Automatic production line and process for adhesive bandage manufacturing

Abstract

The invention discloses an automatic production line and process for adhesive bandage manufacturing. The automatic production line comprises an automatic material receiving and roll changing device, a material storage frame, a covering and pasting machine, a turning type material rotating device, a slitting device and a flaky material filling device. The automatic material receiving and reel changing device is used for providing base layer materials and achieving switching between the main unreeling disc and the auxiliary unreeling disc. The material storage frame is used for storing base-layer materials provided by the automatic material receiving and roll changing device; the application machine is used for applying each layer of material of the adhesive bandage to the base layer material; the turning type material transferring device is used for changing the material conveying direction. The slitting device is used for slitting the strip-shaped materials into sheet-shaped materials; the flaky material filling device is used for filling an inlet belt of the packer with flaky materials. All the devices are tightly matched and cooperatively work, the whole process from material feeding, processing to packaging is automatically and accurately controlled, manual intervention is reduced, the product quality problem caused by human factors is reduced, and the consistency and stability of the adhesive bandage product quality are guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of wound dressing manufacturing, and particularly relates to an automatic production line and process for wound dressing manufacturing. Background Art

[0002] In the existing automatic production lines for wound dressings, there are many technical problems to be solved. In the material supply link, when the base material unwind reel is switched, the production line often stops due to the complex and time-consuming switching process, seriously affecting production efficiency and increasing production costs. And some switching devices only fix the base material in a single layer, with poor connection stability and prone to problems such as material breakage. In terms of material buffering, the traditional buffer tank adopts the method of arranging guide rollers in a staggered up-and-down manner and storing materials in a continuous S shape, which will increase the length of the buffer tank, occupy a large amount of installation space, is not conducive to the reasonable layout of the production workshop, and also increases the equipment cost. In the process of material transmission, most of the existing transmission equipment is linear transmission and does not have a turning function. When the workshop space is limited, it is difficult to achieve the reasonable installation of equipment and the smooth transmission of materials. Moreover, the materials are prone to deviation during transmission, lacking effective deviation correction and limiting measures, affecting the normal progress of subsequent processes. In addition, in the link of filling sheet materials, the traditional device has problems such as slow filling speed and easy scattering of materials, resulting in low packaging efficiency and unable to meet the needs of large-scale production. In summary, the existing automatic production lines for wound dressings have deficiencies in production efficiency, space utilization, material transmission, and packaging. There is an urgent need for a new type of automatic production line and process to solve these problems, so as to improve the quality and efficiency of wound dressing production, reduce production costs, and meet market demands. Summary of the Invention The technical problem to be solved by the present invention is to provide an automatic production line and process for wound dressing manufacturing, in which each device closely cooperates and works together, realizing automatic precise control in the whole process from material supply, processing to packaging, reducing manual intervention, reducing product quality problems caused by human factors, and ensuring the consistency and stability of the quality of wound dressing products.

[0003] To solve the above technical problems, the technical solution adopted by the present invention is: An automatic production line for wound dressing manufacturing, including an automatic material receiving and reel changing device, a storage rack, an applicator, a turning type material transfer device, a slitting device, and a sheet material filling device; The automatic material receiving and reel changing device is used to provide the base material and realize the switching between the main unwind reel and the auxiliary unwind reel; The storage rack is used to buffer the base material provided by the automatic material receiving and reel changing device; The applicator is used to stick each layer of materials of the wound dressing on the base material; The turning type material transfer device is used to change the direction of material transmission; The slitting device is used to slit strip-shaped materials into sheet-shaped materials; The sheet-shaped material filling device is used to fill sheet-shaped materials onto the inlet belt of the packing machine.

[0004] Preferably, the automatic material receiving and roll changing device includes a main unwinding disc and a secondary unwinding disc. The materials of the main unwinding disc and the secondary unwinding disc pass through the working frame. The working frame is provided with a first clamping plate and a second clamping plate. The first clamping plate is driven to move by a first push rod, and the second clamping plate is driven to move by a second push rod; A first suction roller is provided above the first clamping plate, and a second suction roller is provided above the second clamping plate; The working frame is provided with a first hob device for cutting the material on one side of the first clamping plate; The working frame is provided with a second hob device for cutting the material on one side of the second clamping plate.

