Warp tension balancer

Abstract

The utility model relates to the field of auxiliary devices of weaving machines, and discloses a warp tension balancer which comprises a U-shaped frame, the U-shaped frame is movably arranged below a fixing frame, a tension roller is rotatably arranged between two moving blocks, two supporting plates are fixed to the front sides and the rear sides of the two moving blocks respectively, and the two supporting plates are arranged on the U-shaped frame. And a rolling wheel is rotatably arranged between the two supporting plates, the outer wall of the rolling wheel makes contact with the inner wall of the sliding groove, first springs are fixed to the top faces of the interiors of the two movable holes correspondingly, and the bottom ends of the two first springs are fixedly connected with the top faces of two movable blocks correspondingly. According to the warp yarn tension control device, the tension of warp yarns can be balanced through the moving block and the first spring, the moving block can be limited through the sliding groove, the supporting plate and the idler wheels, deviation of the moving block is limited, friction resistance is reduced, the moving block moves more smoothly, and therefore the accuracy of tension control is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of loom auxiliary devices, in particular to a warp tension balancer. Background Art

[0002] A loom is a machine that interweaves two or more warp threads at right angles to form fabric. Its main components include the shedding mechanism, weft insertion mechanism, beating-up mechanism, take-up mechanism, and warp let-off mechanism. These five mechanisms complete the weaving process. Looms are categorized as either shuttle or shuttleless looms based on the weft insertion method. In practice, due to the extremely high weft insertion rates of shuttleless looms, a warp tension control device is often installed between the weft insertion and beating-up mechanisms to accommodate high-speed production.

[0003] According to the Chinese patent announcement number: CN220224505U, a control device for balancing the warp tension of a loom includes a fixed frame, support rods are fixed at both ends of one side of the fixed frame, a cross plate is commonly provided on one side of the two support rods, connecting rods are inserted on both sides of the top of the cross plate, and a U-shaped plate is commonly provided at the bottom ends of the two connecting rods, and fixed grooves are opened on both sides of the U-shaped plate, and tension control components are slidably provided on the inner walls of the two fixed grooves.

[0004] In the above scheme, the warp tension is balanced by the tension roller, the movable block and the spring, and the movable block is limited by the slide groove and the slider, resulting in the following disadvantages: when the device is in use, the movement of the slider increases the friction resistance of the movable block, making the movement of the movable block not smooth enough, resulting in reduced accuracy of tension control. Utility Model Content

[0005] The purpose of the utility model is to provide a warp tension balancer to solve the problem that when the device is in use, the movement of the slider increases the friction resistance of the moving block, making the movement of the moving block not smooth enough, resulting in reduced accuracy of tension control.

[0006] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical solutions: a warp tension balancer, including a U-shaped frame, the U-shaped frame is movably arranged below the fixed frame, a connecting roller is rotatably arranged inside the fixed frame, movable holes are respectively opened on the left and right sides of the outer wall of the U-shaped frame, and sliding grooves are respectively opened on the front and rear sides of the inner walls of the two movable holes, movable blocks are respectively movably arranged inside the two movable holes, a tension roller is rotatably arranged between the two movable blocks, two support plates are respectively fixed on the front and rear sides of the two movable blocks, a roller is rotatably arranged between the two support plates, the outer wall of the roller is in contact with the inner wall of the sliding groove, the inner top surfaces of the two movable holes are respectively fixed with first springs, and the bottom ends of the two first springs are respectively fixedly connected to the top surfaces of the two movable blocks.

[0007] Preferably, bearings are respectively provided between the two support plates and the rollers.

[0008] Preferably, a connection hole is opened on the top surface of the fixing frame, an electric push rod is fixed on the top surface of the fixing frame, and one end of the telescopic rod of the electric push rod is fixedly connected to the top surface of the U-shaped frame.

[0009] Preferably, the top surface of the fixing frame is provided with two limiting holes, and limiting posts are slidably inserted into the two limiting holes, and the bottom ends of the two limiting posts are fixedly connected to the top surface of the U-shaped frame.

[0010] Preferably, two oil filling holes are provided on the top surface of the U-shaped frame.

[0011] Preferably, a rotating hole is respectively opened on one side of the two moving blocks, a fixed groove is respectively opened on the left end and the right end of the tension roller, a second spring is respectively fixed on the inner walls of the two fixed grooves, a rotating shaft is respectively fixed on the outer ends of the two second springs, and the two rotating shafts are respectively rotatably arranged in the two rotating holes.

