Yarn tension device for warping machine

Abstract

The yarn tension device for the warping machine comprises a base, sand guide tables are arranged at the two ends of the base, yarn holes are formed in the sand guide tables in a penetrating mode, two swing rods are arranged on the base in parallel, connecting rods are arranged at the ends of the two swing rods in a hinged mode, and the swing rods and the connecting rods form a parallelogram structure. The four hinged positions of the parallelogram structure are each provided with a winding buckle structure, and a yarn body sequentially penetrates through the four winding buckle structures. A yarn body is wound on the tension device, the parallelogram structure is pulled when the yarn is subjected to tension, so that the winder overcomes the elasticity of the torsional spring to rotate around the axis of the rotating shaft, the tortuosity degree of a yarn advancing path can be changed according to the change of the parallelogram structure, and the tortuosity of the yarn is higher when the path is tortuosity; therefore, the tension compensation effect on the yarn can be achieved, and the device has the advantage of being large in tension application range.

Description

Technical Field

[0001] The utility model relates to the technical field of textile equipment, in particular to a yarn tension device for a warping machine. Background Art

[0002] The yarn rack is also called the creel rack, which is a component of the warping machine and is the support for placing the bobbins. The creel rack is equipped with evenly arranged bobbin sockets, yarn guides, tension devices, end-break automatic stop devices, and signal indication devices.

[0003] Among them, the tension device is a device set on the creel to supplement and even the warping tension. Commonly used tension devices include: washer-type tension device, double tension disk device, double-column pressure disk tension device and roller-type tension device. Specifically, the double tension disk device includes two sets of tension disks, and the second set of tension disks adopts spring pressure to even the warping pressure through the spring pressure. As disclosed in the prior art application number: CN201320849666.5, a disc-type yarn tension device comprises a shaft rod, a fixed disc and a movable disc are inserted on the shaft rod, a first sleeve and a second sleeve are fixed on the fixed disc and the movable disc respectively, the first sleeve of the fixed disc is fixed to the shaft rod by a set screw, a compression spring is pressed on the second sleeve of the movable disc, the other end of the compression spring is pressed on the adjusting sleeve, the adjusting sleeve is threaded on the shaft rod, a waist-shaped groove hole for cutting the two side walls of the shaft rod is formed on the front end surface of the shaft rod, a T-shaped pull rod is inserted in the waist-shaped groove hole of the shaft rod, the head of the pull rod is fixed on the second sleeve of the movable disc and is located between the compression spring and the second sleeve, and the pull rod is fixed with a handle by bolts.

[0004] With respect to the above-mentioned related technologies, the inventor believes that there are the following technical defects: the structure of the double tension disc device for supplementing and uniforming the warping tension is unstable, which is not conducive to ensuring the working reliability of the creel. Further improvements are needed.

[0005] In view of the above, it is necessary to propose a yarn tension device for a warping machine to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to solve the above technical problems and to provide a yarn tension device for a warping machine.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a yarn tension device for a warping machine, comprising a base, sand guide plates are provided at both ends of the base, yarn holes are penetrated on the sand guide plates, two rocker arms are provided in parallel on the base, connecting rods are hinged at the ends of the two rocker arms, the rocker arms and the connecting rods form a parallelogram structure, and winding buckle structures are provided at the four hinges of the parallelogram structure, and the yarn body passes through the four winding buckle structures in sequence.

[0008] Furthermore, a central axis extending downward is provided in the middle of the lower end surface of the swing rod, and the central axis passes through the shaft hole on the base and is rotatably connected thereto.

[0009] Furthermore, a torsion spring is provided on the central axis, one end of the torsion spring is connected to the central axis, and the other end is connected to the base.

[0010] Furthermore, the connecting rod is provided with bent arms at both ends, and the bent arms at both ends are arranged on the same side of the connecting rod, and the opening directions formed by the bent arms of the two connecting rods are arranged relatively, so that the two connecting rods can rotate in the same straight line direction.

