Hemostatic bandage processing equipment and processing method thereof

Abstract

The invention is suitable for the technical field of hemostatic bandage processing, and provides hemostatic bandage processing equipment which comprises a conveying hot-pressing assembly used for hot-pressing cotton balls on hemostatic bandages. The conveying hot-pressing assembly comprises a power mounting frame and a conveying hot-pressing belt assembly, and the power mounting frame is used for providing power for a conveying hot-pressing belt contained in the conveying hot-pressing belt assembly and promoting the conveying hot-pressing belt to move in a closed-loop circulation mode; a plurality of hot-pressing holes are formed in the conveying hot-pressing belt, and hot-pressing pieces are mounted in the hot-pressing holes; non-stop and continuous processing are realized; enough pressure-maintaining residence time required by hot-pressing bonding is ensured, so that the bonding fastness is ensured, the situation that other procedures of the whole processing flow need to wait synchronously is avoided, and continuous high-speed production is realized; the processing method of the hemostatic bandage processing equipment comprises the steps of synchronous material conveying, dynamic pneumatic positioning and resetting, mechanical triggering type continuous hot pressing and continuous circulating production.

Description

Technical Field

[0001] This invention relates to the field of hemostatic bandage processing technology, and more specifically, to hemostatic bandage processing equipment and processing methods. Background Technology

[0002] Hemostatic bandages are fundamental medical devices in surgical emergency care and trauma management, primarily used to apply physical pressure to wounds to achieve rapid hemostasis. Traditional hemostatic bandages are typically composed of a simple combination of absorbent dressings (such as absorbent cotton or gauze) and external fixation materials (such as elastic bandages or non-woven fabrics). With technological advancements, integrated pressure bandages with superior performance have emerged. Their core feature lies in the secure bonding of highly absorbent compressed cotton balls with an elastic bandage substrate possessing excellent elastic recovery through processes such as thermoforming. This integrated structure not only ensures concentrated and uniform pressure distribution during use, improving hemostasis efficiency, but also simplifies the operation process, making it invaluable in battlefield first aid, pre-hospital emergency care, and everyday home medical scenarios.

[0003] Currently, automated processing equipment and methods for integrated hemostatic bandages are mainly designed around processes such as cutting, feeding, stacking, and bonding. A typical processing flow includes: cutting the elastic bandage substrate in roll form to a fixed length; precisely feeding pre-made compressed cotton balls or pads to the predetermined positions on the bandage substrate; and finally, bonding the cotton balls and bandage substrate together through hot pressing, ultrasonic welding, or adhesive bonding. Existing technical solutions generally employ intermittent or step-by-step processing cycles, meaning that material feeding, positioning, and bonding actions are performed sequentially within each processing cycle. For example, in the critical bonding process, the equipment needs to position the cotton ball and bandage between upper and lower hot press molds, apply a certain pressure and temperature, and maintain a necessary "pressure holding time" to allow the material to melt and the interface molecules to fully fuse, thereby ensuring that the bonding strength meets medical standards. This "processing-pressure holding-cooling-demolding" cycle is the mainstream technical path for achieving reliable bonding in current equipment of this type.

[0004] Although the aforementioned intermittent processing method can guarantee product quality, its inherent process logic leads to a significant "processing stagnation" problem, which severely restricts production efficiency. That is, the hot-press bonding process requires sufficient pressure holding time to ensure bonding strength. During this period, other processes in the entire process (such as feeding and cutting) must wait synchronously, causing periodic pauses in equipment operation. This pause makes the production cycle limited by the pressure holding time of the bonding process, making it impossible to achieve continuous high-speed production and increasing the energy consumption and time cost per unit product.

[0005] For example, in Chinese patent application No. 202223503033.7, entitled "An Integrated Cotton Ball Pressure Hemostatic Bandage Processing Device," the specific implementation discloses the following processing steps: the bandage is fed to the processing position by a gripper, the cotton ball is pushed onto the bandage, and then "the heated melting cutter moves down to heat-press and melt-seal the bandages on both sides." This description clearly indicates that the sealing (i.e., bonding) action is completed by the downward pressure and holding of the heated cutter, which inevitably requires a heat-pressing and curing cycle. During this period, the feeding, clamping, and other mechanisms must remain stationary and wait for the bonding to complete before the next cycle can begin. This case typically demonstrates that, within the existing technological framework, sacrificing processing continuity to ensure the quality of heat-pressing bonding is a technical contradiction that has not yet been effectively resolved. Therefore, there is an urgent need for a new type of equipment and processing method that can eliminate or significantly reduce processing downtime while ensuring bonding strength, in order to achieve efficient and energy-saving continuous production of hemostatic bandages. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies: in existing hemostatic bandage processing technology, hot-press bonding requires sufficient pressure holding time to ensure bonding strength. During this period, other processes in the entire processing flow must wait synchronously, causing periodic interruptions in equipment operation. This interruption limits the production cycle to the pressure holding time of the bonding process, making continuous high-speed production impossible and increasing the energy consumption and time cost per unit product. Therefore, this invention proposes a hemostatic bandage processing equipment and processing method.

[0007] The specific technical solution is as follows: a hemostatic bandage processing equipment, including a conveying hot-pressing assembly mounted on a mounting plate, the conveying hot-pressing assembly being used to heat-press cotton balls for hemostatic bandages; the conveying hot-pressing assembly includes a power mounting frame and a conveying hot-pressing belt assembly, the power mounting frame being mounted on the conveying hot-pressing belt assembly to provide power to the conveying hot-pressing belt included in the conveying hot-pressing belt assembly, causing the conveying hot-pressing belt to move in a closed loop; the conveying hot-pressing belt has multiple hot-pressing holes, the multiple hot-pressing holes being distributed along the conveying hot-pressing belt in an array; hot-pressing components are installed inside the hot-pressing holes, the hot-pressing components heat-press cotton balls for hemostatic bandages.

