Automatic waste discharging system

Abstract

The present invention relates to an automatic scrap discharge system capable of more efficiently discharging die scraps discharged from a press without a discharge load by using a plurality of discharge grooves that integrally perform undulating motion (wave motion or undulating motion) while being lifted and lowered by a lifting and lowering member, comprising: a plurality of discharge grooves (2) having a bottom (8); vertical parts (9) (10) bent upwards at a set height on the front and rear surfaces of the bottom part (8); reinforcing members (17) (18) fixed to the outer surfaces of the vertical sections (9) (10) and having outward pins (13) (14) formed thereon; the upper end part of the U-shaped supporting part (12) is axially arranged on the outward shaft pins (13) (14) through bearings (19) (20); and the piston rod (16) of the lifting cylinder (15) is vertically arranged at the lower part of the center of the supporting component (12). The bottom part (8) can be any one of a semi-circular shape, a semi-elliptical shape, a semi-paraboloid shape, or a semi-elliptical paraboloid shape, the plurality of discharge grooves (8) can be an inclined type having a slope such that 2-8 segment grooves having the bottom part (8) and opposite vertical parts (9) (10) are overlapped and connected to form a step part (11), the position of the discharge groove (2) at the most front end is high, and the height of the discharge groove at the most rear end where the discharge port (3) is located is low.

Description

TECHNICAL FIELD

[0001] The present invention relates to an automatic scrap discharge system which utilizes a plurality of discharge grooves performing a fluctuation motion (wave motion or undulation motion) simultaneously based on the lifting of a lifting member, and is capable of efficiently discharging mold scrap discharged from a press machine without a discharge load. BACKGROUND

[0002] Generally, a press machine is provided with a lower die, and an upper die is provided at an upper portion of the lower die. When a press material (metal plate, etc.) is introduced (flowed) into the lower die, the upper die is lowered by a lifting member and presses the press material to perform molding (plastic working) by bending, extruding, cutting, etc. In this process, scrap is generated.

[0003] The scrap needs to be rapidly and continuously discharged to the outside of the mold to prevent the press molding work from being hindered, and thus a scrap discharge device (or a scrap discharge member) is provided around the press machine to discharge the scrap generated in the molding process.

[0004] The scrap discharge device moves the scrap and allows it to freely fall, and is collected in a collection barrel to be treated, or is discharged along a ramp having a predetermined inclined surface.

[0005] In the case of the ramp, since it is provided between the press machines having a narrow interval or at the rear of the press machine, a space for installation is narrow, and it is difficult to secure a slope required for the discharge of the scrap, and thus there is a problem in that the installation is limited. Accordingly, most of the ramps are vibrated by a vibration device to forcibly discharge the scrap along the inclined surface, or a reciprocating device is used to forcibly discharge the scrap, or the vibration device and the reciprocating device are provided in parallel around the press machine to discharge the scrap. However, most of the scrap discharge devices have a low efficiency, and generate a discharge load, and thus not only productivity is reduced, but also there are many problems in that the safety of a worker assisting in the discharge of the scrap is threatened. SUMMARY

[0006] PROBLEMS TO BE SOLVED BY THE INVENTION The present invention relates to an automatic scrap discharge system which utilizes a plurality of discharge grooves performing a fluctuation motion (wave motion or undulation motion) simultaneously based on the lifting of a lifting member, and is capable of efficiently discharging mold scrap discharged from a press machine without a discharge load.

[0007] TECHNICAL SOLUTION The waste automatic discharge system of the present application can be configured to include: a plurality of discharge grooves having a bottom; a vertical portion curved upward at a set height on the front and rear of the bottom; a reinforcing member fixed to the outer side of the vertical portion and formed with an outward shaft pin; an upper end portion of a "U"-shaped support member provided to the outward shaft pin through a bearing shaft; and a piston rod of a lifting cylinder vertically provided to the central lower portion of the support member 12, wherein the plurality of discharge grooves are lapped and supported at the end portions of adjacent other discharge grooves and connected in a row, and form a whole fluctuation motion while being lifted based on the respective lifting cylinders.

[0008] The bottom can be any one of a semicircle, or a semi-ellipse, or a semi-parabolic surface, or a semi-elliptical parabolic surface.

[0009] The end portion of the discharge groove can be provided with a plurality of ball plungers at a set pitch, and the end portions of adjacent discharge grooves are lapped and supported in a point contact manner.

