Active thread feeding device for weaving specific lines
By adding a driving device to the end of the threaded warp shaft of the knitting machine, it becomes an active warp shaft, the problem of uneven warp speed is solved, efficient control of the knitting specific textures is achieved, and product quality is improved.
Patent Information
- Application Number
- CN202421445649.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-06-24
AI Technical Summary
The use of passive warp shafts in existing knitting machines leads to uneven warp speed, affecting the quality of the weaving molding and increasing production losses.
An active wire feeding device is designed to actively control the flow rate and speed by adding a driving device to the end of the cross-line warp shaft at the top of the frame to become an active warp shaft.
The uniform thread feeding of the control yarn for knitting specific textures is achieved, ensuring the braiding effect, reducing product defects and production losses, and improving product quality.
Smart Images
Figure CN222795883U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of wire feeding of braiding equipment, and particularly relates to an active wire feeding device for braiding specific patterns. Background Art
[0002] During the weaving process of a knitting machine, yarns for weaving different patterns need to be wound around different warp beams before entering the knitting section for weaving. When the woven product has a unit repeating pattern, the warp beams are divided into multiple groups, and each group of warp beams feeds the branched yarns into the knitting part of the corresponding pattern of the downstream equipment. Most of the warp beams of existing knitting machines are passive warp beams, which provide tension control and retention when the yarn passes through, and passively rotate under the friction between the yarn and the warp beam. However, since the same warp beam usually supplies yarns for multiple downstream devices, there are certain differences in the location of each downstream device and the tension of the yarn passing through the warp beam. Therefore, the friction force of the yarn of each downstream device on the warp beam is different, resulting in the warp beam being unable to always maintain a uniform warp feeding speed. When it is required to weave a specific pattern, this uneven warp feeding amount can easily lead to defects in the woven pattern, affecting product quality and increasing production losses. Utility Model Content
[0003] The utility model aims to provide an active thread feeding device for weaving specific patterns, so as to solve the problem that the knitting machine has defects in weaving specific patterns due to the use of passive warp beams, and the defective rate of products increases.
[0004] The utility model is realized by the following technical solutions:
[0005] The utility model proposes an active thread feeding device for weaving specific patterns, the structure of which includes a frame and a warp beam, the frame is provided with a support rod for the warp beam, the warp beam is wound with control yarn for weaving specific patterns, a mounting seat is provided on the support rod at the top of the frame, a driving device is provided on the mounting seat on one side, the warp beam includes a thread-passing warp beam and an active warp beam, the thread-passing warp beam is separately arranged on the support rod below the active warp beam, the active warp beam is mounted at the middle position of the top end of the frame, and the active warp beam is fixedly connected to the driving device;
[0006] Based on the above scheme, a driving device is added to the end of the warp beam on the top of the frame, so that the passive warp beam on the top is transformed into an active warp beam, thereby actively controlling the warp feed amount and warp feed speed of the warp beam so that the control yarn for weaving specific patterns is always evenly provided to the downstream machine, thereby ensuring the weaving effect, effectively reducing product defects, reducing production losses, and thereby improving product quality.
[0007] Furthermore, a recessed portion is provided on the support rod, and rolling bearings are provided at both ends of the warp beam, and the rolling bearings are fixed to the recessed portion. This design facilitates replacement of the warp beam or adjustment of the position of the warp beam, and also facilitates switching of the warp beam between the active warp beam and the passing warp beam.
[0008] Preferably, there are multiple active warp shafts, and the control yarn wound on each active warp shaft is used to weave different patterns. A U-shaped support frame is provided on the mounting seat. When it is necessary to switch the active warp shaft for weaving another pattern, the driving device is connected to the active warp shaft wound with the corresponding control yarn, and the remaining active warp shafts are detached from the driving device and the rolling bearings at their ends are mounted in the U-shaped support frame. This design can conveniently switch the active warp shafts required for weaving different patterns, and is conducive to the direct switching of the replaced active warp shaft to the passing warp shaft for use, which is very convenient.
