KR200393114Y1 - Auto take out device for branking product - Google Patents

Abstract

The present invention relates to an automatic take-out apparatus for fine blank workpieces, in which a workpiece is taken out by a pusher arm of a link structure which is installed in a mold of a blanking press and moves forward and backward in association with a ram moving up and down.

Automatic fine blanking apparatus according to the present invention is mounted on one side of the lower table 200, the support frame 300 to move up and down with the lower table 200; An up and down sliding ram 360 provided inside the support frame 300 to selectively move up and down together with the support frame 300; A pusher arm (400) mounted on one side of the upper table (100) to selectively restrain the vertical movement of the vertical sliding ram (360); It is provided on one side of the support frame 300, it is configured to include a take-out arm 700 is folded in accordance with the vertical movement of the vertical sliding ram 360 to take out the workpiece. According to the present invention, there is an advantage that the working environment is improved, and the production efficiency is improved.

Description

Fine blanking machine for automatic extraction {Auto take out device for branking product}

The present invention relates to a fine blanking press, and more particularly, the automatic blanking of a fine blank processed product in which a workpiece is taken out by a pusher arm of a link structure installed in a mold of the blanking press and interlocked with a ram moving up and down. Relates to a device.

In general, fine blanking is a press working process that obtains high operating cross sections and good product precision required over the entire thickness of the product in one blanking process.

Here, the word FINE should be regarded as obtaining a good and good surface. Since the blanking process is a shearing process for obtaining a product, the press shearing surface is obtained with a finished shearing surface that does not require any further machining. Can lose.

The fine blanking process is performed by the following operation principle. First of all, before the shearing starts, the V-ring installed on the guide plate moves down the '재료' groove along the outer contour of the shear line to the material between the guide plate and the die plate so that the movement of the material in the transverse direction is prevented. At the same time, shearing is performed while the ejector at the bottom of the punch supports the bottom of the product being sheared and blocks longitudinal deformation.

As such, the shearing operation is performed while the material is clamped, thus obtaining precise dimensions and a smooth shear surface.

In addition, in general blanking, the punch passes down the sheared product while passing through the die hole, but in fine blanking, the punch does not pass through the die hole but is sheared down only by the material thickness, and the sheared product is ejected by the ejector. It is removed out of the mold by an air blower or a mechanical device that returns to the die plate top surface and blows compressed air.

However, the prior art as described above has the following problems.

Extraction of the processed product by the mechanical device generally takes out the processed product from the blanking press as a separate system combining a separate power (for example, pneumatic or hydraulic cylinder or DC motor) and the mechanism using the same.

Such a mechanism may be controlled by a separate control circuit, and may operate in conjunction with the vertical movement of the press die.

Therefore, the overall configuration is not only complicated, but also requires a separate power source has a problem that the manufacturing cost increases, there is a problem that the malfunction is difficult to precise control in the press operating at a relatively high speed.

Then, taking out the processed product by the air blower is made by the method of spraying high pressure compressed air to the finished product according to the vertical motion of the press.

The method using the air blower also requires a separate system and power for the compression of the air, there is a problem that the manufacturing cost increases, the working environment is poor due to the noise (about 200dB) caused by the compressed air generated during operation There is a problem losing.

In addition, when the air blower is sprayed on the workpiece, the workpiece is not taken out to a predetermined position, but the processed article and scrap after processing are scattered according to the situation, thereby impairing the safety of the worker.

In addition, due to the compressed air dispersed in the air blower, the workpiece is scattered in an unspecified direction, and as a result, the workpiece may be damaged by hitting other processed and separated structures as well as scrap or other structures. There is a problem.

This is because of the nature of the fine blanking process because the processed product is completed without a separate post-processing, there is a serious problem that lowers the quality of the product, as well as a failure occurs to inhibit the productivity.

An object of the present invention is to solve the problems of the prior art as described above, the fine product is removed by the pusher arm of the link structure which is installed in the mold of the blanking press and moves forward and backward in conjunction with the ram moving up and down. It is an object of the present invention to provide an automatic take-out device for blanking workpieces.

