JP2019093490A - Chip conveyor device - Google Patents

Abstract

To suppress mist generated from coolant liquid from being exhausted through an exhaust port of a case storing the coolant liquid.SOLUTION: A chip conveyor device, which comprises a case for storing coolant liquid introduced from a machine tool and a conveyor that conveys foreign matters in the coolant liquid to an exhaust port of the case using a scraper, further comprises: a door part that stores the foreign matters on an upper surface thereof when being positioned at a first position to close the exhaust port and can turn from the first position to a second position to open the exhaust port; a door closing mechanism that causes the door part to be positioned at the first position until a weight of the foreign matters accumulated in the door part reaches a certain weight; a door opening mechanism that moves on a track of the scraper and then engages with the scraper, turns the door part to the second position in interlock with movement of the scraper to exhaust the foreign matters, when the weight of the foreign matters reaches the certain weight so that the door part turns to a third position between the first position and the second position; and a returning mechanism that returns the door part turning to the second position to the first position.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a chip conveyor device.

  The chip conveyor device recycles the coolant liquid by separating foreign matter (chips etc.) contained in the coolant liquid stored in the case and discharged from the metal working machine tool.

  For example, according to Patent Document 1, when the carriage for collecting foreign matter (chips and the like) is positioned below the discharge port of the case of the chip conveyor device, the door is opened to discharge the chips to the carriage, A tip conveyor device is disclosed that closes the door when the carriage moves from below the outlet of the case.

JP, 2016-196072, A

  In Patent Document 1 described above, while the carriage is positioned below the discharge port of the case of the chip conveyor device, the door remains open. For this reason, mist of the coolant liquid is discharged from the discharge port. The mist of the discharged coolant adheres to the vicinity (floor etc.) of the chip conveyor device, which may increase the cleaning load.

  Therefore, the chip conveyor device disclosed in the present specification aims to suppress the mist of the coolant liquid from being discharged from the discharge port of the case storing the coolant liquid.

  In order to solve such problems, the chip conveyor device disclosed in the present specification includes a case for storing a coolant liquid introduced from a machine tool, and a foreign object in the stored coolant liquid and collected by a scraper. And a conveyor for conveying to the discharge port of the case, wherein the foreign substance is accumulated on the upper surface when the first position is for closing the discharge port, and the discharge port is removed from the first position. A door portion rotatable to a second position to be opened, and a door closing mechanism for positioning the door portion at the first position until the weight of the foreign matter accumulated on the upper surface of the door portion reaches a predetermined weight The door is connected to the door, and when the door is positioned at the first position, the door retracts from the track of the scraper, and the weight of the foreign matter reaches the constant weight, thereby the door Is moved to the track of the scraper and engaged with the scraper when it is rotated to the third position between the first position and the second position, and the door portion interlocks with the movement of the scraper. Is rotated to the second position to discharge the foreign matter, and the door opening mechanism for releasing the engagement with the scraper and the door portion rotated to the second position are returned to the first position. And a return mechanism.

  According to the chip conveyor device disclosed in the present specification, it is possible to suppress that the mist of the coolant liquid is discharged from the discharge port of the case storing the coolant liquid.

FIG. 1 is a side view showing a schematic configuration of a chip conveyor device according to an embodiment. FIG. 2 is a side view showing a schematic configuration of the discharge mechanism. FIGS. 3A to 3C are diagrams (part 1) for explaining the operation of the discharge mechanism. FIG. 4 is a diagram (part 2) for explaining the operation of the discharge mechanism.

  Hereinafter, embodiments of the present invention will be described with reference to the attached drawings. However, in the drawings, the dimensions, proportions, etc. of each part may not be illustrated so as to completely correspond to the actual ones. Also, some drawings may be drawn with details omitted.

  FIG. 1 is a side view showing a schematic configuration of a chip conveyor device 1 according to an embodiment. The chip conveyor device 1 recycles the coolant by separating foreign substances (chips and the like) contained in the coolant discharged from the metal working machine tool 10. The chip conveyor device 1 includes a case 2, a collection mechanism 3, a discharge mechanism 50, a spray device 60, an open / close counter 70 and the like.

  Case 2 stores coolant liquid introduced from metalworking machine tool 10. The case 2 has a flat portion 21 at one half region from the substantially longitudinal center to one end side, and an inclined portion 22 at which the other half region from the approximate center to the other end in the longitudinal direction is inclined upward. It is assumed.

  The inlet 23 of the coolant liquid is provided on the upper wall of the flat portion 21 of the case 2, and the bottom wall on the end edge side of the inclined portion 22 is foreign matter (chips etc.) contained in the coolant. The outlet 24 of the The discharge port 24 is provided with a foreign matter discharge mechanism 50. Further, below the discharge port 24, a carriage 5 for collecting foreign matter is disposed.

