JP5782282B2 - Transfer device - Google Patents

Description

  The present invention relates to a transfer device, and more particularly to a transfer device that separates cleaning liquid and chips discharged from a machine tool or the like and discharges the chips.

  In recent years, various filtering devices have been proposed as a filtering device that separates cleaning liquid and chips discharged from a machine tool such as a lathe and filters the cleaning liquid. The following Patent Document 1 describes a filtration device previously filed by the applicant of the present application.

  FIG. 4 is a front view and a plan view showing a configuration of a filtration device including a conventional transfer device described in Patent Document 1. The end of the waste liquid tank 20 opposite to the opening 21 extends obliquely upward, and a motor 24 that drives the shaft of the chain conveyor 26 is attached to the upper end. The chain conveyor 26 is mounted along the side surface in the longitudinal direction of the waste liquid tank 20 between a disk 29 for returning the chain provided at the lower portion of the opening 21 and the gear 23 driven by the motor 24 at the upper end. In addition, a metal plate 27 having an L-shaped cross section for scraping the chips from the chip discharge port 25 to the chip storage box is mounted between the two chains at a predetermined interval.

JP 2010-137353 A

  In the above-described chip transfer device of the conventional filtering device, the chip is scraped off by a metal plate having an L-shaped cross section. When the operation is continued as it is, the swarf is entangled with the swarf added later, and the rotation of the drum filter may be locked or the drum filter may be damaged. Therefore, it is necessary to stop the filtering device and remove the entangled chips by hand, which is troublesome and reduces the operating rate of the device.

  An object of the present invention is to solve the conventional problems as described above and to provide a transfer device in which chips do not get entangled even when a large amount of chips is introduced.

  The transfer device according to the present invention is a transfer device that separates the swarf and the cleaning liquid from the cleaning liquid mixed with the swarf and transfers the swarf, in parallel with the movement direction of the chain so as to cross over the two chains of the chain conveyor. The main feature of the present invention is that a chip transfer device including a plurality of mounted pressing plates and a scraping plate that is fixed to the pressing plate at the rear end and moves the pressing chips is provided.

Further, the transfer device described above, the pressing plate is provided with approximately the same width as the spacing of the frame of the two chains of the chain conveyor, pivotably fitted to the shaft over two chains of the chain conveyor, It is also characterized by the fact that it is connected in the shape of a butterfly that is adjacent to the holding plate.

  Further, in the transfer device described above, the pressing plate has a width substantially the same as the interval between the two chain pieces of the chain conveyor, and each is fixed to each piece of the two chains of the chain conveyor. There is also a feature.

  The transfer device of the present invention has the following effects by the above-described configuration. (1) Even if a large amount of chips is input, the chips can be discharged without being entangled, so that it does not take time and the operating rate of the apparatus is improved.

(2) It is possible to prevent chips entangled in the scraper from dropping off at the upper part of the gear and entangled with the gear shaft.

(3) The amount of chips that can be transferred by one chip transfer device increases.

FIG. 1 is a front view showing a configuration of a filtration device including a transfer device of the present invention. FIG. 2 is a plan view and a cross-sectional view showing the configuration of the chain conveyor according to the first embodiment of the transfer device of the present invention. FIG. 3 is a plan view and a cross-sectional view showing the configuration of the chain conveyor of the transfer apparatus according to the second embodiment of the present invention. FIG. 4 is a front view and a plan view showing a configuration of a filtration device including a conventional transfer device.

  Embodiments will be described below with reference to the drawings.

  FIG. 1 is a front view showing a configuration of a filtration device including a transfer device of the present invention. This filtration apparatus is large and is divided into a waste liquid tank 20 and a filtrate tank 10 in which the filtered cleaning liquid is accumulated. The waste liquid tank 20 is disposed inside the filtrate tank 10. An opening 21 through which a used cleaning liquid (waste liquid) mixed with chips (metal pieces) 40 flows from a machine tool such as a lathe (not shown) is provided at an upper portion of one end of the waste liquid tank 20.

