Guide bar device for drawing frame

Abstract

The utility model relates to the technical field of drawing frames, and discloses a sliver guiding device for a drawing frame, which comprises a support, a plurality of sliver guiding rollers rotatably connected to the support are arranged on the support at intervals, and the sliver guiding device is characterized in that a wire guiding mechanism is arranged on the side edge of each sliver guiding roller and comprises a plurality of pairs of wire guiding units which are arranged at intervals, the yarn guiding unit comprises a first round roller and a second round roller which are symmetrically arranged, a gap between the first round roller and the second round roller allows cotton slivers to penetrate through, the first round roller and the second round roller are rotationally connected to the supporting transverse plate, and a driving assembly for driving the first round roller and the second round roller to rotate is further arranged on the support. Displacement is avoided, conveying is stable, and the drawing quality is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of drawing frame equipment, and in particular to a guide frame device for a drawing frame. Background Technology

[0002] The function of a drawing frame is to improve the internal structure of the sliver, thereby increasing the uniformity of its long segments, reducing weight unevenness, straightening and paralleling the fibers in the sliver, reducing hooks, ensuring the fineness meets the specifications, and mixing different types or qualities of raw materials evenly to achieve the specified mixing ratio.

[0003] On one side of the drawing frame, there are multiple cotton sliver cans placed in sequence. The cotton sliver drawn from each cotton sliver can passes through the guide rollers in the guide mechanism set above each cotton roll in turn, and finally gathers into a bundling mechanism to form a smooth sliver. However, currently there is no guide mechanism designed above the guide rollers, which causes displacement and unstable conveying when multiple cotton slivers pass through the guide rollers. Utility Model Content

[0004] The purpose of this invention is to provide a guide device for a drawing frame, which has a separate channel for conveying the guide strip, thus avoiding displacement, ensuring smooth conveying, and improving the quality of drawing.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: It includes a support frame, on which a plurality of guide rollers rotatably connected are spaced apart. The characteristic feature is that each guide roller has a wire guiding mechanism on its side, the wire guiding mechanism comprising a plurality of pairs of spaced-apart wire guiding units, each wire guiding unit comprising two symmetrically arranged circular rollers, a first circular roller and a second circular roller, the gap between the first circular roller and the second circular roller allowing cotton slivers to pass through, the first circular roller and the second circular roller being rotatably connected to a support plate, and the support frame also having a drive assembly for driving the first circular roller and the second circular roller to rotate.

[0006] A further feature of this invention is that the driving assembly includes gear one and gear two, which are respectively fixed to the bottom surfaces of roller one and roller two. Gear one and gear two in each wire unit are externally meshed. Gear one in the wire unit near the bracket is coaxially and fixedly connected to the output shaft of drive motor one. A drive shaft is rotatably connected to the center of each gear two. A spline one is provided on the circumferential side of each drive shaft and is slidably connected to the outside of the drive shaft along the axis. A keyway one is recessed in the center of each gear two. The spline one can be keyed with the keyway one.

[0007] A further feature of this invention is that each drive shaft is fitted with a ring that is slidably fixed to a spline, and the bottom surface of the ring is recessed with an annular groove. A drive plate is engaged within the groove, and the drive plate is connected to the end of the piston rod of the cylinder.

[0008] A further feature of this invention is that a pulley is fixed on the drive shaft of each gear two, the pulley is located between gear two and the ring, a keyway two is provided at the center of the pulley, spline one can pass through keyway one and key engage with keyway two, the pulleys on the drive shafts of adjacent wire units are connected by belts, and two pulleys are fixed in parallel on the drive shaft of the middle wire unit.

[0009] A further feature of this invention is that both the first and second rollers are detachably covered with cleaning cloths.

[0010] A further feature of this invention is that a feeding guide rod is provided on the other side of the guide roller relative to the supporting horizontal plate, the feeding guide rod is fixed on the bracket, and a feeding guide ring is slidably connected to the feeding guide rod.

[0011] A further feature of this invention is that a lead screw parallel to the feed guide rod is provided on the bracket, and a slider is slidably connected to the lead screw and the feed guide rod.

[0012] A further feature of this invention is that the feed guide ring is connected to the slider one via a short rod.

[0013] A further feature of this invention is that the lead screw is coaxially and fixedly connected to the second motor.

