JP2002012209A - Method of finishing resin container - Google Patents
Method of finishing resin containerInfo
- Publication number
- JP2002012209A JP2002012209A JP2000196606A JP2000196606A JP2002012209A JP 2002012209 A JP2002012209 A JP 2002012209A JP 2000196606 A JP2000196606 A JP 2000196606A JP 2000196606 A JP2000196606 A JP 2000196606A JP 2002012209 A JP2002012209 A JP 2002012209A
- Authority
- JP
- Japan
- Prior art keywords
- finishing
- container
- opening
- resin container
- inner peripheral
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Drilling And Boring (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【技術分野】本発明は、樹脂製容器の仕上げ加工方法に
関するものである。TECHNICAL FIELD The present invention relates to a method for finishing a resin container.
【０００２】[0002]
【従来の技術】液体などを充填可能な容器を製造する方
法としては、例えば、円筒形のパリソンを金型内に収容
してブロー成形するものがあり、ブロー成形された容器
を取り出す際には、パリソン内に圧縮空気を噴出するノ
ズルも金型と共に取り外している。この場合、容器の開
口部端縁にバリなどが生じることがあるため、容器のシ
ール性を確保する目的で、図３に示す如く、ドリルなど
の回転式切削刃を容器１０の開口部１１に対して貫通さ
せることにより、開口部１１の内周面１１ｆを仕上げ加
工することが一般的である。2. Description of the Related Art As a method of manufacturing a container capable of being filled with a liquid or the like, for example, there is a method in which a cylindrical parison is housed in a mold and blow-molded. The nozzle for ejecting compressed air into the parison is also removed together with the mold. In this case, since burrs and the like may be generated at the edge of the opening of the container, a rotary cutting blade such as a drill is attached to the opening 11 of the container 10 as shown in FIG. In general, the inner peripheral surface 11f of the opening 11 is finished by being penetrated.
【０００３】しかしながら、上記の仕上げ加工にあって
は、ドリルなどを用いて容器開口部の内周面を仕上げ加
工する場合、その切り屑（削り屑）が容器の内部空間に
入るという不都合があるため、切削加工の際にエアブロ
ーなどを施すことによって容器内部から削り屑を排出す
る必要があった。[0003] However, in the above finishing, when the inner peripheral surface of the container opening is finished with a drill or the like, there is a disadvantage that the chips (cuttings) enter the internal space of the container. Therefore, it has been necessary to discharge shavings from the inside of the container by performing an air blow or the like during the cutting process.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、上述の事実
に鑑みてなされたものであって、回転式の切削刃を用い
て容器開口部の内周面を仕上げ加工する場合、その削り
屑が容器の内部空間に入るという不都合を解消すること
を目的とする。DISCLOSURE OF THE INVENTION The present invention has been made in view of the above-mentioned facts, and when the inner peripheral surface of a container opening is finished using a rotary cutting blade, the shavings are removed. It is intended to eliminate the inconvenience that the liquid enters the internal space of the container.
【０００５】[0005]
【課題を解決するための手段】この課題を解決するた
め、本発明に係る樹脂製容器の仕上げ加工方法は、先端
部にテーパを有する回転式の切削刃を用いて樹脂製容器
の開口部内周面に仕上げ加工を施すに当たり、該開口部
の入口端から仕上げ加工を開始し、容器の内部空間につ
ながる該開口部の出側端に至るまでに該仕上げ加工を終
了することを特徴するものである。In order to solve this problem, a method for finishing a resin container according to the present invention uses an inner peripheral portion of an opening of a resin container using a rotary cutting blade having a tapered tip. When finishing the surface, the finishing process is started from the inlet end of the opening, and the finishing process is completed before reaching the outlet end of the opening connected to the internal space of the container. is there.
【０００６】この場合、樹脂製容器の開口部内周面に仕
上げ加工を施すに当って、回転式切削刃がその最大径の
部分まで貫通しないため、その削り屑が容器の内部空間
に侵入することを防止できる。[0006] In this case, when the inner peripheral surface of the opening of the resin container is subjected to the finishing process, the rotary cutting blade does not penetrate to the portion of the maximum diameter, so that the shavings enter the internal space of the container. Can be prevented.
