EP1380366A1 - Vorschubvorrichtung zum intermittierenden Zuführen eines bandförmigen Rohlings zu einer Presse und Verfahren zum Betrieb derselben - Google Patents
Vorschubvorrichtung zum intermittierenden Zuführen eines bandförmigen Rohlings zu einer Presse und Verfahren zum Betrieb derselben Download PDFInfo
- Publication number
- EP1380366A1 EP1380366A1 EP02015172A EP02015172A EP1380366A1 EP 1380366 A1 EP1380366 A1 EP 1380366A1 EP 02015172 A EP02015172 A EP 02015172A EP 02015172 A EP02015172 A EP 02015172A EP 1380366 A1 EP1380366 A1 EP 1380366A1
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- EP
- European Patent Office
- Prior art keywords
- arm
- dead center
- feed roller
- threaded spindle
- feed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000009423 ventilation Methods 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000003754 machining Methods 0.000 claims description 4
- 210000000078 claw Anatomy 0.000 claims description 2
- 230000002146 bilateral effect Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 238000013022 venting Methods 0.000 claims 1
- 239000002184 metal Substances 0.000 description 7
- 239000000314 lubricant Substances 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 6
- 230000007704 transition Effects 0.000 description 4
- 238000004080 punching Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 210000001520 comb Anatomy 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/08—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers
- B21D43/09—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers by one or more pairs of rollers for feeding sheet or strip material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T152/00—Resilient tires and wheels
- Y10T152/10—Tires, resilient
- Y10T152/10036—Cushion and pneumatic combined
Definitions
- the present invention relates to a feed device for the intermittent feeding of a band-shaped blank to one with tools for intermittent Machining of the band-shaped blank equipped Press
- feed device is a housing and a threaded spindle housing arranged on the housing, an upper feed roller arranged on a harmonic shaft and a lower one arranged on a lower shaft Has feed roller, which determines feed rollers are the blank to be fed by a double-sided To seize clamps and through an intermittent Intermittently advance rotational movement of what waves at least one with an intermittent working electric servo motor is connected to the drive and the harmonic in a via a rocker shaft on Housing hinged rocker is mounted, by means of which it can be moved against and away from the sub-wave is.
- the invention further relates to a method to operate the feed device mentioned at the beginning, which feed device has a control device and cooperates with a press that is moving Has upper tool and a fixed lower tool, which top tool with a between an upper one Dead center position and a bottom dead center position movable plunger is connected, and the one press control has that with the control device of the Feed device is connected, and which the slot of the between an upper dead center position and a lower dead center movable connecting rod has the upper and a lower end, the first arm of the second double-armed lever device via an elongated hole penetrating bolt in engagement with the connecting rod stands, whereby for the insertion of a new ribbon-shaped blank between the upper feed roller and the lower one Feed roller the upper feed roller in a high-vent position is driven to a predetermined in this position Distance between the upper feed roller and the lower feed roller.
- the invention further relates to a method to operate the feed device of the aforementioned Type in which the feed device is a control device and cooperates with a press, which is a moving upper tool and a fixed lower tool has, which upper tool with a between an upper dead center position and a lower one Dead center position movable plunger is connected, and which has a press control device which with the Control device of the feed device in connection stands, and in which the elongated hole between one top dead center position and a bottom dead center position movable connecting rods an upper and a lower end has, the first arm of a first double-armed lever device via a bolt penetrating the elongated hole is engaged.
- a press which is a moving upper tool and a fixed lower tool has, which upper tool with a between an upper dead center position and a lower one Dead center position movable plunger is connected
- a press control device which with the Control device of the feed device in connection stands, and in which the elongated hole between one top dead center position and a bottom
- Another object of the invention is a feed device of the type mentioned at the beginning, which has a control device with a threaded spindle, on which an adjusting nut is arranged and by rotating the threaded spindle along the same is movable, the one driven by a drive motor Has eccentric disc, on which one between one top dead center position and a bottom dead center position movable connecting rod is arranged, which at his at least one end away from the eccentric disk Elongated hole running almost parallel to the threaded spindle has a first, mounted on the adjusting nut double-armed lever device and a second, on a shaft mounted in the threaded spindle housing has double-armed lever device, which first double-armed Lever device a first, engaged with the connecting rod and has a second arm that is hinged to a tab, which in turn is attached to one articulated first arm of the second double-armed lever device is on the second arm a control rod assembly is articulated, which is articulated on the rocker and one between the rocker and the lead screw housing
- the invention further relates to a method to operate the feed device of the aforementioned Type in which the feed device is a control device and cooperates with a press, which is a moving upper tool and a fixed lower tool has, which upper tool with a between an upper dead center position and a lower one Dead center position movable plunger is connected, and which has a press control that with the control device the feed device is connected, and in which the elongated hole between an upper Dead center position and a lower dead center position movable Connecting rods have an upper and a lower end, the first arm of the first double-armed lever device engages via a bolt penetrating the elongated hole stands with the connecting rod, being used to insert a new one ribbon-shaped blank between the upper and the lower Feed roller the upper feed roller in a high-vent position is driven to a predetermined in this position Distance between the upper feed roller and the lower feed roller.
- a press which is a moving upper tool and a fixed lower tool has, which upper tool with a between an upper dead
- the invention also relates to a method for Operation of the feed device of the aforementioned Type in which the feed device is a control device and cooperates with a press that a moving upper tool and a fixed lower tool has, which upper tool with a between an upper dead center position and a lower one Dead center position movable plunger is connected, and which has a press control device which with the Control device of the feed device in connection stands, and in which the elongated hole between one top dead center position and a bottom dead center position movable connecting rods an upper and a lower end has, the first arm of the first double-armed lever device via a bolt penetrating the slot is in engagement with the connecting rod, the band-shaped Blank has a predetermined thickness and one Distance between the upper feed roller and the lower feed roller is set to intermittent Push the ribbon-shaped blank through these rollers apply a predetermined clamping force to the same is exercised.
