A cloth pre-flattening low-tension unwinding device

Abstract

The utility model discloses a kind of cloth laying machine pre-flattening low tension unwinding device, including rack, feeding seat, unwinding mechanism, front display conveyor belt, loading guide mechanism, tension adjusting roller and steering connecting roller, the feeding seat is installed in the rack front, the feeding seat is equipped with unwinding table, the unwinding mechanism includes two unwinding frames, the inner side of two unwinding frames is oppositely arranged two cloth roll chuck, one is short-stroke chuck, another is long-stroke chuck, the front display conveyor belt is installed in the rack top end, the loading guide mechanism includes guide plate and guide cylinder, the guide plate one end rotatably installed in the rear end below of front display conveyor belt, the guide cylinder one end connects the back of guide plate, the other end is connected with the rack, the outside of guide plate is installed the tension adjusting roller, the steering connecting roller is installed in the rear part of rack. By the above mode, the utility model can save manual labor time when laying cloth, while improving the laying quality.

Description

Technical Field

[0001] This utility model relates to the field of fabric processing equipment, and in particular to a pre-flattening and low-tension unwinding device for a fabric spreading machine. Background Technology

[0002] Before use, automotive interior and seat fabrics need to be laid out and cut. Traditionally, laying out and cutting are done by hand. However, with the continuous development of technology, manual operation can no longer meet the needs of mass production. The manual method of laying out fabric is gradually being replaced by automatic fabric laying machines. Currently, commonly used automatic fabric spreading machines generally include an unwinding mechanism, a spreading head, and a spreading table. The spreading head drives the unwound fabric to reciprocate and cut on the spreading table to complete the entire spreading process. During this process, after the fabric roll is unwound, a tension adjusting roller is usually set between the spreading table and the unwinding mechanism. The tension adjusting roller is used to keep the fabric in a taut state. This taut state reduces the impact of the unwinding action and prevents the fabric from wrinkling. However, this taut state will cause the overall tension of the fabric to be too high and generally uneven in all directions. After being flattened and cut, the fabric will have obvious deformation problems in all directions. When the spreading head pulls the fabric, the local tension between it and the fabric is too high, which will cause deformation on the one hand and damage to the internal structure on the other hand. It is especially unsuitable for processing relatively thin and low-strength fabrics. In addition, due to the large width of the fabric roll, existing automatic fabric spreading machines require at least two people to pull the fabric from both sides of the spreading machine to complete the preparation work before starting the spreading process. Utility Model Content

[0003] The main technical problem solved by this utility model is to provide a pre-flattening and low-tension unwinding device for a fabric laying machine, which can reduce the amount of deformation during fabric laying and cutting, and facilitate single-person operation during production.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A pre-flattening low-tension unwinding device for a fabric spreading machine is provided. This device is positioned in front of the fabric spreading device of the fabric spreading machine. The device includes a frame, a feeding seat, an unwinding mechanism, a front spreading conveyor belt, a loading guide mechanism, a tension adjusting roller, and a steering connecting roller. The feeding seat is installed directly in front of the frame, and an unwinding platform is provided on the feeding seat. The unwinding mechanism includes two unwinding frames mounted opposite each other on the unwinding platform, relying on the frame. Two fabric roll chucks are arranged opposite each other on the inner sides of the two unwinding frames. One fabric roll chuck is a short-stroke chuck, and the other is a long-stroke chuck. A horizontal drive cylinder is installed inside the frame, capable of driving the long-stroke chuck to reciprocate horizontally. The stroke chuck and the short stroke chuck together form an automatic unwinding position. The front unfolding conveyor belt is installed at the top of the frame with a front-high and rear-low shape. The loading guide mechanism includes a guide plate and a guide cylinder. The width of the guide plate matches the distance between the frame and the rear fabric laying device. One end of the guide plate is rotatably installed below the rear end of the front unfolding conveyor belt. One end of the guide cylinder is connected to the back of the guide plate, and the other end is connected to the frame. Two hinge seats are symmetrically arranged in the middle of the outer side of the guide plate. A hinge rod is installed on each hinge seat. The tension adjusting roller is installed between the two hinge rods. A turning connecting roller seat is also installed at the rear of the frame, flush with the top of the fabric laying device. The turning connecting roller is installed in the turning connecting roller seat and is located close to the rear fabric laying device.

[0005] In a preferred embodiment of the present invention, the angle between the front conveyor belt and the horizontal plane is 10~30°, and a pressure roller is also installed at the tail end of the front conveyor belt.

[0006] In a preferred embodiment of this utility model, a recovery motor is installed on the unwinding frame where the short-stroke chuck is located, and the recovery motor can drive the short-stroke chuck to rotate.

[0007] In a preferred embodiment of this utility model, a set of manual unwinding frames is symmetrically arranged on the unwinding frame, and a reinforcing roll is placed on the manual unwinding frame.

