Process for producing'heather grey 'series knitted fabrics from colored polyester and colored cotton fiber reclaimed materials

Abstract

The invention relates to a process for producing'heather grey 'series knitted fabrics from colored polyester and colored cotton fiber reworked materials, which comprises the following steps of: respectively carrying out hard waste opening and pretreatment on the colored polyester and colored cotton fiber reworked materials to obtain spinnable fibers; packaging the spinnable fibers by using colored polyester and colored cotton fiber regenerated material pretreatment equipment, and stacking and standing for later use; a rotor spinning process is adopted, a plurality of multi-bin cotton blending machines and three drawing procedures are matched, and blended yarn is obtained; selecting a corresponding circular knitting machine, and weaving to obtain a knitted gray fabric; the knitted gray fabric is rolled and delivered after being boiled off and shaped; reclaimed materials such as black polyester leftovers, pure cotton color spinning leftovers and pure cotton leftovers of a color spinning factory are directly used as spinning raw materials after physical processing. In addition, a ring spinning process is changed into a rotor spinning process, and the super-soft OE heather grey yarn is spun. Compared with the existing product, the carbon emission of the'heather grey 'knitted fabric produced by the method is reduced by more than 80%.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of textiles, in particular to a process for producing "grey hemp" series knitted fabrics from colored polyester and colored cotton fiber regenerated materials. BACKGROUND

[0002] The "grey hemp" knitted fabric is produced by mixing black polyester fiber or black-dyed cotton fiber with natural cotton in a box, and then going through the process of "carding and combing → head doubling → end doubling → spinning → winding → knitting → scouring and washing → setting → rolling → factory delivery". According to different names (polyester or cotton) and different proportions of colored fibers, "grey hemp" series polyester-cotton (cotton-polyester) or all-cotton grey hemp yarns with different yarn counts and different shades are produced, and then different circular knitting machines are used to form a series of "grey hemp" knitted fabrics. The process is quite mature. However, these products are all produced by mixing black-dyed polyester fiber with natural polyester fiber and cotton fiber to spin cotton yarn, which is then knitted on a circular knitting machine. After being dyed black, the cotton fiber increases carbon emissions. On the other hand, it causes quality surplus and mismatch of performance-price ratio in the low-end market. In addition, there are problems of material diversity and poor equipment applicability in the packaging step of the pre-treatment stage of regenerated fibers. SUMMARY

[0003] In order to solve the above-mentioned problems existing in the prior art, the present application aims to provide a process for producing "grey hemp" series knitted fabrics from colored polyester and colored cotton fiber regenerated materials.

[0004] The technical solution adopted by the present application is as follows:

[0005] The process for producing "grey hemp" series knitted fabrics from colored polyester and colored cotton fiber regenerated materials,

[0006] The process for producing "grey hemp" series knitted fabrics from colored polyester and colored cotton fiber regenerated materials according to the present application comprises the following steps:

[0007] S1, the colored polyester and colored cotton fiber regenerated materials are respectively subjected to back-silk opening and pretreatment to obtain spinnable fibers; the spinnable fibers are packaged and then stacked and placed for standby by using a colored polyester and colored cotton fiber regenerated material pretreatment device;

[0008] S2, a pneumatic spinning process is adopted, and a plurality of multi-bin cotton blending machines and three drawing processes are used to obtain blended yarns;

[0009] S3, a corresponding circular knitting machine is selected to knit the knitted gray fabric;

[0010] S4, the knitted gray fabric is scoured, set and then rolled and delivered;

[0011] In step S1, the recycled polyester and cotton fiber materials include: polyester color-spun yarn belly and gin; pure cotton color-spun yarn recycled materials; pure cotton color-spun yarn belly and gin; pure cotton white yarn belly and gin; pure polyester natural yarn belly and gin;

[0012] The pretreatment equipment for colored polyester and colored cotton fiber recycled materials includes a supporting column, a supporting frame fixedly connected to one end of the supporting column and having a hollow structure, multiple control cylinders installed on the supporting frame, multiple control panels respectively driven by the multiple control cylinders and slidably connected to each other and distributed in a circular array, a pressure plate installed on the supporting column and corresponding to the center of the circular array of the multiple control panels, and a supporting plate installed in the hollow position of the supporting frame; the horizontal cross-sectional size of the pretreatment package is controlled by the multiple control panels, and the vertical height of the pretreatment package is controlled by the pressure plate and the supporting plate.

