JP5065855B2 - Screw pulling device - Google Patents

Screw pulling device Download PDF

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Publication number
JP5065855B2
JP5065855B2 JP2007281050A JP2007281050A JP5065855B2 JP 5065855 B2 JP5065855 B2 JP 5065855B2 JP 2007281050 A JP2007281050 A JP 2007281050A JP 2007281050 A JP2007281050 A JP 2007281050A JP 5065855 B2 JP5065855 B2 JP 5065855B2
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screw
barrel
tip
bracket
pulling device
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JP2009107194A (en
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利博 小澤
幸治 山本
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Shibaura Machine Co Ltd
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Toshiba Machine Co Ltd
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Description

この発明は、押出機のバレルからスクリュを引抜くためのスクリュ引抜き装置に係り、特にシリンダを用いてスクリュを引抜くスクリュ引抜き装置に関する。   The present invention relates to a screw pulling device for pulling a screw from a barrel of an extruder, and more particularly to a screw pulling device for pulling a screw using a cylinder.

押出機、特に二軸押出機は、バレル内でスクリュがロックした場合、ウインチの力ではスクリュをバレル内から引抜くことができない。このため、従来、特許文献１に開示されたようなシリンダを用いてスクリュを引抜くスクリュ引抜き装置が提案されている。   In an extruder, particularly a twin screw extruder, when the screw is locked in the barrel, the screw cannot be pulled out of the barrel by the force of the winch. For this reason, a screw pulling device that pulls out a screw using a cylinder as disclosed in Patent Document 1 has been proposed.

この特許文献１に開示されたスクリュ引抜き装置は、スクリュの長さに対して短いシリンダを用いてスクリュを引抜くものであるが、このシリンダをレール状の係止体に設けたフック状の係止部に係止させてスクリュを該シリンダの１ストローク分だけ引出し、次いでこのシリンダを移動させて上記レール状の係止体に設けられた次ぎのフック状の係止部に係止させ、さらに、スクリュを該シリンダの１ストローク分だけ引出す。この動作を繰り返してスクリュをバレルから完全に引抜くものである。
実開平５−３５２４５号公報 The screw pulling device disclosed in Patent Document 1 pulls out a screw using a cylinder that is short with respect to the length of the screw. The screw is pulled out by one stroke of the cylinder, and then the cylinder is moved to be locked at the next hook-shaped locking portion provided on the rail-shaped locking body; Then, the screw is pulled out by one stroke of the cylinder. This operation is repeated to completely pull out the screw from the barrel.
Japanese Utility Model Publication No. 5-35245

このスクリュ引抜き装置は、スクリュの長さに対し短いシリンダを用いてスクリュを引抜くことができる利点を有しているが、スクリュの長さに対応した長さのレール状の係止体を必要とし、装置全体としては大型のものとなってしまう。   This screw pulling device has the advantage that the screw can be pulled out using a cylinder that is short with respect to the length of the screw, but a rail-like locking body having a length corresponding to the length of the screw is required. As a result, the entire device becomes large.

この発明は、上記のようなスクリュの長さに対し短いシリンダを用い、かつ装置全体をより小型に抑えることのできるスクリュ引抜き装置を提供することを目的としている。   An object of the present invention is to provide a screw pulling device that uses a short cylinder with respect to the length of the screw as described above and can keep the entire device smaller.

