DE2621322A1 - Rolled sheet metal cutter transfer machine - has four member linkage with sheet grip on receiver table and sheet sensor on feed table - Google Patents

Abstract

The sheet loading arrangement comprises a receiving table which is mounted and located on the axis of the transfer machine, and a four-member linkwork with a sheet grip. The linkwork is constructed to provide for transfering a sheet from a stack onto the table of the feed mechanism along the axis of the machine, the sheet remaining parallel to the table of the feed mechanism during the transfer. Fitted on the table of the feed mechanism is a sensor responsive to the passage of the rearward sheet edge. This sensor provides for measuring the dimensions of blanks from the rearwards sheet edge on the reverse stroke of the feed mechanism.

Description

AUTOMATIC LINE FOR CUTTING ROLLED PLATE

The present invention relates to machining equipment of metal in the malleable state, namely an automatic road for cutting of rolled sheet The present invention can be applied to both the cutting part assembly of the rolled sheet according to the combined, residual section poor pattern men cut) as can also be used for cutting sheet metal into the same sheet metal cut-outs.

It is currently known a plant for sheet metal cutting which from a device for placing the sheet metal package removed from the sheet the table by means of a gripping device, device for feeding sheet metal under the Percussion cutter as well as a device for sorting and stacking the cut ones Sheet metal parts consists, the installation for sheet metal laying includes an apart from the main fixtures, which are supported by a hydraulic plunger cylinder is lifted, and a console sheet metal layer.

The device for feeding sheet metal has a transmitter for the beginning the recording of the sheet dimensions directly from the sheet leading edge as well as a multi-section memory, which contains a section for large sheet metal cut-outs. The devices for the Discarding the sheet metal cut-outs into this store are located in the unloading area the sheet metal cutouts.

The plant mentioned corresponds completely to the process engineering Requirements as well as the possibilities of the automatic cutting process.

Due to the separate lifting plate and the separately standing bracket plate layer but if the transverse dimensions of the system are increased, the construction of the sheet metal layer and the tlubplatte becomes complicated and the straightness of the technological pleating process impaired.

By accommodating the section for large sheet metal cutouts in the Multi-section storage increases the length of the street and the time of the automatic The snowing cycle of the sheets is extended, whereby the performance of the device is reduced will.

The reading of the sheet metal cutout dimensions directly from the sheet leading edge results in an increase in the technological remainder (the remainder sections).

The presence of the discharge devices £ ar sheet metal cut-outs in the Unloading area makes it difficult to remove and unload the finished sheet metal cut-outs from the storage sections and extends the time required for these operations.

The aim of the present invention is to eliminate the aforementioned Disadvantage.

The invention was based on the task of an automatic Road for cutting rolled sheet to develop the automatic and powerful Cutting of the rolled sheet in sheet metal cutouts according to combined cutting patterns Could ensure minimal water and more favorable operating conditions the perfection of the sheet metal laying device, the sorting device and the Elements of the program control system compared to the already known, similar ones automatic systems for cutting sheet metal.

The task at hand is achieved through the development of an automatic one Road for the cutting of rolled sheet solved, consisting of a device for removing the sheet from the sheet package and placing it on the table by means of a gripping device, a device for feeding what has been placed on the table Sheet metal under the guillotine, a device for sorting and stacking of the finished sheet metal cut-outs with a receiving table for intermediate storage the same sheet metal cut-outs, a trolley for conveying these sheet metal cut-outs and a device for dropping the sheet metal cut-outs into a section store as well as a program control system with encoders for monitoring the sheet position and «devices in which the sheet metal laying device according to the invention is one on one Fixed frame and along the axis of the automatic road in front of the Table of the feeding device lying receiving table and a Four-bar device with a gripping tool for the sheet metal, which is arranged on the said frame and so it is designed that the sheet metal from the laminated core is placed on the isch of the feed device is transferred along the axis of the automatic road, with the sheet in the Transmission remains floating parallel to the table plane of the feeding device, which Also attached to the frame mentioned and with a sensor for monitoring the movement of the trailing edge of the sheet, the reading of the dimensions the sheet metal cut-outs from the rear edge of the sheet metal when reversing the feeding device allows, while the longitudinal elements of the frame in question guides for the Represent car on which the device for the dropping of finished sheet metal cutouts is arranged in the storage sections contains.

