A weft feeding device

Abstract

This utility model discloses a weft feeding device, including a drive control component, which includes a drive motor; a power shaft driven by the drive motor to rotate, on which several power weft rollers are fixedly mounted; several positioning weft roller assemblies, each including a positioning weft roller unit and a rotating part, the positioning weft roller unit being rotatably mounted on the rotating part; and several mounting seats, one end of the rotating part being rotatably mounted on one end of each mounting seat, and further provided with an elastic element, one end of which is connected to the rotating part, and the other end of which is connected to the mounting seat. This weft feeding device, under the action of the elastic element, ensures that each positioning weft roller assembly remains pressed down during operation, ensuring the weft yarn remains stable. Simultaneously, it can drive the movement of multiple weft yarns with a single motor, reducing equipment costs and improving installation convenience.

Description

Technical Field

[0001] This utility model relates to the field of textile equipment technology, and in particular to a weft feeding device. Background Technology

[0002] In the modern textile industry, mechanical looms are commonly used to produce webbing. During the loom's operation, interlaced warp and weft yarns are used to form the webbing product. Whether the weft yarn can maintain a uniform speed and stable tension throughout the loom's operation directly affects the final webbing's density and smoothness.

[0003] To maintain weft yarn tension and movement speed, Chinese invention patent application CN119640470A, entitled "A Weft Feeding Device," discloses a weft feeding device including a mounting plate with a limiting groove; a rotating plate, one end of which is rotatably mounted on the mounting plate, and the other end of which has an upper weft feeding wheel; and a follower plate, the middle of which is rotatably mounted on the mounting plate, with lower weft feeding wheels at both ends of the follower plate. The lower weft feeding wheels are located below the upper weft feeding wheels, and their surfaces can abut against the surfaces of the upper weft feeding wheels. This patent uses the weight of the upper weft feeding wheels to press the weft yarn onto the lower weft feeding wheels to ensure weft yarn tension. However, relying solely on the weight of the upper weft feeding wheels to press and tighten the weft yarn may still cause it to loosen, thus affecting its tension and movement speed. Furthermore, each upper weft feeding wheel requires a motor drive, and multiple motors are needed when multiple weft yarns are used, making installation inconvenient and costly. Utility Model Content

[0004] The purpose of this invention is to solve the technical problems of easy loosening of weft yarns when relying solely on the gravity of the upper weft feeding wheel for clamping, and the need for multiple motors to drive multiple weft yarns. To solve the above problems, this invention provides a weft feeding device that can ensure that the weft yarns maintain stable tension and uniform speed, while relying on a single motor to drive the movement of multiple weft yarns. This ensures stable weft yarn movement, reduces equipment costs, and improves installation convenience.

[0005] The specific technical solution adopted by this utility model is as follows:

[0006] A weft feeding device, characterized in that it includes a drive control component, the drive control component including a drive motor; a power shaft, the power shaft being driven to rotate by the drive motor, and a plurality of power weft rollers fixedly mounted on the power shaft; a plurality of positioning weft roller assemblies, the positioning weft roller assembly including a positioning weft roller unit and a rotating part, the positioning weft roller unit being rotatably mounted on the rotating part; a plurality of mounting seats, one end of the rotating part being rotatably mounted on one end of the mounting seat, and further provided with an elastic element, one end of the elastic element being connected to the rotating part, and the other end being connected to the mounting seat; the weft feeding device has a working state and a maintenance state, when the weft feeding device is in the working state, the positioning weft roller unit abuts against the power weft rollers, and the position of the elastic element is lower than the position where the rotating part is connected to the mounting seat; when the weft feeding device is in the maintenance state, the position of the elastic element is higher than the position where the rotating part is connected to the mounting seat. The working state refers to the state when the weft feeding device is working, in which the positioning weft wheel unit and the power weft wheel are pressed together, and the weft yarn is held between the positioning weft wheel unit and the power weft wheel; the maintenance state refers to the state when the positioning weft wheel assembly is raised and the positioning weft wheel unit is not in contact with the power weft wheel.

[0007] By configuring the drive shaft, one motor can drive multiple drive weft rollers, meaning one motor can simultaneously move multiple weft yarns, reducing the number of motors used and lowering equipment costs. In the operating state, because the elastic element is positioned below the connection point between the rotating part and the mounting base, the tension of the elastic element exerts a downward rotational force on the rotating part. Combined with the weight of the rotating part and the positioning weft roller unit, the positioning weft roller assembly maintains a consistent downward force, ensuring close contact between the positioning weft roller unit and the drive weft roller, compressing the weft yarn and ensuring flatness and stability during weft yarn movement. In the maintenance state, because the elastic element is positioned above the connection point between the rotating part and the mounting base, the tension of the elastic element causes the rotating part to generate an upward flipping force. This upward flipping force balances the weight of the rotating part and the positioning weft roller unit, allowing the rotating part to remain in a raised position, facilitating yarn placement or equipment maintenance by operators.

