WO2000074182A1

WO2000074182A1 - Feed device for feeding electric contact elements into crimping tools of a crimping press

Info

Publication number: WO2000074182A1
Application number: PCT/DE2000/001776
Authority: WO
Inventors: Rudolf Reinertz; Peter Schütz; Uwe Keil
Original assignee: Grote & Hartmann Gmbh & Co. Kg
Priority date: 1999-05-28
Filing date: 2000-05-26
Publication date: 2000-12-07
Also published as: DE19924565A1; CZ20013969A3; DE50001179D1; DE10081497D2; EP1181749A1; CZ298895B6; AU5804600A; EP1181749B1

Abstract

The invention relates to a device for feeding contact elements into a crimping tool of a crimping press. Said device has a support element (2), on which a slide (4) is displaceably mounted in a working direction (3) and a device (45, 47, 48, 6, 7, 11, 10) for converting the lifting movement of the slide into an oscillating transport movement, comprising a delivery stroke and a return stroke of a transport finger (158). The device is characterised in that the conversion device has a step-by step motion linkage (15) with a drive member (6, 56, 57), a negative lift drive member (7) and a lock (60, 120, 121). The drive member is mechanically coupled with the slide (4) and periodically engages the negative lift drive member (7). The lock (60, 120, 121) has a locking element (6) and at least one counter-locking element (120, 121), whereby the locking element (60) engages the counter-locking element in a counter-cyclical manner, in order to engage the drive members (6, 7), thus locking the negative lift drive member (7) and said negative lift drive member is mechanically coupled with the transport finger (158).

Description

Feeding device for electrical contact elements in crimp

Tools of a crimp press

The invention relates to a device for feeding electrical contact elements into the crimping tools of a crimping press, the contact elements being supplied in the form of a strip product, in which they are lined up next to one another or one behind the other, aligned at least in-house by means of scrap webs.

In the crimping tools, a crimped contact element is separated from the strip at the same time as the crimping with a cutting knife.

A distinction is made between two types of spooled tape goods due to the manufacture and transport, namely between tape goods with contact elements arranged lengthwise or transversely in the tape. In the band with the contact elements arranged side by side (transversely), the individual contact elements are connected to one another via scrap webs of defined length and width. In the band with the longitudinally arranged contact elements, the individual contact elements are connected to one another via connecting webs between the insulation claw of the contact element arranged in the band and the contact part of the contact element arranged in the band. A longitudinally arranged contact element is separated at the same time as the crimping by means of a separating knife. The contact elements are usually fed in using a transport finger.

The transport finger is actuated by a drive device. The drive can basically be done in two different ways, either a separate drive, e.g. is provided pneumatically or hydraulically, which is controlled depending on the ram position of the crimping press or the up and down movement of the press ram is used via a mechanical coupling to drive the transport finger.

The transport finger grips e.g. behind an edge of a contact element and pushes the tape towards the crimping tool. For example, Inertia, acceleration and friction forces are taken into account.

Such a feed device with a drive for the transport device mechanically coupled to the tappet is e.g. known from US-PS-2, 494, 137. The device has a lever which is pivotably mounted on the frame of the device and which cooperates at one end with the tappet during its upward stroke and in this case moves the contact element belt step by step at the other end via a conveyor mandrel. The reset takes place via a tension spring articulated on the lever and on the frame.

From DE-AS-1 515 396 a feed device for a terminal strip is known. This feed device has a conveyor channel slotted on the underside for the connecting terminal strip. Around the channel sits a transport slide loaded in the transport stroke direction and displaceable in the longitudinal direction of the channel, which has a transport latch finger which engages through the slot opening of the channel on the underside and transports the connecting element strip in the channel. The return stroke of the transport carriage and thus the pretensioning of the compression spring is carried out via a multi-part, adjustable swivel lever gear, which is fixed by a Actual actuating wedge web is driven during its downward stroke. The terminal strip is thus transported further during the upward stroke of the plunger by means of the compression spring that is preloaded on the transport carriage during the downward stroke of the plunger. Such a spring-loaded transport is not functionally reliable due to the limited conveying force of the compression spring, for example when a temporarily higher conveying force requirement occurs, such as, for example, when the connecting strip strip is caught or tilted on the roll.

Furthermore, such a device is complicated and has many parts. The high number of sliding friction pairs and joints requires a high level of maintenance.

In a feed device according to WO-98/00892, a transport finger and thus the contact element strip are driven during the downward stroke of the ram of the crimping press. The drive takes place via a cam track web attached to the tappet, the cam track of which cooperates with one end of a first leg lever. The other end of the first lever has a partial toothing with which it meshes with an opposite toothing of a second pivot lever. The other end of the second pivot lever interacts with a third pivot lever, which acts as a rocker arm and has a carrying and adjusting device for the transport finger at its free end. The carrying / adjusting device carries the transport finger, which thus executes a pivoting movement around the pivot / bearing point of the third lever when the plunger moves downward. Here he is in contact with a contact element of the contact element strip and pushes the foremost contact element in the transport direction into the area of the crimping tools.

The return stroke is carried out by a compression spring which is supported at one end on the device frame and at the other end at one end of the second pivot lever. Such a device has the disadvantage, among other things, that between the arrival of a contact element in its crimping end position in the crimping tool and the crimping pressing process, there is little time left for correctly feeding and inserting the wire ends into the wire or insulation claws of the contact elements, since shortly after End position of the contact element is already crimped.

In addition, the device is complicated and constructed in many parts. In the case of fast stroke sequences, the transport finger can swing beyond its target end position against the spring pressure due to the inertia, which can result in inaccurate positioning of the contact element in the crimping tool. Inaccurate positioning of the contact element in the crimping tool can result in a poor crimp connection or, in unfavorable cases, damage or even destruction of the crimping top or crimping bottom tool.

In a further feed device described in EP 0 525 952 A2, the up and down movement of the press ram is converted into an oscillating rotational movement of the gear wheel by means of a toothed rack attached to the outside of the ram and a first gearwheel meshing therewith and mounted in the device carrier. The rack and the first gear are constantly engaged. The first gear drives a clutch hub of a rotary slip clutch via one or more additional spur gears. The circumference of the coupling hub has a plurality of friction bolts which are spring-loaded radially outwards and are seated in corresponding blind hole recesses. The friction clutch hub and the friction bolts surround a friction clutch bell with a cylindrical inner surface. The friction clutch bell and the friction clutch hub are rotatably seated on a common axis of rotation. The friction bolts are pressed by the compression springs with one end face against the inner surface of the friction clutch bell and thus ensure a frictional torque transmission of up to a limit torque the friction clutch hub to the friction clutch bell. Clamping the friction clutch bell on the outside, an output ring with an extension arm is seated, at the end of which the transport finger is articulated via a support block. Adjustable rotary stops are provided on the output ring, which limit the rotation of the friction clutch bell in both directions compared to a counter-stop fixed to the frame. The transport stroke of the transport finger can be preset using the rotary stops.