- the invention also relates to a method for Operation of the feed device of the aforementioned Type in which the feed device is a control device and cooperates with a press that a moving upper tool and a fixed lower tool has, which upper tool with a between an upper dead center position and a lower one Dead center position movable plunger is connected, and which has a press control that with the control device the feed device is connected, and in which the slot of the between an upper Dead center position and a lower dead center position movable Connecting rods have an upper and a lower end, the first arm a first double-armed lever device via a bolt penetrating the elongated hole in The connecting rod is engaged, which tappet from one rotating drive is driven and the eccentric of the connecting rod is driven by a drive motor which Upper tool catch pins for precise positioning of the band-shaped blank in the press during the machining process same, which catch pins in pre-punched positioning holes in the band-shaped blank are moved in, which catch pins a conical Have head section, the upper feed roller then away
- the presses mentioned here are special high-speed presses with stroke rates up to 2000 Strokes / minute. These presses are with tools for machining one (or more) fed band-shaped Blanks equipped, whereby punching, embossing, Bending work, riveting, making threads, etc. are carried out.
- the movement of the ribbon-shaped blank, the edited in the press takes place intermittently, so gradually.
- a processing step e.g. a punching
- the band-shaped blank After finishing the processing step, after, for example, a punch has been moved out of the punched hole is the band-shaped blank by a predetermined Line advanced and stopped again so that the next processing step can.
- Feed movement of the band-shaped Blanks are made by one (or more, at Inlet and feed arranged at the outlet of the press or feed device (or feed devices) to the ribbon-shaped blank intermittently from a supply roll deduct and feed to the press.
- These feeders usually have Feed links to advance the ribbon-shaped blank. This is clamped by the feed links and moved forward. If the feed links again return to their starting position, the clamping canceled. The clamping is additionally during that period of time, during which the tools on the strip-shaped blank one processing step perform, especially in the case of lanyards.
- feeders with electrical Servomotors become known. There is a first servo motor the feed operation of the clamping members and another, second servo motor for intermittent take off assigned a clamping member or ribbon-shaped blank. Such servomotors are manufactured by several companies and sold. The operation of these servo motors is electronically controlled.
- These new feeders show completely cylindrical, as feed links Shafts arranged feed rollers that are intermittent always rotate in the same direction. From these feed rollers is one in one with the other servo motor component connected to the drive, due to its operation this feed roller against the band-shaped blank to clamp it and move it away for release becomes.
- the frame is a lead screw housing has, in which the threaded spindle is arranged is which threaded spindle is rigid with a sleeve part is connected, which is free of play in the threaded spindle housing via roller bearings is mounted so that the threaded spindle is supported without play in the threaded spindle housing.
- Yet another object of the invention is one Show device in which the with the threaded spindle rigidly connected sleeve part of a multi-part Clamping sleeve is in which the drive shaft is further Servo motor protrudes so that the drive shaft further servo motor with the threaded spindle is connected with what when mounting the further Servo motor by connecting its drive shaft to the threaded spindle over the adapter sleeve the final position of the servo motor by the in the threaded spindle housing precisely positioned threaded spindle is determined.
- Another object of the invention is also a Procedure for adjusting the upper air position To show feed roller, which with the fixed Conrod the adjusting nut by rotating the threaded spindle is lowered until the bolt at the bottom of the elongated hole, with which the first arm of the first double-armed lever device pivoted down and whose second arm is pivoted up, consequently the control rod arrangement lifted up and thus the swingarm with the the upper roller stored in it in the raised position of the upper feed roller is pivoted.
- Yet another object of the invention is a Method for operating the feed device mentioned at the beginning to create, in which the connecting rod in its lower Dead center position is moved, the adjusting nut shifted downwards by rotating the threaded spindle until the upper feed roller due to the by the Pressure springs exerted pressure on the rocker band-shaped blank rests, and then the adjusting nut is pushed further down until the bolt of has a distance between both ends of the elongated hole, so that the connecting rod's stroke movements when the bolt is stationary are possible.
- Yet another object of the invention is a Method for operating the feed device of the beginning to create the type mentioned, in which to hire the intermediate air position of the plunger through its rotating drive in an angular position in front of its lower Dead center position is brought in what angular position the tapered head portions of the catch pins only partially protrude into the positioning holes, and the Eccentric disc of the connecting rod in an angular position the top dead center is brought, the angular distance of the ram between the mentioned angular position and the bottom dead center position equal to the angular distance the eccentric disc between their named Angle position and the top dead center position is afterwards the threaded nut is moved down until the band-shaped blank due to the lifting of the upper feed roller is loose, and that the position of the adjusting nut for the specified angular position of the eccentric disc and the corresponding angular position of the ram in the corresponding control devices are stored.
- the adapter sleeve Due to the formation of the adapter sleeve, the is an integral part of the threaded spindle, there is Freedom to choose different servo motors and to assemble, and in particular standardized standard motors, since there are no specially designed drive shafts Servomotors are necessary.
- the feed device must be designed basically perform 3 main functions, namely the Ventilation (insert tape), the tape thickness setting (the upper roller lies on the belt, play in the slot connecting rod) and intermediate ventilation (belt ventilation before each Punching process).
- the device has a housing 1. On first servo motor 2, of which the electronic one is simplified Control 3 is indicated, is with its flange 4 flanged to housing 1 via screw bolts 5.
