Automatic roll changing device for cutting bed

Abstract

The utility model relates to cutting bed machine technical field discloses an automatic change roll device of cutting bed machine, including roll stock body, and roll stock body includes reel, and the cloth is coiled on the reel outside, and the inside of reel is provided with the inside support unit for supporting and driving reel rotation at both sides, and the inside support unit includes four inside support mechanisms for supporting the inner wall of reel and synchronous control four inside support mechanisms and drive mechanism that drives four inside support mechanisms open and close and rotate, and the supporting assembly provides stable support for the whole system, and the tensioning assembly ensures the full tensioning of cloth, avoids the influence that cloth relaxation brings, and the adjusting mechanism provides flexible support position adjustment through accurate screw rod adjustment, ensures that roll stock device can adapt to different specifications cloth reel, and drive mechanism provides necessary power support, ensures that inside support mechanism can support the reel of a plurality of different lengths and inner diameters, further improves the accuracy and stability of operation.

Description

Technical Field

[0001] This utility model relates to the field of cutting machine technology, specifically to an automatic cutting machine roll changing device. Background Technology

[0002] Automatic cutting machines are highly efficient automated equipment used in the textile and apparel industry. They can accurately cut multi-layered fabrics according to a preset layout diagram. Combining computer control systems and laser or blade cutting technology, they achieve intelligent layout, rapid cutting, low error, and high efficiency. They are widely used in clothing, home textiles, automotive interiors and other fields. Compared with traditional manual cutting, automatic cutting machines can significantly improve production efficiency, save labor costs and reduce material waste. They are an indispensable intelligent equipment in modern manufacturing.

[0003] Authorization number CN221216437U discloses an automatic cutting machine roll changing device. It realizes the rapid replacement of the fabric tube through key components such as mounting frame, connecting components, mounting shaft, inner support mechanism and fabric tube. Its core principle is that the motor II drives the lead screw to rotate, which in turn drives the mounting frame to move. The spring in the inner support mechanism causes the inner support block to disengage from the fabric tube, thereby simplifying the disassembly and replacement process of the fabric tube. This design improves the convenience of operation, reduces manpower input and improves production efficiency.

[0004] However, this device has certain limitations. First, the internal support mechanism uses a fixed-length internal support device, requiring the replacement of different specifications of internal support devices for fabric rolls of different lengths. This may lead to cumbersome replacement of parts and increased costs in practical applications. In addition, this fixed internal support device has adaptability issues in handling fabric rolls of various sizes, which may make it difficult to replace fabric rolls of certain special sizes, affecting the versatility and flexibility of the equipment. During long-term use, the need for frequent replacement of the internal support device may also lead to increased maintenance and operating costs. Therefore, those skilled in the art provide an automatic cutting machine roll changing device to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to provide an automatic cutting machine roll changing device to solve the problems mentioned in the background art.

[0006] This utility model provides the following technical solution: an automatic cutting machine roll changing device, including a roll body, the roll body including a roll, a greige fabric wound on the outside of the roll, and inner support units for supporting the inside of the roll and driving the roll to rotate are provided on both sides of the inside of the roll. The inner support unit includes four inner support mechanisms for supporting the inner wall of the roll and a drive mechanism for synchronously controlling the four inner support mechanisms and driving the four inner support mechanisms to open, close and rotate. Support components for supporting the inner support units are provided on the outside of the two inner support units. Support components for supporting the two support components are provided at the lower end of the two support components. An adjustment mechanism for controlling the movement of one of the support components is provided on one side of the upper end of the support component. A tensioning component for tensioning the greige fabric is provided on one side of the upper end of the support component.

[0007] As a preferred embodiment of the above technical solution, the support component includes a support plate, a movable groove is provided on one end of the upper side of the support plate, and an installation groove is provided on one end of the upper side of the support plate near the movable groove.

[0008] As a preferred embodiment of the above technical solution, the tensioning assembly includes two first support plates and two second support plates. The two first support plates are fixedly connected to the center of the side of the support plate that is far apart from each other. The two second support plates are fixedly connected to the center of the side of the support plate that is far apart from each other at one end. A first roller is rotatably sleeved on the upper part of the inner center of the two first support plates through a bearing. A second roller is rotatably sleeved on the upper part of the inner center of the two second support plates through a bearing.

