A method and equipment for drawing cotton and polyester blended color-matching slivers

Abstract

The present invention relates to the technical field of textile processing, specifically to a method and equipment for drawing cotton and polyester blended color matching; the drawing equipment here includes a drawing frame, the drawing frame includes a machine body, a feeding unit, a drafting unit, a cleaning unit and a forming unit, the drafting unit includes a plurality of drafting rollers and aprons, all arranged inside the machine body, and the cleaning unit is used to clean the cylindrical workpieces included in the drafting unit; by starting the telescopic module, the baffle plate moves upward to be combined with the corresponding installation groove at the top, and then starting the hot air module to inject hot air into the interior, the temperature of the interior area rises, so that the fluidity of the sizing agent on the surface of the workpiece increases under the action of the rising temperature, and the tightness of combination with impurities decreases. Under the action of suction, the detachment of impurities is accelerated, and more adhered sizing agent is also carried away, improving the cleaning degree of the workpiece and ensuring the processing quality of the sliver.

Description

Technical Field

[0001] The present invention relates to the technical field of textile processing, and specifically relates to a method and equipment for drawing and doubling cotton and polyester blended color matching. Background Art

[0002] The textile industry is a typical physical processing production process. The whole production process is a process of sorting and reorganizing the structure between fibers. Each process in the whole spinning process is "interrelated and inseparable" and continuously related to each other. The drawing and doubling process is the key of the whole spinning process. It plays a strict control role in the CV of the cotton sliver count and the CV of the evenness, and at the same time, it also plays roles such as drafting, doubling, and mixing on the cotton sliver, which can improve the unevenness of the long segment of the fiber sliver and improve the unevenness of the short segment of the sliver, the straightness and parallelism of the fibers, and make the mixing of different quality fibers more uniform.

[0003] In the production and processing process, after the sliver in the textile raw materials is formed into a sliver, it will enter the drawing and doubling machine for drawing and doubling treatment. The feeding unit feeds the sliver in the sliver can into the body of the machine, and at the same time, multiple slivers will enter in parallel; subsequently, the processing parts in the drafting unit will perform drafting and straightening processing on the sliver, and finally, devices such as a condenser in the forming unit will combine the parallel slivers to improve the evenness of the sliver; in the existing textile process, there is a situation where the garment cuttings are recycled, loosened and made into slivers, and then through the mixing between slivers of different colors and different materials, slivers with different color and material requirements are obtained, so as to realize the color adjustment of textile raw materials without excessive dyeing, produce garments with ideal colors, save costs and reduce pollution;

[0004] In the existing production process, during the processing in the drafting unit, various impurities in the sliver are easily attached to various drafting rollers in the drafting unit, affecting the normal operation. Therefore, in the existing technology, wiping structures such as roller wiper or rotary flannelette sleeve are often set to directly contact the surface of the drafting roller to clean the surface of the drafting roller; however, in the actual production process, the staff found that because in the preparation process of the polyester part in the sliver, in order to increase the spinnability of the polyester fiber, an oil agent that plays a role in smoothing and antistatic is added during the polyester factory process. And in the carding stage, because the sliver of this part of polyester rubs on the coiling disk, the oil agent in it will gradually concentrate on the surface of the sliver, which will also cause the combination of various impurities and the surface oil agent, and even caking and hardening, making the combination of impurities more compact. In this way, it is difficult to effectively clean only through the wiping action, and such caked impurity blocks will also affect the drafting and straightening processing of the incoming sliver during the production process, and even fall off and enter the sliver, affecting the quality of the sliver. Summary of the Invention

[0005] In order to make up for the deficiencies of the prior art, the present invention proposes a method and equipment for drawing cotton and polyester blended color matching to solve the above technical problems.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: A cotton and polyester blended color matching drawing equipment described in the present invention includes a drawing frame. The drawing frame includes a machine body, a feeding unit, a drafting unit, a cleaning unit and a forming unit. The drafting unit includes a plurality of drafting rollers and aprons, all of which are arranged inside the machine body. The cleaning unit includes an upper suction hopper and a lower suction hopper, which are respectively installed inside the machine body and located on the upper side and the lower side of the drafting unit for cleaning the cylindrical workpieces included in the drafting unit. The opening positions of the upper suction hopper and the lower suction hopper both cover the part of the machine body where the drafting unit is arranged;

[0007] Baffles are slidably installed on both sides of the lower suction hopper. A telescopic module is installed at the bottom of the baffle, and installation grooves are provided at the positions corresponding to the tops of the baffles on both sides of the upper suction hopper;

[0008] The cleaning unit further includes a hot air module. The hot air module includes a hot air blower for providing hot air to the part where the drafting unit is located to clean the workpieces.

