JP7026383B2 - Machining waste squeezing device - Google Patents

Description

The present invention relates to a device for separating a liquid adhering to a work piece such as chips discharged from a machine tool, and particularly presses a work piece to which a liquid such as a coolant or a lubricating oil used at the time of processing is attached. Thereby, it relates to a squeezing device for removing a liquid such as a coolant from the processing waste.

Since the machining chips such as chips discharged from the machine tool are discharged together with the liquid such as coolant, the machining chips are removed by a processing device such as coolant in order to reuse the coolant and the like. The processing device for the coolant or the like has a configuration for recovering the processing waste contained in the coolant or the like, and the recovery method is roughly classified into a magnet method and a scraper method. The magnet method is a type in which a magnet is installed on a conveyor (see Patent Document 1), and the scraper method is a type in which scraping is performed by a scraper (see Patent Document 2).

However, liquids such as coolant are attached to the collected work waste, and when it is discarded as it is, the amount of coolant etc. attached to the work waste is naturally discarded, and the coolant can be reused. Etc. were to gradually decrease.

Japanese Unexamined Patent Publication No. 06-238545 Jitsuto No. 2579236 Gazette Jitsuto 3051145 Gazette

As a solid-liquid separation device having a structure in which work chips are squeezed by a roller, a technique disclosed in Patent Document 3 has been proposed. In this technique, in a state where the work chips are magnetized on the drum, the liquid is removed by a rubber roller for drawing, and the liquid absorbing roller is attached to the drum to absorb the coolant or the like. Further, a squeezing roller for squeezing the liquid absorbing roller is provided, and the liquid absorbed by the liquid absorbing roller is squeezed and collected.

However, in the solid-liquid separation device having the above configuration, since the work chips are compressed by the rubber roller, the work chips themselves cannot be sufficiently squeezed, and the work chips are magnetized and separated from the liquid. The solid-liquid separation is performed to the same extent as the conventional magnet method. That is, although the above-mentioned technique separates the processed waste (solid) and the coolant or the like (liquid), the separated processed waste is still adhered with the coolant or the like as before. .. Further, since a rubber roller is used, when the work chips are to be squeezed by the above device, the surface is deformed even if a strong compressive force is applied, so that the strong pressure cannot be applied and the pressure cannot be applied. Deformation due to wear of the roller surface had to be taken into consideration.

Therefore, in the case of solid-liquid separation by the conventional magnet method, scraper method, or the above-mentioned conventional technique, if the liquid such as coolant adhering to the work chips can be sufficiently separated from the work chips, the liquid such as coolant can be recovered. It was possible to improve the rate. Therefore, a device that enables further liquid separation by squeezing the processed waste after solid-liquid separation has been desired.

The present invention has been made in view of the above points, and an object of the present invention is to provide a squeezing device for further separating a liquid such as a coolant adhering to the processing waste from the processing waste.

Therefore, as a result of diligent research by the inventors of the present application, the present invention has been completed. That is, the present invention is a machine tool squeezing device for squeezing the machine tool discharged and separating the liquid adhering to the machine tool from the machine tool, and is a gear type meshing device that meshes with each other. Each roller constituting the squeezing portion includes a squeezing portion in which the first and second rollers are arranged vertically and a driving portion for applying a driving force to at least one roller of the squeezing portion. Both are characterized in that roller plates formed in a gear shape by plate-shaped members are laminated in the central axial direction.

According to the above configuration, in the gear-shaped rollers that mesh with each other, when one roller rotates, the other roller that meshes also rotates, and the rollers rotate in opposite directions to each other, and the teeth of both rollers. Will approach towards meshing and then separate from each other after meshing. Therefore, if the work chips are supplied to the meshing portion, the work chips are bitten by both rollers and sent to the meshing portion, and the bite by the meshing portion causes the work chips to be squeezed at the time of passage. Further, since each roller is formed into a gear shape as a whole by laminating gear-shaped roller plates, first, the length of the rollers depends on the number of roller plates to be laminated. Secondly, since the individual roller plates are not fixed (integrated) with each other, there is a slight gap (groove shape on the surface) between the individual roller plates due to lamination. ) Can be configured, and this groove-shaped portion can be used to function as a liquid flow guide.