[0009] As a preferred embodiment of the above technical solution, the adjustment mechanism includes a positioning plate and two linear guide rails. The positioning plate is fixedly connected to one side of the support plate near one end of the movable groove. The two linear guide rails are respectively fixedly connected to the center of the lower inner wall of the movable groove near both sides. Guide sleeves are slidably fitted on the upper outer sides of the two linear guide rails. A lead screw is rotatably sleeved on the upper inner center of the positioning plate via a bearing. The end of the lead screw away from the positioning plate is rotatably sleeved on the center of the inner wall of the movable groove away from the positioning plate via a bearing. A handwheel is fixedly connected to the end of the lead screw near the positioning plate.

[0010] As a preferred embodiment of the above technical solution, both support components include support base plates. One support base plate is fixedly sleeved on the outside of the two guide sleeves, and the other support base plate is fixedly sleeved inside the mounting groove. The support base plate near the two guide sleeves is threaded onto the outside of the lead screw. A load-bearing plate is fixedly connected to the center of the upper end of each of the two support base plates. Reinforcing ribs are fixedly connected to the center of both sides of each of the two load-bearing plates near their ends. The lower ends of the eight reinforcing ribs are respectively fixedly connected to the upper end of the two support base plates. A connecting sleeve hole is formed through the upper center of each of the two support base plates.

[0011] As a preferred embodiment of the above technical solution, the driving mechanism includes a servo motor, which is fixedly fitted inside the mating sleeve hole. A conductive slip ring is fixedly fitted on the outer side of the servo motor near the rotating end. A plurality of locking bolts are fixedly connected in a ring at the rotating end of the conductive slip ring near the servo motor. A flange is provided on the side of the conductive slip ring near the rotating end. A plurality of first positioning holes are arranged in a ring near the edge of the flange. The plurality of first positioning holes are respectively fitted on the outer side of the plurality of locking bolts. A flange ring is provided on the side of the flange away from the conductive slip ring. A plurality of second positioning holes are arranged in a ring near the edge of the flange ring. The plurality of second positioning holes are respectively fitted on the outer side of the plurality of locking bolts.

[0012] As a preferred embodiment of the above technical solution, a plurality of locking nuts are arranged in a ring and fixedly connected at the center of the flange ring away from the flange plate near the edge. The plurality of locking nuts are threaded onto the outer side of the plurality of locking bolts at the end away from the conductive slip ring. A protective steel sleeve is fixedly fitted inside the flange ring. Three first rotating seats are arranged and fixedly connected at the upper end, lower end and center of both sides of the protective steel sleeve. An electric push rod is fixedly connected at the center of the flange plate near the protective steel sleeve. The electric push rod is fitted inside the protective steel sleeve. A support plate is fixedly connected to the protective steel sleeve away from the flange ring. A guide steel ring is fixedly fitted at the center of the support plate. The telescopic end of the electric push rod is slidably fitted inside the guide steel ring, and a cross connecting bracket is fixedly fitted at the telescopic end of the electric push rod.

[0013] As a preferred embodiment of the above technical solution, the internal support mechanism includes three first links and two second links. The three first links are rotatably connected to the inside of the three first rotating seats on both sides. The second links are rotatably connected to the inside of the cross connecting frame on one side near both ends. The ends of the three first links away from the first rotating seats are rotatably connected to the second rotating seats. The ends of the second links away from the cross connecting frame are rotatably connected to the third rotating seats. An internal support plate is fixedly connected to one side of the three second rotating seats and the third rotating seats. A rubber anti-slip plate is fixedly connected to the side of the internal support plate away from the three second rotating seats and the third rotating seats. Multiple rubber anti-slip strips are arranged and fixedly connected to the side of the rubber anti-slip plate away from the internal support plate.