[0008] In a preferred embodiment of this utility model, two sets of unwinding action control buttons with the same function are symmetrically arranged on both sides of the frame.

[0009] In a preferred embodiment of the present invention, the unwinding table consists of two recessed plates, one of which can be moved according to the length of the fabric roll.

[0010] The beneficial effects of this utility model are as follows: This utility model is an optimization of the unwinding device of the existing automatic fabric spreading machine. By pre-flattening the fabric between the tension adjusting rollers after unwinding, the fabric surface is subjected to uniform force in all directions when the tension adjusting rollers press down. When entering the conveyor belt in the subsequent steps, the fabric has good adhesion to the conveyor belt surface and relatively high friction. By controlling the relative movement speed between the conveyor belt and the machine head through computer, the friction can be used to meet the purpose of fabric conveying, thereby reducing the impact of the tension on the fabric when the machine head drives the fabric. This significantly reduces the internal tension of the fabric during spreading, and the overall deformation during the final cutting is significantly reduced. Moreover, it can meet the process requirements of spreading and cutting low-strength, lightweight fabrics. In addition, this utility model also includes an auxiliary guiding mechanism, so that only one person is needed to complete all the loading actions on site before the equipment is started, effectively saving labor time and reducing the overall operation difficulty. Attached Figure Description

[0011] Figure 1 This is a front view schematic diagram of the three-dimensional structure of a preferred embodiment of the present invention;

[0012] Figure 2 This is a schematic diagram of the rear view of the embodiment shown;

[0013] The components in the attached diagram are labeled as follows:

[0014] 1. Frame, 2. Feeding seat, 3. Unwinding table, 4. Unwinding shaft, 5. Unwinding frame, 6. Fabric roll clamp, 7. Recycle motor, 8. Manual unwinding position, 9. Guide cylinder, 10. Tension adjusting roller, 11. Steering connecting roller, 12. Forward conveyor belt, 13. Pressure roller, 14. Guide plate, 15. Horizontal drive cylinder, 16. Unwinding action control button. Detailed Implementation

[0015] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0016] Please see Figure 1 and Figure 2 The embodiments of this utility model include:

[0017] A pre-flattening and low-tension unwinding device for a fabric spreading machine is provided. The pre-flattening and low-tension unwinding device is located in front of the fabric spreading device of the fabric spreading machine. The pre-flattening and low-tension unwinding device includes a frame 1, a feeding seat 2, an unwinding mechanism, a front spreading conveyor belt 12, a material loading guide mechanism, a tension adjusting roller 10, and a steering connecting roller 11. The feeding seat 2 is installed in front of the frame 1. The feeding seat 2 is provided with an unwinding platform 3. The unwinding platform 3 consists of two platforms with recessed tops. One of the platforms can move laterally according to the length of the fabric roll. This allows the position of the movable platform to be adjusted according to the length of the fabric roll when placing it, so that the fabric roll can be placed stably on the unwinding platform 3. The unwinding mechanism includes two unwinding frames 5 mounted opposite each other on the unwinding table 3, relying on the frame 1. Two fabric roll chucks 6 are arranged opposite each other on the inner sides of the two unwinding frames 5, one of which is a short-stroke chuck and the other a long-stroke chuck. A horizontal drive cylinder 15 is installed inside the frame 1, capable of driving the long-stroke chuck to reciprocate horizontally. The long-stroke chuck and the short-stroke chuck together form an automatic unwinding position. The front-mounted conveyor belt 12 is mounted at the top of the frame 1 in a front-high-rear-low configuration. The loading guide mechanism includes a guide plate 14 and a guide cylinder 9. The width of the guide plate 9 is... The distance between the frame 1 and the rear fabric laying device is matched. One end of the guide plate 14 is rotatably mounted below the rear end of the front conveyor belt 12. One end of the guide cylinder 9 is connected to the back of the guide plate 14, and the other end is connected to the frame 1. Two hinge seats are symmetrically arranged in the middle of the outer side of the guide plate 14. A hinge rod is installed on each hinge seat. The tension adjusting roller 10 is installed between the two hinge rods. A steering connecting roller seat is also installed at the rear of the frame 1 at the same level as the top of the fabric laying device. The steering connecting roller 11 is installed in the steering connecting roller seat and is located close to the rear fabric laying device.

[0018] The angle between the front unfolding conveyor belt 12 and the horizontal plane is 10~30°, and a pressure roller 13 is also installed at the tail end of the front unfolding conveyor belt 12. The inclined state of the front unfolding conveyor belt 12 can facilitate the unwound fabric to be flattened along the inclined surface of the conveyor belt. Since it has been pre-flattened, it does not require much tension to ensure the overall flatness of the fabric during the subsequent process of being transported by the conveyor belt of the fabric spreading device to the head of the fabric spreading machine. In this way, the overall tension of the fabric during the fabric spreading can be effectively reduced, so that the fabric is not too tight, thereby reducing the amount of deformation during subsequent cutting processes. Moreover, it can meet the needs of spreading and cutting some special fabrics with low strength and light weight. The main function of the pressure roller 13 is to assist in pressing the material surface when the low-weight fabric passes through.

