SU1326432A1 - Apparatus for continuous vulcanization of rubber articles - Google Patents

Abstract

The invention relates to the manufacture of rubber products and can be used for the vulcanization of rubber products in molds with a stream of hot air, in particular, toys, and other molded products. The purpose of the invention is to increase the reliability of the device in operation. To do this, on each frame 10 of the conveyor 3, the lower half-molds 12 of the molds 1I are mounted by means of a rotatable axis 14 rigidly associated with them. The axes 14 have levers 15 with rollers 16 for engaging with the rotary grippers 28 and 29 of the mechanism 25 for opening and closing the press forms 11. Pneumatic cylinders 26 and 27 of the mechanism 25 are installed parallel to the branches of the conveyor 3. The grippers 28 and 29 are mounted to rotate along the route of the conveyor 3. When the device is operated, the opening force of the molds 11 is directed along the chains 5 of the conveyor 3, i.e. ION greatest rigidity of the system, which reduces the wear of the conveyor chain 3. This eliminated the effect of sagging of the chain conveyor 3 for operation of the mechanism 25. 3 yl. 9 (Л 18 17 со 1ЧЭ О5 со сс 29 3 3026 23 25 J 27 (puz. 3

Description

The invention relates to the manufacture of rubber technical products and can be used to vulcanize rubber products in molds with a stream of hot air, in particular, soft goods, toys and other molded products.

The aim of the invention is to increase the reliability of the device in operation by directing the opening-closing efforts of the molds along the chain conveyor, as well as eliminating the influence of the chain-conveyor sagging on the operation of the mechanism for opening and closing the molds.

FIG. 1 shows the proposed device; in fig. 2 - the same, top view; in fig. 3 — part of a chain conveyor with molds and a mechanism for opening and closing molds.

The device for continuous vulcanization of rubber products contains a vulcanization chamber 2 mounted on the frame 1, made in the form of a thermally insulated tunnel, and a chain conveyor 3, part of which is located inside the vulcanization chamber 2. The chain conveyor 3 consists of chains 4 mounted on rotary stations 5, nat 6 and the drive station 7. The drive station 7 is connected to the drive 8 by means of a chain transmission 9. On the chains 5, frames 10 are fixed, on the latter several molds 11 are mounted, each of which includes a bottom 12 and an upper mold half 13. On each frame, the lower half-molds 12 of all molds are rigidly connected to a rotary axis 14 mounted on the frame 10. On each rotary axis 14, a lever 15 is rigidly fixed, having a roller 16 at its free end. Between the lower 12 and upper 13 half-molds pivotally connected with finger 17.

Cress forms are equipped with locking means. Each locking means consists of an earring 18, which is pivotally connected at one end with a finger 19 to the upper half-form 13, and at the other end is installed inside the cracker 20, where it is fixed with the aid of nuts. The crackers 20 of all upper half-molds 12 of one frame 10 are mounted on a rotary axis 21.

For guaranteed tension on closing the molds 11, it is necessary that the total distance from the rotary axis 14 to the connector line of the lower half of the mold 12, from the connector line of the upper half of the mold 13 to the axis of the finger 19 and from the axis of the finger 19 to the rotary axis 21 should be equal to or slightly a large distance from the center of the rotary axis 14 to the center of the rotary axis 21.

A flag 22 is rigidly fixed on each frame 10. Sensors 23 and 24 are rigidly fixed on frame 1.

The frame 1 is equipped with a mechanism 25 for opening and closing molds, which are arranged parallel to the upper branch of the conveyor 3 of the pneumatic cylinder 26 to open the molds and the pneumatic cylinder 27 to close the molds, on the rods of which the grippers 28 and 29 are mounted, similar in design and turning along the route of the conveyor 3.

Each grip is made in the form of a plate 30, on which a support 31 is fixed, in which a spring-loaded dog 33 is mounted with the aid of a plate 32. A support 34 is rigidly fixed on the plate 30.

On the side of the pneumatic cylinder 27, a stopper 35 is installed to close the molds, consisting of a roller 36 mounted on the finger 37, which in turn is mounted on the rack 38 with the possibility of adjustment.

On frame 1, sections 39 of heaters are fixed. The section of heaters 39 consists of a board 40 with electric heaters 41 fixed on it.

0 On frame 1, a hot air circulation system is installed, consisting of a fan 42 for supplying heated air and a fan 43 for cooling the molds.

5 The device operates as follows. Electric heaters 41 and fan 42 are turned on to supply hot air (Fig. 1). In this case, the electric heaters 41, combined in section 39, heat the air contained in the vulcanization chamber 2.

Fan 42 for supplying heated air provides circulation. After reaching the set temperature with hot air for vulcanizing the products, the drive 8 and the fan 43 are turned on to cool the molds. The rotation from the actuator 8 is transmitted through a chain transmission 9 of the drive station 7. From the drive station 7, the chains 4 of the conveyor 3, the turning stations 5, the tension stations 6, and also the frame 10 with the molds 11 are driven.

