Metal cutting chip compression device

Abstract

In solidifying metal cutting chips, which requires a large compressive force, a large compressive force can be obtained without using large hydraulic cylinders or large hydraulic systems. [Solution] The upper part of the compression plunger is equipped with a V-shaped link and a valley-shaped link symmetrical to the horizontal plane, and a coupling member that slidably connects the link ends of both links. This coupling member is penetrated by a helical groove shaft, which has a helical groove on one end and a helical groove on the other end with the opposite direction. The V-shaped link is connected to the upper support member, and the valley-shaped link is connected to the compression plunger. Furthermore, a pair of bevel gears are provided near the confluence of the two helical groove shafts, and power is transmitted by the bevel gears to obtain a compression force greater than the input when the compression is completed in a vertically elongated rhombic shape, and to obtain a rapid displacement of the compression plunger when the compression starts in a horizontally elongated shape.

Description

Technical Field

[0001] The present invention mainly relates to a metal chip compressing 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 shape, spiral / coil shape, spiral shape, wrinkled / curled shape, chip shape, etc. As they are, handling becomes complicated. Therefore, these chips are solidified into a predetermined shape using a compressing 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 compressing 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, resulting in a problem that a large compressing power corresponding to a large compression area with the inner diameter of the compression molding chamber as the diameter is required and the device becomes large-sized.

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

Means for Solving the Problems

[0006] (Solution 1) The metal cutting chip compression device of the present invention, as described in claim 1, comprises a hopper for receiving metal cutting chips that are fed in, a crushing mechanism for crushing the metal cutting chips sent from the hopper, a transfer mechanism for sending the crushed metal cutting chips to a compression molding chamber, and a compression mechanism for compressing the transferred metal cutting chips in the compression molding chamber, wherein the compression mechanism comprises a pair of links that form a figure eight shape upwards, and a pair of links below the pair of links that form an inverted figure eight shape, arranged symmetrically with respect to the horizontal plane of the pair of links that form the figure eight shape, and the two peaks of the pair of links that form the figure eight shape are supported by a support member of the compression mechanism. Sliding in the rotational direction The pair of links that can be connected and form the inverted V shape are connected to a member that performs compression forming of metal cutting chips. Sliding in the rotational direction The points on the base 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 to it are connectable. Allies It comprises a pair of members that connect the said a pair The component has a right-handed twisted helical groove on one side and a left-handed twisted helical groove on the other, and a helical groove shaft that penetrates both helical grooves and screws into both helical grooves on its outer circumference. By rotating the helical groove shaft, it acts in a direction that compresses the metal cutting chips, and by rotating it in the opposite direction, it acts in a direction that releases the compression action. The mechanism between the pair of members It was designed to be equipped with these features.

[0007] (Solution 2 ) The metal cutting chip compression device of the present invention is, according to the claim 2 As described in the claim, 1 In the metal cutting chip compression device described above, the spiral groove holes inside a pair of members that connect the base points of a pair of links forming a figure-eight shape with the top points of a pair of links forming an inverted figure-eight shape opposite to them are constructed by ball-circulating ball screws, and the spiral groove shaft on the other side forms a spiral groove shaft into which the ball screw is screwed.

[0008] (Solution 3 ) The metal cutting chip compression device of the present invention is, according to the claim 3 As described, the helical groove shaft is provided with a pair of bevel gears that drive the helical groove shaft at the junction of the right-handed and left-handed helical grooves, with one bevel gear fitted near the junction of the right-handed and left-handed helical grooves of the helical groove shaft, and the other bevel gear drives the other bevel gear. The drive shaft of the other bevel gear The axial centerline of the helical groove axis is configured to be perpendicular to the axial centerline of the helical groove axis, The drive shaft of the other bevel gear The peaks of the mountain peaks of the pair of links that form the aforementioned figure-eight shape Sliding in the rotational direction The design allows it to penetrate the support member of the compression mechanism, which is connected in a way that allows it to pass through.

[0009] (Solution 4 ) The metal cutting chip compression device of the present invention is, according to the claim 4 As described in the claim, 3 In the metal cutting chip compression apparatus described above, the other is configured to be perpendicular to the axial center line of the helical groove axis. Drive shaft of a bevel gear The inner circumference of the gear is configured to be fitted onto the drive shaft so that the other bevel gear can slide in the direction of the drive shaft's axial centerline.

