High-stability weft yarn frame of rapier loom
By adopting an equilateral triangular base and a rotatable rotating component design in the weft yarn frame, combined with pin fixing, the problem of instability of the weft yarn frame is solved, achieving higher stability and alignment between the weft yarn bobbin and the yarn guide, and reducing safety risks.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG REINBACH ROLLER CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-08
AI Technical Summary
The existing weft yarn frame has a short crossbar design, which causes the center of gravity of the weft yarn tube to be biased to one side, making the overall structure unstable, prone to tipping over, and posing a safety hazard.
The base adopts an equilateral triangular design, with rotatable rotating parts and crossbars on the column. The upper end of the column is fixed by the top plate to increase stability. The rotating parts are equipped with holes and pins to limit their position, ensuring that the weft yarn bobbin is located directly above the center of the base, thus enhancing stability.
It improves the overall stability of the weft yarn creel, reduces the risk of tipping over, improves the alignment between the weft yarn bobbin and the yarn guide, and reduces the possibility of yarn breakage.
Smart Images

Figure CN224212869U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of weft yarn scaffolding technology, specifically to a high-stability weft yarn scaffolding for rapier looms. Background Technology
[0002] my country is a major producer and exporter of textiles, and its textile industry has become highly competitive after years of development. Textiles have length and width. The length direction of a textile is the warp, and the direction perpendicular to the selvage is the width, which is the weft. During the weaving process, the yarn used in the warp direction is called warp yarn, and the yarn used in the weft direction is called weft yarn. Weft yarn requires a weft yarn registry during weaving; the registry fixes the weft yarn bobbin and allows the weft yarn to be released smoothly.
[0003] The existing weft yarn frame includes a base and three uprights arranged in a triangle on the base. Two of the uprights have symmetrically arranged rotating components that can rotate around the central axis of the uprights. The rotating components include a lower fixed plate, an upper fixed plate, and a bushing. The lower and upper fixed plates are fixed to the uprights, and the bushing is fitted onto the upright between the upper and lower fixed plates. A crossbar is provided on the rotating component, and weft yarn bobbins are installed on the crossbar. A yarn guide is provided on the other upright at the position corresponding to the crossbar. However, in order to avoid collisions between crossbars of the same height during rotation, the length of the crossbar is designed to be relatively short. This results in the weft yarn bobbins being installed on the crossbars and the center of gravity shifting to one side during yarn release, leading to poor overall stability, easy tipping, and potential safety accidents. Utility Model Content
[0004] To address the aforementioned technical shortcomings, this invention provides a highly stable weft yarn frame for rapier looms, offering improved stability.
[0005] This utility model discloses a high-stability rapier loom weft frame, including an equilateral triangular base. A first column, a second column, and a third column are vertically arranged at the three corners of the equilateral triangular base. A first rotating component, rotatable around the central axis of the first column, is spaced upwards on the first column. A first horizontal bar is arranged on the side of the first rotating component closest to the second column. A second rotating component, rotatable around the central axis of the second column, is spaced upwards on the second column. A second horizontal bar is arranged on the side of the second rotating component closest to the first column. The first and second horizontal bars are staggered vertically. A yarn guide is arranged on the third column corresponding to the positions of the first and second horizontal bars. A hanging rod facing the yarn guide is arranged at the end of the first and second horizontal bars that are close to each other. The end of the hanging rod near the yarn guide is located directly above the center of the equilateral triangular base.
[0006] The principle of the above technical solution is that the weft yarn bobbin is installed on the hanging rod. The first and second rotating parts can rotate to facilitate the installation of the weft yarn bobbin. Since the end of the hanging rod near the yarn guide is located directly above the center of the equilateral triangle base, the installed weft yarn bobbin is located directly above the center of the equilateral triangle base. Therefore, the overall stability is good during yarn feeding, and it is not easy to tip over. In addition, the weft yarn bobbin is directly facing the yarn guide, which can also improve the situation of yarn breakage.
[0007] After the weft yarn bobbin is installed, in order to prevent the weft yarn bobbin from moving, No. 1 and No. 2 rotating parts are provided with No. 1 insertion hole on their sides. No. 2 insertion hole is provided on No. 1 and No. 2 uprights at the position corresponding to No. 1 insertion hole. Pins are inserted into No. 1 and No. 2 insertion holes to restrict the rotation of No. 1 and No. 2 rotating parts. After the pins are pulled out, No. 1 and No. 2 rotating parts can rotate again.
