A cotton lap length rewinder

Abstract

The utility model discloses a kind of cotton roll fixed-length rewinding machine, which belongs to the technical field of strip material rewinding equipment.It mainly includes workbench, and workbench side is equipped with material cutting conveyor, and reciprocating cotton rolling mechanism is slidably connected on workbench, and fixedly connected with the cotton rolling drive mechanism for automatically rolling cotton roll and the material pushing telescopic mechanism for automatically discharging cotton roll on reciprocating cotton rolling mechanism, and the output end of cotton rolling drive mechanism is equipped with automatic cotton clamping device for cotton roll clamping fixation, and automatic cotton clamping device includes cotton clamping assembly and cotton clamping movable guide mechanism, and cotton clamping assembly includes transmission shaft, and at least two cotton clamping heads capable of being opened outward are rotatably connected to the other end of transmission shaft, and clamping rod is fixed on cotton clamping head.The utility model is high in degree of automation, integrates automatic clamping, rolling, material cutting, discharging function, replaces artificial material cutting, rolling, unloading, greatly reduces artificial error and labor intensity, and improves production efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of strip material rewinding equipment, and more specifically, it relates to a cotton roll fixed-length rewinding machine. Background Technology

[0002] After production, tampons and other strip materials typically need to be precisely rolled into standardized sizes to suit medical, everyday use, and other scenarios. Currently, this is mainly done using rewinding equipment. However, existing rewinding equipment is primarily designed for specific materials such as paper and is not compatible with the softness and non-tensile properties of tampons, easily leading to stretching deformation, breakage, or loose winding. Secondly, it cannot be rewound to a fixed length, and its automation level is low. Most equipment requires manual feeding, roll changing, and cutting, limiting production efficiency and generating waste during roll changing.

[0003] Patent CN210504887U discloses a high-speed rewinding mechanism for producing coreless cotton pulp rolls. The mechanism includes a frame, on which a rewinding device is mounted for coreless rewinding. The rewinding device includes a rewinding roller detachably mounted on the frame, and below the rewinding roller is a rewinding drive device for driving the material roll to rewind on the rewinding roller. This rewinding mechanism can rewind large cotton pulp rolls into finished coreless cotton pulp rolls.

[0004] However, the above-mentioned mechanism still has the following shortcomings: 1. It relies on rewinding rollers for rewinding, and cannot realize the rewinding of solid cotton rolls; 2. The rewinding length and width are not adjustable, and it is not possible to rewind multiple cotton rolls at the same time; 3. The degree of automation is insufficient, the dependence on manual labor is high, and after feeding, the material needs to be manually pulled to wrap around the rewinding rollers. It is also not suitable for continuous production of multi-specification products, resulting in low production efficiency. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a cotton roll fixed-length rewinding machine with a high degree of automation, which integrates automatic clamping, winding, cutting and unloading functions, replaces manual cutting, winding and unloading, greatly reduces manual error and labor intensity, and improves production efficiency.

[0006] The cotton roll fixed length rewinding machine includes a worktable, a material cutting conveying device on one side of the worktable, a reciprocating cotton winding mechanism slidably connected to the worktable, a cotton winding drive mechanism for automatically winding the cotton roll and a material pushing telescopic mechanism for automatically discharging the cotton roll are fixedly connected to the reciprocating cotton winding mechanism, and an automatic cotton clamping device for clamping and fixing the cotton roll is provided at the output end of the cotton winding drive mechanism. The automatic cotton clamping device includes a cotton clamping assembly and a cotton clamping movable guide mechanism. The cotton clamping assembly includes a drive shaft, one end of which is fixedly connected to the output end of the cotton rolling drive mechanism, and the other end of the drive shaft is rotatably connected to at least two cotton clamping heads that can be opened outward. A clamping rod is fixed on the cotton clamping head. The cotton clamping movable guide mechanism includes a movable bearing seat that can swing, a bearing body that is rotatably connected inside the movable bearing seat, and a bushing that is fixedly connected to the inner ring of the bearing body. The bushing is slidably sleeved on the outside of the drive shaft, and one end of the bushing is provided with a tapered hole that can drive the cotton clamping head to close.

[0007] Preferably, the conical hole has a trumpet-shaped structure, and the conical hole matches the shape of multiple closed cotton clamping heads. The cotton clamping heads are rotatably connected to the drive shaft, and elastic components for opening them are provided between opposite cotton clamping heads.

[0008] Preferably, the movable bearing seat is fixedly connected to two sides, and the upper and lower ends of the tapered hole of the movable bearing seat are rotatably connected to rotating brackets. The rotating brackets are provided with slots that match the thickness of the bearing body, and the bearing body is placed in the slots.

[0009] Preferably, the reciprocating cotton winding mechanism includes a reciprocating sliding plate, a fixed seat is fixedly connected to the reciprocating sliding plate, a second hinge seat is fixedly connected to one side of the fixed seat, the second hinge seat is rotatably connected to the lug on one side of the movable bearing seat, a first hinge seat is fixedly connected to the other side of the fixed seat, a cotton clamping cylinder is rotatably connected to the first hinge seat, and the extended end of the cotton clamping cylinder is rotatably connected to the lug on the other side of the movable bearing seat.

[0010] Preferably, the pushing telescopic mechanism includes a pushing cylinder, a pushing plate is provided at the extended end of the pushing cylinder, and the extended end of the pushing cylinder is movably connected to the pushing plate through a floating joint; guide optical shafts are provided on both sides of the pushing cylinder, the ends of the guide optical shafts are fixedly connected to the pushing plate, and linear bearings are slidably connected on the guide optical shafts, and the linear bearings are fixedly connected to the reciprocating cotton winding mechanism.

[0011] Preferably, the material conveying device includes a fixed frame, which is fixedly connected to the workbench. Two pairs of roller seats are fixedly connected to the upper two sides of the fixed frame. An upper feeding roller group and a lower feeding roller group are rotatably connected between the two pairs of roller seats. An upper feeding power mechanism and a lower feeding power mechanism are fixedly connected to the fixed frame through a support base. The upper feeding power mechanism drives the upper feeding roller group to rotate, and the lower feeding power mechanism drives the lower feeding roller group to rotate.

