CS253419B1 - A device for continuously wrapping flexible nipples - Google Patents

Abstract

The solution concerns a device for continuous wrapping of flexible pipes, which consists of storage drums for storing rolls of fabric web, guide rollers, emergency safety mechanism, guiding mechanisms, pressure rollers, guide beds, a welding bed and a welding mechanism. Its essence is that the storage drums, which are equipped with a guiding mechanism, are rotatably and slidably mounted in a horizontal position, one of which is always located under the guiding beds and the guiding mechanisms are connected to the emergency safety mechanism. This device is advantageously used as part of a line for continuous production and wrapping of flexible pipes.

Description

253419

BACKGROUND OF THE INVENTION The present invention relates to a device for continuously wrapping flexible tubes.

Flexible drainage of plastic pipes in certain soil conditions are clogged with ground particles and decommissioned. To prevent this condition, they are deposited in the ground already covered with a fibrous filter.

So far, the factory wrapping devices for drainage flexible flexible tubes wrap these either with a filter mat made of fibers of different origins or with filter fabrics.

Devices wrapping flexible tubes with filter mats are all designed as separate line production plants, consisting of a fiber stock container, a bomogenizer, a transport device, a press and quilting device, forming a fibrous mat and a width. a wrapping device consisting of a set of guide and thrust pieces and a wrapping device that fixes the fiber mat on the tube by threading it. The device includes two drums for unwrapping and winding the already wrapped flexible tube. The disadvantage of this device is the high energy demand, space and service demands, the need for double handling of the rolls of flexible tubes and their intermediate transport from the production line to the packaging line. A further disadvantage is the complicated solution of fixing the mat by the thread wrapping, which is also the low speed of wrapping. In addition, the fixing of the yarn filter wrap is not complete, the wrapping of the filter material from the tube occurs when the yarns are torn. Such damage takes place in the transit, handling and necessary shortening of the construction site.

The devices wrapping the drainage pipes flexibly through the filter fabric are flood-treated as separate production lines. These lines can be placed either in the factory of flexible pipe production, in any factory or directly on the drainage line. They are substantially simpler, eliminating all of the need for forming the fiber mat from the fibrous raw material. In fact, wrapping and fixing the sleeve on a pipe is similar to that of the prior art. The device exhibits similar non-advantages to the prior art, but is simpler, requiring a lower power consumption of fewer operators. Other devices wrapping the tube pipes flexibly with a filter fabric containing plastic fibers, designed as separate lines, have eliminated the complicated thread wrapping process and continuously welded the edges of the fabric with hot solder. The disadvantage of this device was the necessity of handling the flexible tube installed on the unrolling drum, the necessity of transporting the uncoated tubes from their production line to the packaging line.

Most of the aforementioned drawbacks have been avoided by a device allowing the flexible tube to be wrapped in a filter cloth containing plastic fibers immediately in the flexible lining tubes after leaving the perforating device so that the filter fabric web is fed through the guide plate. to the pipe behind the perforating device, gradually wrapping it, the edges of the fabric being heated and welded to one another at the top of the tube. The already wrapped tube is then fed to the winding drum at the end of the flexible tube production line. The coating speed at this device is equal to the extruder extrusion speed of the flexible tube. The disadvantage of this solution is the necessity of interrupting the continuous wrapping of the tube after the usual 100 m long filter fabric storage belt is needed, which is needed change for new. Thus, in this solution, a single roll of wrapped flexible tube is produced on a complex line, alternating with the production of one roll wrapped flexible tube. In addition, the movement of the filter fabric strip is derived from the wrapping drum which is not completely regular.

The aforementioned drawbacks are eliminated by the device for continuously wrapping flexible tubes, which consists of storage drums for storing web rolls, steering rollers, emergency locking devices, guide mechanisms, pressure rollers, guide bearings, wrapping beds and welding mechanisms the principle of which is that the storage drums are clad with a guide mechanism, are rotatably and slidably mounted in a horizontal position, one of which is co-located by the chambers, the engaging mechanisms being associated with the emergency locking mechanism. The flexible drainage device is a perforating device leading the wrapping device so that its movement is caused only by the compressive force derived from the movement of the shaping chains and the perforating device, by means of a conduit through which the tube goes into the wrapping device where it is wrapped a strip of filtering fabric containing plastic fibers such that the use of the fabric from one stockpile does not need to be interrupted by wrapping, but by automatic securing it is possible to continue the continuous wrapping of the filter fabric from another stockpile.