[0008] In the technical solution of the present invention, the hot pressing component includes a positioning frame and a hot pressing head. The hot pressing head includes a hot pressing platform and a hot pressing drive structure. The hot pressing platform is mounted on the hot pressing drive structure. A hot pressing cavity is opened at the end of the hot pressing platform away from the hot pressing drive structure. A heating guide wire is laid inside the hot pressing cavity. The hot pressing drive structure is driven after the hot pressing belt is driven to the bottom of the power mounting frame. It moves downward and drives the hot pressing platform to act on the cotton ball and the hemostatic bandage for hot pressing.

[0009] Furthermore, the hot-pressing drive structure includes a pusher plate and an elastic element, with the pusher plate mounted on top of the elastic element and the hot-pressing table mounted on the bottom of the elastic element.

[0010] Furthermore, the elastic element includes a support ring, which is fixed inside the hot pressing hole. Multiple L-shaped guide plates are slidably inserted on the support ring and are distributed in a circular array along the support ring. The support ring has grooves that cooperate with the L-shaped guide plates, and the L-shaped guide plates slide inside the grooves. One end of the L-shaped guide plate is connected to a spring, and the other end of the spring is connected to the support ring. The hot pressing table is installed at the bottom of the L-shaped guide plate.

[0011] Furthermore, the positioning frame includes a positioning ring and multiple L-shaped fixing plates. One end of the L-shaped fixing plate is vertically fixed to the positioning ring, and the other end of the L-shaped fixing plate is fixed to the hot-pressing drive structure. The multiple L-shaped fixing plates are distributed in a circular array along the positioning ring.

[0012] Furthermore, the positioning ring has an annular cavity inside, and a duct is connected to the annular cavity. The duct is connected to an exhaust fan. Multiple insertion rods are movably inserted into the inner wall of the positioning ring. Insertion channels are formed on the inner wall of the positioning ring to cooperate with the insertion rods. The insertion channels connect to the annular cavity. A piston is fixed inside the insertion rod in the insertion channel. The piston is movably assembled inside the insertion channel. An anti-detachment protrusion is provided at the outer opening of the insertion channel. A positioning ball is fixed at the end of the insertion rod away from the positioning ring.

[0013] In the technical solution of the present invention, the conveying hot pressing belt assembly further includes two drive belts, which are distributed on both sides of the conveying hot pressing belt and directly connected to the main body of the conveying hot pressing belt; the drive belts are provided with chains on their inner walls, and the chain power transmission is connected to the power mounting frame.

[0014] Furthermore, the power mounting frame includes a drive frame, which is interposed and mounted on the conveyor heat-pressing belt assembly. The drive frame includes a drive shaft, a drive sprocket, a support roller, a support beam, and a drive platform. The support roller and support beam are used to support the drive belt and the conveyor heat-pressing belt. The drive shaft and drive sprocket are assembled together, and the drive sprocket meshes with the chain. A U-shaped mounting plate is mounted on one end of the support beam, and a gearbox is mounted on the other end. The gearbox is connected to the drive shaft and drive sprocket via a power transmission connection. A drive motor is mounted on the gearbox, and the drive motor provides power to the drive shaft and drive sprocket through the gearbox. A support frame is mounted on the gearbox and drive motor, and the U-shaped mounting plate and support frame are mounted on the mounting plate.

[0015] Furthermore, the drive platform is mounted on the support beam and occupies three-quarters of the volume of the power mounting frame; the drive platform has a wedge-shaped surface at its front end, and the hot pressing head, which protrudes outward from the hot pressing hole at one end, will move downward by interacting with the wedge-shaped surface.

[0016] Another object of the present invention is to provide a processing method for the above-described hemostatic bandage processing equipment, comprising the following steps: Step 1: Synchronous Material Transfer The hemostatic bandage substrate, pre-set with multiple cotton balls at equal intervals, is pulled by the conveyor rollers to continuously and uniformly enter and pass through the working area below the conveyor heat pressing assembly. At the same time, the drive motor is started, and the power is transmitted through the gearbox and chain drive system, ultimately driving two closed-loop conveyor heat pressing belts. Through speed matching control, it is ensured that the running linear speed of the conveyor heat pressing belts is strictly synchronized with the feed speed of the hemostatic bandage, establishing a stable relative motion basis for subsequent dynamic processing. Step 2: Dynamic Pneumatic Positioning and Reset As the conveyor belt and the hemostatic bandage move synchronously, multiple hot press heads embedded in the conveyor belt move sequentially to positions above the cotton balls on the bandage. While the hot press heads and corresponding cotton balls move synchronously, the pneumatic positioning system is activated. An exhaust fan generates airflow, which is delivered through a duct to the annular cavity within the hot press head and then evenly distributed to each insertion channel. This pushes the piston, causing the insertion rod to extend outwards, which in turn moves the positioning ball towards the center of the positioning ring. This allows for lateral fine-tuning of the cotton ball, precisely correcting and fixing it to the center position directly below the hot press head. This process dynamically compensates for cotton ball positional shifts caused by mechanical vibration or feeding errors. After the positioning action is completed, the pneumatic system switches, releasing gas to create negative pressure within the annular cavity. This pulls the piston and insertion rod back to their original positions, disengaging the positioning ball from contact with the cotton ball, preparing for the next hot press step. Step 3: Mechanically triggered continuous hot pressing The hot press head, having completed cotton ball positioning, continues to move along the conveyor belt to the bottom area of ​​the fixed drive table. During movement, the protruding hot press drive structure of one end of the hot press head contacts the wedge-shaped inclined surface of the drive table, and is passively and forcibly pressed downwards by its constraint. The push plate then moves downwards, pressing multiple L-shaped guide plates arranged around it to overcome the resistance of the springs and move downwards together. Ultimately, this causes the hot press table to apply a preset temperature and pressure to the precisely positioned cotton ball and hemostatic bandage substrate passing below, achieving hot press bonding. The process of the hot press head passing through the drive table area is the pressure holding time. After moving out of the drive table, the constraint of the wedge-shaped surface is released, the compressed spring releases its restoring force, and the L-shaped guide plates smoothly lift the hot press table, separating it from the workpiece. Step 4: Continuous Cycle Production In the cyclical operation of the conveyor belt, steps two and three are automatically and sequentially executed by multiple hot pressing head units. The hemostatic bandage undergoes dynamic positioning and continuous hot pressing of all cotton balls in uninterrupted uniform linear motion, and finally outputs the finished product.