[0005] Preferably, both ends of the rotating shaft of the second suction roller are installed on a moving mounting seat, and the moving mounting seat is driven to move by a suction roller driving cylinder; A functional discharge rotating roller is provided above the first suction roller. The functional discharge rotating roller cooperates with a pressing plate, and the pressing plate is driven to move by a cylinder; The first suction roller and the second suction roller are provided with negative pressure holes for adsorbing adhesive tapes.

[0006] Preferably, the storage rack includes a U-shaped groove. The U-shaped groove is provided with a first guiding roller located at the upper part of the U-shaped groove. A second guiding roller is provided below the first guiding roller, and a third guiding roller is provided beside the second guiding roller. The second guiding roller and the third guiding roller are located at the lower part of the U-shaped groove; A fourth guiding roller is provided above the third guiding roller. A fifth guiding roller is provided obliquely below the fourth guiding roller. A sixth guiding roller is provided obliquely above the fifth guiding roller. A seventh guiding roller is provided obliquely below the sixth guiding roller. An eighth guiding roller is provided obliquely above the seventh guiding roller. A ninth guiding roller is provided obliquely below the eighth guiding roller. A tenth guiding roller is provided obliquely above the ninth guiding roller; The first guiding roller, the fourth guiding roller, the sixth guiding roller, the eighth guiding roller, and the tenth guiding roller are located at the upper part of the U-shaped groove; the second guiding roller, the third guiding roller, the fifth guiding roller, and the seventh guiding roller are located at the lower part of the U-shaped groove; The eighth guiding roller is directly above the sixth guiding roller, and the tenth guiding roller is directly above the fourth guiding roller; The ninth guiding roller is directly above the fifth guiding roller, and the fifth guiding roller is located between the eighth guiding roller and the tenth guiding roller.

[0007] Preferably, the turning type material transfer device includes a suspension bracket. A sliding track is provided at the bottom of the suspension bracket. A sliding block is slidably mounted on the sliding track. The sliding block is connected to a corner bracket. A material transfer roller is provided on the corner bracket. The material transfer roller is used in cooperation with the feeding roller and the discharging roller. The installation angle of the material transfer roller is different from that of the feeding roller; The corner bracket is connected to a first moving block. The first moving block is driven to move by a corner bracket driving mechanism; The corner bracket driving mechanism includes a first lead screw. The first lead screw is in threaded cooperation with the first moving block. The first lead screw is rotatably mounted on the suspension bracket. The first lead screw is driven to rotate by a motor or manually rotated.

[0008] Preferably, a limiting block is provided between the material transfer roller and the feeding roller. The limiting block is driven to move by a limiting block driving device. The limiting block is used to prevent the material from separating from the feeding roller; The limiting block driving device includes a second moving block. The second moving block is in threaded connection with a second lead screw. The second moving block is connected to the limiting block.

[0009] Preferably, the sheet material filling device includes a rotating rod. A chute is provided on the rotating rod. The chute is in sliding cooperation with a sliding rod. The sliding rod is connected to a movable rod through a connecting member. And the sliding rod is hinged to the connecting member; A filling pressing plate is provided at the end of the movable rod. The filling pressing plate is used to cooperate with the filling scraping device; The movable rod is in sliding cooperation with a slider. The slider is in sliding cooperation with a slide rail; The slide rail is mounted on a base plate. The rotating rod is mounted on the base plate through a rotating shaft; The filling scraping device includes two oppositely arranged scraping belt conveyors. The scraping belt conveyors are vertically installed. The filling pressing plate is used to quickly press down the sheet material on the scraping belt conveyor.

[0010] Preferably, the system further includes a roller positioning pin mechanism. The roller positioning pin mechanism is used to temporarily limit the first suction roller or the second suction roller; The roller positioning pin mechanism includes a clamping block. An active pin chute is provided in the clamping block. The active pin chute includes an active pin front slot and an active pin rear slot. The active pin front slot and the active pin rear slot are connected; An active pin is provided in the active pin chute. A partition is provided on the active pin. The partition is used to slide in the active pin front slot. A clamping groove is provided at the rear end of the active pin. The clamping groove is in cooperation with a damping pin. The damping pin is installed in a damping pin chute; Internal threads are provided on the inner wall of the active pin front slot. The active pin front slot is in threaded connection with an external thread adjusting cap. A spring is provided between the external thread adjusting cap and the partition; The front end of the active pin is hemispherical. The active pin is in sliding cooperation with the inner wall of the external thread adjusting cap.