[0009] Preferably, the hot air module includes:

[0010] An air supply chamber, which is arranged inside the baffle, and the inside of the air supply chamber is communicated with a hot air blower installed outside the machine body through an air supply pipeline;

[0011] Air supply grooves, which are uniformly arranged on one side of the side wall of the air supply chamber close to the drafting unit, and the air supply grooves are communicated with the inside of the air supply chamber.

[0012] Preferably, the cleaning unit further includes a cleaning arc plate, which is installed at a position corresponding to the workpiece inside the machine body.

[0013] Cleaning rollers, which are evenly rotatably installed in the installation grooves on the cleaning arc plate close to the workpiece;

[0014] Scraping blades, which are fixedly installed at the positions on the side walls of the installation grooves corresponding to the cleaning rollers, and the ends of the scraping blades are in contact with the surfaces of the corresponding cleaning rollers;

[0015] Link rods, adjacent cleaning arc plates are connected by link rods, and the link rods are connected to the ends of telescopic devices installed on the inner wall of the machine body.

[0016] Preferably, a debris removal groove is provided on the side wall of the installation groove, the scraper is located on the side wall of the debris removal groove, and the contact portion between the scraper and the cleaning roller faces the debris removal groove.

[0017] Preferably, a No. 1 cleaning rod is evenly provided at the end of the scraper blade, the end of the No. 1 cleaning rod is in contact with the surface of the cleaning roller, and the end of the No. 1 cleaning rod is bent in a direction away from the central axis of the cleaning roller.

[0018] Preferably, a cleaning sheet is provided at a position of the side wall of the impurity removal groove facing the scraper, and a second cleaning rod is evenly provided at a position above the first cleaning rod at the end of the cleaning sheet, and the width of the gap between the second cleaning rods is greater than the width of the first cleaning rod;

[0019] A limiting rod is provided on the upper surface of the cleaning sheet, the end of the limiting rod is located above the second cleaning rod, and the width of the limiting rod is greater than the width of the gap between the first cleaning rods.

[0020] Preferably, the outer surface of the cleaning roller is provided with a plurality of arc-shaped protrusions, the arc-shaped protrusions are evenly distributed around the central axis of the cleaning roller, and the number is not less than three; the arc-shaped protrusions are provided with an arc-shaped groove on one side close to the end of the No. 1 cleaning rod.

[0021] Preferably, an air inlet is provided on a side of the cleaning arc plate close to the baffle, the air inlet is conical, and a large end of the air inlet is located on a side close to the baffle.

[0022] A cotton and polyester blended color matching drawing method, the drawing method is applicable to the above-mentioned drawing equipment, and the specific steps of the drawing method are:

[0023] S1: First, the cotton raw material and the polyester raw material are passed through a strip making machine to prepare strips of different materials and colors;

[0024] S2: Then, multiple slivers of different materials and colors that have been processed by sliver making are fed into the drawing equipment according to the formula ratio. Then, the slivers enter under the action of the feeding unit and are stretched and straightened under the action of the processing parts in the drafting unit;

[0025] S3: While the drafting and straightening process is in progress, the cleaning arc plate in the cleaning unit moves downward to contact the surface of the workpiece in the drafting unit, and the impurities on the surface of the workpiece are cleaned by the action of the cleaning roller through adhesion, ensuring that the workpiece remains clean during the sliver processing;

[0026] S4: After the final slivers are initially gathered by the buncher in the sliver forming unit, they enter the sliver guide tube, and then are condensed into slivers through the trumpet head. Finally, they are compressed by the pressing roller, and then the combined slivers are coiled by the coiler and placed in the output sliver can for collecting the processed products.

[0027] The beneficial effects of the present invention are as follows:

[0028] 1. For a cotton and polyester blended color matching drawing method and drawing equipment according to the present invention, by starting the telescopic module, the baffle moves upward to combine with the corresponding installation groove at the top, and then starting the hot air module to inject hot air into the interior, the temperature of the interior area increases. The fluidity of the oil agent on the surface of the workpiece increases under the action of the increased temperature, and the possible lumps will also melt. The tightness of the combination of impurities therein decreases. Thus, under the action of air extraction, the detachment of impurities is accelerated, and more adhered oil agent is also carried away, further improving the cleaning degree of the workpiece and ensuring the processing quality of the sliver.

[0029] 2. For a cotton and polyester blended color matching drawing method and drawing equipment according to the present invention, through the action of the baffle, on the one hand, it blocks the scattering of impurities on the workpiece under the action of the flowing air current and entering other tight parts of the machine body to cause failures, and on the other hand, it can also prevent the possible impurities in the external area from being sucked in under the action of air extraction, resulting in the dust and impurities in the external area being lifted under the action of the air current and affecting the working environment of the workers; in addition, the baffle here can be prepared from heat-insulating materials, such as high-temperature resistant rubber, etc. In this way, heat loss can be avoided, and the flowing heat can also be prevented from causing too high temperature in other areas and affecting the operation of electronic equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below in conjunction with the drawings and embodiments.

