Tension compensation mechanism for glass fiber loom
By using a high-precision pressure sensor and a mechanically adjustable and compensated conveyor wheel in a fiberglass loom, the problem of insufficient tension response at high speeds was solved, achieving stable tension control and improving the quality of the fabric.
Patent Information
- Application Number
- CN202520430644.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-12
AI Technical Summary
At high speeds, existing fiberglass looms suffer from insufficient tension spring response, leading to problems such as warp yarn loosening and yarn tangling, which affect fabric quality.
A high-precision pressure sensor is used to detect the tension of the glass fiber thread. The tension is adjusted by compensating for the movement of the conveyor wheel. Combined with the mechanical structure of electric push rod and torsion spring, stable tension control of the glass fiber thread is achieved.
It achieves stable tension control of glass fiber yarn at high speeds, avoiding slack and yarn twisting, and improving the quality of the fabric.
Smart Images
Figure CN223823767U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of glass fiber weaving machine technology, specifically a tension compensation mechanism for a glass fiber weaving machine. Background Technology
[0002] The warp feeding system of a loom needs to mitigate the warp tension fluctuations caused by the opening and closing of the warp yarns, which is compensated for by the rear beam conveyor rollers and tension springs. When the loom speed is high, the tension springs cannot keep up with the response speed, resulting in defects such as loose warp yarns and yarn tangling. Minor issues may lead to fabric creases due to localized tension abnormalities, while severe cases can cause warp breakage, affecting the quality of the fiberglass cloth. Utility Model Content
[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a tension compensation mechanism for a glass fiber weaving machine to solve the deficiencies of the prior art.
[0004] The purpose of this utility model is achieved through the following technical solution: a tension compensation mechanism for a glass fiber weaving machine, comprising a tension adjustment mechanism installed inside the weaving machine housing. The tension adjustment mechanism includes a rear beam conveyor wheel, a tension conveyor wheel, and a compensation conveyor wheel. Both the rear beam conveyor wheel and the tension conveyor wheel are rotatably installed inside the weaving machine housing. The compensation conveyor wheel is fixedly installed inside the weaving machine housing. The glass fiber thread passes through the rear beam conveyor wheel, the tension conveyor wheel, and the compensation conveyor wheel in sequence before exiting from the weaving machine housing. A high-precision pressure sensor is embedded in the side wall of the compensation conveyor wheel. The glass fiber thread contacts the pressure shaft of the pressure sensor. The compensation conveyor wheel has the freedom of movement to press down on the glass fiber thread.
[0005] Furthermore, the tension adjustment mechanism also includes a compensating arm, the middle of which is hinged to the loom housing. The compensating conveyor wheel is mounted on the top of the compensating arm, and an electric push rod is provided at the bottom of the compensating arm. The cylinder of the electric push rod is mounted on the lower housing of the loom, and the telescopic shaft of the electric push rod contacts the compensating arm.
[0006] Furthermore, a hinge shaft is fixed in the middle of the compensating arm, and a torsion spring is fitted on the hinge shaft. The hinge shaft is rotatably connected to the loom housing through the torsion spring.
[0007] Furthermore, guide wheels are rotatably provided on both the left and right sides of the compensating conveyor wheel. The guide wheels are located above the compensating conveyor wheel, and the fiberglass thread passes around the top of the guide wheel and around the bottom of the compensating conveyor wheel.
[0008] Furthermore, the side wall of the compensation conveyor wheel is provided with an annular limiting groove, and the glass fiber line is located in the annular limiting groove.
[0009] Furthermore, the compensating conveyor wheel is provided with an installation cavity, and the side wall of the compensating conveyor wheel is provided with a detection hole, which is connected to the annular limiting groove. The pressure sensor is disposed in the installation cavity, and the pressure shaft of the pressure sensor is arranged in the annular limiting groove through the detection hole.
