Full-chromatography melt slice spinning device capable of automatically identifying and accurately adjusting color

By designing a full chromatographic melt slice spinning device that automatically recognizes and accurately adjusts color, the problems of inaccurate color tuning, inability to adjust multiple colors, complex operation and high cost in the prior art are solved, and automatic recognition and accurate color tuning are achieved. and automatic cleaning improves production efficiency and color accuracy.

CN119433725APending Publication Date: 2025-02-14JIANGSU HENGKE ADVANCED MATERIALS CO LTD
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Patent Information

Application Number
CN202411895617.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-22
Publication Date
2025-02-14

AI Technical Summary

Technical Problem

The existing spinning technology has problems such as inaccurate coloring, inability to achieve multi-color adjustment, complex operation and high cost in the coloring of the stock liquid.

Method used

Design a full chromatographic melt slice spinning device that can automatically identify and accurately adjust colors. Three second feeding mechanisms are arranged to transport masterbatches of red, yellow and blue respectively, and are equipped with spectrophotometers and Control mechanism to automatically identify the target color number and perform accurate color matching. At the same time, the device has automatic cleaning function to reduce manual operation and color change processes.

Benefits of technology

It realizes automatic identification of the color number of the target production color sample and accurate color adjustment. The error is small, the full chromatography can be freely adjusted, and the area is small. The color change process is shortened and the cost is reduced through the automatic cleaning function.

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Abstract

The invention discloses a full-color-spectrum melt slice spinning device capable of achieving automatic recognition and accurate color matching. The full-color-spectrum melt slice spinning device comprises a first material conveying mechanism, a second material conveying mechanism, a third material conveying mechanism, a material mixing mechanism, a spectrophotometer, a control mechanism and a spinning manifold. The first material conveying mechanism is provided with a first metering pump and a first outlet. And the three second conveying mechanisms are respectively used for conveying red, yellow and blue color master batches. The second material conveying mechanism is provided with a second metering pump and a second outlet. And a first material level sensor is arranged at the upstream of the second metering pump. And the third material conveying mechanism is provided with a third metering pump and a third outlet. And the mixing mechanism is communicated with the first conveying mechanism, the second conveying mechanism and the third conveying mechanism, and is provided with a feeding hole and a fourth outlet. The spinning box body is connected with the fourth outlet. The control mechanism is electrically connected with the spectrophotometer, the first metering pump, the second metering pumps, the first material level sensor and the third metering pump, and the control mechanism is used for receiving color number information of the spectrophotometer and controlling the rotating speed of the three second metering pumps.
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Description

Technical Field

[0001] The present invention relates to the field of spinning technology, and in particular to a full-color spectrum melt-slice spinning device capable of automatic identification and precise color matching. Background Art

[0002] The description in this section merely provides background information related to the disclosure of this specification and does not constitute prior art.

[0003] At present, there are three methods for coloring chemical fiber solution, namely, addition method during polymerization, addition method before spinning and addition method after spinning.

[0004] The addition method during polymerization is to add colorants during the polymerization of the monomers that make up the chemical fiber. It has high requirements for the heat resistance and dispersibility of the colorant, and also requires a certain affinity between the colorant and the polymer. This method is suitable for directly adding the colorant to the reaction system during the polymerization process to form a colored polymer, and then directly spinning colored fibers.

[0005] The pre-spinning addition method is to add colorants and mix them before entering the spinning process. For example, in dry spinning, the colorant is added to the spinning solution; or in melt spinning, the colorant is mixed in the spinning pelletizing stage. This method requires the colorant to have good mixing properties with the spinning solution to ensure uniform coloring.

[0006] The post-spinning addition method is to add the colorant to the fiber through subsequent treatment after the spinning process is completed. Although this method does not directly color the fiber at the stage of the original liquid, it can also achieve fiber coloring through subsequent treatment, which is suitable for chemical fibers that have not yet developed special colorants.

