EP1107836B1 - Horizontal strip accumulator - Google Patents

Abstract

A horizontal strip accumulator for metal strip includes a looper car which is moveable along a travel path at at least one swivel gate which is moveable, when the looper car is moved, by the looper car between a starting position and an end position. For moving the swivel gate, the looper car acts on an actuating element which is connected with the swivel gate through a four-gear mechanism with two swivels. The swivel gate is rotatably arranged on one swivel and the actuating element is rotatably arranged on the other swivel. The actuating element has spoke-shaped projections and the looper car has counter projections which engage between the spoke-shaped projections.

Description

The present invention relates to a horizontal strip store for metal strip, in particular steel strip, with a movable along a travel path Sling car and at least one when moving the sling car movable from the sling carriage from a starting position to an end position Swing gate, the sling carriage for moving the swing gate acts on an actuating element, which with the Schwenktor via a four-bar transmission is connected to two pivot points, with the pivot at one and the actuator is rotatably disposed at the other of the pivots are, the sling carriage form-fitting when moving the swing gate engages in the field of activity.

A horizontal tape memory is e.g. B. from JP-B-45 039 444 known. For him, the actuator consists of a car tire, that of the sling car is taken in friction.

From JP-A-61 293 606 a generic horizontal band memory is known, in which the Actuating element is actuated by the sling carriage in a positive connection.

The swing gates not only have to be opened when the sling car passes through or closed, but also against unintentional Position changes must be saved.

The object of the present invention is a horizontal tape memory to create for metal tape while maintaining a simple overall design, the swing gates against unintentional changes in position are secured in a structurally simple manner.

The object is achieved in that the Schwenktor as a spring or weight trained retaining element, of which the Schwenktor both in the starting position and in the end position is kept stable, the Actuator has spoke-like projections with a projection thickness, which are spaced apart from each other by a spoke, and the Loop car with counter protrusions between the spoke-like protrusions intervenes.

If the counter-projections are roll-like, results a particularly low-wear and low-friction contact Counter protrusions with the protrusions. Also in this case the swing arm was carried particularly softly by the sling car.

If neighboring counter-projections alternate by a large and are a small distance apart, results a particularly low play of the actuator and thus the swing gate when the sling carriage during the actuation process its direction of travel changes.

The game of the swing gate / the actuator is practical Zero if the small distance with the protrusion thickness is such corresponds to one of the spoke-like projections between Adjacent counter-protrusions can be inserted around the small one Are spaced apart, and the sum of large and small distance at least approximately equal to the spoke distance is.

Figur 1

einen Horizontal-Bandspeicher und

Figur 2

einen Schlingenwagen und ein Schwenktor.

Further advantages and details emerge from the following description of an exemplary embodiment. In principle, the following show:

Figure 1

a horizontal tape storage and

Figure 2

a sling wagon and a swing arm.

1, a steel strip 1 runs out of a roll stand 2. The steel strip 1 is after it has left the roll stand 2 via a first deflection roller 3 and a second deflection roller 4 guided. The first deflection roller 3 is on a loop carriage 5 arranged. The loop carriage 5 is along a travel path movable in one direction x. Through the process the loop carriage 5 changes the length of the steel strip 1, which is located between the roll stand 2 and the second deflection roller 4. The loop car 5 therefore forms in cooperation with the Roll stand 2 and the second deflection roller 4 a strip store. Since the tape 1 is horizontal in the storage area, the Tape storage is a horizontal tape storage.

The loop carriage 5 can be of the roll stand 2 and the second Deflection roller 4 to be spaced up to 100 m. To an excessive To avoid sagging of the steel strip 1, it is therefore necessary to support the steel belt 1. There are swing gates for this 6 provided. When the sling car 5 is on the rolling stand 2 moves, it moves the closest Swivel 6 from a closed to an open position. In this case, the closed position corresponds to Start position, the open position of the end position. Vice versa the loop car 5 closes after passing one of the Swing gates 6 in the opposite direction of this swivel. In in this case the open position corresponds to the starting position, the closed position of the end position.

The swing gates 6 are thus moved by the loop car 5. For this purpose, the loop carriage 5 acts on each of the swing gates 6 on an actuating element 7. The interaction of loop car 5 and 7 actuating element is subsequently in connection with Fig. 2 explained in more detail.