- This first servo motor 2 is known per se Controlled in such a way that it is gradually intermittent Executes rotary movements. The duration and that The extent of each step of the rotary movement depending on the in the downstream press controlled processing to be performed.
- This servo motor 2 has a drive shaft 6.
- the harmonic is in an axial servo motor side first shaft section 8 and one in one axial distance from this first shaft section 8 split second shaft section 9 remote from the servo motor. Between these shaft sections 8, 9 is one upper feed roller 10 held clamped.
- the second shaft section 9 remote from the servo motor is of a clamping screw 11 supported on it axially interspersed with the servo motor side, first Shaft section 8 is in screw engagement.
- This upper feed roller 10 which consists of several Parts exists and is very light, shows Shape of a hollow circular cylinder with an axial interior 12 with an inner peripheral wall 13 and two end face portions 14 and 15. See Figure 3.
- the transition area 16 between the end surface portion 14 and the inner peripheral wall 13 of the interior 12 has the shape of a truncated cone.
- the transition region 17 between the End face portion 15 and the inner peripheral wall 13 of the Interior 12 in the form of a truncated cone.
- the facing ends of the shaft sections 8, 9 also have a frustoconical shape Section 18 and 19 respectively.
- the sub-wave 20, 21 is also in one axially servo motor side, first shaft section 20 and one at an axial distance from this first shaft section 20 arranged second servo-remote shaft section 21 divided. Between these wave sections 20, 21, the lower feed roller 22 is clamped held.
- the second shaft section remote from the servo motor 21 is of a tensioning screw supported on it 23 axially interspersed with the servo motor side, first Shaft section 20 is in screw engagement.
- This lower feed roller 22 which consists of several Parts exists and is very light, shows Shape of a hollow circular cylinder with an axial interior 24 with an inner peripheral wall 25 and two end face portions 26 and 27 on.
- transition area 28 between the end surface portion 26 and the inner peripheral wall 25 of the interior 24 has the shape of a truncated cone.
- transition area 29 between the End face portion 27 and the inner peripheral wall 25 of the Interior 24 in the form of a truncated cone.
- the facing ends of the shaft sections 20, 21 also have a frustoconical shape Section 30 and 31 respectively.
- the servo motor side, first section 8 of the Harmonic and the servo motor-side first section 20 the sub-wave remain in place, such as in the figure 2 is shown. So you will not be moved.
- the second section 9 of the harmonic remote from the servo motor and the second section 21 of the sub-shaft remote from the servomotor are in the direction with loosened clamping screws 11, 23 the arrow C has been axially shifted. With that lie the Feed rollers 10, 22 free and can be removed from the shafts become. It should be noted that in FIG. 3 the axial distances between the components are exaggerated are. The free space between the respective sections that means their distance must only be so large be that the rollers for removal in the radial direction can be moved freely.
- the first section 8 of the harmonic on the servo motor side is a roller bearing 32 in a to be described Rocker 33, i.e. the swing section 33a stored.
- the lubricant space of the roller bearing 32 is by means of Seals 34a, 34b sealed.
- the second section 9 of the servomotor Harmonic is via roller bearings 35 in the rocker section 33b stored.
- the lubricant chamber of the roller bearing 35 is by means of Seals 36a, 36b sealed.
- the servo motor side, first section 20 of the The lower shaft is mounted in the housing 1 via a roller bearing 36.
- the lubricant chamber of the roller bearing 36 is by means of a seal 37 sealed.
- the second section 21 of the servomotor The lower shaft is mounted in the housing 1 via roller bearings 38 and 92.
- the lubricant chamber of the roller bearing 38 is by means of Seals 39a, 39b sealed.
- the harmonic stored in the rocker 33 the means exactly that which is mounted in the rocker section 33a servo motor side, first shaft section 8 of the harmonic in drive connection with the first servo motor 1.
- the first shaft section 8 is with a Oldham coupling 40 connected, of which in Fig. 7b the cross disk 41 is shown separately.
- This Oldham clutch 40 is necessary because the first wave section 8 (and obviously all related to it Parts of the device) transverse movements relative to the stationary Performs drive shaft 6 of the servo motor 2.
- This Oldham coupling 40 is from an upper one Spur gear 42 followed that with a lower spur gear 43 combs, which with the servo motor side, first Shaft section 20 of the sub-wave is connected.
- clamping sleeve parts 44, 45 take place by means of ring clamping elements 46.
- the clamping screws are shown with the reference number 47.
- the upper spur gear 42 is integral with the second adapter sleeve part 45, with which one considerable savings in moving masses is achieved.
- the servo motor is close Part of the Oldham coupling also in one piece the second adapter sleeve part 45 is formed.
- a still further preferred embodiment is in of Figures 8, 9, 9a.
- the top roller 10 is frictionally engaged with the metal belt rotates.
- This version is the servo motor side second shaft section 20 of the sub-shaft from the servo motor 2 driven.
- This wave section is 20 formed in one piece with the second adapter sleeve part 45, so that there is again a minimal rotating mass.
- a further servo motor 48 On a threaded spindle housing 67 is a further servo motor 48 arranged. Its electronic Control, i.e. the housing of which is indicated at 49.
- This servo motor 48 is used to drive one Threaded spindle 50.
- the servo motor 48 is only one example to consider the drive of the threaded spindle 50. There can also be 48 different drives from the servo motor to be available.
- the drive shaft of the servo motor 48 is indicated with the reference number 51.
- the connection between the drive shaft 51 of the servo motor 48 and the threaded spindle 50 takes place by means of a multi-part adapter sleeve, a first clamping sleeve part 52, a second Has clamping sleeve part 53 and ring clamping elements 54.
- the Collet parts 52, 53 are tightened by means of clamping screws 55 excited against each other.