[0009] Preferably, the driving device is provided in multiple groups, each group of the driving device is fixedly installed relative to the mounting seat, and the number of the driving device groups is determined according to the number of paths of the controlled yarn. This design can ensure that the yarns for weaving specific patterns are all in a uniform speed feeding state, further ensuring the weaving effect of the specific patterns.
[0010] Preferably, yarn positioning rings are evenly distributed on the active warp beam to ensure that each control yarn passes through the warp beam individually without shifting.
[0011] Furthermore, the driving device includes a driving motor and a gear box, the output shaft of the driving motor is connected to the gear box, the gear box is provided with a transmission shaft, and the transmission shaft is connected to the end of the active warp beam. This design helps the driving device to more stably adjust the rotation speed of the active warp beam.
[0012] Preferably, the driving motor is a forward and reverse motor to provide a variety of yarn winding methods and facilitate the adjustment of yarn tension.
[0013] Furthermore, the driving device also includes a control box, which is used to set and adjust the rotation speed of the driving motor. This design is conducive to parameterizing the adjustment of the warp let-off amount of the active warp beam.
[0014] Beneficial Effects
[0015] One of the above technical solutions has the following advantages or beneficial effects:
[0016] By adding a driving device to the end of the warp beam on the top of the frame, the warp beam with passive wire feeding on the top is turned into an active warp beam, thereby actively controlling the warp feeding amount and warp feeding speed of the warp beam so that the control yarn for weaving specific patterns is always evenly provided to the downstream machine, thereby ensuring the weaving effect of specific patterns, effectively reducing product defects, reducing production losses, and thereby improving product quality.
[0017] By configuring the driving device as a combination of a driving motor and a gear box, the rotation speed of the active warp beam can be adjusted in multiple levels and more stably, thereby achieving a better weaving effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:
[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0020] Figure 2 For this utility model Figure 2 A partial enlarged schematic diagram of
[0021] In the figure: frame 1; support rod 11; recessed portion 111; warp beam 2; thread-passing warp beam 21; active warp beam 22; rolling bearing 201; yarn positioning ring 202; mounting seat 3; U-shaped support frame 4; driving device 5; driving motor 51; gear box 52; transmission shaft 521; sleeve 522. DETAILED DESCRIPTION
[0022] The present invention is further described in detail below in conjunction with the embodiments, but the implementation manner of the present invention is not limited thereto.
[0023] The utility model provides an active wire feeding device for weaving specific patterns, and the structure thereof comprises a frame 1 and a warp beam 2, wherein a support rod 11 of the warp beam 2 is provided on the frame 1, a recess 111 is provided on the support rod 11, a mounting seat 3 is provided on the support rod 11 at the top of the frame 1, a U-shaped support frame 4 is provided on the mounting seat 3, and a driving device 5 is provided on the mounting seat 3 on one side; the driving device 5 comprises a driving motor 51, a gear box 52 and a control box (not shown in the drawings), the driving motor 51 is configured as a forward and reverse motor, the output shaft of the driving motor 51 (not shown in the drawings) is connected to the gear box 52, and the gear box 52 is provided with a transmission shaft 521; the control box is connected to the driving motor 51 signal, and a panel for setting and adjusting the parameters of the driving motor 51 is provided on the control box, so as to realize parameterized adjustment of the warp feeding amount of the warp beam 2. The driving device 5 is arranged in a plurality of groups, and each group of the driving device 5 is fixedly installed relative to the mounting seat 3. The number of the driving device 5 is determined according to the number of yarn lines required to be controlled for weaving specific patterns. For example, when weaving straight lines, the number of yarn lines required to be controlled is two lines at the edges of the straight lines. Then, the driving device 5 is arranged in two groups to ensure that each line of yarn for weaving the straight lines is in a controllable and uniform feeding state, so that the edges of the straight lines on the woven fabric are straight.
