Fabric constant-tension bidirectional winding and cropping integrated device

Abstract

The constant-tension bidirectional fabric rolling and cropping integrated device comprises a guide rail, a first rolling frame and a second rolling frame are fixedly connected to the guide rail, and a first pressing arm assembly and a second pressing arm assembly are arranged on the sides, away from each other, of the first rolling frame and the second rolling frame correspondingly; two moving frames corresponding to the first pressing arm assembly and the second pressing arm assembly respectively are connected to the guide rail in a rolling mode, and cloth rollers and cloth motors driving the cloth rollers to rotate are arranged on the moving frames. A fabric conversion assembly is arranged between the first cloth rolling frame and the second cloth rolling frame, a tension control assembly is arranged at the position, located above the first pressing arm assembly, of the first cloth rolling frame, and a cloth falling mechanism is arranged at the position, located above the second pressing arm assembly, of the second cloth rolling frame. The cloth rolling and cropping integrated machine has the advantages that a cloth rolling structure and a cloth cropping structure are integrated, different working states of cloth rolling and cropping of fabric can be freely switched, the operation cost is reduced, and the working efficiency and the fabric rolling quality are improved.

Description

Technical Field

[0001] The invention relates to a cloth rolling and dropping device, in particular to a bidirectional cloth rolling and dropping integrated device with constant tension of fabric. Background Art

[0002] During the production process, the fabric needs to be collected. The general collection method is to collect it on the cloth roll or place it in the cloth drop trough for subsequent fabric sorting. At present, the fabric reeling mechanism and cloth drop mechanism are generally two separate mechanisms that are not related to each other, occupying a large area and having high equipment costs.

[0003] For the fabric winding mechanism, during the winding process, the winding tension on the fabric surface has a great influence on the fabric winding quality. During the fabric winding process, the roll diameter gradually increases, and its change is nonlinear. If the fabric is wound at the same winding speed, its tension will definitely increase with the gradual increase in the roll diameter. The gradual increase in tension will cause the winding to be too tight, resulting in uneven winding at the edge of the fabric or even a narrowing of the width. The existing tension control only sets a winding motor on the winding roller to actively wind up to control the fabric tension. The fabric tension control in the early transmission process is not perfect, resulting in the later stage relying solely on the winding motor for constant tension control, and the control stability is poor, affecting the quality of the wound fabric.

[0004] Moreover, the fabric winding mechanism generally only has one winding frame. During the winding process, when the winding roller on the winding frame is full, the entire equipment needs to be stopped first, the full winding roller must be removed from the winding frame, and then the empty cloth rolling roller must be installed on the winding frame before subsequent winding work can be carried out. This process wastes time, and automatic and continuous work cannot be achieved, which greatly reduces work efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a fabric constant tension bidirectional winding and dropping integrated device. The present invention has the characteristics of integrating the cloth rolling structure and the cloth dropping structure, freely switching between different working states of fabric rolling and cloth dropping, reducing operating costs, and improving work efficiency and fabric winding quality.

[0006] The technical solution of the present invention is as follows: a constant-tension bidirectional fabric winding and dropping integrated device comprises a guide rail, a first cloth rolling rack and a second cloth rolling rack are fixedly connected to the guide rail, a first pressure arm assembly and a second pressure arm assembly are respectively provided on the sides of the first cloth rolling rack and the second cloth rolling rack which are away from each other, two mobile racks which are respectively corresponding to the first pressure arm assembly and the second pressure arm assembly are rollingly connected to the guide rail, a cloth rolling roller and a cloth rolling motor for driving the cloth rolling roller to rotate are provided on the mobile rack; a fabric conversion assembly is provided between the first cloth rolling rack and the second cloth rolling rack, a tension control assembly is provided on the first cloth rolling rack above the first pressure arm assembly, and a cloth dropping mechanism is provided on the second cloth rolling rack above the second pressure arm assembly.

