JPH07308844A - Chip pulverizing device - Google Patents

Abstract

PURPOSE:To separate and remove liquid such as cutting lubricant sticking to chips produced during machining, with the use of a single pulverizing device, and to pulverize the chips so as to automatically discharge foreign object mingled in the chips. CONSTITUTION:In a pulverizing device composed of a rotary hammer 5 incorporated in the lower part of a cylindrical container, pulverizing protrusions 6 formed on the rotary hammer 5, a rotary disc incorporated in the container above the hammer, and a chip discharge outlet formed in the bottom part of the container, circumferential grooves and liquid discharge holes 15 are formed at predetermined pitches in the inner wall of the container 2 in a part between the level of the rotary disc and the upper part of a pulverizing protrusion attaching part. Further, chips are rotated along the circumferential grooves by chip rotating blades 14', and liquid such as cutting lubricant separated from the chips under centrifugal force or the like is discharged outside while the chips are pulverized in a pulverizing part in the lower part of the container. Further, foreign object mingled in the chips is subjected to abnormal discrete vibration or the like which occurs when it receives shocks in the pulverizing part, so as to be disposed and is then discharged outside through an opened foreign object discharge door 35.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention separates liquid such as cutting oil adhered to chips by centrifugal force and impact force while rotating the chips produced as a result of machining in a cylindrical container. Moreover, the interaction between the hammer that rotates at the bottom of the cylindrical container and the crushing protrusions attached to the inner wall of the container causes the chips to be torn and shocked, sheared, shredded, crushed, and continuously discharged to remove cutting oil, etc. The present invention relates to a chip crushing device for the purpose of facilitating recovery of chips as a resource at the same time as recovery.

[0002]

2. Description of the Related Art Cutting or crushing is effective for reducing the volume of chips produced as a result of machining and facilitating transportation, separation of foreign substances and handling, and various cutting and crushing devices have been developed. . However, the removal of liquid such as cutting oil adhering to the chips is hardly considered, and even if it is considered, its removal capability is small and practically useless. In addition, it is difficult to completely prevent foreign matter other than chips such as scraps of machined products from entering the chips in most cases, but consideration should be given to the treatment of foreign matter mixed in chips. If not or is being considered,
Detecting an overload on the drive system due to foreign matter being caught, removing the foreign matter by stopping the machine, reversing the cutting blade, or pushing the discharge door by the foreign matter's catching force to get out of the way. Moreover, insufficient methods have been adopted, and the size of foreign matter that can be discharged is also limited.

However, it is necessary to remove the liquid such as cutting oil adhering to the chips from various points, and the chips are stored in a container having a hole at the bottom for a long time and separated by gravity, or the chips are removed. A method is used such as making a hole in the bottom plate of the conveyor to separate a certain amount of liquid by gravity during transportation, or crushing chips and then removing liquid from the crushed chips using a centrifuge or the like. However, these methods have problems because they are not sufficient or expensive.

Further, when the crusher is used as a batch type, the chips on the rotating disk gradually roll up in the container during the crushing operation and gradually become ball-shaped, and the ball-shaped chips are entangled with each other. There was a problem that it was hard to loosen and shook the crusher by swinging around in the cylindrical container.

Further, although foreign matter must be removed by any means, there is no reliable method, and when abnormalities in the drive system due to the entrapment of foreign matter are utilized, overload is prevented by a mechanical method and the apparatus stops. Either it is detected by an electrical method or the device is stopped, but even in these cases, after stopping the machine during operation, it is usually necessary to remove foreign matter remaining at the bottom. Of course, this work was very troublesome in many cases, and there were big problems such as disturbing the whole operation cycle.

[0006]

The problem to be solved by the present invention is to solve the above problems by removing liquid such as cutting oil while the chips are rotating in the crusher and mixing them with the chips. Also, large and small foreign substances are automatically discharged to the outside of the crusher to prevent the supplied chips from becoming a ball on the rotating disk, and to crush and drain the liquid with one crusher. This is to ensure that the foreign matter that has been mixed can be efficiently removed and that the mixed foreign matter is reliably removed.

