JP2005262527A - Crosshead for extruder - Google Patents

Crosshead for extruder Download PDF

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Publication number
JP2005262527A
JP2005262527A JP2004075706A JP2004075706A JP2005262527A JP 2005262527 A JP2005262527 A JP 2005262527A JP 2004075706 A JP2004075706 A JP 2004075706A JP 2004075706 A JP2004075706 A JP 2004075706A JP 2005262527 A JP2005262527 A JP 2005262527A
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jig
crosshead
cartridge
annular fastening
mounting portion
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Japanese (ja)
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Ryozo Atsumi
良三 渥美
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Sumitomo Wiring Systems Ltd
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Sumitomo Wiring Systems Ltd
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Priority to JP2004075706A priority Critical patent/JP2005262527A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a crosshead for an extruder capable of clamping a cartridge and a crosshead body more rapidly. <P>SOLUTION: The crosshead 1 for the extruder is constituted so that a key projection 7c is provided on the inner peripheral surface 7b of an annular clamping fixture 7 and a key groove 51h, which has the guide groove part 51i into which the key projection 7c of the annular clamping fixture 7 is introduced when the annular clamping fixture 7 is fitted in a fixture attaching part 51b and a lock groove part 51j extending in the almost peripheral direction of the fixture attaching part 51b from the guide groove part 51i to guide the key projection 7c of the annular clamping fixture 7 so that the annular clamping fixture 7 is clamped toward the crosshead body 3 when the annular clamping fixture 7 is fitted in the fixture attaching part 51b to be rotated centering around the fixture attaching part 51b, is provided on the outer peripheral surface of the fixture attaching part 51b of the cartridge 5. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、自動車等に搭載される被覆電線を製造する押出機等の各種押出機に用いられる押出機用クロスヘッドに関する。   The present invention relates to a crosshead for an extruder used in various extruders such as an extruder for producing a coated electric wire mounted on an automobile or the like.

この種の従来の押出機用クロスヘッドでは、ニップル及びダイスが組み込まれたカートリッジとクロスヘッド本体との締結は、締付ナットを用いて行われる。即ち、図５の様に、カートリッジ５００の治具取付部５００ａの外周面上にネジ山を螺刻しておき、クロスヘッド本体５０１の例えばテーパ円柱状の嵌合凹部５０１ａにカートリッジ５００を嵌合して、該カートリッジ５００の治具取付部５００ａをクロスヘッド本体５０１の嵌合凹部５０１ａの底部に設けた貫通孔５０１ｂから突出させた状態で、該治具取付部５００ａにその内周面にネジ山が螺刻された締付ナット５０３を螺合する。これにより、カートリッジ５００とクロスヘッド本体５０１とが締結される。尚、締付ナット５０３の治具取付部５００ａへの螺合は、スパナ等の治工具を用いて手作業で行われる。   In this type of conventional crosshead for an extruder, the cartridge incorporating the nipple and the die and the crosshead main body are fastened using a tightening nut. That is, as shown in FIG. 5, a screw thread is screwed on the outer peripheral surface of the jig mounting portion 500a of the cartridge 500, and the cartridge 500 is fitted into the fitting recess 501a having a tapered cylindrical shape, for example. Then, the jig mounting portion 500a of the cartridge 500 is protruded from the through hole 501b provided at the bottom of the fitting recess 501a of the crosshead body 501, and the jig mounting portion 500a is screwed to the inner peripheral surface thereof. The fastening nut 503 in which the mountain is threaded is screwed. Thereby, the cartridge 500 and the crosshead main body 501 are fastened. The tightening nut 503 is screwed into the jig mounting portion 500a manually using a jig tool such as a spanner.

締付ナット５０３を用いた場合、締付ナット５０３をカートリッジ５００の治具取付部５００ａの奥側まで締めるのに、締付ナット５０３を相当な回数回す必要がある為、締結作業に思いの外時間が掛かるという欠点がある。尚、測定結果では締付ナット５０３を最後まで締めるのに約１８秒掛かった。   When the tightening nut 503 is used, it is necessary to turn the tightening nut 503 a considerable number of times in order to tighten the tightening nut 503 to the inner side of the jig mounting portion 500a of the cartridge 500. There is a drawback of hanging. In the measurement results, it took about 18 seconds to tighten the tightening nut 503 to the end.