[0014] A further feature of this invention is that a cover is fixed to the bottom surface of the supporting cross plate, and the drive shaft, cylinder, and belt are all located inside the cover.

[0015] The beneficial effects of this utility model are:

[0016] 1. The cotton sliver enters the feed guide ring and enters the gap between the first and second round rollers in the corresponding lead wire unit from the guide roller. Generally, the cotton sliver drawn from the cotton sliver tube furthest from the bundling mechanism passes through the lead wire unit closest to the support. It needs to pass through the gap at this location in each lead wire mechanism thereafter. The starting cotton sliver in each lead wire mechanism gradually moves away from the support and enters the corresponding lead wire unit along the direction closest to the bundling mechanism. This device is equipped with multiple sets of lead wire units, which are coordinated with the direction of the entire process. Each cotton sliver has a separate channel for passing through, avoiding displacement and achieving neat and orderly cotton sliver routing.

[0017] 2. The number of activated wire units in each wire guiding mechanism varies. Wire units closer to the support are activated in each mechanism. Activating drive motor one drives gear one to rotate, which in turn rotates roller one. Since gear two meshes externally with gear one, roller two rotates in the opposite direction to roller one, smoothly guiding the cotton sliver one through the gap between roller one and roller two. When multiple cotton slivers need to be passed through, the spline one on the drive shaft of the corresponding wire guiding unit passes through spline two on the pulley and engages with spline one. At this time, since gear two closer to the support is meshing externally with gear one and rotating, the drive shaft at that location rotates after the key engagement, thus driving the... The pulley on the shaft is driven to rotate. Furthermore, the drive shaft of gear two in the adjacent guide unit, driven by the belt, is also driven to rotate. Similarly, after the spline one on the adjacent drive shaft is engaged with keyway one and keyway two, the corresponding gear two is driven to rotate. Then, gear one and gear two in the guide unit rotate in opposite directions, and roller one and roller two in the guide unit can feed cotton strips. By analogy, the guide unit that needs to be started can be selected according to the cotton strips to be fed. The corresponding guide unit can be started adaptably according to the working conditions of the required number of cotton strips to be fed. The operation is simple and flexible, and it also effectively avoids the guide unit from running idle, which would cause waste.

[0018] 3. By installing cleaning cloths on roller one and roller two, the cotton slivers can be cleaned, improving the quality of the slivers. The removable cleaning cloths can be replaced at any time, improving practicality.

[0019] 4. By setting the feeding guide rod and feeding guide ring, the position of the cotton sliver can be adjusted according to the different positions. By starting the lead screw, the feeding guide ring slides on the feeding guide rod and aligns with the gap between the first and second round rollers in the corresponding lead wire unit, thereby improving the neatness of the thread feed. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the wire assembly in this utility model.

[0023] Figure 3 This is a schematic diagram of the wire unit and drive mechanism in this utility model.

[0024] In the diagram, 1. Support; 2. Guide roller; 3. Circular roller one; 4. Circular roller two; 5. Support plate; 6. Gear one; 7. Gear two; 8. Drive motor one; 9. Drive shaft; 10. Spline one; 11. Cover; 12. Ring; 13. Drive plate one; 14. Cylinder; 15. Pulley; 16. Feed guide rod; 17. Feed guide ring; 18. Lead screw; 19. Slider one; 20. Motor two. Detailed Implementation

