Device and method for producing green tyres

Abstract

A device for loading at least one carcass drum with tire components for green tires, a tire-building machine and a method for producing green tires. The device for loading the at least one carcass drum with tire components includes a placing device, which can move linearly in the horizontal direction, for delivering material components to a carcass drum, wherein the at least one placing device can be moved vertically so that a vertical movement in addition to or alternatively to the horizontal movement is facilitated and, in this way, the ply server is designed to be self-opening.

Claims

1. A tire building machine for producing tire blanks, said tire building machine comprising: a rotary table having a vertical axis around which the rotary table is pivotable; a double-drum carcass machine arranged on the rotary table and disposed so as to be pivotable with the rotary table in a horizontal plane, wherein the double-drum carcass machine includes two carcass machines each having one carcass drum; and at least one ply server for feeding the double-drum carcass machine with tire components for tire blanks, wherein the at least one ply server has at least one placing device and is configured so as to open and is disposed so that the at least one placing device in a loading position protrudes into a kinematic moving area of the double-drum carcass machine, wherein the at least one placing device is movable in a linear manner in a horizontal direction for supplying material components to the carcass machine, wherein the at least one placing device is movable vertically so that, additionally or alternatively to the horizontal movement, a vertical movement is facilitated and thereby the ply server is configured to open, wherein the at least one placing device is formed by an upper placing device and a lower placing device, wherein the upper placing device and the lower placing device protrude in the loading position into the kinematic moving area of the double-drum carcass machine, and wherein the rotary table is configured so that pivotable movement of the rotary table is interruptable in at least one loading position.

2. The tire building machine for producing tire blanks according to claim 1, wherein three ply servers are disposed on both sides of the double-drum carcass machine.

3. The tire building machine according to claim 1, wherein the at least one ply server is disposed so as to open in a horizontal direction.

4. The tire building machine according to claim 1, wherein the two carcass machines of the double carcass machine have longitudinal axes and are disposed on the rotary table so that the longitudinal axes are substantially parallel.

5. The tire building machine according to claim 1, wherein the carcass machines are mutually offset in a direction of the longitudinal axes.

6. The tire building machine according to claim 1, wherein the carcass machines by way of the carcass drums are disposed so as to point in mutually opposite directions.

7. The tire building machine according to claim 1, wherein the vertical movement of the at least one placing device is a linear or pivoting movement.

8. The tire building machine according to claim 1, wherein the movement capability of the at least one placing device is a combined horizontal and vertical movement.

9. The tire building machine according to claim 1, further comprising lifting cylinders, servomotors, or a rotary cam provided so as to move the at least one placing device.

10. The tire building machine according to claim 1, wherein the lower placing device is movable in a downward manner, and the upper placing device is movable in an upward manner.

Description

BRIEF DESCRIPTION OF THE DRAWING

(1) FIG. 1 shows a schematic illustration of the tire building machine (1) according to the invention, in a first exemplary embodiment in a plan view;

(2) FIG. 2 shows a schematic illustration of the tire building machine (1) according to the invention, in a first exemplary embodiment in a front view;

(3) FIG. 3 shows a schematic illustration of the tire building machine (1) according to the invention, in a first exemplary embodiment in a side view; and

(4) FIG. 4 shows a schematic illustration of two carcass machines which are conjointly disposed on a rotary table and which by way of the longitudinal axes thereof extend so as to be substantially mutually parallel and by way of the assigned carcass drums point in mutually opposite directions.

DETAILED DESCRIPTION OF THE INVENTION

(5) FIG. 1 shows the schematic illustration of the tire building machine (1) according to the invention, in a first exemplary embodiment in a plan view. Three ply servers (20A, 20B, 20C) are grouped around a centrally disposed double-drum carcass machine (10).

(6) The double-drum carcass machine (10) is two carcass machines (12) having assigned carcass drums (11) which are disposed on a rotary table (13) so as to be pivotable in a horizontal plane about a vertical axis. The pivoting movement can be stopped at any position, in particular at one or a plurality of feeding positions for feeding the double-drum carcass machine (10) with tire components for tire blanks. The carcass drums (11) are fitted so as to be rotatable on the carcass machines (12).

