Anti-warping unwinder

Abstract

This invention discloses a fabric untwisting and opening machine to prevent fabric deformation, comprising: a connecting assembly movably disposed in the middle of the frame, the connecting assembly being a triangular structure with a rounded top, used to separate the two ends of the fabric; the connecting assembly including a dividing head with an arc-shaped top, and two first rotating rods movably disposed at the bottom of the dividing head, with a third rotating column movably disposed at the bottom of each of the two first rotating rods, so that the two first rotating rods and the third rotating column form a triangular structure. This invention, by having the two first rotating rods rotate in opposite directions, causes the opening rubber strip to rotate, pre-opening the fabric, ensuring that the fabric is already in a relatively unfolded state before being conveyed to the opening roller. This avoids the problem of fabric deformation during the opening process due to untimely untwisting, which affects the opening effect and production quality, thereby effectively protecting the fabric and preventing deformation.

Description

Technical Field

[0001] This invention relates to the technical field of untwisting opening machine equipment, specifically an untwisting opening machine for preventing fabric deformation. Background Technology

[0002] During the printing and dyeing process, the fabric needs to be dehydrated, which turns the fabric into a twisted rope structure, requiring untwisting and opening treatment.

[0003] For example, CN215856776U discloses a de-twisting and opening machine, including a frame, a mounting frame, a de-twisting device, and a clamping device; the frame has a fabric guiding unit; the mounting frame is movably mounted on the frame and can be raised and lowered; the de-twisting device includes a de-twisting unit; the fabric guiding unit includes two spreading rollers, two guide rollers, and one drive roller; the drive roller is located in the lower center of the frame, the two guide rollers are located on both sides above the drive roller, and the two spreading rollers are located above their respective guide rollers. This invention uses a sliding groove on the frame, through which the mounting frame moves back and forth, meeting the needs of different fabrics and preventing fabric damage; the mounting frame consists of telescopic legs and a support plate, and the height of the de-twisting device can be adjusted via the telescopic legs to adapt to different fabric needs and improve the de-twisting and opening effect. This invention has the advantages of not causing fabric damage and having a relatively better de-twisting and opening effect.

[0004] However, in actual use, the above technology does not have a transition component between the untwisting device and the opening device, which can easily cause the fabric to be untwisted in time, resulting in deformation of the fabric during the opening process, affecting the opening effect and production quality. Summary of the Invention

[0005] The purpose of this invention is to provide a detwist opening machine that prevents fabric deformation, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution, including:

[0007] The frame, untwisting device, and spreading roller are provided. A spreading transition assembly is located at the midpoint between the untwisting device and the spreading roller on the frame. This assembly is used to pre-spread the fabric between the untwisting device and the spreading roller. The spreading transition assembly includes:

[0008] A connecting component is movably set in the middle of the frame. The connecting component is a triangular structure with a rounded top and is used to separate the two ends of the fabric. The connecting component includes a dividing head with a rounded top and two first rotating rods movably provided at the bottom of the dividing head. A third rotating column is movably provided at the bottom of each of the two first rotating rods, so that the two first rotating rods and the third rotating column form a triangular structure.

[0009] The transmission assembly is located between the first rotating rod and the third rotating column, and the transmission assembly is used to connect the third rotating column and the first rotating rod while maintaining the transmission connection between the third rotating column and the first rotating rod.

[0010] An auxiliary opening assembly is set on the surfaces of the first rotating rod and the third rotating column, and is used for pre-opening the fabric.

[0011] The drive assembly is located at the top of the first rotating rod, and the drive assembly is used to drive the two first rotating rods to rotate synchronously.

[0012] Preferably, the untwisting device is fixedly installed at the top of the frame and is used to perform untwisting operation on the fabric, the opening roller is fixedly installed in the middle of the frame and is used to perform opening operation on the fabric, and a constraint tube for constraining the fabric is fixedly connected in the middle of the frame, and the constraint tube is located at the top of the cutting head.

[0013] Preferably, a support column is fixedly connected to the bottom of the dividing head, and a rotating tube is rotatably connected to the surface of the support column via a bearing. A mounting base is fixedly connected to the bottom of the support column, and a drive housing is hinged to the bottom of the mounting base so that the drive housing can rotate relative to the fabric in the front-back direction. The drive housing has a hollow structure in the middle, and rotating arms are rotatably provided at both ends inside the drive housing. The rotating arm has a hollow structure in the middle with an open end, and a first rotating rod is rotatably connected to the inner wall of the rotating arm via a bearing. A second rotating column is fixedly connected to one end of the first rotating rod corresponding to the position of the third rotating column. Fixed brackets are fixedly connected to the surface of the dividing head and the surface of the mounting base, and the fixed brackets are fixedly connected to the middle of the frame.

