Textile cotton yarn drying device and method

Abstract

The textile cotton yarn drying device comprises a drying box (10), a conveying roller set (30) is arranged at the position, corresponding to a drying plate (60), in the drying box (10), and the conveying roller set (30) comprises a first conveying roller (31) located on the input side of the drying plate (60) and a second conveying roller (32) located on the output side of the drying plate (60). The first conveying roller (31) and the second conveying roller (32) are configured to convey the cotton yarn at the same rotating speed, so that when the cotton yarn is dried in the drying plate (60), constant tension conveying is kept, although the moisture of the cotton yarn is reduced along with drying in the conveying process, the conveying roller set (30) conveys the cotton yarn at the constant tension, and the moisture content of the cotton yarn is reduced along with drying. The problem that the conveying speed is gradually increased or the pulling force is gradually increased in the cotton yarn drying process can be solved, and therefore the problem that the performance of the dried cotton yarn is reduced due to the pulling force of the cotton yarn is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of cotton yarn textile, and specifically relates to a textile cotton yarn drying device and a drying method. Background Art

[0002] The formation of textile cotton yarn begins with the picking and preliminary processing of cotton. After a series of fine processes such as ginning, cleaning, carding, drawing, roving and spun yarn twisting, it is finally transformed into high-quality yarn. Among them, the washing step is indispensable. It effectively removes impurities and residual chemicals, improves the feel and comfort of the yarn, ensures bright colors and high color fastness, thereby comprehensively improving the quality of cotton yarn and providing high-quality raw materials for the textile market.

[0003] Cotton yarn needs to be dried after washing. Cotton yarn is usually dried in a drying box and dried by hot air flow while being pulled. However, due to the difference in tensile properties between cotton yarn in a hydrated state and in a dry state, when the cotton yarn is in a wet state, water molecules will penetrate into the gaps between the fibers and increase the contact area and friction between the fibers, thereby improving its tensile strength to a certain extent. As the cotton yarn dries, the pulling force on the cotton yarn remains unchanged, and there is slippage, delamination, and increased brittleness between the fibers of the cotton yarn, which leads to a decrease in the performance of the cotton yarn. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention creatively adopts a textile cotton yarn drying device and drying method to partially solve the problems raised in the above background technology.

[0005] The technical solution adopted is as follows: In the first aspect of the present invention, a textile cotton yarn drying device is proposed, comprising: A drying box, wherein a feed port and a discharge port are respectively provided on both sides of the drying box, and a first conveying roller group and a second conveying roller group for conveying cotton yarn are respectively provided on the outer side of the drying box corresponding to the feed port and the discharge port; A guide roller group is arranged inside the drying box at a side corresponding to the feed inlet, and is used to guide the cotton yarn; A drying plate, arranged in the drying box at one side corresponding to the discharge port, for drying the cotton yarn; Among them, a transmission roller group is provided in the drying box corresponding to the drying plate, and the transmission roller group includes a first transmission roller located at the input side of the drying plate and a second transmission roller located at the output side of the drying plate. The first transmission roller and the second transmission roller are configured to be driven synchronously and convey the cotton yarn at the same speed, so that the cotton yarn is conveyed while maintaining a constant tension when being dried in the drying plate.

[0006] Furthermore, the drying plates are provided in a plurality of groups in the drying box along the conveying direction of the cotton yarn, and correspondingly, the transmission roller groups are provided in a plurality of groups, and two adjacent transmission roller groups are synchronously driven by a transmission belt.

[0007] Furthermore, the drying plate includes a second air outlet plate arranged parallel to the upper side of the cotton yarn and a second air exhaust plate arranged parallel to the lower side of the cotton yarn, a second transmission channel for the cotton yarn to pass through is provided between the second air outlet plate and the second air exhaust plate, a second air outlet channel is provided inside the second air outlet plate, the second air outlet channel is connected to an external air supply device, a second air exhaust channel is provided inside the second air exhaust plate, the second air exhaust channel is connected to an external air exhaust device, the second air outlet plate and the second air exhaust plate are both provided with second air holes on one side facing the second transmission channel, the second air holes are connected to the second air outlet channel and the second air exhaust channel.

[0008] Furthermore, a heating wire is installed inside the second air outlet channel, and the heating wire is connected to the temperature control device. A humidity detector is provided on the output side of each group of drying plates, and the humidity detector is used to detect the humidity of the cotton yarn passing through the drying plates.