When a rotary stop reaches its counter-stop, the slip clutch bell is stopped abruptly and the movement of the conveyor finger is also stopped suddenly. Since the tappet continues to move and the clutch hub is still forcibly driven, the friction bolts slide along the inner surface of the friction clutch bell. The friction clutch thus acts in the manner of a slip clutch. Such a device has a complicated structure and is particularly subject to high wear in the friction clutch.

In addition, the start of conveying and the braking of the contact element strip takes place abruptly and suddenly, so that longitudinal vibrations can occur in the contact element strip, which can lead to inaccurate positioning of the contact element to be crimped in the tool. When higher conveying forces occur for the contact element strip, for example due to hooking on the roller, the slip clutch can slip unintentionally and thus a defined positioning cannot always be ensured. Furthermore, disadvantageous vibrations in the device can be generated by slip-stick effects, in particular in the area of the reversal points of the ram. These vibrations are transmitted to the contact elements, in particular during the downward stroke, until shortly before crimping and can thus cause inaccurate positioning in the crimping tool. The object of the invention is to provide a feed device for electrical contact elements in crimping tools of a crimping press, which ensures precise positioning of the contact elements in the crimping tool, is simple and low-wear, and to optimize the contact element feed, smooth start-up, acceleration and decay or deceleration of the Transport movement guaranteed.

This object is achieved with a device having the features of claim 1. Advantageous designs are specified in the subclaims.

According to the invention, the feed device has a stepping gear to achieve the object. A step transmission in the sense of the invention is a mechanical transmission with a drive member and an output member, which converts a drive movement of the drive member into a defined, periodic, in particular shock-free output movement of the output member through a defined, periodic engagement of the transmission members. Furthermore, the stepper transmission has a locking mechanism which, outside of the engagement of the transmission members, preferably blocks the output movement of the output member in a form-fitting manner. The drive gear link is mechanically coupled to the plunger. The transport finger is connected, for example, via a coupling rod in the manner of a crank mechanism to the output element of the stepping mechanism.

According to a preferred embodiment, the stepper transmission has a jerk-free transmission function, ie it is designed with a steady acceleration and deceleration curve. The stepper transmission has, for example, an oscillating rotating drive disk with an eccentric and a pivotably mounted swivel disk with a slot recess, the eccentric periodically engaging in the slot recess, preferably tangentially entering or leaving the slot recess at the beginning and at the end of the engagement phase. Furthermore is on the Drive disk a locking web fixedly arranged, which locks the swivel plate when the eccentric and the swivel plate are disengaged.

In the following the invention is explained by way of example with reference to the drawing. Show it:

1 shows a feed device according to the invention in a perspective view of the transmission side;

2 shows the feed device according to the invention according to FIG.

1 in a partially cut-away perspective view of the transmission side;

3 shows the feed device according to FIG. 1 in a perspective view of the conveying side;

4 shows a perspective detail front view of the transmission members of the stepping transmission;

5 shows a perspective detailed rear view of the transmission elements of the stepping transmission;

6 shows the sequence of movements of the stepper transmission in six to 11 steps;

12 shows a perspective view of the transmission side of the feed device according to the invention at the start of the transport finger return stroke;

13 shows a perspective view of the transmission side of the feed device according to the invention during the transport finger return stroke;

14 is a perspective view of the drive side of the feed device according to the invention on the end de of the transport finger return stroke;

15 is a perspective view of the gear side of the feed device according to the invention with the stepping gear in a locked position.

A feed device 1 according to the invention has a carrier part 2, a plunger 4 which can be displaced in a vertical double arrow direction 3 (= plunger working direction), a stepping gear 5, with a drive disk 6 and a swivel disk 7 of thickness D, and one in a horizontal double arrow direction 8 (= working direction of the transport finger) ) on a guide rail 9 slidably mounted transport carriage 10. The transport carriage 10 is coupled to the swivel plate 7 via a coupling rod 11 in the manner of a crank mechanism. The carrier part 2 sits on a horizontal base plate 12.

The carrier part 2 is formed in one piece and has a first higher column 13 and a second lower column 15 arranged downstream of the first higher column 13 in a conveying direction 14. The second column 15 sits on the base plate 12. The first column 13 is seated on a cantilever web 16 extending from the base plate 12 against the conveying direction 14 on its end 17. Between the first column 13 and the second column 15, the second column 15 extends a distance from the cantilever bar 16, a vertical support beam 18 so that a slot opening 19 delimited by the cantilever bar 16, the columns 13, 15 and a lower edge 20 of the support beam is trained. Downstream in the conveying direction 14, projecting beyond the column 15 in the direction 14, a vertical bearing plate 21 is integrally formed on the support cheek 18.

The support cheek 18 and the bearing plate 21 have a transport side 22 facing the tappet 4 and a contact element band (not shown) to be transported and an opposite transmission side 23. The bearing plate 21 is on the transport page 22 thickened compared to the support cheek 18. The support cheek 18 and the bearing plate 21 are aligned on the transmission side (FIG. 2).

On the transport side of the bearing plate 21, a groove 24 with a flat rectangular cross section is introduced, which extends longitudinally in the working direction 3 of the plunger 4 over the entire bearing plate 21 and whose transverse extent in the conveying direction 14 is approximately 3/4 of the bearing plate 21, so that on both longitudinal sides the groove 24 limiting webs 25, 26 are formed.

On the transport side 22 of the limiting webs 25, 26, a holding web 27, 28 is fastened to the bearing plate 21 parallel to the groove 24, the holding webs 27, 28 each projecting a little beyond the groove 24 in the transverse direction of the groove 24, so that a Cross-section T-shaped guide groove 24a is formed (see also Fig. 3).

A sliding plate 30 with a sliding surface 31 facing the groove bottom of the T-groove 24a and a tappet side 32 facing the groove opening of the T-groove 24a sits in the groove 24a in a form-fitting manner, axially displaceable in the working direction 3 of the tappet 4 (double arrow direction 3).

On the plunger side 32, the essentially cuboidal plunger 4 is fastened between the holding webs 27, 28. The tappet 4 has an output side 35 pointing against the conveying direction 14, a front side 36 pointing in the conveying direction 14, a side 37 facing away from the carrier part 2, an upper actuating end face 38 and a crimping tool underside 39.

The actuating side 38 carries, in a known manner, a coupling piece 40 for the coupling connection of the tappet 4 to the working stamp of a hydraulic crimping press, for example. On the underside 39 are recording devices in a known manner gen (not shown) for an upper tool half (not shown) of a crimping tool (not shown) attached.

On the output side 35 of the plunger 4 sits adjacent to the holding web 27, a rack 45 running parallel to the double arrow direction 3 and having a longitudinal extent which is preferably somewhat greater than the stroke of the plunger 4 between its top dead center OT (shown in FIG. 3) and its lower one Dead center UT (shown in Fig. 1, 2). The teeth 46 of the toothed rack 45 point counter to the conveying direction 14.

The toothed rack 45 is continuously in engagement with a toothed wheel 47, which sits on a shaft 48 with a longitudinal axis 49 in a rotational test. The longitudinal axis 49 of the shaft 48 is perpendicular to the double arrow directions 3 and 8. The shaft 48 passes through the retaining web 27 and the bearing plate 21 and is rotatably supported there in the double arrow direction 50.