[0012] Compared with the prior art, a warp tension balancer using the above technical solution has the following beneficial effects:

[0013] 1. During use, the moving block and the first spring are used to balance the tension of the warp threads. The moving block can be limited by the slide groove, the support plate and the roller, which not only limits the deviation of the moving block but also reduces the friction resistance, making the movement of the moving block smoother, thereby improving the accuracy of tension control.

[0014] Second, during use, the bearings provide smoother support for the rotation of the rollers, which not only reduces friction and resistance during roller rotation, but also increases the roller's service life, ensures stable contact between the chute and the roller, and further improves the stability and reliability of the device. By activating the electric push rod, the U-shaped frame can be raised and lowered, which in turn can drive the tension roller to rise and fall, thereby meeting different warp tension requirements and improving its versatility and flexibility.

[0015] During use, the limiting holes and limiting posts facilitate positioning of the U-shaped frame, preventing it from shifting. This improves the stability of the U-shaped frame and tension roller during raising and lowering, ensuring the normal operation of the device. The oil filling hole allows workers to easily add lubricant, allowing the lubricant to fall onto the first spring, making lubrication more convenient and quicker. This not only extends the service life of the first spring but also ensures the long-term stable operation of the warp tension balancer. The tension roller is simple and quick to install and remove, reducing labor intensity, improving the maintainability and ease of use of the warp tension balancer, and ensuring stable production on the loom. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of an embodiment.

[0017] Figure 2 Schematic diagram of the explosion of the embodiment.

[0018] Figure 3 It is an exploded diagram of the U-shaped frame and the moving block in the embodiment.

[0019] Figure 4 For example Figure 2 Enlarged schematic diagram of point A in the middle.

[0020] In the figure: 1. U-shaped frame; 2. Fixed frame; 3. Connecting roller; 4. Movable hole; 5. Slide; 6. Moving block; 7. Tension roller; 8. Support plate; 9. Roller; 10. First spring; 11. Bearing; 12. Connecting hole; 13. Electric push rod; 14. Limiting hole; 15. Limiting column; 16. Oil filling hole; 17. Rotating hole; 18. Fixed slot; 19. Second spring; 20. Rotating shaft. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0022] like Figure 1-Figure 4As shown, a warp tension balancer includes a U-shaped frame 1, which is movably arranged below a fixed frame 2, and a connecting roller 3 is rotatably arranged inside the fixed frame 2. Movable holes 4 are respectively opened on the left and right sides of the outer wall of the U-shaped frame 1, and slide grooves 5 are respectively opened on the front and rear sides of the inner walls of the two movable holes 4. Moving blocks 6 are respectively movably arranged inside the two movable holes 4, and a tension roller 7 is rotatably arranged between the two movable blocks 6. Two support plates 8 are respectively fixed on the front and rear sides of the two movable blocks 6, and a roller 9 is rotatably arranged between the two support plates 8. The outer wall of the roller 9 contacts the inner wall of the slide groove 5, and the inner top surfaces of the two movable holes 4 are respectively fixed with first springs 10, and the bottom ends of the two first springs 10 are respectively fixedly connected to the top surfaces of the two movable blocks 6.

[0023] During use, the warp is sleeved on the outer wall of the connecting roller 3, and the warp is pressed down by the tension roller 7. When the shuttleless loom inserts the weft at high speed and causes the warp tension to increase instantly, the warp will drive the tension roller 7 to move upward, and the upward movement of the tension roller 7 drives the moving block 6 to move upward. At this time, the roller 9 slides inside the slide groove 5, and the moving block 6 moves upward to squeeze the first spring 10. Under the elastic deformation of the first spring 10, the instantly increased tension of the warp is balanced to avoid the warp from being torn, thereby ensuring the normal operation of the loom and improving production efficiency.

[0024] The moving block 6 and the first spring 10 are used to balance the tension of the warp thread, and the moving block 6 can be limited by the slide groove 5, the support plate 8 and the roller 9, which not only limits the offset of the moving block 6, but also reduces the friction resistance, making the movement of the moving block 6 smoother, thereby improving the accuracy of tension control.

[0025] like Figure 1-Figure 4 As shown, bearings 11 are respectively provided between the two support plates 8 and the rollers 9 .

[0026] During use, the bearing 11 provides smoother support for the rotation of the roller 9, which not only reduces the friction and resistance during the rotation of the roller 9, but also improves the service life of the roller 9, ensures stable contact between the slide 5 and the roller 9, and further improves the stability and reliability of the device.

[0027] like Figure 1-Figure 4 As shown, a connecting hole 12 is provided on the top surface of the fixing frame 2, and an electric push rod 13 is fixed on the top surface of the fixing frame 2. One end of the telescopic rod of the electric push rod 13 is fixedly connected to the top surface of the U-shaped frame 1. Two limiting holes 14 are provided on the top surface of the fixing frame 2, and limiting columns 15 are slidably inserted into the interior of the two limiting holes 14. The bottom ends of the two limiting columns 15 are respectively fixedly connected to the top surface of the U-shaped frame 1.