上記目的を達成するため本発明は、押出機のバレルからスクリュを引抜くためのスクリュ引抜き装置であって、バレルの先端に対向して前記スクリュの軸方向に移動自在に配置されたブラケットと、バレルの先端に向け前記スクリュと平行に配置されてブラケットに取り付けられた複数のシリンダと、これらのシリンダから繰出されバレルの先端に当接するプランジャと、スクリュの先端に設けられたネジ穴に螺合するネジを先端に有し、元端はブラケットの反バレル側面に当て板を介して当接可能に形成されたネジ部材と、バレルの先端から突出したスクリュに着脱可能に取り付けられブラケットの反バレル側面に当接可能なクランプ部材を備え、スクリュの引抜き開始時には、ネジ部材をスクリュの先端に螺合し、プランジャを繰出してシリンダ、ブラケット及びネジ部材をバレルの先端から離す方向へ移動させてバレル内にあるスクリュを引出すようにし、スクリュを所定量引き出したならば、ネジ部材をネジ穴から外し、クランプ部材をバレルから突出したスクリュにセットして、プランジャを繰出してシリンダ、ブラケット及びクランプ部材をバレルの先端から離す方向へ移動させてスクリュをバレルから引抜くようにすることを特徴としている。   In order to achieve the above object, the present invention is a screw pulling device for pulling a screw from a barrel of an extruder, a bracket disposed so as to be movable in the axial direction of the screw facing the tip of the barrel, Screwed into a plurality of cylinders that are arranged in parallel to the screw toward the tip of the barrel and attached to the bracket, a plunger that extends from these cylinders and contacts the tip of the barrel, and a screw hole provided at the tip of the screw A screw member that is formed so as to be able to abut on the side of the bracket opposite to the side of the barrel via a contact plate, and a bracket that is detachably attached to the screw protruding from the tip of the barrel. A clamp member that can contact the side surface is provided. At the start of screw extraction, the screw member is screwed into the screw tip and the plunger is extended. The screw, the bracket and the screw member are moved away from the tip of the barrel so that the screw in the barrel is pulled out. When the screw is pulled out by a predetermined amount, the screw member is removed from the screw hole, and the clamp member protrudes from the barrel. The screw is set on the screw, and the plunger is extended to move the cylinder, the bracket and the clamp member away from the tip of the barrel, and the screw is pulled out from the barrel.

なお、ネジ部材の元端とブラケットの反バレル側面との間に着脱可能に取り付けられるスペーサを備えていることが好ましい。   In addition, it is preferable to provide the spacer attached so that attachment or detachment is possible between the original end of a screw member, and the opposite barrel side surface of a bracket.


また、クランプ部材は、スクリュの溝に係合可能な凸部を有していてもよく、さらにまた、この凸部は、スクリュの溝に向かって出入可能なピンからなっていることが好ましい。
Moreover, the clamp member may have a convex part that can be engaged with the groove of the screw, and it is preferable that the convex part is composed of a pin that can be moved in and out toward the groove of the screw.

さらにまた、ブラケットは、床面上を移動自在な架台に取り付けられていてもよい。 Furthermore, the bracket may be attached to a base that is movable on the floor surface.

本発明は、上記のようにスクリュの先端に設けられたネジ穴にネジ部材を螺合し、
シリンダからプランジャをバレル先端に向けて繰出し、シリンダ及びブラケットをバレル
の先端から離す方向へ移動させ、このブラケットを介してネジ部材をバレルの先端から離
す方向へ移動させてバレル内にあるスクリュをバレル先端から引出す。このとき、シリン
ダ、ブラケット及びネジ部材の移動量はシリンダの１ストロークの範囲内である。このスクリュの初期の引抜きにより人力等によりその後の引抜きが可能な場合もある。 In the present invention, the screw member is screwed into the screw hole provided at the tip of the screw as described above,
The plunger is extended from the cylinder toward the barrel tip, the cylinder and bracket are moved away from the barrel tip, and the screw member is moved away from the barrel tip via the bracket to move the screw in the barrel to the barrel. Pull out from the tip. At this time, the movement amounts of the cylinder, bracket and screw member are within the range of one stroke of the cylinder. In some cases, the initial drawing of the screw can be pulled out by human power or the like.