[0007] However, the three methods of coloring the original liquid have the following disadvantages: 1. It is not possible to accurately adjust the color, and manual comparison of the customer's sample color is required, resulting in large errors; 2. Only single-color coloring can be performed at one time, and it is impossible to adjust and change to cope with the changing market demand; when adding during spinning, only one masterbatch can be added at a time. The single-color masterbatch sold on the market has an incomplete color spectrum and it is difficult to meet the multi-purpose needs of customers. The post-spinning addition method also has this defect; 3. The technical method of adding color during polymerization is relatively fixed. If the color needs to be changed, the entire polyester reactor must be stopped to clean the pipes and reactor, which has a long process, difficult operation and high cost.

[0008] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solutions of this specification and for the convenience of understanding by those skilled in the art. It cannot be considered that the above technical solutions are well known to those skilled in the art simply because they are described in the background technology section of this specification. Summary of the invention

[0009] In view of the shortcomings of the prior art, one purpose of this specification is to provide a full-spectrum melt chip spinning device that can automatically identify and accurately adjust the color, which can automatically detect the sample color and color the main spinning material with the original color to make it consistent with the sample color, can color the full spectrum through three masterbatches, and has an automatic cleaning function.

[0010] To achieve the above-mentioned purpose, the embodiment of the present specification provides a full-color spectrum melt chip spinning device capable of automatic identification and accurate color matching, comprising: A first material feeding mechanism is used to feed the spinning main material to be colored; the first material feeding mechanism is provided with a first metering pump and a first outlet, and the first metering pump is used to meter the feeding amount of the spinning main material; Three second feeding mechanisms are used to feed red, yellow and blue masterbatches respectively; the second feeding mechanism is provided with a second metering pump and a second outlet, and the three second metering pumps are used to meter the feeding amount of red, yellow and blue masterbatches respectively; a first material level sensor is provided upstream of the second metering pump to detect the material level in front of the second metering pump; A third feeding mechanism is used to feed the cleaning agent; the third feeding mechanism is provided with a third metering pump and a third outlet, and the third metering pump is used to measure the delivery amount of the cleaning agent; A mixing mechanism connected to the first feeding mechanism, the second feeding mechanism and the third feeding mechanism, wherein the mixing mechanism is provided with a feeding port, and the feeding port is connected to the first outlet, the second outlet and the third outlet; the mixing mechanism is provided with a fourth outlet; Spectrophotometer, used to analyze and confirm the color number of the target production color sample; A control mechanism, electrically connected to the spectrophotometer, the first metering pump, the three second metering pumps, the three first material level sensors, and the third metering pump, the control mechanism being used to receive the color number information of the spectrophotometer and control the rotation speeds of the three second metering pumps; A spinning box connected to the fourth outlet.

[0011] As a preferred embodiment, the mixing mechanism comprises a mixing bin, the mixing bin is provided with the feed port, and the feed port is in an inverted cone shape; a conical portion facing the feed port is provided in the mixing bin.

[0012] As a preferred embodiment, the mixing mechanism further comprises a mixing pipe disposed below the mixing bin, wherein a plurality of folding baffles are staggeredly disposed in the mixing pipe.

[0013] As a preferred embodiment, the mixing mechanism also includes a material level monitoring bin arranged below the mixing tube, a second material level sensor is provided in the material level monitoring bin, the second material level sensor is electrically connected to the control mechanism, and the second material level sensor is a rotary resistance type material level sensor.

[0014] As a preferred embodiment, the mixing mechanism also includes a screw extruder arranged below the material level monitoring bin, the screw extruder includes a screw and a first motor, the first motor is used to drive the screw to rotate, and the screw is horizontally arranged for conveying the mixed material.

[0015] As a preferred embodiment, the mixing mechanism also includes a dynamic mixer connected to the outlet of the screw extruder, and the dynamic mixer is connected to a second motor; the inlet of the dynamic mixer is connected to the outlet of the screw extruder, and the fourth outlet is arranged at the outlet of the dynamic mixer.

[0016] As a preferred embodiment, the first feeding mechanism includes a wet material bin, a pre-crystallizer and a first drying tower connected in sequence, the wet material bin is provided with a first sight mirror; a wet material unloading metering valve is provided between the wet material bin and the pre-crystallizer; the first drying tower is provided with a second sight mirror; a first unloading valve is provided at the bottom of the first drying tower above the first outlet, and the first metering pump is arranged between the first unloading valve and the first outlet.

[0017] As a preferred embodiment, the second feeding mechanism includes a second drying tower, a second discharge valve is provided at the bottom of the second drying tower above the second outlet, and the second metering pump is arranged between the second discharge valve and the second outlet.