Automatic blank blanking product take-out device according to the present invention for achieving the above object, in the press consisting of the upper table and the upper mold is fixed position, and the lower table and the lower mold for blanking the product by moving up and down A support frame mounted on one side of the lower table to vertically move together with the lower table; An up and down sliding ram provided inside the support frame to selectively move up and down together with the support frame; A pusher arm mounted on one side of the upper table to selectively restrain the vertical movement of the vertical sliding ram; It is provided on one side of the support frame, it is characterized in that it comprises a take-out arm is folded in accordance with the vertical movement of the vertical sliding ram to take out the workpiece.

The support frame is coupled to the lower table and the support for supporting a stable mounting; It is formed to extend upward from one side of the support, comprising a guide for guiding the vertical sliding of the vertical sliding ram.

The upper upper end and the lower end of the guide part further include an upper stopper and a lower stopper selectively contacting the upper end and the lower end of the vertical sliding ram to limit vertical movement of the vertical sliding ram.

One side of the upper and lower sliding rams is formed with a constrained pocket recessed to be selectively accommodated on one side of the pusher arm.

One side of the vertical sliding ram is formed with a rack formed with a plurality of teeth up and down.

One side of the support is provided with a pinion formed to engage the rack.

One side of the pusher arm is further provided with a link roller for rolling along the outer circumferential surface of the upper and lower slide rams, which is selectively received into the restraint pocket.

The left and right both sides of the support portion are provided on both sides of the pinion, further provided with a ball screw assembly for converting the rotational movement of the pinion into a horizontal movement.

Guide assemblies for guiding the take-out arm are further provided on both left and right sides of the support part in association with the ball screw assembly.

One side of the support portion is further provided with a transfer connector for connecting the ball screw assembly and the takeout arm so as to transfer the left and right horizontal movement of the ball screw assembly to the takeout arm.

The extraction arm is repeatedly connected such that a plurality of rods cross each other on the left and right sides, and the cross-connected portion is formed in a link structure in which a pin is coupled by a connecting pin.

The front end of the blowout arm is formed of a shock absorbing material is further provided with a push hand to prevent damage to the workpiece when in direct contact with the workpiece.

According to the present invention having such a configuration, there is an effect that the working environment is improved and the production efficiency is improved.

Hereinafter, a preferred embodiment of the present invention as described above will be described in detail with reference to the drawings.

1 is a perspective view showing a reverse state of a take-out arm which is a main component of a preferred embodiment of the automatic blank blanking product take-out device according to the present invention, Figure 2 is a main configuration of a preferred embodiment of the automatic blank blanks workpiece take-up device according to the present invention It is a perspective view which shows the advanced state of phosphorus extraction arm.

As shown in these figures, the fine blanking press employing a preferred embodiment of the present invention is composed of the upper mold 120 and the lower mold 220, unlike the general fine blanking press, the lower mold 220 is placed on the material ) Is sheared as it moves up and down.

The upper mold 120 and the lower mold 220 are mounted to the upper table 100 and the lower table 200 supporting the mounting of the upper mold 120 and the lower mold 220, respectively, and the upper mold ( 120 and the lower mold 220 is detachably mounted according to the product to be processed.

The lower table 200 and the lower mold 220 are integrally formed to move up and down, and a support frame 300 is mounted on one side of the lower table 200. The support frame 300 is installed on the upper surface of the lower table 200 to be mounted a plurality of components including the vertical sliding ram 360 and the extraction arm 700 to be described below, the lower table 200 Will move up and down together.

The support frame 300 is formed in a substantially 'L' shape when viewed from the side, it is composed of a support 320 and the guide 340.

The support part 320 forms a lower portion of the support frame 300 so as to be horizontal to the lower table 200. The bottom surface of the support part 320 is in close contact with the lower table 200 to fix the support frame 300 to the lower table 200, and the upper surface of the support part 320 will be described in detail below. Supports the mounting of components for operation of 700.

The guide part 340 is formed to extend higher than the height of the vertical sliding ram 360 by guiding the vertical movement of the vertical sliding ram 360, the vertical sliding ram 360 can move up and down smoothly. It is usually formed to accommodate the vertical sliding ram 360 so that.

The upper and lower ends of the guide part 340 are provided with an upper stopper 342 and a lower stopper 344, respectively. The upper stopper 342 and the lower stopper 344 regulate the vertical movement of the vertical sliding ram 360 that moves up and down inside the guide part 340, and the upper and lower parts of the vertical sliding ram 360 It is formed to selectively contact with.

