JP2014172140A - Metal cutting chip compression apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow metal cutting chips to be accumulated in a compression molding chamber without being caught in front of the compression molding chamber without increasing an inner diameter of the compression molding chamber.SOLUTION: Metal cutting chips discharged from a machine tool are to be captured and crushed by a group of crushing blades 32, and are then transferred to a compression molding chamber 12 by using a slope of a transfer plate 71. A forced transfer device 72 extending between the lower surface and the upper surface of the transfer plate 71 prevents the metal cutting chips from being caught in front of the compression molding chamber 12.

Description

The present invention relates to a metal cutting waste compressing apparatus for compressing and solidifying metal cutting waste generated mainly during metal cutting into a predetermined shape.

In the metal cutting process, a large amount of metal cutting waste (hereinafter referred to as chips) is discharged from the machine tool, but the chips are collected for reuse. However, the chips produced by the cutting process have various forms and dimensions such as ribbon, spiral / coil, spiral, crimp / curl, chip, etc. The chips are hardened into a predetermined shape using a compression device as shown in Patent Document 1 below.

JP 2003-31576 A

However, in this type of chip compression apparatus, since the chips have various forms and dimensions, the chips do not smoothly enter the compression molding chamber. It is necessary to force the chip of the form and size into the compression molding chamber, and a large compression power corresponding to a large compression area whose diameter is the inner diameter of the compression molding chamber is required, resulting in an increase in size of the apparatus. There was a problem.

The object of the present invention is to solve this problem, capture and crush the chips discharged from the machine tool immediately after discharging, and collect the chips by reducing the size of the chips. It is an object of the present invention to provide a metal cutting waste compressing device that can obtain a compression-molded product with a small power without having to increase the size.

The technical means of the present invention taken in order to achieve the above object has the following structural features.

[Solution 1]
As described in claim 1, the metal cutting waste compressing apparatus according to the present invention comprises a hopper that receives charged chips, a crushing mechanism that crushes the chips sent from the hopper, and the crushed chips. A transfer mechanism that feeds into the compression cylinder mechanism; and a compression cylinder mechanism that compresses the transferred chips in a compression molding chamber. The crushing mechanism is disposed directly below the hopper, and the transfer mechanism is A compression plate arranged so as to be inclined downward so that the chips discharged from the mechanism are transferred toward the compression cylinder mechanism, and penetrates from the lower surface side to the upper surface side of the transfer plate and passes through the compression cylinder It is comprised so that the transfer mechanism which has the forced feeding apparatus which goes to an apparatus may be provided.

According to the invention of claim 1, a hopper that receives the introduced chips, a crushing mechanism that crushes the chips sent from the hopper, a transfer mechanism that sends the crushed chips into the compression cylinder mechanism, A compression cylinder mechanism for compressing and molding the transferred chips in a compression molding chamber is provided, and the crushing mechanism is disposed immediately below the hopper, and the transfer mechanism is configured to receive the chips discharged from the crushing mechanism. Transfer having a transfer plate disposed so as to be inclined downward so as to be transferred toward the compression cylinder mechanism, and having a forced feeding device penetrating from the lower surface side to the upper surface side of the transfer plate toward the compression cylinder device A mechanism is provided.

As a result, the chips crushed by the crushing mechanism are transferred toward the compression cylinder mechanism along a transfer plate disposed in a downward slope from the crushing mechanism toward the compression cylinder mechanism. On the other hand, since it has a forced feeding device that goes from the lower surface of the transfer plate under the crushing mechanism toward the upper surface side of the transfer plate toward the compression cylinder device, it was transferred before the compression cylinder mechanism. There is no clogging or stagnation of chips. In addition, since the transfer plate is disposed immediately above the driving device that drives the forced feeding device, there is no possibility that chips may enter the driving device. Furthermore, since the crushing mechanism and the drive device are close to each other, the power of the crushing mechanism can be used as a power source of the drive device.

The top view which shows one Example of this invention The front view which removed the panel and which abbreviate | omitted piping which shows one Example of this invention FIG. 2 is a left side view of the embodiment of the present invention with the panel removed and piping and wiring omitted (viewed from P in FIG. 2). The top view which shows the crushing mechanism and transfer mechanism of one Example of this invention The left view which shows the crushing mechanism and transfer mechanism of one Example of this invention Sectional drawing (AA sectional drawing of FIG. 4) of the crushing mechanism and transfer mechanism of one Example of this invention Sectional drawing of the crushing mechanism of one Example of this invention (BB sectional drawing of FIG. 5) Sectional drawing of the crushing mechanism of one Example of this invention (detailed figure of FIG. 6) The enlarged plan view which shows the crushing mechanism of one Example of this invention Sectional drawing which shows the transfer mechanism of one Example of this invention (CC sectional drawing of FIG. 5) The rear view which shows the crushing mechanism and transfer mechanism of one Example of this invention (E view of FIG. 4) The perspective view which shows the crushing mechanism and transfer mechanism of one Example of this invention The perspective view which abbreviate | omitted the outer frame, panel, piping, wiring, and the hydraulic pump motor apparatus of one Example of this invention Explanatory drawing which shows the compression and discharge | emission cycle of the chip of one Example of this invention

Hereinafter, embodiments of the present invention will be described with reference to FIGS.