[0007] In the aforementioned fabric constant tension bidirectional winding and dropping integrated device, the cloth winding roller includes a roller shaft, both ends of the roller shaft are provided with rotating gears driven by a cloth winding motor, a roller is sleeved on the roller shaft, positioning sleeves are provided on both sides of the roller, and guide grooves are provided on the surface of the roller along the length direction. The positioning sleeves are installed on the roller by connecting with the guide grooves through positioning bolts, and compression springs are provided on the opposite sides of the two positioning sleeves, and a limiting sleeve sleeved on the roller is provided on the compression spring.

[0008] In the aforementioned fabric constant tension bidirectional winding and cloth dropping integrated device, the tension control component includes a first transmission motor, a first tension detection roller and a transmission guide roller; the first transmission motor is connected to the first transmission roller via a frequency converter, and the first tension detection roller is electrically connected to the fabric conversion component and the cloth dropping mechanism respectively via a controller, and the fabric is sequentially transmitted to the fabric conversion component or the cloth dropping mechanism through the first transmission roller, the first tension detection roller and the transmission guide roller.

[0009] In the aforementioned fabric constant tension bidirectional winding and cloth dropping integrated device, the fabric conversion assembly includes a second transmission motor and a second tension detection roller arranged in sequence longitudinally, the second transmission motor is connected to the second transmission roller via a frequency converter, the second transmission motor is electrically connected to the controller, the second tension detection roller is electrically connected to the cloth winding motor via the controller, and the fabric is transmitted to the first pressure arm assembly or the second pressure arm assembly through the second transmission roller and the second tension detection roller.

[0010] In the aforementioned fabric constant tension bidirectional winding and dropping integrated device, the first tension detection roller and the second tension detection roller both include a cloth guide roller, support seats are provided at both ends of the cloth guide roller, a U-shaped groove is provided on the support seat for placing the cloth guide roller, a pressure sensor is provided at the bottom of the U-shaped groove, and the sensing head of the pressure sensor contacts and senses the bottom of the cloth guide roller.

[0011] In the aforementioned fabric constant tension bidirectional winding and dropping integrated device, the first pressing arm assembly and the second pressing arm assembly each include an arm body with one end rotatably connected to the first cloth rolling rack or the second cloth rolling rack, the first cloth rolling rack and the second cloth rolling rack are both provided with a driving cylinder for driving the arm body to rotate, and the free end of the arm body is provided with a pressing roller and a cloth cutting mechanism.

[0012] In the aforementioned fabric constant tension bidirectional winding and dropping integrated device, the cloth cutting mechanism includes a linear module distributed along the length direction of the pressure roller, and a cloth cutting knife is slidably connected to the linear module. Both ends of the linear module are connected to one end of the first connecting rod through an adapter seat, and the other ends of the two first connecting rods are connected via a synchronous shaft, and a synchronous motor is provided on the synchronous shaft to drive the synchronous shaft to rotate.

[0013] In the aforementioned fabric constant tension bidirectional winding and dropping integrated device, a connecting frame is provided between the first cloth rolling frame and the second cloth rolling frame, a rack is passed through the interior of the connecting frame, the rack is slidably connected to the connecting frame, the two ends of the rack are respectively fixedly connected to the two moving frames, a driving gear is meshed on the rack, and the driving gear is driven to rotate by an active motor.

[0014] In the aforementioned fabric constant tension bidirectional winding and cloth dropping integrated device, the cloth dropping mechanism includes a cloth dropping rack, and the cloth dropping rack is provided with a cloth dropping guide roller, a third transmission roller and a swing arm in sequence along the fabric conveying direction, the third transmission roller is provided with a third transmission motor electrically connected to the controller, the upper end of the swing arm is rotatably connected to the cloth dropping rack, the lower end of the swing arm is provided with a pair of cloth dropping rollers, and the cloth dropping rack is provided with a swinging mechanism for driving the swing arm to swing.