The vertical sliding ram 360 is formed in a column shape having a substantially circular or polygonal cross section, and the guide part 340 of the guide part 340 to selectively slide up and down inside the guide part 340 of the support frame 300. It is formed to have a length slightly shorter than the distance between the upper and lower stoppers 342 and 344 respectively mounted on the inner and lower ends.

It is preferable that the upper and lower ends of the upper and lower sliding rams 360 protrude vertically in a flange shape, and the protrusions are formed to facilitate contact with the upper stopper 342 and the lower stopper 344.

A restraint pocket 362 is formed at approximately the center of the outer circumferential surface of the vertical sliding ram 360. The restraint pocket 362 is to allow one side of the pusher arm 400 to be selectively restrained to be described below, and has a predetermined curvature toward the inside from approximately the center of the vertical length of the vertical sliding ram 360. Depressions are formed.

On the other hand, the pusher arm 400 is to selectively control the operation of the upper and lower sliding rams 360, is provided on the left side of the upper table 100, the upper mold 120 is mounted to the upper table 100 It will maintain a fixed position with.

In this case, a mounting frame 420 is provided between the upper table 100 and the pusher arm 400. The mounting frame 420 supports the pusher arm 400 by being coupled to the upper mold 120 so that both ends thereof are coupled to the pusher arm 400 and the upper table 100.

A rotatable link roller 440 is provided at the left end of the pusher arm 400 adjacent to the vertical sliding ram 360, and the link roller 440 rotates while being in contact with the outer circumference of the vertical sliding ram 360. Done. The link roller 440 is formed to have a curvature similar to that of the restraint pocket 362, and is selectively accommodated inside the restraint pocket 362.

In addition, an elastic member 460, such as a spring, is provided on an outer circumference of the pusher arm 400 on which the link roller 440 is mounted so that the link roller 440 of the pusher arm 400 is the upper and lower sliding rams 360. It provides an elastic force that can be continuously pushed toward).

Accordingly, in the state in which the link roller 440 is in contact with the outer circumferential surface of the vertical sliding ram 360 and rotates, the elastic member 460 is compressed and the link roller 440 is accommodated in the restraint pocket 362. In the elastic member 460 pushes the link roller 440 to the inside of the restraint pocket 362 so that the link roller 440 is completely received.

As a result, the support frame 300 and the vertical sliding ram 360 are moved up and down relative to the pusher arm 400 which maintains a fixed position. At this time, the support frame 300 moves up and down together with the support frame 300. The vertical sliding ram 360 restrains the vertical sliding ram 360 by receiving the link roller 440 in the restraint pocket 362.

On the other hand, the lower side of the vertical sliding ram 360 is provided with a rack (364) and pinion (366) for converting the vertical movement of the vertical sliding ram 360 to the rotational movement, which is detailed in Figures 3 and 4 Is shown.

FIG. 3 is a schematic view schematically showing a state of the up and down sliding ram in FIG. 1, and FIG. 4 is a schematic view schematically showing a state of the up and down sliding ram in FIG. 2. A rack 364 is formed at one side of the outer circumferential surface of the lower half of 360.

That is, a rack 364 having a predetermined length is formed on the front surface of the lower half of the upper and lower sliding rams 360, which is a lower portion of the restraint pocket 362. The rack 364 may be equipped with a separate rack 364 member, and may be formed by processing teeth on the outer circumferential surface of the vertical sliding ram 360 as necessary.

The rack 364 is formed at least longer than a distance at which the vertical sliding ram 360 moves vertically, thereby effectively rotating the relative vertical movement of the vertical sliding ram 360 determined by the pusher arm 400. To switch to.

A pinion 366 coupled to the rack 364 is formed in front of the vertical sliding ram 360. The pinion 366 is coupled to the rack 364 to rotate in accordance with the vertical movement of the vertical sliding ram 360 so that the rotation direction is changed according to the vertical movement of the vertical sliding ram 360.

The pinion 366 is penetrated by the driving shaft 380 and integrally formed with each other, and rotates together with the driving shaft 380 according to the vertical movement of the vertical sliding ram 360. This rotational motion is converted back to horizontal motion, which is shown in detail in FIGS. 5 and 6.