[0014] Preferably, the transmission assembly includes a first hinge frame and a second hinge frame that are hinged to each other. The first hinge frame is rotatably connected to one end of the second rotating column corresponding to the position of the third rotating column via a bearing. A first sleeve is rotatably connected to the middle of one end of the second hinge frame via a bearing, and the first sleeve is movably sleeved on the surface of the third rotating column. The third rotating column movably passes through and extends to one end of the second hinge frame that is hinged to the first hinge frame. There are two second hinge frames, and the two second hinge frames are located at the two ends of the third rotating column, respectively. One of the first sleeves is fixedly connected to a second sleeve at the end away from the position of the second hinge frame, and the second sleeve is movably sleeved on the surface of the third rotating column. A first hemispherical tooth is fixedly connected to the end of the second rotating column corresponding to the position of the first hinge frame, and a second hemispherical tooth is fixedly connected to the surface of the first sleeve. The surfaces of the first hemispherical tooth and the second hemispherical tooth mesh with each other.

[0015] Preferably, the auxiliary opening assembly includes a first rotating disk, a second rotating disk, an opening rubber strip, a third rotating disk, a compression disk, a damping spring, and a limiting disk. The limiting disk and the first rotating disk are respectively fixedly connected to both ends of the opening rubber strip, and the second rotating disk is located at one end of the opening rubber strip near the third rotating disk. The opening rubber strip extends through and to both ends of the second rotating disk. The second rotating disk and the first rotating disk are relatively stationary, so that when the third rotating disk rotates and causes the opening rubber strip to twist, the tension of the opening rubber strip between the second rotating disk and the first rotating disk is changed, thereby adjusting the force of the opening rubber strip on the fabric opening. The compression disk and the limiting disk are respectively located at both ends of the third rotating disk. A damping spring is fixedly connected to the end of the compression disk away from the third rotating disk, and the opposite ends of the third rotating disk and the limiting disk are roughened, so that the damping spring presses the third rotating disk toward the limiting disk through the compression disk, keeping the third rotating disk and the limiting disk relatively stationary.

[0016] Preferably, in the auxiliary opening assembly located on the first rotating rod, the first rotating disk is fixedly connected to the surface of the first rotating rod, and the second rotating disk, the limiting disk, and the damping spring in the auxiliary opening assembly located on the first rotating rod are all fixedly connected to the surface of the second rotating column, and the third rotating disk and the pressing disk in the auxiliary opening assembly located on the first rotating rod are all movably connected to the surface of the second rotating column.

[0017] Preferably, in the auxiliary opening assembly located on the third rotating column, the first rotating disk is movably sleeved on the surface of the third rotating column, and one end of the first rotating disk is fixedly connected to one end of the first sleeve away from the position of the second sleeve. In the auxiliary opening assembly located on the third rotating column, the second rotating disk, the limiting disk, and the damping spring are all fixedly connected to the surface of the second sleeve. In the auxiliary opening assembly located on the third rotating column, the third rotating disk and the extrusion disk are both movably connected to the surface of the second sleeve.

[0018] Preferably, the surface of the third rotating column is provided with a keyway, and the inner walls of the first sleeve, the second sleeve and the first rotating disk in the auxiliary opening assembly on the third rotating column are all fixedly connected with flat keys, and the flat keys are movably connected to the inner wall of the keyway, so that the first sleeve, the second sleeve and the first rotating disk in the auxiliary opening assembly on the third rotating column can rotate with the rotation of the third rotating column.

[0019] Preferably, the drive assembly includes two positioning shafts fixedly connected to the inner wall of one end of the dividing head. A first meshing gear is rotatably connected to the surface of each positioning shaft, and the surfaces of the two first meshing gears mesh. A third sleeve is fixedly connected to one end of each first meshing gear, and the third sleeve is rotatably connected to the surface of the positioning shaft. A rotating arm is fixedly connected to the surface of the positioning shaft. A second meshing gear is rotatably connected to the end of the positioning shaft away from the first meshing gear, and the surfaces of the two second meshing gears mesh. The middle portion of each second meshing gear movably penetrates and extends to the outside of the drive housing, and one of the second meshing gears... The gear is driven by a drive motor. A toothed tube is fixedly connected to one end of the mounting base corresponding to the position of the rotating arm, and a first conical toothed ring is fixedly connected to one end of the toothed tube corresponding to the position of the rotating arm. A meshing groove communicating with the inside of the rotating arm is opened at one end of the rotating arm corresponding to the position of the first conical toothed ring and the toothed tube. The first conical toothed ring and the toothed tube are rotatably connected to the inner wall of the meshing groove. A second conical toothed ring is fixedly connected to the surface of the first rotating rod corresponding to the position of the first conical toothed ring, and the surface of the second conical toothed ring meshes with the surface of the first conical toothed ring. Metal springs are fixedly connected to one end of the opposite surfaces of the two rotating arms.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] This invention uses two first rotating rods that rotate in opposite directions. When the first rotating rods drive the opening rubber strip to rotate, they pre-open the fabric, so that the fabric is already in a relatively unfolded state before being transferred to the opening roller. This avoids the problem of the fabric deforming during the opening process due to untimely untwisting, which affects the opening effect and production quality. Thus, it effectively protects the fabric and prevents it from deforming.