[0025] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] An embodiment of a drawing frame guide device, such as... Figure 1-3As shown, the device includes a support 1, on which a plurality of guide rollers 2 are rotatably connected. The characteristic feature is that each guide roller 2 has a wire guiding mechanism on its side, comprising a plurality of pairs of spaced-apart wire guiding units. Each wire guiding unit includes two symmetrically arranged circular rollers 3 and 4, with a gap between them for cotton slivers to pass through. Both circular rollers 3 and 4 are rotatably connected to a supporting horizontal plate 5. The support 1 also includes a drive assembly for rotating the circular rollers 3 and 4. The drive assembly includes gear 6 and gear 7, which are respectively fixed to the bottom surfaces of roller 3 and roller 4. Gear 6 and gear 7 in each wire unit are externally meshed. Gear 6 in the wire unit near bracket 1 is coaxially and fixedly connected to the output shaft of drive motor 8. A drive shaft 9 is rotatably connected to the center of each gear 7. A spline 10 is provided on the circumferential side of each drive shaft 9 and is slidably connected to the outside of the drive shaft 9 along the axis. A keyway 1 is recessed in the center of each gear 7. The spline 10 can engage with the keyway 1. Each drive shaft 9 is fitted with a ring 12 that slides around and is fixed to spline 10. The bottom surface of the ring 12 has a recessed annular groove, within which a drive plate 13 is engaged. The drive plate 13 is connected to the piston rod end of the cylinder 14. Each drive shaft 9 in each gear 2 has a pulley 15 fixed to it, located between gear 2 and the ring 12. A keyway 2 is located at the center of the pulley 15, through which spline 10 passes and engages with keyway 2. The drive shaft 9 in adjacent wire units... The pulley 15 on the drive shaft 9 is connected by a belt. Two pulleys 15 are fixed in parallel on the drive shaft 9 in the middle wire unit. The number of wire units activated in each wire mechanism is different. The wire units near the bracket 1 will be activated in each wire mechanism. By starting the drive motor 8, the drive gear 6 will rotate, and the roller 3 will rotate. Since the gear 7 meshes with the gear 6, the roller 4 rotates in the opposite direction to the roller 3, and the cotton sliver is smoothly passed through the gap between the roller 3 and the roller 4.When multiple cotton strips need to be fed through, the spline 10 on the drive shaft 9 of the corresponding guide unit passes through the spline 2 on the pulley 15 and engages with the spline 10. Since the gear 7 near the bracket 1 is meshing with the gear 6, the drive shaft 9 rotates after the key engagement. This drives the pulley 15 on the drive shaft 9. Furthermore, the drive shaft 9 in the gear 7 of the adjacent guide unit, driven by the belt, is also driven to rotate. Similarly, the spline 10 on the adjacent drive shaft 9 engages with keyways 1 and 2, causing the corresponding gear 7 to rotate. The gears 6 and 7 in this guide unit rotate in opposite directions, allowing the rollers 3 and 4 in this guide unit to feed the cotton strips. This process continues, allowing the guide unit to be activated based on the number of cotton strips to be fed. The appropriate guide unit can be activated adaptably to the working conditions and the required number of cotton strips to be fed. This simple and flexible operation effectively avoids the guide unit from idling and wasting resources.

[0027] like Figure 1-3 As shown, both the first roller 3 and the second roller 4 are detachably covered with cleaning cloths, which can be used to clean the cotton slivers, improve the quality of the sliver drawing, and the detachable cleaning cloths can be replaced at any time, improving practicality.

[0028] like Figure 1-3 As shown, a feeding guide rod 16 is provided on the other side of the guide roller 2 opposite to the supporting horizontal plate 5. The feeding guide rod 16 is fixed on the bracket 1. A feeding guide ring 17 is slidably connected to the feeding guide rod 16. A lead screw 18 parallel to the feeding guide rod 16 is provided on the bracket 1. A slider 19 is slidably connected to the lead screw 18 and the feeding guide rod 16. The feeding guide ring 17 is connected to the slider 19 through a short rod. The lead screw 18 is coaxially fixedly connected to the motor 20. By setting the feeding guide rod 16 and the feeding guide ring 17, the position of the cotton strip can be adjusted according to the entry position of different positions. By starting the lead screw 18, the feeding guide ring 17 slides on the feeding guide rod 16 and aligns with the gap between the circular roller 3 and the circular roller 4 in the corresponding wire unit, thereby improving the neatness of the wire feeding.

[0029] like Figure 1-3 As shown, a cover 11 is fixed to the bottom surface of the support plate 5, and the drive shaft 9, cylinder 14 and belt are all located inside the cover 11.

[0030] The working principle of a guide strip device for a drawing frame:

