Metal chip compression device

Abstract

In solidifying metal cutting chips that require a large compressive force, a large compressive force is obtained without using a large hydraulic cylinder or a large hydraulic system. 【Solution means】The upper part of the compression plunger is provided with a V-shaped link and a valley-shaped link symmetric with respect to the horizontal plane, and a coupling member that slidably couples the link ends of both links is provided. It is composed of a spiral groove shaft having a spiral groove on one side and an opposite-handed spiral groove on the other side while passing through this coupling member. The V-shaped link is connected to the upper support member, and the valley-shaped link is connected to the compression plunger. Further, a pair of bevel gears is provided in the vicinity of the confluence of both spiral groove shafts, and by transmitting power with the bevel gears, a compressive force greater than the input is obtained when the compression is completed in the vertically long diamond shape, and a quick displacement of the compression plunger is obtained at the start of the horizontally long compression.

Description

Technical Field

[0001] The present invention mainly relates to a metal chip compression device for compressing metal chips generated during metal cutting and solidifying them into a predetermined shape.

Background Art

[0002] In the metal cutting process, a large amount of metal chips (hereinafter referred to as chips) are discharged from the machine tool, and these chips are collected for reuse. However, the chips generated by cutting have various forms and dimensions, such as ribbon-like, spiral / coil-like, spiral-like, crumpled / curled-like, chip-like, etc. As they are, they are cumbersome to handle, so these chips are solidified into a predetermined shape using a compression device as shown in Patent Document 1 below.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in this type of chip compression device, since the chips have various forms and dimensions, the chips do not smoothly enter the compression molding chamber. Therefore, the inner diameter of the compression molding chamber has to be increased, and chips of various forms and dimensions have to be forcibly pushed into the compression molding chamber. As a result, a large compression power corresponding to a large compression area with the inner diameter of the compression molding chamber as the diameter is required, and there is a problem that the device becomes large-sized.

[0005] An object of the present invention is to provide a metal chip compression device that can solve these problems and obtain a compression molded product with a small compression power.

Means for Solving the Problems

[0006] (Solution 1) As described in claim 1, the metal cutting chip compressing device of the present invention includes a hopper for receiving the input metal cutting chips, a crushing mechanism for crushing the metal cutting chips sent from the hopper, a transfer mechanism for sending the crushed metal cutting chips into a compression molding chamber, and a compression mechanism for compression molding the transferred metal cutting chips in the compression molding chamber. In the metal cutting chip compressing device, the compression mechanism includes a pair of links forming an eight-shaped pattern upward, and a pair of links forming an inverted eight-shaped pattern symmetrically arranged with respect to the horizontal plane below the pair of links. Two points at the peaks of the pair of links forming the eight-shaped pattern are Slide in the rotational direction Possibly coupled to the support member of the compression mechanism, and the vertices at the bottom of the pair of links forming the inverted eight-shaped pattern are Slide in the rotational direction Possibly coupled to the member for performing compression molding of the metal cutting chips, and a pair of members connecting the points on the skirt side of the pair of links forming the eight-shaped pattern and the points on the top side of the pair of links forming the inverted eight-shaped pattern facing this each other Are provided, and the a pair of The member has a right-twisted spiral groove hole on one side and a left-twisted spiral groove hole on the other side inside, and a spiral groove shaft that penetrates both spiral groove holes and is screwed with both spiral groove holes on the outer periphery. By rotationally driving the spiral groove shaft, it acts in the direction of compressing the metal cutting chips, and by reversely rotationally driving, it acts in the direction of releasing the compression operation Place the mechanism between the pair of members It is configured to be provided.

[0007] (Solution 2 ) As described in claim 2 In the metal cutting chip compressing device described in claim 1 , the spiral groove holes inside the pair of members connecting the points on the skirt side of the pair of links forming the eight-shaped pattern and the points on the top side of the pair of links forming the inverted eight-shaped pattern facing this are constituted by a ball circulation type ball screw, and the spiral groove shaft on the other side forms a spiral groove shaft with which the ball screw is screwed.