スクリュの先端部分をバレルから引出した後、ネジ部材に代えてクランプ部材をバレルの先端から突出したスクリュに取り付け、上記ネジ部材の場合と同様、シリンダによりブラケットを介してクランプ部材をバレルの先端から離す方向へ移動させてスクリュをさらにシリンダの１ストローク分だけ引出す。次いでプランジャを引っ込めてシリンダ及びブラケットをバレルの先端側へ戻し、クランプ部材を緩めて該クランプ部材をブラケット側へ移動させて再びスクリュに取り付け、上記と同様にシリンダによりブラケットを介してクランプ部材をバレルの先端から離す方向へ移動させてスクリュをさらにシリンダの１ストローク分だけ引出す。これを繰り返してスクリュをバレルから完全に引抜く。このとき、シリンダ、ブラケット及びクランプ部材の移動量はシリンダの１ストロークの範囲内である。 After pulling out the tip of the screw from the barrel, the clamp member is attached to the screw protruding from the tip of the barrel instead of the screw member, and the clamp member is inserted from the tip of the barrel through the bracket by the cylinder as in the case of the screw member. Move it in the direction of release, and pull out the screw for one more stroke of the cylinder. Next, the plunger is retracted, the cylinder and the bracket are returned to the tip of the barrel, the clamp member is loosened, the clamp member is moved to the bracket side and attached to the screw again, and the clamp member is barreled through the bracket by the cylinder in the same manner as described above. Then, the screw is further pulled out by one cylinder stroke. Repeat this and pull the screw completely out of the barrel. At this time, the amount of movement of the cylinder, bracket and clamp member is within the range of one stroke of the cylinder.

上記のように本発明は、いずれも動作範囲がシリンダの１ストロークの範囲内であるため、装置は小型でその動作に必要なスペースもより狭くすることができるという効果を得ることができる。   As described above, since the operating range of the present invention is within the range of one stroke of the cylinder, it is possible to obtain an effect that the device is small and the space required for the operation can be narrowed.

以下、この発明の一実施形態例について図１ないし図４を参照して説明する。図１は、この発明によるスクリュ引抜き装置の概要構成図であり、１０は押出機のバレル、１１はスクリュであり、このスクリュ１１は図１の紙面に垂直な方向に２本配置されている（図２参照）。   An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a schematic configuration diagram of a screw pulling apparatus according to the present invention, 10 is a barrel of an extruder, 11 is a screw, and two screws 11 are arranged in a direction perpendicular to the paper surface of FIG. (See FIG. 2).

１２は、この発明によるスクリュ引抜き装置を構成するブラケットであり、止めネジ１３により高さを調節自在に架台１４に取り付けられている。この架台１４はローラ１５により床面１６上を移動自在に置かれている。   Reference numeral 12 denotes a bracket constituting the screw pulling device according to the present invention, and is attached to the gantry 14 by a set screw 13 so that the height can be adjusted. The gantry 14 is placed on a floor surface 16 by rollers 15 so as to be movable.

ブラケット１２には、バレル１０の先端に向けスクリュ１１と平行に配置可能に２つのシリンダ１７が取り付けられている。これらのシリンダ１７は、２本のスクリュ１１の軸芯の中央に対して対称位置に置かれ、かつ、シリンダ１７から繰出されるプランジャ１８がバレル１０の先端面に当接するように配置されている。   Two cylinders 17 are attached to the bracket 12 so as to be arranged parallel to the screw 11 toward the tip of the barrel 10. These cylinders 17 are placed at symmetrical positions with respect to the center of the axis of the two screws 11, and are arranged so that the plunger 18 fed out from the cylinders 17 abuts on the tip surface of the barrel 10. .

１９は当て板であり、ネジ部材２０が回転及び出入自在に嵌入されている。なお、この当て板１９は、ブラケット１２には取り付けられておらず、ネジ部材２０と共に人手によって持ち運ばれ、図１に示すように、ブラケット１２の反バレル側面に当接可能な位置に置かれるものである。   Reference numeral 19 denotes a contact plate, into which a screw member 20 is fitted so as to be rotatable and retractable. Note that the abutting plate 19 is not attached to the bracket 12 but is carried together with the screw member 20 by hand, and is placed at a position where it can come into contact with the side opposite to the barrel of the bracket 12 as shown in FIG. Is.

