A loom having a yarn tension adjusting mechanism

Abstract

This utility model relates to a weaving machine with a yarn tension adjustment mechanism, including a support mechanism and a tension adjustment mechanism. The support mechanism includes a frame, a mounting plate, guide rollers, and a shuttle. Two guide rollers are provided and rotatably mounted at both ends of the frame. The shuttle is mounted on the frame. The mounting plate is connected to the frame. The tension adjustment mechanism includes a first telescopic component, a rolling ring, a positioning post, a baffle, a sensing component, and a controller. Two first telescopic components are provided and connected to the positioning post. The first telescopic components are mounted on the mounting plate. Two baffles are provided and mounted on the positioning post. The positioning post has a downward-facing groove inside. The sensing component is located in the groove. The rolling ring is sleeved on the positioning post. The controller is located on the frame and establishes an information transmission connection with the sensing component. This utility model can adjust the yarn tension and facilitates quick location of the broken yarn by workers, ensuring timely and convenient yarn breakage repair.

Description

Technical Field

[0001] This utility model relates to the field of weaving machine technology, specifically to a weaving machine with a yarn tension adjustment mechanism. Background Technology

[0002] A loom is a mechanical device that weaves yarn or silk threads into fabric and is widely used in the textile industry.

[0003] Chinese Patent No. CN220977292U discloses a weaving machine with a yarn tension adjustment mechanism. By setting a pressure bar on the upper surface of the yarn, the pressure bar moves and drives the first and second support rods to rotate, causing the distance between the two round rods to change. This, in turn, causes the slide rod to slide inside the cylinder. During the movement of the slide rod, the limiting block compresses or stretches the spring, so that the pressure bar always presses on the upper surface of the yarn, achieving the effect of automatic adjustment according to the degree of yarn tension.

[0004] However, the existing technology has the following drawbacks: the pressure bar is always pressing on the yarn, causing the yarn to be under constant load, which can easily lead to excessive yarn tension. When the yarn tension is too high, it cannot be reduced, which can easily cause the yarn to break. In addition, the existing technology does not have an intelligent detection function when the yarn is breaking, and cannot react in time to reduce the impact of the yarn breakage. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a weaving machine with a yarn tension adjustment mechanism.

[0006] The technical solution of this utility model: a weaving machine with a yarn tension adjustment mechanism, comprising:

[0007] The support mechanism includes a frame, a mounting plate, guide rollers, and a shuttle plate; two guide rollers are provided and are rotatably mounted at both ends of the frame; the shuttle plate is mounted on the frame; and the mounting plate is connected to the frame.

[0008] The tension adjustment mechanism includes a first telescopic component, a rolling ring, a positioning post, a baffle, a sensing component, and a controller; two first telescopic components are provided and connected to the positioning post; the first telescopic components are mounted on a mounting plate; two baffles are provided and mounted on the positioning post; a downward-facing groove is opened inside the positioning post; the sensing component is located in the groove; the rolling ring is sleeved on the positioning post; the controller is mounted on the frame and establishes an information transmission connection with the sensing component.

[0009] The wire clamping mechanism has two sets symmetrical about the tension adjustment mechanism; the wire clamping mechanism and the tension adjustment mechanism correspond one-to-one; the wire clamping mechanism and the sensing component establish an information transmission connection.

[0010] Preferably, the surface of the rolling ring is provided with a rubber layer; the surface of the rubber layer is provided with anti-slip texture to increase the friction between the yarn and the rolling ring.

[0011] Preferably, the sensing component includes a pressure sensor, a pressure plate, a spring, and a moving block; the pressure sensor is disposed on the inner wall of the groove; the moving block is slidably disposed in the groove; and the two ends of the spring are respectively connected to the pressure plate and the moving block.

[0012] Preferably, the inner wall of the groove is provided with a sliding groove; the surface of the moving block is connected to a slider that is slidably connected to the sliding groove; the bottom end of the moving block is provided with a rolling groove; and a ball is rolled in the rolling groove.

[0013] Preferably, the wire clamping mechanism includes a connecting arm, a wire guide tube, a second telescopic component, an upper clamping block, and a lower clamping block; the connecting arm is connected to the mounting plate; two wire guide tubes are provided and are respectively connected to both ends of the connecting arm; the second telescopic component is provided on the wire guide tube and its output end passes through the wire guide tube; the output end of the second telescopic component is connected to the upper clamping block; the lower clamping block is connected to the inner wall of the wire guide tube.

[0014] Preferably, an alarm light is connected to the connecting arm to trigger an alarm when the yarn breaks.

[0015] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0016] With a tension adjustment mechanism, the yarn tension can be adjusted in time when it is too high or too low, preventing the yarn from breaking due to excessive tension and ensuring that the yarn tension is always within the normal range. In addition, when the yarn breaks due to wear or other factors, an alarm can be triggered in time, making it easier for staff to quickly find the broken yarn, ensuring timely yarn breakage repair and providing convenience for yarn breakage repair.

[0017] By incorporating a clamping mechanism, the broken yarn can be quickly clamped and secured when it breaks, preventing it from tangling with other yarns. Attached Figure Description

[0018] Figure 1 This is a perspective view of one embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the sensing component and the clamping mechanism in one embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the support mechanism in one embodiment of the present invention;

[0021] Figure 4 This is a cross-sectional structural diagram of the sensing component in one embodiment of the present invention;

[0022] Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle;

[0023] Figure 6 This is a schematic diagram of the assembly structure of the clamping mechanism in one embodiment of the present invention.

[0024] Reference numerals: 1. Frame; 2. Shuttle plate; 3. Mounting plate; 4. Connecting arm; 5. Cable guide tube; 6. Wire guide roller; 7. Controller; 8. Second telescopic component; 9. First telescopic component; 10. Rolling ring; 11. Positioning pin; 1101. Groove; 12. Baffle; 13. Alarm light; 14. Pressure plate; 15. Spring; 16. Moving block; 17. Ball bearing; 18. Pressure sensor; 19. Lower clamping block; 20. Upper clamping block. Detailed Implementation

[0025] Example 1

[0026] like Figure 1-3 As shown, the present invention proposes a weaving machine with a yarn tension adjustment mechanism, which includes a support mechanism, a tension adjustment mechanism and a yarn clamping mechanism;

[0027] The support mechanism includes a frame 1, a mounting plate 3, guide rollers 6, and a shuttle plate 2; the guide rollers 6 are provided in two sets and are rotatably mounted at both ends of the frame 1, and the guide rollers 6 guide the yarn through the warp; the shuttle plate 2 is mounted on the frame 1, and the shuttle plate 2 is a component on a traditional loom used to carry the weft yarn back and forth between the warp yarns, which is existing technology; the mounting plate 3 is connected to the frame 1.

[0028] The tension adjustment mechanism includes a first telescopic component 9, a rolling ring 10, a positioning post 11, a baffle 12, a sensing component, and a controller 7. Two first telescopic components 9 are provided and connected to the positioning post 11. The first telescopic components 9 are mounted on the mounting plate 3 and include, but are not limited to, devices such as cylinders. Two baffles 12 are provided and mounted on the positioning post 11. The baffles 12 limit the rolling ring 10, preventing it from detaching from the positioning post 11. A downward-facing groove 1101 is provided inside the positioning post 11. The sensing component is located within the groove 1101. The rolling ring 10 is fitted onto the positioning post 11, and a rubber layer is provided on the surface of the rolling ring 10. The surface of the rubber layer has anti-slip textures to increase the friction between the yarn and the rolling ring 10. The controller 7 is mounted on the frame 1 and establishes an information transmission connection with the sensing component.

