SU804497A1 - Device for forming laminated hollow articles - Google Patents

Description

(54) DEVICE FOR FORMING LAYERED EMPTY PRODUCTS

in fig. one; in fig. 4 shows a section B-B in FIG. 3; in fig. 5 - device with elevated upper hollow cores; in fig. 6 is a cross-section of the FIG. five.

Canvas. 1 of the middle layer, fed from the middle layer feed mechanism, alternately surrounds all the lower 2 and upper 3 void formers. The blade folds are made in the form of figured plates 4 and are installed along the extreme void-forming. The benders enclose the extreme hollow cores from three sides — from above, from the side, and from the bottom — while there is a gap between the beaters and the holders for passing the folded web of the middle layer of the article. In the hollow cores, there are channels 5 into which tubes 6 are fed, depending on the operation, t, or coolant. Void formers are provided with steps 7 for connecting to a drive. The rolls 8 are installed in front of the entrance to the press of the canvases of the upper and lower layers of the product supplied from the respective mechanisms. The pressing plates 9 are located above and below the cores. Along the extreme void formers are curly side pressing clamps 10 connected to the power drive. The side surface of one of the two extreme void-formers has the shape of a longitudinal protrusion, the other - the shape of a groove (recess). The adjoining surfaces with the |) igur lateral pressing clamps have respectively the shape of a counter groove or a counter projection. Behind the plates of the press, during the forming process, there is a mechanism for raising the hollow cores in the form of unevenly high stops 11 and 12, mounted on a common traverse 13, connected to the drive of its vertical movement. Behind the holders there is a product fixation mechanism, made in the form of a pressure plate 14 and a support table 15.

The device works as follows. To fill the middle layer of the product and clean the surfaces of the waste formers using the crossbar 13, the upper vacuum formers 3 are lifted. Lift up, the crossbar by the stops 12 raise the front ends of the upper vacuum formers, while the rear ends of the upper vacuum formers also lift with the help of ledges 7. lugs 11 lifts the front ends of the lower void formers 2. After cleaning the void formers and refilling the blade 1 of the middle layer, the upper Pustorobra Summers using the traverse are lowered. Filling of the upper and lower layers of cloths is carried out through the rolls 8. The sheet 1 of the middle layer is tucked with the help of figured plates 4, covering the lateral surfaces of the extreme hollow cores. Ends

this web is launched under the bottom plane of the outermost core-holders. The canvas of the lower layer of the product overlaps the running end of the middle layer. Due to this, and the shaped side pressing clamps, the profiles of the side edges of the product with a protrusion and depression are molded. After heating the pressure plates 9, the side clamps 10 and the formers, the pressure plates and the side clamps are closed. Forge Extract

Product under pressure occurs either simultaneously with the longitudinal joint movement of the core-forming elements and the pressing bodies, or with the fixed-core forming bodies and pressing bodies. In the first case, after the end of the movement of the emptying bodies and the pressing bodies in the direction of movement of the product, the pressing plates and side clamps open and return to their original position along with one of the groups of empty formations. In the second case, after the pressing bodies are opened, the product is moved by the holders in the direction of its exit from the press, while all of the Net formers are moving forward at the same time. Then one of the groups of holders is returned to its original position with a fixed product. In both cases, before moving the group of emptying forces to the initial position, the pressure plate 14 is lowered onto the product and presses

- it to the supporting table 15, holding the product for the duration of the movement of the holders.

After the initial position of the core holders has been reached, the molding cycle 5 is repeated.

The present invention makes it possible to reduce the laboriousness of filling a press material into a forming device, to make hollowing agents available for cleaning, to ensure uniform heating of the material throughout the thickness of the molded product, to eliminate distortion of the products and jamming of the emptying elements as they return.

Claims (4)

Invention Formula . A device for forming laminated hollow products, comprising press plates, upper and lower Hollow cores with longitudinal movement drive, upper, middle and lower layer feeding mechanisms, characterized in that, in order to facilitate operating conditions and improve product quality, the apparatus is equipped with a hollow core forming mechanism , made in the form of unevenly high stops, mounted on a common traverse connected to the drive of its vertical movement. 2. A device according to claim 1, characterized in that it is provided with beaters of the middle layer, made in the form of figured plates covering the extreme void-forming and forming a gap with the latter, corresponding to the thickness of the middle layer. 3. The device according to claim 1, characterized in that it is provided with a fixing mechanism products made in the form of clamping plate and support table. 4. The device according to claim 1, characterized by by the fact that in the area of pressing the void-forming agents are made with channels for the supply of heat coolant. Sources of information taken into account in the examination 1. USSR author's certificate No. 191744, cl. In 29 C 3/02, 1962 (prototype). 7777/10 U //// // L U / 7 // L SrigZ FIG. 2 10 FIG. five FIG. 6