JP2010158860A - Slotter knife - Google Patents

Slotter knife Download PDF

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JP2010158860A
JP2010158860A JP2009003520A JP2009003520A JP2010158860A JP 2010158860 A JP2010158860 A JP 2010158860A JP 2009003520 A JP2009003520 A JP 2009003520A JP 2009003520 A JP2009003520 A JP 2009003520A JP 2010158860 A JP2010158860 A JP 2010158860A
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end surface
outer peripheral
slotter knife
fan
edge
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JP5253189B2 (en
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Hiroyuki Ando
洋行 安藤
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Tomoku KK
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Tomoku KK
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a highly durable slotter knife 5 for preventing breakage of a starting end part of a cut groove Sr1 of a rectangular cardboard sheet S. <P>SOLUTION: The slotter knife 5 is equipped with a fan-shaped plate-like part 51 having a pair of arc-shaped blade parts 52 on both side edges of an outer peripheral surface and a protruding blade part 53 provided on one side end part in the peripheral direction of the outer peripheral surface of the fan-shaped plate-like part 51. The protruding blade part 53 is formed to a truncated quadrangular pyramid shape, a front edge X connecting to the front end surface 53b of a tip end surface 53a is inclined with respect to the central axis line L of a circle along the outer peripheral surface of the fan-shaped plate-like part 51, the front end surface 53b droops from the front edge X of the tip end surface 53a to the inward in a radial direction. A rear edge Y connecting to the rear end surface 53c of the tip end surface 53a is in the same direction as the front edge X and more inclined than the front edge X with respect to the central axis line L, and the rear end surface 53c is a surface inclined so as to be twisted from the outer peripheral surface of the fan-shaped plate-like part 51 and gradually project outward in the radial direction toward the tip end surface 53a. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、矩形段ボールシート等のシートの対向する両端部に切り溝を形成するスロッタナイフに関する。   The present invention relates to a slotter knife that forms kerfs at opposite ends of a sheet such as a rectangular corrugated cardboard sheet.

従来、外周面の両側縁に一対の円弧状刃部を有する扇形板状部と、該扇形板状部の外周面の周方向一方の端部に設けられた突刃部とを備えるスロッタナイフが知られている（例えば、特許文献１参照）。   Conventionally, a slotter knife comprising a fan-shaped plate-shaped portion having a pair of arc-shaped blade portions on both side edges of the outer peripheral surface, and a protruding blade portion provided at one end in the circumferential direction of the outer peripheral surface of the fan-shaped plate-shaped portion. It is known (see, for example, Patent Document 1).

このスロッタナイフは、スロッタ装置に取り付けられるもので、スロッタ装置は、第１回転軸と、第１回転軸と平行に配置される第２回転軸と、第１回転軸を内挿した状態でこれに固定される第１筒状体と、この第１筒状体の軸方向一方の側面に周方向に間隔を存して固定される一対のスロッタナイフと、第２回転軸を内挿した状態でこれに固定される第２筒状体と、第２筒状体の外周面にスロッタナイフに対応させてスロッタナイフの円弧状刃部を受け入れると共に開口端縁たる一対の受け刃を有する環状溝部とを備え、両筒状体間に挿入される矩形段ボールシートの挿入方向の前後端部に夫々切り溝を形成する。   The slotter knife is attached to the slotter device. The slotter device is inserted in the state where the first rotation shaft, the second rotation shaft arranged in parallel with the first rotation shaft, and the first rotation shaft are inserted. A first cylindrical body fixed to the first cylindrical body, a pair of slotter knives fixed on one side surface of the first cylindrical body in the circumferential direction with a gap in the circumferential direction, and a state where the second rotating shaft is inserted A second cylindrical body fixed to the second cylindrical body, and an annular groove portion having a pair of receiving blades serving as opening edges and receiving an arcuate blade portion of the slotter knife corresponding to the slotter knife on the outer peripheral surface of the second cylindrical body And a cut groove is formed in each of the front and rear end portions in the insertion direction of the rectangular cardboard sheet inserted between both cylindrical bodies.