In the invention having the above configuration, the driving unit applies a driving force only to the first roller, and the second roller is rotated by the first roller by meshing with the first roller. By using the driven rollers, the first and second rollers can be rotated at the same rotation speed in a state of being always meshed.

At this time, the second roller can change the relative distance from the first roller, and the amount of work chips supplied to the meshing portion by being urged toward the first roller. It is possible to apply an appropriate pressure required for squeezing while adjusting the gap (distance between the mutual teeth and the tooth groove) of the meshing portion according to the above. When the second roller is arranged at the upper position, the above-mentioned urging may be caused by the own weight of the second roller, but a spring member that further pushes downward may be installed.

Further, when the first roller is arranged at a lower position, the reference circle diameter of the first roller is configured to be larger than the reference circle diameter of the second roller, so that the tooth groove of the second roller is filled with machine waste. By placing the tooth on the tooth groove, it becomes easy to supply the tooth groove to the meshing portion, and by forming the tooth groove in a gentle arc shape, the liquid squeezed out when the squeezing starts can flow down without being stuck in the tooth groove.

In the above configuration, the circular pitches of the first and second rollers are equal to each other, so that the meshing state is stable, and the roller plates in the first and second rollers are stable. The roller plates constituting both rollers can be meshed on a one-to-one basis if they are configured to have the same wall thickness.

According to the present invention, the processing waste collected from the liquid such as coolant in advance by a solid-liquid separator or the like is compressed by two rollers to separate the liquid such as coolant adhering to the processing waste from the processing waste. Can be done. By driving only one of the rollers, the other rollers that mesh with the rollers can also be rotated in opposite directions, and the work chips can be easily squeezed by passing the work chips through the meshed portions of both rollers.

In the case of a configuration in which one roller is movable and the other roller is urged, the pressing force due to the urging can be adjusted, and the pressing pressure is adjusted to adjust the pressing pressure. can do.

(A) is an explanatory diagram showing the whole embodiment of the present invention, and (b) is an explanatory diagram showing a partial cross section. (A) is an explanatory diagram showing the state of the roller plate constituting the lower (first) roller, and (b) is an explanatory diagram showing the state of the roller plate constituting the upper (second) roller. It is explanatory drawing which shows the structure of two kinds of rollers. It is explanatory drawing which shows the meshing state of two kinds of rollers. It is explanatory drawing which shows the operation mode of embodiment of this invention. It is explanatory drawing which shows the operation mode of embodiment of this invention. It is explanatory drawing which shows the operation mode of embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows the whole of this embodiment. 1 (a) is an overall perspective view, and FIG. 1 (b) is a sectional view taken along line IB-IB. As shown in these figures, the present embodiment is configured to include the squeezing portion 2 inside the housing 1. Further, the squeezing portion 2 is composed of two rollers 3 and 4, and is supported by the side surface of the housing 1. Further, the upper part of the housing 1 is provided with a supply unit 11 for supplying the processed waste to be squeezed at an appropriate position, so that the processed waste can be supplied. Further, in the lower part of the housing 1 (below the rollers 3 and 4), the solid-liquid separated processing waste and the liquid are individually collected. For example, as shown in the figure, a recovery space 12 is provided in the lower part of the housing 1, and in this recovery space 12, a solid recovery unit 5 for recovering processed waste after squeezing and a liquid such as a coolant squeezed by squeezing are placed in the recovery space 12. If the liquid recovery unit 6 for recovery is installed, the solid-liquid separated processing waste and the liquid can be recovered individually.

