Weft accumulator device suitable for air jet loom

Abstract

The utility model relates to the technical field of weft accumulators, and discloses a weft accumulator device suitable for an air jet loom, which comprises a support and a weft accumulator body arranged on the support, a yarn storage drum is arranged on the weft accumulator body, and a tightness adjusting mechanism used for adjusting the tightness of weft yarns in the weft yarn winding process is arranged on the weft accumulator body. According to the weft storage device, the tightness of the weft yarn output from the yarn storage drum on the weft storage device body is adjusted through the tightness adjusting mechanism in the process that the weft yarn is wound on the weft storage device body, the situation that the weft yarn is wound and knotted or broken due to the fact that the tightness is not uniform when the weft yarn is wound is effectively avoided, and therefore the quality of the weft yarn is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of weft accumulators, in particular to a weft accumulator device suitable for air jet looms. Background Art

[0002] Air jet looms are shuttleless looms that use a jet of air to pull the weft yarn through the shed. The working principle is that air is used as the weft insertion medium, and the compressed air jet creates frictional traction on the weft yarn, pulling it through the shed. The jet of air creates the weft insertion process.

[0003] Before using an air-jet loom to weave cotton yarn, a weft feeder is needed to pass the yarn from the raw material coil into the weft feeder for short-term storage. During the process of winding the yarn on the weft feeder, the wound yarn is prone to uneven tightness. When the yarn is too loose, it will cause the yarn to be entangled or knotted, which is not conducive to the transportation and use of the yarn. When the yarn is too tight, it will be stretched and the yarns in the yarn will break, affecting the quality of the yarn, which needs to be improved urgently. Utility Model Content

[0004] The purpose of the utility model is to provide a weft accumulator device suitable for an air jet loom, which can adjust the tension of the weft yarn output from the yarn storage drum on the weft accumulator body during the weft yarn winding process of the weft accumulator body through the tension adjustment mechanism, effectively avoiding the weft yarn from being tangled or broken due to different tensions during winding, thereby effectively ensuring the quality of the yarn.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A weft accumulator device suitable for an air jet loom comprises a bracket and a weft accumulator body mounted on the bracket, wherein the weft accumulator body is provided with a yarn storage drum and a tension adjustment mechanism for adjusting the tension of the weft yarn during the weft yarn winding process.

[0007] By adopting the above technical solution, the tension adjustment mechanism is used to adjust the tension of the weft yarn output from the yarn storage drum on the weft accumulator body during the weft yarn is wound on the weft accumulator body, effectively avoiding the weft yarn from being tangled or broken due to different tightness when winding, thereby effectively ensuring the quality of the yarn.

[0008] The utility model is further configured as follows: the tension adjustment mechanism includes an adjustment chamber fixedly connected to the weft storage device body, a yarn inlet is provided on the side of the adjustment chamber opposite to the yarn storage drum, a yarn outlet is provided on the other side of the adjustment chamber, and a tension adjustment part is provided between the yarn inlet and the yarn outlet.

[0009] By adopting the above technical solution, the weft yarn is output from the yarn storage drum and enters the adjusting cavity through the yarn inlet of the adjusting cavity, and then passes through the tension adjusting part and is output from the yarn outlet. In the process of passing through the tension adjusting part, if the weft yarn is too loose or too tight, the tightness of the weft yarn is adjusted to ensure that the output weft yarn will not be too loose or too tight, thereby ensuring that the weft yarn will not be entangled, knotted or broken when it is wound.

[0010] The present invention is further configured as follows: the tension adjusting portion comprises two rows of yarn conveying rollers arranged in parallel up and down, and the two rows of yarn conveying rollers are arranged alternately in sequence.

[0011] By adopting the above technical solution, the weft yarn entering the regulating cavity passes through the upper and lower rows of yarn conveying rollers in turn and forms a curved and winding conveying mode for conveying, which not only saves space but also can store more weft yarn under a certain conveying distance, indirectly increasing the storage capacity of the weft storage device.

[0012] The utility model is further configured as follows: one side of the axis of each yarn conveying roller is rotatably connected to the side wall of the adjustment cavity through a yarn conveying roller shaft, and each yarn conveying roller shaft is connected to the adjustment drive mechanism.

