JP2013154368A - Waste storing device and punch press - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a waste storing device that prevents waste from being caught between a scrap box and a lid to allow for a constant, preferable waste suction operation.SOLUTION: A waste storing device (KK) that sucks and collectively stores waste (K) generated in processing includes: a scrap box (71) for storing the waste; a waste chute (13) connected to the scrap box (71) at one end side thereof to lead the waste (K) to the scrap box (71) from the other end side thereof; a lid (72) for opening and closing one lateral surface side of the scrap box (71); and a waste visor (76) having a slope of which one lateral surface side is lowered inside the scrap box (71), and configured to stride over the scrap box (71) and the lid (72) so that a tip thereof is placed in a position of entrance into the lid (72) while the lid (72) closes the one surface side.

Description

  The present invention relates to a residue storage device and a punch press. In particular, it has a scrap box and a lid portion that opens and closes with respect to the scrap box, and sucks and stores the waste generated by processing, and also opens a lid portion to discharge the accumulated waste to the outside. The present invention relates to a waste storage device and a punch press including the same.

Patent Document 1 discloses a waste storage device that sucks and accumulates waste generated by punch press processing in a scrap box.
The waste container device described in Patent Document 1 includes a lid portion that is opened when the waste accumulated in the scrap box is discharged to the outside.
In this structure, when the lid is closed after the waste is discharged, there is a case where the waste is sandwiched between the scrap box and the lid and the negative pressure during suction is insufficient. Therefore, this waste storage device is provided with a sensor that detects negative pressure in a state where the lid is closed, and when the negative pressure detected by this sensor is abnormal, the waste is sandwiched and the lid is not completely closed. Assuming that the lid is opened and closed, air is injected to blow off the residue. A debris removing means for this operation is provided.

JP 2007-38230 A

  By the way, the waste container device described in Patent Document 1 is effective in taking a coping measure when a problem that the negative pressure becomes abnormal occurs. Therefore, the occurrence of the problem that the negative pressure becomes abnormal due to the clogging being sandwiched and the lid part not being completely closed is eliminated fundamentally, and the opening and closing operation of the lid part for blowing off the sensor and the waste is unnecessary. There is room for improvement, and its realization is desired.

  Therefore, the problem to be solved by the present invention is that the opening and closing operation of the lid for blowing off the sensor and waste is unnecessary, and the waste suction operation is always good without the waste being caught between the scrap box and the lid. An object of the present invention is to provide a waste storage device and a punch press including the same.

In order to solve the above problems, the present invention has the following configuration.
1) A dregs storage device for sucking and accumulating dregs (K) generated by processing,
A scrap box (71) for containing the waste,
One end side is connected to the scrap box (71), and the dash (K) leads the scrap box (71) from the other end side to the scrap box (13),
A lid (72) for opening and closing one side of the scrap box (71);
In the scrap box (71), the scrap box (71) and the lid portion have a surface inclined so that the one side surface is lowered and the lid portion (72) is closed on the one surface side. (72), and a visor (76) provided so that the tip is located at the position where it entered the lid (72),
A waste container (KK) characterized by comprising:
2) The scrap storage device according to 1), wherein the scrap box (71) includes a first air blow nozzle (77) that injects air (AR77) toward the casvisor (76). (KK).
3) The lid portion (72) has at least a bottom portion (79a) overlapping the tip portion of the casvisor (76) in a state where the one surface side is closed, and the lid portion (72) and the scrap box ( 1) or 2) having a receiving visor (79) provided so that the front end portion is in a position where it enters the scrap box (71). Containment device (KK).
4) The waste container according to 3), wherein the lid portion (72) includes a second air blow nozzle (80) for injecting air (AR80) toward the receiving visor (79). Device.
5) In the state where the lid (72) is closed on the one surface side, the cas visor (76) and the receiving visor (79) form a scum reservoir (KD) for accumulating and storing the scum (K). The waste storage device (KK) according to 3) or 4), which is configured as described above.
6) The upper surface (79a1) of the bottom portion (79a) of the receiving visor (79) is an inclined surface or vertical surface where the tip end side of the receiving visor (79) is lowered when the lid portion (72) is fully opened. The waste container device (KK) according to any one of 3) to 5), characterized in that:
7) A punching section (PK) that has a die holder (2) that holds the die (D) and performs punching;
A waste container (KK) according to any one of 1) to 6);
With
The scrap box (71) has an opening (74a) through which internal air is sucked by a negative pressure generator (BM), while the other end of the cashew (13) is the die of the die (D). It is connected to the die holder (2) side so as to communicate with the hole (Da),
When the air is sucked from the opening (74a), the inside of the scrap box (71) and the cash shooter (13) becomes a negative pressure, and the scrap (K) generated by the punching process becomes the scrap. A punch press (51) configured to be sucked and guided into a box (71).

