JP2019058966A - Dispersing discharger - Google Patents

Abstract

To disperse and discharge chips dropped and supplied so as not to be deposited on one spot.SOLUTION: A chip receiver 5 is supported vertically rockable on an oblique position for discharging chips obliquely by the weight of chips when a chip loading amount exceeds a prescribed amount, and on a horizontal position for receiving chips after discharge of chips, and the chip receiver 5 is turned at a prescribed angle by a cam mechanism by using vertical rocking of the chip receiver 5 as power source, to thereby prevent the chips from being deposited on one spot by changing successively a chip discharge position.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a dispersive discharge device that disperses and discharges solid materials such as falling powder particles so as not to deposit in one place.

  It is common practice to charge and store solid substances such as powdery particles in a container. For example, chips generated by cutting with a machine tool are transported by a conveyor and stored in a collection container, or after cutting oil etc. is removed by a centrifugal separator, they are dropped from the centrifugal separator into a collection container It is stored.

  With regard to the treatment of chips, Patent Document 1 describes a chip stock device for temporarily stocking chips that are continuously supplied from a conveyor and dropping them into a recovery container. By temporarily stocking the chips, it is possible to replace the full recovery container. The swarf stock device is a seesaw type using the principle of Kanawashi, so that when a predetermined amount of swarf has accumulated in the saucer, the weight of the swarf causes the saucer to tilt and cause the swarf to fall into the collection container It has become.

Japanese Patent Application Laid-Open No. 11-33869

  By the way, when solid materials such as chips are stored in a container, it is usual for the solid material to fall from the conveyor or the like to the center of the container so that the solid material is not biased in the collection container.

  However, if the solids are allowed to fall to the center of the container, the solids will pile up like a pile at the center of the container over the height of the container, and the conveying means such as a conveyor or the centrifugal separator etc. It interferes with the pre-processing means. For example, in the case of chips discharged from the outlet of the centrifugal separator, the chips clog the outlet and clog the inside of the centrifugal separator, causing failure. Therefore, when the pile of solids grows, it is necessary to break the pile and break it. As solid matter is not always supplied quantitatively to the container, it is also difficult to catch the time when the piles become large, and it is necessary to check frequently, resulting in poor working efficiency.

  In addition, since the fall distance of a solid will become large when the space | interval of a conveyance means or a pre-processing means, and a container is enlarged, it is easy to cause problems, such as scattering of a solid.

  Further, in Patent Document 1 described above, since the supply position of the chips by the stock device is constant only by temporarily stocking the chips, there is no change in that a pile of chips is formed.

  The present invention prevents chips and the like dropped and supplied from the pretreatment unit and the like from being piled up like a mountain.

  In the present invention, in order to solve the above problems, the solid material receiver is swung like the above-mentioned seesaw type stock device to discharge the solid substance, and the swinging position is used to sequentially discharge the solid substance. I made it change.

The dispersion and discharge device disclosed herein is a device that disperses and discharges solid materials such as powder and granular material that are dropped and supplied so as not to be deposited at one location,
A solid receptacle having a receptacle for receiving the solid and an outlet for the solid;
A support mechanism that supports the solid material receptacle so as to be vertically pivotable at a receiving position for receiving the solid material and an inclined position at which the solid material is discharged from the outlet;
And a pivoting mechanism for pivoting the solid material receiver together with the support mechanism about a vertical axis,
The support mechanism supports the solid material receiver to be inclined by the weight of the solid material and to be in the inclined position when the solid load amount exceeds a predetermined amount, and the solid material is discharged. A return mechanism for returning the solid substance receiver from the inclined position to the receptor position,
The pivoting mechanism includes a cam mechanism that pivots the solid material receiver by a predetermined angle using the vertical movement of the solid material receiver as a power source so that the solid material discharge position of the solid material receiver changes. I assume.

  According to this, when the amount of the solid received in the receiving portion of the solid receiver exceeds the predetermined amount, the solid receiver is inclined by the weight of the solid and becomes the inclined position, and the solid is discharged from the discharge port Be done. The solids receiver from which solids are discharged returns to the receiving position for solids by the return mechanism. The solid material receptacle is pivoted by a cam mechanism at a predetermined angle about the vertical axis as the receptacle is pivoted between the receiving position and the inclined position. Therefore, the next time the solid is discharged from the solid receptacle, the discharge position is shifted. Therefore, it is avoided that solid matter is piled up in one place, the pile of solid matter is broken down, the need for straightening work is eliminated, or the amount of work is reduced.

