Warp lining tension yarn splitting mechanism of flat knitting machine

Abstract

The utility model relates to the technical field of composite material production, in particular to a flat knitting machine warp insertion tension yarn splitting mechanism which comprises a yarn splitting support, a warp insertion support and a tension support. The warp insertion support comprises three warp insertion heald frames which are arranged in parallel, a plurality of yarn threading holes are formed in each warp insertion heald frame, each warp insertion is correspondingly arranged in one yarn threading hole, a yarn threading gap is formed between every two adjacent yarn threading holes, and each warp is correspondingly arranged in one yarn threading gap; the tension bracket comprises a first tension bracket and a second tension bracket which are arranged in parallel, a plurality of first compression rollers are arranged on the first tension bracket at equal intervals, each layer of warp lining is arranged on the corresponding first compression roller, a plurality of second compression rollers are arranged on the second tension bracket at equal intervals, and each layer of warp is arranged on the corresponding second compression roller; the first compression roller and the second compression roller are arranged in a staggered manner. The yarn layering and splitting time is greatly shortened, and the weaving efficiency of the composite material is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of composite material production, in particular to a warp lining tension yarn separation mechanism for a flat knitting machine. Background Art

[0002] Composite materials are new materials composed of two or more materials with different properties, such as carbon fiber composites, etc. They have the advantages of light weight, high strength, high modulus, and strong corrosion resistance. They have been widely used in aerospace, automotive industry, wind power generation and other fields.

[0003] Composite materials can be woven to form a three-dimensional angle interlocking structure, which can effectively prevent delamination and enhance the tensile strength and tensile elastic modulus in the warp and weft directions. Its structure generally includes warp yarns, weft yarns, interlining warps and interlining wefts. When using a flat knitting machine to weave the composite material interlining warp structure, the warp yarns and interlining warps are hung on the same pressure roller of the tension frame, which makes the management and control of different forms of yarns in the weaving process more complicated, and it is easy for the warp yarns and interlining warps to be entangled with each other. After each weft is woven, a lot of time is wasted to organize the various tension lines and fibers into layers, which greatly affects the efficiency of composite material weaving.

[0004] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as an admission or any form of implication that the information constitutes the prior art known to those skilled in the art. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a warp tension yarn separation mechanism for a flat knitting machine, which can greatly reduce the yarn layering and separation time and improve the efficiency of composite material weaving.

[0006] In order to achieve the above-mentioned object, the technical solution adopted by the present invention is: a warp lining tension yarn separation mechanism for a flat knitting machine, comprising: a yarn separation bracket, and a warp lining bracket and a tension bracket arranged on the yarn separation bracket, wherein the warp lining bracket and the tension bracket are arranged parallel to each other;

[0007] The lining warp support comprises three lining warp heald frames arranged in parallel, each of the lining warp heald frames is arranged with a plurality of yarn threading holes, each lining warp yarn is respectively arranged in one of the yarn threading holes, and yarn threading gaps are formed between adjacent yarn threading holes, and each warp yarn is respectively arranged in one of the yarn threading gaps;

[0008] The tension support includes a first tension frame and a second tension frame arranged in parallel, a plurality of first pressure rollers are arranged at equal intervals on the first tension frame, and each layer of lining warp is arranged on the corresponding first pressure roller, and a plurality of second pressure rollers are arranged at equal intervals on the second tension frame, and each layer of warp yarn is arranged on the corresponding second pressure roller, and the first pressure roller and the second pressure roller are arranged in staggered layers.

[0009] Furthermore, the first tension frame is located between the second tension frame and the lining support, and the spacing between adjacent first pressing rollers is equal to the spacing between adjacent second pressing rollers.

[0010] Furthermore, the number of the first pressing rollers or the second pressing rollers is set to 20 to 30.

[0011] Furthermore, the first tension frame and the second tension frame are both provided with a first outer frame, and both ends of the first pressing roller or the second pressing roller are respectively fixedly connected to both sides of the first outer frame in the horizontal direction.

[0012] Furthermore, each of the warp lining heddle frames includes a second outer frame and several heddle rods. The inner side of the second outer frame is hollow. Several of the heddle rods are arranged along the vertical direction and arranged in sequence in the second outer frame. Adjacent heddle rods are arranged at equal intervals.

[0013] Furthermore, a plurality of the yarn threading holes are arranged on the heddle threading rod at equal intervals along the vertical direction.