[0008] (Solution 3 ) The metal cutting chip compressing device of the present invention is as claimed in claim 3 As described in, a pair of bevel gears for driving the spiral groove shaft is provided at the confluence of the right-twisted spiral groove portion and the left-twisted spiral groove portion. One of the bevel gears is fitted near the confluence of the right-twisted spiral groove portion and the left-twisted spiral groove portion of the spiral groove shaft, and the other bevel gear drives one bevel gear The drive shaft of the other bevel gear while configuring so that the axis center line of is orthogonal to the axis center line of the spiral groove shaft, The drive shaft of the other bevel gear is configured to penetrate the support member of the compression mechanism that can be connected to the apex of the peak of the pair of links forming the figure-eight Slide in the rotational direction possibly.

[0009] (Solution means 4 ) The metal cutting chip compressing device of the present invention is as claimed in claim 4 As described in, in the metal cutting chip compressing device described in claim 3 , the inner circumference of the other The drive shaft of the bevel gear configured so as to be fitted to the drive shaft so that the other bevel gear can slide in the axial center line direction of the drive shaft.

[0010] (Solution means 5 ) The metal cutting chip compressing device of the present invention is as claimed in claim 5 As described in, in the metal cutting chip compressing device described in claim 4 , the portion where the other bevel gear is slidably fitted in the The drive shaft of the relevant bevel gear axial center line direction is configured to be formed by a ball spline. [Effect of the Invention]

[0011] According to the invention described in claim 1, there is provided a metal chip compression device comprising a hopper for receiving the input metal chips, a crushing mechanism for crushing the metal chips sent from the hopper, a transfer mechanism for feeding the crushed metal chips into a compression molding chamber, and a compression mechanism for compression molding the transferred metal chips in the compression molding chamber. The compression mechanism includes a pair of links forming an eight-shaped pattern upward, and a pair of links forming an inverted eight-shaped pattern symmetrically disposed with respect to the horizontal plane below the pair of links. Two points at the peaks of the pair of links forming the eight-shaped pattern are Slide in the rotational direction coupled to the support member of the compression mechanism in a possible manner, and two points at the bottoms of the pair of links forming the inverted eight-shaped pattern are Slide in the rotational direction coupled to the member for performing compression molding of the metal chips in a possible manner. In addition, a pair of members for coupling a point on the skirt side of the pair of links forming the eight-shaped pattern and a point on the top side of the pair of links forming the inverted eight-shaped pattern each other opposite thereto are provided. The a pair of member has a right-twisted spiral groove hole on one side and a left-twisted spiral groove hole on the other side inside, and a spiral groove shaft that penetrates both spiral groove holes and engages with both spiral groove holes on the outer periphery. By rotationally driving the spiral groove shaft, it acts in a direction to compress the metal chips, and by reversely rotating the drive Place the mechanism between the pair of members it is configured to include an action in a direction to release the compression operation.

[0012] Thus, by rotationally driving the spiral groove shaft in one direction, the distance between the pair of members coupling a point on the skirt side of the pair of links forming the eight-shaped pattern and a point on the top side of the pair of links forming the inverted eight-shaped pattern opposite thereto is reduced, the mountain slope of the pair of links forming the eight-shaped pattern upward becomes steeper, and the bottom slope of the pair of links forming the inverted eight-shaped pattern symmetrically disposed with respect to the horizontal plane below the pair of links becomes steeper, thereby acting in a direction to compress the metal chips. By rotationally driving the spiral groove shaft in the reverse direction, the distance between the pair of members coupling a point on the skirt side of the pair of links forming the eight-shaped pattern and a point on the top side of the pair of links forming the inverted eight-shaped pattern opposite thereto each other is increased, the mountain slope of the pair of links forming the eight-shaped pattern upward becomes less steep, and the bottom slope of the pair of links forming the inverted eight-shaped pattern symmetrically disposed with respect to the horizontal plane below the pair of links becomes less steep, thereby acting in a direction to release the compression operation. each otherThe distance between a pair of members to be joined increases, the peak slope of a pair of links forming an eight - shape upward becomes gentle, and the valley slope of a pair of links forming an inverted eight - shape symmetrically arranged with respect to the horizontal plane below the pair of links becomes gentle, thereby obtaining an effect that an apparatus can be obtained which acts in a direction to release the compression operation of metal cutting chips.

