Rotary telescopic yarn shifting mechanism for glass fiber drawing machine

Abstract

The utility model belongs to the technical field of wire drawing machines, and discloses a rotary telescopic yarn shifting mechanism for a glass fiber wire drawing machine, which comprises a supporting arm arranged on the wire drawing machine, a supporting plate is arranged at one end of the supporting arm far away from the wire drawing machine, a plurality of sliding frames are horizontally arranged on the supporting plate at intervals, and each sliding frame comprises a sliding plate; rotating shafts penetrating through the surface of the mounting plate are rotationally arranged at the upper end and the lower end of the mounting plate, pulleys are arranged at the ends, away from the supporting plate, of the rotating shafts, belt wheels are arranged at the ends, close to the supporting plate, of the rotating shafts, and the two belt wheels are connected through a synchronous belt; a worm wheel is arranged at the end, close to the supporting plate, of the rotating shaft at the upper end of the mounting plate, and a first driving assembly for driving the worm wheel to rotate is arranged on the supporting plate. During wire drawing, the pulley actively rotates, so that the tension of yarns in the wire drawing process is reduced, the abrasion of the pulley is relieved, the service life of the pulley is prolonged, and the production cost and the labor intensity of workers are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of glass fiber drawing machines, in particular to a rotary telescopic yarn drawing mechanism for a glass fiber drawing machine. Background Art

[0002] Glass fiber drawing machine is a mechanical equipment that draws molten glass into fiber filaments at high speed and winds them into fiber rolls according to a certain pattern.

[0003] At present, the yarn drawing mechanism used in glass fiber drawing on the market is mostly in the form of a fixed pulley. During drawing, the pulley can only passively rotate under the tension of the yarn. After a period of use, one side of the pulley will be severely worn, resulting in broken, linty and scattered glass fibers. Then the pulley needs to be replaced, and the replacement requires downtime, which reduces the qualified rate of finished products and production efficiency, and also increases the workload of the staff. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a rotary telescopic yarn drawing mechanism for a glass fiber drawing machine.

[0005] The above-mentioned technical objectives of the present utility model are achieved through the following technical solutions: a rotary telescopic yarn drawing mechanism for a glass fiber drawing machine, comprising a support arm arranged on the drawing machine, the support arm being provided with a support plate at one end away from the drawing machine, a plurality of sliding frames being arranged horizontally at intervals on the support plate, the sliding frame comprising a sliding plate slidably arranged on the support plate, the sliding plate being provided with a connecting plate protruding in a direction away from the support plate, the connecting plate being provided with a vertically arranged mounting plate at one end away from the fixed plate, the upper and lower ends of the mounting plate are both rotatably provided with a rotating shaft passing through the mounting plate surface, the rotating shaft being provided with a pulley at one end away from the support plate, the rotating shaft being provided with a pulley at one end adjacent to the support plate, the two pulleys being connected by a synchronous belt, and a worm gear is also provided at the end of the rotating shaft located at the upper end of the mounting plate adjacent to the support plate, and a first drive component for driving the worm gear to rotate is provided on the support plate.

[0006] By adopting the above technical solution, a sliding frame, a rotating shaft, a pulley, a pulley, a synchronous belt, a worm gear and a first drive component are provided. The worm gear is driven to rotate by the first drive component, thereby driving the rotating shaft and the pulley to rotate via the rotating wheel and the synchronous belt. The pulley is actively rotated during wire drawing, which reduces the friction between the yarn and the pulley on the one hand and makes the wear on the entire rim of the pulley uniform on the other hand, thereby slowing down the wear of the pulley, extending the service life of the pulley, and further extending the pulley replacement cycle, thereby reducing production costs and the labor intensity of workers.

[0007] Furthermore, the support plate is provided with a strip hole along its length direction, and two upper and lower guide rails arranged along the length direction of the support plate are spaced apart on the plate surface of the support plate away from the fixed frame, and a number of sliders are slidably provided on the guide rails, and the two corresponding sliders on the upper and lower guide rails are connected through a slider, and a cross plate is provided on the slider protruding toward the fixed frame, and the cross plate passes through the strip hole and is connected to the corresponding fixed plate, and a second driving component for driving the slider to slide is provided on the support plate.

