A drive arrangement and method for a rotary function module of an outfeed shuttle and an infeed shuttle

Abstract

This invention discloses a transmission device and method for a rotating functional module of a feed shuttle and an infeed shuttle, relating to the field of chip testing technology. The device includes a feed shuttle disc, a pneumatic sandwich transmission belt, and a pneumatically coordinated variable-diameter tensioning wheel. The pneumatic sandwich transmission belt adopts a multi-layer composite structure, enabling autonomous switching between three modes: start-up buffering, high-speed precision transmission, and heavy-load buffering, depending on the operating conditions. Through independent pressure control of the honeycomb cavity zones, dynamic meshing of the flip-out toothed plates, and variable-diameter adjustment of the tensioning wheel, precise tension control, automatic deviation correction, and effective impact buffering are achieved during the transmission process. This invention significantly improves the positioning accuracy and operational stability of chip transmission, greatly reduces the risk of chip damage caused by start-up and stop impacts, has a reliable structure, strong adaptability, and is suitable for various high-precision chip testing equipment.

Description

Technical Field

[0001] This invention relates to the field of chip testing technology, and in particular to a transmission device and method for a rotating functional module of a feed shuttle and a discharge shuttle. Background Technology

[0002] In chip testing equipment, the shuttle, as a core rotating transmission component, directly affects the transmission accuracy and safety of the chip due to its mating structure with the drive belt and tension pulley. Currently, the drive belts commonly used in this field are mostly traditional flat belts, fixed toothed belts, or single airbag pneumatic belts. These structures have poor compatibility with the toothed pulleys of the shuttle and traditional tension pulleys, making it difficult to meet the stringent requirements of chip testing for high precision and low damage. Existing technologies mainly have the following problems: First, insufficient transmission accuracy. Traditional drive belts cannot achieve zoned tension adjustment and are prone to slippage and deviation during start-up, shutdown, or load changes, affecting the accuracy of chip positioning. Second, poor adaptability to working conditions. Fixed toothed belts have large meshing impacts, which can easily cause vibration damage to fragile chips, while flat belts are prone to slippage, and airbag belts cannot achieve dynamic switching between rigidity and flexibility, making it difficult to adapt to the transmission needs of multiple working conditions. Third, the coordination among the shuttle, drive belt, and tension pulley is weak, making it difficult to achieve precise meshing and tension linkage, affecting transmission synchronization. To address the aforementioned issues, current improvements primarily focus on material upgrades, such as using high-strength rubber or special fibers. While these can partially improve performance, they are costly and cannot fundamentally solve core problems like poor structural adaptability and impact damage to chips. Therefore, there is an urgent need to design a novel device and method that can achieve high-precision tension control, multi-condition adaptability, and low-damage transmission characteristics to meet the specific needs of the chip testing field. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a transmission device and method for the rotating functional modules of the feed shuttle and the infeed shuttle. By adjusting the internal air pressure of the pneumatic sandwich transmission belt, the surface of its reversible toothed plates is driven to dynamically engage and disengage with the toothed wheel of the feed shuttle disc. Combined with the real-time diameter adjustment of the tension wheel, the transmission system can autonomously switch between three modes: start-up buffering, high-speed precision transmission, and heavy-load buffering. Through the independent pressure regulation and adaptive pressure relief protection of the honeycomb partitioned pneumatic cavity, precise tension control, automatic deviation correction, and effective impact buffering are achieved. This improves the chip transmission positioning accuracy and operational stability, and significantly reduces the risk of chip damage from start-up and stop impacts. To achieve the above objectives, this invention provides the following technical solution:

[0004] A transmission device for a rotating function module of a feed shuttle and a feed shuttle, characterized in that it includes a shuttle disc, a pneumatic sandwich transmission belt, and a pneumatic cooperative variable diameter tensioning wheel; the pneumatic sandwich transmission belt and the variable diameter tensioning wheel cooperate to ensure the precise rotation of the shuttle disc through the rigid meshing of a flip-up toothed plate with the toothed wheel of the shuttle disc.

[0005] Furthermore, the pneumatic sandwich transmission belt is provided with a wear-resistant surface layer, a honeycomb-shaped partitioned pneumatic cavity, an elastic skeleton, a rotatable toothed plate, a transmission belt tooth tip, and an exhaust groove from the outside to the inside; the wear-resistant surface layer is uniformly distributed with the rotatable toothed plate along its length, and the root of the rotatable toothed plate is connected to the wear-resistant surface layer through a micro elastic hinge; the honeycomb-shaped partitioned pneumatic cavity is composed of multiple independent honeycomb cavities, and each honeycomb cavity is connected to the main air passage through a one-way vent valve; the elastic skeleton has an X-shaped structure, located at the bottom of the tooth root, and each segment of the elastic skeleton is fixed to the bottom of the corresponding honeycomb cavity.