[0015] In the aforementioned fabric constant tension bidirectional winding and cloth dropping integrated device, the swing mechanism includes a swing motor, a swing driving wheel is provided on the output shaft of the swing motor, a second connecting rod is provided on the swing driving wheel, a third connecting rod is hinged at the outer end of the second connecting rod, and the other end of the third connecting rod is hinged to the swing arm.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] When cloth rolling operation is required, the fabric is successively wound onto the first pressing arm assembly or the second pressing arm assembly through the tension control assembly and the fabric conversion assembly, and then wound onto the cloth rolling roller on the movable frame. The cloth rolling roller actively rolls up the fabric under the action of the cloth rolling motor. Through the cooperation of the tension control assembly, the fabric conversion assembly and the cloth rolling motor, the conveying tension and the winding tension of the fabric are adjusted in real time, thereby ensuring that while the rolling diameter of the cloth is gradually increased, the conveying tension and the winding line speed of the fabric remain constant, thereby achieving the effect of stably winding the fabric.

[0018] When the cloth roller on one of the mobile racks is full, the fabric is transferred to the cloth roller on the other mobile rack through the fabric conversion assembly to continue winding the fabric, and the full cloth roller can be separated from the pressure arm assembly for unloading. The two do not interfere with each other, thereby avoiding shutdown operation when the cloth roller is full and transferring, and improving fabric winding efficiency.

[0019] When the cloth dropping operation is required, the fabric is guided to the cloth dropping mechanism through the tension control component, and the fabric is folded and enters the cloth dropping groove through the guiding effect of the cloth dropping mechanism.

[0020] Therefore, the present invention integrates the cloth rolling structure and the cloth dropping structure into one, and can freely switch between different working states of fabric rolling and cloth dropping, and realizes multiple functions such as constant tension and fast cloth rolling switching during the cloth rolling process, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 It is a structural schematic diagram of a cloth winding roller.

[0023] Figure 3 It is a structural schematic diagram of the first tension detection roller.

[0024] Figure 4 It is a structural diagram of the cloth cutting mechanism.

[0025] Figure 5 It is a schematic diagram of the connection structure of two mobile racks.

[0026] Figure 6 It is a structural diagram of the cloth dropping mechanism.

[0027] The marks in the attached drawings are: 1, guide rail; 2, first cloth rolling frame; 21, first pressure arm assembly; 3, second cloth rolling frame; 31, second pressure arm assembly; 32, arm body; 33, driving cylinder; 34, pressure roller; 35, cloth cutting mechanism; 351, linear module; 352, cloth cutting knife; 353, first connecting rod; 354, synchronous shaft; 355, synchronous motor; 4, moving frame; 41, cloth rolling roller; 411, roller shaft; 412, rotating gear; 413, roller; 414, positioning sleeve; 415, guide groove; 416, compression spring; 417, limiting sleeve; 42, cloth rolling motor; 43, connecting frame; 44, rack; 45 , driving gear; 46, driving motor; 5, fabric conversion assembly; 51, second transmission motor; 52, second tension detection roller; 53, second transmission roller; 6, tension control assembly; 61, first transmission motor; 62, first tension detection roller; 63, transmission guide roller; 64, first transmission roller; 7, cloth dropping mechanism; 71, cloth dropping rack; 72, cloth dropping guide roller; 73, third transmission roller; 74, swing arm; 75, third transmission motor; 76, cloth dropping roller; 77, swing driving wheel; 78, second connecting rod; 79, third connecting rod; 81, cloth guide roller; 82, support seat; 83, U-shaped groove; 84, pressure sensor. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the embodiments, but they are not intended to limit the present invention.

[0029] Example:

[0030] like Figure 1-Figure 6 As shown, a constant tension bidirectional cloth winding and dropping integrated device for fabrics comprises a guide rail 1, to which a first cloth rolling frame 2 and a second cloth rolling frame 3 are fixedly connected, and a first pressing arm assembly 21 and a second pressing arm assembly 31 are respectively provided on the sides of the first cloth rolling frame 2 and the second cloth rolling frame 3 which are away from each other, and two moving frames 4 which respectively correspond to the first pressing arm assembly 21 and the second pressing arm assembly 31 are rollingly connected to the guide rail 1, and a cloth rolling roller 41 and a cloth rolling motor 42 for driving the cloth rolling roller 41 to rotate are provided on the moving frame 4; a fabric conversion assembly 5 is provided between the first cloth rolling frame 2 and the second cloth rolling frame 3, a tension control assembly 6 is provided on the first cloth rolling frame 2 and located above the first pressing arm assembly 21, and a cloth dropping mechanism 7 is provided on the second cloth rolling frame 3 and located above the second pressing arm assembly 31.

