Adjustable fiber spreading device

Abstract

The invention relates to the technical field of fiber spreading, in particular to an adjustable fiber spreading device which comprises a rack and a shaking roller and further comprises an up-down shaking structure arranged on the rack and used for driving the shaking roller to shake up and down so as to enable fiber yarn to generate periodic tension fluctuation; the fiber yarn twisting and unfolding assembly comprises at least two twisting and unfolding units arranged on the rack, each twisting and unfolding unit comprises a first side plate and a second side plate, and at least one translation frame is arranged between the first side plate and the second side plate; the height of the twisting roller and the height of the heating pipe in the vertical direction can be changed, then the contact arc length of fiber yarn and the twisting roller is changed, the friction force is adjusted, the optimal action area of the yarn impacted by hot air flow can be changed by adjusting the height of the heating pipe, and heat exchange is more uniform and efficient.

Description

Technical Field

[0001] This invention relates to the field of fiber spreading technology, and more particularly to an adjustable fiber spreading device. Background Technology

[0002] In existing technologies, carbon fiber filaments are shipped in bundle form, with each bundle containing thousands of single filaments with a diameter of approximately 5-10 micrometers. This tightly bundled structure presents significant problems when used directly, such as difficulty in impregnation, buckling and wrinkling, and uneven mechanical properties. By spreading the fibers, a thin layer composed of continuous, parallel, single-layer, and uniformly distributed carbon fibers can be obtained, with a thickness as low as 0.05 mm or even thinner.

[0003] However, it's worth considering that in existing fiber spreading devices, the heights of the heating tubes and rollers are fixed. This makes it impossible to match the heating effect to different fibers. Fibers with different sizing contents have different optimal softening temperature windows. A fixed-height heating tube cannot be precisely matched by changing the heat flux density, leading to insufficient heating or overheating damage. When the production line speed changes or the ambient temperature fluctuates, the fixed heating distance cannot respond quickly enough to maintain a constant temperature for the exit yarn, causing quality fluctuations within the same batch. Furthermore, the contact arc length and pressure between the fiber yarn and the roller are not adjustable, resulting in narrow adaptability. A fixed roller height means the wrap angle (the central angle corresponding to the arc segment of the yarn contacting the roller) is also fixed. For coarse or dense fiber bundles, a larger wrap angle may be needed to increase the contact time and friction for full spreading. For fine or fragile fibers, an excessively large wrap angle can lead to excessive pressure, fiber wear, or breakage. A fixed design cannot accommodate both.

[0004] Therefore, in order to solve the above problems, a more suitable facility that meets the needs of users is needed. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide an adjustable fiber spreading device to solve the problems in the above-mentioned fiber spreading devices where the height of the heating tube and the rubbing roller are fixed, the heat effect cannot be matched with different fibers, and the fixed height of the rubbing roller means that the wrap angle is fixed.

[0006] To achieve the above objectives, the present invention provides an adjustable fiber spreading device, comprising a frame and a vibrating roller, and further comprising: an up-and-down vibrating structure disposed on the frame for driving the vibrating roller to vibrate up and down, thereby causing periodic tension fluctuations in the fiber yarn; a fiber yarn spreading assembly comprising at least two spreading units disposed on the frame, each spreading unit comprising a first side plate and a second side plate, at least one translation frame disposed between the first side plate and the second side plate, the two ends of the translation frame being slidably connected to the first side plate and the second side plate respectively, a spreading roller being fixedly connected to the translation frame, and a reciprocating structure for driving the spreading roller to move horizontally on the second side plate to apply friction to the fiber yarn; a heating assembly comprising several lifting frames disposed on the frame, heating tubes for heating the fiber yarn being fixedly connected to the lifting frames, and adjustment mechanisms disposed on the frame for driving the lifting frames, the first side plate and the second side plate to move vertically, thereby changing the contact wrap angle between the fiber yarn and the spreading roller, and thus changing the distance between the heating tube and the fiber yarn.