In one embodiment, the pivoting mechanism comprises a cylindrical body pivotally supporting the solid receptacle together with the support mechanism,
The cam mechanism is coupled to the fixed object receiver so as to move up and down with a cam groove formed on the outer peripheral surface of the cylindrical body and the solid object receiver, and is engaged with the cam groove. And a cam pin for moving the cam groove,
The cam groove is provided with an inclined guide groove extending in the up and down direction by inclining the outer peripheral surface of the cylindrical body so that the solid material receiver pivots with the support mechanism as the cam pin moves up and down.

  According to this, although the cam pin moves up and down with the rocking of the solid material receiver, when the cam pin moves the inclined guide groove of the cam groove with the vertical movement, the solid material carrier turns. . That is, the discharge position of the solid can be changed by a predetermined angle by a simple cam mechanism including the cam groove and the cam pin.

  In one embodiment, the solid material receptacle includes a door member for closing the discharge port, and an opening / closing mechanism for opening the door member when the solid substance receptacle is in the inclined position from the receiving position. .

  According to this, it is avoided that the solid material receptacle is inclined and discharged before the predetermined amount of solid material is accumulated in the solid material receptacle. That is, there is a concern that the cam mechanism may not reliably interlock with the swinging of the solid material receiver when the solid material is discharged and returned to the receiving position in a state where the inclination of the solid material receiver is small, according to the embodiment. Since the solid receptacle tilts to a predetermined inclined position, it is advantageous to ensure that the solid receptacle can be pivoted by the cam mechanism.

  According to the present invention, since the solid material receiver pivots and the discharge position of the solid material changes in conjunction with the swinging of the solid material receiver, the solid material can be dispersed and discharged, and a pile of solid materials can be obtained. It is possible to reduce or omit the breaking work.

The whole block diagram of a chip | tip dispersion | distribution discharge system. The side view of a chip | tip dispersion | distribution discharge device. The perspective view from the upper right of the front of a chip dispersion discharge device. The perspective view of the lower part of the chip dispersion discharge device. The front view which shows a part of cam mechanism. The perspective view which shows the attachment structure of a hook. The perspective view from the upper left of the front of a chip dispersion discharge device. The perspective view from the upper right which shows the state which the door member of the chip | tip dispersion | distribution discharge device opened. The perspective view of the front left portion of the chip dispersion discharge device.

  Hereinafter, an embodiment for carrying out the present invention will be described based on the drawings. The following description of the preferred embodiments is merely exemplary in nature and is not intended to limit the invention, its applications or its uses.

  The dispersion and discharge device according to the present embodiment is a device that disperses and discharges chips as solid matter generated by machining (broaching).

<Overall configuration>
In the overall configuration of the chip dispersion discharge system shown in FIG. 1, reference numeral 1 denotes a centrifugal separator into which chips generated by broaching are introduced by a hopper 2. A dispersing and discharging device 3 is provided below the centrifugal separator 1, and a box-shaped chip collection container 4 is provided below the dispersing and discharging device 3. Cutting oil (coolant) adheres to chips generated by broaching. The chips adhering to the cutting oil are separated from the cutting oil by the centrifugal separator 1 and dropped and supplied to the chip dispersion discharging device 3. The chips are dispersed and intermittently discharged by the dispersing and discharging device 3 not at the central position of the chip collection container 4 but around it.

<Chip dispersion discharge device>
As shown in FIG. 2, the swarf dispersive discharge device 3 supports the swarf receptacle (solids receptacle) 5 for receiving swarf falling from the centrifugal separator 1 and the swarf receptacle 5 so as to be able to swing up and down. A support mechanism 6 and a pivoting mechanism 7 for pivoting the chip receiver 5 together with the support mechanism 6 about a vertical axis are provided.

  As shown in FIG. 3, the swarf receptacle 5 includes a ship-bottom-shaped receptacle 11 for receiving swarf, and a swarf outlet 12 is formed at one end (front end) of the receptacle 11. The door member 13 is provided in. As shown in FIG. 2, a bottom plate 14 extending in the longitudinal direction of the chip receiver 5 is fixed to the lower surface of the chip receiver 5.

[Supporting mechanism 6]
As shown in FIG. 2, the support mechanism 6 includes a base plate 16 pivotally supported on the cylindrical body 15 of the pivot mechanism 7 about a vertical axis, and the machine frame 20 is fixed to the base plate 16. A pillar 17 is erected on the base plate 16, and at the upper end of the pillar 17, the rear end portion (portion closer to the rear end than the center of the chip receiver 5) of the bottom plate 14 of the chip receiver 5 It is connected by a horizontal axis 18 orthogonal to the longitudinal direction of the receiver 5. Thereby, the chip receiver 5 vertically swings around the horizontal axis 18 to a horizontal receiving position for receiving the chips and an inclined position where the chips are inclined downward so as to be discharged from the discharge port 12 It is possible (see the two-dot chain line in FIG. 2).