At the gear end of the shaft 48, preferably connected in one piece to the shaft 48, is the circular disk-shaped drive disk 6 with the longitudinal axis 49 as the central axis. The drive disk 6 has a radius R (FIG. 6), which is preferably larger than the radius of the pitch circle of the gear 47. The drive disk 6 (FIGS. 4, 5) has a first flat side 51 facing the shaft 48 and one of the shaft 48 facing away from the second flat side 52 and sits with play in a cylindrical disc-shaped flat recess 53 corresponding to the dimensions of the drive disc 6 in the gear side 23 of the bearing plate 21 such that the second flat side 52 comes to lie approximately flush with the gear side 23 (FIGS. 1, 2) .

Eccentrically at a distance t <R (FIGS. 5, 6) in the radial outer region of the drive disk 6, an axle pin 54 with its axis 55 extends perpendicularly from the flat side 52 of the drive disk 6 as the central axis. The axle pin 54 (FIG. 5) carries a first cylindrical disk-shaped roller 56 adjacent to the flat side 52 as a roller and the first roller 56 coaxially arranged on the transmission side a similar cylindrical disk-shaped second roller 57 as a roller (FIG. 4). The rollers (56, 57) are each rotatably mounted on the pin 54 independently of one another about the axis 55 and have a radius r which is preferably approximately 1/4 of the radius R. The roller 56 has a peripheral flat 58; the roller 57 has a peripheral surface 59.

The thickness of the rollers 56, 57 is approximately half the thickness D of the swivel plate 7.

Opposite the rollers 56, 57 is a locking element of a locking mechanism formed on the flat side 52 with a locking web 60 which is approximately square in cross section and circular in its longitudinal extent with a center line 62 (FIG. 8). The locking web 60 extends over an angular range φ symmetrically to an imaginary diameter line 61 through the centers of rotation of the drive pulley 6 and the rollers 56, 57.

The center line 62 has a radius R _x <R. The locking web 60 has an inner flank 65, an outer flank 66, a first end 67 and a second end 68 and an upper side 69. The flanks 65, 66 are tapered towards the ends 67, 68, and in particular are formed so as to be rounded tangentially into the flanks 65, 66. The upper side 69 is arranged approximately at a distance D / 2 from the flat side 52.

On the gear side 23 of the bearing plate 21, the swivel plate 7 is mounted at the same vertical height as the drive plate 6 so as to be pivotable about an axis 70 parallel to the axis of rotation 49 about an axis pin 70a. The axis 70 is arranged downstream of the axis of rotation 49 at a distance L in the conveying direction 14, the distance L being a little larger than the radius R of the drive disk 6.

The axis pin 70a is at one end in a bore (not shown) in the bearing plate 21 and otherwise pivotally supported with a support bearing 71. The support bearing 71 has a support bracket 72, which the axis 70 in the conveying direction 14 is attached to the bearing plate 21. From the support bracket 72, opposite to the conveying direction 14, a support bearing bracket 73 extends parallel to the bearing plate 21 and in the end region of which a bearing bore 74 is provided for the axle pin 70a. Between the support bearing bracket 73 and the bearing plate 21, the swivel disk 7 sits on the bearing pin 21 with a bore 75 (FIG. 4) on the axle pin 70a.

The swivel disk 7 (FIGS. 4, 5) is, as described above, a disk-shaped body of thickness D and has a flat first flat side 76 facing the bearing plate 21 and a second flat side 77 facing away from the bearing plate 21. The swivel disk 7 extends from the bore 75, approximately symmetrically, to a plane 78, which is perpendicular to the transmission side 23, in the direction of the drive disk 6, the first flat side 76 of the swivel disk 7, the second flat side 52 of the drive disk 6 at least in some areas covered. The swivel disk 7 has a first beak web 80 and a second beak web 81 adjacent to it on both sides of the plane 78. The beak webs 80, 81 have beak web ends 82, 83 which are in a swivel position of the swivel disk 7, in which the axis 49 in the plane 78 lies approximately in the area of the horizontal center of the drive pulley 6 (see approximately Fig. 9).

A U-shaped slot recess 84 runs parallel to the plane 78 from the beak ends 82, 83 to a distance in front of the bore 75. The slot recess 84 has a first pair of running edges 85 on the bearing plate side and a second pair of running edges 86 adjacent to it, each of which has opposing, parallel running edges 85a, 85b and 86a, 86b. The distance between the running edge pairs 85a, 85b and 86a, 86b is in each case the same size and an amount X larger than the diameter knife of the rollers 56, 57. The running edges 85a, 85b; 86a, 86b each have a width of approximately half the thickness (D / 2) of the swivel disk 7 and are arranged a distance from one another in a direction transverse to the plane 78, in particular offset by the amount X, so that in each case between the running edges 85a, 86a; 85b, 86b a step 88 is formed on each side of the recess 84.

In particular, the step 88 or the distance between the running edges 85a, 86a; 85b, 86b are set up so that the running edge 85a to the running edge 86b and the running edge 85b to the running edge 86a have a parallel distance which corresponds to the diameter of the rollers 56, 57, so that the pair of rollers 56, 57 can be inserted into the slot recess 84 without play.

The running edges 85a, 85b; 86a, 86b have guide surfaces 85c, 86c widening the slot recess 84 toward the respective beak web ends 82 and 83, respectively. The guiding surfaces 85c, 86c are curved to ensure a smooth entry or exit of the rollers 56, 57 and run tangentially into the respective associated running edges 85a, 85b; 86a, 86b.

Such a configuration of the slot recess 84 enables the actuation of the swivel disk 7 by the coaxially arranged rollers 56, 57 of the same size in diameter of the drive disk 6 - as described in detail below - to be designed to be wear-free and free of play, since the rollers 56 and 57 roll in a defined manner on one running edge 85b or 86a and have a defined distance from the respective other edge 85a or 86b. The backlash of the actuation is ensured since the running edges 85b and 86a - as described above - are at a distance from one another which corresponds to the diameter of the rollers 56, 57.

The slot recess 84 is delimited by a floor boundary surface 89. It is arranged so that in one position Drive disk 6 and the swivel disk 7 to each other, in which the axis of rotation 55 of the rollers 56, 57 lies between the axes of rotation 49 and 70 in their plane (approximately a position according to FIG. 9), the circumferential surfaces 58, 59 are spaced a distance from the floor boundary surface 89 are.

Starting from the plane of symmetry 78, starting on both sides, starting in an area between the bottom boundary surface 89 of the slot recess 84 and the bore 75, are inclined at an obtuse angle to the slot recess 84, a vertically upper and a vertically lower elongated hole recess 90 and 91, respectively. The slot recesses 90 and 91 penetrate the swivel plate 7 and are expanded from approximately the center of the swivel plate 7 to the bearing-side flat side 76, so that a circumferential stop step 92 is formed approximately in the region of the center plane of the swivel plate 7. The second flat side 77 has an ablation 93 of shallow depth in the region of the elongated hole recesses 90, 91, so that a support plane 95 and guide edges 94 are formed. The guide edges 94 each run in a straight line, spaced apart and parallel to the slot recesses 90, 91 on the side thereof facing slot slot 84.