[0007]

In order to solve the above-mentioned problems, the present invention is equipped with a rotating hammer in the lower part of a cylindrical container, and a crushing protrusion is provided in the vicinity of the hammer rotation outer periphery of the inner wall of the container to provide a rotating hammer. In a chip crushing device equipped with a rotating disk with an appropriate gap between it and a cylindrical container at the top, and a crushing chip discharge port provided at the bottom of the container, crushing with rotating disk 9, 9'level A circumferential groove 16 for guiding the liquid separated from the chips by centrifugal force and impact force is provided on the inner wall of the cylindrical container between the upper portions of the protrusions 6 at an appropriate pitch, and an appropriate circumferential groove 16 is provided at the bottom of the circumferential groove. A liquid discharge hole 17 communicating with the outside of the cylindrical container is provided at a pitch.

Further, a circumferential groove provided in the inner wall of the cylindrical container at a portion between the rotary disk level and the upper portion of the crushing projection mounting portion is provided in the hammer rotating direction so that the chips move smoothly downward while rotating. A helical groove that descends toward the bottom of the container.

The circumferential groove has a rectangular, trapezoidal, U-shaped or semi-circular cross-section so that the separated liquid flows through the bottom of the groove and is smoothly guided to the liquid discharge hole.

Further, in order to smoothly guide the separated liquid to the liquid discharge hole, the lower portion of the groove is horizontal in the cross-sectional shape of the circumferential groove, or is inclined downward toward the outside of the cylindrical container. It is assumed that

In order to smoothly discharge the separated liquid to the outside, a dish-shaped hole is provided on the outer surface of the cylindrical container toward the liquid discharge hole provided at the bottom of the circumferential groove. Shorten the length.

Further, vertical grooves are formed on the outer surface of the cylindrical container through the outlet of the liquid discharge hole so as to accelerate the discharge of the liquid and allow the liquid discharged from the liquid discharge hole to smoothly flow down to the lower liquid receiver. Set up.

Further, the bottom of the liquid discharge hole provided at the bottom of the circumferential groove is lower than the lower surface of the circumferential groove so that the separated liquid accumulated on the lower surface of the circumferential groove can be smoothly guided to the liquid discharge hole. I shall.

In order to prevent the minute chips mixed with the separated liquid from being discharged to the outside together with the liquid as much as possible, and at the same time to facilitate the discharging of the liquid, a liquid having a small hole at the bottom of the liquid discharging hole is provided. The discharge hole piece (37) is fitted so that a small hole is located on the inlet side of the liquid discharge hole to locally reduce the cross section of the liquid discharge hole.

If the chips supplied to the crushing device do not rotate, the liquid adhering to the chips falls into the lower crushing section without being separated, so that the chips are sufficiently removed until they fall into the crushing section. In order to separate the liquid from the chips by centrifugal force, a chip rotating blade 14 for rotating the chips along the inner wall of the cylindrical container is provided between the rotary disk and the hammer. The rotary blade has a structure that can be horizontally swung in order to prevent an overload when a foreign object is caught between the rotary blade and the inner wall of the cylindrical container.

Further, when there is no danger that an object will be caught between the rotary blade and the inner wall of the cylindrical container, the rotary blade provided between the upper rotary disk and the lower hammer is a fixed plate-like chip rotary blade 14 '.

Also, The fixed type rotary vane has its rotation outer end advancing in the rotation direction, and the gap between the rotation outer end and the inner wall of the cylindrical container is reduced.

Further, in order to avoid an overload in the event that a foreign matter is caught between the fixed chip rotary blade and the inner wall of the cylindrical container, the rotary outer end portion of the rotary blade is placed inward in the radial direction of rotation. It allows you to move toward you.

A light impact projection 13 is provided on the inner wall of the cylindrical container in a portion between the rotary disc level and the upper portion of the crushing projection attachment portion for giving a light impact to the rotating chips.

The chips placed on the upper surface of the rotating disk are rotated at the same speed as the rotating disk, and the upper side of the claw is set so as not to prevent the chips from moving toward the periphery of the rotating disk due to centrifugal force. The chip forced rotation claw 11 gradually descends toward the center of the rotating disk. Further, the chip scraping claws 12 are provided above and below the inner surface of the cylindrical container above the rotating disk level.