スロッタ装置の一対のスロッタナイフのうち、矩形段ボールシートの挿入方向の前端部に切り溝を形成する方を前方スロッタナイフ、矩形段ボールシートの挿入方向の後端部に切り溝を形成する方を後方スロッタナイフとして、前方スロッタナイフの回転方向と逆方向側の外周面後端部には、径方向外方に突出する切り終り突部が設けられており、この切り終り突部により、前端部の切り溝の終端部を形成する。後方スロッタナイフの回転方向前方部には、径方向外方に突出する突刃部が設けられており、この突刃部により、後端部の切り溝の始端部を形成する。   Of the pair of slotter knives of the slotter device, the front slotter knife that forms the kerf at the front end in the insertion direction of the rectangular cardboard sheet, and the rear that forms the kerf at the rear end in the insertion direction of the rectangular cardboard sheet As a slotter knife, a rear end of the outer peripheral surface on the opposite side to the rotation direction of the front slotter knife is provided with a cutting end protrusion protruding radially outward. The end of the kerf is formed. At the front portion in the rotational direction of the rear slotter knife, there is provided a protruding blade portion that protrudes radially outward, and this protruding blade portion forms the start end portion of the kerf at the rear end portion.

ところで、後方スロッタナイフの突刃部で後端部の切り溝の始端部を形成する際に、切り溝の始端部が破れてしまうことがある。これを防止すべく、特許文献１のものでは後方スロッタナイフの突刃部を尖鋭に形成している。   By the way, when forming the start end portion of the rear end kerf with the rear slotter knife, the start end of the kerf may be broken. In order to prevent this, in Patent Document 1, the protruding blade portion of the rear slotter knife is sharply formed.

特開２００１−２８７２８５号公報JP 2001-287285 A

上記の如く、後方スロッタナイフの突刃部を尖鋭にすると、切り溝の始端部の破れを防止することができるものの、突刃部の刃先が磨耗し易く、耐久性が低下してしまう。   As described above, when the protruding blade portion of the rear slotter knife is sharpened, it is possible to prevent tearing of the start end portion of the kerf, but the cutting edge of the protruding blade portion is easily worn and the durability is lowered.

本発明は、以上の点に鑑み、切り溝の端部の破れを防止すると共に、耐久性の高いスロッタナイフを提供することを目的とする。   In view of the above points, an object of the present invention is to provide a slotter knife having high durability while preventing breakage of an end portion of a kerf.

上記目的を達成するため、本発明は、外周面の両側縁に一対の円弧状刃部を有する扇形板状部と、該扇形板状部の外周面の周方向一方の端部に設けられた突刃部とを備えるスロッタナイフにおいて、前記突刃部は四角錐台形状に形成され、前記突刃部の径方向外方の面を先端面、前記周方向一方側の面を前端面、周方向他方側の面を後端面として、前記先端面の前記前端面と連接する前縁は、前記扇形板状部の外周面に沿う円の中心軸線に対して傾斜しており、前記前端面は、前記先端面の前縁から径方向内方へ垂下し、前記先端面の前記後端面と連接する後縁は、前記前縁と同一方向であって前記中心軸線に対し該前縁よりも傾斜しており、前記後端面は、前記扇形板状部の外周面から捩れる様にして前記先端面に向って次第に径方向外方へ突出する様に傾斜した面とされることを特徴とする。   In order to achieve the above-mentioned object, the present invention is provided at a sector plate-shaped portion having a pair of arcuate blade portions on both side edges of the outer peripheral surface and one end portion in the circumferential direction of the outer peripheral surface of the sector plate-shaped portion. In the slotter knife including a cutting edge portion, the cutting edge portion is formed in a quadrangular frustum shape, a radially outer surface of the cutting blade portion is a tip surface, a surface on one side in the circumferential direction is a front end surface, a circumferential surface The front edge connected to the front end surface of the front end surface is inclined with respect to the center axis of a circle along the outer peripheral surface of the sector plate-shaped portion, with the other side surface in the direction as a rear end surface, and the front end surface is The trailing edge that hangs radially inward from the leading edge of the leading edge surface and that is connected to the trailing edge surface of the leading edge surface is in the same direction as the leading edge and is inclined relative to the central axis relative to the leading edge. The rear end surface is gradually radially outward toward the front end surface so as to be twisted from the outer peripheral surface of the sector plate-shaped portion. Characterized in that it is a sloped surface so as to protrude.

