DE1504901A1 - Hollow sheet manufacturing process and equipment for its implementation - Google Patents

Description

HOHLPLATTEN-HERSTEB @@ UNGSV.RFAHREN UND ELIH @@ I ATTENTION TO S @ INER IMPLEMENTATION The brfingdung relates to processes for the production of high-quality structural panels unib Facilities for their implementation.

Known cind method for the production of hollow panels @ from too Sheets of molded plastic masses in a discontinuous i'orm and pressing process, in which cavities by means of cores inserted between the lanes during molding and are removed from the finished piece after pressing, are to be cut out.

The pressing takes place in pressing devices of various types, the known Processes and facilities show the disadvantage of the discontinuity of construction L atten production on since the pressing process can be carried out separately. With such a manufacturing method, limited lengths can be manufactured.

The purpose of the invention is the development of such a procedure and such a facility, the continuity of the operation and the Unlimited production of long @ plates could be guaranteed. This task is made by combining the molding and the pressing process into one continuous, consequent work process solved. with this in mind, this is what exists Process in that at least three endless plastic webs at the same time for forming are fed, at least one of which forms the inner corrugated plate layer and at least two other the outer walls of the plate, the molded hollow building plate is passed continuously through its pressing device.

In the sense of the procedure, the establishment is provided with cores, have freedom of movement to and fro, parallel rows to one another and to the axis of movement longitudinal are arranged; «Between the cores is the constrained the web forming the corrugated inner layer. the facility also has Via a pressing device with upper and lower pressure plate, for which also the surface is parallel Freedom of movement is provided; the front part of each one The longitudinal core is located between the pressure plates.

For a better illustration, an example is also used Embodiment of the invention with reference to the accompanying drawings in detail described, so Figure 1 is a side view of the Einricktung, Figure 2 is a plan view, Fig. 3 the same device as in Fig. 2 in cross-section according to 1-1.

Figure 4 illustrates the cross-section of a finished bag.

The facility consists of learning 1, which are on loan in parallel with each other are arranged, and from a pressing device.

The cores can be equipped with heating devices.

The pressing device consists of pressure plates 2, which are on the ferrule 3 are mounted to which the hydraulic drive 4 reciprocating parallel to the surface Mediation mediated; the pressure plates 2 are adjustable in height by hydraulic cylinders 2; the endless metal bands 6 serve as layers between which the pressing process takes place accomplishes. The front part of each core is placed lengthways between the Pressure plates 2 positioned. By means of hydraulic drives 7, the cores are reciprocated brought forward movement.

For oxime, the reinforced plastic mass becomes three endless at the same time Bahneü promoted, ton de @ en the one 8 between the parallel to each other Cores 1 is inserted and the other two 9 and 10 on and under the cores like that ..that they form the walls of a hollow construction panel. When the pressure plates 2 are brought apart, promote the hydraulic drives 7 in the Cores moved the molded plate toward the press. Thereafter the pressure plates 2 are closed by the hydraulic cylinders 5 and clamp the workpiece to be pressed. The moving frame moved by the hydraulic drive 4 3 begins its forward movement and with it the pressure plates 2, the cores and that taking the workpiece to be pressed forward; the @ etallbändelagen 6 are with the pressure plates 2 offset in synchronism.

After eating 1, the pressure plates 2 are brought apart and run back. During this one of the kernels is pushed back hydraulically, while the others continue their forward movement with the material to be pressed.

In the next @ augenglick the pressure plates close again and the The operation is repeated with the difference that the ij: the I series next Core is now pushed back while the others continue their forward movement.

The speed of the cores on return is 6-10 times 50, like the one at the suggestion.

The hollow building panels are pressed with repeated superposition, so that one and the same web section is subjected to a viehrw-fold pressing process becomes something of the speed of the conveyed in the pressing device @ erbestücks depends.

The pressed honing board is first trimmed on the sides and then cross-cut to the desired format.

Although the present invention with reference to the preferred uSführung is described, other, not changing the meaning of the invention, Performance variants come into consideration

Claims (3)

PATENT REQUESTS: 1. Process for hollow building board production in the way the shape of plastic sheets in which cavities can be removed by inserting them Cores are formed, as well as by way of pressing, d u r c h e k e n n z e i -c h n e t that nt least three endless paths to form, of which at least one is inserted between cores arranged parallel to one another and the corrugated Forms the inner layer of the platle, while the others, the minimum number of which is two, forming the outer walls of the plate, are conveyed, the molding continuously is driven through a pressing device. 2. Training to execute it method according to claim 1, which consists of a pressing device with upper and lower pressure plates and cavities forming cores consists, d u r c h e k e n n z e i c h n e t @ that the pressure laths and the kernels have reciprocating freedom of movement, the kernels in the sense the axis of movement are arranged and with their front part between the pressure plates to lie kosunen. 3. Device according to claim 2, d a d u r c h @ e -k e n n s e i o. c .. n e t, since the pressure plates are mounted on a chassis, through which Antxieb provided for this purpose, the feed and return movement is conveyed, and each individual core receives reciprocation from a dedicated drive. L e r s e i t e