Further, in order to discharge the liquid on the rotary disc, a large number of holes 24 for passing the liquid are formed in the center of the rotary disc 9 ', and a plate-like plate 22 having a hole in the center is attached below the hole 24. A liquid reservoir 21 is provided below the liquid reservoir 21, and a through hole 25 is further formed in the shaft 19 to connect to the liquid reservoir 21.

Further, liquid discharge holes 17 are formed at the bottom of the inner wall of the cylindrical container above and below the level of the rotating disk at various places.
The circumferential groove 16 provided with or the circumferential partial groove is provided.

A foreign matter discharge door 35 is provided in a hole formed by cutting out a part of a cylindrical container which is a crushing section having a crushing projection on its inner circumference, and foreign matter mixed therein is hit by the hammer 5 or the crushing projection 6 on the crushing section. Abnormal shock vibration that occurs intermittently when jumping is detected using a shock sensor 38 mounted near the crushing protrusion mounting portion, and abnormal change in electrical output of the shock sensor is processed and converted into mechanical operation. The foreign matter discharge door is opened.

Further, an abnormal impact sound or vibration generated intermittently when the mixed foreign matter bounces off the crushing portion by a hammer or a crushing protrusion is sensed by using the microphone 31 or the like, and an abnormal impact sound or vibration is detected once. In order to prevent the foreign matter removal operation from being prematurely performed only by processing abnormal changes in the electrical output of the microphone, etc. that occur intermittently within a certain set time, switch to mechanical operation and open the foreign matter discharge door. It is a thing.

[0025]

[Operation] A rotating disk equipped with a rotating hammer at the bottom of a cylindrical container, crushing protrusions provided on the inner wall of the container near the outer periphery of the hammer rotation, and an appropriate gap provided between the rotating hammer and the cylindrical container. Equipped with a crushing chip discharge port at the bottom of the container, when chips with a liquid such as cutting oil attached or mixed in are supplied to the crushing device for chips, the chips are placed on the rotating disk. It rotates and moves toward the outer circumference of the disk due to centrifugal force, but the chips reaching the outer circumference of the rotation disk collide with the inner wall of the cylindrical container, and then little by little through the gap between the cylindrical container and the rotation disk. The portion provided with the circumferential groove is moved along the groove to the crushing section below. In this way, the chips pass through the liquid removing section while rotating little by little before crushing, so that the liquid can be efficiently separated.
Liquids such as cutting oil that adhere to the chips in this way leave the chips due to impact force and centrifugal force and collect in the circumferential groove.
The liquid is discharged to the outside of the crusher through a liquid discharge hole which is provided at the bottom of the groove at an appropriate pitch and communicates with the outside of the cylindrical container.

When the circumferential groove is formed in a helical shape that descends toward the lower part of the container in the direction of rotation of the hammer, the chips that rotate near the inner wall of the cylindrical container gradually move downward along the groove while rotating. During that time, the liquid such as cutting oil adhering to the chips is separated from the chips and discharged from the liquid discharge hole to the outside of the crusher through the circumferential groove.

Further, since the cross-sectional shape of the circumferential groove at the right angle is rectangular, trapezoidal, U-shaped, triangular, semi-circular or semi-elliptical, large chips are unlikely to enter the groove and liquid separated from the chips. Easily flows away from the chips at the bottom of the groove and easily flows into the liquid discharge hole.

In addition, since the lower part of the groove is horizontal or inclined downward toward the outside of the cylindrical container in the right-angled cross-sectional shape of the circumferential groove, it is difficult for the separated liquid to come out of the groove and the bottom of the groove. It is smoothly guided to the liquid discharge hole.

Further, since a dish-shaped hole is provided on the outer surface of the cylindrical container toward the liquid discharge hole provided at the bottom of the circumferential groove to shorten the length of the liquid discharge hole, the separated liquid has a small resistance. It is smoothly discharged from the liquid discharge hole.

When a vertical groove is formed on the outer surface of the cylindrical container to pass through the outlet of the liquid discharge hole, the length of the liquid discharge hole is shortened to reduce the resistance and the liquid discharged from the liquid discharge hole is also reduced. Smoothly flows down along the vertical groove without spreading on the outer surface of the cylindrical container.

Further, since the bottom of the liquid discharge hole provided at the bottom of the circumferential groove is lower than the lower surface of the circumferential groove, the separated liquid accumulated on the lower surface of the circumferential groove smoothly flows into the liquid discharge hole.