本発明によれば、突刃部が四角錐台形状に形成され、先端面を備えるため、従来の尖鋭な突刃部と比較して刃先が磨耗し難く、耐久性を向上させることができる。又、実験の結果、突刃部の先端面の前縁を、扇形板状部の外周面に沿う円の中心軸線に対して傾斜させ、前端面を、先端面の前縁から径方向内方へ垂下させ、先端面の後縁を、前縁と同一方向であって前記中心軸線に対し前縁よりも傾斜させ、後端面を、扇形板状部の外周面から捩れる様にして先端面に向って次第に径方向外方へ突出する様に傾斜した面とすることにより、切り溝の端部の破れを防止できることが分かった。従って、本発明によれば、切溝部の端部の破れを防止すると共に、耐久性を向上させることができる。   According to the present invention, since the projecting blade portion is formed in a truncated pyramid shape and has a tip surface, the cutting edge is less likely to be worn compared to a conventional sharp projecting blade portion, and durability can be improved. In addition, as a result of the experiment, the front edge of the tip surface of the projecting blade portion is inclined with respect to the central axis of a circle along the outer peripheral surface of the sector plate portion, and the front end surface is radially inward from the front edge of the tip surface. The rear end of the front end surface is inclined in the same direction as the front edge and with respect to the central axis with respect to the central axis, and the rear end surface is twisted from the outer peripheral surface of the fan-shaped plate-shaped portion. It was found that the end of the kerf can be prevented from being broken by making the surface inclined so as to gradually protrude outward in the radial direction. Therefore, according to the present invention, it is possible to prevent breakage of the end portion of the kerf portion and improve durability.

ところで、段ボール製包装箱用のシートを作成する際には、シートの両端を張り合わせて筒状の胴部を形成するための止め代が形成される。この止め代は、スロッタ装置で止め代用の切り溝を形成することにより設けられる。ここで、止め代は幅が狭いため、止め代用の切り溝を形成する際に、止め代がスロッタナイフ側に引き込まれ易い。止め代がスロッタナイフ側に引き込まれると、スロッタナイフが切り溝部分を上手く切断することができず、これにより、止め代用の切り溝の端部に破れが生じ易い。特にシートの挿入方向の後端部側の止め代用の切り溝の始端部は、スロッタナイフの突刃部により切り始められる部分であるため、破れ易い。   By the way, when a sheet for a corrugated cardboard packaging box is prepared, a stop margin for forming a cylindrical body by pasting both ends of the sheet is formed. This stop allowance is provided by forming a cut groove for the stop substitute with a slotter device. Here, since the stop allowance is narrow, the stop allowance is easily pulled into the slotter knife side when forming the stop allowance cut groove. When the stop margin is pulled toward the slotter knife, the slotter knife cannot cut the kerf portion well, and the end portion of the stop kerf is likely to be broken. In particular, the start end portion of the stop kerf on the rear end side in the sheet insertion direction is a portion that is started to be cut by the protruding blade portion of the slotter knife, and thus is easily broken.