Of the two different rollers 3 and 4 constituting the pressing portion 2, a driving force is applied to the first roller 3 arranged at the lower level, and a rotational driving force is generated outside the housing 1. A motor 7 is provided. The motor 7 is installed on the side surface of the housing 1 and drives the rotating shaft 31 of the first roller 3 via a speed reducer 21 for deceleration. On the other hand, the rotation shaft 41 of the second roller 4 arranged on the upper side can move in the vertical direction along the elongated hole 13 provided on the side surface of the housing 1. The rotating shaft 41 may be configured to limit the movement in the axial direction by passing the flange 22. Further, the rotating shaft 41 of the second roller 4 is urged downward (in the direction of the rotating shaft 31 of the first roller 3) by a compression spring or the like (not shown). For this urging, the own weight of the first roller 3 may be used, but if the urging force is insufficient only by the own weight, a compression spring or the like may be used to compensate.

The two rollers 3 and 4 are both provided in a gear type and are installed in a state of being meshed with each other, and the rotational driving force applied to the first roller 3 is the meshing. Is transmitted to the second roller 4, and both rollers 3 and 4 are configured to rotate in synchronization with each other. Therefore, the two rollers 3 and 4 rotate in opposite directions, and the bitten object can be sent out in a specific direction at the intermediate (meshing) portion between the two rollers 3 and 4. Further, although the details will be described later, each of these rollers 3 and 4 is configured in a state where a plurality of plate-shaped roller plates are laminated.

Here, the details of both rollers 3 and 4 will be described. FIG. 2A shows the first roller 3, and FIG. 2B shows the second roller 4. As shown in FIG. 2A, the first roller 3 is configured by laminating a plurality of plate-shaped roller plates 30 (three plates are shown in the figure for convenience). All of these roller plates 30 are the same and are provided in the same shape and size. Teeth 31 and tooth grooves 32 having a predetermined pitch are provided around the individual roller plates 30 to form a tooth pattern as a whole. Further, a shaft hole 33 is formed through the center, and a key hole 34 is provided in the shaft hole 33. The key hole 34 transmits a driving force by inserting a key (not shown) between the key hole 36 and the key groove 36 of the rotary drive shaft 35, and is shown as an example for transmitting the rotary drive force. There is. Therefore, instead of the key hole 33, a flat hole 43 such as the second roller 4 described later may be formed. In this case, the flat portion 46 is also provided on the rotating shaft 45. In addition, it may be transmitted by a polygonal shaft hole and a rotating shaft.

With the above configuration, a large number of roller plates 30 having the same shape can be stacked in the axial direction of the rotating (driving) shaft 45, and by bringing them into close contact with each other, a gear-type roller having a predetermined length as a whole can be laminated. 3 can be formed. The number of roller plates 30 to be laminated can be changed according to the desired length of the rollers 3. Then, since the key hole 34 of each of these shaft holes 33 is locked by the key together with the key groove 46 of the single rotating shaft 45, the whole is rotated in the same manner by the rotation of the rotating shaft 45. Therefore, this rotation can be equated with the rotation of the integrated roller 3 as a whole.

Further, the second roller 4 has the same configuration, and is configured by laminating a plurality of plate-shaped roller plates 40 (also shown in the figure for convenience). Further, each roller plate 40 is provided in the same shape and size, is a gear type having teeth 41 and tooth grooves 42 formed around it, and is provided with a shaft hole 43 in the center. The shaft hole 43 schematically shows a flat hole. The flat hole is a hole having a shape in which a flat non-penetrating portion is provided in a part of a circular hole. By providing a similar flat portion 46 on the rotation shaft 45, the flat portions abut against each other to exert a rotational force. It is a configuration to transmit.

Since the second roller 4 is a driven roller, the driving force is transmitted from the roller plate 40 to the rotating shaft 45. However, if the second roller 4 can rotate as the driven roller, the driving force is applied to the rotating shaft 45. It may be configured so that only the roller plate 40 can rotate at a predetermined position without transmitting. Further, on the contrary, a transmission structure using a key hole or the like may be used. In the present embodiment, when rotating only the roller plate 40, there is a concern about wear and the like, so a configuration is provided in which a rotational force is transmitted to the rotating shaft 45, and both ends of the rotating shaft 45 can be freely rotated by bearings. Explains to.