[0011] Furthermore, the winding buckle structure includes an axis rod, a turntable, and a paper-shaped buckle. The axis rod is vertically fixed at the center of the lower end surface of the turntable. The rocker arm and the end of the connecting rod form a hinge hole. The axis rod is inserted into the hinge hole for rotational connection. The paper-shaped buckle is vertically fixed on the upper end surface of the turntable. A guide hole for the yarn body to pass through is formed in the center of the paper-shaped buckle.

[0012] Furthermore, the snap hook includes a first vertical rod, a second vertical rod, an upper stop rod, a lower stop rod, and a bottom rod. The first vertical rod and the second vertical rod are arranged parallel to each other in the vertical direction. The upper ends of the first vertical rod and the second vertical rod are connected to form an upper stop rod, the lower end of the first vertical rod is bent to form a lower stop rod, and the lower end of the second vertical rod is bent to form a bottom rod. The first vertical rod, the second vertical rod, the upper stop rod, and the lower stop rod form a guide hole; the bottom rod is arranged parallel to the bottom of the stop rod, so that an L-shaped entrance is formed between the bottom rod and the lower stop rod for the yarn body to enter the inner side of the guide hole; the bottom rod is fixedly connected to the turntable.

[0013] Furthermore, a dumbbell-shaped wire guide sleeve is sleeved on the first vertical rod and the second vertical rod, and the wire guide sleeve is rotatably connected to the first vertical rod and the second vertical rod.

[0014] Furthermore, a wire buckle is provided in the yarn hole.

[0015] Compared with the prior art, the beneficial effects of the utility model are: the yarn body is wound on the tension device, and when the yarn is subjected to tension, the parallelogram structure is pulled, so that the winder overcomes the elastic force of the torsion spring and rotates around the axis of the rotating shaft. The tortuosity of the yarn travel path can be changed according to the change of the parallelogram structure. The more tortuous the path, the greater the tension of the yarn, thereby achieving the tension compensation effect of the yarn, and the device has the advantage of a wide tension application range. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Axonometric measurement of a yarn tension device for a warping machine according to the utility model Figure 1 ;

[0017] Figure 2 This is a top view of a yarn tension device for a warping machine according to the utility model;

[0018] Figure 3 Axonometric measurement of a yarn tension device for a warping machine according to the utility model Figure 2 ;

[0019] Figure 4 It is an exploded view of a yarn tension device for a warping machine of the utility model;

[0020] Figure 5 A schematic diagram of the structure enlargement at the center A;

[0021] In the figure: 1. base; 2. sand guide plate; 3. yarn hole; 4. swing rod; 5. connecting rod; 6. parallelogram structure; 7. winding buckle structure; 8. yarn body; 9. middle axis; 10. axis hole; 11. torsion spring; 12. bent arm; 13. shaft rod; 14. turntable; 15. paper buckle; 16. hinge hole; 17. guide hole; 18. first vertical pole; 19. second vertical pole; 20. upper stop rod; 21. lower stop rod; 22. bottom rod; 23. L-shaped entrance; 24. wire guide sleeve; 25. wire buckle. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0023] A yarn tension device for a warping machine, such as Figure 1 As shown, the base 1 includes a base 1, which is used to be fixed on the outside of the creel and corresponds to the position of each yarn tube. The yarn body 8 drawn out of the yarn tube passes through the sand guide plate 2 and enters the tension device. Sand guide plates 2 are provided at both ends of the base 1. Yarn holes 3 are penetrated on the sand guide plate 2, and wire buckles 25 are provided in the yarn holes 3. One of the two yarn holes 3 is a yarn inlet and the other is a yarn outlet. In actual use, the yarn body 8 can enter from any one of the two yarn holes 3; the yarn installation direction can be used in both positive and negative directions, which has the advantage of convenient yarn installation.