この場合、上記スロッタナイフを、段ボール製包装箱用シートの挿入方向の後端部側の止め代用の切り溝を形成するものとし、突刃部の先端面の前縁及び後縁を、止め代側が前記周方向他方に向うように傾斜させればよい。これにより、シートの後端部側の止め代用の切り溝は、止め代の反対側から切り始められるため、切り始め時においては、切り溝の幅の分だけ止め代側の幅が広くなり、止め代がスロッタナイフ側に引き込まれ難い。更に、突刃部の前縁の止め代の反対側から切り始められるため、切り始め時においては、突刃部が、シートに点接触状態となって突き刺さり易くなる。従って、本発明のスロッタナイフによれば、特に破れ易い段ボール製包装箱用シートの後端部側の止め代用の切り溝の始端部が破れることを防止することができる。   In this case, the slotter knife is formed with a cut groove for a stop margin on the rear end side in the insertion direction of the cardboard packaging box sheet, and the leading edge and the rear edge of the tip surface of the protruding blade portion are set as a stop margin. What is necessary is just to incline so that the side may face the said circumferential direction other side. Thereby, since the cut groove for the stop margin on the rear end side of the sheet can be started from the opposite side of the stop margin, the width of the stop margin is widened by the width of the cut groove at the start of cutting, It is difficult for the stoppage to be pulled to the slotter knife side. Furthermore, since cutting starts from the opposite side of the leading edge of the cutting edge portion, the cutting blade portion is in a point contact state with respect to the sheet at the start of cutting, and is easily pierced. Therefore, according to the slotter knife of the present invention, it is possible to prevent the start end portion of the cut-off groove for the stop substitute on the rear end side of the corrugated cardboard packaging box sheet that is particularly easily torn.

本発明のスロッタナイフの実施形態を用いたスロッタ装置を示す説明図。Explanatory drawing which shows the slotter apparatus using embodiment of the slotter knife of this invention. 図１のスロッタ装置を中心軸線方向から示す説明図。Explanatory drawing which shows the slotter apparatus of FIG. 1 from the center axis direction. （ａ）は切り溝を形成する前のシートを示す説明図、（ｂ）は切り溝を形成した後のシートを示す説明図。(A) is explanatory drawing which shows the sheet | seat before forming a kerf, (b) is explanatory drawing which shows the sheet | seat after forming a kerf. （ａ）はスロッタナイフを突刃部の先端面側から示す説明図、（ｂ）はスロッタナイフを中心軸線方向一方（止め代と反対側）から示す説明図、（ｃ）はスロッタナイフを中心軸線方向他方（止め代側）から示す説明図。(A) is explanatory drawing which shows a slotter knife from the front end surface side of a blade part, (b) is explanatory drawing which shows a slotter knife from a central axial direction one side (opposite side to a stop allowance), (c) is centering on a slotter knife. Explanatory drawing shown from an axial direction other side (stop allowance side).

本発明のスロッタナイフの実施形態を、図１、図２に示すスロッタ装置１を用いて説明する。スロッタ装置１は、図３に示す矩形段ボールシートＳの前後端部に切り溝Ｓｆ１〜４，Ｓｒ１〜４を形成するものであり、第１回転軸２１と、第１回転軸２１と平行に配置される第２回転軸２２とを備える。図３に示すように、段ボールシートＳには、両端を張り合わせて筒状の胴部を形成するための止め代Ｓａが形成されている。   An embodiment of the slotter knife of the present invention will be described using a slotter device 1 shown in FIGS. The slotter device 1 is formed with slits Sf1 to Sr1 and Sr1 to Sr4 at the front and rear end portions of the rectangular corrugated cardboard sheet S shown in FIG. 3, and is arranged in parallel with the first rotating shaft 21 and the first rotating shaft 21. The second rotating shaft 22 is provided. As shown in FIG. 3, the corrugated cardboard sheet S is formed with a stop allowance Sa for sticking both ends together to form a cylindrical body.

第１回転軸２１には、第１回転軸２１を内挿した状態で第１筒状体３１が固定されており、この第１筒状体３１は第１回転軸２１と共に回転する。第１筒状体３１の軸方向一端面には、段ボールシートＳの止め代Ｓａ用の切り溝Ｓｆ１，Ｓｒ１を形成する為に、周方向に間隔を存して一対のスロッタナイフ４，５がボルト４ａ，５ａで固定されている。   A first cylindrical body 31 is fixed to the first rotating shaft 21 with the first rotating shaft 21 inserted therein, and the first cylindrical body 31 rotates together with the first rotating shaft 21. In order to form cut grooves Sf1 and Sr1 for the stop allowance Sa of the corrugated cardboard sheet S on one end surface in the axial direction of the first cylindrical body 31, a pair of slotter knives 4 and 5 are provided at intervals in the circumferential direction. It is fixed with bolts 4a and 5a.

