Windmill type cloth paving device

Abstract

The utility model discloses a windmill type cloth paving device, and belongs to the technical field of medical dressing production. Comprising a rack and a cloth rolling wheel, the cloth rolling wheel comprises a rotating shaft, a motor and a cutting and rolling wheel, the cutting and rolling wheel comprises two sets of spokes and a plurality of transverse rods, each set of spokes comprises a plurality of spokes, the two sets of spokes are arranged in a one-to-one correspondence mode, and the transverse rods are arranged between the two corresponding spokes; a slip ring is coaxially arranged at one end of the rotating shaft, and an electric brush matched with the slip ring is arranged on the rack; each spoke is of a hollow structure, a lead screw is arranged in each spoke in the direction where the spoke is located, a sliding hole is formed in the inner side of each spoke in the direction where the spoke is located, and a servo motor is arranged in each spoke and located at the end of the corresponding lead screw. The servo motor is electrically connected with the slip ring; sliding seats are arranged on the inner sides of the spokes in a sliding mode, and the outer ends of the sliding seats inwards penetrate through the sliding holes and are in threaded connection with the lead screws. The servo motors in the two corresponding spokes are synchronously driven; the two ends of the transverse rod are arranged on the sliding bases on the two corresponding spokes respectively. The servo motor is used for enabling the transverse rod to move towards the rotating shaft so that the outer diameter of the cloth roll can be always the same during cloth winding.

Description

Technical Field

[0001] This utility model belongs to the field of medical dressing production technology, and specifically relates to a windmill-type spreading device. Background Technology

[0002] When mass-producing items such as clothing, face masks, and shoe materials, stacked fabrics are cut. Currently, there are two common methods of stacking materials: one is to use a fabric spreading machine to spread the fabric multiple times, which is inefficient and time-consuming; the other is to use a windmill-type fabric rolling machine to first wind all the material into a roll, and then cut it from the middle.

[0003] Method 1 can be found in the following patent:

[0004] For example, patent application number CN202222939262.7 discloses a multi-layer fabric laying machine, including an unwinding mechanism, a fabric laying mechanism, and a cutting mechanism. The unwinding mechanism includes a support frame, an unwinding drum on the inner side of the support frame, fabric on the outer surface of the unwinding drum, a first motor mounted on the side surface of the support frame, a tension adjusting handle rotatably connected inside the first motor, a support frame at the front end of the support frame, a support rod on the inner side of the support frame, locking frames rotatably connected to both sides of the inner wall of the support frame, and rollers rotatably connected to both sides of the inner wall of the support frame. The output end of the first motor passes through the outer surface of the support frame and meshes with the unwinding drum. A support platform is provided at the front end of the support frame, the fabric laying mechanism is located on the upper surface of the support platform, and the cutting mechanism is located between the support platform and the support frame.

[0005] Method 2 can be found in the following patent:

[0006] For example, patent application number CN201920754496.X discloses a fabric spreading machine with an adjustable cutting roller diameter, including a frame, on which a cutting roller is mounted and rotatably mounted. A drive motor for rotating the cutting roller is mounted on the frame, and a cutting shear for cutting fabric is also mounted on the frame. The cutting roller includes a rotating shaft, with mounting plates fixed at both ends. Several spokes are fixed at intervals around the axis of the mounting plates, with the interval between adjacent spokes forming a cutting cavity. The spokes on the mounting plates at both ends of the rotating shaft are parallel and correspond one-to-one. A crossbar is provided between corresponding spokes on two mounting plates, with collars fixed at both ends of the crossbar. The collars are fitted onto the spokes and are slidably mounted on the spokes. A fixing element for securing the collars is also provided on the spokes.