[0031] When cloth rolling operation is required, the fabric is successively wound onto the first pressure arm assembly 21 or the second pressure arm assembly 31 through the tension control assembly 6 and the fabric conversion assembly 5, and then wound onto the cloth rolling roller 41 on the movable frame 4. The cloth rolling roller 41 actively rolls up the fabric under the action of the cloth rolling motor 42. Through the cooperation of the tension control assembly 6, the fabric conversion assembly 5 and the cloth rolling motor 42, the conveying tension and the winding tension of the fabric are adjusted in real time, thereby ensuring that while the rolling diameter of the cloth is gradually increased, the conveying tension and the winding line speed of the fabric remain constant, thereby achieving the effect of stably winding up the fabric.

[0032] When the cloth winding roller 41 on one of the movable frames 4 is fully rolled, the fabric is transferred to the cloth winding roller 41 on the other movable frame 4 through the fabric conversion assembly 5 to continue winding the fabric, and the fully rolled cloth winding roller 41 can be separated from the pressure arm assembly for unloading operation, and the two do not interfere with each other, thereby avoiding the shutdown operation when the cloth winding roller 41 is fully rolled and transferring, thereby improving the fabric winding efficiency.

[0033] When a cloth dropping operation is required, the fabric is guided to the cloth dropping mechanism 7 through the tension control component 6, and the fabric is folded and enters the cloth dropping groove through the guiding effect of the cloth dropping mechanism 7.

[0034] Therefore, the present invention integrates the cloth rolling structure and the cloth dropping structure into one, and can freely switch between different working states of fabric rolling and cloth dropping, and realizes multiple functions such as constant tension and fast cloth rolling switching during the cloth rolling process, thereby improving work efficiency.

[0035] The cloth rolling roller 41 comprises a roller shaft 411, and rotating gears 412 driven by a cloth rolling motor 42 are arranged at both ends of the roller shaft 411, and a roller 413 is sleeved on the roller shaft 411, and positioning sleeves 414 are arranged on both sides of the roller 413, and a guide groove 415 is arranged on the surface of the roller 413 along the length direction, and the positioning sleeve 414 is installed on the roller 413 by connecting with the guide groove 415 through positioning bolts, and a compression spring 416 is arranged on the opposite side of the two positioning sleeves 414, and a limiting sleeve 417 sleeved on the roller 413 is arranged on the compression spring 416. The cloth rolling roller 41 is driven by the cloth rolling motor 42 through the rotating gear 412, so as to realize active winding of the fabric, and the rotation speed of the cloth rolling motor 42 is adjusted according to the increase in the diameter of the wound fabric and the detected tension, so as to adjust the linear speed of the fabric winding to be consistent, so as to realize the purpose of stable cloth winding and excellent fabric quality. A positioning sleeve 414 is provided on the roller 413 and can move along the guide groove 415, so that the actual cloth width of the cloth rolling roller 41 can be adjusted to adapt to cloths of different sizes; the positioning sleeve 414 is connected to the limiting sleeve 417 through the compression spring 416, and the limiting and pressing effect of the limiting sleeve 417 is utilized to ensure that the two sides of the fabric are flush when the cloth rolling roller 41 rolls the fabric, so that the fabric rolls more neatly and avoids deviation during the winding process. The roller shaft 411 is also provided with a detector for detecting the deformation degree of the compression spring 416. If the deformation degree of the compression spring 416 changes suddenly with the increase of the winding diameter, it indicates that the fabric width becomes narrower or wider, and an alarm is promptly processed.