(7) The three ply servers (20A, 20B, 20C) are disposed in relation to a feeding position of the rotary table (13) of the double-drum carcass machine (10) and to the rotation axes position of the carcass machines (12) that result therefrom such that the carcass drums (11) of the carcass machines (12) can be fed with non-vulcanized rubber material or other web-shaped or sheet-shaped semi-finished materials for the production of tire blanks in a simultaneous and/or a temporally offset manner.

(8) FIG. 2 shows the schematic illustration of the tire building machine (1) according to the invention, in a first exemplary embodiment in a front view. The ply servers (20A, 20B, 20C) on that side thereof that faces the double-drum carcass machine (10) are specified with upper placing devices (21A, 21B, 21C), lower placing devices (22A, 22B, 22C), and dynamic shoulder contact rollers (23) which are disposed below the lower placing devices (22A, 22B, 22C) of the ply servers (20A, 20B, 20C).

(9) FIG. 3 shows a schematic illustration of the tire building machine (1) according to the invention, in a first exemplary embodiment in a side view, by means of a sectional illustration along the rotation axes position of the carcass machines (12) according to FIG. 1.

(10) According to the invention, the at least two ply servers (20A, 20B, 20C) in spatial terms are disposed so as to be as close as possible to the double-drum carcass machine (10) and are embodied so as to “open”.

(11) As close as possible means that the upper placing devices (21A, 21B, 21C), the lower placing devices (22A, 22B, 22C), and the dynamic shoulder contact rollers (23) of the ply servers (20A, 20B, 20C) in the respective feeding position thereof at least in part protrude into the kinematic moving space of the double-drum carcass machine (10) and assume a colliding position when the rotary table (13) pivots the double-drum carcass machine (10) out of the feeding position thereof.

(12) The embodiment so as to open refers to the possibility of the upper placing devices (21A, 21B, 21C) and/or of the lower placing devices (22A, 22B, 22C) and/or of the dynamic shoulder contact rollers (23) of the ply servers (20A, 20B, 20C) being movable in a linear manner in a horizontal direction and, additionally or alternatively, being movable vertically in a linear manner and/or being embodied in a pivotable manner such that the elements that protrude into the kinematic moving space of the double-drum carcass machine (10) are capable of being moved out of the colliding position thereof when the rotary table (13) pivots the double-drum carcass machine (10) out of the feeding position thereof.

(13) If a vertical, linear, or pivoting movement or component of a movement is carried out, particular consideration is awarded to the lower placing devices (22A, 22B, 22C) being movable downward, and to the upper placing devices (21A, 21B, 21C) being movable upward. On account thereof, the double-drum carcass machine (10) in a production phase in which no semi-finished material is being supplied can freely pivot into the then vacated kinematic moving space without any collisions arising.

(14) The opening ply servers (20A, 20B, 20C) according to the invention in spatial terms allow the arrangement thereof to be as close as possible to the double-drum carcass machine (10), in this way facilitating the reduced area and space requirement of the tire building machine (1) while increasing the output by reducing the cycle times and thus the delivery.

(15) The kinematics implemented during operation of the device can be particularly well understood when the illustrations of FIG. 1 and FIG. 2 are combined. It can be seen from FIG. 1 that the rotary table (13) is moved about a vertical axis, and on account thereof the carcass machines (12), disposed on the rotary table (13), with the respective carcass drums (11) thereof are likewise moved in a horizontal direction along circular paths. In order to enable the carcass drums (11) to pass through the placing devices (21, 22), the placing devices (21, 22) are opened by way of at least one vertical movement. The placing devices (21, 22) by way of this opening movement have a mutual spacing in the movement region of the carcass drums (11).

(16) FIG. 4 in an enlarged fragmented illustration of FIG. 1 visualizes the arrangement of the two carcass machines (12) on the rotary table (13). The rotary table (13) has the vertical rotation axis (30), as has already been mentioned.

(17) The longitudinal axes (31, 32) of the carcass machines (12) are disposed so as to be offset in relation to one another and in relation to the rotation axis (30). The carcass machines (12) in the direction of the longitudinal axes (31, 32) are disposed beside one another at least in portions. The respective carcass drums (11) of the carcass machines (12) point in mutually opposite directions.

(18) The aforedescribed arrangement of the carcass machines (11) on the rotary table (13) combines a compact arrangement with good accessibility both when feeding the carcass drums (11) as well as when carrying out maintenance jobs.