[0010] The ball plunger can be characterized by forming a spring chamber of an upward open type inside a body formed with a screw portion of a set pitch on the outer peripheral surface, inserting a spring into the spring chamber, and protruding and rolling a ball bearing on the upper portion of the spring toward the outside of the body based on the spring rising.

[0011] The plurality of discharge grooves can be characterized by being connected in a stepped portion with 2 to 8 segmented grooves overlapping with the bottom and the opposite vertical portion.

[0012] The plurality of discharge grooves can be characterized by a slope inclination type in which the position of the frontmost end discharge groove is high and the height of the last end discharge groove is low.

[0013] The slope can be 10° to 40°.

[0014] The outward shaft pin can be configured to be biased toward one side of the discharge groove to facilitate tilting of the discharge groove.

[0015] It further includes an upward protruding portion curved outward at 10° to 45° on the upper portion of the vertical portion.

[0016] It further includes a baffle fixed to the front end portion of the frontmost end discharge groove.

[0017] The plurality of discharge grooves can be a linear type or a curved type provided to avoid obstacles.

[0018] It further includes a discharge hopper provided to the discharge port, receiving the waste discharged based on the discharge groove, and discharging it to the outside of the space where the press machine is provided.

[0019] Advantages The automatic waste discharge system 1 of the present application, which is characterized in that the waste S dropped and flowed (thrown) through the slope of the waste discharge device is discharged to the discharge port 3 along the discharge groove 2 based on the fluctuation movement of the respective lift cylinders 15 without discharge load and rapidly and efficiently, thereby achieving the effect of smooth press work.

[0020] The cross-sectional shape of the bottom 8 of the discharge groove 2 of the present application is semicircular, semi-elliptical, semi-parabolic, or semi-elliptical parabolic, and thus even if the waste S is stained with oil such as press oil on the surface or the surface and the inside, the close contact or adsorption of the waste S and the bottom 8 can be prevented, thereby achieving the effect of not affecting the moving discharge of the waste S.

[0021] In the present application, the portion in which the end portions of the discharge grooves 2 are lapped and supported is provided with a plurality of ball plungers 30, and point contact is formed between the adjacent discharge grooves 2, thereby preventing surface contact or friction, and achieving the effects of preventing the shortening of the life of the discharge grooves 2 and the generation of noise, and achieving smooth fluctuation movement.

[0022] The automatic waste discharge system 1 of the present application can smoothly discharge all the waste generated when a press material is formed regardless of the size, and has the effect of improving productivity accordingly.

[0023] The present application relates to the discharge of waste generated during press work, and has the effect of protecting the safety of workers and the like, and is a very useful invention. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 : A perspective view shown as one example of the present application.

[0025] Figure 2 : A plan view shown as one example of the present application.

[0026] Figure 3 : A front view shown as one example of the present application.

[0027] Figure 4 : A use state plan view shown as one example of the present application.

[0028] Figure 5 : A front view shown as another example of the present application.

[0029] Figure 6 : A component perspective view shown as one example of the present application.

[0030] Figure 7 : A front end perspective view shown as one example of the present application.

[0031] Figure 8 : A component sectional view shown as one example of the present application.

[0032] Figure 9 : Sectional view of the shaft pin in a weight-biased state as an example of the present invention.

[0033] Figure 10 : Sectional view of the ball head plunger portion as an example of the present invention.

[0034] Figure 11 : Sectional view of the shaft pin portion of the discharge groove as an example of the present invention.

[0035] Figure 12 : Sectional view of the discharge groove portion in a partially raised state as an example of the present invention.

[0036] Figure 13 : Sectional view of the discharge groove portion in a fully raised state as an example of the present invention.

[0037] Figure 14 : Sectional view of the discharge groove portion in a state of being connected and supported in multiple as an example of the present invention.

[0038] Figure 15 : Sectional view of the discharge groove portion in a state of being connected and tilted in multiple as an example of the present invention.

[0039] Figure 16 : Plan view of the automatic waste discharge system of another embodiment configured to be able to avoid obstacles in the present invention.

[0040] Figure 17 : Perspective view of the automatic waste discharge system of another embodiment configured to be able to avoid obstacles in the present invention.

[0041] Figure 18 : Sectional view of the waste discharge state as an example of the present invention, a state in which the waste flows into the 1st discharge groove.

[0042] Figure 19 : Sectional view of the waste discharge state as an example of the present invention, a state in which the waste moves to the 3rd discharge groove.

[0043] Figure 20 : Sectional view of the waste discharge state as an example of the present invention, a state in which the 3rd discharge groove rises while the waste rises together.