[0012] Preferably, the top of the fixed frame is fixedly connected to an installation plate, the installation plate is provided with a material guiding mechanism and at least one cotton inlet channel, the material guiding mechanism includes two spaced guide brackets, the guide brackets are provided with a cotton support shaft and a guide rotating shaft, and the guide rotating shaft is provided with a limiting ring for limiting the cotton sliver; the cotton inlet channel is located directly above the feed inlet of the upper feeding roller group.

[0013] Preferably, the mounting plate is provided with an adjustment component for fine-tuning the position of the cotton inlet channel and a cotton breakage sensing mechanism for sensing the cotton sliver. The adjustment component includes an adjustment plate, one end of which is rotatably connected to the mounting plate by a locking bolt that can be fixed, and the other end of the adjustment plate has a second elongated hole. The mounting plate has a first elongated hole, which is located directly above the feed inlet of the upper feed roller group. The cotton inlet channel passes through both the first and second elongated holes. The cotton breakage sensing mechanism includes a sensing bracket, which is fixedly connected to the mounting plate. The sensing bracket is provided with a sensing switch corresponding to the cotton inlet channel.

[0014] Preferably, the reciprocating cotton winding mechanism is provided with a cotton roll limiting mechanism, and the cotton roll limiting mechanism is provided with multiple cotton roll interval limiting mechanisms. The cotton roll limiting mechanism includes a limiting sliding plate and a limiting telescopic mechanism. The limiting sliding plate is slidably connected to the reciprocating cotton winding mechanism, and the sliding direction of the limiting sliding plate is perpendicular to the sliding direction of the reciprocating cotton winding mechanism. The limiting telescopic mechanism is fixedly connected to the reciprocating cotton winding mechanism, and the extended end of the limiting telescopic mechanism is connected to the limiting sliding plate. The cotton roll interval limiting mechanism includes a mounting frame, which is slidably connected to a limiting sliding plate via a fixed displacement slide. An interval plate is fixedly connected to the mounting frame. The interval plate has an elongated oblique hole and a slot corresponding to the clamping rod. The end of the elongated oblique hole away from the clamping rod is inclined upward. A limiting rod is provided in the elongated oblique hole, and a fixing ring for limiting is fixedly connected to the limiting rod.

[0015] Preferably, a frame is fixedly connected to the bottom of the workbench, and casters are fixedly connected to the four corners of the bottom of the frame.

[0016] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model has a high degree of automation, integrating automatic clamping, rolling, cutting, and unloading functions, replacing manual cutting, rolling, and unloading, greatly reducing human error and labor intensity, and improving production efficiency; and through the cooperation of servo motors, cylinders and other power components, it achieves precise linkage of each link, ensuring continuous production.

[0017] 2. The reciprocating cotton winding mechanism achieves lateral reciprocating motion through screw drive, so that the cotton strip is wound evenly, avoiding local accumulation or looseness, and ensuring the tightness and regularity of the cotton roll; the automatic cotton clamping device adopts a cone-shaped guide with a trumpet structure and elastic components to realize the synchronous opening and closing of the clamping head, preventing the cotton roll from shifting, slipping or loosening.

[0018] 3. The material cutting conveyor, with its adjustable transmission roller spacing and intermittent material cutting mechanism, is adapted to different specifications of cotton slivers, ensuring precise material cutting and reducing waste. The cotton roll limiting mechanism and the cotton roll interval limiting mechanism can be flexibly adjusted to meet the needs of cotton rolls of different lengths and diameters. Through mechanical limiting and oblique hole guiding design, the fixed length accuracy of the cotton roll and the finishing work are ensured, avoiding rolling defects.

[0019] 4. The cotton inlet channel can be finely adjusted via the adjustment components to accommodate cotton products of different widths and thicknesses; the bottom of the frame is equipped with casters with feet to facilitate equipment movement and fixation, adapting to different site layouts; the protective cover design combines safety protection and dust prevention, and the control display facilitates parameter adjustment, improving operational convenience. Attached Figure Description

[0020] Figure 1 This is a front structural diagram of the present invention; Figure 2 This is a schematic diagram of the rear structure of the present invention; Figure 3 This is a schematic diagram of the top structure of this utility model; Figure 4 This is a schematic diagram of the internal structure of the present invention; Figure 5 A schematic diagram showing the coordination between the reciprocating cotton winding mechanism and the material cutting conveyor; Figure 6 Schematic diagram of the reciprocating cotton winding mechanism Figure 1 ; Figure 7 Schematic diagram of the reciprocating cotton winding mechanism Figure 2 ; Figure 8 This is a top view of the reciprocating cotton winding mechanism and the cotton roll interval limiting mechanism; Figure 9 This is a schematic diagram showing the connection between the movable bearing housing and the rotating bracket; Figure 10 This is a schematic diagram of the quilting guide mechanism; Figure 11 This is a schematic diagram showing the connection between the bearing body and the bushing. Figure 12 This is a partial structural diagram of the cotton-padded assembly; Figure 13 This is a schematic diagram of the bottom structure of the reciprocating cotton winding mechanism; Figure 14 This is a schematic diagram of the material conveying device. Figure 15 This is a schematic diagram showing the installation of the upper and lower feed roller groups. Figure 16 This is a schematic diagram showing the connection between the cotton roll limiting mechanism and the cotton roll interval limiting mechanism. Figure 17 This is a schematic diagram of the bottom structure of the cotton roll limiting mechanism and the cotton roll interval limiting mechanism; Figure 18 This is a schematic diagram of the cotton roll interval limiting mechanism.