[0006] Furthermore, the top of the rotatable toothed plate is provided with a transmission belt tooth tip, and the transmission belt tooth tip has an exhaust groove, which is rounded and treated with anti-static and anti-scratch treatment; in the uninflated state, the rotatable toothed plate is close to the wear-resistant surface, and in the inflated state, the rotatable toothed plate rotates 30° and stands up, meshing with the tooth groove of the toothed wheel of the feed shuttle disc.

[0007] Furthermore, in the honeycomb partitioned pneumatic cavity, adjacent honeycomb partitioned pneumatic cavities are separated by a flexible diaphragm, and the flexible diaphragm is provided with controllable flow guide holes; each honeycomb partitioned pneumatic cavity is provided with a diaphragm pressure trigger valve at the top, and each honeycomb partitioned pneumatic cavity is provided with a cross-shaped foldable connecting rod, and the intersection of the connecting rod is a movable hinge node.

[0008] Furthermore, the elastic skeleton is made of aramid fiber rope segments, each segment having a length that matches the side length of a single honeycomb cavity in the honeycomb partitioned pneumatic cavity.

[0009] Furthermore, the pneumatically coordinated variable diameter tensioning wheel includes a drive ring, a drive ring guide groove, an aperture ring, an aperture ring guide groove, an elastic toothed ring, a toothed groove, a variable diameter aperture blade, a blade shaft, an aperture fixing cylinder, a drive lever, a lever guide groove, a sliding shaft, and a rotating shaft; the drive ring is connected to the aperture ring via the drive lever; the variable diameter aperture blade is hinged to the aperture ring via the blade shaft, and the elastic toothed ring is sleeved on its outer side, and the elastic toothed ring is provided with a toothed groove that meshes with the rotatable toothed blade.

[0010] Furthermore, the diameter of the pneumatically coordinated variable diameter tensioning wheel is adjusted by the sliding shaft on the drive lever sliding axially along the guide groove of the drive lever to drive the drive ring to rotate, thereby changing the unfolding angle of the variable diameter aperture blade and realizing stepless diameter change.

[0011] Furthermore, the pneumatic sandwich transmission belt has three switchable transmission modes: starting mode: under low pressure, the flip-up teeth fit together, and the belt body is flexible; high-speed transmission mode: under medium pressure, the flip-up teeth stand up, and the belt body is rigid; heavy-load buffer mode: under high pressure, the cross-shaped foldable connecting rod straightens, the engagement depth increases, and the belt body has elastic buffering capacity.

[0012] Furthermore, a transmission method for a rotating functional module of a discharge shuttle and a feed shuttle includes the following steps:

[0013] Step S1: Start-up buffer stage: Control the honeycomb partitioned pneumatic cavity to be in a low-pressure state, so that the flip-out toothed plate fits against the wear-resistant surface, and at the same time adjust the pneumatic cooperative variable diameter tensioning wheel to the minimum diameter, so that the belt is in a flexible state, reducing the starting resistance and meshing impact of the material shuttle.

[0014] Step S2: High-speed transmission stage: Adjust the honeycomb partitioned pneumatic cavity to medium pressure, drive the rotatable toothed plate to flip and stand up, so that it meshes with the toothed wheel of the shuttle disc and the tooth groove of the pneumatic cooperative variable diameter tensioning wheel. At the same time, adjust the pneumatic cooperative variable diameter tensioning wheel to the middle diameter, so that the belt body turns into a rigid transmission state, and realize the high-speed and precise rotation of the shuttle disc.

[0015] Step S3: Heavy load buffer stage: When the load on the shuttle increases, the honeycomb partitioned pneumatic cavity is raised to a high pressure state, so that the cross-shaped foldable connecting rod is straightened and the engagement depth is increased, and the pneumatic cooperative variable diameter tensioning wheel is adjusted to the maximum diameter, and the impact is absorbed by the elastic deformation of the belt; if the pressure inside the cavity exceeds the preset threshold, the diaphragm pressure trigger valve automatically releases pressure to protect the belt structure.

[0016] Step S4: Skew correction stage: When the pneumatic sandwich drive belt is detected to be off-center, the attitude of the pneumatic cooperative variable diameter tensioning wheel is adjusted by driving the lever, so that it drives the belt to automatically center and correct itself, and restore stable transmission.