[0007] Optionally, the reciprocating structure includes a drive shaft rotatably mounted on the second side plate, a plurality of first eccentric wheels are fixedly sleeved on the outside of the drive shaft, a first eccentric sleeve is rotatably sleeved on the outside of the first eccentric wheels, and the first eccentric sleeve is rotatably connected to the corresponding translation frame. A synchronization unit for driving the rotation of the plurality of drive shafts is mounted on the frame.

[0008] Optionally, the synchronization unit includes a plurality of first geared motors mounted on the frame. The number of first geared motors and second side plates is the same, and the first geared motors and corresponding second side plates are fixedly connected. The output end of the first geared motor is fixedly connected to a first synchronous pulley, and a second synchronous pulley is fixedly connected to the transmission shaft. The first synchronous pulley and the corresponding second synchronous pulley are connected by a first synchronous belt.

[0009] Optionally, the synchronization unit includes a first geared motor mounted on a frame, and the first geared motor is fixedly connected to a corresponding second side plate. A first synchronous pulley is fixedly connected to the output end of the first geared motor. A second synchronous pulley is provided above the first synchronous pulley, and the second synchronous pulley is fixedly connected to a corresponding drive shaft. The first synchronous pulley and the corresponding second synchronous pulley are connected by a first synchronous belt. A third synchronous pulley is fixedly sleeved on the outside of the drive shaft. A synchronous shaft is rotatably connected to the frame. Several fourth synchronous pulleys are fixedly sleeved on the outside of the synchronous shaft, and the fourth synchronous pulleys and the corresponding third synchronous pulleys are connected by a second synchronous belt. A tension controller for adjusting the tension of the second synchronous belt is installed on the frame.

[0010] Optionally, the tension controller includes several guide wheels rotatably mounted on the frame, the guide wheels being used to guide the second synchronous belt, the frame being provided with several movable seats, and the number of movable seats and the second synchronous belt being the same, a support shaft being rotatably connected to the movable seat, an adjusting wheel being fixedly sleeved on the outside of the support shaft, and the second synchronous belt being sleeved on the outside of the adjusting wheel, and several hydraulic telescopic rods being fixedly connected to the frame, and the telescopic ends of the hydraulic telescopic rods being fixedly connected to the corresponding movable seats.

[0011] Optionally, the adjustment mechanism includes several second geared motors fixedly mounted on the frame. The output end of the second geared motor is fixedly connected to a first connecting shaft. The bottom of the first side plate, the bottom of the second side plate, and both ends of the lifting frame are all fixedly connected to lead screws. The lead screws are threaded with threaded sleeves, and the threaded sleeves are rotatably fitted with support shells. The support shells are fixedly connected to the frame. The first side plate, the second side plate, and the lifting frame are all slidably connected to the frame. The two ends of the first connecting shaft are respectively equipped with meshing parts that are compatible with the threaded sleeves.

[0012] Optionally, the meshing component includes worms respectively fixedly installed at both ends of the first connecting shaft. The worms are located inside the support housing and are rotatably connected to the support housing. A worm wheel located inside the support housing is fixedly sleeved on the outside of the threaded sleeve, and the worm wheel meshes with the corresponding worm.

[0013] Optionally, the upper and lower shaking structure includes fixed seats respectively fixedly installed at both ends of the shaking roller. The fixed seats are equipped with guide members adapted to the frame. An adjusting connecting rod is fixedly connected to the fixed seats. A third reduction motor is provided below the shaking roller, and the third reduction motor is fixedly connected to the frame. A second connecting shaft is fixedly connected to the output end of the third reduction motor. The second connecting shaft is rotatably connected to the frame. A second eccentric wheel is fixedly sleeved on the outside of the second connecting shaft. A second eccentric sleeve is rotatably sleeved on the outside of the second eccentric wheel. The top end of the second eccentric sleeve is rotatably connected to the bottom end of the adjusting connecting rod.

[0014] Optionally, the guide includes a guide shaft slidably mounted on a fixed base, with both ends of the guide shaft fixedly connected to the frame via guide shaft seats.

