DE1650134A1 - Method and device for the production of insulating bushes from mineral wool and such material, and products obtained in this way - Google Patents

Description

N.V, Nederlattdse Steenwolfabriek; -... '

- XJMPIDEN ■; ■ .. "■■■ ν.

the Netherlands ·

Method and device for the production of insulating bushes made of mineral wool and such Uerkstoff, as well as in this Wise received products,

The invention relates to a method for producing bushings, such as shell insulators for cables or pipes, from mineral wool by winding up a mat made of mineral wool fibers containing a binding agent on a rotatable mandrel provided with openings while using an endless belt carrying the mat, whereby according to Maintaining the desired thickness of the mat wound on the mandrel, the supply of mineral wool fibers is stopped ₄

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According to this known method, after winding the mandrel is conveyed together with the insulating sleeve wound on it to a separate ßäum, where the mandrel with the wound the material containing the binding agent is exposed to the action of a heated FlUjEdSEis. That-in the material in. The binder in the form of a synthetic resin hardens and after a period of time, the finished insulating sleeve can be attached to the mandrel removed v / earth. In practice, this has a continuous process turned out to be not very flexible and one especially comes across the transition from insulating sleeves having a certain diameter to similar insulating sleeves having a different diameter Isolation sleeves for difficulties related to the circumstances prevailing in the curing room, while neither The bulkiness of the device takes a lot of haum to complete this procedure and there is still a lot of rejects, since the transport of the not yet hardened cans is easy to damage leads. As a result, the cost price of the bowls is smaller for smaller ones Production volumes are relatively high.

It is the object of the invention to create a method which offers the possibility in an economical way to manufacture insulating sleeves whose diameter can be changed quickly, but on the other hand a rifle of very good quality was obtained while the space required for the required device can be kept very small.

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BATHROOM QRlGINu

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According to the invention, the object is achieved in that the mandrel, after winding up the mat and separating the material present on the mandrel from the supplied material, without that the mandrel is raised for the purpose of carrying out a Fluxdums through the mandrel and / or on the outside of the mandrel what causes the hardening of the binder, to a Flui'dumquelle is coupled.

Because the hardening of the binder, the Synthetic resin, without conveying the mandrel with the wound on it Mineral wool fibers can make excellent insulating sleeves different diameters can be produced without the formation of defective moldings.

In order to maintain good mutual liability of the fibers advantageously becomes the mandrel during curing with another preferably lower or higher preferably slower than the iUifleungST speed rotating moved.

The invention also relates to a device for the production of insulating sleeves made of mineral wool fibers, like insulating shells made of itein wool, which have an opening " removable and rotatably mounted mandrel for winding a mineral wool mat containing a binder, as well as a rotatable endless belt around part of the The circumference of the mandrel on which the sleeve is wound is provided and with the .- »ollmatte between the endless belt and the mandrel

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can be inserted while the rotatable mandrel and the rotatable endless belt are arranged so that the same relative to each other can move away from each other, and further means' for the actuation of separating means are attached to terminate the supply of the material to be wound, this The device according to the invention is characterized in that the fluxdum feeds into or on the mandrel and / or outside means discharging near the cathedral are attached and. in such a way that the rolled up without undermining the dome Material can be cured.

Such a less bulky device offers Possibility to produce good insulating bushes without any waste

A preferred embodiment is characterized by this from that the speed regulating means are provided around the mandrel with another, preferably smaller or greater speed than when the mat is being rolled up. Has a lower speed The advantage is that the fibers are not moved towards one another during the curing process and that caused by the binding agent is mutual Liability and the context an extremely good one Provide insulating material.

In an advantageous manner, the mandrel is clamped on one side and on the other oeite it is or not with one free-hanging connection provided. Can also be used to remove the can an ejector member can be used.

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For the purpose of removal of the sleeve «ϊ-t a thorn is attached a two-sided pinched mandrel, with on both sides Fluid can be blown through the mandrel, the mandrel so. stored that the same with the wound material after the hardening of which the machine is removed for the purpose of Avoid standing still after the shell has hardened be removed with the thorn "and at the same time - a * new thorn be used

The invention also relates to after finished products obtained according to the invention.

The invention is based on an exemplary embodiment Illustrative drawing explained. In the course of the description, several will be used in an advantageous manner Details are highlighted »It shows in the drawing:

Figure 1 is a sketch of the inventive Device and

Figures 2 - * f some possibilities for attachment des Dorneε. "" --....

Figure 1 shows in. Sketchy representation that he inventive Device for the production of insulating sleeves Mineral wool fibers. This device has one with openings provided removable and rotatably arranged mandrel 1 for winding one a binder such as a thermosetting resin, containing mineral wool mat 2 on * This mineral wool mat 2 is made by peeling off a supply roll 3 made of mineral wool

009832/073 1 _BinwAL

BATH ORIGINAL

a paring knife k obtained. A conveyor belt 5 is provided for conveying this mineral wool mat 2.