[0022] The present invention also increases the pressure on the open-width rubber strips on both sides of the fabric when the twist of the fabric increases at the position of the open-width transition component. This pressure is transmitted to the first rotating rods, causing the two first rotating rods to converge towards the center. In other words, the two first rotating rods drive the two rotating arms to rotate relative to each other, thereby causing the two rotating arms to squeeze the metal spring. This allows the open-width transition component to adjust itself according to the twist of the fabric, avoiding hard contact with the fabric and preventing damage to the fabric. This further prevents damage and deformation of the fabric.

[0023] This invention also moves the extrusion disc away from the third rotating disc and compresses the damping spring. At this time, the third rotating disc and the limiting disc are in an active state. Rotating the third rotating disc causes the portion of the open-width rubber strip located between the third and second rotating discs to twist, thereby increasing the length of the open-width rubber strip between the third and second rotating discs. In other words, it shortens the length of the open-width rubber strip between the first and second rotating discs, thus achieving the purpose of adjusting the tension of the open-width rubber strip. This allows for adjustment of the elliptical structure formed by the driven rotation of the open-width rubber strip, thereby enhancing the applicability of the device and making the open-width transition component suitable for fabrics of different soft materials. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the untwisting and opening machine for preventing fabric deformation according to the present invention. Figure 1 ;

[0025] Figure 2 This is a schematic diagram of the overall structure of the untwisting and opening machine for preventing fabric deformation according to the present invention. Figure 2 ;

[0026] Figure 3 This is a schematic diagram of the anti-fabric deformation untwisting opening machine connecting assembly structure of the present invention. Figure 1 ;

[0027] Figure 4 This is a schematic diagram of the anti-fabric deformation untwisting opening machine connecting assembly structure of the present invention. Figure 2 ;

[0028] Figure 5 This is a cross-sectional view of the anti-twist opening machine connecting assembly structure for preventing fabric deformation according to the present invention;

[0029] Figure 6 Cross-sectional view of the untwisting and opening machine drive housing structure for preventing fabric deformation according to the present invention. Figure 1 ;

[0030] Figure 7 Cross-sectional view of the untwisting and opening machine drive housing structure for preventing fabric deformation according to the present invention. Figure 2 ;

[0031] Figure 8 This is an exploded view of the structure of the untwisting opening machine drive assembly for preventing fabric deformation according to the present invention;

[0032] Figure 9 This is a schematic diagram of the untwisting opening machine tooth tube structure for preventing fabric deformation according to the present invention;

[0033] Figure 10 This is a schematic diagram of the rotating arm structure of the untwisting opening machine for preventing fabric deformation according to the present invention;

[0034] Figure 11This is a front view of the structure of the auxiliary opening assembly for the untwisting opening machine that prevents fabric deformation according to the present invention;

[0035] Figure 12 This is a front sectional view of the transmission assembly structure of the untwisting opening machine for preventing fabric deformation according to the present invention;

[0036] Figure 13 This is a schematic diagram of the transmission assembly structure of the untwisting opening machine for preventing fabric deformation according to the present invention;

[0037] Figure 14 This is a cross-sectional view of the transmission assembly structure of the untwisting opening machine for preventing fabric deformation according to the present invention.

[0038] In the diagram: 1. Frame; 2. Untwisting device; 3. Spreading roller; 4. Fabric;

[0039] 501. Dividing head; 502. Support column; 503. Rotating tube; 504. Mounting base; 505. Drive housing; 506. Rotating arm; 507. First rotating rod; 508. Second rotating column; 509. Third rotating column; 510. First sleeve; 511. Second sleeve;

[0040] 601. First hinge frame; 602. Second hinge frame; 603. First hemispherical tooth; 604. Second hemispherical tooth; 605. Keyway; 606. Flat key;

[0041] 701. First rotating disk; 702. Second rotating disk; 703. Open-width rubber strip; 704. Third rotating disk; 705. Extrusion disk; 706. Damping spring; 707. Limiting disk;

[0042] 801. Positioning shaft; 802. First meshing gear; 803. Third sleeve; 804. Second meshing gear; 805. Gear tube; 806. First conical gear ring; 807. Second conical gear ring; 808. Meshing groove; 809. Metal spring;

[0043] 9. Fixed bracket; 10. Constraint tube. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] Please see Figure 1-14 The present invention provides a technical solution comprising:

[0046] The machine includes a frame 1, a detwisting device 2, and a spreading roller 3. A spreading transition assembly is located between the detwisting device 2 and the spreading roller 3 on the frame 1. This assembly is used to pre-spread the fabric 4 between the detwisting device 2 and the spreading roller 3. The detwisting device 2 is fixedly mounted on the top of the frame 1 and is used to detwise the fabric 4. The spreading roller 3 is fixedly mounted in the middle of the frame 1 and is used to spread the fabric 4. A constraint tube 10 for restraining the fabric 4 is fixedly installed in the middle of the frame 1, and the constraint tube 10 is located on top of the dividing head 501. The spreading transition assembly includes:

