An intelligent alignment folding device for multi-layer composite surgical drapes

Abstract

This invention discloses an intelligent alignment and folding device for multi-layer composite surgical drapes, comprising a drape folding machine body, which includes a frame, a feeding roller, a controller, a tension adjustment unit, a W-shaped lateral folding unit, a reversing roller, and a first industrial camera. This invention uses the dual cameras of the first industrial camera to capture images vertically and symmetrically from the side of the drape's path, acquiring real-time image information of the drape's edges and surface. The data is transmitted to the controller, which analyzes the tension information of the multi-layer drape and the tension profile data of different layers based on the images. The controller then adjusts the expansion range and rotation speed of the tension adjustment unit in real-time to ensure the drape enters the subsequent processing stage in a stable posture. The entire process achieves automated, high-precision intelligent alignment, folding, and processing from feeding to final shaping, thus enabling the device to have more flexible and intelligent tension adjustment for multi-layer composite surgical drapes, and better adaptability.

Description

Technical Field

[0001] This invention relates to the field of surgical drape processing technology, and more specifically, to an intelligent alignment and folding device for multi-layer composite surgical drapes. Background Technology

[0002] The surgical drape folding device is a specialized piece of equipment used for the automated folding of medical non-woven surgical drapes. Its core function is to achieve precise, efficient, and sterile folding of the drape through a blade-type or reciprocating folding mechanism in conjunction with a servo control system. It is widely used in medical device production lines to improve folding consistency and reduce the risk of human contamination. Currently, the blade-type lateral folding mechanism or reciprocating folding device is the mainstream folding execution structure in automated drape production equipment. It is technologically mature, efficient, and widely used.

[0003] However, the current equipment still has the following shortcomings:

[0004] Firstly, although current folding devices also have tension adjustment functions, they are generally passive adjustments. They adjust by passively stretching and contracting according to the tension of the surgical drape during delivery. This method can guarantee the adjustment effect for single-layer surgical drapes, but when adjusting multi-layer composite surgical drapes, due to the tension differences between the composite materials of each layer, passive adjustment is difficult to adapt to the tension changes and is prone to delamination and wrinkles.

[0005] Secondly, current folding equipment typically uses a W-shaped fold for horizontal folding. When performing a W-shaped horizontal fold, due to the fixed W-guide structure, the folding width on both sides may shift and change as the tension at the front end is continuously adjusted, resulting in uneven sides of the final folded product, making it difficult to adapt to the multi-tension changes of multi-layer composite surgical drapes. Summary of the Invention

[0006] To address the problems existing in the prior art, the present invention aims to provide an intelligent alignment and folding device for multi-layer composite surgical drapes, which solves the problems of layering and wrinkling caused by the tension difference of each layer of material during the folding process, as well as the problem of folding width deviation caused by front tension adjustment.

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] An intelligent alignment and folding device for multi-layer composite surgical drapes includes a drape folding machine body. The drape folding machine body includes a frame, a feeding roller, a controller, a tension adjustment unit, a W-shaped transverse folding unit, a reversing roller, a first industrial camera, a second industrial camera, a three-stage insert-type transverse folding machine, and a cutting roller group. The feeding roller is mounted on the frame and is located on the left side of the frame for feeding the multi-layer composite surgical drape. The controller is fixedly mounted on the frame. The tension adjustment unit is movably mounted between the feeding roller and the W-shaped transverse folding unit. The first industrial camera is located between the cutting roller group and the tension adjustment unit. The W-shaped transverse folding unit is vertically arranged along the frame. The reversing roller is horizontally arranged above the W-shaped transverse folding unit. The second industrial camera is located above the reversing roller. The three-stage insert-type transverse folding machine is mounted at the rear of the frame, and the feeding direction of the three-stage insert-type transverse folding machine is perpendicular to the feeding direction of the feeding roller.

[0009] The tension adjustment unit includes a high-precision servo motor, a hollow rotating shaft, an inner push rod, multiple expansion units, and a linear cylinder. The high-precision servo motor and the linear cylinder are arranged opposite each other and coaxially fixed to the frame. The output end of the high-precision servo motor is fixedly connected to the hollow rotating shaft through a coupling. One end of the inner push rod is slidably inserted into the interior of the hollow rotating shaft. The movable end of the linear cylinder is rotatably connected to one end of the inner push rod. The expansion units are distributed in a ring on the outside of the hollow rotating shaft. The linear movement of the inner push rod drives the expansion units to expand and contract for adjustment.

