TH10034A - Processes and machines for the continuous production of sorbents. - Google Patents

Abstract

This invention involves a process. And a machine for the continuous production of the sorbents (30) from strips of fibrous material (40), which have been folded into multiple longitudinal folds. Times in the folding station (A) and which is enclosed in the guide pipe. (86) with the wrap bar (82) with the longitudinal edge connected by a closing device, after which the filament strip (40) is fed into the compression station (C) consisting of a pair of rollers. Compression and smoothing, which are arranged in close order and offset by 90 degrees by means of these compression rollers. The fiber material strip (130) will be rolled in steps. Down to the same size or smaller than the last cross-section of the sorbent (30) for section formation (240), after which the sorbent (30) is clamped with a pinch roller (334,338) in The cutting station (D) and hence a lead formation is obtained at the front end. And thereafter it is fed into the forming device where the front end of the sorbent (30) will be ventilated to facilitate insertion when the sorbent (30) is applied as Female tampons Processes and machines enable high-speed mass production of the sorbents. By making it possible to obtain a stable sorbent Or better resistance to bending While using fewer objects

Claims (8)

1. The process for the continuous production of sorbents, especially lint, which is chosen for feminine hygiene, consists of layering layers of continuous fibrous material. While causing the fibers to move in the forward direction By folding the fibers around their longitudinal axis, then the aforementioned fibers are pressed radially by means of a compression roller and then subdivided into length segments, where This piece of fibrous material is rolled down as a step during the compression phase. Continue one group of roll compression, at least to the final cross-section of the absorbent body, and by this form a block of fine fibers with one outer surface, before subdivision. The part corresponding to the length of the sorbent. 2. Process according to claim No. 1 Here, roll compression will proceed in a continuous sequence. It is a step in the direction of pressing inward at each interval on opposite sides. In the diameter of the rods of the fine fibers, the directions of compression are indented respectively at an angle of 90 turns of the fine fibers from a period of time to a period 3. Process according to claim 1 in Here, the sections of the fine fibers are rolled down to a cross-section smaller than the final cross-section of the sorbent. 4. Process according to claim No. 2 Here, the fibers of the fine fibers are provided. Longitudinal groove during winding 5. Process according to claim No. 4 Here, the section of fine fibers A longitudinal groove that is opposite each other along two pairs of diameters is provided. 6. Process according to claim No. 2 Here, first, the cross-section of the section of the fine fiber group decreases relatively rapidly. And then slowed down, before smoothing and calibrating the outer surface of the strands. 7. Process according to claim 1, which heats the strands during Compressed winding 8. Process according to claim No. 1 Here, the sections of the fine fiber groups are reliably guided. 9. Process according to claim 1. Here, before the compression winding, a piece of fibrous material is folded around its body. Times from one longitudinal edge of the fiber In parallel to the longitudinal direction, before placing the second longitudinal edge around the fabric of the multilayer fiber material in the opposite direction, 1 0. Process according to claim 9. The multilayer folded fibrous material has a circular cross-section 1 1. Process according to claim 10. Here, the fiber material is 15-40 cm wide before folding the fiber. Clause 11 Here, before compression winding, a slit of fibrous material of a circular cross-section is covered with a strip of a liquid-permeable sleeve with a longitudinal edge. Overlap 1 3. Process according to claim 12 Here, the overlapping longitudinal edges of the sheath tabs are joined together. 1 4. Process according to claim 13 hereinafter. The longitudinal edges of the non-shield strip are interconnected. By welding together the thermoplastic components of the sheath strip 1 5. Process according to claim 13. Here, the non-woven fabric strip is a non-woven fabric. Clause 15 is held herein. Parts of the section of the fine fiber group Which corresponds to the length of the absorbed body will be partially cut from each other By winding, clamping the fibers of the fine fibers along the diameter and in the indentation in steps at a 90 degree angle, leaving the fibers for the thin axial connection between the sections 1 7. Process according to claim No. 16 here the front end of the length section Each part was formed in a domed shape during the clamping operation. 1. 