【０００７】従って本発明によれば、樹脂製容器の開口
部内周面に施す仕上げ加工を従来に比べて少ない工程数
で実施することができるため、製造コストを抑えつつ生
産性の向上を図ることができる。Therefore, according to the present invention, it is possible to carry out the finishing process for the inner peripheral surface of the opening portion of the resin container in a smaller number of steps as compared with the conventional process, thereby improving the productivity while suppressing the manufacturing cost. Can be.
【０００８】[0008]
【実施の形態】本発明の好適な実施形態において、容器
開口部における回転式切削刃により仕上げ加工を施され
る径方向範囲が、容器開口部内面から０．５ｍｍを越え
る範囲であることが好ましい。さらには、１．０ｍｍ以
上の範囲であることが特に好ましい。DESCRIPTION OF THE PREFERRED EMBODIMENTS In a preferred embodiment of the present invention, it is preferable that a radial range in which finishing is performed by a rotary cutting blade at a container opening is a range exceeding 0.5 mm from the inner surface of the container opening. . Further, it is particularly preferable that the distance is 1.0 mm or more.
【０００９】[0009]
【実施例】以下、本発明の一実施例を、添付図面に基づ
き詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the accompanying drawings.
【００１０】図１は、先端部にテーパを有する回転式の
切削刃を用いて樹脂製容器の開口部内周面に仕上げ加工
を施すための工程を説明する図であって、（ａ）は仕上
げ加工すべき容器と、回転式の切削刃とを示し、（ｂ）
は仕上げ加工の状態を示す断面図である。FIG. 1 is a view for explaining a process for performing a finishing process on an inner peripheral surface of an opening portion of a resin container by using a rotary cutting blade having a tapered tip portion. (B) showing the container to be machined and the rotary cutting blade
FIG. 4 is a cross-sectional view showing a state of finishing processing.
【００１１】図１（ａ）に示す容器１０は、ダイレクト
ブロー成形された容器である。容器を構成する具体的な
樹脂材料としては、例えば、ポリエチレン（ＰＥ）や高
密度ポリエチレン（ＨＤ）が挙げられる。また回転式の
切削刃である仕上げ加工具２０は、先端部にテーパ２１
を有する。なお、仕上げ加工具２０は、先端部にテーパ
を有する回転式の切削刃であればよいことから、ドリル
以外にも、リーマやエンドミルなどでもよい。A container 10 shown in FIG. 1A is a container formed by direct blow molding. Specific examples of the resin material forming the container include polyethylene (PE) and high-density polyethylene (HD). The finishing tool 20, which is a rotary cutting blade, has a taper 21 at its tip.
Having. Note that the finishing tool 20 may be a rotary cutting blade having a tapered tip, and thus may be a reamer, an end mill, or the like, in addition to a drill.
【００１２】次に、本実施例による仕上げ加工方法を図
１および図２を参照して詳細に説明する。Next, the finishing method according to the present embodiment will be described in detail with reference to FIGS.
【００１３】本発明に係る樹脂製容器の仕上げ加工方法
は、図１（ａ）に示す如く、仕上げ加工具２０を樹脂製
容器１０の開口部１１の入口端１２から導入することに
よって内周面に仕上げ加工を施す。仕上げ加工具２０
は、図１（ｂ）に示す如く、開口部１１の入口端１２か
ら仕上げ加工を開始し、容器１０の内部空間につながる
開口部１１の出側端１３に至るまでに該仕上げ加工を終
了する。As shown in FIG. 1 (a), the method for finishing a resin container according to the present invention is such that a finishing tool 20 is introduced from an inlet end 12 of an opening 11 of a resin container 10 so that an inner peripheral surface is formed. Finish processing. Finishing tool 20
1B, as shown in FIG. 1B, starts the finishing from the inlet end 12 of the opening 11 and ends the finishing until reaching the outlet end 13 of the opening 11 connected to the internal space of the container 10. .
【００１４】この場合、樹脂製容器１０の開口部１１の
内周面に仕上げ加工を施すに当って、仕上げ加工具２０
がその最大径φmaxの部分まで貫通しないため、その削
り屑が容器１０の内部空間に侵入することを防止でき
る。In this case, when finishing the inner peripheral surface of the opening 11 of the resin container 10, the finishing tool 20 is used.
Does not penetrate to the portion of the maximum diameter φmax, so that the shavings can be prevented from entering the internal space of the container 10.