[0024] The base 1 is provided with two swing rods 4 in parallel, and the ends of the two swing rods 4 are hinged with connecting rods 5, and the swing rods 4 and the connecting rods 5 form a parallelogram structure 6, such as Figure 2 The parallelogram is shown as a rotating open structure, in which the yarn body 8 can pass through in a Z-shaped tortuous path, such as Figure 3 As shown, at this time, the two connecting rods 5 rotate to the same straight line position. At this time, when the tension of the yarn body 8 is relatively large, when the parallelogram structure 6 is pulled and deformed to be located in a straight line, the tortuosity of the yarn body 8 is reduced, thereby reducing the tension applied by the tension device to the yarn body 8 with relatively large tension. Thus, the effect of supplementing and balancing the tension of the yarn body 8 is achieved.

[0025] like Figure 4 As shown, the middle part of the lower end surface of the swing rod 4 is provided with a central axis 9 extending downward, and the central axis 9 passes through the shaft hole 10 on the base 1 and is rotatably connected thereto. In this way, the parallelogram structure 6 can be deformed on the base 1. A torsion spring 11 is provided on the central axis 9, one end of which is connected to the central axis 9, and the other end is connected to the base 1. The torsion springs 11 provided on the two central axes 9 control the rotation and reset of the swing rod 4, as shown in FIG. Figure 3 As shown, the line between the two yarn holes 3 is the extreme position of the swing arm rotation, and the torsion spring 11 controls the swing plate to reset counterclockwise and makes the yarn body 8 present a Z-shaped path.

[0026] The two ends of the connecting rod 5 are provided with bent arms 12, and the bent arms 12 at the two ends are arranged on the same side of the connecting rod 5, and the opening directions formed by the bent arms 12 of the two connecting rods 5 are arranged oppositely, so that the ends of the two connecting rods 5 can be rotated and located in the same straight line direction, such as Figure 3 Arranging the bent arms 12 at both ends of the connecting rod 5 can avoid interference between the connecting rods 5 when the swing rod 4 reaches the limit position.

[0027] The four hinges of the parallelogram structure 6 are each provided with a winding buckle structure 7, and the yarn body 8 passes through the four winding buckle structures 7 in sequence. Figure 4 , 5 As shown, the winding buckle structure 7 includes a shaft rod 13, a turntable 14, and a paper-shaped buckle 15. The shaft rod 13 is vertically fixed at the center of the lower end surface of the turntable 14. The end of the rocker arm 4 and the connecting rod 5 form a hinge hole 16. The shaft rod 13 is inserted into the hinge hole 16 for rotational connection. The paper-shaped buckle 15 is vertically fixed on the upper end surface of the turntable 14. A guide hole 17 for the yarn body 8 to pass through is formed in the center of the paper-shaped buckle 15.

[0028] The present winding buckle structure 7 can reduce the number of times of perforating the main body for installation. When in use, the yarn can be moved horizontally from the L-shaped entrance 23 to enter the guide hole 17, which is convenient to use. Specifically, the circular buckle 15 includes a first vertical rod 18, a second vertical rod 19, an upper stopper 20, a lower stopper 21, and a bottom rod 22. The first vertical rod 18 and the second vertical rod 19 are arranged parallel to each other in the vertical direction. The upper ends of the first vertical rod 18 and the second vertical rod 19 are connected to form the upper stopper 20, the lower end of the first vertical rod 18 is bent to form the lower stopper 21, and the lower end of the second vertical rod 19 is bent to form the bottom rod 22. The first vertical rod 18, the second vertical rod 19, the upper stopper 20, and the lower stopper 21 surround the guide hole 17; the bottom rod 22 is arranged parallel to the bottom of the stopper, so that an L-shaped entrance 23 is formed between the bottom rod 22 and the lower stopper 21 for the yarn body 8 to enter the inner side of the guide hole 17; the bottom rod 22 is used to be fixedly connected to the turntable 14. In other embodiments, a dumbbell-shaped wire guide sleeve 24 is provided on the first vertical pole 18 and the second vertical pole 19, and the wire guide sleeve 24 is rotatably connected to the first vertical pole 18 and the second vertical pole 19. The provision of the wire guide sleeve 24 can avoid the wear of the yarn body 8 on the vertical pole due to long-term friction, thereby increasing the service life of the winding buckle structure 7.

