JP7072816B1 - Machining waste cutting equipment - Google Patents

Machining waste cutting equipment Download PDF

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JP7072816B1
JP7072816B1 JP2020204306A JP2020204306A JP7072816B1 JP 7072816 B1 JP7072816 B1 JP 7072816B1 JP 2020204306 A JP2020204306 A JP 2020204306A JP 2020204306 A JP2020204306 A JP 2020204306A JP 7072816 B1 JP7072816 B1 JP 7072816B1
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rotary shaft
suction port
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英喜 菊池
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有限会社キックス
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract

【課題】ろ過装置等を備えることなく、工作液を圧送ポンプにより正常に工作機械に供給することが可能な加工屑切断装置を提供する。【解決手段】加工屑切断装置１は、圧送ポンプ２の工作液の吸込口８から外部に延び、圧送ポンプ２に設けられた電動モータ５の回転軸６の回転に伴って回転する回転シャフト１２と、該回転シャフト１２に連結される第１切断刃１３と、を備え、第１切断刃１３は、回転シャフト１２が回転自在に挿通される共に圧送ポンプ２に固定され、複数の小孔４６を有する第１固定刃４４と、該第１固定刃４４よりも吸込口８側とは反対側に配置され、回転シャフト１２に相対回転不能に連結される第１回転刃４５と、を備えている。これにより、ろ過装置等を備えることなく、工作液を圧送ポンプ２により正常に工作機械に供給することができる。【選択図】図１PROBLEM TO BE SOLVED: To provide a machine tool cutting device capable of normally supplying a machine tool to a machine tool by a pressure pump without providing a filtration device or the like. SOLUTION: A machine waste cutting device 1 extends from a suction port 8 of a working liquid of a pressure feed pump 2 to the outside, and rotates with the rotation of a rotary shaft 6 of an electric motor 5 provided in the pressure feed pump 2. A first cutting blade 13 connected to the rotary shaft 12 is provided, and the first cutting blade 13 is rotatably inserted through the rotary shaft 12 and is fixed to the pump 2 and has a plurality of small holes 46. A first fixed blade 44 having a There is. As a result, the work liquid can be normally supplied to the machine tool by the pressure feed pump 2 without providing a filtration device or the like. [Selection diagram] Fig. 1

Description

本発明は、自動車の部品製造工場等に設置される工作機械へ工作液を供給する圧送ポンプに一体的に備えられ、該圧送ポンプの吸込口に吸い込まれる工作液に含まれる加工屑を細かく切断するための加工屑切断装置に関するものである。 The present invention is integrally provided in a pressure feed pump that supplies a machining fluid to a machine tool installed in an automobile parts manufacturing factory or the like, and finely cuts work chips contained in the machining fluid sucked into the suction port of the pressure feed pump. It relates to a machine tool cutting device for cutting.

一般に、自動車の部品製造工場等には、例えば、切削盤、研削盤やマシニングセンタなどの工作機械が多数設置され、当該工作機械には、切削油、研削油や主軸潤滑油等の工作液が使用される。この工作液は、圧送ポンプにより工作機械に供給され循環しているが、工作機械から戻ってきた加工屑を含む汚濁した工作液（懸濁液）を、再び圧送ポンプにより工作機械に供給すると、工作液に含まれる加工屑が、圧送ポンプの吸込口やポンプ本体の内部に詰まり、圧送ポンプにより正常に工作液を圧送できないなどの不都合が生じる。 In general, a large number of machine tools such as cutting machines, grinding machines and machining centers are installed in automobile parts manufacturing factories, and working fluids such as cutting oil, grinding oil and spindle lubricating oil are used in the machine tools. Will be done. This working fluid is supplied to the machine tool by a pressure pump and circulates. The machining debris contained in the working fluid clogs the suction port of the pump and the inside of the pump body, causing inconveniences such as the pump not being able to pump the working fluid normally.

これに対処するするために、一般的には、ろ過装置等を使用して、工作機械から戻ってきた、加工屑を含む工作液から加工屑を取り除いたうえで、再び圧送ポンプにより工作機械に供給するようにしている。例えば、当該ろ過装置として、サイクロンろ過器（特許文献１参照）が採用される。 In order to deal with this, generally, a filtration device or the like is used to remove the machine tool from the work liquid containing the machine tool returned from the machine tool, and then the machine tool is again pumped. I try to supply it. For example, a cyclone filter (see Patent Document 1) is adopted as the filtration device.

特許第６３８５５３９号公報Japanese Patent No. 6385539

上述したように、工作機械から戻ってきた、加工屑を含む汚濁した工作液を、再び圧送ポンプにより工作機械に供給すると、工作液に含まれる加工屑が、圧送ポンプの吸込口やポンプ本体の内部に詰まり、圧送ポンプにより正常に工作液を圧送できないなどの不都合が生じることがある。そこで、工作液に含まれる加工屑を取り除くろ過装置等を備えることは可能であるが、ろ過装置を備えることで、ろ過装置を設置するための設置場所の問題や、設備費が高騰する可能性があり、しかも、ろ過装置のメンテナンスをも必要であり、多くの問題が発生する。 As described above, when the polluted machining fluid containing the machining debris returned from the machine tool is supplied to the machine tool again by the pumping pump, the machining debris contained in the machining fluid is transferred to the suction port of the pumping pump and the pump body. Inconveniences such as clogging inside and the work fluid cannot be pumped normally by the pressure pump may occur. Therefore, it is possible to equip a filtration device or the like for removing the processing waste contained in the working liquid, but by equipping the filtration device, there is a possibility that the installation location problem for installing the filtration device and the equipment cost will rise. Moreover, maintenance of the filtration device is also required, which causes many problems.

本発明は、かかる点に鑑みてなされたものであり、ろ過装置等を備えることなく、工作液を圧送ポンプにより正常に工作機械に供給することが可能な加工屑切断装置を提供することを目的とする。 The present invention has been made in view of this point, and an object of the present invention is to provide a machine tool cutting device capable of normally supplying a machine tool to a machine tool by a pressure pump without providing a filtration device or the like. And.

上記課題を解決するための手段として、請求項１の加工屑切断装置に係る発明は、工作液を圧送する圧送ポンプに一体的に備えられ、該圧送ポンプの吸込口に吸い込まれる工作液に含まれる加工屑を切断するための加工屑切断装置であって、前記圧送ポンプの工作液の吸込口から外部に延び、前記圧送ポンプに設けられたモータの回転軸の回転に伴って回転する回転シャフトと、該回転シャフトに連結される第１切断刃と、を備え、該第１切断刃は、前記回転シャフトが回転自在に挿通される共に前記圧送ポンプに固定され、複数の工作液通過孔を有する第１固定刃と、該第１固定刃よりも前記吸込口側とは反対側に配置され、前記回転シャフトに相対回転不能に連結される第１回転刃と、を備え、前記第１切断刃よりも前記吸込口とは反対側に連設され、前記回転シャフトに連結される第２切断刃を備え、該第２切断刃は、前記回転シャフトが回転自在に挿通されると共に前記圧送ポンプに固定され、複数の工作液通過孔を有する第２固定刃と、該第２固定刃よりも前記吸込口側とは反対側に配置され、前記回転シャフトに相対回転不能に連結される第２回転刃と、を備え、前記第１固定刃の工作液通過孔の大きさは、前記第２固定刃の工作液通過孔の大きさより小さく、前記第２切断刃よりも前記吸込口とは反対側に連設され、前記回転シャフトに連結される第３切断刃を備え、該第３切断刃は、前記回転シャフトが回転自在に挿通される共に前記圧送ポンプに固定され、複数の工作液通過孔を有する第３固定刃と、該第３固定刃よりも前記吸込口とは反対側に配置され、前記回転シャフトに相対回転不能に連結される第３回転刃と、を備え、第３回転刃は、前記吸込口とは反対側に向かって突設される刃部を有する断面コ字状に形成されることを特徴とするものである。 As a means for solving the above problems, the invention according to the machined waste cutting device according to claim 1 is integrally provided in a pressure feed pump that pumps the work liquid, and is included in the work liquid sucked into the suction port of the pressure feed pump. A rotary shaft that extends outward from the suction port of the working liquid of the pump and rotates with the rotation of the rotary shaft of the motor provided in the pump. The first cutting blade is provided with a first cutting blade connected to the rotary shaft, and the rotary shaft is rotatably inserted and fixed to the pressure feed pump to provide a plurality of working fluid passage holes. It is provided with a first fixed blade having a first fixed blade, and a first rotary blade arranged on the side opposite to the suction port side of the first fixed blade and connected to the rotary shaft so as to be relatively non-rotatable, and the first cutting. It is provided with a second cutting blade that is connected to the rotary shaft on the side opposite to the suction port and is connected to the rotary shaft. The second cutting blade is such that the rotary shaft is rotatably inserted and the pump. A second fixed blade that is fixed to and has a plurality of working fluid passage holes, and a second fixed blade that is arranged on the side opposite to the suction port side of the second fixed blade and is connected to the rotary shaft so as to be relatively non-rotatable. A rotary blade is provided, and the size of the working fluid passing hole of the first fixed blade is smaller than the size of the working liquid passing hole of the second fixed blade, and is opposite to the suction port of the second cutting blade. It is provided with a third cutting blade that is connected to the rotary shaft and is connected to the rotary shaft. A third fixed blade having a hole and a third rotating blade arranged on the side opposite to the suction port from the third fixed blade and connected to the rotating shaft so as to be relatively non-rotatable are provided, and the third rotation is provided. The blade is characterized in that it is formed in a U-shaped cross section having a blade portion projecting toward the side opposite to the suction port .