[0017] Compared with the prior art, the present invention has the following advantages: 1. A hemostatic bandage with multiple cotton balls placed at equal intervals is continuously driven by a conveyor roller to the underside of the conveyor heat-pressing assembly. The conveyor heat-pressing assembly drives the conveyor heat-pressing belt on the conveyor heat-pressing belt assembly through a power mounting frame, moving synchronously with the hemostatic bandage. During the synchronous movement of the conveyor heat-pressing belt and the hemostatic bandage, multiple heat-pressing holes will sequentially engage with multiple cotton balls on the hemostatic bandage. In this way, the hemostatic bandage and multiple cotton balls can be processed continuously without stopping while synchronously following the conveyor heat-pressing belt. This also ensures sufficient pressure holding time required for heat-pressing adhesion, which is beneficial to ensuring the adhesion strength and avoids other processes in the entire process having to wait synchronously, realizing continuous high-speed production and reducing energy consumption and time costs per unit product. 2. During the synchronous movement of the conveyor belt and hemostatic bandage, multiple hot-pressing holes will sequentially pass through the hot-pressing head and engage with multiple cotton balls on the hemostatic bandage. As the hot-pressing head and cotton balls move synchronously, the exhaust fan is activated. The exhaust fan sends air into the annular cavity through the air guide pipe, which distributes the air into the insertion channel and pushes the piston, causing the insertion rod to extend outward. This allows the insertion rod and positioning ball to move towards the center of the positioning ring, pushing the cotton ball to the center position of the hot-pressing head. This solves the problem of the cotton ball not being in the correct position on the hemostatic bandage due to mechanical vibration or other factors, achieving precise hot pressing of the cotton ball and hemostatic bandage and improving the quality of the hot pressing process of the hemostatic bandage. 3. Traditional solutions to cotton ball misalignment typically involve mechanical correction at a static workstation, which inevitably introduces pauses. This invention integrates a pneumatic positioning system directly into the continuously moving hot press head, making it the leading link in the hot pressing action. This not only eliminates the need for a separate correction station and the time consumption, but more importantly, the positioning completed during high-speed continuous movement utilizes the system's inertia. The flexible contact of the pneumatic method avoids cotton ball displacement or damage caused by sudden stops and starts. This optimizes the previously conflicting goals of precise positioning and continuous production, resulting in unexpected yield improvements and reduced material losses. 4. The hot press head is passively pressed down by a fixed wedge-shaped surface and uniformly reset by springs. This purely mechanical triggering method is directly coupled with the movement speed of the hot press belt. First, it ensures that the holding time experienced by each hot press head is absolutely equal (determined by the length of the drive table and the speed of the hot press belt), fundamentally eliminating the fluctuation in adhesive quality caused by differences in the response of the electrical or hydraulic control system. Second, the spring system provides an adaptive buffer. When there is a slight tolerance in the thickness of the cotton ball, the compression stroke of the spring can be finely adjusted accordingly, which can ensure sufficient contact and prevent overpressure damage. The stability and reliability of this passive mechanical pressure holding surpass the control precision of conventional active drive systems. 5. Multiple independent hot press head modules are integrated on a closed-loop conveyor hot press belt, forming a mobile "hot press workstation" loop. This structure essentially transforms multiple discrete static hot press stations into a spatially continuously distributed dynamic hot press field, resulting in extreme space utilization and thermal management efficiency. The hot press heads can be naturally cooled in non-working areas (such as the return path), avoiding energy accumulation and component thermal fatigue caused by continuous static heating. At the same time, a single drive source on the wedge-shaped surface of the drive table can cyclically drive all hot press heads, minimizing system complexity, energy consumption, and thermal load, achieving a leap in both production efficiency and equipment durability. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the hemostatic bandage processing equipment of the present invention; Figure 2 for Figure 1 Schematic diagram of the structure of the central transmission hot pressing assembly; Figure 3 for Figure 2 Exploded view of the central transmission hot pressing assembly; Figure 4 for Figure 2 Schematic diagram of the central power mounting bracket; Figure 5 for Figure 2 Schematic diagram of the structure of the hot-pressed belt assembly; Figure 6 This is a schematic diagram of the hot-pressed component in this invention; Figure 7 for Figure 6 A schematic diagram of the structure of the positioning frame; Figure 8 for Figure 7 A demonstration image showing the cotton ball positioned by the positioning frame in the middle; Figure 9 for Figure 6 Schematic diagram of the structure of the medium-temperature pressing head; Figure 10 for Figure 9 Schematic diagram of the structure of the hot press; Figure 11 for Figure 9 Schematic diagram of the hot-press drive structure; Figure 12 for Figure 11 A schematic diagram of the structure of the elastic element.