[Overall configuration of metal cutting waste compaction device]
Embodiments of the present invention will be described below based on the drawings.
As shown in FIGS. 1 to 14, the metal cutting waste compressing apparatus of the present invention includes a hopper 2 that receives chips discharged from a machine tool, and a crushing mechanism that is directly under the hopper 2 to crush and reduce the chips. 3, a transfer mechanism 4 for transferring the crushed and reduced chips to the compression cylinder mechanism 5, a compression cylinder mechanism 5 for compressing and discharging the chips, and a discharge mechanism 8 for discharging the chips out of the apparatus. , A switching cylinder 15 that switches between compression and discharge of chips, a hydraulic pump / motor device 21 that generates the hydraulic pressure of the compression cylinder mechanism 5 and the switching cylinder 15, a hydraulic control valve 17 that controls the hydraulic pressure, The control part 6 which does not perform, the outer frame which supports a structure, and the panel which shields an inside are provided.

[Hopper, outer frame and panel]
As shown in FIGS. 1 to 3, the metal cutting waste compressing apparatus 1 according to the present invention has a substantially cubic shape and is surrounded on the outside by a shielding panel (not shown), and the hydraulic cylinder portion of the compression cylinder mechanism 5 is formed on the upper portion thereof. It has a protruding appearance. In order to support the weight and load of the structure, outer frame members are assembled by welding or the like at twelve matching portions between the shielding panels. Each of the shielding panels is screwed to the opposing outer frame member with a screw or the like, but may be structured such that a part of the shielding panel is hooked on the outer frame member. A reinforcing member for supporting the weight of the compression cylinder mechanism 5 is further added to the outer frame at the top of the apparatus 1. Further, a reinforcing member for supporting the crushing mechanism 3 is added to the middle stage of the apparatus 1. A hopper 2 for temporarily storing chips is formed on the top of the apparatus 1 on a top plate as a shielding panel. The hopper 2 may be provided with an extended hopper member that further increases the opening portion upward.

[Crushing mechanism]
As shown in detail in FIG. 4 to FIG. 9, the crushing mechanism 3 includes two rotary shafts 31, bearings 35 that support the respective shafts, and the power of the crushing motor device 24 through the rotary shaft 31 through a key and the like. A plurality of driven crushing blades 32, a gap regulating member 33 that regulates the interval between adjacent crushing blades 32, and a crushing motor device 24 that is attached to one end of the rotary shaft 31 and drives the crushing blade 32 via a key or the like. A pair of gears 36 attached to the other end of the rotary shaft 31 and transmitting the power of the crushing motor device 24 to the other rotary shaft 31 via a key, and a case 34 to which the bearing 35 and the crushing motor device 24 are attached. It is configured. The case 34 is attached to the reinforcing member of the outer frame as a whole of the crushing mechanism 3 by fastening bolts (not shown).

The crushing blade 32 has a disc shape having a thickness, and a disc outer diameter 38 is provided with a plurality of projections 37 for capturing chips. The crushing blades 32 rotate inward on the rotary shaft 31 via a key or the like, so that the chips stored in the hopper 2 are reliably captured by the outer peripheral projections 37. The trapped chips are sheared and crushed at the corners of the disk outer diameters 38 of the adjacent crushing blades 32 facing each other. As shown in FIG. 9, the opposing crushing blades 32 are separated from each other by δ1 in the axial direction of the rotation shaft 31 and are separated from each other by δ2 in the direction perpendicular to the axis of the rotation shaft 31. It should be noted that δ1 is an appropriate value of 0.2 to 1.0 mm, and δ2 is about 0.5 (gap) to −2.0 (lap) mm.

The crushing blades 32 rotate inward via a key or the like on the rotating shaft 31 to reliably capture chips falling from the hopper 2 immediately above as shown in FIGS. It is sheared and crushed by the combination of δ1 and δ2 on the pair of rotating shafts 31 and dropped onto the transfer mechanism 4 immediately below.

Adjacent crushing blades 32 are set to have a mounting interval by a gap regulating member 33. The outer diameter of the gap regulating member is set so as to ensure the circumscribed circle diameter of the protrusion 37 provided on the opposing crushing blade 32 and the gap δ3. As for (delta) 3, about 1-3 mm smaller than the magnitude | size of a chip is a suitable value. Note that the crushing blade 32 and the gap regulating member 33 may be integrally formed, or all the crushing blades 32 and the gap regulating member 33 on the rotating shaft 31 may be integrally formed.