[0029] The yarn body 8 passes through the multiple winding buckle structures 7. The parallelogram shape controls the tortuosity of the yarn path. The swing angle of the swing rod 4 can change the tortuosity of the yarn path. The more tortuous the path, the greater the yarn tension. The change of yarn tension is buffered by the elastic force of the torsion spring 11, thereby effectively compensating for the fluctuation of yarn tension and making the tension of the yarn more balanced during warping.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A yarn tension device for a warping machine, comprising a base (1), It is characterized in that Sand guide plates (2) are provided at both ends of the base (1), and yarn holes (3) are provided through the sand guide plates (2). Two swing rods (4) are provided in parallel on the base (1), and connecting rods (5) are hingedly provided at the ends of the two swing rods (4). The swing rods (4) and the connecting rods (5) form a parallelogram structure (6), and winding buckle structures (7) are provided at four hinged locations of the parallelogram structure (6), and the yarn body (8) passes through the four winding buckle structures (7) in sequence.

2. A yarn tension device for a warping machine according to claim 1, It is characterized in that A central shaft (9) extending downward is provided in the middle of the lower end surface of the swing rod (4); the central shaft (9) passes through a shaft hole (10) on the base (1) and is rotatably connected thereto.

3. A yarn tension device for a warping machine according to claim 2, It is characterized in that A torsion spring (11) is provided on the central axis (9); one end of the torsion spring (11) is connected to the central axis (9), and the other end of the torsion spring (11) is connected to the base (1).

4. A yarn tension device for a warping machine according to claim 1, It is characterized in that The connecting rod (5) is provided with bent arms (12) at both ends, and the bent arms (12) at both ends are arranged on the same side of the connecting rod (5), and the openings formed by the bent arms (12) of the two connecting rods (5) are arranged in opposite directions, so that the ends of the two connecting rods (5) can be rotated to be located in the same straight line direction.

5. A yarn tension device for a warping machine according to claim 1, It is characterized in that The wire winding buckle structure (7) comprises a shaft (13), a rotating disk (14), and a snap buckle (15); the shaft (13) is vertically fixedly arranged at the center of the lower end surface of the rotating disk (14); a hinge hole (16) is formed at the end of the swing rod (4) and the connecting rod (5); the shaft (13) is inserted into the hinge hole (16) for rotational connection; the snap buckle (15) is vertically fixedly arranged on the upper end surface of the rotating disk (14); and a guide hole (17) for the yarn body (8) to pass through is formed at the center of the snap buckle (15).

6. A yarn tension device for a warping machine according to claim 5, It is characterized in that The snap hook (15) comprises a first vertical rod (18), a second vertical rod (19), an upper stop rod (20), a lower stop rod (21), and a bottom rod (22); the first vertical rod (18) and the second vertical rod (19) are arranged parallel to each other in a vertical direction; the upper ends of the first vertical rod (18) and the second vertical rod (19) are connected to form an upper stop rod (20); the lower end of the first vertical rod (18) is bent to form a lower stop rod (21); the lower end of the second vertical rod (19) is bent to form a bottom rod (22); the first vertical rod (18), the second vertical rod (19), the upper stop rod (20), and the lower stop rod (21) surround a guide hole (17); the bottom rod (22) is arranged parallel to the bottom of the stop rod, so that an L-shaped entrance (23) is formed between the bottom rod (22) and the lower stop rod (21) for the yarn body (8) to enter the inner side of the guide hole (17); and the bottom rod (22) is fixedly connected to the rotating disk (14).

7. A yarn tension device for a warping machine according to claim 6, It is characterized in that A dumbbell-shaped wire guide sleeve (24) is sleeved on each of the first vertical rod (18) and the second vertical rod (19); the wire guide sleeve (24) is rotatably connected to each of the first vertical rod (18) and the second vertical rod (19).

8. A yarn tension device for a warping machine according to claim 1, It is characterized in that A wire buckle (25) is provided in the yarn hole (3).

Images