[0009] Furthermore, the guide roller group includes two guide rollers distributed upper and lower, the cotton yarn between the two guide rollers is transported from bottom to top in the vertical direction, and more than one group of squeezing rollers are provided on the conveying path of the cotton yarn, each group includes two squeezing rollers symmetrically distributed on both sides of the cotton yarn, and the squeezing rollers are pressed on both sides of the cotton yarn to squeeze out water in the cotton yarn, and a water receiving trough is provided under each group of squeezing rollers, and the water receiving trough is used to guide the water squeezed out of the cotton yarn out of the drying box.

[0010] Furthermore, the squeezing roller includes a group of first squeezing rollers and a group of second squeezing rollers arranged along the cotton yarn conveying direction, a first elastic sleeve is fixedly provided on the outer wall of the first squeezing roller, and a second elastic sleeve is fixedly provided on the outer wall of the second squeezing roller, the first elastic sleeve and the second elastic sleeve are both constructed as elastic sleeves with smooth surfaces, and the elasticity of the second elastic sleeve is greater than that of the first elastic sleeve.

[0011] Furthermore, the water receiving trough includes two guide plates distributed in a "V" shape, and a positioning support is fixedly provided on the inner wall of the drying box corresponding to the guide plate, and the guide plate is clamped on the positioning support. A guide pipe is provided on the outer wall of the drying box corresponding to the end of the guide plate, and the inlet of the guide pipe passes through the drying box and is located at the end of the guide plate.

[0012] Furthermore, an air guide plate is provided between the guide roller group and the transmission roller group, and the air guide plate includes a first air outlet plate and a first air exhaust plate distributed parallel to the upper and lower sides of the cotton yarn along the conveying direction of the cotton yarn, and a first transmission channel for the cotton yarn to pass through is provided between the first air outlet plate and the first air exhaust plate, a first air outlet channel is provided inside the first air outlet plate, and the first air outlet channel is connected to an external air supply device, a first air exhaust channel is provided inside the first air exhaust plate, and the first air exhaust channel is connected to an external air exhaust device, and a first air hole is provided on a side of the first air outlet plate and the first air exhaust plate facing the first transmission channel, and the first air hole is connected to the first air outlet channel and the first air exhaust channel.

[0013] Furthermore, first transmission belts are alternately installed in pairs on the rotating shafts of multiple groups of the first transmission rollers, so that any two adjacent first transmission rollers can rotate synchronously through the transmission of the first transmission belts, and a first transmission motor for driving the first transmission rollers to rotate is fixedly installed on the outer wall of the drying box. Second transmission belts are alternately installed in pairs on the rotating shafts of multiple groups of the second transmission rollers, so that any two adjacent second transmission rollers can rotate synchronously through the transmission of the second transmission belts, and a second transmission motor for driving the second transmission rollers to rotate is fixedly installed on the outer wall of the drying box, and the first transmission motor and the second transmission motor are configured to operate at the same speed.

[0014] A second aspect of the present invention provides a method for drying textile cotton yarn, using the above-mentioned textile cotton yarn drying device, comprising the following steps: Conveying: The cotton yarn enters the drying box under the conveyance of the first conveying roller group, passes through the guide roller group, and then passes through the air guide plate, the transmission roller group, the drying plate and the humidity detector; Extrusion drainage: When the cotton yarn passes through the squeezing rollers, the squeezing rollers distributed on both sides of the cotton yarn are pressed against each other to squeeze out part of the water in the cotton yarn, and the squeezed water flows into the water receiving trough and is discharged from the drying box; Air drying: when the cotton yarn passes through the air guide plate, the first air outlet plate distributed on the upper side of the cotton yarn guides airflow to the surface of the cotton yarn, and after the airflow passes through the cotton yarn, it brings out part of the water to the first air exhaust plate on the lower side of the cotton yarn, and the airflow and the water are sucked out by the first air exhaust plate; Drying: The cotton yarn passes through the drying plate under the action of the conveying roller group, and the second air outlet plate distributed on the upper side of the cotton yarn guides the hot air flow to the surface of the cotton yarn. After the hot air flow passes through the cotton yarn, it brings out part of the water to the second exhaust plate on the lower side of the cotton yarn, and the hot air flow and the water are sucked out by the second exhaust plate; Detection: When the cotton yarn passes through the humidity detector, the moisture content in the cotton yarn is detected; Discharging: After being dried, the cotton yarn is discharged from the discharging port of the drying box and is transported and discharged by the second conveying roller group; In the drying step, the plurality of transmission roller groups convey the cotton yarn at the same rotation speed, so that the cotton yarn is conveyed with a constant tension when being dried in the drying plate.

