JP3522355B2 - Chip clogging prevention mechanism in cutting fluid recovery device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chip clogging prevention mechanism applied to an apparatus for separating and recovering cutting fluid from chips. 2. Description of the Related Art In a centrifugal separator for separating a cutting fluid, chips and cutting fluid are simultaneously supplied to a supply port provided at the center of the centrifugal separator, but the supply port is relatively narrow. In the case where long helical chips generated by heavy cutting are inserted in a state of being entangled with each other, it is easy for these chips to be caught in a gap between an input port and a chute surface. However, there arises a problem that the cutting port is closed together with the chips which are fed in later, thereby making it impossible to separate the cutting fluid. [0003] The present invention has been made in view of such a problem, and its object is to
It is an object of the present invention to provide a new device that can reliably prevent clogging by operating the pushing means in conjunction with the input of chips. [0004] That is, the present invention provides a mechanism for preventing the clogging of chips in a cutting fluid recovery device for achieving such a problem, by introducing chips and cutting fluid to an inlet of a centrifugal separator. A conveyor to be pumped to be charged, an inverted L-shaped conveyor support base for supporting the conveyor, a push-down member that can be inserted into an inlet at a lower end, a stopper member at an upper end, and a tip of the conveyor support base. A sliding rod disposed in the section so as to be movable up and down along the axis of the input port,
A revolving member driven by a driving means of the conveyor and revolving so as to raise the sliding rod so as to retreat the pushing member within the sliding area of the sliding rod above the input port. is there. An embodiment of the present invention will be described below. Each drawing shows an embodiment of the present invention,
Reference numeral 1 in the drawing indicates a known centrifugal separator that separates and collects chips and cutting fluid. First, the centrifuge 1 will be briefly described. The centrifuge 1 is provided with a casing 3 having a hopper-shaped input port 2 at an upper portion thereof, and a drive motor provided immediately below the input port 2. A rotary bucket 5 that is driven by the rotor 4 and rotates; a collection hose 7 that collects a cutting fluid discharged by a centrifugal force from a slit 6 provided in an upper peripheral wall of the rotary bucket 5 into a collection tank (not shown); A chip receiver 8 is provided below the casing 3 for collecting chips discharged by the centrifugal force to the outside of the rotary bucket 5. [0007] On the other hand, reference numeral 10 in the figure denotes an apparatus main body for introducing a mixture of chips and cutting fluid into the centrifugal separator 1 without any trouble. A support base 11 of the apparatus main body 10 has a chip inside. And a frame which forms a space for pumping a cutting fluid, and only the arm portion 12 is shown in cross section in the drawing. Here, a pulley 15 driven by a drive motor 14 is shown. Further, a conveyor 17 is stretched over the pulley 15, and the discharged chips and cutting fluid are pumped to a portion immediately above the centrifugal separator 1, that is, a discharge port 13 at the tip of the arm portion. In addition, the centrifugal separator 1 is configured to be charged into the charging port 2. The arm 2 has the pulley 15 described above.
A pair of long turning arms 18.18 are integrally attached to the shaft 16 at the end of the shaft 16, and these turning arms 18.18 are pivoted so as to enter a sliding area of a sliding rod 20 described later. Thus, these tips are pressed against the roller 23, and the sliding rod 20 integrated therewith is pushed upward so as to retreat from the slot 2. On the other hand, a guide member 25 for guiding the sliding rod 20 is fixed to the end of the arm portion 12 in a vertical direction. The guide member 25 is located right above the inlet 2 of the centrifuge 1. A sliding rod 20 that moves up and down along the axis is slidably inserted. The sliding rod 20 is used to prevent chips from being clogged in the insertion port 2, and has a lower end integrally formed with a push-out member 21 having an outer diameter large enough to be inserted into the insertion port 2. A stopper is provided at the uppermost end of the guide member 25 to stop the sliding rod 20 at a position where the abutment member 21 is inserted into the insertion port 2 by contact with the buffer spring 26 at the upper end of the guide member 25. 22 are integrally mounted. In the apparatus configured as described above, the chips and the cutting fluid that have been discharged from the machine tool now
Is transported to the arm tip of the base 11 by the
3 and sequentially fed into the inlet 2 of the centrifugal separator 1, where it is separated into chips and cutting fluid by a rotary bucket 5 rotating at high speed. On the other hand, the turning arm 18.18 attached to the end of the shaft 16 of the pulley 15 and rotating clockwise in the figure enters the sliding area of the sliding rod 20 with its tip every rotation. Then, as shown in FIG. 1, the sliding rod 20 is pushed upward by contacting the roller 23 attached to the side of the sliding rod 20 from below. When the sliding rod 20 is pushed up to a point where the pushing member 21 is retracted above the insertion port 2, the revolving arm 18 releases contact with the roller 23 and lifts the sliding rod 20 by its own weight. To cause the crushing member 21 at the lower end to enter the inside of the insertion port 2 to remove entangled chips from this portion, and to transmit an impact at the time of the drop to the arm portion 12 to output the discharge port. Chips remaining on the chute surface from 13 to the inlet 2 are scraped off. As described above, according to the present invention, the support base of the conveyor for feeding chips and cutting fluid to the input port of the centrifuge is placed along the axis above the input port. A sliding rod that moves up and down is provided, and this is engaged and disengaged with a rotating member that is driven by the conveyor driving means to rotate, so that the lower end crushing member can be pulled out and inserted into the input port. By moving the sliding rod up and down in synchronism with pumping the cutting fluid, the clogging of chips into the input port can be reliably prevented each time, and at the same time, the impact when the sliding rod falls By utilizing this, the clogging of chips in the charging process can also be removed, and furthermore, by configuring the turning member to be driven by the conveyor driving means, this kind of device can be configured very simply.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of an apparatus showing one embodiment of the present invention. FIG. 2 is a side view of the device shown in a collapsed state. FIG. 3 is a front view showing a part of the device. DESCRIPTION OF SYMBOLS 1 Centrifugal separator 2 Input port 11 Support base 14 Drive motor 15 Conveyor 18 Revolving arm 20 Sliding rod 21 Pushing member 22 Stopper

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-57-211450 (JP, A) JP-A-60-52408 (JP, A) JP-A-60-241952 (JP, A) 319481 (JP, A) Fully open 1988-13639 (JP, U) Fully open 1987-83555 (JP, U) Fully open 1987-161694 (JP, U) Fully open, 3-79847 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) B23Q 11/00 B04B 11/00

Claims (1)

(57) [Claims 1] A conveyor for pumping chips and cutting fluid into an inlet of a centrifugal separator, an inverted L-shaped conveyor support base for supporting the conveyor, A sliding rod that is provided with a crushing member that can be inserted into the loading port, a stopper member at the upper end, and that is disposed at the tip of the conveyor support base so as to be vertically movable along the axis of the loading port. A rotating member driven by the driving means of the conveyor, and revolving so as to raise the sliding rod so as to retract the pushing member in the sliding area of the sliding rod above the insertion port; Clogging prevention mechanism in the cutting fluid recovery device consisting of: