Warp yarn tension detection device and control method thereof

Abstract

The present application relates to the technical field of textile machinery, and in particular to a warp tension detection device and a control method thereof. A warp tension detection device comprises support frames installed on both sides of a textile frame, a tension sensing frame, a first guide roller and a second guide roller are installed between the two support frames; two tension sensing rollers are installed on the tension sensing frame, and one end of the tension sensor is fixedly supported on the tension sensor on the side, and the other end is fixed on the sensing support seat in the middle. During the unwinding process, the warp yarns on the two warp beams are guided and conveyed respectively by the first guide roller, the tension sensing roller on the corresponding side and the second guide roller. At this time, the two tension sensors can respectively detect the warp tension on the two warp beams through the corresponding tension sensing rollers, so that the subsequent controller can control and adjust the two warp beams separately through the tension data fed back by the two sensors, so as to adjust the warp tension on the two warp beams to be consistent and adjusted to the set state.

Description

Technical Field

[0001] The present application relates to the technical field of textile machinery, and in particular to a warp tension detection device and a control method thereof. Background Art

[0002] In the textile industry, in order to weave wide fabrics, it is usually necessary to use a double warp beam method to unwind and load the warp yarn. At the same time, since the tension of the warp yarn is not constant during the unwinding process, it is usually necessary to install a tension sensor to detect the tension of the warp yarn, so that the controller can adjust the unwinding speed of the warp beam through the data fed back by the tension sensor to adjust the tension of the warp yarn.

[0003] However, currently, most textile equipment usually uses only a single sensor to simultaneously detect the warp tension of the double warp beams. At this time, the detection result is a structure in which the two warp beams work together. Since the warp tensions on the two warp beams are different during the unwinding process, the controller cannot adjust the two warp beams separately to control the consistency of their tensions through the value fed back by a single sensor, which seriously affects the textile quality. Therefore, further improvements can be made. Summary of the invention

[0004] In order to be able to control and adjust the two warp beams separately so as to adjust the warp tensions on the two warp beams to be consistent and to a set state, the present application provides a warp tension detection device and a control method thereof.

[0005] In a first aspect, the present application provides a warp tension detection device, which adopts the following technical solution:

[0006] A warp tension detection device comprises support frames installed on both sides of a textile frame, a tension sensing frame and a first guide roller and a second guide roller respectively installed on both sides of the tension sensing frame are installed between the two support frames; tension sensors are installed on both sides of the tension sensing frame, a sensing support seat is installed in the middle of the tension sensing frame, tension sensing rollers are installed on both sides of the sensing support seat of the tension sensing frame, and one end of the tension sensor is fixedly supported on the tension sensor, and the other end is fixed to the sensing support seat.

[0007] By adopting the above technical solution, during the unwinding process, the warp yarns on the two warp beams are guided and transported respectively through the first guide roller, the tension sensing roller on the corresponding side and the second guide roller. At this time, the two tension sensors on the tension sensing frame can respectively detect the warp yarn tensions on the two warp beams through the corresponding tension sensing rollers, so that the subsequent controller can control and adjust the two warp beams separately through the tension data fed back by the two sensors, so as to adjust the warp yarn tensions on the two warp beams to be consistent and to the set state.

[0008] Optionally, both ends of the first guide roller are installed on the support frame through a first swing arm, both ends of the second guide roller are installed on the support frame through a second swing arm, and the first swing arm and the middle part of the second swing arm are rotatably installed on the support frame through a swing shaft; the first guide roller is installed at the top of the first swing arm, the second guide roller is installed at the top of the second swing arm, and the first swing arm and the second swing arm located on the same side are symmetrically arranged on both sides of the tension sensing frame; the tension sensing frame is installed on the support frame along the vertical sliding, and the tension sensing roller is located below the guide roller; a tension adjusting gear is coaxially fixed on each of the swing shafts, and a tension adjusting rack meshing with the corresponding tension adjusting gear is vertically fixed on the tension sensing frame on the side facing each tension adjusting gear; and the bottom end of the first swing arm and the bottom end of the second swing arm located on the same side are connected by an elastic connecting mechanism.

[0009] By adopting the above technical solution, during the warp conveying process, when the tension of the warp changes, the warp drives the first swing arm and the second swing arm to swing through the first guide roller and the second guide roller, respectively, so that the elastic connection mechanism is elastically deformed to buffer the tension change of the warp, so that the warp is not prone to yarn breakage due to excessive tension change. At the same time, the tension sensing frame and the tension sensing roller move vertically synchronously through the tension adjustment rack and the tension adjustment gear that are meshed with each other to further alleviate the tension change of the warp.

[0010] Optionally, the elastic connection mechanism includes a bidirectional ball screw installed on a support frame and a buffer spring respectively installed on two nuts in the bidirectional ball screw. The bidirectional ball screw is horizontally arranged, and the support frame is slidably installed with two slides at the position of the bidirectional ball screw along the horizontal direction. The two nuts in the bidirectional ball screw are respectively fixedly installed on the two slides, and the two buffer springs are respectively fixed at one end away from the nut at the bottom end of the first swing arm and the bottom end of the second swing arm; a tension adjustment unit for synchronously driving and adjusting the bidirectional ball screws on both sides is installed on the support frame.

[0011] By adopting the above technical solution, before use, the worker synchronously adjusts the two-way ball screws on both sides through the tension adjustment unit to control the two nuts in the two-way ball screws to move towards each other / away from each other, thereby controlling the first swing arm and the second swing arm to swing in opposite directions / opposite directions, so as to adjust the initial positions of the first guide roller, the second guide roller and the tension sensing roller, so as to complete the adjustment setting of the initial tension of the warp yarn to adapt to the tension requirements of warp yarns of different thicknesses. At the same time, during use, when the tension change of the warp yarn causes the swing arm to swing, the first swing arm and the second swing arm are elastically buffered by the buffer spring to buffer the tension change of the warp yarn.

[0012] Optionally, the tension adjustment unit includes a linkage rod rotatably installed between the two support frames, a tension adjustment motor installed on the side wall of the support frame and driving the linkage rod to rotate through a first worm gear reducer, and both ends of the linkage rod are respectively meshed with the screws in two bidirectional ball screws through gear pairs.

[0013] By adopting the above technical solution, during the adjustment process, the tension adjustment motor drives the linkage rod to rotate through the first worm gear reducer, and both ends of the linkage rod respectively drive the screws in the two bidirectional ball screws to rotate through mutually meshing gear pairs, so as to synchronously control and adjust the two bidirectional ball screws.

[0014] Optionally, the first swing arm is in a “<” shape, and the second swing arm is in a ">” shape.

[0015] Optionally, a fixed guide roller is installed on the weaving frame between the first guide roller and the warp beam, and two ends of the fixed guide roller are rotatably installed on both sides of the weaving frame respectively.

[0016] By adopting the above technical solution, during the warp conveying process, the warp on the warp beam is unwound and guided by the fixed guide roller before entering the first guide roller for subsequent guided conveying. During the subsequent unwinding process, when the first guide roller and the second guide roller are adjusting the tension, the warp on the warp beam is not prone to uncertain changes with the swing of the first guide roller, which can further ensure the stability of the unwinding and yarn feeding of the warp beam.

[0017] In a second aspect, the present application provides a warp tension control method, which adopts the following technical solution:

[0018] A warp tension control method comprises the following steps:

[0019] S1, preparing for unwinding the warp yarns on the two warp beams, and guiding and conveying the warp yarns on the two warp beams in sequence through a first guide roller, a tension sensing roller on a corresponding side, and a second guide roller;

[0020] S2, synchronously controlling and adjusting the two bidirectional ball screws through the tension adjustment motor, the first worm gear reducer and the linkage rod, so as to control the first swing arm and the second swing arm to swing in opposite directions / relative directions, so as to adjust the initial positions of the first guide roller, the second guide roller and the tension sensing roller, so as to complete the adjustment setting of the initial tension of the warp yarn;

[0021] S3. Start the unwinding of the warp yarns. At the same time, two tension sensors monitor the warp tensions of the two warp beams in real time and feed back the tension data to the controller. When the tension on the warp yarns changes, on the one hand, the first guide roller, the second guide roller and the tension sensing roller change through the elastic deformation of the buffer spring to buffer the tension change of the warp yarns. On the other hand, after the tension sensor feeds back the data to the controller, the controller adjusts and controls the unwinding speeds of the two warp yarns through two unwinding adjustment units to adjust the warp tensions on the two warp beams to be consistent and to the set state.

[0022] Optionally, side warp shaft seats are fixed on both sides of the textile frame, and a common warp shaft seat is installed between the two warp shaft seats, and both ends of the warp shaft are rotatably supported on the side warp shaft seats and the common warp shaft seat respectively; the unwinding adjustment unit includes an unwinding adjustment motor and a second worm gear reducer, the motor shaft of the unwinding adjustment motor is connected to the input shaft of the second worm gear reducer, and the output shaft of the second worm gear reducer is connected to the corresponding warp shaft.

[0023] By adopting the above technical solution, during the process in which the controller controls the warp beam to rotate, the controller drives the unwinding adjustment motor to rotate, and the unwinding adjustment motor drives the warp beam to rotate through the second worm gear reducer.

[0024] Optionally, the side warp shaft seat and the common warp shaft seat are both provided with an introduction port for guiding the installation / guiding removal of the warp shaft end rotating shaft, and a support port for rotating support and installation of the warp shaft end rotating shaft is provided in the introduction port; a horizontally arranged transmission shaft is rotatably installed on the outer side of the side warp shaft seat below the support port, a large gear and a small gear are coaxially fixed on the transmission shaft, and a primary transmission gear meshing with the large gear is fixed on the output shaft of the second worm gear reducer, and a secondary transmission gear meshing with the small gear is coaxially fixed on the warp shaft end rotating shaft.

[0025] By adopting the above technical solution, in the process of controlling the unwinding, the unwinding adjustment motor drives the warp beam to rotate and unwind through the primary transmission gear and the large gear that mesh with each other, and the small gear and the secondary transmission gear that mesh with each other. When the warp beam needs to be replaced, the worker can directly take out the warp beam through the introduction port for replacement, which can facilitate the worker to complete the replacement of the warp beam.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] During the unwinding process, the warp yarns on the two warp beams are guided and transported by the first guide roller, the tension sensing roller on the corresponding side and the second guide roller. At this time, the two tension sensors on the tension sensing frame can respectively detect the warp yarn tensions on the two warp beams through the corresponding tension sensing rollers, so that the subsequent controller can control and adjust the two warp beams respectively through the tension data fed back by the two sensors, so as to adjust the warp yarn tensions on the two warp beams to be consistent and to the set state;

[0028] During the warp conveying process, when the tension of the warp changes, the warp drives the first swing arm and the second swing arm to swing through the first guide roller and the second guide roller, respectively, so that the elastic connection mechanism undergoes elastic deformation to buffer the tension change of the warp, so that the warp is not prone to yarn breakage due to excessive tension change. At the same time, the tension sensing frame and the tension sensing roller move vertically synchronously through the tension adjustment rack and the tension adjustment gear that mesh with each other to further alleviate the tension change of the warp;

[0029] Before use, workers use the tension adjustment unit to synchronously adjust the two-way ball screws on both sides to control the two nuts in the two-way ball screws to move toward / away from each other, thereby controlling the first swing arm and the second swing arm to swing in opposite / opposite directions, so as to adjust the initial positions of the first guide roller, the second guide roller and the tension sensing roller, so as to complete the adjustment setting of the initial tension of the warp yarn to meet the tension requirements of warp yarns of different thicknesses. At the same time, during use, when the tension change of the warp yarn causes the swing arm to swing, the first swing arm and the second swing arm are elastically buffered by the buffer spring to buffer the tension change of the warp yarn. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of this application.

[0031] Figure 2 It is to show the structural diagram of the tension sensing frame.

[0032] Figure 3 It is to show the inner view of the support frame part.

[0033] Figure 4 This is an exploded view of the large gear position in the warp beam installation part.