[0015] The beneficial effects achieved by the present invention using the above structure are as follows: In the process of drying the cotton yarn on the drying plate of the present invention, although the moisture content of the cotton yarn decreases as it is dried during transportation, the transmission roller group transports the cotton yarn at a constant tension, which can avoid the problem of gradually increasing transmission speed or gradually increasing tension during the drying process of the cotton yarn. Therefore, the problem of decreased performance of the cotton yarn after drying caused by tension on the cotton fibers will not occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of a feeding port side of a textile cotton yarn drying device proposed in an embodiment of the present invention; Figure 2 A schematic diagram of the three-dimensional structure of a discharge port side of a textile cotton yarn drying device proposed in an embodiment of the present invention; Figure 3 A schematic diagram of a half-section structure of a textile cotton yarn drying device proposed in an embodiment of the present invention; Figure 4 A schematic diagram of the internal structure of a textile cotton yarn drying device proposed in an embodiment of the present invention; Figure 5 for Figure 4 A schematic diagram of the enlarged structure of the area at A in the middle; Figure 6 The present invention provides an enlarged structural schematic diagram of a first air guide plate and a second air guide plate.

[0017] Among them, 01, the first conveying roller group; 02, the second conveying roller group; 10, the drying box; 101, the feed port; 102, the discharge port; 20, the guide roller group; 30, the transmission roller group; 31, the first transmission roller; 311, the first transmission belt; 312, the first transmission motor; 32, the second transmission roller; 321, the second transmission belt; 322, the second transmission motor; 40, the squeezing roller; 401, the driving motor; 402, the first transmission gear group; 403, the second transmission gear group; 41, the first squeezing roller; 411, the first elastic sleeve; 42, the second squeezing roller; 421, the second elastic sleeve ; 50. air guide plate; 500. first transmission channel; 501. first air hole; 51. first air outlet plate; 510. first air outlet channel; 52. first exhaust plate; 520. first exhaust channel; 60. drying plate; 600. second transmission channel; 601. second air hole; 61. second air outlet plate; 610. second air outlet channel; 62. second exhaust plate; 620. second exhaust channel; 63. heating wire; 70. humidity detector; 80. water receiving trough; 81. guide plate; 82. positioning support; 83. guide pipe; 90. air guide pipe group; 91. air supply pipe; 92. exhaust pipe.

[0018] The accompanying drawings are used to provide further understanding of the embodiments and constitute a part of the specification. They are used for explanation together with the embodiments and do not constitute a limitation of the embodiments. DETAILED DESCRIPTION

[0019] 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, rather than all the embodiments; based on the embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection.

[0020] In the description of the embodiments, it should be understood that terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the embodiments.

[0021] like Figure 1 and Figure 2 As shown, in a first aspect of an embodiment of the present invention, a textile cotton yarn drying device is provided, comprising a first conveying roller group 01, a second conveying roller group 02 and a drying box 10.

[0022] Among them, a feed port 101 and a discharge port 102 are respectively provided on both sides of the drying box 10, and a first conveying roller group 01 and a second conveying roller group 02 for conveying cotton yarn are respectively provided on the outer side of the drying box 10 corresponding to the feed port 101 and the discharge port 102. When in use, the first conveying roller group 01 provides power for the cotton yarn to pass through the feed port 101 into the drying box 10 for drying, and then the second conveying roller group 02 provides power to the cotton yarn, and the dried cotton yarn is guided out of the drying box 10 from the discharge port 102.

[0023] like Figure 3 and Figure 4 As shown, the guide roller group 20 is arranged on one side of the drying box 10 corresponding to the feed port 101 for guiding the cotton yarn.

[0024] Among them, the guide roller group 20 includes two guide rollers distributed upper and lower, and the cotton yarn between the two guide rollers is transported from bottom to top in the vertical direction, and more than one group of squeezing rollers 40 are provided on the conveying path of the cotton yarn, and each group includes two squeezing rollers 40 symmetrically distributed on both sides of the cotton yarn, and the squeezing rollers 40 are pressed on both sides of the cotton yarn to squeeze out water in the cotton yarn. In this way, the guide roller group 20 guides the cotton yarn in the vertical direction, and squeezing rollers 40 are provided on both sides of the cotton yarn to squeeze out the water in the cotton yarn by rolling. The moisture in the cotton yarn can be reduced before the drying step to prepare for the subsequent hot air drying.

