DE1964915U - DEVICE FOR COVERING ROPES WITH PLASTIC. - Google Patents

Description

Re: G-usage model registration
My sign; 1277

I hereby register for the company Aktiengesellschaft für Seil- Industrie formerly Ferdinand Wolff, 68 Mannheim, submitted the object described in the annexes and applied for its entry in the role of utility models "

The name is "Device for sheathing ropes

with plastic ".

The registration fee is paid immediately as soon as the official file number is known.

The patent attorney:

^R A246 J53-3 5.f7

"6B MANNHEIM, 2.5.

DR. GERHARD RATZEL \ _h T ^ τ, Γ ^

Seckenheimer Str. 36 α · Telephone 46315 PATENT ADVOCATE

Postal check account Frankfurt / M. No. 8293 B α η k ι Deutsche Bank Mannhelm No. 72/00066 Part g r.-Codei Gerpat

Aktiengesellschaft für Seilindustrie, formerly Ferdinand Wolff

68 Mannheim

Device for sheathing ropes with plastic

The subject of the present innovation is a device which is used, in and of itself, with a plastic coating provided ropes, which have been freed from their plastic sheath and speared for the purpose of connecting their ends, again to be provided with a plastic coating without that a thickening arises compared to the rest of the casing.

Due to the endless design of this rope, the sheathing of the feeding point cannot be done in the extrusion process be performed. One therefore proceeds in such a way that the splice parts are slit open lengthwise from one of them

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Plastic tube is surrounded, which is then in the renovation Device through a combined heat-pressure treatment firmly connected to the two by the splice Rope ends is connected.

One such method for isolating splices is known per se, but the devices previously known for this do not meet all requirements.

With this isolation of the splice point, the Longitudinally slotted plastic hose is pulled onto the rope, preferably the steel rope, and then through the treatment in the device according to the innovation a seamless and invisible one Connection between the two hose ends and the corresponding find the one already on the rope Plastic jacket produced, while at the same time creating ' a firm adhesion of the applied hose to the splice point.

The essence of the present innovation will now be explained in detail with reference to the accompanying FIGS.

Figure 1 shows a perspective view of the device according to the innovation seen from one corner,

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Figure 2 is a cross section.

In both figures, the same elements are numbered with the same reference numerals.

The core of the device according to the innovation is the so-called actual shape, which consists of the upper part la and the lower part Ib. Both the top la and the Lower part 1b of the mold preferably has two bores made in the longitudinal direction, into which on the end face each pipe pieces are inserted, which are similar to the use for connecting several shapes in the longitudinal direction serve of pass pins. Another function of this hole « is that they are used as cooling water pipes after the molds have been heated.

The forms themselves are preferably made of a hard light metal alloy, they are preferably with a Steel jacket provided.

Depending on the length of the coat piece to be "welded on" Any number of mold halves la, Ib can be connected in series.

With the reference number 3 are two also in the longitudinal direction

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the shapes attached grooves or cavities denotes the to take up the after the fusing of the slotted hose on the splice point of the rope superfluous serving to become and thus draining plastic material. With a so-called pressure bracket is designated, which is mounted on the base plate 12 and for receiving a Hydraulic cylinder with piston 5 is used; at the lower end of the hydraulic piston, the pressure plate 6 is attached, which for a better pressure distribution on the upper part Shape. 7a are sheet-like heating elements, which are preferably attached in a stationary manner and which cover the side surfaces The upper and lower parts of the mold are firmly in contact. With the reference numeral 7b are also planar heating elements, which are arranged on the other side of the upper mold part and the lower mold part, denoted; these heating elements are 7b movably arranged on the base plate 12. After inserting the lower part of the mold and the upper part of the mold, the heating elements 7b pressed firmly against the molds by eccentric lever 10. Each molded part is provided with a thermostat 9; the power supply to the heating elements is denoted by 8.

The power supply is controlled segment by segment via the associated thermostats in such a way that both a constant Temperature achieved for all heating elements as well as a variation in temperature with respect to the total length of the to

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sheathed splice point several meters long can. This possibility of varying the temperature in sections means that you are able to use the innovation according to the invention Device for example in the middle of the sheathing point to maintain slightly lower temperatures than at the two ends at which the rope comes out of the device; these sins are usually somewhat higher Need heating than the places further inside.