[0021] In the diagram, 1. Frame; 101. Casters; 102. Worktable; 103. Control box; 2. Reciprocating cotton winding mechanism; 201. Reciprocating sliding plate; 202. Reciprocating power mechanism; 203. Lead screw; 204. Lead screw nut; 21. Fixed seat; 2101. Linear bearing; 2102. Hinge seat one; 2103. Hinge seat two; 2104. Cotton clamping cylinder; 22. Cotton winding drive mechanism; 2201. Cotton winding motor; 2202. Reducer; 2203. Main shaft box; 23. Pusher. Telescopic mechanism; 2301, Pushing cylinder; 2302, Guide shaft; 2303, Pushing plate; 2304, Floating joint; 24, Automatic cotton clamping device; 241, Cotton clamping movable guide mechanism; 2411, Movable bearing seat; 2412, Hanging lug; 2413, Rotating seat; 2414, Slot; 2415, Bearing body; 2416, Tapered hole; 2417, Bushing; 242, Cotton clamping assembly; 2421, Drive shaft; 2422, Cotton clamping head; 2423, Clamping rod; 24 24. Elastic component; 3. Cotton roll limiting mechanism; 301. Limiting sliding plate; 302. Limiting telescopic mechanism; 303. Mounting base; 4. Cotton roll interval limiting mechanism; 401. Interval plate; 402. Slot; 403. Long oblique hole; 404. Mounting frame; 405. Limiting rod; 406. Fixing ring; 407. Displacement slide; 5. Material cutting conveyor; 501. Mounting plate; 502. Long oblique hole one; 503. Cotton inlet channel; 504. Fixing frame; 51. Upper feeding roller group; 52. 53. Gear; 54. Upper feeding power mechanism; 55. Lower feeding power mechanism; 56. Roller seat; 57. Sliding bearing seat; 6. Cotton breakage sensing mechanism; 601. Induction switch; 602. Induction bracket; 7. Material guiding mechanism; 701. Guide bracket; 702. Guide shaft; 703. Limit ring; 704. Cotton support shaft; 8. Adjustment assembly; 801. Adjustment plate; 802. Locking bolt; 803. Two elongated holes; 9. Control display; 10. Protective cover. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings: The directional terms used in the detailed description paragraphs are only for the convenience of those skilled in the art to understand the technical solutions described in this application based on the visual orientation shown in the accompanying drawings. Unless otherwise expressly specified and limited, the terms "setting," "installation," "connection," etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] like Figures 1 to 18 As shown, a cotton roll fixed-length rewinding machine includes a worktable 102. A material-cutting conveying device 5 is provided on one side of the worktable 102. The material-cutting conveying device 5 connects the cotton sliver feeding and winding stages, enabling continuous conveying of the cotton sliver. Simultaneously, it precisely cuts the material when the cotton roll reaches the set winding thickness, avoiding errors and inefficiencies associated with manual material cutting. A reciprocating cotton winding mechanism 2 is slidably connected to the worktable 102. The reciprocating cotton winding mechanism 2 drives the cotton winding component to move laterally back and forth through sliding motion, ensuring the cotton sliver is evenly wound onto the clamping device, preventing localized accumulation or loosening of the cotton roll, and guaranteeing the overall tightness and regularity of the cotton roll.

[0024] Specifically, such as Figure 13 As shown, the reciprocating cotton winding mechanism 2 includes a reciprocating sliding plate 201, with a slider fixed to the bottom of the reciprocating sliding plate 201. A slide rail cooperating with the slider is fixed to the worktable 102. A reciprocating power mechanism 202 is fixedly connected to the bottom of the worktable 102. The reciprocating power mechanism 202 is preferably a servo motor. The output end of the reciprocating power mechanism 202 is connected to a lead screw 203 via a coupling. A lead screw nut 204 is slidably connected to the lead screw 203. The lead screw nut 204 is fixedly installed inside a sliding seat, which is fixedly connected to the bottom of the reciprocating sliding plate 201. Both ends of the lead screw 203 are rotatably connected to bearing seats at the bottom of the worktable 102 via bearings. The forward and reverse rotation of the reciprocating power mechanism 202 drives the lead screw 203 to rotate forward and reverse. The lead screw nut 204 converts the rotational motion of the reciprocating power mechanism 202 into linear reciprocating motion, which is transmitted to the reciprocating sliding plate 201 via the sliding seat, causing the entire reciprocating cotton winding mechanism 2 to reciprocate synchronously.

[0025] like Figure 4 and Figure 5 As shown, the reciprocating cotton winding mechanism 2 is fixedly connected to a cotton winding drive mechanism 22 for automatically winding cotton rolls and a pusher telescopic mechanism 23 for automatically discharging cotton rolls. The output end of the cotton winding drive mechanism 22 is equipped with an automatic cotton clamping device 24 for clamping and fixing the cotton roll. In use, the automatic cotton clamping device 24 clamps the starting end of the cotton strip before winding and keeps the center of the cotton roll fixed during winding to prevent the cotton roll from shifting or slipping, ensuring a stable winding process and accurate cotton roll shape. The cotton winding drive mechanism 22 provides winding power, drives the automatic cotton clamping device 24 to rotate, and drives the cotton strip to wrap around the automatic cotton clamping device 24, replacing manual winding and improving winding efficiency and consistency. After the cotton roll is wound, the pusher telescopic mechanism 23 pushes the finished cotton roll out from the automatic cotton clamping device 24 through telescopic action to achieve automatic discharge and avoid cotton roll deformation or low efficiency caused by manual unloading.

[0026] like Figures 5 to 12As shown, the automatic cotton clamping device 24 includes a cotton clamping component 242 and a cotton clamping movable guide mechanism 241. The cotton clamping movable guide mechanism 241 provides guidance and driving force support for the opening and closing action of the cotton clamping component 242, ensuring that the opening and closing of the cotton clamping component 242 is smooth and synchronous, and avoiding cotton clamping deviation. The cotton clamping component 242 directly contacts the cotton strip, realizing the clamping and loosening of the end of the cotton strip, and is the core fixing component for rolling cotton rolls.

[0027] Specifically, the cotton clamping assembly 242 includes a drive shaft 2421. One end of the drive shaft 2421 is fixedly connected to the output end of the cotton rolling drive mechanism 22, which transmits the rotational power of the cotton rolling drive mechanism 22 to drive the cotton clamping assembly 242 to rotate as a whole, providing a rotational basis for cotton sliver winding. It also serves as a mounting carrier for the cotton clamping heads 2422, ensuring the fixed position of the cotton clamping components. The other end of the drive shaft 2421 is rotatably connected to multiple outwardly opening cotton clamping heads 2422. In this embodiment, two cotton clamping heads 2422 are preferably used, and clamping rods 2423 are fixed on each cotton clamping head 2422. The cotton clamping heads 2422 open and close by driving the clamping rods 2423, thereby clamping and releasing the ends of the cotton sliver, ensuring that the ends of the cotton roll are wound around the clamping rods 2423 during winding.