All elements of the sheet metal laying device, the feeding device and the sorting device carriage are mounted on the common frame. The receiving table of the sheet metal laying device is above the feed device drive and the four-bar device mounted above the feed table. This will be reduces the dimensions of the road and simplifies the construction of these assemblies.

The use of the encoder for the start of the sheet metal dimensions from the rear edge of the sheet metal expands the possibilities of the road, whereby the dimension of the technological remainder (the size of the remaining sections) is reduced to the minimum will.

Due to the arrangement of the drop device on the trolley, the Storage sections more accessible, the unloading the sheet metal cutouts is simplified and the unloading time shortened.

It is useful to frame the automatic road from several to carry out successive sections along the road axis so that each Section Each of the table of the sheet metal laying device, the supports of the four-bar device, has the table of the feeder and the cart of the sorter, The The relevant concept was chosen for the erection of the road facilities to make it more convenient.

The ejection device expediently has the already finished sheet metal cutouts a series of on the trolley parallel to the axis of the automatic line Conveyors whose drive links are on a common drive shaft for synchronous movement the conveyor are arranged, and stops for moving the pulling elements Fastened from finished sheet metal cut-outs from the shooting table to the storage sections The shooting table is set as a series of to the axis of the automatic line ribs arranged in parallel> those with one end on the chisel frame; articulated are attached and are provided at other ends with rollers that are against the Support the trolley freely. It is also desirable that the aforementioned dropping device has a lever designed as a fork, the teeth of which go between the ribs and connect to the fixed scissor knife so that a sloping Forms sliding surface on which the finished sheet metal cutouts slide onto the ribs.

The push lever is designed to be pivotable so that the sheet metal cutouts in the range of the stops can be moved. There is under the car a slide that can be extended and swiveled so that the remaining sections can be removed can be routed to one of the storage sections.

This construction enables the manufacture of individual assemblies and fixture elements, as well as simplifying their operation, the unloading zone of cleared the finished sheet metal cutouts that were required for this operation Time is shortened as well as it is made possible next to the cranes for unloading the sheet metal cut-outs Use of rail-less workshop vehicles (e.g. forklifts).

It is useful to have a pallet for large items above the dropping device Arrange sheet metal cutouts that are parallel along the axis of the automatic road is advanced to move the carriage and can be adjusted in two positions, once on the shear blades to accommodate large sheet metal cut-outs and on the other hand at a distance from the mentioned knives that is sufficient enough to clear the unloading zone so that the already finished sheet metal cut-outs can be placed on the Ribs can run.

This reduces the lengthways dimensions of the road.

The reduction of the XaBe, the improvement of the operating conditions and the shortening of the unloading time of sheet metal cut-outs can be achieved with another possible execution of the throwing device can be achieved.

It is desirable that the ejection device has a slide Contains swiveling pushers that are on a trolley with the possibility of relative Shift along the axis of the automatic road to drop the #lechausschnitte from the Carriage is arranged by the pusher, as well as a # attached to the tiftagen Template with a number of arranged on the frame in the path of the carriage cooperates pivotable stops. One of the stops is used to stop the slide while running the car in the direction of the flickering shear blades and through to move the slide relative to the carriage in the starting position in which the Pusher are guided behind the face of the sheet metal cut-outs. The others The task of stops is to bring the slide to a standstill and the sheet metal cut-outs into the multi-section store while running the car in the direction of the flick shear knives discarding the car with spring-loaded hooks for removing the sheet metal cut-outs from the receiving table and fixing their end faces when moving the slide on the Car is provided in the starting position.

For a better understanding of the invention, a concrete one will be made below Example of its implementation considered with reference to the accompanying drawings; It shows: FIG. 1 overall view of the automatic ropes for cutting the rolled sheet.

Fig. 2 ditto, top view.

Fig. 3 Autetstellung of the pallet for large sheet metal cutouts, side view.

4 overall view of the sorting device for sheet metal cutouts with ejection device, the second variant (with the slide), side view FIG. 5 same as in FIG. 4, top view.

Fig. 6 to 16 - work sequence when dropping the sheet metal cut-outs by means of the ejection device, in the second variant (with the slide).

