JP2014065089A - Chip crusher, chip crushing blade and chip crushing data collection method in chip crusher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently crush a long chip and an entangled chip, by making a cutting chip hard to escape from a crushing blade.SOLUTION: A chip crusher 10 comprises a plurality of chip crushing blades 30 having a base part 31 fixedly installed at an interval on a rotational driving shaft 11 provided in a casing 20 opening an upper surface and at least one rotary blade 33 extending in the outer peripheral direction from the base part 31, a plurality of first stationary blades 41a and 41b for crushing the chip by cooperating with a blade part of a side surface of the rotary blade 33 in the chip crushing blades 30 by contacting with a side surface of the respective chip crushing blades 30 and a plurality of second stationary blades 43a and 43b for crushing the chip by cooperating with a blade part of the outer periphery of the rotary blade 33 in the respective chip crushing blades 30. The rotary blade 33 of the respective chip crushing blades 30 comprises scooping blades 34a and 34b having a scooping angle to the rotational circumferential direction and straight blades 36a and 36b extending in the outer peripheral direction from the scooping blades 34a and 34b.

Description

  The present invention relates to a chip crushing device, a chip crushing blade, and a method for collecting chip crushing data in the chip crushing device, and in particular, when cutting chips are crushed, the cutting chips are difficult to escape from the crushing blade. Thus, the present invention relates to a chip crushing device, a chip crushing blade, and a method for collecting chip crushing data in the chip crushing device that enable efficient crushing of long chips and entangled chips.

Since the cutting waste generated in the cutting process is curled in a spiral shape for a long time, it is difficult to handle when transporting or reusing it. Therefore, crushing the said cutting waste into a short dimension is performed using the apparatus which crushes a cutting waste.
Conventionally, as shown in Patent Document 1 and Patent Document 2, for example, a device has been devised for efficiently and reliably crushing cutting waste efficiently and finely.

  In the chip crushing method in the cutting process of Patent Document 1, the metal chips are finely crushed by supplying them from above between a crushing cutter and a crushing roller that are rotatably arranged opposite to each other, and then downward. Discharge. At that time, the crushing cutter and the crushing roller are not cut by regularly repeating the normal rotation for sandwiching the chips from the upper direction to the lower direction and the reverse rotation for rewinding from the lower direction to the upper direction. It is devised to cut again the chips that have passed through and shred.

In the chip crushing device of Patent Document 2, a first-stage crushing part, a second-stage crushing part, and a sieve plate are provided in order from the top. Long flow-type chips intertwined with each other are separated into relatively small portions by the separating portion of the pull-in crushing member of the first stage crushing portion, and then crushed between the blade portion and the spiral blade portion. Said both blade part draws in a part of chip to the 2nd step crushing part side. Subsequently, in the second stage crushing section, the chips are crushed by the outer crushing block and the inner crushing body block. The gap between the two crushing blocks is a size that cannot be sheared, and the crushed chips are rubbed between the two crushing blocks to round the corners. Thereafter, the crushed pieces pass through the holes in the sieve plate and are received by the crushed piece receptacle.
On the other hand, the crushed pieces that cannot pass through the sieve plate are blown up by the blowing blades, and the above crushing process is repeated again. During this time, the crushed pieces collide with each other or collide with each member of the apparatus, and the corners are rounded.

JP 2012-50957 A JP 2000-141160 A

  In the technique of Patent Document 1, by providing a mechanism in which the crushing cutter and the crushing roller rotate in the reverse direction to the normal rotation, the cutting waste that passes without being crushed by the crushing operation by the first normal rotation is crushed by the reverse rotation. Crush with. However, it was not possible to prevent the cutting waste from escaping from the crushing cutter and the crushing roller.

  In the technique of Patent Document 2, a plurality of crushing steps in the first-stage crushing part and the second-stage crushing part and a separation process using a sieve plate are performed to obtain chips with few sharp corners. However, it was not possible to prevent chips from escaping from the blade portion and the spiral blade portion of the first stage crushing portion. In addition, since a plurality of processes are performed, there is a problem that the mechanism becomes complicated.

  This invention is made | formed in view of the above, and when crushing cutting waste, it becomes possible to crush long swarf and entangled swarf efficiently by making it difficult to escape from a crushing blade. An object is to provide a chip crushing blade, a chip crushing device, and a chip crushing data collection method.