【００１５】具体的には、仕上げ加工が施された開口部
１１が、図２に示すような断面形状となって、入口端１
２と出側端１３との間に隙間ｃの段差部分１４が形成さ
れるため、この段差部分１４が切削加工で生じる削り屑
を容器１０の内部空間に引き込むことを防止する。但
し、段差部分１４を形成する隙間ｃの寸法は、開口部１
１の内径寸法及び容器開口部の強度・シール性に影響を
及ぼさない範囲である。Specifically, the finished opening 11 has a sectional shape as shown in FIG.
Since the step portion 14 of the gap c is formed between the second end 2 and the outlet end 13, the step portion 14 prevents the shavings generated by the cutting process from being drawn into the internal space of the container 10. However, the size of the gap c forming the step portion 14 is the same as that of the opening 1.
This is a range that does not affect the inner diameter dimension of 1 and the strength and sealing property of the container opening.
【００１６】また、本実施例は、仕上げ加工具２０が開
口部１１を貫通する従来の仕上げ加工に比べて切削量も
少なく済むことで削り屑も小さくなったため、開口部１
１からの排出も容易になる。In this embodiment, since the finishing tool 20 requires a smaller cutting amount than conventional finishing processing in which the finishing tool 20 penetrates the opening 11, the amount of shavings is reduced.
Discharge from 1 is also easy.
【００１７】従って本実施例によれば、樹脂製容器１０
の開口部１１の内周面に施す仕上げ加工を従来に比べて
少ない工程数で実施することができるため、製造コスト
を抑えつつ生産性の向上を図ることができる。Therefore, according to this embodiment, the resin container 10
Since the finishing process performed on the inner peripheral surface of the opening 11 can be performed in a smaller number of steps than in the related art, the productivity can be improved while suppressing the manufacturing cost.
【００１８】本発明の好適な実施例において、容器開口
部１１における仕上げ加工具２０により仕上げ加工を施
される径方向範囲、つまり、段差隙間ｃが、開口部１１
の内面から０．５ｍｍを越える範囲であることが好まし
い。さらには、１．０ｍｍ以上の範囲であることが特に
好ましい。In the preferred embodiment of the present invention, the radial range in which finishing is performed by the finishing tool 20 in the container opening 11, that is, the step gap c is formed in the opening 11.
Is preferably more than 0.5 mm from the inner surface of the substrate. Further, it is particularly preferable that the distance is 1.0 mm or more.
【００１９】次に、本発明における実験結果を述べる。
実験には、高密度ポリエチレン製容器を使用し、仕上げ
加工具であるドリル（材質 φ２５ＣＰＮ）の回転数を
１２００ｒｐｍ、仕上げ加工後のエアブロー無しの条件
にて、ドリルを貫通させた従来加工法Ａと、段差隙間Ｃ
を形成した本発明加工法Ｂ、即ち、ａ）Ｃ＝０．５ｍ
ｍ、ｂ）Ｃ＝１．０ｍｍ、ｃ）Ｃ＝１．５ｍｍの４パタ
ーンで各２００本を仕上げ加工し、削り屑混入の本数を
確認した。その結果を表１に示す。Next, the experimental results in the present invention will be described.
In the experiment, using a container made of high-density polyethylene, using a drill (material φ25 CPN) as a finishing tool, rotating at 1200 rpm and using a conventional processing method A in which the drill was penetrated under the condition of no air blow after finishing. , Step gap C
The present invention processing method B in which a was formed, ie, a) C = 0.5 m
m, b) C = 1.0 mm, c) C = 1.5 mm, 200 patterns each were finished and the number of chips mixed was checked. Table 1 shows the results.
【００２０】[0020]
【表１】 [Table 1]
【００２１】上記実験結果から、削り屑混入防止には、
本発明の如く、段差隙間Ｃが形成されるよう、仕上げ加
工を施すことが有効であることが判明した。From the above experimental results, to prevent shavings from entering,
As in the present invention, it has been found that it is effective to perform finishing so as to form the step gap C.
【００２２】上述したところは、本発明の好適な実施例
を示したに過ぎず、当業者によれば、請求の範囲におい
て、種々の変更を加えることができる。The foregoing merely illustrates preferred embodiments of the present invention, and those skilled in the art will be able to make various modifications within the scope of the appended claims.