[0029] It should be noted that when the yarn passes through the rolling ring 10, the friction between the two causes the rolling ring 10 to rotate. Due to the tension of the yarn, it drives the rolling ring 10 upward and squeezes the sensing component. The sensing component will sense the squeezing force. The greater the tension, the greater the upward squeezing force of the yarn on the rolling ring 10, and the greater the pressure value sensed by the sensing component. When it exceeds the maximum value of the threshold set by the sensing component, it indicates that the tension of the yarn is too large. At this time, the sensing component feeds back to the controller 7. The controller 7 controls the first telescopic component 9 to work, driving the positioning post 11 to move upward. The contact part between the yarn and the rolling ring 10 moves upward under its own tension until the sensing component senses the pressure. When the pressure value is within the normal range, the yarn tension is reduced. Conversely, when the yarn tension decreases, the upward squeezing force of the yarn on the rolling ring 10 decreases. At this time, the rolling ring 10 will move downward under its own weight and the rebound force of the spring 15. The pressure value sensed by the sensing component decreases. When it is lower than the minimum threshold value set by the sensing component, it indicates that the yarn tension is too low. At this time, the controller 7 will control the positioning column 11 to move downward, thereby driving the sensing component and the rolling ring 10 to move downward, thereby driving the contact part between the yarn and the rolling ring 10 to move downward, so that the yarn is tightened until the pressure value sensed by the sensing component is within the normal range, thereby increasing the yarn tension.

[0030] The wire clamping mechanism has two sets and is symmetrical about the tension adjustment mechanism; the wire clamping mechanism and the tension adjustment mechanism correspond one-to-one; the wire clamping mechanism and the sensing component establish an information transmission connection.

[0031] It should be noted that when the yarn breaks due to wear or other factors, the yarn tension will instantly become zero. At this time, the pressure value sensed by the sensing component is zero. The controller 7 controls the second telescopic component 8 to work and drive the upper clamping block 20 to move down to cooperate with the lower clamping block 19 to clamp the broken yarn, preventing the broken yarn from getting tangled with other yarns. At the same time, the controller 7 controls the alarm light 13 to sound an alarm and light up to remind the staff of the specific location of the broken yarn, so that the staff can quickly find the broken yarn, ensuring the timeliness of yarn breakage repair and providing convenience for yarn breakage repair.

[0032] Example 2

[0033] like Figure 6As shown, this utility model proposes a weaving machine with a yarn tension adjustment mechanism. Compared with Embodiment 1, this embodiment further details the structure of the yarn clamping mechanism. The yarn clamping mechanism includes a connecting arm 4, a thread guide tube 5, a second telescopic component 8, an upper clamping block 20, and a lower clamping block 19. The connecting arm 4 is connected to the mounting plate 3. Two thread guide tubes 5 are provided and respectively connected to both ends of the connecting arm 4. The second telescopic component 8 is provided on the thread guide tube 5 and its output end passes through the thread guide tube 5. The output end of the second telescopic component 8 is connected to the upper clamping block 20. The second telescopic component 8 includes, but is not limited to, devices such as cylinders. The lower clamping block 19 is connected to the inner wall of the thread guide tube 5. An alarm light 13 is connected to the connecting arm 4 for alarming when the yarn breaks.

[0034] In this embodiment, the connecting arm 4 is relatively long, so that there is a sufficient distance between the thread tube 5 and the positioning post 11, ensuring that the clamping mechanism has enough time to clamp the yarn after the yarn breaks; the edges of the upper clamping block 20 and the lower clamping block 19 are rounded to reduce the wear of the yarn when it passes through.

[0035] It should be noted that when the yarn breaks, the yarn tension is instantly zero. At this time, the squeezing force of the yarn on the rolling ring 10 is zero, and the pressure value sensed by the sensing component is zero. The sensing component feeds back to the controller 7, and the controller 7 controls the second telescopic component 8 to work and drive the lower clamping block 19 to move down to cooperate with the upper clamping block 20 to realize the clamping function of the broken yarn, so as to prevent the broken yarn from causing phenomena with other yarns. At the same time, it is easy for staff to quickly find the broken yarn, ensuring the timeliness of yarn breakage repair and providing convenience for yarn breakage repair.