[0013] As a preferred embodiment of the present invention, when processing the belly and ginning flower of polyester color-spun yarn, black and gray polyester color-spun belly and ginning flower are selected, mixed in a ratio of 1:1 and fed into a single licker-in opener for opening, and sprayed with an aqueous solution after infiltration of an antistatic agent, and its moisture regain is controlled to be 3-5%. The yarn is left to stand for 36-48 hours to obtain polyester spinnable fibers, which are then packaged using the colored polyester and colored cotton fiber recycled material pretreatment equipment.

[0014] As a preferred embodiment of the present invention, when processing pure cotton color-spun waste recycled materials, the waste yarns of different dark colors are basically classified and stacked, and the classified waste yarns are sent to the opening room in packages according to color and arrival weight, and are cut into piles of 30-40 mm by a cutting machine, and left to stand for 24-36 hours to obtain pure cotton spinnable fibers, which are then packaged using the color polyester and color cotton fiber recycled material pretreatment equipment.

[0015] As a preferred embodiment of the present invention, when processing pure cotton colored spinning belly flowers and ginning flowers, black, gray and blue belly flowers, ginning flowers and return strips are selected for preliminary color classification and stacking, and after mixing, impurity removal and short-lint treatment, the moisture regain is controlled to be 8-9% to obtain pure cotton spinnable fibers, which are then packaged using the colored polyester and colored cotton fiber recycled material pretreatment equipment.

[0016] As a preferred embodiment of the present invention, when processing pure cotton white belly and ginning flower, a reciprocating cotton plucking machine, a porcupine cotton opener, a carding needle cotton opener, a dust removal machine, and a carding machine are used to process them to obtain pure cotton spinnable fibers, which are then packaged using the colored polyester and colored cotton fiber recycled material pretreatment equipment.

[0017] As a preferred embodiment of the present invention, when processing pure polyester natural color belly flowers and guillotines, the pure polyester natural color belly flowers and guillotines are evenly fed into a single licker-in opener for opening, and sprayed with an aqueous solution after infiltration of an antistatic agent, and the moisture regain is controlled at 3-5%. The fibers are allowed to stand for 36-48 hours to obtain polyester spinnable fibers, which are then packaged using the colored polyester and colored cotton fiber recycled material pretreatment equipment.

[0018] As a preferred embodiment of the present invention, a slide rail is provided on one side of the control panel, and the slide rail of any one of the control panels is slidably connected to the end of another control panel; a transmission column is fixedly provided on one side of any control panel, the cylinder barrel of the control cylinder is fixedly connected to the supporting frame, the piston rod of the control cylinder is slidably connected to the transmission column, and a baffle is fixedly provided on the end of the transmission column away from the control panel; a feed port is fixedly provided on the side of the control panel away from the supporting frame, and the spinnable fiber is transported between the multiple control panels from the feed port, and a pre-treated package is obtained after being squeezed by the control panel, the pressure plate and the supporting plate, and the slide rail makes the pre-treated package show the cable tie baseline.

[0019] As a preferred embodiment of the present invention, there are two supporting columns, and the two supporting columns are respectively provided with mounting grooves at one end away from the supporting frame, and a screw rod and a guide rail are provided between the two mounting grooves, and the two ends of the screw rod are respectively rotatably connected to the inner walls of the two mounting grooves, and the two ends of the guide rail are respectively fixedly connected to the inner walls of the two mounting grooves; a movable box is provided between the pressure plate and the guide rail, and a threaded block is fixedly provided at the end of the movable box away from the pressure plate, and the threaded block is threadedly matched with the screw rod, and a sliding groove is provided on the side of the movable box away from the pressure plate, and the sliding groove is slidably connected to the guide rail.

[0020] As a preferred embodiment of the present invention, a forming cylinder is provided between the moving box and the pressure plate, the cylinder of the forming cylinder is fixedly connected to the moving box, a connecting plate is fixedly provided on the piston rod of the forming cylinder, a rack is fixedly provided on one side of the connecting plate, a connecting groove is provided on the side of the pressure plate close to the moving box, the connecting groove is slidably connected to the connecting plate, the direction in which the connecting plate slides along the connecting groove is symmetrically perpendicular to the direction in which the slide groove slides along the guide rail; a mounting seat is fixedly provided on one side of the pressure plate, a control motor is installed on the mounting seat, a control gear is fixedly provided on the output shaft of the control motor, and the control gear is meshed with the rack; a driving motor is installed in one of the mounting grooves, and the output shaft of the driving motor drives the screw rod through a pulley group and a synchronous belt.