In the extended area of the elongated hole recess 90, 91 a sliding block 96, 97 is seated in a form-fitting manner in the longitudinal direction thereof, which is flush on one side with the first flat side 76 and rests on the stop step 92 on the other side. The sliding blocks 96, 97 each have threaded bores 98 in their longitudinal end regions, the central axes of which are perpendicular to the center plane of the swivel plate 7.

On the support level 95 and adjacent to the guide edges 94, there are seat plates 99, 100 communicating with the sliding blocks 96, 97, which also have through-holes 101 in the end regions which communicate with the threaded holes 98 of the sliding blocks 96, 97. Through the bores 98, 101, which are closer to the plane 78, 77 is from the second flat side a fixing screw 102 for fixing the holding plate 99, 100 with respect to the sliding blocks 96, 97 screwed in. The respective outer bores 98, 101 optionally serve to fasten a first joint eye 110 of the coupling rod 11 (FIG. 1).

By moving the sliding blocks 96, 97 with the holding plates 99, 100 and the hinged hinge eye 110 of the coupling rod 11, the length of the articulation lever for the coupling rod 11 can be adjusted with respect to the axis 70. This setting can be fixed by tightening the screws 102 and a fastening screw 103 for the joint eye 110.

Starting from the support plane 95, the swivel disk 7 has a further removal 111 in the region of the bore 75, so that a surface 112 and two straight edges 113 arranged at an obtuse angle to one another are formed.

In the first flat side 76 of the swivel disk 7, the elongated hole recesses 90, 91 in the direction of the beak ends 82, 83 are arranged in the beak webs 80, 81, circular arc-shaped locking grooves 120, 121 are provided (FIGS. 4 to 8), which act as counter locking elements for serve the barrier bar 60. The locking grooves 120, 121 have at least partial areas the same cross-section and the same radius as the locking web 60 of the drive pulley 6, so that the locking web 60 fits positively into each of the locking grooves 120, 121. The locking grooves 120, 121 lead from a peripheral edge 123 of the swivel disk 7 in the form of a circular arc in the direction of the slot recess 84, the locking groove 120 opening into the slot recess 84 and the locking groove 121 ending approximately at half the arc length between the peripheral edge 123 and the slot recess 84. The position of the locking grooves 120, 121 is chosen constructively such that in a first end position (cf. FIG. 6) of the swivel disk 7, the locking web 60 of the drive disk 6 can be inserted into the locking groove 121 by rotating the same and the locking web 60 in one second end position (see FIG. 5) of the swivel plate 7 by rotating the drive plate 6 with the End 67 is retractable into the locking groove 120. The barrier bar 60 and; the locking grooves 120, 121 thus form a locking mechanism, which locks the pivotability of the swivel disk 7 anticyclically to the engagement of the rollers 56, 57.

The locking grooves 120, 121 each have side arc surfaces 124, 125 and a base area 126. The side arc surfaces 124, 125 are each chamfered in the mouth region of the locking grooves 120, 121 towards the peripheral edge 123 of the swivel plate 7, in particular are expanded tangentially in an arc shape.

Within the tangential arc-shaped extension, the side arc surfaces 124, 125 of the grooves 120, 121 have a certain distance, e.g. about 4 mm, a distance from each other, which corresponds to the distance between the flanks 65, 66, so that locking surfaces 124a, 125a are formed, which ensure a positive guidance of the locking web 60. Within the blocking surfaces 124a, 125a, the side arc surfaces 124, 125 are at a greater distance from one another, so that the blocking web 60 can be inserted with play in this area. Such a design of the locking grooves 120, 121 ensures that the locking web 60 moves into the locking grooves 120, 121 without interlocking (see FIG. 7).

The guide rail 9 extends on the transmission side 23 of the support cheek 18 in the direction of the double arrow direction 8 between the first column 13 and the second column 15 a little above the lower edge 20. It is e.g. fastened to the support cheek 18 with screws 130 and has channel-shaped guide grooves 132 on its longitudinal edges 131.

On the guide rail 9 is axially displaceable in the double arrow direction 8, encompassing the guide rail 9, a slide sliding part 133, which is designed as a recirculating ball guide with a sealing lip 134. A slide bracket 136 is fastened on an outer surface 135 of the slide sliding part 133 facing away from the guide rail 9. The carriage bracket 136 has a coupling plate 137 vertically upward, projecting above the carriage sliding part 133, reaching exactly to the height of the axis 49, which has a bore 138 in its end region (FIG. 2). The bore 138 is perpendicular to the transmission side 23 with its central axis and is used to fasten a second joint eye 139 of the coupling rod 11 by means of a screw 140 and a nut 141.

To make the screw connection 140, 141 easier to access, the support cheek 18 has an opening 142 in the area of the screw connection 140, 141.

Below the slide sliding part 133, the slide bracket 136 extends through the slot recess 19 in a self-supporting manner and has a vertical flange plate 143 with a mounting surface 144 on the transport side 22 of the carrying beam 18. The mounting surface 144 has a plurality of parallel, vertically running grooves 145 and a horizontally extending elongated hole 146. On the corrugated mounting surface 144 there is a transport finger base carrier 147 which is displaceable in the double arrow direction 8 with respect to the flange plate 143 and can be fastened with screws 148. The transport finger base carrier 147 holds an adjusting device 150 of the transport finger base carrier 157. The transport finger carrier 152 has a bearing bolt 154 which points horizontally away from the support cheek 18 and a support bar 155 which extends at a distance below the bolt 154. A transport finger holder 156 is pivotally mounted on the bolt 154 in a spring-loaded manner. The transport finger holder 156 protrudes a little in the transport direction 14, so that its pivoting downward is limited by the support strip 155. The transport finger holder 156 carries a vertical plate-shaped transport finger 158 on a side surface 157a. The transport finger 158 has an upper edge 159, a ramp edge 160 rising from the front end of the upper edge 159 in the conveying direction 14 and a vertical front end edge 161, so that a sharp-pointed engagement corner 162 is formed, which on edges of the contact elements or in predetermined recesses in the contact element band, for example can intervene in the scrap yard.

When the transport carriage 10 moves in the conveying direction 14, the engagement corner 162 hooks on suitable edges or in suitable recesses of the contact element band (not shown) from below and transports it in a form-fitting manner. When moving back against the conveying direction 14, the transport finger slides along with the ramp edge 160 on the contact elements in a resilient ratcheting manner.

The coupling rod 11 extends between the articulated eyes 110 and 139. The coupling rod 11 is cantilevered, rigid and in each case pivotable about the central axes of the screws 103, 140 on the swivel plate 7 and on the coupling plate 137. The coupling rod 11 is part of a crank mechanism, consisting of the swivel plate 7, the coupling rod 11 and the slide 10 which can be moved linearly in the double arrow direction 8 and serves to convert the oscillating swivel movement of the swivel plate 7 into an oscillating linear movement in the double arrow direction 8 of the slide 10.