Figure 5 is a plan view showing a reverse state of the take-out arm which is the main configuration of a preferred embodiment of the automatic blank blanking product take-out apparatus according to the present invention, Figure 6 is a main configuration of a preferred embodiment of the automatic blank blanks workpiece take-up device according to the present invention It is a top view which shows the advanced state of phosphorus extraction rock.

As shown in these drawings, rotary couplers 382 are formed at both end portions of the drive shaft 380 that rotates by driving the rack 364 and the pinion 366. The rotary coupler 382 is for transmitting the rotation of the drive shaft 380 to the ball screw assembly 500, one side of the left / right end is coupled to the drive shaft 380, the other side is the ball screw assembly 500 Combined with one end).

The ball screw assembly 500 is provided at both sides with respect to the drive shaft 380 by converting the rotational force transmitted by the drive shaft 380 to a horizontal motion, respectively coupled to the end of the rotary coupler 382 do. The ball screw assembly 500 is fixed to an upper surface of the support part 320 of the support frame 300.

The ball screw assembly 500 is composed of a rotating shaft 520, a nut 540, and a mounting block 560. The rotary shaft 520 is coupled to one end of the rotary coupler 382 to rotate together with the drive shaft 380, the spiral is formed on the outer peripheral surface.

The nut 540 is horizontally moved horizontally along the rotation shaft 520 and is formed by the rotation shaft 520. In addition, a plurality of balls are provided on an inner circumference of the nut 540, and the balls are circulated along the spiral of the rotation shaft 520.

Accordingly, the nut 540 may be smoothly moved from side to side by the rotation of the rotation shaft 520, and a large contact area provided by a plurality of balls is provided, thereby sufficient for operation of the ejection arm 700 to be described below. Force becomes transferable.

In addition, the mounting block 560 is to be fixed to the upper surface of the support portion 320 of the support frame 300, the ball screw assembly 500, is mounted on both ends of the rotary shaft 520, The rotation shaft 520 is mounted to be spaced apart from the upper surface of the support part 320 by a predetermined distance for smooth movement of the nut 540.

On the other hand, the nut 540 is coupled to the transfer connector 580. The transfer connector 580 not only transfers the horizontal motion of the ball screw assembly 500 to the takeout arm 700 which will be described in detail below, but also supports a part of the takeout arm 700.

The second half of the transfer connector 580 (see FIG. 5) is coupled across the bottom and front of the nut 540, and the first half (see FIG. 5) is connected to the bottom of the rear end of the ejection arm 700. It is coupled to support the takeout arm 700 and at the same time is formed to directly transfer the horizontal movement of the transfer connector 580 to the takeout arm 700.

In addition, a guide assembly 600 is provided below the first half of the transfer connector 580 coupled to the takeout arm 700. The guide assembly 600 is for smooth horizontal movement of the takeout arm 700 to support the transfer connector 580 on which the takeout arm 700 is mounted.

The guide assembly 600 includes a rail 620 and a slide block 640. The rail 620 is fixed to the support 320 of the support frame 300 to guide the slide block 640 to stably move horizontally.

The rail 620 and the slide block 640 are combined with each other, and smooth sliding is possible by the bearing provided inside.

The slide block 640 is provided on the upper portion of the rail 620, the upper surface of the slide block 640 is coupled to the lower surface of the first half of the transfer connector 580, the mounting arm 700 is mounted. Accordingly, the horizontal motion transmitted to the takeout arm 700 by the ball screw assembly 500 is transferred to the slide block 640, thereby adjusting the distance between the left and right ends of the takeout arm 700. .

On the other hand, the transmission connector 580 and the guide assembly 600, including the above-described ball screw assembly 500 is configured to be symmetrical to the left and right sides based on the drive shaft 380, respectively, the transmission is provided on the left and right sides The ejection arm 700 is mounted to the connector 580.

The blowout arm 700 is for taking out the processed product by the upper mold 120 and the lower mold 220, and the left and right horizontal motions of the ball screw assembly 500 are converted into front and rear vertical motions. It is formed to take out the workpiece.

The blowout arm 700 is a link structure in which a plurality of rods 720 are connected to each other, and is formed in a structure called 'Java'. Looking at this in more detail, the rod 720 having the predetermined length is coupled to one side of the first half of the transmission connector 580 provided on each of the left and right sides.