[0031] Figure 1 is the flowchart of the drawing method in the present invention;

[0032] Figure 2 is the three-dimensional view of the drawing equipment in the present invention;

[0033] Figure 3 is the cross-sectional view of the drawing equipment in the present invention;

[0034] Figure 4 is Figure 3 the partial enlarged view at A in

[0035] Figure 5 is Figure 4 the partial enlarged view at B in

[0036] Figure 6 is Figure 5 the partial enlarged view at C in

[0037] Figure 7 is the three-dimensional view of the baffle-related structure in the present invention;

[0038] Figure 8It is a three-dimensional view of the cooperation between the cleaning arc plate and the workpiece in the present invention;

[0039] Figure 9 It is Figure 8 The partial enlarged view at position D in

[0040] In the figure: machine body 1, feeding unit 2, drafting unit 3, workpiece 31, cleaning unit 4, upper suction hopper 41, lower suction hopper 42, baffle 43, telescopic module 431, installation groove 432, hot air module 44, air supply cavity 441, air supply holes 442, air supply pipe 443, cleaning arc plate 45, cleaning roller 451, scraping blade 452, connecting rod 453, impurity removal groove 454, first cleaning rod 455, arc-shaped convex block 456, arc-shaped groove 457, cleaning piece 458, second cleaning rod 459, air inlet 46, roving forming unit 5. Specific embodiments

[0041] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0042] Embodiment 1:

[0043] A cotton and polyester blended color matching drawing frame device, as shown in the accompanying drawings of the specification Figure 2-7 shown, including a drawing frame. In the actual production process, a roving frame, the drawing frame includes a machine body 1, a feeding unit 2, a drafting unit 3, a cleaning unit 4 and a roving forming unit 5. The drafting unit 3 includes a plurality of drafting rollers and aprons, all arranged inside the machine body 1. The cleaning unit 4 includes an upper suction hopper 41 and a lower suction hopper 42, which are respectively installed inside the machine body 1 and located on the upper and lower sides of the drafting unit 3, and are used to clean the cylindrical workpieces 31 included in the drafting unit 3. The cylindrical workpieces 31 here are cylindrical structures such as aprons and drafting rollers in the drafting unit 3, which are usually used for drafting and straightening the incoming sliver;

[0044] Of course, in order to carry out more comprehensive processing, the scope of the workpiece 31 can be expanded to the feeding rollers used for feeding in the feeding unit 2, which are also used for sliver processing and need to be cleaned; the opening positions of the upper suction hopper 41 and the lower suction hopper 42 can fully cover the part of the machine body 1 where the drafting unit 3 is arranged, and both the upper suction hopper 41 and the lower suction hopper 42 can collect and process the dropped flying flowers, dust and other impurities. Their specific structures and working principles belong to the prior art and will not be described in detail here;

[0045] During the production and processing process, after the sliver in the textile raw materials is formed in the sliver forming process, it will enter the drawframe for drawframe processing. The feeding unit 2 feeds the sliver in the sliver can into the interior of the machine body 1, and multiple slivers will enter in parallel at the same time. Subsequently, the processing parts 31 in the drafting unit 3 will perform drafting and straightening processing on the sliver. Finally, devices such as the condenser in the roving unit 5 will combine the parallel slivers to improve the evenness of the sliver. In the existing textile technology, there is a process of recycling garment scraps, loosening and making them into slivers, and then mixing slivers of different colors and materials to obtain slivers with different color and material requirements, so as to adjust the color of the textile raw materials without excessive dyeing, produce garments with the desired color, save costs and reduce pollution.

[0046] In the existing production process, during the processing of the processing parts 31 in the drafting unit, various impurities in the sliver are likely to adhere to the processing parts 31, affecting the normal operation of the processing parts 31. Therefore, in the existing technology, wiping structures such as roller wiper or rotary flannelette sleeve are often set to directly contact the surface of the processing parts 31 to clean the surface of the processing parts 31. However, in the actual production process, the staff found that in the preparation process of the polyester part in the sliver, in order to increase the spinnability of the polyester fiber, an oil agent that plays a role in smoothing and antistatic is added during the polyester factory process. In the carding stage, because the sliver of this part of polyester rubs on the coiling disc, the oil agent will gradually concentrate on the surface of the sliver, which will also cause the combination of various impurities and the surface oil agent, and even caking and hardening, making the impurities combine more tightly. In this way, it is difficult to effectively clean only through the wiping effect, and such caked impurity blocks will also affect the drafting and straightening processing of the incoming sliver during the production process, and even fall off and enter the sliver, affecting the quality of the sliver.