[0015] The beneficial effects of this invention are as follows: The fiber yarn passes over the vibrating roller and the rubbing roller, and the heating tube is located above the fiber yarn. The vibrating roller and the rubbing roller support the fiber yarn. By adjusting the mechanism, the first side plate, the second side plate, and the lifting frame are moved vertically, thereby changing the vertical height of the rubbing roller and the heating tube, changing the arc length of the contact between the fiber yarn and the rubbing roller, and thus adjusting the friction. Furthermore, by adjusting the height of the heating tube, the optimal area of ​​hot airflow impacting the yarn can be changed, making heat exchange more uniform and efficient. The vibrating structure drives the vibrating roller to vibrate up and down. When the vibrating roller moves up and down, the yarn path will... As the yarn moves up and down, it experiences periodic tension fluctuations during its advance, which helps to loosen the fiber bundle structure and prepare for subsequent fiber spreading. Heating through heating tubes reduces the adhesion between fiber yarns, facilitating fiber separation and making the fibers easier to spread under mechanical action without breaking. This allows the fiber yarn to maintain its fiber shape after spreading and prevents shrinkage. Then, the reciprocating structure drives the roller to move horizontally back and forth. The left and right reciprocating motion applies lateral friction to the yarn, promoting fiber spreading in the width direction. The reciprocating motion also makes the fiber yarn distribution more uniform, improving the width consistency and thickness uniformity of the spread fibers. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is one of the overall structural schematic diagrams of an embodiment of the present invention; Figure 2 This is a second schematic diagram of the overall structure of an embodiment of the present invention; Figure 3 This is a schematic diagram of the up-and-down shaking structure according to an embodiment of the present invention; Figure 4 This is one of the structural schematic diagrams of the adjustment mechanism in an embodiment of the present invention; Figure 5 This is a schematic diagram of the synchronization unit in an embodiment of the present invention; Figure 6 This is a second schematic diagram of the adjustment mechanism according to an embodiment of the present invention; Figure 7 This is the third schematic diagram of the adjustment mechanism in an embodiment of the present invention; Figure 8 This is a schematic diagram of the translation frame according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the tension controller according to an embodiment of the present invention; Figure 10 This is a schematic diagram of the meshing component according to an embodiment of the present invention.

[0018] The diagram is marked as follows: 1. Frame; 2. Vibrating roller; 3. Translation frame; 4. First side plate; 5. Second side plate; 6. Lifting frame; 7. Heating tube; 8. Rubbing roller; 9. Fixed base; 10. Adjusting connecting rod; 11. First geared motor; 12. Drive shaft; 13. First eccentric wheel; 14. First eccentric sleeve; 15. Guide shaft; 16. Guide shaft seat; 17. Lead screw; 18. Support shell; 19. Threaded sleeve; 20. Second geared motor; 21. First connecting rod 21. Shaft; 22. Worm gear; 23. Worm wheel; 24. Third geared motor; 25. First synchronous pulley; 26. Second synchronous pulley; 27. First synchronous belt; 28. Third synchronous pulley; 29. ​​Synchronous shaft; 30. Fourth synchronous pulley; 31. Second synchronous belt; 32. Guide wheel; 33. Movable seat; 34. Support shaft; 35. Adjusting wheel; 36. Hydraulic telescopic rod; 37. Second connecting shaft; 38. Second eccentric wheel; 39. Second eccentric sleeve. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments.