[0034] Description of reference numerals:

[0035] 1. Textile frame; 2. Support frame; 21. First guide roller; 22. Second guide roller; 23. First swing arm; 24. Second swing arm; 25. Tension adjustment gear; 26. Tension adjustment rack; 27. Bidirectional ball screw; 28. Buffer spring; 29. ​​Vertical slide; 210. Horizontal slide; 211. Swing shaft; 3. Tension sensing frame; 31. Tension sensor; 32. Sensing support seat; 33. Tension sensing roller; 41. Linkage rod; 42. Tension adjustment motor; 43. First worm gear reducer; 5. Fixed guide roller; 6. Side warp beam seat; 61. Inlet; 62. Support port; 7. Common warp beam seat; 81. Unwinding adjustment motor; 82. Second worm gear reducer; 83. Transmission shaft; 84. Large gear; 85. Small gear; 86. Primary transmission gear; 87. Secondary transmission gear; 100. Warp beam. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-4 This application is described in further detail.

[0037] The embodiment of the present application discloses a warp tension detection device and a control method thereof.

[0038] Reference Figure 1 and Figure 2 The warp tension detection device includes a support frame 2 installed on both sides of a weaving frame 1, a tension sensing frame 3 and a first guide roller 21 and a second guide roller 22 respectively installed on both sides of the tension sensing frame 3 are installed between the two support frames 2. Tension sensors 31 are fixed on both sides of the top of the tension sensing frame 3, and a sensing support seat 32 is fixed on the tension sensing frame 3 at the middle position of the two tension sensors 31. The tension sensing frame 3 is installed with tension sensing rollers 33 on both sides of the sensing support seat 32, and one end of the tension sensing roller 33 is fixedly supported on the tension sensor 31, and the other end is fixed on the sensing support seat 32.

[0039] During the unwinding process, the warp yarns on the two warp beams 100 are guided and transported respectively through the first guide roller 21, the tension sensing roller 33 on the corresponding side and the second guide roller 22. At this time, the two tension sensors 31 on the tension sensing frame 3 can respectively detect the warp yarn tensions on the two warp beams 100 through the corresponding tension sensing rollers 33, so that the subsequent controller can control and adjust the two warp beams 100 separately through the tension data fed back by the two sensors, so as to adjust the warp yarn tensions on the two warp beams 100 to be consistent and to the set state.

[0040] Reference Figure 1 , 23, wherein a vertical slide groove 29 is opened on the opposite side of the two support frames 2, a slider is slidably arranged in the vertical slide groove 29, and the two sides of the tension sensing frame 3 are respectively fixed to the two sliders, so that the tension sensing frame 3 and the tension sensing roller 33 can be installed along the vertical sliding support frame 2.

[0041] Both ends of the first guide roller 21 are mounted on the support frame 2 through the first swing arm 23, and both ends of the second guide roller 22 are mounted on the support frame 2 through the second swing arm 24. The first swing arm 23 is in a "<" shape, and the second swing arm 24 is in a ">" shape. The first swing arm 23 and the second swing arm 24 on the same side are symmetrically mounted on the left and right sides of the tension sensing frame 3, and the middle parts of the first swing arm 23 and the second swing arm 24 are rotatably mounted on the support frame 2 through the swing shaft 211. The first guide roller 21 is mounted at the top position of the first swing arm 23, and the second guide roller 22 is mounted at the top position of the second swing arm 24. A tension adjustment gear 25 is coaxially fixed on each swing shaft 211, and correspondingly, a tension adjustment rack 26 meshing and transmitting with the corresponding tension adjustment gear 25 is vertically fixed on the tension sensing frame 3 on the side facing each tension adjustment gear 25. An elastic connection mechanism is installed on opposite sides of the two support frames 2 below the tension sensing frame 3, and the bottom end of the first swing arm 23 and the bottom end of the second swing arm 24 on the same side are connected through the elastic connection mechanism.