[0019] In the attached diagram, the following components are listed: mounting plate 1, hemostatic bandage 2, conveyor heat pressing assembly 3, power mounting frame 4, conveyor heat pressing belt assembly 5; U-shaped mounting plate 41, drive platform 42, support frame 43, drive frame 44, gearbox 45, drive motor 46; drive belt 51, conveyor heat pressing belt 52, heat pressing hole 53, heat pressing component 54, positioning frame 55, heat pressing head 56, air duct 551, L-shaped fixing plate 552, positioning ring 553, positioning ball 554, insert rod 555, cotton ball 556, heat pressing table 561, heat pressing drive structure 562, push plate 5621, elastic component 5622, L-shaped guide plate 5623, spring 5624, support ring 5625. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention.

[0021] In one embodiment of the present invention, such as Figures 1-3 , Figure 5 and Figure 6 As shown: Hemostatic bandage processing equipment, including a conveying hot pressing assembly 3 mounted via a mounting plate 1, the conveying hot pressing assembly 3 being used to heat press cotton balls 556 onto hemostatic bandages 2; The hemostatic bandage 2 and cotton ball 556 are both existing technologies, and their detailed structures can be found in existing literature and journals, and they can also be purchased directly from the market; they are not what this invention is meant to protect, and will not be described in detail here. The hot pressing assembly 3 includes a power mounting frame 4 and a hot pressing belt assembly 5. The power mounting frame 4 is mounted on the hot pressing belt assembly 5 and is used to provide power to the hot pressing belt 52 included in the hot pressing belt assembly 5, so as to cause the hot pressing belt 52 to move in a closed loop. Multiple hot pressing holes 53 are provided on the conveyor hot pressing belt 52, and the multiple hot pressing holes 53 are distributed in an array along the conveyor hot pressing belt 52; a hot pressing component 54 is installed inside the hot pressing hole 53, and the hot pressing component 54 presses the hemostatic bandage 2 cotton ball 556. Therefore, in existing hemostatic bandage processing technology, hot-press bonding requires sufficient pressure holding time to ensure adhesion strength. During this period, other processes in the entire process must wait synchronously, causing periodic interruptions in equipment operation. This interruption limits the production cycle to the pressure holding time of the bonding process, making continuous high-speed production impossible and increasing energy consumption and time costs per unit product. This application can achieve the following: A hemostatic bandage 2 with multiple cotton balls 556 placed at equal intervals is continuously driven by a conveyor roller (the conveyor roller is existing technology, which can be purchased directly from the market and is readily applicable; it is also something that those skilled in the art can choose to purchase according to their needs; it is not something to be protected by this invention and will not be described in detail here) to the underside of the conveyor heat-pressing assembly 3. The conveyor heat-pressing assembly 3 drives the conveyor heat-pressing belt 52 on the conveyor heat-pressing belt assembly 5 through the power mounting frame 4, moving synchronously with the hemostatic bandage 2. During the synchronous movement of the conveyor heat-pressing belt 52 and the hemostatic bandage 2, multiple heat-pressing holes 53 will sequentially engage with the multiple cotton balls 556 of the hemostatic bandage 2. In this way, the hemostatic bandage 2 and the multiple cotton balls 556 can achieve continuous and uninterrupted processing while synchronously following the conveyor heat-pressing belt 52. This also ensures sufficient pressure holding time required for heat-pressing adhesion, which is beneficial to ensuring the adhesion strength and avoiding the need for other processes in the entire process to wait synchronously, realizing continuous high-speed production and reducing the energy consumption and time cost per unit product.

[0022] In another embodiment of the present invention, such as Figure 6 , Figures 9-12 As shown: The hot pressing component 54 includes a positioning frame 55 and a hot pressing head 56. The hot pressing head 56 includes a hot pressing table 561 and a hot pressing drive structure 562. The hot pressing table 561 is mounted on the hot pressing drive structure 562. A hot pressing cavity is opened at one end of the hot pressing table 561 away from the hot pressing drive structure 562. A heating guide wire is laid inside the hot pressing cavity. The hot-press drive structure 562 is driven after being carried to the bottom of the power mounting frame 4 by the hot-press conveyor belt 52. It moves downward and drives the hot-press table 561 to act on the cotton ball 556 and the hemostatic bandage 2 for hot pressing.

[0023] Furthermore, such as Figure 11 and Figure 12 As shown: The hot pressing drive structure 562 includes a push disk 5621 and an elastic element 5622. The push disk 5621 is installed on the top of the elastic element 5622, and the hot pressing table 561 is installed on the bottom of the elastic element 5622.

[0024] like Figure 11 and Figure 12 As shown: The elastic element 5622 includes a support ring 5625, which is fixed inside the hot pressing hole 53. Multiple L-shaped guide plates 5623 are slidably inserted on the support ring 5625. The multiple L-shaped guide plates 5623 are distributed in a circular array along the support ring 5625. The support ring 5625 is provided with a sliding groove to cooperate with the L-shaped guide plates 5623. The L-shaped guide plates 5623 slide through the sliding groove. One end of the L-shaped guide plate 5623 is connected to a spring 5624, and the other end of the spring 5624 is connected to a support ring 5625; a hot press table 561 is installed at the bottom of the L-shaped guide plate 5623.

[0025] Therefore, after the hot pressing head 56 is driven by the hot pressing belt 52 to the bottom of the power mounting frame 4, the hot pressing drive structure 562 is driven, and the push plate 5621 pushes down multiple L-shaped guide plates 5623. As the L-shaped guide plates 5623 move downward and compress the spring 5624, they also drive the hot pressing table 561 to act on the cotton ball 556 and the hemostatic bandage 2 for hot pressing. After the hot pressing is completed, the restoring force of the spring 5624 will cause the hot pressing table 561 to separate from the cotton ball 556 and the hemostatic bandage 2.