[0047] Therefore, in order to effectively solve the above problems, the cleaning unit 4 is further improved. Baffles 43 are slidably installed on both sides of the lower suction hopper 42, and a telescopic module 431 is installed at the bottom of the baffle 43. Here, the telescopic module 431 can be a device such as an electric telescopic rod that can play a role in telescopic pushing. And installation grooves 432 are provided at the corresponding positions on both sides of the upper suction hopper 41 and the top of the baffle 43. In this way, after the telescopic module 431 is controlled to start by an external controller, it can push the baffle 43 to move upward, so that the baffles 43 on both sides of the lower suction hopper 42 move upward and combine with the corresponding installation grooves 432 at the top, making the area between the upper suction hopper 41 and the lower suction hopper 42 in an approximately closed state. And the cleaning unit 4 also includes a hot air module 44. The hot air module 44 includes a hot air blower to provide hot air to the location of the drafting unit 3 to clean the processing parts 31.

[0048] Specific work flow: multiple slivers of different materials and colors that have been processed by sliver making are fed into the drawing equipment according to the formula ratio, and then the slivers enter under the action of the feeding unit 2, and are stretched and straightened under the action of the processing piece 31 in the drafting unit 3, and then the slivers are initially gathered by the buncher in the sliver forming unit 5, enter the sliver guide tube, and then condense into slivers through the trumpet head, and finally after being pressed by the pressing roller, the sliver coiler coils the combined slivers into the output sliver can for collecting the processed products;

[0049] In this process, during the processing of the sliver in the drafting stage, impurities such as flying flowers, short fibers, dust, etc. on the sliver will adhere to the contacting workpiece 31; in order to avoid affecting the processing of the sliver, the upper suction hopper 41 and the lower suction hopper 42 on the upper and lower sides can be started by external control, so that some impurities that are easy to detach fall off under the adsorption effect through the suction effect, and are sucked into the upper suction hopper 41 and the lower suction hopper 42 for processing; in addition, after working for a period of time, when the impurities that adhere more tightly to the workpiece 31 accumulate to a certain extent, the input of the sliver is stopped in the processing interval, and the telescopic operation is started. Module 431 causes the baffle 43 to move upward and combine with the corresponding mounting groove 432 at the top, so that the area between the upper suction hopper 41 and the lower suction hopper 42 is in a nearly closed state; then, the hot air module 44 is started to inject hot air into the interior, so that the temperature of the internal area increases, and the fluidity of the oil agent on the surface of the workpiece 31 increases under the effect of the temperature increase, and the agglomerates that may be formed will also melt, and the tightness of the impurities in it will decrease. In this way, under the effect of exhaust, the impurities are accelerated to separate, and more adhered oil agents are taken away, further improving the cleaning degree of the workpiece 31 and ensuring the processing quality of the strips;

[0050] And through the function of the baffle 43, on the one hand, the impurities on the workpiece 31 are blocked from being scattered under the action of the flowing airflow, so as to prevent the impurities from entering other tight parts of the body 1 and causing malfunctions. On the other hand, it can also prevent the impurities that may exist in the external area from being sucked in under the action of the exhaust, causing the dust and impurities in the external area to be raised under the action of the airflow, affecting the working environment of the workers; in addition, the baffle 43 here can be made of heat-insulating materials, such as high-temperature resistant rubber, etc., so as to avoid heat loss and prevent the flowing heat from causing the temperature of other areas to be too high, affecting the operation of electronic equipment in other parts;

[0051] There are many possible implementations of the hot air module 44 here, for example, directly introducing hot air through a pipe connected to an external hot air blower. Any implementation that can achieve the functions described above and be successfully applied to the drawing frame can be applicable to the present application.

[0052] Embodiment 2:

[0053] Based on Embodiment 1, as shown in the accompanying drawings of the specification Figure 4 and Figure 7 show, a specific implementation of the hot air module 44 is provided here. Specifically, the hot air module 44 includes a air supply chamber 441, and the air supply chamber 441 is arranged inside the baffle 43. And the inside of the air supply chamber 441 is communicated with a hot air blower installed outside the machine body 1 through an air supply pipe 443; air supply holes 442 are evenly arranged on one side of the side wall of the air supply chamber 441 close to the drafting unit 3, and the air supply holes 442 are communicated with the inside of the air supply chamber 441. In this way, through the action of the air supply chamber 441 and the air supply holes 442, the workpieces 31 located inside the closed area are uniformly affected by hot air, thereby improving the cleaning efficiency of the impurities on the workpieces 31.