[0018] As a preferred embodiment, the second metering pump is a volumetric metering pump, and the control mechanism determines the feeding ratio of red, yellow and blue masterbatches according to the color number information, and then controls the rotation speed of the three volumetric metering pumps.

[0019] As a preferred embodiment, the third feeding mechanism includes a third drying tower, a third feeding valve is provided at the bottom of the third drying tower above the third outlet, and the third metering pump is arranged between the third feeding valve and the third outlet; when the third feeding mechanism is working, the three second feeding valves are closed, the first feeding valve and the third feeding valve are opened, and the spinning main material and the cleaning agent are fed according to a predetermined proportion. Beneficial Effects

[0020] The full-color spectrum melt-slice spinning device that can automatically identify and accurately adjust the color provided in this embodiment can respectively convey the masterbatches of red, yellow and blue (i.e., the three primary colors) by setting three second feeding mechanisms, and three second metering pumps, a spectrophotometer and a control mechanism can be set to mix the full-color spectrum polyester melt for spinning, without relying on the masterbatches on the market, and can freely adjust the color. The full-color spectrum color adjustment occupies a small area, and the full-color spectrum spinning can be achieved with only three masterbatches. By setting a spectrophotometer and a control mechanism, the color number of the target production color sample can be automatically identified and the color can be accurately matched with a small error. By setting a third feeding mechanism for conveying a cleaning agent, the program for cleaning pipelines and equipment can be automatically set, without manual operation, which is convenient and fast, shortening the color change process and reducing the color change cost.

[0021] With reference to the following description and the accompanying drawings, the specific embodiments of the present invention are disclosed in detail, indicating the manner in which the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope thereby.

[0022] Features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0023] It should be emphasized that the term “include / comprises” when used herein refers to the presence of features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps or components. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 This is a schematic structural diagram of a full-color spectrum melt-chip spinning device capable of automatic identification and accurate color matching provided in this embodiment; Figure 2 This is a schematic diagram of the structure of a mixing bin provided in this embodiment; Figure 3 This is a schematic structural diagram of a mixing tube provided in this embodiment; Figure 4 This is a structural schematic diagram of a material level monitoring bin provided in this embodiment; Figure 5 It is a schematic structural diagram of a dynamic mixer provided in this embodiment.

[0026] Description of reference numerals: 1. First feeding mechanism; 11. Wet material bin; 111. First sight glass; 12. Wet material unloading metering valve; 13. Pre-crystallizer; 14. First drying tower; 141. Second sight glass; 15. First unloading valve; 16. First metering pump; 17. First outlet; 2. Second material feeding mechanism; 21. Second drying tower; 22. Second material discharge valve; 23. Second metering pump; 24. Second outlet; 3. The third material feeding mechanism; 31. The third drying tower; 32. The third material discharge valve; 33. The third metering pump; 34. The third outlet; 4. Mixing mechanism; 41. Mixing bin; 411. Feed inlet; 412. Conical portion; 42. Mixing tube; 421. Folding baffle; 43. Material level monitoring bin; 431. Second material level sensor; 44. Screw extruder; 441. First motor; 45. Dynamic mixer; 451. Second motor; 452. Fourth outlet; 5. Spectrophotometer; 6. Control mechanism; 7. Spinning box; 71. Spinning assembly; 8. Installation platform. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0028] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be another element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be another element centered thereon at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] See also Figures 1 to 5 The embodiment of the present application provides a full-color spectrum melt chip spinning device capable of automatic identification and accurate color matching, comprising: a first feeding mechanism 1, a second feeding mechanism 2, a third feeding mechanism 3, a mixing mechanism 4, a spectrophotometer 5, a control mechanism 6 and a spinning box 7.