[0020] Example 1, by Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6The present invention includes a frame 1 and a vibrating roller 2, and further includes: an up-and-down vibrating structure disposed on the frame 1 for driving the vibrating roller 2 to vibrate up and down, so as to generate periodic tension fluctuations in the fiber yarn; and a fiber yarn spreading assembly including at least two spreading units disposed on the frame 1, each spreading unit including a first side plate 4 and a second side plate 5, at least one translation frame 3 being provided between the first side plate 4 and the second side plate 5, the two ends of the translation frame 3 being slidably connected to the first side plate 4 and the second side plate 5 respectively, a spreading roller 8 being fixedly connected to the translation frame 3, and a useful [device / object] being mounted on the second side plate 5. A reciprocating structure that drives the rubbing roller 8 to move horizontally applies friction to the fiber yarn; a heating assembly includes several lifting frames 6 mounted on the frame 1, with heating tubes 7 fixedly connected to the lifting frames 6 for heating the fiber yarn; the frame 1 is equipped with adjustment mechanisms for driving the lifting frames 6, the first side plate 4, and the second side plate 5 to move vertically, thereby changing the contact wrap angle between the fiber yarn and the rubbing roller 8, and thus changing the distance between the heating tubes 7 and the fiber yarn; the fiber yarn passes over the vibrating roller 2 and the rubbing roller 8, and the heating tubes 7 are located on the upper part of the fiber yarn. The structure supports the fiber yarn through the vibrating roller 2 and the rubbing roller 8. An adjustment mechanism drives the first side plate 4, the second side plate 5, and the lifting frame 6 to move vertically, thereby changing the vertical height of the rubbing roller 8 and the heating tube 7, altering the arc length of the contact between the fiber yarn and the rubbing roller 8, and thus adjusting the friction. Furthermore, adjusting the height of the heating tube 7 changes the optimal area of ​​hot airflow impacting the yarn, making heat exchange more uniform and efficient. The vibrating roller 2 is driven to vibrate up and down through the up-and-down vibration structure. As the vibrating roller 2 moves up and down, the yarn path moves accordingly, allowing the yarn to move forward... The continuous periodic tension fluctuations during the process help loosen the fiber bundle structure, preparing it for subsequent fiber spreading. Heating through heating tube 7 reduces the adhesion between fiber yarns, facilitating fiber separation and making the fibers easier to spread under mechanical action without breaking. This allows the fiber yarns to maintain their fiber shape after spreading, preventing shrinkage. Then, the reciprocating structure drives the roller 8 to move horizontally back and forth. The left and right reciprocating motion can apply lateral friction force to the yarn, promoting fiber spreading in the width direction. The reciprocating motion can also make the fiber yarn distribution more uniform, improving the width consistency and thickness uniformity of the spread fibers.

[0021] Example 2, based on Example 1, is... Figure 6 , Figure 7 and Figure 8The reciprocating structure includes a drive shaft 12 rotatably mounted on the second side plate 5. Several first eccentric wheels 13 are fixedly sleeved on the outside of the drive shaft 12. A first eccentric sleeve 14 is rotatably sleeved on the outside of the first eccentric wheels 13. The first eccentric sleeve 14 is rotatably connected to the corresponding translation frame 3. A synchronization unit for driving the rotation of several drive shafts 12 is installed on the frame 1. The synchronization unit drives the several drive shafts 12 to rotate. The drive shafts 12 drive the first eccentric sleeve 14 to rotate. The first eccentric sleeve 14 drives the first eccentric wheels 13 to reciprocate horizontally. The first eccentric sleeve 14 rotates relative to the first eccentric wheels 13 and relative to the translation frame 3. The first eccentric sleeve 14 can drive the translation frame 3 and the roller 8 to reciprocate horizontally.

[0022] Example 3, based on Example 2, by Figure 7 The synchronization unit includes several first geared motors 11 mounted on the frame 1. The number of first geared motors 11 and second side plates 5 is the same, and the first geared motors 11 and the corresponding second side plates 5 are fixedly connected. The output end of the first geared motor 11 is fixedly connected to a first synchronous pulley 25, and a second synchronous pulley 26 is fixedly connected to the drive shaft 12. The first synchronous pulley 25 and the corresponding second synchronous pulley 26 are connected by a first synchronous belt 27. When the several first geared motors 11 are started, the first synchronous pulleys 25 are driven to rotate through the first geared motors 11. The first synchronous pulleys 25 can then drive the second synchronous pulleys 26 and the drive shaft 12 to rotate through the first synchronous belt 27.