[0028] During use, the U-shaped frame 1 can be raised and lowered by activating the electric push rod 13, which in turn drives the tension roller 7 to be raised and lowered, thereby meeting different warp tension requirements and improving its versatility and flexibility. The limiting holes 14 and limiting posts 15 facilitate the positioning of the U-shaped frame 1, preventing it from shifting, thereby improving the stability of the U-shaped frame 1 and the tension roller 7 during raising and lowering, and ensuring the normal operation of the device.

[0029] like Figure 1-Figure 4 As shown, two oil filling holes 16 are provided on the top surface of the U-shaped frame 1, and a rotation hole 17 is provided on one side of the two movable blocks 6. A fixing groove 18 is provided at the left and right ends of the tension roller 7. Second springs 19 are fixed to the inner walls of the two fixing grooves 18, and rotating shafts 20 are fixed to the outer ends of the two second springs 19. The two rotating shafts 20 are rotatably arranged in the two rotating holes 17.

[0030] During use, the oil filling hole 16 is convenient for the staff to add lubricating oil, so that the lubricating oil can fall on the first spring 10, making the addition of lubricating oil more convenient and quick, not only extending the service life of the first spring 10, but also ensuring the long-term stable operation of the warp tension balancer. When the staff needs to install the tension roller 7, they first squeeze the rotating shaft 20 toward the inside of the fixed groove 18. At this time, the second spring 19 is in a compressed state. Then, the tension roller 7 is located between the two moving blocks 6. Then, the rotating shaft 20 can be automatically reset by the second spring 19, so that the rotating shaft 20 is slidably inserted into the rotating hole 17 to complete the installation; conversely, when the staff needs to disassemble the tension roller 7, they first squeeze the rotating shaft 20 toward the inside of the fixed groove 18 so that the rotating shaft 20 is away from the inside of the rotating hole 17. Then, the tension roller 7 can be disassembled, making the installation and disassembly process of the tension roller 7 simple and quick, reducing the labor intensity of the staff, improving the maintainability and ease of use of the warp tension balancer, and ensuring the stable production of the loom.

[0031] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A warp tension balancer, comprising a U-shaped frame (1), wherein the U-shaped frame (1) is movably arranged below a fixed frame (2), and is characterized in that: A connecting roller (3) is rotatably provided inside the fixed frame (2), a movable hole (4) is respectively provided on the left and right sides of the outer wall of the U-shaped frame (1), a slide groove (5) is respectively provided on the front and rear sides of the inner walls of the two movable holes (4), a movable block (6) is respectively movably provided inside the two movable holes (4), a tension roller (7) is rotatably provided between the two movable blocks (6), two support plates (8) are respectively fixed on the front and rear sides of the two movable blocks (6), a roller (9) is rotatably provided between the two support plates (8), the outer wall of the roller (9) contacts the inner wall of the slide groove (5), the inner top surfaces of the two movable holes (4) are respectively fixed with a first spring (10), and the bottom ends of the two first springs (10) are respectively fixedly connected to the top surfaces of the two movable blocks (6).

2. A warp tension balancer according to claim 1, characterized in that: Bearings (11) are respectively provided between the two support plates (8) and the roller (9).

3. The warp tension balancer according to claim 2, characterized in that: A connection hole (12) is provided on the top surface of the fixing frame (2), an electric push rod (13) is fixed to the top surface of the fixing frame (2), and one end of the telescopic rod of the electric push rod (13) is fixedly connected to the top surface of the U-shaped frame (1).

4. A warp tension balancer according to claim 3, characterized in that: Two limiting holes (14) are provided on the top surface of the fixing frame (2), and limiting posts (15) are slidably inserted into the two limiting holes (14), and the bottom ends of the two limiting posts (15) are fixedly connected to the top surface of the U-shaped frame (1).

5. The warp tension balancer according to claim 1, characterized in that: Two oil filling holes (16) are provided on the top surface of the U-shaped frame (1).

6. The warp tension balancer according to claim 5, characterized in that: A rotation hole (17) is respectively opened on one side of the two moving blocks (6), and a fixing groove (18) is respectively opened on the left end and the right end of the tension roller (7). Second springs (19) are respectively fixed to the inner walls of the two fixing grooves (18), and rotating shafts (20) are respectively fixed to the outer ends of the two second springs (19). The two rotating shafts (20) are respectively rotatably arranged in the two rotation holes (17).

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