[0010] As a further description of the above technical solution: the expansion unit includes an outer arc plate, a linearly arranged guide rod, a first spring, and an inner push block. One end of the guide rod is fixedly connected to the inner side of the outer arc plate, and the other end of the guide rod passes through and is dampedly slidably connected to the interior of the hollow rotating shaft. The first spring is sleeved on the outer side of the guide rod. One end of the first spring is fixedly connected to the inner side of the outer arc plate, and the other end of the first spring is fixedly connected to the outer side of the hollow rotating shaft. The end of the guide rod located inside the hollow rotating shaft is fixedly connected to the inner push block, and the inner push block and the outer side of the inner push rod slide in contact.

[0011] As a further description of the above technical solution: the inner side of the inner push block is provided with a tapered guide surface, and the outer side of the inner push rod is provided with a tapered guide groove that slides in contact with the tapered guide surface.

[0012] As a further description of the above technical solution: the first industrial camera is located on the side of the multi-layer composite surgical drape travel path, the first industrial camera is a dual camera, and the dual cameras of the first industrial camera are arranged vertically and symmetrically with respect to the multi-layer composite surgical drape travel path.

[0013] As a further description of the above technical solution: the cutting roller group consists of two synchronously rotating rollers, each equipped with a cooperating circumferential cutter and a cutter seat, and a multi-layer composite surgical drape can pass between the two synchronous rollers.

[0014] As a further description of the above technical solution: the W-shaped transverse folding unit includes a central vertical rod, an adjusting cylinder, two front-out units, and two sets of linkage rollers. The central vertical rod is movably mounted on the frame, and the adjusting cylinder is fixedly mounted on the frame. The movable end of the adjusting cylinder is fixedly connected to the outside of the central vertical rod. The two W-shaped transverse folding units are symmetrically distributed on both sides of the central vertical rod with the central vertical rod as the axis. The two sets of linkage rollers are movably mounted on both sides of the central vertical rod and communicate with the front-out units on both sides.

[0015] As a further description of the above technical solution: the forward-exit unit includes two hinge rods, guide wheels, sliding blocks, and two second springs. The opposite ends of the two hinge rods are rotatably connected to the outside of the guide wheels, and the other ends of the two hinge rods are respectively fixedly connected to the two sliding blocks. The sliding blocks slide dampedly into the frame. The opposite ends of the two second springs are fixedly connected to the sliding blocks, and the opposite ends of the two second springs are fixedly connected to the frame. One end of the linkage roller group is movably mounted on the central vertical rod. The linkage roller group is a double rotating roller group. The double rotating rollers of the linkage roller group extend through the top and bottom of the hinge rods and roll in contact with them.

[0016] As a further description of the above technical solution: the connection end of the linkage roller group and the central vertical rod is provided with an integrated turntable, and one end of each of the two rotating rollers of the linkage roller group rotates onto the integrated turntable.

[0017] Compared with the prior art, the advantages of this invention are:

[0018] (1) This solution uses the dual cameras of the first industrial camera to take vertical and symmetrical pictures from the side of the drape's travel path, collect image information of the edge and surface of the drape in real time, and transmit the data to the controller. The controller analyzes the tension information of the multi-layer drape and the tension pattern data of different layers based on the images, and adjusts the expansion range and rotation speed of the tension adjustment unit in real time to ensure that the drape enters the subsequent processing stage in a stable posture. The whole process realizes the automation, high-precision intelligent alignment, folding and processing from feeding to final forming, thus enabling the device to have more flexible and intelligent tension adjustment for multi-layer composite surgical drapes and better adaptability.

[0019] (2) This scheme continuously collects the edge offset data of the multi-layer composite surgical drape after W-folding on the reversing roller through the second industrial camera and transmits it to the controller. Then the controller drives the adjusting cylinder to push the central vertical rod to move and adjust and compensate according to the real-time offset data. With this structural design, when the tension of the multi-layer composite surgical drape is continuously adjusted at the front end, causing the folding width of the two sides to shift, the W-shaped folding unit can adjust the position and pressure of the folding mechanism on both sides to effectively compensate for the width shift caused by the tension change, thereby ensuring the neatness of the side of the final folded product and better adapting to the multi-tension change of the multi-layer composite surgical drape. Attached Figure Description

[0020] Figure 1 This is a frontal cross-sectional view of the present invention.