[0044] Figure 21 : Sectional view of the waste discharge state as an example of the present invention, a state in which the waste moves to the 5th discharge groove.

[0045] Figure 22 : Sectional view of the waste discharge state as an example of the present invention, a state in which the 5th discharge groove rises while the waste rises together.

[0046] Figure 23 FIG. 7 is a sectional view of a waste discharge state, showing a state in which the waste is moved to the 7th discharge groove, as an example of the present application.

[0047] Figure 24 FIG. 8 is a sectional view of a waste discharge state, showing a state in which the waste is raised together with the 7th discharge groove, as an example of the present application.

[0048] Figure 25 FIG. 9 is a sectional view of a waste discharge state, showing a state in which the waste is discharged through the discharge port of the 8th discharge groove, as an example of the present application.

[0049] Figure 26 FIG. 10 is a side sectional view of a waste discharge hopper, as an example of the present application.

[0050] BRIEF DESCRIPTION OF DRAWINGS 1: waste automatic discharge system 2, 21, 22, 23, 24, 25, 26, 27, 28: discharge groove 2a, 2b, 2c, 2d: segment groove 3: discharge port 4: punch 5: material transfer device 5a: material supply device 5b: material discharge device 6: lower die 7: ramp 8: bottom 9, 10: vertical portion 9a, 10a: upper end portion 11: step portion 12: support member 13, 14: shaft pin 15, 151, 152, 153, 154, 155, 156, 157, 158: lift cylinder 16, 16a: lift cylinder piston rod 17, 18: reinforcing member 19, 20: bearing 21a: baffle 29: frame 30: ball plunger 31: screw portion 32: body 33: spring chamber 34: spring 35: ball bearing 36: screw hole 37: reinforcing plate 50: obstacle 150: support 154a-158a: two-stage lift cylinder θ, θ2: slope (angle) S: waste DETAILED DESCRIPTION Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the embodiments of the present invention, the same reference numerals will be used as much as possible to describe the same constituent elements in the drawings, and specific descriptions of related well-known structures or functions will be omitted to avoid obscuring the essence of the present invention. Furthermore, the items shown in the drawings are simplified schematic diagrams for the purpose of illustrating the embodiments of the present invention and may differ from the actual implementation.

[0051] Figure 1 This is a perspective view of an automatic waste disposal system 1, as an example of the present invention. Figure 2 The front view shows multiple discharge slots 2 of a set size arranged in a row. While each slot is raised and lowered by its own lifting component (lifting cylinder), it forms an overall undulating motion (wave motion or wavy motion). Thus, when multiple waste materials S discharged from the waste discharge device of the press 4 are put into the discharge slots 2, they are efficiently discharged by moving rapidly toward the discharge outlet 3 without discharge load based on the undulating motion.

[0052] like Figure 4 As shown, the automatic waste discharge system 1 is located at the lower end of the ramp 7 of the waste discharge device 6, which is located on one side of the lower die 5 of the stamping machine 4 or at the rear end (or one side) of the lower die 5. It receives the waste S that slides or falls along the ramp 7 and quickly and efficiently moves and discharges it. The discharge end of the ramp 7 of the waste discharge device is configured or positioned above the discharge trough 2, so that the waste S falling through the ramp 7 naturally flows into (or is discharged into) the discharge trough 2. Figure 4 5a is a material supply device, 5 is a material transfer device, and 5b is a material discharge device.

[0053] The present invention also includes a waste discharge hopper 100, which is disposed at the discharge outlet 3 of the waste automatic discharge system 1, receives the waste S discharged through the discharge trough 2, and discharges it toward the outside of the space where the stamping machine 4 is disposed.

[0054] The discharge trough 2 of the present invention has a set width and length, so that waste S falling freely through the ramp 7 of the waste discharge device 6 can flow in (inject) and be placed. In addition, the bottom 8 has an upward-opening shape that is semi-circular, semi-elliptical, semi-parabolic, or semi-elliptical-parabolic.

[0055] In the front and rear of the bottom 8, the vertical portions 9, 10 of a certain height are bent upward, the waste S falling through the ramp 7 is efficiently flowed into the bottom 8 of the discharge groove 2, and since the cross-sectional shape of the bottom 8 is semicircular, semi-elliptical, semi-parabolic, or semi-elliptical parabolic, even if the surface or the surface and the inside of the waste S is stained with oil such as press oil, the close contact or the adsorption of the waste S and the bottom 8 can be prevented, and thus the movement discharge of the waste S is not affected.

