Spinning frame capable of being used for cloud yarn production

Abstract

The spinning frame capable of being used for cloud yarn production comprises an external connection frame, a first fixing frame is fixedly connected to the uppermost portion of the front side of the external connection frame, a second fixing frame is fixedly connected to the upper portion of the front side of the external connection frame, and a third fixing frame is fixedly connected to the lowermost portion of the front side of the external connection frame. A fourth fixing frame is fixedly connected to the lower portion of the front side of the external connection frame. Through cooperation of the yarn inlet roller device, the variable-speed roller device, the guide device, the follow-up compensation device, the variable-pressure yarn outlet device, the pressure stabilizing device and the monitoring device, variable-speed roller drawing can be carried out on rough yarn in a settable mode, the rough yarn has the set bulkiness and the bulkiness length, the tension degree of yarn in front of and behind the variable-speed roller drawing can be kept, and the yarn quality is improved. And the accuracy of a set value when roving is subjected to a variable-speed drawing roller can be ensured.

Description

Technical Field

[0001] The invention relates to a spinning frame, in particular to a spinning frame which can be used for producing "cloud yarn". Background Art

[0002] Spinning machine: a special textile equipment used to produce fine yarn in spinning production, usually composed of four parts: feeding, drafting, twisting and winding. The coarse yarn can be drafted and twisted according to certain production requirements to be processed into fine yarn products of certain specifications. The fine yarn usually needs to be further processed into double yarns through winding, doubling and doubling processes for subsequent weaving. At the same time, single yarn can also be directly woven, such as circular knitting machines and shuttle woven products.

[0003] "Cloud Yarn": The present invention uses a spinning frame to produce a fluffy yarn that is irregularly distributed in a conventional yarn segment. This special fancy yarn presents a faint cloud-like pattern on the surface after weaving, giving consumers a light and fluffy touch and a three-dimensional mottled look.

[0004] In order to produce a kind of fluffy yarn that is irregularly distributed in the conventional yarn segment in the spinning frame link, so that this special yarn can form a faint cloud-like pattern on the fabric after weaving, the spinning frame can electrically and adjustable change the drafting speed of the roving in the drawing roller stage in the spinning frame, so that the roving is drafted by the roller at a set speed and for a duration of this speed, so that the roving forms yarn segments with a variety of set lengths and a variety of set fluffiness. The spun yarn with such yarn segments is further processed into double yarns through winding, doubling and doubling processes for subsequent weaving. The yarn still has the characteristics of set length and set fluffiness. Compared with the existing spinning frame, the uniform spun yarn is not This type of characteristic can be produced by a spinning machine that produces yarn with a set length and a set bulkiness. The specific position of the yarn when weaving can be arranged according to the length and bulkiness set during production, so that the yarn with the set length and the set bulkiness in a certain yarn segment is woven according to the weaving rule, and finally a pattern of a set shape is formed on one side. The set pattern is a looming cloud-like pattern, and the set pattern can be adjusted according to the process of the drafting rollers passing the set speed of the coarse yarn and the duration of this speed, and the weaving position can be arranged according to a rule, and the woven fabric has a light and fluffy touch due to the bulkiness of the yarn, and the woven pattern and flower pattern and their overall visual sense have a three-dimensional and mottled look and feel.

[0005] Therefore, in order to produce the yarn with settable yarn bulkiness and bulky length, a spinning frame that can be used for "cloud yarn" production is developed to achieve the above purpose. Summary of the invention

[0006] The object of the present invention is to provide a roving machine that can be used for the production of "cloud yarn". Through the cooperation of an inlet roller device, a speed-changing roller device, a guide device, a follow-up compensation device, a voltage-changing outlet device, a voltage-stabilizing device and a monitoring device, the roving can be subjected to a settable speed-changing drafting roller, so that the roving has a set fluffiness and fluffiness length, and the tension of the yarn before and after the speed-changing drafting roller can be maintained, so as to ensure the accuracy of the set value when the roving is subjected to the speed-changing drafting roller.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A spinning machine that can be used for the production of "cloud yarn", comprising an external frame, a first fixed frame fixedly connected to the uppermost front side of the external frame, a second fixed frame fixedly connected to the upper front side of the external frame, a third fixed frame fixedly connected to the lower front side of the external frame, and a fourth fixed frame fixedly connected to the lower front side of the external frame; a wire feed roller device is provided at the first fixed frame, and the wire feed roller device is used to pull the roving downward at a constant speed; a speed-changing roller device is provided at the fourth fixed frame, and the speed-changing roller device is used to electrically control the speed of the roller drafting the roving; a guiding device is provided at both the second fixed frame and the third fixed frame; a follow-up compensation device is provided at both the second fixed frame and the third fixed frame, and the follow-up compensation device and the guiding device are divided into upper and lower parts, the follow-up compensation device is used to advance and release the excess length of the yarn passing through the drafting roller of the speed-changing roller device, and the guiding device is used to guide the yarn during the advancement and release process of the follow-up compensation device.