[0017] Step S5: Shutdown and Reset Stage: After completing the transmission task, the honeycomb partitioned pneumatic cavity is depressurized to normal pressure, so that the flip-up toothed plates return to the fit state, the belt body returns to flexibility, the shuttle disc is slowly braked, and the system is reset.

[0018] Compared with the prior art, the present invention provides a transmission device and method for the rotating functional module of the discharge shuttle and the inlet shuttle, which has the following beneficial effects:

[0019] 1. Multi-modal adaptation and low-damage chip protection: Through the collaboration of pneumatic sandwich transmission belt and variable diameter tensioning wheel, it can achieve multiple modes of switching between start-up buffer, high-speed precision and heavy-load buffer. During start-up, the flexible resistance reduction reduces the impact and avoids damage to the fragile chip. At high speed, the rigid meshing ensures transmission accuracy. It perfectly adapts to the core needs of chip testing, such as frequent start-up and stop and high-precision transmission, and solves the pain points of existing technology, such as large meshing impact and easy chip damage.

[0020] 2. Variable Diameter Interlocking Adaptation, Significantly Enhancing System Flexibility: Relying on the stepless diameter adjustment characteristics of the pneumatically coordinated variable diameter tensioner, the diameter can be dynamically fine-tuned through the linkage of the drive ring, aperture ring, and variable diameter aperture blades. This precisely matches the tension changes and tooth tip meshing requirements of the pneumatic sandwich transmission belt under different working conditions. Without replacing the dedicated tensioner components, it is compatible with the installation dimensions of different specifications of material shuttles and chip testing equipment, significantly reducing equipment adaptation and modification costs. Simultaneously, it adapts to the transmission requirements of multiple chip models, improving the scenario adaptability and equipment reusability of the entire transmission system. This solves the pain points of traditional fixed diameter tensioners, which have limited adaptability and require customized modifications.

[0021] 3. Precise tension control and efficient transmission: The honeycomb-type partitioned pneumatic cavity can achieve independent tension control, solving the problem of uneven tension in traditional transmission belts. It has high transmission efficiency, ensures the positioning accuracy of chip transmission, and meets the stringent requirements of chip testing for transmission synchronization. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the transmission device for the rotating functional module of the discharge shuttle and the inlet shuttle of the present invention;

[0023] Figure 2 This is a schematic diagram of the shuttle disc structure of the present invention;

[0024] Figure 3 This is a cross-sectional view of the multi-layer structure of the pneumatic sandwich transmission belt of the present invention;

[0025] Figure 4 The honeycomb-shaped partitioned pneumatic cavity of the present invention;

[0026] Figure 5 This is a schematic diagram of the starting configuration of the pneumatic sandwich transmission belt of the present invention;

[0027] Figure 6 This is a schematic diagram of the high-speed transmission configuration of the pneumatic sandwich transmission belt of the present invention;

[0028] Figure 7 This invention relates to a pneumatic sandwich drive belt heavy-duty buffer configuration.

[0029] Figure 8 Schematic diagram of the overall structure of the pneumatically coordinated variable diameter tensioner;

[0030] Figure 9 This is a partial structural diagram of the variable diameter tensioner wheel of the present invention;

[0031] Figure 10 This is a schematic diagram of the variable diameter aperture blade structure of the present invention;

[0032] Figure 11 This is a schematic diagram of the internal structure of the variable diameter tensioner of the present invention;

[0033] Figure 12 This is a schematic diagram showing the assembly relationship between the variable diameter aperture blades and the aperture ring of the present invention;

[0034] Figure 13 This is the working process of the transmission device for the rotating functional module of the discharge shuttle and the infeed shuttle of the present invention;

[0035] In the picture:

[0036] 1- Shuttle disc; 2- Pneumatic sandwich drive belt; 3- Pneumatic cooperative variable diameter tensioner;

[0037] 101-Bearing groove; 102-Gear; 103-Transmission; 104-Fixed shaft;

[0038] 201-Honeycomb partitioned pneumatic cavity; 202-Reversible toothed plate; 203-Transmission belt tooth tip; 204-Exhaust groove; 205-Elastic skeleton; 206-Wear-resistant surface layer; 207-Flexible diaphragm; 208-Controllable guide hole; 209-Cross-shaped foldable connecting rod;

[0039] 301-Drive ring; 302-Drive ring guide groove; 303-Aperture ring; 304-Aperture ring guide groove; 305-Elastic toothed ring; 306-Groove; 307-Variable diameter aperture blade; 308-Blade shaft; 309-Aperture fixing cylinder; 310-Drive lever; 311-Lever guide groove; 312-Sliding shaft; 313-Rotating shaft. Detailed Implementation

[0040] 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.