[0025] Furthermore, a water receiving trough 80 is provided under each set of squeezing rollers 40, and the water receiving trough 80 is used to guide the water squeezed out of the cotton yarn out of the drying box 10. In this way, the excess water squeezed out will flow along the cotton yarn into the water receiving trough 80, and be guided by the water receiving trough 80 to guide the excess water out of the drying box 10, so as to avoid the excess water squeezed out from flowing back into the cotton yarn.

[0026] like Figure 5 As shown, in some embodiments, the squeezing roller 40 includes a group of first squeezing rollers 41 and a group of second squeezing rollers 42 arranged along the cotton yarn conveying direction, a first elastic sleeve 411 is fixedly provided on the outer wall of the first squeezing roller 41, and a second elastic sleeve 421 is fixedly provided on the outer wall of the second squeezing roller 42.

[0027] Among them, the first elastic sleeve 411 and the second elastic sleeve 421 can both adopt a polyurethane foam plastic tube with a smooth outer wall and a foamed structure in the middle, and the density of the second elastic sleeve 421 is greater than the density of the first elastic sleeve 411. In this way, the first elastic sleeve 411 and the second elastic sleeve 421 are both constructed as elastic sleeves with smooth surfaces, which will not absorb water when in contact with cotton yarn. The elasticity of the second elastic sleeve 421 is greater than that of the first elastic sleeve 411. After the first elastic sleeve 411 is squeezed once after contacting the cotton yarn, the second elastic sleeve 421 with a larger density squeezes the cotton yarn for a second time to further squeeze out the water of the cotton yarn, which can reduce the moisture content in the cotton yarn after squeezing.

[0028] like Figure 1 As shown, the shaft end of the first squeezing roller 41 passes through the drying box 10 and is connected to the first transmission gear set 402 outside. The two first squeezing rollers 41 in the same group are driven by a pair of first transmission gear sets 402, so that the two first squeezing rollers 41 can roll the cotton yarn in the middle relative to each other to squeeze out the moisture in the cotton yarn. Similarly, the shaft end of the second squeezing roller 42 passes through the drying box 10 and is connected to the second transmission gear set 403 outside. The two second squeezing rollers 42 in the same group are driven by a pair of second transmission gear sets 403. At the same time, a driving motor 401 is installed on the outside of the drying box 10, and the output end of the driving motor 401 drives the first transmission gear set 402 and the second transmission gear set 403 to be synchronously driven through two sets of transmission belts.

[0029] In some embodiments, the water receiving trough 80 includes two guide plates 81 distributed in a "V" shape, and a positioning support 82 is fixedly provided on the inner wall of the drying box 10 corresponding to the guide plate 81, wherein the positioning support 82 is installed on the drying box 10 in a screwed manner, and the positioning support 82 can be rotated to adjust the angle. A card slot is provided on the surface of the positioning support 82 for installing the corresponding guide plate 81, so that the guide plate 81 can be clamped on the positioning support 82. In this way, the two guide plates 81 can be tightly attached to the surface of the cotton yarn. When excess water flows to the guide plate 81, the excess water can flow to both sides along the guide plate 81.

[0030] Furthermore, a guide pipe 83 is provided on the outer wall of the drying box 10 at the end of the guide plate 81. Generally, the guide plate 81 is tilted toward the side of the guide pipe 83. The inlet of the guide pipe 83 passes through the drying box 10 and is located at the end of the guide plate 81, so that the water collected on the guide plate 81 can flow into the guide pipe 83 for discharge.

[0031] like Figure 1 As shown, an air guide pipe group 90 is fixedly provided on the outer wall of the drying box 10, and the air guide pipe group 90 includes an air supply pipe 91 connected to an external air supply device and an air exhaust pipe 92 connected to an external air exhaust device.

[0032] like Figure 3 and Figure 6 As shown, an air guide plate 50 is provided on the rear side of the guide roller group 20 along the conveying direction of the cotton yarn. The air guide plate 50 includes a first air outlet plate 51 and a first air suction plate 52 which are parallelly distributed on the upper and lower sides of the cotton yarn along the conveying direction of the cotton yarn.

[0033] Among them, a first transmission channel 500 for cotton yarn to pass through is provided between the first air outlet plate 51 and the first air exhaust plate 52, a first air outlet channel 510 is provided inside the first air outlet plate 51, and the first air outlet channel 510 is connected to an external air supply device, a first air exhaust channel 520 is provided inside the first air exhaust plate 52, and the first air exhaust channel 520 is connected to an external air exhaust device, and a first air hole 501 is provided on one side of the first air outlet plate 51 and the first air exhaust plate 52 facing the first transmission channel 500, and the first air hole 501 is connected to the first air outlet channel 510 and the first air exhaust channel 520.