[0021] As a preferred embodiment of the present invention, a supporting foot is provided on the side of the supporting plate away from the control panel, the supporting foot is hinged to the control panel, a discharging cylinder is provided on one side of the control panel, the piston rod of the discharging cylinder is in contact with the side of the supporting frame away from the control panel, and a hanging ear is fixedly provided on the end of the supporting column away from the supporting frame; the hanging ear cooperates with a crane to control the lifting of the supporting column, the control panel and the supporting frame, and the discharging cylinder cooperates with the supporting foot to control the tilt of the supporting frame, thereby realizing the transfer of the pre-treated packages, and the pre-treated packages are bundled and stacked by the cable tie reference line and then left stationary for use.

[0022] The beneficial effects of the present invention are:

[0023] Recycled materials such as black polyester scraps from color-dyed spinning mills, pure cotton scraps from color-dyed spinning mills, and pure cotton scraps are directly used as spinning raw materials after physical processing. Furthermore, the ring spinning process has been converted to an open-end spinning process to produce ultra-soft OE heather gray yarn. This "heather gray" knitted fabric reduces carbon emissions by over 80% compared to existing products. It offers exceptional cost-effectiveness, saving over 60% in procurement costs compared to current market supply for specific low-end market needs, creating significant economic value. Furthermore, unified equipment is used to pre-process various recycled materials, with control panel adjustments to meet the requirements of varying pre-processed package cross-sections. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0025] Figure 1 This is a schematic structural diagram of the equipment for pre-treating recycled colored polyester and colored cotton fibers of the present invention;

[0026] Figure 2 This invention Figure 1 A schematic diagram of the front structure of FIG.

[0027] Figure 3 This invention Figure 2 A schematic diagram of the enlarged structure at point A;

[0028] Figure 4 This invention Figure 1 Schematic diagram of the top view structure;

[0029] Figure 5 This invention Figure 1 Schematic diagram of the structure after the relevant parts of the control panel are hidden;

[0030] Figure 6 This invention Figure 5 Schematic diagram of the enlarged structure at point B. DETAILED DESCRIPTION

[0031] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0032] Combine Figures 1-6 The process for producing "hemp grey" series knitted fabrics from recycled colored polyester and colored cotton fiber materials includes the following steps:

[0033] S1. Opening and pre-treating the recycled colored polyester and colored cotton fibers to obtain spinnable fibers; using a pre-treating device for the recycled colored polyester and colored cotton fibers to pack the spinnable fibers, and stacking the fibers for standby use;

[0034] Example 1

[0035] 1. Regularly purchase black and gray car belly and knife flowers from the color spinning factory, with each accounting for 50%.

[0036] 2. Mix the fibers in a 1:1 ratio and feed them into a single licker-in opener for opening. This separates the fiber clumps into single fibers. During the opening process, a solution containing an antistatic oil (2%-3%) is automatically sprayed to control the moisture regain to 3%-5%.

[0037] 3. Use an automatic baler to pack the processed polyester fiber. The weight of each bag should be controlled within 140KG±2KG. Let it stand for 36-48 hours before use.

[0038] 4. Polyester color fiber recycled material, the current market ex-factory price is 1500 yuan / ton, shipping and processing fee is 500 yuan / ton, the direct use price is 2000 yuan / ton. The raw material number is TZ01.

[0039] 5. Usage: Determine the amount of polyester regenerated fiber according to the type of fabric being spun, the color of the finished fabric, and the ratio of cotton (polyester) content, and use it directly.

[0040] Example 2

[0041] 1. Regularly purchase various dark-colored cotton waste, yarn belly, ginning flower and other recycled fibers from color spinning mills.

[0042] 2. The waste silk of different dark colors shall be classified and stacked, and the amount of waste silk each time shall be more than 200 tons.

[0043] 3. Use the following process to process the recycled yarn:

[0044] (1) Cut the waste wire into piles, let them swell and moisten, and let them stand for 24-26 hours.

[0045] The sorted waste silk is delivered to the opening room, package by package, according to color and arrival weight. It is cut into 30-40mm piles by a cutting machine. Each layer is laid out as a rectangular parallelepiped with a length of 4-5m, a width of 3-4m, and a height of 0.3-0.4m. A swelling agent is added to water to prepare a swelling liquid with a concentration of 0.05%-0.1%. The liquid is evenly sprayed onto the surface of each layer of the waste silk pile, with the amount being 10-15% of the weight of the waste silk. Another layer of waste silk is laid on top, and the swelling liquid is sprayed on top. This process is repeated until the waste silk pile reaches a height of 1.5m-2m. The entire pile is then covered with plastic film and left to stand for 24-36 hours.