A pair of gears 36 that are attached to the other end of the rotating shaft 31 and transmit the power of the crushing motor device 24 to the other rotating shaft 31 via a key or the like have a reduction ratio of 1: 1.3 in FIG. By providing a relative rotational speed between the opposing crushing blades 32, the force for crushing the chips can be further reduced. In this case, a reduction ratio of about 1: 1 to 1: 2 is appropriate.

[Transfer mechanism]
As shown in FIG. 2 to FIG. 6 and FIG. 10 to FIG. 12, it is wide so as to receive all the chips falling from the crushing blade 32, and narrow toward the opening provided in the upper part of the compression molding chamber 12. A triangular or pentagonal transfer plate 71 in plan view, bolts for fastening the transfer plate 71 to the case 34, gears and shaft groups that extract power from the gear 36 and transmit it to the forced feed device 72, and the forced feed device 72. It is configured. The transfer plate 71 is attached so as to be inclined downward toward an opening provided in the upper part of the compression molding chamber 12. At the edge of the transfer plate 71, a vertical wall is provided at a predetermined height in a substantially vertical direction to prevent chips from jumping out of the transfer plate 71.

A screw-like forced feeding device 72 passes through the transfer plate 71 from the lower surface side toward the upper surface side. The forced feeding device 72 is driven by the drive gear 74 from the gear 36 of the crushing mechanism 3 through the intermediate gear 73. The driving force is transmitted from the driving gear 74 via the driving shaft 75 to the forced feeding device 72 by a pair of bevel gears 76. The forced feeding device 72 is configured by a right-handed screw having a shaft portion at the center.

The chips stored in the hopper 2 and crushed through the crushing mechanism 3 fall on the transfer plate 71. The chips falling on the transfer plate 71 move toward the opening provided in the upper part of the compression molding chamber 12 by the downward inclination of the transfer plate 71, but a part of the forced feed device penetrates the transfer plate 71. Fall to 72. Chips accumulate at the entrance of the opening provided in the upper part of the compression molding chamber 12, but the driving force of the gear 36 of the crushing mechanism 3 rotates counterclockwise when the right-handed screw of the forced feeding device 72 is viewed from the bevel gear 76 side. Therefore, the chips collected around the forced feeding device 72 are smoothly fed into the compression molding chamber 12 as the screw rotates counterclockwise.

Since the drive gear 74 is disposed near the gear 36 of the crushing mechanism 3, it is easy to transmit the driving force to the forced feeding device 72 via the intermediate gear 73, and below the transfer plate 71 directly below the crushing mechanism 3. Further, since the power transmission unit to the forced feeding device 72 such as the drive shaft 75 and the bevel gear 76 is disposed, there is no possibility that the chips that have been crushed and fallen fall into the power transmission unit.

[Compression cylinder mechanism]
As shown in FIGS. 2 to 3 and FIGS. 13 to 14, the compression cylinder mechanism 5 operates integrally with a hydraulic cylinder located at the top of the apparatus 1 and a hydraulic piston (not shown) in the hydraulic cylinder. A compression plunger 11, a compression molding chamber 12 having an opening into which chips are introduced, a bottom plate 13 capable of switching the presence or absence of a bottom hole 14, and a switching cylinder 15 which is directly below the bottom plate 13 and attached to one side. A reaction force member 18 that receives the compressive force generated by the hydraulic pressure of the hydraulic cylinder, four struts that connect the hydraulic cylinder and the reaction force member 18, and a part of the hydraulic pump / motor device. The hydraulic pressure control valve 17 is configured. The compression plunger 11 and the compression molding chamber 12 are fitted with a slight gap at the top in the initial position so as not to cause misalignment during assembly.

As shown in FIG. 14, (a) is a chip accumulation process before compression, (b) is a chip compression process, (c) is a discharge preparation process in which compression is released and the compression plunger is slightly lifted. (D) shows the discharge process of the compression molded product 23. In the initial state of (a), the chips sent from the transfer mechanism 4 are introduced through an opening provided in the upper part of the compression molding chamber 12 (the right hand side in FIG. 14 is the upper part of the apparatus 1). At this time, the bottom plate 13 capable of switching the presence or absence of the bottom hole 14 is switched to the state without the bottom hole. When the detector (not shown) that detects the accumulation state of the metal cutting scraps 22 (referred to as chips) detects that the compression molding chamber 12 is full of chips, the chip is stopped (b) ) To the compression step. The compression is performed by a compression force generated by the hydraulic pressure of the hydraulic cylinder. Completion of compression molding is performed by stopping the compression operation when a hydraulic pressure detector (not shown) of the hydraulic cylinder senses that a specified hydraulic pressure corresponding to the relief pressure has been reached.