[0013] Also, by rotationally driving the spiral groove shaft in one direction, the peak slope of a pair of links forming an eight - shape upward becomes stronger, and the valley slope of a pair of links forming an inverted eight - shape symmetrically arranged with respect to the horizontal plane below the pair of links becomes stronger. Thus, a force (F1) acting in a direction to compress metal cutting chips, and a force (F2) acting in the horizontal direction between a pair of members connecting a point on the skirt side of a pair of links forming the eight - shape and a point on the top side of a pair of links forming the inverted eight - shape opposite thereto, the ratio (F1 / F2) is equal to the tangent of the angle (Θ) formed by a pair of links forming an eight - shape upward with the horizontal plane.

[0014] Therefore, at the end stage of the operation of compressing chips, the peak slope of a pair of links forming an eight - shape upward is strong (Θ is large). Thus, according to the force (F2) acting in the horizontal direction of a pair of members connecting a point on the skirt side of a pair of links forming the eight - shape and a point on the top side of a pair of links forming the inverted eight - shape opposite thereto, a force (F1) acting in a direction to compress even larger metal cutting chips can be obtained. Therefore, a large compression force can be generated with a small power, and miniaturization of the apparatus can be achieved.

[0015] Furthermore, focusing on the displacement, at the initial stage of the operation of compressing chips, the peak slope of a pair of links forming an eight - shape upward is gentle (Θ is small). Thus, a state can be obtained in which the ratio (Δ1 / Δ2) of the displacement (Δ1) acting in a direction to compress metal cutting chips to the horizontal displacement (Δ2) of a pair of members connecting a point on the skirt side of a pair of links forming the eight - shape and a point on the top side of a pair of links forming the inverted eight - shape opposite thereto is large.

[0016] Therefore, it includes a pair of links forming a figure-eight shape upward, and a pair of links forming an inverted figure-eight shape arranged symmetrically with respect to the horizontal plane below the pair of links. The vertices of the peaks of the pair of links forming the figure-eight shape are connected to the support member of the compression mechanism Slide in the rotational direction in a possible manner, and the vertices of the bottoms of the pair of links forming the inverted figure-eight shape are connected to the member that performs the compression molding of metal cutting chips Slide in the rotational direction in a possible manner. In addition, a member that connects the points on the skirt side of the pair of links forming the figure-eight shape and the points on the top side of the pair of links forming the inverted figure-eight shape opposite thereto each other is provided. The a pair of member is provided with a right-twisted spiral groove hole on one side and a left-twisted spiral groove hole on the other side inside. It penetrates both spiral groove holes and is provided with a spiral groove shaft that engages with both spiral groove holes on the outer periphery. By rotating the spiral groove shaft in one direction, it acts in the direction of compressing metal cutting chips, and by rotating it in the reverse direction, it acts in the direction of releasing the compression operation. By being configured to include a driving device, when the required compression force at the initial stage of chip compression is relatively small, a faster compression displacement can be obtained, and at the same time, a greater compression force can be obtained at the end of compression. That is, the effect can be obtained

[0017] Also Thus, in addition to the force multiplication effect and large displacement ratio obtained by the metal cutting chip compression device according to claim 1, between a pair of links forming a figure-eight shape upward and a pair of links forming an inverted figure-eight shape arranged symmetrically with respect to the horizontal plane below the pair of links such an invention a large space can be provided, so that a gear mechanism or the like for power transmission can be installed in this space, which has the effect

[0018] According to the invention according to claim 2 thereby, according to claim 1In addition to the metal cutting chip compression device described in [reference], the spiral groove holes inside the pair of members that connect the points on the skirt side of the pair of links forming an eight shape and the points on the top side of the pair of links forming the reverse eight shape facing this are constituted by a ball circulation type ball screw, and the spiral groove shaft on the other side forms a spiral groove shaft into which the ball screw is screwed.