[0046] (2) Opening of the yarn

[0047] A. Opening equipment process:

[0048] 600 cotton cleaning machine, opening machine (with cotton box) [10 350 rabbet machines / 10 350 rabbet machines] automatic baling machine.

[0049] (Note: equipped with pipelines, relay fans, dust removal equipment, and spraying devices)

[0050] B. The main length of the fiber after opening is about 23mm, the short fiber rate is controlled below 30%, and the moisture regain is controlled at 9-10%.

[0051] C. The package weight should be controlled within 140-150 kg.

[0052] 4. Processing fee: 1,000 yuan / T.

[0053] 5. The price of waste yarn (containing about 5% polyester) is 3,500 yuan / T.

[0054] 6. The price of the fiber after opening is 5,000 yuan / T (including loss), and the raw material number is CZ02.

[0055] Example 3

[0056] 1. Purchase dark-colored (black, gray, blue) car belly, guillotine, return strips, etc. from Huafu, Bailong and other color spinning factories for preliminary color classification and stacking. The weight of each purchase is more than 500 tons.

[0057] 2. Use the following process for processing: (Purpose: mixing, removing impurities, and short fibers).

[0058] FA002 reciprocating plucker (with magnet and fire alarm), FA106B porcupine cotton opener, FA106C needle cotton opener, FA105 dust remover, A186D carding machine (10 units) (with cotton box), automatic baling machine.

[0059] (Note: Humidify during processing to control the moisture regain at 8-9%)

[0060] 3. The packaging weight of each package is controlled at 140-150KG.

[0061] 4. Processing fee: 500 yuan / T.

[0062] 5. The raw material price is 3,500 yuan / T, the loss is 1.3, which is converted to 4,500 yuan / T. The price after processing is 5,000 yuan / T.

[0063] 6. Raw material number CZ03.

[0064] Example 4

[0065] 1. Purchase pure cotton white belly and ginning flower from cotton mills, with each purchase quantity being around 100 tons.

[0066] 2. Use processing procedures to process recycled materials.

[0067] FA002 reciprocating plucker (with magnet and fire alarm) → FA106B porcupine cotton opener → FA106C needle cotton opener → FA105 dust remover → A186D carding machine (10-12 units) (with cotton box) → automatic baling machine.

[0068] 3. The packaging weight of each package is controlled at 140-150KG.

[0069] 4. Processing fee: 500 yuan / T.

[0070] 5. The raw material price is 8,000 yuan / ton, the loss is 1.3, which is converted to 10,500 yuan / ton. The price after processing is 11,000 yuan / ton.

[0071] 6. The raw material number is CZ04.

[0072] Example 5

[0073] 1. Evenly feed pure polyester recycled material (purchased from the spinning mill) into a single licker-in opener to open the finished yarn into a single fiber state. Before feeding it into the package, spray a solution containing an electrostatic oil agent (2%-3%) to control the moisture regain at 3-5%. Automatically pack it into a bag weight of 130-150 kg and let it stand for 36-48 hours before use.

[0074] 2. The price of recycled materials is 6,000 yuan / T, the processing fee is 300 yuan / T, the loss is 100 yuan / T, and the price after processing is 6,400 yuan / T.

[0075] 3. The raw material number is TZ05.

[0076] S2, using the air-spinning process, with multiple multi-bin blending machines and three drawing processes to obtain blended yarn;

[0077] Specific configuration: reciprocating cotton plucking machine heavy object separator (equipped with fire alarm, magnetic metal suction device), multi-bin mixed cotton opening machine (10-12 bins), multi-bin mixed cotton opening machine (10-12 bins) (one more machine compared to the conventional process), fine cotton opener, dust removal machine TC-10 carding machine (all of the above equipment must be German Tru equipment produced after 2024), first draw frame, second draw frame, third draw (final draw) draw frame (must be Swiss Rieter equipment produced after 2024, one more draw process than the traditional process), A9 German Schlafhorst air-end spinning machine or Swiss Rieter R70 air-end spinning machine.