[0047] A connecting assembly is located in the middle of the frame 1. This assembly is a triangular structure with a rounded top, used to separate the two ends of the fabric 4. The connecting assembly includes a dividing head 501 with a rounded top. Two first rotating rods 507 are movably mounted at the bottom of the dividing head 501, and a third rotating column 509 is movably mounted at the bottom of each of the two first rotating rods 507, forming a triangular structure. A support column 502 is fixedly mounted at the bottom of the dividing head 501. A rotating tube 503 is rotatably connected to the surface of the support column 502 via a bearing. The dividing head 501 is located in the middle of the fabric 4 and is used to pre-divide the fabric 4. The fabric 4 is in a close fit with the opening transition assembly. This means that when the fabric 4 is taut, it will cause the drive housing 505 to hinge with the mounting base 504. During this operation, the force received by the fabric 4 is mainly the force of the opening transition assembly overcoming gravity and generating rotation. Therefore, the squeezing force between the opening transition component and the fabric 4 can be adaptively adjusted according to the tightness of the fabric 4. By setting the rotating tube 503, the rotating tube 503 can rotate with the offset of the fabric 4 to adapt to the subsequent opening operation of the fabric 4. The bottom of the support column 502 is fixedly installed with the mounting base 504, and the bottom of the mounting base 504 is hinged with the drive housing 505 so that the drive housing 505 can rotate relative to the fabric 4 in the front and back direction. The drive housing 505 has a hollow structure in the middle. Both ends of the drive housing 505 are respectively provided with rotating arms 506. The rotating arm 506 has a hollow structure in the middle with an open end. The first rotating rod 507 is rotatably connected to the inner wall of the rotating arm 506 through the bearing. The end of the first rotating rod 507 corresponding to the position of the third rotating column 509 is fixedly installed with the second rotating column 508. The surface of the dividing head 501 and the surface of the mounting base 504 are both fixedly installed with the fixed bracket 9, and the fixed bracket 9 is fixedly installed in the middle of the frame 1.

[0048] A transmission assembly is movably positioned between the first rotating rod 507 and the third rotating column 509. This assembly connects the third rotating column 509 and the first rotating rod 507 while maintaining their transmission connection. The transmission assembly includes a first hinge frame 601 and a second hinge frame 602 that are hinged together. The first hinge frame 601 is rotatably connected via a bearing to one end of the second rotating column 508 corresponding to the position of the third rotating column 509. A first sleeve 510 is rotatably connected via a bearing to the middle of one end of the second hinge frame 602, and the first sleeve 510 is movably fitted onto the surface of the third rotating column 509. The third rotating column 509 movably passes through... The second hinge 602 extends to one end of the hinge position between the second hinge 602 and the first hinge 601. There are two second hinges 602, and the two second hinges 602 are located at the two ends of the third rotating column 509 respectively. One of the first sleeves 510 has a second sleeve 511 fixedly installed at the end away from the position of the second hinge 602, and the second sleeve 511 is movably sleeved on the surface of the third rotating column 509. The second rotating column 508 has a first hemispherical tooth 603 fixedly installed at the end corresponding to the position of the first hinge 601, and a second hemispherical tooth 604 is fixedly installed on the surface of the first sleeve 510. The surfaces of the first hemispherical tooth 603 and the second hemispherical tooth 604 mesh with each other.

[0049] In use, when the first rotating rod 507 rotates, it causes the second rotating column 508 to rotate, which in turn causes the second rotating column 508 to rotate the first hemispherical tooth 603. When the first hemispherical tooth 603 rotates, it causes the second hemispherical tooth 604 to rotate, and the second hemispherical tooth 604, through the first sleeve 510, in conjunction with the flat key 606 and the keyway 605, causes the third rotating column 509 to rotate. This allows the transmission assembly to transmit the rotation of the first rotating rod 507 to the third rotating column 509.

[0050] An auxiliary opening assembly is movably mounted on the surfaces of the first rotating rod 507 and the third rotating column 509, and is used for pre-opening the fabric 4. The auxiliary opening assembly includes a first rotating disk 701, a second rotating disk 702, an opening rubber strip 703, a third rotating disk 704, a compression disk 705, a damping spring 706, and a limiting disk 707. The limiting disk 707 and the first rotating disk 701 are respectively fixedly mounted at both ends of the opening rubber strip 703. The second rotating disk 702 is located at one end of the opening rubber strip 703 near the third rotating disk 704, and the opening rubber strip 703 movably passes through and extends to both ends of the second rotating disk 702. The second rotating disk 702 and the first rotating disk 701 are relatively stationary, so that… When the third rotating disk 704 rotates and causes the open-width rubber strip 703 to twist, it changes the tightness of the open-width rubber strip 703 between the second rotating disk 702 and the first rotating disk 701, so that the force of the open-width rubber strip 703 on the opening of the fabric 4 can be adjusted. The extrusion disk 705 and the limiting disk 707 are located at the two ends of the third rotating disk 704, respectively. A damping spring 706 is fixedly installed at the end of the extrusion disk 705 away from the third rotating disk 704, and the opposite ends of the third rotating disk 704 and the limiting disk 707 are roughly designed so that the damping spring 706 presses the third rotating disk 704 toward the position of the limiting disk 707 through the extrusion disk 705, and keeps the third rotating disk 704 and the limiting disk 707 relatively stationary.