With the above configuration, the second roller 4 is formed by stacking a large number of roller plates 40 having the same shape in the axial direction of the rotating (driving) shaft 45 to form a gear-shaped roller as a whole, and a plurality of rollers. By bringing the plates 40 into close contact with each other, a gear-type roller 4 having a predetermined length is formed as a whole. Even in this case, the number of laminated roller plates 40 may be changed according to the desired length of the rollers 4, and the roller plates 40 may be manufactured by a plate-shaped member having the same wall thickness as the roller plates 30 in the first roller 3. Is sufficient to stack the same number of layers as the number of layers in the first roller 3.

Since both the roller plates 30 and 40 are made of a plate-shaped member (for example, a steel plate or the like), a key hole is provided after the circular shaft hole is formed as in the case of manufacturing a general gear. However, it is easy to provide the shaft holes 33 and 43 by press working. Therefore, it is easier to make a flat hole than to make a shaft hole 33, 43 having a complicated shape having a key hole. Further, when the roller plates 30 and 40 are manufactured by press working, burrs are removed, so that the peripheral edges of the roller plates 30 and 40 to be laminated are not a little chamfered. Further, the method for manufacturing the roller plates 30 and 40 is not limited to press working, and a method of cutting out by laser cutting can be used. In this case, by using carbon steel as the material, the cut portion is heated, so that a simple heat treatment effect can be obtained (strengthened). Even in such a processing method, the cut portion is chamfered so that burrs do not remain.

As described above, since the first roller 3 and the second roller 4 are configured by laminating a plurality of roller plates 30 and 40, as shown in FIG. 3, the axes of both rotation axes 35 and 45 are aligned. By arranging the rollers 3 and 4 in parallel, the individual roller plates 30 and 40 constituting both rollers 3 and 4 are individually meshed with each other. In this case, as shown in the figure, the meshing is a state in which the teeth of the roller 4 on one side (second) are located inside the tooth grooves of the roller 3 on the other side (first), and the processing chips are described later. Even if there is a gap between the two when the tooth is bitten, if one tooth is located inside the other tooth groove, the tooth is in a loose state but is in mesh.

Further, it is not necessary to mesh exactly one-to-one between these plates 30 and 40, and one roller plate may be located at the boundary between the other two roller plates. Even in such a state, the meshed state is maintained. That is, even if the roller plates 30 and 40 are individually meshed, they can rotate at the same time due to the intervention of the rotating shafts 35 and 45, so that the rotational force can be transmitted by the meshing as a whole. Is.

By the way, in the present embodiment, the first roller 3 and the second roller 4 have different diameters (diameters of reference circles). Specifically, the reference circle diameter of the first roller 3 arranged at the lower level is increased, and the reference circle diameter of the upper second roller 4 is decreased. The size ratio is based on 1.25 times, and is adjusted so that the circle pitch is equal at the ratio before and after that.

For example, as shown in FIG. 4, the first roller diameter D1: the second roller diameter D2 = 10: 8, the number of teeth of the first roller 3 is 10, and the number of teeth of the second roller 4 is set. By setting it to 8, the circle pitch can be made equal at the diameter ratio of 1.25 times the above. At this time, the pitch angle P1 when the number of teeth is 10 is 36 °, and the pitch angle P2 when the number of teeth is 8 is 45 °.

The above ratios and pitch angles are all examples, and the ratios are not limited to these and may be 1.5 times or 2 times. However, when the ratio is 1 time (same diameter), the supply of work chips becomes unstable, so it is preferable to set the ratio to 1.2 times or more.

If the specific dimensions are shown for reference, for the second roller 4 having 8 teeth, if the diameter of the tooth tip circle is 56 mm, the circle pitch is 7π mm, whereas 1. If the number of teeth of the first roller 3 at a ratio of 25 times is 10, and the diameter of the tip circle is 70 mm, the circle pitch is also 7π mm.