In order to solve the above-mentioned problems, a chip crushing device according to the present invention includes a base that is fixedly mounted at a distance to a rotary drive shaft provided in a casing that opens at an upper surface, and at least one that extends in an outer peripheral direction from the base. A plurality of chip breaking blades having rotating blades;
A plurality of first fixed blades that contact the side surfaces of each of the chip crushing blades and cooperate with the blade portion of the side surface of the rotary blade in the chip crushing blades to crush the chips;
A plurality of second fixed blades for crushing the chips in cooperation with the peripheral edge of the rotary blade in each of the chips crushing blades,
The rotary blade of each of the chips crushing blades includes a scooping blade having a scooping angle with respect to the rotational circumferential direction, and a straight blade extending in the outer peripheral direction from the scribing blade.

  Moreover, it is preferable that the rotary blade of each said chip crushing blade is provided with the outer peripheral blade which provides a groove part in the outer periphery, and crushes a chip in the said groove part in cooperation with said 2nd fixed blade.

  Moreover, it is preferable that the scooping blade of the rotary blade has a curved portion from the scooping angle toward the base portion.

  Moreover, it is preferable that the rotary blade of each said chip crushing blade has the said scooping blade, the said straight blade, and the said outer periphery blade in both the normal rotation direction side and a reverse rotation direction side.

  Moreover, the said rotary blade shall set the center angle which the outer periphery from the said straight blade of the normal rotation direction side to the said straight blade of the reverse rotation direction side makes the rotation center of a chip crushing blade 20 degrees-30 degrees. Is preferred.

  Further, the rotary drive shaft has a hexagonal shape in a vertical cross section orthogonal to the axial direction, and each of the chip breaking blades has a rotation center hole portion having a hexagonal cross section that can be inserted into and removed from the rotary drive shaft. It is preferable to have.

The chip crushing blade of the present invention is a chip crushing blade that rotates to crush the chip in cooperation with the first fixed blade and the second fixed blade.
A base fixedly mounted on the rotary drive shaft;
The at least one rotary blade extending in the outer peripheral direction from the base portion, the side blade portion contacting the side surface of the first fixed blade and collaborating with the first fixed blade to crush the chips; and A rotary blade having an outer peripheral blade portion for crushing chips in cooperation with the second fixed blade,
The rotary blade includes a scooping blade having a scooping angle with respect to the rotational circumferential direction, and a straight blade extending in the outer peripheral direction from the scribing blade.

  Moreover, it is preferable that the said rotary blade is provided with the outer peripheral blade which crushes a chip | tip in cooperation with said 2nd fixed blade in the said groove part while providing a groove part in the outer periphery.

  Moreover, it is preferable that the scooping blade of the rotary blade has a curved portion from the scooping angle toward the base portion.

  Moreover, it is preferable that the said rotary blade has the said scooping blade, the said straight blade, and the said outer periphery blade in both the normal rotation direction side and a reverse rotation direction side.

  Moreover, it is preferable that the said rotary blade makes the center angle which the outer periphery from the said straight blade of the normal rotation direction side to the said direct blade of the reverse rotation direction side makes into a rotation center into 20 degrees-30 degrees.

  Moreover, it is preferable that the said base part has a rotation center hole part which makes | forms the hexagonal cross section which can be inserted or removed with respect to the rotational drive shaft which makes a hexagonal shape with the perpendicular cross section orthogonal to an axial direction.

The chip crushing data collection method in the chip crushing apparatus of the present invention is generated in the above-described chip crushing apparatus by an operating time calculation device that calculates the operating time of the chip crushing apparatus and the chip crushing apparatus. An overload occurrence number calculating device for calculating the number of occurrences of an overload state, an operating time data acquired by the operation time calculating device, an information processing device for totaling the overload occurrence number data acquired by the overload occurrence number calculating device, and Install
The data collected by the information processing device is transmitted to a server on the manager side via a network, thereby collecting data for managing the operating state of the chip breaking device.

  According to the chip crushing device of the present invention, the rotating chip crushing blade crushes the chip in cooperation with the first fixed blade while the cutting blade draws the chip with a scooping edge having a rake angle. be able to. The straight blade can also crush the chips in cooperation with the first fixed blade. Furthermore, even if there is swarf that has passed through the crushing by the scooping blade and the straight blade, the straight blade can be crushed in cooperation with the second fixed blade. As described above, by devising the shape of the rotary blade of the chip crushing blade so that the chip does not easily escape, it works in cooperation with the first fixed blade and the second fixed blade to make long spiral chips and entanglements. The chips can be efficiently crushed.

  In addition, the rotary blade of each of the chips crushing blades is provided with a groove portion on the outer periphery thereof and an outer peripheral blade for crushing the chips in cooperation with the second fixed blade in the groove portion. Even if there is swarf that has been crushed by the blade and the straight blade, the outer peripheral blade can cooperate with the second fixed blade to smash the swarf.