ネジ部材２０は、先端にネジ２１を有し、元端には鍔２２を有している。ネジ２１は、スクリュ１１の先端に設けられたネジ穴２３に螺合されるように形成されている。なお、図１において、ネジ穴２３には蓋２４が取り付けられているが、この蓋２４はスクリュ１１を引抜く際に外される。当て板１９と鍔２２の間には、図２に示すようにＥ字型のスペーサ２５がネジ部材２０の上に載るように着脱自在に置かれている。   The screw member 20 has a screw 21 at the tip and has a flange 22 at the base end. The screw 21 is formed to be screwed into a screw hole 23 provided at the tip of the screw 11. In FIG. 1, a lid 24 is attached to the screw hole 23, but this lid 24 is removed when the screw 11 is pulled out. As shown in FIG. 2, an E-shaped spacer 25 is detachably placed between the contact plate 19 and the flange 22 so as to be placed on the screw member 20.

図３は、上記ネジ部材２０に代えてクランプ部材２６を取り付けた状態を示している。このクランプ部材２６は、後述するようにスクリュ１１の先端部をバレル１０から所定量引出した状態にあるとき、スクリュ１１に着脱可能に取り付けられる。   FIG. 3 shows a state in which a clamp member 26 is attached instead of the screw member 20. The clamp member 26 is detachably attached to the screw 11 when the tip of the screw 11 is pulled out from the barrel 10 by a predetermined amount as will be described later.

クランプ部材２６は、図４に示すように、２本のスクリュ１１の外周を上下から挟み込む２つのクランプ片２７からなり、人手により持ち運びが可能であり、クランプネジ２８を人手により締め付けることによってスクリュ１１の長手方向の任意の位置に固定される。なお、このクランプ部材２６は、図１に示した当て板１９と同様、ブラケット１２の反バレル側面に当接可能に形成されている。   As shown in FIG. 4, the clamp member 26 includes two clamp pieces 27 that sandwich the outer periphery of the two screws 11 from above and below, and can be carried manually. The screw 11 is tightened by manually tightening the clamp screw 28. It is fixed at an arbitrary position in the longitudinal direction. In addition, this clamp member 26 is formed so that it can contact | abut to the non-barrel side surface of the bracket 12 similarly to the contact plate 19 shown in FIG.

図３及び図４において下側のクランプ片２７には、スクリュ１１の溝に係合可能に出入されるネジ込み式のピン２９が設けられている。   3 and 4, the lower clamp piece 27 is provided with a screw-in type pin 29 that can be engaged with and removed from the groove of the screw 11.

次いで上記装置によるスクリュ引抜き方法について説明する。まず、架台１４を移動させて図１に示すように、ブラケット１２をバレル１０の先端に対向させる。このとき、シリンダ１７のプランジャ１８は、図１に示すように引込まれており、このプランジャ１８の先端をバレル１０の先端面に当接させる。   Next, a screw drawing method using the above apparatus will be described. First, the gantry 14 is moved so that the bracket 12 faces the tip of the barrel 10 as shown in FIG. At this time, the plunger 18 of the cylinder 17 is retracted as shown in FIG. 1, and the front end of the plunger 18 is brought into contact with the front end surface of the barrel 10.

スクリュ１１の先端の蓋２４は予め外しておき、スペーサ２５を外して当て板１９に嵌入したネジ部材２０を、図１に示すように、ブラケット１２の反バレル側面に持ち込み、先端のネジ２１をスクリュ１１の先端のネジ穴２３に螺合させる。この螺合によりネジ部材２０はスクリュ１１の先端に固定され、当て板１９はネジ部材２０により保持される。   The screw 24 at the tip of the screw 11 is removed in advance, and the screw member 20 with the spacer 25 removed and fitted into the backing plate 19 is brought into the side opposite to the barrel 12 of the bracket 12 as shown in FIG. Screwed into the screw hole 23 at the tip of the screw 11. By this screwing, the screw member 20 is fixed to the tip of the screw 11, and the contact plate 19 is held by the screw member 20.

次いで図示しない油圧源から圧油をシリンダ１７に供給してプランジャ１８を繰出す。このプランジャ１８の繰出しによりシリンダ１７及びブラケット１２は、架台１４を図１において右方へ移動させることによりバレル１０の先端から離れる方向へ移動する。   Next, pressure oil is supplied to the cylinder 17 from a hydraulic source (not shown) and the plunger 18 is fed out. As the plunger 18 is extended, the cylinder 17 and the bracket 12 move in a direction away from the tip of the barrel 10 by moving the gantry 14 to the right in FIG.