Thereafter, in the discharge preparation step (c), the hydraulic cylinder is once operated in the pressure reducing direction. The end of this operation may be detected by the displacement of the hydraulic cylinder or the numerical value of the hydraulic pressure, or may be depressurized for a certain time by a timer or the like. During the step (c), the bottom plate 13 is switched to the state with the bottom hole 14. Next, as shown in the discharging step (d), the hydraulic cylinder is controlled in the compression direction and displaced until the compression molded product 23 is discharged from the bottom hole 14. The discharged compression molded product 23 is stored in the locking member 52 of the discharge mechanism 8 through the slider 25 shown in FIG. This completes one cycle and returns to the initial state of (a). The pressurization and depressurization of a series of hydraulic cylinders and the switching of the presence or absence of a bottom hole in the bottom plate 13 of the switching cylinder 15 are performed by controlling the hydraulic pressure generated by the hydraulic pump / motor device 21 with the hydraulic pressure control valve 17. Is called. The above is a series of chip accumulation, compression, discharge preparation / discharge cycle.

[Discharge mechanism]
As shown in FIGS. 2 to 13, the discharge mechanism 8 includes a rack gear 41, a pinion gear 42, a coupling member 54 that is arranged coaxially with the pinion gear 42, drives the arm 51, an arm 51, and a tip of the arm 51. The engaging member 52 is positioned and receives the compression molded product 23 discharged from the compression cylinder mechanism 5, and the auxiliary arm 53 is disposed substantially parallel to the arm 51. The arm 51, the locking member 52, the locking member 52, the auxiliary arm 53, and the portions extending from the auxiliary arm 53 and the reaction force member 18 each have a separate rotation axis parallel to the rotation axis of the connecting member 54. Only movement around the rotation axis is allowed. That is, from the rotation axis center of the connecting member 54, the rotation axis center of the arm 51 and the locking member, the extension member of the locking member 51 and the rotation axis center of the auxiliary arm 53, the auxiliary arm 53 and the reaction force member 18. A substantially parallel link having four sections is formed by the center of the rotation axis of the extended member.

With the transition from the discharge step (d) to the chip accumulation step (a), the switching cylinder 15 is operated, and the bottom plate 13 moves to the left in FIG. As a result, the pinion gear 42 meshed with the rack gear 41 rotates counterclockwise, and the connecting member 54 disposed on the same axis as the pinion gear 42 also rotates counterclockwise, causing the arm 51 to rotate counterclockwise. . Since the arm 51 constitutes a four-bar link by the four rotation shafts, the chip compression molded product 23 discharged to the locking member 52 is rotated counterclockwise with the substantially discharged posture. An arc is drawn and transferred to the upper left part of FIG. When the arm 51 reaches the rotation end, the four-member link is configured so that the locking member 52 is gently lowered to the left in FIG. 13, so that the compression molded product has the locking member along this inclination. 52 is discharged from the discharge port to the outside of the apparatus 1 via a discharge plate (not shown).

After the compression step (b) is completed and the compression plunger 11 is once moved upward of the apparatus 1 in the discharge preparation step (c), the switching cylinder 15 is activated and the bottom plate 13 immediately below the compression molding chamber 12 is operated. To the position where the bottom hole 14 is located. At this time, the rack gear 41 moves to the right in FIG. The pinion gear 42 meshed with the rack gear 41 rotates in the clockwise direction, and the arm 51 is rotated in the clockwise direction via the connecting member 54 arranged on the same axis as the pinion gear 42. Since the arm 51, the locking member 52, and the auxiliary arm 53 form a substantially parallel link with four nodes, the rotary end of the arm 51 is in a posture where the compression molded product 12 is discharged in the chip accumulation process of (a). The compressed molded product 23 discharged from the slider 25 is returned to its original position.

The above-described embodiments are not limited to them as examples of the present invention, but are illustrated for the purpose of explanation. Addition is possible.

DESCRIPTION OF SYMBOLS 1 Metal cutting waste compressor 2 Hopper 3 Crushing mechanism 4 Transfer mechanism 5 Compression cylinder mechanism 6 Control part 8 Discharge mechanism 11 Compression plunger 12 Compression molding chamber 13 Bottom plate 14 Bottom hole 15 Switching cylinder 17 Hydraulic control valve 18 Reaction force member 21 Hydraulic pump motor device 22 Metal cutting waste (chip)
23 Compression molded product 24 Crushing motor device 25 Slider 31 Rotating shaft 32 Crushing blade 33 Gap regulating member 34 Case 35 Bearing 36 Gear 37 Protrusion 38 Disc outer diameter (protrusion root diameter)
41 Rack gear 42 Pinion gear 51 Arm 52 Locking member 53 Auxiliary arm 54 Connecting member 71 Transfer plate 72 Forced feeding device 73 Intermediate gear 74 Drive gear 75 Drive shaft 76 Bevel gear

The present invention relates to a metal cutting waste compressing apparatus for compressing and solidifying metal cutting waste generated mainly during metal cutting into a predetermined shape.