  In the center of the waste liquid tank 20, a cylindrical drum filter 22 is disposed so that the shaft is horizontal and is rotated by being engaged with two chains of the chain conveyor 36 by gears. The drum filter 22 is configured to filter the waste liquid 17 from the outside to the inside of the drum so as to flow out from the side opening of the waste liquid tank 20 to the filtrate tank 10.

  The drum filter 22 is provided with a fine wire mesh or cloth filter on the entire side surface of the cylindrical shape, rotates in the cleaning liquid, and further sprays the cleaning liquid from the inside of the filter to prevent clogging of the filter. Since the chips 40 remain at the bottom of the waste liquid tank 20, the chips 40 and the cleaning liquid 17 are separated by scraping the chips 40 by the chip transfer device 30 attached to the chain conveyor 35.

  The end of the waste liquid tank 20 opposite to the opening 21 extends obliquely upward, and a motor 24 that drives the shaft of the chain conveyor 35 is attached to the upper end. The two chains 35 of the chain conveyor constituting the transfer device of the present invention are arranged along the side surface in the longitudinal direction of the waste liquid tank 20 and a circular plate 29 provided at the lower part of the opening 21 for turning back the chain. It is mounted between the gear 23 driven by the motor 24.

  A chip transfer device 30 for scraping the chips 40 from the chip discharge port 25 to the chip storage box is mounted between the two chains 35 at a predetermined interval. The length of the chip transfer device 30 is shorter than the mounting interval, and there is a gap between adjacent chip transfer devices 30. The chain 35 moves in parallel with the bottom surface at a certain distance from the bottom surface of the waste liquid tank 20, and the chips 40 accumulated on the bottom surface are transferred by the scraping plate 31 of the chip transfer device 30.

  The filtrate tank 10 is a container for accumulating the filtrate flowing out from the opening on the side surface of the waste liquid tank 20, and the filtrate tank 10 includes a water level gauge, a plurality of pumps and strainers for sending the filtrate to a machine tool (not shown). (Filter) and a pump for sending the filtrate for cleaning the filter to the drum filter 22 through a pressure gauge. The caster 14 is a leg ring for moving the entire filtering device.

  FIG. 2 is a plan view and a cross-sectional view showing the configuration of the chain conveyor according to the first embodiment of the transfer device of the present invention. The chip feeder 30 is mounted so as to cross over the two chains 35 of the chain conveyor at a predetermined interval (an interval corresponding to 12 chain pieces in the embodiment). The chip transporter 30 includes a plurality of metal pressing plates 32 for pressing the chips, and the last pressing plate 32 is made of a metal scraper that pushes and moves the chips 40 substantially perpendicular to the moving direction. The plate 31 is fixed by welding, screwing or the like.

Multiple retainer plate 32 (in the embodiment six) is substantially the same width as the distance between the two pieces of chain 35 of the chain conveyor, over the two chains 35 of the chain conveyor (penetrates) the axis 33 is rotatably fitted, it is connected to the adjacent holding plate and hinge-like. Note that the number of pressing plates 32 is arbitrary.

  By mounting such a chip transfer device 30 on the chain conveyor 35 at a predetermined interval, the chip 40 pressed by the scraper 31 fits in a space sandwiched between the pressing plate 32 and the bottom of the waste liquid tank 20. Further, it is possible to prevent the chips 40 pressed by the scraping plate 31 from rising up to the upper part of the chain conveyor 35 and being entangled with the scraping plate 31 or being sandwiched between the scraping plate 31 and the drum filter 22 and damaging the filter 22. .

  Further, it is possible to prevent the chips 40 entangled with the scraper plate 31 from dropping off at the upper part of the gear 23 and being entangled with the shaft of the gear 23. Furthermore, the amount of chips that can be transferred by one chip transfer device 30 increases.

FIG. 3 is a plan view and a cross-sectional view showing the configuration of the chain conveyor of the transfer apparatus according to the second embodiment of the present invention. In Example 1, although the example which the some presser plate 32 was connected in the shape of a hinge was disclosed, in this case, there exists a possibility that a chip may get entangled in the clearance gap between the adjacent presser plates 32, and it became entangled. The chips must be removed by hand. In Example 2 shown in FIG. 3, the chips 40 are less likely to get entangled in the gap between adjacent pressing plates.