そこで、この発明の課題は、より手早くカートリッジとクロスヘッド本体との締結ができる押出機用クロスヘッドを提供することにある。   Accordingly, an object of the present invention is to provide a crosshead for an extruder that can fasten a cartridge and a crosshead main body more quickly.

上記課題を解決する為には、請求項１に記載の発明は、治具取付部が突設されたカートリッジと、前記カートリッジが嵌合される嵌合凹部が設けられて前記嵌合凹部の底部に前記カートリッジの前記治具取付部が貫通される貫通孔が設けられたクロスヘッド本体と、前記クロスヘッド本体の前記嵌合凹部に前記カートリッジが嵌合されて前記カートリッジの前記治具取付部が前記クロスヘッド本体の前記貫通孔から突出された状態で、該治具取付部に環装されて前記カートリッジを前記クロスヘッド本体に締結させる環状締結治具とを備えた押出機用クロスヘッドであって、前記環状締結治具の内周面上にキー突起が凸設されると共に、前記カートリッジの前記治具取付部の外周面上に、前記環状締結治具が前記治具取付部に嵌め込まれた際に前記環状締結治具の前記キー突起が導入されるガイド溝部と、前記ガイド溝部から前記治具取付部の略周方向に延設されてなり、前記環状締結治具が前記治具取付部に嵌め込まれた状態で前記治具取付部を中心に回転された際に、前記環状締結治具が前記クロスヘッド本体側に締め寄せられる様に、前記環状締結治具の前記キー突起を誘導するロック溝部とからなるキー溝が凹設されるものである。   In order to solve the above-mentioned problem, the invention according to claim 1 is provided with a cartridge provided with a jig mounting portion and a fitting recess into which the cartridge is fitted, so that the bottom of the fitting recess is provided. A cross head body provided with a through-hole through which the jig mounting portion of the cartridge is passed, and the jig mounting portion of the cartridge is fitted into the fitting recess of the cross head body. An extruder crosshead comprising an annular fastening jig that is mounted around the jig mounting portion and fastens the cartridge to the crosshead body in a state of protruding from the through hole of the crosshead body. A key protrusion is projected on the inner peripheral surface of the annular fastening jig, and the annular fastening jig is fitted into the jig attaching portion on the outer peripheral surface of the jig attaching portion of the cartridge. When A guide groove portion into which the key projection of the annular fastening jig is introduced, and extends from the guide groove portion in a substantially circumferential direction of the jig attachment portion, and the annular fastening jig is fitted into the jig attachment portion. Lock groove for guiding the key projection of the annular fastening jig so that the annular fastening jig is tightened to the crosshead main body side when rotated around the jig mounting portion A keyway consisting of is recessed.

請求項２に記載の発明は、前記環状締結治具には、その外周方向に突出する様にハンドル部が設けられるものである。   According to a second aspect of the present invention, the annular fastening jig is provided with a handle portion so as to protrude in the outer peripheral direction.

請求項１に記載の発明によれば、従来の様にネジ山が螺刻される代わりに、環状締結治具の内周面上にキー突起が凸設されると共に、カートリッジの治具取付部の外周面上に、前記環状締結治具が前記治具取付部に嵌め込まれた際に前記環状締結治具の前記キー突起が導入されるガイド溝部と、前記ガイド溝部から前記治具取付部の略周方向に延設されてなり、前記環状締結治具が前記治具取付部に嵌め込まれた状態で前記治具取付部を中心に回転された際に、前記環状締結治具が前記クロスヘッド本体側に締め寄る様に、前記環状締結治具の前記キー突起を誘導するロック溝部とからなるキー溝が凹設される為、従来の締付ナットの様に何度も回転させること無く環状締結治具を締めることができ、これにより、より手早くカートリッジとクロスヘッド本体とを締結できる。   According to the first aspect of the present invention, instead of being threaded as in the prior art, the key protrusion is projected on the inner peripheral surface of the annular fastening jig, and the jig mounting portion of the cartridge A guide groove portion into which the key projection of the annular fastening jig is introduced when the annular fastening jig is fitted into the jig mounting portion on the outer peripheral surface of the jig mounting portion; When the annular fastening jig is rotated around the jig mounting portion in a state where the annular fastening jig is fitted in the jig mounting portion, the annular fastening jig is moved to the cross head. Since the key groove consisting of the lock groove part that guides the key protrusion of the annular fastening jig is recessed so that it closes to the main body side, it does not rotate repeatedly like a conventional tightening nut. The fastening jig can be tightened. It can be entered into and Rosuheddo body.