[0031] Among them, the first feeding mechanism 1 is used to convey the spinning main material to be colored, such as polyester chips. The first feeding mechanism 1 is provided with a first metering pump 16 and a first outlet 17, and the first metering pump 16 is used to measure the delivery amount of the spinning main material. There are three second feeding mechanisms 2, which are respectively used to convey the masterbatch of red, yellow and blue colors. The second feeding mechanism 2 is provided with a second metering pump 23 and a second outlet 24, and the three second metering pumps 23 are respectively used to measure the delivery amount of the masterbatch of red, yellow and blue colors. A first material level sensor (not shown) is provided upstream of the second metering pump 23 to detect the material level before the second metering pump 23. The third feeding mechanism 3 is used to convey the cleaning agent. The third feeding mechanism 3 is provided with a third metering pump 33 and a third outlet 34, and the third metering pump 33 is used to measure the delivery amount of the cleaning agent. The mixing mechanism 4 is connected with the first feeding mechanism 1, the second feeding mechanism 2 and the third feeding mechanism 3. The mixing mechanism 4 is provided with a feed inlet 411, and the feed inlet 411 is connected with the first outlet 17, the second outlet 24 and the third outlet 34. The mixing mechanism 4 is provided with a fourth outlet 452. The spectrophotometer 5 is used to analyze and confirm the color number of the target production color sample. The control mechanism 6 is electrically connected to the spectrophotometer 5, the first metering pump 16, the three second metering pumps 23, the three first material level sensors, and the third metering pump 33. The control mechanism 6 is used to receive the color number information of the spectrophotometer 5 and control the rotation speed of the three second metering pumps 23. The spinning manifold 7 is connected to the fourth outlet 452. After the spinning main material and the masterbatch are fully mixed by the mixing mechanism 4, they are discharged from the fourth outlet 452 to the spinning manifold 7.

[0032] The full-color spectrum melt-slice spinning device provided in this embodiment, which can automatically identify and accurately adjust the color, can respectively convey the masterbatches of red, yellow and blue (i.e., the three primary colors) by setting three second feeding mechanisms 2, and can also arrange three second metering pumps 23, a spectrophotometer 5 and a control mechanism 6, so that the full-color spectrum polyester melt can be prepared for spinning, without relying on the masterbatches on the market, and can be freely adjusted in color. The full-color spectrum color adjustment occupies less space, and the full-color spectrum spinning can be achieved by only three masterbatches. By setting the spectrophotometer 5 and the control mechanism 6, the color number of the target production color sample can be automatically identified and the color can be accurately matched with small errors. By setting the third feeding mechanism 3 for conveying the cleaning agent, the program for cleaning the pipeline and equipment can be automatically set, without manual operation, which is convenient and fast, shortening the color change process and reducing the color change cost.

[0033] In this embodiment, if Figure 2As shown, the mixing mechanism 4 includes a mixing bin 41. The mixing bin 41 is provided with the feed port 411, which is in an inverted cone shape, so as to facilitate the collection of the spinning main material and the master batches of various colors. The mixing bin 41 is provided with a conical portion 412 directly opposite to the feed port 411, and the spinning main material and the master batches of various colors fall from the inverted cone feed port 411 to the conical portion 412 to achieve the first mixing.

[0034] like Figure 3 As shown, the mixing mechanism 4 also includes a mixing tube 42 disposed below the mixing bin 41, and a plurality of downwardly inclined return baffles 421 are staggered in the mixing tube 42. The spinning main material and the masterbatch of each color fall by their own weight, flow back and forth between the return baffles 421, and mix to achieve a second mixing. The mixing tube 42 adopts a similar structural principle to a distillation tower to fully mix the masterbatch.

[0035] like Figure 4 As shown, the mixing mechanism 4 also includes a material level monitoring bin 43 disposed below the mixing pipe 42, and a second material level sensor 431 is disposed in the material level monitoring bin 43. The second material level sensor 431 preferably uses a paddle-rotation material level sensor, because the paddle-rotation material level sensor has a mixing and stirring effect on the masterbatch, realizes a third mixing, and increases the mixing of the masterbatch of each component. The second material level sensor 431 is electrically connected to the control mechanism 6. Once the second material level sensor 431 detects a lack of material, the control mechanism 6 controls the device to suspend operation.

[0036] like Figure 1 As shown, the mixing mechanism 4 also includes a screw extruder 44 disposed below the material level monitoring bin 43. The screw extruder 44 includes a screw and a first motor 441, and the first motor 441 is used to drive the screw to rotate. The screw is arranged horizontally and is used to convey the mixed material. The mixed masterbatch is conveyed to the screw with zone heating by the rotating screw for melting and mixing, thereby achieving the fourth mixing.