  A return spring 21 is stretched between a portion of the bottom plate 14 of the chip receptacle 5 closer to the rear end than the horizontal shaft 18 and a bracket 19 projecting rearward from the base plate 16. The return spring 21 constitutes a return mechanism for returning the chip receiver 5 from the inclined position to the receiving position. The chip receiver 5 swings to the inclined position against the bias of the return spring 21 when the loaded amount of chips exceeds a predetermined amount.

[Pivot mechanism 7]
As shown in FIG. 2, the pivoting mechanism 7 is provided with a cam mechanism comprising a cam groove 23 and a cam pin 24 engaged with the cam groove 23 to move the cam groove. The pivoting mechanism 7 pivots the chip receiver 5 together with the support mechanism 6 by a predetermined angle by the cam mechanism using the vertical movement of the chip receiver 5 as a power source. The details will be described below.

  The cam groove 23 is formed on the outer peripheral surface of the above-described cylindrical body 15 that rotatably supports the base plate 16. The cam groove 23 extends in a zigzag manner along the entire circumference of the outer peripheral surface of the cylindrical body 15 in the circumferential direction.

  The cam pin 24 is horizontally provided at the lower end of the rod 25 connected to the bottom plate 14 of the chip receiver 5 and extending downward. The rod 25 extends up and down through a guide 26 fixed on the base plate 16 on the front side of the support column 17, and the guide 26 guides vertical movement. The rod 25 and the bottom plate 14 of the chip receiver 5 are connected via a link 27.

  Accordingly, the cam pins 24 move up and down as the chip receiver 5 moves up and down. The cam groove 23 engaged with the cam pin 24 is zigzag so that the chip receiver 5 turns by a predetermined angle along with the vertical movement.

  That is, the cam groove 23 guides the cam pin 24 upward when the chip receiver 5 pivots upward, and downward guides the cam pin 24 when the chip receiver 5 pivots downward. Guide grooves 29 are alternately provided in the circumferential direction of the cylindrical body 15. And when the chip receiver 5 swings downward, the downward guide groove 29 inclines such that the outer peripheral surface of the cylindrical body 15 is lowered in the pivoting direction so that the chip receiver 5 pivots by a predetermined angle It is a guide groove.

  FIG. 5 shows in detail the upper side wall 23a and the lower side wall 23b forming the cam groove 23, and the engaging portion 30 of the cam pin 24 engaged with the cam groove 23. As shown in FIG.

  The lower side wall 23a of the cam groove 23 is provided with a vertical surface forming an upper guide groove 28 and an inclined surface forming a lower inclined guide groove 29. The vertical surface and the inclined surface form an acute angle portion 31. The upper side wall 23b of the cam groove 23 has a surface forming the upper guide groove 28 rising substantially parallel to the vertical surface of the lower side wall 23b, and is inclined in the turning direction T from a portion slightly higher than the acute angle portion 31. The upper end 32 of the upper portion 32 is substantially flat (or arcuate). The top portion 32 is positioned slightly ahead of the turning direction T from a line L extending upward from the position of the acute angle portion 31.

  Due to this positional displacement, when the engaging portion 30 of the cam pin 24 is lowered along with the downward movement of the chip receiver 5 from the top portion 32, it is easy to get over the acute angle portion 31 and get on the inclined surface of the lower side wall 23b. Become. That is, the engaging portion 30 of the cam pin 24 can be easily guided to the inclined surface of the lower side wall 23 b, which is advantageous in reliably turning the chip receiver 5.

  Further, the circumferential surface of the engaging portion 30 of the cam pin 24 is constituted by an arc-shaped surface extending from the rear side surface to the top surface in the turning direction T and two flat surfaces intersecting each other following both ends of the arc-shaped surface. ing. When the engaging portion 30 of the guide pin 24 is guided by the top portion 32 of the cam groove 23, the angle portion 33 formed by the flat surface is the front of the turning direction T from the line L extended upward from the position of the acute angle portion 31. It can be positioned slightly offset to

  Due to this positional displacement, when the engaging portion 30 of the cam pin 24 is lowered along with the downward movement of the chip receiver 5 from the top portion 32, it is easy to get over the acute angle portion 31 and get on the inclined surface of the lower side wall 23b. Therefore, it is further advantageous in reliably turning the chip receiver 5.

