SU1047884A1 - Slot-chamber damper - Google Patents

Description

The invention relates to the manufacture of building materials, namely, equipment designed for the industrial production of reinforced concrete products with slit heat treatment chambers. A mechanism for closing a slit chamber consisting of paNSj, mounted in an inclined in the vertical plane of the directions, is known to be connected with a cable block. pneumatic drive system and drive shaft, support rollers in contact with guide lines, pneumatic and electrical equipment and molds for making jellied concrete products. The disadvantages of the known device are low operational reliability and design complexity, the presence of pneumatic drive necessitates additional pneumatic equipment. complexity of the automation scheme. In addition, there is no reliable sealing of the slit chambers around its perimeter, unreliable return of the door to its original position under its own weight at an angle of 10 ° to the vertical in connection with the possibility of closing it in the 0 tsih direction, large door weight, complicated maintenance of the device door skews, it is necessary to frequently tighten the cables, high consumption of compressed air and electric energy. The drive shaft occupies a large part of the area on the roof chambers, the design of the mechanism does not allow it to be used, for example, multi-layered heat-treating chambers and for the often common placement on the cover of the chamber a line for the molding of concrete products. The known end flap of the tunnel chamber contains a warmed shield with an elastic sealing gasket installed on the guides and a system of cables, the upper and lower ridges mounted on the shield 2. The disadvantages of the known solution are low operational reliability and complexity of the design, the presence of a lifting drive Doors cause additional maintenance costs, in order to avoid distortions of the car, frequent tightening of the cable is required, moreover, is it necessary to catch for the case of cable breakage, system occupies a portion of the area on the roof of the steam chamber, which necessitates increasing step height between the chambers. The presence of curved guides and the horizontal positioning of the open door does not allow the use of elevator-lowering devices for many brown chambers, which mechanize the processes of moving forms between chambers and pushing a form-wagon train. The purpose of the invention is to increase the chamber tightness and operational reliability. This goal is achieved by the fact that the slit chamber flap, containing a door fixed to the chamber frame with a heat insulating layer, upper and lower rollers, and a sealing element located along the perimeter of the door, is provided with clamps located in the lower part of the chamber and contacting the lower rollers, the door on the frame is hinged, the upper rollers are mounted on the door with the ability to interact with the products, and the seals to the element is figured. The clamps are made in the form of a spring-loaded plate. us pivotally connected to camera frame, Figure 1 schematically illustrates a slit valve chamber, a front view; FIG. 2 is the same side view; in fig. 3 - the same, at the moment of its opening at the approach of form with the product; in FIG. 4, the same is fully open; Fig 5 - raz1; in fig. b - section A-A in FIG. one; in FIG. 7 a section B — B in FIG. If in FIG. 8 is a section bb of FIG. cut G-, G in FIG. 4, the slit chamber flap includes frame 1, on which door 3 is fixed with the help of hinges 2 with inclination in the direction of movement of the products A ' On the door 3, upper rollers 5 / support and lower rollers 6 are mounted (guides ) with the ability to interact with the products 4. In the lower part of the chamber are presses 7, in contact with the lower rollers b and made in the form of a pressure plate 8 connected by means of a compression spring 9 with the base 10 mounted on the frame 1. Door 3 is represented em a welded steel structure, sewn up From the back side there are a sheet 11 and filled with a heat insulating layer 12. To ensure that the door 3 fits snugly to the frame 1, a figured seal 13 is mounted on the dyer around the perimeter of the slit chamber and is in contact with the fixed guides 14. The device works in the following way. When approaching the slit chamber, the shape with the product 4 presses its sides on the upper (supporting) rollers 5 "With further advancement, the form tilts the door 3 into the inside of the chamber, while contacting the upper rollers 5 and the lower (guiding) rollers 6.

Moving further along the chamber, product 4 contacts only with the lower rollers 6, preventing the front surface of the product from interacting with the door structure. After complete passage of the mold under the door, the latter, under the action of its own weight, returns to its original position, closing the entrance to the chamber, the figure seal 13 presses tightly against the rails 14. The inertia of the door movement is extinguished due to the fact that the lower rollers 6 interact with spring plates 8 clamps 7.

The use of the proposed device provides reliable sealing of the chamber and, as a result, reduces the consumption of heat-transfer agent, increases the operational reliability and durability.

The proposed device can

to be used for any technological schemes for arranging slot cameras, including for multi-light multi-bay chambers.

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Claims (2)

1. A SLOT CAMERA DAMPER, comprising a door with a heat-insulating layer, upper and lower rollers fixed to the camera frame, and a sealing element located around the door perimeter, characterized in that, in order to increase the chamber tightness and operational reliability, it is equipped with clamps located in the lower part of the chamber and in contact with the lower rollers, the door on the frame is hinged, and the upper rollers are mounted on the door with the possibility of interaction with the products, and the sealing element is made fig different. 2. Damper according to π. 1, m l of a- and b _to u and w I I that clamps performed S9 yen as a spring-loaded plate * pivotally connected to the frame of the camera. FROM I