[0036] The tension control assembly 6 includes a first transmission motor 61, a first tension detection roller 62 and a transmission guide roller 63; the first transmission motor 61 is connected to the first transmission roller 64 via a frequency converter, and the first tension detection roller 62 is electrically connected to the fabric conversion assembly 5 and the cloth dropping mechanism 7 via a controller, respectively. The fabric passes through the first transmission roller 64, the first tension detection roller 62 and the transmission guide roller 63 in sequence and is transmitted to the fabric conversion assembly 5 or the cloth dropping mechanism 7. The first transmission motor 61 drives the first transmission roller 64 to rotate and convey the fabric, and the first tension detection roller 62 detects the tension of the fabric passing therein in real time. According to the detected tension tightness, the transmission motor in the fabric conversion assembly 5 and the cloth dropping mechanism 7 is timely controlled by the controller to adjust the conveying speed of the fabric, thereby adjusting the tension of the fabric, ensuring that the tension of the overall fabric conveying is constant, avoiding the occurrence of an overly loose or overly tight state, and improving the fabric winding quality; through the guiding effect of the transmission guide roller 63, according to the fabric rolling or cloth dropping requirements, the fabric can be respectively transmitted to the fabric conversion assembly 5 or the cloth dropping mechanism 7 for different operations, and the reversing operation is convenient and flexible.

[0037] The fabric conversion assembly 5 includes a second transmission motor 51 and a second tension detection roller 52 which are arranged in sequence in the longitudinal direction. The second transmission motor 51 is connected to a second transmission roller 53 via a frequency converter. The second transmission motor 51 is electrically connected to a controller. The second tension detection roller 52 is electrically connected to a cloth rolling motor 42 via a controller. The fabric is transmitted to the first pressing arm assembly 21 or the second pressing arm assembly 31 via the second transmission roller 53 and the second tension detection roller 52. According to the fabric tension detected in real time by the first tension detection roller 62, the conveying speed and tension of the fabric are adjusted by the second transmission motor 51. According to the fabric tension detected in real time by the second tension detection roller 52, the winding speed and tension of the fabric are adjusted by the cloth rolling motor 42, so as to ensure that the tension of the fabric is constant and the linear speed is stable during conveying and rolling. The second tension detection roller 52 can not only be used to detect the tension of the fabric, but also play a guiding role in different conveying directions of the fabric. By bypassing the second tension detection roller 52 in different directions, the fabric is respectively guided to the first pressing arm assembly 21 and the second pressing arm assembly 31, so as to realize the free switching of rolling on different moving frames 4 without stopping the machine, thereby improving the cloth rolling efficiency.

[0038] The first tension detection roller 62 and the second tension detection roller 52 both include a cloth guide roller 81, and support seats 82 are provided at both ends of the cloth guide roller 81. The support seats 82 are provided with a U-shaped groove 83 for placing the cloth guide roller 81, and a pressure sensor 84 is provided at the bottom of the U-shaped groove 83. The sensing head of the pressure sensor 84 contacts and senses the bottom of the cloth guide roller 81. The support seats 82 cooperate with the pressure sensor 84 to sense the pressure of the fabric when it bypasses the first tension detection roller 62 and the second tension detection roller 52, and the pressure is converted into the tension of the fabric, so that the detection is convenient, stable and accurate.

[0039] The first pressing arm assembly 21 and the second pressing arm assembly 31 each include an arm body 32 with one end rotatably connected to the first cloth rolling frame 2 or the second cloth rolling frame 3. The first cloth rolling frame 2 and the second cloth rolling frame 3 are both provided with a driving cylinder 33 for driving the arm body 32 to rotate. The free end of the arm body 32 is provided with a pressing roller 34 and a cloth cutting mechanism 35. The driving cylinder 33 drives the pressing roller 34 on the arm body 32 to press tightly against the cloth surface of the cloth rolling roller 41, so that the fabric is tightly wound on the cloth rolling roller 41; when the cloth rolling roller 41 needs to be removed, the cloth is cut by the cloth cutting mechanism, and then the driving cylinder 33 lifts the pressing roller 34 upward to separate it from the cloth surface, thereby facilitating the unloading of the cloth rolling roller 41.

[0040] The cloth cutting mechanism 35 includes a linear module 351 distributed along the length direction of the pressure roller 34, a cloth cutting knife 352 is slidably connected to the linear module 351, and both ends of the linear module 351 are connected to one end of a first connecting rod 353 through a transfer seat, and the other ends of the two first connecting rods 353 are connected through a synchronous shaft 354, and a synchronous motor 355 is provided on the synchronous shaft 354 to drive the synchronous shaft 354 to rotate. When the pressure roller 34 is pressed against the cloth surface to roll the cloth, the cloth cutting knife 352 is driven by the synchronous motor 355 and the synchronous shaft 354 to move away from the cloth surface; when the fabric needs to be cut, the cloth cutting knife 352 is driven by the synchronous motor 355 and the synchronous shaft 354 to contact the fabric surface, and then moves along the width direction of the fabric through the linear module 351 to cut the fabric.