  In the present embodiment, when the chip receiver 5 is returned from the inclined position to the receiving position by the return spring 21, the return movement is stopped by the engagement portion 30 of the cam pin 24 contacting the top portion 32 of the cam groove 23. That is, the engaging portion 30 of the cam pin 24 and the top portion 32 of the cam groove 23 function as a stopper for positioning the chip receiver 5 at the receiving position.

[Opening and closing mechanism of the door member 13]
As shown in FIGS. 2 and 3, the bottom frame portion 35 b of the concave frame 35 is fixed to the front end portion of the bottom plate 14 of the chip receiver 5. Both side frames 35 a, 35 a of the concave frame 35 stand on both sides of the front end of the chip receiver 5. The door member 13 has a semicircular disk shape corresponding to the semicircular discharge port 12 of the chip receiver 5, and side plates 36 and 37 extending in the vertical direction are fixed to upper end side portions of the door member 13. The side plates 36 and 37 of the door member 13 are rotatably supported at the upper ends of the side frames 35 a of the concave frame 35 by a horizontal shaft 38 orthogonal to the longitudinal direction of the chip receiver 5.

  The lower end portion of one side plate 36 of the door member 13 is engaged with the bottom frame portion 35b of the concave frame 35 so that the door member 13 keeps the discharge port 12 of the chip receiver 5 closed. The hook 41 is provided.

  As shown in FIG. 6, the hook 41 is rotatably supported by the side plate 36 by a horizontal shaft 42 orthogonal to the longitudinal direction of the chip receiver 5. The hook 41 is provided with a hook-shaped engaging portion 41a that rotates from the upper side and engages with the front edge of the bottom frame portion 35b of the concave frame 35, and the engagement is achieved by rotating the hook 41 upward. Get out. The side plate 36 is provided with a stopper 43 that is engaged when the hook 41 tries to rotate by its own weight. The stopper 43 prevents the hook 41 from pivoting beyond the pivoting position where it engages with the bottom frame portion 35b.

  At the tip of the hook 41, a guide portion 41b is provided which abuts on the rear edge of the bottom frame 35b of the concave frame 35 when the door member 13 is rotated in the direction to close the discharge port 12 of the chip receiver 5. ing. As the guide portion 41b slides on the rear edge of the bottom frame portion 35b, the engaging portion 41a is engaged with the front edge of the bottom frame portion 35b while the hook 41 pivots upward. The downward rotation of the hook 41 is restricted by the stopper 43, so that the guide portion 41b of the hook 41 abuts on the rear edge of the bottom frame portion 35b when the door member 13 is rotated in the closing direction.

  As shown in FIG. 3, in the machine frame 20 fixed to the base plate 16, when the chip receiver 5 swings to the inclined position for discharging chips, the bottom frame portion 35b of the concave frame 35 is moved. A hook rest 44 is provided to release the engagement of the hooks 41. The hook 41 abuts against the hook contact 44 to pivot upward, and the engagement of the hook 41 with the bottom frame portion 35 b is released. By releasing this engagement, the door member 13 is opened.

  As shown in FIG. 7, a weight 45 is fixed to the other side plate 37 of the door member 13 for pivoting the door member 13 in the opening direction when the engagement of the hooks 41 is released.

  The concave frame 35, the horizontal shaft 38, the hook 41 and the weight 45 constitute an opening / closing mechanism of the door member 13.

[Operation, etc. of the dispersion discharge device]
As indicated by a solid line in FIG. 2, the chip receiver 5 is in the horizontal receiving position by the bias of the return spring 21 when the chips are not mounted. Further, as shown by a solid line in FIG. 3, the hook 41 is engaged with the bottom frame portion 35 b of the concave frame 35, and the door member 13 closes the discharge port 12 of the chip receiver 5. Further, the cam pin 24 of the turning mechanism 7 is located at the top portion 32 of the cam groove 23 shown in FIG.

  The chip receiver 5 receives the chips falling from the centrifugal separator 1, and when the load amount of chips exceeds a predetermined amount, the outlet 12 side is lowered and inclined against the bias of the return spring 21. Along with this tilting, the rod 25 connected to the bottom plate 14 of the chip receptacle 5 moves downward, and the cam pin 24 descends from the top portion 32. Since the position of the top portion 32 is shifted forward in the turning direction from the position line L of the acute angle portion 31 and the corner of the cam pin 24 is shifted forward in the turning direction from the line L, the cam pin 24 contacts the inclined surface of the inclined guide groove 29 become. Then, the cam pin 24 is guided by the inclined surface to move the inclined guide groove 29 forward in the turning direction. By this guidance, the chip receptacle 5 turns while tilting.