When a liquid discharge hole piece having a small hole at the bottom which can be inserted into the liquid discharge hole is fitted so that the hole is located on the inlet side of the liquid discharge hole, the separated liquid is When passing through the small hole, the small chips mixed with the liquid are prevented from passing, and since the passing liquid flows through the passage having a large cross-sectional area, the chips are efficiently separated and the liquid is discharged.

If the chips do not rotate, or if they do not rotate much, the adhering liquid falls into the lower grinding section without being separated from the chips. Therefore, a chip rotation blade for rotating the chips along the circumferential groove in the cylindrical container is provided between the rotating disk and the hammer, and the chips are sufficiently rotated until they move to the crushing section, and centrifugal force is applied. The liquid is separated, and the separated liquid is discharged from the liquid discharge hole via the circumferential groove.

When there is no risk of foreign matter being mixed in, the rotary blades provided between the upper rotary disk and the lower hammer are fixed plate-shaped chip rotary blades to ensure the rotation of the chips in this part. To do.

Further, since the fixed rotary vane is formed such that the outer end of its rotation advances in the direction of rotation, chips will not be pressed against the inner wall of the cylindrical container more than necessary, and the gap between the inner wall of the cylindrical container and Is small, it is difficult for chips to adhere to or remain on the inner wall of the cylindrical container or the circumferential groove.

Further, when a foreign matter is caught between the fixed chip rotary blade and the inner wall of the cylindrical container, the repulsive force of the foreign matter allows the rotating outer end of the rotary blade to move inward in the radial direction of rotation. It is possible to avoid overloading the drive motor without applying excessive force.

Small light impact projections, which are slightly retracted in the direction of rotation of the hammer, are provided in places on the inner wall of the cylindrical container between the rotary disk level and the upper portion of the crushing projection mounting portion.
Since a slight impact is given to the rotating chips, the separation of liquid such as cutting oil strongly adhered to the chips, which is difficult to separate only by the centrifugal force, is promoted.

The chips on the upper surface of the rotary disk rotate at the same speed as the rotary disk by the chip forced rotation claw, but at this time, some of the liquid such as cutting oil adhering to or mixed with the chips is cut off. It separates from dust and flies to the inner wall of the cylinder. This liquid is collected in the circumferential groove or the circumferential partial groove and is discharged to the outside through a liquid discharge hole provided at the bottom of the groove. The chips scraping on the rotating disk are gradually scraped off from the surroundings by the chip scraping claws provided above and below the inner wall of the cylindrical container above the level of the rotating disk, and the cylindrical container and the rotating disk are gradually scraped. While moving along the inner wall of the cylindrical container through the gap between the two, it moves to the crushing section below. Even in the batch operation in which a large amount of chips are supplied at a time as described above, chips pass little by little through the liquid removal section, so that liquid such as cutting oil is efficiently separated.

Further, in the case of batch operation, a part of a large amount of liquid such as cutting oil mixed with or adhering to the chips supplied to the upper surface of the rotating disk is separated from the chips by gravity, and is separated in the center of the rotating disk. It passes through a large number of holes for liquid passage and drops onto the plate-like plate below it, and then drops from the hole in the center of the plate into the liquid pool. When the crusher is not rotating, the liquid is discharged as it is to the outside through the through hole provided in the shaft. Further, when the liquid is rotating, the liquid stays in the peripheral wall portion of the liquid pool due to the centrifugal force and is discharged to the outside through the through hole of the shaft when the rotation is stopped. This mechanism is especially effective when the chips are accompanied by a large amount of cutting oil.

When a foreign substance such as a part of a machined product is mixed in the chips, the foreign substance moves relatively smoothly together with the chips to the crushing unit, but is hit by a hammer or a crushing protrusion in the crushing unit. Abnormally large shock vibration is generated intermittently when jumping in the crushing part. This is directly detected in the maximum state using the impact sensor attached near the crushing protrusion attachment part, abnormal changes in the electrical output of the impact sensor are processed and converted into mechanical operation, and the foreign matter discharge door is opened. Foreign objects are automatically discharged to the outside of the container.