[0023] Example 4, based on Example 2, by Figure 5 , Figure 6 and Figure 9The synchronization unit includes a first geared motor 11 mounted on a frame 1, and the first geared motor 11 is fixedly connected to a corresponding second side plate 5. A first synchronous pulley 25 is fixedly connected to the output end of the first geared motor 11. A second synchronous pulley 26 is located above the first synchronous pulley 25, and the second synchronous pulley 26 is fixedly connected to a corresponding drive shaft 12. The first synchronous pulley 25 and the corresponding second synchronous pulley 26 are connected by a first synchronous belt 27. A third synchronous pulley 28 is fixedly sleeved on the outside of the drive shaft 12. A synchronous shaft 29 is rotatably connected to the frame 1. Several fourth synchronous pulleys 30 are externally fixedly fitted, and the fourth synchronous pulleys 30 and corresponding third synchronous pulleys 28 are connected by a second synchronous belt 31. A tension controller for adjusting the tension of the second synchronous belt 31 is installed on the frame 1. The tension controller includes several guide wheels 32 rotatably mounted on the frame 1. The guide wheels 32 are used to guide the second synchronous belt 31. Several movable seats 33 are provided on the frame 1, and the number of movable seats 33 is the same as that of the second synchronous belt 31. A support shaft 34 is rotatably connected to the movable seat 33. An adjusting wheel 35 is externally fixedly fitted on the support shaft 34, and the second The synchronous belt 31 is sleeved on the outside of the adjusting wheel 35. Several hydraulic telescopic rods 36 are fixedly connected to the frame 1, and the telescopic ends of the hydraulic telescopic rods 36 are fixedly connected to the corresponding movable seats 33. When the adjusting mechanism drives the first side plate 4 and the second side plate 5 to move vertically, the second side plate 5 drives the transmission shaft 12 to move vertically relative to the synchronous shaft 29, and the distance between the third synchronous wheel 28 and the fourth synchronous wheel 30 changes. The hydraulic telescopic rods 36 drive the movable seats 33 and the support shaft 34 to move, and the adjusting wheel 35 controls the tension of the second synchronous belt 31 to be within a preset range. When set on the machine... When a first geared motor 11 on frame 1 drives the first synchronous pulley 25 to rotate, the first synchronous pulley 25 can drive a corresponding drive shaft 12 to rotate via the first synchronous belt 27 and the second synchronous pulley 26. The drive shaft 12 drives the third synchronous pulley 28 to rotate. The third synchronous pulley 28 drives the synchronous shaft 29 to rotate via the second synchronous belt 31. The synchronous shaft 29 can then drive the other fourth synchronous pulleys 30 to rotate synchronously. The other fourth synchronous pulleys 30 can then drive the corresponding drive shafts 12 to rotate via the second synchronous belt 31 and the third synchronous pulley 28, thus enabling several drive shafts 12 to rotate synchronously.

[0024] Example 5, based on Example 1, by Figure 4 , Figure 6 , Figure 7 and Figure 10The adjustment mechanism includes several second geared motors 20 fixedly mounted on the frame 1. The output ends of the second geared motors 20 are fixedly connected to a first connecting shaft 21. Lead screws 17 are fixedly connected to the bottom of the first side plate 4, the bottom of the second side plate 5, and both ends of the lifting frame 6. A threaded sleeve 19 is threaded onto the outer thread of the lead screw 17. A support shell 18 is rotatably fitted onto the outer surface of the threaded sleeve 19, and the support shell 18 is fixedly connected to the frame 1. The first side plate 4, the second side plate 5, and the lifting frame 6 are all slidably connected to the frame 1. Meshing parts adapted to the threaded sleeve 19 are respectively installed at both ends of the first connecting shaft 21. The meshing component includes worm gears 22 fixedly installed at both ends of the first connecting shaft 21. The worm gears 22 are located inside the support housing 18 and are rotatably connected to the support housing 18. A worm wheel 23 located inside the support housing 18 is fixedly sleeved on the outside of the threaded sleeve 19, and the worm wheel 23 meshes with the corresponding worm gear 22. The first connecting shaft 21 is driven to rotate by the second reduction motor 20. The first connecting shaft 21 drives the worm wheel 23 and the threaded sleeve 19 to rotate through the worm gears 22. The threaded sleeve 19 can then drive the lead screw 17 and the corresponding first side plate 4, second side plate 5, or lifting frame 6 to move vertically.