[0021] Figure 2 for Figure 1 Enlarged schematic diagram of the structure of section A in the middle;

[0022] Figure 3 for Figure 1 Enlarged schematic diagram of section B in the middle;

[0023] Figure 4 This is a top view of the structure of the present invention;

[0024] Figure 5 This is a partial three-dimensional structural schematic diagram of the present invention;

[0025] Figure 6 This is a schematic diagram of the three-dimensional structure of the central vertical rod of the present invention.

[0026] Explanation of the labels in the diagram:

[0027] 1. Frame; 2. Feeding roller; 3. Controller; 4. Tension adjustment unit; 41. High-precision servo motor; 42. Hollow rotating shaft; 43. Inner push rod; 431. Conical guide groove; 44. Outer expansion unit; 441. Outer arc plate; 442. Guide rod; 443. First spring; 444. Inner push block; 445. Conical guide surface; 45. Linear cylinder; 5. W-shaped transverse folding unit; 51. Central vertical rod; 52. Adjusting cylinder; 53. Forward extension unit; 531. Hinge rod; 532. Guide wheel; 533. Sliding block; 534. Second spring; 54. Linkage roller group; 541. Integrated turntable; 6. Reversing roller; 7. First industrial camera; 8. Second industrial camera; 9. Three-stage insert-type transverse folding machine; 10. Cutting roller group; 101. Synchronous roller. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0029] To address the problem that passive adjustment is insufficient to adapt to tension changes and can easily lead to delamination and wrinkling when adjusting multi-layer composite surgical drapes due to the tension differences between the composite materials in each layer, an Example 1 is proposed:

[0030] Please see Figures 1-6 In this embodiment, an intelligent alignment and folding device for multi-layer composite surgical drapes includes a drape folding machine body. The drape folding machine body includes a frame 1, a feeding roller 2, a controller 3, a tension adjustment unit 4, a W-shaped transverse folding unit 5, a reversing roller 6, a first industrial camera 7, a second industrial camera 8, a three-stage insert-type transverse folding machine 9, and a cutting roller group 10. The feeding roller 2 is mounted on the frame 1 and is installed on the left side of the frame 1 for feeding the multi-layer composite surgical drapes. The controller 3 is fixedly mounted on the frame 1. The tension adjustment unit 4 is movably mounted between the feeding roller 2 and the W-shaped transverse folding unit 5. The first industrial camera 7 is located between the cutting roller group 10 and the tension adjustment unit 4. On the side of the multi-layer composite surgical drape's travel path, the first industrial camera 7 is a dual-camera setup, with the dual cameras of the first industrial camera 7 arranged vertically and symmetrically along the multi-layer composite surgical drape's travel path. The W-shaped transverse folding unit 5 is vertically arranged along the frame 1, and the reversing roller 6 is horizontally arranged above the W-shaped transverse folding unit 5. The second industrial camera 8 is located above the reversing roller 6. The three-insertion blade type transverse folding machine 9 is installed behind the frame 1, and the feeding direction of the three-insertion blade type transverse folding machine 9 is perpendicular to the feeding direction of the feeding roller 2. The cutting roller group 10 consists of two relatively rotating synchronous rollers 101, each equipped with a cooperating ring cutter and a cutter seat. The multi-layer composite surgical drape passes between the two synchronous rollers 101.

[0031] The tension adjustment unit 4 includes a high-precision servo motor 41, a hollow rotating shaft 42, an inner push rod 43, multiple outward expansion units 44, and a linear cylinder 45. The high-precision servo motor 41 and the linear cylinder 45 are arranged opposite to each other and coaxially fixed to the frame 1. The output end of the high-precision servo motor 41 is fixedly connected to the hollow rotating shaft 42 through a coupling. One end of the inner push rod 43 can be slidably inserted into the interior of the hollow rotating shaft 42. The movable end of the linear cylinder 45 is rotatably connected to one end of the inner push rod 43. The outward expansion units 44 are distributed in a ring on the outside of the hollow rotating shaft 42. The linear movement of the inner push rod 43 drives the outward expansion and contraction adjustment of the outward expansion units 44.