In addition, again or three times or more within one or more time zones with an appropriate time interval from the time when the abnormal change in the electrical output of the microphone or the like which occurs intermittently within a certain set time is sensed. The foreign matter discharge door is not opened until the foreign matter is detected again for more than the set number of times, and the mixed foreign matter that causes the abnormal impact noise or vibration is discharged. , Or when it is not necessary to perform the discharging operation due to the impact with an open space, or when unnecessary discharging operation is not performed for those that have already been crushed by one impact and need not be discharged to the outside. There is.

[0042]

FIG. 1 is a sectional view of an embodiment of the present invention,
1'is an upper cover, 2 is a draining cylinder, 3 is a crushing part, 4 is a bottom plate, 5 is a hammer, 6 is a crushing protrusion, 7 is a hammer pin,
8 is a hammer disk, 9 is a rotating disk, 10 is a rotating cylinder, 13 is a light impact protrusion, 14 'is a chip rotary blade, 15
Is a blade pin, 16 is a circumferential groove, 17 is a liquid discharge hole, 18 is a separation liquid receiver, 19 is a shaft, 20 is a body cover, 31 is a microphone, 38 is an impact sensor, 32 is a control device,
33 is an operating unit, 34 is a set spindle, 35 is a foreign matter discharge door, and 36 is a spring.

The chips supplied from the upper part to the crusher are placed on the rotating disk 9, but in the continuous operation, the chips are supplied little by little and moved to the outer periphery of the rotating disk by centrifugal force, and the rotating disk and the cylindrical type are used. It passes through the gap between the containers and moves to the crushing unit at the bottom via the liquid removing unit while rotating.

The chips that have fallen into the liquid removing cylinder are continuously rotated by the chip rotating blades 14 ', and gradually move downward along the circumferential groove of the inner wall of the liquid removing cylinder. The liquid such as cutting oil adhering to the chips during that time is separated from the chips by centrifugal force, collects in the circumferential groove, and is discharged to the outside of the crusher through the liquid discharge hole 17 opened at the bottom of the circumferential groove. Note that the liquid strongly adhered to the chips heads toward the circumferential groove due to the impact that when the liquid hits the light impact protrusion 13 while the chips are rotating, the separation from the chips is promoted by the impact.

The holes are often clogged in a centrifuge or the like,
In the present crusher, the inside of the liquid discharge hole 17 is constantly cleaned and clogged by rotating chips. Further, the air pressure of the liquid removing portion is increased by the chip rotating blades 14 ', and the air is discharged to the outside through the liquid discharge hole, so that the liquid discharge is promoted in a form that follows it, and at the same time, the liquid discharge hole is also cleaned. There is also the effect.

Foreign matters such as scraps of the machined product mixed with the chips and supplied to the crusher are removed together with the chips through a gap between the rotating disk and the cylindrical container, except for those which are too large. To move to the crushing section. The foreign matter that reaches the crushing part is hit hard by the rotary hammer and the crushing protrusion, and an abnormally loud noise or shock vibration is generated. This impact is continuously generated while the foreign matter is not broken and the crushing unit is rotated.
This abnormally large impact vibration is detected by the output of the impact sensor 38, and the foreign matter crushing door 35 is operated by electric / mechanical operation.
Open to discharge foreign matter out of the crusher. Since the foreign matter is usually discharged immediately, the opening time of the foreign matter crushing door may be set in advance to be short, or may be opened while the abnormal noise or vibration continues.

When detecting an abnormal sound with a microphone, the microphone is attached to the crusher main body, or is attached separately from the crusher main body. There is an advantage that the sound bridge phenomenon does not have to be taken into consideration when the microphone is mounted away from the main body. Also, instead of just capturing the sound by intensity, it is captured as a sound or vibration of a specific frequency that occurs when a foreign object hits the crusher body. The opening / closing operation of is more reliable.

The grooved portion of the inner wall located between the rotary disk level and the upper portion of the crushing projection mounting portion is worn faster than other portions, but this portion is structured to be separated from other portions. In the case where it becomes worn out and cannot be used, only this part can be replaced, and the material of this part can be different from other parts.

FIG. 2 is a sectional view taken along line AA of FIG. The chips are rotated by the rotary vanes 14 'and moved at high speed near the inner wall of the liquid removing cylinder 2 by centrifugal force.
Since the outer end of rotation of the rotary blade is in a position advanced in the rotation direction, chips are not pressed against the inner wall of the liquid removing cylinder.
Since the distance between the tip of the rotary blade and the inner wall of the liquid removing cylinder is made small, it is extremely unlikely that chips adhere to the inner wall of the liquid removing cylinder or remain in the circumferential groove.