[0028] The cotton clamping guide mechanism 241 includes a swingable movable bearing seat 2411. A bearing body 2415 is rotatably connected inside the movable bearing seat 2411. A bushing 2417 is fixedly connected to the inner ring of the bearing body 2415. The bushing 2417 is slidably sleeved on the outside of the drive shaft 2421. The bearing body 2415 reduces the friction between the bushing 2417 and the movable bearing seat 2411, ensuring that the bushing 2417 slides smoothly along the drive shaft 2421 without affecting the rotational power transmission of the drive shaft 2421. That is, the movable bearing seat 2411 can swing around the hinge seat 2103, driving the bearing body 2415 and the bushing 2417 to adjust their positions, providing operating space for the opening and closing of the cotton clamping head 2422.

[0029] Furthermore, one end of the bushing 2417 is provided with a conical hole 2416 capable of driving the quilting head 2422 to close. The conical hole 2416, through its cooperation with the quilting head 2422, converts the sliding of the bushing 2417 into the closing force of the quilting head 2422, ensuring that the quilting head 2422 closes synchronously. In this embodiment, the conical hole 2416 has a trumpet-shaped structure, which provides a gradual guide for the closing of the quilting head 2422, avoiding damage caused by sudden changes in force on the quilting head 2422. The shape of the conical hole 2416 matches the two closed quilting heads 2422, ensuring that the conical hole 2416 fully fits the quilting head 2422, guaranteeing that each quilting head 2422 closes synchronously and smoothly, and preventing the cotton roll from loosening or deforming. The clamping head 2422 is rotatably connected to the end of the drive shaft 2421 via a pin, enabling flexible opening and closing of the clamping head 2422 and ensuring smooth opening and closing. Each clamping head 2422 has a coaxial mounting hole, within which is an elastic component 2424, a compression spring, with its two ends embedded in the mounting holes of the two clamping heads and abutting against the bottom of the holes. In its natural state, the elastic force of the compression spring 2424 pushes the two clamping heads 2422 outwards around the drive shaft 2421, ensuring reliable reset of the clamping heads 2422 without requiring additional power, simplifying the structure and ensuring stable clamping force.

[0030] like Figures 9 to 11 As shown, the movable bearing seat 2411 has lugs 2412 fixedly connected to both sides. The lugs 2412 serve as the connection points between the movable bearing seat 2411 and the clamping cylinder 2104, transmitting the cylinder's driving force to achieve the swinging of the movable bearing seat 2411. Rotary retainers 2413 are rotatably connected to the upper and lower ends of the tapered hole of the movable bearing seat 2411. The rotary retainers 2413 can adapt to changes in the position of the bearing body 2415, ensuring stable bearing rotation. The rotary retainers 2413 have grooves 2414 that match the thickness of the bearing body 2415. The bearing body 2415 is positioned within the grooves 2414, which axially limit the bearing body 2415, preventing axial displacement during rotation and ensuring precise sliding of the bushing, thereby ensuring reliable opening and closing of the clamping head 2422.

[0031] like Figures 4 to 8As shown, a fixed seat 21 is fixedly connected to the reciprocating sliding plate 201 of the reciprocating cotton winding mechanism 2. The fixed seat 21 is used to realize the vertical installation of the cotton winding drive mechanism 22 and the material pushing telescopic mechanism 23, making the structure more compact and stable. A hinge seat 2103 is fixedly connected to one side of the fixed seat 21. The hinge seat 2103 is rotatably connected to the lug 2412 on one side of the movable bearing seat 2411 by a pin. That is, the hinge seat 2103 serves as the fixed hinge point of the movable bearing seat 2411, restricting the movable bearing seat 2411 to swing only around this point, avoiding deviation, and ensuring the precise opening and closing action of the cotton clamping head 2422. A hinge seat 1 2102 is fixedly connected to the other side of the fixed seat 21. A cotton clamping cylinder 2104 is rotatably connected to the hinge seat 1 2102. The extended end of the cotton clamping cylinder 2104 is rotatably connected to the lug 2412 on the other side of the movable bearing seat 2411. The cotton clamping cylinder 2104 provides driving force through extension and retraction, which drives the movable bearing seat 2411 to swing around the hinge seat 2103, thereby driving the bushing 2417 to slide, realizing the automatic opening and closing of the cotton clamping head 2422.

[0032] The pusher telescopic mechanism 23 includes a pusher cylinder 2301. The extended end of the pusher cylinder 2301 is equipped with a pusher plate 2303. The pusher plate 2303 increases the contact area with the cotton roll, preventing excessive localized force during pushering and thus ensuring the complete ejection of the finished cotton roll. The extended end of the pusher cylinder 2301 is movably connected to the pusher plate 2303 via a floating joint 2304. The floating joint 2304 is preferably a flange-type floating joint. The floating joint 2304 compensates for installation errors or movement deviations between the pusher cylinder 2301 and the pusher plate 2303, preventing jamming caused by rigid connections, ensuring smooth pushering, and extending component lifespan. Guide shafts 2302 are provided on both sides of the pusher cylinder 2301. The ends of the guide shafts 2302 are fixedly connected to the pusher plate 2303. The guide shafts 2302 provide guidance for the extension and retraction of the pusher plate 2303, preventing the pusher plate 2303 from deviating or tilting, ensuring accurate pushing direction, and ensuring that the cotton roll falls into the designated discharge position. A linear bearing 2101 is slidably connected to the guide shaft 2302, and the linear bearing 2101 is fixedly connected to the fixed seat 21 on the reciprocating cotton winding mechanism 2. The linear bearing 2101 reduces the sliding friction of the guide shaft 2302, making the guide shaft 2302 slide more smoothly and reducing power loss; at the same time, it radially limits the guide shaft 2302, further ensuring the stability of pushing.