[0025] Example 6, based on Example 1, by Figure 3 The vibrating structure includes fixed seats 9 at both ends of the vibrating roller 2, guide members adapted to the frame 1 are installed on the fixed seats 9, and adjusting connecting rods 10 are fixedly connected to the fixed seats 9. A third reduction motor 24 is provided below the vibrating roller 2, and the third reduction motor 24 is fixedly connected to the frame 1. A second connecting shaft 37 is fixedly connected to the output end of the third reduction motor 24. The second connecting shaft 37 is rotatably connected to the frame 1. A second eccentric wheel 38 is fixedly sleeved on the outside of the second connecting shaft 37, and a second eccentric sleeve 39 is rotatably sleeved on the outside of the second eccentric wheel 38. The top end of the second eccentric sleeve 39 and... The bottom end of the adjusting connecting rod 10 is rotatably connected. The guide includes a guide shaft 15 slidably mounted on the fixed seat 9. The two ends of the guide shaft 15 are fixedly connected to the frame 1 through the guide shaft seat 16. The second connecting shaft 37 is driven to rotate by the third reduction motor 24. The second connecting shaft 37 drives the second eccentric wheel 38 to rotate. The second eccentric wheel 38 drives the second eccentric sleeve 39 to move back and forth in the vertical direction. The second eccentric sleeve 39 rotates relative to the second eccentric wheel 38. The second eccentric sleeve 39 drives the adjusting connecting rod 10 and the fixed seat 9 to slide relative to the guide shaft 15 and the guide shaft seat 16. The fixed seat 9 can then drive the shaking roller 2 to shake back and forth in the vertical direction.

[0026] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.

Claims

1. An adjustable fiber spreading device, comprising a frame (1) and a vibrating roller (2), characterized in that, Also includes: The up-and-down shaking structure is set on the frame (1) to drive the shaking roller (2) to shake up and down, so that the fiber yarn generates periodic tension fluctuations; The fiber yarn spreading assembly includes at least two spreading units set on the frame (1). Each spreading unit includes a first side plate (4) and a second side plate (5). At least one translation frame (3) is provided between the first side plate (4) and the second side plate (5). The two ends of the translation frame (3) are slidably connected to the first side plate (4) and the second side plate (5) respectively. A rolling roller (8) is fixedly connected on the translation frame (3). A reciprocating structure for driving the rolling roller (8) to move horizontally is installed on the second side plate (5) to apply friction to the fiber yarn. The heating assembly includes several lifting frames (6) set on the frame (1). A heating tube (7) for heating the fiber yarn is fixedly connected on the lifting frame (6). An adjustment mechanism is installed on the frame (1) for driving the lifting frame (6), the first side plate (4) and the second side plate (5) to move vertically, thereby changing the contact wrap angle between the fiber yarn and the rolling roller (8) to change the distance between the heating tube (7) and the fiber yarn.

2. The adjustable fiber spreading device according to claim 1, characterized in that, The reciprocating structure includes a drive shaft (12) rotatably mounted on the second side plate (5). A number of first eccentric wheels (13) are fixedly sleeved on the outside of the drive shaft (12). A first eccentric sleeve (14) is rotatably sleeved on the outside of the first eccentric wheel (13). The first eccentric sleeve (14) and the corresponding translation frame (3) are rotatably connected. A synchronization unit for driving the rotation of a number of drive shafts (12) is installed on the frame (1).

3. The adjustable fiber spreading device according to claim 2, characterized in that, The synchronization unit includes several first geared motors (11) mounted on the frame (1). The number of first geared motors (11) and second side plates (5) is the same, and the first geared motors (11) and the corresponding second side plates (5) are fixedly connected. The output end of the first geared motors (11) is fixedly connected to a first synchronous pulley (25), and a second synchronous pulley (26) is fixedly connected to the transmission shaft (12). The first synchronous pulley (25) and the corresponding second synchronous pulley (26) are connected by a first synchronous belt (27).