[0056] In the present application, preferably, the upper surface of the bottom 8 through which the waste S passes is greatly reduced in resistance to prevent friction and abrasion. For example, oil can be applied, or smoothing treatment or mirror finishing can be performed to reduce the coefficient of friction.

[0057] The discharge groove 2 is integrally formed by a plurality of segment grooves 2a, 2b, 2c, 2d having the bottom 8 and the opposite vertical portions 9, 10.

[0058] For example, the segment grooves 2a, 2b, 2c, 2d composed of 2 to 8 are overlapped and fastened in a manner of being overlapped up and down, or are fixed by fusion or the like, and in the overlapped portions, step portions having a height difference of the thickness of the segment grooves 2a, 2b, 2c, 2d are respectively formed in the upper and lower surfaces of the discharge groove 2, as shown in Figure 8 to Figure 10 , Figure 14 As shown in the drawing, the step portion 11 formed in the upper surface of the discharge groove 2 is gradually lowered toward the direction of the discharge port 3 discharging the waste S, and thus, by the engagement of the step portion 11, the movement of the waste S discharged along the discharge groove 2 toward the opposite direction (reverse direction) of the discharge port 3 is prevented, and thus the waste S is rapidly and efficiently discharged toward the direction of the discharge port 3.

[0059] In the front and rear width of the segment grooves 2a, 2b, 2c, 2d, the length is longer, and the entire planar shape is formed as a square or a rectangular close to a square, and thus the waste S falling through the ramp 7 is efficiently flowed into and settled in the discharge groove 2 to be discharged.

[0060] Preferably, the discharge groove 2 and the segment grooves 2a, 2b, 2c, 2d have strength and thickness capable of sufficiently supporting and moving the waste S.

[0061] The outer side surface of the vertical portion 9, 10 is provided with reinforcing members 17, 18 forming outward shaft pins 13, 14, and at the outward shaft pins 13, 14, the upper end portion of the fork-shaped or "U"-shaped support member 12 is axially provided through bearings 19, 20, and thus the discharge groove 2 can be rotated with the outward shaft pins 13, 14 as the center.

[0062] The central lower portion of the support member 12 is fixed with the upper end portion of the piston rod 16 of the vertically provided lifting cylinder 15, and when the piston rod 16 is extended and retracted by the lifting cylinder 15, the discharge groove 2 can be raised and lowered.

[0063] In order to satisfy the lift stroke, the discharge groove 2 can adopt or be provided with a lift cylinder of a lift stroke length, or a two-stage cylinder or a double cylinder or a bidirectional cylinder, so that sufficient lift is formed at the discharge groove 2 at a position of relatively high height, and the cylinder provided at a position close to the discharge port 3 can be a single-acting cylinder or a one-stage cylinder.

[0064] In the present application, in order to facilitate the description, eight discharge grooves 2, such as the first to eighth discharge grooves 21, 22, 23, 24, 25, 26, 27, 28, are shown to simultaneously discharge the waste S through the lift and fluctuation movement of the respective lift cylinders, i.e., the first to eighth lift cylinders 151, 152, 153, 154, 155, 156, 157, 158.

[0065] The rear end portion of the first discharge groove 21 is overlapped and lapped to support the front end portion of the second discharge groove 22 with a set width, the rear end portion of the second discharge groove 22 is overlapped and lapped to support the front end portion of the third discharge groove 23 with a set width, the rear end portion of the third discharge groove 23 is overlapped and lapped to support the front end portion of the fourth discharge groove 24 with a set width, the rear end portion of the fourth discharge groove 24 is overlapped and lapped to support the front end portion of the fifth discharge groove 25 with a set width, the rear end portion of the fifth discharge groove 25 is overlapped and lapped to support the front end portion of the sixth discharge groove 26 with a set width, the rear end portion of the sixth discharge groove 26 is overlapped and lapped to support the front end portion of the seventh discharge groove 27 with a set width, and the rear end portion of the seventh discharge groove 27 is overlapped and lapped to support the front end portion of the eighth discharge groove 28 with a set width, so as to be connected in a row, and a plurality of ball plunger 30 is provided at a set interval at the portion of the discharge groove 2 lapped to support, so as to be supported in a point contact manner, thereby significantly reducing the friction or noise.

[0066] The number of the eight first to eighth discharge grooves 21, 22, 23, 24, 25, 26, 27, 28 can be increased or decreased in consideration of the total discharge interval or total discharge length of the discharged waste S, and the length and width or size of the discharge groove 2 can be appropriately adjusted.

