20 is marked at a predetermined distance from the lower end tip 30 of the paper point 1 to check how deep the paper point is inserted from the root of the tooth. Here, the predetermined distance may be 18 mm, 19 mm, 20 mm, 22 mm, or 24 mm. The completed paper point after the drying process may shrink compared to the paper point before the drying process to generate the deviation. Accordingly, the method for manufacturing the paper point according to the exemplary embodiment of the present invention may further include a size checking process after the drying process. The size checking process is performed by comparing a predetermined distance from the paper point before the drying process with a predetermined distance from the finished paper point after the drying process. At this point, if the shrinkage error exceeds a preset allowable value, a punch guide 220 to be described later is moved left and right using the shrinkage error control line 150. Meanwhile, a plurality of shrinkage error control lines 150 may be marked at 1 mm intervals. For example, when the preset allowable value is 0.5 mm and the shrinkage error is 1.5 mm, the shrinkage error exceeds the preset allowable value. Accordingly, the shrinkage error can be adjusted by moving the punch guide 220 to the left or right by 1 mm depending on a punching direction based on the standard check color 110. In this way, shrinkage error can be controlled through the size checking process to minimize shrinkage error, thereby producing a uniform and high-quality paper point. FIG. 4 is a plan view of a punch guide assembly according to an exemplary embodiment of the present invention, and FIG. 5 is a front view of a punch die assembly according to an exemplary embodiment of the present invention. Hereinafter, the punch guide assembly and the punch die assembly will be described with reference to FIG. 4 and FIG. The punch guide unit 200 is a tool for fixing the sheet paper 100 and includes a sheet paper holder 210, a punch guide 220 and a bundle of fixing bolts 230 with reference to FIG. 4. The sheet paper holder 210 accommodates the paper so that the paper perforating operation 100 is performed by a perforation die assembly, which will be described later. In one embodiment, the sheet paper holder 210 can accommodate a plurality of sheet papers at the same time, and since each sheet paper has a uniform size, the perforation die assembly simultaneously perforates the plurality of sheet papers, thereby improving productivity. The punch guide 220 is connected to the sheet paper holder 210 to guide the position of the sheet paper 100 to be punched by the punching die unit. The punch guide 220 may be plural and may be movable by a predetermined distance so that the punching die unit can punch the left and right sides based on the standard check color 110. The movable predetermined distance may be, for example, a distance from the farthest part to the millimeter line 120 at a point of 18 mm based on the standard check color 110 in the perforation shape 140. The fixing bolt bundle 230 is provided at one end of the sheet paper holder 210 for pressing and fixing the sheet paper 100 accommodated by the bolt. The fixing bolt bundle 230 may be plural, and the plurality of fixing bolt bundles 230 may be arranged at positions corresponding to each other to improve the fixing force of the sheet papers 100. The punching die unit 300 is a tool for punching the sheet paper, and referring to FIG. 5, the punching die unit 300 includes a punching die 310 and a punching device head 320. The punching die 310 is located between the plurality of punching guides 220 and is guided along the punching guides to punch the sheet paper 100. One end of the punching die 310 can punch a plurality of sheet papers simultaneously into a long, thin sheet. Meanwhile, the punching die unit 300 may further include a contact bale 312 provided between the punching dies 310 for contacting the sheet paper 100 in a direction of the punching guide unit 200. Here, the contact bale 312 may include a first contact bale 312a disposed at an upper end of the punching die 310 and a second contact bale 312b disposed at a lower end of the punching die 310. When the punching die 310 is pressed from the punching device head 320 to punch the plurality of sheet papers, the sheet paper punched at the upper end among the plurality of sheet papers is convexly deformed within the punching die as the punching die 310 moves downward. Accordingly, when punching the plurality of sheet papers, it is possible that not all of the sheet papers are punched with uniform sizes. Consequently, the second contact bale 312 moves together when the perforation die 310 moves downward and is contacted in the direction of the perforation guide unit. Consequently, convex deformation of the sheet paper can be prevented, and the entire plurality of sheet papers can be uniformly perforated. Additionally, the contact bale 312 may further include a spring 314 that is disposed between the first contact bale 312a and the second contact bale 312b to urge the first contact bale 312a and the second contact bale 312b in opposite directions to each other using an elastic force. Spring 314 is a structure that performs a cushioning action and the like using elastic and restoring forces, and may be made of a material having a high elastic force. Spring 314 urges the first and second contact bales in opposite directions to each other so that the perforated sheet paper can be easily separated from the perforation die 310. The punching device head 320 presses the punching die 310 in the direction of the sheet papers so that the sheet paper 100 is punched by the punching die 310. The punching device head 320 may be made of a metal having strong durability to withstand multiple pressures and at the same time be heavy to apply adequate pressure to the punching die 310. FIGURE 6 is a flow diagram of a method for manufacturing a paper point in accordance with an exemplary embodiment of the present invention. Referring to FIG. 6, in a method for manufacturing a paper tip of the present invention, a roll paper, on which a standard check color, millimeter lines and perforation lines are printed, is cut into sheet papers having uniform sizes along the printed perforation lines (S110). In this case, the perforation line can be 0.1 mm to 0.15 mm thick, and since the roll paper is cut along the thin perforation