Carding roller of rotor spinning machine and intelligent composite spinning apparatus

Abstract

The invention provides a carding roller of a rotor spinning machine and an intelligent composite spinning apparatus, and relates to the technical field of rotor spinning equipment. The carding roller is a composite carding roller and comprises a roller body, a bearing and a plurality of racks with different sizes, the roller body and the bearing are in press fit together, the racks form a plurality of carding sections with different carding structures in the axial direction of the roller body, each rack corresponds to one carding section, and the carding sections are used for simultaneous carding of various fiber strips; corresponding to each carding section, a corresponding humidity adjusting assembly is arranged on the roller body, and the humidity adjusting assemblies are connected with the controller and used for adjusting the humidity of carding fibers in the corresponding carding sections according to the control of the controller. The fine and intelligent level of the modern spinning technology is improved, the spinning yarn count range is wide, especially the spinning composite yarn, and meanwhile the method has the advantages of being low in cost, low in energy consumption and easy to transform and upgrade.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rotor spinning equipment, in particular to a carding roller of a rotor spinning machine and an intelligent composite spinning device. BACKGROUND

[0002] Rotor spinning technology belongs to free end spinning, and its spinning principle is that a sliver (such as a cotton sliver) is held by a trumpet through a feeding plate and a feeding roller, the feeding roller rotates to deliver the sliver to a carding zone; the high-speed rotating carding roller in the carding zone opens, strips, combs, and mixes the sliver to make it into single fibers that are separated from each other and arranged in parallel, and then the single fibers enter a fiber conveying channel; under the action of airflow, the fiber flows through the fiber conveying channel into a spinning cup, under the centrifugal force of the high-speed rotating spinning cup, the fiber is further mixed and superimposed in a condensing groove, and then the fiber is drawn out from the spinning cup after being twisted by a twist resistor, and is wound into a yarn by a yarn drawing mechanism. The carding mechanism of the rotor spinning machine has two types: airflow carding and carding roller carding. Among them, the carding roller is widely used in the rotor spinning system and is relatively mature and reliable. The carding roller not only can decompose the fed sliver into single fiber state, but also can remove small dust and impurities, and at the same time, the fiber flow can be transferred to the fiber conveying channel. The carding roller can be generally classified into rack type, needle type, toothed sheet type and integral type, among which the rack type is the most common.

[0003] When the carding roller carding the sliver, the moisture of the sliver will directly affect the carding and transfer effect of the carding roller on the fiber, and ultimately affect the yarn strength, evenness, breakage rate and fiber loss of the rotor spinning. Among them, the fiber with too high moisture has increased toughness and decreased rigidity, so that the fiber is not easy to be grabbed and carded by the needle teeth of the carding roller, and is easy to be wound on the carding roller to form a "winding roller" problem; moreover, the fiber with too high moisture has strong cohesion between fibers, which is not easy to be completely opened into single fibers, and is easy to form fiber bundles, which is also not conducive to removing impurities (impurities adhered to the fiber are not easy to be thrown out), and causes the fiber transfer to be not smooth. The fiber with too low moisture is fragile and easy to break, and under the fierce impact of the carding roller, the number of short fibers and neps increases sharply; moreover, a large amount of static electricity is generated by the friction of dry fibers, which causes the fibers to fly and be adsorbed on the machine channel wall, the yarn hairiness increases, and the excessively fluffy fibers are fluffy in the transfer process, which also causes the fiber flow to be unstable. Therefore, controlling the appropriate moisture of the sliver is the premise of stable production and improving the quality of rotor spinning. At present, the moisture of the sliver is mainly controlled by controlling the temperature and humidity of the rotor spinning workshop - for example, the temperature of the workshop is controlled at 25-30℃, and the relative humidity is controlled at 60%-75%, and the specific values need to be adjusted according to the raw material and yarn count. However, it is found in actual production that if the sliver in the previous process is too dry or too wet, even in the ideal spinning workshop environment, it is difficult to completely compensate for various problems caused by the sliver being too dry or too wet in the carding process, and how to accurately control the moisture of the sliver in the carding process is a technical problem that needs to be solved at present.

[0004] On the other hand, with the increasing demand for yarn quality and variety in the textile industry, the rotor spinning color mixing yarn forming device has been developed. For example, Chinese patent ZL201410190891.1 discloses a rotor spinning color mixing yarn forming method, device and product. On the rotor spinning machine, two or more fiber strips enter the feeding mechanism through the dividing grid and the trumpet. The feeding mechanism contains at least two independently controlled feed rollers, which can control the independent feeding of two fiber strips. Different fiber strips have different colors, different color combinations, or different fiber components. The feeding speed of each fiber strip is controllable and can be independently variable or simultaneously variable at different time periods. By implementing different continuous uniform feeding or segmented variable feeding of the fiber strips, the fiber strips are controlled to be continuously fed at a constant amount or segmented at a variable amount. After being opened and carded by the separating roller, the fed fiber strips are transferred from the separating roller to the delivery pipe under the action of the centrifugal force of the separating roller and the supplementary airflow, and then enter the spinning cup. Different components of single fibers are re-mixed, agglomerated and twisted in the spinning cup to form a rotor spinning color yarn with single or multi-color fiber mixing, or with segmental color effect, uniform linear density or variable linear density.