[0051] In use, the above structure rotates the third rotating disk 704, causing the portion of the open rubber strip 703 located between the third rotating disk 704 and the second rotating disk 702 to twist. This shortens the length of the open rubber strip 703 between the first rotating disk 701 and the second rotating disk 702, thereby achieving the purpose of adjusting the tightness of the open rubber strip 703. By setting the compression disk 705, the damping spring 706, and the limiting disk 707, in the initial state, the damping spring 706 will drive the third rotating disk 704 to fit tightly against the limiting disk 707 through the compression disk 705, thus preventing the third rotating disk 704 from rotating.

[0052] In the auxiliary opening assembly located on the first rotating rod 507, the first rotating disk 701 is fixedly installed on the surface of the first rotating rod 507, and the second rotating disk 702, the limiting disk 707 and the damping spring 706 in the auxiliary opening assembly located on the first rotating rod 507 are all fixedly installed on the surface of the second rotating column 508. The third rotating disk 704 and the extrusion disk 705 in the auxiliary opening assembly located on the first rotating rod 507 are movably connected to the surface of the second rotating column 508, so that when the first rotating rod 507 rotates, the first rotating rod 507 will drive the opening rubber strip 703 to rotate through the first rotating disk 701, the second rotating column 508 and the second rotating disk 702.

[0053] In the auxiliary opening assembly located on the third rotating column 509, the first rotating disk 701 is movably sleeved on the surface of the third rotating column 509, and one end of the first rotating disk 701 is fixedly installed with one end of the first sleeve 510 located away from the second sleeve 511. In the auxiliary opening assembly located on the third rotating column 509, the second rotating disk 702, the limiting disk 707, and the damping spring 706 are all fixedly installed on the surface of the second sleeve 511. In the auxiliary opening assembly located on the third rotating column 509, the third rotating disk 704 and the pressing disk 705 are respectively... The surface of the second sleeve 511 is movably connected to the surface of the third rotating column 509, and a keyway 605 is provided on the surface of the third rotating column 509. The inner walls of the first sleeve 510, the second sleeve 511 and the first rotating disk 701 in the auxiliary opening assembly on the third rotating column 509 are respectively fixedly installed with flat keys 606, and the flat keys 606 are movably connected to the inner wall of the keyway 605, so that the first sleeve 510, the second sleeve 511 and the first rotating disk 701 in the auxiliary opening assembly on the third rotating column 509 can rotate with the rotation of the third rotating column 509.

[0054] When the above structure is in use, the third rotating column 509 will drive the opening rubber strip 703 to rotate through the keyway 605, the flat key 606, and the second sleeve 511. At the same time, the first rotating disk 701 and the second rotating disk 702 located on the third rotating column 509 can also move on the third rotating column 509, so that the rotation of the opening rubber strip 703 located on the third rotating column 509 will spread out the folded part in the middle of the fabric 4. That is to say, the fabric 4 gradually forms an arc-shaped structure at the opening transition component position, which facilitates the subsequent opening of the fabric 4 by the opening roller 3.

[0055] A drive assembly is mounted on top of the first rotating rod 507 and is used to drive the two first rotating rods 507 to rotate synchronously. The drive assembly includes two positioning shafts 801 fixedly mounted on the inner wall of one end of the dividing head 501. A first meshing gear 802 is rotatably connected to the surface of each positioning shaft 801, and the surfaces of the two first meshing gears 802 mesh together. A third sleeve 803 is fixedly mounted on one end of each first meshing gear 802 and is rotatably connected to the surface of the positioning shaft 801. A rotating arm 506 is fixedly mounted on the surface of the positioning shaft 801. A second meshing gear 804 is rotatably connected to the end of the positioning shaft 801 away from the first meshing gear 802, and the surfaces of the two second meshing gears 804 mesh together. The middle portion of the second meshing gear 804 movably penetrates and extends into the drive housing 505. Externally, one of the second meshing gears 804 is driven by a drive motor. A toothed tube 805 is fixedly installed at one end of the mounting base 504 corresponding to the position of the rotating arm 506. A first conical toothed ring 806 is fixedly installed at one end of the toothed tube 805 corresponding to the position of the rotating arm 506. A meshing groove 808 communicating with the inside of the rotating arm 506 is opened at one end of the rotating arm 506 corresponding to the position of the first conical toothed ring 806 and the toothed tube 805. The first conical toothed ring 806 and the toothed tube 805 are rotatably connected to the inner wall of the meshing groove 808. A second conical toothed ring 807 is fixedly installed on the surface of the first rotating rod 507 corresponding to the position of the first conical toothed ring 806. The surface of the second conical toothed ring 807 meshes with the surface of the first conical toothed ring 806. Metal springs 809 are fixedly installed at one end of the opposite face of the two rotating arms 506.