The reference numeral 11 denotes mounting rails on which the individual molded elements are mounted in the longitudinal direction can be. Finally, 13 is the cable to be sheathed at the splice point, preferably steel cable, and 14 is the cable to be attached Plastic jacket.

According to a preferred embodiment of the innovation according to the invention The device is also operated by spring pressure Pulling element provided, which the two out of the forms pulls the protruding ends of the rope to the outside in order to keep the rope under constant tension within the mold.

It is easy to see that any number of upper mold parts la and mold lower parts Ib are connected in series can, if this is the length of the splice point to be sheathed

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requires. In this case sie judge, of course that too Number of pressure bars 4 with hydraulic cylinders 5 depending on the length of the entire combination of shapes. Come as well then a corresponding number of heating elements standing next to each other for use. The individual upper and lower parts of the mold, which are connected in series, so to speak, are of course related to their through-hole in which the to the sheathed rope is exactly .centered and tightly attached to each other arranged so as not to cause any imprints, pressure points or the like on the sheathed rope leave.

It is easy to see that the application of the Device that can be put together from a bunch of individual elements to form any total length, especially important when it is not used in a stationary manner is more practical and simpler than the use of one consisting of a lower mold part and an upper mold part Device.

Another advantage of the device according to the innovation consists in the fact that the mold closure is brought about by hydraulics, which can be applied with any force and even pressure can be exercised. This even pressure is essential for a single

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wall-free re-sheathing or sheathing of splice parts absolutely necessary. With the hydraulic device you can of course easily read the pressure on manometers and vary it as required.

In the present Figures 1 and 2, both the upper mold part and the lower mold part each have an in Cross-section viewed semicircular milled recess 15a or 15b, any other cross-section can of course also be used be available if this should be necessary in a special case.

It is very important for the molds to close completely also the presence of the cavities arranged on both sides .bzw. Grooves 3, in which the melted excess material the plastic hose flows off. This will result in both An absolute closure of the shape is possible as well as the achievement of a hose material with a completely round Cross-section that is required for the .Seiles to run properly on transport tracks.

Due to the special design of both the heating elements and the cooling system of the device according to the innovation it is possible to achieve a maximally smooth surface of the plastic jacket, which can only be achieved by rapid cooling

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can be created.

The moving ones. Heating elements with their quick-closing and quick-to-open eccentric lever locks can be opened by simply moving a lever from the position at that they are firmly pressed against the forms, are moved away from these sons, while at the same time or themselves Directly following this, passing coolant, preferably water, through the cooling bores

By opening or relieving the hydraulic valves 5, furthermore, all pressure is immediately removed from the forms, so that they can be taken apart very quickly. The The rope can then be removed from the mold immediately after the first quenching by the coolant of the cooling holes and additionally quenched in a water bath.

/ Protection claims:

Claims (6)

Wl38.fu.i7- 'protection claims 1.) Device for sheathing splice points on ropes, in particular steel cables, characterized in that they consist of an upper mold part (la) and a lower mold part (Ib), the notches (15a, 15b), which are preferably semicircular in cross-section, for receiving the with a longitudinally slotted Plastic tubing surrounded the splice point of the rope, bores (2) for the passage of coolant, as well as next the notch of the rope receiving, forming cavities (3) have additional notches for receiving molten jacket material, there is also that on the side walls of the molded parts heating walls (7a, 7b) are arranged, of which at least one is secured by a locking device can be quickly removed and the pressure on the molded parts from above can be brought about by a hydraulic arrangement. 2.) Device for sheathing according to claim 1, characterized in that that they consist of several aligned one behind the other Form upper and lower part elements consists. 3.) Device for sheathing according to claim 1 and 2, characterized characterized in that the molded parts are movably arranged on a base plate (12). HA. 138139 * 11.3. - Protection claims - 4.) Device for sheathing according to claim 1 to 3, characterized in that a hydraulic cylinder with piston (5) and pressure plate (6) is arranged on a pressure bracket (4). 5.) Device for sheathing according to claim 1 to 4, characterized. characterized in that the plate-shaped heating element (7b) can be pressed firmly against one side of the molded parts by an eccentric lever arrangement (10, 10a), while the opposite plate-shaped heating element (7a) is integrally connected to the base plate (12). 6.) Device for sheathing according to claim 1 to 5, characterized in that the molded parts consist of a hard Light metal alloy and the heating plates have steel jackets.