  When the cam pin 24 reaches the lowermost end of the inclined guide groove 29, the chip receiver 5 is turned by a predetermined angle to be in the inclined position (see the dashed line in FIG. 2) for discharging the chips. When the chip receiver 5 is in the inclined position, as shown in FIG. 3, the hooks 41 hit the hook contacts 44 of the machine frame 20 and rotate upward, and as shown in FIG. 8, the bottom frame portion 35b of the concave frame 35 The engagement with is released. By this engagement release, as shown in FIG. 9, the weight 45 is pivoted downward, and the door member 13 is opened. As a result, the chips of the chip receiver 5 are discharged from the discharge port 12 to a point out of the center of the chip collection container 4.

  The chip receiver 5 returns to the horizontal receiving position by the biasing of the return spring 21 when the chip discharge causes no load. Along with this, the door member 13 rotates in the closing direction, and the hook 41 engages with the bottom frame portion 35 b of the concave frame 35, and the door member 13 closes the discharge port 12 of the chip receiver 5. On the other hand, the cam pin 24 of the turning mechanism 7 ascends the guide groove 28 and is positioned at the top of the cam groove 23 (the top next to the top 32 previously positioned) 32.

  Next, the chip receiver 5 receives the chips from the centrifugal separator 1 and tilts from the horizontal receiving position when a predetermined amount of chips is collected again. Next, since the cam pin 24 moves on the inclined guide groove 29 next to the previous inclined guide groove 29, the chip receiver 5 further turns by a predetermined angle until it reaches the inclined position.

  Therefore, when the hook 41 is disengaged and the door member 13 is opened, the chips are discharged to a position deviated from the previous discharge position in the chip collection container 4 by a predetermined angle. Thus, since the chips are dispersed and discharged around the central portion of the chip collection container 4, piles of chips at one position of the chip collection container 4 can be avoided. Therefore, chip leveling work becomes unnecessary, or the amount of leveling work is reduced and work efficiency of chip processing becomes high.

  In addition, although the said embodiment relates to the dispersion | distribution discharge of a chip | tip, the said dispersion | distribution discharge device can be used for the dispersion | distribution discharge | emission of various solid substances, such as powder, crushed stone, and coal.

1 Centrifugal separator 3 Chip dispersion discharge device (solids dispersion discharge device)
4 Chip collection container 5 Chip receiver (solids receiver)
Reference Signs List 6 support mechanism 7 turning mechanism 11 receiving portion 12 discharge port 13 door member 15 cylindrical body 21 return spring (return mechanism)
23 Cam groove (cam mechanism)
24 cam pin (cam mechanism)
29 Inclined guide groove 35 Concave frame (constitutes door member opening and closing mechanism)
38 Horizontal axis (constitutes door member opening and closing mechanism)
41 Hook (constitutes door member opening and closing mechanism)
45 Weight (constitutes door member opening and closing mechanism)

Claims (3)

A dispersive discharge device that disperses and discharges solid materials such as powder and granular materials that are dropped and supplied so as not to deposit in one place,
A solid receptacle having a receptacle for receiving the solid and an outlet for the solid;
A support mechanism that supports the solid material receptacle so as to be vertically pivotable at a receiving position for receiving the solid material and an inclined position at which the solid material is discharged from the outlet;
And a pivoting mechanism for pivoting the solid material receiver together with the support mechanism about a vertical axis,
The support mechanism supports the solid material receiver to be inclined by the weight of the solid material and to be in the inclined position when the solid load amount exceeds a predetermined amount, and the solid material is discharged. A return mechanism for returning the solid substance receiver from the inclined position to the receptor position,
The pivoting mechanism includes a cam mechanism that pivots the solid material receiver by a predetermined angle using the vertical movement of the solid material receiver as a power source so that the solid material discharge position of the solid material receiver changes. Distributed discharge device. In claim 1,
The pivoting mechanism comprises a cylindrical body pivotally supporting the solid material receiver together with the support mechanism,
The cam mechanism is coupled to the fixed object receiver so as to move up and down with a cam groove formed on the outer peripheral surface of the cylindrical body and the solid object receiver, and is engaged with the cam groove. And a cam pin for moving the cam groove,
The cam groove includes an inclined guide groove extending in the up and down direction by inclining the outer peripheral surface of the cylinder so that the solid material receiver pivots with the support mechanism as the cam pin moves up and down. Distributed discharge device. In claim 1 or claim 2,
The solid material receiver includes a door member for closing the discharge port, and an opening / closing mechanism for opening the door member when the solid material receiver is in the inclined position from the receiving position. Distributed discharge device.

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