[0042] During the warp conveying process, when the tension of the warp changes, the warp drives the first swing arm 23 and the second swing arm 24 to swing through the first guide roller 21 and the second guide roller 22, respectively, so that the elastic connection mechanism is elastically deformed to buffer the tension change of the warp, so that the warp is not prone to yarn breakage due to excessive tension change. At the same time, the tension sensing frame 3 and the tension sensing roller 33 move vertically synchronously through the tension adjustment rack 26 and the tension adjustment gear 25 that are meshed with each other to further alleviate the tension change of the warp.

[0043] Reference Figure 1 , 3 Specifically, in this embodiment, the elastic connection mechanism includes a bidirectional ball screw 27 installed on the support frame 2 and a buffer spring 28 respectively installed on two nuts in the bidirectional ball screw 27. The bidirectional ball screw 27 is horizontally arranged, and both ends of the screw in the bidirectional ball screw 27 are rotatably installed on the support frame 2 through a screw seat. The support frame 2 is provided with a horizontal slide rail 210 near the bidirectional ball screw 27, and a slide table is slidably arranged in the horizontal slide rail 210, and the two nuts in the bidirectional ball screw 27 are respectively fixedly installed on the two slide tables. One end of the two buffer springs 28 is respectively fixedly supported on the spring seats on the two nuts in the bidirectional ball screw 27, and the other end is respectively fixedly supported on the spring seats at the bottom end of the first swing arm 23 and the bottom end of the second swing arm 24.

[0044] The support frame 2 is provided with a tension adjustment unit between two bidirectional ball screws 27. Specifically, the tension adjustment unit includes a linkage rod 41, a tension adjustment motor 42 and a first worm gear reducer 43. The two ends of the linkage rod 41 are respectively rotatably mounted on the support frames 2 on both sides, and one end of the linkage rod 41 passes through the outer side of the support frame 2 on the corresponding side. The two ends of the linkage rod 41 are respectively connected to the screws in the two bidirectional ball screws 27 through mutually meshing gear pairs at the positions near the bidirectional ball screws 27. The tension adjustment motor 42 and the first worm gear reducer 43 are both installed on the outer side of the support frame 2 penetrated by the linkage rod 41, and the input shaft of the first worm gear reducer 43 is connected to the motor shaft of the tension adjustment motor 42, and the output shaft of the first worm gear reducer 43 is connected to the linkage rod 41.

[0045] Before use, the worker uses the tension adjustment motor 42, the first worm gear reducer 43 and the linkage rod 41 to synchronously control and adjust the two-way ball screws 27 on both sides, so as to control the two nuts in the two-way ball screw 27 to move toward each other / away from each other, and then control the first swing arm 23 and the second swing arm 24 to swing in opposite directions / opposite directions, so as to adjust the initial positions of the first guide roller 21, the second guide roller 22 and the tension sensing roller 33, so as to complete the adjustment setting of the initial tension of the warp yarn to meet the tension requirements of warp yarns of different thicknesses. At the same time, during use, when the tension change of the warp yarn causes the swing arm to swing, the first swing arm 23 and the second swing arm 24 are elastically buffered by the buffer spring 28 to buffer the tension change of the warp yarn.

[0046] Reference Figure 1 In this embodiment, the spinning frame 1 is provided with a fixed guide roller 5 between the first guide roller 21 and the warp beam 100, and the two ends of the fixed guide roller 5 are rotatably mounted on both sides of the spinning frame 1. During the warp conveying process, the warp on the warp beam 100 is unwound and guided by the fixed guide roller 5 before entering the first guide roller 21, and then the subsequent guided conveying is performed. During the subsequent unwinding process, when the first guide roller 21 and the second guide roller 22 are adjusting the tension, the warp on the warp beam 100 is not prone to uncertain changes with the swing of the first guide roller 21, which can further ensure the stability of the unwinding yarn of the warp beam 100.

[0047] The embodiment of the present application also discloses a warp tension control method.