[0037] like Figure 5 As shown, the mixing mechanism 4 also includes a dynamic mixer 45 connected to the outlet of the screw extruder 44. The dynamic mixer 45 is connected to a second motor 451 for driving the structure in the dynamic mixer 45 to rotate. The inlet of the dynamic mixer 45 is connected to the outlet of the screw extruder 44, and the fourth outlet 452 is arranged at the outlet of the dynamic mixer 45. The melt coming out of the screw extruder 44 enters the dynamic mixer 45 and is stirred evenly, and the fifth mixing is performed to ensure that the color of the stock solution is pure. The spinning device provided in the embodiment of the present application is cleverly arranged to mix five times, which can ensure that the color of the stock solution after deployment is uniform.

[0038] In this embodiment, the spinning manifold 7 is provided with a spinning assembly 71, and the spinning assembly 71 includes a fourth metering pump and a spinneret. The melt discharged from the outlet of the dynamic mixer 45 enters the fourth metering pump in the spinning manifold 7, reaches the spinneret after metering, and spits out polyester filaments with a specific shape, a specific number of roots, and a specific fineness.

[0039] Specifically, Figure 1 As shown, the first feeding mechanism 1 includes a wet material bin 11, a pre-crystallizer 13 and a first drying tower 14 connected in sequence. The wet material bin 11 is provided with a first sight glass 111 for viewing the internal conditions. A wet material discharge metering valve 12 is provided between the wet material bin 11 and the pre-crystallizer 13 for metering the discharge amount of the wet material. The first drying tower 14 is used to dry the spinning main material, and the first drying tower 14 is provided with a second sight glass 141 for viewing the internal conditions. A first discharge valve 15 is provided above the first outlet 17 at the bottom of the first drying tower 14, which can control whether the first feeding mechanism 1 inputs the spinning main material to the mixing mechanism 4. The first metering pump 16 is arranged between the first discharge valve 15 and the first outlet 17. After the first discharge valve 15 is opened, the first metering pump 16 works and can meter the amount of the spinning main material input by the first feeding mechanism 1 to the mixing mechanism 4.

[0040] Specifically, the second feeding mechanism 2 includes a second drying tower 21 for drying red masterbatch, yellow masterbatch or blue masterbatch. A second unloading valve 22 is provided at the bottom of the second drying tower 21 above the second outlet 24, which can control whether the second feeding mechanism 2 inputs red masterbatch, yellow masterbatch or blue masterbatch to the mixing mechanism 4. The second metering pump 23 is arranged between the second unloading valve 22 and the second outlet 24. After the second unloading valve 22 is opened, the second metering pump 23 works, and can meter the amount of red masterbatch, yellow masterbatch and blue masterbatch input by the second feeding mechanism 2 to the mixing mechanism 4.

[0041] In this embodiment, the second metering pump 23 is a volumetric metering pump, which transports accurate volumes of masterbatches into the mixing bin 41 by means of different rotation speeds. The first material level sensor uses an infrared sensor material level meter. Once the single-component masterbatch is out of material before the second metering pump 23, the second metering pump 23 corresponding to the single-component masterbatch will alarm for lack of material, and then the screw will stop running, and the spinning device will stop, thereby protecting the accurate ratio of the components.

[0042] Specifically, once the single-component masterbatch is short of material in front of the second metering pump 23, the first material level sensor transmits a signal to the control mechanism 6. The control mechanism 6 can control the alarm model to be played through the speaker, and use the screen to display the content of the alarm, so that the staff can clearly know which component is short of material. When the short-material alarm appears three times in a row within the specified time, the control mechanism 6 will start the jump stop equipment command to stop the entire spinning device from working, so as to ensure that the color of the produced polyester filament is correct.