[0008] As a further improvement of the present invention, the wire feed roller device includes a wire feed bucket, which is fixedly connected to the upper side of the first fixed frame, and two wire feed shafts are rotatably connected to the first fixed frame, a first rubber roller is fixedly connected to the front wire feed shaft, and a first conveying roller is fixedly connected to the rear wire feed shaft.

[0009] As a further improvement of the present invention, the speed-changing roller device includes a speed-changing shaft, two speed-changing shafts are rotatably connected to the fourth fixed frame, a second rubber roller is fixedly connected to the front speed-changing shaft, and a second conveying roller is fixedly connected to the rear speed-changing shaft, a connecting frame is provided on the right side of the speed-changing shaft, two groups of servo motors are fixedly connected to the connecting frame, and the output shafts of the servo motors are respectively connected to the two speed-changing shafts through couplings.

[0010] As a further improvement of the present invention, the guide device includes an upper guide wheel, which is rotatably connected to the upper side of the second fixed frame and the third fixed frame respectively, and the lower side of the second fixed frame and the third fixed frame are both rotatably connected to lower guide wheels.

[0011] As a further improvement of the present invention, the follow-up compensation device includes a first moving pair, the first moving pair is in two groups, the first moving pairs are respectively installed on the second fixed frame and the third fixed frame, the moving parts of the first moving pair are fixedly connected with a U-shaped frame, the front sides of the U-shaped frames are fixedly connected with guide blocks, the rear sides of the second fixed frame and the third fixed frame are fixedly connected with first electric push rods, and the propulsion parts of the first electric push rods are respectively connected to the adjacent U-shaped frames.

[0012] As a further improvement of the present invention, it also includes a voltage-variable wire-out device, which is arranged at the lower front side of the external frame, and the voltage-variable wire-out device is located below the third fixed frame. The voltage-variable wire-out device is used to maintain a constant wire-out speed of the yarn after passing through the variable-speed drafting roller. A mounting frame is fixedly connected to the lower front side of the external frame, and a wire-out shaft is rotatably connected to the front side of the mounting frame. A third rubber roller is fixedly connected to the wire-out shaft, and a wire-out bucket is fixedly connected to the upper side of the mounting frame. A voltage-regulating component is provided at the mounting frame, and the voltage-regulating component is used to cooperate with the third rubber roller to automatically adjust the traction pressure on the yarn.

[0013] As a further improvement of the present invention, the voltage regulating assembly includes a second moving pair, the second moving pair is fixedly connected to both sides of the mounting frame, a displacement frame is fixedly connected between the moving parts of the second moving pair, the front side of the displacement frame is rotatably connected to a displacement shaft, the rear side of the mounting frame is fixedly connected to an extension frame, a second electric push rod is fixedly connected to the extension frame, a propulsion member of the second electric push rod is connected to the rear side of the displacement frame, a third conveying roller is fixedly connected to the displacement shaft, a universal coupling is connected to the displacement shaft, and the displacement shaft is connected to the outlet main shaft of the spinning frame through the universal coupling.

[0014] As a further improvement of the present invention, it also includes a voltage stabilizing device, which is arranged in the middle part of the front side of the external frame, and is used to stabilize the friction and pressure of the coarse yarn entering the speed-changing roller device. A frame is fixedly connected to the middle part of the front side of the external frame, and a voltage stabilizing plate is fixedly connected to the inner side of the front side wall of the frame. A third moving pair is fixedly connected to both sides of the middle part of the frame, and a propulsion plate is fixedly connected between the moving parts of the third moving pair. The facing surfaces of the propulsion plate and the voltage stabilizing plate are rotatably connected with voltage stabilizing wheels, and a third electric push rod is fixedly connected to the rear side of the frame, and the moving part of the third electric push rod is connected to the moving part of the third moving pair.

[0015] As a further improvement of the present invention, it also includes a monitoring device, which is respectively arranged on the front side of the guide block. The monitoring device is used to monitor the tension state of the yarn when it is subjected to the stretching roller of the variable speed roller device and after the stretching roller. The front side of the guide block is fixedly connected to a pressure sensor, and the front side of the pressure sensor is fixedly connected to an arc guide frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention adopts a wire feed roller device and a speed-changing roller device with a constant running speed, so that the speed-changing roller device can stretch the roving at a set speed and duration, so that the roving can have the properties of settable fluffiness and length, and the roving can form yarn segments with a variety of set lengths and a variety of set fluffiness. In subsequent weaving, the weaving positions can be arranged according to a rule, and the woven fabric has a light and fluffy touch due to the fluffiness of the yarn. The woven pattern and flower pattern and their overall visual effect have a three-dimensional and mottled look, breaking the uniformity of conventional yarns and forming a new type of yarn with unique aesthetics.

[0018] 2. The present invention adopts a follow-up compensation device that automatically adjusts the yarn tension change in cooperation with the speed-changing roller device, so that the yarn can maintain its own tension before and after passing through the speed-changing drafting roller, avoiding the speed-changing drafting that is difficult to set due to different tensions caused by speed change, thereby ensuring the yarn quality during the speed-changing drafting roller.

[0019] 3. The present invention adopts an adjustable spacing between the pressure stabilizing plate and the propulsion plate of the pressure stabilizing device, so that when the speed changing roller device is stretching the roving, the propulsion plate and the pressure stabilizing plate can maintain the holding force on the roving through the pressure stabilizing wheel, and concentrate the speed changing points of the roving when being stretched by the roller, thereby reducing the overall force on the roving when being stretched by the roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the first three-dimensional structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the second three-dimensional structure of the present invention.

[0022] Figure 3 It is a schematic diagram of the third three-dimensional structure of the present invention.

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the wire feed roller device of the present invention.

[0024] Figure 5 It is a schematic diagram of the first three-dimensional structure of the guide device part of the present invention.

[0025] Figure 6 It is a three-dimensional structural schematic diagram of the speed-changing roller device part of the present invention.

[0026] Figure 7 It is a schematic diagram of a first partial three-dimensional structure of the transformer outlet device part of the present invention.

[0027] Figure 8 It is a schematic diagram of a second partial three-dimensional structure of the transformer outlet device part of the present invention.

[0028] Fig. 9 It is a schematic diagram of the second three-dimensional structure of the guide device part of the present invention.

[0029] Fig.10 It is a third stereoscopic structural schematic diagram of the guide device part of the present invention.

[0030] Fig.11 It is a schematic diagram of the partial three-dimensional structure of the follow-up compensation device of the present invention.

[0031] Fig.12 It is a schematic diagram of the first three-dimensional structure of the monitoring device part of the present invention.

[0032] Fig.13 This is a schematic diagram of the second three-dimensional structure of the monitoring device part of the present invention.

[0033] Fig.14 It is a schematic diagram of the three-dimensional structure of the voltage stabilizing device part of the present invention.

[0034] In the figure: 1, external frame, 2, first fixed frame, 3, second fixed frame, 4, third fixed frame, 5, fourth fixed frame, 6, wire feed roller device, 7, speed change roller device, 8, guide device, 9, follow-up compensation device, 61, wire feed bucket, 62, wire feed shaft, 63, first rubber roller, 64, first conveying roller, 71, speed change shaft, 72, second rubber roller, 73, second conveying roller, 74, connecting frame, 75, servo motor, 81, upper guide wheel, 82, lower guide wheel, 91, first moving pair, 92, U-shaped frame, 93, guide block, 94, first electric push rod, 10, transformer output Wire device, 101, mounting frame, 102, wire outlet shaft, 103, third rubber roller, 104, wire outlet bucket, 11, pressure regulating assembly, 111, second movable pair, 112, displacement frame, 113, extension frame, 114, second electric push rod, 115, displacement shaft, 116, third conveying roller, 117, universal coupling, 12, voltage stabilizing device, 121, frame, 122, voltage stabilizing plate, 123, third movable pair, 124, propulsion plate, 125, voltage stabilizing wheel, 126, third electric push rod, 13, monitoring device, 131, pressure sensor, 132, arc guide frame. DETAILED DESCRIPTION

[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0036] Example 1

[0037] like Figure 1-Figure 3 As shown, a spinning machine that can be used for "cloud yarn" production includes an external frame 1, a first fixed frame 2, a second fixed frame 3, a third fixed frame 4, a fourth fixed frame 5, a wire feed roller device 6, a speed-changing roller device 7, a guide device 8 and a follow-up compensation device 9. The external frame 1 is an I-frame 121 structure. The upper front side of the external frame 1 is fixedly connected to the first fixed frame 2, the upper front side of the external frame 1 is fixedly connected to the second fixed frame 3, the lower front side of the external frame 1 is fixedly connected to the third fixed frame 4, and the lower front side of the external frame 1 is fixedly connected to the fourth fixed frame 5. The first fixed frame 2 is provided with a wire feed roller device 6, and the wire feed roller device 6 is used for pulling the roving downward at a constant speed so that the roving tube can be stably output without being affected by speed change. The fourth fixed frame 5 is provided with a speed-changing roller device 7, and the speed-changing roller The device 7 is used for electrically controlling the speed of the roller drafting roving so that the yarn can have irregularly distributed fluffy yarn in the set yarn segment. The second fixed frame 3 and the third fixed frame 4 are both provided with a guiding device 8. The second fixed frame 3 and the third fixed frame 4 are both provided with a follow-up compensation device 9. The follow-up compensation device 9 and the guiding device 8 are divided into an upper and lower part. The upper guiding device 8 and the upper follow-up compensation device 9 are installed on the second fixed frame 3, and the lower guiding device 8 and the lower follow-up compensation device 9 are installed on the third fixed frame 4. The follow-up compensation device 9 is used to advance and release the excess length of the yarn passing through the drafting roller of the variable speed roller device 7 to ensure the tension of the yarn after passing through the drafting roller of the variable speed roller device 7. The guiding device 8 is used to guide the yarn during the advancement and release process of the follow-up compensation device 9.

