A spinning tension control mechanism

Abstract

The present invention discloses a spinning tension control mechanism, which belongs to the field of spinning technology, comprising two small balloon half-rings that can rotate under the action of the tube yarn, the openings of the two small balloon half-rings are arranged facing each other, and the two small balloon half-rings are combined to form a circular ring for constraining the balloon, and the inner diameter of the circular ring is between the maximum diameter and the minimum diameter of the yarn tube; the small balloon half-rings are connected to the gravity structure that can drive the small balloon half-rings to rotate through a rotating shaft, and the middle part of the rotating shaft is rotatably arranged on the frame, the mass of the gravity structure is greater than the mass of the small balloon half-rings, and the radial direction of the small balloon half-rings is not parallel to the length direction of the gravity structure. Through the above technical scheme, the small balloon ring structure of the present invention can not hinder the normal operation of the machine stopper and / or the automatic yarn doffing device, and is convenient for plugging and pulling out the yarn tube when emergencies such as yarn breakage occur, while reducing yarn breakage and increasing vehicle speed. In summary, the small balloon ring structure of the present invention can achieve large-scale mass production and loading, and increase yarn output.

Description

Technical Field

[0001] The present invention relates to the technical field of spinning, in particular to a spinning tension control mechanism. Background Art

[0002] In the ring spinning twisting winding structure, the balloon is an important factor affecting the spinning tension. Reducing the spinning tension by setting a balloon ring structure is an effective technology for controlling the spinning tension. The diameter of the balloon ring is positively correlated with the spinning tension, that is, the larger the diameter of the balloon ring, the greater the spinning tension. In order to reduce the spinning tension, the balloon ring is mostly set to an opening and closing structure. For example, the invention patent with application number 202010811713.1 divides the balloon ring into a first half ring and a second half ring, and sets an electromagnet and a suction plate cooperating therewith to control the opening and closing actions of the first half ring and the second half ring; for example, the invention patent with application number 201880072134.0 drives the balloon ring to open or close by setting a lever and slider matching structure or a pinion and toothed belt matching method. The structures for controlling the opening and closing of the balloon ring in the above-mentioned prior art require the intervention of electrical control equipment, and the structure is relatively complex. There are great difficulties and resistance in mass production, actual loading, and car-stopping operation.

[0003] In summary, it can be seen that there is an urgent need to design a spinning tension control mechanism with a simple structure that can be opened or closed without the intervention of any electrical control equipment, so that the small balloon ring structure will not interfere with the normal operation of the machine stopper and / or the automatic yarn doffing device, and is convenient for inserting and removing the yarn tube when emergencies such as yarn breakage occur. At the same time, it can reduce yarn breakage and increase vehicle speed, so that the small balloon ring structure can be mass-produced and loaded, thereby increasing yarn production. Summary of the Invention

[0004] The purpose of the present invention is to address the defects and shortcomings in the prior art and provide a spinning tension control mechanism, which adopts a gravity structure to keep the small balloon half ring in a balanced state, and drives the small balloon half ring to automatically reset after the small balloon half ring is opened. Compared with the structural form of the prior art that adopts electromagnets or levers and sliders or small gears and toothed belts to control the opening and closing of the small balloon half ring, the small balloon ring structure of the present invention is simple and can be opened or closed without the intervention of any electrical control equipment. The small balloon ring structure of the present invention does not hinder the normal operation of the vehicle stopper and / or the automatic yarn doffing device, and is convenient for inserting and removing the yarn tube in emergencies such as yarn breakage. In addition, it can also reduce the tension of the yarn, reduce yarn breakage, and increase the vehicle speed. In summary, the small balloon ring structure of the present invention can achieve large-scale mass production and loading, and increase yarn production.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] The present invention provides a spinning tension control mechanism, comprising two small balloon half-rings that can rotate under the action of a bobbin, the openings of the two small balloon half-rings being arranged facing each other, the two small balloon half-rings enclosing each other to form a circular ring for constraining the balloon, the inner diameter of the circular ring being between the maximum diameter and the minimum diameter of the bobbin; the small balloon half-rings being connected to a gravity structure capable of driving the small balloon half-rings to rotate via a rotating shaft, the middle portion of the rotating shaft being rotatably arranged on a frame, the mass of the gravity structure being greater than the mass of the small balloon half-rings, and the radial direction of the small balloon half-rings being non-parallel to the length direction of the gravity structure;