- the second clamping sleeve part 53 is a Claw coupling 113 connected to the threaded spindle 50.
- the threaded spindle 50 is in turn via roller bearings 56 and 112 stored in the threaded spindle housing 67 or housing 1.
- the threaded spindle 50 is thus independent stored by the servo motor 48 without play.
- ring clamping elements for connection can serve with the smooth motor shaft, a standardized Servo motor, i.e. not a special design, used become.
- this adjusting nut 57 On this adjusting nut 57 is a double-armed Lever 93 with a first arm 94 and a second Arm 95 stored.
- This lever 93 is used here Description text referred to as the second double-armed lever 93.
- Adjusting nut 57 has a square cross-sectional shape and also in a square cross-sectional shape having the interior of the first double-armed Lever 93 is inserted. This is the adjusting nut 57 secured against twisting.
- This connecting rod 96 sits on an eccentric disc 97, via a shaft 98 with a third drive motor 99, for example a servo motor, connected to the drive is.
- the control of the drive motor is indicated with the reference number 100.
- the second arm 95 of the first double arm Lever 93 is a via a tab 101 on the first arm 102 second double-armed lever 103 articulated.
- the second double-armed lever 103 is mounted on a shaft 60.
- the second arm 104 of the second double-armed lever 103 is fork-shaped, as in FIGS. 4 with the reference numerals 65, 66 denoting the fork levers is shown.
- the shaft 60 is in the threaded spindle housing 67 sealed oil-tight by means of seals 61, 62, so that a closed threaded spindle housing 67 as a closed Lubricating oil space is available, in which the threaded spindle 50 and the components described are maintenance-free are arranged in a closed room.
- the control rods are at their lower end articulated on the rocker 33.
- the rocker 33 in which the upper feed roller 10 is stored, is at its other end connected to a shaft 79.
- This shaft 79 is in the housing 1 stored.
- the bearings 80, 80a are in FIG. 5 located.
- FIG. 6 also shows the belt infeed table 81 and the belt exit table 82, on which tables the metal band 7 on both sides of the lower one Feed roller 22 rests.
- the rocker 33 is by compression springs 83, 84 stretched against the lower feed roller 22.
- the contact pressure of the compression springs 83, 84 is by means of threaded spindles 85, 86 and lock nuts 87, 88, which are supported on the threaded spindle housing 67.
- the contact pressure is set with Help reading the position of the on the compression springs 83, 84 disks 89, 90 on scale 91. Obviously is a scale for the compression springs 83, 84 assigned.
- This feed device is shown in FIG and the press 76 assigned to it, a punch press, schematically recorded.
- the punch press 76 has a drive 77 on.
- This drive 77 can, as is generally known to the person skilled in the art is known to have an electric motor that a Has crankshaft or a shaft with eccentric discs.
- This crankshaft or eccentric is in Drive connection with a connecting rod 78.
- a plunger 105 is articulated.
- the plunger 105 carries an upper tool 106, which consequently operates the punch press 76 is moved up and down.
- the upper tool 106 is with processing tools, e.g. Stamp 107 equipped.
- Next is the upper tool 106 with catch pins 108 equipped, each with a conical head section 109 have.
- the processing tools e.g. the stamp 107 on the band-shaped blank 7 for actual processing the pre-punched pins 108 Holes in the blank 7 moved in to precisely this Center.
- the upper feed roller 10 is of the lower feed roller 22 briefly around a small distance lifted off so that no clamping force on the band-shaped Blank 7 is exercised. This position of the top Feed roller 10 is referred to as the intermediate release position.
- control devices 49, 110 of the feed device and the punch press 76 communicate with each other since the operation of the feed device matched to the operation of the punch press 76 have to be.
- FIG. 10 The positions of FIG. 10 are schematic shown parts of the feed device shown in continuous operation. Rotate in continuous operation the upper feed roller 10 and the lower feed roller 22, which are driven intermittently by the servomotor 2, so that the ribbon-shaped blank 7 as general is known, is gradually advanced. It works the (electronic) control device 49 of the feed device with the (electronic) control device 111 a punch press 76 together, see Figure 13.
- the Stamping press 76 has a moving upper tool 106 and a fixed lower tool 110.
- the top tool 106 is connected to a plunger 105.
- the ram 105 is driven by a rotating drive 77, e.g. electric motors and crankshaft or eccentric shaft, via a connecting rod 78 driven, the connecting rod 78 purely schematically the Drive connection between the drive 77 and the plunger 105.
- the pestle is between an upper one Dead center position and a lower dead center position are movable.
- the thickness of the band-shaped blank 7 and accordingly the distance between the upper feed roller 10 and the lower feed roller 22 is in the Figure 10 shown with the letter E.
- the upper feed roller 10 To a new ribbon-shaped blank 7, so for example a metal band between the upper feed roller 10 and the lower feed roller 22 to be able to, the upper feed roller 10 must be raised so that they are a predetermined distance D from the has lower feed roller 22, which is larger than that Distance E is. This distance D and the raised one The position of the upper feed roller 10 is shown in FIG. 11 shown.
- This position of the feed roller 10 is in referred to in the professional world as a ventilation position.
- control devices 49 and 111 of the feed device and the punch press 76 operated such that the ram 105 of the punch press from the bottom dead center position away and that the connecting rod 96 from top dead center.
- the bolt 58 is due to the Compression springs 82, 84 via the rocker 33 and the lever devices 93 and 103 at the lower end of slot 59 on.