2, the actuating element 7 is via a four-bar transmission 8 connected to the respective Schwenktor 6. The four-bar transmission 8 has two pivot points 9, 10 and two pivot points 11, 12 on. The fulcrums 9 to 12 are via lever arms 13 connected to each other. This is evident Schwenktor 6 on one and the actuator 7 on the other of the pivot points 9, 10 rotatably arranged.

The loop carriage acts to move the respective swing gate 6 5 on the actuating element 7. The sling carriage 5 engages positively in the actuating element 7. Thus, the actuating element is forcibly carried along 7. A frictional connection between the actuator 7 and loop car 5 is not required.

2 is caused by the fact that the actuating element 7 has spoke-like projections 14. The spoke-like projections 14 have a projection thickness d. They are spaced apart from one another at a spoke distance a. At the Loop car 5 are arranged counter-projections 15 which at Procedure of the sling car 5 between the spoke-like Engage projections 14. As can be seen from Fig. 2, are the counter-projections 15 are formed in a roll-like manner and alternately by a large and a small distance g, k from each other spaced. The small distance k corresponds to the protrusion thickness d such that one of the spoke-like projections 14 can be inserted between two counter-projections 15, which are spaced apart by the small distance k. The large distance g is such that successive spoke-like projections of the actuating element 7 between two counter protrusions 15 are inserted around the small one Distance k are spaced apart. The sum of great Distance g and small distance k is - at least approximately - equal to the spoke distance a.

The Schwenktor 6 must be in its starting and end positions be secured against unintentional changes in position. This can be done, for example, by a separate locking mechanism. According to the embodiment - here Fig. 1 - that Schwenktor 6 a holding element 16. From the holding element 16 is the Schwenktor 6 both in the initial position and in the end position is kept stable. According to the embodiment the holding element 16 is designed as a spring 16. Alternatively, could the holding element 16 can also be designed as a weight.

LIST OF REFERENCE NUMBERS

1

steel strip

2

rolling mill

3, 4

guide rollers

5

loop car

6

swing gates

7

actuator

8th

Four-bar linkage

9, 10

fulcrums

11, 12

pivot points

13

lever arms

14

spoke-like projections

15

against projections

16

Holding member / spring

a

spoke distance

d

edge thickness

g, k

distances

x

traversing

Claims (4)

1. A horizontal strip accumulator for metal strips (1), in particular, steel strips (1), with a loop car (5) that can be displaced along a displacement path, and with at least one swing gate (6) that is displaced from a starting position into an end position by the loop car (5) during the displacement of the loop car (5), wherein the loop car (5) acts upon an actuating element (7) that is connected to the swing gate (6) by means of a four-bar mechanism (8) with two pivoting points (9, 10) in order to displace the swing gate (6), wherein the swing gate (6) is rotatably arranged on one pivoting point and the actuating element (7) is rotatably arranged on the other pivoting point (9, 10), and wherein the loop car (5) positively engages into the actuating element (7) during the displacement of the swing gate (6),
   characterized by the fact
   that the swing gate (6) contains a holding element (16) that is realized in the form of a spring (16) or a weight, wherein said holding element holds the swing gate (6) in a stable fashion in the starting position and in the end position, by the fact that the actuating element (7) contains spoke-like projections (14) that have a thickness (d) and are spaced apart from one another by a spoke spacing (a), and by the fact that the loop car (5) engages between the spoke-like projections (14) with counter-projections (15).
2. The horizontal strip accumulator according to Claim 1,
   characterized by the fact
   that the counter-projections (15) are realized in the form of rollers.
3. The horizontal strip accumulator according to Claim 1 or 2,
   characterized by the fact
   that adjacent counter-projections (15) are alternately spaced apart from one another by a larger distance and a smaller distance (g, k).
4. The horizontal strip accumulator according to Claim 3,
   characterized by the fact
   that the smaller distance (k) corresponds to the thickness (d) of the projections in such a way that one of the spoke-like projections (14) can be inserted between adjacent counter-projections (15) that are spaced apart from one another by the smaller distance (k), and by the fact that the sum of the larger distance and the smaller distance (g, k) is at least approximately identical to the spoke spacing (a).

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