[0038] In order to produce a kind of fluffy yarn that is irregularly distributed in the conventional yarn segment in the spinning frame link, so that this special yarn can form a faint cloud-like pattern after weaving; the above-mentioned yarn can be produced by the spinning frame that can be used for the production of "cloud yarn"; the spinning frame that can be used for the production of "cloud yarn" can be installed on the main frame of the spinning frame through the external frame 1, and connected to the drive machine and the computer to set the control program, and then the roving is passed through the inlet roller device 6, the upper guide device 8, and the upper follow-up compensation device 9. , speed-changing roller device 7, lower guide device 8 and lower follow-up compensation device 9, and finally connect the roving to the winding machine. In this way, the arrangement of the roving on the spinning machine that can be used for the production of "cloud yarn" is completed, and then the machine can be started to operate the spinning operation. At this time, the feed roller device 6, speed-changing roller device 7 and winding machine will start to rotate; the feed roller device 6 will pull the roving downward from the roving tube at a constant speed. The constant pulling speed can make the roving tube release the roving at a constant speed, avoiding the speed-changing roller device 7 in The release speed of the roving tube is changed during the execution of the variable speed drafting roller, resulting in uneven roving drafting force and end breakage; the variable speed roller device 7 will execute the speed change according to the set program, and the variable speed roller device 7 will change the relative speed of the drafting roller passing through it, so that the variable speed roller device 7 can perform variable speed control on the roving, so that the roving is drafted into a yarn with a set fluffiness by the drafting roller, and the running time of the variable speed roller device 7 at this speed can make the roving be drafted into a yarn of a set length by the drafting roller, and the variable speed roller device 7 is controlled to run relatively slowly, The roving can be drawn into a more fluffy yarn by the drafting roller, and the speed-changing roller device 7 can be controlled to run relatively quickly, so that the roving can be drawn into a more slender yarn by the drafting roller; and when the speed-changing roller device 7 is controlled to run relatively quickly, the running speed of the yarn after passing through the speed-changing roller device 7 is accelerated, the yarn is extended, and the tension is reduced. At this time, the lower follow-up compensation device 9 will move according to the program, so that the extended yarn is compensated by the lower follow-up compensation device 9, so that the extended yarn maintains the tension, and the yarn is prevented from being wound around other mechanical mechanisms during operation;When the speed-changing roller device 7 is controlled to run relatively slowly, the running speed of the yarn after passing through the speed-changing roller device 7 slows down, the yarn shortens, and the tension increases. At this time, the lower follow-up compensation device 9 will move according to the program, so that the shortened yarn is released by the lower follow-up compensation device 9, so that the shortened yarn reduces the tension and avoids yarn breakage. The feeding speed of the roving passing through the feed roller device 6 is constant, and the roving between the feed roller device 6 and the speed-changing roller device 7 will gradually gather here because of the relatively slow speed of the drafting roller. That is, the roving at this position cannot be processed by the drafting roller at a certain speed, which will cause aggregation and reduce the tension. At this time, the upper follow-up compensation device 9 will run according to the program, so that the upper follow-up compensation device 9 compensates the roving at this position to keep the tension of the roving at this position. Similarly, if the speed-changing roller device 7 increases the speed of its drafting roller, the roving at this position will release the roving at this position to keep its tension. In this way, the roving can pass through the drafting roller with the set speed and running time, and the roving can produce a variety of spun yarns with set fluffiness and length, and produce this kind of fancy yarn. In addition, the production process can maintain the stable delivery of the yarn, and improve the quality of producing such fancy yarn. ;

[0039] By adopting a wire feed roller device and a speed-changing roller device with a constant running speed, the speed-changing roller device can stretch the roving at a set speed and duration, so that the roving can have properties of settable fluffiness and length, and the roving can form yarn segments with a variety of set lengths and a variety of set fluffiness. In subsequent weaving, the weaving positions can be arranged according to a regular pattern, and the woven fabric has a light and fluffy touch due to the fluffiness of the yarn. The woven pattern and flower pattern and their overall visual effect have a three-dimensional and mottled look, breaking the uniformity of conventional yarns and forming a new type of yarn with a unique aesthetic.

[0040] Example 2

[0041] like Figure 4 As shown, the wire feed roller device 6 includes a wire feed bucket 61, a wire feed shaft 62, a first rubber roller 63 and a first conveying roller 64. The wire feed bucket 61 is fixedly connected to the upper side of the first fixed frame 2. The wire feed bucket 61 is trumpet-shaped. The wire feed bucket 61 is a rounded internal structure to protect the coarse yarn from being cut by sharp edges when passing through, and to protect the adhesion of the coarse yarn fibers. Two wire feed shafts 62 are rotatably connected to the first fixed frame 2. The wire feed shafts 62 are both horizontally arranged in the left and right directions. The wire feed shafts 62 are parallel to each other. The wire feed shafts 62 are D-shaped shafts. The wire feed shaft 62 is used to connect to the main shaft of the spinning frame. The first wire feed shaft 62 is fixedly connected to the first rubber roller 63 on the front side, and the first conveying roller 64 is fixedly connected to the wire feed shaft 62 on the rear side.

[0042] The roving is passed from the roving tube through the wire feed bucket 61, and passes between the first rubber roller 63 and the first conveying roller 64, and then the wire feed shaft 62 is connected to the wire feed main shaft of the spinning frame through its D-shaped shaft structure and the coupling. After starting the machine, the spinning frame main shaft will drive the wire feed shaft 62 to rotate with each other, so that the first rubber roller 63 and the second conveying roller 73 transmit the roving inside downward.

[0043] like Figure 6 As shown, the speed-changing roller device 7 includes a speed-changing shaft 71, a second rubber roller 72, a second conveying roller 73, a connecting frame 74 and a servo motor 75. The fourth fixed frame 5 is rotatably connected with two speed-changing shafts 71. The speed-changing shafts 71 are all horizontally arranged in the left and right directions. The speed-changing shafts 71 are parallel to each other. The wire feed shaft 62 is a D-shaped shaft. The front side of the speed-changing shaft 71 is fixedly connected with the second rubber roller 72, and the rear side of the speed-changing shaft 71 is fixedly connected with the second conveying roller 73. A connecting frame 74 is provided on the right side of the speed-changing shaft 71. Two groups of servo motors 75 are fixedly connected to the connecting frame 74. The servo motors 75 are controlled by a program. The output shafts of the servo motors 75 are respectively connected to the two speed-changing shafts 71 through couplings, so that the speed-changing shaft 71 can be controlled by the servo motor 75 to change the speed.

[0044] The roving will be stretched by the second rubber roller 72 and the second conveying roller 73, and the output speed of the servo motor 75 will be changed, and the second rubber roller 72 and the second conveying roller 73 will also change; if the output speed of the servo motor 75 is reduced, the second rubber roller 72 and the second conveying roller 73 will reduce the speed of the stretching rollers for the roving, so that the roving will be stretched into a more fluffy state; if the output speed of the servo motor 75 is increased, the second rubber roller 72 and the second conveying roller 73 will increase the speed of the stretching rollers for the roving, so that the roving will be stretched into a tighter state; by controlling the duration of the servo motor 75 after the speed is changed, the state of the roving being stretched by the roller will also be maintained for a certain length; in this way, the roving can be stretched by the roller in a controllable and settable state, and the yarn can be arranged according to the set value of the servo motor 75 to form cloud yarn.

[0045] like Figure 5 , Figure 9-12 As shown, the guiding device 8 includes an upper guide wheel 81 and a lower guide wheel 82, the upper guide wheel 81 is rotatably connected to the upper side of the second fixed frame 3 and the third fixed frame 4 respectively, and the lower side of the second fixed frame 3 and the third fixed frame 4 is rotatably connected to the lower guide wheel 82, and each set of upper guide wheels 81 and lower guide wheels 82 is used for guiding the yarn when the follow-up compensation device 9 is in operation.

[0046] The upper guide wheel 81 and the lower guide wheel 82 can guide the passing yarn when the follow-up compensation device 9 is running.

[0047] like Figure 5 , Fig. 9 and Fig.11 As shown, the follow-up compensation device 9 includes a first moving pair 91, a U-shaped frame 92, a guide block 93 and a first electric push rod 94. The first moving pair 91 is in two groups. The first moving pair 91 is respectively installed on the second fixed frame 3 and the third fixed frame 4. The first moving pair 91 is horizontally arranged in the front-to-back direction. The moving parts of the first moving pair 91 are fixedly connected with the U-shaped frame 92. The front side of the U-shaped frame 92 is fixedly connected with the guide block 93. The rear sides of the second fixed frame 3 and the third fixed frame 4 are fixedly connected with the first electric push rod 94. The first electric push rod 94 is horizontally arranged in the front-to-back direction. The first electric push rod 94 is servo-controlled. The propulsion members of the first electric push rod 94 are respectively connected to the adjacent U-shaped frames 92.

[0048] When the speed-changing roller device 7 is controlled to run relatively fast, the running speed of the yarn after passing through the speed-changing roller device 7 is accelerated, the yarn is elongated, and the tension is reduced. At this time, the first electric push rod 94 on the lower side will move according to the program, and the first electric push rod 94 on the lower side will drive the U-shaped frame 92 on the lower side and the guide block 93 connected thereto to run forward, so that the elongated yarn passes through the lower guide device 8 and is stretched to the front side at this position, so that the elongated yarn maintains the tension, and the yarn is prevented from being wound around other mechanical mechanisms during operation; and when the speed-changing roller device 7 is controlled to run relatively slowly, the running speed of the yarn after passing through the speed-changing roller device 7 is slowed down, the yarn is shortened, and the tension is increased. At this time, the first electric push rod 94 on the lower side will move according to the program, so that the shortened yarn is retracted to the rear side through the lower guide device 8 at this position, so that the shortened yarn reduces the tension, and the yarn is prevented from being wound around other mechanical mechanisms during operation. The yarn at this position is not subjected to the treatment of the drawing roller at a certain speed, and will be gathered, and the tension will be reduced. At this time, the first electric push rod 94 on the upper side will operate according to the program, so that the roving with reduced tension will be stretched to the front side through the upper guide device 8 at this position, so that the roving at this position maintains the tension. Similarly, if the speed-changing roller device 7 increases the speed of the drawing roller, the roving at this position will maintain its tension. The first electric push rod 94 on the upper side will retract the roving at this position to the rear side to keep the roving at this position. In this way, the yarn can maintain the tension and constant pulling force during the process of passing through the drawing rollers of different speeds of the speed-changing roller device 7.

[0049] By adopting a follow-up compensation device that automatically adjusts the yarn tension change in cooperation with the speed-changing roller device, the yarn can maintain its own tension before and after passing through the speed-changing drafting roller, avoiding the speed-changing drafting that is difficult to set due to different tensions caused by speed change, thereby ensuring the yarn quality during the speed-changing drafting roller.

[0050] Example 3

[0051] like Figure 1 , Figure 7 and Figure 8 As shown, it also includes a voltage-variable wire-out device 10, which includes a mounting frame 101, a wire-out shaft 102, a third rubber roller 103, a wire-out bucket 104 and a voltage-regulating assembly 11. The voltage-variable wire-out device 10 is arranged at the lower front side of the external frame 1, and the voltage-variable wire-out device 10 is located below the third fixed frame 4. The voltage-variable wire-out device 10 is used to maintain a constant wire-out speed of the yarn after passing through the variable-speed drafting roller, maintain the winding speed of the external winding machine, and make the winding yarn run stably. The voltage-variable wire-out device 10 is used to adaptively pull different yarn diameters after passing through the variable-speed drafting roller. The fixed lower front side of the external frame 1 A mounting frame 101 is fixedly connected, and the mounting frame 101 is a U-shaped structure. A wire outlet shaft 102 is rotatably connected to the front side of the mounting frame 101. A third rubber roller 103 is fixedly connected to the wire outlet shaft 102. A wire outlet bucket 104 is fixedly connected to the upper side of the mounting frame 101. The wire outlet bucket 104 is trumpet-shaped, and the wire outlet bucket 104 is a rounded inner structure to protect the roving from being cut by sharp edges when passing through, and to protect the adhesion of the roving fibers. A pressure regulating component 11 is provided at the mounting frame 101, and the pressure regulating component 11 is used to cooperate with the third rubber roller 103 to automatically adjust the traction pressure on the yarn so that the yarn can be pulled out at a constant speed.

[0052] The third rubber roller 103 and the voltage regulating component 11 are connected to the outlet spindle of the spinning frame, and the running speed of the outlet spindle of the spinning frame is controlled, so that the third rubber roller 103 and the voltage regulating component 11 can output the wire at a constant speed to keep the external winding machine winding at a constant speed; and the voltage regulating component 11 will cooperate with the operation of the variable speed roller device 7 through the program, and the yarn diameter of the yarn after passing through the variable speed roller device 7 will change. The voltage regulating component 11 will respond with a delay according to the coordinated program and running speed, so that the voltage regulating component 11 can adapt to yarns of different diameters for constant pressure traction, so that the yarn can be pulled out by the voltage regulating component 11 and the third rubber roller 103 with constant pressure.

[0053] like Figure 1 and Figure 8As shown, the pressure regulating assembly 11 includes a second moving pair 111, a displacement frame 112, an extension frame 113, a second electric push rod 114, a displacement shaft 115, a third conveying roller 116 and a universal coupling 117. The second moving pair 111 is fixedly connected to both sides of the mounting frame 101. The second moving pair 111 is horizontally arranged in the front-to-back direction. The moving parts of the second moving pair 111 are fixedly connected with the displacement frame 112. The front side of the displacement frame 112 is rotatably connected with the displacement shaft 115. The rear side of the mounting frame 101 is An extension frame 113 is fixedly connected to the side, and a second electric push rod 114 is fixedly connected to the extension frame 113. The second electric push rod 114 is horizontally arranged in the front-to-back direction, and the second electric push rod 114 is servo-controlled. The propulsion member of the second electric push rod 114 is connected to the rear side of the displacement frame 112, and a third conveying roller 116 is fixedly connected to the displacement shaft 115. A universal coupling 117 is connected to the displacement shaft 115, and the displacement shaft 115 is connected to the outlet main shaft of the spinning frame through the universal coupling 117.

[0054] The second electric push rod 114 will cooperate with the operation of the speed-changing roller device 7 through a program, and the yarn diameter of the yarn after passing through the speed-changing roller device 7 will change. The second electric push rod 114 will respond with a delay according to the coordinated program and the operating speed, so that the second electric push rod 114 drives the displacement frame 112 to move when responding, thereby driving the third conveying roller 116 to move. The rotation of the third conveying roller 116 after movement will be carried out through the universal coupling 117, so that the third conveying roller 116 can change the distance with the third rubber roller 103, so as to adapt to yarns of different diameters for constant pressure traction, so that the yarn can be pulled out by the third conveying roller 116 and the third rubber roller 103 with constant pressure.

[0055] like Fig.14As shown, it also includes a voltage stabilizing device 12, which includes a frame 121, a voltage stabilizing plate 122, a third moving pair 123, a pushing plate 124, a voltage stabilizing wheel 125 and a third electric push rod 126. The voltage stabilizing device 12 is arranged in the middle of the front side of the external frame 1. The voltage stabilizing device 12 is used to stabilize the friction and pressure of the roving entering the speed-changing roller device 7, and maintain the speed-changing point of the speed-changing roller device 7 when the roving is drafted. At the same time, the voltage stabilizing device 12 forms a holding force on the roving before the drafting roller, ensuring that the roving is drafted in the area of ​​the voltage stabilizing device 12. The frame 121 is fixedly connected to the middle of the front side of the external frame 1. The frame A pressure stabilizing plate 122 is fixedly connected to the inner side of the front side wall 121, and a third moving pair 123 is fixedly connected to both sides of the middle part of the frame 121. The third moving pair 123 is horizontally arranged in the front-to-back direction. A push plate 124 is fixedly connected between the moving parts of the third moving pair 123. The facing surfaces of the push plate 124 and the pressure stabilizing plate 122 are rotatably connected with a pressure stabilizing wheel 125. A third electric push rod 126 is fixedly connected to the rear side of the frame 121. The third electric push rod 126 is horizontally arranged in the front-to-back direction. The third electric push rod 126 is servo-controlled, and the moving part of the third electric push rod 126 is connected to the moving part of the third moving pair 123.

[0056] According to the diameter of the coarse yarn of the stretching roller, the third electric push rod 126 is controlled so that the third electric push rod 126 drives the push plate 124 to move through its moving part, thereby changing the distance between the push plate 124 and the pressure stabilizing plate 122. In this way, when the speed changing roller device 7 is stretching the coarse yarn, the push plate 124 and the pressure stabilizing plate 122 can maintain the holding force on the coarse yarn through the pressure stabilizing wheel 125, and concentrate the speed changing points of the coarse yarn when being stretched by the roller, thereby reducing the overall force on the coarse yarn when being stretched by the roller.

[0057] By adopting an adjustable spacing between the pressure stabilizing plate and the pushing plate of the pressure stabilizing device, the pushing plate and the pressure stabilizing plate can maintain the holding force on the roving through the pressure stabilizing wheel when the speed changing roller device is drawing the roving, and concentrate the speed changing points of the roving when being drawn by the roller, thereby reducing the overall force on the roving when being drawn by the roller.

[0058] like Fig.13As shown, it also includes a monitoring device 13, which includes a pressure sensor 131 and an arc-shaped guide frame 132. The monitoring device 13 is respectively arranged on the front side of the guide block 93. The monitoring device 13 is used to monitor the tension state of the yarn when it is subjected to the drafting roller of the speed-changing roller device 7 and after the drafting roller, so as to control the two groups of the first electric push rods 94 to fine-tune the position of the guide block 93 in time, so that the yarn can maintain the required tension and tension. The front side of the guide block 93 is fixedly connected with a pressure sensor 131, and the front side of the pressure sensor 131 is fixedly connected with an arc-shaped guide frame 132, and the arc-shaped guide frame 132 is a smooth structure with a low friction coefficient.

[0059] When the variable speed roller device 7 performs variable speed drafting on the coarse yarn, the follow-up compensation device 9 of the upper and lower parts will perform residual position compensation on the yarn to maintain the tension of the yarn, and the pressure sensor 131 will detect the tension of the yarn. The pressure sensor 131 will fine-tune the movement of the first electric push rod 94 through the program to keep the pressure of the yarn acting on the pressure sensor 131 within a reasonable range, thereby further ensuring the tension of the yarn during the variable speed drafting roller.

[0060] Through the cooperation of the inlet roller device, the speed-changing roller device, the guide device, the follow-up compensation device, the voltage-changing outlet device, the voltage-stabilizing device and the monitoring device, the roving can be subjected to a settable speed-changing drafting roller, so that the roving has a set fluffiness and fluffiness length, and the tension of the yarn before and after the speed-changing drafting roller can be maintained, thereby ensuring the accuracy of the set value when the roving is subjected to the speed-changing drafting roller.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spinning frame for producing "cloud yarn", comprising an external frame (1), characterized in that: The uppermost portion of the front side of the external frame (1) is fixedly connected to a first fixing frame (2), the upper portion of the front side of the external frame (1) is fixedly connected to a second fixing frame (3), the lower portion of the front side of the external frame (1) is fixedly connected to a third fixing frame (4), and the lower portion of the front side of the external frame (1) is fixedly connected to a fourth fixing frame (5); The first fixed frame (2) is provided with a wire feed roller device (6), and the wire feed roller device (6) is used to pull the roving downward at a constant speed; The fourth fixed frame (5) is provided with a speed-changing roller device (7), and the speed-changing roller device (7) is used for electrically controlling the speed of the rollers for drafting the roving; The second fixing frame (3) and the third fixing frame (4) are both provided with a guiding device (8); The second fixed frame (3) and the third fixed frame (4) are both provided with a follow-up compensation device (9), and the follow-up compensation device (9) and the guide device (8) are divided into an upper and lower part. The follow-up compensation device (9) is used to advance and release the excess length of the yarn passing through the drafting roller of the variable speed roller device (7), and the guide device (8) is used to guide the yarn during the advancement and release process of the follow-up compensation device (9).

2. The spinning frame that can be used for producing "cloud yarn" according to claim 1 is characterized in that: The wire feed roller device (6) comprises a wire feed bucket (61), the wire feed bucket (61) is fixedly connected to the upper side of the first fixed frame (2), two wire feed shafts (62) are rotatably connected to the first fixed frame (2), a first rubber roller (63) is fixedly connected to the front wire feed shaft (62), and a first conveying roller (64) is fixedly connected to the rear wire feed shaft (62).

3. The spinning frame that can be used for producing "cloud yarn" according to claim 2 is characterized in that: The speed-changing roller device (7) comprises a speed-changing shaft (71), two speed-changing shafts (71) are rotatably connected to the fourth fixed frame (5), a second rubber roller (72) is fixedly connected to the front speed-changing shaft (71), and a second conveying roller (73) is fixedly connected to the rear speed-changing shaft (71), a connecting frame (74) is provided on the right side of the speed-changing shaft (71), two groups of servo motors (75) are fixedly connected to the connecting frame (74), and the output shafts of the servo motors (75) are respectively connected to the two speed-changing shafts (71) through couplings.

4. The spinning frame that can be used for producing "cloud yarn" according to claim 3 is characterized in that: The guide device (8) comprises an upper guide wheel (81), wherein the upper guide wheel (81) is rotatably connected to the upper sides of the second fixed frame (3) and the third fixed frame (4), respectively, and the lower sides of the second fixed frame (3) and the third fixed frame (4) are both rotatably connected to lower guide wheels (82).

5. The spinning frame that can be used for producing "cloud yarn" according to claim 4 is characterized in that: The follow-up compensation device (9) comprises a first moving pair (91), the first moving pair (91) is in two groups, the first moving pair (91) is respectively mounted on the second fixed frame (3) and the third fixed frame (4), a U-shaped frame (92) is fixedly connected between the moving parts of the first moving pair (91), a guide block (93) is fixedly connected to the front side of the U-shaped frame (92), the second fixed frame (3) and the third fixed frame (4) are fixedly connected to the rear side of the first electric push rod (94), and the pushing parts of the first electric push rod (94) are respectively connected to the adjacent U-shaped frames (92).

6. The spinning frame that can be used for producing "cloud yarn" according to claim 5 is characterized in that: The invention also comprises a voltage-variable wire-out device (10), the voltage-variable wire-out device (10) being arranged at the lower front side of the external frame (1), the voltage-variable wire-out device (10) being located at the lower side of the third fixed frame (4), the voltage-variable wire-out device (10) being used to keep the wire-out speed of the yarn constant after passing through the variable-speed drafting roller, a mounting frame (101) being fixedly connected at the lower front side of the external frame (1), a wire-out shaft (102) being rotatably connected at the front side of the mounting frame (101), a third rubber roller (103) being fixedly connected at the wire-out shaft (102), a wire-out bucket (104) being fixedly connected at the upper side of the mounting frame (101), a voltage-regulating assembly (11) being provided at the mounting frame (101), the voltage-regulating assembly (11) being used to cooperate with the third rubber roller (103) to automatically regulate the traction pressure on the yarn.

7. The spinning frame that can be used for producing "cloud yarn" according to claim 6 is characterized in that: The voltage regulating assembly (11) comprises a second moving pair (111), the second moving pair (111) is fixedly connected to both sides of the mounting frame (101), a displacement frame (112) is fixedly connected between the moving parts of the second moving pair (111), a displacement shaft (115) is rotatably connected to the front side of the displacement frame (112), an extension frame (113) is fixedly connected to the rear side of the mounting frame (101), a second electric push rod (114) is fixedly connected to the extension frame (113), a propulsion member of the second electric push rod (114) is connected to the rear side of the displacement frame (112), a third conveying roller (116) is fixedly connected to the displacement shaft (115), a universal coupling (117) is connected to the displacement shaft (115), and the displacement shaft (115) is connected to the outlet main shaft of the spinning frame through the universal coupling (117).

8. The spinning frame that can be used for producing "cloud yarn" according to claim 7 is characterized in that: It also comprises a voltage stabilizing device (12), which is arranged at the middle part of the front side of the external frame (1), and is used to stabilize the friction and pressure of the roving entering the speed-changing roller device (7). The middle part of the front side of the external frame (1) is fixedly connected to a frame (121), the inner side of the front side wall of the frame (121) is fixedly connected to a voltage stabilizing plate (122), the middle two sides of the frame (121) are fixedly connected to a third moving pair (123), the moving parts of the third moving pair (123) are fixedly connected to a push plate (124), the facing surfaces of the push plate (124) and the voltage stabilizing plate (122) are both rotatably connected to a voltage stabilizing wheel (125), the rear side of the frame (121) is fixedly connected to a third electric push rod (126), and the moving part of the third electric push rod (126) is connected to the moving part of the third moving pair (123).

9. The spinning frame that can be used for producing "cloud yarn" according to claim 8 is characterized in that: The invention also comprises a monitoring device (13), wherein the monitoring device (13) is respectively arranged on the front side of the guide block (93), and the monitoring device (13) is used to monitor the tension state of the yarn when it is subjected to the drafting roller of the speed-changing roller device (7) and after the drafting roller. The front side of the guide block (93) is fixedly connected with a pressure sensor (131), and the front side of the pressure sensor (131) is fixedly connected with an arc-shaped guide frame (132).

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