At this time, the left / right side of the rod 720 is pinned by the connecting pin 740 in the front end of the left / right side of the transmission connector 580 is freely rotatable. The left and right rods 720 cross each other so as to cross each other, and pins are connected to each other by the connecting pins 740.

The other rod 720 is connected to the other end of the left / right rod 720 coupled to the transfer connector 580, respectively. At this time, the rods 720 connected to each other are formed so that their ends overlap each other, and are pin-coupled by the connecting pin 740 to be free to rotate.

The left and right rods 720 connected to each other cross again with each other, and the intersecting center portion is pin-coupled by the connecting pin 740 so that the additionally coupled rod 720 may be folded at a predetermined position. Will be.

A plurality of rods 720 of the extraction arm 700 are connected to each other, and ends are connected to each other at the left / right sides by the connecting pins 740, and each of the rods 720 crosses the connecting pins. The structure pinned by 740 is repeated.

In this case, the centers of the connecting pins 740 passing through the center portion where the plurality of rods 720 cross each other are all positioned on the same extension line, and the positions thereof are approximately center portions of the left and right widths of the takeout arm 700. Would be preferred.

On the other hand, the rod 720 coupled to the last left / right of the rod 720 of the take-out arm 700 is slightly shorter than the other rod 720, the length of the left / right rod 720 ) Ends are pinned by the connecting pin 740 to cross each other. The position of the connecting pin 740 is located on the same extension line as the other connecting pin 740 located approximately in the center of the extraction arm 700.

And, the push hand 760 is mounted on the left / right rod 720 coupled to the last. The push hand 760 is to push the workpiece in contact with the workpiece when taking out the workpiece located in the lower mold 220, the workpiece is damaged by the movement characteristics of the extraction arm 700 moving at a relatively high speed It will be desirable to be formed of a material that can absorb the impact so as not to.

The shape of the push hand 760 may be differently formed according to the shape of the workpiece. A connection plate for connecting the push hand 760 to the rod 720 may be formed at a rear end of the push hand 760. 780 is formed.

The connection plate 780 protrudes from the rear end of the push hand 760 in a substantially square plate shape, and the center portion of the connection plate 780 crosses the left and right rods 720. It is penetrated by the connecting pin 740 with the end.

In addition, guide grooves 782 are formed in an arc shape at a predetermined angle on the left and right sides of the rear half based on the connecting pin 740, and the guide grooves 782 protrude downward from a corresponding position of the rod 720. The formed guide protrusion 784 is inserted.

Therefore, the push hand 760 is not rotated or inclined to one side even when the guide protrusion 784 moves along the guide groove 782 even when the plurality of rods 720 of the take-out arm 700 are folded. It can be kept in place.

FIG. 7 is a plan view showing the operation of a press in which a preferred embodiment of the automatic blanking apparatus for fine blanks according to the present invention is adopted, and shows the operation of the automatic blank blanking article according to the present invention having the configuration as described above. Referring to 1 to 7 as follows.

When the lower mold 220 moves upward to shear the workpiece while contacting the upper mold 120 and the lower mold 220, the ejection arm 700 is instantaneously contacted with the lower mold 220 and the upper mold 120. It is completely folded so that the push hand 760 is located outside of the mold.

In addition, the lower mold 220 is lowered and at the same time the takeout arm 700 is moved forward to take out the workpiece located on the upper surface of the lower mold (220).

Referring to FIG. 3, the lower mold 220 is completely raised to be in contact with the upper mold 120 so that the lower end of the upper and lower sliding rams 360 is lower than the lower stopper 344. And a link roller 440 of the pusher arm 400 is received in the restraint pocket 362.

The pinion 366 coupled to the rack 364 formed at the lower half of the upper and lower sliding rams 360 is positioned at the upper half of the rack 364.

On the other hand, as the lower mold 220 and the lower table 200 moves downward, the support frame 300 mounted on one side of the lower table 200 also moves downward. In this case, the link roller 440 is accommodated in the restraint pocket 362, and the pusher arm 400 is fixed together with the upper mold 120.

Therefore, the upper and lower sliding rams 360 are maintained at a specific position by the pusher arm 400 apart from the support frame 300 moving downward with the lower mold 220.