The mode of operation of the feed device 1 is explained in more detail below:

An arrangement of the individual components of the feed device 1 according to FIGS. 3, 6, 12 is defined as the starting position I. Accordingly, in position I, the tappet 4 is at its top dead center (TDC) (FIGS. 12, 3); the rack 45 is at its vertically lower end with the gear 47 in engagement (Fig. 3). In this position I, the rollers 56, 57 are located outside the slot recess 84, for example vertically above the rotary axis 49 of the drive pulley 6 (FIG. 6). The locking web 60 rests with its end 68 in the locking groove 121 and, via its flanks 65, 66, which bear against the locking surfaces 124a, 125a of the locking groove 121, locks or locks the swivel disk 7 about its swivel axis 70. In this position I forms the central plane 78 between the running edges 85b, 86a of the swivel disk 7 a tangential plane E to an imaginary cylindrical surface Z with the axis 49 as the central axis and the radius t (FIG. 6). The tangential plane E touches the imaginary cylinder surface Z in an imaginary contact line B. Furthermore, according to FIG. 12, the coupling rod 11 is fastened with its first joint eye 110, for example, to the holding plate 99 or the corresponding sliding block 96 lying vertically above the axis 70. Thus, the carriage 10 is located adjacent to the second column 15 at the front end of the guide rail 9 in the conveying direction 14 (FIG. 12). The transport finger 158 is in a forwardmost end position in the conveying direction 14 (FIG. 3). The foremost contact element of the contact element band is correctly positioned in this position in the crimping tool and fixed in this position by a transport brake (not shown) which may be present.

If the tappet 4 is actuated in its working stroke direction 3a starting from the top dead center (FIG. 12), the drive disk 6 is set in a rotational movement of the arrow direction 50a. The rollers 56, 57 are moved in the direction of the mouth of the slot recess 84, the locking web 60 is pulled out of the locking groove 121 at the same time. The swivel plate 7 and thus also the carriage 10 remain in their initial position.

In a position II, the central axis 55 coincides with the imaginary contact line B. In this position, the rollers 56, 57 have threaded into the slot recess 84 tangentially into the slot recess 84 via the guide surfaces 85c, 86c, so that the roller 57 contacts the running edge 86a and the roller 56 contacts the running edge 85b. The swivel plate 7 is thus free of play with the drive Disc 6 in engagement. At the same time, the locking web 60 comes out of the locking groove 121 and releases the swivel disk 7 so that it can pivot.

By moving the plunger 4 further in the direction of the arrow 3a, the swivel disk 7 is accelerated by the roller 56 gently, in particular without jerking, into a swivel movement in the direction of an arrow 170a (FIG. 8) about the axis 70 (position III). Likewise, the first joint eye 110 of the coupling rod 11 describes such a jerk-free accelerated pivoting movement and transmits it linearly via the coupling rod 11 to the carriage 10, which accelerates without jerking from its rest position, linearly in a return stroke direction 8a of the transport finger 158 (FIG. 13) counter to the conveying direction 14 towards the column 13, sets in motion. The transport finger 158 thus begins its return stroke.

In a position IV (Fig. 9, 13), the axes 70, 55, 49 are in one plane. The rollers 56, 57 reach a reversal point in the slot recess 84. The carriage 10 and thus the transport finger 158 reach a middle position between their front and rear reversal point. The instantaneous speed of the swivel movement of the swivel disk 7 with respect to the drive disk 6 reaches a maximum.

A further movement of the tappet 4 in its working direction 3a causes the drive disk 6 to continue rotating in the direction of the arrow 50a up to a position V (FIG. 10). During this movement, the pivoting movement in the direction of arrow 170a of the pivoting disk 7 is decelerated smoothly, in particular without jerking; the instantaneous speed of the swiveling movement reaches the value zero in position V.

In position V, the central plane 78 again represents a tangential plane E 'to the imaginary cylinder surface Z described by the axis 55, the imaginary contact line B' of which coincides with the axis 55 again. In this position V the Barrier web 60 reached with its first end 67 the mouth of the locking groove 120, which was pivoted into the raceway of the barrier web 60 by the pivoting movement. The rollers 56, 57 are in turn located in the mouth region of the slot recess 84, wherein they touch the running edges 85b and 86a in the transition region between the running edges 85b, 86a and the guide surfaces 85c, 86c.

Analogous to the swivel disk 7, which is in its second limit position, the carriage 10 also brakes smoothly to zero speed, its rear end position at a distance F from the column 13 (FIG. 14).

Starting from position V, the rollers 56, 57 leave the slot recess 84 tangentially and thus smoothly when the plunger 4 moves further in its working direction 3a, so that the plunger 4 engages with the plunger 4 until bottom dead center (UT) (FIG. 15) 56, 57 is canceled in the swivel plate 7. At the same time, the locking web 60 penetrates the pivotability of the swivel plate 7 into the locking groove 120 in a form-locking manner. The carriage 10 thus remains at a distance F from the column 13 (FIG. 15) (position VI) despite a further rotation of the drive disk. The position of the drive disk 6 and the swivel disk 7 at the bottom dead center of the tappet 4 is shown in FIG. 11.

During the entire engagement phase of the rollers 56, 57 in the slot recess 84, the roller 56 rolls on the running edge 85b in a force-transmitting manner during the downward stroke of the tappet 4. A play gap remains between the roller 56 and the opposite edge 85a, so that the free rotation of the roller 56 about the axis 55 is not hindered.

In the above-described downward stroke of the plunger 4, the roller 57 rolls on the running edge 86a load-free or almost load-free in the opposite direction to the roller 56 during the engagement phase. During the backward or upward stroke of the tappet 4, starting from bottom dead center (UT) to top dead center (OT), the above-described processes are reversed in direction.

The conveyor finger 158 hooks into an edge of a contact element or a transport opening in the contact element belt and is gently, in particular smoothly, accelerated by the step mechanism 5, as described above, and gently, in particular smoothly, until it reaches its foremost end position in the conveying direction 14. slowed down.

By moving the sliding block 96 in the slot 90, the total stroke of the slide 10 can be predetermined and fixed by clamping. The set end position of the transport finger 158 can be roughly adjusted by moving the transport finger base carrier 147 with respect to the flange plate 143 and finely by means of the adjusting device 150.

If the promotion of the contact elements takes place during the downward stroke of the plunger 4, the coupling rod 11 can be attached to the second sliding block 97.

According to a further embodiment of the feed device 1 according to the invention, the locking mechanism is arranged separately from the step mechanism 5, the locking element of the locking mechanism e.g. is designed as a pair of locking fingers with two vertical locking fingers, each of which is firmly attached to the plunger 4 above and below the swivel disk 7 and e.g. the bearing plate 21 encompassing or engaging in corresponding counter-blocking elements, e.g. Engage locking holes or locking slots of the swash plate 7 when it is in one of its limit positions.

A feed device according to the invention thus enables precise positioning of the contact elements in the crimping tool. The step-transmitting force-transmitting in both directions gear, which is also designed to be jerk-free, that is to say having a constant course of acceleration, reliably ensures smooth starting and braking or decaying of the transport movement of the contact elements. Unwanted vibrations in the contact element band, which could result in an imprecise positioning of the contact element in the crimping tool, are thus reliably avoided. The locking mechanism, which locks the transport finger in its end positions outside of its conveying or return stroke movement, also contributes in particular to this.