請求項１の発明では、圧送ポンプが作動すると、モータの回転軸の回転により、圧送ポンプの吸込口から工作液が吸い込まれると同時に、第１切断刃の第１回転刃が回転する。そして、工作液に含まれる、第１固定刃に設けた各工作液通過孔よりも大きい加工屑は、第１固定刃に設けた各工作液通過孔を通過できず、その各工作液通過孔に留まった状態となり、各工作液通過孔に留まっている加工屑は第１切断刃の第１回転刃により細かく切断される。そして、この細かく切断された加工屑は、第１固定刃の各工作液通過孔を通過して、圧送ポンプを介して工作液と共に外部に圧送される。
なお、第１固定刃に設けた工作液通過孔の大きさは、この工作液通過孔を通過できる加工屑が圧送ポンプの吸込口やポンプ本体の内部に詰まりを生じさせない程度の大きさに設定される。 According to the first aspect of the present invention, when the pressure feed pump is operated, the working liquid is sucked from the suction port of the pressure feed pump by the rotation of the rotary shaft of the motor, and at the same time, the first rotary blade of the first cutting blade is rotated. Then, the machining debris contained in the working fluid, which is larger than the working fluid passing holes provided in the first fixed blade, cannot pass through the working fluid passing holes provided in the first fixed blade, and the working fluid passing holes thereof. The work chips remaining in each working liquid passage hole are finely cut by the first rotary blade of the first cutting blade. Then, the finely cut work chips pass through each working liquid passage hole of the first fixed blade and are pressure-fed to the outside together with the working liquid via a pressure pump.
The size of the working fluid passage hole provided in the first fixed blade is set so that the machining debris that can pass through the working fluid passage hole does not clog the suction port of the pump and the inside of the pump body. Will be done.

また、請求項１の発明では、圧送ポンプが作動すると、モータの回転軸の回転により、圧送ポンプの吸込口から工作液が吸い込まれると同時に、第１及び第２切断刃の第１及び第２回転刃が回転する。そして、工作液に含まれる、第２固定刃の工作液通過孔よりも大きい比較的大きな加工屑は、第２固定刃の各工作通過孔に留まった状態となり、その加工屑は第２切断刃の第２回転刃により大まかに切断される。続いて、第２固定刃の各工作液通過孔を通過できたものの第１固定刃の各工作液通過孔よりも大きい加工屑は、第１固定刃の各工作通過孔に留まった状態となり、その加工屑は第１切断刃の第１回転刃により細かく切断される。その後、この細かく切断された加工屑は、第１固定刃の各工作液通過孔を通過して、圧送ポンプを介して外部に工作液と共に圧送される。要するに、請求項２の発明では、第１切断刃に加えて第２切断刃を備えているので、工作液に含まれる比較的大きな加工屑を、まず、第２切断刃により粗切断して、その後、第１切断刃により細かく切断することができる。 Further , in the invention of claim 1, when the pressure feed pump is operated, the working fluid is sucked from the suction port of the pressure feed pump by the rotation of the rotary shaft of the motor, and at the same time, the first and second cutting blades of the first and second cutting blades are sucked. The rotary blade rotates. Then, relatively large work chips contained in the work liquid, which are larger than the work liquid passage holes of the second fixed blade, remain in each work passage hole of the second fixed blade, and the work chips are the second cutting blade. It is roughly cut by the second rotary blade of. Subsequently, the machining debris that could pass through each machining fluid passage hole of the second fixed blade but was larger than each machining fluid passage hole of the first fixed blade remained in each machining passage hole of the first fixed blade. The work chips are finely cut by the first rotary blade of the first cutting blade. After that, the finely cut work chips pass through each working liquid passage hole of the first fixed blade and are pressure-fed to the outside together with the working liquid via a pressure pump. In short, in the invention of claim 2, since the second cutting blade is provided in addition to the first cutting blade, relatively large work chips contained in the working liquid are first roughly cut by the second cutting blade. After that, it can be finely cut by the first cutting blade.

さらに、請求項１の発明では、圧送ポンプが作動すると、モータの回転軸の回転により、圧送ポンプの吸込口から工作液が吸い込まれると同時に、第１～第３切断刃の第１～第３回転刃が回転する。なお、工作液に含まれる加工屑には、多数の細長い加工屑が互いに絡み合って綿状態となっているものがある。そして、特に、第３切断刃の第３回転刃が回転することで、第３回転刃の刃部により綿状の加工屑をばらばらに解すことができる。その後、第３切断刃の第３回転刃により解された加工屑は、第３固定刃の各工作液通過孔を通過した後、第２切断刃により粗切断され、その後、第１切断刃により細かく切断される。
なお、第３切断刃の第３固定刃に設けた工作液通過孔の大きさは、第２切断刃の第２固定刃に設けた工作液通過孔の大きさよりも大きい、あるいは略同じである。 Further, in the invention of claim 1, when the pressure feed pump is operated, the working fluid is sucked from the suction port of the pressure feed pump by the rotation of the rotary shaft of the motor, and at the same time, the first to third cutting blades of the first to third cutting blades are sucked. The rotary blade rotates. In addition, some of the work chips contained in the working liquid are in a cotton state in which a large number of elongated work chips are entangled with each other. Then, in particular, by rotating the third rotary blade of the third cutting blade, the cotton-like work chips can be separated by the blade portion of the third rotary blade. After that, the machining debris melted by the third rotary blade of the third cutting blade passes through each working liquid passage hole of the third fixed blade, is roughly cut by the second cutting blade, and then is roughly cut by the first cutting blade. It is cut into small pieces.
The size of the working fluid passage hole provided in the third fixed blade of the third cutting blade is larger than or substantially the same as the size of the working fluid passing hole provided in the second fixed blade of the second cutting blade. ..

本発明に係る加工屑切断装置により、工作液に含まれる加工屑を、圧送ポンプの吸込口から吸い込む手前にて、圧送ポンプの吸込口及びポンプ本体内に詰まりが生じない程度にまで細かく切断することができる。その結果、ろ過装置等を備えることなく、工作液を圧送ポンプにより正常に工作機械に供給することができる。 The machined waste cutting device according to the present invention finely cuts the machined waste contained in the working liquid to the extent that the suction port of the pressure feed pump and the inside of the pump body are not clogged before being sucked from the suction port of the pressure feed pump. be able to. As a result, the work liquid can be normally supplied to the machine tool by the pressure pump without providing a filtration device or the like.

図１は、本発明の実施形態に係る、圧送ポンプに一体的に備えられる加工屑切断装置の分解図である。FIG. 1 is an exploded view of a machining waste cutting device integrally provided in a pressure feed pump according to an embodiment of the present invention. 図２は、本発明の実施形態に係る加工屑切断装置に採用された、整流板にブラケットを一体化した平面図である。FIG. 2 is a plan view in which a bracket is integrated with a straightening vane, which is adopted in the machining waste cutting device according to the embodiment of the present invention. 図３は、本発明の実施形態に係る加工屑切断装置に採用されたブラケットの平面図である。FIG. 3 is a plan view of a bracket adopted in the machining waste cutting device according to the embodiment of the present invention. 図４は、本発明の実施形態に係る加工屑切断装置に採用された整流板の平面図である。FIG. 4 is a plan view of a straightening vane adopted in the machining waste cutting device according to the embodiment of the present invention. 図５は、本発明の実施形態に係る加工屑切断装置に採用された第１切断刃の第１固定刃の平面図である。FIG. 5 is a plan view of the first fixed blade of the first cutting blade adopted in the machining waste cutting device according to the embodiment of the present invention. 図６の（ａ）は、本発明の実施形態に係る加工屑切断装置に採用された第１切断刃の第１回転刃の平面図であり、（ｂ）は、他の実施形態に係る第１回転刃の平面図であり、（ｃ）は、さらに他の実施形態に係る第１回転刃の断面図である。FIG. 6A is a plan view of the first rotary blade of the first cutting blade adopted in the machined waste cutting apparatus according to the embodiment of the present invention, and FIG. 6B is a plan view of the first rotary blade according to another embodiment. It is a plan view of one rotary blade, and (c) is a cross-sectional view of the 1st rotary blade which concerns on still another Embodiment. 図７は、本発明の実施形態に係る加工屑切断装置に採用された第２切断刃の第２固定刃の平面図である。FIG. 7 is a plan view of the second fixed blade of the second cutting blade adopted in the machining waste cutting device according to the embodiment of the present invention. 図８は、本発明の実施形態に係る加工屑切断装置に採用された第２切断刃の第２回転刃の平面図である。FIG. 8 is a plan view of the second rotary blade of the second cutting blade adopted in the machining waste cutting device according to the embodiment of the present invention. 図９は、本発明の実施形態に係る加工屑切断装置に採用された第３切断刃の第３固定刃の平面図である。FIG. 9 is a plan view of the third fixed blade of the third cutting blade adopted in the machining waste cutting device according to the embodiment of the present invention. 図１０は、本発明の実施形態に係る加工屑切断装置に採用された第３切断刃の第３回転刃の断面図である。FIG. 10 is a cross-sectional view of the third rotary blade of the third cutting blade adopted in the machining waste cutting device according to the embodiment of the present invention.