[0010] (Solution 5 ) The metal cutting chip compression device of the present invention is, according to the claim 5 As described in the claim, 4 In the metal cutting chip compression device described above, the other bevel gear is The drive shaft of the bevel gear The part that is slidably fitted in the direction of the axial centerline is configured to be formed by a ball spline. [Effects of the Invention]

[0011] According to the invention of claim 1, a metal cutting chip compression device comprising a hopper for receiving metal cutting chips that are fed in, a crushing mechanism for crushing the metal cutting chips sent from the hopper, a transfer mechanism for sending the crushed metal cutting chips to a compression molding chamber, and a compression mechanism for compressing the transferred metal cutting chips in the compression molding chamber, wherein the compression mechanism comprises a pair of links that form a figure eight shape upwards, and a pair of links below the pair of links that form an inverted figure eight shape, arranged symmetrically with respect to the horizontal plane of the pair of links that form the figure eight shape, and the two peaks of the pair of links that form the figure eight shape are supported by a support member of the compression mechanism Sliding in the rotational direction The two valleys of the pair of links that can be connected and form the inverted V shape are connected to a member that performs compression forming of metal cutting chips. Sliding in the rotational direction The points on the base 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 to it are connectable. Allies It comprises a pair of members that connect the said a pair The component has a right-handed twisted helical groove on one side and a left-handed twisted helical groove on the other, and a helical groove shaft that penetrates both helical grooves and screws into both helical grooves on its outer circumference. By rotating the helical groove shaft, it acts in a direction that compresses the metal cutting chips, and by rotating it in the opposite direction, it acts in a direction that releases the compression action. The mechanism between the pair of members It is configured to be equipped with these features.

[0012] This allows the spiral groove axis to rotate in one direction, thereby controlling the base of the pair of links that form the figure eight shape and the top of the pair of links that form the opposite inverted figure eight shape. Allies As the distance between the pair of members connecting them narrows, the V-shaped slope of the pair of links forming a figure eight shape upwards intensifies, and the valley-bottom slope of the pair of links forming an inverted figure eight shape, positioned below the pair of links and symmetrically with respect to the horizontal plane, intensifies, acting in a direction that compresses the metal cutting chips. Furthermore, by rotating the helical groove axis in the opposite direction, the point on the base side of the pair of links forming the figure eight shape and the point on the top side of the pair of links forming the inverted figure eight shape opposite to it... AlliesThe distance between a pair of members to be joined increases, the peak slope of a pair of links forming an eight-shaped figure upward is loosened, and the valley slope of a pair of links forming an inverted eight-shaped figure symmetrically arranged with respect to the horizontal plane below the pair of links is loosened, thereby obtaining an effect that a device can be obtained that acts in a direction to release the compression operation of metal cutting chips.

[0013] Further, by rotationally driving the spiral groove shaft in one direction, the peak slope of a pair of links forming an eight-shaped figure upward is strengthened, and the valley slope of a pair of links forming an inverted eight-shaped figure symmetrically arranged with respect to the horizontal plane below the pair of links is strengthened. Thus, a force (F1) acting in a direction to compress metal cutting chips, and a ratio (F1 / F2) between a force (F2) acting in the horizontal direction of a pair of members connecting points on the skirt side of a pair of links forming the eight-shaped figure and points on the top side of a pair of links forming the inverted eight-shaped figure facing each other is equal to the tangent of an angle (Θ) formed by a pair of links forming an eight-shaped figure 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-shaped figure upward is strong (Θ is large). Thus, according to the force (F2) acting in the horizontal direction of a pair of members connecting points on the skirt side of a pair of links forming the eight-shaped figure and points on the top side of a pair of links forming the inverted eight-shaped figure facing each other, 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 device can be achieved.

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

[0016] Therefore, the device includes a pair of links that form a figure-eight shape upwards, and a pair of links below the aforementioned pair of links that form an inverted figure-eight shape, arranged symmetrically with respect to the horizontal plane, with the peaks of the pair of links forming the figure-eight shape connected to the support member of the compression mechanism. Sliding in the rotational direction The pair of links that can be connected and form the inverted V shape are connected to the member that performs the compression molding of metal cutting shavings. Sliding in the rotational direction The points on the base 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 to it are connectable. Allies It comprises a member that connects the said a pair The component has a spiral groove hole with a right-hand twist on one side and a spiral groove hole with a left-hand twist on the other side, and a spiral groove shaft that penetrates both spiral groove holes and screws into both spiral groove holes on its outer circumference. The drive device is configured to compress the metal cutting chips by rotating the spiral groove shaft in one direction and to release the compression by rotating it in the opposite direction. This configuration provides the effect of obtaining a faster compression displacement when the required compression force at the beginning of chip compression is relatively small, and obtaining a larger compression force at the end of compression.