第２回転軸２２には、第２回転軸２２を内挿した状態で第２筒状体３２が固定されており、この第２筒状体３２は第２回転軸２１と共に回転する。第２筒状体３２の外周面にはスロッタナイフ４，５に対応させてスロッタナイフ４，５の刃先を受け入れる環状溝部６が形成されている。環状溝部６の開口端縁６ａは、スロッタナイフ４，５に対する受け刃となっており、両筒状体３１，３２間に段ボールシートＳを挿入すると、スロッタナイフ４，５と受け刃たる開口端縁６ａに挟まれて、段ボールシートＳの前後両端部に止め代Ｓａ用の切り溝Ｓｆ１，Ｓｒ１が形成される。尚、止め代Ｓａの前後両端は、図外の刃により斜めに切断される。   A second cylindrical body 32 is fixed to the second rotating shaft 22 with the second rotating shaft 22 inserted therein. The second cylindrical body 32 rotates together with the second rotating shaft 21. An annular groove portion 6 is formed on the outer peripheral surface of the second cylindrical body 32 so as to correspond to the slotter knives 4 and 5 and receive the cutting edges of the slotter knives 4 and 5. The opening edge 6a of the annular groove 6 serves as a receiving blade for the slotter knives 4 and 5. When the cardboard sheet S is inserted between the cylindrical bodies 31 and 32, the slotter knives 4 and 5 and the opening end serving as the receiving blade. Cut grooves Sf1 and Sr1 for the stop allowance Sa are formed at both front and rear ends of the corrugated cardboard sheet S between the edges 6a. In addition, both front and rear ends of the stop allowance Sa are cut obliquely by an unillustrated blade.

第１回転軸２１の回転方向を前方、第１回転軸２１の回転方向と逆の方向を後方とし、前方に位置するスロッタナイフ４を前方スロッタナイフ４、後方に位置するスロッタナイフ５を後方スロッタナイフとして、前方スロッタナイフ４は段ボールシートＳの挿入方向の前端部の切り溝Ｓｆ１を形成し、後方スロッタナイフ５は段ボールシートＳの挿入方向の後端部の切り溝Ｓｒ１を形成する（図３（ｂ）参照）。前方スロッタナイフ４の後端部には、段ボールシートＳの前端部に位置する止め代Ｓａ用の切り溝Ｓｆ１の後端部を形成するための切り終り突部４１が形成されている。   The rotation direction of the first rotation shaft 21 is the front, the direction opposite to the rotation direction of the first rotation shaft 21 is the rear, the forward slotter knife 4 is the front slotter knife 4, and the rear slotter knife 5 is the rear slotter. As the knives, the front slotter knife 4 forms a kerf Sf1 at the front end of the cardboard sheet S in the insertion direction, and the rear slotter knife 5 forms a kerf Sr1 at the rear end of the cardboard sheet S in the insertion direction (FIG. 3). (See (b)). At the rear end portion of the front slotter knife 4, a cut end projection 41 for forming the rear end portion of the cut groove Sf1 for the stop allowance Sa located at the front end portion of the cardboard sheet S is formed.

後方スロッタナイフ５は、ボルト５ａを挿通させる挿通孔５１ａを有する扇形板状部５１と、扇形板状部５１の外周面の両側縁に形成された一対の円弧状刃部５２と、扇形板状部５１の外周面の前端部に突設された突刃部５３とを備える。   The rear slotter knife 5 includes a fan-shaped plate-like portion 51 having an insertion hole 51a through which the bolt 5a is inserted, a pair of arc-shaped blade portions 52 formed on both side edges of the outer peripheral surface of the fan-shaped plate-like portion 51, and a fan-like plate shape. And a projecting blade portion 53 projecting from the front end portion of the outer peripheral surface of the portion 51.