[0041] The following is based on the appendix Figure 1-13 The present invention will be described in detail, such as Figure 1 As shown, the present invention provides a transmission device for a rotating functional module of a feed shuttle and a feed shuttle, characterized in that it includes a feed shuttle disc 1, a pneumatic sandwich transmission belt 2, and a pneumatic cooperative variable diameter tensioning wheel 3; the pneumatic sandwich transmission belt 2 and the variable diameter tensioning wheel 3 cooperate to ensure the precise rotation of the feed shuttle disc 1 by rigidly meshing the reversible toothed plate 202 with the toothed wheel 102 of the feed shuttle disc 1.

[0042] Specifically, such as Figure 2As shown, the pneumatic sandwich transmission belt 2 is provided with a wear-resistant surface layer 206, a honeycomb partitioned pneumatic cavity 201, an elastic skeleton 205, a rotatable toothed plate 202, a transmission belt tooth tip 203, and an exhaust groove 204 from the outside to the inside. The wear-resistant surface layer 206 is provided with the rotatable toothed plate 202 evenly distributed along its length. The root of the rotatable toothed plate 202 is connected to the wear-resistant surface layer 206 through a micro elastic hinge. The honeycomb partitioned pneumatic cavity 201 is composed of multiple independent honeycomb cavities, and each honeycomb cavity is connected to the main air passage through a one-way vent valve. The elastic skeleton 205 has an X-shaped structure, located at the bottom of the tooth root, and each segment of the elastic skeleton 205 is fixed to the bottom of the corresponding honeycomb cavity.

[0043] Specifically, such as Figure 3 As shown, the top of the rotatable toothed plate 202 is provided with a transmission belt tooth tip 203, and the transmission belt tooth tip 203 has an exhaust groove 204, which is treated with arc transition and anti-static and anti-scratch treatment; in the uninflated state, the rotatable toothed plate 202 is close to the surface of the wear-resistant surface layer 206; in the inflated state, the rotatable toothed plate 202 is rotated 30° and stands up, meshing with the tooth groove 306 of the toothed wheel 102 of the shuttle disc 1.

[0044] Specifically, such as Figure 4 As shown, in the honeycomb partitioned pneumatic cavity 201, adjacent honeycomb partitioned pneumatic cavities 201 are separated by a flexible diaphragm 207, and the flexible diaphragm 207 is provided with a controllable guide hole 208; a diaphragm pressure trigger valve is provided at the top of each honeycomb partitioned pneumatic cavity 201, and a cross-shaped foldable connecting rod 209 is provided inside each honeycomb partitioned pneumatic cavity 201, and the intersection of the connecting rod is a movable hinge node.

[0045] The elastic skeleton 205 is made of aramid fiber rope in segments, and the length of each segment matches the side length of a single honeycomb cavity of the honeycomb partitioned pneumatic cavity 201.

[0046] Specifically, such as Figure 8-11 As shown, the pneumatically coordinated variable diameter tensioning wheel 3 includes a drive ring 301, a drive ring guide groove 302, an aperture ring 303, an aperture ring guide groove 304, an elastic toothed ring 305, a toothed groove 306, a variable diameter aperture blade 307, a blade shaft 308, an aperture fixing cylinder 309, a drive lever 310, a lever guide groove 311, a sliding shaft 312, and a rotating shaft 313; the drive ring 301 is connected to the aperture ring 303 through the drive lever 310; the variable diameter aperture blade 307 is hinged to the aperture ring 303 through the blade shaft 308, and the elastic toothed ring 305 is sleeved on its outer side, and the elastic toothed ring 305 is provided with a toothed groove 306 that meshes with the rotatable toothed blade 202.

[0047] Specifically, such as Figure 12As shown, the diameter of the pneumatically coordinated variable diameter tensioning wheel 3 is adjusted by the sliding shaft 312 on the drive lever 310 sliding axially along the lever guide groove 311 to drive the drive ring 301 to rotate, thereby changing the unfolding angle of the variable diameter aperture blade 307 and realizing stepless diameter change.