以下、本発明を実施するための形態を図１～図１０に基づいて詳細に説明する。
本発明の実施形態に係る加工屑切断装置１は、図１に示すように、工作液を工作機械に圧送（供給）する圧送ポンプ２に一体的に備えられるものである。本実施形態に係る加工屑切断装置１は、圧送ポンプ２により工作液を圧送する際、該工作液に含まれる加工屑を、圧送ポンプ２の吸込口８から吸い込む手前にて、圧送ポンプ２の吸込口８及びポンプ本体７内に詰まりが生じない程度にまで細かく切断するものである。なお、図１に示すように、圧送ポンプ２は、電動モータ５と、該電動モータ５から延びる回転軸６と、該回転軸６に一体的に連結されるインペラ（図示略）を含むポンプ本体７と、工作液の吸込口８と、工作液の吐出口９と、を備えている。そして、圧送ポンプ２は、電動モータ５の回転軸６の回転駆動に伴ってインペラが回転することで、工作液を吸込口８から吸い込み、ポンプ本体７内を経由して、吐出口９から吐出されるように構成される。 Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to FIGS. 1 to 10.
As shown in FIG. 1, the machine tool cutting apparatus 1 according to the embodiment of the present invention is integrally provided with a pressure feeding pump 2 for pressure feeding (supplying) working liquid to a machine tool. When the machining fluid is pumped by the pressure feed pump 2, the machining waste cutting device 1 according to the present embodiment is a pump 2 before sucking the machining fluid contained in the machining fluid from the suction port 8 of the pump 2. It is cut into small pieces to the extent that the suction port 8 and the pump main body 7 are not clogged. As shown in FIG. 1, the pressure feed pump 2 is a pump main body including an electric motor 5, a rotary shaft 6 extending from the electric motor 5, and an impeller (not shown) integrally connected to the rotary shaft 6. A work liquid suction port 8 and a work liquid discharge port 9 are provided. Then, the pressure feed pump 2 sucks the work liquid from the suction port 8 by rotating the impeller with the rotational drive of the rotary shaft 6 of the electric motor 5, and discharges the work liquid from the discharge port 9 via the inside of the pump body 7. Is configured to be.

本実施形態に係る加工屑切断装置１は、詳しく説明すると、図１に示すように、圧送ポンプ２に設けられた電動モータ５の回転軸６に相対回転不能に連結され、圧送ポンプ２の吸込口８から外部に延びる回転シャフト１２と、該回転シャフト１２に連結される第１切断刃１３と、該第１切断刃１３よりも他端側、すなわち圧送ポンプ２の吸込口８とは反対側に連設され、回転シャフト１２に連結される第２切断刃１４と、該第２切断刃１４よりも他端側、すなわち圧送ポンプ２の吸込口８とは反対側に連設され、回転シャフト１２に連結される第３切断刃１５と、を備えている。回転シャフト１２は、その一端部が、圧送ポンプ２に設けられた電動モータ５の回転軸６の先端部に相対回転不能に連結されて、回転軸６の回転に伴って回転する。回転シャフト１２は、その先端部（他端部）が圧送ポンプ２の吸込口８から外部に延びる。回転シャフト１２は、電動モータ５の回転軸６に着脱自在に連結される。なお、本実施形態では、回転シャフト１２が回転軸６と別体で構成されているが、圧送ポンプ２の電動モータ５の回転軸６をその吸込口８から外部に延びるように構成してもよい。 The machined waste cutting device 1 according to the present embodiment will be described in detail. As shown in FIG. 1, the machined waste cutting device 1 is connected to the rotating shaft 6 of the electric motor 5 provided in the pressure feeding pump 2 so as to be relatively non-rotatable, and sucks the pumping pump 2. The rotary shaft 12 extending outward from the port 8, the first cutting blade 13 connected to the rotary shaft 12, and the other end side of the first cutting blade 13, that is, the side opposite to the suction port 8 of the pump 2. The second cutting blade 14 connected to the rotary shaft 12 and the other end side of the second cutting blade 14, that is, the side opposite to the suction port 8 of the pump 2 is connected to the rotary shaft. It is provided with a third cutting blade 15 connected to 12. One end of the rotary shaft 12 is connected to the tip of the rotary shaft 6 of the electric motor 5 provided in the pressure feed pump 2 so as not to rotate relative to each other, and rotates with the rotation of the rotary shaft 6. The tip (the other end) of the rotary shaft 12 extends outward from the suction port 8 of the pressure feed pump 2. The rotary shaft 12 is detachably connected to the rotary shaft 6 of the electric motor 5. In the present embodiment, the rotary shaft 12 is formed separately from the rotary shaft 6, but the rotary shaft 6 of the electric motor 5 of the pressure feed pump 2 may be configured to extend outward from the suction port 8. good.

図１に示すように、圧送ポンプ２の吸込口８側には、ブラケット１８を介して整流板２５が固定れている。ブラケット１８は、薄厚の円板状に形成されている。図３も参照して、ブラケット１８の外周部には、整流板２５と一体化するための整流板用取付孔１９が周方向に間隔を置いて複数形成される（本実施形態では４箇所）。ブラケット１８には、径方向中央に開口部２０が形成される。開口部２０は、回転シャフト１２が挿通されると共に工作液の流通孔として機能するものである。 As shown in FIG. 1, a straightening vane 25 is fixed to the suction port 8 side of the pressure feed pump 2 via a bracket 18. The bracket 18 is formed in the shape of a thin disk. With reference to FIG. 3, a plurality of straightening vane mounting holes 19 for integrating with the straightening vane 25 are formed on the outer peripheral portion of the bracket 18 at intervals in the circumferential direction (four locations in the present embodiment). .. The bracket 18 is formed with an opening 20 in the center in the radial direction. The opening 20 is a hole through which the rotary shaft 12 is inserted and also functions as a flow hole for the working liquid.

なお、当該開口部２０の内径は、圧送ポンプ２の吸込口８の内径より小径となる。ブラケット１８の開口部２０の周りには、圧送ポンプ２とのポンプ用取付孔２１が周方向に間隔を置いて複数形成される（本実施形態では４箇所）。図１、図２及び図４に示すように、整流板２５は、全体として、ブラケット１８よりも厚いに円板状に形成される。整流板２５は、外円筒状部２７と、外円筒状部２７の内側で径方向中央に外円筒状部２７と同心状に配置される内円筒状部２８と、該内円筒状部２８と外円筒状部２７とを接続する複数の区画壁部２９と、から構成される。外円筒状部２７の外径とブラケット１８の外径とは一致する。 The inner diameter of the opening 20 is smaller than the inner diameter of the suction port 8 of the pressure feed pump 2. A plurality of pump mounting holes 21 for the pressure feed pump 2 are formed around the opening 20 of the bracket 18 at intervals in the circumferential direction (four locations in the present embodiment). As shown in FIGS. 1, 2 and 4, the straightening vane 25 is formed in a disk shape to be thicker than the bracket 18 as a whole. The straightening vane 25 includes an outer cylindrical portion 27, an inner cylindrical portion 28 arranged concentrically with the outer cylindrical portion 27 in the radial center inside the outer cylindrical portion 27, and the inner cylindrical portion 28. It is composed of a plurality of partition wall portions 29 connecting the outer cylindrical portion 27. The outer diameter of the outer cylindrical portion 27 and the outer diameter of the bracket 18 match.

外円筒状部２７には、ブラケット１８と一体化するためのブラケット用取付孔３３が周方向に沿って間隔を置いて複数形成される（本実施形態では４箇所）。ブラケット用取付孔３３は軸方向に延びる。また、外円筒状部２７には、第１、第２、第３切断刃１３、１４、１５の第１、第２、第３固定刃４４、６２、７３を取り付けるための固定刃用取付孔３４が周方向に沿って間隔を置いて複数形成される（本実施形態では４箇所）。固定刃用取付孔３４も軸方向に延びる。 A plurality of bracket mounting holes 33 for being integrated with the bracket 18 are formed in the outer cylindrical portion 27 at intervals along the circumferential direction (four locations in the present embodiment). The bracket mounting hole 33 extends in the axial direction. Further, the outer cylindrical portion 27 has mounting holes for fixed blades for mounting the first, second, and third fixed blades 44, 62, 73 of the first, second, and third cutting blades 13, 14, and 15. A plurality of 34s are formed at intervals along the circumferential direction (4 locations in the present embodiment). The fixing blade mounting hole 34 also extends in the axial direction.

内円筒状部２８内の支持孔３７が、回転シャフト１２を、軸受３８を介して回転自在に支持する。図１を参照して、内円筒状部２８の吸込口８側の軸方向一端面が、外円筒状部２７の吸込口８側の軸方向一端面より低く形成される。一方、内円筒状部２８の軸方向他端面は、外円筒状部２７の軸方向他端面と同一平面上に位置する。図４を参照して、内円筒状部２８と外円筒状部２７との間の環状空間部４０は、互いに直交するように延びる区画壁部２９、２９にて４箇所に区画される。これら区画された４箇所の空間部がそれぞれ工作液通過孔４１、４１として機能する。 The support hole 37 in the inner cylindrical portion 28 rotatably supports the rotary shaft 12 via the bearing 38. With reference to FIG. 1, the axial end surface of the inner cylindrical portion 28 on the suction port 8 side is formed lower than the axial end surface of the outer cylindrical portion 27 on the suction port 8 side. On the other hand, the other end surface in the axial direction of the inner cylindrical portion 28 is located on the same plane as the other end surface in the axial direction of the outer cylindrical portion 27. With reference to FIG. 4, the annular space portion 40 between the inner cylindrical portion 28 and the outer cylindrical portion 27 is partitioned into four locations by partition wall portions 29, 29 extending so as to be orthogonal to each other. These four partitioned spaces function as working liquid passage holes 41 and 41, respectively.