- Adjusting nut 57 Due to the downward movement of the Adjusting nut 57 becomes the first arm 94 of the first double-armed Lever device 93 pivoted up and her second arm 95 pivoted downwards. That second arm 95 pulls the first arm 102 of the second double-armed lever device 103 also down. Thus the second arm 104 of the second double-armed lever device 103 pivoted upwards. Consequently, the control rod assembly 68-75 lifted up and thus the rocker 33 with the upper feed roller 10 stored therein in the Lifting position of the upper feed roller 10 pivoted, at which the distance D from the bottom Has feed roller 22, so that a new band-shaped Blank 7 can be inserted.
- the upper feed roller must be used for continuous operation 10 lie on the band-shaped blank 7, wherein through the upper feed roller 10 and the lower feed roller 22 a clamping force for a frictional engagement on the band-shaped blank 7 must be exercised.
- Another movement during operation the feed device with the punch press is the intermediate air movement.
- the band-shaped blank 7 are exposed for a short period. This means that the upper feed roller 10 is brief from the band-shaped blank 7 in an intermediate ventilation position must be lifted off.
- This intermediate ventilation position is controlled by the Connecting rod 96 causes.
- the punch press 76 is in the lifting position driven at which the intermediate ventilation takes place and in what position the conical head sections 109 of the catch pins 108 partially into the positioning holes are retracted. This position can be seen in Figure 13.
- the plunger is in this position 105 of the punch press 76 in an angular position in front of lowest dead center position. Between this angular position and the bottom dead center position is thus an angular distance available.
- the connecting rod 96 of the feed device is now at the same time by actuating its drive motor 99 in a position before its top dead center position been moved up. So is between this angular position and the top dead center position also an angular distance available.
- the adjusting nut 57 is rotated the threaded spindle 50 moves down. With that comes the bolt 58 to rest against the lower end of the elongated hole 59. The adjusting nut 57 is then further down moved so that due to the swivel movements now taking place the lever devices and the rocker 33 die upper feed roller 10 releases the band-shaped blank. In this released state, the ribbon-shaped blank is manually lockable loose. This position of the adjusting nut 57 together with the relevant angular positions stored in the control devices 49 and 111.
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Abstract
Description
Claims (11)
- Vorschubvorrichtung zum intermittierenden Zuführen eines bandförmigen Rohlings (7) zu einer mit Werkzeugen zum intermittierenden Bearbeiten des bandförmigen Rohlings (7) ausgerüsteten Presse, welche Vorschubvorrichtung ein Gehäuse (1) und ein auf dem Gehäuse (1) angeordnetes Gewindespindelgehäuse (64), eine auf einer Oberwelle (8, 9) angeordnete obere Vorschubwalze (10) und eine auf einer Unterwelle (20, 21) angeordnete untere Vorschubwalze (22) aufweist, welche Vorschubwalzen (10, 22) dazu bestimmt sind, den zuzuführenden Rohling (7) durch ein beidseitiges Klemmen zu ergreifen und durch eine intermittierende Rotationsbewegung intermittierend vorzuschieben, von welchen Wellen (8, 9; 20, 21) mindestens eine mit einem intermittierend arbeitenden elektrischen Servomotor (2) antriebsverbunden ist und die Oberwelle (8, 9) in einer über eine Schwingenwelle (79) am Gehäuse angelenkten Schwinge gelagert ist, mittels welcher sie gegen die Unterwelle (20, 21) und von derselben weg bewegbar ist, gekennzeichnet durch einen Motor (48) mit einer Gewindespindel (50) und eine Steuervorrichtung (49), auf welcher Gewindespindel (50) eine Verstellmutter (57) angeordnet und durch ein Rotieren der Gewindespindel (50) entlang derselben bewegbar ist, durch eine von einem Antriebsmotor (99) getriebene Exzenterscheibe (97), auf welcher ein Pleuel (96) gelagert ist, der beim von der Exzenterscheibe (97) entfernten Ende ein mindestens annähernd parallel zur Gewindespindel (50) verlaufenden Langloch (59) aufweist, durch eine erste, auf der Verstellmutter (57) gelagerte doppelarmige Hebelvorrichtung (93, 94, 95) und eine zweite, auf einer im Gewindespindelgehäuse (64) getragenen Welle (60) gelagerte doppelarmige Hebelvorrichtung (103; 102; 104), welche erste doppelarmige Hebelvorrichtung (93; 94, 95) einen ersten (94), im Eingriff mit dem Pleuel (96) stehenden und einen zweiten Arm (95) aufweist, der an einer Lasche (101) angelenkt ist, die ihrerseits an einem ersten Arm (102) der zweiten doppelarmigen Hebelvorrichtung (103; 102, 104) angelenkt ist, an deren zweiter Arm (104) eine Steuerstangenanordnung (68-75) angelenkt ist, welche an der Schwinge (33) angelenkt ist, und durch eine zwischen der Schwinge (33) und dem Gewindespindelgehäuse (67) angeordnete Druckfederanordnung (82, 84), welche die Schwinge (33) mit der darin gelagerten Oberwelle (8, 9) mit der oberen Vorschubwalze (10) gegen die Unterwelle (20, 21) mit der unteren Vorschubwalze (22) anpresst.
- Vorschubvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Gewindespindel (50) über Wälzlager (56, 112) spielfrei im Gewindespindelgehäuse (67) und dem Rahmen (1) gelagert ist, so dass die Gewindespindel (50) präzis positioniert ist.
- Vorschubvorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass der Hülsenteil (53) Teil einer mehrteiligen Spannhülse (52, 53, 54) ist, in welche die Antriebswelle (51) eines Verstellmotors (48) einer Stellvorrichtung hineinragt, gekennzeichnet durch einen Verstellmotor (48) mit einer Antriebswelle (51), welche über eine mehrteilige Spannhülse (52, 53, 54), gefolgt von einer Klauenkupplung (113) mit der Gewindespindel (50) antriebsverbunden ist.
- Vorschubvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der zweite Arm (104) der zweiten doppelarmigen Hebelvorrichtung (103; 102, 104) als Gabelhebel (65, 66) ausgebildet ist, der über Kugelkopfverbindungen an jeweils einer ein Teil (68; 69) der Steuerstangenanordnung (69-75) bildenden Steuerstange (71, 72) angelenkt ist.
- Vorschubvorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die Welle (60) mittels Dichtungsringen (61, 62) gegenüber dem Gewindespindelgehäuse (67) öldicht abgedichtet ist, so dass das Gewindespindelgehäuse (67) einen geschlossenen Ölraum bildet.
- Vorschubvorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass jede Steuerstangenanordnung (68-75) zur Längenverstellung miteinander verschraubte Stangenabschnitte (68, 70, 69, 71) aufweist.
- Vorschubvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der erste Arm (94) der ersten doppelarmigen Hebelvorrichtung (93; 94, 95) über einen das Langloch (59) durchsetzenden Bolzen (58) im Eingriff mit dem Pleuel (96) steht.
- Verfahren zum Betrieb der Vorschubvorrichtung nach Anspruch 1, bei welchem die Vorschubvorrichtung eine Steuervorrichtung (49) aufweist und mit einer Presse (76) zusammenwirkt, die ein bewegtes Oberwerkzeug (106) und ein feststehendes Unterwerkzeug (110) aufweist, welches Oberwerkzeug (106) mit einem zwischen einer oberen Totpunktstellung und einer unteren Totpunktstellung bewegbaren Stössel (105) verbunden ist, und die eine Pressensteuervorrichtung (111) aufweist, die mit der Steuervorrichtung (49) der Vorschubvorrichtung in Verbindung steht, und bei welchem das Langloch (59) des zwischen einer oberen Totpunktstellung und einer unteren Totpunktstellung bewegbaren Pleuels (96) ein oberes und ein unteres Ende aufweist, der erste Arm (94) der ersten doppelarmigen Hebelvorrichtung (93; 94, 95) über einen das Langloch (59) durchsetzenden Bolzen (58) im Eingriff mit dem Pleuel (96) steht, wobei zum Einführen eines neuen bandförmigen Rohlings (7) zwischen der oberen Vorschubwalze (10) und der unteren Vorschubwalze (22) die obere Vorschubwalze (10) in eine Hochlüftposition gefahren wird, um in dieser Position einen vorgegebenen Abstand (D) zwischen der oberen Vorschubwalze (10) und der unteren Vorschubwalze (22) festzulegen, dadurch gekennzeichnet, dass zum Einstellen der Hochlüftposition der oberen Vorschubwalze (10) die genannten zwei Steuervorrichtungen (49; 111) derart gesteuert werden, dass der Stössel (105) in seine obere Totpunktstellung und der Pleuel (96) in seine untere Totpunktstellung gesteuert wird.
- Verfahren nach Anspruch 8, dadurch gekennzeichnet, dass bei feststehendem Stössel (105) und feststehenden Pleuel (96) die Verstellmutter (57) durch ein Rotieren der Gewindespindel (50) abgesenkt wird, wobei der Bolzen (58) aufgrund der von der Druckfederanordnung (82, 84) ausgeübten, über die Schwinge 33 und die Hebelvorrichtungen (93; 94, 95 und 103; 102, 104) einwirkenden Kraft am unteren Ende des Langloches anliegt, womit der erste Arm (94) der ersten doppelarmigen Hebelvorrichtung (93; 94, 95) hochgeschwenkt und deren zweiter Arm (95) nach unten geschwenkt wird, der erste Arm (102) der zweiten doppelarmigen Hebelvorrichtung (103; 102, 104) nach unten geschwenkt und der zweite Arm (104) nach oben geschwenkt wird, folglich die Steuerstangenanordnung (68-75) aufgrund dieser Schwenkbewegungen hochgehoben und damit die Schwinge (33) mit der darin gelagerten oberen Vorschubwalze (10) in die Hochlüftposition der oberen Vorschubwalze (10) geschwenkt wird.
- Verfahren zum Betrieb der Vorschubvorrichtung nach Anspruch 1, bei welchem die Vorschubvorrichtung eine Steuervorrichtung (49) aufweist und mit einer Presse (76) zusammenwirkt, die ein bewegtes Oberwerkzeug (106) und ein feststehendes Unterwerkzeug (110) aufweist, welches Oberwerkzeug (106) mit einem zwischen einer oberen Totpunktstellung und einer unteren Totpunktstellung bewegbarer Stössel (105) verbunden ist, und die eine Pressensteuervorrichtung (111) aufweist, die mit der Steuervorrichtung (49) der Vorschubrichtung in Verbindung steht, und bei welchem das Langloch (59) des zwischen einer oberen Totpunktstellung und einer unteren Totpunktstellung bewegbaren Pleuels (96) ein oberes und ein unteres Ende aufweist, der erste Arm (94) der ersten doppelarmigen Hebelvorrichtung (93; 94, 95) über ein das Langloch (59) durchsetzenden Bolzen (58) im Eingriff mit dem Pleuel (96) steht, dadurch gekennzeichnet, dass der Pleuel (96) in eine von seiner oberen Totpunktstellung entfernte Stellung bewegt wird, die Verstellmutter (57) durch ein Rotieren der Gewindespindel (50) abwärts verschoben wird, bis die obere Vorschubwalze (10) aufgrund der durch die Druckfedern (82, 84) auf die Schwinge (33) ausgeübten Druck auf dem bandförmigen Rohling (7) aufliegt, in welcher Stellung der Bolzen (58) von beiden Enden des Langloches (59) einen Abstand aufweist, so dass Hubbewegungen des Pleuels (96) bei feststehendem Bolzen (58) ermöglicht sind.