In fact, the coating is done at the same speed as the flexible drainage tube. The strip of filtering fabric is wrapped in a drainage tube by means of molding profiles, wherein the bonded outer strips of the strip are continuously welded with hot-air or heated teflon-coated moldings, optionally with ultrasound. The resulting joint is homogenized by the pressure generated by the pressure rollers. After wrapping, the tube is wound on a wound bobble, where it cuts after reaching the desired length and begins to wind up on parallel bubon. The filter fabric belt stores the line into the storage drum, each of which is conveyed to its own feed mechanism. Each guiding mechanism is coupled to an emergency interruption device which, in the event of a failure in the coating process itself, or the failure of the welding aggregate, the failure of the electrical power source or the extrusion line, interrupts the filter tex strip. The operator fixes the beginning of the fabric strip from each roll to the guide bed of the feed mechanism. After switching on, the guidance mechanism moves the post-processing position, in which the transfer of the flexible drainage tube ensures the feeding of the textiles to the wrapping bed, where the wrapping process itself takes place. After the filter web has been consumed from the same drum, the second web of the second feed drum is automatically guided by a second guidance mechanism. The tex-tile strip must be at least 1 cm wider than the tube of the coated tube. Depending on the plastic content of the plastics, the production speed and the location of the wrapping device in the drain pipe tube or outside of it, a kind of welding device. At a speed of up to 5 m. It is preferable to use heated sheet metal to weld the fabric, which usually comes in contact with the wrapping devices located outside the drain line production line. Wrapping speeds of up to 1.5 m min -1, preferably hot air welding and gradients greater than 15 m / min, are suitable for ultrasonic welding of tex-edge edges. The advantage of the device according to the invention is that it is necessary to handle the uncoated flexible tube but the wrapping takes place directly from the production line.There is no need for an additional source of movement to ensure the drainage tube is moved through the wrapping device and the wrapped drainage tube. Tubing is continuously wrapped and the production of the wrapped timber tube with non-wrapped material is not required, and the movement of the drainage tube is ensured by a compressive force, and there is no stretching of the wrapped drain tube on the drum. and possible deterioration.

In the accompanying drawing, the device is schematically shown in a side view.

In fact, after the production device of the drainage flexible tubes consisting of the extruder 1, the forming chains 2 and the preforming device 3, there is a wrapping device consisting of the storage cells 6 for receiving the rolls of the filter belt 5. The storage drums 6 are provided with the weight 24 of the filter fabric 5, which is guided over the guide pulleys 7 to the coupling mechanisms 9, which are connected to the auxiliary and securing devices 8. The production device with the wrapping device is connected by a line 4 for direct the pressure force through which the unsheathed drainage pipe 22 passes. Behind the feeding mechanisms 9 there are pressure rollers 10 and guide beds 11 which open into the sleeve 12 where the pulse is located - air nozzles 13 connected to a hot air aggregate 16 or alternatively shaped electrodes 14 connected to an ultrasonic aggregate 17 or shaped heated sheets 15 connected to the heat source 18. Behind the wrapping seat 12 there are pressure pads 19 for homogenizing the weld of the filter fabric. At the end of the line there is a winding drum 20 for winding the wrapped drainage tube 23. If the drainage tube wrapping device is located outside the drain line production line, it must be provided with a separate source of motion 21. Uncoated flexible drainage tube 22 exiting the extruder 1 and passing through the forming chains 2 and the perfecting device 3, the pressure line 4 is guided through the line 4 for direct transfer of the pressure force to the wrapping device, whereby the filter fabric 5 of the guide bed 11 is guided by the guide rollers 7 and the guiding mechanisms 9 and further into the wrapping bead. 12 in which parts are welded by means of heat-air nozzles 13 connected to a heat-air aggregate 16 or by means of shaped electrodes 14 connected to an ultrasonic aggregate 17 or shaped heated plates 15 connected to the heat source 18 of the edge of the filter fabric 5. The resulting weld is homogenized by the pressure Micladines 19. The drainage tube 23 already wrapped is wound onto a winding drum 20.

Claims (1)

253419 7 8 BEFORE MET A device for continuously wrapping flexible pipes consisting of storage drum for storing fabric belt rolls, guide pulleys, emergency locking mechanism, guidance mechanisms, pressure rollers, guide beds, wrapping bed and welding mechanism, characterized in that the storage drums of the invention (6) provided with guide mechanisms (9) are pivotable and displaceable in a horizontal position, one of which is co-located beneath the guide beds (pour, guide) the mechanisms (9J are connected to the emergency locking mechanism (8). 1 sheet of drawings