[0031] The number of activated wire units in each wire guiding mechanism varies. Wire units closer to support 1 are activated in each mechanism. By activating drive motor 8, drive gear 6 rotates, causing roller 3 to rotate. Since gear 7 meshes externally with gear 6, roller 4 rotates in the opposite direction to roller 3, smoothly guiding the cotton sliver through the gap between roller 3 and roller 4. When multiple cotton slivers need to be passed through, the spline 10 on the drive shaft 9 of the corresponding wire guiding unit passes through spline 2 on pulley 15 and engages with spline 10. At this time, since gear 7, closer to support 1, is meshing externally with gear 6, the drive shaft 9 at that location rotates after the key engagement. The pulley 15 on the drive shaft 9 is driven to rotate. Furthermore, the drive shaft 9 in the gear 2 7 of the adjacent guide unit, which is driven by the belt drive, is also driven to rotate. Similarly, after the spline 10 on the adjacent drive shaft 9 is engaged with the keyway 1 and keyway 2, the corresponding gear 2 7 is driven to rotate. Then, the gear 1 6 and gear 2 7 in the guide unit rotate in opposite directions. Thus, the roller 1 3 and roller 2 4 in the guide unit can feed cotton strips. By analogy, the guide unit that needs to be started can be selected according to the cotton strips to be fed. The corresponding guide unit can be started adaptably according to the working conditions of the required number of cotton strips to be fed. The operation is simple and flexible, and it also effectively avoids the guide unit from running idle, which would cause waste.

Claims

1. A guide roller device for a drawing frame, comprising a support (1), wherein a plurality of guide rollers (2) rotatably connected to the support (1) are spaced apart on the support (1), characterized in that: Each of the guide rollers (2) is provided with a wire guiding mechanism on its side. The wire guiding mechanism includes several pairs of wire guiding units spaced apart. Each wire guiding unit includes two symmetrically arranged circular rollers one (3) and two circular rollers two (4). The gap between the circular rollers one (3) and two circular rollers two (4) allows cotton slivers to pass through. The circular rollers one (3) and two circular rollers two (4) are rotatably connected to the support plate (5). The bracket (1) is also provided with a drive assembly for driving the circular rollers one (3) and two circular rollers two (4) to rotate.

2. The guide strip device for a drawing frame according to claim 1, characterized in that: The drive assembly includes gear 1 (6) and gear 2 (7) fixed to the bottom surfaces of roller 1 (3) and roller 2 (4) respectively. Gear 1 (6) and gear 2 (7) in each wire unit are externally meshed. Gear 1 (6) in the wire unit near the bracket (1) is coaxially fixedly connected to the output shaft of drive motor 1 (8). A drive shaft (9) is rotatably connected to the center of each gear 2 (7). A spline 1 (10) is provided on the circumferential side of each drive shaft (9) and is slidably connected to the outside of the drive shaft (9) along the axis. A keyway 1 is recessed in the center of each gear 2 (7). The spline 1 (10) can be keyed with the keyway 1.

3. A guide strip device for a drawing frame according to claim 2, characterized in that: Each drive shaft (9) is fitted with a ring (12) that is fixed to a spline (10). The bottom surface of the ring (12) is recessed with an annular groove. A drive plate (13) is engaged in the groove. The drive plate (13) is connected to the piston rod end of the cylinder (14).

4. A guide strip device for a drawing frame according to claim 3, characterized in that: Each gear 2 (7) has a pulley (15) fixed on its drive shaft (9). The pulley (15) is located between gear 2 (7) and ring (12). A keyway 2 is provided at the center of the pulley (15). The spline 1 (10) can pass through the keyway 1 and engage with the keyway 2. The pulleys (15) on the drive shaft (9) of the adjacent wire unit are connected by a belt. Two pulleys (15) are fixed in parallel on the drive shaft (9) of the middle wire unit.

5. A guide strip device for a drawing frame according to claim 4, characterized in that: Both the first (3) and the second (4) of the circular rollers are detachably covered with cleaning cloths.

6. A guide strip device for a drawing frame according to claim 5, characterized in that: A feeding guide rod (16) is provided on the other side of the guide roller (2) opposite to the supporting horizontal plate (5). The feeding guide rod (16) is fixed on the bracket (1), and a feeding guide ring (17) is slidably connected on the feeding guide rod (16).

7. A guide strip device for a drawing frame according to claim 6, characterized in that: The bracket (1) is provided with a lead screw (18) parallel to the feed guide rod (16), and a slider (19) is slidably connected to the lead screw (18) and the feed guide rod (16).

8. A guide device for a drawing frame according to claim 7, characterized in that: The feed guide ring (17) is connected to the slider (19) via a short rod.

9. A guide strip device for a drawing frame according to claim 8, characterized in that: The lead screw (18) is coaxially fixedly connected to the second motor (20).

10. A guide strip device for a drawing frame according to claim 9, characterized in that: The bottom surface of the support plate (5) is fixed with a cover (11), and the drive shaft (9), cylinder (14) and belt are all located inside the cover (11).

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