[0026] In another embodiment of the present invention, such as Figures 6-8 As shown: The positioning frame 55 includes a positioning ring 553 and a plurality of L-shaped fixing plates 552. One end of the L-shaped fixing plate 552 is vertically fixed to the positioning ring 553, and the other end of the L-shaped fixing plate 552 is fixed to the hot-pressing drive structure 562 (specifically, the other end of the L-shaped fixing plate 552 is fixed to the support ring 5625); the plurality of L-shaped fixing plates 552 are distributed in a circular array along the positioning ring 553.

[0027] Furthermore, such as Figure 7 and Figure 8 As shown: The positioning ring 553 has an annular cavity inside, and a duct 551 is connected to the annular cavity. The duct 551 is externally connected to the exhaust fan. Multiple insertion rods 555 are movably inserted into the inner wall of the positioning ring 553. Insertion channels are provided on the inner wall of the positioning ring 553 to cooperate with the insertion rods 555. The insertion channels are connected to the annular cavity. A piston is fixed inside the insertion rod 555 and is movably assembled inside the insertion channel. An anti-detachment protrusion is provided at the outer end opening of the insertion channel. A positioning ball 554 is fixed at the end of the insertion rod 555 away from the positioning ring 553.

[0028] Exhaust fans are existing technology, readily available on the market and directly applicable; they can be freely selected by those skilled in the art according to their needs; they are not the subject of this invention and will not be described in detail here.

[0029] Therefore, during the synchronous movement of the hot pressing belt 52 and the hemostatic bandage 2, multiple hot pressing holes 53 are sequentially fastened to multiple cotton balls 556 of the hemostatic bandage 2 by the hot pressing head 56. When the hot pressing head 56 and the cotton balls 556 move synchronously, the exhaust fan is activated. The exhaust fan sends air into the annular cavity through the air guide pipe 551, which distributes the air into the insertion channel and pushes the piston, causing the insertion rod 555 to extend outward so that the insertion rod 555 and the positioning ball 554 move towards the center of the positioning ring 553, pushing the cotton ball 556 to the center position of the hot pressing head 56. This solves the problem of the cotton ball 556 not being in the correct position of the hemostatic bandage 2 due to mechanical vibration or other conditions, achieving precise hot pressing of the cotton ball 556 and the hemostatic bandage 2, and improving the quality of the hot pressing process of the hemostatic bandage 2. After the cotton ball 556 is positioned, the exhaust fan discharges the gas inside the annular cavity, creating a negative pressure inside the annular cavity, which causes the piston and the insertion rod 555 to reset.

[0030] In another embodiment of the present invention, such as Figures 3-5 As shown: The conveying hot pressing belt assembly 5 also includes two drive belts 51, which are distributed on both sides of the conveying hot pressing belt 52 and directly connected to the main body of the conveying hot pressing belt 52; the drive belts 51 are covered with chains on their inner walls, and the chain power transmission is connected to the power mounting frame 4.

[0031] Furthermore, such as Figure 4 As shown: The power mounting frame 4 includes a drive frame 44, which is inserted and mounted on the conveyor heat pressing belt assembly 5; the drive frame 44 includes a drive shaft, a drive sprocket, a support roller, a support beam and a drive platform 42, the support roller and the support beam are used to support the drive belt 51 and the conveyor heat pressing belt 52, the drive shaft and the drive sprocket are assembled together, and the drive sprocket is engaged with the chain; One end of the support beam is equipped with a U-shaped mounting plate 41, and the other end is equipped with a gearbox 45. The gearbox 45 is connected to the drive shaft and the drive sprocket for power transmission. The gearbox 45 is equipped with a drive motor 46, which provides power to the drive shaft and the drive sprocket through the gearbox 45. The gearbox 45 and the drive motor 46 are equipped with a support frame 43, and the U-shaped mounting plate 41 and the support frame 43 are mounted on the mounting plate 1.

[0032] Therefore, the power mounting bracket 4 starts the drive motor 46, which provides power to the drive shaft and drive sprocket through the gearbox 45. The drive sprocket meshes with the chain, and then drives the two drive belts 51 and the transmission heat pressing belt 52 to rotate in a closed loop through the chain; causing the transmission heat pressing belt 52 to move synchronously with the hemostatic bandage 2.

[0033] In another embodiment of the present invention, such as Figure 4As shown: The drive platform 42 is mounted on the support beam and occupies three-quarters of the volume of the power mounting frame 4; the drive platform 42 has a wedge-shaped surface at its front end, and the hot press head 56 with one end protruding outside the hot press hole 53 will move downward by interacting with the wedge-shaped surface (specifically, the hot press drive structure 562 with one end protruding outside the hot press hole 53 is moved downward by the wedge-shaped surface).

[0034] Therefore, after the hot pressing head 56 is driven to the bottom of the drive table 42 by the hot pressing belt 52, the hot pressing drive structure 562, which protrudes outward from the hot pressing hole 53, is moved downward by the wedge-shaped surface. This causes the push plate 5621 to push down multiple L-shaped guide plates 5623. As the L-shaped guide plates 5623 move downward and compress the spring 5624, they also drive the hot pressing table 561 to act on the cotton ball 556 and the hemostatic bandage 2 for hot pressing. After passing through the drive table 42, the restoring force of the spring 5624 will cause the hot pressing table 561 to separate from the cotton ball 556 and the hemostatic bandage 2.