[0008] By adopting the above technical solution, strip holes, guide rails, sliders, slide plates, transverse plates and a second driving assembly are provided. The second driving assembly can drive the fixing frame to slide on the supporting plate, thereby adjusting the position of the pulley.

[0009] Furthermore, a first fixing seat is provided on the plate surface of the outermost skateboard away from the slider, and a first fixing seat and a second fixing seat are provided on the plate surface of the remaining skateboards away from the slider. The first fixing seat is flush with and corresponding to the second fixing seat on the inner skateboard. A pull rod is provided on the first fixing seat cantilevered inward, and a through hole for the pull rod to pass through is provided on the second fixing seat. One end of the pull rod away from the first fixing seat passes through the through hole on the second fixing seat on the inner skateboard and a nut with an outer diameter larger than the through hole diameter is provided at the end.

[0010] By adopting the above technical solution, a first fixed seat, a second fixed seat, a pull rod, a through hole, and a nut are set. By cooperating with the through holes on adjacent slides, several slides can be connected together, so that under the action of the second drive component, several slide rods can slide successively.

[0011] Furthermore, the second driving assembly includes a driving cylinder fixedly arranged on the support plate, an L-shaped plate is provided on the outermost slide plate, and the end of the piston rod of the driving cylinder is connected to the L-shaped plate.

[0012] By adopting the above technical solution, a driving cylinder and an L-shaped plate are provided, so that the sliding plate is driven to slide by the driving cylinder, which has a simple structure and is easy to operate.

[0013] Furthermore, the first driving assembly includes a driving rod rotatably arranged on the support plate and a driving motor driving the driving rod to rotate. The driving motor and the driving rod are connected through a reducer and a coupling. A plurality of worms are provided on the sliding sleeve of the driving rod, and the plurality of worms cooperate with the worm wheels on the corresponding rotating shafts.

[0014] By adopting the above technical solution, a driving rod, a driving motor and a worm are provided, the driving motor drives the driving rod and the worm to rotate, and the worm cooperates with the worm wheel to drive the rotating shaft and the pulley to rotate.

[0015] Furthermore, a connecting frame is provided on the top of the skateboard protruding toward the fixed frame, and the connecting frame extends to the corresponding two ends of the worm and is provided with a sliding hole. The diameter of the sliding hole is larger than the diameter of the drive rod and smaller than the diameter of the worm, and the connecting frame is sleeved on the drive rod through the sliding hole.

[0016] By adopting the above technical solution, a connecting frame and a sliding hole are provided, so that the worm can slide synchronously with the slide plate on the driving rod.

[0017] Furthermore, a strip groove is provided on the driving rod along its length direction, and a convex strip is provided on the inner wall of the worm, and the convex strip is placed in the strip groove to form a sliding fit.

[0018] By adopting the above technical solution and providing the strip grooves and convex strips, the worm can slide on the driving rod but cannot rotate relatively.

[0019] Furthermore, a plurality of fixing frames are provided on the support plate, and two upper and lower fixing wheels are provided on the fixing frames.

[0020] By adopting the above technical solution, a fixed frame and a fixed wheel are provided, which facilitates use when the number of sliding frames and pulleys is insufficient.

[0021] To sum up, the utility model has the following beneficial effects: in this application, a sliding frame, a rotating shaft, a pulley, a pulley, a synchronous belt, a worm gear and a first drive component are provided, and the worm gear is driven to rotate by the first drive component, thereby driving the rotating shaft and the pulley to rotate through the rotating wheel and the synchronous belt, so that the pulley is actively rotated during wire drawing, on the one hand reducing the friction between the yarn and the pulley, and on the other hand making the wear on the entire rim of the pulley uniform, thereby slowing down the wear of the pulley, extending the service life of the pulley, and further extending the pulley replacement cycle, reducing production costs and the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0023] Figure 2 yes Figure 1 A magnified schematic diagram of part A;

[0024] Figure 3 yes Figure 1 Schematic side view of

[0025] Figure 4 This is a partial structural diagram of the back side of the support plate of an embodiment of the present utility model;

[0026] Figure 5 yes Figure 4 An enlarged schematic diagram of part B;

[0027] Figure 6 It is a structural schematic diagram of the sliding frame, pulley, slide plate and cross plate of an embodiment of the utility model.