[0011] Preferably, the entrance belt of the baling machine is a double-belt material dividing conveyor line, which includes a first conveyor belt and a second conveyor belt. A plurality of first partitions are installed on the first conveyor belt, and a plurality of second partitions are installed on the second conveyor belt. Partition gaps are formed between adjacent first partitions and second partitions, and the spacing of the partition gaps is adjusted by changing the conveying speed of the first conveyor belt and the second conveyor belt.

[0012] A production process of an automatic production line for manufacturing wound dressings, comprising the following steps: S1: The automatic material receiving and reel changing device is started. Under normal working conditions, the main unwinding reel separately provides two layers of base material including substrate and peeling film, and the auxiliary unwinding reel is in standby state. When the main unwinding reel is working, the staff will stick the first adhesive tape on the edge of the second clamping plate in advance, and the second clamping plate will clamp the base material of the auxiliary unwinding reel, with the adhesive side of the adhesive tape facing the base material; at the same time, the second adhesive tape is adsorbed on the first suction roller, with the adhesive side facing outwards; when the material on the main unwinding reel is almost used up, the first hob device and the second hob device are used, and the first hob device cuts off the main unwinding reel. The base material on the reel, the second roller cuts the first tape and presses it on the fracture of the base material, so that the base material on the auxiliary unwinding reel is connected to the fracture; then, the base material continues to be pulled, the first suction roller rotates, and the second tape is attached to the other side of the fracture, completing the switching of the main and auxiliary unwinding reels. During this process, the suction roller driving cylinder drives the mobile mounting seat to squeeze and clamp the material through the first suction roller and the second suction roller, and the functional discharge roller cooperates with the pressing plate to clamp the base material, ensuring that the front end process of the functional discharge roller does not stop when switching; S2: The strip-shaped base material output from the automatic material receiving and reel changing device enters the material storage rack, and passes by the first guide roller, the second guide roller, the third guide roller, the fourth guide roller, the fifth guide roller, the sixth guide roller, the seventh guide roller, the eighth guide roller, the ninth guide roller, the tenth guide roller, the eleventh guide roller and the twelfth guide roller in sequence. The material passes by the material storage rack in a spiral route, and the material is cached. At the same time, this layout saves space when storing materials of the same length. S3: The cached base material enters the applicator, which sequentially attaches the various layers of material required for the band-aid to the base material to form a complete band-aid strip material; S4: The band-shaped wound patch material that has been applied enters the turning transfer device, and the feed roller conveys the material to the transfer roller. The transfer roller is 45 degrees to the axis of the feed roller and perpendicular to the axis of the discharge roller. Under the transition effect of the transfer roller, the material makes a 90-degree turn and is transferred to the discharge roller and then enters the guide roller. If the material deviates, the corner frame driving mechanism drives the corner frame to drive the transfer roller to translate for deviation correction, and the limit block limits the material under the action of the limit block driving device to prevent it from leaving the feed roller. S5: The strip-shaped band-aid material passes through the turning type material transfer device and enters the slitting device, which slits the strip-shaped material into sheet-shaped band-aid materials; S6: The sheet-shaped band-aid materials after slitting enter the double-belt material distribution and conveying line. Under the control of their respective drive motors, the first conveyor belt and the second conveyor belt adjust the distance between the first partition plate and the second partition plate by adjusting the transmission speed, so as to realize the adjustment of the storage interval length of the sheet-shaped materials, and complete the conveying and buffering of the sheet-shaped materials; S7: The double-belt material distribution and conveying line conveys the sheet-shaped materials to the sheet-shaped material filling device. The rotating rod is driven by a motor to rotate, driving the movable rod and the filling pressure plate at the end to do an elliptical reciprocating motion. The filling pressure plate cooperates with the vertically installed filling scraper device to quickly press down the sheet-shaped materials on the scraper belt conveyor and fill them into the inlet belt of the packaging machine, completing the automatic production process of the band-aid.