[0008] Furthermore, the positioning weft wheel unit includes a micro-motion plate and several positioning weft wheels. The micro-motion plate is rotatably connected to the rotating part, and the positioning weft wheels are mounted on the micro-motion plate. When the positioning weft wheel assembly is in the working state, the positioning weft wheels abut against the power weft wheels. Because the micro-motion plate is rotatably connected to the rotating part, when a gap is generated between the positioning weft wheel assembly and the power weft wheels due to tolerances or the movement process, the micro-motion plate can generate a slight rotation to eliminate the gap and always maintain the contact between the positioning weft wheels and the power weft wheels.

[0009] Furthermore, the number of positioning weft wheels is two. Two positioning weft wheels ensure that the weft yarn is pressed down at two points, resulting in greater stability.

[0010] Furthermore, the micro-motion plate is provided with a limiting member, and the rotating part is provided with a limiting groove. The limiting groove accommodates the limiting member, and the size of the limiting member is smaller than the size of the limiting groove. Through the cooperation of the limiting member and the limiting groove, the rotation of the micro-motion plate can be controlled within a certain range, preventing the free rotation of the micro-motion plate.

[0011] Furthermore, the rotating part is also provided with an operating part, which is located at the other end of the rotating part that is not connected to the mounting base. The operator can hold the operating part and push it upward to make the rotating part rotate upward relative to the mounting base. When rotating upward, the operating part can be integrally formed with the rotating part, or it can be a separate component fixedly connected to the rotating part.

[0012] Furthermore, a yarn guide is also installed on the rotating part, and the yarn guide has a yarn guide hole. The weft yarn passes through the yarn guide hole and then enters between the positioning weft wheel and the power weft wheel, which can adjust and support the direction of the weft yarn, and further ensure the smooth and stable delivery of the yarn.

[0013] Furthermore, the weft feeding device also includes a fixing plate with a through hole for the power shaft. A bearing is installed inside the through hole, and one end of the power shaft is mounted in the bearing. The fixing plate and bearing ensure greater stability at the end of the power shaft, preventing vibration during rotation.

[0014] Furthermore, the fixing plate is provided with a mounting guide rod, and the mounting base is provided with a guide rod through hole, through which the mounting guide rod passes. The cooperation between the mounting guide rod and the guide rod through hole allows the mounting base to form a single unit with the fixing plate, making assembly and disassembly more convenient.

[0015] Furthermore, the drive control component also includes a transmission component, which comprises a drive sprocket, a driven sprocket, and a chain. The drive sprocket is drive-connected to the output shaft of the drive motor, the chain meshes with the drive sprocket and the driven sprocket, and the driven sprocket is drive-connected to the power shaft. Through this transmission component, the direction of the motor's output power transmission can be changed, thereby enabling the motor to be mounted on the same side of the power and positioning weft wheel assemblies, reducing the overall space of the equipment. The transmission component can also be implemented by the meshing of a drive gear and a driven gear, or by the drive wheel driving the driven wheel via a belt. These two transmission methods, as well as other common transmission methods in the mechanical field, are all replacements for conventional technical means for those skilled in the art.

[0016] Furthermore, the drive control component also includes a driver, which is electrically connected to the drive motor. The driver enables more precise movement of the motor.

[0017] Furthermore, the number of the powered weft roller and the positioning weft roller assembly is four. Depending on the requirements of different webbing, the number of the powered weft roller and the positioning weft roller can also be five, six or more.

[0018] Furthermore, the elastic element is a tension spring, with one end fixed to the rotating part and the other end hanging on the mounting base. By using the tension spring, when the positioning weft wheel assembly needs to be replaced, the connection between the tension spring and the mounting base can be released, facilitating the replacement of the positioning weft wheel assembly.