【図１】 本発明の一実施例に係る樹脂製容器の仕上げ
加工方法を説明する図であって、（ａ）は仕上げ加工す
べき樹脂製容器と、回転式の切削刃とを示す一部断面
図、（ｂ）は仕上げ加工の状態を示す断面図である。FIG. 1 is a view for explaining a method of finishing a resin container according to one embodiment of the present invention, where (a) is a partial view showing a resin container to be finished and a rotary cutting blade. Sectional drawing, (b) is sectional drawing which shows the state of finishing.
【図２】 本発明の仕上げ加工が施された樹脂製容器を
示す断面図である。FIG. 2 is a cross-sectional view showing a resin container to which the finishing processing of the present invention has been applied.
【図３】 仕上げ加工が施された従来の樹脂製容器を示
す断面図である。FIG. 3 is a cross-sectional view showing a conventional resin container subjected to finishing.
１０ 樹脂製容器 １１ 開口部（樹脂製容器） １１ｆ 内周面（開口部） １２ 入口端（開口部） １３ 出側端（開口部） １４ 段差部分（開口部） ２０ 仕上げ加工具 ２１ テーパ（回転式切削刃） ２２ 最大径部分（回転式切削刃） ｃ 段差隙間 Ｌ 開口部の全長 DESCRIPTION OF SYMBOLS 10 Resin container 11 Opening (resin container) 11f Inner peripheral surface (opening) 12 Inlet end (opening) 13 Outlet end (opening) 14 Step part (opening) 20 Finishing tool 21 Taper (rotation) Type cutting blade) 22 Maximum diameter part (rotary cutting blade) c Step gap L Total length of opening
───────────────────────────────────────────────────── フロントページの続き (72)発明者 秋山 善男 栃木県栃木市吹上町1550 株式会社吉野工 業所栃木工場内 Ｆターム(参考） 3C036 AA02 3E033 AA01 BA15 DA03 DB03 FA03 4F208 LB01 LW02 LW24 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yoshio Akiyama 1550 Fukiage-cho, Tochigi-city, Tochigi Prefecture F-term in Yoshino Works, Tochigi Plant (reference) 3C036 AA02 3E033 AA01 BA15 DA03 DB03 FA03 4F208 LB01 LW02 LW24
Claims (2)
を用いて樹脂製容器の開口部内周面に仕上げ加工を施す
に当たり、 該開口部の入口端から仕上げ加工を開始し、容器の内部
空間につながる該開口部の出側端に至るまでに該仕上げ
加工を終了することを特徴する樹脂製容器の仕上げ加工
方法。When finishing an inner peripheral surface of an opening of a resin container by using a rotary cutting blade having a tapered tip, finishing is started from an inlet end of the opening and the inside of the container is finished. A method of finishing a resin container, wherein the finishing is completed before reaching an exit end of the opening portion leading to a space.
より仕上げ加工を施される径方向範囲が、容器開口部内
面から０．５ｍｍを越える範囲であることを特徴とす
る、請求項１記載の方法。2. The container according to claim 1, wherein a radial range in which the finishing is performed by the rotary cutting blade in the container opening is more than 0.5 mm from the inner surface of the container opening. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000196606A JP3869190B2 (en) | 2000-06-29 | 2000-06-29 | Finishing method for plastic containers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000196606A JP3869190B2 (en) | 2000-06-29 | 2000-06-29 | Finishing method for plastic containers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002012209A true JP2002012209A (en) | 2002-01-15 |
| JP3869190B2 JP3869190B2 (en) | 2007-01-17 |
Family
ID=18695066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000196606A Expired - Lifetime JP3869190B2 (en) | 2000-06-29 | 2000-06-29 | Finishing method for plastic containers |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3869190B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009107269A (en) * | 2007-10-31 | 2009-05-21 | Kojima Press Co Ltd | Ultrasonic cutting method and hollow molding for ultrasonic cutting |
-
2000
- 2000-06-29 JP JP2000196606A patent/JP3869190B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009107269A (en) * | 2007-10-31 | 2009-05-21 | Kojima Press Co Ltd | Ultrasonic cutting method and hollow molding for ultrasonic cutting |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3869190B2 (en) | 2007-01-17 |
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