A guide device for a ring spinning machine

Abstract

The utility model relates to a yarn guide device for ring spinning frame, is equipped with support rod axle hole on the both side seat board of yarn guide plate support, is equipped with screw hole on end plate, the yarn guide plate includes main board, both side board and the guide slide groove of front part, the inside of yarn guide plate support is set up in the inside of yarn guide plate, the spring pin of both side board is hinged with yarn guide plate support, the one end of torsional spring on spring pin is supported in the inside of main board, the other end is clamped in the rear part of yarn guide plate support, the yarn guide hook includes the U-shaped guide slide rail rod, the cantilevered rod and the front rod piece that are arranged from back to front in proper order integrally, has the open loop over the yarn hole of front rod piece, the U-shaped guide slide rail rod of yarn guide hook sets up in the guide slide groove of yarn guide plate front part and is connected through fastener the utility model structure is simple, is convenient for adjustment and reduces yarn guide hook and the relative position of gas ring height, can control small yarn section yarn loop in the high -speed spinning process, stabilizes yarn tension, can reduce yarn breakage.

Description

Technical Field

[0001] This utility model relates to a yarn guide device for a ring spinning machine, belonging to the technical field of ring spinning machines. Background Technology

[0002] The yarn guide in a ring spinning machine is used to guide the yarn and, through its rotation, to generate additional twist in the yarn, thereby improving the yarn quality. The yarn guide is an important component of the ring spinning machine; it has a rotationally symmetrical through-hole for the yarn and can rotate about the longitudinal axis of this through-hole.

[0003] With the increasing demands for high speed, high output, and high quality in ring spinning machines, the centrifugal force generated by the rotating traveler increases with spindle speed, leading to increased yarn tension and consequently, more yarn breakage. Therefore, an increase in yarn breakage after spinning is inevitable. The distribution of yarn breakage after spinning is highest in fine yarns, lowest in large yarns, and lowest in medium yarns. After ruling out factors such as poor air conditioning, inadequate machine operation and cleaning, faulty bobbins, and faulty rovings, the main cause of fine yarn breakage is the control of yarn tension during fine yarn breakage by the air rings. The existing yarn guide consists of a yarn guide plate bracket and a yarn guide plate connected to a yarn guide hook. The yarn guide plate bracket is mounted on a support shaft, and the yarn guide plate is connected to the yarn guide plate bracket via a spring pin, allowing the yarn guide plate to rotate relative to each other to open or be in working condition. A yarn guide hook is installed at the front of the yarn guide plate, with the yarn passage hole at the front and the rod at the rear of the yarn guide hook on the same plane. The air ring located below the yarn guide hook is mounted on the top of the air ring bracket via an air ring screw, and the lower part of the air ring bracket is mounted on the ring plate. The air ring will rise and fall with the ring plate. When the yarn is in the full yarn position, the heads of the air ring screws on the yarn guide plate and the air ring are close together. At the beginning of spinning, the relative position between the yarn guide hook and the air ring is too high. During high-speed spinning, the yarn air ring below the air ring does not open and adhere to the bobbin wall, and the yarn air ring above the air ring is too large. During the rising of the ring plate, the yarn air ring above the air ring is easily squeezed and burst, resulting in yarn breakage. Secondly, the yarn guide hooks on the yarn guide are installed on the yarn guide plate by fasteners, but the heads of the fasteners and the torsion spring arms are exposed, causing fly waste to accumulate and easily lead to yarn breakage during spinning. Furthermore, the plastic yarn guide plates commonly used on ring spinning machines are prone to fly waste sticking to the surface and static electricity causing hand injuries when yarn breaks or splices. Summary of the Invention

[0004] The purpose of this invention is to provide a yarn guide device for ring spinning machines that has a simple structure, is easy to adjust and lower the relative height of the yarn guide hook and the air ring, can control the air ring of small yarn segments during high-speed spinning, stabilize yarn tension, and reduce yarn breakage.