The automatic line for cutting sheet metal closes one Device 1 (Fig. 1) for placing a sheet 2 removed from the package 3 the table 4, a feeding device the 5 of the sheet metal 2 under "Knife of the guillotine 6 and a device 7 for sorting and stacking the sheet metal cutouts.

The device 1 for laying the sheet metal 2 contains according to the invention one on the common frame 8 (Fig. 2) fixed receiving table 9 and one Four-bar device 100 The receiving table 9 for the laminated core is designed as a stage. The position of the laminated core is fixed by slides 11.

The magnets 12, which form the upper sheet metal, are arranged on the stage allow easier to lift off from the laminated core.

They are stored on rollers and are attached to the front of the top part of the laminated core 3 supplied.

The four-bar device 10 includes side pieces that are hinged are connected with cross pieces. The joints are mounted on a frame 8. At the cross pieces of the compressed air cylinder 13 (Fig.l) is mounted on its rod a gripping device 14 (e.g. vacuum lifting head) is suspended. The gripping device 14 can Rotate through a hydraulic cylinder 15 by 900 in the horizontal plane. For turning (or pivoting) the four-bar device 10 are hydraulic on its side pieces Cylinder 16 attached. The side corners are counterbalanced by counterweights 17 for reduction the size of these cylinders 16 and the amount of pressure oil balanced.

The feed device 5 has a slider 18 which is on two cylindrical guides 19 (Fig. 2) by means of a movement screw 20, a hydraulic booster 21 with an electric stepping drive and a transmission 23 can move. The slider 18 is connected to a slide 24 with a front stop and a sliding tool 25 for clamping and orienting the provided sheet metal conveyed.

An encoder 26 is located on the cutting line of the guillotine 6 (FIG. 1) for reading the sheet metal cut-out dimensions from the sheet leading edge and a Sensor 27 for reading the dimensions of the sheet metal extrusion from the rear edge of the sheet metal, which is mounted on the table 4 of the feeding device 5, is arranged.

The device 7 for sorting and stacking the sheet metal cutouts consists of a receiving table 28 for the already finished cutouts, a carriage 29 with a device 30 for dropping the sheet metal cut-outs into a multi-section store 31 and on the pallet 32 (Fig. 3) for large sheet metal cutouts.

The receiving table 28 is as individual ribs 33 (Fig. 2), which with one ends are attached to the frame of the guillotine 6 by joints and freely support themselves with the other ends via rollers 34 against the carriage 29.

The carriage 29 is designed to be self-propelled and can be guided on guides 35 run, the longitudinal elements of the common frame 8 represent.

Longitudinal bars 36 are attached to the car, which form a fork shape, These longitudinal bars represent guides for the rollers 34. The longitudinal bars 36 can between the ribs 33 of the receiving table 28 when the carriage 29 approaches the guillotine 6 go inside.

The discharge device 30 (Fig.l) consists of a number of conveyors 37 (Fig. 2), the push lever 38 (Fig. 1) and a slide 390 The conveyor 37 (Fig. 2) are arranged on the carriage 29 parallel to the axis of the automatic line. The drive links of these conveyors are arranged on a common drive shaft. This ensures the synchronism of the conveyor belts 37.

The pulling elements are used to convey and drop the sheet metal cut-outs the conveyor 37 attaches the stops 40 (Fig. 1), which are parallel to the secondary shear knives 6 lie on a straight line.

The push lever 38 is fork-shaped and its teeth go between the ribs 33 (FIG. 2) of the receiving table 28. The push lever 38 connects with his teeth on the fixed knife of the guillotine 6t where the inclined surface is formed ~ on which the sheet metal cut-outs on the ribs 33 slide. The push lever 38 is actuated by the compressed air cylinder 41 (FIG. 1).

The slide 39 is housed under the carriage 29 and is through two compressed air cylinders 42 actuated. The cradle 39 is used for unloading the remaining sections into the first section of the store, as seen from the knives of the guillotine shears 6 31, which is intended for this purpose.

The multi-section store 31 contains self-propelled ones standing on the floor Platforms 43, on which packaging 44 and 45 for the sheet metal cut-outs and a box 46 for the remaining sections.

The pallet 32 (Fig. 3) for large sheet metal cutouts is located above the carriage 29 and cylinder 47 is moved by compressed air.