[0048] Reference Figure 1-3 The warp tension control method comprises the following steps:

[0049] S1, preparing for unwinding the warp yarns on the two warp beams 100, and guiding and conveying the warp yarns on the two warp beams 100 in sequence through the first guide roller 21, the tension sensing roller 33 on the corresponding side, and the second guide roller 22;

[0050] S2, synchronously controlling and adjusting the two bidirectional ball screws 27 through the tension adjustment motor 42, the first worm gear reducer 43 and the linkage rod 41, so as to control the first swing arm 23 and the second swing arm 24 to swing in opposite directions / relative directions, so as to adjust the initial positions of the first guide roller 21, the second guide roller 22 and the tension sensing roller 33, so as to complete the adjustment setting of the initial tension of the warp yarn;

[0051] S3. Start the unwinding of the warp yarns. At the same time, the two tension sensors 31 monitor the warp tensions of the two warp beams 100 in real time and feed back the tension data to the controller. When the tension on the warp yarns changes, on the one hand, the first guide roller 21, the second guide roller 22 and the tension sensing roller 33 change through the elastic deformation of the buffer spring 28 to buffer the tension changes of the warp yarns. On the other hand, after the tension sensor 31 feeds back the data to the controller, the controller adjusts and controls the unwinding speeds of the two warp yarns through the two unwinding adjustment units to adjust the warp tensions on the two warp beams 100 to be consistent and to the set state.

[0052] Reference Figure 1 , 4 Specifically, side warp beam seats 6 are fixed on both sides of the textile frame 1 below the first guide roller 21, and a common warp beam seat 7 is installed between the two warp beam seats 100, and both ends of the warp beam 100 are rotatably supported on the side warp beam seats 6 and the common warp beam seat 7. Among them, the side warp beam seats 6 and the common warp beam seat 7 are both provided with an introduction port 61 for guiding the installation / guiding the removal of the end shaft of the warp beam 100, and a support port 62 for rotatably supporting and installing the end shaft of the warp beam 100 is provided in the introduction port 61.

[0053] The unwinding adjustment unit includes an unwinding adjustment motor 81 and a second worm gear reducer 82. Among them, a horizontally arranged transmission shaft 83 is rotatably installed on the outer side of the side warp beam seat 6 at a position below the support port 62, and a large gear 84 and a small gear 85 are coaxially fixed on the transmission shaft 83. Correspondingly, the motor shaft of the unwinding adjustment motor 81 is connected to the input shaft of the second worm gear reducer 82, and a primary transmission gear 86 is coaxially fixed on the output shaft of the second worm gear reducer 82, and the primary transmission gear 86 is meshed with the large gear 84. A secondary transmission gear 87 is coaxially fixed on the rotating shaft at the end of the warp beam 100, and the secondary transmission gear 87 is meshed with the small gear 85 for transmission.

[0054] In the process of controlling the unwinding, the unwinding regulating motor 81 drives the warp beam 100 to rotate and unwind through the second worm gear reducer 82, the primary transmission gear 86 and the large gear 84 meshing with each other, and the small gear 85 and the secondary transmission gear 87 meshing with each other. When the warp beam 100 needs to be replaced, the worker can directly take out the warp beam 100 through the introduction port 61 for replacement, which can facilitate the worker to complete the replacement work of the warp beam 100.

[0055] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A warp tension detection device, characterized in that: include: Support frames installed on both sides of the textile frame; A tension sensing frame is installed between the two support frames; and a first guide roller and a second guide roller respectively installed on both sides of the tension sensing frame; Tension sensors are installed on both sides of the tension sensing frame, a sensing support seat is installed in the middle of the tension sensing frame, and tension sensing rollers are installed on both sides of the sensing support seat of the tension sensing frame. One end of the tension sensing roller is fixedly supported on the tension sensor, and the other end is fixed on the sensing support seat; Both ends of the first guide roller are mounted on the support frame through a first swing arm, and both ends of the second guide roller are mounted on the support frame through a second swing arm. The first swing arm and the middle part of the second swing arm are rotatably mounted on the support frame through a swing shaft; The first guide roller is installed at the top of the first swing arm, and the second guide roller is installed at the top of the second swing arm. The first swing arm and the second swing arm on the same side are symmetrically arranged on both sides of the tension sensing frame; The tension sensing frame is vertically slidably installed on the supporting frame, and the tension sensing roller is located below the guide roller; A tension adjustment gear is coaxially fixedly installed on each swing shaft, and a tension adjustment rack is vertically fixed on the side of the tension sensing frame facing each tension adjustment gear, which is meshed and driven with the corresponding tension adjustment gear; The bottom end of the first swing arm and the bottom end of the second swing arm on the same side are connected via an elastic connection mechanism; The elastic connection mechanism includes a bidirectional ball screw mounted on a support frame; Buffer springs respectively mounted on two nuts in the bidirectional ball screw; The bidirectional ball screw is arranged horizontally, and the support frame is slidably installed with two slides in the horizontal direction at the position of the bidirectional ball screw. Two nuts in the bidirectional ball screw are fixedly installed on the two slides respectively, and two buffer springs are fixed at the bottom ends of the first swing arm and the second swing arm respectively at their ends away from the nuts. A tension adjustment unit for synchronously driving and adjusting the bidirectional ball screws on both sides is installed on the support frame.