このブラケット１２の移動により当て板１９が同じくバレル１０の先端から離れる方向へ移動され、ネジ部材２０の元端の鍔２２に当接し、ネジ部材２０をバレル１０の先端から離れる方向へ移動させ、スクリュ１１をバレル１０内から引出す。   By the movement of the bracket 12, the contact plate 19 is also moved in a direction away from the tip of the barrel 10, abutted against the flange 22 at the former end of the screw member 20, and moved in a direction away from the tip of the barrel 10. The screw 11 is pulled out from the barrel 10.

こうしてシリンダ１７の１ストローク分だけスクリュ１１を引出したところで、プランジャ１８を引込め、架台１４を移動させてブラケット１２をバレル１０の先端側へ移動させる。このとき、スクリュ１１及びネジ部材２０は移動せず、ブラケット１２と当て板１９との間に隙間ができる。そこで、当て板１９をバレル１０の先端側へ移動させ、当て板１９と鍔２２との間に隙間を設け、ここにスペーサ２５を置いて再びプランジャ１８を繰出せば、さらにスクリュ１１を引出すことができる。このスペーサ２５のよる引出しを行えば、短いシリンダ１７で大きく引出すことができる。   When the screw 11 is pulled out by one stroke of the cylinder 17 in this way, the plunger 18 is retracted, the gantry 14 is moved, and the bracket 12 is moved to the tip side of the barrel 10. At this time, the screw 11 and the screw member 20 do not move, and a gap is formed between the bracket 12 and the contact plate 19. Then, if the contact plate 19 is moved to the front end side of the barrel 10 and a gap is provided between the contact plate 19 and the flange 22, the spacer 25 is placed here and the plunger 18 is extended again, the screw 11 is further pulled out. Can do. If the spacer 25 is pulled out, it can be pulled out largely by the short cylinder 17.

こうしてスクリュ１１を所定量引出したならば、ネジ部材２０をネジ穴２３から外し、代わりに図３に示すように、クランプ部材２６をバレル１０から突出したスクリュ１１にセットしてクランプネジ２８を締め付け、クランプ部材２６をスクリュ１１に固定する。   When the screw 11 has been pulled out in this manner, the screw member 20 is removed from the screw hole 23, and instead the clamp member 26 is set on the screw 11 protruding from the barrel 10 and the clamp screw 28 is tightened as shown in FIG. The clamp member 26 is fixed to the screw 11.

次いでプランジャ１８を繰出してブラケット１２をバレル１０の先端から離れる方向へ移動させれば、ブラケット１２がクランプ部材２６に当接してスクリュ１１を引出す。   Next, when the plunger 18 is extended and the bracket 12 is moved away from the tip of the barrel 10, the bracket 12 comes into contact with the clamp member 26 and pulls out the screw 11.

こうしてシリンダ１７の１ストローク分だけスクリュ１１を引出したところで、プランジャ１８を引込めてブラケット１２をバレル１０の先端側へ移動させる。これによりブラケット１２とクランプ部材２６との間に隙間ができるので、クランプネジ２８を緩め、クランプ部材２６をブラケット１２に当接する位置へ移動させて再びクランプする。   Thus, when the screw 11 is pulled out by one stroke of the cylinder 17, the plunger 18 is retracted and the bracket 12 is moved to the tip side of the barrel 10. As a result, a gap is formed between the bracket 12 and the clamp member 26. Therefore, the clamp screw 28 is loosened, the clamp member 26 is moved to a position where it abuts against the bracket 12, and then clamped again.

次いでプランジャ１８を繰出せば、さらに、スクリュ１１をシリンダ１７の１ストローク分だけ引出すことができる。この操作を繰り返すことにより、スクリュ１１を完全に引抜くことができる。なお、この装置によるスクリュ１１の引抜きは、スクリュ１１を完全に引抜くまで行わず、人手により引抜きが可能になるまで行えばよいことは言うまでもない。   Next, when the plunger 18 is extended, the screw 11 can be pulled out by one stroke of the cylinder 17. By repeating this operation, the screw 11 can be completely pulled out. Needless to say, the extraction of the screw 11 by this apparatus is not performed until the screw 11 is completely pulled out and can be pulled out manually.