図１を参照して、区画壁部２９の一端面、すなわち吸込口８に近接する側の面は、外円筒状部２７から内円筒状部２８に向かって下方傾斜している。一方、区画壁部２９の他端面、すなわち吸込口８から離間する側の面は、内円筒状部２８及び外円筒状部２７の軸方向他端面と同一平面上に位置する。図４を参照して、工作液通過孔４１は、扇形状に類似した形状に形成される。なお、本実施形態では、整流板２５には、工作液通過孔４１が４箇所形成されているが、この限りではなく、２箇所または３箇所でもよく、５箇所以上でもよい。 With reference to FIG. 1, one end surface of the partition wall portion 29, that is, a surface on the side close to the suction port 8, is inclined downward from the outer cylindrical portion 27 toward the inner cylindrical portion 28. On the other hand, the other end surface of the partition wall portion 29, that is, the surface on the side separated from the suction port 8, is located on the same plane as the other end surface in the axial direction of the inner cylindrical portion 28 and the outer cylindrical portion 27. With reference to FIG. 4, the working fluid passage hole 41 is formed in a shape similar to a fan shape. In the present embodiment, the straightening vane 25 is formed with four work liquid passage holes 41, but the present invention is not limited to this, and the straightening plate 25 may be formed at two or three places, or at five or more places.

そして、図１及び図２を参照して、ブラケット１８と整流板２５とを一体化する際には、整流板２５の外円筒状部２７の一端面にブラケット１８を当接させた後、ブラケット１８の整流板用取付孔１９と、整流板２５のブラケット用取付孔３３とを一致させた後、取付ボルトやピン（図示略）等をそれぞれに挿通することで両者を一体化する。このとき、ブラケット１８の開口部２０と、整流板２５の各工作液通過孔４１とが連通する。続いて、図１を参照して、圧送ポンプ２の吸込口８から外部に延びる回転シャフト１２を、ブラケット１８の開口部２０、及び整流板２５の支持孔３７に軸受３８を介して挿通すると共に、ブラケット１８を圧送ポンプ２の吸込口８を覆うように配置する。 Then, referring to FIGS. 1 and 2, when integrating the bracket 18 and the straightening vane 25, the bracket 18 is brought into contact with one end surface of the outer cylindrical portion 27 of the straightening vane 25, and then the bracket is attached. After matching the mounting hole 19 for the straightening vane 18 with the mounting hole 33 for the bracket of the straightening vane 25, the two are integrated by inserting mounting bolts, pins (not shown) or the like into each of them. At this time, the opening 20 of the bracket 18 and the working fluid passage holes 41 of the straightening vane 25 communicate with each other. Subsequently, with reference to FIG. 1, the rotary shaft 12 extending outward from the suction port 8 of the pressure feed pump 2 is inserted into the opening 20 of the bracket 18 and the support hole 37 of the straightening vane 25 via the bearing 38. , The bracket 18 is arranged so as to cover the suction port 8 of the pressure feed pump 2.

続いて、図１及び図２を参照して、圧送ポンプ２の吸込口８周辺の面に予め形成されてある複数の雌ねじ部（図示略）と、ブラケット１８に設けた各ポンプ用取付孔２１とをそれぞれ一致させる。続いて、各取付ボルト（図示略）を、ブラケット１８の各ポンプ用取付孔２１に挿通させると共に圧送ポンプ２の各雌ねじ部に螺合することで、圧送ポンプ２の吸込口８の他端面にブラケット１８を介して整流板２５を連結することができる。このとき、回転シャフト１２は、整流板２５の他端面から外部に突出された状態となる。また、ブラケット１８の開口部２０と、圧送ポンプ２の吸込口８とが連通する。 Subsequently, with reference to FIGS. 1 and 2, a plurality of female screw portions (not shown) formed in advance on the surface around the suction port 8 of the pump 2 and the mounting holes 21 for each pump provided in the bracket 18. And each match. Subsequently, each mounting bolt (not shown) is inserted into each pump mounting hole 21 of the bracket 18 and screwed into each female thread portion of the pressure feed pump 2, so that the other end surface of the suction port 8 of the pressure feed pump 2 is reached. The rectifying plate 25 can be connected via the bracket 18. At this time, the rotary shaft 12 is in a state of protruding outward from the other end surface of the straightening vane 25. Further, the opening 20 of the bracket 18 and the suction port 8 of the pressure feed pump 2 communicate with each other.

図１を参照して、整流板２５の他端側、すなわち圧送ポンプ２の吸込口８側とは反対側に第１切断刃１３が配置される。図５及び図６も参照して、第１切断刃１３は、回転シャフト１２が回転自在に挿通される共に圧送ポンプ２に固定され、多数の小孔４６を有する第１固定刃４４と、該第１固定刃４４よりも他端側、すなわち圧送ポンプ２の吸込口８側とは反対側に配置され、回転シャフト１２に相対回転不能に連結される第１回転刃４５と、を備えている。図１及び図５を参照して、第１固定刃４４は、薄厚の円板状に形成される。該第１固定刃４４の径方向中央には、回転シャフト１２を、軸受４９を介して回転自在に支持する支持孔４８が形成される。 With reference to FIG. 1, the first cutting blade 13 is arranged on the other end side of the straightening vane 25, that is, on the side opposite to the suction port 8 side of the pressure feed pump 2. With reference to FIGS. 5 and 6, the first cutting blade 13 includes a first fixed blade 44 having a large number of small holes 46, in which a rotary shaft 12 is rotatably inserted and fixed to a pressure pump 2. It is provided with a first rotary blade 45 that is arranged on the other end side of the first fixed blade 44, that is, on the side opposite to the suction port 8 side of the pressure feed pump 2 and is connected to the rotary shaft 12 so as to be relatively non-rotatable. .. With reference to FIGS. 1 and 5, the first fixed blade 44 is formed in the shape of a thin disk. A support hole 48 for rotatably supporting the rotary shaft 12 via a bearing 49 is formed in the radial center of the first fixed blade 44.

図５を参照して、第１固定刃４４の外周部には、整流板２５との整流板用取付孔５２が周方向に沿って間隔を置いて複数形成されている（本実施形態では４箇所）。各整流板用取付孔５２は軸方向に延びる。これら整流板用取付孔５２は、整流板２５に設けた各固定刃用取付孔３４に対応して形成される。第１固定刃４４の支持孔４８周辺には、小孔４６が互いに近接して多数形成されている。小孔４６が形成される全範囲は、上述した整流板２５の内円筒状部２８と外円筒状部２７との間の環状空間部４０内に位置する。各小孔４６の大きさは、これら小孔４６を通過できる加工屑が圧送ポンプ２の吸込口８やポンプ本体７の内部に詰まりを生じさせない程度の大きさに設定される。各小孔４６が工作液通過孔に相当する。 With reference to FIG. 5, a plurality of mounting holes 52 for the straightening vane with the straightening vane 25 are formed on the outer peripheral portion of the first fixed blade 44 at intervals along the circumferential direction (4 in the present embodiment). part). The mounting holes 52 for each straightening vane extend in the axial direction. These straightening vane mounting holes 52 are formed corresponding to the fixed blade mounting holes 34 provided in the straightening vane 25. A large number of small holes 46 are formed in close proximity to each other around the support hole 48 of the first fixed blade 44. The entire range in which the small holes 46 are formed is located in the annular space portion 40 between the inner cylindrical portion 28 and the outer cylindrical portion 27 of the straightening vane 25 described above. The size of each small hole 46 is set to such a size that the processing debris that can pass through the small hole 46 does not clog the inside of the suction port 8 of the pump 2 and the pump body 7. Each small hole 46 corresponds to a working fluid passage hole.

図１及び図６（ａ）を参照して、第１回転刃４５は、細長い板状であって、長手方向中央を境とした一対の回転刃部５４、５４を有する。各回転刃部５４は、回転方向に若干湾曲して延びる。各回転刃部５４は、回転方向一端縁に切断刃部５５を有している。各回転刃部５４（切断刃部５５）の回転軌跡の範囲は、上述した整流板２５の内円筒状部２８と外円筒状部２７との間の環状空間部４０内に位置する。第１回転刃４５の中央部（一対の回転刃部５４、５４間）に連結孔５７が形成される。該連結孔５７に回転シャフト１２が互いに相対回転不能に連結される。その結果、第１回転刃４５は、回転シャフト１２の回転に伴って回転する。回転シャフト１２と第１回転刃４５とを互いに相対回転不能に連結するために、回転シャフト１２の外周面と第１回転刃４５の連結孔５７の内周面との間にスプライン構造やキー溝構造等を採用してもよい。 With reference to FIGS. 1 and 6 (a), the first rotary blade 45 has an elongated plate shape and has a pair of rotary blade portions 54, 54 with a center in the longitudinal direction as a boundary. Each rotary blade portion 54 is slightly curved and extends in the rotational direction. Each rotary blade portion 54 has a cutting blade portion 55 at one end edge in the rotation direction. The range of the rotation locus of each rotary blade portion 54 (cutting blade portion 55) is located in the annular space portion 40 between the inner cylindrical portion 28 and the outer cylindrical portion 27 of the straightening vane 25 described above. A connecting hole 57 is formed in the central portion of the first rotary blade 45 (between the pair of rotary blade portions 54 and 54). The rotating shafts 12 are connected to the connecting hole 57 so as not to rotate relative to each other. As a result, the first rotary blade 45 rotates with the rotation of the rotary shaft 12. In order to connect the rotary shaft 12 and the first rotary blade 45 to each other so that they cannot rotate relative to each other, a spline structure or a key groove is formed between the outer peripheral surface of the rotary shaft 12 and the inner peripheral surface of the connecting hole 57 of the first rotary blade 45. A structure or the like may be adopted.