[0013] By adopting the above technical solution, the adjustment drive mechanism drives the yarn conveying roller to rotate by driving the shaft of each yarn conveying roller to rotate. Since one side of the axis of each yarn conveying roller is rotatably connected to the side wall of the adjustment chamber through the yarn conveying roller shaft, the yarn conveying roller is in an eccentric state when rotating. The eccentric rotation of the yarn conveying roller can realize the adjustment of the tensioning distance of the weft yarn on two adjacent yarn conveying rollers. By adjusting the tensioning distance of the weft yarn on two adjacent yarn conveying rollers, the tightness of the weft yarn conveyed on two adjacent yarn conveying rollers can be adjusted. The adjustment process is simple and the operation is convenient.

[0014] The utility model is further configured as follows: the adjusting drive mechanism includes an adjusting drive gear that is coaxial with and fixedly connected to the shafts of each yarn feeding roller, the adjusting drive gear on the upper row yarn feeding roller shaft and the adjusting drive gear on the lower row yarn feeding roller shaft are respectively meshed with rack one and rack two arranged in parallel, one end of rack one and rack two are both meshed with the driving gear, the other ends of rack one and rack two are both meshed with the supporting gear, the driving gear and the supporting gear are respectively rotatably connected to the adjusting chamber through the driving shaft and the supporting shaft, and the driving shaft is connected to the adjusting motor fixed outside the adjusting chamber.

[0015] By adopting the above technical solution, when the tension needs to be adjusted, the adjusting motor is started, and the adjusting motor drives the driving shaft connected to it to rotate. When the driving shaft rotates, it drives the driving gear to rotate. When the driving gear rotates, the rack 1 and rack 2 engaged with it move horizontally relative to each other. When the rack 1 and rack 2 move horizontally, they drive the adjusting driving gears engaged with them to rotate. When each adjusting driving gear rotates, it drives the yarn feeding roller shaft to rotate. When each yarn feeding roller shaft rotates, it drives the yarn feeding roller to rotate. When each yarn feeding roller rotates, the tension of the weft yarn is adjusted.

[0016] The utility model is further configured as follows: the yarn inlet and the yarn outlet are both provided with a yarn guide roller group, the yarn guide roller group includes a yarn guide roller 1 and a yarn guide roller 2, and the yarn guide roller 1 and the yarn guide roller 2 are respectively rotatably connected to the side wall of the regulating chamber through a yarn guide roller shaft 1 and a yarn guide roller shaft 2.

[0017] By adopting the above technical solution, the yarn guide roller group is used to adjust the angle of the weft yarn entering and exiting the adjusting cavity, so that the weft yarn will not rub against the edges of the yarn inlet and yarn outlet during the process of entering and exiting the adjusting cavity, thereby avoiding quality problems caused by wear of the weft yarn due to friction, and further effectively ensuring the quality of the yarn.

[0018] The utility model is further configured as follows: the yarn guide position between the first yarn guide roller and the second yarn guide roller in the two yarn guide roller groups is respectively opposite to the center of the yarn inlet and the yarn outlet.

[0019] By adopting the above technical solution, the yarn guide positions are respectively opposite to the centers of the yarn inlet and the yarn outlet to further ensure that the weft yarn does not contact the yarn inlet and the yarn outlet when entering or outputting from the yarn outlet.

[0020] The present invention is further configured as follows: an observation window is provided on the side wall of one side of the regulating cavity, and the observation window is sealed by a transparent cover.

[0021] By adopting the above technical solution, the setting of the observation window makes it easy for people to observe the conveying status and tension adjustment process of the weft yarn in the adjustment cavity at any time, and the setting of the transparent cover can meet the observation needs while also playing a dust-proof role.

[0022] The present invention is further configured as follows: each of the yarn conveying rollers is provided with a pressure sensor, and the pressure sensor is electrically connected to the regulating motor via a controller.

[0023] By adopting the above technical solution, the pressure sensor is used to monitor in real time the squeezing force of the weft yarn on the yarn conveying roller during the conveying process. The controller can obtain the tightness information of the yarn based on the monitored squeezing force, and then judge whether the tightness adjustment is required based on the tightness information. When the tightness adjustment is required, the control adjustment motor is started, thereby realizing the corresponding automatic operation of the tightness adjustment. When the tightness adjustment is not required, the control adjustment motor can be kept turned off, without manual operation, with a high degree of automation and low labor intensity.