[0041] A connecting frame 43 is provided between the first cloth rolling frame 2 and the second cloth rolling frame 3. A rack 44 is provided inside the connecting frame 43. The rack 44 is slidably connected to the connecting frame 43. The two ends of the rack 44 are respectively fixedly connected to the two moving frames 4. A driving gear 45 is meshed on the rack 44. The driving gear 45 is driven to rotate by the driving motor 46. The connecting frame 43 not only improves the strength and stability of the first cloth rolling frame 2 and the second cloth rolling frame 3, but also guides the movement of the rack 44. The driving gear 45 is driven to rotate by the driving motor 46, and the driving gear 45 drives the rack 44 to move, thereby driving the two moving frames 4 to move. When the cloth rolling roller 41 on one of the moving frames 4 is fully rolled and transferred to the unloading station, the other moving frame 4 equipped with an empty cloth rolling roller 41 just moves to the rolling station of the pressing arm assembly to perform cloth rolling operation.

[0042] The cloth dropping mechanism 7 comprises a cloth dropping frame 71, on which a cloth dropping guide roller 72, a third transmission roller 73 and a swing arm 74 are sequentially arranged along the fabric conveying direction. The third transmission roller 73 is provided with a third transmission motor 75 electrically connected to the controller. The upper end of the swing arm 74 is rotatably connected to the cloth dropping frame 71, and a pair of cloth dropping rollers 76 are arranged at the lower end of the swing arm 74. The cloth dropping frame 71 is provided with a swing mechanism for driving the swing arm 74 to swing. When the cloth dropping operation is performed, the fabric is guided to the cloth dropping guide roller 72 via the transmission guide roller 63, and then guided to the cloth dropping roller 76 via the third transmission roller 73, and finally falls. According to the fabric tension detected by the first tension detection roller 62 on the tension control assembly 6, the rotation speed of the third transmission motor 75 is adjusted to ensure constant tension during the fabric conveying process. At the same time, the swing arm 74 is driven to swing back and forth through the swing mechanism, driving the fabric to bend back and forth and stack in the cloth dropping groove.

[0043] The swing mechanism includes a swing motor, a swing driving wheel 77 is provided on the output shaft of the swing motor, a second connecting rod 78 is provided on the swing driving wheel 77, a third connecting rod 79 is hinged to the outer end of the second connecting rod 78, and the other end of the third connecting rod 79 is hinged to the swing arm 74. The swing driving wheel 77 is driven by the swing motor to rotate, the swing driving wheel 77 drives the second connecting rod 78 to rotate, and the second connecting rod 78 and the third connecting rod 79 drive the swing arm 74 to swing back and forth, so that the fabric passing through the cloth drop roller 76 is folded back and forth and falls into the cloth drop groove; by adjusting the rotation speed of the swing motor and the swing amplitude of the swing arm 74, the folding width of the cloth drop is adjusted, and it is suitable for cloth drop grooves of different sizes to meet the requirements of different cloth folding sizes.

[0044] Working process: when it is necessary to roll up the fabric, the fabric is firstly rolled up onto the first pressing arm assembly 21 through the tension control assembly 6 and the fabric conversion assembly 5, and then rolled up onto the fabric rolling roller 41 on the movable frame 4 corresponding to the first pressing arm assembly 21. The fabric rolling roller 41 actively rolls up the fabric under the action of the fabric rolling motor 42, and at the same time, the pressing roller 34 on the first pressing arm assembly 21 presses the fabric surface; according to the fabric tension detected by the first tension detection roller 62 on the tension control assembly 6, the speed of the second transmission motor 51 in the fabric conversion assembly 5 is adjusted, and according to the fabric tension detected by the second tension detection roller 52 in the fabric conversion assembly 5, the speed of the fabric rolling motor 42 is adjusted, that is, through the cooperation of the tension control assembly 6, the fabric conversion assembly 5 and the fabric rolling motor 42, the conveying tension and the winding tension of the fabric are adjusted in real time, so as to ensure that the conveying tension and the winding line speed of the fabric are kept constant while the rolling diameter of the rolled fabric is gradually increased, thereby achieving the effect of stably winding up the fabric.