  According to the present invention, there is an effect that the waste suction operation is always performed satisfactorily without waste remaining between the scrap box and the lid.

It is a figure for demonstrating the structure in the Example of the punch press of this invention. It is a perspective view for demonstrating the principal part in the Example of the dregs accommodation apparatus of this invention. It is sectional drawing which shows the open state of the residue storage part in the Example of the residue storage apparatus of this invention. It is sectional drawing which shows the closed state of the residue storage part in the Example of the residue storage apparatus of this invention. It is a perspective view for demonstrating the cas visor in the Example of the sac accommodation apparatus of this invention. It is sectional drawing which shows the accumulation state of the waste group in the Example of the waste storage apparatus of this invention. It is sectional drawing for demonstrating discharge | emission of the waste group in the Example of the waste storage apparatus of this invention.

Embodiments of the present invention will now be described with reference to FIGS.
FIG. 1 is a view for explaining a schematic configuration of a main part in an embodiment of a punch press according to the present invention.

  The punch press 51 of the embodiment is a turret punch press. In FIG. 1, a lower turret 1 rotating around a turret center TC, a die holder 2 attached to the lower turret 1, and a die held by the die holder 2 are used. A punching portion PK configured to include D, a disk support 3 that supports the lower surface of the lower turret 1 when a punch (not shown) is pressed, and a frame 4 to which the disk support 3 is attached. A workpiece W to be punched by the punching section PK of the press 51 is shown.

In the die D, an enlarged opening Db is formed below the die hole Da. Below the opening Db, an air passage 20 provided in the die holder 2 and an air passage 21 provided in the lower turret 1 are provided correspondingly.
Further, an air passage 3 a provided in the disk support 3 and an air passage 4 a provided in the frame 4 are provided below the air passage 21.
One end side of the cashew 13 is connected to the air passage 4a. The caster 13 is connected to the scrap box 71 of the cask storage device KK through a vertical passage 13a extending downward from one end side and an inclined passage 13b inclined obliquely downward.
The caster 13 is a guide path that guides the waste K (see FIG. 6) generated by processing from one end side to the scrap box 71 on the other end side by suction.

The waste storage device KK opens and closes one surface side (the right side in FIG. 1) of the scrap box 71 by rotating within a predetermined angular range around the substantially box-shaped scrap box 71 and the rotation axis CL72 (in the direction of arrow DR1). A lid 72 that rotates, an air cylinder 73 that rotates the lid 72, a negative pressure generator BM that generates a negative pressure for sucking the residue K (blower motor, suction pump, etc.), and one end side of the scrap box 71 It has a duct 74 that opens as an opening 74a on a side surface (for example, the back side of the paper surface of FIG. 1) and has the other end connected to the negative pressure generator BM.
A conveyor device CV is disposed below the scrap box 71.
Hereinafter, the scrap box 71 and the lid part 72 are also referred to as a waste storage part KS.

In the above-described configuration, when the die hole Da is closed with the workpiece W, the lid 72 is closed and the negative pressure generator BM is driven, whereby air is sucked from the opening 74a, and scrap is generated. The suction path KR composed of the box 71, the cashew 13, the air passages 4a, 3a, 21, 20, the opening Db, and the die hole Da is in a sealed negative pressure state.
Therefore, the residue K generated when the workpiece W is punched is sucked from the die hole Da side toward the scrap box 71 and accommodated in the residue accommodating portion KS.
As the number of machining operations increases, the generated residue K accumulates in the residue storage part KS to form a residue group KG (see FIG. 6). When the amount of the waste group KG reaches a predetermined amount (or when it is determined that the amount to be discharged as a guide has been reached), the air cylinder 73 is operated to open the lid portion 72. Thereby, the waste group KG in the waste storage part KS falls downward and is discharged. In FIG. 1, the belt CVa of the conveyor device CV is waiting on the lower side, and the waste group KG falls on the belt CVa.
The waste group KG dropped on the belt CVa is conveyed and discharged to the outside by the operation of the conveyor device CV.