[0034] Among them, the first air outlet plate 51 is connected with the air supply pipe 91, and the air supply device can transport gas to the first air outlet channel 510 in the first air outlet plate 51 through the air supply pipe 91. After the gas is collected in the first air outlet channel 510, it is discharged from the first air hole 501 and guided to the surface of the cotton yarn. When the airflow passes through the cotton yarn, the moisture in the cotton yarn is taken out and transmitted to the first exhaust plate 52 below. The first exhaust plate 52 is connected with the exhaust pipe 92, and the exhaust device can suck and discharge the gas in the first exhaust channel 520 through the exhaust pipe 92. In this way, after the airflow is discharged through the first air outlet plate 51, the moisture in the cotton yarn is taken out through the cotton yarn, and then enters the first exhaust plate 52 to be sucked and discharged, thereby achieving the effect of preliminary air drying of the cotton yarn, so as to reduce the heat energy consumed by subsequent hot air drying, and reduce the action time of heat on the cotton yarn, so as to avoid the cotton fibers in the cotton yarn being damaged by high-temperature airflow drying.

[0035] like Figure 3 and Figure 4 As shown, a drying plate 60 is arranged on one side of the drying box 10 corresponding to the discharge port 102, and is used to dry the cotton yarn. A transmission roller group 30 is provided at the drying box 10 corresponding to the drying plate 60. The transmission roller group 30 includes a first transmission roller 31 located on the input side of the drying plate 60 and a second transmission roller 32 located on the output side of the drying plate 60. The first transmission roller 31 and the second transmission roller 32 are configured to convey the cotton yarn at the same rotation speed, so that the cotton yarn is conveyed while maintaining a constant tension when being dried in the drying plate 60.

[0036] In this way, when the drying plate 60 is drying the cotton yarn, the transmission roller group 30 transports the cotton yarn at a constant tension. Although the moisture content of the cotton yarn decreases with drying during the transportation process, the tension on the cotton fibers in the cotton yarn is constant. Therefore, the problem of decreased performance of the cotton yarn after drying due to the tension on the cotton fibers will not occur.

[0037] Furthermore, a plurality of drying plates 60 are provided in the drying box 10 along the conveying direction of the cotton yarn, and a plurality of corresponding transmission roller groups 30 are provided, and two adjacent transmission roller groups 30 are synchronously driven by a transmission belt.

[0038] like Figure 1 As shown, in some embodiments, first transmission belts 311 are alternately installed on the rotating shafts of multiple groups of first transmission rollers 31, so that any two adjacent first transmission rollers 31 are driven and rotated synchronously by the first transmission belts 311, and a first transmission motor 312 for driving the first transmission rollers 31 to rotate is fixedly installed on the outer wall of the drying box 10, and second transmission belts 321 are alternately installed on the rotating shafts of multiple groups of second transmission rollers 32, so that any two adjacent second transmission rollers 32 are driven and rotated synchronously by the second transmission belts 321, and a second transmission motor 322 for driving the second transmission rollers 32 to rotate is fixedly installed on the outer wall of the drying box 10, and the first transmission motor 312 and the second transmission motor 322 are configured to work at the same speed, so that it can be ensured that the multiple groups of first transmission rollers 31 and the multiple groups of second transmission rollers 32 transmit cotton yarn at a constant speed and constant tension, which can avoid the problem of gradually increasing transmission speed or gradually increasing tension of cotton yarn during the drying process.

[0039] like Figure 4 and Figure 6 As shown, the drying plate 60 includes a second air outlet plate 61 arranged parallel to the upper side of the cotton yarn and a second air exhaust plate 62 arranged parallel to the lower side of the cotton yarn, a second transmission channel 600 for the cotton yarn to pass through is provided between the second air outlet plate 61 and the second air exhaust plate 62, a second air outlet channel 610 is provided inside the second air outlet plate 61, and the second air outlet channel 610 is connected to an external air supply device, a second air exhaust channel 620 is provided inside the second air exhaust plate 62, and the second air exhaust channel 620 is connected to an external air exhaust device, the second air outlet plate 61 and the second air exhaust plate 62 are both provided with second air holes 601 on one side facing the second transmission channel 600, and the second air holes 601 are connected to the second air outlet channel 610 and the second air exhaust channel 620.