[0013] The present invention can achieve the following beneficial effects: 1. The automatic material receiving and roll changing device realizes the rapid switching of the base material through the unique design of switching between the main and auxiliary unwind reels, and cooperates with the hob device, the suction roller and the adhesive tape. During the switching process, the process at the front end of the functional discharge roller does not stop, greatly reducing the downtime caused by material replacement, significantly improving the production efficiency, and ensuring the continuous and stable operation of the production line. 2. The storage rack adopts an innovative layout of guide rollers, making the strip-shaped materials wind and buffer in a similar spiral route. Compared with the traditional continuous S-shaped storage method, when storing the same length of materials, the length of the buffer tank is greatly shortened, effectively saving the equipment installation space, and being conducive to the compact layout and efficient use of space in the production workshop. 3. The turning type material transfer device realizes a 90° turn of the material through the transfer roller, solving the equipment installation problem caused by the space limitation in the workshop; at the same time, it is equipped with an automatic deviation correction function and a limit structure, which can adjust the material transmission position in real time, avoid material deviation or detachment, ensure the accuracy and stability of material transmission, and provide guarantee for the smooth progress of subsequent processes.

[0014] 4. The double-belt material distribution and conveying line is controlled by two motors to control the first and second conveyor belts respectively, and can flexibly adjust the distance between the first partition plate and the second partition plate, so as to realize the precise control of the storage interval length of the sheet-shaped materials, meet the material conveying and buffering under different production requirements, and enhance the adaptability of the production line to various production scenarios. 5. The rotating rod of the sheet-shaped material filling device drives the movable rod and the filling pressure plate to do an elliptical reciprocating motion, and cooperates with the scraper belt conveyor, which can quickly and stably fill the sheet-shaped band-aid materials into the inlet belt of the packaging machine. Compared with manual filling or traditional devices, it effectively avoids material scattering, greatly improves the filling speed and packaging efficiency, and reduces the labor intensity and labor cost. 6. All devices cooperate closely and work in coordination to achieve automated and precise control over the entire process from material supply, processing to packaging, reduce manual intervention, lower product quality problems caused by human factors, and ensure the consistency and stability of the quality of band-aid products. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the drawings and embodiments: Figure 1 It is a production system diagram of the present invention; Figure 2 It is a three-dimensional structure diagram of the automatic material receiving and roll changing device of the present invention; Figure 3 It is a mounting position diagram of the moving mounting base and the suction roller driving cylinder of the automatic material receiving and roll changing device of the present invention; Figure 4 It is a mounting position diagram of the second clamping plate and the second push rod of the automatic material receiving and roll changing device of the present invention; Figure 5 It is a mounting structure diagram of the first suction roller and the second suction roller of the automatic material receiving and roll changing device of the present invention; Figure 6 For Figure 5 Enlarged view at A in Figure 7 It is a top view of the automatic material receiving and roll changing device of the present invention; Figure 8 It is a front view of the automatic material receiving and roll changing device of the present invention; Figure 9 It is a mounting position diagram of the pressing plate of the automatic material receiving and roll changing device of the present invention; Figure 10 It is a structure diagram of the storage rack of the present invention; Figure 11 It is a three-dimensional structure diagram of the turning type material transfer device of the present invention Figure 1 ; Figure 12 It is a three-dimensional structure diagram of the turning type material transfer device of the present invention Figure 2 ; Figure 13 It is a three-dimensional structure diagram of the turning type material transfer device of the present invention Figure 3 ; Figure 14 It is a three-dimensional structure diagram of the turning type material transfer device of the present invention Figure 4 ; Figure 15 It is a working principle diagram of the transfer roller, the feeding transfer roller and the discharging transfer roller for material transfer of the present invention; Figure 16 It is a three-dimensional structure diagram of the sheet material filling device of the present invention; Figure 17 It is a three-dimensional structure diagram of the present invention (the filling scraper device is not shown); Figure 18Front view of the present invention (the packing scraper device is not shown); Figure 19 3D structure diagram of the double-belt material distribution conveyor line of the present invention; Figure 20 Front view of the double-belt material distribution conveyor line of the present invention; Figure 21 Sectional view of the roller positioning pin mechanism of the present invention; Figure 22 External structure diagram of the roller positioning pin mechanism of the present invention; Figure 23 Cooperation diagram of the damping pin and the movable pin of the roller positioning pin mechanism of the present invention; Figure 24 Effect diagram of the use of the roller positioning pin mechanism of the present invention.