[0024] The utility model is further configured to include an emergency stop button electrically connected to the controller.

[0025] By adopting the above technical solution, the emergency stop button is used to force the control motor to shut down in special circumstances such as faults or yarn breakage, thereby avoiding the controller from mistakenly issuing tension adjustment instructions due to special circumstances such as faults or yarn breakage, and effectively improving the safety of the device.

[0026] The beneficial effects of the utility model are:

[0027] 1. The utility model uses a tension adjustment mechanism to adjust the tension of the weft yarn output from the yarn storage drum on the weft feeder body during the winding process of the weft yarn, effectively avoiding the weft yarn from being tangled or broken due to different tensions during winding, thereby effectively ensuring the quality of the yarn.

[0028] 2. The tension adjustment part of the utility model includes two rows of yarn conveying rollers arranged in parallel above and below. The two rows of yarn conveying rollers are staggered in sequence, so that the weft yarn entering the adjustment cavity passes through the upper and lower rows of yarn conveying rollers in sequence and forms a curved and winding conveying mode for conveying. It not only saves space, but also can store more weft yarn under a certain conveying distance, indirectly increasing the storage capacity of the weft accumulator.

[0029] 3. The adjustment drive mechanism in the present invention drives the yarn feeding roller to rotate by driving the shaft of each yarn feeding roller to rotate. Since one side of the axis of each yarn feeding roller is rotatably connected to the side wall of the adjustment chamber through the yarn feeding roller shaft, the yarn feeding roller is in an eccentric state when rotating. The eccentric rotation of the yarn feeding roller can be used to adjust the tensioning distance of the weft yarn on two adjacent yarn feeding rollers. By adjusting the tensioning distance of the weft yarn on two adjacent yarn feeding rollers, the tightness of the weft yarn transported on two adjacent yarn feeding rollers can be adjusted. The adjustment process is simple and the operation is convenient.

[0030] 4. The yarn guide roller group provided at the yarn inlet and the yarn outlet of the utility model is used to adjust the angle of the weft yarn entering and exiting the regulating cavity, so that the weft yarn will not rub against the edges of the yarn inlet and the yarn outlet during the process of entering and exiting the regulating cavity, thereby avoiding quality problems caused by wear of the weft yarn due to friction, and further effectively ensuring the quality of the yarn.

[0031] 5. The utility model arranges a pressure sensor on the yarn conveying roller to monitor in real time the squeezing force of the weft yarn on the yarn conveying roller during the conveying process. The controller can obtain the tightness information of the yarn according to the monitored squeezing force, and then judge whether the tightness adjustment is needed according to the tightness information. When the tightness adjustment is needed, the control adjustment motor is started, thereby realizing the corresponding automatic operation of the tightness adjustment. When the tightness adjustment is not needed, the control adjustment motor can be kept turned off, without manual operation, with a high degree of automation and low labor intensity.

[0032] 6. The utility model provides an emergency stop button to force the control motor to shut down in special circumstances such as faults or yarn breakage, thereby avoiding the controller from mistakenly issuing tension adjustment instructions due to special circumstances such as faults or yarn breakage, and effectively improving the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 The utility model is a schematic diagram of the overall structure of a weft storage device suitable for an air jet loom.

[0035] Figure 2 The utility model is a structural schematic diagram of a tension adjustment mechanism in a weft storage device of an air jet loom.

[0036] In the figure, 1. bracket; 2. weft storage device body; 3. yarn storage drum; 4. weft yarn; 5. tension adjusting mechanism; 51. adjusting chamber; 52. yarn inlet; 53. yarn outlet; 6. tension adjusting part; 61. yarn feeding roller; 62. yarn feeding roller shaft; 7. adjusting drive mechanism; 71. adjusting drive gear; 72. rack 1; 73. rack 2; 74. driving gear; 75. supporting gear; 76. driving shaft; 77. supporting shaft; 78. adjusting motor; 8. yarn guide roller group; 81. yarn guide roller 1; 82. yarn guide roller 2; 83. yarn guide roller shaft 1; 84. yarn guide roller shaft 2; 9. observation window. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions of the present invention in conjunction with specific embodiments. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0038] like Figure 1 As shown, a weft storage device suitable for an air jet loom includes a bracket 1 and a weft storage body 2 installed on the bracket 1, a yarn storage drum 3 is provided on the weft storage body 2, and a tension adjustment mechanism 5 is provided on the weft storage body 2 for adjusting the tension of the weft yarn during the weft winding process.