[0035] In summary, the hemostatic bandage 2, with multiple cotton balls 556 placed at equal intervals, is continuously driven by the conveyor rollers to the underside of the conveyor heat-pressing assembly 3. The conveyor heat-pressing assembly 3 activates the power mounting bracket 4, which in turn activates the drive motor 46. The drive motor 46 provides power to the drive shaft and drive sprocket through the gearbox 45. The drive sprocket meshes with the chain, which in turn drives the two drive belts 51 and the conveyor heat-pressing belt 52 to rotate in a closed loop. This causes the conveyor heat-pressing belt 52 to move synchronously with the hemostatic bandage 2. During the synchronous movement of the conveyor heat-pressing belt 52 and the hemostatic bandage 2, multiple heat-pressing holes 53... The cotton balls 556 are sequentially fastened to the hemostatic bandage 2 via the heat-pressing head 56. As the heat-pressing head 56 and the cotton balls 556 move synchronously, the exhaust fan is activated. The exhaust fan sends air into the annular cavity through the air duct 551, which distributes it into the insertion channel. This pushes the piston, causing the insertion rod 555 to extend outwards. The insertion rod 555 and the positioning ball 554 then move towards the center of the positioning ring 553, pushing and positioning the cotton balls 556 to the center of the heat-pressing head 56. This corrects the issue of the cotton balls 556 not being in the correct position on the hemostatic bandage 2 due to mechanical vibration or other factors, achieving precise positioning. The hot-pressed cotton ball 556 and the hemostatic bandage 2 improve the quality of the hot-pressed processing of the hemostatic bandage 2. After the cotton ball 556 is positioned, the exhaust fan discharges the gas inside the annular cavity, creating negative pressure inside the annular cavity, which causes the piston and the insertion rod 555 to reset. After the hot-pressing head 56 is driven to the bottom of the drive table 42 by the hot-pressing belt 52, the hot-pressing drive structure 562, which protrudes outward from the hot-pressing hole 53, is moved downward by the wedge-shaped surface. This causes the pusher plate 5621 to push down multiple L-shaped guide plates 5623. The downward movement of the L-shaped guide plates 5623 compresses the spring 5624 and drives the hot-pressing table. 561 acts on the cotton ball 556 and the hemostatic bandage 2 for hot pressing; after passing through the drive table 42, the restoring force of the spring 5624 will cause the hot pressing table 561 to separate from the cotton ball 556 and the hemostatic bandage 2; in this way, the hemostatic bandage 2 and multiple cotton balls 556 can achieve continuous processing without stopping during the synchronous conveying of the hot pressing belt 52; it also ensures sufficient pressure holding time required for hot pressing and bonding, which is conducive to ensuring the bonding strength, avoiding the need for other processes in the entire process to wait synchronously, realizing continuous high-speed production, and reducing the energy consumption and time cost per unit product.

[0036] Traditional solutions to cotton ball 556 misalignment typically involve mechanical correction at a static workstation, which inevitably introduces pauses. This invention directly integrates a pneumatic positioning system onto the continuously moving hot press head 56, making it the leading element of the hot pressing action. This not only eliminates the need for a separate correction station and the associated time consumption, but more importantly, the positioning achieved during high-speed continuous movement utilizes the system's inertia. The flexible contact of the pneumatic method avoids displacement or damage to the cotton ball 556 caused by sudden stops and starts. This simultaneously optimizes the previously conflicting goals of precise positioning and continuous production, resulting in unexpected yield improvements and reduced material losses.

[0037] The hot press head 56 is passively pressed down by a fixed wedge-shaped surface and uniformly reset by the spring 5624. This purely mechanical triggering method is directly coupled with the movement speed of the conveying hot press belt 52. First, it ensures that the holding time experienced by each hot press head 56 is absolutely equal (determined by the length of the drive table 45 and the speed of the conveying hot press belt 52), fundamentally eliminating the fluctuation in adhesive quality caused by differences in the response of the electrical or hydraulic control system. Second, the system of spring 5624 provides an adaptive buffer. When there is a slight tolerance in the thickness of the cotton ball 556, the compression stroke of spring 5624 can be finely adjusted accordingly, which can ensure sufficient contact and prevent overpressure damage. The stability and reliability of this passive mechanical pressure holding surpass the control precision of conventional active drive systems.

[0038] Multiple independent hot press head modules 56 are integrated on a closed-loop conveyor hot press belt 52, forming a mobile "hot press workstation" loop. This structure essentially transforms multiple discrete static hot press stations into a dynamic hot press field that is continuously distributed in space, resulting in extreme space utilization and thermal management efficiency. The hot press head 56 can be naturally cooled in non-working areas (such as the return path), avoiding energy accumulation and component thermal fatigue caused by continuous static heating. At the same time, a single drive source on the wedge-shaped surface of the drive table can cyclically drive all hot press heads 56, minimizing system complexity, energy consumption, and thermal load, and achieving a leap in both production efficiency and equipment durability.