[0033] like Figure 6As shown, in this embodiment, the cotton winding drive mechanism 22 includes a cotton winding motor 2201, preferably a servo motor. The output end of the cotton winding motor 2201 is connected to a planetary reducer 2202, and the output end of the planetary reducer 2202 is connected to a spindle box 2203. The spindle box 2203 is fixedly connected to the fixed base 21 and serves as a rotational support. The transmission shaft 2421 passes through the spindle box 2203 and connects to the output end of the planetary reducer 2202. The cotton winding drive mechanism 22, through the high-precision speed regulation of the servo motor, the torque enhancement and speed matching of the planetary reducer 2202, the positioning support of the spindle box 2203, and the power transmission of the transmission shaft 2421, drives the automatic cotton clamping device 24 to rotate smoothly, ensuring that cotton products of different materials and specifications are wound evenly and tightly.

[0034] like Figure 14 and Figure 15 As shown, the material cutting and conveying device 5 includes a fixed frame 504, which is fixedly connected to the worktable 102. The fixed frame 504 has roller seats 56 fixedly connected to both sides of the upper part of the fixed frame 504. The upper feeding roller group 51 and the lower feeding roller group 52 are rotatably connected between the two roller seats 56. The roller seats 56 provide rotational support for the upper feeding roller group 51 and the lower feeding roller group 52 to ensure stable rotation of the roller group. The upper feeding roller group 51 cooperates with the lower feeding roller group 52 through intermittent rotation to achieve precise cutting of cotton sliver, replacing manual cutting and improving cutting accuracy and efficiency.

[0035] Specifically, both the upper feed roller group 51 and the lower feed roller group 52 include two relatively rotatable conveyor rollers. These conveyor rollers are rotatably connected to the roller base 56 via bearings. The outermost conveyor roller in both groups is connected to the roller base 56 via a sliding bearing seat 57. The roller base 56 has a rectangular groove for adjusting the position of the sliding bearing seat 57. The sliding bearing seat 57 is connected to the roller base 56 via a limiting bolt. In use, the limiting bolts are adjusted according to the specifications of the cotton sliver, thereby adjusting the distance between the corresponding two conveyor rollers in the same roller group to ensure smooth cotton sliver delivery and breakage.

[0036] In this embodiment, a gear 53 is fixedly connected to one end of each conveyor roller. The gears 53 of two corresponding conveyor rollers in the same roller group mesh with each other, and the gears 53 are preferably helical gears, which reduce noise and make the transmission more stable. The fixed frame 504 is fixedly connected to the upper feeding power mechanism 54 and the lower feeding power mechanism 55 through the support base. The upper feeding power mechanism 54 is fixedly connected to the end of any one of the conveyor rollers of the upper feeding roller group 51 through the coupling. The gear 53 on the conveyor roller meshes with the gear 53 of another conveyor roller in the same roller group, thereby driving the two conveyor rollers of the upper feeding roller group 51 to rotate relative to each other. The lower feeding power mechanism 55 is fixedly connected to the end of any one of the conveyor rollers of the lower feeding roller group 52 through the coupling, and similarly drives the two conveyor rollers of the lower feeding roller group 52 to rotate relative to each other. During operation, the upper feeding power mechanism 54 is intermittently paused. That is, when the cotton sliver needs to be fed, the upper feeding power mechanism 54 and the lower feeding power mechanism 55 start simultaneously. When the cotton sliver is finished and needs to be cut, the upper feeding power mechanism 54 pauses, while the lower feeding power mechanism 55 remains in the starting state. At this time, the cotton sliver of the upper feeding roller group 51 and the lower feeding roller group 52 will be pulled off, thus completing the automatic cotton cutting operation.

[0037] A mounting plate 501 is fixedly connected to the top of the fixed frame 504. The mounting plate 501 is equipped with a material guiding mechanism 7 and at least one cotton feeding channel 503. The material guiding mechanism 7 is used to guide and limit the cotton sliver to prevent it from deviating or wrinkling. The cotton feeding channel 503 is located directly above the feed inlet of the upper feed roller group 51, ensuring that the cotton sliver falls directly into the upper feed roller group 51 from the cotton feeding channel 503, reducing conveying deviation, ensuring accurate material cutting position, and avoiding waste generation. The number of cotton feeding channels 503 is determined according to the number of cotton rolls processed each time. The cotton feeding channels 503 can limit the feeding path of the cotton sliver, ensuring that the cotton sliver enters the upper feed roller group 51 accurately and avoiding feeding deviation.

[0038] like Figure 2 As shown, the material guiding mechanism 7 includes two spaced-apart guide supports 701. A cotton-supporting shaft 704 is fixedly connected to each guide support 701, and a guide shaft 702 is rotatably connected to each guide support 701. The cotton-supporting shaft 704 and the guide shaft 702 ensure that the cotton sliver is fed along a set direction. The guide shaft 702 is equipped with a limiting ring 703 for limiting the cotton sliver position. The limiting ring 703 corresponds to the position of the cotton infeed channel 503, preventing lateral deviation during cotton sliver conveying and ensuring that the cotton sliver always feeds along the set path, thus improving winding accuracy.

[0039] The mounting plate 501 is equipped with an adjustment component 8 for fine-tuning the position of the cotton inlet channel 503 and a cotton breakage sensing mechanism 6 for sensing cotton sliver breaks. The adjustment component 8 is used to fine-tune the position of the cotton inlet channel 503 to adapt to the winding of cotton rolls of different widths and thicknesses, thereby improving the equipment's adaptability. The cotton breakage sensing mechanism 6 can monitor the presence of cotton slivers in real time. If the cotton sliver breaks or the supply is insufficient, it will stop the machine or sound an alarm in time to avoid empty winding or winding defects.

[0040] Specifically, the adjusting assembly 8 includes an adjusting plate 801. One end of the adjusting plate 801 is rotatably connected to the mounting plate 501 via a locking bolt 802, and the other end of the adjusting plate 801 has a second elongated hole 803. The adjusting plate 801 rotates around the locking bolt 802, and in conjunction with the second elongated hole 803, it enables fine-tuning of the angle of the cotton inlet channel 503. The mounting plate 501 has a first elongated hole 502, which is located directly above the feed inlet of the upper feed roller assembly 51. The first elongated hole 502 provides lateral adjustment space for the cotton inlet channel 503. During installation, the cotton inlet channel 503 passes through both the first elongated hole 502 and the second elongated hole 803 simultaneously, ensuring that the position of the cotton inlet channel 503 is stable after adjustment and preventing displacement.