  Moreover, since the scooping blade of the rotary blade has a curved portion from the scooping angle toward the base, it is possible to efficiently crush the cutting powder so that the cutting powder does not escape from the scooping blade.

  In addition, since the rotary blades of each of the chips crushing blades have the scooping blade, the straight blade, and the outer peripheral blade on both the normal rotation direction side and the reverse rotation direction side, it is possible to cope with normal and reverse rotation crushing. Become. Thereby, it is possible to improve the crushing efficiency and prevent breakage of each blade when an overload occurs.

  Moreover, the said rotary blade shall set the center angle which the outer periphery from the said straight blade of the normal rotation direction side to the said straight blade of the reverse rotation direction side makes the rotation center of a chip crushing blade 20 degrees-30 degrees. By this, the pocket for scooping the chips can be enlarged and the chips can be efficiently crushed.

  Further, the rotary drive shaft has a hexagonal shape in a vertical cross section orthogonal to the axial direction, and each of the chip breaking blades has a rotation center hole portion having a hexagonal cross section that can be inserted into and removed from the rotary drive shaft. Thus, the rotational drive shaft can be positioned in the rotational direction without a keyway. Each chip crushing blade can be easily attached and detached. Further, since the rotary drive shaft has a simple structure without a keyway, it is possible to avoid an increase in manufacturing cost and a decrease in strength. In addition, when attaching a plurality of chips crushing blades to the rotary drive shaft, the angle of installation of the rotary blades of each chip crushing blades can be changed relatively in multiple stages, so that chips can be more efficiently crushed. . At this time, it is possible to change the mounting state of a plurality of chip crushing blades by changing the type of the chip crushing blade to one, so that the plurality of chip crushing blades crush the chip at a single timing. Therefore, it is possible to avoid an installation state that applies an excessive load and to facilitate manufacture and maintenance of the chip for crushing chips.

  Further, according to the chip crushing blade of the present invention, the rotating chip crushing blade draws the chip with a scooping edge having a rake angle, while the scooping blade cooperates with the first fixed blade to generate the chip. Can be crushed. The straight blade can also crush the chips in cooperation with the first fixed blade. Furthermore, even if there is swarf that has passed through the crushing by the scooping blade and the straight blade, the straight blade can be crushed in cooperation with the second fixed blade. As described above, by devising the shape of the rotary blade of the chip crushing blade so that the chip does not easily escape, it works in cooperation with the first fixed blade and the second fixed blade to make long spiral chips and entanglements. The chips can be efficiently crushed.

  Moreover, since the said rotary blade is provided with the outer periphery blade which cooperates with said 2nd fixed blade in said groove part and provides a groove part in the outer periphery, it crushes by the scooping blade and straight blade of a previous process. Even if there is swarf that passes through, the outer peripheral blade can cooperate with the second fixed blade to crush the swarf.

  Moreover, since the scooping blade of the rotary blade has a curved portion from the scooping angle toward the base, it is possible to efficiently crush the cutting powder so that the cutting powder does not escape from the scooping blade.

  Moreover, since the said rotary blade has the said scooping blade, the said straight blade, and the said outer periphery blade in both the normal rotation direction side and a reverse rotation direction side, it becomes possible to respond to the crushing of forward / reverse rotation. Thereby, the crushing efficiency can be improved and the blade can be prevented from being damaged when an overload occurs.

  In addition, the rotary blade is configured such that the outer periphery from the straight blade on the forward rotation direction side to the straight blade on the reverse rotation direction side has a central angle of 20 ° to 30 ° with the rotation center, thereby reducing chips. The pockets for sowing can be enlarged and the chips can be efficiently crushed.

  In addition, the base has a rotation center hole having a hexagonal cross section that can be inserted into and removed from a rotary drive shaft having a hexagonal shape in a vertical cross section perpendicular to the axial direction. Can be positioned in the rotational direction. Further, it can be easily attached to and detached from the rotary drive shaft. Moreover, when attaching a chip crushing blade to a rotary drive shaft, it can be changed in multiple stages relative to the installation angle of the rotary blade of another chip crushing blade. At this time, since there is only one type of chip crushing blade and the mounting state is different from the state of mounting other chip crushing blades, cutting can be performed at the same time with other chip crushing blades. It is possible to avoid a state in which an excessive load such as crushing powder is applied, and it is possible to facilitate manufacture and maintenance of the chip for crushing chips.