[0032] The expansion unit 44 includes an outer arc plate 441, a linearly arranged guide rod 442, a first spring 443, and an inner push block 444. One end of the guide rod 442 is fixedly connected to the inner side of the outer arc plate 441, and the other end of the guide rod 442 passes through and is dampedly slidably connected to the inside of the hollow rotating shaft 42. The first spring 443 is sleeved on the outer side of the guide rod 442. One end of the first spring 443 is fixedly connected to the inner side of the outer arc plate 441, and the other end of the first spring 443 is fixedly connected to the outer side of the hollow rotating shaft 42. One end of the guide rod 442 located inside the hollow rotating shaft 42 is fixedly connected to the inner push block 444. The inner push block 444 and the outer side of the inner push rod 43 are in sliding contact. The inner side of the inner push block 444 is provided with a tapered guide surface 445, and the outer side of the inner push rod 43 is provided with a tapered guide groove 431 that slides in contact with the tapered guide surface 445.

[0033] In use, after the multi-layer composite surgical drape is released by the feeding roller 2, the tension of the drape is precisely controlled by the tension adjustment unit 4. When the linear cylinder 45 drives the inner push rod 43 to slide inside the hollow rotating shaft 42, the tapered guide groove 431 on the outer side of the inner push rod 43 interacts with the tapered guide surface 445 on the inner side of the inner push block 444, pushing the guide rod 442 to drive the outer arc plate 441 to expand outward, thereby pressing against the inner side of the drape to increase the tension. Conversely, when the linear cylinder 45 resets, the first spring 443 pulls the outer arc plate 441 to contract, reducing the tension. The high-precision servo motor 41 drives the hollow rotating shaft 42 to rotate the outer expansion unit 44 as a whole, ensuring that the drape is evenly stressed in the circumferential direction and avoiding wrinkles or stretching deformation caused by uneven local tension. During this process, the dual cameras of the first industrial camera 7 take vertical and symmetrical pictures from the side of the drape's travel path, collecting image information of the edge and surface of the drape in real time and transmitting the data. The controller 3 analyzes the tension information and tension pattern data of the multi-layer surgical drape based on the image analysis, and adjusts the expansion range and rotation speed of the tension adjustment unit 4 in real time to ensure that the drape enters the subsequent processing stage in a stable posture. After tension adjustment, the drape enters the W-shaped transverse folding unit 5 for initial folding, and then changes its direction of travel through the reversing roller 6. At this time, the second industrial camera 8 performs secondary image acquisition on the folded drape to further confirm the folding accuracy. Then, the drape is conveyed to the three-stage insert-type transverse folding machine 9 to complete the preset transverse folding process. Finally, the ring cutter on the two synchronous rollers 101 of the hole-cutting roller group 10 cooperates with the cutter seat to cut the surgical hole required at the designated position. The whole process realizes the automation, high-precision intelligent alignment folding and processing from feeding to final forming, thus enabling the device to have more flexible and intelligent tension adjustment for multi-layer composite surgical drapes and better adaptability.

[0034] Furthermore, to address the issue that the folding width on both sides may shift and change during the continuous adjustment of the front tension, resulting in uneven sides of the final folded product and difficulty in adapting to the multi-layered composite surgical drape under varying tension conditions, Example 2 is proposed:

[0035] Please see Figure 3 . Figure 4 and Figure 6 The W-shaped horizontal folding unit 5 includes a central vertical rod 51, an adjusting cylinder 52, two front-out units 53, and two sets of linkage rollers 54. The central vertical rod 51 is movably mounted on the frame 1, and the adjusting cylinder 52 is fixedly mounted on the frame 1. The movable end of the adjusting cylinder 52 is fixedly connected to the outside of the central vertical rod 51. The two W-shaped horizontal folding units 5 are symmetrically distributed on both sides of the central vertical rod 51 with the central vertical rod 51 as the axis. The two sets of linkage rollers 54 are movably mounted on both sides of the central vertical rod 51 and communicate with the front-out units 53 on both sides.

[0036] The front extension unit 53 includes two hinge rods 531, guide wheels 532, sliding blocks 533 and two second springs 534. The opposite ends of the two hinge rods 531 are rotatably connected to the outside of the guide wheels 532. The other ends of the two hinge rods 531 are fixedly connected to the two sliding blocks 533 respectively. The sliding blocks 533 slide dampedly into the frame 1. The opposite ends of the two second springs 534 are fixedly connected to the sliding blocks 533. The opposite ends of the two second springs 534 are fixedly connected to the frame 1. One end of the linkage roller group 54 is movably mounted on the central vertical rod 51. The linkage roller group 54 is a double rotating roller. The double rotating rollers of the linkage roller group 54 extend through the top and bottom of the hinge rods 531 respectively and roll in contact with them.