[0040] In this way, the second air outlet plate 61 is connected to the air supply pipe 91, and the air supply device can transport gas to the second air outlet channel 610 in the second air outlet plate 61 through the air supply pipe 91. The second air exhaust plate 62 is connected to the exhaust pipe 92, and the exhaust device can suck and discharge the gas in the second exhaust channel 620 through the exhaust pipe 92. When the cotton yarn passes through the second transmission channel 600, the second air outlet plate 61 guides the hot air through the cotton yarn, and then sucks and discharges the hot air together with moisture from the second exhaust plate 62, and uses the hot air to dry the cotton yarn.

[0041] Furthermore, a heating wire 63 is installed inside the second air outlet channel 610 , and the heating wire 63 is connected to the temperature control device. A humidity detector 70 is provided on the output side of each group of drying plates 60 , and the humidity detector 70 is used to detect the humidity of the cotton yarn passing through the drying plates 60 .

[0042] In some embodiments, the humidity detector 70 uses a resistance sensor or a capacitance sensor to detect the moisture content in the cotton yarn online in a non-contact manner. Taking the resistance sensor as an example, the resistance sensor is composed of two electrodes. When the cotton yarn sample is placed between the electrodes and a certain voltage is applied, the conductive properties of the cotton yarn can be reflected by measuring the current or resistance value in the circuit, thereby indirectly obtaining its moisture content. According to the moisture content of the cotton yarn detected by each group of humidity detectors 70, the corresponding temperature value of the heating wire 63 is selected to adjust so that the cotton yarn can be dried at a suitable temperature to avoid over-drying of the cotton yarn and damage to the cotton fibers.

[0043] A second aspect of an embodiment of the present invention provides a method for drying textile cotton yarn, using the above-mentioned textile cotton yarn drying device, comprising the following steps: Transport: The cotton yarn enters the drying box 10 under the transport of the first transport roller group 01, and passes through the guide roller group 20 and then passes through the air guide plate 50, the transmission roller group 30, the drying plate 60 and the humidity detector 70.

[0044] Extrusion drainage: When the cotton yarn passes through the squeezing rollers 40, the squeezing rollers 40 distributed on both sides of the cotton yarn roll against each other to squeeze out part of the water in the cotton yarn, and the squeezed water flows into the water receiving trough 80 and is discharged from the drying box 10, wherein the squeezing rollers 40 squeeze out the water in the cotton yarn in a rolling manner, which can reduce the moisture in the cotton yarn before the drying step and prepare for subsequent hot air drying. A water receiving trough 80 is provided under each group of squeezing rollers 40, and the water receiving trough 80 is used to guide the water squeezed out of the cotton yarn out of the drying box 10, so that the excess water squeezed out will flow along the cotton yarn into the water receiving trough 80, and be guided by the water receiving trough 80 to guide the drying box 10 to avoid the excess water squeezed out from flowing back to the cotton yarn.

[0045] Air drying: When the cotton yarn passes through the air guide plate 50, the first air outlet plate 51 distributed on the upper side of the cotton yarn guides the air flow to the surface of the cotton yarn. After passing through the cotton yarn, the air flow will bring out part of the water to the first exhaust plate 52 on the lower side of the cotton yarn, and the air flow and the water will be sucked out by the first exhaust plate 52, so as to achieve the effect of preliminary air drying of the cotton yarn, so as to reduce the heat energy consumed in the subsequent hot air drying, and reduce the action time of heat on the cotton yarn, so as to avoid the cotton fibers in the cotton yarn being damaged by the high-temperature air flow drying.

[0046] Drying: The cotton yarn passes through the drying plate 60 under the action of the transmission roller group 30, and the second air outlet plate 61 distributed on the upper side of the cotton yarn guides the hot air flow to the surface of the cotton yarn. After passing through the cotton yarn, the hot air flow will bring out part of the water to the second exhaust plate 62 on the lower side of the cotton yarn, and the hot air flow and the water are sucked out by the second exhaust plate 62, and the cotton yarn is dried by the hot air. In the drying step, multiple groups of transmission roller groups 30 convey the cotton yarn at the same speed, so that the cotton yarn is kept at a constant tension when it is dried in the drying plate 60. Although the moisture content of the cotton yarn decreases as it is dried during the conveying process, the tension on the cotton fibers in the cotton yarn is fixed, so it will not cause the problem of decreased performance of the cotton yarn after drying caused by the tension on the cotton fibers.