[0056] When the above structure is in use, the drive motor drives the second meshing gear 804 to rotate, thereby causing the two second meshing gears 804 to mesh together. This, in turn, drives the two first conical gear rings 806 to rotate in opposite directions through the toothed tube 805. When the first conical gear ring 806 rotates, it will drive the first rotating rod 507 to rotate through the second conical gear ring 807, thereby providing power for the rotation of the open rubber strip 703.

[0057] Working principle: In use, the invention uses a dividing head 501 located in the middle of the fabric 4 to pre-divide the fabric 4. The fabric 4 and the opening transition component are in a close fit. When the fabric 4 is taut, it will cause the drive housing 505 and the mounting base 504 to hinge. In this part of the operation, the force received by the fabric 4 is mainly the force of the opening transition component overcoming gravity to generate rotation. Therefore, the squeezing force between the opening transition component and the fabric 4 can be adaptively adjusted according to the tightness of the fabric 4. By setting a rotating tube 503, the rotating tube 503 can rotate with the offset of the fabric 4 to adapt to the subsequent opening operation of the fabric 4.

[0058] The drive motor drives the second meshing gear 804 to rotate, thereby causing the two second meshing gears 804 to mesh together, which in turn drives the two first conical gear rings 806 to rotate in opposite directions through the tooth tube 805. When the first conical gear ring 806 rotates, it will cause the first conical gear ring 806 to drive the first rotating rod 507 to rotate through the second conical gear ring 807.

[0059] When the first rotating rod 507 rotates, it will cause the second rotating column 508 to rotate, which in turn will cause the second rotating column 508 to rotate the first hemispherical tooth 603. When the first hemispherical tooth 603 rotates, it will cause the second hemispherical tooth 604 to rotate, and the second hemispherical tooth 604 will drive the third rotating column 509 to rotate through the first sleeve 510 in conjunction with the flat key 606 and the keyway 605. As a result, the first rotating rod 507 and the third rotating column 509 will drive the auxiliary opening component to rotate, and perform a pre-opening operation on the fabric 4.

[0060] When the first rotating rod 507 rotates, it causes the open-width rubber strip 703 to rotate via the first rotating disk 701, the second rotating column 508, and the second rotating disk 702. Because the open-width rubber strip 703 is in a relaxed state, when the first rotating rod 507 drives the open-width rubber strip 703 to rotate, the open-width rubber strip 703 gradually forms a shape under the action of centrifugal force, as shown in the image. Figure 3 and Figure 4 The fabric 4 is pre-opened by the opening rubber strip 703, ensuring it adheres to the surface of the fabric 4. Since the two first rotating rods 507 rotate in opposite directions, the opening rubber strip 703 pre-opens the fabric 4, ensuring it is already relatively spread before being transferred to the opening roller 3. This prevents the fabric from deforming during the opening process due to untimely untwisting, thus effectively protecting the fabric 4 and preventing deformation. Simultaneously, as the twist of the fabric 4 increases at the opening transition component, the pressure on the opening rubber strip 703 from both sides of the fabric 4 increases, causing the opening rubber strip 703 to transmit this pressure to the first rotating rod 507. This causes the two first rotating rods 507 to converge towards the center, meaning the two first rotating rods 507 will drive the two rotating arms 506 to rotate relative to each other, thereby causing the two rotating arms 506 to squeeze the metal spring 809. This allows the opening transition component to adjust itself according to the twist change of the fabric 4, avoiding hard contact with the fabric 4 and causing damage to the fabric 4. At the same time, when the rotating arm 506 rotates, it will drive the first meshing gear 802 to rotate through the third sleeve 803, so that the two first rotating rods 507 converge towards the center to the same extent, avoiding the opening offset.

[0061] Simultaneously, when the two first rotating rods 507 move closer to the center, they cause the first rotating rods 507 to drive the first hinge frame 601 and the second hinge frame 602 to move towards the center of the third rotating column 509 via the second rotating column 508. Since the second hinge frame 602, the second hemispherical tooth 604, and the second sleeve 511 are all fitted onto the surface of the third rotating column 509, when the two first rotating rods 507 move closer to the center, the triangle formed by the first rotating rods 507 and the third rotating column 509 changes; that is, the base of the triangle becomes shorter. As the twist of the fabric 4 increases, a lot of stacking occurs in the center of the fabric 4. At this time, because the base of the aforementioned triangle becomes shorter, it is located on the third rotating column 509. The distance between the first rotating disk 701 and the second rotating disk 702 becomes shorter, which means that the tension of the open-width rubber strip 703 on the third rotating column 509 becomes smaller, making the open-width rubber strip 703 on the third rotating column 509 looser. When the third rotating column 509 drives the open-width rubber strip 703 to rotate through the keyway 605, the flat key 606 and the second sleeve 511, the ellipse formed by the rotation of the open-width rubber strip 703 under centrifugal force will gradually become more circular. This means that the rotation of the open-width rubber strip 703 will spread out the folded part in the middle of the fabric 4. In other words, the fabric 4 at the position of the open-width transition component gradually forms an arc-shaped structure, which facilitates the subsequent opening of the fabric 4 by the opening roller 3.