[0017] Also, This results in claim 1 Such invention In addition to the power amplification effect and large displacement ratio obtained by the metal cutting chip compression device, a large space can be created between the pair of links that form a figure-eight shape upwards and the pair of links that form an inverted figure-eight shape below the pair of links, which are arranged symmetrically with respect to the horizontal plane. This provides the advantage that a gear mechanism for power transmission can be installed in this space.

[0018] Claim 2 According to the invention, 1In addition to the metal cutting chip compression device described above, the internal helical grooves of a pair of members that connect the base points of a pair of links forming a figure-eight shape with the top points of a pair of links forming an inverted figure-eight shape opposite to them are constructed by ball-circulating ball screws, and the opposing helical groove shaft forms a helical groove shaft into which the ball screw is screwed.

[0019] This significantly reduces the frictional force in the threaded portion, resulting in the ability to efficiently transmit the force that compresses the chips even with the same rotational force.

[0020] Claim 3 According to the invention, a pair of bevel gears are provided at the confluence of a right-handed helical groove and a left-handed helical groove to drive the helical groove shaft, one bevel gear being fitted near the confluence of the right-handed and left-handed helical grooves of the helical groove shaft, and the other bevel gear driving the other bevel gear. The drive shaft of the other bevel gear The axial centerline of the helical groove axis is configured to be perpendicular to the axial centerline of the helical groove axis, The drive shaft of the other bevel gear The peaks of the mountain peaks of the pair of links that form the aforementioned figure-eight shape Sliding in the rotational direction It is configured to penetrate the support member of the compression mechanism, which is connected in a possible manner.

[0021] As a result, one bevel gear is fitted to the shaft of the confluence of the right-handed and left-handed helical grooves that drive the helical groove shaft, and the other bevel gear is configured such that the axis centerline of the drive shaft that drives the one bevel gear is perpendicular to the axis centerline of the helical groove shaft, while the drive shaft of the bevel gear is configured to pass through the support member of the compression mechanism that connects the peaks of the pair of links forming the figure eight shape. This minimizes the eccentricity of the helical groove shaft relative to its axis centerline, prevents the generation of unnecessary moments, and simplifies the components.

[0022] Claim 4 According to the invention, the other is configured to be perpendicular to the axial center line of the helical groove axis. Drive shaft of a bevel gearThe inner circumference of the gear is fitted onto the drive shaft such that the other bevel gear can slide in the direction of the drive shaft's axial centerline.

[0023] As a result, by rotating the helical groove axis in one direction, the distance between the pair of members connecting the base points of the pair of links forming the figure eight shape and the top points of the opposite pair of links forming the inverted figure eight shape narrows, the mountain-shaped slope of the pair of links forming the figure eight shape upwards intensifies, and the valley-bottom slope of the pair of links forming the inverted figure eight shape, which are positioned below the pair of links and symmetrically with respect to the horizontal plane, intensifies, and as a result, the vertically elongated rhombus formed by the links changes, and by rotating the helical groove axis in the opposite direction, As the distance between the pair of members connecting the base points of the pair of links forming the figure-eight shape and the top points of the opposing pair of links forming the inverted figure-eight shape widens, the mountain-shaped slope of the pair of links forming the figure-eight shape upwards becomes gentler, and the valley-bottom slope of the pair of links forming the inverted figure-eight shape, which are positioned below the pair of links and symmetrically with respect to the horizontal plane, becomes gentler, the shape changes to a horizontally elongated rhombus formed by the links, and the meshing points of the pair of bevel gears and the peaks of the mountain-shaped links forming the figure-eight shape connect to the support member of the compression mechanism. Sliding in the rotational direction Even if the distance to the connecting support member changes, The drive shaft of the other bevel gear The vertices of the peaks of the pair of links that form the aforementioned figure-eight shape are connected to the support member of the compression mechanism. Sliding in the rotational direction Compared to a structure in which the other bevel gear cannot slide in the direction of the axial centerline of the drive shaft, as the support member does not move in or out of the connectable support member, this structure has the effect of maintaining a constant distance between the support member and the drive source that drives one of the bevel gears.