[0067] Preferably, the upper portion of the vertical portion 9, 10 forms an upward protruding portion 9a, 10a, which is curved outward at a set angle θ, so as to make the waste S flow more smoothly into the inside of the discharge groove 2. The set angle θ can be 10°~45°.

[0068] In order to efficiently discharge the waste S, the waste automatic discharge device 1 of the present application is provided as an inclined type with a slope that the front end portion where the first discharge groove 21 is located is high and the eighth discharge groove 28 where the discharge port 3 is located is low, and therefore, the overall discharge groove 2 fluctuates and moves in a state of inclination while discharging the waste S.

[0069] The slope θ2 of the automatic waste discharge system 1 can be 10° to 40°. In the case where the total length of the automatic waste discharge system 1 is shortened, the slope can be steep. In contrast, in the case where the total length of the automatic waste discharge system 1 is lengthened, the slope can be gentle.

[0070] In the present application, as in the case of the discharge groove 21 located at the most front end, in the case where lifting or height fixing is not required, as shown in Figure 5 instead of the first lifting cylinder 151, a support member 12 can be provided at the upper portion of the vertical support 150 to support the most front end discharge groove 21.

[0071] Preferably, the most front end portion of the most front end discharge groove 21 is closed with an end plate or a baffle 21a, and the waste S flowing into the most front end discharge groove 21 does not move toward the front end of the most front end discharge groove 21 or escape therefrom.

[0072] The fixing plate 29 at the lower portion of the lifting cylinder 15 can be anchored to the floor surface on which the punch 4 is provided or the ground, or fixed by a base stone or an additional support frame, and a plurality of lifting cylinders 15 can be firmly provided using the fixing plate 29 and a frame 29a having a long length connecting the fixing plate 29.

[0073] The positions of the shaft pins 13 and 14 provided in the discharge groove 2 or the points at which the shaft pins 13 and 14 are supported are located at the side of the discharge groove 2, for example, the first section groove 2a or the opposite direction of the discharge port 3, so that the center of gravity of the discharge groove 2 is biased toward the opposite direction of the discharge port 3, and the discharge groove 2 can be more easily tilted toward the direction of the discharge port 3.

[0074] Thus, the end portion of the discharge groove 2 toward the discharge port 3 is overlapped and supported on the upper portion of the other discharge groove 2 provided adjacent thereto, and is lifted, so that the discharge grooves 2 connected in a row can be moved as a whole.

[0075] In the present application, a plurality of ball plungers 30 are provided at a set pitch at the portion where the end portion of the discharge groove 2 is overlapped and supported, so as to prevent surface contact or friction between the adjacent discharge grooves 2, thereby preventing or greatly reducing the shortening of the life of the discharge groove 2 and the generation of noise, and achieving smooth fluctuation movement.

[0076] As shown in Figure 10 In the ball plunger 30, a screw portion 31 having a set pitch is formed at the inside of a body 32 having an outer circumferential surface, a spring chamber 33 having an upwardly open shape is formed, a spring 34 is inserted into the spring chamber 33, and a spherical ball bearing 35 supported by the spring 34 is provided at the upper portion of the spring 34 in such a manner as not to escape (separate) to the outside of the body 32 while being moved in a rolling manner.

[0077] The ball head plunger 30 is fastened to the screw hole 36 formed on one side of the bottom 8 by the screw part 31 formed on the outer circumferential surface of the body 32, and the ball bearing 35 protruding toward the upper portion of the body 24 rolls and is supported in point contact with the bottom surface of the bottom 8 of the discharge groove 2, thereby preventing contact or friction between the discharge grooves 2 and preventing noise, and achieving smooth undulating movement of the entire discharge grooves 2.

[0078] Preferably, since the load (or vertical stress) of the adjacent discharge grooves 2 is concentrated, the ball bearing 26 is made of a steel material such as stainless steel or alloy steel having excellent wear resistance, to suppress oxidation and wear and prevent reduction in service life.

[0079] Preferably, as shown in FIG. 6, the ball head plunger 30 is positioned at the lower portion, and the reinforcing plate 37 is fixed to the upper surface or the bottom surface of the bottom 8 of the discharge groove 2 supporting the adjacent discharge groove 2, to maintain the set thickness at which the ball head plunger 30 can be firmly fastened. Figure 10

[0080] In the present application, the ball head plunger 30 is provided at the front end of the discharge groove 2, the ball bearing 35 protrudes toward the upper portion, and supports the adjacent discharge groove 2, but can also be provided at the rear end of the discharge groove 2, the ball bearing 35 protrudes toward the lower portion, and supports the front end of the adjacent discharge groove 2, in which case, the movement or discharge of the waste S should not be affected or hindered.