[0007] For example, patent application number CN202011527410.3 discloses a high-efficiency, material-saving windmill-type fabric rolling machine, including a rotating frame, a first drive assembly for driving the rotating frame to rotate, and at least three sets of fabric rolling arms for cooperating with fabric rolling; characterized in that: the longitudinal distance between the fabric rolling end of the fabric rolling arm and the rotation center of the rotating frame is defined as a specific distance; the rotating frame is equipped with an adjustment assembly for adjusting the specific distance corresponding to each set of fabric rolling arms. Each fabric rolling arm includes a transverse fabric rolling shaft and at least one oblique connecting rod; one end of the oblique connecting rod is fixedly or rotatably connected to the fabric rolling shaft, and the other end of the oblique connecting rod is rotatably connected to the rotating frame; the adjustment assembly includes several sets of traction arms; each set of fabric rolling arms has at least one oblique connecting rod corresponding to at least one set of traction arms; the adjustment assembly also includes a second drive assembly for driving each set of traction arms to perform traction; the second drive assembly is mounted on the rotating frame. Multiple sets of the inclined connecting rods located on the same vertical plane constitute a connecting rod unit; at least one connecting rod unit contains an inclined connecting rod that corresponds to a set of traction arms and is provided with a traction groove; the length direction of the traction groove is the same as the length direction of the inclined connecting rod; the traction arm includes a traction wheel adapted to the traction groove and a sliding arm fixedly or rotatably connected to the traction wheel; the sliding arm is slidably connected to the rotating frame; the second drive assembly drives each set of sliding arms to slide.

[0008] Because the roll diameter varies, with the inner layer's circumference significantly shorter than the outer layer's, a large amount of edge material is cut off, resulting in substantial waste and hindering cost reduction. Therefore, the outer diameter of the fabric roll needs to remain constant, while the inner diameter must gradually decrease with each rotation. In existing technology, the inner diameter of the fabric roll cannot decrease automatically; manual operation of the crossbars towards the axis of rotation is required. However, the number of crossbars is large, and the movement of each crossbar is extremely small, typically less than 0.5mm, making operation very difficult. Summary of the Invention

[0009] To address the aforementioned problems, this utility model provides a windmill-type fabric laying device that automatically adjusts the inner diameter of the fabric roll using a servo motor, ensuring that the outer diameter of the fabric roll remains constant, thus facilitating control. The technical solution is as follows:

[0010] This utility model embodiment provides a windmill-type fabric spreading device, which includes a frame 1 and a fabric rolling wheel rotatably mounted on it. The fabric rolling wheel includes a rotating shaft 2 on the frame 1 arranged in a left-right direction, a motor 3 on the frame 1 for driving the rotating shaft 2 to rotate, and a cutting wheel coaxially mounted on the rotating shaft 2. The cutting wheel includes two sets of spokes arranged side by side and multiple crossbars 5 between the two sets of spokes. Each set of spokes includes multiple spokes 4 evenly distributed and arranged radially along the rotating shaft 2. The two sets of spokes are arranged one-to-one. The multiple crossbars 5 are located on the same circle concentric with the rotating shaft 2. The crossbars 5 are arranged in a left-right direction and are located between corresponding two spokes 4. One end of the rotating shaft 2 is connected to the rotating shaft 2. The shaft is equipped with a slip ring 6, and the frame 1 is equipped with a brush that cooperates with the slip ring 6; the spoke 4 is a hollow structure, with a lead screw 7 arranged inside it along its direction, and a sliding hole 8 arranged inside it along its direction, and a servo motor arranged inside it and at the end of the lead screw 7; the servo motor is electrically connected to the slip ring 6; a slide seat 9 is slidably arranged inside the spoke 4, and the outer end of the slide seat 9 passes inward through the sliding hole 8 and is threadedly connected to the lead screw 7; the servo motors in the corresponding two spokes 4 are driven synchronously; the two ends of the crossbar 5 are respectively arranged on the slide seats 9 on the corresponding two spokes 4; the servo motor is used to move the crossbar 5 toward the rotating shaft 2 so that the outer diameter of the cloth roll is always the same when winding the cloth.