[0014] As a preferred embodiment of the above technical solution, four rubber anti-slip strips are respectively fitted on the outside of the two ends of the drum, one on one side and four on the other side, and the drum and the eight rubber anti-slip strips are detachably connected.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This device achieves efficient operation during the roll changing process of an automatic cutting machine through the coordinated work of multiple precisely designed components. The support component provides stable support for the entire system, the tensioning component ensures that the fabric is fully tensioned, avoiding the effects of fabric slack, the adjustment mechanism provides flexible support position adjustment through precise lead screw adjustment, ensuring that the roll device can adapt to fabric rolls of different specifications, and the drive mechanism provides the necessary power support to ensure that the internal support mechanism can internally support rolls of various lengths and inner diameters, further improving the accuracy and stability of operation.

[0017] The transmission relationship between various components is effectively optimized, enabling the overall system to operate efficiently and stably during operation, reducing manual intervention and improving the efficiency of fabric changing. Through a precise adjustment and support system, the device can adapt to fabric rolls of different sizes and weights, providing a wider range of application scenarios and effectively improving the working efficiency and stability of the cutting machine. Attached Figure Description

[0018] Figure 1 A three-dimensional structural diagram of an automatic cutting machine roll changing device;

[0019] Figure 2 This is a three-dimensional structural diagram of an automatic cutting machine roll changing device from another perspective;

[0020] Figure 3 A three-dimensional disassembled structural diagram of an automatic cutting machine roll changing device;

[0021] Figure 4 This is a three-dimensional structural diagram of the adjustment mechanism;

[0022] Figure 5 A schematic diagram of the three-dimensional disassembled structure of the adjustment mechanism;

[0023] Figure 6 A schematic diagram of the three-dimensional structure supporting the components;

[0024] Figure 7 This is a three-dimensional structural diagram of the drive mechanism;

[0025] Figure 8 A three-dimensional disassembled structural diagram of the drive mechanism;

[0026] Figure 9 A three-dimensional split-structure diagram of the drive mechanism from another perspective;

[0027] Figure 10 A schematic diagram of the three-dimensional disassembled structure of the internal support mechanism;

[0028] Figure 11 A schematic diagram of the three-dimensional disassembled structure from another perspective of the internal support mechanism;

[0029] Figure 12 This is a schematic diagram of the three-dimensional disassembled structure of the coil material.

[0030] Legend:

[0031] 1. Support assembly; 101. Support plate; 102. Movable groove; 103. Mounting groove; 2. Tensioning assembly; 201. First support plate; 202. First roller; 203. Second support plate; 204. Second roller; 3. Adjustment mechanism; 301. Positioning plate; 302. Linear guide rail; 303. Guide sleeve; 304. Lead screw; 305. Handwheel; 4. Support assembly; 401. Support base plate; 402. Load-bearing plate; 403. Reinforcing rib; 404. Connecting sleeve hole; 5. Drive mechanism; 501. Servo motor; 502. Conductive slip ring; 503. Locking screw 504. Bolt; 505. Flange; 506. First positioning hole; 507. Flange ring; 508. Second positioning hole; 509. Locking nut; 5000. Protective steel sleeve; 5010. First rotating seat; 5011. Electric push rod; 5012. Support plate; 5013. Guide steel ring; 5014. Cross connecting frame; 6. Internal support mechanism; 601. First connecting rod; 602. Second connecting rod; 603. Second rotating seat; 604. Third rotating seat; 605. Internal support plate; 606. Rubber anti-slip plate; 607. Rubber anti-slip strip; 7. Roll body; 701. Roll; 702. Greige fabric. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0033] Please see Figures 1-4 As shown, this utility model provides a technical solution: an automatic cutting machine roll changing device, including a roll body 7, the roll body 7 including a roll 701, a fabric 702 wound around the outside of the roll 701, and inner support units for supporting the inside of the roll 701 and driving the roll 701 to rotate are provided on both sides of the inside of the roll 701. The inner support unit includes four inner support mechanisms 6 for supporting the inner wall of the roll 701 and a drive mechanism 5 for synchronously controlling the four inner support mechanisms 6 and driving the four inner support mechanisms 6 to open, close and rotate. Support components 4 for supporting the inner support units are provided on the outside of the two inner support units. Support components 1 for supporting the two support components 4 are provided at the lower end of the two support components 4. Adjustment mechanism 3 for controlling the movement of one of the support components 4 is provided on one side of the upper end of the support component 1. Tensioning component 2 for tensioning the fabric 702 is provided on one side of the upper end of the support component 1.

[0034] This device achieves efficient operation during the automatic fabric roll changing process through the coordinated work of multiple precisely designed components. The support component 1 provides stable support for the entire system, the tensioning component 2 ensures sufficient fabric tension, avoiding the effects of fabric slack, and the adjustment mechanism 3 provides flexible support position adjustment through precise lead screw 304 adjustment, ensuring that the fabric roll device can adapt to fabric rolls 701 of different specifications. The drive mechanism 5 provides necessary power support, ensuring that the inner support mechanism 6 can internally support rolls 701 of various lengths and inner diameters, further improving the accuracy and stability of operation. It effectively optimizes the transmission relationship between various components, enabling the overall system to operate efficiently and stably during operation, reducing manual intervention and improving the efficiency of fabric changing. Through the precise adjustment and support system, the device can adapt to fabric rolls 701 of different sizes and weights, providing a wider range of application scenarios and effectively improving the working efficiency and stability of the cutting machine.

[0035] As one implementation method in this embodiment, please refer to Figure 3 As shown, the support assembly 1 includes a support plate 101. A movable groove 102 is provided on one side of the upper end of the support plate 101 near one end of the movable groove 102. An installation groove 103 is provided on one side of the upper end of the support plate 101 near one end of the movable groove 102.

[0036] The support component 1 supports the entire coil system via the support plate 101. The upper side of the support plate 101 is provided with a movable groove 102 and a mounting groove 103, which allows the adjustment mechanism 3 to adjust the position of the corresponding support component 4 as needed. During operation, the support plate 101 plays a role in providing stable support, ensuring that other components remain stable during operation and preventing operational errors caused by unstable support. The presence of the movable groove 102 makes the adjustment mechanism 3 more flexible, while the mounting groove 103 provides installation space for another support component 4, enhancing the modularity and maintainability of the system. The overall design enables the device to withstand large weight loads, avoiding equipment damage caused by insufficient support.

[0037] As one implementation method in this embodiment, please refer to Figures 2-3 As shown, the tensioning assembly 2 includes two first support plates 201 and two second support plates 203. The two first support plates 201 are fixedly connected to the center of the side of the support plate 101 that is far apart from each other. The two second support plates 203 are fixedly connected to the center of the side of the support plate 101 that is far apart from each other at one end. The first roller 202 is rotatably sleeved on the upper part of the center of the two first support plates 201 through a bearing. The second roller 204 is rotatably sleeved on the upper part of the center of the two second support plates 203 through a bearing.

[0038] The tensioning assembly 2 consists of two first support plates 201 and two second support plates 203, and is connected to the first roller 202 and the second roller 204 via bearing sleeves. Its function is to ensure that the fabric 702 is fully tensioned on the roll 701 to improve the accuracy of the cutting process. Through the first roller 202 and the second roller 204, the tensioning assembly 2 can adjust the tension of the fabric to avoid the fabric loosening from affecting the cutting quality. This structure can ensure that the tension force is evenly distributed, effectively improving the working stability and accuracy of the entire cutting system and reducing production errors caused by fabric loosening.

[0039] As one implementation method in this embodiment, please refer to Figure 5 As shown, the adjustment mechanism 3 includes a positioning plate 301 and two linear guide rails 302. The positioning plate 301 is fixedly connected to one side of the support plate 101 near one end of the movable groove 102. The two linear guide rails 302 are respectively fixedly connected to the center of the lower inner wall of the movable groove 102 near both sides. Guide sleeves 303 are slidably sleeved on the upper outer side of the two linear guide rails 302. A lead screw 304 is rotatably sleeved on the upper inner center of the positioning plate 301 through a bearing. The end of the lead screw 304 away from the positioning plate 301 is rotatably sleeved on the center of the inner wall of the movable groove 102 away from the positioning plate 301 through a bearing. A handwheel 305 is fixedly connected to the end of the lead screw 304 near the positioning plate 301.

[0040] The adjustment mechanism 3 includes a positioning plate 301 and a linear guide rail 302. The position of the support component 4 is precisely adjusted by a lead screw 304 and a handwheel 305. The sliding of the positioning plate 301 in the movable groove 102 allows the support component 4 to be finely adjusted as needed, ensuring the accuracy of fabric tension and drum 701 positioning. The cooperation between the lead screw 304 and the handwheel 305 makes operation simpler. The spacing of the support component 4 can be precisely adjusted by manual operation, ensuring that the entire device can adapt to fabric drums 701 of different sizes, thus improving the versatility of the equipment.