突刃部５３は、四角錐台形状に形成されている。径方向外方を先方として、突刃部５３の先端面５３ａの前縁Ｘは、扇形板状部５１の外周面に沿う円の中心軸線Ｌに対して止め代Ｓａ側が後方に向うように傾斜している。突刃部５３の前端面５３ｂは、平坦であり、先端面５３ａの前縁Ｘから中心軸線Ｌ側に向って垂下している。   The protruding blade part 53 is formed in a quadrangular frustum shape. The front edge X of the tip surface 53a of the blade portion 53 is inclined so that the stop allowance Sa side faces rearward with respect to the center axis L of the circle along the outer peripheral surface of the sector plate-like portion 51, with the radially outer side as the front. is doing. The front end surface 53b of the protruding blade portion 53 is flat and hangs down from the front edge X of the front end surface 53a toward the central axis L side.

先端面５３ａの後縁Ｙは、前縁Ｘと同一方向であって中心軸線Ｌに対し前縁Ｘよりも更に傾斜している。後端面５３ｃは、扇形板状部５１の外周縁から捩れる様にして先端面５３ａに向って次第に径方向外方に突出する傾斜した面となっており、後縁Ｙで先端面５３ａと連設されている。   The rear edge Y of the front end surface 53a is in the same direction as the front edge X and is further inclined with respect to the central axis L than the front edge X. The rear end surface 53 c is an inclined surface that gradually protrudes radially outward toward the front end surface 53 a so as to be twisted from the outer peripheral edge of the sector plate-like portion 51, and is connected to the front end surface 53 a at the rear edge Y. It is installed.

本実施形態の後方スロッタナイフ５によれば、突刃部５３が四角推台形状に形成され、先端面５３ａを備えるため、従来の尖鋭な突刃部と比較して刃先が磨耗し難く、耐久性を向上させることができる。   According to the rear slotter knife 5 of the present embodiment, the cutting edge 53 is formed in a quadrangular thrust trapezoidal shape and includes the tip surface 53a. Therefore, the cutting edge is less likely to be worn compared to the conventional sharp cutting edge, and is durable. Can be improved.

又、実験の結果、先端面５３ａの前縁Ｘを中心軸線Ｌに対して傾斜させ、前縁Ｘから前端面５３ｂを中心軸線Ｌ側に向けて垂下させ、先端面５３ａの後縁Ｙを前縁Ｘよりも中心軸線Ｌに対して傾斜させ、後端面５３ｃを扇形板状部５１の外周縁から捩れる様にして突刃部５３の先端面５３ａに向って次第に径方向外方に突出する傾斜した面とし、前縁Ｘ及び後縁Ｙを止め代側が後方を向くように傾斜させることにより、段ボールシートＳの後端部側の切り溝Ｓｒ１の始端部の破れを防止できることが分かった。   As a result of the experiment, the front edge X of the front end surface 53a is inclined with respect to the central axis L, the front end surface 53b is suspended from the front edge X toward the central axis L, and the rear edge Y of the front end surface 53a is moved forward. The rear end surface 53c is inclined with respect to the central axis L rather than the edge X, and gradually protrudes radially outward toward the front end surface 53a of the blade 53 so that the rear end surface 53c is twisted from the outer peripheral edge of the fan-shaped plate portion 51. It was found that by using the inclined surface and inclining the leading edge X and the trailing edge Y so that the stop margin side faces rearward, it is possible to prevent breakage of the starting end portion of the kerf Sr1 on the rear end side of the cardboard sheet S.

特に、本実施形態においては、破れが生じ易い段ボールシートＳの後端部側の止め代用の切り溝Ｓｒ１を形成する後方スロッタナイフ５を上記の如く構成することにより、止め代用の切り溝Ｓｒ１は、止め代Ｓａの反対側から切り始められる。このため、切り始め時においては、切り溝Ｓｒ１の幅の分だけ止め代側の幅が広くなり、止め代Ｓａがスロッタナイフ５側に引き込まれ難い。更に、突刃部５３の前縁Ｘの止め代Ｓａの反対側から切り始められるため、切り始め時においては、突刃部５３が、段ボールシートＳに点接触状態となって突き刺さり易くなる。   In particular, in the present embodiment, by forming the rear slotter knife 5 that forms the stop substitution groove Sr1 on the rear end side of the corrugated cardboard sheet S that is easily torn, the stop substitution groove Sr1 is formed as described above. The cutting is started from the opposite side of the stop margin Sa. For this reason, at the start of cutting, the width of the stop margin side is increased by the width of the cut groove Sr1, and the stop margin Sa is not easily drawn into the slotter knife 5 side. Further, since cutting is started from the opposite side of the stop margin Sa of the leading edge X of the cutting edge portion 53, the cutting edge portion 53 is in a point contact state with the corrugated cardboard sheet S at the beginning of cutting, and is easily pierced.