[0019] Furthermore, the mounting base is provided with a clamping part, which includes a fixing hole and a locking part, the locking part including a locking screw. By adjusting the locking screw, the size of the fixing hole can be adjusted, facilitating the mounting base to be installed on the mounting shaft fixedly connected to the weaving machine, thereby installing the weft feeding device onto the weaving machine. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a perspective view of the weft feeding device in working condition according to an embodiment of the present utility model;

[0022] Figure 2 This is a perspective view of the weft feeding device in maintenance mode according to an embodiment of the present invention;

[0023] Figure 3 This is a partial exploded view of the weft feeding device according to an embodiment of the present utility model;

[0024] Figure 4 This is a perspective view of the positioning weft wheel assembly according to an embodiment of the present utility model;

[0025] Figure 5 This is a rear view of the positioning weft wheel assembly installed on the mounting base according to an embodiment of this utility model;

[0026] Figure 6 This is a partially exploded view of the drive control component and power shaft assembly according to an embodiment of the present invention. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0029] like Figure 1-3As shown, a weft feeding device includes a drive control component 1, which includes a drive motor 11; a power shaft 2, which is driven to rotate by the drive motor 11, and a plurality of power weft wheels 3 are fixedly mounted on the power shaft 1; a plurality of positioning weft wheel assemblies 4, in an optional embodiment of this application, the number of power weft wheels 3 and positioning weft wheel assemblies 4 is 4; the positioning weft wheel assembly includes a positioning weft wheel unit 41 and a rotating part 42, the positioning weft wheel unit 41 being rotatably mounted on the rotating part 42; a plurality of mounting seats 5, one end of the rotating part 42 being rotatably mounted on one end of the mounting seat 42, and an elastic element 6 is also provided, one end of the elastic element 6 being connected to the rotating part 42, and the other end being connected to the mounting seat 5. The connection includes an elastic element 6, which is a tension spring; a fixed plate 7, which has a through hole for the power shaft, and a bearing 8 inside the through hole. One end of the power shaft 2 is installed in the bearing 8. When the power shaft 8 rotates, it can drive the inner ring of the bearing 8 to rotate. The outer ring of the bearing 8 is fixedly connected to the fixed plate 7 to maintain stability. Based on the setting of the bearing 8 and the fixed plate, the other end of the power shaft 2 is also supported, so the rotation is more stable and less prone to up-and-down shaking. The fixed plate 7 is provided with a mounting guide rod 71, and the mounting seat 5 is provided with a guide rod through hole 51. The mounting guide rod 71 passes through the guide rod through hole 51. Through the cooperation of the mounting guide rod 71 and the guide rod through hole 51, several mounting seats 5 can form a whole, making the equipment more compact and stable.

[0030] Figure 1 This is a perspective view of the weft feeding device in operation. At this time, the positioning weft wheel unit 41 abuts against the power weft wheel 3, and the position of the elastic element 6 is lower than the position where the rotating part 42 is connected to the mounting base 5. Figure 2 This is a perspective view of the weft feeding device in maintenance mode. At this time, the position of the elastic element 6 is higher than the position where the rotating part 42 is connected to the mounting base 5, the positioning weft wheel assembly 4 is raised, and the positioning weft wheel unit 41 is not in contact with the power weft wheel 3.

[0031] The weft feeding device of this application allows one drive motor 11 to drive multiple powered weft rollers 3, reducing equipment costs and space requirements for installation on the weaving machine. Simultaneously, the positioning of the elastic element 6 ensures that when the weft feeding device is in operation, the tension of the elastic element 6, combined with the gravity of the rotating part 42 and the positioning weft roller unit 41, maintains a consistent downward pressure on the positioning weft roller assembly 4. This ensures that the positioning weft roller unit 41 maintains close contact with the powered weft rollers 3, compressing the weft yarn and ensuring its flatness and stability during movement. In the maintenance state, the tension of the elastic element 6 causes the rotating part 42 to generate an upward flipping force. This upward flipping force balances the gravity of the rotating part 42 and the positioning weft roller unit 41, allowing the rotating part 42 to be stably held in the raised position, facilitating yarn placement or equipment maintenance by operators.

[0032] like Figure 4 As shown, the positioning weft wheel assembly 4 includes a positioning weft wheel unit 41 and a rotating part 42. The positioning weft wheel unit 41 is rotatably mounted on the rotating part 42. The positioning weft wheel unit 41 includes a micro-motion plate 411 and a plurality of positioning weft wheels 412. In one embodiment of this utility model, the number of positioning weft wheels 412 can be two; the middle part of the micro-motion plate 411 is rotatably connected to the rotating part 42, and the positioning weft wheels 412 are installed on both ends of the micro-motion plate 411; the micro-motion plate 411 is provided with a limiting member 4111, and the rotating part 42 is provided with a limiting groove 421, the limiting groove 421 accommodates the limiting member 4111, the size of the limiting member 4111 is smaller than the size of the limiting groove 421, the cooperation between the limiting groove 421 and the limiting member 4111 ensures that the rotation of the micro-motion plate 411 is limited to a certain range, which can prevent the positioning weft wheels from flipping due to working vibration, etc.; the rotating part 42 is provided with an operating part 422, the operating part 422 is located at the other end of the rotating part 42 that is not connected to the mounting base 5; the rotating part 42 is also equipped with a yarn guide 423, and the yarn guide 423 is provided with a yarn guide hole 4231. Figure 1 As shown, when in the working state, the positioning weft wheel 412 abuts against the power weft wheel 3.