- Verfahren zum Betrieb der Vorschubvorrichtung nach Anspruch 1, bei welchem die Vorschubvorrichtung eine Steuervorrichtung (49) aufweist und mit einer Presse (76) zusammenwirkt, die ein bewegtes Oberwerkzeug (106) und ein feststehendes Unterwerkzeug (106) mit einem zwischen einer oberen Totpunktstellung und einer unteren Totpunktstellung bewegbaren Stössel (105) verbunden ist, und die eine Pressensteuervorrichtung (111) aufweist, die mit der Steuervorrichtung (49) der Vorschubvorrichtung in Verbindung steht, und bei welcher das Langloch (59) des zwischen einer oberen Totpunktstellung und einer unteren Totpunktstellung bewegbaren Pleuels (96) ein oberes und ein unteres Ende aufweist, der erste Arm (94) der ersten doppelarmigen Hebelvorrichtung (93; 94, 95) über einen das Langloch (59) durchsetzenden Bolzen (58) im Eingriff mit dem Pleuel (96) steht, welcher Stössel (105) von einem rotierenden Antrieb (77) getrieben ist und die Exzenterscheibe (97) des Pleuels (96) von einem Antriebsmotor (99) getrieben ist, welches Oberwerkzeug (106) Fangstifte (108, 109) zum präzisen Positionieren des bandförmigen Rohlings (7) in der Presse (76) während dem Bearbeitungsvorgang derselben aufweist, welche Fangstifte (108, 109) in vorgestanzte Positionierlöcher im bandförmigen Rohling (7) hineinbewegt werden, und welche Fangstifte (108, 109) einen konischen Kopfabschnitt (109) aufweisen, wobei die obere Vorschubwalze (10) dann von der unteren Vorschubwalze (22) weg in eine Zwischenlüftstellung aufweist, bewegt wird, wenn die konischen Kopfabschnitte (109) teilweise in die Positionierlöcher eingefahren worden sind und danach wieder auf den Rohling (7) abgesetzt wird, wenn die konischen Kopfabschnitte (109) teilweise aus den Positionslöchern ausgehoben worden sind, dadurch gekennzeichnet, dass zur Einstellung er Zwischenlüftstellung der Stössel (105) durch seinen rotierenden Antrieb (77) in eine Winkelstellung vor seiner unteren Totpunktstellung gebracht wird, in welcher Winkelstellung die konischen Kopfabschnitte (109) der Fangstifte (108, 109) nur teilweise in die Positionierlöcher hineinragen, in welchem Zustand die Exzenterscheibe (97) des Pleuels (96) in eine Winkelstellung vor der oberen Totpunktstellung einnimmt, wobei der Winkelabstand des Stössels (105) zwischen der genannten Winkelstellung und der unteren Totpunktstellung gleich dem Winkelabstand der Exzenterscheibe (97) zwischen ihrer genannten Winkelstellung und der oberen Totpunktstellung ist, dass danach die Verstellmutter (57) nach unten bewegt wird, so dass der Bolzen (58) zur Anlage an das untere Ende des Langloches (59) kommt und die Verstellmutter (57) noch weiter nach unten bewegt wird, bis der bandförmige Rohling (7) durch das Abheben der oberen Vorschubwalze (10) aufgrund der über die Hebelvorrichtungen (93; 44, 95) und 103; 102, 104) und der Steuerstangenanordnung (68-75) und Schwinge (33) übertragenen Bewegung lose ist, und dass die erreichte Position der Verstellmutter (57) für die genannte Winkelstellung der Exzenterscheibe (97) und die entsprechende Winkelstellung des Stössels (105) in den entsprechenden Steuervorrichtungen (49, 111) gespeichert werden.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE50203282T DE50203282D1 (de) | 2002-07-08 | 2002-07-08 | Vorschubvorrichtung zum intermittierenden Zuführen eines bandförmigen Rohlings zu einer Presse und Verfahren zum Betrieb derselben |
| EP02015172A EP1380366B1 (de) | 2002-07-08 | 2002-07-08 | Vorschubvorrichtung zum intermittierenden Zuführen eines bandförmigen Rohlings zu einer Presse und Verfahren zum Betrieb derselben |
| AT02015172T ATE296694T1 (de) | 2002-07-08 | 2002-07-08 | Vorschubvorrichtung zum intermittierenden zuführen eines bandförmigen rohlings zu einer presse und verfahren zum betrieb derselben |
| ES02015172T ES2240611T3 (es) | 2002-07-08 | 2002-07-08 | Dispositivo de avance para la alimentacion intermiente de una pieza en bruto en forma de banda a una prensa y metodo para operar tal dispositivo. |
| US10/402,281 US6869002B2 (en) | 2002-07-08 | 2003-03-28 | Apparatus for a intermittent feeding of a strip shaped blank to a press and a method of operating same |
| SG200302476A SG110042A1 (en) | 2002-07-08 | 2003-04-30 | An apparatus for a intermittent feeding of a strip shaped blank to a press and a method of operating same |
| JP2003184244A JP3773505B2 (ja) | 2002-07-08 | 2003-06-27 | ストリップ形状ブランクパンチプレス機への断続的供給装置及びその操作方法 |
| US10/996,755 US7222764B2 (en) | 2002-07-08 | 2004-11-24 | Method of operating an apparatus for an intermittent feeding of a strip shaped blank to a press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP02015172A EP1380366B1 (de) | 2002-07-08 | 2002-07-08 | Vorschubvorrichtung zum intermittierenden Zuführen eines bandförmigen Rohlings zu einer Presse und Verfahren zum Betrieb derselben |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1380366A1 true EP1380366A1 (de) | 2004-01-14 |