[0014] Furthermore, the cross-sectional shape of the yarn threading hole is O-shaped, C-shaped or U-shaped.

[0015] Furthermore, the first outer frame and the second outer frame both include an upper crossbeam, a lower crossbeam, a left side stop and a right side stop, the upper crossbeam and the lower crossbeam are arranged parallel to each other, the left side stop and the right side stop are arranged parallel to each other, the upper crossbeam, the left side stop, the lower crossbeam and the right side stop are connected end to end in sequence to form a rectangular structure; the two ends of the first pressure roller or the second pressure roller are respectively connected to the left side stop and the right side stop, and the two ends of the heddle rod are respectively connected to the upper crossbeam and the lower crossbeam.

[0016] Furthermore, the first outer frame and the second outer frame are set to have the same size.

[0017] Furthermore, the yarn separation bracket includes four support rods, which are arranged parallel to each other and fixedly connected to both ends of the outer side surfaces of the upper beam and the lower beam respectively.

[0018] The utility model discloses an advantageous effect is: the utility model discloses through with first pressure roller and second pressure roller staggered layer setting, supports warp yarn and lining warp respectively, thereby separates warp yarn and lining warp, effectively avoids the problem that warp yarn and lining warp are entangled with each other in the process of weaving, thereby reduces the arrangement time, through setting parallel lining warp heald frame, every silk lining warp corresponds a threading hole on lining warp heald frame, realizes the orderly arrangement of lining warp, guarantees the accuracy and efficiency of subsequent weaving. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description is only some embodiments in the utility model, and for ordinary skilled person in the art, other drawings can also be obtained according to these drawings without creating labor.

[0020] Figure 1 It is the structure schematic diagram of lining warp tension separation mechanism in the embodiment of the utility model;

[0021] Figure 2 It is the structure schematic diagram of tension support in the embodiment of the utility model;

[0022] Figure 3 It is the working schematic diagram of tension support in the embodiment of the utility model;

[0023] Figure 4 It is the structure schematic diagram of lining warp support in the embodiment of the utility model;

[0024] Figure 5 It is the working schematic diagram of lining warp support in the embodiment of the utility model.

[0025] Sign significance: 01, lining warp;02, warp yarn;1, separation support;1a, support rod;2, lining warp support;2a, threading hole;2b, threading gap;21, lining warp heald frame;21a, second outer frame;21b, threading rod;3, tension support;31, first tension frame;31a, first pressure roller;32, second tension frame;32a, second pressure roller;33, first outer frame;33a, upper crossbeam;33b, lower crossbeam;33c, left side stop;33d, right side stop. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiment of the utility model will be described clearly and completely in the following by combining the drawings in the embodiment of the utility model, obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] like Figures 1 to 5 The illustrated flat knitting machine interlining tension yarn separation mechanism comprises: a yarn separation bracket 1, and an interlining bracket 2 and a tension bracket 3 arranged on the interlining bracket 1, wherein the interlining bracket 2 and the tension bracket 3 are arranged parallel to each other;

[0030] The lining warp support 2 includes three lining warp heald frames 21 arranged in parallel. Each lining warp heald frame 21 is arranged with a plurality of yarn threading holes 2a. Each lining warp yarn 01 is respectively arranged in a yarn threading hole 2a. A yarn threading gap 2b is formed between adjacent yarn threading holes 2a. Each warp yarn 02 is respectively arranged in a yarn threading gap 2b.

[0031] The tension support 3 includes a first tension frame 31 and a second tension frame 32 arranged in parallel. A plurality of first pressure rollers 31a are arranged at equal intervals on the first tension frame 31, and each layer of lining warp 01 is arranged on the corresponding first pressure roller 31a. A plurality of second pressure rollers 32a are arranged at equal intervals on the second tension frame 32, and each layer of warp yarn 02 is arranged on the corresponding second pressure roller 32a. The first pressure roller 31a and the second pressure roller 32a are arranged in staggered layers.

[0032] The utility model arranges the first pressing roller 31a and the second pressing roller 32a in staggered layers to support the warp yarn 02 and the lining warp 01 respectively, thereby separating the warp yarn 02 and the lining warp 01, effectively avoiding the problem of the warp yarn 02 and the lining warp 01 being entangled with each other during the weaving process, thereby reducing the finishing time, and by arranging the parallel lining warp heald frames 21, each lining warp 01 corresponds to a yarn threading hole 2a on the lining warp heald frame 21, thereby achieving an orderly arrangement of the lining warp 01, thereby ensuring the accuracy and efficiency of subsequent weaving.