[0081] In the present application, in order to satisfy the lifting stroke, the 1st to 8th lifting cylinders 151, 152, 153, 154, 155, 156, 157, and 158 can be two-stage cylinders. For example, one side of the connecting member 39 is fixed to the piston rod end of the 3rd lifting cylinder 153, a two-stage lifting cylinder 153a is provided on the other side of the upper surface of the connecting member 39, and the support member 12 is fixed to the piston rod end of the two-stage lifting cylinder 153a, thereby enabling the 3rd discharge groove 23 to move up and down.

[0082] Likewise, one side of the connecting member 39 is fixed to the piston rod end of the 4th to 8th lifting cylinders 154 to 158, a two-stage lifting cylinder 154a to 158a is provided on the other side of the upper surface of the connecting member 39, and the support member 12 is fixed to the piston rod end of the two-stage lifting cylinder 154a to 158a, thereby enabling the 4th to 8th discharge grooves 24 to 28 to move up and down. Thus, the discharge grooves 2 move up and down based on the vertically arranged lifting cylinders 15, and the entire discharge grooves 2 move in an undulating motion (sine wave motion), the waste S flowing into the bottom 8 is rapidly and efficiently discharged to the discharge port 3 at a low position without discharge load, and smooth press working is achieved.

[0083] ​The lifting cylinders 15, 151-158, and 153a-158a are used as an example of one of the lifting components for raising and lowering the discharge tanks 2, 21, 22, 23, 24, 25, 26, 27, and 28. Of course, a combination of a reversible geared motor and a ball screw can also be used to construct the lifting component. Furthermore, other types of lifting components can also be used to achieve the individual raising and lowering of the discharge tanks 2.

[0084] Figure 16 and Figure 17 The plan and perspective views of another embodiment of the present invention show that the automatic waste discharge system 1 can be configured to avoid obstacles 50, such as pillars or structures, in the installation area. That is, taking into account the shape, appearance, and size of the obstacles 50, multiple discharge channels 21, 22, 23, 24, 25, 26, 27, and 28 are constructed in a curved shape without contacting the obstacles 50. Thus, the waste S can be moved (transferred) to the discharge outlet 3 using the multiple discharge channels 21, 22, 23, 24, 25, 26, 27, and 28 connected by curves.

[0085] Figure 18 to Figure 25 An example is given of the process by which waste S, which falls through ramp 7 and flows into the first discharge trough 21, is discharged to the discharge outlet 3 in the fluctuating motion state of the waste automatic discharge system 1 of the present invention.

[0086] The waste automatic discharge system 1 of the present invention is based on the control of a controller. Multiple discharge tanks 2 rise and fall simultaneously through lifting cylinders 15 to achieve wave motion.

[0087] In this state, such as Figure 18 As shown, the waste S, which falls and is fed into the ramp 7, is positioned towards the bottom 8 of the first discharge trough 21, as... Figure 19 As shown, through the undulating motion based on the descent action of the second lifting cylinder 152, the third lifting cylinder 153 and the second-stage lifting cylinder 153a, the second discharge trough 22 and the third discharge trough 23 are inclined in a way that they become lower toward the discharge outlet 3. The waste S flowing into the first discharge trough 21 slides through the bottom 8 of the second discharge trough 22 to the bottom 8 of the third discharge trough 2, which is lower than the position of the second discharge trough 22.

[0088] And, as Figure 20 As shown, through the maximum rise of the third lifting cylinder 153 and the second-stage lifting cylinder 153a, and the partial rise of the fourth lifting cylinder 154 and the second-stage lifting cylinder 154a, the third discharge trough 23 rises to its maximum extent, and the fourth discharge trough 24 rises partially, as shown. Figure 21 As shown, it slides to the bottom 8 of the fourth discharge channel 24 via the bottom 8 of the third discharge channel 23, which is lower than the position of the second discharge channel 22.

[0089] Further, as shown in Figure 22 , by the maximum lift of the 5th lift cylinder 155 and the two-stage lift cylinder 155a and the partial lift of the 6th lift cylinder 156 and the two-stage lift cylinder 156a, the 5th discharge groove 23 is lifted to the maximum and the 6th discharge groove 24 is partially lifted, as shown in Figure 23 , the waste S is discharged to the bottom 8 of the 6th discharge groove 26 which is lower than the position of the 5th discharge groove 25 and to the bottom 8 of the 7th discharge groove 27.