  The holding plate 36 of the chip transfer device 30 of the second embodiment has substantially the same width as the interval between the two chains 35 of the chain conveyor, and each is welded, screwed or screwed to each of the two chains of the chain conveyor. It is fixed by being integrally formed.

  Since the two chains 35 of the chain conveyor are pulled by the gear 23 at the position where the chips 40 are scraped, they are almost straight, and the gap between the adjacent pressing plates 36 is small, and as in the first embodiment. Since there is no penetrating shaft 33, chips are difficult to get entangled.

In the second embodiment, the pressing plate 36 is fixed to the outer side of the plane including the plurality of axes of the chain 35 in parallel with the plane. Thus, since during the chain 35 is in an arc shape chain 35 is fitted with a gear 23 and disc 29, spread the gap between the presser plate 36 adjacent, falling swarf was entangled in the gap is outwardly It becomes easy to do.

  Although the embodiments have been described above, the following modifications may be considered for the transfer device of the present invention. In the embodiments, a filtration device having a filtration function is disclosed, but the present invention can be implemented regardless of the presence or absence of the filtration function. Further, the present invention is not limited to an aqueous cleaning liquid, and can be applied to an apparatus using an arbitrary cleaning liquid, cooling liquid, or lubricating liquid.

  In the second embodiment, an example in which the pressing plate 36 is fixed to the outer side of a plane including a plurality of axes of the chain 35 in parallel with the plane is disclosed. However, the pressing plate 36 has a plurality of axes of the chain 35. You may make it adhere in the plane to contain.

In Example 1 or 2, as shown in FIGS. 3B and 3C, the rear end of each presser plate 32 overlaps the outside of the front end of the rear presser plate to cover the front end of the rear plate. In this way, the rear end of the pressing plate is extended and bent outwardly in a stepped shape (45), or fixed so as to be inclined away from the plane including a plurality of axes of the chain 35 (46). May be. Further, the front end of the top pressing plate may be rounded into a cylindrical shape. Rounding reduces tangling to the front end.
Further, an elastic thin metal plate or resin plate may be stacked and pasted on the bottom surface of each pressing plate 32 in a scaly manner. The plate is preferably longer than the length that can cover the gap at the rear end of the pressing plate 32, and preferably covers the front end of the rear plate. The plate may be attached to each pressing plate 32 except for the rear end, but one long plate may be attached every arbitrary number. In this way, it is possible to reduce the entanglement of chips in the gaps between the pressing plates 32.

  INDUSTRIAL APPLICABILITY The present invention can be applied to a filtration device that separates cleaning liquid and chips discharged from a machine tool or the like and filters the cleaning liquid.

DESCRIPTION OF SYMBOLS 10 ... Filtrate tank 14 ... Caster 17 ... Filtrate 20 ... Waste liquid tank 21 ... Opening part 22 ... Drum filter 23 ... Gear 25 ... Chip discharge port 28 ... Deterrent plate 30 ... Chip transfer device 35 ... Chain

Claims (3)

In the transfer device that separates the swarf and the cleaning liquid from the cleaning liquid mixed with the swarf by scraping off the swarf accumulated at the bottom of the waste liquid tank by the swarf transporter attached to the chain conveyor ,
The chip transporter is attached to the chain conveyor at a predetermined interval, the length of the chip transporter is shorter than the predetermined interval, and there is a gap between adjacent chip transporters. And
The chip transfer device is mounted in parallel with the moving direction of the chain so as to extend over the two chains of the chain conveyor, and has a plurality of widths substantially equal to the interval between the two chain pieces of the chain conveyor. The pressing plate is fixed to the holding plate at the rear end at a substantially right angle to the moving direction, and is moved to move parallel to the bottom surface while maintaining a certain distance from the bottom surface of the waste liquid tank. A transfer device comprising a plate. The pressing plate is pivotally fitted to the shaft over two chains of the chain conveyor, the transfer according to claim 1, characterized in that linked to the adjacent holding plate and hinge-like apparatus. 2. The transfer device according to claim 1, wherein each of the pressing plates is fixed to each piece of two chains of the chain conveyor and is not connected to an adjacent pressing plate .

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