[0011] Furthermore, the cutting and rolling wheel in this embodiment of the present invention also includes two discs 10; the two discs 10 are arranged side by side, located on the inner side of the two sets of spokes respectively, and are coaxially arranged on the rotating shaft 2, with multiple reinforcing beams 11 between them, each with a hollow hole; the multiple reinforcing beams 11 are evenly distributed around the rotating shaft 2 and are all arranged in the left-right direction, and the sliding hole 8 is located on the side of the disc 10 away from the rotating shaft 2.

[0012] Specifically, in this embodiment of the present invention, the servo motor is located at one end of the lead screw 7 near the rotating shaft 2 and is located at the disk 10.

[0013] Furthermore, the cutting wheel in this embodiment of the present invention also includes two rings 12; the two rings 12 are arranged side by side and are coaxial with the rotating shaft 2, and are respectively arranged on two sets of spokes; one end of the spoke 4 is fixed on the rotating shaft 2, and the other end is fixed on the corresponding ring 12.

[0014] In this embodiment of the present invention, the rotating shaft 2 is a hollow structure. The wire of the servo motor passes through the rotating shaft 2 and is electrically connected to the slip ring 6. The rotating shaft 2 and the corresponding spoke 4 are provided with through holes for the wire to pass through.

[0015] Furthermore, in one of the crossbars 5 of this utility model embodiment, a fixing rod 13 is provided on the side not where the cloth roll is wound. The fixing rod 13 is arranged in the left-right direction and multiple fixing clips are arranged side by side on it. The fixing clips are clamped on the fixing rod 13 and fix the starting end of the cloth roll on the fixing rod 13.

[0016] Furthermore, in this embodiment of the present invention, two housings 14 are arranged side by side on the frame 1. The two ends of the rotating shaft 2 are respectively rotatably mounted on the two housings 14 and extend into the housings 14. The cutting wheel is located between the two housings 14. An openable maintenance door is provided on the side of the housing 14 away from the cutting wheel. The two ends of the rotating shaft 2 are respectively provided with a drive wheel 15 and a slip ring 6. The drive wheel 15 and the slip ring 6 are respectively located in the two housings 14. The brush is located in the corresponding housing 14. The drive wheel 15 is a pulley or a gear and is connected to the motor 3 for transmission.

[0017] Furthermore, in this embodiment of the present invention, two slide rails 16 are arranged side by side on the inner side of the spoke 4. The two slide rails 16 are located on both sides of the slide hole 8 and are arranged along the direction of the spoke 4. The slide seat 9 has a T-shaped structure, with the two ends of its outer side of the transverse arm slidingly mounted on the two slide rails 16. Its longitudinal arm is located in the middle of the outer side of the transverse arm and passes through the slide hole 8 and is threadedly connected to the lead screw 7. The end of the crossbar 5 is fixed to the inner side of the transverse arm.

[0018] Specifically, in this embodiment of the present invention, each set of spokes includes 6-16 spokes 4, and the distance between the crossbar 5 and the pivot 2 is 0.6-2.0m.

[0019] Specifically, in this embodiment of the invention, for every two rotations of the cloth rolling wheel, the circumference of the circle formed by the crossbar 5 decreases by 1mm.

[0020] The beneficial effects of the technical solution provided by this utility model embodiment are: This utility model embodiment provides a windmill-type fabric laying device, which automatically adjusts the size of the inner diameter of the fabric roll through a servo motor, so that the outer diameter of the fabric roll is always the same, and the control is convenient. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the windmill-type fabric laying device in an embodiment of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure inside the cutting roller;

[0023] Figure 3 yes Figure 2 A magnified view of a portion of the image.