[0041] As one implementation method in this embodiment, please refer to Figures 5-6 As shown, both support components 4 include support base plates 401. One support base plate 401 is fixedly sleeved on the outside of the two guide sleeves 303, and the other support base plate 401 is fixedly sleeved inside the mounting groove 103. The support base plate 401 near the two guide sleeves 303 is threaded onto the outside of the lead screw 304. A load-bearing plate 402 is fixedly connected to the upper center of both support base plates 401. Reinforcing ribs 403 are fixedly connected to the center of both sides of the two load-bearing plates 402 near both ends. The lower ends of the eight reinforcing ribs 403 are fixedly connected to the upper ends of the two support base plates 401 respectively. A connecting sleeve hole 404 is opened through the upper center of the two support base plates 401.

[0042] The support assembly 4 is connected to the support assembly 1 through the support base plate 401 and works in conjunction with the adjustment mechanism 3. The support base plate 401, in cooperation with the guide sleeve 303, ensures that the support assembly 4 moves smoothly during operation. The load-bearing plate 402 and reinforcing rib 403 on the support base plate 401 improve the rigidity and load-bearing capacity of the entire support structure, enabling it to stably support the entire coil device and avoid structural deformation or instability caused by uneven stress.

[0043] As one implementation method in this embodiment, please refer to Figures 7-9 As shown, taking the drive mechanism 5 on one side as an example, the drive mechanism 5 includes a servo motor 501, which is fixedly sleeved inside the mating sleeve hole 404. A conductive slip ring 502 is fixedly sleeved on the outside of the servo motor 501 near the rotating end. Multiple locking bolts 503 are fixedly connected in a ring arrangement on the rotating end of the conductive slip ring 502 near the servo motor 501. A flange 504 is provided on the side of the conductive slip ring 502 near the rotating end. Multiple first positioning holes 505 are arranged in a ring through the center of the flange 504 near the edge. The multiple first positioning holes 505 are respectively sleeved on the outside of the multiple locking bolts 503. A flange ring 506 is provided on the side of the flange 504 away from the conductive slip ring 502. Multiple second positioning holes 507 are arranged in a ring through the center of the flange ring 506 near the edge. The multiple second positioning holes 507 are respectively sleeved on the outside of the multiple locking bolts 503. Multiple locking nuts 508 are arranged in a ring and fixedly connected at the center of the flange 506 away from the flange 504. The multiple locking nuts 508 are threaded onto the outer side of multiple locking bolts 503 away from the conductive slip ring 502. A protective steel sleeve 509 is fixedly fitted inside the flange ring 506. Three first rotating seats 5010 are arranged and fixedly connected at the upper end, lower end and center of both sides of the protective steel sleeve 509. An electric push rod 5011 is fixedly connected at the center of the flange 504 near the protective steel sleeve 509. The electric push rod 5011 is fitted inside the protective steel sleeve 509. A support plate 5012 is fixedly connected to the protective steel sleeve 509 away from the flange ring 506. A guide steel ring 5013 is fixedly fitted at the center of the support plate 5012. The telescopic end of the electric push rod 5011 is slidably fitted inside the guide steel ring 5013, and a cross connecting bracket 5014 is fixedly fitted at the telescopic end of the electric push rod 5011.

[0044] The drive mechanism 5 is powered by a servo motor 501, enabling the inner support mechanism 6 to rotate and open as needed. The servo motor 501 works in conjunction with multiple locking bolts 503 and conductive slip rings 502 to ensure stable operation of the motor and provide continuous power output. The electric push rod 5011 and the protective steel sleeve 509 work together to transmit power to the inner support mechanism 6, driving it to perform precise displacement and support operations. When the equipment is running, the servo motor 501 can drive the roll 701 and the fabric 702 to rotate through the four inner support mechanisms 6, while the conductive slip rings 502 provide stable power to the electric push rod 5011 when it rotates. Through the action of the drive mechanism 5, the inner support mechanism 6 can automatically adjust its support force and position according to the needs of the roll body 7, ensuring that the roll 701 is always in a stable working state.