[0047] Detection: When the cotton yarn passes through the humidity detector 70, the moisture content in the cotton yarn is detected. According to the moisture content of the cotton yarn detected by each group of humidity detectors 70, the corresponding temperature value of the heating wire 63 is selected and adjusted so that the cotton yarn can be dried at a suitable temperature to avoid over-drying of the cotton yarn and damage to the cotton fiber.

[0048] Discharging: After being dried, the cotton yarn is discharged from the discharging port 102 of the drying box 10 and is transported and discharged by the second conveying roller group 02.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] Although embodiments have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations may be made to the embodiments without departing from the principles and spirit thereof, and the scope of the embodiments is defined by the appended claims and their equivalents.

[0051] The above description of the implementation mode is not restrictive, and the drawings show only one of the implementation modes, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention, they should all fall within the scope of protection.

Claims

1. A textile cotton yarn drying device, characterized in that: include: A drying box (10), wherein a feed inlet (101) and a discharge outlet (102) are respectively provided on both sides of the drying box (10), and a first conveying roller group (01) and a second conveying roller group (02) for conveying cotton yarn are respectively provided on the outer side of the drying box (10) corresponding to the feed inlet (101) and the discharge outlet (102); A guide roller group (20), arranged on a side of the drying box (10) corresponding to the feed opening (101), and used for guiding the cotton yarn; A drying plate (60) is arranged in the drying box (10) at a side corresponding to the discharge port (102) and is used for drying the cotton yarn; Wherein, a transmission roller group (30) is provided in the drying box (10) at a position corresponding to the drying plate (60), the transmission roller group (30) comprising a first transmission roller (31) located at an input side of the drying plate (60) and a second transmission roller (32) located at an output side of the drying plate (60), the first transmission roller (31) and the second transmission roller (32) being configured to be driven synchronously and to convey the cotton yarn at the same speed, so that the cotton yarn is conveyed with a constant tension when being dried in the drying plate (60); The guide roller group (20) comprises two guide rollers arranged at the upper and lower parts, the cotton yarn between the two guide rollers is transported from bottom to top along the vertical direction, and one or more extrusion rollers (40) are arranged on the transport path of the cotton yarn, and an air guide plate (50) is arranged between the guide roller group (20) and the transmission roller group (30).

2. The textile cotton yarn drying device according to claim 1, characterized in that: A plurality of drying plates (60) are provided in the drying box (10) along the conveying direction of the cotton yarn, and a plurality of corresponding transmission roller groups (30) are provided. Two adjacent transmission roller groups (30) are synchronously driven by a transmission belt.

3. The textile cotton yarn drying device according to claim 2, characterized in that: The drying plate (60) comprises a second air outlet plate (61) arranged in parallel on the upper side of the cotton yarn and a second air suction plate (62) arranged in parallel on the lower side of the cotton yarn; a second transmission channel (600) for the cotton yarn to pass through is provided between the second air outlet plate (61) and the second air suction plate (62); a second air outlet channel (610) is provided inside the second air outlet plate (61); the second air outlet channel (610) is communicated with an external air supply device; a second air suction channel (620) is provided inside the second air suction plate (62); the second air suction channel (620) is connected with an external air suction device; a second air hole (601) is provided on a side of the second air outlet plate (61) and the second air suction plate (62) facing the second transmission channel (600); the second air hole (601) is communicated with the second air outlet channel (610) and the second air suction channel (620).

4. The textile cotton yarn drying device according to claim 3, characterized in that: A heating wire (63) is installed inside the second air outlet channel (610), and the heating wire (63) is connected to a temperature control device. A humidity detector (70) is provided on the output side of each group of drying plates (60), and the humidity detector (70) is used to detect the humidity of the cotton yarn passing through the drying plates (60).

5. The textile cotton yarn drying device according to claim 4, characterized in that: Each group comprises two squeezing rollers (40) symmetrically distributed on both sides of the cotton yarn, and the squeezing rollers (40) are pressed against both sides of the cotton yarn to squeeze out water from the cotton yarn. A water receiving trough (80) is provided below each group of squeezing rollers (40), and the water receiving trough (80) is used to guide the water squeezed out of the cotton yarn out of the drying box (10).