[0043] The spectrophotometer 5 in the embodiment of the present application preferably uses a Color-Eye spectrophotometer, which works by measuring reflected light or transmitted light in the entire spectral range and generating a visual curve for describing the color on a specific substrate under specific lighting conditions. The Color-Eye spectrophotometer can accurately analyze colors because it can measure the visible spectrum range from 360nm to 750nm, with each 10nm wavelength as a unit, and provide specular reflection elements and penetration mode measurements. The optical principle used by the Color-Eye spectrophotometer is scattering / 8° (illumination / measurement), and this design enables it to accurately measure various properties of color, including hue, brightness and saturation. The reflectivity curve of the white surface is a straight line with a reflectivity of approximately 90% to 100%. The reflectivity curve of the black surface is flat, with a reflectivity close to 0%. The reflectivity of other colors reaches a peak at the wavelength range of the light that reflects the most. This measurement method is based on the physical properties of color. By analyzing reflected or transmitted light, the spectrophotometer5 can quantify color differences, thereby helping users to perform precise color management and quality control.

[0044] In this embodiment, after the spectrophotometer 5 analyzes and confirms the color number of the target production color sample, the color number information is input into the control mechanism 6. The control mechanism 6 determines (automatically outputs) the feeding ratio of the red, yellow and blue masterbatches according to the color number information, and then controls the rotation speed of the three second metering pumps 23 (volumetric metering pumps) to accurately calculate the feeding amount of each component. For example: the sample color detected by the Color-Eye spectrophotometer is green No. 1, and the control mechanism 6 controls the blue masterbatch and the yellow masterbatch to be mixed at a ratio of 1:1; the sample color detected by the Color-Eye spectrophotometer is green No. 2, and the control mechanism 6 controls the blue masterbatch and the yellow masterbatch to be mixed at a ratio of 1:1.5; the sample color detected by the Color-Eye spectrophotometer is rose No. 1, and the control mechanism 6 controls the red masterbatch, the yellow masterbatch and the blue masterbatch to be mixed at a ratio of 5:4:1; the sample color detected by the Color-Eye spectrophotometer is rose No. 2, and the control mechanism 6 controls the red masterbatch, the yellow masterbatch and the blue masterbatch to be mixed at a ratio of 6:3:1. Other different color matching ratios will not be repeated here.

[0045] like Figure 1As shown, the third feeding mechanism 3 includes a third drying tower 31 for drying the cleaning agent. A third unloading valve 32 is provided at the bottom of the third drying tower 31 above the third outlet 34, which can control whether the third feeding mechanism 3 inputs the cleaning agent to the mixing mechanism 4. The third metering pump 33 is provided between the third unloading valve 32 and the third outlet 34. After the third unloading valve 32 is opened, the third metering pump 33 works, and can meter the amount of the cleaning agent input by the third feeding mechanism 3 to the mixing mechanism 4. When the third feeding mechanism 3 works, the three second unloading valves 22 are closed, the first unloading valve 15 and the third unloading valve 32 are opened, and the spinning main material and the cleaning agent are unloaded according to a predetermined ratio.

[0046] Each time the screw is stopped for material change, the control mechanism 6 controls the three second material discharge valves 22 and the three second metering pumps 23 to be closed, and the first material discharge valve 15, the first metering pump 16, the third material discharge valve 32 and the third metering pump 33 are opened, and the spinning main material and the cleaning agent are discharged according to a predetermined ratio. After the spinning main material mixed with the cleaning agent passes through the screw, the pipeline, the dynamic mixer 45, the spinning box 7, and the fourth metering pump, the dye components in the spinning device are washed away to prepare for the next time to mix different colors of materials. By setting the control mechanism 6 and the third feeding mechanism 3, the spinning device can automatically set the program to clean the pipeline without manual operation, which is convenient and fast.

[0047] In this embodiment, the main component of the cleaning agent is a special resin material, which is specially used for cleaning plastic molding machines and has high cleaning power and low residue. Its low residue is due to its special molecular structure, which makes it have low adhesion to metal and is easily replaced by other resins, thereby reducing the residue. In addition, the cleaning agent is easy to store and use, safe and non-toxic, meets environmental protection requirements, does not react chemically, is non-corrosive, and does not contain harmful substances. This cleaning agent mainly wets, penetrates, and swells the degradation products, black spots, carbon deposits, color residues and other substances on the surface of the screw barrel through the action of its surfactant, thereby achieving a cleaning effect. Sometimes, a compound of surfactant and grinding component (such as glass fiber, calcium carbonate, silica) is used to clean the pipeline by using the infiltration of surfactant and the grinding action of inorganic filler.

