SU1528668A1 - Arrangement for displacing cores - Google Patents

Abstract

The invention relates to the manufacture of rubber products and is intended to move the mandrels during the manufacture of rubber hoses. The purpose of the invention is to increase the reliability of the device in operation. For this purpose, the connecting rods for the strips 6 and 7 are made in the form of shafts 8 and 9 and rigidly connected with them by the middle part of the double-arm levers 10 and 11. The shafts 8 and 9 are mounted on the frame 1 between the strips 6 and 7. The levers 10 and 11 are hinged are connected by free ends with strips 6 and 7. The power cylinder 13 is mounted horizontally between the frames and is connected by a rod 18 to a movable hinge 15. The latter is connected by connecting rods 16 and cranks 17 to the shaft 9. When the device is operated by a power cylinder 13 through rods 16 and cranks 17 rotates the shafts 9 with levers 11. The rails 6 move They are to meet each other and the mandrel 21 crimped adjacent legs of the moving chains 4 and 5. 2-yl.

Description

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figure 1

The invention relates to the manufacture of rubber products and is intended to move the mandrels during the manufacture of rubber hoses.

The purpose of the invention is to increase the reliability of the device in operation.

FIG. 1 shows the proposed device; in fig. 2 shows section A-A in FIG. one; in fig. 3 - section B - B in FIG. one.

The device for moving the mandrels contains drums 2 and 3 mounted on frame 1 with a drive (not shown) and enveloping their endless transporting bodies, for example, in the form of chains 4 and 5, which are parallel to each other. The arms between the chains of chains 4 and 5 are placed with the means to press their working branches against the mandrels. Each tool is described in the form of frames, which are formed 11А) allelicly located strips 6 and 7, connected with each other by means of t. T gi are made in the form of shafts 8 and 9 and two shoulders mounted on the frame I between strips 6 and 7 levers 10 and 11. The latter are rigidly connected to the middle part with shafts 8 and 9, respectively. The ends of the arms 10 and II are connected to the bars 6 and 7 by means of hinges 12.

In the device there are a power cylinder 13 for moving the frames perpendicular to the direction of movement of the mandrels and means d: 1 for synchronizing the movement of the frames. The latter is made in the form of a stationary guide 14 mounted on frame I, and installed in a guide with the possibility of reciprocating movement of the movable hinge 15. The latter is connected to the framework by p (swivel systems consisting of each connecting rod 16 and crank type 17. K) willow () pinch 17 17 are connected with shafts 9. Power cylinder 13 is installed horizontally between the frames and is connected by a rod 18 with a movable hinge 15. For compensations of local bulges on the mandrels, rubber bands are attached to the chains. 19. To reduce wear. chains on slats 7 are installed guides 20.

The device works as follows.

Dorn 21 is placed between the adjacent branches of chains 4 and 5. Cylinder 13 through the niTOK 18 moves the hinge 15 with the connecting rods 16, which through the cranks 17

ten

15

20,8668

four

the shafts 9 are turned with two shoulders 11. In this case, the slats 6 move towards each other against the stop in the mandrel 21 and clamp it on both sides. Then, the drive of the reels is turned on and when the chains 4 and 5 are moving, the mandrel 21 moves progressively.

When the mandrel is compressed with strips 6, the length of the branches of the chains adjacent to the mandrel increases, and with the strips 7, the length of the opposite branches of the chains decreases by the same amount. This prevents the chains from sprockets from jumping off and ensures their constant tension. During the return stroke of the rod 18 of the cylinder 13 6, the chains are loosened and the mandrel is released, and the straps 7 tension the chains.

The presence of local nodules on the mandrel is compensated by the deformation of the rubber pads 19 due to a partial rotation.

double shoulders 6.

levers 10 and 11 and waste

0

0

five

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Claims (1)

Invention Formula A device for moving the mandrels, containing mounted on the frame drums with a drive, enveloping them endless transporting bodies placed between the branches of the latter means to press their working branches to the mandrels, each of which is made in the form of a frame formed in parallel by two planks connected between by means of a pull rod, a ram for moving the frames perpendicular to the direction of movement of the mandrels and means for synchronizing the movement of the frames in the form of a stationary guide Mounted in it with the possibility of reciprocating movement of the movable joint connected to the framework by means of lever systems, characterized in that, in order to increase the reliability of the device in operation, the pulls are made in the form of shafts mounted on the frame between the planks connected to the lever systems and rigidly connected with the shafts by the middle part of the double-arm levers, which are hinged to the ends with the strips, the power cylinder being installed horizontally between the frames and connected with the UJTOKOM with the movable hinge. 557 eleven to fl-ft rotated 6 eleven 7 20 Ez