6. The textile cotton yarn drying device according to claim 5, characterized in that: The squeezing rollers (40) comprise a group of first squeezing rollers (41) and a group of second squeezing rollers (42) arranged along the cotton yarn conveying direction; a first elastic sleeve (411) is fixedly provided on the outer wall of the first squeezing roller (41); a second elastic sleeve (421) is fixedly provided on the outer wall of the second squeezing roller (42); the first elastic sleeve (411) and the second elastic sleeve (421) are both constructed as elastic sleeves with smooth surfaces, and the elasticity of the second elastic sleeve (421) is greater than the elasticity of the first elastic sleeve (411).

7. The textile cotton yarn drying device according to claim 5, characterized in that: The water receiving trough (80) comprises two guide plates (81) arranged in a "V" shape. A positioning support (82) is fixedly provided on the inner side wall of the drying box (10) at a position corresponding to the guide plate (81). The guide plate (81) is clamped on the positioning support (82). A guide pipe (83) is provided on the outer side wall of the drying box (10) at an end portion corresponding to the guide plate (81). The inlet of the guide pipe (83) passes through the drying box (10) and is located at an end portion of the guide plate (81).

8. The textile cotton yarn drying device according to claim 5, characterized in that: The air guide plate (50) comprises a first air outlet plate (51) and a first air suction plate (52) which are parallelly distributed on the upper and lower sides of the cotton yarn along the conveying direction of the cotton yarn; a first transmission channel (500) for the cotton yarn to pass through is provided between the first air outlet plate (51) and the first air suction plate (52); a first air outlet channel (510) is provided inside the first air outlet plate (51); the first air outlet channel (510) is communicated with an external air supply device; a first air suction channel (520) is provided inside the first air suction plate (52); the first air suction channel (520) is connected with an external air suction device; a first air hole (501) is provided on a side of the first air outlet plate (51) and the first air suction plate (52) facing the first transmission channel (500); the first air hole (501) is communicated with the first air outlet channel (510) and the first air suction channel (520).

9. The textile cotton yarn drying device according to claim 2, characterized in that: A first transmission belt (311) is alternately installed on the rotating shafts of the plurality of groups of the first transmission rollers (31), so that any two adjacent first transmission rollers (31) are driven to rotate synchronously by the first transmission belt (311); a first transmission motor (312) for driving the first transmission rollers (31) to rotate is fixedly installed on the outer wall of the drying box (10); a second transmission belt (321) is alternately installed on the rotating shafts of the plurality of groups of the second transmission rollers (32), so that any two adjacent second transmission rollers (32) are driven to rotate synchronously by the second transmission belt (321); a second transmission motor (322) for driving the second transmission rollers (32) to rotate is fixedly installed on the outer wall of the drying box (10); and the first transmission motor (312) and the second transmission motor (322) are configured to operate at the same speed.

10. A method for drying textile cotton yarn, characterized in that: The use of the textile cotton yarn drying device according to claim 8 comprises the following steps: Transport: the cotton yarn enters the drying box (10) under the transport of the first transport roller group (01), passes through the guide roller group (20), and then passes through the air guide plate (50), the transmission roller group (30), the drying plate (60) and the humidity detector (70); Extrusion drainage: when the cotton yarn passes through the squeezing rollers (40), the squeezing rollers (40) distributed on both sides of the cotton yarn are pressed against each other to squeeze out part of the water in the cotton yarn, and the squeezed water flows into the water receiving trough (80) and is discharged from the drying box (10); Air drying: when the cotton yarn passes through the air guide plate (50), the first air outlet plate (51) disposed on the upper side of the cotton yarn guides airflow toward the surface of the cotton yarn, and after the airflow passes through the cotton yarn, it brings out part of the water to the first air exhaust plate (52) on the lower side of the cotton yarn, and the airflow and the water are sucked out by the first air exhaust plate (52); Drying: the cotton yarn passes through the drying plate (60) under the action of the transmission roller group (30), and the second air outlet plate (61) distributed on the upper side of the cotton yarn guides the hot air flow to the surface of the cotton yarn. After the hot air flow passes through the cotton yarn, it brings out part of the water to the second exhaust plate (62) on the lower side of the cotton yarn, and the hot air flow and the water are sucked out by the second exhaust plate (62); Detection: when the cotton yarn passes through the humidity detector (70), the moisture content in the cotton yarn is detected; Discharging: after being dried, the cotton yarn is discharged from the discharge port (102) of the drying box (10) and is transported and discharged by the second conveying roller group (02); In the drying step, the plurality of transmission roller groups (30) convey the cotton yarn at the same rotation speed, so that the cotton yarn is conveyed at a constant tension while being dried in the drying plate (60).

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