FIG. 3 is a sectional view taken along line BB of FIG. The chips that have passed through the deliquoring section and separated from the liquid are finely crushed in the crushing section by the joint work of the rotary hammer and the crushing projections and discharged from the crushing chip discharge port. On the other hand, the foreign matter that has fallen into the crushing section is subjected to a severe impact by the rotary hammer and the crushing protrusion, and an abnormally large impact vibration and impact noise are generated. By detecting this vibration or sound, the foreign matter discharge door is opened and the foreign matter is discharged to the outside.

FIG. 4 is a three-dimensional partial sectional view of an embodiment of the present invention. Examples of a liquid discharge hole, a foreign matter discharge door and its operation portion, a crushed chip discharge hole, and the like are shown. There are various types of foreign matter discharge doors, but the doors can move in parallel as shown in the figure, or a hinge can be attached to the top of the door to open it, or a hinge can be attached to the upper end of the door's hammer rotation direction. There is a type that attaches the bottom of the lower hand to the outside, or a type that slides the door up and down.

FIG. 5 is a cross-sectional view of another embodiment of the present invention. When the crusher is batch-operated, a large amount of chips are placed on the rotating disk and are mixed or adhered to the chips during supply. Part of the cutting oil accumulates on the rotating disk. In order to discharge this, the periphery of the rotary disk 9'is slightly raised to make a hole 24 for discharging liquid in the central portion, and below that, there is provided a plate-shaped plate 22 having a hole in the central portion, and further below that. This is an example in which a liquid pool 21 is provided and its bottom is connected to a through hole 25 provided in the shaft 19. In this embodiment, since the chip rotary blade 14 is of an oscillating type, the chips will not be clogged between the liquid drain cylinder and the rotary blade even if the distance between the rotary blade and the liquid drain cylinder is wide.

In the case of batch operation, the amount of chips supplied to the rotating disk is large and it takes time to move to the crushing section, so the chips roll on the rotating disk and gradually become spherical and loosen. Will be difficult. In order to prevent this phenomenon, a chip forced rotation claw 11 is equipped, and the chips rotate in a form in which they are almost supplied, while the liquid such as cutting oil supplied together with the chips moves to the peripheral portion due to centrifugal force. , Are collected in the circumferential groove 16 provided in the upper cylinder, and are discharged to the outside of the crusher through the liquid discharge hole 17.

FIG. 6 shows a rotary disk 9 ', a chip forcible rotary pawl 1
1 shows the upper rotating portion such as the chip rotary blade 14 and the like. In this figure, the chip forced rotation pawl is slightly moved forward in the direction of rotation, but at least vertical in order to rotate the chip against the friction with the inner wall of the cylindrical container and the resistance of the scraping pawl. Or you need to move ahead. It should be noted that the chip forced rotation claw is pointed upward and has a saw-tooth shape, but this allows the claw to enter the mass of chips and rotate reliably, and the chips are moved to the outer peripheral part by centrifugal force. This is so as not to interfere.

In FIG. 7, the chip rotary blade is of a fixed type instead of an oscillating type, and the upper end of the rotary blade is cut off slightly obliquely so that the chips to be dropped at this part are not caught on the rotary blade. To do so.

FIG. 8 shows a part of the upper cylinder 1 and the deliquoring cylinder 2 and is a sectional view taken along line CC of FIG. In this figure, the shape of the circumferential groove 16 is a V-shaped groove having a gentle slope on the lower side,
There are shapes as shown in FIG. 9 and other shapes. Further, although the liquid discharge hole 17 is expanded downward, it may be horizontal horizontally or may be horizontal and inclined outward in the direction of rotation. Although a sheet packing is inserted between the upper cylinder 1 and the liquid removal cylinder 2 for sealing in the figure, both end surfaces may be processed to form a seal fit or an O-ring may be inserted. Good.
Further, the upper cylinder and the deliquoring cylinder may not be separated but integrated.