  The recovery mechanism 3 includes a pair of drive sprockets 31 disposed on the outlet 24 side of the case 2, a pair of driven sprockets 32 disposed on the inlet 23 side of the case 2, and a conveyor 33. The conveyor 33 includes a pair of endless conveyor chains wound between the drive sprocket 31 and the driven sprocket 32. A number of scrapers 35 are disposed between the pair of conveyor chains. The drive sprocket 31 is rotationally driven by a power source such as a motor and a power transmission mechanism (not shown). As a result, the conveyor 33 circulates in the direction of the arrow, and the scraper 35 collects foreign matter sunk at the bottom of the case 2 in the coolant stored in the case 2 and transports it to the outlet 24 of the case 2.

  As shown in FIG. 2, the discharge mechanism 50 includes a door 51, a wiper 52, a first link member 53, a second link member 54, and a balance weight 56. The wiper 52, the first link member 53, and the second link member 54 are an example of a door opening mechanism. The balance weight 56 is an example of a door closing mechanism and a return mechanism.

  The door 51 is pivotable about a first pivot point 57 from a first position (see FIG. 3A) closing the outlet 24 to a second position (see FIG. 4) opening the outlet 24. Is configured. When the door 51 is located at the first position, the foreign matter transported by the conveyor 33 is accumulated on the upper surface thereof. The door 51 is inclined toward the case 2 in order to return the coolant liquid in the foreign matter washed away by water sprayed by the spray device 60 described later to the case 2.

  The wiper 52 passes through the door 51 and is slidable along the door 51.

  One end of the first link member 53 is connected to the wiper 52, and the other end is connected to one end of the second link member 54.

  One end of the second link member 54 is connected to the first link member 53, and the other end includes the roller 55. The second link member 54 is pivotable about the second pivot point 58 and pivots to a third position (see FIG. 3C) in which the door 51 is between the first position and the second position. Then, the roller 55 is configured to move on the track of the scraper 35.

  The balance weight 56 is provided on the opposite side of the door 51 with the first pivot point 57 interposed therebetween. The balance weight 56 is set such that the door 51 is positioned at the first position until the weight of the foreign matter accumulated on the upper surface of the door 51 reaches a certain weight. That is, the weight of the balance weight 56 is set to be equal to the sum of the weight of the door 51 and the weight of the foreign matter to be discharged by one opening and closing of the door 51.

  The spray device 60 is provided above the discharge port 24. The spray device 60 sprays water on the foreign matter accumulated on the upper surface of the door 51 and flushes the coolant liquid contained in the foreign matter. The spray device 60 sprays, for example, an amount of water equivalent to the amount of water evaporated from the case 2.

  The open / close counter 70 is provided at a position where the open / close of the door 51 can be detected. The open / close counter 70 counts the number of times the door 51 is opened. More specifically, the number of times the door 51 is opened is counted after a new carriage 5 (a carriage with no foreign matter inserted) is installed under the discharge port 24.

  The operation of the discharge mechanism 50 configured as described above will be described using FIGS. 3A to 4.

  FIG. 3A shows a state in which the foreign matter SW is not accumulated on the upper surface of the door 51. When the foreign material SW is not accumulated on the upper surface of the door 51, the weight of the balance weight 56 positions the door 51 at the first position where the discharge port 24 is closed.

  When the chip conveyor device 1 starts operation, the foreign matter SW transported by the conveyor 33 is accumulated on the upper surface of the door 51, as shown in FIG. 3 (b). The spray device 60 disposed above the door 51 sprays water toward the foreign matter SW. Thereby, the coolant contained in the foreign matter SW is washed away. Here, since the door portion 51 is inclined toward the case 2 side, the washed-out coolant liquid is returned to the case 2 along the bottom wall portion of the inclined portion 22.

  If the sum of the weight of the door 51 and the weight of the foreign material SW accumulated on the upper surface of the door 51 exceeds the weight of the balance weight 56, that is, the weight of the foreign material SW accumulated on the upper surface of the door 51 is constant As shown in FIG. 3C, the door 51 pivots about the first pivot point 57 to a third position between the first position and the second position. When the door 51 is rotated to the third position, the roller 55 provided at the other end of the second link member 54 moves on the track of the scraper 35.

  The roller 55 moved onto the track of the scraper 35 engages with the scraper 35 and rotates the second link member 54 about the second fulcrum 58 in conjunction with the movement of the scraper 35 as shown in FIG. 4. . By the rotation of the second link member 54, the wiper 52 provided at one end of the first link member 53 moves downward while scraping foreign matter on the upper surface of the door 51. As a result, the door 51 is pivoted to the second position about the first pivot point 57, and the foreign matter SW is discharged to the carriage 5. When the door 51 is rotated to the second position, the engagement between the roller 55 and the scraper 35 is released. At this time, the open / close counter 70 increments the number of times the door 51 is opened by one.

  Because the balance weight 56 is heavier than the door portion 51, the foreign matter SW is discharged from the upper surface of the door portion 51, and when the engagement between the roller 55 and the scraper 35 is released, the weight of the balance weight 56 causes the door portion 51 to It returns to the first position (see FIG. 3A). Thereby, the door 51 closes the discharge port 24 again.