Next, the details of the scrap box 71 and the lid part 72 that constitute the waste container KS will be described with reference to FIGS.
FIG. 2 is a perspective view of the waste container KS with the lid 72 opened.
3 is a cross-sectional view in the state shown in FIG. 2, and FIG. 4 is a cross-sectional view in a state in which the lid portion 72 is closed.
FIG. 5 is a perspective view showing the distal end portion of the cas visor 76 and the receiving visor 79 (both will be described later) in a state where the lid portion 72 is closed.
In FIG. 2, the conveyor device CV is omitted.

First, the structure of the waste container KS will be described in detail with reference mainly to FIGS.
The scrap box 71 has a rectangular frame-shaped side wall portion 71b and is generally formed in a box shape. Further, the end surface 71t on one surface side opened and closed by the lid portion 72 is formed as an inclined surface, and the bottom surface opposite to the end surface 71t is closed by the bottom wall portion 71c except for the passage portion of the cashew 13. It is.
The end surface 71t is inclined so that the lower side of the end surface 71t is close to the bottom wall portion 71c.
Further, a seal member 75 is attached to the end surface 71t in order to improve adhesion when the lid portion 72 is closed.

The caster 13 and the scrap box 71 include a bottom portion 76a extending obliquely downward from the die D side so as to straddle both, and a side wall portion 76b raised at approximately 90 ° on both sides of the bottom portion 76a. And a casvisor 76 having a portion 76c.
The cas visor 76 is a member having a U-shaped cross section formed by bending a thin plate, for example.
The end portion 76t of the cas visor 76 is located at a position protruding toward the lid portion 72 by a predetermined protrusion amount d76 from the surface 75s of the seal member 75 attached to the end surface 71t of the scrap box 71.

One end side of the duct 74 is connected to one side wall 71b1 of the side wall 71b, and serves as an opening 74a for sucking air in the scrap box 71.
A rod-shaped air blow nozzle 77 that faces the upper end of the opening 74a in parallel with the upper surface 76a1 of the bottom 76a of the casvisor 76 and extends in the width direction of the bottom 76a (the direction orthogonal to the plane of FIG. 3). Is provided.
The air blow nozzle 77 is connected to the air supply device AR by a hose (not shown) so that the air AR 77 (see FIG. 7) can be ejected in a strip shape along the width direction of the bottom portion 76a toward the bottom portion 76a. It has become.

On the other hand, a rod 73 a of an air cylinder 73 is connected to the back wall 72 h of the lid 72.
The lid portion 72 is formed in a flat box shape with the back wall 72h as a bottom.
A seal member 78 that is in contact with the surface 75s of the seal member 75 on the scrap box 71 side is attached to the end surface 72t on the opening side in a state where the lid portion 72 is closed with respect to the scrap box 71. The seal member 78 may not be attached. In the following description, () is attached to the description when it is not attached.

A receiving visor 79 having a U-shaped cross section corresponding to the cas visor 76 is attached to the inside of the lid portion 72. As will be described later, the receiving visor 79 is a visor that receives the residue K, and has a function as a cas visor.
The receiving visor 79 includes a bottom portion 79a, side wall portions 79b and 79c (see FIG. 5 only for 79c) raised at approximately 90 ° on both sides of the bottom portion 79a, a back wall portion 79d on the back wall 72h side, And is formed by bending a thin plate or the like.
The bottom portion 79a and the back wall portion 79d are connected to each other via an inclined portion 79e inclined in a C-plane shape with respect to the surfaces of both portions. The inclination angle of the inclined portion 79e is set so that the direction orthogonal to the inclined portion 79e is slightly downward from the horizontal when the lid portion 72 is fully opened.
The end 79t of the receiving visor 79 protrudes by a predetermined amount from the surface 78s of the seal member 78 attached to the end surface 72t of the lid 72 (from the end surface 72t of the lid 72 when the seal member 78 is not attached). It is in a position protruding by an amount d79.
The receiving visor 79 is in a state where the lid portion 72 is closed with respect to the scrap box 71, and even if the receiving visor 79 is in contact with the cass visor 76 or has a gap within a range that does not hinder the opening and closing of the lid portion 72. It is arranged and formed so that there are few.