[0010] The beneficial effects of this utility model are:
[0011] The contact pressure between the fiberglass thread and the compensating conveyor wheel is detected by a high-precision pressure sensor to determine the conveying tension of the fiberglass thread. Then, the movement of the compensating conveyor wheel is controlled according to the detected tension to achieve tension compensation of the fiberglass thread. The tension of the fiberglass cloth is converted into a pressure signal by the high-precision pressure sensor and the compensating conveyor wheel. The high-precision pressure sensor has the advantages of high sensitivity and fast response speed, and can adapt to the speed of the loom to achieve stable and reliable tension control. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the tension compensation mechanism for a glass fiber weaving machine according to the present invention;
[0013] Figure 2 This is a schematic diagram of the internal structure of the compensation conveyor wheel in a tension compensation mechanism for a glass fiber weaving machine according to the present invention;
[0014] Figure 3 for Figure 1 Enlarged view of point A in the middle;
[0015] In the figure, 1-rear beam conveyor wheel, 2-tension conveyor wheel, 3-compensation conveyor wheel, 4-high precision pressure sensor, 5-compensation arm, 6-electric push rod, 7-hinge shaft, 8-torsion spring, 9-guide wheel, 10-annular limiting groove, 11-mounting cavity, 12-detection hole. Detailed Implementation
[0016] Example 1
[0017] like Figures 1 to 3As shown, a tension compensation mechanism for a fiberglass weaving machine includes a tension adjustment mechanism installed inside the weaving machine housing. The tension adjustment mechanism includes a rear beam conveyor wheel 1, a tension conveyor wheel 2, and a compensation conveyor wheel 3. Both the rear beam conveyor wheel 1 and the tension conveyor wheel 2 are rotatably installed inside the weaving machine housing. The compensation conveyor wheel 3 is fixedly installed inside the weaving machine housing. Fiberglass threads sequentially pass through the rear beam conveyor wheel 1, the tension conveyor wheel 2, and the compensation conveyor wheel 3 before exiting the weaving machine housing. A high-precision pressure sensor 4 is embedded in the side wall of the compensation conveyor wheel 3. The fiberglass thread contacts the pressure shaft of the pressure sensor 4. The compensation conveyor wheel 3 has the freedom to press down on the fiberglass thread. A bobbin is rotatably installed inside the weaving machine housing. The fiberglass thread is wound around the bobbin and passes through the bobbin and the rear beam... The rotation of conveyor wheel 1 and tension conveyor wheel 2 transports the glass fiber thread. Small holes are provided on the machine casing of the loom for the glass fiber thread to pass through. As the glass fiber thread passes through the small holes, it compresses the pressure shaft of the high-precision pressure sensor 4 on the compensation conveyor wheel 3. The high-precision pressure sensor 4 detects the contact pressure between the glass fiber thread and the compensation conveyor wheel 3 to determine the conveying tension of the glass fiber thread. Then, based on the detected tension, the movement of the compensation conveyor wheel 3 is controlled to achieve tension compensation of the glass fiber thread. The high-precision pressure sensor 4 and the compensation conveyor wheel 3 convert the tension of the glass fiber cloth into a pressure signal. The high-precision pressure sensor 4 has the advantages of high sensitivity and fast response speed, and can adapt to the speed of the loom to achieve stable and reliable tension control.
[0018] Example 2
[0019] Based on Example 1, such as Figure 1 and Figure 2 As shown, the side wall of the compensating conveyor wheel 3 is provided with an annular limiting groove 10. The glass fiber line is located in the annular limiting groove 10. The compensating conveyor wheel 3 is provided with an installation cavity 11. The side wall of the compensating conveyor wheel 3 is provided with a detection hole 12, which is connected to the annular limiting groove 10. The pressure sensor 4 is installed in the installation cavity 11. The pressure shaft of the pressure sensor 4 is arranged in the annular limiting groove 10 through the detection hole 12. The compensating conveyor wheel 3 passes through the annular limiting groove 10 and limits the conveying of the glass fiber line through the annular limiting groove 10, so that the glass fiber line can act stably on the pressure shaft of the pressure sensor 4, preventing the glass limiting line from detaching from the pressure shaft of the pressure sensor 4, thereby making the tension adjustment of the glass fiber line more stable.