FIG. 9 shows an example of the circumferential groove. There are other rectangular grooves, triangles, U-shapes, etc., but which shape is determined by the state of chips and easiness of groove processing.

FIG. 10 shows a liquid discharge hole piece fitted in the liquid discharge hole. Even if the discharge hole piece is cylindrical,
The groove may be long in the circumferential direction. Incidentally, in the case of the groove-shaped one, several small holes are usually provided in the bottom.

[0059]

According to the first aspect of the present invention, the chip crushing apparatus is a practical deliquescent crushing apparatus with various improvements made to the crushing apparatus which is strong and insensitive to wear due to the hammer and the crushing projection. The great effect of the present invention is that the deliquoring operation, which was not possible with any type of chip crusher, can be performed with one crusher at the same time as the crushing operation. Moreover, the main liquid removal operation is performed from the shavings before grinding, so that liquid separation is efficient. In addition, the drawbacks such as clogging and screen damage due to foreign matter in the conventional chip deliquoring device such as a centrifuge have been solved, and the deliquoring function alone has a great effect.

According to the second aspect of the present invention, the chips supplied to the chip crushing device are reliably sent downward while rotating.
Moreover, there is a great effect that the machining of the groove is easy.

The inventions of claims 3, 4 and 5 exert a great effect in that the separation of the chips and the liquid is promoted and the separated liquid is efficiently discharged to the outside.

The inventions of claims 6, 7 and 8 remarkably improve the deliquoring effect in the deliquoring section of the present chip crushing apparatus, and a sufficient deliquoring effect cannot be expected without these inventions. In particular, in the invention in which the chip rotary blade is fixed and the outer end of the rotation advances in the direction of rotation, and the gap between the outer end of the rotary blade and the inner wall of the dewatering cylinder is reduced, small chips are supplied. Even if it does, chips do not adhere to the inner wall of the dewatering cylinder or remain in the circumferential groove,
There is a great effect that the liquid removal operation can be sufficiently performed.

According to the ninth aspect of the present invention, even when a large amount of chips are supplied to the chip crushing device at one time, the chips are gradually supplied to the liquid removing section and the crushing section, which corresponds to the actual operating conditions. The effect is that you can do it.

According to the tenth aspect of the present invention, the separated liquid can be discharged even when a large amount of chips containing the liquid are supplied to the chip crushing device at one time, and the smooth operation can be achieved in the past. It is possible to efficiently perform the deliquoring and crushing operations by the batch type operation, which was difficult.

According to the eleventh aspect of the present invention, the liquid separated on the rotary disk is discharged to the outside immediately after the chips are supplied to the chip crushing device of the present invention, and the liquid removal efficiency is improved.

Removal of foreign matter mixed in the chips is difficult with a conventional crusher and is not taken into consideration, is removed in a very troublesome manner, or is foreign matter which can be removed even in such a case. However, the invention of Claims 12 and 13 greatly simplifies the removal of foreign substances, and the large and small ones are small. Is automatically discharged regardless of the size, and even if it fails, the foreign matter discharge mechanism operates repeatedly while continuing the liquid removal and crushing operation until it is discharged, so the foreign matter is reliably discharged. There is a very big effect.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view of an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG.

FIG. 4 is a three-dimensional partial sectional view of the one shown in FIG.

FIG. 5 is a partial cross-sectional view of another embodiment of the present invention.

6 is a three-dimensional view of the upper rotating portion of the embodiment of FIG.

FIG. 7 shows a fixed chip rotary blade.

FIG. 8 is a partial view when a circumferential groove is provided.

FIG. 9 shows a typical example of the shape of a circumferential groove.

FIG. 10 is an example of using a liquid discharge hole piece.

[Explanation of symbols]

 1 Upper Cylinder 1'Upper Cover 2 Draining Cylinder 3 Crushing Part 4 Bottom Plate 5 Hammer 6 Crushing Protrusion 9 Rotating Disc 9'Rotating Disc 10 Rotating Cylinder 11 Chip Forced Rotating Claw 12 Scrap Scratching Claw 13 Light Impact Protrusion 14 Chip Rotating blade 14 'Chip rotating blade 16 Circumferential groove 17 Liquid discharge hole 18 Separation liquid receiver 20 Body cover 21 Liquid pool 22 Plate 24 Hole 25 Through hole 26 Air blow hole 31 Microphone 32 Control device 33 Operation part 35 Foreign matter discharge Door 37 Liquid discharge hole piece 38 Impact sensor