なお、第１回転刃４５の他の実施形態を図６（ｂ）に示す。他の実施形態に係る第１回転刃４５’は、整流板２５の外円筒状部２７の内径と外径が略一致する円板状に形成される。他の実施形態に係る第１回転刃４５’には、切断刃として作用する切断用小孔５８が互いに近接して多数形成されている。これら切断用小孔５８の内径は、第１固定刃４４に設けた小孔４６の内径よりも大きく設定される。他の実施形態に係る第１回転刃４５’の径方向中央に連結孔５７が形成される。該連結孔５７に回転シャフト１２が互いに相対回転不能に連結される。 In addition, another embodiment of the 1st rotary blade 45 is shown in FIG. 6 (b). The first rotary blade 45'according to the other embodiment is formed in a disk shape in which the inner diameter and the outer diameter of the outer cylindrical portion 27 of the straightening vane 25 substantially match. A large number of small cutting holes 58 acting as cutting blades are formed in the first rotary blade 45'according to the other embodiment in close proximity to each other. The inner diameter of these cutting small holes 58 is set to be larger than the inner diameter of the small holes 46 provided in the first fixed blade 44. A connecting hole 57 is formed in the radial center of the first rotary blade 45'according to another embodiment. The rotating shafts 12 are connected to the connecting hole 57 so as not to rotate relative to each other.

また、第１回転刃４５のさらに他の実施形態を図６（ｃ）に示す。さらに他の実施形態に係る第１回転刃４５’’は、図６（ａ）に示す第１回転刃４５の他端側、すなわち吸込口８とは反対側に回転刃部５９を一体的に備えて構成される。回転刃部５９は、平面視略円形状の底壁部６０と、底壁部６０の外周端から軸方向に突設される円筒状刃部６１と、からなる断面コ字状に形成される。円筒状刃部６１は他端側（吸込口８とは反対側）に突設される。底壁部６０の径方向中央に連結孔５７が形成される。該連結孔５７に回転シャフト１２が互いに相対回転不能に連結される。なお、図６（ａ）に示す第１回転刃４５の他端面から直接円筒状刃部６１を突設させてもよい。
この第１回転刃４５’’は、本実施形態に係る加工屑切断装置１が第１切断刃１３だけ（後で詳述する第２切断刃１４及び第３切断刃１５を備えていない）を備えている際に有効となる。すなわち、多数の細長い加工屑が互いに絡み合ってなる綿状の加工屑を、第１回転刃４５’’の回転刃部５９が回転することで、その円筒状刃部６１によりばらばらに解すことができる。 Further, still another embodiment of the first rotary blade 45 is shown in FIG. 6 (c). In the first rotary blade 45 ″ according to still another embodiment, the rotary blade portion 59 is integrally provided on the other end side of the first rotary blade 45 shown in FIG. 6A, that is, on the side opposite to the suction port 8. Be prepared for it. The rotary blade portion 59 is formed in a U-shaped cross section including a bottom wall portion 60 having a substantially circular shape in a plan view and a cylindrical blade portion 61 projecting from the outer peripheral end of the bottom wall portion 60 in the axial direction. .. The cylindrical blade portion 61 is projected on the other end side (the side opposite to the suction port 8). A connecting hole 57 is formed in the radial center of the bottom wall portion 60. The rotating shafts 12 are connected to the connecting hole 57 so as not to rotate relative to each other. The cylindrical blade portion 61 may be directly projected from the other end surface of the first rotary blade 45 shown in FIG. 6A.
In this first rotary blade 45'', the machining waste cutting device 1 according to the present embodiment has only the first cutting blade 13 (not provided with the second cutting blade 14 and the third cutting blade 15 which will be described in detail later). It becomes effective when preparing. That is, the cotton-like work chips formed by entwining a large number of elongated work chips with each other can be separated by the cylindrical blade portion 61 when the rotary blade portion 59 of the first rotary blade 45 ″ rotates. ..

図１、図７及び図８を参照して、第１切断刃１３の他端側、すなわち圧送ポンプ２の吸込口８側とは反対側に第２切断刃１４が配置される。第２切断刃１４は、回転シャフト１２が回転自在に挿通されると共に圧送ポンプ２に固定され、複数の大孔７０を有する第２固定刃６２と、該第２固定刃６２よりも他端側、すなわち圧送ポンプ２の吸込口８側とは反対側に配置され、回転シャフト１２に相対回転不能に連結される第２回転刃６３と、を備えている。図７を参照して、第２固定刃６２は、薄厚の円板状に形成される。該第２固定刃６２の径方向中央には、回転シャフト１２を、軸受６７を介して回転自在に支持する支持孔６６が形成される。第２固定刃６２の外周部には、整流板２５との整流板用取付孔６９が周方向に沿って間隔を置いて複数形成されている（本実施形態では４箇所）。各整流板用取付孔６９は軸方向に延びる。これら整流板用取付孔６９は、整流板２５に設けた各固定刃用取付孔３４に対応して形成される。 With reference to FIGS. 1, 7 and 8, the second cutting blade 14 is arranged on the other end side of the first cutting blade 13, that is, on the side opposite to the suction port 8 side of the pressure feed pump 2. In the second cutting blade 14, the rotary shaft 12 is rotatably inserted and fixed to the pressure pump 2, the second fixed blade 62 having a plurality of large holes 70 and the other end side of the second fixed blade 62. That is, a second rotary blade 63, which is arranged on the side opposite to the suction port 8 side of the pressure feed pump 2 and is connected to the rotary shaft 12 so as to be relatively non-rotatable, is provided. With reference to FIG. 7, the second fixed blade 62 is formed in the shape of a thin disk. A support hole 66 that rotatably supports the rotary shaft 12 via the bearing 67 is formed at the center of the second fixed blade 62 in the radial direction. A plurality of mounting holes 69 for the straightening vane with the straightening vane 25 are formed on the outer peripheral portion of the second fixed blade 62 at intervals along the circumferential direction (four locations in the present embodiment). The mounting holes 69 for each straightening vane extend in the axial direction. These straightening vane mounting holes 69 are formed corresponding to the fixed blade mounting holes 34 provided in the straightening vane 25.

第２固定刃６２の支持孔６６周辺には、大孔７０が周方向に間隔を置いて複数形成される（本実施形態では大孔７０は３箇所形成される）。大孔７０は、幅を持って周方向に沿って延び、その幅が途中から次第に小さくなる形状に形成されている。各大孔７０は、上述した、整流板２５の内円筒状部２８と外円筒状部２７との間の環状空間部４０内に位置する。第２固定刃６２（第２切断刃１４）の大孔７０の大きさは、第１固定刃４４（第１切断刃１３）の小孔４６の大きさよりもはるかに大きく設定される。大孔７０が工作液通過孔に相当する。図８を参照して、第２切断刃１４の第２回転刃６３は、第１切断刃１３に備えた第１回転刃４５（図６（ａ）参照）と同じ構造であるので、ここでの説明を省略する。 A plurality of large holes 70 are formed around the support hole 66 of the second fixed blade 62 at intervals in the circumferential direction (in the present embodiment, three large holes 70 are formed). The foramen magnum 70 has a width and extends along the circumferential direction, and is formed in a shape in which the width gradually decreases from the middle. Each foramen magnum 70 is located in the annular space 40 between the inner cylindrical portion 28 and the outer cylindrical portion 27 of the straightening vane 25 described above. The size of the large hole 70 of the second fixed blade 62 (second cutting blade 14) is set to be much larger than the size of the small hole 46 of the first fixed blade 44 (first cutting blade 13). The large hole 70 corresponds to the work liquid passage hole. With reference to FIG. 8, the second rotary blade 63 of the second cutting blade 14 has the same structure as the first rotary blade 45 (see FIG. 6A) provided in the first cutting blade 13. The explanation of is omitted.

図１、図９及び図１０を参照して、第２切断刃１４の他端側、すなわち圧送ポンプ２の吸込口８側とは反対側に第３切断刃１５が配置されている。該第３切断刃１５は、回転シャフト１２が回転自在に挿通される共に圧送ポンプ２に固定され、複数の大孔７０を有する第３固定刃７３と、該第３固定刃７３よりも他端側、すなわち圧送ポンプ２の吸込口８とは反対側に配置され、回転シャフト１２に相対回転不能に連結される第３回転刃７４と、を備えている。図９を参照して、第３切断刃１５の第３固定刃７３は、第２切断刃１４に備えた第２固定刃６２（図７参照）と同じ構造であるので、ここでの説明を省略する。なお、第３切断刃１５の第３固定刃７３の各大孔７０の大きさを、第２切断刃１４の第２固定刃６２の各大孔７０の大きさよりも大きく設定してもよい。 With reference to FIGS. 1, 9 and 10, the third cutting blade 15 is arranged on the other end side of the second cutting blade 14, that is, on the side opposite to the suction port 8 side of the pressure feed pump 2. The third cutting blade 15 has a third fixed blade 73 having a plurality of large holes 70, in which a rotary shaft 12 is rotatably inserted and fixed to the pressure pump 2, and the other end of the third fixed blade 73. It is provided with a third rotary blade 74, which is arranged on the side, that is, on the side opposite to the suction port 8 of the pressure feed pump 2, and is connected to the rotary shaft 12 so as to be relatively non-rotatable. With reference to FIG. 9, the third fixed blade 73 of the third cutting blade 15 has the same structure as the second fixed blade 62 (see FIG. 7) provided in the second cutting blade 14, and thus the description thereof will be described here. Omit. The size of each large hole 70 of the third fixed blade 73 of the third cutting blade 15 may be set larger than the size of each large hole 70 of the second fixed blade 62 of the second cutting blade 14.