[0054] Specific working process: Based on the specific working process of Embodiment 1, when it is necessary to clean the impurities adhered to the workpiece 31, the baffle 43 moves upward so that the side of the baffle 43 close to the drafting unit 3 faces the area where the workpiece 31 is located. In this way, the air supply holes 442 on the baffle 43 also face the area where the workpiece 31 is located. By starting the hot air module 44, the hot air blower outside the machine body 1 is started, and the hot air enters the air supply chamber 441 through the air supply pipe 443 and flows out through the evenly distributed air supply holes 442. Because the air supply holes 442 are evenly distributed and the area covered by them completely includes the area where the workpiece 31 is located, through the action of the air supply holes 442, the hot air can be dispersed and evenly act on different parts of the workpiece 31, so that different parts of the workpiece 31 are subjected to more uniform hot air impact and heating effects, so that the mixture of oil agent and impurities that may exist on the surface of the workpiece 31 melts under the heating effect and detaches from the workpiece 31 under the impact of the air flow, further improving the cleaning efficiency of the workpiece 31.

[0055] Embodiment 3:

[0056] Based on Embodiment 1, as shown in the accompanying drawings of the specification Figure 4-6 and Figure 8As shown, the cleaning unit 4 further includes a cleaning arc plate 45, which is installed at a position inside the machine body 1 corresponding to the workpiece 31; the cleaning rollers 451 are evenly and rotatably installed on the installation grooves 432 at the part of the cleaning arc plate 45 close to the workpiece 31; the scraping blades 452 are installed at the positions on the side walls of the installation grooves 432 corresponding to the cleaning rollers 451, and the ends of the scraping blades 452 are in contact with the surfaces of the corresponding cleaning rollers 451; adjacent cleaning arc plates 45 are connected by connecting rods 453, so that adjacent cleaning arc plates 45 form a whole. The connecting rod 453 is connected to the end of a telescopic device installed on the inner wall of the machine body 1. The telescopic device here can be a related device with a telescopic function such as an electric telescopic rod, and the telescopic end passes through the side wall of the upper suction hopper 41 or the lower suction hopper 42 close to it and is slidably connected, and can drive the connected cleaning arc plates 45 to move up and down as a whole;

[0057] In the practical process of the wiping and cleaning technical solution in the prior art, it is found that when the wiping part contacts the surface of the workpiece 31, due to the action of the oil agent, the impurities adhere relatively tightly and are difficult to clean. Therefore, the impurities accumulate in the gap and are turned over with the wiping action, which is likely to scratch the surface of the contacted workpiece 31. Therefore, in this application, the impurities on the surface of the workpiece 31 are cleaned by the adhesion action of the cleaning rollers 451, realizing a more comprehensive cleaning effect on the surface of the workpiece 31.

[0058] Specific working process: On the basis of the specific working process of Embodiment 1, when it is necessary to clean the impurities accumulated on the surface of the workpiece 31, start the telescopic device connected to the cleaning arc plate 45, so that the telescopic device drives the cleaning arc plate 45 to move towards the direction close to the workpiece 31 until the cleaning rollers 451 on the cleaning arc plate 45 contact the surface of the workpiece 31, and at this time the telescopic device stops moving; as the workpiece 31 rotates itself during the processing, it drives the contacted cleaning rollers 451 to rotate. With the relative rotation between the workpiece 31 and the cleaning rollers 451, the oil agent and impurity mixture that may exist on the surface of the workpiece 31 adheres to the cleaning rollers 451 during the contact process; then as the cleaning rollers 451 rotate, the surface where the adhered impurities are located contacts the scraping blades 452, and the impurities are scraped off under the action of the scraping blades 452. Repeating this way, the impurities on the surface of the workpiece 31 are effectively cleaned; and different from the possible scratches on the surface of the workpiece 31 caused by relative friction during the wiping and cleaning process in the prior art, the relative friction between the workpiece 31 and the cleaning rollers 451 in this application is less, effectively reducing the possible scratches on the surface of the workpiece 31.

[0059] Embodiment 4:

[0060] On the basis of Embodiment 3, as shown in the accompanying drawings of the specification Figure 4-6 and Figure 8As shown, a cleaning slot 454 is provided on the side wall of the installation slot 432, and the cleaning slot 454 is a through slot that penetrates the cleaning arc plate 45, so that the gap area between the workpiece 31 and the cleaning arc plate 45 can communicate with the outside through the cleaning slot 454; the scraping blade 452 is located on the side wall of the cleaning slot 454, and the contact part between the scraping blade 452 and the cleaning roller 451 faces the cleaning slot 454.