[0028] In the figure: 10, support arm; 20, support plate; 21, strip hole; 22, guide rail; 23, slider; 24, slide plate; 25, cross plate; 26, first fixed seat; 27, second fixed seat; 28, pull rod; 281, nut; 29, through hole; 30, sliding frame; 31, sliding plate; 32, connecting plate; 33, mounting plate; 34, rotating shaft; 35, pulley; 36, pulley; 37, synchronous belt; 38, worm gear; 40, first drive component; 41, drive rod; 411, strip groove; 42, drive motor; 43, reducer; 44, coupling; 45, worm; 46, connecting frame; 47, sliding hole; 50, second drive component; 51, drive cylinder; 52, L-shaped plate; 60, fixed frame; 61, fixed wheel. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; it is obvious that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0030] like Figure 1-6 As shown, the embodiment of the present application discloses a rotary telescopic yarn-pulling mechanism for a glass fiber drawing machine, comprising a support arm 10, a support plate 20, a sliding frame 30, a pulley 35, a first drive assembly 40, a second drive assembly 50, etc. The support arm 10 is disposed on the drawing machine to support the entire rotary telescopic yarn-pulling mechanism. The support plate 20 is disposed at the end of the support arm 10 away from the drawing machine. A plurality of sliding frames 30 are provided and arranged horizontally at intervals on the support plate 20. The pulley 35 is disposed on the sliding frame 30.

[0031] Specifically, the sliding frame 30 includes a sliding plate 31 slidably mounted on the support plate 20. A connecting plate 32 is provided on the sliding plate 31, extending away from the support plate 20. A vertically arranged mounting plate 33 is provided at the end of the connecting plate 32 away from the fixed plate. Rotating shafts 34 are rotatably mounted at both the upper and lower ends of the mounting plate 33, extending through the surface of the mounting plate 33. A pulley 35 is provided at the end of the rotating shaft 34 away from the support plate 20, and a pulley 36 is provided at the end of the rotating shaft 34 adjacent to the support plate 20. The two pulleys 36 are connected by a synchronous belt 37, thereby connecting the upper and lower rotating shafts 34 together, allowing the two rotating shafts 34 to rotate synchronously, thereby causing the two pulleys 35 to rotate synchronously.

[0032] Two guide rails 22 are spaced apart on the support plate 20, running along the length of the support plate 20, facing away from the fixed frame 60. Sliders 23 are slidably mounted on the guide rails 22. The number of sliders 23 on each guide rail 22 matches the number of sliding frames 30 and corresponds in function to each other. The two corresponding slides 23 on the upper and lower guide rails 22 are connected by a slide plate 24. A cross plate 25 is provided on the slide plate 24 protruding toward the fixed frame 60. A strip-shaped hole 21 is formed along the length of the support plate 20, located between the upper and lower guide rails 22. The cross plate 25 passes through the strip hole 21 and connects to the corresponding fixed plate on the sliding frame 30. This allows the slide plate 24 to slide along the guide rail 22, driving the sliding frame 30 as well.

[0033] A first fixing seat 26 is provided on the surface of the outermost slide 24, away from the slider 23. The remaining slides 24 are also provided with first and second fixing seats 26 and 27 on their surfaces, away from the slider 23. The first fixing seat 26 is flush with and corresponding to the second fixing seat 27 on the inner slide 24. An inwardly cantilevered pull rod 28 is provided on the first fixing seat 26, and a through hole 29 for the pull rod 28 to pass through is provided on the second fixing seat 27. The end of the pull rod 28, away from the first fixing seat 26, passes through the through hole 29 in the second fixing seat 27 on the inner slide 24 and is provided with a nut 281 having an outer diameter larger than the diameter of the through hole 29.

[0034] The second drive assembly 50 is used to drive the slide plate 24 to slide. It includes a drive cylinder 51 fixed to the support plate 20. An L-shaped plate 52 is provided on the outermost slide plate 24. The end of the piston rod of the drive cylinder 51 is connected to the L-shaped plate 52. The drive cylinder 51 can drive the outermost slide plate 24 to slide.