[0005] Considering that the traditional single separating roller cannot fully complete the stripping, carding, mixing and decomposing draft of multiple cotton strips, the prior art has further improved the above-mentioned rotor spinning color mixing yarn forming scheme. For example, Chinese patent ZL201510516137.7 discloses a rotor spinning method and device with double-cotton-strip asynchronous input and three-stage separation, ZL201510518853.9 discloses a rotor spinning method and device with three-cotton-strip asynchronous input and multi-stage separation, and ZL201510521024.6 discloses a rotor spinning method and device with five-cotton-strip asynchronous input and three-stage separation. The above-mentioned schemes gradually open, card, orient, mix, and decompose the draft of multiple cotton strips through three-stage separating rollers to gradually decompose the multiple cotton strips into bundle fibers and further decompose them into single fibers. However, the separating scheme with multiple-stage separating rollers increases the cost, size and energy consumption of the equipment significantly. The increase in the size of the equipment not only occupies more machine space, but also affects the compactness of the overall structure of the machine. SUMMARY

[0006] The present application aims at overcoming the shortcomings of the prior art, and provides a carding roller of a rotor spinning machine and an intelligent composite spinning device.The carding roller of the rotor spinning machine is provided with a humidity adjusting assembly, so that the local, trace and accurate control of the fiber humidity in the carding process is realized; meanwhile, different sizes of racks are installed in a single carding roller, and the different sizes of racks are used for the carding of different kinds of slivers, so that the carding quality of the simultaneously carded multiple kinds of slivers is improved. Compared with the traditional spinning device carding mechanism, the present application not only improves the fine and intelligent level of the modern spinning process, but also has a larger carding cavity, a larger diameter carding roller and a rotor assembly matched with the larger diameter carding roller, and is more suitable for the multiple feeding of large spooling slivers (such as cotton slivers) and long fibers, and has a wider spinning range, especially for spinning composite yarns; compared with the traditional spinning device, the present application has a longer fiber conveying channel, improves the arrangement uniformity of the fiber conveying, and makes the quality indexes of the yarn strength, evenness and the like higher; meanwhile, compared with the existing multiple feeding and multiple carding scheme, the present application also has the advantages of low cost, low energy consumption and easy upgrading.

[0007] To achieve the above-mentioned objectives, the present application provides the following technical solutions: A carding roller of a rotor spinning machine, the carding roller being a composite carding roller, comprising a roller body, a bearing and multiple racks of different sizes, the roller body and the bearing being press-fitted together, The multiple racks are arranged side by side and coaxially on the roller body, and form multiple carding sections with different carding structures in the axial direction of the roller body, each rack corresponding to a carding section, one carding section being used for the carding of one kind of sliver, and the multiple carding sections being used for the simultaneous carding of multiple kinds of slivers; Corresponding to each carding section, a corresponding humidity adjusting assembly is arranged on the roller body, the humidity adjusting assembly being connected with a controller, and being used for adjusting the humidity of the carded fibers in the corresponding carding section according to the control of the controller.

[0008] Further, the humidity adjusting assembly comprises a drying part, the drying part being connected with the controller, and being used for generating hot air according to the control of the controller; The carding roller comprises a fixedly arranged inner cylinder, an outer cylinder arranged in rotation with the inner cylinder, and a hollow cavity arranged between the outer cylinder and the inner cylinder, the drying part being located in the hollow cavity and being installed on the inner wall of the outer cylinder; the outer surface of the outer cylinder is provided with the multiple racks, each rack comprising multiple rows of teeth, and first air holes being arranged between the rows of teeth; the first air holes are connected with the output end of the drying part, and are used for applying the hot air generated by the drying part to the carded fibers on the racks so as to dry the local fibers corresponding to the first air holes.

[0009] Further, the humidity adjusting assembly further comprises a wetting part, the wetting part being connected with the controller, and being used for spraying water mist according to the control of the controller; At this time, the tooth rows are also provided with second air holes between the tooth rows; the second air holes are connected to the output end of the wetting part, and are used for spraying the water mist sprayed by the wetting part on the separated fibers on the rack to wet the local fibers corresponding to the second air holes.

[0010] Further, the first air holes and the second air holes are arranged in an alternating manner on the outer surface of the outer cylinder to form an alternating first air hole array and an alternating second air hole array.

[0011] Further, a humidity detection channel is arranged upstream of the fiber strip input port of the separating roller, the humidity detection channel comprises a humidity sensor arranged corresponding to the fiber strip transmission path, when the fiber strip passes through the humidity detection channel, the humidity data of the fiber strip is detected by the humidity sensor, and the detected humidity data is sent to the controller. The controller is configured to: determine whether the humidity of the current fiber strip is within the preset humidity standard range according to the received humidity data, if the determination result is that the humidity is not within the humidity standard range, start the humidity adjusting assembly on the separating roller to enter the working state, otherwise, keep the humidity adjusting assembly in the closed state.

[0012] Further, the surface of the roller body is coated with an insulating layer, for each rack, a pair of teeth or multiple pairs of teeth on the rack are set as an electrode pair, and the surfaces of the other teeth are coated with an insulating layer to form insulating teeth, when the fiber strip is separated on the rack, an electric current signal is applied to the fiber through the electrode pair, and a voltage signal is collected through the electrode pair and sent to the associated controller. The controller is configured to: calculate the resistance as the instantaneous resistance value of the separated fiber by using Ohm's law according to the voltage signal and the current signal; and obtain the resistance-humidity calibration relationship of the corresponding type of fiber from the system according to the type of the current separated fiber strip, and then obtain the corresponding humidity based on the instantaneous resistance value as the instantaneous humidity value of the current separated fiber, and determine whether the instantaneous humidity value is within the preset humidity standard range, if the determination result is that the instantaneous humidity value is not within the humidity standard range, start the humidity adjusting assembly on the separating roller to enter the working state, otherwise, keep the humidity adjusting assembly in the closed state.

[0013] Further, the rack is a rack ring in a ring structure, the rack ring is embedded on the roller body, and a rack ring with a preset width is wrapped around the surface of the roller body to form a continuous carding surface, and different rack rings form carding surfaces of different carding sections on the surface of the roller body. Each rack ring is detachably connected to the roller body, so that the rack ring can be separated from the roller body as a whole to replace the rack ring.