[0048] Specifically, such as Figure 5-7 As shown, the pneumatic sandwich transmission belt 2 has three switchable transmission modes: starting mode: under low pressure, the flip-out toothed plates 202 are in contact, and the belt body is flexible; high-speed transmission mode: under medium pressure, the flip-out toothed plates 202 are upright, and the belt body is rigid; heavy-load buffer mode: under high pressure, the cross-shaped foldable connecting rod is straightened, the engagement depth is increased, and the belt body has elastic buffering capacity.

[0049] Specifically, such as Figure 13 As shown, a transmission control method for a transmission device is characterized by comprising the following steps:

[0050] Step S1: Start-up buffer stage: Control the honeycomb partitioned pneumatic cavity 201 to be in a low-pressure state, so that the flip-out toothed plate 202 fits against the wear-resistant surface layer 206, and at the same time adjust the pneumatic cooperative variable diameter tensioning wheel 3 to the minimum diameter, so that the belt is in a flexible state, reducing the starting resistance and meshing impact of the shuttle disc 1.

[0051] Step S2: High-speed transmission stage: Adjust the honeycomb partitioned pneumatic cavity 201 to medium pressure state, drive the flip-up toothed plate 202 to flip and stand up, so that it meshes with the toothed wheel 102 of the shuttle disc 1 and the tooth groove 306 of the pneumatic cooperative variable diameter tensioning wheel 3, and at the same time adjust the pneumatic cooperative variable diameter tensioning wheel 3 to the middle diameter, so that the belt body turns into a rigid transmission state, and realizes the high-speed and precise rotation of the shuttle disc 1.

[0052] Step S3: Heavy load buffer stage: When the load on the shuttle 1 increases, the honeycomb partitioned pneumatic cavity 201 is raised to a high pressure state, so that the cross-shaped foldable connecting rod is straightened and the engagement depth is increased, and the pneumatic cooperative variable diameter tensioning wheel 3 is adjusted to the maximum diameter, and the impact is absorbed by the elastic deformation of the belt; if the pressure inside the cavity exceeds the preset threshold, the diaphragm pressure trigger valve automatically releases pressure to protect the belt structure;

[0053] Step S4: Skew correction stage: When the pneumatic sandwich drive belt 2 is detected to be running off-center, the attitude of the pneumatic cooperative variable diameter tensioning wheel 3 is adjusted by the drive lever 310, so that it drives the belt body to automatically center and correct itself, and restore stable transmission.

[0054] Step S5: Stop and reset stage: After completing the transmission task, the honeycomb partitioned pneumatic cavity 201 is depressurized to normal pressure, so that the flip-out toothed plate 202 returns to the fit state, the belt body returns to flexibility, the shuttle disc 1 is slowly braked, and the system is reset.

[0055] 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 transmission for a rotary function module of an outfeed shuttle and an infeed shuttle, characterized in that It includes a shuttle disc (1), a pneumatic sandwich drive belt (2) and a pneumatic cooperative variable diameter tensioning wheel (3); the pneumatic sandwich drive belt (2) and the variable diameter tensioning wheel (3) work together to ensure the precise rotation of the shuttle disc (1) through the rigid meshing of the reversible toothed plate (202) with the toothed wheel (102) of the shuttle disc (1); The pneumatic sandwich transmission belt (2) is provided with a wear-resistant surface layer (206), a honeycomb partitioned pneumatic cavity (201), an elastic skeleton (205), a rotatable toothed plate (202), a transmission belt tooth tip (203), and an exhaust groove (204) from the outside to the inside. The wear-resistant surface layer (206) is provided with the rotatable toothed plate (202) evenly distributed along its length. The root of the rotatable toothed plate (202) is connected to the wear-resistant surface layer (206) through a micro elastic hinge. The honeycomb partitioned pneumatic cavity (201) is composed of multiple independent honeycomb cavities, and each honeycomb cavity is connected to the main air passage through a one-way vent valve. The elastic skeleton (205) is an X-shaped structure located at the bottom of the tooth root, and each segment of the elastic skeleton (205) is fixed to the bottom of the corresponding honeycomb cavity. The top of the reversible toothed plate (202) is provided with a transmission belt tooth tip (203), and the transmission belt tooth tip (203) has an exhaust groove (204) and is treated with arc transition and anti-static and anti-scratch treatment; in the uninflated state, the reversible toothed plate (202) is close to the surface of the wear-resistant surface layer (206); in the inflated state, the reversible toothed plate (202) is rotated 30° and stands up, meshing with the tooth groove (306) of the toothed wheel (102) of the feed shuttle disc (1); In the honeycomb partitioned pneumatic cavity (201), adjacent honeycomb cavities are separated by a flexible diaphragm (207), and the flexible diaphragm is provided with a controllable flow guide hole (208); each honeycomb partitioned pneumatic cavity (201) is provided with a diaphragm pressure trigger valve at the top, and each honeycomb partitioned pneumatic cavity (201) is provided with a cross-shaped foldable connecting rod (209), and the intersection of the connecting rod is a movable hinge node; The pneumatically coordinated variable diameter tensioning wheel (3) includes a drive ring (301), a drive ring guide groove (302), an aperture ring (303), an aperture ring guide groove (304), an elastic toothed ring (305), a toothed groove (306), a variable diameter aperture blade (307), a blade shaft (308), an aperture fixing cylinder (309), a drive lever (310), a lever guide groove (311), a sliding shaft (312), and a rotating shaft (313); the drive ring (301) is connected to the aperture ring (303) through the drive lever (310); the variable diameter aperture blade (307) is hinged to the aperture ring (303) through the blade shaft (308), and the elastic toothed ring (305) is sleeved on its outer side, and the elastic toothed ring (305) is provided with a toothed groove (306) that meshes with the flip-up toothed plate (202); The diameter of the pneumatically coordinated variable diameter tensioning wheel (3) is adjusted by the sliding shaft (312) on the drive lever (310) sliding along the lever guide groove (311) to rotate the drive ring (301), thereby changing the unfolding angle of the variable diameter aperture blade (307) and realizing stepless diameter change.