[0005] The technical solution of this utility model to achieve the above-mentioned objectives is: a yarn guide device for a ring spinning machine, comprising a yarn guide plate bracket, a yarn guide plate, and a yarn guide hook; characterized in that: The yarn guide plate bracket is used to connect to the support rod shaft. The yarn guide plate bracket includes two integral side seats and a front end plate. The side seats are provided with support rod shaft holes, and the end plate is provided with threaded holes. The yarn guide plate is used to connect the yarn guide plate bracket and the yarn guide hook. The yarn guide plate includes a main plate, two side plates and a front guide groove. The yarn guide plate bracket is set on the inner side of the yarn guide plate. The spring pins set at the far ends of the two side plates are hinged to the yarn guide plate bracket. One end of the torsion spring fitted on the spring pin is pressed against the inner side of the main plate and the other end is engaged with the rear of the yarn guide plate bracket. The yarn guide hook includes a U-shaped guide rail rod, a cantilever rod sloping downwards and forwards, and a front rod, arranged in sequence from back to front. The front rod has an open and annular yarn passage hole. The U-shaped guide rail rod of the yarn guide hook is set in the guide groove at the front of the yarn guide plate and connected by fasteners. The upper end face of the fastener is flush with or lower than the upper end face of the main board.

[0006] The yarn guide device of this utility model adopts a rear U-shaped guide rail rod, a forward and downward inclined cantilever rod, and a front rod through which the yarn passes through an open and annular yarn passage hole. Through the cantilever rod structure of the yarn guide hook, the structure is simple and reasonable. When the yarn is in the full yarn position, the yarn guide hook is set inside the air ring, which can increase the clearance space between the yarn guide plate and the screw head of the air ring, greatly improve the adjustment range of the relative position of the yarn guide hook and the air ring, reduce the height of the yarn guide hook and the air ring during the yarn forming process, facilitate the control of the yarn air ring during the yarn spinning process, stabilize the yarn tension, and reduce the occurrence of yarn breakage during the small yarn spinning stage. The U-shaped guide rail rod of this utility model is set in the guide groove of the yarn guide plate and connected to the upper part of the yarn guide plate by fasteners. Since the upper end face of the fastener is level with or lower than the upper end face of the main board, and one end of the torsion spring is pressed against the inner side of the main board of the yarn guide plate, the yarn guide plate is greatly reduced to prevent yarn snagging and reduce yarn breakage caused by yarn drift during the spinning process. Attached Figure Description

[0007] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0008] Figure 1 This is a schematic diagram of the yarn guide device of the ring spinning machine of this utility model.

[0009] Figure 2 yes Figure 2 A top-view structural diagram.

[0010] Figure 3 This is a schematic diagram of the structure of the yarn guide hook of this utility model.

[0011] Figure 4 yes Figure 3 Top view.

[0012] Figure 5 This is a three-dimensional schematic diagram of a structure of the yarn guide hook of this utility model.

[0013] Figure 6 This is a schematic diagram of another structure of the yarn guide hook of this utility model.

[0014] Figure 7 yes Figure 6 Top view.

[0015] Figure 8 This is a three-dimensional schematic diagram of another structure of the yarn guide hook of this utility model.

[0016] Figure 9 This is a schematic diagram of the yarn guide hook and air ring of this utility model at the starting spinning position.

[0017] Figure 10 This is a schematic diagram of the structure of the yarn guide hook and the air ring of this utility model at the full yarn position.

[0018] Wherein: 1—Yarn guide plate, 1-1—Main board, 1-11—Upper boss, 1-2—Side plate, 1-3—Front plate, 1-31—Slot, 1-4—Guide slide groove, 2—Spring pin, 3—Torsion spring, 4—Yarn guide plate bracket, 4-1—Seat plate, 4-11—Support rod shaft hole, 4-12—Bayonet, 4-2—End plate, 5—Set screw, 6—Counterhead flat base screw, 7—Nut, 8—Yarn guide hook, 8-1—U-shaped guide slide rail rod, 8-2—Cantilever rod, 8-3—Front rod, 8-31—Yarn passage hole, 8-32—Yarn guide part, 8-4—Yarn guide rod, 9—Yarn, 9-1—Lower yarn air ring, 9-2—Lower yarn air ring, 10—Support rod shaft, 11—Air ring ring, 11-1—Air ring ring screw. Detailed Implementation