また、クランプネジ２８による締め付けのみでは、クランプ部材２６がスクリュ１１に対して滑りを生じるような場合には、ピン２９をスクリュ１１の溝に係合させれば、滑りをなくしてより確実にスクリュ１１を引抜くことができる。   Further, when the clamp member 26 slips with respect to the screw 11 only by tightening with the clamp screw 28, if the pin 29 is engaged with the groove of the screw 11, the screw is eliminated more reliably. 11 can be pulled out.

前述した実施形態例においては、床面１６上に移動自在に置かれた架台１４にブラケット１２を取り付けることにより、ブラケット１２をバレル１０の先端に対向可能にする共に、スクリュ１１の軸方向に移動自在とした例を示したが、この発明は、これに限定されず、ブラケット１２を上記のように移動可能にバレル１０の先端や押出機のベース等、押出機側に着脱可能に取り付けるようにしてもよい。   In the above-described embodiment, the bracket 12 is attached to the mount 14 movably placed on the floor 16 so that the bracket 12 can be opposed to the tip of the barrel 10 and moved in the axial direction of the screw 11. Although the present invention has been shown as an example, the present invention is not limited to this, and the bracket 12 is detachably attached to the extruder side such as the tip of the barrel 10 or the base of the extruder so as to be movable as described above. May be.

また、前述した実施形態例においては、プランジャ１８の先端をバレル１０の先端に単に当接させる例を示したが、ネジ等により着脱可能に固定してもよく、さらにまた、クランプ部材２６のクランプは、人手によらず、油圧等を用いたクランプとしてもよく、さらにまた、スクリュ１１の溝に係合するピン２９はクランプ片２７の内面に単に突出した凸部としてもよいなど種々変形実施可能である。   In the above-described embodiment, the tip of the plunger 18 is simply brought into contact with the tip of the barrel 10. However, the plunger 18 may be detachably fixed with a screw or the like. Can be clamped using hydraulic pressure or the like without depending on the hand, and the pin 29 engaged with the groove of the screw 11 may be a convex portion that simply projects on the inner surface of the clamp piece 27. It is.

この発明は、押出機のようにスクリュ１１を先端側から引抜く方式のスクリュ引抜き装置に適用される。   The present invention is applied to a screw pulling apparatus that pulls the screw 11 from the tip side like an extruder.

この発明によるスクリュ引抜き装置の一実施形態例を示す概要構成図。BRIEF DESCRIPTION OF THE DRAWINGS The schematic block diagram which shows one embodiment of the screw extraction apparatus by this invention. 図１のＡ−Ａ線による断面図。Sectional drawing by the AA line of FIG. 図１のネジ部材をクランプ部材に代えた状態を示す要部概要構成図。The principal part schematic block diagram which shows the state which replaced the screw member of FIG. 1 with the clamp member. 図３の右側面図。FIG. 4 is a right side view of FIG. 3.

符号の説明Explanation of symbols

１０ バレル
１１ スクリュ
１２ ブラケット
１３ 止めネジ
１４ 架台
１５ ローラ
１６ 床面
１７ シリンダ
１８ プランジャ
１９ 当て板
２０ ネジ部材
２１ ネジ
２２ 鍔
２３ ネジ穴
２４ 蓋
２５ スペーサ
２６ クランプ部材
２７ クランプ片
２８ クランプネジ
２９ ピン DESCRIPTION OF SYMBOLS 10 Barrel 11 Screw 12 Bracket 13 Set screw 14 Base 15 Roller 16 Floor surface 17 Cylinder 18 Plunger 19 Contact plate 20 Screw member 21 Screw 22 鍔 23 Screw hole 24 Lid 25 Spacer 26 Clamp member 27 Clamp piece 28 Clamp screw 29 Pin

Claims (5)