[0007] Preferably, a connecting plate is fixedly provided on the frame, the rotating shaft is rotatably arranged in the connecting plate, an elastic element in a compressed state is fixedly provided in the connecting plate, and an end surface of the elastic element away from the connecting plate abuts against an outer surface of the rotating shaft;

[0008] Preferably, the elastic element is a spring, one end of the spring is fixed in the connecting plate, and the other end of the spring abuts against the outer surface of the rotating shaft;

[0009] Preferably, a pressing ball is provided at one end of the spring close to the rotating shaft, and the pressing ball has a smooth pressing surface, and the pressing surface abuts against the outer surface of the rotating shaft;

[0010] Preferably, the portion of the rotating shaft located in the connecting plate is provided with a groove adapted to the pressing ball, and the pressing ball is rotatably arranged in the groove;

[0011] Preferably, the small air circle semi-ring is a semicircular ring having a mass smaller than that of the gravity structure;

[0012] Preferably, both ends of the small balloon half ring are respectively provided with a guide slope and a curved arc segment for facilitating the feeding of yarn, and a channel for facilitating the passage of yarn is formed between the guide slope of one small balloon half ring and the curved arc segment of the other small balloon half ring, and the minimum width of the channel is greater than the diameter of the yarn.

[0013] Compared with the prior art, the present invention has achieved the following technical effects:

[0014] 1. The present invention sets the inner diameter of the circular ring between the maximum diameter and the minimum diameter of the yarn tube, so that when taking and placing the yarn tube, the yarn tube can apply a force to the small balloon half ring to open the small balloon half ring; a gravity structure is set at the other end of the rotating shaft, and when the force of the yarn tube on the small balloon half ring is removed, the small balloon half ring is automatically reset under the drive of the gravity structure. That is, the small balloon half ring structure of the present invention is simple in structure compared with the device in the prior art that uses electrical control equipment to control the opening and closing of the small balloon half ring, does not require any electrical control equipment to intervene, greatly reduces the complexity of the small balloon structure, and saves production costs; secondly, the small balloon half ring structure of the present invention does not hinder the normal operation of the vehicle operator, and is convenient for inserting and removing the yarn tube when emergencies such as yarn breakage occur; furthermore, reducing the size of the circular ring can also reduce the tension of the yarn, thereby reducing breakage and increasing vehicle speed. In summary, the small balloon ring structure of the present invention can achieve large-scale mass production and loading, and increase yarn output.

[0015] 2. The present invention adopts the form of arranging the small air ring half ring and the gravity structure at both ends of the rotating shaft respectively. Compared with the form of arranging the small air ring half ring only at one end of the rotating shaft, the stress state of the rotating shaft and the connecting plate is improved, and the service life of the device is extended.

[0016] 3. The present invention fixes a spring in a compressed state in the connecting plate, provides a pressing ball at one end of the spring away from the connecting plate, and provides a groove compatible with the pressing ball on the rotating shaft. The pressing ball is rotatably set in the groove. On the one hand, the elastic force of the spring is used to apply extrusion force to the rotating shaft, thereby reducing the swing amplitude of the rotating shaft when resetting and reducing the swing amplitude of the small balloon half ring in the up and down directions; on the other hand, the pressing ball is set in the groove and the pressing ball is used to clamp the rotating shaft, so that the rotating shaft will not be displaced forward and backward, reducing the misalignment of the two small balloon half rings in the front and back directions. In summary, the small balloon ring structure of the present invention can greatly improve the position stability of the small balloon half ring, further reduce the probability of yarn breakage, and increase the vehicle speed.

[0017] 4. The present invention reduces the friction between the pressing ball and the groove and improves the smoothness of the rotation of the shaft by rotatably setting the pressing ball in a groove that matches its curvature radius and setting the surface of the pressing ball and the surface of the groove to be smooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1It is a schematic diagram of the shaft side structure of the spinning tension control mechanism in a horizontal state;

[0020] Figure 2 It is a side structural schematic diagram of the spinning tension control mechanism;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure at AA;

[0022] Figure 4 is a structural diagram of the rotating shaft;

[0023] Figure 5 This is a schematic diagram of the axial structure of the spinning tension control mechanism when pulling out the bobbin;

[0024] Figure 6 It is a schematic diagram of the axial structure of the spinning tension control mechanism when inserting the yarn tube.