[0078] In the blowing and carding production line, one more multi-bin mixed cotton opening machine is added compared with the conventional traditional process, and the drawing process is increased from the conventional two-step drawing to one more step, making it three-step drawing.

[0079] Main parameters of spinning feeding and each process:

[0080] 1. Variety and specifications:

[0081] According to the above five raw materials, we can produce polyester-cotton products with different proportions and yarn counts in three series, as shown in the following table:

[0082]

[0083]

[0084] 2. Feeding ratio and arrangement order:

[0085] The number of bales to be packed is calculated based on the polyester and cotton content of the spun variety and the weight of the raw materials per bale. In principle, the weight ratio of the cotton bales should be 2% higher than that of the blended variety.

[0086] Polyester and cotton bales are packed in even intervals.

[0087] Fabric numbers are assigned based on the depth of the hemp gray fabric. Different numbers determine the cotton composition and the amount of each raw material used.

[0088] The fabrics produced use 5 kinds of raw materials, numbered TZ01 / CZ02 / CZ03 / CZ04 / TZ05. Based on these five raw materials, different series, different proportions, different yarn counts and different shades of "hemp gray series knitted fabrics" can be produced.

[0089] 3. Main process parameters:

[0090]

[0091]

[0092] Through the above equipment selection, process configuration and process parameter optimization, it is ensured that the quality level of the spun yarn count reaches within 10% of the Uster Bulletin level under the same raw material ratio, and the efficiency of the circular knitting machine is above 90%.

[0093] S3. Select the corresponding large circular machine to weave the knitted grey fabric; according to the requirements of fabric thickness in different seasons such as autumn and winter, double-sided circular machines are used to produce knitted grey fabric with a gram weight of 200-500g / ㎡.

[0094] S4, including pre-treatment, dyeing, printing and finishing; knitted fabrics are scouring, shaping and rolling before leaving the factory.

[0095] The present invention is further described in detail below with reference to a specific implementation example. This implementation example is implemented based on the technical solution of the present invention, and provides detailed comparative benefits, implementation methods and specific operating procedures.

[0096] 1. Comparison table of various indicators of fabrics currently available on the market and the fabrics of the present invention:

[0097]

[0098]

[0099] As can be seen from the above table, the following conclusions are drawn by comparing the heather grey knitted finished fabrics of the same specifications (same color, same fabric weight and same style) produced on the existing market with those produced using the method of the present invention:

[0100] The method of the present invention fills a gap in the low-end customer market and offers a very high cost-effectiveness. Preliminary estimates suggest that the global annual sales volume is 30,000 to 50,000 tons, saving procurement costs of 9,400 to 15,000 yuan per ton, resulting in a total annual procurement cost savings of 280 to 750 million yuan, representing significant economic benefits.

[0101] The raw materials used in the products of the present invention are all recycled raw materials, while the spinning raw materials of the products currently sold on the market are all chemical products (polyester) and naturally grown cotton (using pesticides and fertilizers), and the colored fibers have to go through a dyeing process, which consumes a lot of energy, water, and dyes. Compared with the two methods, the products of the present invention are green, low-carbon, and environmentally friendly, and have huge social benefits.

[0102] The product of the present invention has certain differences in hand feel, surface clarity and wearing performance compared with the products currently sold on the market, but these differences are not enough to affect the demand of the low-end market, such as short-term temporary clothing, and has broad market prospects.

[0103] In step S1, the recycled polyester and cotton fiber materials include: polyester color-spun yarn belly and gin; pure cotton color-spun yarn recycled materials; pure cotton color-spun yarn belly and gin; pure cotton white yarn belly and gin; pure polyester natural yarn belly and gin;

[0104] The pretreatment equipment for recycled colored polyester and cotton fibers includes a support column 11, a hollow support frame 16 fixedly connected to one end of the support column 11, multiple control cylinders 17 mounted on the support frame 16, multiple control panels 12 arranged in a circular array and driven by the multiple control cylinders 17 and slidably connected to each other, a pressure plate 21 mounted on the support column 11 and corresponding to the center of the circular array of the multiple control panels 12, and a support plate 35 mounted in the hollow portion of the support frame 16. The multiple control panels 12 control the horizontal cross-sectional size of the pretreated package, while the pressure plate 21 and support plate 35 control the vertical height of the pretreated package. Four control panels 12 are provided, which together enclose the pretreated package to form it.