[0014] The application also provides an intelligent composite spinning device of a rotor spinning machine, which comprises a separating cavity assembly, a separating roller, a plurality of feed rollers and a plurality of feed collectors. The split comb cavity assembly is provided with a split comb cavity and a rotating cup, and the split comb roller is installed in the split comb cavity, wherein the split comb roller is the aforementioned composite split comb roller; The plurality of fiber strips are fed into the composite split comb roller by the multi-feeding collector and multi-feeding roller mechanism respectively, are opened and carded to form a fiber flow, and the fiber flow enters the rotating cup in the split comb cavity assembly through the fiber conveying channel to be aggregated into a yarn; The feeding speed of each of the plurality of fiber strips is controlled by adjusting the multi-feeding mechanism.

[0015] Further, the multi-feeding collector is provided with a plurality of feeding ports, and the multi-feeding roller mechanism includes a set of coaxial stacked combination rollers, the plurality of feeding rollers of the stacked combination rollers are stacked up and down and rotate around the same shaft, and each feeding roller is provided with an independent transmission mechanism to realize independent transmission; After the plurality of fiber strips are input through different feeding ports of the multi-feeding collector, each fiber strip is fed through the corresponding feeding roller, and each feeding roller independently controls the feeding parameter of one fiber strip; The multi-feeding roller mechanism includes a composite motor, a plurality of feeding rollers, a plurality of shafts and a plurality of bearings, and the feeding rollers are one-to-one corresponding to the shafts; the composite motor is provided with a plurality of independent output shafts capable of outputting different rotating speeds, and the output shafts of the composite motor are respectively connected to the shafts; The feeding port includes an inlet section, a transition section and a horn mouth section connected in sequence, the output end of the horn mouth section is provided corresponding to the multi-feeding roller, the inlet section is provided perpendicularly to the horn mouth section, the transition section is used to connect the horn mouth section and the inlet section, and the fiber strip is input to the feeding roller through the inlet section, the transition section and the horn mouth section in sequence.

[0016] Further, the splines are spirally wrapped around the roller body surface along the circumferential direction of the roller body to form a spline ring, the tail comb teeth and the head comb teeth of adjacent splines are connected in a head-to-tail manner to form a continuous carding structure on the roller body surface, the lower parts of the comb teeth on the splines are connected together, and a limiting groove is arranged on the side of the lower part of the comb teeth; Further, the splines are spirally wrapped around the roller body surface along the circumferential direction of the roller body to form a spline ring, the tail comb teeth and the head comb teeth of adjacent splines are connected in a head-to-tail manner to form a continuous carding structure on the roller body surface, the lower parts of the comb teeth on the splines are connected together, and a limiting groove is arranged on the side of the lower part of the comb teeth; The spline cleaning mechanism includes a main housing, and the main housing is provided with a spline accommodating part, a walking part, a hot melting part and a suction part, and the suction part is connected to a dirt collecting cavity; The walking part is located at the lower part of the spline channel and includes a caster wheel, a limiting block and a caster wheel driving mechanism installed at the lower part of the main housing, the limiting block is used to match the limiting groove on the lower part of the comb teeth to limit the disengagement of the main housing from the comb teeth in the radial direction of the split comb roller, and the caster wheel driving mechanism is used to drive the caster wheel to move the main housing along the surface of the split comb roller along the circumferential direction of the roller body; The hot melting part comprises an air outlet channel arranged on the main shell and connected with the hot air structure, and an air outlet arranged corresponding to the lower part of the tooth channel, wherein the hot air generated by the hot air structure is transmitted to the air outlet through the air outlet channel and then blown to the lower part of the tooth channel to act on the periphery of the comb teeth, so that the periphery of the comb teeth is heated to melt the residual oil agent condensed on the periphery of the comb teeth; The suction part is arranged on the upper part of the inner cavity of the main shell and is used for sucking the inner cavity of the main shell, so that the melted residual oil agent is sucked into the dirt collecting cavity through the tooth channel and the inner cavity of the main shell.

[0017] Compared with the prior art, the present application has the following advantages and positive effects: the humidity adjusting assembly is arranged on the separating roller of the rotor spinning machine, local, trace and accurate control of the fiber humidity in the separating process is realized, different sizes of the toothed bars are installed in a single separating roller, and the different sizes of the toothed bars are used for separating different kinds of fiber slivers, so that the separating quality of the simultaneously separated multiple fiber slivers is improved. Compared with the traditional spinning device separating mechanism, the present application not only improves the fine and intelligent level of the modern spinning process, but also has a larger separating cavity, a larger diameter separating roller and a rotor assembly matched with the separating cavity, is more suitable for multiple feeding of large spooling fiber slivers (such as cotton slivers) and long fiber entry, has a wider spinning yarn count range, especially for spinning composite yarns, has a longer fiber conveying channel, improves the arrangement neatness of the fiber conveying, and makes the quality indexes of the yarn strength, evenness and the like higher, and has the advantages of low cost, low energy consumption and easy upgrading compared with the existing multiple feeding and multiple separating scheme. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The result schematic view of the composite separating roller provided for the embodiment of the present application.

[0019] Figure 2 The roller body structure schematic view provided for the embodiment of the present application, in which the first air hole and the second air hole are arranged between the toothed bars.

[0020] Figure 3 The arrangement schematic view of the humidity adjusting assembly provided for the embodiment of the present application.

[0021] Figure 4 The control schematic view of the humidity adjusting assembly provided for the embodiment of the present application.

[0022] Figure 5 The structure schematic view of the intelligent composite spinning device of the rotor spinning machine provided for the embodiment of the present application.

[0023] Figure 6 The structure schematic view of the multiple feeding roller mechanism provided for the embodiment of the present application.

[0024] Figure 7 The structure schematic diagram of the rack cleaning mechanism provided by the embodiment of the present application is installed on the comb teeth.