[0025] Among them, 1. Small air ring half ring; 2. Circular ring; 3. Rotating shaft; 4. Gravity structure; 5. Connecting plate; 6. Elastic element; 7. Pressing ball; 8. Groove; 9. Guide slope; 10. Curved arc segment. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] like Figures 1 to 6As shown, the present invention provides a spinning tension control mechanism, comprising two small balloon half rings 1 that can rotate under the action of the bobbin yarn, the openings of the two small balloon half rings 1 are arranged facing each other, and the two small balloon half rings 1 are combined to form a circular ring 2 for constraining the balloon, and the inner diameter of the circular ring 2 is between the maximum diameter and the minimum diameter of the yarn tube. When the yarn tube is taken out or inserted, the yarn wrapped on the outer surface of the yarn tube applies a force to the small balloon half ring 1, so that the small balloon half ring 1 rotates to open the circular ring 2 to form a channel for facilitating the entry and exit of the yarn tube; the small balloon half ring 1 is connected to a gravity structure 4 that can drive the small balloon half ring 1 to rotate through a rotating shaft 3, and the middle part of the rotating shaft 3 is rotatably set on the frame, and the mass of the gravity structure 4 is greater than the mass of the small balloon half ring 1 The radial direction of the small balloon half ring 1 is not parallel to the length direction of the gravity structure 4; under the action of the gravity structure 4, the small balloon half ring 1 can be in a relatively balanced state, and the two small balloon half rings 1 in a balanced state are surrounded to form a circular circle 2, and the radial direction of the small balloon half ring 1 and the length direction of the gravity structure 4 are preferably perpendicular to each other. In actual production, the small balloon half ring 1 does not necessarily have to be in a horizontal state, and a certain inclination angle is also allowed. It should be noted that if the small balloon half ring 1 is in an inclined state, there should be no pointed parts at the ends of the two small balloon half rings 1, that is, the inner surface of the circular circle 2 should be smooth to ensure that the tension on the yarn will not undergo a large mutation.

[0029] The gravity structure 4 is a gravity rod or gravity block made of metal, and the movement paths of the two gravity rods or gravity blocks do not intersect with each other. For example, the lengths of the two gravity rods or gravity blocks can be shortened respectively so that when they rotate toward each other, the two gravity structures 4 will not collide with each other, thereby avoiding the situation where the small air circle half ring 1 cannot be fully opened due to the mutual interference of the rotation paths of the gravity structures 4; the two gravity rods or gravity blocks can also be staggered without shortening the length of the gravity rods or gravity blocks. As a preferred embodiment of the present invention, two rotating shafts 3 are set, one long and the other short, so that the gravity rods / gravity blocks arranged on the rotating shafts 3 are staggered with each other; the gravity structure 4 and the rotating shaft 3 can be an integral structure, It can also be a split structure. It should be noted that if the gravity structure 4 and the rotating shaft 3 are an integrated structure, the connection method between the rotating shaft 3 and the small air circle half ring 1 needs to be set to a detachable connection, so that the rotating shaft 3 can pass through the through hole in the connecting plate 5. Of course, it is also feasible to set the rotating shaft 3 and the small air circle half ring 1 as an integrated structure, and set the connection method between the rotating shaft 3 and the gravity structure 4 to a detachable connection, or set the connection method between the rotating shaft 3 and the small air circle half ring 1, and the connection method between the rotating shaft 3 and the gravity structure 4 to a detachable connection; in order to facilitate the replacement of the gravity structure 4 and the small air circle half ring 1, the present invention sets the connection method between the gravity structure 4 and the rotating shaft 3, and between the small air circle half ring 1 and the rotating shaft 3 to a detachable connection.

[0030] A connecting plate 5 is fixed on the frame, and a through hole is provided inside the connecting plate 5 which is adapted to the rotating shaft 3. The rotating shaft 3 is rotatably set in the through hole. An elastic element 6 in a compressed state is fixed in the connecting plate 5, and the end face of the elastic element 6 away from the connecting plate 5 abuts against the outer surface of the rotating shaft 3. The elastic element 6 in a compressed state applies an extrusion force to the rotating shaft 3, thereby reducing the swing amplitude of the rotating shaft 3 after the force of the yarn tube on the small balloon half ring 1 is removed, reducing the swing amplitude of the small balloon half ring 1 back and forth during reset, and improving the position stability of the small balloon half ring 1.

