Spreading cloth mechanism

Abstract

The utility model discloses spread cloth mechanism, including cloth stand and install its tension component, flatten and centering subassembly, balance bar subassembly, guide roller no.

Description

Technical Field

[0001] This utility model relates to the field of textile machinery, and in particular to a fabric distribution mechanism used in a fabric finishing production line. Background Technology

[0002] In the finishing process of textiles, it is necessary to unfold the packaged fabric and feed it continuously, smoothly, and accurately into the corresponding position of the processing equipment. Wide-width, loosely packaged fabrics are often unevenly stacked when opened. For accurate cutting in subsequent processes, the fabric must be flattened without shifting or wrinkling during the initial fabric feeding process, and the feeding speed must be stable. The applicant's existing fabric feeding mechanism uses a motor-driven flattening and centering component that expands the fabric along a single winding shaft. Due to the uneven stacking of the incoming material, the edge position of the expanded fabric is uncertain and has a large deviation (lacking a correction function), resulting in inaccurate cutting in subsequent processes. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model provides a fabric distribution mechanism in which the left and right segmented winding shafts are driven to rotate independently. Based on real-time monitoring by the fabric edge detection sensor, the rotation speed of the winding shafts is adjusted in a timely manner to correct fabric deviation.

[0004] To achieve the above objectives, the present invention provides the following technical solution: The fabric distribution and feeding mechanism includes a fabric feeding frame and a tension assembly, a flattening and centering assembly, a balance bar assembly, a guide roller one, a spreading roller, a guide roller two, and a fabric edge detection sensor mounted on it. The fabric passes through the tension assembly, the flattening and centering assembly, the balance bar assembly, the guide roller one, the spreading roller two, and the guide roller two from the front side of the fabric feeding frame to the rear side of the fabric feeding frame. The fabric edge detection sensor is located on the fabric feeding frame below the flattening and centering assembly at the positions where the fabric passes on both sides. The flattening and centering assembly includes two winding shafts, a middle bearing seat, an edge bearing seat, and a drive motor. The two winding shafts are arranged in a straight line with opposite patterns. Their inner ends are movably connected to the middle bearing seat, and their outer ends are movably connected to the edge bearing seats on both sides and then connected to the drive motor.

[0005] A further improvement is that the fabric-laying support frame is rectangular, with the tension assembly and the flattening and centering assembly movably installed at the lower and top positions of the front side frame of the fabric-laying support frame, respectively. The balance bar assembly is movably installed at the inner side of the middle of the front side frame of the fabric-laying support frame. The first guide roller is movably installed on the top surface of the fabric-laying support frame behind the flattening and centering assembly. The spreading roller is movably installed at the rear of the top surface of the fabric-laying support frame. The second guide roller is movably installed at the lower position of the rear side frame of the fabric-laying support frame below the spreading roller.

[0006] A further improvement is that a bottom rod is provided at the lower part of the front frame of the fabric placement stand, and the fabric passes around the bottom rod and then passes through the two tension rods of the upper tension assembly to go upward.

[0007] A further improvement is that the tension assembly includes two tension rods fixed in parallel to the end plates at both ends, and the end plates at both ends are provided with a rotating shaft to movably mount the tension rods on the fabric laying stand through a shaft support.

[0008] A further improvement is that a tension adjuster is installed on one side of the fabric-laying frame at the corresponding position of the tension component, and the tension adjuster is movably connected to the rotating shaft.

[0009] A further improvement is that the balance bar assembly includes a mounting base, a balance bar and gears at both ends. The two mounting bases are fixed on the fabric-laying stand below the flattening and centering assembly. The mounting bases are equipped with vertical racks that mesh with the gears.

[0010] A further improvement is that the guide roller one and guide roller two are mounted on the fabric-laying frame via a suspended spherical bearing.

[0011] A further improvement is that the spreading roller is mounted on the fabric-laying frame via an open circular flange guide shaft support. Beneficial effects

[0012] This invention integrates tension control, flattening, centering, and guiding functional modules onto a single frame, resulting in a compact layout. It automates fabric edge centering through sensors and a control system, significantly reducing manual intervention. In particular, the flattening and centering component employs a dual-winding shaft reverse design with independent drive, ensuring precise synchronization and accurate, efficient, and stable flattening of both sides of the fabric. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the present invention in operation; Figure 2 This is a rear-view three-dimensional structural diagram of the present invention; Figure 3 This is a schematic diagram of the tension component structure of this utility model; Figure 4 This is a schematic diagram of the flattening and centering component structure of this utility model; Figure 5 This is a schematic diagram of the balance bar assembly of this utility model. Detailed Implementation

[0014] like Figure 1 , Figure 2 As shown, the fabric distribution mechanism of this utility model has a rectangular fabric distribution frame 1 as its main body. Following the fabric's direction of travel, a tension assembly 2, a flattening and centering assembly 3, a balance bar assembly 4, a guide roller 5, a spreading roller 6, and a guide roller 7 are installed sequentially. A bottom rod 11 is provided at the lower part of the front frame of the fabric distribution frame 1. After the fabric is drawn out from the front fabric pile, it first passes around the bottom rod 11 and then moves upwards.

[0015] like Figure 3 As shown, the tension assembly 2 includes two tension rods 21 fixed parallel to each other on end plates 22 at both ends. A rotating shaft 23 is provided on each end plate 22, and the tension rods 21 are movably mounted on the lower part of the front frame of the fabric placement stand 1 via a shaft support 24. The fabric passes over the bottom rod 11 and then passes between the two tension rods of the upper tension assembly 2 to ascend. The fabric placement stand 1 is also equipped with a tension adjuster 25, which is movably connected to the rotating shaft 23. By driving the rotating shaft 23 to rotate, the included angle formed by the two tension rods 21 is changed, thereby adjusting the wrap angle of the fabric and realizing the setting and fine-tuning of the tension.