[0061] Specific working process: On the basis of the specific working process of Embodiment 3, when the upper suction hopper 41 starts to work, at this time, the cleaning slot 454 facing the upper suction hopper 41 is subjected to a pumping action, so that the air in the gap area between the workpiece 31 and the cleaning arc plate 45 is pumped in the direction of the upper suction hopper 41 through the cleaning slot 454; and the scraping blade 452 is located on the side wall of the cleaning slot 454, and during the working process of the scraping blade 452, the impurities on the workpiece 31 are scraped off, and under the action of the air flow in the cleaning slot 454, the impurities are further accelerated to break away from the scraping blade 452 and are carried into the upper suction hopper 41 with the air flow for effective treatment. In this way, the cleaning efficiency of the impurities on the scraping blade 452 is accelerated, and it is also ensured that the impurities scraped off from the workpiece 31 can be effectively treated; when the lower suction hopper 42 starts to work, the working process and technical effects of the cleaning arc plate 45 that cooperates with it are basically the same.

[0062] Embodiment 5:

[0063] On the basis of Embodiment 4, as shown in the accompanying drawings of the specification Figure 4-6 and Figure 8 as shown, a first cleaning rod 455 is evenly provided at the end of the scraping blade 452, the end of the first cleaning rod 455 is in contact with the surface of the cleaning roller 451, and the end of the first cleaning rod 455 is bent in a direction away from the central axis of the cleaning roller 451; the uniformly arranged first cleaning rods 455 here are in a comb shape and can effectively scrape off the impurities on the cleaning roller 451.

[0064] Specific working process: On the basis of the specific working process of Embodiment 4, the surface material of the cleaning roller 451 is set to be an oil-loving material, such as polypropylene fiber and other materials; in this way, during the contact with the workpiece 31, it can effectively adsorb the oil agent that may exist on the surface of the workpiece 31, and after the surface of the cleaning roller 451 adsorbs the oil agent, it has a stronger adsorption effect on the impurities on the workpiece 31, which can more effectively ensure the cleaning of the impurities on the surface of the workpiece 31; and the first cleaning rod 455 with a comb shape at the end of the scraping blade 452 can effectively clean the impurities on the surface of the cleaning roller 451, and will not scrape off too much of the oil agent adsorbed on the surface of the cleaning roller 451, avoiding the adhesion of the oil agent on the first cleaning rod 455 and being unfavorable for the detachment of the impurities; for the part of the surface of the cleaning roller 451 that can adsorb the oil agent, it is replaced regularly after working for a period of time to ensure its normal operation.

[0065] Embodiment six:

[0066] Based on the fifth embodiment, as shown in the accompanying drawings of the specification Figure 4-6 and Figure 8 As shown, the outer surface of the cleaning roller 451 is provided with a plurality of arc-shaped protrusions 456, which are evenly distributed around the central axis of the cleaning roller 451, and the number of the arc-shaped protrusions 456 is not less than three; the arc-shaped protrusions 456 are provided with an arc-shaped groove 457 on one side close to the end of the No. 1 cleaning rod 455; the scraper 452 is rotatably connected to the side wall of the impurity removal groove 454, and a torsion spring is installed at the rotating connection position.

[0067] Specific working process: On the basis of the specific working process of Example 5, because the oil-absorbing part of the surface of the cleaning roller 451 is made of elastic material, and the arc-shaped protrusion 456 is also made of elastic material, the arc-shaped protrusion 456 will not affect the full contact between other parts of the cleaning roller 451 and the surface of the workpiece 31; and after the surface of the cleaning roller 451 is fully adhered to impurities, during the contact process with the scraper 452, because the scraper 452 is rotatably connected, during the contact process, the No. 1 cleaning rod 455 at the end of the scraper 452 is driven by the contacting surface of the cleaning roller 451 to move away from the impurity removal groove 454, and at the same time, the end of the No. 1 cleaning rod 455 slides on the surface of the cleaning roller 451 and scrapes off the surface impurities. Due to the adhesion of the oil agent, the scraped impurities at this time move with the scraper 452, but have not completely separated from the surface of the cleaning roller 451; until the No. 1 cleaning rod 455 The end of the cleaning rod 455 contacts and is blocked by the end of the arc-shaped protrusion 456, and the end of the No. 1 cleaning rod 455 and the scraped impurities are brought into the arc-shaped groove 457 provided on one side of the arc-shaped protrusion 456. As the cleaning roller 451 continues to rotate, until the scraper 452 rotates to the limit position, the end of the No. 1 cleaning rod 455 and the arc-shaped protrusion 456 rotate relative to each other, at this time the scraper 452 violently resumes rotation, and at the same time, the end of the No. 1 cleaning rod 455 fully scrapes the impurities accumulated in the arc-shaped groove 457, and in the violent resumption of rotation, the impurities are taken away from the surface of the cleaning roller 451, further ensuring the cleaning of the impurities on the cleaning roller 451; and in the violent rotation of the scraper 452, under the action of vibration, the separation between the impurities and the No. 1 cleaning rod 455 is accelerated, so that the impurities can be effectively collected and cleaned through the impurity removal groove 454 under the action of exhaust.