図１及び図１０を参照して、第３回転刃７４は、平面視略円形状の底壁部７７と、底壁部７７の外周端から軸方向に突設される円筒状刃部７８と、からなる断面コ字状に形成される。底壁部７７の径方向中央に連結孔８０が形成される。該連結孔８０に回転シャフト１２が互いに相対回転不能に連結される。その結果、第３回転刃７４は、回転シャフト１２の回転に伴って回転する。回転シャフト１２と第３回転刃７４とを互いに相対回転不能に連結するために、回転シャフト１２の外周面と第３回転刃７４の連結孔８０の内周面との間にスプライン構造やキー溝構造等を採用してもよい。また、第３切断刃１５の第３回転刃７４が回転シャフト１２に連結されると、第３回転刃７４の円筒状刃部７８が、他端側、すなわち圧送ポンプ２の吸込口８側と反対側に向かって突設された状態となる。円筒状刃部７８の外周は、第３固定刃７３の各大孔７０が形成される範囲よりも径方向内側に位置する。 With reference to FIGS. 1 and 10, the third rotary blade 74 includes a bottom wall portion 77 having a substantially circular shape in a plan view and a cylindrical blade portion 78 projecting axially from the outer peripheral end of the bottom wall portion 77. , Is formed in a U-shaped cross section. A connecting hole 80 is formed in the radial center of the bottom wall portion 77. The rotating shafts 12 are connected to the connecting hole 80 so as not to rotate relative to each other. As a result, the third rotary blade 74 rotates with the rotation of the rotary shaft 12. In order to connect the rotary shaft 12 and the third rotary blade 74 to each other so that they cannot rotate relative to each other, a spline structure or a key groove is formed between the outer peripheral surface of the rotary shaft 12 and the inner peripheral surface of the connecting hole 80 of the third rotary blade 74. A structure or the like may be adopted. Further, when the third rotary blade 74 of the third cutting blade 15 is connected to the rotary shaft 12, the cylindrical blade portion 78 of the third rotary blade 74 becomes the other end side, that is, the suction port 8 side of the pressure feed pump 2. It will be in a state of being projected toward the opposite side. The outer periphery of the cylindrical blade portion 78 is located radially inside the range in which each large hole 70 of the third fixed blade 73 is formed.

そして、図１を参照して、上述したように、圧送ポンプ２の吸込口８から外部に延びる回転シャフト１２を、整流板２５と一体化されたブラケット１８の開口部２０、及び整流板２５の支持孔３７に軸受３８を介して挿通すると共に、ブラケット１８を圧送ポンプ２の吸込口８を覆うように配置する。続いて、各取付ボルトを、ブラケット１８のポンプ用取付孔２（図３参照）に挿通させると共に圧送ポンプ２の各雌ねじ部（図示略）に螺合することで、圧送ポンプ２の吸込口８側に整流板２５を、ブラケット１８を介して連結する。このとき、回転シャフト１２は、整流板２５の他端面から他端側に突出された状態となる。 Then, with reference to FIG. 1, as described above, the rotary shaft 12 extending outward from the suction port 8 of the pressure feed pump 2 is the opening 20 of the bracket 18 integrated with the straightening vane 25, and the straightening vane 25. The bracket 18 is inserted into the support hole 37 via the bearing 38, and the bracket 18 is arranged so as to cover the suction port 8 of the pressure feed pump 2. Subsequently, each mounting bolt is inserted into the pump mounting hole 2 (see FIG. 3) of the bracket 18 and screwed into each female thread portion (not shown) of the pressure feed pump 2, so that the suction port 8 of the pressure feed pump 2 is screwed. The rectifying plate 25 is connected to the side via the bracket 18. At this time, the rotary shaft 12 is in a state of protruding from the other end surface of the straightening vane 25 to the other end side.

続いて、整流板２５の他端側、すなわち圧送ポンプ２の吸込口８側とは反対側に第１切断刃１３の第１固定刃４４及び第１回転刃４５をこの順序で配置して、整流板２５の支持孔３７から他端側に突出された回転シャフト１２を、第１固定刃４４の支持孔４８に軸受４９を介して回転自在に挿通すると共に第１回転刃４５の連結孔５７に相対回転不能に連結する。続いて、第１切断刃１３の他端側、すなわち圧送ポンプ２の吸込口８側とは反対側に第２切断刃１４の第２固定刃６２及び第２回転刃６３をこの順序で配置して、第１切断刃１３の第１回転刃４５の連結孔５７から他端側に突出された回転シャフト１２を、第２固定刃６２の支持孔６６に軸受６７を介して回転自在に挿通すると共に第２回転刃６３の連結孔５７に相対回転不能に連結する。 Subsequently, the first fixed blade 44 and the first rotary blade 45 of the first cutting blade 13 are arranged in this order on the other end side of the rectifying plate 25, that is, on the side opposite to the suction port 8 side of the pressure feed pump 2. The rotary shaft 12 protruding from the support hole 37 of the straightening vane 25 to the other end side is rotatably inserted into the support hole 48 of the first fixed blade 44 via the bearing 49, and the connecting hole 57 of the first rotary blade 45 is inserted. It is connected to the relative non-rotatable. Subsequently, the second fixed blade 62 and the second rotary blade 63 of the second cutting blade 14 are arranged in this order on the other end side of the first cutting blade 13, that is, on the side opposite to the suction port 8 side of the pressure feed pump 2. The rotary shaft 12 projecting from the connecting hole 57 of the first rotary blade 45 of the first cutting blade 13 to the other end side is rotatably inserted into the support hole 66 of the second fixed blade 62 via the bearing 67. At the same time, it is connected to the connecting hole 57 of the second rotary blade 63 so as to be relatively non-rotatable.

続いて、第２切断刃１４の他端側、すなわち圧送ポンプ２の吸込口８側とは反対側に第３切断刃１５の第３固定刃７３及び第３回転刃７４をこの順序で配置して、第２切断刃１４の第２回転刃６３の連結孔５７から他端側に突出された回転シャフト１２を、第３固定刃７３の支持孔６６に軸受６７を介して回転自在に挿通すると共に第３回転刃７４の連結孔８０に相対回転不能に連結する。そして、第３切断刃１５の第３回転刃７４の連結孔８０から他端側に突出した回転シャフト１２の先端（他端部）に、ナット（図示略またはＣ字状抜止リング（図示略）等を装着して一体化する。 Subsequently, the third fixed blade 73 and the third rotary blade 74 of the third cutting blade 15 are arranged in this order on the other end side of the second cutting blade 14, that is, on the side opposite to the suction port 8 side of the pressure feed pump 2. The rotary shaft 12 projecting from the connecting hole 57 of the second rotary blade 63 of the second cutting blade 14 to the other end side is rotatably inserted into the support hole 66 of the third fixed blade 73 via the bearing 67. At the same time, it is connected to the connecting hole 80 of the third rotary blade 74 so as to be relatively non-rotatable. Then, a nut (not shown) or a C-shaped retaining ring (not shown) is attached to the tip (the other end) of the rotary shaft 12 protruding toward the other end from the connecting hole 80 of the third rotary blade 74 of the third cutting blade 15. Etc. are attached and integrated.

また、第１切断刃１３の第１固定刃４４に設けた各整流板用取付孔５２、第２切断刃１４の第２固定刃６２に設けた各整流板用取付孔６９、及び第３切断刃１５の第３固定刃７３に設けた各整流板用取付孔６９にそれぞれ取付ボルト（図示略）を挿通すると共に、各取付ボルトを整流板２５に向けた各固定刃用取付孔３４に螺合する。その結果、第１切断刃１３の第１固定刃４４、第２切断刃１４の第２固定刃６２、及び第３切断刃１５の第３固定刃７３が、各取付ボルトにより、整流板２５、ひいては整流板２５及びブラケット１８を介して圧送ポンプ２にそれぞれ固定される。 Further, the mounting holes 52 for each straightening vane provided in the first fixed blade 44 of the first cutting blade 13, the mounting holes 69 for each straightening vane provided in the second fixed blade 62 of the second cutting blade 14, and the third cutting. A mounting bolt (not shown) is inserted into each straightening blade mounting hole 69 provided in the third fixed blade 73 of the blade 15, and each mounting bolt is screwed into each fixed blade mounting hole 34 facing the straightening plate 25. It fits. As a result, the first fixed blade 44 of the first cutting blade 13, the second fixed blade 62 of the second cutting blade 14, and the third fixed blade 73 of the third cutting blade 15 are provided with the straightening vane 25 by each mounting bolt. As a result, it is fixed to the pressure feed pump 2 via the straightening vane 25 and the bracket 18.

