Tightening mechanism for yarn conveying of textile machinery

Abstract

The utility model is applicable to the technical field of yarn conveying, and discloses a tightening mechanism for yarn conveying of textile machinery, two sides of the bottom of each connecting plate are vertically and fixedly provided with supporting plates, a conveying roller is rotatably arranged between side edges of every two groups of supporting plates, a bidirectional screw rod is vertically and rotatably arranged in each hollow frame through a bearing, and the two ends of each bidirectional screw rod are respectively provided with a nut. The two sides of the outer portion of each two-way lead screw are movably sleeved with lifting sleeves through threads, a synchronizing mechanism is arranged in the transmission frame, and the synchronizing mechanism is in transmission connection with the top ends of the two-way lead screws. According to the technical scheme, the distance between the two sets of conveying rollers is adjusted, so that when yarn penetrates through the conveying rollers, the tension degree of the yarn can be adjusted through abutting of the conveying rollers, and meanwhile the tension degree of multiple strands of yarn can be synchronously adjusted from the two sides of the installation table; the operation steps needed for adjusting the same tension degree of the multiple strands of yarn are reduced, and then the yarn conveying and winding efficiency is improved.

Description

Technical Field

[0001] This utility model applies to the field of yarn conveying technology, and in particular relates to a tensioning mechanism for yarn conveying in textile machinery. Background Technology

[0002] Currently, when conveying textile yarns, the difference between the yarn winding speed and the conveying speed can cause the yarn to be too loose or too tight during the conveying process. Consequently, during the subsequent winding process, the yarn cannot be completely and evenly wound on the winding reel. Therefore, it is necessary to use an appropriate tensioning mechanism to adjust the tension of the yarn during the conveying process.

[0003] However, current methods for adjusting the tension of textile yarns often only allow for the feeding and adjustment of single strands. When feeding and adjusting multiple strands, the material properties and actual feeding conditions of these strands vary, making it impossible to perform synchronous or tailored adjustments based on the specific conditions of each strand. This forces operators to adjust the yarn tension in multiple sequential steps, which is time-consuming, labor-intensive, and negatively impacts the quality of yarn feeding and winding. Therefore, we propose a tensioning mechanism for yarn feeding in textile machinery. Utility Model Content

[0004] The main objective of this invention is to provide a tensioning mechanism for yarn conveying in textile machinery, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A tensioning mechanism for yarn conveying in textile machinery includes a mounting platform, with hollow frames vertically fixedly mounted at both ends of the side of the mounting platform, and a transmission frame fixedly mounted between the tops of the hollow frames.

[0007] Sliding plates are slidably installed on both sides of the hollow frame. Connecting plates are fixedly installed on the sides of the sliding plates. Support plates are vertically fixedly installed on both sides of the bottom of each connecting plate. Conveying rollers are rotatably installed between the sides of every two sets of support plates.

[0008] Each hollow frame has a bidirectional lead screw mounted vertically via bearings. Each bidirectional lead screw has a lifting sleeve threadedly connected to both sides of its outer side. The outer side of the lifting sleeve is fixedly connected to the outer side of the sliding plate. The transmission frame has a synchronization mechanism inside, which is connected to the top of the bidirectional lead screw.

[0009] By adopting the above technical solution, the distance between the two sets of conveying rollers is adjusted by the driving and adjustment action of the bidirectional lead screw through the synchronization mechanism. This allows the yarn to be adjusted in tension by the resistance of the conveying rollers as it passes through them. At the same time, the tension of multiple strands of yarn can be adjusted synchronously from both sides of the mounting platform, reducing the number of operation steps required to adjust the tension of multiple strands of yarn at the same level, thereby improving the efficiency of yarn conveying and winding.