[0025] Explanation of reference signs: Spinning device 10; Composite carding roller 100, roller body 110, outer surface 111, outer cylinder 1111, inner cylinder 1112, hollow cavity 1113, bearing 120, first rack 130, second rack 140, comb teeth 131 / 141, limiting groove 1310 / 1410, rack connection 134, first air hole 151, second air hole 152, first wire 1511, dry part control module 1512, second wire 1521, wet part control module 1522; Multi-feed roller mechanism 200, first shaft 210, second shaft 220, first feed roller 230, second feed roller 240, second bearing 250, first bearing 260, composite motor 270; Multi-feed collector 300; Rack cleaning mechanism 400, main shell 410, main shell inner cavity 411, tooth containing part 412, walking part 413, caster wheel 4131, limiting block 4132, hot melting part 414, main shell air outlet passage 4141, air outlet 4142, suction part 415, hot air structure 420, air outlet main passage 421, dirt collecting cavity 430, suction passage 431. DETAILED DESCRIPTION

[0026] The following further describes the carding roller of the rotor spinning machine and the intelligent composite spinning device according to the present application in combination with the accompanying drawings and specific embodiments. It should be noted that the technical features or combinations of technical features described in the following embodiments should not be considered in isolation, and they can be combined with each other to achieve better technical effects. In the drawings of the following embodiments, the same reference signs appearing in each drawing represent the same features or components and can be applied to different embodiments. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0027] It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to the present specification are merely used to cooperate with the content disclosed in the present specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions for implementing the present application. Any modification of the structure, change of the proportion relationship or adjustment of the size, which does not affect the effect and purpose that can be achieved by the present application, shall fall within the scope of the technical content disclosed by the present application. The scope of the preferred embodiments of the present application includes additional implementations, in which the functions can be performed in a substantially simultaneous manner or in a reverse order according to the functions involved, without being performed in the order as described or discussed, which should be understood by those skilled in the art to which the embodiments of the present application belong.

[0028] In the description of the embodiments of the present application, "and / or" is used to describe the association relationship of the associated objects, which means that there can be three relationships, such as "A and / or B", which means that A and B exist alone, B exists alone, and A and B exist simultaneously. In the description of the embodiments of the present application, "a plurality of" means two or more. Embodiments

[0029] The rotor spinning machine generally includes a carding chamber provided with a carding roller, the carding chamber is communicated with a sliver feeding channel and a fiber conveying channel, and a supplementary air channel and a carding chamber impurity removal area are arranged below the carding chamber. During spinning, the sliver is sent into the carding chamber through the sliver feeding channel for carding, the carded fibers enter the inside of the rotor through the fiber conveying channel, and then come out of the condensing groove to be made into yarn after being drawn into the false twist disc.

[0030] The present application first improves the existing carding roller. Referring to Figure 1 The composite carding roller 100 of the rotor spinning machine provided by the present application includes a roller body 110, a bearing 120 and a plurality of racks with different sizes, and the roller body and the bearing are press-fitted together.

[0031] The plurality of racks are arranged side by side and coaxially on the roller body, and form a plurality of carding sections with different carding structures in the axial direction of the roller body. Each rack corresponds to a carding section, and one carding section is used for carding one kind of sliver. The plurality of carding sections are used for simultaneously carding a plurality of kinds of slivers. Corresponding to each carding section, a corresponding humidity adjusting assembly is arranged on the roller body, and the humidity adjusting assembly is connected with a controller and used for adjusting the humidity of the carded fibers in the corresponding carding section according to the control of the controller.

[0032] As an example of a typical mode, Figure 1 The case of arranging two racks is shown in the figure, including a first rack 130 and a second rack 140.

[0033] In this embodiment, the first rack 130 and the second rack 140 are respectively mounted on the roller body 110 by an embedded method. The first rack 130 and the second rack 140 are respectively used to comb the first fiber strip and the second fiber strip of different raw materials entering the same combing chamber. The first fiber strip and the second fiber strip entering the combing chamber are combed simultaneously by the first rack 130 and the second rack 140 respectively.

[0034] Preferably, the rack is a ring-shaped rack ring with a preset width. The rack ring covers the surface of the roller body to form a continuous combing surface, and different rack rings form different combing segments on the roller body surface. See also Figure 1 and Figure 2 As shown, the first toothed rack 130 and the second toothed rack 140 form two combing sections on the roller surface, corresponding to two combing surfaces respectively. The combing structures of different combing surfaces are different, which can be applied to the characteristics of fiber slivers made of different raw materials. The first toothed rack 130 forms a first combing section on the roller, and the second toothed rack 140 forms a second combing section on the roller. The two combing sections can be used for combing two types of fiber slivers simultaneously. After the fiber slivers made of the first raw material and the second raw material are fed into the same combing chamber, they are opened and combed by the first toothed ring and the second toothed ring on the combing roller in the combing chamber, and then mixed to form a multi-raw material fiber stream. The multi-raw material fiber stream enters the coagulation groove of the rotor through the fiber conveying channel. After being twisted by the high-speed rotation of the rotor, it is drawn out by the yarn drawing mechanism and wound into yarn.

[0035] More preferably, each rack ring is installed with a detachable connection to the roller body, allowing the rack ring to be separated from the roller body as a whole, thus facilitating the replacement of the rack ring as needed. In this way, during spinning, a rack structure matching the raw material can be installed, thereby achieving better combing of the fiber sliver using that raw material.

[0036] Preferably, the serrations of the first and second rack rings are arranged in a diagonal pattern, see [reference]. Figure 1 As shown, the working angle, longitudinal tooth pitch, tooth density, tooth depth, and / or tooth profile of the saw teeth of different rack rings vary, resulting in different saw tooth dimensions.

[0037] In this embodiment, corresponding to the first combing section and the second combing section, a corresponding humidity adjustment component is provided on the roller body, including a first humidity adjustment component and a second humidity adjustment component. The two humidity adjustment components are respectively connected to the controller and are used to adjust the humidity of the combed fibers in the first combing section and the second combing section according to the control of the controller.

[0038] In one specific embodiment of the present embodiment, the humidity adjusting assembly can include a drying part and / or a humidifying part, the drying part being connected to the controller and used to generate hot air under the control of the controller, and the humidifying part being connected to the controller and used to spray water mist under the control of the controller. In this way, the humidity adjusting assembly can realize drying or humidifying treatment of the separated fibers, and the separated fibers can be subjected to trace and accurate drying or humidifying treatment, so that the separated fibers can be in the best humidity state as much as possible.