[0068] Embodiment seven:

[0069] Based on the fifth embodiment, as shown in the accompanying drawings of the specification Figure 4-6 and Figure 8As shown in the figure, a cleaning piece 458 is provided at a position on the side wall of the impurity removal tank 454 facing the scraping piece 452. At the end of the cleaning piece 458, second cleaning rods 459 are evenly provided above the first cleaning rod 455. The evenly arranged second cleaning rods 459 also present a comb-like shape, and the width of the gap between the second cleaning rods 459 is greater than the width of the first cleaning rod 455.

[0070] Specific working process: On the basis of the specific working process of Embodiment Six, during the process of the scraping piece 452 rotating sharply upward and returning, the position of the scraping piece 452 coincides with the position of the cleaning piece 458. At this time, the first cleaning rod 455 at the end of the scraping piece 452 is staggered from the second cleaning rod 459 at the end of the cleaning piece 458. The first cleaning rod 455 passes through the gap between the second cleaning rods 459. During the process of mutual intersection, the impurities that may exist in the gap of the first cleaning rod 455 are pushed out by the second cleaning rod 459, so that the first cleaning rod 455 is cleaned more effectively, ensuring that the first cleaning rod 455 can function normally during the contact with the cleaning roller 451; after the end of the scraping piece 452 rotates upward to the limit position, it returns to its original position under the action of the torsion spring and normally plays a cleaning role.

[0071] Embodiment Eight:

[0072] On the basis of Embodiment Eight, as shown in the accompanying drawings of the specification Figure 4-6 and Figure 8 As shown, an air inlet 46 is provided on one side of the cleaning arc plate 45 close to the baffle 43. The air inlet 46 is conical, and the large end of the air inlet 46 is located on the side close to the baffle 43.

[0073] Specific working process: On the basis of the specific working process of Embodiment Seven, because the air in the gap area between the workpiece 31 and the cleaning arc plate 45 is sucked upward in the direction of the air suction hopper 41 through the impurity removal tank 454, air will be supplemented to the gap part through the air inlet 46. Through the action of the conical horn-shaped air inlet 46, more hot air from the side of the baffle 43 is fully injected into the gap part, making the air flow rate in the gap part increase, and being fully heated under the action of the hot air, which is beneficial to the detachment of impurities on the workpiece 31. Furthermore, the impurities on the cleaning roller 451 and the scraping piece 452 fall off under the flowing air current and are effectively collected along with the air current, ensuring the cleanliness of the workpiece 31 and the processing quality of the sliver.

[0074] Embodiment Nine:

[0075] A method for cotton and polyester blended color matching drawing, as Figure 1 shown, the drawing equipment in the drawing method here adopts the drawing equipment in the above Embodiments One to Eight, and the specific steps of the drawing method are as follows:

[0076] S1: First, the cotton raw material and the polyester raw material are passed through a strip making machine to prepare strips of different materials and colors;

[0077] S2: Then, the multiple slivers of different materials and colors that have been processed by sliver making are fed into the drawing equipment according to the formula ratio, and then the slivers enter under the action of the feeding unit 2, and are stretched and straightened under the action of the processing piece 31 in the drafting unit 3;

[0078] S3: While the drafting and straightening process is being carried out, the cleaning arc plate 45 in the cleaning unit 4 moves downward to contact the surface of the workpiece 31 in the drafting unit 3, and the impurities on the surface of the workpiece 31 are cleaned by the action of the cleaning roller 451 through adhesion, so as to ensure that the workpiece 31 is kept clean when processing the strips;

[0079] S4: After the final slivers are initially gathered by the buncher in the sliver forming unit 5, they enter the sliver guide tube, are condensed into slivers by the trumpet head, and are finally compressed by the compression roller. The combined slivers are then coiled by the sliver coiler and placed in the output sliver can for collecting the processed products.