[0062] When it is necessary to adjust the tension of the open-width rubber strip 703, the compression plate 705 is moved away from the third rotating plate 704 and squeezes the damping spring 706. At this time, the third rotating plate 704 and the limiting plate 707 are in an active state. Rotating the third rotating plate 704 causes the portion of the open-width rubber strip 703 located between the third rotating plate 704 and the second rotating plate 702 to twist, thereby increasing the length of the open-width rubber strip 703 located between the third rotating plate 704 and the second rotating plate 702. In other words, it shortens the length of the open-width rubber strip 703 between the first rotating plate 701 and the second rotating plate 702, thus achieving the purpose of adjusting the tension of the open-width rubber strip 703. This allows adjustment of the elliptical structure formed by the driven rotation of the open-width rubber strip 703, thereby enhancing the applicability of the device and making the open-width transition component suitable for fabrics 4 made of different soft materials.

[0063] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0064] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A detwisting and opening machine for preventing fabric deformation, characterized in that: include: The frame (1), untwisting device (2), and spreading roller (3) are provided. The frame (1) is provided with a spreading transition component at the middle position corresponding to the untwisting device (2) and the spreading roller (3) for pre-spreading the fabric (4) between the untwisting device (2) and the spreading roller (3). The spreading transition component includes: A connecting component is set in the middle of the frame (1). The connecting component is a triangular structure with a rounded top and is used to separate the two ends of the fabric (4). The connecting component includes a dividing head (501) with a rounded top and two first rotating rods (507) movably provided at the bottom of the dividing head (501). A third rotating column (509) is movably provided at the bottom of each of the two first rotating rods (507) so that the two first rotating rods (507) and the third rotating column (509) form a triangular structure. The transmission assembly is set between the first rotating rod (507) and the third rotating column (509), and the transmission assembly is used to connect the third rotating column (509) and the first rotating rod (507) while maintaining the transmission connection relationship between the third rotating column (509) and the first rotating rod (507); An auxiliary opening assembly is set on the surfaces of the first rotating rod (507) and the third rotating column (509) and is used for pre-opening the fabric (4); The drive assembly is located on top of the first rotating rod (507), and the drive assembly is used to drive the two first rotating rods (507) to rotate synchronously; The transmission assembly includes a first hinge frame (601) and a second hinge frame (602) hinged together. The first hinge frame (601) is rotatably connected to one end of the second rotating column (508) corresponding to the position of the third rotating column (509) via a bearing. A first sleeve (510) is rotatably connected to the middle of one end of the second hinge frame (602) via a bearing, and the first sleeve (510) is movably fitted onto the surface of the third rotating column (509). The third rotating column (509) movably passes through and extends to one end of the second hinge frame (602) at the hinge position between the first hinge frame (601) and the second hinge frame (602). The number of second hinge frames (602) is... Two, and two second hinge frames (602) are respectively located at both ends of the third rotating column (509). One of the first sleeves (510) is fixedly connected to a second sleeve (511) at the end away from the second hinge frame (602), and the second sleeve (511) is movably sleeved on the surface of the third rotating column (509). The second rotating column (508) is fixedly connected to a first hemispherical tooth (603) at the end corresponding to the position of the first hinge frame (601), and the surface of the first sleeve (510) is fixedly connected to a second hemispherical tooth (604). The surfaces of the first hemispherical tooth (603) and the second hemispherical tooth (604) mesh with each other. A support column (502) is fixedly connected to the bottom of the dividing head (501). A rotating tube (503) is rotatably connected to the surface of the support column (502) via a bearing. A mounting base (504) is fixedly connected to the bottom of the support column (502), and a drive housing (505) is hinged to the bottom of the mounting base (504) so ​​that the drive housing (505) can rotate relative to the fabric (4) in the front-back direction. The drive housing (505) has a hollow structure in the middle, and the two ends inside the drive housing (505) are... Each of the components is provided with a rotating arm (506), which is a hollow structure with an open end in the middle. The first rotating rod (507) is rotatably connected to the inner wall of the rotating arm (506) through a bearing. The first rotating rod (507) is fixedly connected to a second rotating column (508) at one end corresponding to the position of the third rotating column (509). The surface of the dividing head (501) and the surface of the mounting base (504) are both fixedly connected to a fixed bracket (9), and the fixed bracket (9) is fixedly connected to the middle of the frame (1).

2. The anti-fabric deformation untwisting and opening machine according to claim 1, characterized in that: The untwisting device (2) is fixedly installed at the top of the frame (1) and is used to untwise the fabric (4). The opening roller (3) is fixedly installed in the middle of the frame (1) and is used to open the fabric (4). A constraint tube (10) for constraining the fabric (4) is fixedly connected in the middle of the frame (1), and the constraint tube (10) is located at the top of the dividing head (501).