[0039] Preferably, the drying part and the humidifying part are arranged on the roller body of the humidity adjusting assembly at the same time, and the first air hole 151 and the second air hole 152 are arranged on the roller body correspondingly to the drying part and the humidifying part, and are used as output ports of the drying part and the humidifying part respectively.

[0040] Preferably, the drying part is a hot air device capable of generating hot air, and the humidifying part preferably includes an ultrasonic atomizer and a nozzle arranged correspondingly to the second air hole and used to spray fine and trace water mist (such as nanoscale water mist) to the fibers.

[0041] Specifically, refer to Figure 3 As shown in the figure, the roller body 110 of the composite separating roller 100 can include an inner cylinder 1112 arranged fixedly, an outer cylinder 1111 arranged rotatably coaxially with the inner cylinder 1112, and a hollow cavity 1113 arranged between the outer cylinder 1111 and the inner cylinder 1112, and the drying part and the humidifying part are located in the hollow cavity 1113 and are mounted on the inner wall of the outer cylinder 1111. The outer surface 111 of the outer cylinder 1112 (or the outer surface of the roller body 110) is mounted with the first rack 130 and the second rack 140, and each rack can include a plurality of rows of teeth, and the rows of teeth of the first rack 130 and the second rack 140 are arranged continuously, and the two racks are connected through a rack connection 134 to form a continuous carding structure.

[0042] The first air hole 151 and the second air hole 152 are arranged between the rows of teeth. The first air hole 151 is connected to the output end of the drying part, and is used to apply the hot air generated by the drying part to the separated fibers on the rack to dry the local fibers corresponding to the first air hole. The second air hole 152 is connected to the output end of the humidifying part, and is used to apply the water mist sprayed by the humidifying part to the separated fibers on the rack to humidify the local fibers corresponding to the second air hole. The controller can include a drying part control module 1512 and a humidifying part control module 1522, the drying part control module 1512 can be connected to the drying part in the hollow cavity 1113 through a first lead wire 1511, the humidifying part control module 1522 can be connected to the humidifying part in the hollow cavity 1113 through a second lead wire 1521, and the drying part and the humidifying part can be controlled to work or stop working through the drying part control module 1512 and the humidifying part control module 1522.

[0043] Preferably, the drying section control module 1512 and the humidification section control module 1522 control the drying section and the humidification section to operate according to a preset working mode, respectively. As an example and not a limitation, for example, after the drying section is started, the drying section outputs hot air at a predetermined temperature and a predetermined flow rate once or multiple times; or, after the humidification section is started, the humidification section sprays water mist at a predetermined flow rate once or multiple times.

[0044] It should be noted that those skilled in the art should understand that both the first rack 130 and the second rack 140 protrude relative to the outer surface 111 of the roller body. Figure 3 To fully display the first and second air holes arranged between the racks, the specific structures of the first rack 130 and the second rack 140 are simplified, allowing for a better understanding. Figure 3 The first rack 130 and the second rack 140 can be combined Figure 2 Understanding the specific structure of the first rack 130 and the second rack 140.

[0045] In a preferred embodiment, the first vent 151 and the second vent 152 are arranged alternately on the outer surface 111 of the outer cylinder 1111, see [reference]. Figure 2 and Figure 3 As shown, this forms an alternating array of first and second pores.

[0046] To detect which fibers require humidity regulation, a humidity detection device is also installed to measure the humidity value of fiber strips or combed fibers.

[0047] Specifically, in one embodiment of this invention, a humidity detection channel can be provided upstream of the fiber sliver inlet of the combing roller. This humidity detection channel includes a humidity sensor positioned along the fiber sliver's transmission path—such as a conventional resistive humidity sensor or a capacitive humidity sensor. When the fiber sliver passes through the humidity detection channel, the humidity sensor detects the humidity data of the fiber sliver and sends the detected humidity data to the controller. That is, the humidity detection of the fiber sliver is completed before it enters the combing chamber, and the humidity adjustment component on the combing roller is controlled based on the detection result.

[0048] At this time, the controller is configured to: determine whether the current humidity of the fiber strip is within the preset humidity standard range based on the received humidity data; if it is determined that it is not within the humidity standard range, activate the humidity adjustment component on the combing roller—such as the drying section or the humidifying section—to enter the working state; otherwise, keep the humidity adjustment component in the off state.

[0049] In another embodiment of the present embodiment, the moisture of the separated fibers can also be detected when the fiber strip is being separated in the separating chamber. In this case, the surface of the roller body is coated with an insulating layer, and for each rack, a pair of teeth or multiple pairs of teeth on the rack are set as an electrode pair, and the surfaces of the other teeth are coated with an insulating layer to form insulating teeth. When the fiber strip is separated on the rack, an electric current signal is applied to the fiber through the electrode pair, and a voltage signal is collected through the electrode pair and sent to the associated controller.

[0050] The controller is configured to: calculate the resistance as the instantaneous resistance value of the separated fibers according to the voltage signal and the current signal by using Ohm's law; and according to the type of the current separated fiber strip (the type of the current separated fiber strip can be pre-selected by the user through the user interaction interface of the system), obtain the resistance-moisture calibration relationship of the corresponding type of fiber from the system, such as a resistance-moisture calibration curve or a resistance-moisture calibration lookup table, and then obtain the corresponding moisture as the instantaneous moisture value of the current separated fiber based on the instantaneous resistance value, determine whether the instantaneous moisture value is within the preset moisture standard range, and if the instantaneous moisture value is not within the moisture standard range, start the moisture adjusting assembly on the separating roller to enter the working state, otherwise, keep the moisture adjusting assembly in the closed state. In this embodiment, the resistance-moisture calibration relationship (or resistance-moisture mapping relationship) of various fiber raw materials needs to be pre-stored. Different fiber raw materials (such as cotton, wool, and polyester) have different inherent resistances and moisture absorption characteristics, and therefore each fiber has its own resistance-moisture calibration curve.