In the metal cutting process, a large amount of metal cutting waste (hereinafter referred to as chips) is discharged from the machine tool, but the chips are collected for reuse. However, the chips produced by the cutting process have various forms and dimensions such as ribbon, spiral / coil, spiral, crimp / curl, chip, etc. The chips are hardened into a predetermined shape using a compression device as shown in Patent Document 1 below.

JP 2003-31576 A

However, in this type of chip compression apparatus, since the chips have various forms and dimensions, the chips do not smoothly enter the compression molding chamber. It is necessary to force the chip of the form and size into the compression molding chamber, and a large compression power corresponding to a large compression area whose diameter is the inner diameter of the compression molding chamber is required, resulting in an increase in size of the apparatus. There was a problem.

The object of the present invention is to solve this problem, capture and crush the chips discharged from the machine tool immediately after discharging, and collect the chips by reducing the size of the chips. It is an object of the present invention to provide a metal cutting waste compressing device that can obtain a compression-molded product with a small power without having to increase the size.

The technical means of the present invention taken in order to achieve the above object has the following structural features.

[Solution 1]
As described in claim 1, the metal cutting waste compressing apparatus according to the present invention comprises a hopper that receives charged chips, a crushing mechanism that crushes the chips sent from the hopper, and the crushed chips. A transfer mechanism that feeds into the compression cylinder mechanism; and a compression cylinder mechanism that compresses the transferred chips in a compression molding chamber. The crushing mechanism is disposed directly below the hopper, and the transfer mechanism is A compression plate arranged so as to be inclined downward so that the chips discharged from the mechanism are transferred toward the compression cylinder mechanism, and penetrates from the lower surface side to the upper surface side of the transfer plate and passes through the compression cylinder It is configured to include a transfer mechanism having an auxiliary feeding device driven by power for driving the crushing mechanism toward the device.

According to the invention of claim 1, a hopper that receives the introduced chips, a crushing mechanism that crushes the chips sent from the hopper, a transfer mechanism that sends the crushed chips into the compression cylinder mechanism, A compression cylinder mechanism for compressing and molding the transferred chips in a compression molding chamber is provided, and the crushing mechanism is disposed immediately below the hopper, and the transfer mechanism is configured to receive the chips discharged from the crushing mechanism. A transfer plate arranged so as to be inclined downward so as to be transferred toward the compression cylinder mechanism, and drives the crushing mechanism penetrating from the lower surface side to the upper surface side of the transfer plate toward the compression cylinder device A transfer mechanism having an auxiliary feeding device driven by power is provided.

As a result, the chips crushed by the crushing mechanism are transferred toward the compression cylinder mechanism along a transfer plate disposed in a downward slope from the crushing mechanism toward the compression cylinder mechanism. On the other hand, since it has an auxiliary feeding device driven by power that drives the crushing mechanism toward the compression cylinder mechanism penetrating from the lower surface of the transfer plate below the crushing mechanism toward the upper surface side of the transfer plate, The transferred chips are not clogged or stagnated before the compression cylinder mechanism. Moreover, since the said transfer board is arrange | positioned just above the drive device which drives the said forced feeding apparatus, there is no possibility that a chip may bite into the said drive device. Furthermore, since the crushing mechanism and the drive device are close to each other, the power of the crushing mechanism can be used as a power source of the drive device.

The top view which shows one Example of this invention The front view which removed the panel and which abbreviate | omitted piping which shows one Example of this invention FIG. 2 is a left side view of the embodiment of the present invention with the panel removed and piping and wiring omitted (viewed from P in FIG. 2). The top view which shows the crushing mechanism and transfer mechanism of one Example of this invention The left view which shows the crushing mechanism and transfer mechanism of one Example of this invention Sectional drawing (AA sectional drawing of FIG. 4) of the crushing mechanism and transfer mechanism of one Example of this invention Sectional drawing of the crushing mechanism of one Example of this invention (BB sectional drawing of FIG. 5) Sectional drawing of the crushing mechanism of one Example of this invention (detailed figure of FIG. 6) The enlarged plan view which shows the crushing mechanism of one Example of this invention Sectional drawing which shows the transfer mechanism of one Example of this invention (CC sectional drawing of FIG. 5) The rear view which shows the crushing mechanism and transfer mechanism of one Example of this invention (E view of FIG. 4) The perspective view which shows the crushing mechanism and transfer mechanism of one Example of this invention The perspective view which abbreviate | omitted the outer frame, panel, piping, wiring, and the hydraulic pump motor apparatus of one Example of this invention Explanatory drawing which shows the compression and discharge | emission cycle of the chip of one Example of this invention

Hereinafter, embodiments of the present invention will be described with reference to FIGS.