line, the cut sheet papers can be of uniform size. Next, in the paper tip manufacturing method, the cut zpfronn / zznz / E / YiAi sheet paper is punched using a punch guide unit to fix the sheet paper and a punch die unit to punch the sheet paper (S120). Here, the punch guide unit includes a sheet paper holder for fixing the sheet paper, a plurality of punch guides that are connected to the sheet paper holder for guiding the position of the sheet paper to be punched by the punching die unit, and a bundle of fixing bolts for fixing the sheet paper holder and the punch guide so as not to be moved. Furthermore, the punching die unit includes a punching die which is provided between the plurality of punching guides and is guided along the punching guide to punch the paper sheet, and a punching device head for pressing the punching die in a paper sheet direction so that the paper sheet is punched by the punching die. Finally, in the paper point manufacturing method, the perforated sheet papers are moistened with water and rolled, and the rolled sheet papers are dried to complete the paper point manufacturing process (S130). At this point, when the perforated sheet papers are wound, a rolling plate can be used. The rolling plate is a plate formed with a groove of a predetermined depth so that the perforated sheet paper can be accommodated. It guides the sheet paper so that it does not move left and right when wound. This makes it possible to produce a uniform and precise paper tip. Furthermore, the paper point manufacturing method may further include a process for checking the size of the paper point after the drying process. The precise paper point may be manufactured by checking for shrinkage error through size checking and adjusting the punch guide to reflect the checked shrinkage error. As described above, according to the method for manufacturing the paper point according to the exemplary embodiment of the present invention, it is possible to omit a process of printing millimeter lines after drying the sheet papers by simultaneously printing the standard check color and the millimeters. Since the process of additionally printing the millimeter lines is a labor-intensive process, this process is eliminated to simplify the manufacturing process and significantly reduce labor costs. Furthermore, according to the method for manufacturing the paper tip according to the exemplary embodiment of the present invention, it is possible to reduce the defect rate by uniformly perforating the sheet paper using the zpfronn / zznz / E / YiAi nip bale and the perforation die unit. As described above, the present invention has been described with reference to the illustrated drawings, but the present invention is not limited to the exemplary embodiments of the present invention and the drawings, and it will be apparent that those skilled in the art can make various modifications within the scope of the technical idea of the present invention. Furthermore, it is natural that even through the effects according to the configuration of the present invention are not explicitly described while describing the exemplary embodiments of the present invention prior, the expected effects should be recognized by the configuration.
Claims
1. A method for manufacturing a dental paper point, characterized in that it comprises the steps of: cutting a roll paper, on which a standard check color, millimeter lines and perforation lines are printed, into sheet papers having uniform sizes along the printed perforation lines; perforating the cut sheet papers using a perforation guide unit to fix the sheet papers and a perforation mold unit to perforate the sheet papers; and wetting and rolling the perforated sheet papers with water and drying the rolled sheet papers.
2. The method for manufacturing the paper tip according to claim 1, characterized in that the millimeter lines are arranged so that they are symmetrical on both sides based on the standard check color.
3. The method for manufacturing the paper tip according to claim 1, characterized in that the punch guide unit includes a sheet paper holder for securing the sheet of paper, a plurality of punch guides connected to the sheet paper holder for guiding the position of the sheet of paper to be punched by the punch mold unit, and a bundle of fixing bolts for securing the sheet paper holder and the punch guide so as not to be moved.
4. The method for manufacturing the paper tip according to claim 3, characterized in that the punching mold unit includes a punching mold provided between the plurality of punching guides and guided along the punching guide to punch the paper sheet, and a punching device head for pressing the punching mold in a paper sheet direction so that the paper sheet is punched by the punching mold.
5. The method for manufacturing the paper tip according to claim 3, characterized in that the punch guide is connected to the sheet paper holder so that it is movable to a predetermined distance.
6. The method for manufacturing the paper tip according to claim 1, characterized in that the perforation of the sheet paper, a plurality of sheet papers are fixed to the perforation guide unit in an overlapping state, and the perforation mold unit simultaneously perforates the plurality of sheet papers in the overlapping state.
7. The method for manufacturing the paper tip according to claim 3, characterized in that the punching mold unit further includes a contact bundle provided between the punching molds to make contact with the sheet paper in a direction of the punching guide unit, and the contact bundle includes a first contact bundle disposed at an upper end of the punching mold and a second contact bundle disposed at a lower end of the punching mold.
8. The method for manufacturing the paper tip according to claim 7, characterized in that the contact bundle includes a spring that is disposed between the first contact bundle and the second contact bundle to push the first contact bundle and the second contact bundle in opposite directions to each other using an elastic force.
9. The method of manufacturing the paper tip according to claim 1, characterized in that the printed roll paper further includes a check line capable of monitoring for shrinkage deviation.
10. The method for manufacturing the paper tip according to claim 1, characterized in that the printed perforation line has a thickness of 0.1 mm to 0.15 mm.