[0033] like Figure 5 As shown, the positioning weft wheel assembly 4 is rotatably mounted on one end of the mounting base 5, one end of the tension spring 6 is fixed on the rotating part 42, the mounting base 5 is provided with a hook part 52, and the other end of the tension spring 6 is hooked on the hook part 2; the mounting base 5 is provided with a clamping part, the clamping part includes a fixing hole 531 and a locking part 532, and the locking part 532 includes a locking screw 5321.

[0034] like Figure 6 As shown, the drive control assembly 1 includes a drive motor 11, a housing 12, a driver 13, and a transmission assembly including a drive sprocket 141, a driven sprocket 142, and a chain 143. The housing 12 houses the driver 13 and the transmission assembly. The drive sprocket 141 is drivenly connected to the output shaft of the drive motor 11. The chain 143 meshes with the drive sprocket 141 and the driven sprocket 142. The driven sprocket 142 is drivenly connected to the power shaft 2. The driver 13 is electrically connected to the drive motor 11. In other embodiments of this application, the transmission assembly may also consist of a drive gear and a driven gear meshing, or it may consist of a drive wheel driving a driven wheel via a belt.

[0035] Finally, it should be noted that the embodiments disclosed in this utility model are merely preferred embodiments of this utility model and are only used to illustrate the technical solutions of this utility model, not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this invention.

Claims

1. A weft feeding device, characterized in that, The device includes a drive control component, which includes a drive motor; a power shaft driven by the drive motor to rotate, on which several power weft rollers are fixedly mounted; several positioning weft roller assemblies, each including a positioning weft roller unit and a rotating part, the positioning weft roller unit being rotatably mounted on the rotating part; and several mounting seats, one end of the rotating part being rotatably mounted on one end of each mounting seat, and also equipped with an elastic element, one end of which is connected to the rotating part, and the other end of which is connected to the mounting seat. The weft feeding device has a working state and a maintenance state. When the weft feeding device is in the working state, the positioning weft roller unit abuts against the power weft rollers, and the position of the elastic element is lower than the position where the rotating part is connected to the mounting seat. When the weft feeding device is in the maintenance state, the position of the elastic element is higher than the position where the rotating part is connected to the mounting seat.

2. The weft feeding device according to claim 1, characterized in that, The positioning weft wheel unit includes a micro-motion plate and several positioning weft wheels. The micro-motion plate is rotatably connected to the rotating part. The positioning weft wheels are mounted on the micro-motion plate. When the positioning weft wheel assembly is in the working state, the positioning weft wheels abut against the power weft wheel.

3. The weft feeding device according to claim 2, characterized in that, The number of positioning weft wheels is two.

4. The weft feeding device according to claim 2, characterized in that, The micro-motion plate is provided with a limiting member, and the rotating part is provided with a limiting groove. The limiting groove accommodates the limiting member, and the size of the limiting member is smaller than the size of the limiting groove.

5. The weft feeding device according to claim 1, characterized in that, The rotating part is also provided with an operating part, which is located at the other end of the rotating part that is not connected to the mounting base; a yarn guide is provided with a yarn guide hole.

6. The weft feeding device according to claim 1, characterized in that, The weft feeding device also includes a fixing plate, which has a through hole for the power shaft. A bearing is installed in the through hole for the power shaft, and one end of the power shaft is installed in the bearing.

7. The weft feeding device according to claim 1, characterized in that, The drive control component also includes a transmission component, which includes a drive sprocket, a driven sprocket, and a chain. The drive sprocket is connected to the output shaft of the drive motor, the chain meshes with the drive sprocket and the driven sprocket, and the driven sprocket is connected to the power shaft.

8. The weft feeding device according to claim 7, characterized in that, The drive control component also includes a driver, which is electrically connected to the drive motor.

9. The weft feeding device according to claim 1, characterized in that, The elastic element is a tension spring, one end of which is fixed to the rotating part, and the other end is hung on the mounting base.

10. The weft feeding device according to any one of claims 1-9, characterized in that, The mounting base is provided with a clamping part, which includes a fixing hole and a locking part, and the locking part includes a locking screw.

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