請求項２に記載の発明によれば、環状締結治具には、その外周方向に突出する様にハンドル部が設けられる為、そのハンドル部を介して手作業で環状締結治具を締めることができ、即ちスパナ等の治工具が不要となり、より一層手早く締結作業を行える。   According to the invention described in claim 2, since the handle portion is provided in the annular fastening jig so as to protrude in the outer peripheral direction, the annular fastening jig can be manually tightened through the handle portion. That is, a jig such as a spanner is not required, and the fastening operation can be performed more quickly.

この実施の形態の押出機用クロスヘッド１は、被覆電線を製造する押出機に用いられるものであり、図１の様に、クロスヘッド本体３と、クロスヘッド本体３に着脱自在に組み付けられるカートリッジ５と、カートリッジ５とクロスヘッド本体３とを締結する環状締結治具７とを備える。   The crosshead 1 for an extruder according to this embodiment is used in an extruder for manufacturing a covered electric wire. As shown in FIG. 1, the crosshead main body 3 and a cartridge that is detachably assembled to the crosshead main body 3 are used. 5 and an annular fastening jig 7 for fastening the cartridge 5 and the crosshead body 3 to each other.

クロスヘッド本体３は、図１の様に側面視断面が例えば矩形のブロック体に形成される。クロスヘッド本体３の一側面には、カートリッジ５が嵌合される嵌合凹部（ここではテーパ円柱形の嵌合凹部）３ａが設けられ、該嵌合凹部３ａの底部には、カートリッジ５の後述の治具取付部５１ｂが貫通される貫通孔３ｂが設けられる。クロスヘッド本体３の内部には、前記嵌合凹部３ａの内側面に連通する樹脂流路３ｃが設けられる。   As shown in FIG. 1, the crosshead main body 3 is formed in a block body whose side view cross section is rectangular, for example. A fitting recess (here, a tapered cylindrical fitting recess) 3a into which the cartridge 5 is fitted is provided on one side surface of the crosshead main body 3, and the bottom of the fitting recess 3a has a cartridge 5 described later. A through hole 3b through which the jig mounting portion 51b is penetrated is provided. Inside the cross head body 3, a resin flow path 3c communicating with the inner surface of the fitting recess 3a is provided.

カートリッジ５は、治具取付部５１ｂが突設されたカートリッジ本体５１内にニップル５３及びダイス５５が組み込まれて構成される。   The cartridge 5 is configured by incorporating a nipple 53 and a die 55 in a cartridge main body 51 from which a jig mounting portion 51b is projected.

ここでは、ニップル５３は、例えば、その一端部５３ａがテーパ円柱形に形成されその他端部５３ｂが円錐台形に形成された略紡錘体に形成される。ニップル５３の中心軸上には、被覆電線用の芯線が搬送される搬送孔５３ｃが設けられる。ダイス５５は、図１の様に側面視断面が例えば矩形のブロック体に形成される。ダイス５５の一側面には、ニップル５３の円錐台形の他端部５３ｂが離間配置される円錐台状凹部５５ａが形成され、該円錐台状凹部５５ａの底部には、製造された被覆電線が送出される開口孔５５ｂが設けられる。   Here, for example, the nipple 53 is formed in a substantially spindle body having one end 53a formed in a tapered cylindrical shape and the other end 53b formed in a truncated cone. On the central axis of the nipple 53, a transport hole 53c through which the core wire for the covered electric wire is transported is provided. As shown in FIG. 1, the die 55 is formed in a block body having a rectangular cross section in a side view. On one side surface of the die 55, a truncated cone-shaped recess 55a in which the other end 53b of the truncated cone shape of the nipple 53 is spaced is formed. An opening hole 55b is provided.