[0016] After passing through tension assembly 2, the fabric continues to rise to flattening and centering assembly 3. Flattening and centering assembly 3 is movably installed at the top of the front frame on the fabric placement stand 1. Figure 4 As shown, the assembly includes two winding shafts 31 connected by an intermediate bearing seat 32 to form a straight shaft, with both ends supported by edge bearing seats 33. Each winding shaft 31 is driven by a drive motor 34. A fabric edge detection sensor 8 is mounted on the fabric placement stand 1 below the flattening and centering assembly 3, directly facing the fabric edge. When the sensor 8 detects a fabric edge misalignment, the control system controls the drive motors 34 to rotate, causing both winding shafts 31 to rotate simultaneously. This moves the fabric passing through the winding shafts 31 towards the center or to the sides, pushing the fabric back to the correct position.

[0017] The balance bar assembly 4 is movably mounted on the inner side of the front frame of the fabric placement stand 1, located below the flattening and centering assembly 3. The guide roller 5 is movably mounted on the top surface of the fabric placement stand behind the flattening and centering assembly via a suspended spherical bearing. The fabric travels downwards after passing the flattening and centering assembly 3, then upwards around the balance bar assembly 4, and then travels towards the rear of the fabric placement stand via the guide roller 5. Figure 5 As shown, the gears 43 at both ends of the balance bar 42 of the balance bar assembly 4 mesh with the vertical rack 44 fixed in the mounting base 41. When the fabric tension fluctuates slightly, the balance bar 42 can float up and down by its own weight and the gear and rack structure, absorbing and buffering the tension changes, thus stabilizing the tension.

[0018] The spreading roller 6 is movably mounted on the rear of the top surface of the fabric feeding frame 1 via an open circular flange guide shaft support. The second guide roller 7 is movably mounted on the lower part of the rear side frame of the fabric feeding frame below the spreading roller via a suspended outer spherical bearing. Finally, after being guided by the first guide roller 5, the fabric is powerfully flattened by the high-speed rotating spreading roller 6 to eliminate curling and wrinkles, and then guided upwards by the second guide roller 7 to enter the subsequent processing equipment.

[0019] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A fabric feeding mechanism, comprising a fabric feeding stand (1) and a tension assembly (2), a flattening and centering assembly (3), a balance bar assembly (4), a guide roller (5), a spreading roller (6), a guide roller (7), and a fabric edge detection sensor (8) mounted thereon, wherein the fabric passes through the tension assembly (2), the flattening and centering assembly (3), the balance bar assembly (4), the guide roller (5), the spreading roller (6), and the guide roller (7) sequentially from the front side of the fabric feeding stand (1) to the rear side of the fabric feeding stand (1), and the fabric edge detection sensor (8) is located on the fabric feeding stand (1) below the flattening and centering assembly (3) at the positions where the fabric passes on both sides, characterized in that: The flattening and centering assembly (3) includes two winding shafts (31), a middle bearing seat (32), a side bearing seat (33), and a drive motor (34). The two winding shafts (31) are arranged in a straight line with opposite patterns. Their inner ends are movably connected to the middle bearing seat (32), and their outer ends are movably connected to the side bearing seats (33) on both sides and then connected to the drive motor (34).

2. The fabric distribution mechanism according to claim 1, characterized in that: The fabric-laying stand (1) is rectangular. The tension assembly (2) and the flattening and centering assembly (3) are respectively movably installed on the lower and top positions of the front side frame of the fabric-laying stand (1). The balance bar assembly (4) is movably installed on the inner side of the middle of the front side frame of the fabric-laying stand (1). The first guide roller (5) is movably installed on the top surface of the fabric-laying stand behind the flattening and centering assembly. The opening roller (6) is movably installed on the rear part of the top surface of the fabric-laying stand. The second guide roller (7) is movably installed on the lower part of the rear side frame of the fabric-laying stand below the opening roller.

3. The fabric distribution mechanism according to claim 2, characterized in that: The front side of the fabric support frame (1) is provided with a bottom rod (11). The fabric passes around the bottom rod (11) and then passes through the two tension rods of the upper tension assembly (2) to go upward.

4. The fabric distribution mechanism according to claim 1, characterized in that: The tension assembly (2) includes two tension rods (21) fixed in parallel on the end plates (22) at both ends. The end plates (22) at both ends are provided with a rotating shaft (23) which movably mounts the tension rods (21) on the fabric support frame (1) through the shaft support (24).

5. The fabric distribution mechanism according to claim 4, characterized in that: A tension adjuster (25) is installed on one side of the fabric-laying frame (1) at the position corresponding to the tension component (2), and the tension adjuster (25) is movably connected to the rotating shaft (23).

6. The fabric distribution mechanism according to claim 1, characterized in that: The balance bar assembly (4) includes a mounting base (41), a balance bar (42) and gears (43) at both ends. The two mounting bases (41) are fixed on the fabric-laying stand (1) below the flattening and centering assembly. The mounting base (41) is provided with a vertical rack (44), which meshes with the gear (43).

7. The fabric distribution mechanism according to claim 1, characterized in that: The guide roller 1 (5) and guide roller 2 (7) are mounted on the fabric-laying frame (1) via a suspended spherical bearing.

8. The fabric distribution mechanism according to claim 1, characterized in that: The opening roller (6) is mounted on the fabric laying stand (1) via an open round flange guide shaft support.

Images