  Moreover, according to the chip crushing data collection method in the chip crushing apparatus of the present invention, the manager side can manage various matters based on the data transmitted to the server on the manager side. For example, if it is a manager of a leasing company, a billing system based on operating hours can be realized based on the data. Moreover, when an overload occurs in the drive motor in actual operation, communication and management of each data at that time can prevent failure and breakage in the chip crushing device. In addition, the user can be advised of necessary information such as how to use the chip breaking device by communication monitoring based on each data transmitted to the server on the manager side.

FIG. 1 is a cross-sectional view seen from the side of the chip breaking device according to one embodiment of the present invention, and is a cross-sectional view taken along the line AA in FIG. FIG. 2 is a front view of the chip breaking device according to one embodiment of the present invention. FIG. 3 is a plan view of the chip breaking device according to one embodiment of the present invention. FIG. 4 is a side view of a chip for crushing chips according to an embodiment of the present invention. FIG. 5 is an explanatory view showing a state of smashing chips in the direction of arrows AA in FIG. FIG. 6 is a schematic explanatory view for explaining a chip crushing data collection method in the chip crushing apparatus according to one embodiment of the present invention.

  Hereinafter, the chip breaking device of the present invention will be described in more detail based on the embodiments shown in the drawings. 1 to 3 show an outline of a chip breaking apparatus according to one embodiment of the present invention. 1 is a cross-sectional view taken along line AA in FIG. FIG. 2 is a front view of the chip crushing apparatus, and FIG. 3 is a plan view of the chip crushing apparatus.

In the chip breaking device 10 of the present embodiment, a rotary drive shaft 11 is rotatably supported by bearing portions 12a and 12b in a casing 20 having an upper surface opened.
The casing 20 includes a front side plate 21, a rear side plate 22, a left side plate 23, a right side plate 24, a front bottom plate 25, and a rear bottom plate 26, and is formed long in the left-right direction as shown in FIGS. .
As shown in FIG. 1, the front bottom plate 25 and the rear bottom plate 26 are inclined obliquely downward toward substantially the center in the front-rear width direction, and the lower ends of the front bottom plate 25 and the rear bottom plate 26 are cut after crushing. A chip discharge port 27 is formed for the powder to fall downward.
The left side plate 23 is fixed to the left ends of the front bottom plate 25 and the rear bottom plate 26 with bolts as shown in FIGS. The right side plate 24 is fixed to the right ends of the front bottom plate 25 and the rear bottom plate 26 with bolts. The front side plate 21 is fixed to the front side of the front bottom plate 25, that is, the left end face in FIG. The rear side plate 22 is fixed to the rear side of the rear bottom plate 26, that is, the right end surface in FIG.

As shown in FIGS. 2 and 3, the rotary drive shaft 11 is rotatably supported by bearing portions 12a and 12b on the left side plate 23 side and the right side plate 24 side, respectively. The left end side of the rotary drive shaft 11 is connected to a drive motor 14 via a speed reducer 13 provided on the left side of the left side plate 23. In the present embodiment, the rotational drive shaft 11 is rotationally driven by the drive motor 14 via the speed reducer 13 so as to be able to rotate forward and reverse.
The rotary drive shaft 11 is positioned almost directly above the chip discharge port 27 as shown in FIG.

A plurality of chip breaking blades 30 are fixedly mounted on the rotary drive shaft 11 at intervals. In this embodiment, as shown in FIG. 2 and FIG. 3, five pieces of the chip crushing blades 30 are fixedly mounted, but the number of the chip crushing blades 30 is not particularly limited.
Each of the chips crushing blades 30 includes a base 31 having a rotation center hole 32 (see FIG. 4) that can be inserted into and removed from the rotary drive shaft 11, and at least one rotary blade 33 extending from the base 31 in the outer circumferential direction. ,have. In the present embodiment, as shown in FIG. 1, the four rotary blades 33 are arranged substantially evenly on the rotation circumference. Each of the rotary blades 33 has a side blade portion and an outer peripheral blade portion.
The shape of the swarf crushing blade 30 will be described later in detail.

Between each said chip crushing blade 30, several 1st fixed blades 41a and 41b contact the side surface of each chip crushing blade 30, and the blade of the side surface of the rotary blade 33 in the said chip crushing blade 30 It arrange | positions so that chip may be crushed in cooperation with a part.
Basically, the first fixed blades 41a and 41b that are in contact with both side surfaces of each of the swarf crushing blades 30 may be provided. In the present embodiment, a plurality of first fixed blades 41a and 41b are provided as shown in FIGS. Each of the first fixed blades 41 a and 41 b has a thickness for closing the space between each of the above-described chip breaking blades 30, the left side plate 23, and the right side plate 24. However, it is not limited to this form. In this case, blade portions that cooperate with the blade portions on the side surfaces of the rotary blades 33 of the respective chip breaking blades 30 are formed on both side surfaces of the first fixed blades 41a and 41b.