  Further, in the state in which the lid portion 72 is closed, the surface 75s of the seal member 75 and the surface 78s of the seal member 78 (the end surface 72t of the lid portion 72 when the seal member 78 is not attached) are in contact. The tip of the cas visor 76 with respect to the position of the part TS enters the inside of the lid part 72 beyond the position of the contact part TS. The receiving visor 79 has entered the scrap box 71 at the tip side beyond the position of the contact part TS. In other words, with the lid 72 closed, the cas visor 76 and the receiving visor 79 are disposed so as to straddle the scrap box 71 and the lid 72.

A rod-shaped air blow nozzle 80 extending in the width direction of the bottom 79a (the direction orthogonal to the plane of FIG. 3) is provided inside the lid 72 so as to be parallel to the upper surface 79a1 of the bottom 79a of the receiving visor 79. ing.
The air blow nozzle 80 is connected to the air supply device AR via a coupler 81 attached to the back wall 72h of the lid portion 72, and is generally in the form of a strip extending mainly in the width direction of the bottom portion 79a toward the back wall portion 79d. Air AR80 (see FIG. 7) can be ejected to the air.

Next, suction of the waste K and discharge from the waste storage part KS by the waste storage device KK will be described with reference to FIGS.
FIG. 6 is a view showing a state in which the lid 72 corresponding to FIG. 4 is closed. FIG. 6 shows a waste storage device KK that is processing the workpiece W with a punch or the like.
FIG. 7 is a view showing a state in which the lid 72 corresponding to FIG. 3 is opened. 6 and 7 show the flow of the residue K and air A, and the like.

In FIG. 6, the lid part 72 is closed, and the air inside the scrap box 71 is sucked out from the opening part 74a by the operation of the negative pressure generator BM (see FIG. 1).
Due to this suction, the suction path KR is in a negative pressure state, and the waste K generated by the processing is sucked into the scrap box 71 and accommodated in the waste accommodating part KS.
Each time processing is performed, the generated residue K is accommodated in the scrap box 71, and is thus gradually accumulated to form a residue group KG. The residue group KG is accumulated in a space surrounded by the bottom portion 76a and the side wall portions 76b and 76c of the cas visor 76 and the bottom portion 79a, side wall portions 79b and 79c, the inclined portion 79e, and the back wall portion 79d of the receiving visor 79. A space in which the waste group KG is stored is referred to as a waste reservoir KD.

  When the amount of the waste group KG reaches a predetermined amount (or a guide amount for discharge), the operation of the negative pressure generator BM is stopped and the air cylinder 73 is operated to contract the rod 73a as shown in FIG. The lid 72 is rotated in the opening direction around the rotation axis CL72 (arrow DR2 direction). Thereby, the cover part 72 will be in the open state. Moreover, the conveyor apparatus CV is operated and it is set as a conveyance state.

When the lid 72 is opened, the residue group KG falls on the belt CVa that is an endless circulation member of the conveyor device CV.
Specifically, the residue K71 accumulated in the residue visor 76 on the scrap box 71 side slides and falls mainly on the upper surface 76a1 of the inclined bottom portion 76a.
Further, the residue K72 accumulated in the receiving visor 79 on the lid portion 72 side slides and falls on the upper surface 79a1 of the bottom portion 79a that is inclined downward toward the opening side mainly with the opening operation of the lid portion 72.

Here, since the visor 76 is provided so as to protrude from the surface 75s of the seal member 75 corresponding to the contact portion TS, the cass K71 falls toward the lower belt CVa without contacting the seal member 75. .
Further, the receiving visor 79 is provided so as to protrude from the surface 78s of the seal member 78 corresponding to the contact portion TS (from the end surface 72t of the lid portion 72 when the seal member 78 is not attached). The residue K72 falls toward the lower belt CVa without contacting the seal member 78.
Further, in the state in which the lid portion 72 is opened, the surface 75s of the seal member 75 and the surface 78s of the seal member 78 (the end surface 72t of the lid portion 72 when the seal member 78 is not attached) are shown in FIG. The angle of the contact portion TS and the open position angle of the lid portion 72 are set so that the distance between the two becomes a substantially eight-letter shape with the upper side narrowed and the lower side widened. As a result, there is almost no possibility that the residue K71 and the residue K72 will come into contact with the mating seal member 78 (or the lid 72 when the seal member 78 is not attached) and the seal member 75, respectively, with the momentum of dropping. .