Claims

claims

1. Device for feeding contact elements into a crimping tool of a crimping press, comprising a carrier part (2) in which a plunger (4) is slidably mounted in a working direction (3) and a device (45, 47, 48, 6, 7 , 11, 10) for converting the stroke movement of the plunger (4) into an oscillating transport movement with a conveying stroke and a return stroke of a transport finger (158), characterized in that the conversion device (45, 47, 48, 6, 7, 11, 10) has a stepping gear (5) with a drive gear member (6, 56, 57), an output gear member (7) and a locking mechanism (60, 120, 121), the drive gear member (6, 56, 57) being mechanically connected to the tappet (4) is coupled and is periodically engaged with the driven gear member (7), the locking mechanism (60, 120, 121) has a locking element (60) and at least one counter locking element (120, 121), the locking element (60) having the counter locking element (120 , 121) countercyclical h for engagement of the gear members (6, 7), the output gear member (7) is in locking engagement and the output gear member (7) is mechanically coupled to the transport finger (158).

2. Device according to claim 1, characterized in that the stepping gear (5) is designed to work smoothly.

3. Apparatus according to claim 1 and / or 2, so that the drive member (6) is coupled to the tappet (4) via a rack and pinion gear (45, 47).

4. Device according to one of claims 1 to 3, so that the conveyor finger (158) is part of a linearly displaceable transport carriage (10), which is coupled to the output element (7) via a coupling rod (11) in the manner of a crank mechanism.

5. Device according to one of claims 1 to 4, characterized in that the stepping gear (5) has a rotatably mounted drive plate (6) with an eccentric (56, 57) and a parallel to the drive plate (6) pivotally mounted swivel plate (7) with a Has slot recess (84), wherein the eccentric (56, 57) periodically engages with the slot recess (84).

6. Device according to one of claims 1 to 5, characterized in that the locking mechanism (60, 120, 121) comprises a locking web (60) on the drive disk (6) and locking grooves (120, 121) in the swivel disk (7), which are engaged when the eccentric (56, 57) is outside the slot recess (84).

7. The device according to claim 4, so that the stroke of the linearly displaceable transport carriage (10) is adjustable.

Device according to one of claims 1 to 7, characterized in that the transport finger (158) can be actuated in a conveying direction (14) of the contact elements during the working stroke of the plunger (4).

9. Device according to one of claims 1 to 7, so that the transport finger (158) can be actuated in the conveying direction (14) during the return stroke of the plunger (4).

10. The device according to one of claims 1 to 5, d a d u r c h g e k e n n e e c h n e t that the locking mechanism is arranged separately from the stepping gear (5) and e.g. has at least one plunger-proof locking pin and corresponding locking bores or locking slots in the swivel disk (7), which are engaged when the eccentric (56, 57) is located outside the slot recess (84).

11. The device according to any one of claims 5 to 10, characterized in that the eccentric (56, 57) consists of a first eccentrically positioned roller (56) as a roller and a second eccentrically positioned roller (57) as a roller, which by one Rotation axis (49) of the drive member (6) parallel eccentric rotation axis (55) are rotatably mounted independently of each other.

12. The device according to one of claims 1 to 11, characterized in that the carrier part (2) is formed in one piece and a first higher column (13) and in the conveying direction (14) of the first higher column (13) downstream second lower column ( 15), the carrier part (2) with the second column (15) being seated on a base plate (12).

13. The apparatus of claim 12, so that the first column (13) is seated on an end web (16) extending from the base plate (12) against the conveying direction (14) on the end (17) thereof.

14. The apparatus of claim 12 and / or 13, characterized in that between the first column (13) and the second column (15), the second column (15) projecting a distance from the cantilever web (16) a vertical support beam (18) extends so that a slot opening (19) bounded by the cantilever web (16), the columns (13, 15) and a lower edge (20) of the support cheek (18) is formed.

15. The apparatus of claim 14, d a d u r c h g e k e n n z e i c h n e t that downstream in the conveying direction (14), over the column (15) in the direction (14) projecting to the support cheek (18) a vertical bearing plate (21) is integrally formed.

16. The apparatus according to claim 15, characterized in that the support cheek (18) and the bearing plate (21) have a tappet (4) and the contact element band to be transported transport side (22) and an opposite gear side (23), the bearing plate ( 21) on the transport side (22) is thickened with respect to the support cheek (18) and the support cheek (18) and the bearing plate (21) are aligned on the transmission side.

17. The apparatus according to claim 16, characterized in that on the transport side of the bearing plate (21) has a cross-sectionally rectangular groove recess (24) is introduced, which is longitudinal in the working direction (3) of the interference ßels (4) over the entire bearing plate (21) and their transverse extent in the conveying direction (14) is about 3/4 of the bearing plate (21), so that on both longitudinal sides of the groove (24) limiting webs (25, 26) are formed.

18. The apparatus according to claim 17, characterized in that on the transport side (22) of the limiting webs (25, 26) in each case parallel to the groove (24) a retaining web (27, 28) is attached to the bearing plate (21), the retaining webs ( 27, 28) each protrude a little over the groove (24) in the transverse direction of the groove (24), so that a guide groove (24a) with a T-shaped cross section is formed.

19. The apparatus of claim 18, d a d u r c h g e k e n n z e i c h n e t that in the groove (24 a) positively, axially in the working direction

(3) of the tappet (4) slidably a sliding plate (30) with a sliding surface facing the groove bottom of the T-groove (24a)

(31) and a tappet side (32) facing the slot opening of the T-slot (24a).

20. The apparatus according to claim 19, characterized in that on the plunger side (32) between the holding webs (27, 28) of the plunger (4) is fixed, which has a counter to the conveying direction (14) output side (35), one in the conveying direction ( 14) facing front (36), one of the carrier part (2), pioneering side (37), an upper actuating face (38) and a crimping tool underside (39).

21. The apparatus according to claim 20, characterized in that the actuating side (38) has a coupling piece (40) for coupling the plunger (4) to the working stamp a hydraulic crimping press, for example, and receiving devices for an upper tool half of a crimping tool are attached to the underside (39).

22. The apparatus according to claim 20 and / or 21, characterized in that on the output side (35) of the plunger (4) adjacent to the retaining web (27) sits parallel to the double arrow direction (3) extending rack (45) which has a longitudinal extension, which is preferably somewhat larger than the stroke of the tappet (4) between its top dead center (OT) and its bottom dead center (UT) and their teeth (46) point counter to the conveying direction (14).

23. The device according to claim 22, characterized in that the rack (45) with a gear (47), the rack / gear train (45, 47) forming, is in engagement, the gear (47) rotatably on a shaft ( 48) sits and the shaft (48) has the axis of rotation (49) as the central axis.

24. The device according to claim (23), characterized in that the axis of rotation (49) of the shaft (48) is perpendicular to the working direction of the plunger and perpendicular to a working direction (8) of the conveyor finger (158), the shaft (48) passes through the retaining web (27) and the bearing plate (21) and is rotatably supported there in a double arrow direction (50).