[0024] Claim 5 According to the invention described above, the other bevel gear is The drive shaft of the bevel gear The portion that is slidably fitted in the direction of the axial centerline is formed by a ball spline.

[0025] This results in a smoother sliding motion between the meshing portion of the bevel gear and the drive shaft when the shape changes from a vertically elongated rhombus formed by the link to a horizontally elongated rhombus. [Brief explanation of the drawing]

[0026] [Figure 1] A plan view showing one embodiment of the present invention. [Figure 2] A front view showing one embodiment of the present invention, with the panel removed and some parts omitted. [Figure 3] A left side view showing one embodiment of the present invention, with the panel removed and some parts omitted. [Figure 4] Plan view of a crushing mechanism showing one embodiment of the present invention [Figure 5] Diagram illustrating a compression mechanism showing one embodiment of the present invention. [Figure 6] Diagram illustrating a compression mechanism showing another embodiment of the present invention. [Figure 7] Diagram illustrating the ball screw portion of a helical groove hole, showing one embodiment of the present invention. [Figure 8] Cross-sectional view of a bevel gear section showing one embodiment of the present invention. [Modes for carrying out the invention]

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

[0028] (Overall configuration of a metal cutting chip compression device) Embodiments of the present invention will be described below based on the drawings. As shown in Figures 1 to 3, the metal cutting chip compression device of the present invention comprises a hopper 2 for receiving chips discharged from a machine tool, a crushing mechanism 3 located directly below the hopper 2 for crushing the chips into smaller pieces, a transfer mechanism 4 for transferring the crushed chips to a compression mechanism 5, a compression mechanism 5 for compressing and discharging the 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 panels for shielding the interior.

[0029] (Hopper, outer frame, and panels) As shown in Figures 1 to 3, the metal cutting chip compression device 1 of the present invention has a roughly cubic shape and is surrounded on the outside by shielding panels (not shown), with the link mechanism 17 of the compression mechanism 5 protruding from the top. At eight joints between the shielding panels, outer frame members are assembled by welding or other means to support the weight and load of the structure. Each shielding panel is screwed to the opposing outer frame member with screws or the like, but a structure in which a part of it is hooked onto the outer frame member is also possible. The outer frame at the top of the device 1 is further reinforced with a reinforcing member to support the weight of the link mechanism 17. In addition, the middle section of the device 1 is reinforced with a reinforcing member to support the crushing mechanism 3. At the top of the device 1, a hopper 2 for temporarily storing chips is formed on the top plate which serves as a shielding panel. The hopper 2 may be provided with an extension hopper member that further enlarges the opening upwards.

[0030] (Crushing mechanism) As shown in Figure 4, the crushing mechanism 3 consists of two rotating shafts 31, bearings 35 supporting each shaft, multiple crushing blades 32 driven via keys or the like through the rotating shafts 31 by the power of a crushing motor device 24, gap regulating members 33 that regulate the spacing between adjacent crushing blades 32, a crushing motor device 24 attached to one end of the rotating shafts 31 that drives the crushing blades 32 via keys or the like, and a box 34 to which the bearings 35 and the crushing motor device 24 are attached. The box 34 is attached as a whole to a reinforcing member of the outer frame by tightening bolts (not shown).

[0031] (transfer mechanism) As shown in Figures 2 and 3, the system consists of a transfer plate 71 that is wide to receive all the chips falling from the crushing blade 32 and narrows towards an opening at the top of the compression molding chamber 12, forming a triangular or pentagonal shape in plan view; a plate 72 that is welded to the transfer plate 71 to attach it to the box 34; and bolts that connect the plate 72 to the box 34. Although the plate 72 is welded to the transfer plate 71, it may also be bolted or an integrated structure. The plate 72 and the box 34 may also be welded instead of bolted. The transfer plate 71 is mounted at an angle toward the opening at the top of the compression molding chamber 12. Vertical walls are provided at a predetermined height in a substantially vertical direction on the edge of the transfer plate 71 to prevent chips from flying out of the transfer plate 71.