[0051] More preferably, the moisture adjusting assembly can have multiple working modes in the working state, and the multiple working modes can correspond to multiple moisture adjustment levels. In different working modes, the moisture adjustment levels are different, and the working time and / or intensity (intensity is related to air volume or mist volume) of the moisture adjusting assembly are also different.

[0052] As an example of a typical mode, for example, three working modes can be set: first mode, second mode, and third mode. The three working modes correspond to three moisture adjustment levels, which are weak moisture adjustment level, ordinary moisture adjustment level, and strong moisture adjustment level in order, and the working time and / or intensity of the moisture adjusting assembly corresponding to the three levels increase in order. In the present embodiment, the moisture adjustment level is related to the difference between the instantaneous resistance value and the median of the moisture standard range. According to the size of the difference between the instantaneous resistance value and the median of the moisture standard range, the larger the difference, the higher the moisture adjustment level, the higher the gear of the working mode, and the larger the working time / intensity of the moisture adjusting assembly.

[0053] Preferably, the humidity detection mechanism can automatically and periodically start the humidity detection of the sliver or the separated fibers according to a preset time period, after the detection is completed, the controller controls the humidity adjusting assembly to perform an action according to the detection result, and after the action is completed, the humidity adjusting assembly enters a closed state and waits for the next humidity detection.

[0054] In the embodiment, the hot air output of each first air hole can be precisely controlled by the drying part control module, and the water mist output of each second air hole can be precisely controlled by the wetting part control module. Specifically, the first air holes and the second air holes on the separating roller can be numbered, as shown in Figure 4 For example, the numbers of the first air holes are sequentially configured as 1, 2, …, n, and the n represents the total number of the first air holes; the hot air volume is divided into k levels (k is an integer greater than or equal to 2), which are hot air volume Q1, hot air volume Q2, …, hot air volume Qk; according to the humidity value of the separated fibers, the drying parts corresponding to the first air holes numbered 1, 6, 11, 16, and 21 are controlled to work in the aforementioned first gear mode, and all output hot air with the hot air volume Q1 to dry the fibers. For example, the numbers of the second air holes are sequentially configured as 1, 2, …, m, and the m represents the total number of the second air holes; the water mist volume is divided into s levels (s is an integer greater than or equal to 2), which are hot air volume W1, hot air volume W2, …, hot air volume Ws; according to the humidity value of the separated fibers, the wetting parts corresponding to the second air holes numbered 1, 6, 11, 16, and 21 are controlled to work in the aforementioned first gear mode, and all output water mist with the water mist volume W1 to humidify the fibers.

[0055] The above-mentioned scheme provided by the present application realizes local, trace, and accurate control of the humidity of the separated fibers in the separating process; meanwhile, different sizes of the racks are installed in a single separating roller, and the different sizes of the racks are used for separating different kinds of slivers, thereby improving the separating quality of the simultaneously separated multiple kinds of slivers. The present application not only improves the fine and intelligent level of the modern spinning process, but also has a larger separating cavity, a larger diameter separating roller, and a rotor assembly matched therewith, and is more suitable for multiple feeding of large-spindle slivers and long fibers, has a wider spinning yarn count range, and is especially suitable for spinning composite yarns.

[0056] Another embodiment of the present application further provides an intelligent composite spinning device of a rotor spinning machine.

[0057] Referring to Figure 5 As shown in the figure, the intelligent composite spinning device 10 can include a separating cavity assembly, a composite separating roller 100, a multiple feeding roller mechanism 200, and a multiple feeding collector 300.

[0058] The split comb cavity assembly is provided with a split comb cavity and a rotating cup, and the composite split comb roller 100 is installed in the split comb cavity. The specific features of the composite split comb roller 100 are described in the foregoing embodiments, which will not be repeated here.

[0059] The plurality of fiber strips are fed into the composite split comb roller 100 through the multi-feeding collector 300 and the multi-feeding roller mechanism 200, and are opened and carded to form a fiber flow, which enters the rotating cup in the split comb cavity assembly through the fiber conveying channel and is aggregated into a yarn.

[0060] The feeding speed of each of the plurality of fiber strips is controlled by adjusting the multi-feeding mechanism 200.

[0061] In the embodiment, the multi-feeding collector 300 is provided with a plurality of feeding ports, which are stacked vertically, and the output ports of the plurality of feeding ports are in the same straight line position, as shown in Figure 5 Preferably, each feeding port in the embodiment can include an inlet section, a transition section and a horn section connected in sequence, the output end of the horn section corresponds to the multi-feeding roller, the inlet section is vertically arranged with the horn section, and the transition section is used to connect the horn section and the inlet section. The fiber strip is input to the feeding roller through the inlet section, the transition section and the horn section in sequence.

[0062] The multi-feeding roller mechanism includes a set of coaxial stacked combination rollers, and the plurality of feeding rollers of the stacked combination rollers are stacked vertically and rotate around the same axis. Independent transmission mechanisms are configured for each feeding roller to realize independent transmission. After the plurality of fiber strips are input through different feeding ports of the multi-feeding collector, they are fed through the corresponding feeding rollers, and each feeding roller independently controls the feeding parameters of one fiber strip.

[0063] Specifically, the multi-feeding roller mechanism 300 can include a composite motor, a plurality of feeding rollers, a plurality of shafts and a plurality of bearings, and the feeding rollers are one-to-one corresponding to the shafts. The composite motor is provided with a plurality of independent output shafts capable of outputting different rotating speeds, and the output shafts of the composite motor are connected to the shafts.