2. A drive for a rotary function module of an outfeed shuttle and an infeed shuttle according to claim 1, characterized in that: The elastic skeleton (205) is made of aramid fiber rope in segments, and the length of each segment matches the side length of a single honeycomb cavity of the honeycomb partitioned pneumatic cavity (201).

3. The transmission device for the rotating functional module of the discharge shuttle and the infeed shuttle according to claim 2, characterized in that: The pneumatic sandwich transmission belt (2) has three switchable transmission modes: starting mode: under low pressure, the flip-out toothed plates (202) are in contact, and the belt body is flexible; high-speed transmission mode: under medium pressure, the flip-out toothed plates (202) are upright, and the belt body is rigid; heavy-load buffer mode: under high pressure, the cross-shaped foldable connecting rod is straightened, the meshing depth is increased, and the belt body has elastic buffering capacity.

4. The transmission control method for the transmission device according to claim 3, characterized in that, Includes the following steps: Step S1: Start-up buffer stage: Control the honeycomb partitioned pneumatic cavity (201) to be in a low-pressure state, so that the flip-out toothed plate (202) fits against the wear-resistant surface layer (206), and at the same time adjust the pneumatic cooperative variable diameter tensioning wheel (3) to the minimum diameter, so that the belt is in a flexible state, reducing the starting resistance and meshing impact of the material shuttle disc (1); Step S2: High-speed transmission stage: Adjust the honeycomb partitioned pneumatic cavity (201) to medium pressure, drive the flip-up toothed plate (202) to flip and stand up, so that it meshes with the toothed wheel (102) of the shuttle disc (1) and the tooth groove (306) of the pneumatic cooperative variable diameter tensioning wheel (3), and at the same time adjust the pneumatic cooperative variable diameter tensioning wheel (3) to the middle diameter, so that the belt body turns into a rigid transmission state, and realizes the high-speed and precise rotation of the shuttle disc (1); Step S3: Heavy load buffer stage: When the load on the shuttle disc (1) increases, the honeycomb partitioned pneumatic cavity (201) is raised to a high pressure state, so that the cross-shaped foldable connecting rod is straightened and the engagement depth is increased, and the pneumatic cooperative variable diameter tensioning wheel (3) is adjusted to the maximum diameter, and the impact is absorbed by the elastic deformation of the belt; if the pressure inside the cavity exceeds the preset threshold, the diaphragm pressure trigger valve automatically releases pressure to protect the belt structure; Step S4: Skew correction stage: When the pneumatic sandwich transmission belt (2) is detected to be running off-center, the attitude of the pneumatic cooperative variable diameter tensioning wheel (3) is adjusted by the drive lever (310) so that it drives the belt body to automatically center and correct itself, and restore stable transmission. Step S5: Stop and reset stage: After completing the transmission task, the honeycomb partitioned pneumatic cavity (201) is depressurized to normal pressure, so that the flip-out toothed plate (202) is restored to the fit state, the belt body is restored to flexibility, the shuttle disc (1) is slowly braked, and the system is reset.

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