次に、本実施形態に係る加工屑切断装置１の作用を説明する。
圧送ポンプ２により工作液を工作機械に圧送する際に、電動モータ５を駆動させると、その回転軸６の回転に伴って回転シャフト１２が回転すると共に、第１切断刃１３の第１回転刃４５、第２切断刃１４の第２回転刃６３、及び第３切断刃１５の第３回転刃７４がそれぞれ回転する。
まず、工作液に含まれる加工屑には、多数の細長い加工屑が互いに絡み合って綿状態となっているものがある。そして、特に、このような綿状の加工屑を、第３切断刃１５の第３回転刃７４が回転することで、円筒状刃部７８によりばらばらに解すことができる。その後、第３切断刃１５の第３回転刃７４により解された加工屑は、第３固定刃７３の各大孔７０を通過した後、第２切断刃１４に吸い込まれる。続いて、特に、複雑に絡み合っていない加工屑は、第３切断刃１５の第３固定刃７３の各大孔７０を通過して、第２切断刃１４に吸い込まれる。 Next, the operation of the machined waste cutting device 1 according to the present embodiment will be described.
When the electric motor 5 is driven when the work liquid is pumped to the machine tool by the pressure feed pump 2, the rotary shaft 12 rotates with the rotation of the rotary shaft 6, and the first rotary blade of the first cutting blade 13 is rotated. 45, the second rotary blade 63 of the second cutting blade 14, and the third rotary blade 74 of the third cutting blade 15 rotate, respectively.
First, some of the work chips contained in the work liquid are in a cotton state due to a large number of elongated work chips being entangled with each other. In particular, such cotton-like work chips can be disintegrated by the cylindrical blade portion 78 by rotating the third rotary blade 74 of the third cutting blade 15. After that, the work chips dissected by the third rotary blade 74 of the third cutting blade 15 pass through each of the large holes 70 of the third fixed blade 73, and then are sucked into the second cutting blade 14. Subsequently, in particular, the work chips that are not intricately entangled pass through each large hole 70 of the third fixed blade 73 of the third cutting blade 15 and are sucked into the second cutting blade 14.

続いて、第２切断刃１４に吸い込まれた加工屑において、第３固定刃７３の各大孔７０は通過したものの、第２固定刃６２の各大孔７０（第３固定刃７３の各大孔７０とその大きさが同じである）に留まった状態となるものがあり、その加工屑は、第２回転刃６３により大まかに切断されて、第２固定刃６２の各大孔７０を通過して、第１切断刃１３に吸い込まれる。一方、第３及び第２固定刃７３、６２の各大孔７０、７０よりも小さい加工屑は、当該各大孔７０、７０を通過して第１切断刃１３に吸い込まれる。 Subsequently, in the machining debris sucked into the second cutting blade 14, although each large hole 70 of the third fixed blade 73 passed, each large hole 70 of the second fixed blade 62 (each large of the third fixed blade 73). (The size of the hole 70 is the same as that of the hole 70), and the machining waste is roughly cut by the second rotary blade 63 and passes through each large hole 70 of the second fixed blade 62. Then, it is sucked into the first cutting blade 13. On the other hand, the work chips smaller than the large holes 70 and 70 of the third and second fixed blades 73 and 62 pass through the large holes 70 and 70 and are sucked into the first cutting blade 13.

続いて、第２固定刃６２の各大孔７０を通過できたものの第１固定刃４４の各小孔４６よりも大きい加工屑は、第１固定刃４４の各小孔４６に留まった状態となり、その加工屑は、第１切断刃１３の第１回転刃４５により細かく切断される。その後、この細かく切断された加工屑は工作液と共に、第１切断刃１３の第１固定刃４４の各小孔４６を通過して、整流板２５の各工作液通過孔４１に吸い込まれる。そして、細かく切断された加工屑を含む工作液は、整流板２５の各工作液通過孔４１からブラケット１８の開口部２０を経由して、圧送ポンプ２の吸込口８、ポンプ本体７内を介して吐出孔９から外部に吐出される。すなわち、第３固定刃７３の各大孔７０を通過した比較的大きな加工屑は、第２切断刃１４により粗切断された後、第１切断刃１３により細かく切断されて、圧送ポンプ２を経由して外部に圧送される。 Subsequently, the work chips that could pass through the large holes 70 of the second fixed blade 62 but were larger than the small holes 46 of the first fixed blade 44 remained in the small holes 46 of the first fixed blade 44. The work chips are finely cut by the first rotary blade 45 of the first cutting blade 13. After that, the finely cut work chips pass through the small holes 46 of the first fixed blade 44 of the first cutting blade 13 together with the work liquid, and are sucked into the work liquid passage holes 41 of the straightening vane 25. Then, the working fluid containing the finely cut machining chips is passed through the suction port 8 of the pressure feed pump 2 and the inside of the pump body 7 from each working fluid passage hole 41 of the straightening vane 25 via the opening 20 of the bracket 18. Is discharged to the outside from the discharge hole 9. That is, the relatively large work chips that have passed through each of the large holes 70 of the third fixed blade 73 are roughly cut by the second cutting blade 14, then finely cut by the first cutting blade 13, and then passed through the pressure feed pump 2. And it is pumped to the outside.

以上説明したように、本実施形態に係る加工屑切断装置１では、圧送ポンプ２に設けられた電動モータ５の回転軸６に相対回転不能に連結され該回転軸６の回転に伴って回転し、圧送ポンプ２の吸込口８から外部に延びる回転シャフト１２と、該回転シャフト１２に連結される第１切断刃１３と、を備え、該第１切断刃１３は、回転シャフト１２が回転自在に挿通される共に圧送ポンプ２に固定され、複数の小孔４６（工作液通過孔）を有する第１固定刃４４と、該第１固定刃４４よりも他端側（圧送ポンプ２の吸込口８側とは反対側）に配置され、回転シャフト１２に相対回転不能に連結される第１回転刃４５と、を備えている。 As described above, in the machined waste cutting device 1 according to the present embodiment, the machine waste cutting device 1 is connected to the rotating shaft 6 of the electric motor 5 provided in the pressure feed pump 2 so as to be relatively non-rotatable, and rotates with the rotation of the rotating shaft 6. A rotary shaft 12 extending outward from the suction port 8 of the pressure feed pump 2 and a first cutting blade 13 connected to the rotary shaft 12 are provided, and the rotary shaft 12 of the first cutting blade 13 is rotatable. A first fixed blade 44 that is inserted and fixed to the pressure feed pump 2 and has a plurality of small holes 46 (working liquid passage holes), and the other end side of the first fixed blade 44 (suction port 8 of the pressure feed pump 2). It is provided with a first rotary blade 45, which is arranged on the side opposite to the side) and is connected to the rotary shaft 12 so as not to rotate relative to each other.

そして、工作液に含まれる、第１固定刃４４に設けた各小孔４６よりも大きい加工屑は、第１固定刃４４に設けた各小孔４６に留まった状態となり、その状態にて第１切断刃１３の第１回転刃４５により細かく切断される。この細かく切断された加工屑は、第１固定刃４４の各小孔４６を通過して、圧送ポンプ２を介して工作液と共に外部に圧送される。この、本実施形態に係る加工屑切断装置１を採用することで、工作液に含まれる加工屑を、圧送ポンプ２の吸込口８から吸い込む手前にて、圧送ポンプ２の吸込口８及びポンプ本体７内に詰まりが生じない程度にまで細かく切断することができる。その結果、ろ過装置等を備えることなく、工作液を圧送ポンプ２により正常に工作機械に供給することができる。これにより、ろ過装置等を備えることによる、設置場所、設備費及びメンテナンスの問題など、多くの問題を解消することができる。また、本実施形態に係る加工屑切断装置１は、その回転シャフト１２が圧送ポンプ２の回転軸６に相対回転不能に着脱自在に連結されているので、本実施形態に係る加工屑切断装置１を、既存の圧送ポンプ２に容易に一体的に取り付けることができ、しかも、容易にメンテナンスすることも可能である。 Then, the work chips contained in the working liquid, which are larger than the small holes 46 provided in the first fixed blade 44, stay in the small holes 46 provided in the first fixed blade 44, and in that state, the first 1 It is finely cut by the first rotary blade 45 of the cutting blade 13. The finely cut work chips pass through each small hole 46 of the first fixed blade 44 and are pressure-fed to the outside together with the working fluid via the pressure-feeding pump 2. By adopting the machining waste cutting device 1 according to the present embodiment, the suction port 8 of the pumping pump 2 and the pump main body are before sucking the machining waste contained in the working liquid from the suction port 8 of the pumping pump 2. It can be cut into small pieces to the extent that the inside of 7 is not clogged. As a result, the work liquid can be normally supplied to the machine tool by the pressure feed pump 2 without providing a filtration device or the like. As a result, many problems such as installation location, equipment cost, and maintenance problems can be solved by providing the filtration device and the like. Further, since the rotary shaft 12 of the machined waste cutting device 1 according to the present embodiment is detachably connected to the rotating shaft 6 of the pressure feed pump 2 so as not to be relatively rotatable, the machined waste cutting device 1 according to the present embodiment. Can be easily integrally attached to the existing pressure feed pump 2 and can be easily maintained.

また、本実施形態に係る加工屑切断装置１では、第１切断刃１３よりも他端側（圧送ポンプ２の吸込口８とは反対側）に連設され、回転シャフト１２に連結される第２切断刃１４を備え、該第２切断刃１４は、回転シャフト１２が回転自在に挿通されると共に圧送ポンプ２に固定され、複数の大孔７０（工作液通過孔）を有する第２固定刃６２と、該第２固定刃６２よりも他端側（圧送ポンプ２の吸込口８側とは反対側）に配置され、回転シャフト１２に相対回転不能に連結される第２回転刃６３と、を備えている。また、第１固定刃４４の小孔４６の大きさは、第２固定刃６２の大孔７０の大きさより小さく設定される。 Further, in the machined waste cutting device 1 according to the present embodiment, the machine waste cutting device 1 is continuously provided on the other end side (the side opposite to the suction port 8 of the pressure feed pump 2) from the first cutting blade 13 and is connected to the rotary shaft 12. The second cutting blade 14 is provided with two cutting blades 14, in which the rotary shaft 12 is rotatably inserted and fixed to the pressure feed pump 2, and the second fixed blade has a plurality of large holes 70 (working liquid passage holes). 62, and a second rotary blade 63 which is arranged on the other end side of the second fixed blade 62 (the side opposite to the suction port 8 side of the pressure feed pump 2) and is connected to the rotary shaft 12 so as to be relatively non-rotatable. It is equipped with. Further, the size of the small hole 46 of the first fixed blade 44 is set smaller than the size of the large hole 70 of the second fixed blade 62.