[0019] A recovery motor 7 is installed on the unwinding rack 5 where the short-stroke chuck is located. The recovery motor 7 can drive the short-stroke chuck to rotate. In this way, if there is still residual fabric on the machine after the production task is completed, the recovery motor 7 can be started to recover the residual fabric.

[0020] The unwinding frame 5 is also symmetrically provided with a manual unwinding position 8, on which an unwinding shaft 4 is placed. The purpose of providing the unwinding shaft 4 is that if the central axis of the fabric roll is not strong enough, the automatic unwinding position cannot be used, and the unwinding shaft 4 needs to be inserted into the central axis of the fabric roll to reinforce the central axis before unwinding.

[0021] Two sets of unwinding control buttons 16 with the same function are symmetrically arranged on both sides of the frame 1. In this way, on-site personnel can control the unwinding mechanism from both sides, which can effectively reduce reaction time and minimize losses when an emergency stop is required.

[0022] In practical use, the flattening conveyor belt 12 can pre-flatten the fabric before it passes through the tension adjusting roller 10. This ensures more uniform force on the fabric as it passes through the tension adjusting roller 10, reducing localized tightness caused by tension issues and improving the fit between the fabric and the subsequent fabric spreading conveyor belt. This increases friction between the flattening and spreading conveyor belts and the fabric, significantly reducing the direct force exerted by the fabric head when pulling it forward. This results in more uniform and stable internal force on the fabric, leading to less overall deformation and greater pattern stability during final cutting. Furthermore, this invention includes a material loading guide mechanism composed of guide plates 14. This allows only one operator to complete all actions during the loading process, whereas traditional fabric spreading machines require at least two people to simultaneously pull up the fabric edges from both sides to complete the loading step.

[0023] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A pre-flattening low-tension unwinding device for a fabric laying machine, wherein the pre-flattening low-tension unwinding device is arranged in front of the fabric laying device of the fabric laying machine, characterized in that, The pre-unwinding and low-tension unwinding device of the fabric spreading machine includes a frame, a feeding seat, an unwinding mechanism, a front unfolding conveyor belt, a material loading guide mechanism, a tension adjusting roller, and a steering connecting roller. The feeding seat is installed directly in front of the frame and has an unwinding platform. The unwinding mechanism includes two unwinding frames mounted opposite each other on the unwinding platform, relying on the frame. Two fabric roll chucks are arranged opposite each other on the inner sides of the two unwinding frames. One fabric roll chuck is a short-stroke chuck, and the other is a long-stroke chuck. A horizontal drive cylinder is installed inside the frame, which can drive the long-stroke chuck to reciprocate horizontally. The long-stroke chuck and the short-stroke chuck together form an automatic unwinding position. The front unfolding conveyor belt is generally shaped with a higher front and a lower back. The loading guide mechanism, which is mounted on the top of the frame, includes a guide plate and a guide cylinder. The width of the guide plate matches the distance between the frame and the rear fabric laying device. One end of the guide plate is rotatably mounted below the rear end of the front conveyor belt. One end of the guide cylinder is connected to the back of the guide plate, and the other end is connected to the frame. Two hinge seats are symmetrically arranged on the outer center of the guide plate, and a hinge rod is installed on each hinge seat. The tension adjusting roller is installed between the two hinge rods. A steering connecting roller seat is also installed at the rear of the frame, flush with the top of the fabric laying device. The steering connecting roller is installed in the steering connecting roller seat and is located close to the rear fabric laying device.

2. The pre-flattening and low-tension unwinding device for a fabric spreading machine according to claim 1, characterized in that, The angle between the front conveyor belt and the horizontal plane is 10~30°, and a pressure roller is also installed at the tail end of the front conveyor belt.

3. The pre-flattening and low-tension unwinding device for a fabric spreading machine according to claim 1, characterized in that, A recovery motor is installed on the unwinding frame where the short-stroke chuck is located, and the recovery motor can drive the short-stroke chuck to rotate.

4. The pre-flattening and low-tension unwinding device for a fabric spreading machine according to claim 1, characterized in that, A set of manual unwinding frames is also symmetrically arranged on the unwinding frame, and a reinforcing roll is placed on the manual unwinding frame.

5. The pre-flattening and low-tension unwinding device for a fabric spreading machine according to claim 1, characterized in that, Two sets of unwinding control buttons with the same function are symmetrically arranged on both sides of the frame.

6. The pre-flattening and low-tension unwinding device for a fabric spreading machine according to claim 1, characterized in that, The unwinding table consists of two recessed plates, one of which can move according to the length of the fabric roll.

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