  Furthermore, in order to enable crushing at the time of forward rotation and crushing at the time of reverse rotation, in this embodiment, as shown in FIG. 1 and FIG. A total of twelve first fixed blades 41b for time use are provided integrally on the front bottom plate 25 and the rear bottom plate 26 at the lower position. The first fixed blade 41a for forward rotation and the first fixed blade 41b for reverse rotation corresponding to the front and rear are integrally formed at the upper portion as shown in FIG. Moreover, since the integrated upper portion has a chevron shape, the chips introduced into the casing 20 can easily move downward. In addition, a through-hole portion 42 through which the rotary drive shaft 11 can be inserted is provided in the integrated upper portion.

A plurality of second fixed blades 43a and 43b are provided on the rotational circumference of each of the above-described chip crushing blades 30 in cooperation with the peripheral edge of the rotary blade 33 of each of the chip crushing blades 30. Arranged to crush.
Basically, the second fixed blades 43a and 43b corresponding to each of the chip crushing blades 30 may be provided on the rotation circumference of the corresponding chip crushing blade 30, respectively. As shown in FIGS. 1 and 3, second fixed blades 43 a and 43 b corresponding to the above-described five chip breaking blades 30 are integrally provided. Moreover, in order to enable crushing during normal rotation, the second fixed blade 43a for normal rotation is integrally fixed to the lower end of the front bottom plate 25 in the longitudinal direction. On the other hand, in order to enable crushing during reverse rotation, the second fixed blade 43b for reverse rotation is integrally fixed to the lower end of the rear bottom plate 26 in the longitudinal direction. However, it is not limited to this form.

Next, the chip crushing blade 30 will be described in detail.
As described above, the chip crushing blade 30 has at least one rotary blade 33 extending from the base portion 31 in the outer peripheral direction. In the present embodiment, as shown in FIG. 4, the four rotary blades 33 are arranged on the outer periphery of the base portion 31 substantially evenly on the rotation circumference.

Each of the rotary blades 33 includes scooping blades 34a and 34b having a scooping angle with respect to the rotational circumferential direction, and straight blades 36a and 36b extending from the scooping blades 34a and 34b in the outer peripheral direction. The scooping blades 34a, 34b and the straight blades 36a, 36b have the function of side blades for crushing chips in cooperation with the first fixed blades 41a, 41b.
The straight blades 36a and 36b contribute to increasing the strength of the blade edge. If the straight blades 36a and 36b are not provided and only the scooping blades 34a and 34b having a scooping angle are provided, the tip of the scissors becomes an acute angle and the cutting edge is likely to be damaged. Therefore, the widths of the straight blades 36a and 36b are preferably 1 mm to 5 mm from the viewpoint of increasing the blade thickness in order to avoid breakage.
Moreover, said straight blade 36a, 36b also has a function of the outer peripheral blade part which crushes a chip in cooperation with 2nd fixed blade 43a, 43b. Since the straight blades 36a and 36b and the second fixed blades 43a and 43b cooperate to crush the chips that protrude from the scooping blade 34, the chips can be efficiently crushed.

Further, it is desirable that the scooping blades 34 a and 34 b of the rotary blade 33 have curved portions 35 a and 35 b from the scooping angle toward the base portion 31. The reason is that the chips can be efficiently crushed because the chips do not escape from the scooping blades 34a, 34b. The curvature radius R of the curved portions 35a and 35b is preferably 10 mm to 100 mm.
If the scooping blades 34a and 34b make the scooping angle straight and approach the first fixed blades 41a and 41b without providing the curved portions 35a and 35b, the pulling force with respect to the chips becomes weak. Further, when the polygonal shape is used instead of the curved portions 35a and 35b, it is difficult to manufacture the polygonal scooping blades 34a and 34b.

  The rotary blade 33 is provided with a groove portion 38 on the outer periphery thereof, and the groove portion 38 is provided with outer peripheral blades 37a and 37b for crushing chips in cooperation with the second fixed blades 43a and 43b. For example, even if a part of the thin and rich in the thickness direction of the swarf escapes from the scooping blades 34a and 34b and the straight blades 36a and 36b, the outer peripheral blades 37a and 37b block the swarf. Since the place where it became is crushed, a chip can be crushed reliably.