Next is a part of the hollow mandrel circumference rotatable endless belt 6 is provided, which belt is driven by a drive roller coupled to the motor 9 via the belt connection 8 is driven. To the tension in the rotating belt To keep it as small as possible, a second driven pulley 8 is also provided, which also has a belt connection and slip clutch 9a is driven. The rotating band is continued over the rollers 10, 11, 12 and 13. The roller 11 can move in a vertical direction in a Gcllitz 1 * f, wherein a switching contact ■ 15 is arranged at an adjustable height of the slot. This switching contact is with a stationary Roller 16 connected which is located above the aforementioned conveyor belt 5 and the drive roller 7 and between them. Between the drive roller 7 and the conveyor belt 5 is still an intermediate roller 17 which rotates through the mineral wool mat is moved. It is clear that the role 17 also individually can be driven. .

Finally, the device has a fan 18 whereby warm tuft is blown through the line 19 into the mandrel can be. So that the warmth is distributed as well as possible. air in which the mandrel can be preserved are not drawn guide » walls provided.

The device works in the following way. After Peeling off the mineral wool mat from the supply roll 3 by means of the

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Schälmessefe k , the mat 2 is guided over the conveyor belt 5 and the target W to the rotatable belt 6. The belt driven by the drive rollers 7 and 8 takes the mineral wool mat 2. with it, whereby the mat is wound up on the mandrel that is driven in rotation. Because the diameter of the dome 1 increases due to the wound material 2, the roll 11 is moved in the vertical direction as a result of the shortening of the rotatable belt 6. As soon as the ball 11 has reached contact, a relay is activated, which causes the roller 16 to fall and move onto the roller · *? lays. (| As a result, the mineral fiber material lying on the endless belt is detached from the material taken from the supply roll. This way of separating the material, an excellent belt shape of the insulating sleeve is achieved.

After being fully wound up, the speed will increase of the rollers 7 and 8 by reducing the speed of the Motor 9 reduced and at the same time warm air through the fan and the conduit 19 is blown through the mandrel. V / improper the speed of should 7 and 8 can be increased. The line 19 can still carry a branch into the outside flows out near the cathedral, so that you can also look at the outside can treat the rifle with air.

After curing, the mandrel with the one wound on it is wound finished insulating sleeve removed. For hanging up the thorn can be a two-sided suspension, as shown in Figure 2, or a one-sided suspension (see Figure 3) and a suspension

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a removable connector being provided on one side Use «In the last two cases, the finished can immediately removed from the mandrel by means of an ejector member will

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Claims (1)

A N SPH U E GHE 1. Process for the production of bushings, such as shell insulators for lines, or drilling, from ee mineral wool ^ ⁷ by winding up a thin material made of mineral wool fibers containing a binding agent on a mangen with an opening HHi ** 'Vw. see rotatable mandrel fe-e *. Use of a mat supporting endless belt, whereby after 'maintaining the desired strength of the The mat wound on the mandrel feeds mineral wool fibers is ended, characterized in that the mandrel after the winding of the mat and the separation of the existing on the mandrel Material from the material brought in, without the mandrel with the wound material is excavated for the purpose of the passage of a fluid through the mandrel and / or is coupled to a fluid source on the outside of the mandrel, so that the binder hardens ·. . 2.. Method according to claim T, characterized in that while performing the fluidura the mandrel with a smaller one or greater speed than rotated during winding will. 3. Device for the production of insulating sleeves Mineral wool fibers, like insulating shells made of rock wool, are one of them with openings, removable and rotatably attached, mandrel for winding a mineral containing a binding agent 009832/0731 BATH ORIGINAL wool mat, and a rotatable endless belt which is provided around a part of the mandrel circumference on which the sleeve is wound, and wherein the thin wool mat can be inserted between the endless belt and the mandrel while the rotatable mandrel and the rotatable endless belt are so arranged are aa.ee same can move from relative to one another from one another, and further comprising means for actuating ^T rennungsmitteln are mounted about the feed dee material to be wound to end, characterized in that fluid feed end into and / or outside in the vicinity of the mandrels opening means are attached in such a way that the wound material can be cured without lifting the mandrel. > k. Device according to claims 3 »characterized in that a rotating roller and a stationary boll (16) are provided for separating the mineral wool fiber mat, the latter being transferred to the rotating roller (17) as soon as the desired diameter of the mandrel with the wound material is reached can be pressed. 5. Device according to claims 3 or k, characterized in that the device is provided with means _{2 for} regulating the speed of the rotatable mandrel in such a way, ■ that during the hardening of the binder, the mandrel with the wound material with smaller or larger Speed can be rotated 009832/0731 , 6 * device according to claims 3 - 5, characterized in, that the mandrel is pinched on one side and on the other may or may not be provided with a free-hanging connection. 7 »Device according to claims 3 to 51, characterized in that the mandrel is clamped on two sides« 009832/073 1 OAD