[0041] The cotton breakage sensing mechanism 6 includes a sensing bracket 602, which is fixedly connected to the mounting plate 501. The sensing bracket 602 has an elongated hole, and a sensing switch 601 corresponding to the cotton inlet channel 503 is installed inside the elongated hole. The sensing bracket 602 is used to fix the sensing switch 601, ensuring its position corresponds to the cotton inlet channel 503. The sensing switch 601 is preferably a photoelectric switch, used to detect the cotton sliver at the cotton inlet channel 503 in real time. When there is no cotton sliver, it can provide a feedback signal, facilitating machine shutdown and preventing idling or cotton breakage accidents.

[0042] like Figures 16 to 18As shown, the reciprocating cotton winding mechanism 2 is equipped with a cotton roll limiting mechanism 3, which is used to adjust the overall position of the cotton roll interval limiting mechanism 4. The cotton roll limiting mechanism 3 has multiple cotton roll interval limiting mechanisms 4 to accommodate cotton rolls of different lengths. The cotton roll interval limiting mechanism 4 precisely controls the length of the cotton roll through mechanical limiting, improving winding reliability and avoiding the risk of layers falling off during the winding process. The cotton roll limiting mechanism 3 includes a limiting sliding plate 301 and a limiting telescopic mechanism 302. The limiting sliding plate 301 is slidably connected to the reciprocating cotton winding mechanism 2 via a matching slide rail and slider. The sliding direction of the limiting sliding plate 301 is perpendicular to the transverse reciprocating direction (the length direction of the cotton roll) of the reciprocating cotton winding mechanism 2, i.e., it slides along the diameter direction of the cotton roll. By adjusting the position of the limiting sliding plate 301, the cotton roll interval limiting mechanism 4 is driven to cooperate with the clamping rod 2423, thereby adapting to cotton rolls of different lengths. During installation, the fixed end of the limiting telescopic mechanism 302 is fixedly connected to the reciprocating sliding plate 201 on the reciprocating cotton winding mechanism 2. The bottom of the limiting telescopic mechanism 302 is fixed with a mounting base 303, and the extended end of the limiting telescopic mechanism 302 is connected to the mounting base 303. The mounting base 303 is used to enhance the connection strength and ensure the movement accuracy of the limiting sliding plate 301. The limiting telescopic mechanism 302 provides automated power to the limiting sliding plate 301, realizing precise position adjustment without manual movement, thus improving efficiency and accuracy.

[0043] The cotton roll interval limiting mechanism 4 includes a mounting frame 404. The mounting frame 404 is slidably connected to the limiting sliding plate 301 via a fixed displacement slide 407 and a slide rail. The sliding direction of the displacement slide 407 is consistent with the transverse reciprocating direction of the reciprocating cotton rolling mechanism 2. The displacement slide 407 can drive the mounting frame 404 to finely adjust its position to adapt to the fixed length requirements of cotton rolls of different lengths. After adjustment, it is fixed by locking the handle to ensure the stability of the fixed length position. The displacement slide 407 is commercially available and will not be described in detail. An interval plate 401 is fixedly connected to the mounting frame 404. The interval plate 401 has an elongated oblique hole 403 and a slot 402 corresponding to the clamping rod 2423. The slot 402 can accommodate the clamping rod 2423. Before rolling, the slot 402 is fitted into the outside of the clamping rod 2423 to avoid interference between the clamping rod and the interval plate 401 during the rolling process, while ensuring the limiting accuracy in the length direction of the cotton roll. The elongated oblique hole 403 provides a moving path for the limiting rod 405. During winding, the limiting rod 405 always stays close to the outside of the cotton roll, making the wound cotton roll more regular. The end of the elongated oblique hole 403 away from the clamping rod 2423 is inclined upwards, and the limiting rod 405 is provided inside the elongated oblique hole 403. A fixing ring 406 for limiting is fixedly connected to the limiting rod 405. When the diameter of the cotton roll increases, the limiting rod 405 moves upwards along the oblique hole to avoid hard contact with the cotton roll and deformation, providing a finishing touch for the rewinding process.

[0044] In this embodiment, a frame 1 is fixedly connected to the bottom of the workbench 102. Casters 101 are fixedly connected to the four corners of the bottom of the frame 1. The casters 101 are preferably omnidirectional casters with feet, facilitating movement and fixation of the entire machine, improving site adaptability, and simplifying production line layout adjustments. A control box 103 is fixedly installed inside the frame 1. Protective covers are provided on the outer sides of the upper feeding power mechanism 54 and the lower feeding power mechanism 55. A control display 9 is fixedly installed on the outer side of the protective covers. The protective covers protect the power mechanisms and prevent foreign objects from being drawn in. The control display 9 allows operators to set and adjust winding parameters, such as cotton roll length and winding speed. A protective cover 10 is provided on the outer sides of the fixed base 21 and the cotton rolling drive mechanism 22. The protective cover 10 provides safety protection, noise reduction, sound insulation, dust and lint prevention, and prevents exposed moving parts such as the motor and planetary reducer 2202 from contact with operators, thus avoiding safety accidents and improving the working environment.

[0045] During installation, the cotton rolling motor 2201, the pushing cylinder 2301, the clamping cylinder 2104, the upper feeding power mechanism 54, the lower feeding power mechanism 55, the limit telescopic mechanism 302, and the control display 9 are all connected to the control box 103. Those skilled in the art can use existing technologies, such as installing appropriate mechanical limit switches or photoelectric sensors, to limit the specified positions of each actuator during the following operation process; to achieve automated operation, this utility model can employ numerical control technology or a PLC to control the actions of each actuator.