従って、本実施形態の後方スロッタナイフ５によれば、段ボールシートＳの後端部の切り溝Ｓｒ１の始端部の破れを防止すると共に、突刃部５３の耐久性を向上させることができる。   Therefore, according to the rear slotter knife 5 of the present embodiment, it is possible to prevent the start end portion of the cut groove Sr1 at the rear end portion of the corrugated cardboard sheet S from being broken and improve the durability of the protruding blade portion 53.

尚、実施形態においては、本発明のスロッタナイフを段ボールシートＳの後端部側の止め代用の切り溝Ｓｒ１を形成するものとして説明したが、これに限られず、本発明のスロッタナイフは、シートの挿入方向後端部側に位置する他の切り溝Ｓｒ２〜４を形成するスロッタナイフにも適用することができる。   In the embodiment, the slotter knife of the present invention has been described as forming the cut groove Sr1 on the rear end side of the corrugated cardboard sheet S. However, the present invention is not limited to this, and the slotter knife of the present invention is not limited to the sheet. The present invention can also be applied to a slotter knife that forms other kerfs Sr2 to 4 located on the rear end side in the insertion direction.

１…スロッタ装置、 ２１…第１回転軸、 ２２…第２回転軸、 ３１…第１筒状体、 ３２…第２筒状体、 ４…前方スロッタナイフ、 ４ａ…ボルト、 ４１…切り終り突部、 ５…後方スロッタナイフ、 ５ａ…ボルト、 ５１…扇形板状部、 ５１ａ…挿通孔、 ５２…円弧状刃部、 ５３…突刃部、 ５３ａ…先端面、 Ｘ…先端面の前縁、 Ｙ…先端面の後縁、 ５３ｂ…前端面、 ５３ｃ…後端面 ６…環状溝部、 ６ａ…受刃、 Ｓ…矩形段ボールシート、 Ｓａ…止め代、 Ｓｆ１…シートの前端部側の止め代用切り溝、 Ｓｆ２〜４…シートの前端部の切り溝、 Ｓｒ１…シートの後端部側の止め代用切り溝、 Ｓｒ２〜４…シートの後端部の切り溝。 DESCRIPTION OF SYMBOLS 1 ... Slotter apparatus, 21 ... 1st rotating shaft, 22 ... 2nd rotating shaft, 31 ... 1st cylindrical body, 32 ... 2nd cylindrical body, 4 ... Front slotter knife, 4a ... Bolt, 41 ... End of cut 5: Back slotter knife, 5a ... Bolt, 51 ... Fan-shaped plate portion, 51a ... Insertion hole, 52 ... Arc-shaped blade portion, 53 ... Projection blade portion, 53a ... Tip surface, X ... Front edge of tip surface, Y: trailing edge of front end surface, 53b ... front end surface, 53c ... rear end surface 6 ... annular groove, 6a ... receiving blade, S ... rectangular corrugated cardboard sheet, Sa ... stop allowance, Sf1 ... stop substitute cut groove on the front end side of the sheet Sf2-4 ... a kerf at the front end of the sheet, Sr1 ... a substitute kerf at the rear end of the sheet, Sr2-4 ... a kerf at the rear end of the sheet.