Next, the operation mode of this embodiment will be described. FIG. 5 shows an operation mode. As shown in this figure, the first roller 3 and the second roller 4 are in a state of rotating in a state of being meshed with each other, and the rotation direction thereof is installed in the housing at the meshing portion 20. The direction is such that it is bitten on the side of the supply unit 11 and sent out to the opposite side. The meshing portion 20 means a portion in which the tooth 31 of one (for example, the first roller 3) is present inside the tooth groove of the other (for example, the second roller 4).

When the machining chips X1 ... Xi are charged in the meshing state as described above, they descend along the inclined surface of the supply portion 11 and sequentially move from the head machining scrap X1 toward the meshing portion 20 of the roller. It will be. Then, when the machining waste X1 moves to the vicinity of the meshing portion 20, the closest tooth groove 32 among the first rollers 3 arranged below moves toward the meshing portion 20, so that the machining waste X1 Will be received and will be guided to the meshing portion 20. When the teeth 41 of the second roller 4 come into contact with the machine waste X1 guided in this way, the work waste X1 is sandwiched between the tooth grooves 32 of the first roller 4 and both rollers. It is in a state of being bitten by 3 and 4 (see FIG. 5A).

Squeezing is started when the rollers 3 and 4 are in a state of being bitten, and the liquid adhering to the work piece X1 starts to be separated from the work piece X1. As the rotation of the rollers 3 and 4 further progresses, the machining waste X1 moves in a state of being bitten by both rollers 3 and 4, and almost the entire meshing portion 20 is squeezed (FIG. 5 (b). )reference). At this time, since the processing waste X1 is bitten and the processing waste X1 exists between the rollers 3 and 4 (teeth 31 and the tooth groove 42), the second roller 4 is moved upward by a range corresponding to the processing waste X1. Will move to. In this movement, the entire roller 4 rises with respect to the rotation shaft 45, but since it is urged in the downward direction, it can be lowered again after the work piece X1 is separated. In the process of passing the work waste X1, a pressing force (squeezing force) can be applied to the work waste X1.

As described above, the processing waste X which is appropriately agglomerated is not squeezed instantaneously (temporarily), but is gradually squeezed as a whole with the rotation of the rollers 3 and 4. Then, after the processing waste X1 has passed through the meshing portion 20, it is released from the bitten state by the rollers 3 and 4, and is discharged from the pressing portion 2 by free fall on the opposite side of the supply portion 11.

By the way, since the liquid separated from the processing waste X by the pressing by the rollers 3 and 4 is in a state where it can freely flow down, it moves downward along the surface of the first roller 3. However, as shown in FIG. 6, since the liquid separated at the beginning of squeezing is separated before the apex of the first roller 3, it flows down before passing over the roller 3. At this time, since the shape of the tooth groove 32 is formed in a gentle arc shape, the tooth groove 32 can flow down without staying in the tooth groove 32. That is, when the tooth tip shape and the tooth bottom shape are formed in an arc shape (not an involute curve), a gentle curve can be formed by the shape. Further, the difference between the diameter of the tooth tip circle (70 mm in the above example) and the diameter of the tooth bottom circle is reduced with respect to the length of the circle pitch (7π mm in the above example) (of the tooth bottom circle in the above example). By setting the diameter to 62 mm), the change in the curve from the tooth tip to the tooth bottom can be moderated.

By forming the tooth groove 32 with such a gentle arc-shaped tooth bottom shape, the tooth groove 32 does not have a bottom for holding the liquid until just before reaching the meshing portion 20, so that the liquid separated from the work chips. Can flow down in the direction opposite to the rotation direction of the first roller 3. Then, a part of the liquid flowing down in this path spontaneously falls when it exceeds the tip of the tooth 31 protruding to the rearmost side, or flows down vigorously on the surface of the roller 3 and is installed below the liquid recovery unit. It will be recovered by 6. The liquid that could not fall naturally can be recovered by finally moving to the lowermost part of the first roller 3 and then dropping onto the liquid recovery unit 6.