[0090] Further, as shown in Figure 24 , by the maximum lift of the 7th lift cylinder 157 and the two-stage lift cylinder 157a and the partial lift of the 8th lift cylinder 158 and the two-stage lift cylinder 158a, the 7th discharge groove 27 is lifted to the maximum and the 8th discharge groove 28 is partially lifted, as shown in Figure 25 , the waste S is discharged to the bottom 8 of the 8th discharge groove 26 which is lower than the position of the 7th discharge groove 27 and to the discharge port 3.

[0091] As shown in Figure 18 to Figure 25 , the waste automatic discharge system 1 of the present application is lifted by each respective lift cylinder in a set period while forming a wave motion of a plurality of discharge grooves 2 connected in a row.

[0092] In the present application, for the convenience of explanation, as shown in Figure 18 to Figure 25 , the waste S is discharged to the discharge port 3 after flowing into the 1st discharge groove 21 and sequentially passing through the 2nd discharge groove 21 to the 8th discharge groove 28, but the ramp 7 of the plurality of waste discharge devices of at least one or more is provided at a set position on the waste automatic discharge system 1 of the present application, so that the corresponding waste S falls and flows into the discharge groove 2 at the corresponding position, moves rapidly along the plurality of discharge grooves 2 in the wave motion, and is discharged to the discharge port 3.

[0093] That is, the position at which the waste S falls and is dropped is the position at which the ramp 7 of the plurality of waste discharge devices of at least one or more is provided, so that the waste S of at least one or more falls and flows into at least one position of the waste automatic discharge system 1 at the same time or with a time interval, and is discharged to the discharge port 3.

[0094] The waste S discharged to the discharge port 3 is discharged to the outside through the waste hopper 100, and a smooth press forming operation without discharge load is formed.

[0095] In the present application, according to Figure 16 , Figure 17 , another embodiment, the waste S is discharged as described above, but only in the case where the waste S passes through the plurality of discharge grooves 21, 22, 23, 24, 25, 26, 27, 28 and the lift cylinder and the two-stage cylinder formed to avoid the obstacle 50, this point is different in that it is realized in a curved shape.

[0096] In the present application, the discharge port 3 is provided in a gradually lowered direction in a tilted type, and the waste S generated during the press forming is rapidly discharged to the discharge port 3 through the discharge groove 2 which is moved in a whole fluctuation by the respective lifting cylinders 15, while preventing the discharge load of the waste S, thus realizing smooth press forming work.

[0097] The waste discharge hopper 100 provided at the discharge port 3 of the waste automatic discharge system 1 receives the discharged waste S with a shovel, moves upward, and is discharged to the outside of the space where the press machine 4 is provided.

[0098] As shown in the drawing, Figure 26 In the waste discharge hopper 100, a pair of tilted rails 102 is provided at the front of the body 101 which is tilted from the front end to the rear end, the tilted rails 102 are provided with a transfer car 103 which is capable of reciprocating, a cylinder 104 is provided at one side of the body 101, the piston rod end of the cylinder 104 is provided with the transfer car 103, a waste S collecting bucket 105 is provided at the upper part of the transfer car 103, and the cylinder 106 is provided at the transfer car 103 to tilt the waste S collecting bucket 105 toward the rear, and the collected waste S is poured toward the rear.

[0099] The waste S collecting bucket 105 is lowered based on the cylinder 104, receives the waste S discharged through the discharge port 3 of the 8th discharge groove 28, forms a certain volume or weight, and is raised at the discharge port 3 of the 8th discharge groove 28, after the transfer car 103 is raised along the tilted rail 104 based on the cylinder 104, the waste S collecting bucket 105 is tilted toward the rear based on the cylinder 106 provided at the transfer car 103, is lowered and reset when pouring the collected waste S, receives the next waste S, and is discharged in the above-mentioned process.

[0100] As shown in the drawing, Figure 26 The waste discharge hopper 100 can be configured as a two-stage waste discharge hopper 100a or a three-stage, so as to pour and discharge the collected waste S to the destination.

[0101] Figure 26 The waste S collecting bucket 105 of the waste discharge hopper 100 is raised, tilted toward the rear based on the cylinder 106, and poured into the waste S collecting bucket 105 of the waste discharge hopper 100a which is lowered and transferred.