[0035] When the outermost slide 24 slides inward under the action of the drive cylinder 51, the pull rod 28 on it moves inward through the through hole 29 of the second fixing seat 27 of the adjacent inner slide 24 until the outermost slide 24 contacts the inner adjacent slide 24, driving the inner adjacent slide 24 to continue moving inward, and so on, until all slides 24 are close to and move inward. The slide 24 is connected to the sliding frame 30 through the cross plate 25, so that when the slide 24 moves, it drives the sliding frame 30 to slide together.

[0036] When the sliding frame 30 and the pulley 35 thereon need to be pulled apart, the driving cylinder 51 pushes the L-shaped plate 52, driving the skateboard 24 at the outermost end to slide outward. At this time, the pull rod 28 thereon moves outward in the through hole 29 on the second fixed seat 27 of the adjacent skateboard 24 on the inner side, until the nut 281 at the end of the pull rod 28 contacts the second fixed seat 27. The pull rod 28 can no longer slide in the through hole 29, and will slide outward with the corresponding second fixed seat 27 and the skateboard 24. By analogy, all the skateboards 24 can be unfolded, thereby allowing the sliding frame 30 and the pulley 35 thereon to be unfolded.

[0037] The first drive assembly 40 includes a drive rod 41 rotatably arranged on the support plate 20 and a drive motor 42 that drives the drive rod 41 to rotate. The length direction of the drive rod 41 is consistent with the length direction of the support plate 20. The drive motor 42 is connected to the drive rod 41 through a reducer 43 and a coupling 44, thereby driving the drive rod 41 to rotate through the reducer 43 and the coupling 44.

[0038] A plurality of worms 45 are slidably mounted on the drive rod 41, the number of which matches the number of the sliding frame 30. A worm gear 38 is also mounted on the end of the rotating shaft 34 at the upper end of the mounting plate 33, near the support plate 20, and engages with a corresponding worm 45. Strip grooves 411 are defined along the length of the drive rod 41, and ridges are provided on the inner walls of the worms 45, which slide into the strip grooves 411 to form a sliding fit. This allows the worms 45 to slide on the drive rod 41 but not rotate. Rotating the drive rod 41 thus drives the worms 45.

[0039] A connecting bracket 46 is provided on the top of the slide 24, protruding toward the fixed frame 60. The connecting bracket 46 extends to the corresponding ends of the worm 45 and is provided with sliding holes 47. The connecting bracket 46 is mounted on the drive rod 41 through the sliding holes 47. The diameter of the sliding hole 47 is larger than the diameter of the drive rod 41 and smaller than the diameter of the worm 45, thereby confining the worm 45 to the inside of the connecting bracket 46. In this way, when the slide 24 slides with the sliding bracket 30, the connecting bracket 46 will slide synchronously with the worm 45 on the drive rod 41, thereby ensuring that the worm 45 and the worm wheel 38 are always in a mating state.

[0040] Furthermore, the support plate 20 is provided with a plurality of fixed frames 60, each of which is provided with two upper and lower fixed wheels 61. The fixed wheels 61 on the fixed frames 60 serve as spare wheels, allowing yarn drawing when the yarn quantity is excessive and the pulleys 35 on the sliding frame 30 are insufficient. Because the fixed wheels 61 are used less frequently, they wear out relatively slowly, thus not affecting the overall drawing process.

[0041] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A rotary telescopic yarn drawing mechanism for a glass fiber drawing machine, comprising a support arm (10) arranged on the drawing machine, characterized in that: The support arm (10) is provided with a support plate (20) at one end away from the wire drawing machine, and a plurality of sliding frames (30) are arranged horizontally at intervals on the support plate (20), and the sliding frame (30) includes a sliding plate (31) slidingly arranged on the support plate (20), and a connecting plate (32) is provided on the sliding plate (31) protruding in a direction away from the support plate (20), and a vertically arranged mounting plate (33) is provided at one end of the connecting plate (32) away from the fixed plate, and the upper and lower ends of the mounting plate (33) are rotatably provided with a through-hole. A rotating shaft (34) passes through the surface of the mounting plate (33), a pulley (35) is provided at one end of the rotating shaft (34) away from the support plate (20), a pulley (36) is provided at one end of the rotating shaft (34) adjacent to the support plate (20), and the two pulleys (36) are connected by a synchronous belt (37). A worm gear (38) is also provided at the end of the rotating shaft (34) located at the upper end of the mounting plate (33) adjacent to the support plate (20), and a first driving component (40) is provided on the support plate (20) for driving the worm gear (38) to rotate.