[0019] See Figures 1-2 As shown, a yarn guide device for a ring spinning machine includes a yarn guide plate bracket 4, a yarn guide plate 1, and a yarn guide hook 8. The yarn guide plate bracket 4 of this invention is connected to a support shaft 10. The yarn guide plate bracket 4 includes two integral side plates 4-1 and a front end plate 4-2. The yarn guide plate bracket 4 is formed by folding metal edges to facilitate the release of static electricity generated during yarn spinning. See [link to diagram]. Figures 1-2As shown in Figures 9 and 10, the yarn guide plate bracket 4 of this utility model has support rod shaft holes 4-11 on both sides of the seat plate 4-1 and threaded holes on the end plate 4-2. The support rod shaft holes 4-11 on the seat plate 4-1 of the yarn guide plate bracket 4 are inserted into the support rod shaft 10. The set screw 5 is screwed into the threaded hole of the end plate 4-2 and pressed against the support rod shaft 10. The yarn guide plate bracket 4 is then installed on the support rod shaft 10.

[0020] See Figures 1-2 As shown, the yarn guide plate 1 of this utility model is used to connect the yarn guide plate bracket 4 and the yarn guide hook 8. The yarn guide plate 1 includes a main plate 1-1, two side plates 1-2, and a front guide groove 1-4. The yarn guide plate 1 is formed by folding metal material, which facilitates the release of static electricity generated during yarn weaving and solves the problem of yarn sticking to the surface of the yarn guide plate 1 and static electricity hitting the hands when the yarn breaks. The yarn guide plate bracket 4 is set on the inner side of the yarn guide plate 1. The spring pins 2 set at the far ends of the two side plates 1-2 are hinged to the yarn guide plate bracket 4, so that the yarn guide plate 1 can rotate upward and flip the yarn guide plate 1 relative to the yarn guide plate bracket 4 along the central axis of the spring pins 2. The two ends of the spring pins 2 of this utility model are flush with the outer wall of the side plates 1-2 of the yarn guide plate 1, further reducing the yarn snagging phenomenon of the yarn guide plate 1. See Figure 1 , 2 As shown, one end of the torsion spring 3, which is mounted on the spring pin 2, rests against the inner side of the main board 1-1, and the other end is snapped into the rear part of the yarn guide plate bracket 4. The end of the force-applying arm of the torsion spring 3 rests against the inner side of the main board 1-1, while the other end is snapped into the rear part of the yarn guide plate bracket 4. The torsion spring 3 is reliably installed on the yarn guide plate 1 and the yarn guide plate bracket 4. Since the force-applying arm of the torsion spring 3 is built into the main board 1-1 and will not protrude from the outside of the yarn guide plate 1, the snagging phenomenon of the yarn guide plate 1 can also be reduced.

[0021] See Figures 1-2 As shown, the yarn guide hook 8 of this utility model includes a U-shaped guide rail rod 8-1, a forward-sloping cantilever rod 8-2, and a front rod 8-3 arranged sequentially from back to front. The front rod 8-3 has an open and annular yarn passage hole 8-31. By lowering the height of the yarn tube and the balloon ring during the yarn forming process through the forward-sloping cantilever rod 8-2, during high-speed spinning, the yarn balloon 9 below the balloon ring 11 opens, preventing the yarn balloon below the balloon ring 11 from not opening and sticking to the bobbin wall, and preventing the yarn balloon 9-1 above the balloon ring 11 from being too large and causing yarn breakage. This balances the diameter of the upper and lower yarn balloons, thereby reducing yarn tension and reducing yarn breakage when the spindle speed is increased. See Figure 1 , 2As shown, the U-shaped guide rail rod 8-1 of the yarn guide hook 8 of this utility model is set in the guide groove 1-4 at the front of the yarn guide plate 1 and connected by fasteners, which facilitates the adjustment of the extended position of the yarn guide hook 8. Furthermore, the upper end face of the fastener is flush with or lower than the upper end face of the main plate 1-1, thus reducing the phenomenon of yarn snagging on the yarn guide plate 1 caused by the fastener extending outwards. See Figure 2 As shown, the fastener of this utility model includes a countersunk flat base screw 6 and a nut 7. The nut 7 is set in the guide groove 1-4 of the yarn guide plate 1, and the two limiting surfaces of the nut 7 are in contact with the groove wall of the guide groove 1-4. The threaded section of the countersunk flat base screw 6 passes through the countersunk tapered hole on the main plate 1-1 and is screwed onto the nut 7. Square, rectangular, rhomboid, etc. nuts 7 can be used. Its two parallel sides are in contact with the groove wall of the guide groove 1-4, so that the nut 7 will not rotate when the countersunk flat base screw 6 is tightened, thus achieving quick installation.