| EP1380366B1 EP1380366B1 (de) | 2005-06-01 |
Family
ID=29724405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02015172A Expired - Lifetime EP1380366B1 (de) | 2002-07-08 | 2002-07-08 | Vorschubvorrichtung zum intermittierenden Zuführen eines bandförmigen Rohlings zu einer Presse und Verfahren zum Betrieb derselben |
Country Status (7)
| Country | Link |
|---|---|
| US (2) | US6869002B2 (de) |
| EP (1) | EP1380366B1 (de) |
| JP (1) | JP3773505B2 (de) |
| AT (1) | ATE296694T1 (de) |
| DE (1) | DE50203282D1 (de) |
| ES (1) | ES2240611T3 (de) |
| SG (1) | SG110042A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7374073B2 (en) | 2004-11-05 | 2008-05-20 | Bruderer Ag | Apparatus for feeding a band-type material to a press |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10118785B2 (en) | 2015-02-23 | 2018-11-06 | Chs Automation | Assembly and process for a press feed mechanism for providing rapid, efficient and tuned hold and release displacement of an upper feed roller relative to a lower roller and between which is communicated a sheet material for subsequent feeding into a press operation |
| KR101784443B1 (ko) | 2016-08-12 | 2017-10-11 | 삼도프레스 주식회사 | 프레스용 피더 |
| CN110153312B (zh) * | 2019-04-16 | 2025-04-18 | 东莞市容辰制罐有限公司 | 马口铁罐全自动扣底卷线机 |
| CN112692157B (zh) * | 2021-01-20 | 2022-08-09 | 金丰(宁波)精密机械科技有限公司 | 一种带有保护装置可自动进料的冲床台身 |
| CN116274568B (zh) * | 2023-03-27 | 2026-01-16 | 浙江闻道智能装备有限公司 | 一种管件冲压装置 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3638846A (en) * | 1970-08-10 | 1972-02-01 | Littell Machine Co F J | Feeding apparatus using rack and pinion mechanism having dwell periods |
| US5062561A (en) * | 1989-05-03 | 1991-11-05 | Bruderer Ag | Apparatus for controlling the feed of an intermittent web-feeding apparatus |
| US5163595A (en) * | 1989-05-03 | 1992-11-17 | Bruderer Ag | Intermittent feeding of a web-shaped workpiece |
| US5992722A (en) * | 1996-11-26 | 1999-11-30 | The Minster Machine Company | Zero force roll release for high speed press feed units |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3623647A1 (de) * | 1986-07-12 | 1988-01-14 | Schuler Gmbh L | Vorrichtung zum schrittweisen vorschieben von bandmaterial mit zwei gegenlaeufig angetriebenen vorschubwalzen |
| CH676214A5 (de) * | 1988-10-26 | 1990-12-28 | Bruderer Ag | |
| US5197645A (en) * | 1989-09-07 | 1993-03-30 | Nordlof Richard D | Roll type stock feed apparatus with pneumatically actuated roll release |
| US5720421A (en) * | 1994-02-28 | 1998-02-24 | Vamco Machine & Tool, Inc. | Elecronically controlled high speed press feed |
| EP1304181B1 (de) * | 2001-10-18 | 2008-11-05 | Bruderer Ag | Vorrichtung zum schrittweisen Vorschieben eines bandförmigen Werkstückes |
-
2002
- 2002-07-08 DE DE50203282T patent/DE50203282D1/de not_active Expired - Lifetime
- 2002-07-08 AT AT02015172T patent/ATE296694T1/de active
- 2002-07-08 EP EP02015172A patent/EP1380366B1/de not_active Expired - Lifetime
- 2002-07-08 ES ES02015172T patent/ES2240611T3/es not_active Expired - Lifetime
-
2003
- 2003-03-28 US US10/402,281 patent/US6869002B2/en not_active Expired - Lifetime
- 2003-04-30 SG SG200302476A patent/SG110042A1/en unknown
- 2003-06-27 JP JP2003184244A patent/JP3773505B2/ja not_active Expired - Fee Related
-
2004
- 2004-11-24 US US10/996,755 patent/US7222764B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3638846A (en) * | 1970-08-10 | 1972-02-01 | Littell Machine Co F J | Feeding apparatus using rack and pinion mechanism having dwell periods |
| US5062561A (en) * | 1989-05-03 | 1991-11-05 | Bruderer Ag | Apparatus for controlling the feed of an intermittent web-feeding apparatus |
| US5163595A (en) * | 1989-05-03 | 1992-11-17 | Bruderer Ag | Intermittent feeding of a web-shaped workpiece |
| US5992722A (en) * | 1996-11-26 | 1999-11-30 | The Minster Machine Company | Zero force roll release for high speed press feed units |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7374073B2 (en) | 2004-11-05 | 2008-05-20 | Bruderer Ag | Apparatus for feeding a band-type material to a press |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE296694T1 (de) | 2005-06-15 |
| US20050150925A1 (en) | 2005-07-14 |
| US6869002B2 (en) | 2005-03-22 |
| EP1380366B1 (de) | 2005-06-01 |
| US20040004102A1 (en) | 2004-01-08 |
| JP2004082215A (ja) | 2004-03-18 |
| SG110042A1 (en) | 2005-04-28 |
| US7222764B2 (en) | 2007-05-29 |
| ES2240611T3 (es) | 2005-10-16 |
| DE50203282D1 (de) | 2005-07-07 |
| JP3773505B2 (ja) | 2006-05-10 |
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