[0039] Further, such as Figure 1 and Figure 2 As shown, the tension adjustment mechanism 5 includes an adjustment chamber 51 fixedly connected to the weft storage device body 2, a yarn inlet 52 is provided on the side of the adjustment chamber 51 opposite to the yarn storage drum 3, a yarn outlet 53 is provided on the other side of the adjustment chamber 51, and a tension adjustment part 6 is provided between the yarn inlet 52 and the yarn outlet 53.

[0040] Furthermore, the tension adjusting portion 6 includes two rows of yarn conveying rollers 61 arranged in parallel up and down, and the two rows of yarn conveying rollers 61 are arranged alternately in sequence.

[0041] Furthermore, one side of the axis of each yarn conveying roller 61 is rotatably connected to the side wall of the adjustment chamber 51 through a yarn conveying roller shaft 62, and each yarn conveying roller shaft 62 is connected to the adjustment drive mechanism 7.

[0042] Furthermore, the adjustment drive mechanism 7 includes an adjustment drive gear 71 that is coaxial with and fixedly connected to each yarn feeding roller shaft 62. The adjustment drive gear 71 on the upper row yarn feeding roller shaft 62 and the adjustment drive gear 71 on the lower row yarn feeding roller shaft 62 are respectively engaged with the parallel arranged rack 1 72 and rack 2 73. One end of the rack 1 72 and rack 2 73 are both engaged with the drive gear 74, and the other ends of the rack 1 72 and rack 2 73 are both engaged with the support gear 75. The drive gear 74 and the support gear 75 are respectively rotatably connected to the adjustment chamber 51 through the drive shaft 76 and the support shaft 77. The drive shaft 76 is connected to the adjustment motor 78 fixed outside the adjustment chamber 51.

[0043] Furthermore, the yarn inlet 52 and the yarn outlet 53 are both provided with a yarn guide roller group 8, and the yarn guide roller group 8 includes a yarn guide roller 1 81 and a yarn guide roller 2 82, and the yarn guide roller 1 81 and the yarn guide roller 2 82 are respectively rotatably connected to the side wall of the regulating chamber 51 through a yarn guide roller shaft 1 83 and a yarn guide roller shaft 2 84.

[0044] Furthermore, the yarn guiding positions between the first yarn guide roller 81 and the second yarn guide roller 82 in the two yarn guide roller groups 8 are opposite to the centers of the yarn inlet 52 and the yarn outlet 53 respectively.

[0045] Furthermore, an observation window 9 is provided on the side wall of the regulating chamber 51 , and the observation window 9 is sealed by a transparent cover.

[0046] Furthermore, each of the yarn conveying rollers 61 is provided with a pressure sensor, and the pressure sensor is electrically connected to the regulating motor 78 through a controller.

[0047] Furthermore, it also includes an emergency stop button electrically connected to the controller.

[0048] The working principle of the present invention is as follows: after the weft yarn is output from the yarn storage drum 3, it enters the regulating chamber 51 through the yarn inlet 52 of the regulating chamber 51, and then passes through the tension regulating part 6 and is output from the yarn outlet 53. When the weft yarn passes through the tension regulating part 6, it passes through the upper and lower rows of yarn conveying rollers 61 in the tension regulating part 6 in turn and forms a curved and winding conveying mode for conveying. The pressure sensor on the yarn conveying roller 61 monitors the squeezing force of the weft yarn on the yarn conveying roller 61 during the conveying process in real time and sends the squeezing force information to the controller. The controller can obtain the tension information of the yarn according to the monitored squeezing force, and then judge whether tension adjustment is needed according to the tension information. When tension adjustment is needed, the control regulating motor 78 is started, and after the regulating motor 78 is started, it drives the drive shaft 76 connected thereto to rotate. When the drive shaft 76 rotates, it drives the drive gear 74 to rotate. When the drive gear 74 rotates, the rack 1 72 and rack 2 73 engaged therewith move horizontally relative to each other. When the rack 1 72 and rack 2 73 move horizontally, they drive the adjusting drive gears 71 engaged therewith to rotate. When each adjusting drive gear 71 rotates, it drives the axis of each yarn feeding roller 61 to rotate. When the axis of each yarn feeding roller 61 rotates, it drives the axis of each yarn feeding roller 61 to rotate. When each yarn feeding roller 61 rotates, the tightness of the weft yarn is adjusted. When the tightness adjustment is not needed, the control adjustment motor 78 can be kept turned off. No manual operation is required, the degree of automation is high, and the labor intensity is low. The weft yarn will not be too loose or too tight after the tightness adjustment, thereby ensuring that the weft yarn will not be entangled, knotted or broken when it is wound.