[0045] When the cloth roller 41 on the movable frame 4 corresponding to the first pressing arm assembly 21 is fully rolled, the cloth cutting knife 352 on the first pressing arm assembly 21 is brought into contact with the cloth surface, and then the cloth cutting knife 352 is driven by the linear module 351 to move along the cloth width of the fabric to cut the fabric; after the cutting is completed, the first pressing arm assembly 21 is lifted up and separated from the cloth surface, the active motor 46 drives the active gear 45 to rotate, and the active gear 45 drives the rack 44 to move, thereby driving the movable frame 4 equipped with the full cloth roller 41 to move outward to transfer the full cloth roller 41; at the same time, the movable frame 4 equipped with the empty cloth roller 41 is driven to move toward the side of the second pressing arm assembly 31. After moving into place, the first pressing arm assembly 21 moves downward to press the cloth roller 41, and changes the direction of the fabric through the fabric conversion assembly 5, and transfers the fabric around the second pressing arm assembly 31 to the empty cloth roller 41 on the corresponding movable frame 4 to continue winding the cloth.

[0046] When the cloth dropping operation is required, the fabric is guided to the cloth dropping mechanism 7 through the transmission guide roller 63 in the tension control component 6, and then passes through the cloth dropping guide roller 72, the third transmission roller 73 and the swing arm 74 in sequence to enter the cloth dropping groove. According to the fabric tension detected by the first tension detection roller 62 on the tension control component 6, the speed of the third transmission motor 75 is adjusted to ensure constant tension during the fabric transportation process. The swing arm 74 is driven to swing back and forth by the swing motor, driving the fabric to be bent back and forth and stacked in the cloth dropping groove.

[0047] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. For those skilled in the art, the technical solutions described in the above embodiments can be modified, or some of the technical features therein can be replaced by equivalents; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A fabric constant tension bidirectional winding and dropping integrated device, characterized in that: The invention comprises a guide rail (1), a first cloth rolling frame (2) and a second cloth rolling frame (3) are fixedly connected to the guide rail (1), a first pressing arm assembly (21) and a second pressing arm assembly (31) are respectively provided on the sides of the first cloth rolling frame (2) and the second cloth rolling frame (3) which are away from each other, two moving frames (4) which respectively correspond to the first pressing arm assembly (21) and the second pressing arm assembly (31) are rollingly connected to the guide rail (1), a cloth rolling roller (41) and a cloth rolling motor (42) which drives the cloth rolling roller (41) to rotate are provided on the moving frame (4); a fabric conversion assembly (5) is provided between the first cloth rolling frame (2) and the second cloth rolling frame (3), a tension control assembly (6) is provided on the first cloth rolling frame (2) above the first pressing arm assembly (21), and a cloth dropping mechanism (7) is provided on the second cloth rolling frame (3) above the second pressing arm assembly (31).

2. The constant tension bidirectional fabric winding and dropping device according to claim 1 is characterized by: The cloth rolling roller (41) comprises a roller shaft (411), and rotating gears (412) driven by a cloth rolling motor (42) are arranged at both ends of the roller shaft (411); a roller (413) is sleeved on the roller shaft (411), and positioning sleeves (414) are arranged on both sides of the roller (413); a guide groove (415) is arranged on the surface of the roller (413) along the length direction, and the positioning sleeve (414) is installed on the roller (413) by connecting with the guide groove (415) through positioning bolts; and compression springs (416) are arranged on opposite sides of the two positioning sleeves (414), and a limiting sleeve (417) sleeved on the roller (413) is arranged on the compression spring (416).