The device 7 for sorting and stacking the sheets with the The ejection device embodied as a second variant has the receiving table 48 (Fig. 4 and 5) with a Xutschbahn 49, the carriage 29 with the throwing device 50 (FIG. 4) and the multi-section memory 31.

The receiving table 48 (FIGS. 4 and 5) and the carriage 29 are fork-shaped educated.

The teeth of the carriage 29 are provided with spring-loaded hooks 51 (Fig. 5), which are designed in such a way that they pass through the lying on the receiving table 48 Sheets are sunk and returned to the starting position under the slide 49 (Fig. 4 and 5).

On the carriage 29 are stencils 52, which are arranged as two on the sides of the Carriage 29 fastened strips are formed, and a carriage 53 is arranged.

There are vertically arranged pushers 54 on the slide 53, which are shown in FIG the conveying direction of the sheet metal cut-outs can be swiveled. The panning the deportation. . 54 is in the opposite direction from the vertical position limited.

On the frame 8 (Fig. 5) are on the sides of the memory 31 (Fig, 4) pivotable stops 55 and 56 (Fig. 4 and 5) attached. These attacks bring the carriage 53 to a standstill, thereby reducing the carriage displacement relative of the car during its movement.

The stops 55 hold the carriage 53 in motion the of the carriage to the guillotine 6, the stops 56 when moving the carriage from this Scissors on.

The frame 8 can also consist of several along the axis of the automatic Street one after the other, each section being the recording table 9 of the device 1 for sheet metal laying, the supports of the four-bar device 10, the table 4 of the feeding device 5 and the carriage 29 of the sorting device has to be executed.

The road works in the following way.

On the receiving table 9 is an output package of sheets that are to are cut up, laid. The package layer is fixed by the slides 11. The magnets 12 are fed to the front of the package.

The information for sheet metal cutting is introduced into the control system according to a combined pattern of cutting parts are necessary (the sketch of a approximate pattern is indicated with fine lines on the table 9, Fig. 2), and Although: dimensions of the sheet metal cut-outs, their number, address of the storage section, where the finished sheet metal cut-outs are conveyed, sheet metal position when it is fed under knife (along and across the table of the feeding device), type of reading the dimensions of the last sheet metal cut-out (from the rear or front edge of the sheet), Size of the hems to be trimmed if the trimming is due to technology.

All subsequent operations are carried out automatically.

The gripper lowers itself on the laminated core 3, grabs the upper one Sheet and places it on the table 4 of the feeding device 50 The sliding piece 18, which is in the final starting position, begins to come together with the carriage 24 and the gripping device 25 in the direction of the guillotine 6 move. As soon as the sheet metal reaches the jaws of the gripping device 25, a signal is emitted for clamping the sheet metal, and the sheet conveyed is attached to the base surface of the front stop of the carriage 24 is used.

After the encoder 26 has been exceeded by the sheet metal leading edge you start with measuring the first sheet metal cutout (or the edge) by reading the pulse beam corresponding to the dimension, which leads to the electrical Step drive 22 is given. After the measuring has been completed, the sheet is stopped and cut. After that, the second, the third and measured further sections.

The already finished cutouts are placed on the ribs 33 of the receiving table 28 supplied, where the same sheet metal cut-outs are saved. Then the air cylinder 41 switched on. He acts on the push lever 38, which the package of finished sheet metal cutouts into the active zone of the stops 40 of the carriage 29, the stops 40 push the sheet metal cutout from the ribs 33 and the carriage 29 moves to the corresponding one Memory section (the address is specified in the program).

The sheet metal cut-outs are also #er in the storage section with the Stop 40 of conveyor # 37 unloaded.

In some cases the movement of the carriage 29 and that of the conveyor fall 37 together, reducing the time of the duty cycle is shortened.

Due to the presence of the receiving table 28 as a buffer For finished sheet metal cut-outs, it is possible to carry out all operations with sheet metal cutting and the sorting of the sheet metal cut-outs are connected to be carried out in parallel.

In a number of cases it is advisable that the last sheet metal cutout is cut by reading its dimensions from the rear edge of the sheet.

The remaining part of the sheet is pushed forward so long until the rear edge of the sheet metal exceeds the encoder 27.