[0037] The connection end of the linkage roller group 54 and the central vertical rod 51 is provided with an integrated turntable 541, and one end of each of the two rotating rollers of the linkage roller group 54 rotates onto the integrated turntable 541.

[0038] In use, the central vertical rod 51 is adjusted laterally on the frame 1 by adjusting the cylinder 52, which serves as the basis for adjusting the width of the entire W-shaped horizontal folding unit 5. When the position of the central vertical rod 51 changes, the linkage roller group 54 on both sides will be displaced accordingly. Since the double rotating rollers of the linkage roller group 54 are in rolling contact with the top and bottom of the hinge rod 531 in the front output unit 53, this displacement is transmitted to the hinge rod 531 through the double rotating rollers. After being subjected to the force from the linkage roller group 54, the end of the hinge rod 531 connected to the guide wheel 532 will drive the guide wheel 532 to make a corresponding position adjustment, while the other end... One end will push the sliding block 533 to slide damped inside the frame 1, which changes the opening of the two hinge frames 531, thereby driving the guide wheel 532 to move horizontally and change the relative distance with the central vertical rod 51. The sliding of the sliding block 533 will compress or stretch the second spring 534. The second spring 534 will generate a corresponding elastic restoring force according to its deformation, which will act on the sliding block 533, thereby fine-tuning and buffering the position of the guide wheel 532, ensuring that the guide wheel 532 always maintains good contact with the material during the delivery of the multi-layer composite surgical drape, and can adaptively adjust the pressure according to the change of material tension.

[0039] Meanwhile, the integrated turntable 541 at the end of the linkage roller group 54 enables the double rollers to maintain stable rotation as they move with the central vertical rod 51 and adapt to changes in material tension, avoiding jamming or additional friction damage to the material due to position adjustments. During this process, the second industrial camera 8 continuously collects the edge offset data of the multi-layer composite surgical drape after W-folding on the reversing roller 6 in real time and transmits it to the controller 3. Then, the controller 3 drives the adjusting cylinder 52 to push the central vertical rod 51 to move and adjust and compensate according to the real-time offset data. Through this structural design, when the tension of the multi-layer composite surgical drape at the front end is continuously adjusted, causing the folding width on both sides to shift, the W-shaped folding unit 5 can adjust the position and pressure of the folding mechanism on both sides in real time through the active adjustment of the adjusting cylinder 52 and the coordinated cooperation of the front-out unit 53 and the linkage roller group 54, effectively compensating for the width shift caused by tension changes, thereby ensuring the neatness of the side of the final folded product and better adapting to the multi-tension changes of the multi-layer composite surgical drape.

[0040] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. An intelligent alignment and folding device for multi-layer composite surgical drapes, comprising a drape folding machine body, characterized in that: The drape folding machine body includes a frame (1), a feeding roller (2), a controller (3), a tension adjustment unit (4), a W-shaped horizontal folding unit (5), a reversing roller (6), a first industrial camera (7), a second industrial camera (8), a three-stage insert-type horizontal folding machine (9), and a hole-cutting roller group (10). The feeding roller (2) is installed on the frame (1) and is installed on the left side of the frame (1) for feeding multi-layer composite surgical drapes. The controller (3) is fixedly installed on the frame (1), and the tension adjustment unit (4) is movably installed. Between the feeding roller (2) and the W-shaped transverse folding unit (5), the first industrial camera (7) is located between the cutting roller group (10) and the tension adjustment unit (4). The W-shaped transverse folding unit (5) is vertically arranged along the frame (1). The reversing roller (6) is horizontally arranged above the W-shaped transverse folding unit (5). The second industrial camera (8) is located above the reversing roller (6). The three-blade transverse folding machine (9) is installed behind the frame (1), and the feeding direction of the three-blade transverse folding machine (9) is perpendicular to the feeding direction of the feeding roller (2). The tension adjustment unit (4) includes a high-precision servo motor (41), a hollow rotating shaft (42), an inner push rod (43), multiple expansion units (44), and a linear cylinder (45). The high-precision servo motor (41) and the linear cylinder (45) are arranged opposite to each other and coaxially fixed to the frame (1). The output end of the high-precision servo motor (41) is fixedly connected to the hollow rotating shaft (42) through a coupling. One end of the inner push rod (43) can be slidably inserted into the interior of the hollow rotating shaft (42). The movable end of the linear cylinder (45) is rotatably connected to one end of the inner push rod (43). The expansion units (44) are distributed in a ring on the outside of the hollow rotating shaft (42). The linear movement of the inner push rod (43) drives the expansion units (44) to expand and contract for adjustment.