  As described above in detail, the chip conveyor device 1 according to the present embodiment uses the scraper 35 for the foreign matter in the stored coolant liquid and the case 2 for storing the coolant liquid introduced from the metalworking machine tool 10. And a conveyor 33 for collecting and transporting to the discharge port 24 of the case 2, wherein the foreign material SW is accumulated on the upper surface when located at the first position for closing the discharge port 24, the first position Position the door 51 at the first position until the weight of the door 51, which can rotate to the second position where the discharge port 24 is opened, and the foreign matter SW accumulated on the upper surface of the door 51 reaches a certain weight And a balance weight 56. Further, in the chip conveyor device 1, when the door 51 is positioned at the first position, the roller 55 retracts from the track of the scraper 35, and the weight of the foreign matter SW reaches a constant weight. Turns to the third position, which is between the first position and the second position, the roller 55 moves on the track of the scraper 35 and engages with the scraper 35, and the door 51 is interlocked with the movement of the scraper 35. Is rotated to the second position to discharge the foreign matter SW, and the wiper 52 configured to release the engagement between the roller 55 and the scraper 35, the first link member 53, and the second link member 54 are provided. Then, the balance weight 56 is pivoted to the second position to return the door 51 which has discharged the foreign matter to the first position. Thus, even while the carriage 5 is at the collection position, the door portion 51 is closed except when discharging the foreign matter SW, so that it is possible to suppress that the mist of the coolant liquid is discharged from the discharge port 24 . Therefore, the operation time required for cleaning the coolant liquid adhering to the periphery of the chip conveyor device 1 can be reduced.

  Further, in the present embodiment, while the door 51 is closed, the coolant contained in the foreign matter SW is washed away by the spray device 60, passes along the inclined portion 22, and returns to the case 2. As a result, the coolant fluid can be prevented from being discharged together with the foreign matter SW, so that the replenishment amount of the coolant fluid can be reduced.

  Further, in the present embodiment, since the chip conveyor device 1 includes the open / close counter 70 that counts the number of times the door 51 is opened after the new carriage 5 is installed at the discharge port 24, the chip conveyor device 1 is discharged The total amount of foreign matter SW can be estimated. Thus, when the number of times the door 51 is opened (count number of the open / close counter 70) becomes equal to or more than a predetermined value, notification by a speaker or the like can notify the timing when the cart 5 becomes full. Can be prevented from overflowing.

  In addition, in the said embodiment, although the balance weight 56 was used as a door closing mechanism and a return mechanism, it is not restricted to this. For example, a spring may be used as the door closing mechanism and the return mechanism. In this case, the elastic modulus of the spring may be appropriately set so that the functions as the door closing mechanism and the return mechanism can be exhibited.

  Further, in the above embodiment, in the space above the coolant liquid in the case 2, a partition may be provided to separate the space on the flat portion 21 side and the space on the inclined portion 22 side. When the coolant in the metalworking machine tool 10 is introduced from the inlet 23 of the case 2, the coolant bounces back on the coolant in the bottom wall of the case 2 or in the case 2 to generate mist, but By providing the mist, it is possible to suppress the flow of the mist toward the discharge port 24, and therefore, it is possible to further suppress the discharge of the mist of the coolant liquid from the discharge port 24.

  Further, in the above embodiment, the coolant liquid inlet 23 may be extended so as to be immersed in the coolant liquid. When the coolant is introduced from the inlet 23 of the case 2 by soaking the inlet 23 in the coolant, the mist generated by splashing back on the coolant in the case 2 is directed to the outlet 24. Flow can be suppressed.

  The above embodiments are merely examples for carrying out the present invention, and the present invention is not limited to these, and various modifications of these examples are within the scope of the present invention, and further, the present invention. It is obvious from the above description that within the scope various other embodiments are possible.

DESCRIPTION OF SYMBOLS 1 chip | tip conveyor apparatus 33 conveyor 35 scraper 51 door part 52 wiper 53 1st link member 54 2nd link member 55 roller 56 balance weight 57 1st supporting point 58 2nd supporting point

Claims (1)

A chip conveyor device comprising: a case for storing coolant liquid introduced from a machine tool; and a conveyor for collecting foreign substances in the stored coolant liquid by a scraper and transporting the foreign substance to the discharge port of the case,
A door portion which accumulates the foreign matter on the upper surface when located at a first position closing the discharge port, and is rotatable from the first position to a second position opening the discharge port;
A door closing mechanism for positioning the door at the first position until the weight of the foreign matter accumulated on the upper surface of the door reaches a predetermined weight;
When the door is connected to the door and the door is located at the first position, the door retracts from the track of the scraper, and the weight of the foreign matter reaches the constant weight, whereby the door is When it is rotated to a third position between the first position and the second position, it moves on the track of the scraper, engages with the scraper, and interlocks with the movement of the scraper to move the door portion A door opening mechanism configured to rotate to the second position to discharge the foreign matter and release the engagement with the scraper;
A return mechanism for returning the door portion rotated to the second position to the first position;
Chip conveyor device comprising:

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