[0045] As one implementation method in this embodiment, please refer to Figures 10-12 As shown, taking one of the internal support mechanisms 6 as an example, the internal support mechanism 6 includes three first connecting rods 601 and two second connecting rods 602. The three first connecting rods 601 are rotatably connected to the inside of the three first rotating seats 5010 near both sides. The second connecting rods 602 are rotatably connected to the inside of the cross connecting frame 5014 near both ends. The ends of the three first connecting rods 601 away from the first rotating seats 5010 are all rotatably connected to the second rotating seats 603. The ends of the second connecting rods 602 away from the cross connecting frame 5014 are rotatably connected to the third rotating seats 604. An inner support plate 605 is fixedly connected to one side of the seat 603 and the third rotating seat 604. A rubber anti-slip plate 606 is fixedly connected to the side of the inner support plate 605 away from the three second rotating seats 603 and the third rotating seat 604. Multiple rubber anti-slip strips 607 are arranged and fixedly connected to the side of the rubber anti-slip plate 606 away from the inner support plate 605. The drum 701 is fitted with four rubber anti-slip strips 607 on one side and four rubber anti-slip strips 607 on the other side at both ends. The drum 701 and the eight rubber anti-slip strips 607 are detachably connected.

[0046] The inner support mechanism 6, through a mechanical structure composed of the first connecting rod 601 and the second connecting rod 602, supports the inner wall of the drum 701 and drives the drum 701 to rotate. In cooperation with the cross connecting frame 5014, the inner support plate 605 can be accurately adjusted under the drive of the inner support mechanism 6 to ensure that the drum 701 can rotate smoothly and provide uniform tension to the fabric. In addition, the rubber anti-slip plate 606 and rubber anti-slip strip 607 provided on the inner support plate 605 effectively improve the friction against the inner wall of the drum 701, effectively preventing the drum 701 from slipping when rotating. The adjustability of the inner support mechanism 6 ensures that it is suitable for drums 701 of different sizes, significantly improving the adaptability and working efficiency of the equipment.

[0047] Working Principle: The support component 1 supports the entire coil system via the support plate 101. The upper side of the support plate 101 has a movable groove 102 and a mounting groove 103, allowing the adjustment mechanism 3 to adjust the position of the corresponding support component 4 as needed. During operation, the support plate 101 provides stable support, ensuring the stability of other components and preventing operational errors caused by unstable support. The movable groove 102 makes the adjustment mechanism 3 more flexible, while the mounting groove 103 provides installation space for another support component 4, enhancing the system's modularity and maintainability. The overall design enables the device to... Bearing a large weight load and avoiding equipment damage due to insufficient support, the tensioning assembly 2 consists of two first support plates 201 and two second support plates 203, and is connected to the first roller 202 and the second roller 204 through bearing sleeves. Its function is to ensure that the fabric 702 is fully tensioned on the roll 701 to improve the accuracy of the cutting process. Through the first roller 202 and the second roller 204, the tensioning assembly 2 can adjust the tension of the fabric to avoid the fabric loosening affecting the cutting quality. This structure can ensure that the tension force is evenly distributed, effectively improving the working stability and accuracy of the entire cutting system and reducing production errors caused by fabric loosening.

[0048] The adjustment mechanism 3 includes a positioning plate 301 and a linear guide rail 302. Precise adjustment of the position of the support component 4 is achieved through a lead screw 304 and a handwheel 305. The sliding of the positioning plate 301 within the movable groove 102 allows for fine-tuning of the support component 4's position as needed, ensuring accurate fabric tension and drum 701 positioning. The cooperation between the lead screw 304 and the handwheel 305 simplifies operation. Manual operation allows for precise adjustment of the spacing of the support component 4, ensuring the entire device can adapt to fabric drums 701 of different sizes, thus improving the equipment's versatility. The support component 4 is connected to the support component 1 via a support base plate 401 and works in conjunction with the adjustment mechanism 3. The support base plate 401, in cooperation with the guide sleeve 303, ensures the support component 4 moves smoothly during operation. The load-bearing plate 402 and reinforcing ribs 403 on the support base plate 401 enhance the rigidity and load-bearing capacity of the entire support structure, enabling it to stably support the entire fabric winding device and preventing structural deformation or instability caused by uneven stress.