カートリッジ本体５１は、ここではクロスヘッド本体３の嵌合凹部３ａにテーパ嵌合する様に略テーパ筒状に形成される。より詳細には、カートリッジ本体５１は、その基端側からその先端側に徐々に縮径した外径を有するテーパ筒部５１ａを有し、該テーパ筒部５１ａの先端に該先端の外径と同寸の外径を有する円筒部（治具取付部）５１ｂが設けられると共に、該テーパ筒部５１ａの基端に該基端の外径より大寸の外径を有する円筒部（ダイス取付部）５１ｃが設けられて形成される。カートリッジ本体５１の筒孔５１ｄは、ニップル５３がテーパ嵌合状に収納配設される部分であり、その基端開口からその先端開口に向かって徐々に縮径したテーパ状に形成される。筒孔５１ｄのダイス取付部５１ｃ側の開口には、ダイス５５が嵌合される嵌合凹部５１ｅが形成される。テーパ筒部５１ａの外周面には、カートリッジ５がクロスヘッド本体３の嵌合凹部３ａに嵌合された状態でクロスヘッド本体３の樹脂流路３ｃと連通する凹状溝５１ｆが周設され、該凹状溝５１ｆ内には、周方向に沿って筒孔５１ｄに連通する複数の連通孔５１ｇが設けられる。   Here, the cartridge main body 51 is formed in a substantially tapered cylindrical shape so as to be taper-fitted into the fitting recess 3 a of the crosshead main body 3. More specifically, the cartridge main body 51 has a tapered cylindrical portion 51a having an outer diameter gradually reduced in diameter from the proximal end side to the distal end side, and the outer diameter of the distal end is formed at the distal end of the tapered cylindrical portion 51a. A cylindrical portion (die mounting portion) 51b having the same outer diameter is provided, and a cylindrical portion (die mounting portion) having an outer diameter larger than the outer diameter of the proximal end at the proximal end of the tapered tubular portion 51a. ) 51c is provided. The cylindrical hole 51d of the cartridge main body 51 is a portion where the nipple 53 is housed and arranged in a taper fitting shape, and is formed in a tapered shape having a diameter gradually reduced from the base end opening toward the tip opening. A fitting recess 51e into which the die 55 is fitted is formed in the opening on the die attachment portion 51c side of the cylindrical hole 51d. A concave groove 51f that communicates with the resin flow path 3c of the crosshead main body 3 in a state where the cartridge 5 is fitted in the fitting concave portion 3a of the crosshead main body 3 is provided around the outer peripheral surface of the tapered cylinder portion 51a. A plurality of communication holes 51g that communicate with the cylindrical hole 51d are provided along the circumferential direction in the concave groove 51f.

又、治具取付部５１ｂの外周面には、図１〜図３の様に、環状締結治具７の後述のキー突起７ｃが誘導案内されるキー溝５１ｈが凹設される。ここでは、キー溝５１ｈは、治具取付部５１ｂの筒軸に対称的に一対設けられる。このキー溝５１ｈは、環状締結治具７が治具取付部５１ｂに嵌め込まれた際に環状締結治具７のキー突起７ｃが導入されるガイド溝部５１ｉと、該ガイド溝部５１ｉから治具取付部５１ｂの略周方向に延設されてなり、環状締結治具７が治具取付部５１ｂに嵌め込まれた状態で治具取付部５１ｂを中心に回転された際に、環状締結治具７がクロスヘッド本体３側に締め寄せられる様に、環状締結治具７のキー突起７ｃを誘導するロック溝部５１ｊとからなる。   Further, as shown in FIGS. 1 to 3, a key groove 51 h into which a key projection 7 c described later of the annular fastening jig 7 is guided and guided is provided on the outer peripheral surface of the jig mounting portion 51 b. Here, a pair of key grooves 51h are provided symmetrically on the cylinder axis of the jig mounting portion 51b. The key groove 51h includes a guide groove portion 51i into which the key projection 7c of the annular fastening jig 7 is introduced when the annular fastening jig 7 is fitted into the jig attachment portion 51b, and a jig attachment portion from the guide groove portion 51i. When the annular fastening jig 7 is rotated around the jig mounting portion 51b with the annular fastening jig 7 fitted in the jig mounting portion 51b, the annular fastening jig 7 is crossed. The lock groove 51j guides the key projection 7c of the annular fastening jig 7 so as to be tightened toward the head body 3 side.