[0033] It should be noted that the yarn separating support 1 provides a stable platform for supporting the warp support 2 and the tension support 3, ensuring the stability and reliability of the entire yarn separating mechanism, and the first and second compression rollers 31a and 32a arranged in layers allow each layer of warp 01 and warp yarn 02 to be arranged on the corresponding compression roller, avoiding entanglement with each other, and improving the efficiency and quality of knitting.

[0034] On the basis of the above embodiment, the first tension support 31 is located between the second tension support 32 and the warp support 2, and the spacing between adjacent first compression rollers 31a is equal to the spacing between adjacent second compression rollers 32a; ensuring the uniform distribution of warp 01 and warp yarn 02 on the tension support, helping to maintain the consistency of the yarn tension during the entire knitting process, reducing the knitting defects caused by uneven tension.

[0035] On the basis of the above embodiment, the number of first compression rollers 31a or second compression rollers 32a is set to 20-30; thereby being able to control more yarn layers, realizing more interweaving of warp 02 and warp 01 in unit area, thereby realizing more fine layered knitting, enhancing the density and strength of the product after knitting.

[0036] On the basis of the above embodiment, the first tension support 31 and the second tension support 32 are each provided with a first outer frame 33, and the two ends of the first compression roller 31a or the second compression roller 32a are respectively fixedly connected to the two sides of the first outer frame 33 in the horizontal direction; the outer frame provides stable support for the compression roller, allowing the first compression roller 31a and the second compression roller 32a to more accurately control the tension of the yarn, reducing the tension fluctuations caused by the position changes of the compression roller, improving the stability of the entire tension support, reducing the possible frame deformation or displacement under high tension, thereby ensuring the uniformity and consistency of the tension during the knitting process.

[0037] On the basis of the above embodiment, each warp guide 21 includes a second outer frame 21a and a plurality of guide rods 21b, the inside of the second outer frame 21a is hollow, the plurality of guide rods 21b are arranged in the second outer frame 21a along the vertical direction, and are arranged in sequence with equal spacing between adjacent guide rods 21b; the hollow inside of the second outer frame 21a provides assembly space for the guide rods 21b and protects the guide rods 21b, ensuring the consistency of the yarn tension during knitting and improving the uniformity and quality of the composite material knitting.

[0038] On the basis of the above embodiment, a plurality of yarn holes 2a are arranged on the guide rods 21b along the vertical direction with equal spacing; this helps to ensure that each warp yarn 02 bears uniform tension, ensures that the warp 01 and warp yarn 02 on the warp guide 21 are aligned with the corresponding first compression roller 31a and second compression roller 32a, reduces the wear on the yarn guide rods 21b, and ensures product quality.

[0039] On the basis of the above embodiment, the cross-sectional shape of the threading hole 2a is O-shaped, C-shaped or U-shaped; by setting the shape of the threading hole 2a, the efficiency and quality of knitting can be improved, and the damage to the yarn can be reduced; different cross-sectional shapes of the threading hole 2a can be selected according to the specific knitting requirements and the characteristics of the yarn to ensure the best knitting effect and yarn protection.

[0040] On the basis of the above embodiment, the first outer frame 33 and the second outer frame 21a each include an upper cross beam 33a, a lower cross beam 33b, a left side stop 33c and a right side stop 33d, the upper cross beam 33a and the lower cross beam 33b are arranged parallel to each other, the left side stop 33c and the right side stop 33d are arranged parallel to each other, and the upper cross beam 33a, the left side stop 33c, the lower cross beam 33b and the right side stop 33d are sequentially connected end to end to form a rectangular structure; the two ends of the first pressure roller 31a or the second pressure roller 32a are respectively connected with the left side stop 33c and the right side stop 33d, and the two ends of the heald rod 21b are respectively connected with the upper cross beam 33a and the lower cross beam 33b; by sequentially connecting the upper cross beam 33a, the lower cross beam 33b, the left side stop 33c and the right side stop 33d end to end to form a rectangular structure, a solid outer frame is provided, ensuring uniform transmission of force and enhancing the structural stability of the first tension frame 31, the second tension frame 32 and the filling heald frame 21; and the structure is simple and easy to manufacture according to production needs.