25. The apparatus of claim 23 and / or 24, characterized in that at the transmission end of the shaft (48), preferably integrally connected to the shaft (48), the circular disc-shaped drive disc (6), which the axis of rotation (49) as Center axis, sits.

26. Device according to one of claims 23 to 25, characterized in that the drive disc (6) has a radius (R) which is preferably greater than the radius of the pitch circle of the gear (47), the drive disc (6) one of the shaft (48) facing first flat side (51) and a second flat side (52) facing away from the shaft (48) and with play in a cylindrical disc-shaped flat recess corresponding to the dimensions of the drive disc (6)

(53) sits in the gear side (23) of the bearing plate (21) in such a way that the second flat side (52) comes to lie approximately flush with the gear side (23).

27. The device according to any one of claims 11 to 26, d a d u r c h g e k e n n e e c h n e t that eccentrically at a distance (t <R) in the radial outer region of the drive disc (6) has an axle pin (54) with the axis (55) as the central axis perpendicular from the flat side

(52) of the drive pulley (6) goes off, the axle pin

(54) adjacent to the flat side (52), the first cylindrical disk-shaped roller (56) and the first roller (56) on the transmission side coaxially upstream of the same cylindrical disk-shaped second roller (57).

28. Device according to one of claims 11 to 27, characterized in that the roller (56) has a peripheral surface (58) and the roller (57) has a peripheral surface (59), the rollers (56, 57) having a radius (r) have, which is preferably about 1/4 of the radius (R).

29. Device according to one of claims 11 to 28, characterized in that the swivel plate (7) has a thickness (D) and the Rollers (56, 57) have a thickness which is approximately half the thickness (D).

30. Device according to one of claims 6 to 29, characterized in that the locking web (60) is approximately square in cross-section and approximately circular in its longitudinal extent and the rollers (56, 57) are formed opposite to the flat side (52), wherein the locking web (60) extends over an angular range φ symmetrically to an imaginary diameter line (61) through the centers of rotation of the drive pulley (6) and the rollers (56, 57).

31. The device according to one of claims 6 to 30, characterized in that the locking web (60) has a circular arc-shaped center line (62) with a radius (R _x <r) and an inner flank (65), an outer flank (66), a first End (67) and a second end (68) and an upper side (69).

32. Apparatus according to claim 31, so that the flanks (65, 66) taper towards the ends (67, 68), in particular are formed rounded rounded in a tangential manner into the flanks (65, 66).

33. Device according to one of claims 16 to 32, characterized in that the swivel plate (7) on the transmission side (23) of the bearing plate (21) at the same vertical height as the drive plate (6) about an axis parallel to the axis of rotation (49) ( 70) is pivotably mounted on an axle pin (70a), the axis (70) being arranged at a distance (L) from the axis of rotation (49) in the conveying direction (14) and the distance (L) being a little larger than the radius ( R) of the drive pulley (6).

34. The apparatus of claim 33, so that the axle pin (70a) is held at one end in a bore in the bearing plate (21) and at the other end with a support bearing (71).

35. Apparatus according to claim 34, characterized in that the support bearing (71) has a support bracket (72) which is attached with respect to the axis (70) downstream of the bearing plate (21) and from the support bracket (72) against the conveying direction (14), spaced parallel to the bearing plate (21), extends a support bearing bracket (73), in the end region of which a bearing bore (74) is provided for the axle pin (70a).

36. Device according to one of claims 33 to 35, d a d u r c h g e k e n n z e i c h n e t that the swivel plate (7) with a bore (75) on the axle pin (70 a) is pivotally mounted.

37. Device according to one of claims 5 to 36, characterized in that the swivel disc (7) has a flat, the bearing plate (21) facing the first flat side (76) and one of the bearing plate (21) facing away from the second flat side (77) and From the bore (75) approximately symmetrically to a plane (78), which is perpendicular to the transmission side (23), extends in the direction of the drive disk (6) in a beak-like manner, the first flat side (76) of the swivel disk the second flat side (52) of the drive disk (6) at least partially covered.

38. Apparatus according to claim 37, characterized in that the swivel disc (7) on both sides of the plane (78) to this has a first beak web (80) and a second beak web (81), the beak webs (80, 81) having beak web ends (82, 83) which are in a pivoted position of the swivel plate (7) in which the axes (49) in the plane (78) lies approximately in the area of the horizontal center of the drive pulley (6).

39. Device according to claim 37 and / or 38, so that the slot recess (84) is U-shaped and runs parallel to the plane (78) from the beak ends (82, 83) until a bit in front of the bore (75).

40. Device according to one of claims 5 to 39, characterized in that the slot recess (84) on the bearing plate side has a first pair of running edges (85) and adjoining this a second pair of running edges (86), the pairs of running edges (85, 86) each lying opposite one another, have parallel running edges (85a, 85b; 86a, 86b).

41. Apparatus according to claim 40, characterized in that the distance between the pairs of running edges (85a, 85b; or 86a, 86b) is in each case the same size and the amount of one piece (X) larger than the diameter of the rollers (56, 57) , the running edges (85a, 85b or 86a, 86b) each having a width of approximately half the thickness of the swivel plate (7).

42. Device according to one of claims 40 and / or 41, characterized in that the leading edge pairs (85, 86) are arranged in a direction transverse to the plane (78) a piece, in particular offset by the amount (X), so that in each case between the running edges (85a, 86a; 85b, 86b) on one side of the extension Take (84) a step (88) is formed.

43. Device according to one of claims 40 to 42, characterized in that the distance between the running edge (85a) and the running edge (86b) and between the running edge (85b) and the running edge (86a) in each case the diameter of the rollers (56, 57 ) corresponds so that the pair of rollers (56, 57) can be inserted without play into the slot recess (84).

44. Device according to one of claims 40 to 43, characterized in that the running edges (85a, 85b; 86a, 86b) to the respective beak web end (82) or (83) have the slot recess (84) widening guide surfaces (85c, 86c) , wherein the guide surfaces (85c, 86c) are arched and in particular tangentially enter the associated running edges (85a, 85b; 86a, 86b).

45. Device according to one of claims 5 to 44, characterized in that the slot recess (84) is limited in its depth by a bottom boundary surface (89), the bottom boundary surface (89) being arranged such that in a position of the drive pulley (6) and the swivel plate (7) to one another, in which the axis of rotation (55) of the rollers (56, 57) lies in their plane between the axes of rotation (49 and 70), the circumferential surfaces (58, 59) are a part of the floor boundary surface (89) are spaced apart.

46. Device according to one of claims 39 to 55, characterized in that the swivel disc (7) has elongated hole recesses (90, 91) which, starting from the plane of symmetry (78) on both sides, beginning in a region between the bottom boundary surface (89) of the slot recess (84) and the bore (75) begin and go off at an obtuse angle to the slot recess (84).

47. Device according to claim 46, so that the elongated hole recesses (90, 91) are designed to be extended towards the bearing-side flat side (76), so that a circumferential stop step (92) is formed approximately in the region of the center plane of the swivel plate (7).