3. The anti-fabric deformation untwisting and opening machine according to claim 2, characterized in that: The auxiliary spreading assembly includes a first rotating disk (701), a second rotating disk (702), a spreading rubber strip (703), a third rotating disk (704), a compression disk (705), a damping spring (706), and a limiting disk (707). The limiting disk (707) and the first rotating disk (701) are respectively fixedly connected to both ends of the spreading rubber strip (703). The second rotating disk (702) is located at one end of the spreading rubber strip (703) near the third rotating disk (704), and the spreading rubber strip (703) extends through and to both ends of the second rotating disk (702). The second rotating disk (702) and the first rotating disk (701) are relatively stationary so that when the third rotating disk (704) rotates, it causes the spreading rubber strip (703) to twist. The tension of the open rubber strip (703) between the second rotating disk (702) and the first rotating disk (701) is changed so that the force of the open rubber strip (703) on the opening of the fabric (4) can be adjusted. The extrusion disk (705) and the limiting disk (707) are located at the two ends of the third rotating disk (704). A damping spring (706) is fixedly connected to the end of the extrusion disk (705) away from the third rotating disk (704). The opposite ends of the third rotating disk (704) and the limiting disk (707) are roughly set so that the damping spring (706) squeezes the third rotating disk (704) toward the position of the limiting disk (707) through the extrusion disk (705) and keeps the third rotating disk (704) and the limiting disk (707) relatively stationary.

4. The anti-fabric deformation untwisting and opening machine according to claim 3, characterized in that: In the auxiliary opening assembly located on the first rotating rod (507), the first rotating disk (701) is fixedly connected to the surface of the first rotating rod (507), and the second rotating disk (702), the limiting disk (707) and the damping spring (706) in the auxiliary opening assembly located on the first rotating rod (507) are all fixedly connected to the surface of the second rotating column (508), and the third rotating disk (704) and the pressing disk (705) in the auxiliary opening assembly located on the first rotating rod (507) are all movably connected to the surface of the second rotating column (508).

5. The anti-fabric deformation untwisting and opening machine according to claim 4, characterized in that: The first rotating disk (701) in the auxiliary opening assembly located on the third rotating column (509) is movably sleeved on the surface of the third rotating column (509), and one end of the first rotating disk (701) is fixedly connected to one end of the first sleeve (510) located away from the second sleeve (511). The second rotating disk (702), the limiting disk (707) and the damping spring (706) in the auxiliary opening assembly located on the third rotating column (509) are all fixedly connected to the surface of the second sleeve (511). The third rotating disk (704) and the pressing disk (705) in the auxiliary opening assembly located on the third rotating column (509) are all movably connected to the surface of the second sleeve (511).

6. The anti-fabric deformation untwisting and opening machine according to claim 5, characterized in that: The surface of the third rotating column (509) is provided with a keyway (605), and the inner walls of the first sleeve (510), the second sleeve (511) and the first rotating disk (701) in the auxiliary opening assembly on the third rotating column (509) are respectively fixedly connected with flat keys (606), and the flat keys (606) are movably connected to the inner wall of the keyway (605) so that the first sleeve (510), the second sleeve (511) and the first rotating disk (701) in the auxiliary opening assembly on the third rotating column (509) can rotate with the rotation of the third rotating column (509).

7. The anti-fabric deformation untwisting and opening machine according to claim 6, characterized in that: The drive assembly includes two positioning shafts (801) fixedly connected to the inner wall of one end of the dividing head (501). A first meshing gear (802) is rotatably connected to the surface of each positioning shaft (801), and the surfaces of the two first meshing gears (802) mesh. A third sleeve (803) is fixedly connected to one end of each first meshing gear (802), and the third sleeve (803) is rotatably connected to the surface of the positioning shaft (801). A rotating arm (506) is fixedly connected to the surface of the positioning shaft (801). A second meshing gear (804) is rotatably connected to the end of the positioning shaft (801) away from the first meshing gear (802), and the surfaces of the two second meshing gears (804) mesh. The middle portion of each second meshing gear (804) extends movably through and to the outside of the drive housing (505), and one of the second meshing gears (804) is driven by a drive motor. The mounting base (504) is fixedly connected to a toothed tube (805) at one end corresponding to the position of the rotating arm (506), and a first conical toothed ring (806) is fixedly connected to one end of the toothed tube (805) corresponding to the position of the rotating arm (506). The rotating arm (506) is provided with a meshing groove (808) communicating with the inside of the rotating arm (506) at one end corresponding to the position of the first conical toothed ring (806) and the toothed tube (805). The first conical toothed ring (806) and the toothed tube (805) are rotatably connected to the inner wall of the meshing groove (808). A second conical toothed ring (807) is fixedly connected to the surface of the first rotating rod (507) corresponding to the position of the first conical toothed ring (806), and the surface of the second conical toothed ring (807) meshes with the surface of the first conical toothed ring (806). A metal spring (809) is fixedly connected to one end of the opposite surfaces of the two rotating arms (506).

Images