[0019] As a result, the frictional force at the screwed portion can be significantly reduced, and thus the effect of being able to transmit the force for compressing the chips without waste even with the same rotational force is achieved.

[0020] Claim 3 According to the invention according to [claim], a pair of bevel gears for driving the spiral groove shaft are provided at the confluence of the right-twisted spiral groove portion and the left-twisted spiral groove portion, one bevel gear is fitted near the confluence of the right-twisted spiral groove portion and the left-twisted spiral groove portion of the spiral groove shaft, and the other bevel gear drives one bevel gear The drive shaft of the other bevel gear while configuring so that the axis center line of [the other bevel gear] is orthogonal to the axis center line of the spiral groove shaft, The drive shaft of the other bevel gear and [the other bevel gear] is configured to penetrate the support member of the compression mechanism that connectably joins the vertices of the peaks of the pair of links forming the eight shape. Slide in the rotational direction

[0021] As a result, while configuring so that the axis center line of the drive shaft of the other bevel gear that drives one bevel gear is orthogonal to the axis center line of the spiral groove shaft with respect to one bevel gear fitted to the axis of the confluence of the right-twisted spiral groove portion and the left-twisted spiral groove portion for driving the spiral groove shaft, the drive shaft of the bevel gear is configured to penetrate the support member of the compression mechanism that connectably joins the vertices of the peaks of the pair of links forming the eight shape. Therefore, the eccentricity with respect to the axis center line of the spiral groove shaft can be minimized, unnecessary moment is not generated, and the effect of being able to simplify the constituent members is achieved.

[0022] Claim 4 According to the invention according to [claim], the other [member] configured to be orthogonal to the axis center line of the spiral groove shaft The drive shaft of the bevel gearThe inner circumference thereof is fitted onto the drive shaft so that the other bevel gear can slide in the axial center line direction of the drive shaft.

[0023] By rotationally driving the spiral groove shaft in one direction, the distance between a pair of members that connect the bottom side points of a pair of links forming the figure-eight and the top side points of a pair of links forming the reverse figure-eight facing the former is narrowed, the mountain-shaped inclination of the pair of links forming the figure-eight upward becomes stronger, and the valley-shaped inclination of a pair of links forming the reverse figure-eight symmetrically arranged with respect to the horizontal plane below the pair of links becomes stronger. As a result, when transitioning from the vertically long diamond shape formed by the links to the horizontally long diamond shape by rotationally driving the spiral groove shaft in the reverse direction, the distance between the meshing points of the pair of bevel gears and the vertices of the peaks of the pair of links forming the figure-eight and the support member that can be connected to the support member of the compression mechanism Slide in the rotational direction varies, The drive shaft of the other bevel gear the vertices of the peaks of the pair of links forming the figure-eight can enter and exit the support member that can be connected to the support member of the compression mechanism, and compared with a structure in which the other bevel gear cannot slide in the axial center line direction of the drive shaft, there is an effect that the distance between the support member and the drive source that drives one bevel gear can be kept constant. Slide in the rotational direction According to the invention described in claim

[0024] The portion where the other bevel gear is slidably fitted in the axial center line direction of 5 is formed by a ball spline. The drive shaft of the relevant bevel gear According to the invention described in claim

[0025] As a result, when transitioning from the vertically long diamond shape formed by the link to the horizontally long diamond shape, a smoother sliding action can be obtained when the meshing part of the bevel gear and the sliding of the drive shaft occur.

Brief Description of the Drawings

[0026]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Modes for Carrying Out the Invention

[0027] Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 8.

Examples

[0028] (Overall Configuration of the Metal Cutting Chip Compression Device) Hereinafter, embodiments of the present invention will be described based on the description in the drawings. As shown in FIGS. 1 to 3, the metal cutting chip compressing device of the present invention includes a hopper 2 for receiving cutting chips discharged from a machine tool, a crushing mechanism 3 located directly below the hopper 2 for crushing the cutting chips into smaller pieces, a transfer mechanism 4 for transferring the crushed and smaller cutting chips to a compression mechanism 5, a compression mechanism 5 for compressing and discharging the cutting chips, a link mechanism 17 for generating the compression force of the compression mechanism 5, a gear motor device 21 (not shown), a control unit 6 (not shown), an outer frame for supporting the structure, and a panel for shielding the interior.