[Overall configuration of metal cutting waste compaction device]
Embodiments of the present invention will be described below based on the drawings. As shown in FIGS. 1 to 14, the metal cutting waste compressing apparatus of the present invention includes a hopper 2 that receives chips discharged from a machine tool, and a crushing mechanism that is directly under the hopper 2 to crush and reduce the chips. 3, a transfer mechanism 4 for transferring the crushed and reduced chips to the compression cylinder mechanism 5, a compression cylinder mechanism 5 for compressing and discharging the chips, and a discharge mechanism 8 for discharging the chips out of the apparatus. , A switching cylinder 15 that switches between compression and discharge of chips, a hydraulic pump / motor device 21 that generates the hydraulic pressure of the compression cylinder mechanism 5 and the switching cylinder 15, a hydraulic control valve 17 that controls the hydraulic pressure, The control part 6 which does not perform, the outer frame which supports a structure, and the panel which shields an inside are provided.

[Hopper, outer frame and panel]
As shown in FIGS. 1 to 3, the metal cutting waste compressing apparatus 1 according to the present invention has a substantially cubic shape and is surrounded on the outside by a shielding panel (not shown), and the hydraulic cylinder portion of the compression cylinder mechanism 5 is formed on the upper portion thereof. It has a protruding appearance. In order to support the weight and load of the structure, outer frame members are assembled by welding or the like at twelve matching portions between the shielding panels. Each of the shielding panels is screwed to the opposing outer frame member with a screw or the like, but may be structured such that a part of the shielding panel is hooked on the outer frame member. A reinforcing member for supporting the weight of the compression cylinder mechanism 5 is further added to the outer frame at the top of the apparatus 1. Further, a reinforcing member for supporting the crushing mechanism 3 is added to the middle stage of the apparatus 1. A hopper 2 for temporarily storing chips is formed on the top of the apparatus 1 on a top plate as a shielding panel. The hopper 2 may be provided with an extended hopper member that further increases the opening portion upward.

[Crushing mechanism]
As shown in detail in FIG. 4 to FIG. 9, the crushing mechanism 3 includes two rotary shafts 31, bearings 35 that support the respective shafts, and the power of the crushing motor device 24 through the rotary shaft 31 through a key and the like. A plurality of driven crushing blades 32, a gap regulating member 33 that regulates the interval between adjacent crushing blades 32, and a crushing motor device 24 that is attached to one end of the rotary shaft 31 and drives the crushing blade 32 via a key or the like. A pair of gears 36 attached to the other end of the rotary shaft 31 and transmitting the power of the crushing motor device 24 to the other rotary shaft 31 via a key, and a case 34 to which the bearing 35 and the crushing motor device 24 are attached. It is configured. The case 34 is attached to the reinforcing member of the outer frame as a whole of the crushing mechanism 3 by fastening bolts (not shown).

The crushing blade 32 has a disc shape having a thickness, and a disc outer diameter 38 is provided with a plurality of projections 37 for capturing chips. The crushing blades 32 rotate inward on the rotary shaft 31 via a key or the like, so that the chips stored in the hopper 2 are reliably captured by the outer peripheral projections 37. The trapped chips are sheared and crushed at the corners of the disk outer diameters 38 of the adjacent crushing blades 32 facing each other. As shown in FIG. 9, the opposing crushing blades 32 are separated from each other by δ1 in the axial direction of the rotation shaft 31 and are separated from each other by δ2 in the direction perpendicular to the axis of the rotation shaft 31. It should be noted that δ1 is an appropriate value of 0.2 to 1.0 mm, and δ2 is about 0.5 (gap) to −2.0 (lap) mm.

The crushing blades 32 rotate inward via a key or the like on the rotating shaft 31 to reliably capture chips falling from the hopper 2 immediately above as shown in FIGS. It is sheared and crushed by the combination of δ1 and δ2 on the pair of rotating shafts 31 and dropped onto the transfer mechanism 4 immediately below.

Adjacent crushing blades 32 are set to have a mounting interval by a gap regulating member 33. The outer diameter of the gap regulating member is set so as to ensure the circumscribed circle diameter of the protrusion 37 provided on the opposing crushing blade 32 and the gap δ3. As for (delta) 3, about 1-3 mm smaller than the magnitude | size of a chip is a suitable value. Note that the crushing blade 32 and the gap regulating member 33 may be integrally formed, or all the crushing blades 32 and the gap regulating member 33 on the rotating shaft 31 may be integrally formed.

A pair of gears 36 that are attached to the other end of the rotating shaft 31 and transmit the power of the crushing motor device 24 to the other rotating shaft 31 via a key or the like have a reduction ratio of 1: 1.3 in FIG. By providing a relative rotational speed between the opposing crushing blades 32, the force for crushing the chips can be further reduced. In this case, a reduction ratio of about 1: 1 to 1: 2 is appropriate.