これにより、工作液に含まれる、第２固定刃６２の各大孔７０よりも大きい比較的大きな加工屑は、第２固定刃６２の各大孔７０に留まった状態となり、その加工屑を第２切断刃１４の第２回転刃６３により大まかに切断することができる。要するに、本実施形態に係る加工屑切断装置１では、第１切断刃１３に加えて第２切断刃１４を備えていることにより、工作液に含まれる比較的大きな加工屑を、まず、第２切断刃１４により粗切断して、その後、第１切断刃１３により細かく切断することができる。 As a result, the relatively large work chips contained in the working liquid, which are larger than the large holes 70 of the second fixed blade 62, remain in the large holes 70 of the second fixed blade 62, and the work chips are placed in the large holes 70 of the second fixed blade 62. 2 The second rotary blade 63 of the cutting blade 14 can roughly cut. In short, the machining waste cutting apparatus 1 according to the present embodiment includes the second cutting blade 14 in addition to the first cutting blade 13, so that relatively large machining chips contained in the working liquid can be first removed. It can be roughly cut by the cutting blade 14, and then finely cut by the first cutting blade 13.

さらに、本実施形態に係る加工屑切断装置１では、第２切断刃１４よりも他端側（圧送ポンプ２の吸込口８側とは反対側）に連設され、回転シャフト１２に連結される第３切断刃１５を備え、該第３切断刃１５は、回転シャフト１２が回転自在に挿通される共に圧送ポンプ２に固定され、複数の大孔７０（工作液通過孔）を有する第３固定刃７３と、該第３固定刃７３よりも他端側（圧送ポンプ２の吸込口８とは反対側）に配置され、回転シャフト１２に相対回転不能に連結される第３回転刃７４と、を備え、第３回転刃７４は、吸込口８とは反対側に向かって突設される円筒状刃部７８を有する断面コ字状に形成される。 Further, in the machined waste cutting device 1 according to the present embodiment, it is continuously provided on the other end side of the second cutting blade 14 (the side opposite to the suction port 8 side of the pressure feed pump 2) and connected to the rotary shaft 12. The third cutting blade 15 is provided, and the rotary shaft 12 is rotatably inserted and fixed to the pressure feed pump 2, and the third fixing blade 15 has a plurality of large holes 70 (working liquid passage holes). The blade 73, the third rotary blade 74 arranged on the other end side of the third fixed blade 73 (the side opposite to the suction port 8 of the pressure feed pump 2) and connected to the rotary shaft 12 so as to be relatively non-rotatable. The third rotary blade 74 is formed in a U-shaped cross section having a cylindrical blade portion 78 projecting toward the side opposite to the suction port 8.

これにより、工作液に含まれる加工屑には、多数の細長い加工屑が互いに絡み合って綿状態となっているものがあり、特に、第３切断刃１５の第３回転刃７４が回転することで、第３回転刃７４の円筒状刃部７８により綿状の加工屑をばらばらに解すことができる。 As a result, some of the work chips contained in the work liquid are in a cotton state due to the large number of elongated work chips being entangled with each other, and in particular, the rotation of the third rotary blade 74 of the third cutting blade 15 causes the work chips to rotate. The cylindrical blade portion 78 of the third rotary blade 74 can disintegrate cotton-like work chips.

なお、本実施形態に係る加工屑切断装置１では、第１切断刃１３、第２切断刃１４及び第３切断刃１５を全て備え、最も良好な形態であるが、第１切断刃１３だけを備えてもよいし、第１切断刃１３及び第２切断刃１４だけを備えてもよい。また、第１切断刃１３及び第３切断刃１５だけを備えてもよい。 The machined waste cutting device 1 according to the present embodiment includes all the first cutting blade 13, the second cutting blade 14, and the third cutting blade 15, which is the best form, but only the first cutting blade 13. It may be provided, or only the first cutting blade 13 and the second cutting blade 14 may be provided. Further, only the first cutting blade 13 and the third cutting blade 15 may be provided.

１ 加工屑切断装置，２ 圧送ポンプ，５ 電動モータ，６ 回転軸，８ 吸込口，１２ 回転シャフト，１３ 第１切断刃，１４ 第２切断刃，１５ 第３切断刃，４４ 第１固定刃，４５ 第１回転刃，４６ 小孔（工作液通過孔），６２ 第２固定刃，６３ 第２回転刃，７０ 大孔（工作液通過孔），７８ 円筒状刃部（刃部） 1 Machining waste cutting device, 2 Pressure pump, 5 Electric motor, 6 Rotating shaft, 8 Suction port, 12 Rotating shaft, 13 1st cutting blade, 14 2nd cutting blade, 15 3rd cutting blade, 44 1st fixed blade, 45 1st rotary blade, 46 small hole (working liquid passage hole), 62 2nd fixed blade, 63 2nd rotary blade, 70 large hole (working liquid passage hole), 78 Cylindrical blade part (blade part)

Claims (1)

工作液を圧送する圧送ポンプに一体的に備えられ、該圧送ポンプの吸込口に吸い込まれる工作液に含まれる加工屑を切断するための加工屑切断装置であって、
前記圧送ポンプの工作液の吸込口から外部に延び、前記圧送ポンプに設けられたモータの回転軸の回転に伴って回転する回転シャフトと、
該回転シャフトに連結される第１切断刃と、を備え、
該第１切断刃は、前記回転シャフトが回転自在に挿通される共に前記圧送ポンプに固定され、複数の工作液通過孔を有する第１固定刃と、該第１固定刃よりも前記吸込口側とは反対側に配置され、前記回転シャフトに相対回転不能に連結される第１回転刃と、を備え、
前記第１切断刃よりも前記吸込口とは反対側に連設され、前記回転シャフトに連結される第２切断刃を備え、
該第２切断刃は、前記回転シャフトが回転自在に挿通されると共に前記圧送ポンプに固定され、複数の工作液通過孔を有する第２固定刃と、該第２固定刃よりも前記吸込口側とは反対側に配置され、前記回転シャフトに相対回転不能に連結される第２回転刃と、を備え、
前記第１固定刃の工作液通過孔の大きさは、前記第２固定刃の工作液通過孔の大きさより小さく、
前記第２切断刃よりも前記吸込口とは反対側に連設され、前記回転シャフトに連結される第３切断刃を備え、
該第３切断刃は、前記回転シャフトが回転自在に挿通される共に前記圧送ポンプに固定され、複数の工作液通過孔を有する第３固定刃と、該第３固定刃よりも前記吸込口とは反対側に配置され、前記回転シャフトに相対回転不能に連結される第３回転刃と、を備え、
第３回転刃は、前記吸込口とは反対側に向かって突設される刃部を有する断面コ字状に形成されることを特徴とする加工屑切断装置。 It is a machining waste cutting device that is integrally provided in the pressure feed pump that pumps the machining fluid and for cutting the machining chips contained in the machining fluid that is sucked into the suction port of the pressure feed pump.
A rotary shaft that extends outward from the suction port of the working fluid of the pump and rotates with the rotation of the rotary shaft of the motor provided in the pump.
A first cutting blade, which is connected to the rotary shaft, is provided.
The first cutting blade is a first fixed blade having a plurality of working liquid passage holes, and the rotary shaft is rotatably inserted and fixed to the pressure feed pump, and the suction port side of the first fixed blade. It is provided with a first rotary blade, which is arranged on the opposite side to the rotary shaft and is connected to the rotary shaft so as to be relatively non-rotatable .
It is provided with a second cutting blade that is connected to the rotary shaft and is connected to the side opposite to the suction port from the first cutting blade.
The second cutting blade has a second fixed blade which is fixed to the pressure feed pump while the rotary shaft is rotatably inserted and has a plurality of working liquid passage holes, and the suction port side of the second fixed blade. It is provided with a second rotary blade, which is arranged on the opposite side to the rotary shaft and is connected to the rotary shaft so as to be relatively non-rotatable.
The size of the working liquid passage hole of the first fixed blade is smaller than the size of the working liquid passing hole of the second fixed blade.
It is provided with a third cutting blade that is connected to the rotary shaft and is connected to the side opposite to the suction port from the second cutting blade.
The third cutting blade has a third fixed blade that is rotatably inserted through the rotary shaft and is fixed to the pressure feed pump and has a plurality of working liquid passage holes, and a suction port rather than the third fixed blade. Is provided with a third rotary blade, which is located on the opposite side and is non-rotatably connected to the rotary shaft.
The third rotary blade is a machined waste cutting device characterized in that it is formed in a U-shaped cross section having a blade portion projecting toward the side opposite to the suction port .
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JP2003011035A (en) 2001-06-29 2003-01-15 Makoto:Kk Submerged pump of coolant supply apparatus
JP2008530426A (en) 2005-03-24 2008-08-07 ブリンクマン プンペン ケー．ハー．ブリンクマン ゲーエムベーハー ウント コー．ケーゲー Pump with cutting impeller and front chopper
JP2013092148A (en) 2011-10-26 2013-05-16 Alfredo A Ciotola Cutter assembly and high volume submersible shredder pump
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