When one of the frames 10 with the molds 11 approaches the mechanism 25 for closing and opening the molds (Fig. 3), the flag 22 goes to the sensor 24. This turns on the pneumatic cylinder 26 to open the molds of the mechanism 25. Stem of the pneumatic cylinder 26 to open the molds, the gripper 28, which is attached to the rod of the pneumatic cylinder 26, opens and moves to open the molds. While the gripper 28 is moving, the dog 33 rests on the roller 16 of the lever 15 fixed on the rotary axis 14. The rod continues to move, while the dog 33 turns around the finger 32 until the roller 16 passes around the shaft 16. The rod occupies the left extreme position , while the dog returns to its original position under the action of the spring and rests against the other end against the stop 34, mounted on the grip plate 30 28. Za0

The piston rod 26 to open the molds returns to its original position. When moving backward, the spring-loaded dog 33 approaches the roller 16 and turns the lever 15 with a swivel 5-axis 14 and the lower half-shapes 12 of the frame 10 rotates. By turning the lower mold halves 12, means for locking the molds are opened.

sharpening the lever 15 with the roller 16 mounted on it in the opposite direction relative to the rotary axis 14. The lever 15 with the roller 16 occupies the initial position, and the upper 13 and lower 12 half-shapes rotate in the same way as they were opened, only in the opposite direction. At the same time, the molds I 1 are closed and the means for locking are not securely closed. At the same time, the force of opening the press is dependent on the sagging of the branch of the conveyor 3. Forms 11 are directed along chains 4 and 5;

conveyor belt 3, i.e. in the direction of the greatest rigidity of the system, which reduces the wear of chains 4 and 5 and, as a result, increases the reliability of the device as a whole.

The tool for locking the mold is opened in the following manner.

The bottom mold 12, turning relative to the rotary axis 14, moves

Inside which the products are located (Fig. 1), pass through the drive station 7 and enter the vulcanization chamber 2, where the molds of the molds 11 are heated with the help of hot air. After exiting chamber 2, this frame 10 passes by the cooling fan 43, where the mold is cooled.

 ,,,, When approaching the following frames 10 to mehapalets 17 up. The finger 17, moving, 20 to the bottom 25, for turning and opening, turns the pivot axis 21, which in the molds the process

uncover molds, remove finished products and lay new ones. The molds are then closed, and they are vulcanized. The cycle is repeated.

the turn turns the rusk 20 with the earring 18, while the finger 19 rises up and the top half of the mold 13, turning, rises as well. Thus, all the molds 11 of this frame 10 are open. The products are laid in each mold 11 of this frame, which continues to move using chains 4 of the chain formula of the invention.

A device for the continuous vulcanization of rubber products containing a vulcanier 3. When this frame approaches 10 to 30, a lowering chamber, a chain conveyor with a sensor 24, a flag 22 rigidly fixed by means of frames fixed on it, is mounted on the frame and is included in sensor 24. Included on the last mold with a pneumatic cylinder 27 for closing by means of presses for locking them and a mechanism for molds, in which the rod is in the initial position for opening and closing of molds, having extended pneumatic cylinders and mounted on

In this case, the spring-loaded pawl 33 with 35 rods of them is spring-loaded pivoting, it engages around the finger 32, abutting cotton wool, characterized in that, for the purpose, the elevator 36 of the restrictor 35, which allows the device to work reliably in operation, on

To each frame, the lower mold halves are mounted by means of a rotary axis rigidly associated with them, having a lever with a roller for interacting with the rotary grippers, while the pneumatic cyclone moving the frame 10 with the molds 11 to pass the lever 15 with the roller 16.

The pneumatic cylinder rod 27 is pushed into the pneumatic cylinder, moving the gripper 29, whose structure is similar to that of the gripper 28. In this case, the spring-loaded dog 33 of the gripper 29 moves away from the roller 36 of the stopper 35, unfolds to the stop 34 and approaches the roller 16, turns 40

The lindra of the mechanism for opening and closing the molds are installed parallel to the branch of the conveyor, and the grippers are mounted so that they can be rotated along the conveyor path.

sharpening the lever 15 with the roller 16 mounted on it in the opposite direction relative to the rotary axis 14. The lever 15 with the roller 16 occupies the initial position, and the upper 13 and lower 12 half-shapes rotate in the same way as they were opened, only in the opposite direction. At the same time, the molds I 1 are closed and the means for locking by unforms are securely closed.

inside of which the products are located (Fig. 1), pass through the drive station 7, get into the vulcanization chamber 2, where the molds 11 are heated with the help of hot air. After exiting chamber 2, this frame 10 passes by the cooling fan 43, where the mold is cooled.

With the approach of the following framework 10 to the formula of the invention

40

The lindra of the mechanism for opening and closing the molds are installed parallel to the branch of the conveyor, and the grippers are mounted so that they can be rotated along the conveyor path.

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Claims (1)

Claim A device for the continuous vulcanization of rubber products, containing a vulcanization chamber, a chain conveyor with frames mounted on it, mounted on the last molds with means for locking them, and a mechanism for opening and closing the molds, having pneumatic cylinders and spring-mounted on their 5 rods rotary captures, characterized in that, in order to increase the reliability of the device in operation, on each frame the lower mold half-molds are mounted by means of a rigidly connected rotary axis, ^υ guide lever with a roller for interaction with rotary grippers, and the cylinders of the mechanism for opening and closing the molds are set parallel branch conveyor and grippers are mounted pivotally along the track conveyor. 5 3 25 W 5 42 2 ifQ FIG. 7 -fi it about θ Oh ABOUT Oh oh oh oh oh 7ft.it 0-0 -O 0 o o o o “7 4 to 11 of FIG. 2