[0029] (Hopper, outer frame and panel) As shown in FIGS. 1 to 3, the metal cutting chip compressing device 1 of the present invention has a substantially cubic shape and is surrounded on the outside by a shielding panel (not shown). The link mechanism 17 of the compression mechanism 5 protrudes from its upper part, giving it an appearance. Outer frame members are assembled by welding or the like at eight locations where the shielding panels meet to support the weight and load of the structure. Each shielding panel is screwed to the opposing outer frame members with screws or the like, but it may also be structured to hook onto a part of the outer frame member. A reinforcing member for supporting the weight of the link mechanism 17 is further added to the upper outer frame of the device 1. Also, a reinforcing member for supporting the crushing mechanism 3 is added to the middle section of the device 1. A hopper 2 for temporarily storing cutting chips is formed on the top plate as a shielding panel at the upper part of the device 1. Note that an extension hopper member for further enlarging the opening upward may be provided in the hopper 2.

[0030] (Crushing mechanism) As shown in FIG. 4, the crushing mechanism 3 includes two rotating shafts 31, bearings 35 for supporting each shaft, a plurality of crushing blades 32 driven by the power of a crushing motor device 24 via the rotating shaft 31 through a key or the like, a gap regulating member 33 for regulating the interval between adjacent crushing blades 32, a crushing motor device 24 attached to one end of the rotating shaft 31 for driving the crushing blades 32 through a key or the like, and a box 34 for attaching the bearings 35 and the crushing motor device 24. The box 34 is attached as a whole crushing mechanism 3 to the reinforcing member of the outer frame by a tightening bolt (not shown).

[0031] (Transfer mechanism) As shown in FIGS. 2 to 3, there are provided a transfer plate 71 which is wide enough to receive all the chips falling from the crushing blade 32 and is triangular to pentagonal in plan view and becomes narrower toward an opening provided in the upper part of the compression molding chamber 12, a plate 72 which is welded to the transfer plate 71 for attaching the transfer plate 71 to the box 34, and bolts for coupling the plate 72 and the box 34. The plate 72 has a welded structure with the transfer plate 71, but it may also be bolted or integrally formed. Also, the plate 72 and the box 34 may have a welded structure instead of a bolted connection. The transfer plate 71 is inclined and attached toward an opening provided in the upper part of the compression molding chamber 12. A vertical wall for preventing the chips from jumping out of the transfer plate 71 is provided at a predetermined height in a substantially vertical direction at the edge of the transfer plate 71.

[0032] The chips stored in the hopper 2 and crushed through the crushing mechanism 3 fall onto the transfer plate 71. The transfer plate 71 has a V-shaped cross section, and the crushed and fallen chips gather in the V-shaped groove of the transfer plate 71 and are sequentially accumulated inside the compression molding chamber 12 from the opening due to the inclination toward the opening provided in the upper part of the compression molding chamber 12.

[0033] (Compression mechanism) As shown in FIGS. 2 to 3, the compression mechanism 5 includes a link mechanism 17 located at the upper part of the apparatus 1, a compression plunger 11 that operates integrally therewith, a compression molding chamber 12 having an opening at the upper part into which chips are introduced, a bottom plate 13 capable of switching the presence or absence of a bottom hole 14, a reaction member 18 which is located directly below the bottom plate 13 and has a switching cylinder 15 attached to one side thereof and receives the compression force generated by the link mechanism 17, four columns for coupling the link mechanism 17 and the reaction member 18, and a gear motor device 21 (not shown) for generating the power of the link mechanism 17. The compression plunger 11 and the compression molding chamber 12 are fitted with a slight gap at the upper part in the initial position so as not to cause any misalignment during assembly.