2. A warp tension detection device according to claim 1, characterized in that: The tension adjustment unit includes a linkage rod rotatably installed between two support frames, a tension adjustment motor installed on the side wall of the support frame and driving the linkage rod to rotate through a first worm gear reducer, and both ends of the linkage rod are respectively meshed with the screws in two bidirectional ball screws through gear pairs.

3. A warp tension detection device according to claim 1, characterized in that: The first swing arm is in a "<" shape, and the second swing arm is in a ">" shape.

4. A warp tension detection device according to claim 1, characterized in that: A fixed guide roller is installed between the first guide roller and the warp beam on the spinning frame, and two ends of the fixed guide roller are rotatably installed on both sides of the spinning frame.

5. A warp tension control method, based on a warp tension detection device according to any one of claims 1 to 4, characterized in that: The steps include: S1, preparing for unwinding the warp yarns on the two warp beams, and guiding and conveying the warp yarns on the two warp beams in sequence through a first guide roller, a tension sensing roller on a corresponding side, and a second guide roller; S2, synchronously controlling and adjusting the two bidirectional ball screws through the tension adjustment motor, the first worm gear reducer and the linkage rod, so as to control the first swing arm and the second swing arm to swing in opposite directions / relative directions, so as to adjust the initial positions of the first guide roller, the second guide roller and the tension sensing roller, so as to complete the adjustment setting of the initial tension of the warp yarn; S3. Start the unwinding of the warp yarns. At the same time, two tension sensors monitor the warp tensions of the two warp beams in real time and feed back the tension data to the controller. When the tension on the warp yarns changes, on the one hand, the first guide roller, the second guide roller and the tension sensing roller change through the elastic deformation of the buffer spring to buffer the tension change of the warp yarns. On the other hand, after the tension sensor feeds back the data to the controller, the controller adjusts and controls the unwinding speeds of the two warp yarns through two unwinding adjustment units to adjust the warp tensions on the two warp beams to be consistent and to the set state.

6. A warp tension control method according to claim 5, characterized in that: Side warp beam seats are fixed on both sides of the textile frame, a common warp beam seat is installed between the two warp beam seats, and both ends of the warp beam are rotatably supported on the side warp beam seats and the common warp beam seat respectively; The unwinding adjustment unit includes an unwinding adjustment motor and a second worm gear reducer. The motor shaft of the unwinding adjustment motor is connected to the input shaft of the second worm gear reducer, and the output shaft of the second worm gear reducer is connected to the corresponding warp beam.

7. A warp tension control method according to claim 6, characterized in that: The side warp beam seat and the common warp beam seat are both provided with an inlet for guiding the installation / guiding removal of the warp beam end rotating shaft, and a support port for rotating support installation of the warp beam end rotating shaft is provided in the inlet; A horizontally arranged transmission shaft is rotatably installed on the outer side of the side warp shaft seat below the support opening, a large gear and a small gear are coaxially fixed on the transmission shaft, a primary transmission gear meshing with the large gear is fixed on the output shaft of the second worm gear reducer, and a secondary transmission gear meshing with the small gear is coaxially fixed on the rotating shaft at the end of the warp shaft.

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