押出機のバレルからスクリュを引抜くためのスクリュ引抜き装置であって、前記バレルの先端に対向して前記スクリュの軸方向に移動自在に配置されたブラケットと、前記バレルの先端に向け前記スクリュと平行に配置されて前記ブラケットに取り付けられた複数のシリンダと、これらのシリンダから繰出され前記バレルの先端に当接するプランジャと、前記スクリュの先端に設けられたネジ穴に螺合するネジを先端に有し、元端は前記ブラケットの反バレル側面に当て板を介して当接可能に形成されたネジ部材と、前記バレルの先端から突出した前記スクリュに着脱可能に取り付けられ前記ブラケットの反バレル側面に当接可能なクランプ部材を備え、前記スクリュの引抜き開始時には、前記ネジ部材を前記スクリュの先端に螺合し、前記プランジャを繰出して前記シリンダ、ブラケット及びネジ部材を前記バレルの先端から離す方向へ移動させて前記バレル内にある前記スクリュを引出すようにし、前記スクリュを所定量引き出したならば、前記ネジ部材をネジ穴から外し、前記クランプ部材を前記バレルから突出した前記スクリュにセットして、前記プランジャを繰出して前記シリンダ、ブラケット及びクランプ部材を前記バレルの先端から離す方向へ移動させて前記スクリュを前記バレルから引抜くようにすることを特徴としたスクリュ引抜き装置。A screw pulling device for pulling a screw out of a barrel of an extruder, the bracket being arranged to be movable in the axial direction of the screw so as to face the tip of the barrel, and the screw toward the tip of the barrel A plurality of cylinders that are arranged in parallel and attached to the bracket, a plunger that extends from these cylinders and contacts the tip of the barrel, and a screw that is screwed into a screw hole provided at the tip of the screw A screw member formed so as to be able to come into contact with an opposite barrel side surface of the bracket via a contact plate, and a front end side surface of the bracket that is detachably attached to the screw protruding from the tip of the barrel. A clamp member capable of abutting on the screw, and at the start of pulling out the screw, the screw member is screwed to the tip of the screw, When the ranger is extended to move the cylinder, bracket and screw member away from the tip of the barrel so that the screw in the barrel is pulled out, and the screw is pulled out by a predetermined amount, the screw member is screwed The clamp member is removed from the hole, the clamp member is set on the screw projecting from the barrel, the plunger is extended, and the cylinder, bracket and clamp member are moved away from the tip of the barrel to remove the screw from the barrel. A screw pulling device characterized by being pulled out. 前記ネジ部材の元端と前記ブラケットの反バレル側面との間に着脱可能に取り付けられるスペーサを備えたことを特徴とする請求項１に記載のスクリュ引抜き装置。 The screw pulling device according to claim 1, further comprising a spacer that is detachably attached between a base end of the screw member and an opposite barrel side surface of the bracket. 前記クランプ部材は、前記スクリュの溝に係合可能な凸部を有することを特徴とする請求項１または２に記載のスクリュ引抜き装置。 The screw pulling device according to claim 1 , wherein the clamp member has a convex portion engageable with a groove of the screw. 前記凸部は、前記スクリュの溝に向かって出入可能なピンからなることを特徴とする請求項３に記載のスクリュ引抜き装置。 The screw pulling device according to claim 3 , wherein the convex portion is a pin that can be moved in and out toward the groove of the screw. 前記ブラケットは、床面上を移動自在な架台に取り付けられていることを特徴とする請求項１乃至４に記載のスクリュ引抜き装置。 The screw pulling device according to any one of claims 1 to 4 , wherein the bracket is attached to a base that is movable on a floor surface.
JP2007281050A 2007-10-30 2007-10-30 Screw pulling device Active JP5065855B2 (en)

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KR101334034B1 (en) 2013-07-08 2013-11-28 주식회사 씨맥 Device for extracting screw in compression machine
CN108908889A (en) * 2018-09-26 2018-11-30 安徽世界村智能装备有限公司 A kind of double-screw extruder screw draw-off gear and method
AU2020293627B2 (en) * 2019-06-11 2023-02-02 Bühler AG Extruder screw handling device

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JPS60154026A (en) * 1984-01-21 1985-08-13 Meiki Co Ltd Injection molding machine with screw exchanger
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