[0034] Scrap sent from the transfer mechanism 4 is introduced through the opening provided at the upper part of the compression molding chamber 12. At this time, the bottom plate 13, whose presence or absence of the bottom hole 14 can be switched, is switched to the state without the bottom hole. When a detector (not shown) that detects the accumulation state of the metal cutting chips 22 (referred to as scrap) senses that the compression molding chamber 12 is full of scrap, the introduction of the scrap is stopped and the compression process is started. Compression is performed by the compression force of the link mechanism 17. The completion of the compression molding is achieved by stopping the compression operation when a current detector (not shown) of the motor device detects that a specified current corresponding to the completion of the compression has been reached. Also, the completion of the compression may be determined by another method such as detecting that the specified position has been reached.

[0035] (Link mechanism) As shown in Fig. 5, the link mechanism 17 includes a pair of upper links 81 that form a figure-eight shape upward, and a pair of lower links 82 that are arranged symmetrically with respect to the horizontal plane below the pair of upper links 81 and form an inverted figure-eight shape. The two peak points of the pair of upper links 81 that form the figure-eight shape are Slide in the rotational direction Possibly connected to the support member 83 of the compression mechanism, and the two valley points of the pair of lower links 82 that form the inverted figure-eight shape are possibly connected to the fixing member 84 of the compression plunger 11 that performs the compression molding of the metal cutting chips. Slide in the rotational direction In addition, it includes a pair of connecting members 87 that connect the skirt side point 85 of the pair of upper links 81 that form the figure-eight shape and the apex side point 86 of the pair of lower links 82 that form the inverted figure-eight shape facing it.

[0036] One of the connecting members 87 has a right-twisted spiral groove hole inside, and the other has a left-twisted spiral groove hole. It also includes a spiral groove shaft 88 that penetrates both spiral groove holes and meshes with both spiral groove holes on the outer periphery. By rotationally driving the spiral groove shaft 88, it acts in the direction of compressing the metal cutting chips, and is connected to a power source that acts in the direction of releasing the compression operation by reversely driving it. Also, the connecting member 87 can reduce the driving force for driving the spiral groove shaft 88 by incorporating a ball circulating ball screw into the internal spiral groove hole.

[0037] The link mechanism 17 may be directly driven by the gear motor device 21, or as shown in FIG. 6, by providing a distance between a point 85 on the skirt side of a pair of upper links 81 forming a figure-eight shape and a point 86 on the top side of a pair of lower links 82 forming an inverted figure-eight shape facing the former, an bevel gear reduction mechanism 51 may be incorporated between the links. In the bevel gear reduction mechanism 51, one large bevel gear 52 is fixed to the swivel groove shaft 88 via a key or the like, and the other small bevel gear 53 is engaged therewith. The small bevel gear 53 The drive shaft 54 of the bevel gear is configured to be slidable with respect to The drive shaft 54 of the bevel gear which penetrates the support member 83 and transmits the power of a gear motor device 21 (not shown) to the upper part by a power transmission gear or pulley. Further, a ball circulating ball spline is incorporated in the The drive shaft 54 of the bevel gear wherein the small bevel gear 53 slides, so that the sliding force of the small bevel gear 53 The drive shaft 54 of the bevel gear can be reduced.

[0038] Further, the link mechanism 17 rotates the spiral groove shaft 88 in one direction to increase the mountain-shaped inclination of a pair of upper links 81 forming a figure-eight shape upward, and at the same time, the valley-bottom inclination of a pair of lower links 82 forming an inverted figure-eight shape symmetrically arranged with respect to the horizontal plane below the pair of upper links 81 is increased, so that a force (F1) acting in the direction of compressing the metal cutting chips 22, and a force (F2) acting in the horizontal direction of a pair of coupling members 87 coupling the point 85 on the skirt side of the pair of upper links 81 forming the figure-eight shape and the point 86 on the top side of the pair of lower links 82 forming the inverted figure-eight shape facing the former, the ratio (F1 / F2) is the tangent of the angle (Θ) formed by the pair of upper links 81 forming a figure-eight shape upward with the horizontal plane.