[0032] The chips stored in the hopper 2 and crushed via the crushing mechanism 3 fall onto the transfer plate 71. The transfer plate 71 has a V-shaped cross-section, and the crushed chips that fall collect in the V-shaped grooves of the transfer plate 71 and are sequentially accumulated inside the compression molding chamber 12 through the opening provided at the top of the chamber, due to the slope toward the opening.

[0033] (Compression mechanism) As shown in Figures 2 and 3, the compression mechanism 5 consists of a link mechanism 17 located at the top of the device 1, a compression plunger 11 that operates integrally with it, a compression molding chamber 12 having an opening at the top into which chips are fed, a bottom plate 13 that can switch between having a bottom hole 14 or not, a reaction force member 18 located directly below the bottom plate 13 with a switching cylinder 15 attached to one side to receive the compression force generated by the link mechanism 17, four support columns connecting the link mechanism 17 and the reaction force member 18, and a gear motor device 21 (not shown) that generates power for the link mechanism 17. The compression plunger 11 and the compression molding chamber 12 are fitted together with a small gap at the top in their initial position to prevent misalignment of their respective cores during assembly.

[0034] Chips sent from the transfer mechanism 4 are fed into the compression molding chamber 12 through an opening located at the top of the chamber. At this time, the bottom plate 13, which can be switched to have or not have a bottom hole 14, is switched to the state without a bottom hole. When a detector (not shown) that detects the accumulation state of metal cutting chips 22 (referred to as chips) detects that the compression molding chamber 12 is full of chips, the feeding of chips stops and the process moves to the compression stage. Compression is performed by the compressive force of the link mechanism 17. The completion of the compression molding is indicated 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 compression has been reached. Alternatively, the completion of compression may be determined by another method, such as detecting that a specified position has been reached.

[0035] (Link mechanism) As shown in Figure 5, the link mechanism 17 includes a pair of upper links 81 that form a figure eight shape upwards, and a pair of lower links 82 positioned below the pair of upper links 81 and symmetrically arranged with respect to the horizontal plane, forming an inverted figure eight shape. The two peaks of the pair of upper links 81 that form the figure eight shape are connected to the support member 83 of the compression mechanism. Sliding in the rotational direction The two valleys of a pair of lower links 82, which can be connected and form an inverted V shape, are fixed to the fixing member 84 of the compression plunger 11 that performs the compression forming of metal cutting chips. Sliding in the rotational direction It includes a pair of connecting members 87 that connect the base points 85 of a pair of upper links 81 that form a figure-eight shape and the top points 86 of a pair of lower links 82 that form an inverted figure-eight shape opposite to it.

[0036] The connecting member 87 has a right-handed twisted helical groove hole on one side and a left-handed twisted helical groove hole on the other side, and a helical groove shaft 88 that penetrates both helical groove holes and screws into both helical groove holes on its outer circumference. The connecting member 87 is connected to a power source that rotates the helical groove shaft 88 to compress the metal cutting chips and rotates it in the opposite direction to release the compression. Furthermore, the connecting member 87 can reduce the driving force required to drive the helical groove shaft 88 by incorporating a ball-circulating ball screw into the internal helical groove hole.

[0037] The link mechanism 17 may be directly driven by the gear motor device 21, or, as shown in Figure 6, a bevel gear reduction mechanism 51 may be incorporated between the links by providing a distance between the points 85 on the base side of the pair of upper links 81 that form a figure eight shape and the points 86 on the top side of the pair of lower links 82 that form an inverted figure eight shape opposite to it. In the bevel gear reduction mechanism 51, one large bevel gear 52 is fixed to the slewing groove shaft 88 via a key or the like, and the other small bevel gear 53 meshes with it. The small bevel gear 53 is Drive shaft 54 ​​of the bevel gear It is configured to be slidable relative to it. Drive shaft 54 ​​of the bevel gear It passes through the support member 83 and transmits power from a gear motor device 21 (not shown) via power transmission gears and pulleys at the top. Also, the bevel gear 53 slides. Drive shaft 54 ​​of the bevel gear By incorporating a ball-circulating ball spline, the bevel gear 53 Drive shaft 54 ​​of the bevel gear This can reduce the sliding force.