Claims (2)

外周面の両側縁に一対の円弧状刃部を有する扇形板状部と、該扇形板状部の外周面の周方向一方の端部に設けられた突刃部とを備えるスロッタナイフにおいて、
前記突刃部は四角錐台形状に形成され、
前記突刃部の径方向外方の面を先端面、前記周方向一方側の面を前端面、周方向他方側の面を後端面として、
前記先端面の前記前端面と連接する前縁は、前記扇形板状部の外周面に沿う円の中心軸線に対して傾斜しており、
前記前端面は、前記先端面の前縁から径方向内方へ垂下し、
前記先端面の前記後端面と連接する後縁は、前記前縁と同一方向であって前記中心軸線に対し該前縁よりも傾斜しており、
前記後端面は、前記扇形板状部の外周面から捩れる様にして前記先端面に向って次第に径方向外方へ突出する様に傾斜した面とされることを特徴とするスロッタナイフ。 In a slotter knife comprising a fan-shaped plate portion having a pair of arc-shaped blade portions on both side edges of the outer peripheral surface, and a protruding blade portion provided at one end in the circumferential direction of the outer peripheral surface of the fan-shaped plate portion,
The protruding portion is formed in a quadrangular frustum shape,
A radially outer surface of the protruding blade portion is a front end surface, a surface on one circumferential side is a front end surface, and a surface on the other circumferential side is a rear end surface.
A front edge connected to the front end surface of the tip end surface is inclined with respect to a central axis of a circle along the outer peripheral surface of the sector plate-shaped portion,
The front end surface hangs radially inward from the front edge of the tip surface,
The rear edge connected to the rear end surface of the front end surface is in the same direction as the front edge and is inclined with respect to the central axis from the front edge,
The slotter knife according to claim 1, wherein the rear end surface is a surface inclined so as to be twisted from the outer peripheral surface of the fan-shaped plate-shaped portion and gradually project radially outward toward the front end surface. 請求項１記載のスロッタナイフにおいて、段ボール製包装箱用シートの挿入方向の後端部側の止め代用の切り溝を形成するものであり、前記突刃部の先端面の前縁及び後縁は、前記止め代側が前記周方向他方に向うように傾斜していることを特徴とするスロッタナイフ。   The slotter knife according to claim 1, wherein a cut-off groove for a stop margin on the rear end side in the insertion direction of the cardboard packaging box sheet is formed, and the front edge and the rear edge of the tip surface of the protruding blade part are The slotter knife is inclined so that the stop margin side faces the other circumferential direction.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5897185B1 (en) * 2015-05-19 2016-03-30 近畿刃物工業株式会社 Cutting tool
CN111745356A (en) * 2020-07-06 2020-10-09 潘仲民 Method for forming and processing inner corner post of co-extrusion exterior wall cladding
US11866395B2 (en) 2018-03-07 2024-01-09 1304338 Alberta Ltd. Production of petrochemical feedstocks and products using a fuel cell

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5648635U (en) * 1979-09-18 1981-04-30
JPH0627128U (en) * 1992-09-17 1994-04-12 レンゴー株式会社 Slotter groove cutting tool
JPH10315032A (en) * 1997-05-20 1998-12-02 Zenith Cutter Corp Grooving blade having different phase serration
JP2001287285A (en) * 2000-04-05 2001-10-16 Mitsubishi Heavy Ind Ltd Slotter knife for corrugated fiberboard case manufacturing machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5648635U (en) * 1979-09-18 1981-04-30
JPH0627128U (en) * 1992-09-17 1994-04-12 レンゴー株式会社 Slotter groove cutting tool
JPH10315032A (en) * 1997-05-20 1998-12-02 Zenith Cutter Corp Grooving blade having different phase serration
JP2001287285A (en) * 2000-04-05 2001-10-16 Mitsubishi Heavy Ind Ltd Slotter knife for corrugated fiberboard case manufacturing machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5897185B1 (en) * 2015-05-19 2016-03-30 近畿刃物工業株式会社 Cutting tool
JP2016215302A (en) * 2015-05-19 2016-12-22 近畿刃物工業株式会社 Cutting tool for cutting processing
US11866395B2 (en) 2018-03-07 2024-01-09 1304338 Alberta Ltd. Production of petrochemical feedstocks and products using a fuel cell
CN111745356A (en) * 2020-07-06 2020-10-09 潘仲民 Method for forming and processing inner corner post of co-extrusion exterior wall cladding
CN111745356B (en) * 2020-07-06 2021-06-08 岳阳市天图建筑工程有限公司 Method for forming and processing inner corner post of co-extrusion exterior wall cladding

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