[0046] Working principle: After being guided and limited by the limiting ring 703 on the cotton-supporting shaft 704 and the guide shaft 702 of the material guiding mechanism 7, the cotton sliver falls precisely into the two drive rollers of the upper feeding roller group 51 in the material breakage conveying device 5 through the cotton inlet channel 503. The upper feeding power mechanism 54 and the lower feeding power mechanism 55 are started. The lower feeding power mechanism 55 drives the drive rollers in the lower feeding roller group 52 to rotate normally, while the drive rollers of the upper feeding roller group 51 are driven to rotate synchronously by the upper feeding power mechanism 54. The two sets of rollers clamp the cotton sliver through the two relatively rotating drive rollers to achieve continuous and stable conveying, supplying material for the winding stage. During this process, the induction switch 601 of the cotton breakage sensing mechanism 6 monitors the status of the cotton sliver in the cotton inlet channel 503 in real time. If the cotton sliver breaks or the supply is insufficient, it immediately sends a feedback signal and triggers a stop or alarm to avoid empty winding.

[0047] The cotton sliver passes sequentially between the corresponding drive rollers in the upper feed roller group 51 and the lower feed roller group 52, and enters between the two clamping rods 2423. Then, the cotton clamping cylinder 2104 is activated, its telescopic rod extends, driving the movable bearing seat 2411 to swing around the hinge seat 2103, causing the bushing 2417 to slide along the drive shaft 2421. The trumpet-shaped conical hole 2416 of the bushing 2417 fits against the cotton clamping head 2422, forcing the cotton clamping head 2422 to overcome the elastic force of the elastic component 2424 and close synchronously. The clamping rod 2423 clamps the starting end of the cotton sliver, providing a fixed fulcrum for winding and preventing the cotton roll from shifting or slipping during winding.

[0048] Then, the cotton roll limiting mechanism 3 is activated, and the limiting telescopic mechanism 302 drives the limiting sliding plate 301 to slide vertically, so that the slot 402 of the cotton roll interval limiting mechanism 4 fits into the outside of the clamping rod 2423. After that, the cotton rolling drive mechanism 22 is activated, and the cotton rolling motor 2201, after increasing the torque and matching the speed through the planetary reducer 2202, drives the transmission shaft 2421 of the automatic cotton clamping device 24 to rotate through the main shaft box 2203. The transmission shaft 2421 continues to rotate, driving the cotton sliver to wrap around the clamping rod 2423 to form a cotton roll; at the same time, the reciprocating power mechanism 202 drives the lead screw 203 to rotate in both forward and reverse directions, and the lead screw nut 204 converts the rotational motion into linear reciprocating motion, which drives the reciprocating sliding plate 201 to move laterally along the slide rail of the worktable 102 through the sliding seat, thereby driving the entire reciprocating cotton rolling mechanism 2 to reciprocate synchronously, so that the cotton sliver is evenly wrapped on the clamping rod 2423, avoiding local accumulation or looseness. Meanwhile, during the rolling process, the spacer plate 401 precisely controls the length of the cotton roll through mechanical limiting; the limiting rod 405 fits against the outer side of the cotton roll along the long oblique hole 403 of the spacer plate 401, and moves upward along the oblique hole as the diameter of the cotton roll increases, avoiding hard collisions that could cause the cotton roll to deform.

[0049] If the length of the cotton roll needs to be adjusted, the position of the cotton roll interval limiting mechanism 4 can be finely adjusted by the displacement slide 407, and the position of the cotton inlet channel 503 can be finely adjusted by the adjustment component 8 to adapt to different needs.

[0050] When the cotton sliver reaches the set rewinding length, the upper feeding power mechanism 54 stops working, the upper feeding roller group 51 stops rotating, while the lower feeding roller group 52 continues to rotate. A speed difference is formed between the two roller groups, and the cotton sliver is precisely pulled off under tension, completing automatic cotton cutting, replacing manual cutting, and avoiding cutting errors.

[0051] After the cotton is cut, the pushing cylinder 2301 of the pushing telescopic mechanism 23 extends, driving the pushing plate 2303 to move smoothly along the guide optical axis 2302 through the floating joint 2304, pushing the finished cotton roll out from the automatic cotton clamping device 24 and falling into the designated discharge position, realizing automatic unloading and avoiding deformation of the cotton roll caused by manual unloading. Subsequently, the pushing cylinder 2301 retracts, the cotton clamping cylinder 2104 retracts, the movable bearing seat 2411 resets, the bushing 2417 retracts along the transmission shaft 2421, the cotton clamping head 2422 automatically opens under the elastic force of the elastic component 2424, and the clamping rod 2423 opens.

[0052] After the material is discharged, all mechanisms are reset, that is, the clamping rod 2423 and the reciprocating cotton winding mechanism 2 return to their initial positions, and the upper feeding roller group 51 resumes rotation. At this time, the openings of the two clamping rods 2423 correspond to the discharge port of the lower feeding roller group 52, and the equipment enters the next round of operation cycle to continuously complete the batch production of cotton rolls.

[0053] Finally, although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A cotton roll rewinding machine of fixed length, comprising a worktable (102), characterized in that: A material feeding device (5) is provided on one side of the workbench (102). A reciprocating cotton winding mechanism (2) is slidably connected on the workbench (102). A cotton winding drive mechanism (22) for automatically winding cotton rolls and a pushing telescopic mechanism (23) for automatically discharging cotton rolls are fixedly connected on the reciprocating cotton winding mechanism (2). An automatic cotton clamping device (24) for clamping and fixing cotton rolls is provided at the output end of the cotton winding drive mechanism (22). The automatic cotton clamping device (24) includes a cotton clamping assembly (242) and a cotton clamping movable guide mechanism (241). The cotton clamping assembly (242) includes a drive shaft (2421). One end of the drive shaft (2421) is fixedly connected to the output end of the cotton rolling drive mechanism (22). The other end of the drive shaft (2421) is rotatably connected to at least two cotton clamping heads (2422) that can be opened outward. A clamping rod (2423) is fixed on the cotton clamping head (2422). The cotton clamping movable guide mechanism (241) includes a movable bearing seat (2411) that can swing. A bearing body (2415) is rotatably connected inside the movable bearing seat (2411). A bushing (2417) is fixedly connected in the inner ring of the bearing body (2415). The bushing (2417) is slidably sleeved on the outside of the drive shaft (2421), and one end of the bushing (2417) is provided with a conical hole (2416) that can drive the cotton clamping head (2422) to close.