[0024] In the diagram: 1. Frame, 2. Shaft, 3. Motor, 4. Spokes, 5. Crossbar, 6. Slip ring, 7. Lead screw, 8. Sliding hole, 9. Slide seat, 10. Disc, 11. Reinforcing beam, 12. Ring, 13. Fixing rod, 14. Housing, 15. Drive wheel, 16. Slide rail. Detailed Implementation

[0025] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0026] Example 1

[0027] See Figure 1-3 Example 1 provides a windmill-type fabric spreading device, which includes a frame 1 and a fabric rolling wheel rotatably mounted on it. The fabric rolling wheel includes a rotating shaft 2, a motor 3, and a cutting wheel. The rotating shaft 2 is arranged in a left-right direction, with its left and right ends rotatably mounted on the frame 1. The motor 3 is mounted on the frame 1 and is used to drive the rotating shaft 2 to rotate. The cutting wheel is coaxially mounted on the rotating shaft 2, and the fabric is wound around the cutting wheel to form a multi-layered fabric roll.

[0028] The cutting and winding wheel includes two sets of spokes, two discs 10, two rings 12, and multiple crossbars 5, with each set of spokes corresponding to one disc 10 and one ring 12. The two sets of spokes are arranged side by side, located on the left and right sides of the rotating shaft 2, respectively. Each set of spokes includes 6-16 spokes 4 evenly distributed radially along the rotating shaft 2, with each set of spokes corresponding to the other. The multiple crossbars 5 are located on the same circle concentric with the rotating shaft 2, between the two sets of spokes. The crossbars 5 are arranged in a left-right direction, between corresponding spokes 4, and at a distance of 0.6-2.0m from the rotating shaft 2. One end of the rotating shaft 2 is coaxially equipped with a slip ring 6, and the other end is coaxially equipped with a drive wheel 15 (a Hall sensor can also be installed on it to detect the number of rotations of the rotating shaft 2). The drive wheel 15 is connected to the motor 3 and has a hollow structure. The frame 1 is equipped with brushes that mate with slip ring 6, with the brushes resting against slip ring 6 to power the servo motor. The spokes 4 are hollow, with a lead screw 7 (rotatable) inside along their direction. A sliding hole 8 (specifically an oblong hole) is located on their inner side along their direction. A servo motor (fixed inside the spoke 4, not shown) is located inside the lead screw 7 at its end. Two sliding rails 16, specifically rectangular tube structures, are arranged side-by-side on their inner side. The two sliding rails 16 are located on either side of the sliding hole 8 and are both aligned with the direction of the spokes 4. The servo motor is electrically connected to the slip ring 6. The servo motor's wires pass through a rotating shaft 2 and are electrically connected to the slip ring 6. A through hole is provided on the rotating shaft 2 corresponding to the spoke 4 for the wires to pass through. A sliding block 9 is slidably mounted on the inner side of the spokes 4. The sliding block 9 can slide along the direction of the spokes 4, and its outer end passes inward through the sliding hole 8 and is threadedly connected to the lead screw 7. The servo motors in the corresponding two spokes 4 are synchronously driven to ensure that the crossbar 5 is always positioned in the left-right direction. There are 6-16 crossbars 5, with their left and right ends respectively mounted on slide seats 9 on the corresponding two spokes 4. Specifically, the slide seat 9 has a T-shaped structure, with its two ends on the outer side of the transverse arm slidingly mounted on two slide rails 16, and its longitudinal arm located at the middle of the outer side of the transverse arm, passing through the sliding hole 8 and threadedly connected to the lead screw 7. The end of the crossbar 5 is fixed to the inner side of the transverse arm. Two discs 10 are arranged side by side, located on the left and right sides of the rotating shaft 2, respectively, and located on the inner side of the two sets of spokes. They are coaxially mounted on the rotating shaft 2, with multiple reinforcing beams 11 between them, each with perforated holes to reduce weight. The multiple (specifically 3-8) reinforcing beams 11 are evenly distributed around the rotating shaft 2 and are all arranged in the left-right direction. The sliding hole 8 is located on the side of the disc 10 away from the rotating shaft 2. Two rings 12 are arranged side by side, coaxially mounted with the rotating shaft 2, and are respectively mounted on the two sets of spokes. One end of the spoke 4 is fixed to the shaft 2, and the other end is fixed to the corresponding ring 12.