[0064] Taking a double-feeding roller mechanism as an example, as shown in Figure 6 The double-feeding roller mechanism includes a set of coaxial stacked combination of two feeding rollers, and the multi-feeding collector is provided with two feeding ports to form a double-feeding collector. The composite motor has two independent output shafts, and the output shafts are connected to the first shaft 210 and the second shaft 220, respectively. The first shaft 210 is provided with the first bearing 260, the second bearing 250 and the first feeding roller 230, and the second shaft 220 is provided with the second roller 240. In this way, two independently driven feeding rollers can be realized by one composite motor, and the two feeding rollers can simultaneously realize different rotating speeds to meet the requirements of various fancy yarns.

[0065] The double feeding collector can include a first feeding port and a second feeding port, the trumpet section of the first feeding port and the trumpet section of the second feeding port are arranged in a vertical stack after being separated, the outlets of the upper and lower trumpet sections correspond to the two feeding rollers in the vertical stack respectively, that is, the outlet of the trumpet section of the first feeding port corresponds to the first feeding roller, and the outlet of the trumpet section of the second feeding port corresponds to the second feeding roller. The inlet section of the first feeding port and the inlet section of the second feeding port are arranged in parallel in the vertical direction and have a preset interval.

[0066] Preferably, the inlet section of the first feeding port adopts a C-shaped tube or a U-shaped tube with an open side wall. The inlet section of the second feeding port adopts a circular tube with a complete bottom but an open side wall in the middle and upper parts, and one side wall of the circular tube extends upward to connect with the side wall of the transition section to form an integral back plate to constrain the fiber strip.

[0067] In the embodiment, the spinning device can further include a foreign matter removing mechanism, a condensation and twisting mechanism, a winding mechanism, etc. The specific structures and working modes of the foreign matter removing mechanism, the condensation and twisting mechanism, and the winding mechanism belong to the prior art, and will not be described here.

[0068] As a preferred typical mode, the rack in the embodiment spirally surrounds the roller body surface in the circumferential direction of the roller body to form a rack ring, the tail comb teeth and the head comb teeth of adjacent racks are connected in a head-to-tail manner to form a continuous carding structure on the roller body surface; the lower parts of the comb teeth on the rack are connected together, and a limiting groove is arranged on the side of the lower part of the comb teeth, as shown in Figure 7 .

[0069] Considering that some fiber varieties contain oil agents, such as polyester fibers, the use of the carding roller for a period of time will cause the oil agent to remain on the surface of the comb teeth (or teeth), affecting the carding quality. Therefore, the spinning device of the embodiment can further include a rack cleaning mechanism for cleaning the rack of the carding roller.

[0070] Specifically, as shown in Figure 7 , the rack cleaning mechanism 400 can include a main housing 410 made of heat-resistant material, and a main housing inner cavity 411 formed in the main housing 410.

[0071] The main housing 410 is provided with a tooth containing portion 412, a walking portion 413, a hot melting portion 414, and a suction portion 415, and the suction portion 415 can be connected to a dirt collecting cavity 430 through a suction channel 431.

[0072] The tooth containing portion 412 can specifically include a tooth channel for the insertion of the comb teeth on the rack, and the tooth channel is in communication with the main housing inner cavity.

[0073] The walking part 413 is located at the lower part of the tooth channel, including a caster 4131 installed at the lower part of the main shell, a limiting block 4132, and a caster driving mechanism (not shown in the figure). The limiting block 4132 is used to match with the limiting groove 1310 (located at the lower part of the comb teeth of the first rack) and the limiting groove 1410 (located at the lower part of the comb teeth of the second rack) at the lower part of the comb teeth 131 (located at the first rack 130) and the comb teeth 141 (located at the second rack 140). For example, an arc-shaped buckle structure can be formed, which can limit the main shell 410 from disengaging from the comb teeth in the radial direction of the carding roller, but does not limit the main shell 410 from moving along the roller body circumference on the rack. The caster driving mechanism is used to drive the caster 4131 to move, and the main shell 410 as a whole moves along the roller surface in the roller body circumference by driving the caster to rotate. See Figure 7

[0074] The hot melting part 414 can include a main shell air outlet passage 4141 and an air outlet 4142 provided on the main shell 410. The main shell air outlet passage 4141 is connected to the hot air structure 420, and the air outlet 4142 is provided corresponding to the lower part of the tooth channel. The hot air generated by the hot air structure 420 is transmitted to the air outlet 4142 through the main shell air outlet passage 4141 and then blown to the lower part of the tooth channel to act on the periphery of the comb teeth, so as to heat the periphery of the comb teeth to melt the residual oil agent condensed on the periphery of the comb teeth. The temperature of the hot air generated by the hot air structure 420 can be configured according to the melting point of the residual oil agent, as long as it can meet the requirement of melting the residual oil agent, which is not limited here.

[0075] The suction part 415 is provided at the upper part of the main shell inner cavity 411, and is used to apply a suction force to the main shell inner cavity 414, so as to suck the melted residual oil agent into the dirt collecting cavity 430 through the tooth channel and the main shell inner cavity.

[0076] Other features refer to the foregoing embodiments, which are not described here.

[0077] In the above description, within the target protection scope of the present disclosure, each component can be selectively and operatively combined in any number. In addition, the terms such as "include", "comprise", and "have" should be interpreted as inclusive or open, rather than exclusive or closed, unless they are explicitly defined as the opposite meaning. All technical, scientific or other terms are in accordance with the meaning understood by those skilled in the art, unless they are defined as the opposite meaning. The common terms found in the dictionary should not be interpreted too ideally or too unrealistically in the context of the relevant technical documents, unless the present disclosure explicitly limits it in this way.

[0078] ​Although example aspects of the present disclosure have been described with respect to the description above, it will be recognized by one of ordinary skill in the art that the description is merely illustrative of the preferred embodiments of the application and is not intended to limit the scope of the application, which is defined by the appended claims. The scope of the preferred embodiments of the application includes additional implementations that can not appear to be described or claimed in the description above. Any alterations, modifications, additions, or omissions made by one of ordinary skill in the art based on the disclosure above are intended to fall within the scope of the claims.