2. The cotton roll rewinding machine according to claim 1, characterized in that: The conical hole (2416) has a trumpet-shaped structure and matches the shape of multiple closed cotton clamping heads (2422). The cotton clamping heads (2422) are rotatably connected to the drive shaft (2421), and elastic components (2424) for opening are provided between the opposite cotton clamping heads (2422).

3. A cotton roll rewinding machine of fixed length according to claim 1, characterized in that: The movable bearing seat (2411) is fixedly connected to two sides with lugs (2412), and the upper and lower ends of the tapered hole of the movable bearing seat (2411) are rotatably connected with rotating brackets (2413). The rotating brackets (2413) are provided with slots (2414) that match the thickness of the bearing body (2415), and the bearing body (2415) is set in the slots (2414).

4. A cotton roll rewinding machine of fixed length according to claim 3, characterized in that: The reciprocating cotton winding mechanism (2) includes a reciprocating sliding plate (201), a fixed seat (21) is fixedly connected to the reciprocating sliding plate (201), a second hinge seat (2103) is fixedly connected to one side of the fixed seat (21), the second hinge seat (2103) is rotatably connected to the lug (2412) on one side of the movable bearing seat (2411), a first hinge seat (2102) is fixedly connected to the other side of the fixed seat (21), a cotton clamping cylinder (2104) is rotatably connected to the first hinge seat (2102), and the extended end of the cotton clamping cylinder (2104) is rotatably connected to the lug (2412) on the other side of the movable bearing seat (2411).

5. A cotton roll rewinding machine of fixed length according to claim 1, characterized in that: The pusher telescopic mechanism (23) includes a pusher cylinder (2301), and a pusher plate (2303) is provided at the extended end of the pusher cylinder (2301). The extended end of the pusher cylinder (2301) is movably connected to the pusher plate (2303) through a floating joint (2304). Guide optical shafts (2302) are provided on both sides of the pusher cylinder (2301). The end of the guide optical shaft (2302) is fixedly connected to the pusher plate (2303). A linear bearing (2101) is slidably connected on the guide optical shaft (2302). The linear bearing (2101) is fixedly connected to the reciprocating cotton winding mechanism (2).

6. A cotton roll rewinding machine of fixed length according to claim 1, characterized in that: The material conveying device (5) includes a fixed frame (504), which is fixedly connected to the worktable (102). The upper two sides of the fixed frame (504) are respectively fixedly connected to roller seats (56). The upper feeding roller group (51) and the lower feeding roller group (52) are rotatably connected between the two roller seats (56). The fixed frame (504) is fixedly connected to the upper feeding power mechanism (54) and the lower feeding power mechanism (55) through the support base. The upper feeding power mechanism (54) drives the upper feeding roller group (51) to rotate, and the lower feeding power mechanism (55) drives the lower feeding roller group (52) to rotate.

7. A cotton roll rewinding machine of fixed length according to claim 6, characterized in that: The top of the fixed frame (504) is fixedly connected to the mounting plate (501). The mounting plate (501) is provided with a material guiding mechanism (7) and at least one cotton inlet channel (503). The material guiding mechanism (7) includes two spaced guide brackets (701). The guide brackets (701) are provided with a cotton support shaft (704) and a guide shaft (702). The guide shaft (702) is provided with a limiting ring (703) for limiting the cotton sliver. The cotton inlet channel (503) is located directly above the feed inlet of the upper feed roller group (51).

8. A cotton roll rewinding machine of fixed length according to claim 7, characterized in that: The mounting plate (501) is provided with an adjustment component (8) for fine-tuning the position of the cotton inlet channel (503) and a cotton breakage sensing mechanism (6) for sensing the cotton sliver. The adjustment component (8) includes an adjustment plate (801). One end of the adjustment plate (801) is rotatably connected to the mounting plate (501) by a locking bolt (802) that can be fixed. The other end of the adjustment plate (801) is provided with a second elongated hole (803). The mounting plate (501) is provided with a first elongated hole (502), and the first elongated hole (502) is located directly above the feed inlet of the upper feed roller group (51). The cotton inlet channel (503) passes through both the first elongated hole (502) and the second elongated hole (803). The cotton breakage sensing mechanism (6) includes a sensing bracket (602), which is fixedly connected to the mounting plate (501). The sensing bracket (602) is provided with a sensing switch (601) corresponding to the cotton inlet channel (503).

9. A cotton roll rewinding machine for fixed length according to any one of claims 1 to 8, characterized in that: The reciprocating cotton winding mechanism (2) is provided with a cotton roll limiting mechanism (3), and the cotton roll limiting mechanism (3) is provided with multiple cotton roll interval limiting mechanisms (4). The cotton roll limiting mechanism (3) includes a limiting sliding plate (301) and a limiting telescopic mechanism (302). The limiting sliding plate (301) is slidably connected to the reciprocating cotton winding mechanism (2), and the sliding direction of the limiting sliding plate (301) is perpendicular to the sliding direction of the reciprocating cotton winding mechanism (2). The limiting telescopic mechanism (302) is fixedly connected to the reciprocating cotton winding mechanism (2), and the extended end of the limiting telescopic mechanism (302) is connected to the limiting sliding plate (301). The cotton roll interval limiting mechanism (4) includes a mounting frame (404). The mounting frame (404) is slidably connected to the limiting sliding plate (301) via a fixed displacement slide (407). A spacer plate (401) is fixedly connected to the mounting frame (404). The spacer plate (401) has an elongated oblique hole (403) and a slot (402) corresponding to the clamping rod (2423). The end of the elongated oblique hole (403) away from the clamping rod (2423) is inclined upward. A limiting rod (405) is provided in the elongated oblique hole (403). A fixing ring (406) for limiting is fixedly connected to the limiting rod (405).

10. A cotton roll rewinding machine of fixed length according to claim 9, characterized in that: The bottom of the workbench (102) is fixedly connected to a frame (1), and the four corners of the bottom of the frame (1) are respectively fixedly connected to moving wheels (101).

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