2. The rotary and telescopic yarn-pulling mechanism for a glass fiber drawing machine according to claim 1, characterized in that: The support plate (20) is provided with a strip hole (21) along its length direction. Two upper and lower guide rails (22) arranged along the length direction of the support plate (20) are spaced apart on the plate surface of the support plate (20) on the side away from the fixed frame (60). A plurality of sliders (23) are slidably provided on the guide rails (22). The two corresponding sliders (23) on the upper and lower guide rails (22) are connected by a slide plate (24). A transverse plate (25) is provided on the slide plate (24) protruding toward the fixed frame (60). The transverse plate (25) passes through the strip hole (21) and is connected to the corresponding fixed plate. A second driving component (50) for driving the slide plate (24) to slide is provided on the support plate (20).

3. The rotary and telescopic yarn-pulling mechanism for a glass fiber drawing machine according to claim 2, characterized in that: A first fixing seat (26) is provided on the surface of the outermost slide plate (24) away from the slider (23), and a first fixing seat (26) and a second fixing seat (27) are provided on the surface of the remaining slide plates (24) away from the slider (23). The first fixing seat (26) is flush with and corresponding to the second fixing seat (27) on the inner slide plate (24). The first fixing seat (26) is provided with a pull rod (28) cantilevered inward, and the second fixing seat (27) is provided with a through hole (29) for the pull rod (28) to pass through. The end of the pull rod (28) away from the first fixing seat (26) passes through the through hole (29) on the second fixing seat (27) on the inner slide plate (24) and is provided with a nut (281) with an outer diameter larger than the hole diameter of the through hole (29) at the end.

4. The rotary telescopic yarn-pulling mechanism for a glass fiber drawing machine according to claim 3, characterized in that: The second driving assembly (50) comprises a driving cylinder (51) fixedly arranged on the support plate (20), an L-shaped plate (52) is arranged on the outermost slide plate (24), and the end of the piston rod of the driving cylinder (51) is connected to the L-shaped plate (52).

5. The rotary and telescopic yarn-pulling mechanism for a glass fiber drawing machine according to claim 4, characterized in that: The first driving assembly (40) includes a driving rod (41) rotatably arranged on the support plate (20) and a driving motor (42) driving the driving rod (41) to rotate. The driving motor (42) and the driving rod (41) are connected via a reducer (43) and a coupling (44). A plurality of worms (45) are slidingly sleeved on the driving rod (41). The plurality of worms (45) cooperate with worm wheels (38) on corresponding rotating shafts (34).

6. The rotary and telescopic yarn-pulling mechanism for a glass fiber drawing machine according to claim 5, characterized in that: A connecting frame (46) is provided on the top of the slide plate (24) protruding in the direction of the fixing frame (60). The connecting frame (46) extends to the two ends of the corresponding worm (45) and is provided with a sliding hole (47). The diameter of the sliding hole (47) is larger than the diameter of the driving rod (41) and smaller than the diameter of the worm (45). The connecting frame (46) is sleeved on the driving rod (41) through the sliding hole (47).

7. The rotary and telescopic yarn-pulling mechanism for a glass fiber drawing machine according to claim 6, characterized in that: The driving rod (41) is provided with a strip groove (411) along its length direction, and the inner wall of the worm (45) is provided with a convex strip, which is placed in the strip groove (411) to form a sliding fit.

8. The rotary and telescopic yarn-pulling mechanism for a glass fiber drawing machine according to claim 1, characterized in that: A plurality of fixing frames (60) are further provided on the support plate (20), and two upper and lower fixing wheels (61) are provided on the fixing frames (60).

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