[0031] As a preferred embodiment of the present invention, the elastic element 6 is a spring, one end of the spring is fixed in the connecting plate 5, and the other end of the spring abuts against the outer surface of the rotating shaft 3. Because the end face of the compression spring has a sharp tip, it will scratch the rotating shaft 3 when it directly contacts the rotating shaft 3, thereby reducing the service life of the rotating shaft 3. To improve this problem, the present invention preferably provides a pressing ball 7 at one end of the spring close to the rotating shaft 3. The pressing ball 7 has a pressing surface with a smooth surface, and the pressing surface abuts against the outer surface of the rotating shaft 3. To further improve the contact stability between the rotating shaft 3 and the pressing ball 7, the part of the rotating shaft 3 located in the connecting plate 5 is provided with a groove 8 adapted to the curvature radius of the pressing ball 7. The pressing ball 7 is rotatably set in the groove 8. Such a setting can limit the forward and backward displacement of the rotating shaft 3 through the fixed pressing ball 7, ensuring that there will be no large misalignment between the two small air ring half rings 1, thereby further improving the position stability of the small air ring half ring 1; in addition, by improving the smoothness of the pressing ball 7 and the groove 8, the rotation smoothness of the rotating shaft 3 can also be improved. The material of the pressing ball 7, the rotating shaft 3, the gravity structure 4, and the small balloon half ring 1 can be metal or ceramic. The present invention does not specifically limit the material of the pressing ball 7, the rotating shaft 3, the gravity structure 4, and the small balloon half ring 1. The end face of one side of the small balloon half ring 1 is provided with a guide bevel 9 for facilitating yarn feeding, and the other side is provided with a curved arc segment 10 inclined outward. A channel is formed between the guide bevel 9 of one small balloon half ring 1 and the curved arc segment 10 of the other small balloon half ring 1 for facilitating the passage of yarn. The minimum width of the channel is greater than the diameter of the yarn, so as to improve the yarn threading efficiency.

[0032] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description. It is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention, and any reference signs in the claims should not be construed as limiting the claims to which they relate.

Claims

1. A spinning tension control mechanism, characterized in that: The invention comprises two small balloon half rings that can rotate under the action of the bobbin, the openings of the two small balloon half rings are arranged facing each other, and the two small balloon half rings enclose a circular ring for constraining the balloon, and the inner diameter of the circular ring is between the maximum diameter and the minimum diameter of the bobbin; the small balloon half rings are connected to a gravity structure that can drive the small balloon half rings to rotate through a rotating shaft, the middle part of the rotating shaft is rotatably arranged on the frame, the mass of the gravity structure is greater than the mass of the small balloon half rings, the radial direction of the small balloon half rings is not parallel to the length direction of the gravity structure, and the small balloon half rings and the gravity structure are respectively arranged at both ends of the rotating shaft; A connecting plate is fixed on the frame, the rotating shaft is rotatably arranged in the connecting plate, an elastic element in a compressed state is fixed in the connecting plate, and the end surface of the elastic element away from the connecting plate abuts against the outer surface of the rotating shaft.

2. The spinning tension control mechanism according to claim 1, characterized in that: The elastic element is a spring, one end of the spring is fixed in the connecting plate, and the other end of the spring is in contact with the outer surface of the rotating shaft.

3. The spinning tension control mechanism according to claim 2, characterized in that: A pressing ball is provided at one end of the spring close to the rotating shaft. The pressing ball has a pressing surface with a smooth surface, and the pressing surface abuts against the outer surface of the rotating shaft.

4. The spinning tension control mechanism according to claim 3, characterized in that: The portion of the rotating shaft located in the connecting plate is provided with a groove adapted to the pressing ball, and the pressing ball is rotatably arranged in the groove.

5. The spinning tension control mechanism according to claim 1, characterized in that: The small air circle semi-ring is a semicircular ring with a mass smaller than that of the gravity structure.

6. The spinning tension control mechanism according to claim 1, characterized in that: The two ends of the small balloon half ring are respectively provided with a guiding slope and a curved arc segment for facilitating the feeding of yarn. A channel for facilitating the passage of yarn is formed between the guiding slope of one small balloon half ring and the curved arc segment of the other small balloon half ring, and the minimum width of the channel is greater than the diameter of the yarn.

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