[0048] Masterbatch is a new type of special colorant for polymer materials, which is composed of three basic elements: pigment or dye, carrier and additive. The three primary colors masterbatch in the embodiment of the present application is selected from the masterbatch made of ACE dye, which is widely used in the field of plastic coloring and can improve the light resistance, weather resistance, conductivity and antistatic effect of plastics. Therefore, ACE dye is fully capable of being made into masterbatch, which can meet the coloring needs of different polymer products. In addition, ACE dye is a disperse dye, and the particle size of dye molecules is consistent. When mixed and diffused, the rate is uniform and consistent, and the color will not be snatched. It is suitable for the dyeing of fabrics such as knitting, woven polyester, polyester / cotton, polyester / wool, polyester / viscose. Due to the requirements of the dyeing temperature and dyeing time of ACE dye, and its stability at high temperature, ACE dye is very suitable for the preparation of masterbatch. The present invention selects the three primary colors masterbatch prepared by ACE dye, and when mixed and colored, the dispersion rate is consistent, the color will not be snatched, and the color is accurate.

[0049] Specifically, the spinning device may further include a mounting platform 8 for supporting some components of the spinning device.

[0050] It should be noted that, in the description of this specification, the terms "first", "second", etc. are only used for descriptive purposes and to distinguish similar objects. There is no order of precedence between the two, and they cannot be understood as indicating or implying relative importance. In addition, in the description of this specification, unless otherwise specified, the meaning of "plurality" is two or more.

[0051] Any numerical value cited herein includes all values ​​of lower and upper values ​​that increase by one unit from the lower limit to the upper limit, and there is at least a two-unit interval between any lower value and any higher value. For example, if the value of the quantity of a component or a process variable (such as temperature, pressure, time, etc.) is set forth to be from 1 to 90, preferably from 20 to 80, and more preferably from 30 to 70, the purpose is to illustrate that values ​​such as 15 to 85, 22 to 68, 43 to 51, 30 to 32 are also explicitly listed in the specification. For values ​​less than 1, one unit is appropriately considered to be 0.0001, 0.001, 0.01, 0.1. These are merely examples that are intended to be clearly expressed, and it can be considered that all possible combinations of numerical values ​​listed between the lowest value and the highest value are clearly set forth in the specification in a similar manner.

[0052] Unless otherwise indicated, all ranges include the endpoints and all numbers between the endpoints. "About" or "approximately" used with a range applies to both endpoints of the range. Thus, "about 20 to 30" is intended to cover "about 20 to about 30", including at least the specified endpoints.

[0053] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for all purposes. The term "consisting essentially of..." to describe a combination should include the identified elements, ingredients, parts or steps and other elements, ingredients, parts or steps that do not substantially affect the basic novel characteristics of the combination. The use of the terms "comprising" or "including" to describe a combination of elements, ingredients, parts or steps herein also contemplates embodiments that consist essentially of these elements, ingredients, parts or steps. By using the term "may", it is intended to indicate that any attribute described that "may" include is optional.

[0054] Multiple elements, ingredients, parts or steps can be provided by a single integrated element, ingredient, part or step. Alternatively, a single integrated element, ingredient, part or step can be divided into separate multiple elements, ingredients, parts or steps. The disclosure "one" or "an" used to describe an element, ingredient, part or step is not intended to exclude other elements, ingredients, parts or steps.

[0055] It should be understood that the above description is for illustration and not for limitation. Many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of the present teachings should not be determined with reference to the above description, but should be determined with reference to the appended claims and the full scope of equivalents possessed by such claims. For the purpose of comprehensiveness, all articles and references, including disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to be a waiver of the subject matter, nor should it be considered that the inventors did not consider the subject matter to be part of the disclosed inventive subject matter.