[Transfer mechanism]
As shown in FIG. 2 to FIG. 6 and FIG. 10 to FIG. 12, it is wide so as to receive all the chips falling from the crushing blade 32, and narrow toward the opening provided in the upper part of the compression molding chamber 12. the transfer plate 71 of a triangular or pentagonal shape in plan view, and bolts tightened to the casing 34 of the transfer plate 71, a gear for transmitting the auxiliary feeding device 72 from the gear 36 removed power, and the shaft groups, in the auxiliary feed apparatus 72 It is configured. The transfer plate 71 is attached so as to be inclined downward toward an opening provided in the upper part of the compression molding chamber 12. At the edge of the transfer plate 71, a vertical wall is provided at a predetermined height in a substantially vertical direction to prevent chips from jumping out of the transfer plate 71.

A screw-shaped auxiliary feeding device 72 passes through the transfer plate 71 from the lower surface side toward the upper surface side. The auxiliary feeding device 72 is driven by the drive gear 74 from the gear 36 of the crushing mechanism 3 through the intermediate gear 73. The driving force is transmitted from the driving gear 74 via the driving shaft 75 to the auxiliary feeding device 72 by a pair of bevel gears 76. The auxiliary feeding device 72 is composed of a right-handed screw having a shaft portion at the center.

The chips stored in the hopper 2 and crushed through the crushing mechanism 3 fall on the transfer plate 71. The chip that has fallen on the transfer plate 71 moves toward the opening provided in the upper portion of the compression molding chamber 12 by the downward inclination of the transfer plate 71, but a part of the auxiliary feed device that penetrates the transfer plate 71. Fall to 72. Chips accumulate at the entrance of the opening provided in the upper portion of the compression molding chamber 12, but the driving force of the gear 36 of the crushing mechanism 3 rotates the counterclockwise screw of the auxiliary feeding device 72 as viewed from the bevel gear 76 side. Therefore, the chips collected around the auxiliary feeding device 72 smoothly feed the chips into the compression molding chamber 12 as the screw rotates counterclockwise.

Since the drive gear 74 is disposed near the gear 36 of the crushing mechanism 3, it is easy to transmit the driving force to the auxiliary feeding device 72 through the intermediate gear 73, and below the transfer plate 71 directly below the crushing mechanism 3. Further, since the power transmission unit to the auxiliary feeding device 72 such as the drive shaft 75 and the bevel gear 76 is arranged, there is no fear that the smashed and fallen chips bite into the power transmission unit.

[Compression cylinder mechanism]
As shown in FIGS. 2 to 3 and FIGS. 13 to 14, the compression cylinder mechanism 5 operates integrally with a hydraulic cylinder located at the top of the apparatus 1 and a hydraulic piston (not shown) in the hydraulic cylinder. A compression plunger 11, a compression molding chamber 12 having an opening into which chips are introduced, a bottom plate 13 capable of switching the presence or absence of a bottom hole 14, and a switching cylinder 15 which is directly below the bottom plate 13 and attached to one side. A reaction force member 18 that receives the compressive force generated by the hydraulic pressure of the hydraulic cylinder, four struts that connect the hydraulic cylinder and the reaction force member 18, and a part of the hydraulic pump / motor device. The hydraulic pressure control valve 17 is configured. The compression plunger 11 and the compression molding chamber 12 are fitted with a slight gap at the top in the initial position so as not to cause misalignment during assembly.

As shown in FIG. 14, (a) is a chip accumulation process before compression, (b) is a chip compression process, (c) is a discharge preparation process in which compression is released and the compression plunger is slightly lifted. (D) shows the discharge process of the compression molded product 23. In the initial state of (a), the chips sent from the transfer mechanism 4 are introduced through an opening provided in the upper part of the compression molding chamber 12 (the right hand side in FIG. 14 is the upper part of the apparatus 1). At this time, the bottom plate 13 capable of switching the presence or absence of the bottom hole 14 is switched to the state without the bottom hole. When the detector (not shown) that detects the accumulation state of the metal cutting scraps 22 (referred to as chips) detects that the compression molding chamber 12 is full of chips, the chip is stopped (b) ) To the compression step. The compression is performed by a compression force generated by the hydraulic pressure of the hydraulic cylinder. Completion of compression molding is performed by stopping the compression operation when a hydraulic pressure detector (not shown) of the hydraulic cylinder senses that a specified hydraulic pressure corresponding to the relief pressure has been reached.

Thereafter, in the discharge preparation step (c), the hydraulic cylinder is once operated in the pressure reducing direction. The end of this operation may be detected by the displacement of the hydraulic cylinder or the numerical value of the hydraulic pressure, or may be depressurized for a certain time by a timer or the like. During the step (c), the bottom plate 13 is switched to the state with the bottom hole 14. Next, as shown in the discharging step (d), the hydraulic cylinder is controlled in the compression direction and displaced until the compression molded product 23 is discharged from the bottom hole 14. The discharged compression molded product 23 is stored in the locking member 52 of the discharge mechanism 8 through the slider 25 shown in FIG. This completes one cycle and returns to the initial state of (a). The pressurization and depressurization of a series of hydraulic cylinders and the switching of the presence or absence of a bottom hole in the bottom plate 13 of the switching cylinder 15 are performed by controlling the hydraulic pressure generated by the hydraulic pump / motor device 21 with the hydraulic pressure control valve 17. Is called. The above is a series of chip accumulation, compression, discharge preparation / discharge cycle.