[0080] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A cotton and polyester blended color-matching drawing equipment, including a drawing frame. The drawing frame includes a machine body (1), a feeding unit (2), a drafting unit (3), a cleaning unit (4) and a forming unit (5). The drafting unit (3) includes a plurality of cylindrical processing parts (31), all arranged inside the machine body (1) for drafting and straightening the incoming sliver; the cleaning unit (4) includes an upper suction hopper (41) and a lower suction hopper (42), which are respectively installed inside the machine body (1) and located above and below the drafting unit (3) for cleaning the cylindrical processing parts (31) included in the drafting unit (3). It is characterized in that: The opening positions of the upper suction hopper (41) and the lower suction hopper (42) both cover the part inside the machine body (1) where the drafting unit (3) is arranged; On both sides of the lower suction hopper (42), baffles (43) are slidably installed. A telescopic module (431) is installed at the bottom of the baffle (43), and installation grooves (432) are provided at the positions corresponding to the tops of the baffles (43) on both sides of the upper suction hopper (41); The cleaning unit (4) further includes a hot air module (44). The hot air module (44) includes a hot air blower for providing hot air to the part where the drafting unit (3) is located to clean the workpiece (31); The cleaning unit (4) further includes a cleaning arc plate (45). The cleaning arc plate (45) is installed at the part inside the machine body (1) corresponding to the workpiece (31); Cleaning rollers (451) are evenly and rotatably installed in the installation grooves (432) at the part of the cleaning arc plate (45) close to the workpiece (31); Scraping blades (452) are fixedly installed at the positions on the side walls of the installation grooves (432) corresponding to the cleaning rollers (451), and the ends of the scraping blades (452) are in contact with the surfaces of the corresponding cleaning rollers (451); Connecting rods (453) are connected between adjacent cleaning arc plates (45). The connecting rods (453) are connected to the ends of telescopic devices installed on the inner wall of the machine body (1); Impurity removal grooves (454) are provided on the side walls of the installation grooves (432). The impurity removal grooves (454) are through grooves that penetrate the cleaning arc plate (45). The scraping blades (452) are located on the side walls of the impurity removal grooves (454), and the contact parts between the scraping blades (452) and the cleaning rollers (451) are directly opposite the impurity removal grooves (454); An air inlet (46) is provided on the side of the cleaning arc plate (45) close to the baffle (43). The air inlet (46) is conical, and the large end of the air inlet (46) is located on the side close to the baffle (43); One - end cleaning rods (455) are evenly provided at the ends of the scraping blades (452). The ends of the one - end cleaning rods (455) are in contact with the surfaces of the cleaning rollers (451), and the ends of the one - end cleaning rods (455) are bent in the direction away from the central axis of the cleaning rollers (451); 2. The cotton and polyester blended color matching drawing frame device according to claim 1, characterized in that: The hot air module (44) includes: An air supply chamber (441) is arranged inside the baffle (43), and the inside of the air supply chamber (441) is communicated with a hot air blower installed outside the machine body (1) through an air supply pipe (443); Air supply holes (442) are evenly arranged on the side wall of the air supply chamber (441) close to the drafting unit (3), and the air supply holes (442) are communicated with the inside of the air supply chamber (441).

3. A cotton and polyester blended color matching drawing frame device according to claim 2, characterized in that: The outer surface of the cleaning roller (451) is provided with a plurality of arc-shaped protrusions (456), and the arc-shaped protrusions (456) are evenly distributed around the central axis of the cleaning roller (451), and the number of the arc-shaped protrusions (456) is not less than three; and an arc-shaped groove (457) is provided on one side of the arc-shaped protrusions (456) close to the end of the No. 1 cleaning rod (455).

4. A cotton and polyester blended color-matching drawing frame device according to claim 3, characterized in that: A cleaning sheet (458) is provided at a position of the side wall of the impurity removal groove (454) directly facing the scraper (452), and a second cleaning rod (459) is evenly provided at a position above the first cleaning rod (455) at the end of the cleaning sheet (458), and the width of the gap between the second cleaning rods (459) is greater than the width of the first cleaning rod (455).

5. A method for drawing cotton and polyester blended color matching, characterized in that, The drawing method is applicable to the drawing equipment described in any one of claims 1 to 4 above, and the specific steps of the drawing method are: S1: First, the cotton raw material and the polyester raw material are passed through a strip making machine to prepare strips of different materials and colors; S2: Subsequently, a plurality of slivers of different materials and colors that have been processed by sliver making are fed into the drawing equipment according to the formula ratio, and then the slivers enter under the action of the feeding unit (2), and are stretched and straightened under the action of the processing piece (31) in the drafting unit (3); S3: While the drafting and straightening process is being carried out, the cleaning arc plate (45) in the cleaning unit (4) moves downward to contact the surface of the workpiece (31) in the drafting unit (3), and the impurities on the surface of the workpiece (31) are cleaned by the action of the cleaning roller (451) through adhesion, so as to ensure that the workpiece (31) remains clean when processing the strips; S4: Finally, the slivers are initially gathered by the buncher in the sliver forming unit (5), enter the sliver guide tube, and are condensed into slivers by the trumpet head. Finally, they are compressed by the compression roller, and then the combined slivers are coiled by the coiler and placed in the output sliver can for collecting the processed products.

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