[0029] The servo motor is used to move the crossbar 5 toward the rotating shaft 2 so that the outer diameter of the fabric roll remains the same when it is wound. Specifically, for every 1-4 rotations of the winding wheel, the circumference of the circle formed by the crossbar 5 decreases by 0.5-4.0 mm.

[0030] Furthermore, in one of the crossbars 5 of this utility model embodiment, a fixing rod 13 is provided on the side not where the cloth roll is wound. The fixing rod 13 is arranged in the left and right direction and multiple (3-6) fixing clips are arranged side by side on it. The fixing clips are clamped on the fixing rod 13 and fix the starting end of the cloth roll on the fixing rod 13.

[0031] Example 2

[0032] Example 2 provides a windmill-type fabric laying device, which has a structure that is basically the same as that of Example 1. The difference is that the servo motor in this example is located at the end of the lead screw 7 near the rotating shaft 2 and is located at the disk 10 to reduce the length of the wire.

[0033] Example 3

[0034] See Figure 1 Example 3 provides a windmill-type fabric laying device, whose structure is basically the same as that of Example 2, except that: in this example, two boxes 14 are arranged side by side on the frame 1, and the boxes 14 are specifically vertically arranged rectangular boxes. The two ends of the rotating shaft 2 are respectively rotatably mounted on the two boxes 14 and extend into the boxes 14. The cutting roller is located between the two boxes 14, and an openable maintenance door is provided on the side of the box 14 away from the cutting roller. The drive wheel 15 and the slip ring 6 are respectively located in the two boxes 14, and the brushes are located in the corresponding boxes 14.

[0035] Example 4

[0036] Example 4 provides a windmill-type fabric spreading device, whose structure is basically the same as that of Example 2, except that: each set of spokes in this example includes 12 spokes 4, the circumference of the fabric roll is 9-10m, the maximum number of layers of the fabric roll is 150-250 layers, and the circumference of the circle formed by the crossbars 5 decreases by 1mm for every two rotations of the fabric rolling wheel.

[0037] Example 5

[0038] Example 5 provides a windmill-type fabric laying device, whose structure is basically the same as that of Example 1, except that: in this example, the servo motor can wirelessly communicate with the control cabinet, or multiple slip rings 6 are coaxially arranged on the rotating shaft 2. The multiple slip rings 6 are arranged side-by-side, each with a corresponding brush, and are electrically connected to the servo motors at both ends of the crossbar 5. This structure allows for individual control of each crossbar 5.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A windmill-type fabric spreading device, comprising a frame (1) and a fabric rolling wheel rotatably mounted thereon, the fabric rolling wheel comprising a rotating shaft (2) on the frame (1) and arranged in a left-right direction, a motor (3) on the frame (1) for driving the rotating shaft (2) to rotate, and a cutting wheel coaxially mounted on the rotating shaft (2), the cutting wheel comprising two sets of spokes arranged side by side and multiple crossbars (5) between the two sets of spokes, each set of spokes comprising multiple spokes (4) evenly distributed and arranged radially along the rotating shaft (2), the two sets of spokes being arranged one-to-one, the multiple crossbars (5) being located on the same circle concentric with the rotating shaft (2), the crossbars (5) being arranged in a left-right direction and being located between corresponding two spokes (4); characterized in that, One end of the rotating shaft (2) is coaxially provided with a slip ring (6), and the frame (1) is provided with an electric brush that cooperates with the slip ring (6); the spoke (4) is a hollow structure, with a lead screw (7) provided inside along its direction, and a sliding hole (8) provided on its inner side along its direction, and a servo motor provided inside and at the end of the lead screw (7); the servo motor is electrically connected to the slip ring (6); a slide seat (9) is slidably provided on the inner side of the spoke (4), and the outer end of the slide seat (9) passes inward through the sliding hole (8) and is threadedly connected to the lead screw (7); the servo motors in the corresponding two spokes (4) are synchronously driven; the two ends of the crossbar (5) are respectively provided on the slide seats (9) on the corresponding two spokes (4); the servo motor is used to make the crossbar (5) move toward the rotating shaft (2) so that the outer diameter of the cloth roll is always the same when winding the cloth.