[0039] Therefore, at the end stage of the operation of compressing the metal cutting chips 22, the chevron inclinations of the pair of upper links 81 that form a figure-eight shape upward are strong (Θ is large). Thus, due to the force (F2) acting in the horizontal direction of the pair of connecting members 87 that connect the base-side points 85 of the pair of upper links 81 forming the figure-eight shape and the apex-side points 86 of the pair of lower links 82 forming the inverted figure-eight shape facing these points, a force (F1) acting in the direction of further compressing the larger metal cutting chips 22 can be obtained. Therefore, a large compression force can be generated with a small power, and miniaturization of the device can be achieved.

[0040] Furthermore, focusing on the displacement of the compression mechanism 5, at the initial stage of the operation of compressing the metal cutting chips 22, the chevron inclinations of the pair of upper links 81 that form a figure-eight shape upward are gentle (Θ is small). Thus, with respect to the horizontal displacement (Δ2) of the pair of connecting members 87 that connect the base-side points 85 of the pair of upper links 81 forming the figure-eight shape and the apex-side points 86 of the pair of lower links 82 forming the inverted figure-eight shape facing these points, a state where the ratio (Δ1 / Δ2) of the displacement (Δ1) moving in the direction of compressing the metal cutting chips 22 is large can be obtained.

[0041] Therefore, when the required compression force at the initial stage of starting the compression of the metal cutting chips 22 is relatively small, a faster displacement in the compression direction can be obtained, and at the same time, a larger compression force can be obtained at the end stage of compression. As a result, a desired compression force can be satisfied with a small power, and miniaturization of the device is realized.

[0042] (Bevel gear reduction mechanism) As shown in FIG. 8, the bevel gear reduction mechanism 51 The drive shaft 54 of the bevel gear penetrates the support member 83 and transmits the rotational power of the gear motor device 21 (not shown) to the upper part via a pulley or the like, while The drive shaft 54 of the bevel gear is vertically constrained by a retaining ring or the like so as not to move up and down in the figure. The drive shaft 54 of the bevel gear A small bevel gear 53 is mounted thereon so as to be vertically slidable. A ball spline may be used for the sliding part to achieve smoother sliding. The pinion gear 53The distance between the [component] and the spiral groove shaft 88 is kept constant by the bevel gear position regulating member 55. The large bevel gear 52 is mounted on the spiral groove shaft 88 via a key or the like and transmits rotational power to the spiral groove shaft 88. Also, The drive shaft 54 of the bevel gear its axis center line is arranged so as to be orthogonal to the axis center line of the spiral groove shaft 88.

[0043] Thus, even when the link mechanism 17 operates and the spiral groove shaft 88 moves up and down in the figure, the pinion gear 53 The drive shaft 54 of the bevel gear only moves up and down in the figure with respect to [component], and the position of a pulley or the like that transmits the rotational power of the gear motor device 21 (not shown) does not change vertically. Also, no eccentric load is generated.

[0044] The above-described embodiments are not limited thereto as the present invention, but are exemplified for explanation, and changes and additions are possible as long as they do not conflict with the technical idea of the present invention that can be recognized by those skilled in the art from the description of the claims.

Explanation of Reference Numerals

[0045] 1 Metal cutting chip compressor 2 Hopper 3 Crushing mechanism 4 Transfer mechanism 5 Compression mechanism 6 Control unit 11 Compression plunger 12 Compression molding chamber 13 Bottom plate 14 Bottom hole 15 Switching cylinder 17 Link mechanism 18 Reaction force member 21 Gear motor device 22 Metal cutting chips (swarf) 23 Compression molded product 24 Crushing motor device 31 Rotating shaft 32 Crushing blade 33 Clearance regulating member 34 Box 35 Bearing 51 Bevel gear reduction mechanism 52 Large bevel gear 53 Small bevel gear 54 The drive shaft of the bevel gear 55 Gear position regulating member 71 Transfer plate 72 Plate 81 Upper link 82 Lower link 83 Support member 84 Plunger fixing member 85 Tip of upper link 86 Top of lower link 87 Coupling member 88 Helical groove shaft