Claims

1. A combing roller of a rotor spinning machine, characterized in that: The split roller is a composite split roller, comprising a roller body, a bearing and a plurality of racks with different sizes, the roller body is press-fitted with the bearing, The plurality of racks are arranged side by side and coaxially on the roller body, forming a plurality of carding sections with different carding structures in the axial direction of the roller body, each rack corresponds to a carding section, one carding section is used for the splitting of one kind of sliver, and a plurality of carding sections are used for the simultaneous splitting of a plurality of kinds of slivers; Corresponding to each carding section, a corresponding humidity adjusting assembly is arranged on the roller body, and the humidity adjusting assembly is connected with the controller and used for adjusting the humidity of the split fibers in the corresponding carding section according to the control of the controller.

2. The carding roller of claim 1, wherein: The humidity adjusting assembly comprises a drying part connected with the controller and used for generating hot air according to the control of the controller; The split roller comprises a fixedly arranged inner cylinder, an outer cylinder arranged in rotation with the inner cylinder, and a hollow cavity arranged between the outer cylinder and the inner cylinder, the drying part is located in the hollow cavity and is mounted on the inner wall of the outer cylinder, the outer surface of the outer cylinder is provided with the plurality of racks, each rack comprises a plurality of rows of teeth, and a first air hole is arranged between the rows of teeth; the first air hole is connected with the output end of the drying part and is used for applying the hot air generated by the drying part to the split fibers on the rack so as to dry the local fibers corresponding to the first air hole.

3. The carding roller of claim 2, wherein: The humidity adjusting assembly further comprises a wetting part connected with the controller and used for spraying water mist according to the control of the controller; At this time, a second air hole is further arranged between the rows of teeth; the second air hole is connected with the output end of the wetting part and is used for applying the water mist sprayed by the wetting part to the split fibers on the rack so as to wet the local fibers corresponding to the second air hole.

4. The carding roller of claim 3, wherein: The first air holes and the second air holes are arranged in a staggered manner on the outer surface of the outer cylinder, forming a first air hole array and a second air hole array in a staggered manner.

5. The carding roller according to any one of claims 1-4, characterized in that: A humidity detection channel is arranged upstream of the sliver input port of the split roller, the humidity detection channel comprises a humidity sensor arranged corresponding to the sliver transmission path, when the sliver passes through the humidity detection channel, the humidity data of the sliver is detected by the humidity sensor, and the detected humidity data is sent to the controller; The controller is configured to determine whether the humidity of the current sliver is within a preset humidity standard range according to the received humidity data, if the determination result is that the humidity is not within the humidity standard range, the humidity adjusting assembly on the split roller is started to enter a working state, otherwise, the humidity adjusting assembly is kept in an off state.

6. The carding roller of any one of claims 1-4, wherein: The surface of the roller body is coated with an insulating layer, for each rack, a pair of teeth or a plurality of pairs of teeth on the rack are set as an electrode pair, the surfaces of the other teeth are coated with an insulating layer to form insulating teeth, when the sliver is split on the rack, an electric current signal is applied to the fiber through the electrode pair, and a voltage signal is collected through the electrode pair and sent to the associated controller. The controller is configured to: calculate the resistance as the instantaneous resistance value of the separated fiber according to the voltage signal and the current signal by using Ohm's law; and obtain the corresponding humidity as the instantaneous humidity value of the current separated fiber according to the instantaneous resistance value and the resistance-humidity calibration relationship of the corresponding fiber of the current separated fiber strip, judge whether the instantaneous humidity value is within the preset humidity standard range, and start the humidity adjusting assembly on the separating roller into the working state when the instantaneous humidity value is not within the humidity standard range, otherwise, keep the humidity adjusting assembly in the closed state.

7. The carding roller of any one of claims 1-4, wherein: The rack is a rack ring with a ring structure, the rack ring is embedded on the roller body, and the rack ring with a preset width is wrapped on the surface of the roller body to form a continuous carding surface, and different rack rings form carding surfaces of different carding sections on the surface of the roller body. Each rack ring is detachably connected with the roller body, so that the rack ring can be separated from the roller body as a whole to replace the rack ring.

8. An intelligent composite spinner of a rotor spinning machine, characterized by: The device comprises a separating cavity assembly, a separating roller, a multi-feeding roller mechanism and a multi-feeding collector. The separating cavity assembly is provided with a separating cavity and a rotating cup, and the separating roller is installed in the separating cavity. The multi-feeding collector is provided with a plurality of feeding ports, and the multi-feeding roller mechanism comprises a set of coaxial stacked combination rollers. The multi-feeding collector is provided with a plurality of feeding ports, and the multi-feeding roller mechanism comprises a set of coaxial stacked combination rollers.

9. The intelligent composite spinner as claimed in claim 8, wherein: The multi-feeding collector is provided with a plurality of feeding ports, and the multi-feeding roller mechanism comprises a set of coaxial stacked combination rollers. The multi-feeding collector is provided with a plurality of feeding ports, and the multi-feeding roller mechanism comprises a set of coaxial stacked combination rollers. The multi-feeding collector is provided with a plurality of feeding ports, and the multi-feeding roller mechanism comprises a set of coaxial stacked combination rollers. The multi-feeding collector is provided with a plurality of feeding ports, and the multi-feeding roller mechanism comprises a set of coaxial stacked combination rollers.

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The hot melting part comprises an air outlet channel and an air outlet provided on the main shell. The air outlet channel is connected with a hot air structure. The air outlet is provided at the lower part of the tooth channel. The hot air generated by the hot air structure is transmitted to the air outlet through the air outlet channel and then blown to the lower part of the tooth channel to act on the periphery of the comb tooth, so as to heat the periphery of the comb tooth to melt the residual oil agent condensed on the periphery of the comb tooth. The suction part is provided at the upper part of the inner cavity of the main shell and is used to suck the inner cavity of the main shell. The melted residual oil agent is sucked into the dirt collecting cavity through the tooth channel and the inner cavity of the main shell.

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