[0024] The control yarns for weaving specific patterns are wound around the warp beams 2, and are arranged in multiple groups according to the number of control yarns. The warp beams 2 in this embodiment include two groups; rolling bearings 201 are arranged at both ends of the warp beams 2, and the rolling bearings 201 are fixed to the recessed portions 111 to facilitate replacement of the warp beams 2 or adjustment of the positions of the warp beams 2; each group of the warp beams 2 includes a passing warp beam 21 and an active warp beam 22; the passing warp beams 21 are arranged on the support rods 11 below the active warp beams 22, and the passing warp beams 21 are The passive warp beam is used to maintain the tension of the yarn; the active warp beam 22 is mounted in the middle position of the top of the frame 1, and the yarn positioning rings 202 are evenly distributed on the active warp beam 22. The yarn positioning rings 202 can also be evenly distributed on the passing warp beam 21 as needed to ensure that each controlled yarn supplied to the corresponding downstream equipment is passed through the line separately without interfering with each other; the end of the active warp beam 22 located outside the rolling bearing 201 is fixedly connected to the transmission shaft 521 of the corresponding driving device 5 through bolts or sleeves 522. Preferably, there are multiple active warp shafts 22 corresponding to the same group of driving devices 5, and the control yarn wound on each active warp shaft 22 is used to weave different patterns. When it is necessary to switch the active warp shaft 22 for weaving another pattern, the driving device 5 is connected to the active warp shaft 22 wound with the corresponding control yarn, and the remaining active warp shafts 22 are detached from the driving device 5 and the rolling bearings 201 at their ends are mounted in the U-shaped support frame 4. The active warp shaft 22 that is not connected to the driving device 5 can be used as a spare or switched to the passing warp shaft 21.
[0025] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the present invention.
Claims
1. An active thread feeding device for weaving specific patterns, the structure of which includes a frame and a warp beam, the frame is provided with a support rod for the warp beam, and the warp beam is wound with a control yarn for weaving specific patterns, characterized in that: A mounting seat is provided on the support rod at the top of the frame, and a driving device is provided on the mounting seat on one side. The warp beam comprises a passing warp beam and an active warp beam. The passing warp beam is separately arranged on the support rod below the active warp beam. The active warp beam is mounted in the middle position of the top end of the frame, and the active warp beam is fixedly connected to the driving device.
2. The active thread feeding device for weaving specific patterns according to claim 1, characterized in that: A recessed portion is provided on the support rod, and rolling bearings are provided at both ends of the warp beam, and the rolling bearings are fixed to the recessed portion.
3. The active thread feeding device for weaving specific patterns according to claim 2, characterized in that: There are multiple active warp shafts, and the control yarn wound on each active warp shaft is used to weave different patterns. A U-shaped support frame is provided on the mounting seat. When it is necessary to switch the active warp shaft for weaving another pattern, the driving device is connected to the active warp shaft wound with the corresponding control yarn, and the remaining active warp shafts are detached from the driving device and the rolling bearings at their ends are mounted in the U-shaped support frame.
4. The active thread feeding device for weaving specific patterns according to claim 1, characterized in that: The driving devices are arranged in a plurality of groups, each group of the driving devices is fixedly mounted relative to the mounting seat, and the number of the driving devices is determined according to the number of paths of the controlled yarn.
5. The active thread feeding device for weaving specific patterns according to claim 1, characterized in that: Yarn positioning rings are evenly distributed on the active warp beam.
6. The active thread feeding device for weaving specific patterns according to claim 1, characterized in that: The driving device comprises a driving motor and a gear box, wherein the output shaft of the driving motor is connected to the gear box, and the gear box is provided with a transmission shaft, and the transmission shaft is connected to the end of the active warp beam.
7. The active thread feeding device for weaving specific patterns according to claim 6, characterized in that: The driving motor is a forward and reverse motor.
8. The active thread feeding device for weaving specific patterns according to claim 6, characterized in that: The driving device also includes a control box, which is used to set and adjust the rotation speed of the driving motor.