[0036] Example 3

[0037] like Figure 4-5 As shown, this utility model proposes a weaving machine with a yarn tension adjustment mechanism. Compared with Embodiment 2, this embodiment further details the structure of the sensing component. The sensing component includes a pressure sensor 18, a pressure plate 14, a spring 15, and a moving block 16. The pressure sensor 18 is disposed on the inner wall of the groove 1101. The moving block 16 is slidably disposed in the groove 1101. The two ends of the spring 15 are respectively connected to the pressure plate 14 and the moving block 16. A sliding groove is provided on the inner wall of the groove 1101. A slider that is slidably connected to the sliding groove is connected to the surface of the moving block 16. The slider, in conjunction with the sliding groove, can prevent the moving block 16 from disengaging from the groove 1101. A rolling groove is provided at the bottom end of the moving block 16. A ball bearing 17 is rolled in the rolling groove. The ball bearing 17 can reduce the friction of the rolling ring 10 during the rolling process.

[0038] In this embodiment, under the action of yarn tension, the yarn will press the rolling ring 10 upward, and the rolling ring 10 will press the moving block 16 upward. When the yarn tension increases, the rolling ring 10 moves upward, which in turn causes the moving block 16 to move upward, so that the spring 15 is further compressed. At this time, the pressure value sensed by the pressure sensor 18 increases. Conversely, when the yarn tension decreases, the rolling ring 10 moves downward, and the moving block 16 moves downward accordingly. At this time, the compression of the spring 15 decreases, and the pressure value sensed by the pressure sensor 18 decreases.

[0039] In summary, when this utility model is used, after the yarn passes through the hole on the shuttle plate 2, the yarn passes under the rolling ring 10 and is then conveyed to the next step by the guide roller 6. Under the tension of the yarn, the rolling ring 10 is lifted, and the upward movement of the rolling ring 10 will squeeze the moving block 16, squeezing the moving block 16 into the groove 1101. The upward movement of the moving block 16 will compress the spring 15, and under the elastic force of the spring 15, the pressure sensor 18 will be squeezed by the pressure plate 14, so that the pressure sensor 18 senses the pressure. When the yarn tension is within the normal range, the pressure value sensed by the pressure sensor 18 is also within the normal range.

[0040] When the yarn tension increases, the yarn will further drive the rolling ring 10 upward, which in turn causes the moving block 16 to move upward further, further increasing the compression of the spring 15. When the pressure value sensed by the pressure sensor 18 exceeds the set maximum threshold, it indicates that the yarn tension is too high. At this time, the pressure sensor 18 feeds back to the controller 7, and the controller 7 controls the first telescopic component 9 to work, driving the positioning post 11 upward. The contact part between the yarn and the rolling ring 10 moves upward under its own tension (the upward movement of the yarn will drive the rolling ring 10 to move upward synchronously), until the pressure value sensed by the pressure sensor 18 is within the normal range, thus realizing the function of reducing yarn tension (refer to...). Figure 4 When the contact area between the yarn and the rolling ring 10 moves upward, the bending of the yarn decreases, thus reducing the tension. This reduced tension decreases the squeezing force of the yarn on the rolling ring 10, causing the spring 15 to rebound and extend, and the pressure value sensed by the pressure sensor 18 to decrease. Conversely, when the yarn tension decreases, the upward squeezing force of the yarn on the rolling ring 10 decreases. At this time, the rolling ring 10 moves downward under its own weight and the rebound force of the spring 15, and the pressure value sensed by the pressure sensor 18 decreases. When the pressure value is lower than the minimum threshold set by the pressure sensor 18, it indicates that the yarn tension is too low. In this case, the controller 7 controls the positioning column 11 to move downward, thereby causing the sensing component and the rolling ring 10 to move downward, which in turn causes the contact area between the yarn and the rolling ring 10 to move downward, tightening the yarn until the pressure value sensed by the sensing component is within the normal range, thus increasing the yarn tension.