As shown in FIG. 4, the rotary blade 33 has scooping blades 34a and 34b, straight blades 36a and 36b, and outer peripheral blades 37a and 37b on the forward rotation direction side and the reverse rotation direction side. In this embodiment, the scooping blade 34a, the straight blade 36a, and the outer peripheral blade 37a on the forward rotation direction side, and the scooping blade 34b, the straight blade 36b, and the outer peripheral blade 37b on the reverse rotation direction side are provided at symmetrical positions. Thus, by making it possible to deal with forward and reverse crushing, it is possible to improve crushing efficiency and prevent damage to each blade when an overload occurs.
Further, as shown in FIG. 5, the rotary blade 33 has a central angle θ that the outer periphery from the straight blade 36 a on the forward rotation direction side to the straight blade 36 b on the reverse rotation direction side becomes the rotation center of the chip breaking blade 30. 20 ° to 30 ° is desirable. If the angle is smaller than this range, the pocket for scooping chips becomes small.

In the present embodiment, the rotary drive shaft 11 has a hexagonal shape with a vertical cross section orthogonal to the axial direction. On the other hand, the rotation center hole 32 of the base 31 of each chip crushing blade 30 has a hexagonal cross section that can be inserted into and removed from the rotary drive shaft 11 as shown in FIG.
Since the cross-sectional shapes of the rotation drive shaft 11 and the rotation center hole 32 are hexagonal as described above, the following effects are obtained.
The rotational drive shaft 11 is positioned in the rotational direction even without a keyway. Therefore, the plurality of chip breaking blades 30 can be easily attached to and detached from the rotary drive shaft 11. Moreover, since the rotational drive shaft 11 does not have a keyway, the shape does not become complicated, so that an increase in manufacturing cost and a decrease in strength can be avoided.

In addition, when attaching each of the plurality of chips crushing blades 30 to the rotary drive shaft 11, the installation angle of the rotary blade 33 of each chip crushing blade 30 can be relatively changed in multiple stages, so that it is more efficient. Crushing can be realized.
Specifically, the crushing timing can be changed by attaching the plurality of chip crushing blades 30 to the rotary drive shaft 11 so that the rotary blades 33 are shifted from each other by 60 °. As a result, the load applied to each rotary blade 33 can be distributed.
On the other hand, for example, when the cross-sectional shapes of the rotary drive shaft 11 and the rotation center hole 32 are square, the strength of mounting and fixing the chip crushing blades 30 is improved, but there are four rotating blades 33 of each chip crushing blade 30. If there is, the relative positions of the rotary blades 33 do not change. That is, even if each chip crushing blade 30 is shifted by 90 ° and attached to the rotary drive shaft 11, all the rotary blades 33 are in the same relative position.

As another effect, only one type of the chip crushing blade 30 can be used, and the mounting state of the plurality of the chip crushing blades 30 with respect to the rotary drive shaft 11 can be changed variously as described above. For this reason, it is possible to avoid an attachment state in which an excessive load is applied to the plurality of smashing blades 30 so as to smash the swarf at a single timing, and manufacture and maintenance of the smashing blade 30 are facilitated.
Further, when the rotary drive shaft 11 is machined with a lathe, the rotary drive shaft 11 can be gripped by three claws, so that the production efficiency is better than that of, for example, a quadrangular cross section requiring four claws.

  In addition, processing in the case of a round, square, or hexagonal cross-sectional shape can be handled with a standard steel material, but in the case of a cross-sectional octagonal shape, it is difficult to handle with a standard steel material, resulting in an increase in cost. Moreover, although it is a member which does not need to raise precision as the rotational drive shaft 11, in the case of a cross-sectional octagonal shape, it is necessary to raise processing precision. If the machining accuracy is low, it takes time to remove the chip crushing blade 30 from the rotary drive shaft 11. In comparison, it is easy in the case of a hexagonal cross section. Furthermore, in the case of an octagonal cross section, the smashing blade 30 becomes easier to slide with respect to the rotary drive shaft 11 when torque is applied by the amount closer to a circle than in the case of a hexagon. As a result, the strength of the rotary drive shaft 11 is reduced.

In addition, although it is thought that chip | tip can be efficiently crushed also by installing two rotation drive shafts 11 in the chip crushing apparatus 10, in this case, the output of the drive motor 14 is raised or decelerated. Since the mechanism of the machine 13 needs to be complicated, the manufacturing cost increases.