[0105] Advantageously, a slide rail 13 is provided on one side of the control panel 12, and the slide rail 13 of any one of the control panels 12 is slidably connected to the end of another of the control panels 12; a transmission column 14 is fixedly provided on one side of any of the control panels 12, the cylinder barrel of the control cylinder 17 is fixedly connected to the supporting frame 16, the piston rod of the control cylinder 17 is slidably connected to the transmission column 14, and a baffle 15 is fixedly provided on the end of the transmission column 14 away from the control panel 12; a feed port 23 is fixedly provided on the side of the control panel 12 away from the supporting frame 16, and the spinnable fiber is transported between the multiple control panels 12 from the feed port 23, and a pre-treated package is obtained after being squeezed by the control panel 12, the pressing plate 21 and the supporting plate 35, and the slide rail 13 makes the pre-treated package show the cable tie baseline. The height of the feed port 23 is much higher than the height of the pretreatment package, which will not cause leakage of the spinnable fiber during the molding process. The feed port 23 is located on one side of the control board 12. Before and after the adjacent control board 12 slides, the area connected to the feed port 23 can always be ensured to be within the pretreatment package molding space.

[0106] Advantageously, two supporting columns 11 are provided, each having a mounting slot 22 at one end away from the supporting frame 16. A screw rod 20 and a guide rail 30 are disposed between the two mounting slots 22. The screw rod 20 is rotatably connected to the inner walls of the two mounting slots 22 at both ends, and the guide rail 30 is fixedly connected to the inner walls of the two mounting slots 22 at both ends. A movable box 19 is disposed between the pressing plate 21 and the guide rail 30. A threaded block 29 is fixedly disposed at one end of the movable box 19 away from the pressing plate 21. The threaded block 29 is threadedly engaged with the screw rod 20. A slide 28 is disposed on the side of the movable box 19 away from the pressing plate 21. The slide 28 is slidably connected to the guide rail 30. The pressing plate 21 presses the four corners of the pre-processed package, allowing the pressing and forming operation to be completed using the pressing plate 21 even if the pre-processed package has a non-uniform cross-section.

[0107] The cam 36 is connected to the drive shaft 31 of the second gear 32 and the second gear 33 is connected to the cam 36 by the cam 36. The cam 36 is connected to the drive shaft 31 of the second gear 32 and the second gear 33 is connected to the cam 36 by the cam 36. The pulley assembly includes a driving pulley fixed on the output shaft of the driving motor 32 and a transmission pulley fixed on the screw rod 20 .

[0108] Advantageously, a support foot 18 is provided on the side of the supporting plate 35 away from the control panel 12, and the support foot 18 is hinged to the control panel 12. A discharge cylinder 24 is provided on one side of the control panel 12, and the piston rod of the discharge cylinder 24 abuts against the side of the supporting frame 16 away from the control panel 12. A hanging ear 38 is fixedly provided on the end of the supporting column 11 away from the supporting frame 16; the hanging ear 38 cooperates with the crane to control the lifting of the supporting column 11, the control panel 12 and the supporting frame 16, and the discharge cylinder 24 cooperates with the support foot 18 to control the tilt of the supporting frame 16, thereby realizing the transfer of the pre-treated packages. After the pre-treated packages are bundled and stacked by the cable tie reference line, they are left stationary for use.

[0109] The working principle of the colored polyester and colored cotton fiber recycled material pretreatment equipment of the present invention is as follows:

[0110] In the initial state, the feed port 23 is connected to the end of the spinnable fiber conveying device, the carrying plate 35 is horizontal and has the same height as the carrying frame 16 , and the bottom end of the control board 12 is in contact with the carrying plate 35 and the carrying frame 16 .

[0111] Multiple control cylinders 17 are activated, controlling their corresponding piston rods to slide the transmission column 14, adjusting the positions of the four control plates 12 according to the cross-sectional dimensions of the pre-processed packages. After a fixed amount of spinnable fiber is delivered to the space between the four control plates 12, delivery is paused. The height of the spinnable fiber does not exceed the location of the feed port 23.

[0112] The driving motor 32 is started, and the screw rod 20 is controlled to rotate through the synchronous belt group and the synchronous belt. The rotation of the screw rod 20 drives the threaded block 29 to move along the screw rod 20 under the action of the thread, so that the movable box 19 and the guide rail 30 slide relative to each other; the control motor 26 is started, and the connecting plate 37 is driven to slide along the connecting groove 34 through the action of the control gear 27 and the rack 36, so that the connecting plate 37 and the pressure plate 21 slide relative to each other.