3. The constant tension bidirectional fabric winding and dropping device according to claim 1 is characterized in that: The tension control component (6) comprises a first transmission motor (61), a first tension detection roller (62) and a transmission guide roller (63); the first transmission motor (61) is connected to the first transmission roller (64) via a frequency converter, the first tension detection roller (62) is electrically connected to the fabric conversion component (5) and the fabric drop mechanism (7) via a controller, and the fabric is sequentially transmitted to the fabric conversion component (5) or the fabric drop mechanism (7) via the first transmission roller (64), the first tension detection roller (62) and the transmission guide roller (63).

4. The constant tension bidirectional fabric winding and dropping device according to claim 3 is characterized by: The fabric conversion assembly (5) comprises a second transmission motor (51) and a second tension detection roller (52) which are arranged in sequence in the longitudinal direction; the second transmission motor (51) is connected to the second transmission roller (53) via a frequency converter; the second transmission motor (51) is electrically connected to a controller; the second tension detection roller (52) is electrically connected to a cloth rolling motor (42) via the controller; the fabric is transmitted to the first pressing arm assembly (21) or the second pressing arm assembly (31) via the second transmission roller (53) and the second tension detection roller (52).

5. The constant tension bidirectional fabric winding and dropping device according to claim 4 is characterized in that: The first tension detection roller (62) and the second tension detection roller (52) both comprise a cloth guide roller (81), support seats (82) are provided at both ends of the cloth guide roller (81), a U-shaped groove (83) for placing the cloth guide roller (81) is provided on the support seat (82), a pressure sensor (84) is provided at the bottom of the U-shaped groove (83), and a sensing head of the pressure sensor (84) contacts and senses the bottom of the cloth guide roller (81).

6. The constant tension bidirectional fabric winding and dropping device according to claim 1 is characterized in that: The first pressing arm assembly (21) and the second pressing arm assembly (31) both comprise an arm body (32) with one end rotatably connected to the first cloth rolling frame (2) or the second cloth rolling frame (3); the first cloth rolling frame (2) and the second cloth rolling frame (3) are both provided with a driving cylinder (33) for driving the arm body (32) to rotate; and a pressing roller (34) and a cloth cutting mechanism (35) are provided at the free end of the arm body (32).

7. The constant tension bidirectional fabric winding and dropping device according to claim 6, characterized in that: The cloth cutting mechanism (35) comprises a linear module (351) distributed along the length direction of the pressure roller (34); a cloth cutting knife (352) is slidably connected to the linear module (351); both ends of the linear module (351) are connected to one end of a first connecting rod (353) via a transfer seat; the other ends of the two first connecting rods (353) are connected via a synchronous shaft (354); and a synchronous motor (355) is provided on the synchronous shaft (354) for driving the synchronous shaft (354) to rotate.

8. The constant tension bidirectional fabric winding and dropping device according to claim 1 is characterized in that: A connecting frame (43) is provided between the first cloth rolling frame (2) and the second cloth rolling frame (3), a rack (44) is provided inside the connecting frame (43), the rack (44) is slidably connected to the connecting frame (43), two ends of the rack (44) are respectively fixedly connected to the two moving frames (4), a driving gear (45) is meshed on the rack (44), and the driving gear (45) is driven to rotate by a driving motor (46).

9. The constant tension bidirectional fabric winding and dropping device according to claim 1, characterized in that: The cloth dropping mechanism (7) comprises a cloth dropping frame (71), on which a cloth dropping guide roller (72), a third transmission roller (73) and a swing arm (74) are sequentially arranged along the fabric conveying direction; the third transmission roller (73) is provided with a third transmission motor (75) electrically connected to the controller; the upper end of the swing arm (74) is rotatably connected to the cloth dropping frame (71); a pair of cloth dropping rollers (76) are arranged at the lower end of the swing arm (74); and the cloth dropping frame (71) is provided with a swing mechanism for driving the swing arm (74) to swing.

10. The constant tension bidirectional fabric winding and dropping device according to claim 9, characterized in that: The swing mechanism comprises a swing motor, a swing driving wheel (77) is arranged on the output shaft of the swing motor, a second connecting rod (78) is arranged on the swing driving wheel (77), a third connecting rod (79) is hinged on the outer end of the second connecting rod (78), and the other end of the third connecting rod (79) is hinged to the swing arm (74).

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