[0020] Example 3
[0021] Based on Example 2, such as Figure 1 and Figure 3As shown, the tension adjustment mechanism also includes a compensating arm 5, the middle of which is hinged to the loom housing. A compensating conveyor wheel 3 is mounted on the top of the compensating arm 5, and an electric push rod 6 is installed at the bottom of the compensating arm 5. The cylinder of the electric push rod 6 is mounted on the lower housing of the loom, and the telescopic shaft of the electric push rod 6 contacts the compensating arm 5. A hinge shaft 7 is fixed in the middle of the compensating arm 5, and a torsion spring 8 is fitted on the hinge shaft 7. The hinge shaft 7 is rotatably connected to the loom housing through the torsion spring 8. The electric push rod 6 pushes the axis of the compensating arm 5 fitted with the hinge shaft 7 to deflect, and during the deflection of the compensating arm 5, the torsion spring 8 is compressed. The reaction force of the torsion spring 8 causes the compensating arm 5 to tend to return to its original rotation, thus keeping the compensating arm 5 in contact with the rotating electric push rod 6 and maintaining the deflection position of the compensating arm 5. Specifically, when the tension is insufficient, the electric push rod 6 extends to push the compensating arm 5 to deflect, causing the compensating conveyor wheel 3 to move downward and press down on the glass fiber line, increasing the tension of the glass fiber line. When the tension is too high, the electric push rod 6 retracts, and the compensating arm 5 returns to its original position under the reaction force of the torsion spring 8, maintaining contact with the electric push rod 6. This increases the height of the compensating conveyor wheel 3 and reduces the tension of the glass fiber line.
[0022] Example 4
[0023] Based on Example 3, such as Figure 1 As shown, guide wheels 9 are rotatably installed on both the left and right sides of the compensating conveyor wheel 3. The guide wheels 9 are located above the compensating conveyor wheel 3. The glass fiber line passes around the top of the guide wheel 9 and around the bottom of the compensating conveyor wheel 3. The two guide wheels 9 guide the conveying direction of the glass fiber line, so that the glass fiber line can pass smoothly through the annular limiting groove 10. This ensures that the glass fiber line always acts on the pressure shaft of the high-precision pressure sensor 4, thereby achieving stable tension control.
Claims
1. A tension compensation mechanism for a glass fiber weaving machine, characterized in that, The device includes a tension adjustment mechanism installed inside the housing of a weaving machine. The tension adjustment mechanism includes a rear beam conveyor wheel (1), a tension conveyor wheel (2), and a compensation conveyor wheel (3). The rear beam conveyor wheel (1) and the tension conveyor wheel (2) are rotatably installed inside the housing of the weaving machine. The compensation conveyor wheel (3) is fixedly installed inside the housing of the weaving machine. The glass fiber thread passes through the rear beam conveyor wheel (1), the tension conveyor wheel (2), and the compensation conveyor wheel (3) in sequence and then passes out of the housing of the weaving machine. A high-precision pressure sensor (4) is embedded in the side wall of the compensation conveyor wheel (3). The glass fiber thread contacts the pressure shaft of the pressure sensor (4). The compensation conveyor wheel (3) has the freedom of movement to press down the glass fiber thread.
2. The tension compensation mechanism for a glass fiber weaving machine according to claim 1, characterized in that, The tension adjustment mechanism also includes a compensating arm (5), the middle of which is hinged to the loom housing. The compensating conveyor wheel (3) is installed on the top of the compensating arm (5), and an electric push rod (6) is provided at the bottom of the compensating arm (5). The cylinder of the electric push rod (6) is installed on the lower housing of the loom, and the telescopic shaft of the electric push rod (6) contacts the compensating arm (5).
3. The tension compensation mechanism for a glass fiber weaving machine according to claim 2, characterized in that, The middle part of the compensating arm (5) is fixed with a hinge shaft (7), and a torsion spring (8) is fitted on the hinge shaft (7). The hinge shaft (7) is rotatably connected to the loom housing through the torsion spring (8).
4. The tension compensation mechanism for a glass fiber weaving machine according to claim 1, characterized in that, Guide wheels (9) are rotatably provided on both the left and right sides of the compensation conveying wheel (3). The guide wheels (9) are located above the compensation conveying wheel (3). The glass fiber line passes around the top of the guide wheel (9) and passes around the bottom of the compensation conveying wheel (3).
5. The tension compensation mechanism for a glass fiber weaving machine according to claim 4, characterized in that, The side wall of the compensation conveyor wheel (3) is provided with an annular limiting groove (10), and the glass fiber line is located in the annular limiting groove (10).
6. The tension compensation mechanism for a glass fiber weaving machine according to claim 5, characterized in that, The compensation conveying wheel (3) is provided with an installation cavity (11). The side wall of the compensation conveying wheel (3) is provided with a detection hole (12). The detection hole (12) is connected to the annular limiting groove (10). The pressure sensor (4) is provided in the installation cavity (11). The pressure shaft of the pressure sensor (4) is arranged in the annular limiting groove (10) through the detection hole (12).