Claims (13)

[Claims] 1. A rotating hammer is provided at the bottom of a cylindrical container, a crushing protrusion is provided on the inner wall of the container near the outer periphery of the hammer rotation, and an appropriate gap is provided above the rotating hammer with the cylindrical container. In a chip crushing device equipped with a rotating disk and provided with a crushing chip discharge port at the bottom of the container, a part between the rotating disk (9), (9 ') level and the upper part of the crushing protrusion (6) mounting part. Cylinder crushing, characterized in that circumferential grooves (16) are provided on the inner wall of the cylindrical container at an appropriate pitch, and liquid discharge holes (17) communicating with the outside of the cylindrical container are provided at the bottom of the groove at an appropriate pitch. apparatus. 2. A circular groove provided on the inner wall of the cylindrical container at a portion between the rotary disk level and the upper portion of the crushing protrusion mounting portion is formed into a helical shape which is lowered toward the lower portion of the container in the hammer rotation direction. The chip crushing device according to claim 1. 3. The chip crushing device according to claim 1, wherein the cross-sectional shape of the circumferential groove at right angles is rectangular, trapezoidal, U-shaped or semi-circular. 4. The circular groove having a right-angled cross-section in which the lower portion of the groove is horizontal or is inclined downward toward the outside of the cylindrical container. Chip crushing device. 5. A liquid discharge hole piece (37) for the liquid discharge hole.
The chip crushing apparatus according to claim 1 or 2, wherein the liquid discharge hole piece is fitted into the liquid discharge hole such that a small hole provided at the bottom of the liquid discharge hole is located on the inlet side of the liquid discharge hole. 6. A chip rotary blade (14) which can rotate with the upper rotary disk (9) and the lower hammer (5) and can swing horizontally with the hammer (5). The chip crushing apparatus according to 1 or 2. 7. A fixed plate-shaped chip rotary blade (14 ') which rotates together with an upper rotary disk (9) and a lower hammer (5) is provided between the upper rotary disk (9) and the lower hammer (5).
And the chip crushing device described in 2. 8. The chip as claimed in claim 7, wherein the outer end of rotation advances freely in the direction of rotation and is a fixed plate-like chip rotary blade having a small distance from the inner wall of the cylindrical container. Crushing equipment. 9. A cylindrical container equipped with a chip forced rotation claw (11), which is sharpened upward and whose upper side is gradually lowered toward the center of the rotating disk, on the upper surface of the rotating disk, and above the level of the rotating disk. The chip crushing device according to claim 1 or 2, characterized in that chip scraping claws (12) are provided in places extending over and under the inner wall. 10. A rotating disk (9 ') is provided with a large number of holes (24) in the center thereof, and a plate-like plate (22) having a hole in the center is attached below the hole (24), and a liquid pool (21) is provided below the plate. ) Is further provided, and a through hole (25) is opened in the shaft (19) and is connected to the through hole (25). 11. A circumferential groove (16) or a circumferential partial groove having a liquid discharge hole (17) at the bottom thereof is provided in various places above and below the inner wall of the cylindrical container (1) above the level of the rotating disk. The chip crushing apparatus according to claim 1 or 2, characterized in that 12. A foreign matter discharge door (35) is provided in a hole formed by cutting out a part of a cylindrical container which is a crushing section having a crushing protrusion on the inner circumference, and a foreign matter mixed in the chips is hammered in the crushing section. The impact sensor (38) mounted near the mounting portion of the crushing protrusion detects abnormal shock vibrations that intermittently occur when the crushing protrusion (6) or the crushing protrusion (6) jumps and jumps. The chip crushing apparatus according to claim 1 or 2, wherein an abnormal change in output is processed and converted into a mechanical operation to open the foreign matter discharge door. 13. A microphone (31) is used to detect an abnormal impact sound intermittently generated when a mixed foreign substance jumps and bounces on a crushing portion by a hammer or a crushing protrusion, and an abnormal change in electric output of the microphone is detected. 3. The chip crushing apparatus according to claim 1 or 2, wherein the foreign matter discharge door is opened by processing the above-mentioned processing to change into a mechanical operation.