Next, the effect | action of the chip crushing apparatus 10 mentioned above is demonstrated.
Chips such as cutting waste generated by the cutting process are introduced from the opening on the upper surface of the casing 20. At this time, in the casing 20, the rotary drive shaft 11 is rotationally driven by the drive motor 14, and the plurality of chip breaking blades 30 are rotating forward.
As shown in the two-dot chain line in FIG. 5, the chip crushing blade 30 draws the introduced chips with a scooping blade 34a having a scooping angle, while the scooping blade 34a cooperates with the first fixed blade 41a to cut. Crush the flour. At this time, the straight blade 36a also crushes the chips in cooperation with the first fixed blade 41a.
Further, even if there is swarf passing through the crushing by the scooping blade 34a and the straight blade 36a, the straight blade 36a cooperates with the second fixed blade 43a as shown by the two-dot chain line in FIG. Crush. Next, the outer peripheral blade 37a also cooperates with the second fixed blade 43a to crush the chips.

Moreover, depending on the state of the chips, an excessive load may be applied to each of the chip breaking blades 30 and the drive motor 14. In order to prevent breakage of each blade when the overload occurs and improve crushing efficiency, it is effective to reversely rotate the chip crushing blade 30.
Even when the chip crushing blade 30 rotates in the reverse direction, it is basically the same as the crushing operation during the forward rotation described above. That is, when the chip crushing blade 30 rotates in the reverse direction, for example, the chips entangled with the rotary blade 33 are released. After that, the scooping blade 34b cooperates with the first fixed blade 41b to crush the cutting powder while drawing the cutting powder with the scooping blade 34b on the reverse rotation direction side. At this time, the straight blade 36b is also crushed in cooperation with the first fixed blade 41b.
Furthermore, even if there is swarf that has passed through the crushing by the scooping blade 34b and the straight blade 36b, the straight blade 36b crushes the swarf in cooperation with the second fixed blade 43b. Next, the peripheral blade 37b also cooperates with the second fixed blade 43b to crush the chips.

  As mentioned above, although the chip crushing apparatus 10 of this embodiment is an apparatus of a simple structure, by devising the shape of the rotary blade 33 of the chip crushing blade 30 so that chips do not easily escape, In cooperation with the one fixed blade 41a, 41b and the second fixed blade 43a, 43b, it was possible to efficiently crush long spiral chips and entangled chips. That is, the scooping blades 34a and 34b, the straight blades 36a and 36b, the outer peripheral blades 37a and 37b, the first fixed blades 41a and 41b, and the second fixed blades 43a and 43b cooperate in three or four stages. By the crushing operation, the chips could be made difficult to escape from each of the plurality of chip crushing blades 30.

Next, the chip crushing data collection method in the chip crushing apparatus according to the embodiment of the present invention will be described.
In order for the manager of the chip crushing apparatus 10 described above to manage the operating state of the chip crushing apparatus 10, the operating time of the chip crushing apparatus 10 and the occurrence of an overload state that occurs in the chip crushing apparatus 10. It is necessary to collect chip breaking data such as the number of times.
Alternatively, the manager of the leasing company that leases the above-described chip crushing device 10 to the user operates the operation time of the chip crushing device 10 in order to manage the operating state of the chip crushing device 10 used by the user. It is necessary to collect chip crushing data such as the number of occurrences of an overload state generated by the chip crushing device 10.

Therefore, in the chip crushing device 10, as shown in FIG. 6, an operating time calculation device 51 that calculates the operating time of the chip crushing device 10 and an overload state that occurs in the chip crushing device 10. An overload occurrence number calculation device 52 that calculates the number of occurrences, an operation time data acquired by the operation time calculation device 51, and an information processing device 50 that aggregates the overload occurrence number data acquired by the overload occurrence number calculation device 52 ( Computer).
The information processing apparatus 50 can transmit the aggregated data to the administrator-side server 60 via the network 70. The manager side can manage various matters based on the data transmitted to the server 60 on the manager side.

For example, if it is a manager of a leasing company, a billing system based on operating hours can be realized based on the data.
In addition, for example, when an overload occurs in the drive motor 14 in actual operation, such as when a tool enters the chip breaking device, the operation is immediately stopped. By communicating and managing each data at that time, failure and breakage in the chip crushing device 10 can be prevented.
Moreover, necessary information such as how to use the chip crushing device 10 can be provided and advised to the user side by communication monitoring based on each data transmitted to the server 60 on the manager side.