[0039] In another embodiment of the present invention, a processing method for the above-described hemostatic bandage processing equipment is provided, comprising the following steps: Step 1: Synchronous Material Transfer The hemostatic bandage substrate 2, pre-positioned with multiple cotton balls 556 at equal intervals, is pulled by the conveyor rollers to continuously and uniformly enter and pass through the working area below the conveyor heat pressing assembly 3. At the same time, the drive motor 46 is started, and the power is transmitted through the gearbox 45 and the chain drive system, ultimately driving the two closed-loop conveyor heat pressing belts 52. Through speed matching control, it is ensured that the running linear speed of the conveyor heat pressing belts 52 is strictly synchronized with the feed speed of the hemostatic bandage 2, establishing a stable relative motion basis for subsequent dynamic processing. Step 2: Dynamic Pneumatic Positioning and Reset During the synchronous movement of the conveyor heat-pressing belt 52 and the hemostatic bandage 2, multiple heat-pressing heads 56 embedded in the conveyor heat-pressing belt move sequentially to the position above the cotton ball 556 on the hemostatic bandage. When the heat-pressing head 56 and the corresponding cotton ball 556 move synchronously, the pneumatic positioning system is activated. The exhaust fan generates airflow, which is delivered to the annular cavity inside the heat-pressing head through the air guide pipe 551 and then evenly distributed to each insertion channel. This pushes the piston to extend the insertion rod 555 outward, causing the positioning ball 554 to converge towards the center of the positioning ring 553. This allows for lateral fine-tuning of the cotton ball, precisely correcting and fixing it to the center position directly below the heat-pressing head 56. This process dynamically compensates for the cotton ball's positional deviation caused by mechanical vibration or feeding errors. After the positioning action is completed, the pneumatic system switches, venting gas to create a negative pressure in the annular cavity. This pulls the piston and insertion rod 555 back to their original positions, and the positioning ball 554 disengages from the cotton ball, preparing for the next heat-pressing step. Step 3: Mechanically triggered continuous hot pressing The hot press head 56, having completed cotton ball positioning, continues to move along the conveyor hot press belt 52 to the bottom area of ​​the fixed drive table 42. The hot press drive structure 562, with one end of the hot press head 56 protruding outwards, contacts the wedge-shaped inclined surface of the drive table during movement, and is passively and forcibly pressed downwards under its constraint. The push plate 5621 then moves downwards, pressing multiple L-shaped guide plates 5623 arranged around it to overcome the resistance of the springs 5624 and move downwards together. Ultimately, this drives the hot press table 561 to apply a preset temperature and pressure to the precisely positioned cotton ball 556 and the hemostatic bandage substrate 2, which are passing below simultaneously, achieving hot press bonding. The process of the hot press head 56 passing through the drive table area is the pressure holding time. After moving out of the drive table, the constraint of the wedge-shaped surface is released, the compressed springs 5624 release their restoring force, and the L-shaped guide plates 5623 smoothly lift the hot press table 561, separating it from the workpiece. Step 4: Continuous Cycle Production In the cyclical operation of the conveyor heat-pressing belt 52, steps two and three are automatically and sequentially executed by multiple heat-pressing head units 56. The hemostatic bandage 2 undergoes dynamic positioning and continuous heat-pressing processes of all cotton balls 556 in uninterrupted uniform linear motion, and finally outputs the finished product.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A hemostatic bandage processing device, comprising a conveying heat-pressing assembly (3) mounted via a mounting plate (1), said conveying heat-pressing assembly (3) for heat-pressing cotton balls (556) onto hemostatic bandages (2); characterized in that, The hot pressing assembly (3) includes a power mounting bracket (4) and a hot pressing belt assembly (5). The power mounting bracket (4) is mounted on the hot pressing belt assembly (5) and is used to provide power to the hot pressing belt (52) included in the hot pressing belt assembly (5) to cause the hot pressing belt (52) to move in a closed loop. Multiple hot-pressing holes (53) are provided on the conveyor hot-pressing belt (52), and the multiple hot-pressing holes (53) are distributed in an array along the conveyor hot-pressing belt (52); a hot-pressing component (54) is installed inside the hot-pressing hole (53), and the hot-pressing component (54) presses the cotton ball (556) of the hemostatic bandage (2) with heat.

2. The hemostatic bandage processing equipment according to claim 1, characterized in that, The hot pressing component (54) includes a positioning frame (55) and a hot pressing head (56). The hot pressing head (56) includes a hot pressing table (561) and a hot pressing drive structure (562). The hot pressing table (561) is mounted on the hot pressing drive structure (562). The hot pressing table (561) has a hot pressing cavity at one end away from the hot pressing drive structure (562). A heating guide wire is laid inside the hot pressing cavity. The hot-press drive structure (562) is driven after being carried by the hot-press conveyor belt (52) to the bottom of the power mounting frame (4), and moves downward to drive the hot-press table (561) to act on the cotton ball (556) and the hemostatic bandage (2) for hot pressing.

3. The hemostatic bandage processing equipment according to claim 2, characterized in that, The hot press drive structure (562) includes a push plate (5621) and an elastic element (5622). The push plate (5621) is mounted on the top of the elastic element (5622), and the hot press table (561) is mounted on the bottom of the elastic element (5622).

4. The hemostatic bandage processing equipment according to claim 3, characterized in that, The elastic element (5622) includes a support ring (5625), which is fixed inside the hot pressing hole (53). Multiple L-shaped guide plates (5623) are slidably inserted on the support ring (5625). The multiple L-shaped guide plates (5623) are distributed in a ring array along the support ring (5625). The support ring (5625) is provided with a groove to cooperate with the L-shaped guide plates (5623). The L-shaped guide plates (5623) slide through the groove. One end of the L-shaped guide plate (5623) is connected to a spring (5624), and the other end of the spring (5624) is connected to the support ring (5625); The hot press table (561) is installed at the bottom of the L-shaped guide plate (5623).

5. The hemostatic bandage processing equipment according to claim 2, characterized in that, The positioning frame (55) includes a positioning ring (553) and multiple L-shaped fixing plates (552). One end of the L-shaped fixing plate (552) is vertically fixed on the positioning ring (553), and the other end of the L-shaped fixing plate (552) is fixed on the hot-pressing drive structure (562). The multiple L-shaped fixing plates (552) are distributed in a ring array along the positioning ring (553).