ここでは、ガイド溝部５１ｉは、例えば、治具取付部５１ｂの先端面から治具取付部５１ｂの筒軸方向の略中央位置までの区間を筒軸方向に沿って真直に形成されてなる。ガイド溝部５１ｉの治具取付部先端側の一端部５１ｋは、治具取付部５１ｂの先端面上で開放されている。ロック溝部５１ｊは、ガイド溝部５１ｉの治具取付部基端側の他端部５１ｍから治具取付部５１ｂの略周方向に（より詳細には例えば治具取付部５１ｂの基端側に徐々に接近する様に略周方向に）延設されてなる。ロック溝部５１ｊの長さは、治具取付部５１ｂの周方向長の例えば４分の１程度（中心角にして例えば６０°〜８０°）の長さに形成される。   Here, the guide groove portion 51i is formed, for example, in a straight line along the cylinder axis direction from the tip surface of the jig attachment portion 51b to the substantially central position in the cylinder axis direction of the jig attachment portion 51b. One end 51k on the distal end side of the jig mounting portion 51i of the guide groove 51i is open on the distal end surface of the jig mounting portion 51b. The lock groove 51j gradually extends from the other end 51m on the base end side of the jig mounting portion of the guide groove portion 51i to a substantially circumferential direction of the jig mounting portion 51b (more specifically, for example, gradually toward the base end side of the jig mounting portion 51b). It is extended so as to approach (substantially in the circumferential direction). The length of the lock groove 51j is formed to be, for example, about one quarter of the circumferential length of the jig mounting portion 51b (for example, 60 ° to 80 ° as a central angle).

この様に形成されたカートリッジ本体５１に於いては、ニップル５３は、その一端部５３ａがカートリッジ本体５１の筒孔５１ｄにテーパ嵌合する様に該筒孔５１ｄ内に収納されて組み付けられる。ダイス５５は、その円錐台状凹部５５ａがカートリッジ本体５１の内側を向く様にしてカートリッジ本体５１の嵌合凹部５１ｅ内に組み付けられる。この組付状態では、ダイス５５の開口孔５５ｂの真後にニップル５３の搬送孔５３ｃの一端開口が離間配置される。又、ニップル５３の円柱形の中央部５３ｄとカートリッジ５の筒孔５１ｄとの間にカートリッジ５の連通孔５１ｇと連通する円筒壁状間隙５ａが形成されると共に、ダイス５５の円錐台状凹部５５ａとニップル５３の円錐台形の他端部５３ｂとの間に前記円筒壁状間隙５ａと連通する円錐壁状間隙５ｂが形成されて、カートリッジ本体５１の凹状溝５１ｆから連通孔５１ｇ、前記の間隙５ａ，５ｂを経てダイス５５の開口孔５５ｂに至る樹脂流路が構成される。   In the cartridge main body 51 formed in this way, the nipple 53 is housed and assembled in the cylindrical hole 51d so that one end 53a thereof is taper-fitted to the cylindrical hole 51d of the cartridge main body 51. The die 55 is assembled in the fitting recess 51e of the cartridge main body 51 so that the truncated cone-shaped recess 55a faces the inside of the cartridge main body 51. In this assembled state, the one end opening of the conveying hole 53c of the nipple 53 is disposed just behind the opening hole 55b of the die 55. In addition, a cylindrical wall-shaped gap 5 a that communicates with the communication hole 51 g of the cartridge 5 is formed between the cylindrical central portion 53 d of the nipple 53 and the cylindrical hole 51 d of the cartridge 5, and the truncated cone-shaped recess 55 a of the die 55. And a conical wall-shaped gap 5b communicating with the cylindrical wall-shaped gap 5a is formed between the other end 53b of the frustoconical shape of the nipple 53. , 5b and a resin flow path reaching the opening hole 55b of the die 55 is formed.