[0049] The drive mechanism 5 is powered by a servo motor 501, enabling the inner support mechanism 6 to rotate and open as needed. The servo motor 501, in conjunction with multiple locking bolts 503 and conductive slip rings 502, ensures stable operation and provides continuous power output. The electric push rod 5011 and the protective steel sleeve 509 work together to transmit power to the inner support mechanism 6, driving it to perform precise displacement and support operations. During operation, the servo motor 501 can drive the roll 701 and the fabric 702 to rotate via the four inner support mechanisms 6, while the conductive slip rings 502 provide stable power to the electric push rod 5011 as it rotates. Through the action of the drive mechanism 5, the inner support mechanism 6 can automatically adjust its support strength and position according to the needs of the roll body 7. The inner support mechanism 6, through a mechanical structure consisting of a first connecting rod 601 and a second connecting rod 602, supports the inner wall of the drum 701 and drives its rotation. In cooperation with the cross connecting frame 5014, the inner support plate 605 can be accurately adjusted under the drive of the inner support mechanism 6 to ensure smooth rotation of the drum 701 and provide uniform tension to the fabric. Furthermore, the rubber anti-slip plate 606 and rubber anti-slip strip 607 on the inner support plate 605 effectively increase the friction against the inner wall of the drum 701, effectively preventing slippage during rotation. The adjustability of the inner support mechanism 6 ensures its applicability to drums 701 of different sizes, significantly improving the adaptability and working efficiency of the equipment.

[0050] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. An automatic cutting machine roll changing device, characterized in that: The device includes a roll body (7), which includes a roll (701). A fabric (702) is wound around the outside of the roll (701). Inside the roll (701), on both sides, there are inner support units for supporting the inside of the roll (701) and driving the roll (701) to rotate. The inner support unit includes four inner support mechanisms (6) for supporting the inner wall of the roll (701) and synchronously controlling the four inner support mechanisms (6) to open, close and rotate. The drive mechanism (5) is provided with a support component (4) for supporting the inner support unit on the outside of the two inner support units. The lower end of the two support components (4) is provided with a support component (1) for supporting the two support components (4). The upper side of the support component (1) is provided with an adjustment mechanism (3) for controlling the movement of one of the support components (4). The upper side of the support component (1) is provided with a tensioning component (2) for tensioning the fabric (702).

2. The automatic cutting machine roll changing device according to claim 1, characterized in that: The support assembly (1) includes a support plate (101), and a movable groove (102) is provided on one side of the upper end of the support plate (101) near one end of the movable groove (102). An installation groove (103) is provided on one side of the upper end of the support plate (101) near one end of the movable groove (102).

3. The automatic cutting machine roll changing device according to claim 2, characterized in that: The tensioning assembly (2) includes two first support plates (201) and two second support plates (203). The two first support plates (201) are fixedly connected to the center of the side of the support plate (101) that is far apart from each other. The two second support plates (203) are fixedly connected to one end of the center of the side of the support plate (101) that is far apart from each other. A first roller (202) is rotatably sleeved on the upper part of the center of the two first support plates (201) through a bearing. A second roller (204) is rotatably sleeved on the upper part of the center of the two second support plates (203) through a bearing.

4. The automatic cutting machine roll changing device according to claim 2, characterized in that: The adjustment mechanism (3) includes a positioning plate (301) and two linear guides (302). The positioning plate (301) is fixedly connected to one side of the support plate (101) near one end of the movable groove (102). The two linear guides (302) are respectively fixedly connected to the center of the lower inner wall of the movable groove (102) on both sides. Guide sleeves (303) are slidably sleeved on the upper outer side of the two linear guides (302). A lead screw (304) is rotatably sleeved on the upper inner center of the positioning plate (301) through a bearing. The end of the lead screw (304) away from the positioning plate (301) is rotatably sleeved on the center of the inner wall of the movable groove (102) away from the positioning plate (301) through a bearing. A handwheel (305) is fixedly connected to the end of the lead screw (304) near the positioning plate (301).