[0113] The driving motor 32 and the control motor 26 are used to control the movable box 19 and the pressing plate 21 to be centered within their allowed sliding paths, and the control cylinder 33 is started. The piston rod of the fixing cylinder 33 extends and drives the connecting plate 37 and the pressing plate 21 to press down synchronously, pressing the middle position of the spinnable fiber to a certain height, and then the fixing cylinder 33 is controlled to reset.

[0114] The driving motor 32 controls the movable box 19 to slide to both ends successively, until the corners of the pressing plate 21 correspond to the angle between the two adjacent control plates 12, and the shaping cylinder 33 is controlled to press down the two diagonal positions of the spinnable fiber, and then reset;

[0115] The motor 26 is controlled to control the pressing plate 21 to slide to both ends successively, until the corners of the pressing plate 21 correspond to the angle positions of the two adjacent control plates 12, and the shaping cylinder 33 is controlled to press down the other two diagonal positions of the spinnable fiber, and then reset.

[0116] After the center and four corners of the spinnable fiber are pressed down to the specified height, wait for a certain period of time for the pre-treatment package to be formed, start the control cylinder 17, control the multiple control panels 12 to reset, and under the influence of the slide rail 13, a dent is formed on the side of the pre-treatment package, which serves as the baseline for the subsequent cable tie.

[0117] By connecting the hanging ear 38 to the end execution part of the crane, the load-bearing column 11 is lifted, and the load-bearing frame 16, control panel 12 and other related components are lifted together, leaving only the pre-treated package statically on the surface of the load-bearing plate 35. The discharge cylinder 24 is started, and its piston rod is controlled to retract, and the load-bearing plate 35 and the support foot 18 rotate. The load-bearing plate 35 tilts to one side, and the pre-treated package thereon slides into the conveyor belt and is sent into the cable tie binding mechanism. The indentation formed by the slide rail 13 is used as the cable tie reference line, and the pre-treated package is tied in a crisscross pattern. After the tying is completed, it is transported into the warehouse and left static for use.

[0118] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. The process for producing "heather grey" series knitted fabrics from recycled polyester and cotton fibers is characterized by: The following steps are involved: S1. Opening and pre-treating the recycled colored polyester and colored cotton fibers to obtain spinnable fibers; using a pre-treating device for the recycled colored polyester and colored cotton fibers to pack the spinnable fibers, and stacking the fibers for standby use; S2, using the air-spinning process, with multiple multi-bin blending machines and three drawing processes to obtain blended yarn; S3, select the corresponding circular knitting machine to weave the knitted fabric; S4, scouring and shaping the knitted fabric, and then rolling it up for shipment; In step S1, the recycled polyester and cotton fiber materials include: polyester color-spun yarn belly and gin; pure cotton color-spun yarn recycled materials; pure cotton color-spun yarn belly and gin; pure cotton white yarn belly and gin; pure polyester natural yarn belly and gin; The pretreatment equipment for colored polyester and colored cotton fiber recycled materials includes a supporting column, a supporting frame fixedly connected to one end of the supporting column and having a hollow structure, multiple control cylinders installed on the supporting frame, multiple control panels respectively driven by the multiple control cylinders and slidably connected to each other and distributed in a circular array, a pressure plate installed on the supporting column and corresponding to the center of the circular array of the multiple control panels, and a supporting plate installed in the hollow position of the supporting frame; the horizontal cross-sectional size of the pretreatment package is controlled by the multiple control panels, and the vertical height of the pretreatment package is controlled by the pressure plate and the supporting plate.

2. The process for producing "heather grey" series knitted fabrics from recycled colored polyester and colored cotton fibers according to claim 1, characterized in that: When processing the belly and gin of polyester colored spinning, black and gray polyester colored spinning belly and gin are selected, mixed in a ratio of 1:1 and fed into a single licker-in roller opener for opening, and sprayed with an aqueous solution after infiltration of an antistatic agent, and the moisture regain is controlled to be 3-5%. The fibers are left to stand for 36-48 hours to obtain polyester spinnable fibers, which are then packaged using the colored polyester and colored cotton fiber recycled material pretreatment equipment.

3. The process for producing "heather grey" series knitted fabrics from recycled colored polyester and colored cotton fibers according to claim 1, characterized in that: When processing pure cotton colored spun yarn recycled materials, the yarn wastes of different dark colors are basically classified and stacked, and the classified yarn wastes are sent to the opening room in packages according to color and arrival weight, and are cut into piles of 30-40 mm by a cutting machine, and left to stand for 24-36 hours to obtain pure cotton spinnable fibers, which are then packaged using the colored polyester and colored cotton fiber recycled material pretreatment equipment.