Then, when the feed device is reversed, the encoder 27, which monitors the passage of the trailing edge, a signal to measure the last Sheet metal cutout given, the dimensions of the last sheet metal cutout around the GY size of the distance between the knives of the guillotine 6 and the encoder 27 must be corrected.

The remaining part is then cut from the sheet metal and removed, the sheet metal cutout, however, continues into the predetermined section of the memory 31 promoted.

If large sheet metal parts (over 1 m in length) are cut, the pallet 32 fed by the compressed air cylinder 47 of the guillotine 6 and the Sheet metal cutouts are cut directly into the pallet 32.

When producing the sheet metal cutouts of short length, the Pallet moved so far by the scissors that the resulting distance is sufficient is so that the sheet metal cutouts can run onto the ribs of the receiving table 28.

When manufacturing sheet metal cut-outs of short length can the self-propelled platform 43 along the cutting line for placing another package be moved. These stages are also used when the multi-section store is unloaded 31 used.

The street with a different design variant of the throwing direction works in the following way.

The approach of the carriage 29 to the laminated core 3, its underriding of the package 3 and the movement of the carriage under the package are shown in Figs shown.

The carriage 29 (FIG. 9) is in its starting position the guillotine 6, the hook 51 under the slide 49 and the slide 53 is on the undercarriage to the left end position.

All operations with laying the sheet on the table and its Feeds up to the target dimension are also carried out as explained above.

The finished sheet metal cutouts fall onto the receiving table 48 (Fig. 10). The carriage 29 starts moving from the guillotine 6 and the hooks 51 push the finished sheet metal cutouts from the ribs of the receiving table 48. During the further movement, the templates 52 (FIG. 11) move onto the stop 56 and pivot it so that the stop 56 holds the carriage 53 back.

Since the carriage 29 (FIG. 12) continues to move, the carriage moves 53 on the carriage 29 in the right end position, after which the stops 56 from the template 52 expire and release the carriage 53.

During this displacement, the pushers of the carriage 53 can be free swivel, they lower in the right end position and get behind the front side of the laminated core, When the carriage 29 drives off the guillotine, the stops 55 pivoted by the templates 52 so that they move the carriage 53 together with the carriage 29 do not prevent it, but when driving the carriage to the guillotine stop the carriage 53.

When the sheet metal cut-outs e.g. 0 are unloaded into the last storage section must be, the carriage 29 will only receive a signal to reverse (from the limit switch) then received when he is above this section and drives past the notices, which are arranged above this section.

After reversing the carriage 29 (Fig. 13), the stops 55 are through the template 52 pivoted in the opposite direction and they hold the carriage 53 at.

During the movement of the carriage 29 (FIGS. 14 and 15) to the guillotine shears He passes under the sheet metal cutouts that are held by the pusher 54 and are then thrown into the sections of the memory 31.

The length of the template 52 is selected so that it will be after dropping the sheet metal cut-outs releases the slide 53, which is in the left end position located together with the carriage 29 continues.

While the sheet metal cut-outs are conveyed to the respective storage section the production of sheet metal cutouts of a different kind is running on the receiving table 48 continue from.

The carriage 29 (Fig. 9) drives to the receiving table 48 to new manufactured Take sheet metal cut-outs with you and continue to promote them.

When the carriage 29 moves up to the receiving table 48, the Hook 51 of the trolley sunk through the sheet metal cut-outs on the table, but under the slide 49 they come to the starting position and go behind it Front of the sheet metal cut-outs.

The stops 56 do not stop the carriage 53 while the carriage is traveling 29 to behlagschere ó, but hold it while driving the carriage 29 from the guillotine 6 as described above.