48. Device according to claim 46 and / or 47, so that the second flat side (77) has a removal (93) of shallow depth in the area of the elongated hole recesses (90, 91), so that a support plane (95) and guide edges

(94) are formed, the guide edges (94) each being spaced apart in a straight line and parallel to the slot recesses (90, 91) on the slot recess

(84) facing side.

49. Device according to one of claims 46 to 48, characterized in that in the elongated hole recesses (90, 91) in their expanded area positively displaceable in the longitudinal direction, each a sliding block (96, 97) sits, which ends with the first flat side (76) and rest on the stop step (92).

50. Apparatus according to claim 49, characterized in that the sliding blocks (96, 97) each have threaded bores (98) in their longitudinal end regions, the central axes of which are perpendicular to the central plane of the swivel plate (7).

51. Apparatus according to claim 49 and / or 50, characterized in that communicating with the sliding blocks (96, 97) on the support plane (95) holding plates (99, 100) are arranged, which abut the guide edges and through holes (101 ) which communicate with the threaded bores (98) of the sliding blocks (96, 97).

52. Apparatus according to claim 51, characterized in that through each of the plane (78) respectively closer bores (98, 101) is from the second flat side (77) a fixing screw (102) for fixing the holding plate (99, 100) with respect the sliding blocks (96, 97) are screwed in.

53. Device according to one of claims 49 to 52, so that a first joint eye (110) of the coupling rod (11) can be fastened to the respective outer bores (98, 101).

54. Apparatus according to claim 53, characterized in that the length of the articulation lever for the coupling rod (11) by moving the sliding blocks (96, 97) with the holding plate (99, 100) together with the attached hinge eye (110) of the coupling rod with respect to the axis (70) is adjustable and definable.

55. Device according to one of claims 6 to 54, characterized in that the locking grooves (120, 121) are designed in a circular arc and at least partially have the same cross-section and the same radius as the locking web (60) of the drive pulley (6), so that the Locking bar (60) fits positively in each of the locking grooves (120, 121).

56. Device according to one of claims 6 to 55, characterized in that the locking grooves (120, 121) in the first flat side (76) of the swivel plate (7) in the area of the beak webs (80, 81) in the slot openings (90, 91) in Direction of the beak ends (82, 83) are arranged upstream.

57. Device according to one of claims 6 to 56, characterized in that the locking grooves (120, 121) from a peripheral edge (123) of the swivel plate (7) extend in a circular arc in the direction of the slot recess (84), the locking grooves (120, 121) optionally opening into the slot recess (84).

58. Device according to one of claims 6 to 57, characterized in that the locking grooves (120, 121) are arranged such that in a first end position of the swivel plate (7) of the locking web (60) of the drive plate (6) by rotation thereof in the Locking groove (121) can be inserted and in a second end position of the swivel disk (7) the locking web (60) can be inserted into the locking groove (120) by rotating the drive disk (6) with the end (67) first.

59. Device according to one of claims 6 to 58, so that the locking grooves (120, 121) are counter-locking elements for the locking web (60), with which the locking mechanism is formed.

60. Device according to one of claims 6 to 59, characterized in that the locking grooves (120, 121) each have a first side arc flat (124), a second side arc surface (125) and each have a base area (126), the side arc surfaces ( 124, 125) each in the mouth area of the locking grooves (120, 121) chamfered towards the peripheral edge (123) of the swivel plate (7), in particular expanded tangentially in an arc shape.

61. The apparatus of claim 60, so that the side arc surfaces (124, 125) of the locking grooves (120, 121) within the tangential arc-shaped extension at least over a certain distance, e.g. about 4 mm from each other, which corresponds to the distance between the flanks (65, 66) of the locking web (60), so that locking surfaces (124a, 125a) are formed, which ensure a positive guidance of the locking web (60).

62. Apparatus according to claim 61, so that the side arch surfaces (124, 125) within the locking surfaces (124a, 125a) are at a greater distance from one another, so that the locking web can be inserted into this area with play.

63. Device according to one of claims 16 to 62, d a d u r c h g e k e n n z e i c h n e t that on the transmission side (23) of the support cheek (18) in the direction of the double arrow direction (8) between the first column

(13) and the second column (15) a piece above the lower edge (20) extends a guide rail (9) horizontally, which e.g. with screws (130) on the carrying beam

(18) and has groove-shaped guide grooves (132) on their longitudinal edges (131).

64. Device according to claim 63, characterized in that on the guide rail (9) axially displaceable in the double arrow direction (8) sits the slide (10) which has a slide sliding part (133) with longitudinal sliding webs (134). points, which sit positively in the guide grooves (132).

65. Apparatus according to claim 64, characterized in that on an outer surface (135) facing away from the guide rail (9) of the slide sliding part (133) a slide bracket (136) is attached, which projects vertically upwards over the slide sliding part (133) until slightly above reaching the height of the axis (49), has a coupling plate (137) which has a bore (138) in its upper end region.

66. Device according to claim 65, characterized in that the bores (138) with their central axis are perpendicular to the transmission side (23) and for fastening a second hinge eye (139) of the coupling rod (11) by means of a screw (40) and a nut ( 141) serves.

67. Device according to claim 66, so that the supporting cheek (18) has an opening (142) in the area of the screw connection (140, 141) in order to ensure easier access (140, 141).

68. Device according to one of claims 65 to 67, characterized in that the slide bracket (136) below the slide sliding part (133) passes through the slot recess (19) and on the transport side (22) of the support beam (18) with a vertical flange plate (143) has a mounting surface (144), the mounting surface (144) having a plurality of parallel, vertically running grooves (145) and a horizontally extending elongated hole (146).

69. Device according to claim 68, characterized in that on the corrugated mounting surface (144) there is a transport finger base carrier (147) which can be displaced in the double arrow direction (8) with respect to the flange plate (143) and can be fastened with screws (148) and which has an adjusting device (150 ) holds.

70. Device according to claim 69, so that a transport finger carrier (152) can be finely adjusted with respect to the transport finger base carrier (157) in the double arrow direction (8) via the adjusting device (150).

71. Device according to claim 70, characterized in that the transport finger carrier (152) has a bearing bolt (54) pointing horizontally away from the supporting cheek (18) and a support strip (155) running at a distance below the bolt (154), with on the bolt ( 154) a transport finger holder (156) is pivotally spring-loaded and the transport finger holder (156) protrudes a little in the transport direction (14), so that its swiveling downward is limited by the support strip (155).

72. Apparatus according to claim 71, d a d u r c h g e k e n n z e i c h n e t that the transport finger (158) on a side surface (157a) of the

Transport finger holder (156) sits.

73. Device according to one of claims 1 to 72, characterized in that the transport finger (158) has an upper edge (159), a ramp edge (160) rising from the front end of the upper edge (159) in the conveying direction (14) and a vertical, front end edge (161), so that a sharp-pointed Engagement corner (162) is formed, which can engage on edges of the contact elements or in predetermined recesses of the contact element band, for example in the scrap web.

Device according to one of claims 66 to 73, characterized in that the coupling rod (11) extends between the joint eyes (110 and 139), the coupling rod (11) being self-supporting, rigid and in each case pivotable about the central axes of the joint eyes (110 and 139) or the fastening screws (103, 140) on the swivel plate (7) and on the coupling plate (137).