The liquid produced by squeezing the work waste X most often starts to shrink, so that the work waste X (all or part of it) adheres before reaching the meshing portion, as described above. The liquid is almost separated. After that, the work waste X (all or a part thereof) is continuously squeezed even at the central position of the meshing portion 20, but the liquid separated by this squeezing becomes a small residual portion. Therefore, the liquid generated at the position beyond the meshing portion 20 moves (flows) on the surface of the roller 3 and drops (flows) at the lowest position, not in an amount sufficient to naturally flow (fall) in the above-mentioned state. Or it will fall). In this state, the work waste X is sandwiched between the two rollers 3 and 4, and only the liquid flows down.

The work chips X that have passed through the meshing portion 20 (disengaged from the bitten state) are sent out by the two rollers 3 and 4 that rotate in the bitten state, and fall freely with the inertia of the feeding speed, so that they are parabolas. It will fall while drawing, and will be collected by the solid collection unit 5 below.

As described above, since the liquid separated by squeezing and the processing waste X have different falling directions, the liquid recovery unit 6 is installed in a range sufficiently including the lowest end of the first roller 3 to recover the solid. By installing the unit 5 at a position adjacent to the liquid collection unit 6 near the place where the work waste X falls, both can be collected individually.

FIG. 6 shows the state of the rollers 3 and 4 from the cross-sectional direction, but the state of the rollers 3 and 4 from the front direction is a plurality of states along the axial direction of the rollers 3 and 4 as shown in FIG. Since the roller plates 30 are laminated, it is possible to squeeze a plurality of work chips by dividing them in the axial direction.

At this time, as shown in FIG. 7, the boundary line C of the first roller 3 is exposed at the boundary where the individual roller plates 30 are adjacent to each other. This boundary line C becomes a mere linear shape when the opposite ends of the adjacent roller plates 30 are machined at right angles and are in close contact with the rotating shaft 31 in the same state. If it is chamfered by removing burrs or if there is a slight deviation due to the presence or absence of play with respect to the rotating shaft 31, it will be formed in a groove shape. This groove-shaped portion can also function as a guide portion for guiding the flow direction of the liquid moving on the surface of the roller 3. Since surface tension is more likely to act on the groove-shaped portion than on a smooth flat surface, the separated liquid dispersed in the droplet state is likely to collect, which promotes the flow of the liquid and causes the droplet to drip at the lowest point of the roller 3. The effect of promoting can be obtained.

As shown in FIG. 7, the plurality of roller plates 30 and 40 include the roller plates 30 and 40 at the ends on both sides and the side walls 14 and 15 of the housing so that the laminated whole can be installed without a gap. The spacer 8 can be appropriately interposed between the two. Further, a thrust bearing 9 is interposed between the spacer 8 and the side walls 14 and 15 so that the end roller plates 30 and 40 (the entire rollers 3 and 4) do not cause frictional resistance with the side walls 14 and 15. It can also be configured to be driven. Further, the roller plates 30 and 40 at the ends may be positioned by a stopper that can be screwed in place of the spacer 8 described above.

As described above, by squeezing the work chips with the squeezing device according to the present embodiment, the liquid such as coolant remaining and adhering to the work chips can be separated from the work chips and individually recovered. Further, since the squeezing is caused by the work waste X being bitten into the meshing portion 20 by the two rollers 3 and 4, the work waste X is introduced (pulled in) into the meshing portion 20 and discharged after the meshing portion 20 has passed. (Sending) is guided by the biting operation of the meshing portion 20.