4. The process for producing "heather grey" series knitted fabrics from recycled colored polyester and colored cotton fibers according to claim 1, characterized in that: When processing pure cotton colored spinning belly flowers and ginning flowers, black, gray and blue belly flowers, ginning flowers and return strips are selected for preliminary color classification and stacking, and are mixed, impurity-removed and short-linted, and their moisture regain is controlled to be 8-9% to obtain pure cotton spinnable fibers, which are then packaged using the colored polyester and colored cotton fiber recycled material pretreatment equipment.

5. The process for producing "heather grey" series knitted fabrics from recycled colored polyester and colored cotton fibers according to claim 1, characterized in that: When processing pure cotton white belly and ginning flower, a reciprocating cotton plucker, a porcupine cotton opener, a carding needle cotton opener, a dust remover and a carding machine are used to process the cotton to obtain pure cotton spinnable fibers, which are then packaged using the colored polyester and colored cotton fiber recycled material pretreatment equipment.

6. The process for producing "heather grey" series knitted fabrics from recycled colored polyester and colored cotton fibers according to claim 1, characterized in that: When processing pure polyester natural color belly flower and guillotine flower, the pure polyester natural color belly flower and guillotine flower are evenly fed into a single licker-in opener for opening, and sprayed with an antistatic agent infiltrated aqueous solution to control the moisture regain to be 3-5%. The fibers are left to stand for 36-48 hours to obtain polyester spinnable fibers, which are then packaged using the colored polyester and colored cotton fiber recycled material pretreatment equipment.

7. The process for producing "heather grey" series knitted fabrics from recycled colored polyester and colored cotton fibers according to claim 1, characterized in that: A slide rail is provided on one side of the control panel, and the slide rail of any one of the control panels is slidably connected to the end of another control panel; a transmission column is fixedly provided on one side of any control panel, the cylinder barrel of the control cylinder is fixedly connected to the supporting frame, the piston rod of the control cylinder is slidably connected to the transmission column, and a baffle is fixedly provided on the end of the transmission column away from the control panel; a feed port is fixedly provided on the side of the control panel away from the supporting frame, and the spinnable fiber is transported between the multiple control panels through the feed port, and a pre-treated package is obtained after being squeezed by the control panel, the pressure plate and the supporting plate, and the slide rail makes the pre-treated package show the cable tie baseline.

8. The process for producing "heather grey" series knitted fabrics from recycled colored polyester and colored cotton fibers according to claim 7, characterized in that: There are two supporting columns, and the two supporting columns are respectively provided with mounting grooves at one end away from the supporting frame, and a screw rod and a guide rail are provided between the two mounting grooves, and the two ends of the screw rod are respectively rotatably connected to the inner walls of the two mounting grooves, and the two ends of the guide rail are respectively fixedly connected to the inner walls of the two mounting grooves; a movable box is provided between the pressure plate and the guide rail, and a threaded block is fixedly provided at the end of the movable box away from the pressure plate, and the threaded block is threadedly matched with the screw rod, and a sliding groove is provided on the side of the movable box away from the pressure plate, and the sliding groove is slidably connected to the guide rail.

9. The process for producing "heather grey" series knitted fabrics from recycled colored polyester and colored cotton fibers according to claim 8, characterized in that: The transmission mechanism that this sliding panel also is provided with an interlocking structure, and this interlocking structure is that interlocking gears are interlocked, and this interlocking gear is meshed with each other, and this interlocking gear is meshed with each other.

10. The process for producing "heather grey" series knitted fabrics from recycled colored polyester and colored cotton fibers according to claim 9, characterized in that: A supporting foot is provided on the side of the supporting plate away from the control panel, and the supporting foot is hinged to the control panel. A discharging cylinder is provided on one side of the control panel, and the piston rod of the discharging cylinder abuts against the side of the supporting frame away from the control panel. A hanging ear is fixedly provided on the end of the supporting column away from the supporting frame; the hanging ear cooperates with a crane to control the lifting of the supporting column, the control panel and the supporting frame, and the discharging cylinder cooperates with the supporting foot to control the tilting of the supporting frame, thereby realizing the transfer of the pre-treated packages. After the pre-treated packages are bundled and stacked by the cable tie reference line, they are left stationary for use.

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