[0102] In the present application, the frontmost end of one side where the 1st discharge groove 21 is located is the highest, and the other side where the discharge port 3 is located has a low slope, thus realizing smooth discharge of the waste S which is dropped and flows in by fluctuation, and thus preventing the reduction of press productivity caused by the discharge load of the waste.

[0103] The bottom 8 of the discharge groove 2 of the present application has a cross-sectional shape of a semicircle, a semi-ellipse, a semi-parabola, or a semi-elliptic parabola, so that even if the surface or the surface and the inside of the waste S is stained with oil such as press oil, the close contact or the adsorption of the waste S and the bottom 8 can be prevented, and the movement discharge of the waste S is not affected.

[0104] In the present application, the portion of the end of the discharge groove 2 which is overlapped and supported is provided with a plurality of ball plunger 30, so that the point contact is formed between the adjacent discharge grooves 2, the surface contact or the friction is prevented, the shortening of the life of the discharge groove 2 and the generation of the noise are prevented, and the smooth fluctuation movement is achieved.

[0105] In the present application, the front end of the first discharge groove 21 which is located at the foremost end is fixed with an end plate or a baffle 21a, the movement of the waste S which falls down and flows in toward the opposite direction of the discharge port 3 is prevented, and the step portion 11 which corresponds to the thickness of the plate material which constitutes the segment groove is formed between the segment grooves and between the discharge grooves 2, so that the movement or the backflow of the waste S which falls down and flows in toward the opposite direction of the discharge port 3 is automatically prevented.

[0106] The present application as described above is not limited to the present embodiment and the drawings, and various substitutions, modifications, and changes can be made within the scope of the technical idea of the present application, which will be obvious to a person having ordinary knowledge in the field of the present application.

Claims

1. An automatic waste ejection system, wherein, Comprising: a plurality of discharge grooves having a bottom; a vertical portion curved upward at a set height on the front and rear of the bottom; a reinforcing member fixed to the outer side of the vertical portion and formed with an outward shaft pin; a "U" shaped support member provided at the upper end of the outward shaft pin through a bearing shaft; and a piston rod of a lifting cylinder vertically provided at the central lower portion of the support member, wherein the plurality of discharge grooves are lapped and supported at the end of the adjacent other discharge grooves, and connected in a row, and form a whole fluctuation motion while being lifted based on the respective lifting cylinders.

2. The automatic waste discharge system according to claim 1, wherein the bottom is any one of a semicircular shape, a semi-elliptical shape, a semi-parabolic shape, or a semi-elliptical parabolic shape.

3. The automatic waste discharge system according to claim 1 or 2, wherein the end of the discharge groove is provided with a plurality of ball head plungers at a set interval, the end of the adjacent discharge groove is lapped, and is supported in a point contact manner.

4. The automatic waste discharge system according to claim 3, wherein in the ball head plunger, a spring chamber of an upward open type is formed inside a body formed with a screw portion of a set pitch on an outer peripheral surface, a spring is inserted and provided in the spring chamber, a ball bearing supported on the upper portion of the spring protrudes toward the outside of the body and performs a rolling motion based on the spring rising.

5. The automatic waste discharge system according to claim 1 or 2, wherein in the plurality of discharge grooves, 2 to 8 segment grooves having a bottom and an opposite vertical portion are connected in overlap, and a stepped portion is formed.

6. The automatic waste discharge system according to claim 1 or 2, wherein the plurality of discharge grooves are of an inclination type in which the position of the front end discharge groove is high and the height of the rear end discharge groove is low.

7. The automatic waste discharge system according to claim 6, wherein the inclination is 10° to 40°.

8. The automatic waste discharge system according to claim 1 or 2, wherein the outward shaft pin is biased toward one side of the discharge groove, and enables the discharge groove to be easily inclined.

9. The automatic waste discharge system according to claim 1 or 2, further comprising: an upward protruding portion curved outward at 10° to 45° on the upper portion of the vertical portion.

10. The automatic waste discharge system according to claim 1 or 2, further comprising: a baffle fixed to the front end portion of the front end discharge groove.

11. The automatic waste discharge system according to claim 1 or 2, wherein the plurality of discharge grooves are of a linear type or a curved type provided to avoid obstacles.

12. The automatic waste discharge system according to claim 1 or 2, further comprising: a discharge hopper provided at the discharge port, receiving the waste discharged based on the discharge groove, and discharging it to the outside of the space where a press machine is provided.

Images