4. The adjustable fiber spreading device according to claim 2, characterized in that, The synchronization unit includes a first geared motor (11) mounted on a frame (1), and the first geared motor (11) is fixedly connected to a corresponding second side plate (5). The output end of the first geared motor (11) is fixedly connected to a first synchronous pulley (25). A second synchronous pulley (26) is provided above the first synchronous pulley (25), and the second synchronous pulley (26) is fixedly connected to a corresponding drive shaft (12). The first synchronous pulley (25) and the corresponding second synchronous pulley (26) are connected by a first synchronous belt (27). A third synchronous pulley (28) is fixedly sleeved on the outside of the drive shaft (12). A synchronous shaft (29) is rotatably connected on the frame (1). Several fourth synchronous pulleys (30) are fixedly sleeved on the outside of the synchronous shaft (29), and the fourth synchronous pulleys (30) and the corresponding third synchronous pulleys (28) are connected by a second synchronous belt (31). A tension controller for adjusting the tension of the second synchronous belt (31) is installed on the frame (1).

5. The adjustable fiber spreading device according to claim 4, characterized in that, The tension controller includes several guide wheels (32) rotatably mounted on the frame (1). The guide wheels (32) are used to guide the second synchronous belt (31). The frame (1) is provided with several movable seats (33), and the number of movable seats (33) is the same as that of the second synchronous belt (31). A support shaft (34) is rotatably connected to the movable seat (33). An adjusting wheel (35) is fixedly sleeved on the outside of the support shaft (34), and the second synchronous belt (31) is sleeved on the outside of the adjusting wheel (35). Several hydraulic telescopic rods (36) are fixedly connected to the frame (1), and the telescopic ends of the hydraulic telescopic rods (36) are fixedly connected to the corresponding movable seats (33).

6. The adjustable fiber spreading device according to claim 1, characterized in that, The adjustment mechanism includes several second geared motors (20) fixedly installed on the frame (1). The output end of the second geared motor (20) is fixedly connected to a first connecting shaft (21). The bottom of the first side plate (4), the bottom of the second side plate (5), and both ends of the lifting frame (6) are all fixedly connected to lead screws (17). The lead screw (17) is threaded with a threaded sleeve (19). The threaded sleeve (19) is rotatably fitted with a support shell (18). The support shell (18) is fixedly connected to the frame (1). The first side plate (4), the second side plate (5), and the lifting frame (6) are all slidably connected to the frame (1). Both ends of the first connecting shaft (21) are respectively equipped with meshing parts that are compatible with the threaded sleeve (19).

7. The adjustable fiber spreading device according to claim 6, characterized in that, The meshing component includes worms (22) fixedly installed at both ends of the first connecting shaft (21). The worms (22) are located inside the support shell (18), and the worms (22) and the support shell (18) are rotatably connected. The threaded sleeve (19) is fixedly sleeved with a worm wheel (23) located inside the support shell (18), and the worm wheel (23) meshes with the corresponding worm (22).

8. The adjustable fiber spreading device according to claim 1, characterized in that, The upper and lower shaking structure includes fixed seats (9) fixedly installed at both ends of the shaking roller (2). The fixed seats (9) are equipped with guides that are compatible with the frame (1). The fixed seats (9) are fixedly connected with an adjusting connecting rod (10). A third reduction motor (24) is provided below the shaking roller (2). The third reduction motor (24) is fixedly connected to the frame (1). The output end of the third reduction motor (24) is fixedly connected to a second connecting shaft (37). The second connecting shaft (37) is rotatably connected to the frame (1). A second eccentric wheel (38) is fixedly sleeved on the outside of the second connecting shaft (37). A second eccentric sleeve (39) is rotatably sleeved on the outside of the second eccentric wheel (38). The top end of the second eccentric sleeve (39) is rotatably connected to the bottom end of the adjusting connecting rod (10).

9. The adjustable fiber spreading device according to claim 8, characterized in that, The guide includes a guide shaft (15) that is slidably mounted on a fixed base (9), and the two ends of the guide shaft (15) are fixedly connected to the frame (1) through guide shaft seats (16).

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