8. Process according to claim 16. Here, each sorbent was cut off at the thin-bonded fiber web.1 9. Process According to claim 16, here, a semicircular basin in one end of the sorbent is formed as an aid to the implantation 2 0. In the sorbent applicator consisting of a dispensing device. Of long continuous filament materials, a folding station with a flap and a turntable for longitudinal folding of a piece of fibrous material, and a pair of compression rollers followed by a cutting device. Improvements were made where the folding station was followed by a frame of a group of compression rollers. During the formation of the clamps, the clamps of pairs of compression rollers are graded downward and the compression rollers are reduced. Which rotates at the average circumferential velocity around the axis of rotation 2 1. The machine is fulfilled according to claim 20, making it a nodal style whereby the pair of compression rollers are indented in a continuous sequence at 90 relative angles. 2 2. The machine is completed according to claim 20. Here, the roller frame contains a group of pairs of compression rollers, the size is reduced sequentially faster than the reduction in the group clamps. The second, which follows a pair of compression rollers, and the third group of the pair of rollers have unchanged clamp size for smoothing 2. 3. The machine is completed according to claim 20, herein the circumference of Each compression roller has a circumference of at least one ridge. 2. 4. The unit according to claim 20 makes it unique in that the guide is inserted in the space between the pairs of address rollers. Next, for reliable guidance of the fine fiber segments. 2. 5. Completion of claim 24. Here, the guide forms an opening with a clear elliptical cross-section, the core of the cross-section. The ellipse of each guide is aligned parallel to you. 2 6. The machine completes claim 20. Here, the folding station is followed by a conical guide position. In order to stabilize the circular cross-section of the fabric of multiplied fibrous material 2 7. The finish according to claim 26. Here, the guide pipe is also formed at the bottom, longitudinal slot, This is the location of the conveyor belt for the fibrous material. 2. 8. The finish of claim 27 consists of a casing strip dispensing that allows continuous liquid permeability and a device for organizing the casing band. Encase Between the top of the conveyor belt and the spherical web of fibrous material which is placed on it, in such a way that the casing band is directed upwards in the direction of conveying as a result of the interconnection with Friction between casing and conveyor 2 9. The machine is completed in accordance with claim 26. Here, a pair of driven guide rollers are placed on both sides of the guide tubes for aligning the U-shaped casing tabs. It is applied to the outer surface of the guide pipe in such a way that the casing tab is transportable along the outer surface of the guide tube. 3 0. The apparatus according to claim 26 herein has positioned the guide pipe. At the origin from the first pair of rollers The guide pipe has input slots for each tab of the two side protrusions of the casing tabs, the inlet slots are axially indented. In such a way that the two side protrusions of the casing tab can be pasted through the input slot. Onto a piece of fiber material in a guide pipe 3 1. The machine completes claim 30. Here, the guide pipe, in the area of the import compartment, consists of 3 separate individual segments. 2. The machine completes claim 26. Here there is a device for dispensing the casing strips around. Fibers and closure devices are arranged on a longitudinal opening in the top end of the closure. And overlap the longitudinal edge of the axis of the casing 3 3. The machine is completed in accordance with Clause 20. Here, behind the roller frame, a cutting station with at least two pairs of clamping rollers is 90 degrees offset and a clamp overhang for clamping parts of the parchment. Long, continuous fibers Which corresponds to the length of the sorbent, to leave a thin, axial bond between the segments. Of continuous fibers 3 4. The applicator according to claim 33. Here, the clamping protrusions provide the front end of each sorbent into a domed shape 3. 5. The machine completes claim 34. Here at least one pair of cutting rollers is provided at the ends of the cutting station. To make a separate cutting of the fiber For a thin, axial connection between the adjacent segments of a continuous strand 3. 6. Probe for claim No. 20 Here, a cutting device is followed by a domed construction device for smoothing the pre-formed front end of the sorbent. 7. The machine completes claim 36. Here, a dome-forming device consists of a printing press. To form a basin in the sorbent end opposite to the fore end 3 8. The machine completes claim 20. Here, a control device is provided to maintain the average circumferential velocity of all pair of compression rollers and smoothing rollers arranged in the roller frame.