[Discharge mechanism]
As shown in FIGS. 2 to 13, the discharge mechanism 8 includes a rack gear 41, a pinion gear 42, a coupling member 54 that is arranged coaxially with the pinion gear 42, drives the arm 51, an arm 51, and a tip of the arm 51. The engaging member 52 is positioned and receives the compression molded product 23 discharged from the compression cylinder mechanism 5, and the auxiliary arm 53 is disposed substantially parallel to the arm 51. The arm 51, the locking member 52, the locking member 52, the auxiliary arm 53, and the portions extending from the auxiliary arm 53 and the reaction force member 18 each have a separate rotation axis parallel to the rotation axis of the connecting member 54. Only movement around the rotation axis is allowed. That is, from the rotation axis center of the connecting member 54, the rotation axis center of the arm 51 and the locking member, the extension member of the locking member 51 and the rotation axis center of the auxiliary arm 53, the auxiliary arm 53 and the reaction force member 18. A substantially parallel link having four sections is formed by the center of the rotation axis of the extended member.

With the transition from the discharge step (d) to the chip accumulation step (a), the switching cylinder 15 is operated, and the bottom plate 13 moves to the left in FIG. As a result, the pinion gear 42 meshed with the rack gear 41 rotates counterclockwise, and the connecting member 54 disposed on the same axis as the pinion gear 42 also rotates counterclockwise, causing the arm 51 to rotate counterclockwise. . Since the arm 51 constitutes a four-bar link by the four rotation shafts, the chip compression molded product 23 discharged to the locking member 52 is rotated counterclockwise with the substantially discharged posture. An arc is drawn and transferred to the upper left part of FIG. When the arm 51 reaches the rotation end, the four-member link is configured so that the locking member 52 is gently lowered to the left in FIG. 13, so that the compression molded product has the locking member along this inclination. 52 is discharged from the discharge port to the outside of the apparatus 1 via a discharge plate (not shown).

After the compression step (b) is completed and the compression plunger 11 is once moved upward of the apparatus 1 in the discharge preparation step (c), the switching cylinder 15 is activated and the bottom plate 13 immediately below the compression molding chamber 12 is operated. To the position where the bottom hole 14 is located. At this time, the rack gear 41 moves to the right in FIG. The pinion gear 42 meshed with the rack gear 41 rotates in the clockwise direction, and the arm 51 is rotated in the clockwise direction via the connecting member 54 arranged on the same axis as the pinion gear 42. Since the arm 51, the locking member 52, and the auxiliary arm 53 form a substantially parallel link with four nodes, the rotary end of the arm 51 is in a posture where the compression molded product 12 is discharged in the chip accumulation process of (a). The compressed molded product 23 discharged from the slider 25 is returned to its original position.

The above-described embodiments are not limited to them as examples of the present invention, but are illustrated for the purpose of explanation. Addition is possible.

DESCRIPTION OF SYMBOLS 1 Metal cutting waste compressor 2 Hopper 3 Crushing mechanism 4 Transfer mechanism 5 Compression cylinder mechanism 6 Control part 8 Discharge mechanism 11 Compression plunger 12 Compression molding chamber 13 Bottom plate 14 Bottom hole 15 Switching cylinder 17 Hydraulic control valve 18 Reaction force member 21 Hydraulic pump motor device 22 Metal cutting waste (chip)
23 Compression Molded Product 24 Crushing Motor Device 25 Slider 31 Rotating Shaft 32 Crushing Blade 33 Gap Restricting Member 34 Case 35 Bearing 36 Gear 37 Projection 38 Disc Outer Diameter (Dental Bottom Diameter of Projection)
41 Rack Gear 42 Pinion Gear 51 Arm 52 Locking Member 53 Auxiliary Arm 54 Connecting Member 71 Transfer Plate 72 Forced Feed Device 73 Intermediate Gear 74 Drive Gear 75 Drive Shaft 76 Bevel Gear

Claims (1)

A hopper that receives the charged metal cutting waste, a crushing mechanism that crushes the metal cutting waste sent from the hopper, a transfer mechanism that feeds the crushed metal cutting waste into the compression cylinder mechanism, and a transferred metal cutting waste. A metal cutting waste compression apparatus having a compression cylinder mechanism for compression molding in a compression molding chamber, wherein the crushing mechanism is disposed immediately below the hopper, and the transfer mechanism is a metal cutting waste discharged from the crushing mechanism. Including a transfer plate arranged so as to be inclined downward so as to be transferred toward the compression cylinder mechanism, and a forcible feeding device penetrating from the lower surface side to the upper surface side of the transfer plate toward the compression cylinder device A metal cutting waste compressing device comprising:

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