6. The hemostatic bandage processing equipment according to claim 5, characterized in that, The positioning ring (553) has an annular cavity inside it, and a duct (551) is connected to the annular cavity. The duct (551) is connected to the exhaust fan. Multiple insertion rods (555) are movably inserted on the inner wall of the positioning ring (553). An insertion channel is provided on the inner wall of the positioning ring (553) in conjunction with the insertion rods (555). The insertion channel is connected to the annular cavity. A piston is fixed inside the insertion rod (555) and the piston is movably assembled inside the insertion channel. An anti-detachment protrusion is provided at the outer end opening of the insertion channel. A positioning ball (554) is fixed at the end of the insertion rod (555) away from the positioning ring (553).

7. The hemostatic bandage processing equipment according to claim 1, characterized in that, The conveying hot pressing belt assembly (5) also includes two drive belts (51), which are distributed on both sides of the conveying hot pressing belt (52) and directly connected to the main body of the conveying hot pressing belt (52); the drive belts (51) have chains laid on their inner walls, and the chain power transmission is connected to the power mounting frame (4).

8. The hemostatic bandage processing equipment according to claim 7, characterized in that, The power mounting frame (4) includes a drive frame (44), which is inserted into the conveyor heat pressing belt assembly (5); the drive frame (44) includes a drive shaft, a drive sprocket, a support roller, a support beam and a drive platform (42), the support roller and the support beam are used to support the drive belt (51) and the conveyor heat pressing belt (52), the drive shaft and the drive sprocket are assembled together, and the drive sprocket is engaged on the chain; A U-shaped mounting plate (41) is mounted on one end of the support beam, and a gearbox (45) is mounted on the other end. The gearbox (45) is connected to the drive shaft and the drive sprocket. A drive motor (46) is mounted on the gearbox (45). The drive motor (46) provides power to the drive shaft and the drive sprocket through the gearbox (45). A support frame (43) is mounted on the gearbox (45) and the drive motor (46). The U-shaped mounting plate (41) and the support frame (43) are mounted on the mounting plate (1).

9. The hemostatic bandage processing equipment according to claim 7, characterized in that, The drive platform (42) is mounted on the support beam and occupies three-quarters of the volume of the power mounting frame (4); the drive platform (42) has a wedge-shaped surface at its front end, and the hot press head (56) with one end protruding outside the hot press hole (53) will move downward by interacting with the wedge-shaped surface.

10. A processing method for a hemostatic bandage processing device according to any one of claims 1-9, characterized in that, Includes the following steps: Step 1: Synchronous Material Transfer The hemostatic bandage substrate (2), pre-positioned with multiple cotton balls (556) at equal intervals, is pulled by the conveyor rollers to continuously and uniformly enter and pass through the working area below the conveyor heat pressing assembly (3); at the same time, the drive motor (46) is started, and the power is transmitted through the gearbox (45) and the chain drive system, ultimately driving the two closed-loop conveyor heat pressing belts (52); through speed matching control, it is ensured that the running linear speed of the conveyor heat pressing belts (52) is strictly synchronized with the feed speed of the hemostatic bandage (2), thus establishing a stable relative motion basis for subsequent dynamic processing; Step 2: Dynamic Pneumatic Positioning and Reset During the synchronous movement of the conveyor heat-pressing belt (52) and the hemostatic bandage (2), multiple heat-pressing heads (56) embedded in the conveyor heat-pressing belt move sequentially to the position above the cotton ball (556) on the hemostatic bandage. When the heat-pressing head (56) and the corresponding cotton ball (556) move synchronously, the pneumatic positioning system is activated, the exhaust fan generates airflow, which is delivered to the annular cavity inside the heat-pressing head through the air duct (551), and then evenly distributed to each insertion channel, pushing the piston to extend the insertion rod (555) outward. The positioning ball (554) is driven to converge towards the center of the positioning ring (553), thereby finely adjusting the cotton ball from the side, accurately correcting and fixing it in the center position directly below the hot press head (56); this process dynamically compensates for the cotton ball position offset caused by mechanical vibration or feeding error; after the positioning action is completed, the pneumatic system switches, exhausts the gas to form a negative pressure in the annular cavity, pulls the piston and the insertion rod (555) to reset, and the positioning ball (554) disengages from the cotton ball, preparing for the next step of hot pressing; Step 3: Mechanically triggered continuous hot pressing The hot press head (56) that has completed the positioning of the cotton ball continues to move with the hot press belt (52) to the bottom area of ​​the fixed drive table (42); the hot press drive structure (562) with one end of the hot press head (56) protruding outward contacts the wedge-shaped inclined surface of the drive table during the movement, and is passively and forcibly pressed downward by the constraint of it; the push plate (5621) moves down accordingly, pressing the multiple L-shaped guide plates (5623) arranged around it to overcome the resistance of the spring (5624) and move downward together, and finally drive the hot press table (561) to apply the preset temperature and pressure to the cotton ball (556) and the hemostatic bandage substrate (2) that are passing below synchronously and have been accurately positioned, so as to realize hot press bonding; the process of the hot press head (56) passing through the drive table area is the pressure holding time; After the drive table is removed, the constraint of the wedge surface is released, the compressed spring (5624) releases its restoring force, and the hot press table (561) is smoothly lifted by the L-shaped guide plate (5623) to separate it from the workpiece; Step 4: Continuous Cycle Production In the cyclic operation of the conveyor heat-pressing belt (52), the above steps two and three are automatically and sequentially executed by multiple heat-pressing head (56) units; the hemostatic bandage (2) undergoes the dynamic positioning and continuous heat-pressing process of all cotton balls (556) in uninterrupted uniform linear motion, and finally outputs the finished product.

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