[0022] See Figures 1-8 As shown, the angle α between the central axis of the cantilever rod of the yarn guide hook 8 and the central plane of the U-shaped guide rail rod is between 45° and 90°. For example, the angle α between the central axis of the cantilever rod of the yarn guide hook 8 and the central plane of the U-shaped guide rail rod is 50°, 60°, 70°, and 80°, etc. Figure 9 As shown, at the initial spinning position, the height between the yarn guide hook 8 and the air ring 11 can be reduced. Figure 10 As shown, when the yarn is in the full yarn position, the yarn passage hole 8-31 at the front of the yarn guide hook 8 is set inside the air ring 11, which increases the clearance space between the yarn guide plate 1 and the air ring screw 11-1, making it easier to adjust the relative position of the height of the yarn guide hook 8 and the air ring 11.

[0023] See Figures 3-5 As shown, this utility model discloses a yarn guide hook 8. The front member 8-3 of the yarn guide hook 8 spirals upwards and gradually narrows to form an open yarn passage hole 8-31. At the starting end of the spiraling motion, the front member 8-3 is provided with a downwardly inclined yarn guide rod 8-4. Figure 4 As shown, the angle β between the central axis of the yarn guide rod and the central plane of the yarn passage hole is between 0 and 20°, such as 10°, 15°, 18°, etc.

[0024] See Figures 6-8 As shown, this is another structure of the yarn guide hook 8 of this utility model. The front rod 8-3 of the yarn guide hook 8 extends upwards and then forwards to form a yarn passage hole 8-31 with an opening. The central axis of the front section and the central axis of the rear section of the front rod 8-3 at the yarn passage hole 8-31 are parallel to the central plane of the U-shaped guide rail rod 8-1. The front rod 8-3 has a downwardly inclined yarn guide portion 8-32 at the front of the front section. Figure 7As shown, the angle γ between the central axis of the yarn guide section and the central axis of the rear bar section is between 150° and 180°, such as 160° or 170°.

[0025] See Figures 1-2 As shown in Figures 9 and 10, the cross surface of the support shaft hole 4-11 on the two side seats 4-1 of the yarn guide plate bracket 4 of this utility model is a D-shaped hole. The D-shaped hole on the seat 4-1 is set on the support shaft 10 with a D-shaped cross section, so that the support shaft 10 with a D-shaped cross section matches the D-shaped hole on the yarn guide plate bracket 4. This facilitates the rotation of the yarn guide plate 1 to avoid the yarn falling when the ring spinning machine automatically does not fall. The set screw 5 is screwed into the threaded hole of the end plate 4-2 and presses against the arc surface of the support shaft 10. One of the seat plates 4-1 has a latch 4-12 at the lower rear part. The latch 4-12 can be located at the lower rear part of the left seat plate 4-1. The other end of the torsion spring 3 has a right-angle hook and is latched at the latch 4-12. The latch 4-12 at the lower rear part of the seat plate 4-1 of this utility model is a U-shaped groove or a closed round hole, which facilitates the other end of the torsion spring 3 to be latched on the U-shaped groove or round hole.

[0026] See Figures 1-2 As shown in Figures 9 and 10, the yarn guide plate 1 of this utility model has a concave upper boss 1-11 at the rear end of the main plate 1-1, thus forming a groove on the inner wall of the main plate 1-1 of the yarn guide plate 1. One end of the torsion spring 3 abuts against the upper boss 1-11, that is, the end of the torsion spring 3 force arm abuts against the upper boss 1-11, limiting the force arm of the torsion spring 3. The yarn guide plate 1 has a downwardly curved front plate 1-3 at the front of the guide groove 1-4. The front plate 1-3 has slots 1-31 on both sides to limit the yarn guide hook 8, reducing the shaking of the yarn guide hook 8.