Claims

1. A weft storage device adapted for an air jet loom, comprising a bracket (1) and a weft storage body (2) mounted on the bracket (1), wherein a yarn storage drum (3) is provided on the weft storage body (2), and characterized in that: The weft storage device body (2) is provided with a tension adjustment mechanism (5) for adjusting the tension of the weft yarn during the weft yarn winding process.

2. A weft accumulator device for an air jet loom according to claim 1, characterized in that: The tension adjustment mechanism (5) comprises an adjustment chamber (51) fixedly connected to the weft storage device body (2); a yarn inlet (52) is provided on a side of the adjustment chamber (51) opposite to the yarn storage drum (3); a yarn outlet (53) is provided on the other side of the adjustment chamber (51); and a tension adjustment portion (6) is provided between the yarn inlet (52) and the yarn outlet (53).

3. The weft accumulator device for an air jet loom according to claim 2, characterized in that: The tension adjustment portion (6) comprises two rows of yarn delivery rollers (61) arranged in parallel up and down, and the two rows of yarn delivery rollers (61) are arranged alternately in sequence.

4. The weft accumulator device for an air jet loom according to claim 3, characterized in that: One side of the axis of each yarn delivery roller (61) is rotatably connected to the side wall of the adjustment chamber (51) through a yarn delivery roller shaft (62), and each yarn delivery roller shaft (62) is connected to the adjustment drive mechanism (7).

5. The weft accumulator device for an air jet loom according to claim 4, characterized in that: The regulating drive mechanism (7) includes a regulating drive gear (71) coaxial with and fixedly connected to each yarn delivery roller shaft (62), the regulating drive gear (71) on the upper yarn delivery roller shaft (62) and the regulating drive gear (71) on the lower yarn delivery roller shaft (62) respectively mesh with a rack 1 (72) and a rack 2 (73) arranged in parallel, one end of each of the rack 1 (72) and the rack 2 (73) meshes with a driving gear (74), and the other ends of each of the rack 1 (72) and the rack 2 (73) meshes with a supporting gear (75), the driving gear (74) and the supporting gear (75) are rotatably connected to the regulating chamber (51) via a driving shaft (76) and a supporting shaft (77), respectively, and the driving shaft (76) is connected to an regulating motor (78) fixed outside the regulating chamber (51).

6. The weft accumulator device for an air jet loom according to claim 2, characterized in that: The yarn inlet (52) and the yarn outlet (53) are both provided with a yarn guide roller group (8), and the yarn guide roller group (8) includes a yarn guide roller 1 (81) and a yarn guide roller 2 (82), and the yarn guide roller 1 (81) and the yarn guide roller 2 (82) are rotatably connected to the side wall of the regulating chamber (51) through a yarn guide roller shaft 1 (83) and a yarn guide roller shaft 2 (84), respectively.

7. The weft accumulator device for an air jet loom according to claim 6, characterized in that: The yarn guide positions between the yarn guide roller 1 (81) and the yarn guide roller 2 (82) in the two yarn guide roller groups (8) are respectively opposite to the centers of the yarn inlet (52) and the yarn outlet (53).

8. The weft accumulator device for an air jet loom according to claim 2, characterized in that: An observation window (9) is also provided on a side wall of one side of the regulating chamber (51), and the observation window (9) is sealed by a transparent cover.

9. The weft accumulator device for an air jet loom according to claim 3, characterized in that: Each of the yarn delivery rollers (61) is provided with a pressure sensor, and the pressure sensor and the regulating motor (78) are electrically connected via a controller.

10. The weft accumulator device for an air jet loom according to claim 8, characterized in that: Also included is an emergency stop button electrically connected to the controller.

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