Further, since the second roller 4 arranged on the upper side can move in the vertical direction and the urging means is installed, it is possible to apply a suitable squeezing force while adjusting the distance between the two. Further, since the two rollers 3 and 4 are an aggregate of a plurality of roller plates 30 and 40, the number of laminated rollers 30 and 40 can be easily adjusted, and the roller 3 can be easily adjusted by adjusting the number of rollers 3 and 40. , 4 can be determined. Further, when a part of the roller plates 30 and 40 is worn or damaged, only the part can be replaced. Therefore, maintenance can be performed by partial replacement without replacing the entire rollers 3 and 4, which is very economical.

The embodiments of the present invention are as described above, but the above embodiments are examples of the present invention, and the present invention is not limited to these embodiments. Therefore, it is possible to add or modify other configurations to the above embodiment.

For example, although a configuration is shown in which a supply unit 11 having an inclined surface is provided for supplying the processed waste X to be squeezed, it is also possible to use a supply means such as a belt conveyor instead of the supply unit 11. be. Further, it may be configured to include an intermittent supply device for intermittently supplying the work chips. Further, although the above embodiment typically shows a mode in which the driving force is applied only to the first roller 3, the driving force is also applied to the second roller 4 while synchronizing with the first roller 3. It can be configured.

Further, the gear shape of each of the rollers 3 and 4 has a symmetrical shape on the tooth surfaces on both sides centering on the tooth tip, but these rollers 3 and 4 mesh while rotating only in a predetermined direction. Therefore, the tooth surface shape on the abutting side and the tooth surface shape on the non-contacting side at the time of meshing may be different. In this case, in particular, by increasing the curvature of the tooth surface shape on the non-contacting side of the first roller 3, the arcuate shape can be made more gentle, and the liquid may be changed to promote the flow of the liquid. ..

The machine chips X, X1, X2, and Xi in the figure referred to in the description of the embodiment are formed in a dumpling shape for the purpose of showing that the machine chips are lumpy, but spiral chips due to cutting or the like and spiral chips due to cutting or the like are used. The shape and mass of individual work chips, such as linear chips entwined with these, are irregular.

1 Housing 2 Squeezing part 3 First roller (lower roller)
4 Second roller (upper roller)
5 Solid recovery part 6 Liquid recovery part 7 Motor 8 Spacer 9 Thrust bearing 11 Supply part 12 Recovery space 13 Long holes 14, 15 Side walls 21 Reducer 22 Brackets 30, 40 Roller plates 31, 41 Teeth 32, 42 Tooth grooves 33, 43 Shaft hole 34 Key hole 35 Rotating shaft (central shaft)
36 Keyway 45 Rotating shaft (central shaft)
46 Flat part C boundary line (groove-shaped part)
D1, D2 roller diameter (reference circle diameter)
P1, P2 Pitch angle X, X1, X2, Xi Machining waste

Claims (6)

A machine tool squeezing device for squeezing the machine tool discharged and separating the liquid adhering to the machine tool from the machine tool.
It is provided with a squeezing portion formed by vertically arranging first and second rollers of a gear type that mesh with each other, and a driving portion that applies a driving force to at least one roller of the squeezing portion.
Each roller constituting the squeezing portion is a machined waste squeezing device in which roller plates formed in a gear shape by a plate-shaped member are laminated in the central axial direction. The driving unit applies a driving force only to the first roller, and the second roller is a driven roller rotated by the first roller by meshing with the first roller. The machined waste squeezing device according to claim 1. The processing waste according to claim 1 or 2, wherein the second roller is provided so as to be variable in relative distance from the first roller, and is urged toward the first roller. Squeezing device. The squeezing portion has the first roller arranged at a lower position and the second roller arranged at a higher position, and the reference circle diameter of the first roller is larger than the reference circle diameter of the second roller. The machined waste squeezing device according to any one of claims 1 to 3, wherein the circular pitches are configured to be equal to each other. The machined waste squeezing device according to any one of claims 1 to 4, wherein the tooth groove of the first roller is configured in a gentle arc shape. The machined waste squeezing device according to any one of claims 1 to 5, wherein the first and second rollers are composed of roller plates having the same wall thickness.

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