Further, the waste container KK ejects air AR 77 from the air blow nozzle 77 provided in the scrap box 71 toward the bottom 76 a of the cas visor 76 when discharging the waste group KG.
The air AR77 toward the bottom 76a hits the bottom 76a and flows downward along the inclined upper surface 76a1. Further, part of the air AR 77 flows in the width direction on the upper surface 76a1 and, after hitting the side wall portions 76b and 76c, similarly flows downward along the side wall portions 76b and 76c.
Accordingly, even if there is a residue K71 that does not fall naturally while adhering to the bottom portion 76a and the side wall portions 76b and 76c of the casvisor 76 for some reason (such as the influence of press oil), the residue K71 is separated from the casvisor 76 by the flow of the air AR77. Detach and fall toward belt CVa.

Further, the waste container KK ejects air AR80 from the air blow nozzle 80 provided in the lid 72 toward the inclined portion 79e of the receiving visor 79 when the waste group KG is discharged.
The air AR 80 directed toward the inclined portion 79e hits the inclined portion 79e and flows downward along the inclined inner surface 79e1 through the bottom portion 79a. A part of the air AR 80 flows in the width direction on the inner surface 79e1 of the inclined portion 79e, and similarly flows downward along the side wall portions 79b and 79c after hitting the side wall portions 79b and 79c.
Therefore, even if there is a residue K72 that does not fall naturally while adhering to the bottom 79a, the side walls 79b, 79c, and the inclined portion 79e of the receiving visor 79 for some reason (the influence of press oil, etc.), the residue K72 remains in the air AR80. Detaches from the receiving visor 79 by the flow of, and falls toward the belt CVa.

  The timing at which the air AR77 and AR80 are ejected from the air blow nozzles 77 and 80 is desirably after the lid 72 is rotated in the opening direction and the seal members 75 and 78 are sufficiently separated from each other. By performing the ejection after the seal members 75 and 78 are sufficiently separated from each other, even if the residue K greatly deviates from the path of the natural fall due to the flow of the air AR77 and AR80, the seal member 75 rises in the air. Alternatively, the possibility of contact with the seal member 78 (or the lid 72 when the seal member 78 is not attached) is further reduced.

  The receiving visor 79 may not necessarily be provided when the waste group KG accumulated on the lid portion 72 side is extremely small due to the setting of the inclination angle of the contact portion TS and the internal shape of the lid portion 72. . However, a part of the seal member 78 (the end surface 72t of the lid 72 when the seal member 78 is not attached) is hidden by the receiving visor 79 protruding from the contact portion TS, and the seal member 78 (the seal member 78 is attached). If not, the possibility of the scrap K71 on the side of the scrap box 71 coming into contact with the lid portion 72) can be reduced, and therefore it is desirable that the receiving visor 79 is provided.

  The air blow nozzles 77 and 80 are not necessarily provided, but it is desirable that at least one of them is provided. This is because the problem that the waste K is sandwiched between the scrap box 71 and the lid portion 72 due to the ejection of the air AR77 or the air AR80 can be prevented to a higher degree.

  The members forming the waste reservoir KD, that is, the bottom 76a and the side walls 76b and 76c of the cas visor 76, the upper surface 79a1 of the bottom 79a of the receiving visor 79, the inner surfaces of the side walls 79b and 79c, and the inner surface 79e1 of the inclined portion 79e. The angle of the inner surface of the back wall portion 79d is inclined so that the residue K can naturally fall to the lower side of the residue storage device KK even if the residue K is attached to each surface in the fully open state of the lid portion 72. Or it is formed vertically.