DESCRIPTION OF SYMBOLS 10 Chip crushing apparatus 11 Rotary drive shaft 12a, 12b Bearing part 13 Reduction gear 14 Drive motor 20 Casing 21 Front side plate 22 Rear side plate 23 Left side plate 24 Right side plate 25 Front bottom plate 26 Rear bottom plate 27 Chip discharge port 30 Chip crushing blade 31 Base 32 Rotation center hole 33 Rotating blades 34a, 34b Scrape blades 35a, 35b Curved portions 36a, 36b Straight blades 37a, 37b Outer peripheral blade 38 Groove portions 41a, 41b First fixed blade 42 Through-hole portions 43a, 43b Second fixed blade DESCRIPTION OF SYMBOLS 50 Information processing apparatus 51 Operation time calculation apparatus 52 Overload occurrence frequency calculation apparatus 60 Server 70 network on the administrator side

Claims (13)

A plurality of chips crushing blades having a base portion fixedly mounted at intervals on a rotary drive shaft provided in a casing having an upper surface open, and at least one rotary blade extending from the base portion in an outer peripheral direction;
A plurality of first fixed blades that contact the side surfaces of each of the chip crushing blades and cooperate with the blade portion of the side surface of the rotary blade in the chip crushing blades to crush the chips;
A plurality of second fixed blades for crushing the chips in cooperation with the peripheral edge of the rotary blade in each of the chips crushing blades,
The rotary blade of each of the chip crushing blades includes a scooping blade having a scooping angle with respect to the rotational circumferential direction, and a straight blade extending in the outer peripheral direction from the scribing blade. Crushing equipment.   The rotary blade of each of the chips crushing blades is provided with a groove on the outer periphery thereof and an outer peripheral blade for crushing chips in cooperation with the second fixed blade in the groove. The chip crushing apparatus described.   The chip breaking device according to claim 1 or 2, wherein the scooping blade of the rotary blade has a curved portion from the scooping angle toward the base.   The rotary blade of each said chip crushing blade has the said scooping blade, the said straight blade, and the said outer periphery blade in both the normal rotation direction side and a reverse rotation direction side, The said 1, 2 or 3 characterized by the above-mentioned. Chip crusher.   In the rotary blade, the central angle formed by the outer periphery from the straight blade on the forward rotation direction side to the straight blade on the reverse rotation direction side with the rotation center of the chip breaking blade is 20 ° to 30 °. The chip breaking apparatus according to claim 4.   The rotary drive shaft has a hexagonal shape in a vertical cross section perpendicular to the axial direction, and each of the chip breaking blades has a rotation center hole portion having a hexagonal cross section that can be inserted into and removed from the rotary drive shaft. The chip crushing apparatus of any one of Claims 1-5 characterized by these. In the chip crushing blade rotating in cooperation with the first fixed blade and the second fixed blade,
A base fixedly mounted on the rotary drive shaft;
The at least one rotary blade extending in the outer peripheral direction from the base portion, the side blade portion contacting the side surface of the first fixed blade and collaborating with the first fixed blade to crush the chips; and A rotary blade having an outer peripheral blade portion for crushing chips in cooperation with the second fixed blade,
The said rotary blade is equipped with the scooping blade which has a scooping angle with respect to the rotation circumferential direction, and the straight blade extended in the outer peripheral direction from the said scooping blade, The chip breaking blade characterized by the above-mentioned.   The cutting blade according to claim 7, wherein the rotary blade is provided with a groove portion on an outer periphery thereof and an outer peripheral blade for crushing the chip in cooperation with the second fixed blade in the groove portion. .   The crushed blade according to claim 7 or 8, wherein the scooping blade of the rotary blade has a curved portion from the scooping angle toward the base portion.   10. The chip breaking blade according to claim 7, wherein the rotary blade has the scooping blade, the straight blade, and the outer peripheral blade on both the forward rotation direction side and the reverse rotation direction side.   11. The rotating blade has a central angle formed by an outer periphery from the straight blade on the forward rotation direction side to the straight blade on the reverse rotation direction side to a rotation center, which is 20 ° to 30 °. The chip crushing blade described.   The said base part has a rotation center hole part which makes the cross-sectional hexagon which can be inserted or removed with the rotational drive shaft which makes a hexagon in the perpendicular | vertical cross section orthogonal to an axial direction, The any one of Claims 7-11 characterized by the above-mentioned. The chip crushing blade described in 1. It is the chip crushing data collection method in the chip crushing apparatus of any one of Claims 1-6,
In the chip crushing device, an operation time calculation device that calculates the operation time of the chip crushing device, an overload occurrence frequency calculation device that calculates the number of occurrences of an overload state that occurs in the chip crushing device, An operating time data acquired by the operating time calculation device, an information processing device that tabulates the overload occurrence frequency data acquired by the overload occurrence frequency calculation device, and
Chips for collecting data for managing the operating state of the chip crushing device by transmitting each data collected by the information processing device to a server on the manager side via a network A method for collecting chip crushing data in a crushing device.

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