Claims

1. A yarn guide device for a ring spinning machine, comprising a yarn guide plate bracket (4), a yarn guide plate (1), and a yarn guide hook (8); characterized in that: The yarn guide plate bracket (4) is used to connect to the support rod shaft (10). The yarn guide plate bracket (4) includes two integral side seat plates (4-1) and a front end plate (4-2). The two side seat plates (4-1) are provided with support rod shaft holes (4-11), and the end plate (4-2) is provided with threaded holes. The yarn guide plate (1) is used to connect the yarn guide plate bracket (4) and the yarn guide hook (8). The yarn guide plate (1) includes a main plate (1-1), two side plates (1-2) and a front guide groove (1-4). The yarn guide plate bracket (4) is located on the inner side of the yarn guide plate (1). The spring pins (2) located at the far ends of the two side plates (1-2) are hinged to the yarn guide plate bracket (4). One end of the torsion spring (3) fitted on the spring pin (2) is pressed against the inner side of the main plate (1-1), and the other end is engaged with the rear of the yarn guide plate bracket (4). The yarn guide hook (8) includes a U-shaped guide rail rod (8-1), a cantilever rod (8-2) that slopes forward and downward and a front rod (8-3) arranged in sequence from back to front. The front rod (8-3) has an open and annular yarn passage hole (8-31). The U-shaped guide rail rod (8-1) of the yarn guide hook (8) is set in the guide groove (1-4) at the front of the yarn guide plate (1) and connected by fasteners. The upper end face of the fastener is level with or lower than the upper end face of the main plate (1-1).

2. The yarn guide device for a ring spinning machine according to claim 1, characterized in that: The angle α between the central axis of the cantilever rod of the yarn guide hook (8) and the central plane of the U-shaped guide rail rod is 45~90°.

3. A yarn guide device for a ring spinning machine according to claim 1 or 2, characterized in that: The front rod (8-3) of the yarn guide hook (8) spirals upward and gradually narrows to form a yarn passage hole (8-31) with an opening. The front rod (8-3) is provided with a downwardly inclined yarn guide rod (8-4) at the starting end of the spiral. The angle β between the central axis of the yarn guide rod and the central plane of the yarn passage hole is 0~20°.

4. A yarn guide device for a ring spinning machine according to claim 1 or 2, characterized in that: The front rod (8-3) of the yarn guide hook (8) extends upward and forward to form a yarn passage hole (8-31) with an opening. The central axis of the front rod section and the central axis of the rear rod section of the front rod (8-31) are parallel to the central plane of the U-shaped guide rail rod. The front rod (8-3) has a downwardly inclined yarn guide part (8-32) at the front of the front rod section. The angle γ between the central axis of the yarn guide part and the central axis of the rear rod section is 150~180°.

5. A yarn guide device for a ring spinning machine according to claim 1, characterized in that: The cross surface of the support shaft hole (4-11) on the two side seat plates (4-1) of the yarn guide plate bracket (4) is a D-shaped hole. The D-shaped hole on the seat plate (4-1) is set on the support shaft (10) with a D-shaped cross section. The set screw (5) is screwed into the threaded hole of the end plate (4-2) and presses against the arc surface of the support shaft (10). One of the seat plates (4-1) has a bayonet (4-12) at the lower rear part. The other end of the torsion spring (3) has a right angle hook and is locked at the bayonet (4-12).

6. A yarn guide device for a ring spinning machine according to claim 5, characterized in that: The latch (4-12) at the lower rear of the seat plate (4-1) is a U-shaped slot or a closed round hole.

7. A yarn guide device for a ring spinning machine according to claim 1, characterized in that: The yarn guide plate (1) has a concave upper boss (1-11) at the rear end of the main plate (1-1). One end of the torsion spring (3) rests on the upper boss (1-11). The yarn guide plate (1) has a downwardly curved front plate (1-3) in front of the guide groove (1-4). The front plate (1-3) has slots (1-31) on both sides to limit the yarn guide hook (8).

8. A yarn guide device for a ring spinning machine according to claim 1, characterized in that: The two ends of the spring pin (2) are flush with the outer wall of the side plate (1-2) of the yarn guide plate (1).

9. A yarn guide device for a ring spinning machine according to claim 1, characterized in that: The fasteners include countersunk flat base screws (6) and nuts (7). The nuts (7) are set in the guide groove (1-4) of the yarn guide plate (1), and the two limiting surfaces of the nuts (7) are in contact with the groove wall of the guide groove (1-4). The threaded section of the countersunk flat base screws (6) passes through the countersunk tapered hole on the main plate and is screwed onto the nuts (7).

10. A yarn guide device for a ring spinning machine according to claim 1, characterized in that: The yarn guide plate bracket (4) and the yarn guide plate (1) are formed by folding metal material.

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