[0010] As an optional solution to the technical solution of this application, the synchronization mechanism includes a transmission sprocket and a follower sprocket. A transmission tube is rotatably mounted on both sides of the transmission frame via bearings, and the bottom of the transmission tube is fixedly connected to the top of the bidirectional lead screw. A fixed sleeve is fitted onto the outer side of each transmission tube, and a follower sprocket is fixedly fitted onto the outer side of each fixed sleeve. A rotating rod is vertically rotatably mounted on the middle of the inner side of the transmission frame via bearings. A servo motor is fixedly mounted on the middle of the outer side of the transmission frame, and the bottom of the servo motor's transmission shaft is fixedly connected to the top of the rotating rod via a coupling. A transmission sprocket is fixedly fitted onto the outer surface of each rotating rod, and a transmission chain ring meshes between the outer sides of the follower sprocket and the transmission sprocket.

[0011] By adopting the above technical solution, the transmission chain ring can mesh with the transmission sprocket and the follower sprocket, which can drive the two sets of follower sprockets to rotate synchronously and in the same direction when the servo motor is running, thereby providing the power required for the adjustment of the conveyor roller.

[0012] As an optional solution to the technical solution of this application, a lifting plate is slidably installed on the top inner side of each transmission tube, a pushing block is fixedly installed on the bottom surface of each lifting plate, a limiting rod is slidably installed laterally at both ends of the side of each transmission tube, a transmission block is fixedly installed on the top end of the side of each limiting rod, and the transmission block is located below the pushing block, a return spring is movably sleeved on the outside of each limiting rod, and the two ends of the return spring are respectively movably attached to the outer wall of the pushing block and the inner wall of the transmission tube, a limiting slot is opened at both ends of the inner side of each fixed sleeve, and the limiting slot and the limiting rod are at the same horizontal position, and adjusting bolts are screwed to the top of the transmission frame on both sides by threads, and the bottom of the adjusting bolts is rotatably inserted into the top of the lifting plate through a bearing.

[0013] By adopting the above technical solution, the interaction between the transmission block and the push block allows for the control and adjustment of whether the follower sprocket and the transmission tube are connected to each other when the adjusting bolt is turned, thereby facilitating the synchronous or asynchronous adjustment of the yarn tension.

[0014] As an optional solution to the technical solution of this application, each of the transmission tubes has a vertically opened movable groove inside, and the lifting plate is slidably installed inside the movable groove. Each of the transmission tubes has a horizontally opened sliding groove on both sides of the bottom, and the limiting rod is slidably installed inside the sliding groove. Each of the hollow frames has a limiting sliding groove at both ends of the side, and the side of the sliding plate is slidably inserted into the limiting sliding groove.

[0015] By adopting the above technical solution, under the guiding and limiting effect of the limiting groove on the side of the sliding plate, when the bidirectional screw rotates, the lifting sleeve connected to the sliding plate transmission will not rotate axially, but can only move vertically inside the hollow frame, thereby ensuring the rationality of the transmission of the overall mechanism.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. A tensioning mechanism for yarn conveying in textile machinery, as described in this application, comprises a bidirectional lead screw installed inside a hollow frame, with lifting sleeves fitted on both sides of the bidirectional lead screw. Through the connection and transmission of the transmission pipe, which is fitted with a fixed sleeve and a follower sprocket, and the bidirectional lead screw, the follower sprocket and the transmission sprocket are simultaneously engaged with the transmission chain ring. When the servo motor rotates, driving its bottom connecting rod and the transmission sprocket, it simultaneously drives the follower sprockets on both sides to rotate in the same direction. This, in turn, drives the fixed sleeve and the transmission pipe, which are connected to the follower sprockets, to rotate synchronously. This allows the two sets of bidirectional lead screws connected to the transmission pipe to... The two sets of lifting sleeves rotate synchronously and in the same direction. Combined with the rotational transmission action of the bidirectional screw on the lifting sleeves, they can drive the two sets of lifting sleeves to move synchronously vertically towards each other or relative to each other inside the hollow frame. This, in turn, drives the two sets of sliding plates and conveying rollers located diagonally outside the transmission frame to move synchronously vertically towards each other or relative to each other. The distance between the two sets of conveying rollers is adjusted so that the yarn can be adjusted in tension by the resistance of the conveying rollers when passing through them. At the same time, the tension of multiple strands of yarn can be adjusted synchronously from both sides of the mounting platform, reducing the number of operation steps required to adjust the tension of multiple strands of yarn at the same level, thereby improving the efficiency of yarn conveying and winding.