[0041] On the basis of the above embodiment, the first outer frame 33 and the second outer frame 21a are the same size; a unified manufacturing and processing method can be used to simplify the production process, reduce production complexity, and also help maintain consistency in the overall appearance of the flat knitting machine.

[0042] On the basis of the above embodiment, the yarn separating support 1 includes four support rods 1a, which are arranged parallel to each other and are fixedly connected to the two ends of the outer side surfaces of the upper cross beam 33a and the lower cross beam 33b; the parallelly arranged support rods 1a simplify the design and manufacturing process of the yarn separating support 1, making the installation process simpler and faster, reducing assembly time and improving production efficiency; and the fixed connection between the four parallel support rods 1a and the upper cross beam 33a and the lower cross beam 33b allows the filling support 2 and the tension support 3 to be assembled to the yarn separating support 1 while transmitting the tension and pressure received to the yarn separating support 1, reducing vibration and deformation during knitting.

[0043] The person skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description are only for explaining the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed for protection. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A warp tension yarn separation mechanism for a flat knitting machine, characterized in that: include: A yarn separation bracket, and a warp lining bracket and a tension bracket arranged on the yarn separation bracket, wherein the warp lining bracket and the tension bracket are arranged parallel to each other; The lining warp support comprises three lining warp heald frames arranged in parallel, each of the lining warp heald frames is arranged with a plurality of yarn threading holes, each lining warp yarn is respectively arranged in one of the yarn threading holes, and yarn threading gaps are formed between adjacent yarn threading holes, and each warp yarn is respectively arranged in one of the yarn threading gaps; The tension support includes a first tension frame and a second tension frame arranged in parallel, a plurality of first pressure rollers are arranged at equal intervals on the first tension frame, and each layer of lining warp is arranged on the corresponding first pressure roller, and a plurality of second pressure rollers are arranged at equal intervals on the second tension frame, and each layer of warp yarn is arranged on the corresponding second pressure roller, and the first pressure roller and the second pressure roller are arranged in staggered layers.

2. The flat knitting machine interlining warp tension yarn separation mechanism according to claim 1, characterized in that: The first tension frame is located between the second tension frame and the lining support, and the spacing between adjacent first pressing rollers is equal to the spacing between adjacent second pressing rollers.

3. The flat knitting machine interlining warp tension yarn separation mechanism according to claim 1, characterized in that: The number of the first pressing rollers or the second pressing rollers is set to 20 to 30.

4. The flat knitting machine interlining warp tension yarn separation mechanism according to claim 1, characterized in that: The first tension frame and the second tension frame are both provided with a first outer frame, and two ends of the first pressing roller or the second pressing roller are respectively fixedly connected to two sides of the first outer frame in a horizontal direction.

5. The flat knitting machine interlining warp tension yarn separation mechanism according to claim 4, characterized in that: Each of the lining warp heald frames includes a second outer frame and several heald rods. The inner side of the second outer frame is hollow. Several heald rods are arranged along the vertical direction and arranged in sequence in the second outer frame. Adjacent heald rods are arranged at equal intervals.

6. The flat knitting machine interlining warp tension yarn separation mechanism according to claim 5, characterized in that: A plurality of yarn threading holes are arranged on the heddle threading rod at equal intervals along the vertical direction.

7. The flat knitting machine interlining warp tension yarn separation mechanism according to claim 6, characterized in that: The cross-sectional shape of the yarn threading hole is O-shaped, C-shaped or U-shaped.

8. The flat knitting machine interlining warp tension yarn separation mechanism according to claim 5, characterized in that: The first outer frame and the second outer frame both include an upper crossbeam, a lower crossbeam, a left side stop and a right side stop, the upper crossbeam and the lower crossbeam are arranged parallel to each other, the left side stop and the right side stop are arranged parallel to each other, the upper crossbeam, the left side stop, the lower crossbeam and the right side stop are connected end to end in sequence to form a rectangular structure; the two ends of the first pressing roller or the second pressing roller are respectively connected to the left side stop and the right side stop, and the two ends of the heddle rod are respectively connected to the upper crossbeam and the lower crossbeam.

9. The flat knitting machine interlining warp tension yarn separation mechanism according to claim 8, characterized in that: The first outer frame and the second outer frame are set to have the same size.

10. The flat knitting machine interlining warp tension yarn separation mechanism according to claim 8, characterized in that: The yarn separation bracket includes four support rods, which are arranged parallel to each other and fixedly connected to the two ends of the outer side surfaces of the upper beam and the lower beam respectively.

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