Claims

1. A metal cutting chip compression device includes a hopper for receiving metal cutting chips, a crushing mechanism for crushing the metal cutting chips sent from the hopper, a transport mechanism for sending the crushed metal cutting chips to a compression molding chamber, and a compression mechanism for compressing and molding the transported metal cutting chips in the compression molding chamber. The compression mechanism includes a pair of links that form an eight-shape facing upward, and a pair of links that form an inverted eight-shape arranged symmetrically with the pair of links below the pair of links with respect to a horizontal plane. Two peaks of the pair of links that form the eight-shape are slidably coupled to a support member of the compression mechanism in a rotational direction, and two bottoms of the pair of links that form the inverted eight-shape are coupled to a metal cutting chip support member. a pair of members that are slidably connected to a member that performs compression molding of the scraps in a rotational direction and that connect a point on the bottom side of a pair of links that form the figure eight shape with a point on the top side of a pair of links that form the opposite inverted figure eight shape, one of the pair of members having a right-twisted spiral slot hole and the other having a left-twisted spiral slot hole, a spiral groove shaft that passes through both spiral slot holes and screws into both spiral slot holes on its outer periphery, and a drive mechanism is provided between the pair of members that rotates the spiral groove shaft to act in a direction to compress the metal cutting scraps and rotates it in the opposite direction to act in a direction to release the compression action.

2. The metal cutting chip compression device according to claim 1, characterized in that in the compression mechanism, the spiral groove holes inside the pair of members connecting the bottom points of the pair of links forming the figure eight and the top points of the pair of links forming the opposite inverted figure eight are formed by a ball circulation type ball screw, and the opposing spiral groove shaft forms a spiral groove shaft into which the ball screw is screwed.

3. A metal cutting scrap compression device comprising a hopper for receiving metal cutting scraps fed therein, a crushing mechanism for crushing the metal cutting scraps sent from the hopper, a transport mechanism for sending the crushed metal cutting scraps into a compression molding chamber, and a compression mechanism for compression molding the transported metal cutting scraps within the compression molding chamber, wherein the compression mechanism comprises a pair of links forming an eight shape facing upward, and a pair of links below the pair of links forming an inverted eight shape disposed symmetrically with the pair of links about a horizontal plane, and two peak points of the pair of links forming the eight shape are slidably connected to a support member of the compression mechanism in the rotational direction, and two bottom points of the pair of links forming the inverted eight shape are slidably connected to a member which performs compression molding of the metal cutting scraps, and The present invention relates to a method for manufacturing a link link, comprising: a pair of members connecting points on the top side of a pair of links connected to each other; one of the pair of members has a right-handed helical slot hole and the other has a left-handed helical slot hole inside; the pair of members has a helical groove shaft that passes through both helical slot holes and screws into both helical slot holes on its outer periphery; the helical groove shaft has a pair of bevel gears at a junction of a right-handed helical groove portion and a left-handed helical groove portion for driving the helical groove shaft; a right-handed spiral groove portion and a left-handed spiral groove portion of the first bevel gear, the right-handed spiral groove portion and the left-handed spiral groove portion of the first bevel gear, the left-handed spiral groove portion and the right-handed spiral groove portion of the second bevel gear, the left-handed spiral groove portion and the right ... and the left-handed spiral groove portion and the right-handed spiral groove portion and the left-handed spiral groove portion and the right-handed spiral groove portion and the left-handed spiral groove portion and the right-handed spiral groove portion and the left-handed spiral groove portion and the right-handed spiral groove portion and the left-handed spiral groove portion and the right-handed spiral

4. 4. The metal cutting chip compression device according to claim 3, characterized in that the inner circumference of the drive shaft of the other bevel gear, which is configured to be perpendicular to the axial center line of the spiral groove shaft, is fitted onto the drive shaft so that the other bevel gear can slide in the axial center line direction of the drive shaft.

5. 5. The metal cutting chip compression device according to claim 4, wherein the portion in which the other bevel gear is fitted so as to be slidable in the axial direction of the drive shaft of the other bevel gear is formed by a ball spline.

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