尚、この押出機用クロスヘッド１では、クロスヘッド本体３の樹脂流路３ｃからカートリッジ５の凹状溝５１ｆに供給された被覆電線用の溶融樹脂（図示省略）は、カートリッジ５の前記樹脂流路（５１ｆ，５１ｇ，５ａ，５ｂ及び５５ｂ）を通ってダイス５５の開口孔５５ｂから送出される。そして、これに並行して、被覆電線用の芯線（図示省略）が一側（紙面上左）からニップル５３の搬送孔５３ｃ及びダイス５５の開口孔５５ｂを通じて他側（紙面上右）に送出されて、ダイス５５の開口孔５５ｂで、送出されるその芯線の外周に、送出されてくる前記溶融樹脂が被覆されて、これにより前記芯線が被覆電線に仕立てられて開口孔５５ｂが送出される。この様にして被覆電線が製造される。   In the extruder crosshead 1, the molten resin (not shown) for the covered wire supplied from the resin flow path 3 c of the crosshead body 3 to the concave groove 51 f of the cartridge 5 is the resin flow path of the cartridge 5. (51f, 51g, 5a, 5b and 55b) are sent out from the opening hole 55b of the die 55. In parallel with this, a core wire (not shown) for the covered electric wire is sent from one side (left on the paper surface) to the other side (right on the paper surface) through the conveying hole 53c of the nipple 53 and the opening hole 55b of the die 55. Then, the outer periphery of the core wire to be sent is covered with the molten resin that is sent out by the opening hole 55b of the die 55, whereby the core wire is tailored into a covered electric wire and the opening hole 55b is sent out. In this way, a covered electric wire is manufactured.

環状締結治具７は、図１及び図４の様に、短尺で筒壁が肉厚の筒体に形成される。環状締結治具７の外周面７ａは、例えば６角ナットの様に６角形に形成される。環状締結治具７の内周面（筒孔）７ｂは、カートリッジ５の治具取付部５１ｂに嵌合されるべく、治具取付部５１ｂの外径と略同寸の円形に形成される。環状締結治具７の内周面７ｂには、その筒軸方向の略中央位置に例えば円柱状のキー突起７ｃが凸設される。ここでは、キー突起７ｃは、環状締結治具７の筒軸に対称的に一対設けられる。環状締結治具７の例えば外周面７ａには、その外周方向に突出する様に棒状のハンドル部７ｄが設けられる（尚、ハンドル部７ｄは別に無くても構わない）。   As shown in FIGS. 1 and 4, the annular fastening jig 7 is formed into a short tubular body with a short tubular wall. The outer peripheral surface 7a of the annular fastening jig 7 is formed in a hexagonal shape like a hexagonal nut, for example. An inner peripheral surface (cylinder hole) 7 b of the annular fastening jig 7 is formed in a circular shape that is approximately the same size as the outer diameter of the jig attachment portion 51 b so as to be fitted into the jig attachment portion 51 b of the cartridge 5. On the inner peripheral surface 7b of the annular fastening jig 7, for example, a columnar key protrusion 7c is projected at a substantially central position in the cylinder axis direction. Here, a pair of key protrusions 7 c are provided symmetrically on the cylinder axis of the annular fastening jig 7. For example, the outer peripheral surface 7a of the annular fastening jig 7 is provided with a rod-like handle portion 7d so as to protrude in the outer peripheral direction (the handle portion 7d may not be provided separately).

この環状締結治具７は、クロスヘッド本体３の嵌合凹部３ａにカートリッジ５のカートリッジ本体５１がテーパ嵌合されてカートリッジ５の治具取付部５１ｂがクロスヘッド本体３の貫通孔３ｂから突出された状態で、該治具取付部５１ｂに環装される。以下にその環装手順を説明する。先ず、環状締結治具７のキー突起７ｃが治具取付部５１ｂのキー溝５１ｈのガイド溝部５１ｉ内に導入される様にして、環状締結治具７を治具取付部５１ｂの外周に嵌め込む。そして、この嵌込状態で、手作業でハンドル部７ｄを介して（尚、ハンドル部７ｄが無い場合はスパナ等の治工具を用いて）環状締結治具７を治具取付部５１ｂを中心に４分の１回転程度回転させる。この回転に伴って環状締結治具７のキー突起７ｃが治具取付部５１ｂのキー溝５１ｈのロック溝部５１ｊに沿って誘導されて、これにより環状締結治具７がクロスヘッド本体３側に締め寄せられる。この締寄状態では、環状締結治具７とクロスヘッド本体３との対向面が突っ張り合って、環状締結治具７が緩み防止状に固定されると共に、カートリッジ５とクロスヘッド本体３とが締結される。   In the annular fastening jig 7, the cartridge body 51 of the cartridge 5 is taper-fitted into the fitting recess 3 a of the crosshead body 3, and the jig mounting portion 51 b of the cartridge 5 is protruded from the through hole 3 b of the crosshead body 3. In this state, the jig is mounted on the jig mounting portion 51b. The procedure for the ringing will be described below. First, the annular fastening jig 7 is fitted into the outer periphery of the jig mounting portion 51b so that the key protrusion 7c of the annular fastening jig 7 is introduced into the guide groove portion 51i of the key groove 51h of the jig mounting portion 51b. . Then, in this fitted state, the annular fastening jig 7 is centered on the jig mounting portion 51b through the handle portion 7d by hand (with a jig such as a spanner if there is no handle portion 7d). Rotate about a quarter turn. Along with this rotation, the key projection 7c of the annular fastening jig 7 is guided along the lock groove 51j of the key groove 51h of the jig mounting part 51b, whereby the annular fastening jig 7 is fastened to the crosshead body 3 side. It is sent. In this tightened state, the opposing surfaces of the annular fastening jig 7 and the crosshead body 3 are stuck together, and the annular fastening jig 7 is fixed in a slack-proof manner, and the cartridge 5 and the crosshead body 3 are fastened. Is done.