[0038] Furthermore, the link mechanism 17 rotates the helical groove shaft 88 in one direction, thereby increasing the mountain-shaped inclination of the pair of upper links 81 that form a figure-eight shape upwards, and increasing the valley-bottom inclination of the pair of lower links 82 that form an inverted figure-eight shape below the pair of upper links 81, which are arranged symmetrically with respect to the horizontal plane. The ratio (F1 / F2) of the force acting in the direction of compressing the metal cutting chips 22 (F1) to the force acting horizontally on the pair of connecting members 87 that connect the points 85 on the base side of the pair of upper links 81 that form the figure-eight shape and the points 86 on the top side of the pair of lower links 82 that form the inverted figure-eight shape opposite to it is the tangent to the angle (Θ) that the pair of upper links 81 that form a figure-eight shape upwards make with the horizontal plane.

[0039] Therefore, towards the end of the operation to compress the metal cutting chips 22, the V-shaped inclination of the pair of upper links 81 that form an upward V-shape is strong (Θ is large), and the horizontal force (F2) acting on the pair of connecting members 87 that connect the points 85 on the base side of the pair of upper links 81 that form the V-shape and the points 86 on the top side of the pair of lower links 82 that form the opposite inverted V-shape generates a force (F1) that acts in the direction of compressing even larger metal cutting chips 22, so that a large compressive force can be generated with a small power, and the device can be miniaturized.

[0040] Furthermore, focusing on the displacement of the compression mechanism 5, in the initial stages of the operation to compress the metal cutting chips 22, the V-shaped incline of the pair of upper links 81 that form an upward V-shape is gentle (Θ is small). As a result, a large ratio (Δ1 / Δ2) is obtained between the horizontal displacement (Δ2) of the pair of connecting members 87 that connect the points 85 on the base side of the pair of upper links 81 that form the V-shape and the points 86 on the top side of the pair of lower links 82 that form an inverted V-shape opposite to them, and the displacement (Δ1) that moves in the direction of compressing the metal cutting chips 22.

[0041] Therefore, when the required compressive force at the beginning of the compression of the metal cutting chips 22 is relatively small, a faster compression direction displacement can be obtained, and at the same time, a larger compressive force can be obtained towards the end of the compression. As a result, the desired compressive force can be met with less power, thus enabling miniaturization of the device.

[0042] (Bevel gear reduction mechanism) As shown in Figure 8, the bevel gear reduction mechanism 51 Drive shaft 54 ​​of the bevel gear It penetrates the support member 83 and transmits the rotational power of a gear motor device 21 (not shown) to the upper part via a pulley or the like, Drive shaft 54 ​​of the bevel gear The object is restrained vertically by retaining rings or other means to prevent it from moving up or down the diagram. Drive shaft 54 ​​of the bevel gear A bevel gear 53 is mounted thereto so as to be able to slide up and down. A ball spline may be used in this sliding part to achieve smoother sliding. Small bevel gear 53The distance between the gear and the helical groove shaft 88 is kept constant by the bevel gear position regulating member 55. The large bevel gear 52 is mounted on the helical groove shaft 88 via a key or the like and transmits rotational power to the helical groove shaft 88. Drive shaft 54 ​​of the bevel gear The axis centerline of the shaft is positioned perpendicular to the axis centerline of the helical groove shaft 88.

[0043] As a result, even when the link mechanism 17 is activated and the helical groove shaft 88 moves up and down in the figure, the bevel gear 53 Drive shaft 54 ​​of the bevel gear By simply moving up and down in the diagram, the position of the pulleys and other components that transmit the rotational power of the gear motor device 21 (not shown) does not change vertically. Furthermore, no uneven load is generated.

[0044] The embodiments described above are not limiting to the present invention, but are illustrative examples provided for illustrative purposes, and can be modified and added to as long as they do not contradict the technical concept of the present invention as can be understood by those skilled in the art from the claims. [Explanation of symbols]

[0045] 1. Metal cutting chip compactor 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 members 21 Gear motor device 22 Metal cutting waste (chips) 23 Compression molded products 24 Crushing motor device 31 Rotation axis 32 crushing blades 33 Gap regulating member 34 boxes 35 Bearings 51 Bevel gear reduction mechanism 52 Large bevel gear 53 Small bevel gear 54 Drive shaft of a bevel gear 55 Gear position regulating member 71 Transfer plate 72 plates 81 Upper Link 82 Lower link 83 Support Member 84 Plunger fixing member 85 Upper Link Base 86 Lower link top 87 Connecting member 88 Spiral groove shaft