[0018] 2. The yarn tensioning mechanism for textile machinery according to the present application comprises a vertically movable lifting plate inside a transmission tube, and an isosceles triangular push block at the bottom of the lifting plate. Combined with limit rods movable on both sides inside the transmission tube and a right-angled triangular transmission block, when the adjusting bolt is turned, causing the lifting plate and the push block to move vertically synchronously, the push block abuts against the transmission block, and under the reverse pushing action of the return spring, the horizontal position of the limit rod inside the transmission tube can be adjusted for applicability. This allows for adjustment of the transmission connection between the fixed sleeve and the transmission tube, thereby enabling step-by-step adjustment of multiple strands of yarn with different tensions. This avoids affecting the tension adjustment of the yarn due to the synchronicity of the adjustment, further improving the applicability of the overall mechanism. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a yarn conveying adjustment mechanism for textile machinery according to the present invention.

[0020] Figure 2 This is a side view sectional view of the transmission frame of a yarn conveying and adjusting mechanism for textile machinery according to the present invention.

[0021] Figure 3 This is a top view cross-sectional diagram of the hollow frame structure of a yarn conveying and tightening mechanism for textile machinery according to this utility model.

[0022] Reference numerals: 1. Mounting platform; 11. Hollow frame; 12. Sliding plate; 13. Connecting plate; 14. Support plate; 15. Conveying roller; 2. Transmission frame; 21. Transmission pipe; 22. Fixed sleeve; 23. Transmission sprocket; 24. Rotating rod; 25. Follower sprocket; 26. Transmission chain ring; 27. Two-way lead screw; 28. Lifting sleeve; 29. ​​Limiting groove; 3. Movable groove; 31. Adjusting bolt; 32. Lifting plate; 33. Push block; 34. Sliding groove; 35. Limiting rod; 36. Return spring; 37. Limiting slot; 38. Transmission block; 4. Servo motor. Detailed Implementation

[0023] like Figure 1-3 As shown, this utility model provides a technical solution: a tensioning mechanism for yarn conveying in textile machinery. Hollow frames 11 are vertically fixedly installed at both ends of the side of the mounting platform 1. A transmission frame 2 is fixedly installed between the tops of the hollow frames 11. Sliding plates 12 are slidably installed on both sides of the outer side of the hollow frames 11. Connecting plates 13 are fixedly installed on the sides of the sliding plates 12. Support plates 14 are vertically fixedly installed on both sides of the bottom of each connecting plate 13. Conveying rollers 15 are rotatably installed between the sides of every two sets of support plates 14.

[0024] In this technical solution (through Figure 1, Figure 2 and Figure 3 As shown, each transmission tube 21 has a lifting plate 32 slidably installed on the top inner side, and a pushing block 33 is fixedly installed on the bottom surface of each lifting plate 32. Limiting rods 35 are slidably installed laterally on both sides of the transmission tube 21. A transmission block 38 is fixedly installed on the top side of each limiting rod 35, and the transmission block 38 is located below the pushing block 33. Limiting slots 37 are opened at both ends of the inner side of each fixing sleeve 22, and the limiting slots 37 and the limiting rods 35 are at the same horizontal position. Adjusting bolts 31 are screwed to both sides of the top of the transmission frame 2 by threads, and the bottom of the adjusting bolts 31 is inserted into the top of the lifting plate 32 by bearing rotation.

[0025] In this technical solution (through Figure 1 , Figure 2 and Figure 3 As shown), each limiting rod 35 is movably sleeved with a return spring 36 on its outer side, and the two ends of the return spring 36 are respectively movably attached to the outer wall of the push block 33 and the inner wall of the transmission tube 21.