The remaining sections do not necessarily have to be carried with the carriage 29 conveyed, but rather in the notches 46 for remaining sections to be dropped. For this purpose, the slide 49 is designed to be pivotable Blank page

Claims (4)

PATENT CLAIMS: 1. Automatic line for cutting # Välzblech ' consisting of a device for laying the material removed from the laminated core Sheet metal on the table by means of a gripping device, a feeding device of the on the wiped sheet under the guillotine, a device for Sorting and stacking of finished sheet metal cut-outs with a receiving table for the intermediate storage of sheet metal cut-outs of the same dimensions, a trolley for the promotion of these sheet metal cutouts and a device for their dropping into a multi-division memory and a program control system with encoders avi ~ for observing the sheet metal position and # devices, that is to say c h n e t that the device (1) for laying the sheet metal (2) has an orfsfest fixed to a frame (8) and along the axis of the automatic line in front of the wiper (4) of the feeding device (5) arranged receiving table (9) and a four-bar device (10) with a gripping device (14) for the Has sheet metal (2), which is mounted on the relevant frame (8) and executed is that thereby the transfer of the sheet (2) from the laminated core (3) to the Table (4) of the feeding device (5) along the axis of the automatic line is guaranteed, the sheet metal (2) being parallel to the plane during transmission of the table (4) of the feeding device (5) remains, which is also mentioned on frame (8) attached and with an encoder (27) for monitoring the movement of the Rear edge of the plate (2) is provided, which allows the reading of the dimensions of the. Sheet metal cutouts from allows the rear edge of the sheet (2) to be reversed when the feed device (5) is reversed, while the longitudinal elements of said frame (8) guides for the carriage (29) represent on which a device (30) for dropping the already finished sheet metal cutouts is arranged in sections of the memory (31). 2. Automatic road according to claim 1, which is not available note that the frame (3) consists of several along the axis of the automatic Street successively following sections is carried out, in each section each of the receiving table (9) of the Eirrichtung (1) for laying the supports the four-bar device (10), the wiper (4) the guide device (5) and the vases (23) of the sorting device are provided. 3. Automatic road according to claims 1 and 2, d a d u r c h e ek e n n n z e i n e t, doss the device (3C) for dropping finished products Blechaussohnitten has a number of conveyors (37) which are parallel to the carriage (29) are arranged to the axis of the automatic road and their drive members a common drive shaft for synchronizing the conveyor (37) are arranged, and stops (40) on the pulling elements for moving the finished sheet metal center are fixed in the sections of the memory (31) from the receiving table (28), the as a series of ribs parallel to the axis of the automatic line (33) is formed, which with one end on the frame of the top (6 ) are articulated and their other bond with freely supported against the carriage (29) Rollers (34) are provided, and in that the called throwing device (30) has a push lever (38), designed as a fork, whose teeth are between the ribs (33) go in and on the fixed I; eat the scissors ( 6) so that an inclined surface is formed on which the sheet metal cut-outs on the ribs (33) can derive, and the push lever (38) for moving the Sheet metal cutouts are designed to be pivotable in the active zone of the stops (40), wherein a slide (39) is provided under the carriage, which is used to transport the Remaining sections can be pushed out and pivoted to one of the sections of the store (31) is executed. 4. Automatic road according to claims 1 to 3, d a d u r c h g It is not indicated that a pallet (32) is located above the discharge device (3 0) for large sheet metal cutouts arranged so that they are along the axis of the automatic Street parallel to the movement of the carriage (29) shifted and in two positions, once on the knives of the guillotine shears (6) to accommodate large sheet metal cut-outs and on the other hand at a distance from the relevant I # sern, sufficient to clear the zone for the finished sheet metal cutouts tapering towards the ribs (33) can be. p. Automatic road according to claims 1 and 2, d a du r c S. It is noted that the throwing device (50) has a has carriage (53) with pivotable pushers (54) 2, which is on the carriage (29) with the possibility of relative displacement along the axis of the automatic Road for dropping the sheet metal cut-outs from the carriage (29) by the pushers (54) is mounted, as well as a template (52) which is attached to the carriage (29) and with a row of in the path of the carriage (29) on the frame (8) arranged, pivotable stops (55 and a6) cooperates, one of which to stop of the carriage (53) when the carriage (29) is driven by the knives of the guillotine shears (6) and to move the carriage (53) relative to the carriage (29) into the starting position, in which the pusher (54) are guided behind the face of the sheet metal cut-outs, is provided and the other to stop the carriage (53) and drop the Sheet metal cutouts in the multi-section memory (31) when driving the carriage (29) serve the knives of the guillotine shears (6), the 'carriage (29) sprung hooks (51) for removing the sheet metal cut-outs from the receiving table (28) and fixing them Front side when moving the carriage (53) on the carriage (29) into the starting position Has.