5. The automatic cutting machine roll changing device according to claim 4, characterized in that: Both of the support components (4) include a support base plate (401). One of the support base plates (401) is fixedly sleeved on the outside of the two guide sleeves (303), and the other support base plate (401) is fixedly sleeved inside the mounting groove (103). The support base plate (401) near the two guide sleeves (303) is threaded onto the outside of the lead screw (304). A load-bearing plate (402) is fixedly connected to the upper center of both support base plates (401). A reinforcing rib (403) is fixedly connected to the center of both sides of the two load-bearing plates (402) near both ends. The lower ends of the eight reinforcing ribs (403) are fixedly connected to the upper ends of the two support base plates (401). A connecting sleeve hole (404) is opened through the upper center of the two support base plates (401).

6. The automatic cutting machine roll changing device according to claim 4, characterized in that: The drive mechanism (5) includes a servo motor (501), which is fixedly sleeved inside the mating sleeve hole (404). A conductive slip ring (502) is fixedly sleeved on the outer side of the servo motor (501) near the rotating end. A plurality of locking bolts (503) are arranged in a ring and fixedly connected to the rotating end of the conductive slip ring (502) near the servo motor (501). A flange (504) is provided on the side of the conductive slip ring (502) near the rotating end. 4) Multiple first positioning holes (505) are arranged in a ring around the edge of the inner center. The multiple first positioning holes (505) are respectively fitted on the outside of multiple locking bolts (503). A flange ring (506) is provided on the side of the flange (504) away from the conductive slip ring (502). Multiple second positioning holes (507) are arranged in a ring around the edge of the inner center of the flange ring (506). The multiple second positioning holes (507) are respectively fitted on the outside of multiple locking bolts (503).

7. The automatic cutting machine roll changing device according to claim 6, characterized in that: Multiple locking nuts (508) are arranged in a ring and fixedly connected at the center of the flange ring (506) away from the flange (504) near the edge. Each locking nut (508) is threaded onto the outer side of multiple locking bolts (503) away from the conductive slip ring (502). A protective steel sleeve (509) is fixedly fitted inside the flange ring (506). Three first rotating seats (5010) are arranged and fixedly connected at the upper end, lower end, and center of both sides of the protective steel sleeve (509). The flange (504) is close to the protective steel sleeve (5010). 9) An electric push rod (5011) is fixedly connected to the center of one side. The electric push rod (5011) is sleeved inside the protective steel sleeve (509). A support plate (5012) is fixedly connected to the side of the protective steel sleeve (509) away from the flange ring (506). A guide steel ring (5013) is fixedly sleeved at the center of the support plate (5012). The telescopic end of the electric push rod (5011) is slidably sleeved inside the guide steel ring (5013), and a cross connecting frame (5014) is fixedly sleeved at the telescopic end of the electric push rod (5011).

8. The automatic cutting machine roll changing device according to claim 7, characterized in that: The internal support mechanism (6) includes three first connecting rods (601) and two connecting rods (602). The three first connecting rods (601) are rotatably connected to the inside of three first rotating seats (5010) on both sides. The second connecting rods (602) are rotatably connected to the inside of the cross connecting frame (5014) on one side near both ends. The end of each of the three first connecting rods (601) away from the first rotating seat (5010) is rotatably connected to a second rotating seat (603). The end of the second connecting rod (602) away from the first rotating seat (5010) is rotatably connected to the second rotating seat (603). A third rotating seat (604) is rotatably connected to one end of the cross connecting frame (5014). An inner support plate (605) is fixedly connected to one side of the three second rotating seats (603) and the third rotating seat (604). A rubber anti-slip plate (606) is fixedly connected to the side of the inner support plate (605) away from the three second rotating seats (603) and the third rotating seat (604). Multiple rubber anti-slip strips (607) are arranged and fixedly connected to the side of the rubber anti-slip plate (606) away from the inner support plate (605).

9. The automatic cutting machine roll changing device according to claim 8, characterized in that: Inside the drum (701), four rubber anti-slip strips (607) are respectively fitted on the outside of one side and four rubber anti-slip strips (607) on the other side, and the drum (701) and the eight rubber anti-slip strips (607) are detachably connected.

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