[0026] In this technical solution (through Figure 1 , Figure 2 and Figure 3 As shown, the synchronization mechanism includes a transmission sprocket 23 and a follower sprocket 25. Transmission tubes 21 are rotatably mounted on both sides of the transmission frame 2 via bearings, and the bottom of the transmission tube 21 is fixedly connected to the top of the bidirectional lead screw 27. A fixed sleeve 22 is fitted onto the outside of each transmission tube 21, and a follower sprocket 25 is fixedly fitted onto the outside of each fixed sleeve 22. A rotating rod 24 is vertically rotatably mounted on the middle of the inner side of the transmission frame 2 via bearings. A servo motor 4 is fixedly mounted on the middle of the outer side of the transmission frame 2, and the bottom of the servo motor 4's transmission shaft is fixedly connected to the top of the rotating rod 24 via a coupling. A transmission sprocket 23 is fixedly fitted onto the outer surface of each rotating rod 24, and a transmission chain ring 26 meshes between the follower sprocket 25 and the outer side of the transmission sprocket 23.

[0027] In some technical solutions (through Figure 1 , Figure 2 and Figure 3 As shown), each hollow frame 11 has a bidirectional lead screw 27 installed vertically through bearings. Each bidirectional lead screw 27 has a lifting sleeve 28 threadedly connected to both sides of its outer side. The outer side of the lifting sleeve 28 is fixedly connected to the outer side of the sliding plate 12. The transmission frame 2 is equipped with a synchronization mechanism, which is connected to the top of the bidirectional lead screw 27.

[0028] In some technical solutions (through Figure 1 , Figure 2 and Figure 3As shown, each transmission tube 21 has a vertically opening movable groove 3 inside, and the lifting plate 32 is slidably installed inside the movable groove 3. Each transmission tube 21 has a horizontally opening sliding groove 34 on both sides of the bottom, and the limiting rod 35 is slidably installed inside the sliding groove 34. Each hollow frame 11 has a limiting sliding groove 29 at both ends of its side, and the sliding plate 12 is slidably inserted into the limiting sliding groove 29.

[0029] During operation, the yarn with the required tension is passed from below the bottom conveyor roller 15 to above the top conveyor roller 15, and then wound onto the surface of the take-up reel. As the take-up reel rotates, the yarn is wound up. Based on the tension of the yarn during winding, when the required tension is reached, the adjusting bolt 31 is tightened, causing the lifting plate 32 to move vertically in sync. This causes the pushing block 33 to move vertically within the transmission tube 21, causing its side to tilt. After the surface of the push block 33 contacts the inclined surface of the transmission block 38, the push block 33 continuously descends, providing a corresponding horizontal pushing force to the transmission block 38. This allows the transmission block 38 to move horizontally relative to the inside of the transmission tube 21, thereby driving the limiting rod 35 to move horizontally relative to the inside of the transmission tube 21 and insert into the limiting slot 37. Under the abutment of the limiting rod 35, the transmission tube 21, the fixed sleeve 22, and the follower sprocket 25 are connected. Then, the servo motor 4 is turned on by the external control switch, causing it to run and drive the rotation. The rod 24 and the transmission sprocket 23 rotate synchronously. Combined with the meshing transmission between the transmission sprocket 23, the follower sprocket 25, and the transmission chain ring 26, the follower sprocket 25 and the transmission pipe 21 rotate synchronously and in the same direction. This causes the bidirectional lead screws 27 located on both sides of the mounting platform 1 to rotate synchronously and in the same direction. Combined with the guiding and limiting effect of the limiting groove 29 on the sliding plate 12, and the transmission action of the bidirectional lead screws 27 on the lifting sleeves 28, the two sets of lifting sleeves 28, together with the sliding plate 12, can rotate synchronously. The vertical relative movement increases the distance between the two sets of conveying rollers 15, thereby increasing the yarn tension and ensuring the yarn winding quality. When the winding tension of multiple strands of yarn on both sides is different, the adjusting bolt 31 at the corresponding position of the yarn to be adjusted is turned, while the adjusting bolt 31 on the other side is not turned. After repeating the above transmission process, the servo motor 4 can only drive the transmission tube 21 on one side to rotate synchronously when it is running, thereby realizing the adjustment of the yarn tension on one side.