As described above, the waste container KK includes the air blow nozzles 77 and 80, and the waste K remaining in the waste reservoir KD inside the scrap box 71 and the lid portion 72 without being naturally dropped can be removed from the waste reservoir KD. Air AR77 and 80 to be discharged after being separated can be ejected.
As a result, there is no residue K remaining in the residue reservoir KD after the residue K is discharged. Therefore, when the lid 72 is closed again, the seal member 75 and the seal member 78 (when the seal member 78 is not attached) The residue K is not sandwiched between the lid portion 72).
Therefore, the negative pressure in the scrap box 71 when the lid 72 is closed and the negative pressure generator BM is operated is always sufficient.
That is, the waste container KK can always perform the waste suction operation satisfactorily without using a sensor and without performing the opening / closing operation of the lid for blowing away the waste.

It goes without saying that the embodiments of the present invention are not limited to the above-described configuration, and may be modified without departing from the scope of the present invention.
In the state where the lid portion 72 is closed, the way in which the cas visor 76 and the receiving visor 79 overlap with each other may be such that the receiving visor 79 as described above is not located outside but located inside. However, when the receiving visor 79 is located on the inner side, there is a possibility that the residue K may be caught at the end 79t. Therefore, the receiving visor 79 is preferably overlapped so as to be located outside the cas visor 76.
It is better that the visor 76 and the receiving visor 79 are subjected to a surface treatment such as a low friction treatment or an oil repellency treatment on the surface where the casks K may come into contact.

DESCRIPTION OF SYMBOLS 1 Lower turret 2 Die holder 3 Disc support 4 Frame 3a, 4a, 20, 21 Air passage 13 Cass chute, 13a Vertical passage, 13b Inclination passage 51 Turret punch press 71 Scrap box 71b Side wall, 71b1 Side wall, 71c Bottom wall, 71t End face 72 Lid portion, 72h Back wall 73 Air cylinder, 73a Rod 74 Duct, 74a Opening portion 75, 78 Seal member, 75s, 78s Surface 76 Cas visor 76a Bottom portion, 76a1 top surface, 76b, 76c Side wall portion 76t End portion 77, 80 Air blow nozzle 79 receiving visor 79a bottom, 79a1 top surface, 79b, 79c side wall portion 79d back wall portion, 79e inclined portion, 79e1 inner surface AR77, AR80 air BM negative pressure generator CL72 rotation axis CV conveyor device D die, Da die hole Db opening D76, d79 projection amount KD debris reservoir, KK Kas accommodating device, KR suction passage KS debris receiving part, PK punching unit, TC turret center TS abutment, W workpiece

Claims (7)

A dregs storage device that sucks and collects dregs generated by processing,
A scrap box containing the waste,
One end side is connected to the scrap box, and a dash chute that guides the residue from the other end side to the scrap box,
A lid that opens and closes one side of the scrap box;
The scrap box has an inclined surface so that the one side surface is lowered, and the lid portion straddles the scrap box and the lid portion in a state where the one surface side is closed, and a tip portion is the lid. A Cass visor provided so as to be in the position that entered the part,
A dregs storage device comprising:   The waste container according to claim 1, wherein the scrap box includes a first air blow nozzle that injects air toward the cascade.   In the state where the one surface side is closed, the lid portion has at least a bottom portion that overlaps the tip portion of the cascade, and the tip portion straddles the lid portion and the scrap box at a position where the tip portion enters the scrap box. The waste container according to claim 1, further comprising a receiving visor provided in a certain manner.   The debris storage device according to claim 3, wherein the lid includes a second air blow nozzle that injects air toward the receiving visor.   5. The device according to claim 3, wherein in the state where the lid portion is closed on the one surface side, the cas visor and the receiving visor are configured to form a scum reservoir for accumulating and storing the scum. Waste storage device.   The upper surface of the bottom portion of the receiving visor is configured to be an inclined surface or a vertical surface in which the tip end side of the receiving visor is lowered in a fully opened state of the lid portion. The dregs accommodation apparatus of any one of these. A punching unit that has a die holder for holding a die and performs punching;
The waste container apparatus according to any one of claims 1 to 6,
With
The scrap box has an opening through which air inside is sucked by a negative pressure generator, while the other end side of the caster is connected to the die holder side so as to communicate with the die hole of the die,
When the air is sucked from the opening, the inside of the scrap box and the cash shooter becomes a negative pressure, and the waste generated by the punching is sucked and guided into the scrap box. A punch press characterized by

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