[0008] The top of columns 1, 2, and 3 is equipped with a top plate, which fixes the top of columns 1, 2, and 3, making the overall structure more stable.
[0009] The high-stability rapier loom weft frame obtained by this invention has the advantage that the installed weft yarn bobbin is located directly above the center of the equilateral triangular base, thus ensuring good overall stability and preventing tipping. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model. Detailed Implementation
[0011] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.
[0012] Example 1:
[0013] like Figure 1As shown, this utility model discloses a high-stability rapier loom weft frame, including an equilateral triangular base 1. A first column 6, a second column 8, and a third column 2 are vertically arranged at the three corners of the equilateral triangular base 1. A top plate 7 is provided at the upper end of the first column 6, the second column 8, and the third column 2, fixing the upper ends of the first column 6, the second column 8, and the third column 2. A first rotating component 4, rotatable around the central axis of the first column 6, is arranged at intervals from bottom to top on the first column 6. A first horizontal bar 10 is provided on the side of the first rotating component 4 closest to the second column 8. A second horizontal bar 10, rotatable around the central axis of the second column 8, is arranged at intervals from bottom to top on the second column 8. Rotating component 11, the side of the second rotating component 11 near the first column 6 is provided with a second horizontal bar 12, the first horizontal bar 10 and the second horizontal bar 12 are staggered vertically, the side of the first rotating component 4 and the second rotating component 11 is provided with a first insertion hole, the first column 6 and the second column 8 are provided with a second insertion hole corresponding to the first insertion hole, the first insertion hole and the second insertion hole are provided with a pin 3 inserted in the first insertion hole and the second insertion hole, the third column 2 is provided with a yarn guide 5 corresponding to the first horizontal bar 10 and the second horizontal bar 12, the end of the first horizontal bar 10 and the second horizontal bar 12 that are close to each other is provided with a hanging rod 9 facing the yarn guide 5, the end of the hanging rod 9 that is close to the yarn guide 5 is located directly above the center of the equilateral triangular base 1.
[0014] The principle of the above technical solution is as follows: pull out the pin 3, rotate the hanging rod 9, install the weft yarn bobbin on the hanging rod 9, rotate the hanging rod 9 again, and reinsert the pin 3 to fix it. Since the end of the hanging rod 9 near the yarn guide 5 is located directly above the center of the equilateral triangle base 1, the installed weft yarn bobbin is located directly above the center of the equilateral triangle base 1. Therefore, the overall stability is good when the yarn is laid out, and it is not easy to tip over. In addition, the weft yarn bobbin is directly facing the yarn guide 5, which can also improve the situation of yarn breakage.
Claims
1. A high-stability weft yarn frame for a rapier loom, characterized in that: The system includes an equilateral triangular base (1). At the three corners of the equilateral triangular base (1) are vertically arranged columns 1 (6), 2 (8), and 3 (2). Column 1 (6) has rotating parts (4) arranged at intervals from bottom to top, each capable of rotating around the central axis of column 1 (6). A horizontal bar (10) is arranged on the side of rotating part (4) closest to column 2 (8). Column 2 (8) has rotating parts (11) arranged at intervals from bottom to top, each capable of rotating around the central axis of column 2 (8). On the rotating part (11), a second horizontal bar (12) is provided on the side near the first column (6). The first horizontal bar (10) and the second horizontal bar (12) are staggered vertically. On the third column (2), a yarn guide (5) is provided at the position corresponding to the first horizontal bar (10) and the second horizontal bar (12). A hanging rod (9) facing the yarn guide (5) is provided on the end of the first horizontal bar (10) and the second horizontal bar (12) that are close to each other. The end of the hanging rod (9) that is close to the yarn guide (5) is located directly above the center of the equilateral triangular base (1).
2. The high-stability rapier loom weft frame according to claim 1, characterized in that: The first rotating part (4) and the second rotating part (11) are provided with a first insertion hole on their sides. The first column (6) and the second column (8) are provided with a second insertion hole at the position corresponding to the first insertion hole. A pin (3) is inserted into the first insertion hole and the second insertion hole.
3. A high-stability rapier loom weft frame according to claim 1 or 2, characterized in that: The top of column 1 (6), column 2 (8) and column 3 (2) is provided with a top plate (7), which fixes the top of column 1 (6), column 2 (8) and column 3 (2).