2. The intelligent alignment and folding device for multi-layer composite surgical drapes according to claim 1, characterized in that: The expansion unit (44) includes an outer arc plate (441), a linearly arranged guide rod (442), a first spring (443), and an inner push block (444). One end of the guide rod (442) is fixedly connected to the inner side of the outer arc plate (441), and the other end of the guide rod (442) passes through and is dampedly slidably connected to the inside of the hollow rotating shaft (42). The first spring (443) is sleeved on the outer side of the guide rod (442). One end of the first spring (443) is fixedly connected to the inner side of the outer arc plate (441), and the other end of the first spring (443) is fixedly connected to the outer side of the hollow rotating shaft (42). One end of the guide rod (442) located inside the hollow rotating shaft (42) is fixedly connected to the inner push block (444), and the inner push block (444) slides in contact with the outer side of the inner push rod (43).

3. The intelligent alignment and folding device for multi-layer composite surgical drapes according to claim 2, characterized in that: The inner side of the inner push block (444) is provided with a tapered guide surface (445), and the outer side of the inner push rod (43) is provided with a tapered guide groove (431) that slides in contact with the tapered guide surface (445).

4. The intelligent alignment and folding device for multi-layer composite surgical drapes according to claim 1, characterized in that: The first industrial camera (7) is located on the side of the multi-layer composite surgical drape travel path. The first industrial camera (7) is a dual camera, and the dual cameras of the first industrial camera (7) are arranged vertically and symmetrically with respect to the multi-layer composite surgical drape travel path.

5. The intelligent alignment and folding device for multi-layer composite surgical drapes according to claim 1, characterized in that: The cutting roller group (10) consists of two synchronous rollers (101) that rotate relative to each other. Each of the two synchronous rollers (101) is provided with a cooperating circumferential cutter and a cutter seat. A multi-layer composite surgical drape can pass between the two synchronous rollers (101).

6. The intelligent alignment and folding device for multi-layer composite surgical drapes according to claim 1, characterized in that: The W-shaped horizontal bending unit (5) includes a central vertical rod (51), an adjusting cylinder (52), two front-out units (53), and two sets of linkage rollers (54). The central vertical rod (51) is movably mounted on the frame (1), and the adjusting cylinder (52) is fixedly mounted on the frame (1). The movable end of the adjusting cylinder (52) is fixedly connected to the outside of the central vertical rod (51). The two W-shaped horizontal bending units (5) are symmetrically distributed on both sides of the central vertical rod (51) with the central vertical rod (51) as the axis. The two sets of linkage rollers (54) are movably mounted on both sides of the central vertical rod (51) and communicate with the front-out units (53) on both sides.

7. The intelligent alignment and folding device for multi-layer composite surgical drapes according to claim 6, characterized in that: The forward extension unit (53) includes two hinge rods (531), a guide wheel (532), a sliding block (533), and two second springs (534). The opposite ends of the two hinge rods (531) are rotatably connected to the outside of the guide wheel (532), and the other ends of the two hinge rods (531) are fixedly connected to the two sliding blocks (533). The sliding blocks (533) slide damped into the frame (1). The opposite ends of the two second springs (534) are fixedly connected to the sliding blocks (533), and the opposite ends of the two second springs (534) are fixedly connected to the frame (1). One end of the linkage roller group (54) is movably installed on the central vertical rod (51). The linkage roller group (54) is a double rotating roller. The double rotating rollers of the linkage roller group (54) extend through the top and bottom of the hinge rods (531) and roll in contact with them.

8. The intelligent alignment and folding device for multi-layer composite surgical drapes according to claim 6, characterized in that: The connecting end of the linkage roller group (54) and the central vertical rod (51) is provided with an integrated turntable (541), and one end of each of the two rollers of the linkage roller group (54) rotates onto the integrated turntable (541).

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