以上の様に構成された押出機用クロスヘッド１によれば、従来の様にネジ山が螺刻される代わりに、環状締結治具７の内周面７ｂ上にキー突起７ｃが凸設されると共に、カートリッジ５の治具取付部５１ｂの外周面上に、環状締結治具７が治具取付部５１ｂに嵌め込まれた際に環状締結治具７のキー突起７ｃが導入されるガイド溝部５１ｉと、ガイド溝部５１ｉから治具取付部５１ｂの略周方向に延設されてなり、環状締結治具７が治具取付部５１ｂに嵌め込まれた状態で治具取付部５１ｂを中心に回転された際に、環状締結治具７がクロスヘッド本体３側に締め寄せられる様に、環状締結治具７のキー突起７ｃを誘導するロック溝部５１ｊとを有するキー溝５１ｈが凹設される為、従来の締付ナットの様に何度も回転させること無く環状締結治具７を締めることができ、これにより、より手早くカートリッジ５とクロスヘッド本体３とを締結できる。尚、測定結果では、環状締結治具７を最後まで締めるのに約３秒で締結できた。   According to the crosshead 1 for an extruder configured as described above, the key protrusion 7c is projected on the inner peripheral surface 7b of the annular fastening jig 7, instead of being threaded as in the prior art. At the same time, on the outer peripheral surface of the jig mounting portion 51b of the cartridge 5, the guide groove portion 51i into which the key projection 7c of the annular fastening jig 7 is introduced when the annular fastening jig 7 is fitted into the jig mounting portion 51b. And extending in the substantially circumferential direction of the jig mounting portion 51b from the guide groove portion 51i, and rotated around the jig mounting portion 51b with the annular fastening jig 7 fitted in the jig mounting portion 51b. At this time, the key groove 51h having the lock groove portion 51j for guiding the key projection 7c of the annular fastening jig 7 is recessed so that the annular fastening jig 7 is tightened to the crosshead body 3 side. The ring tightening without rotating many times like the tightening nut You can tighten the jig 7, which allows fastening the more quickly the cartridge 5 and the cross head body 3. As a result of the measurement, it was possible to fasten the annular fastening jig 7 in about 3 seconds to complete the fastening.

又、環状締結治具７には、その外周方向に突出する様にハンドル部７ｄが設けられる為、そのハンドル部７ｄを介して手作業で環状締結治具７を締めることができ、即ちスパナ等の治工具が不要となり、より一層手早く締結作業を行える。   Further, since the annular fastening jig 7 is provided with a handle portion 7d so as to protrude in the outer peripheral direction, the annular fastening jig 7 can be manually tightened through the handle portion 7d, that is, a spanner or the like. This eliminates the need for jigs and tools, and makes fastening work even quicker.

本発明の実施の形態に係る押出機用クロスヘッドの側面視断面図である。It is side surface sectional drawing of the crosshead for extruders concerning embodiment of this invention. 図１の治具取付部５１ｂの矢示方向Ｐ１からの平面図である。It is a top view from the arrow direction P1 of the jig attachment part 51b of FIG. 図１の治具取付部５１ｂの矢示方向Ｐ２からの正面図である。It is a front view from the arrow direction P2 of the jig attachment part 51b of FIG. 図１の環状締結治具７の矢示方向Ｐ２からの正面図である。It is a front view from the arrow direction P2 of the cyclic | annular fastening jig | tool 7 of FIG. 従来の押出機用クロスヘッドの側面視概略図である。It is a schematic side view of a conventional crosshead for an extruder.