Claims

1. A metal cutting chip compression apparatus comprising a hopper for receiving metal cutting chips that are fed in, a crushing mechanism for crushing the metal cutting chips sent from the hopper, a transfer mechanism for sending the crushed metal cutting chips to a compression molding chamber, and a compression mechanism for compressing the transferred metal cutting chips in the compression molding chamber, wherein the compression mechanism comprises a pair of links that form a figure eight shape upwards, and a pair of links below the pair of links that form an inverted figure eight shape, arranged symmetrically with respect to the horizontal plane of the pair of links that form the figure eight shape, with the two peaks of the pair of links forming the figure eight shape being pivotably connected to a support member of the compression mechanism, and the bottom of the pair of links that form the inverted figure eight shape A metal cutting chip compression device characterized by the following: two points are pivotably connected to a member that performs compression molding of metal cutting chips; a pair of members connecting the base point of a pair of links forming the figure eight shape and the top point of a pair of links forming the opposite inverted figure eight shape; one of the members has a right-handed twisted helical groove hole inside, and the other has a left-handed twisted helical groove hole; a helical groove shaft penetrates both helical groove holes and is screwed onto the outer circumference of both helical groove holes; and a drive device is provided that rotates the helical groove shaft to act in the direction of compressing the metal cutting chips and reverses the rotation to act in the direction of releasing the compression operation.

2. A metal cutting chip compression apparatus comprising a hopper for receiving metal cutting chips that are fed in, a crushing mechanism for crushing the metal cutting chips sent from the hopper, a transfer mechanism for sending the crushed metal cutting chips to a compression molding chamber, and a compression mechanism for compressing the transferred metal cutting chips in the compression molding chamber, wherein the compression mechanism comprises a pair of links that form a figure eight shape upwards, and a pair of links below the pair of links that form an inverted figure eight shape, arranged symmetrically with respect to the horizontal plane of the pair of links that form the figure eight shape, and the two peaks of the pair of links that form the figure eight shape are pivotably connected to a support member of the compression mechanism, and the two valleys of the pair of links that form the inverted figure eight shape A metal cutting chip compression device is characterized by comprising a pair of members that are pivotably coupled to a member that performs compression forming of metal cutting chips, and which connect the base points of a pair of links forming the figure eight shape to the top points of a pair of links forming the opposite inverted figure eight shape, the pair of members having a right-handed twisted helical groove hole inside one and a left-handed twisted helical groove hole inside the other, and having a helical groove shaft that penetrates both helical groove holes and screws into both helical groove holes on its outer circumference, and a drive device that rotates the helical groove shaft to act in the direction of compressing the metal cutting chips and rotates it in the opposite direction to act in the direction of releasing the compression operation.

3. The metal cutting chip compression device according to claim 1 or 2, wherein the spiral groove holes inside a pair of members connecting the base points of the pair of links forming the figure-eight shape and the top points of the opposing pair of links forming the inverted figure-eight shape are configured by ball-circulating ball screws, and the opposing spiral groove shaft forms a spiral groove shaft into which the ball screw is screwed.

4. A metal cutting chip compression device characterized in that the helical groove shaft is provided with a pair of bevel gears that drive the helical groove shaft at the confluence of a right-handed helical groove and a left-handed helical groove, one of the bevel gears is fitted near the confluence of the right-handed and left-handed helical grooves of the helical groove shaft, and the other bevel gear is configured such that the axis centerline of the bevel gear drive shaft that drives the other bevel gear is perpendicular to the axis centerline of the helical groove shaft, and the bevel gear drive shaft passes through a support member of a compression mechanism that pivotably connects the peaks of the peaks of a pair of links that form the figure eight shape.

5. The metal cutting chip compression device according to claim 4, characterized in that the inner circumference of the other bevel gear drive shaft, which is configured to be perpendicular to the axis centerline of the helical groove shaft, is fitted onto the drive shaft such that the other bevel gear can slide in the direction of the axis centerline of the drive shaft.

6. The metal cutting chip compression device according to claim 5, characterized in that the portion in which the other umbrella-shaped gear is slidably fitted in the direction of the axial centerline of the drive shaft is formed by a ball spline.

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