Claims

1. A take-up mechanism for the transport of yarn in textile machinery, comprising a mounting table (1), characterized in that: The hollow frame (11) is vertically fixedly installed at both ends of the side of the mounting table (1), and a transmission frame (2) is fixedly installed between the top of the hollow frame (11). The sliding plate (12) is slidably installed on the outside of the hollow frame (11), the connecting plate (13) is fixedly installed on the side of the sliding plate (12), the support plate (14) is vertically fixedly installed on the bottom of each connecting plate (13), and the conveying roller (15) is rotatably installed between the side edges of every two groups of support plates (14). The bidirectional screw rod (27) is vertically rotatably installed in the hollow frame (11) through a bearing, the lifting sleeve (28) is movably sleeved on the outside of the bidirectional screw rod (27) through threads, the outside of the lifting sleeve (28) is fixedly connected with the outside of the sliding plate (12), and the transmission frame (2) is provided with a synchronous mechanism, and the synchronous mechanism is in transmission connection with the top end of the bidirectional screw rod (27).

2. A take-up mechanism for a textile machine according to claim 1, characterized in that: The transmission chain wheel (23) and the follow-up chain wheel (25) are included in the synchronous mechanism, the transmission pipe (21) is rotatably installed on the inside of the transmission frame (2) through a bearing, the bottom of the transmission pipe (21) is fixedly connected with the top of the bidirectional screw rod (27), the fixed sleeve (22) is sleeved on the outside of each transmission pipe (21), the follow-up chain wheel (25) is fixedly sleeved on the outside of each fixed sleeve (22), the rotating rod (24) is vertically rotatably installed on the inside of the middle end of the transmission frame (2) through a bearing, the servo motor (4) is fixedly installed on the middle end of the outside of the transmission frame (2), the transmission shaft of the servo motor (4) is fixedly connected with the top of the rotating rod (24) through a shaft coupling, the transmission chain wheel (23) is fixedly sleeved on the outside surface of each rotating rod (24), and the transmission chain ring (26) is meshingly sleeved between the outside of the follow-up chain wheel (25) and the transmission chain wheel (23).

3. A take-up mechanism for a textile machine according to claim 2, characterized in that: The lifting plate (32) is slidably installed on the inside top of each transmission pipe (21), the push block (33) is fixedly installed on the bottom surface of each lifting plate (32), the limiting insertion rod (35) is transversely and slidably installed at both ends of the side of the transmission pipe (21), the transmission block (38) is fixedly installed at the top of the side edge of each limiting insertion rod (35), and the transmission block (38) is located below the push block (33).

4. A thread take-up mechanism for a textile machine according to claim 3, characterized in that: The reset spring (36) is movably sleeved on the outside of each limiting insertion rod (35), and the two ends of the reset spring (36) are movably attached to the outside wall of the push block (33) and the inside wall of the transmission pipe (21) respectively.

5. The take-up mechanism for a textile machine according to claim 2, characterized in that: The limiting insertion groove (37) is formed at both ends of the inside of each fixed sleeve (22), the limiting insertion groove (37) and the limiting insertion rod (35) are located at the same horizontal position, the adjusting bolt (31) is screwed at both sides of the top of the transmission frame (2), and the bottom of the adjusting bolt (31) is rotatably inserted into the inside top of the lifting plate (32) through a bearing.

6. The take-up mechanism for a textile machine according to claim 2, characterized in that: Each of the transmission pipes (21) is vertically provided with a movable slot (3) inside, and a lifting plate (32) is slidingly installed inside the movable slot (3); both sides of the bottom of each of the transmission pipes (21) is transversely provided with a sliding slot (34), and a limiting insertion rod (35) is slidingly installed inside the sliding slot (34); both ends of the side edges of each of the hollow frames (11) are provided with limiting sliding slots (29), and the side edges of a sliding plate (12) are slidingly inserted into the limiting sliding slots (29).

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