2. The windmill-type fabric spreading device according to claim 1, characterized in that, The cutting wheel also includes two discs (10); the two discs (10) are arranged side by side, located on the inner side of the two sets of spokes respectively, and are coaxially arranged on the rotating shaft (2). Multiple reinforcing beams (11) are provided between them, each with a hollow hole; the multiple reinforcing beams (11) are evenly distributed around the rotating shaft (2) and are all arranged in the left and right direction. The sliding hole (8) is located on the side of the disc (10) away from the rotating shaft (2).

3. The windmill-type fabric spreading device according to claim 2, characterized in that, The servo motor is located at one end of the lead screw (7) near the shaft (2) and at the disk (10).

4. The windmill-type fabric spreading device according to claim 1, characterized in that, The cutting wheel also includes two rings (12); the two rings (12) are arranged side by side and are coaxial with the rotating shaft (2), and are respectively located on two sets of spokes; one end of the spoke (4) is fixed on the rotating shaft (2), and the other end is fixed on the corresponding ring (12).

5. The windmill-type fabric spreading device according to claim 1, characterized in that, The rotating shaft (2) is a hollow structure. The wire of the servo motor passes through the rotating shaft (2) and is electrically connected to the slip ring (6). The rotating shaft (2) and the corresponding spoke (4) are provided with through holes for the wire to pass through.

6. The windmill-type fabric spreading device according to claim 1, characterized in that, A fixing rod (13) is provided on one of the horizontal bars (5) and on the side not where the cloth roll is wound. The fixing rod (13) is arranged in the left and right direction and multiple fixing clips are arranged side by side on it. The fixing clips are clamped on the fixing rod (13) and fix the starting end of the cloth roll on the fixing rod (13).

7. The windmill-type fabric spreading device according to claim 1, characterized in that, The frame (1) has two boxes (14) arranged side by side. The two ends of the rotating shaft (2) are respectively rotatably mounted on the two boxes (14) and extend into the boxes (14). The cutting wheel is located between the two boxes (14). The side of the box (14) away from the cutting wheel is provided with an openable maintenance door. The two ends of the rotating shaft (2) are respectively provided with a drive wheel (15) and a slip ring (6). The drive wheel (15) and the slip ring (6) are respectively located in the two boxes (14). The brush is located in the corresponding box (14). The drive wheel (15) is a pulley or a gear and is connected to the motor (3) for transmission.

8. The windmill-type fabric spreading device according to claim 1, characterized in that, Two slide rails (16) are arranged side by side on the inner side of the spoke (4). The two slide rails (16) are located on both sides of the slide hole (8) and are arranged along the direction of the spoke (4). The slide block (9) is a T-shaped structure. The two ends of its transverse arm are slidably mounted on the two slide rails (16). Its longitudinal arm is located in the middle of the outer side of the transverse arm and passes through the slide hole (8) and is threadedly connected to the lead screw (7). The end of the crossbar (5) is fixed to the inner side of the transverse arm.

9. The windmill-type fabric spreading device according to claim 1, characterized in that, Each set of spokes includes 6-16 spokes (4), and the distance between the crossbar (5) and the pivot (2) is 0.6-2.0m.

10. The windmill-type fabric laying device according to claim 9, characterized in that, For every two rotations of the cloth rolling wheel, the circumference of the circle formed by the crossbar (5) decreases by 1 mm.

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