符号の説明Explanation of symbols

１ 押出機用クロスヘッド
３ クロスヘッド本体
３ａ 嵌合凹部
３ｂ 貫通孔
５ カートリッジ
７ 環状締結治具
７ｃ キー突起
７ｄ ハンドル部
５１ｂ 治具取付部
５１ｈ キー溝
５１ｉ ガイド溝部
５１ｊ ロック溝部
５３ ニップル
５５ ダイス DESCRIPTION OF SYMBOLS 1 Crosshead for extruder 3 Crosshead main body 3a Fitting recessed part 3b Through-hole 5 Cartridge 7 Annular fastening jig 7c Key protrusion 7d Handle part 51b Jig attachment part 51h Key groove 51i Guide groove part 51j Lock groove part 53 Nipple 55 Dies

Claims (2)

治具取付部が突設されたカートリッジと、前記カートリッジが嵌合される嵌合凹部が設けられて前記嵌合凹部の底部に前記カートリッジの前記治具取付部が貫通される貫通孔が設けられたクロスヘッド本体と、前記クロスヘッド本体の前記嵌合凹部に前記カートリッジが嵌合されて前記カートリッジの前記治具取付部が前記クロスヘッド本体の前記貫通孔から突出された状態で、該治具取付部に環装されて前記カートリッジを前記クロスヘッド本体に締結させる環状締結治具とを備えた押出機用クロスヘッドであって、
前記環状締結治具の内周面上にキー突起が凸設されると共に、前記カートリッジの前記治具取付部の外周面上に、前記環状締結治具が前記治具取付部に嵌め込まれた際に前記環状締結治具の前記キー突起が導入されるガイド溝部と、前記ガイド溝部から前記治具取付部の略周方向に延設されてなり、前記環状締結治具が前記治具取付部に嵌め込まれた状態で前記治具取付部を中心に回転された際に、前記環状締結治具が前記クロスヘッド本体側に締め寄せられる様に、前記環状締結治具の前記キー突起を誘導するロック溝部とからなるキー溝が凹設されることを特徴とする押出機用クロスヘッド。 A cartridge provided with a jig mounting portion and a fitting recess into which the cartridge is fitted are provided, and a through hole through which the jig mounting portion of the cartridge passes is provided at the bottom of the fitting recess. The crosshead main body, and the jig fitted into the fitting recess of the crosshead main body, and the jig mounting portion of the cartridge protrudes from the through hole of the crosshead main body. An extruder crosshead provided with an annular fastening jig that is mounted on an attachment portion and fastens the cartridge to the crosshead body,
When a key projection is protruded on the inner peripheral surface of the annular fastening jig, and the annular fastening jig is fitted into the jig attaching portion on the outer peripheral surface of the jig attaching portion of the cartridge. A guide groove portion into which the key projection of the annular fastening jig is introduced, and extending from the guide groove portion in a substantially circumferential direction of the jig attachment portion. The annular fastening jig is attached to the jig attachment portion. A lock that guides the key protrusion of the annular fastening jig so that the annular fastening jig is tightened to the crosshead body side when rotated around the jig mounting portion in a fitted state. A crosshead for an extruder, wherein a keyway comprising a groove is recessed. 前記環状締結治具には、その外周方向に突出する様にハンドル部が設けられることを特徴とする請求項１に記載の押出機用クロスヘッド。   The crosshead for an extruder according to claim 1, wherein the annular fastening jig is provided with a handle portion so as to protrude in an outer peripheral direction.
JP2004075706A 2004-03-17 2004-03-17 Crosshead for extruder Pending JP2005262527A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7910650B2 (en) 2004-08-31 2011-03-22 Hyperion Catalysis International, Inc. Conductive thermosets by extrusion
JP7470882B1 (en) 2024-01-26 2024-04-18 東京インキ株式会社 Die Set and Extruder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7910650B2 (en) 2004-08-31 2011-03-22 Hyperion Catalysis International, Inc. Conductive thermosets by extrusion
JP7470882B1 (en) 2024-01-26 2024-04-18 東京インキ株式会社 Die Set and Extruder

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