Due to this, the pinion 366 fixed to one side of the support frame 300 and moving downward together with the support frame 300 is clockwise in engagement with the teeth of the rack 364 (see FIG. 3). When rotated).

When the upper end of the upper stopper 342 and the upper and lower sliding rams 360 come into contact with each other by the continuous downward movement of the lower mold 220, the upper and lower sliding rams 360 are lowered together with the support frame 300. You will have no choice but to move to.

At this time, the link roller 440 accommodated in the restraint pocket 362 is rotated to leave the restraint pocket 362 by the regulating force of the upper and lower sliding rams 360, and at the same time, the pusher arm 400 is removed. The pressing elastic member 460 is compressed.

The link roller 440 is separated from the restraint pocket 362 is in contact with the outer circumference of the vertical sliding ram 360, the vertical sliding ram 360 is continuously downward with the support frame 300. Will move.

Meanwhile, the rack 364 provided in the upper and lower sliding rams 360 rotates the pinion 366 clockwise until an upper end of the upper and lower sliding rams 360 comes into contact with the upper stopper 342. As the pinion 366 rotates, the drive shaft 380 integrally formed with the pinion 366 rotates.

The rotation force of the drive shaft 380 is transmitted to the rotation shaft 520 of the ball screw assembly 500 by the rotation coupler 382. The nut 540 of the ball screw assembly 500 gradually moves horizontally to both left and right sides by the rotational force transmitted to the left and right sides of the drive shaft 380 to narrow the gap.

As the gap between the left and right nuts 540 is narrowed, the left / right transmission connector 580 connected to the nut 540 is pinched between the rear ends of the ejection arms 700. At the same time, the slide block 640 of the guide assembly 600 supporting the end of the transfer connector 580 and the takeout arm 700 is horizontally moved from side to side along the rail 620 to allow the slide block 580 to move. The gap between the 640 becomes narrow.

The rods 720 on both sides of the rear end of the takeout arm 700 are closed and at the same time, the plurality of rods 720 including the plurality of rods 720 are narrowed to each other, and the rods 720 intersect each other. The intervals between the front and rear are widened by the same interval every time, and are spread out forward.

That is, such a link structure is a work of narrowing the left and right spacing relatively less due to the general characteristics of the link structure intersected in a bellows shape, so that the link structure can be extended by a much longer distance.

 When the ejection arm 700 is unfolded, the lower mold 220 is sufficiently moved downward, and thus the ejection arm 700 is not restricted by the upper mold 120 in extending forward. .

The blowout arm 700 extends while passing through the upper surface of the lower mold 220, and the push hand 760 formed at the front end of the lower arm 220 is a workpiece on the upper surface of the lower mold 220. By pushing forward to take out the workpiece on the upper surface of the lower mold (220).

The push hand 760 mounted to the front end of the take-out arm 700 in contact with the workpiece is expanded at a high speed to mitigate the impact generated when the workpiece is in contact with the workpiece, taking out the workpiece to a certain position by the absorption of the impact. It becomes possible.

On the other hand, when the lower mold 220 is completely moved downward, the blowout arm 700 is also in a completely unfolded state. In addition, after the processing of the workpiece is completed, the lower mold 220 is moved upward to process again.

Referring to Figure 4 with reference to the operating state, the lower mold 220 is completely lowered downward state in the upper end of the vertical sliding ram 360 is in contact with the upper stopper 342, The pusher arm 400 is positioned at the upper half of the vertical sliding ram 360.

The pinion 366 coupled to the rack 364 formed at the lower half of the upper and lower sliding rams 360 is positioned at the lower half of the rack 364.

As the lower mold 220 moves upward, the support frame 300 installed on one side of the lower table 200 on which the lower mold 220 is mounted also moves upward.

At this time, the link roller 440 of the pusher arm 400 is clouded in contact with the outer circumferential surface of the vertical sliding ram 360, and the link relative to the vertical sliding ram 360 moves upward The roller 440 is adjacent to the restraint pocket 362.

Meanwhile, the interaction between the rack 364 and the pinion 366 of the upper and lower sliding rams 360 does not occur until the link roller 440 is accommodated in the constraining pocket 362. The blowout arm also remains in an extended state.