[0041] When a yarn breaks due to wear or other factors, the yarn tension instantly becomes zero. At this time, the pressure sensor 18 senses zero pressure. The controller 7 controls the second telescopic component 8 to work and drive the upper clamping block 20 to move down to cooperate with the lower clamping block 19 to clamp the broken yarn, preventing the broken yarn from getting tangled with other yarns. At the same time, the controller 7 controls the alarm light 13 to sound an alarm and illuminate to remind the staff of the specific location of the broken yarn, making it easier for the staff to quickly find the broken yarn, ensuring the timeliness of yarn breakage repair, and providing convenience for yarn breakage repair.

[0042] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A loom with a yarn tension adjusting mechanism, characterized in that, The utility model relates to a yarn tensioning device, which comprises a support mechanism, a tension adjusting mechanism, and a yarn clamping mechanism. The support mechanism comprises a frame (1), a mounting plate (3), two wire rollers (6), and a shuttle plate (2). The two wire rollers (6) are rotatably arranged at the two ends of the frame (1), respectively. The mounting plate (3) is connected to the frame (1). The tension adjusting mechanism comprises a first telescopic component (9), a rolling ring (10), a positioning column (11), two baffle plates (12), a sensing assembly, and a controller (7).

2. The loom having a yarn tension adjusting mechanism according to claim 1, wherein The two first telescopic components (9) are connected to the positioning column (11) and arranged on the mounting plate (3).

3. The loom having a yarn tension adjusting mechanism according to claim 1, wherein The two baffle plates (12) are arranged on the positioning column (11).

4. The loom having a yarn tension adjusting mechanism according to claim 3, wherein The positioning column (11) has a downwardly arranged groove (1101) formed in the interior thereof.

5. The loom having a yarn tension adjusting mechanism according to claim 1, wherein The sensing assembly is arranged in the groove (1101).

6. The loom having a yarn tension adjusting mechanism according to claim 5, wherein The rolling ring (10) is sleeved on the positioning column (11). The controller (7) is arranged on the frame (1) and in information transmission connection with the sensing assembly. The yarn clamping mechanism is symmetrical about the tension adjusting mechanism. The yarn clamping mechanism is in one-to-one correspondence with the tension adjusting mechanism. The yarn clamping mechanism is in information transmission connection with the sensing assembly. The surface of the rolling ring (10) is provided with a rubber layer. The surface of the rubber layer is provided with anti-skid lines for increasing the friction between the yarn and the rolling ring (10). The sensing assembly comprises a pressure sensor (18), a pressing plate (14), a spring (15), and a moving block (16). The pressure sensor (18) is arranged on the inner wall of the groove (1101). The moving block (16) is slidably arranged in the groove (1101). The two ends of the spring (15) are connected to the pressing plate (14) and the moving block (16), respectively. The inner wall of the groove (1101) is provided with a sliding groove. The surface of the moving block (16) is connected with a sliding block in sliding connection with the sliding groove. The bottom end of the moving block (16) is provided with a rolling groove. The rolling groove is rollingly provided with a rolling ball (17). The yarn clamping mechanism comprises a connecting arm (4), two wire tubes (5), a second telescopic component (8), an upper clamping block (20), and a lower clamping block (19). The connecting arm (4) is connected to the mounting plate (3). The two wire tubes (5) are connected to the two ends of the connecting arm (4), respectively. The second telescopic component (8) is arranged on the wire tube (5) and has an output end penetrating through the wire tube (5). The output end of the second telescopic component (8) is connected to the upper clamping block (20). The lower clamping block (19) is connected to the inner wall of the wire tube (5). The connecting arm (4) is connected with an alarm lamp (13) for alarming when the yarn is disconnected.

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