Claims

1. A full-color melt chip spinning device capable of automatic identification and accurate color matching, characterized in that: include: A first material conveying mechanism, used for conveying the main spinning material to be colored; The first material feeding mechanism is provided with a first metering pump and a first outlet, and the first metering pump is used to measure the delivery amount of the spinning main material; Three second feeding mechanisms are used to feed red, yellow and blue masterbatches respectively; the second feeding mechanism is provided with a second metering pump and a second outlet, and the three second metering pumps are used to meter the feeding amount of red, yellow and blue masterbatches respectively; a first material level sensor is provided upstream of the second metering pump to detect the material level in front of the second metering pump; A third feeding mechanism is used to feed the cleaning agent; the third feeding mechanism is provided with a third metering pump and a third outlet, and the third metering pump is used to measure the delivery amount of the cleaning agent; A mixing mechanism connected to the first feeding mechanism, the second feeding mechanism and the third feeding mechanism, wherein the mixing mechanism is provided with a feeding port, and the feeding port is connected to the first outlet, the second outlet and the third outlet; the mixing mechanism is provided with a fourth outlet; Spectrophotometer, used to analyze and confirm the color number of the target production color sample; A control mechanism, electrically connected to the spectrophotometer, the first metering pump, the three second metering pumps, the three first material level sensors, and the third metering pump, the control mechanism being used to receive the color number information of the spectrophotometer and control the rotation speeds of the three second metering pumps; A spinning box connected to the fourth outlet.

2. The full-color melt chip spinning device capable of automatic identification and accurate color matching according to claim 1 is characterized in that: The mixing mechanism comprises a mixing bin, the mixing bin is provided with the feeding port, and the feeding port is in an inverted cone shape; a conical portion facing the feeding port is provided in the mixing bin.

3. The full-color melt chip spinning device capable of automatic identification and accurate color matching according to claim 2, characterized in that: The mixing mechanism further comprises a mixing pipe arranged below the mixing bin, wherein a plurality of folding baffles are staggeredly arranged in the mixing pipe.

4. The full-color spectrum melt chip spinning device capable of automatic identification and accurate color matching according to claim 3 is characterized in that: The mixing mechanism also includes a material level monitoring bin arranged below the mixing pipe. A second material level sensor is arranged in the material level monitoring bin. The second material level sensor is electrically connected to the control mechanism. The second material level sensor is a rotary paddle type material level sensor.

5. The full-color spectrum melt chip spinning device capable of automatic identification and accurate color matching according to claim 4 is characterized in that: The mixing mechanism also includes a screw extruder arranged below the material level monitoring bin, the screw extruder includes a screw and a first motor, the first motor is used to drive the screw to rotate, and the screw is horizontally arranged to convey the mixed material.

6. The full-color spectrum melt chip spinning device capable of automatic identification and accurate color matching according to claim 5, characterized in that: The mixing mechanism also includes a dynamic mixer connected to the outlet of the screw extruder, and the dynamic mixer is connected to a second motor; the inlet of the dynamic mixer is connected to the outlet of the screw extruder, and the fourth outlet is arranged at the outlet of the dynamic mixer.

7. The full-color spectrum melt chip spinning device capable of automatic identification and accurate color matching according to claim 1, characterized in that: The first feeding mechanism includes a wet material bin, a pre-crystallizer and a first drying tower which are connected in sequence, the wet material bin is provided with a first sight glass; a wet material unloading metering valve is provided between the wet material bin and the pre-crystallizer; the first drying tower is provided with a second sight glass; a first unloading valve is provided at the bottom of the first drying tower above the first outlet, and the first metering pump is arranged between the first unloading valve and the first outlet.

8. The full-color spectrum melt chip spinning device capable of automatic identification and accurate color matching according to claim 7, characterized in that: The second material feeding mechanism comprises a second drying tower, a second material discharge valve is provided at the bottom of the second drying tower above the second outlet, and the second metering pump is arranged between the second material discharge valve and the second outlet.

9. The full-color spectrum melt chip spinning device capable of automatic identification and accurate color matching according to claim 8, characterized in that: The second metering pump is a volumetric metering pump, and the control mechanism determines the feeding ratio of red, yellow and blue masterbatches according to the color number information, and then controls the rotation speeds of the three volumetric metering pumps.

10. The full-color spectrum melt chip spinning device capable of automatic identification and accurate color matching according to claim 8, characterized in that: The third feeding mechanism includes a third drying tower, a third feeding valve is provided at the bottom of the third drying tower above the third outlet, and the third metering pump is arranged between the third feeding valve and the third outlet; when the third feeding mechanism is working, the three second feeding valves are closed, the first feeding valve and the third feeding valve are opened, and the spinning main material and the cleaning agent are fed in a predetermined proportion.

Citation Information

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