When the lower mold 220 is continuously raised, the link roller 440 of the pusher arm 400 is continuously rotated, and when it comes to the position of the restraint pocket 362, the pusher arm 400 The link roller 440 is accommodated in the restriction pocket 362 by the elastic force of the elastic member 460 provided in the.

Thus, the vertical sliding ram 360 is fixed by the pusher arm 400 regardless of the upward movement of the support frame 300. Therefore, the pinion 366, which is fixed to one side of the support frame 300 and moves upward with the support frame 300, is counterclockwise in engagement with the teeth of the rack 364 (see FIG. 4). When rotated).

The vertical sliding ram 360 maintains the link roller 440 of the pusher arm 400 accommodated in the restriction pocket 362. The support frame 300 moves upward as the lower mold 220 rises, and ascends the lower end of the upper and lower sliding rams 360 in contact with the lower end of the upper and lower sliding rams 360. do.

Meanwhile, the rack 364 provided in the upper and lower sliding rams 360 rotates the pinion 366 in a counterclockwise direction until the lower end of the upper and lower sliding rams 360 comes into contact with the lower stopper 344. As the pinion 366 rotates, the drive shaft 380 integrally formed with the pinion 366 rotates.

The rotational force of the drive shaft 380 is transmitted to the rotation shaft 520 of the ball screw assembly 500 by the rotary coupler 382. The nut 540 of the ball screw assembly 500 gradually moves horizontally to both left and right sides by the rotational force transmitted to the left and right sides of the driving shaft 380 to widen the interval.

As the distance between the left and right nuts 540 is widened, the left / right transmission connector 580 connected to the nut 540 is spaced apart from the rearmost end of the takeout arm 700. At the same time, the slide block 640 of the guide assembly 600 supporting the end of the transfer connector 580 and the takeout arm 700 is horizontally moved from side to side along the rail 620 to allow the slide block 580 to move. The spacing between 640 is widened.

As the rods 720 on both sides of the rear end of the blowout arm 700 are opened, the plurality of rods 720 are widened at right and left intervals, and the intervals at the front and rear are narrowed by the intervals at which they are widened. Each of the rods 720 is folded while being narrowed back and forth by the same interval.

That is, such a link structure can be folded by a relatively much longer distance by a relatively wider left and right spacing operation due to the general characteristics of the link structure crossed in a bellows shape.

In the state where the lower mold 220 is moved upward and the upper mold 120 and the lower mold 220 are in contact with each other, the extraction arm 700 is completely folded, and as shown in FIG. It becomes state and completes one cycle.

The scope of the present invention is not limited to the above-exemplified embodiments, and many other modifications based on the present invention may be made by those skilled in the art within the above technical scope.

In the automatic blank blanking machine take-off apparatus as described above, the shanghai-dong of the lower mold is converted to the rotational motion by using the rack and pinion, and the converted rotational motion is converted into the horizontal motion by the ball screw assembly and the guide assembly. Horizontal movement of the linkage allows the ejection arm of the link structure to be unfolded or folded back and forth to take out the workpiece.

Therefore, there is an effect of reducing the production cost or maintenance cost of a separate power source by changing the mechanical driving method of the shangdong of the lower mold without the need for a separate power.

In addition, by taking out the workpiece by a mechanical driving method without a separate power source, the noise is significantly reduced as compared with the extraction of the workpiece using compressed air, thereby improving the working environment.

In addition, the extraction arm pushes the workpiece in a specific direction, thereby preventing collisions due to the scattering of the workpiece, thereby reducing the product's stamping or scratching, and improving the product quality and productivity. .

In addition, a simple mechanical drive method eliminates the need for a separate control system, which ensures more reliable operation and minimizes errors.

In addition, by using a part of the upper and lower strokes of the existing lower mold, it is possible to operate without affecting the existing operating speed of the lower mold, and active in accordance with the operating speed of the lower mold, thereby improving productivity. You can expect.

In addition, since the lower mold or the upper mold is mounted and applied to one side of the lower table and the upper table, it can be used in various molds, and can be easily attached to and detached from existing press equipment as needed to improve production efficiency. You can expect the effect.

1 is a perspective view showing a reverse state of the ejection arm, which is a main component of a preferred embodiment of a fine blanking machine automatic take-out apparatus according to the present invention;

Figure 2 is a perspective view showing the advanced state of the ejection arm, which is a main component of a preferred embodiment of the automatic fine blanking product take-out apparatus according to the present invention.

FIG. 3 is a schematic view schematically showing a state of the vertical sliding ram in FIG. 1; FIG.

4 is a schematic view schematically showing a state of the vertical sliding ram in FIG.

5 is a plan view showing a reverse state of the ejection arm, which is a main component of a preferred embodiment of the fine blanking apparatus automatic take-out apparatus according to the present invention;

Fig. 6 is a plan view showing the advanced state of the ejection arm, which is a main component of a preferred embodiment of the automatic blank blanking product take-out apparatus according to the present invention;

Figure 7 is a plan view showing the operation of the press is adopted a preferred embodiment of the automatic take-out device of the fine blank workpiece according to the present invention.

Explanation of symbols on the main parts of the drawings

100. Upper table 120. Upper mold

200. Lower table 220. Lower mold

300. Support frame 320. Support

340. Guide section 342. Upper stopper

344. Lower stopper 360. Up and down sliding ram

362. Redemption Pockets 364.

366. Pinion 380. Drive Shaft

382. Swivel Coupler 400. Pusher Arm

420. Mounting frame 440. Link roller

460. Elastic member 500. Ball screw assembly

520. Rotating shaft 540. Nut

560. Mounting Block 580. Transmission Connector

600. Guide assembly 620. Rails

640. Slide Block 700. Blowout Rock

720. Load 740. Connection pin

760. Push Hand 780. Connecting Plate

782.Guide 784.Guide

Claims (12)

In the press consisting of the upper table and the upper mold fixed in position, the lower table and the lower mold for blanking the product by moving up and down, A support frame mounted on one side of the lower table and vertically moving together with the lower table; An up and down sliding ram provided inside the support frame to selectively move up and down together with the support frame; A pusher arm mounted on one side of the upper table to selectively restrain the vertical movement of the vertical sliding ram; It is provided on one side of the support frame, the fine blanking machine automatic take-out device characterized in that it comprises a take-out arm which is folded in accordance with the vertical movement of the vertical sliding ram to take out the workpiece. The method of claim 1, wherein the support frame, A support part coupled to the lower table to support stable mounting; It is formed extending upward from one side of the support portion, automatic blanking machine automatic take-out device characterized in that it comprises a guide for guiding the vertical sliding of the vertical sliding ram. The inner upper end and the lower end of the guide portion, And an upper stopper and a lower stopper for selectively contacting upper and lower ends of the upper and lower sliding rams to limit vertical movement of the upper and lower sliding rams. According to claim 3, One side of the vertical sliding ram, Automatic extraction device for fine blank workpieces, characterized in that the restriction pocket is formed recessed to be selectively accommodated on one side of the pusher arm. [5] The apparatus of claim 4, wherein a rack having a plurality of teeth formed up and down is formed at one side of the upper and lower sliding rams. The apparatus of claim 5, wherein a pinion is formed at one side of the support to be engaged with the rack. According to claim 4, One side of the pusher arm, Rolling motion along the outer circumferential surface of the upper and lower slide rams, the automatic automatic blank blanking apparatus characterized in that it is provided with a link roller that is selectively received into the restraint pocket. According to claim 6, On the left and right sides of the support portion, And a ball screw assembly provided on both sides of the pinion for converting the rotational motion of the pinion into a horizontal motion. The method of claim 8, wherein the left and right sides of the support portion, And a guide assembly for guiding the take-out arm in conjunction with the ball screw assembly. The method of claim 9, wherein one side of the support portion, And a transfer connector for connecting the ball screw assembly and the takeout arm so as to transfer the horizontal and horizontal motions of the ball screw assembly to the takeout arm. The method of claim 10, wherein the extraction arm, A plurality of rods are repeatedly connected to cross each other at the left and right sides, and the automatic blanking blank product take-out device, characterized in that the cross-connected portion is formed in a link structure is pin-connected by a connecting pin. The distal end portion of the blowout arm according to claim 11, It is formed of an impact-absorbing material, automatic push-blanking device for fine blanks, characterized in that it further comprises a push hand to prevent damage to the workpiece when in direct contact with the workpiece.