[0016] In the figure: frame 1, main unwinding reel 2, auxiliary unwinding reel 3, working frame 4, first clamping plate 51, second clamping plate 52, first push rod 61, second push rod 62, first suction roller 71, second suction roller 72, moving mounting seat 8, suction roller driving cylinder 9, functional discharge roller 10, pressing plate 11, first hob device 12, second hob device 13, negative pressure hole 14; First guiding roller 15, second guiding roller 16, third guiding roller 17, fourth guiding roller 18, fifth guiding roller 19, sixth guiding roller 20, seventh guiding roller 21, eighth guiding roller 22, ninth guiding roller 23, tenth guiding roller 24, eleventh guiding roller 25, twelfth guiding roller 26, U-shaped groove 27; Hanger 28, sliding track 29, sliding block 30, corner bracket 31, transfer roller 32, feeding roller 33, discharging roller 34, first moving block 35, first lead screw 36, second moving block 37, second lead screw 38, sliding rod 39, limiting block 40; Rotating rod 41, chute 42, sliding rod 43, movable rod 44, packing pressing plate 45, slider 46, slide rail 47, base plate 48, packing scraper device 49; Clamping block 50, movable pin 51, partition 52, damping pin 53, annular clamping groove 54, damping pin chute 55, external thread adjusting cap 56, spring 57; front-end groove 201 of the movable pin; First conveyor belt 58, second conveyor belt 59, first partition 60, second partition 61; A - Automatic material receiving and roll changing device; B - Storage rack; C - Applicator; D - Curved transfer device; E - Slitting device; F - Sheet material packing device. Detailed implementation manners

[0017] The preferred solution is as follows Figures 1 to 24As shown in the figure, an automatic production line and process for manufacturing wound plasters, including an automatic material receiving and rewinding device, a material storage rack, a plaster applicator, a turning material transfer device, a slitting device, and a sheet material stuffing device; The automatic material receiving and rewinding device is used to provide the base material and realize the switching between the main unwind reel and the auxiliary unwind reel; The material storage rack is used to buffer the base material provided by the automatic material receiving and rewinding device; The plaster applicator is used to make the wound plasters into sheet form and pack them into wrapping paper; The turning material transfer device is used to change the direction of material transmission; The slitting device is used to slit the strip material into sheet materials; The sheet material stuffing device is used to fill the sheet materials onto the inlet belt of the packing machine.

[0018] The structures and functions of each device are introduced as follows: I. Automatic material receiving and rewinding device: This device includes a frame 1, on which there are a main unwind reel 2 and an auxiliary unwind reel 3. The materials of the main unwind reel 2 and the auxiliary unwind reel 3 pass through a working frame 4. On the working frame 4, there are a first clamping plate 51 and a second clamping plate 52. The first clamping plate 51 is driven to move by a first push rod 61, and the second clamping plate 52 is driven to move by a second push rod 62; Above the first clamping plate 51, there is a first suction roller 71, and above the second clamping plate 52, there is a second suction roller 72.

[0019] The application scenario of the present invention is for the production and preparation of wound plasters. The main unwind reel 2 and the auxiliary unwind reel 3 are used to provide the base material. The base material has two layers, one layer is the base material, and the other layer is the release film. Under normal working conditions, the main unwind reel 2 provides the base material alone, and the auxiliary unwind reel 3 is in a standby state. In order to facilitate the rapid switching of the auxiliary unwind reel 3, during the operation of the main unwind reel 2, a piece of adhesive tape (named the first adhesive tape) is attached to the edge of the second clamping plate 52, and the base material of the auxiliary unwind reel 3 that needs to be switched at any time is clamped at the second clamping plate 52. The adhesive side of the adhesive tape at the second clamping plate 52 faces the side of the base material. In addition, another piece of adhesive tape (named the second adhesive tape) is adsorbed on the first suction roller 71. The adhesive side of this adhesive tape faces outward, and the non - adhesive side is attached to the first suction roller 71.

[0020] When switching, the cutting device is used to first cut off the base material on the main unwinding reel 2, and the first adhesive tape is first pasted on one side of the base material using the adhesive sticking mechanism, so that the base material on the auxiliary unwinding reel 3 is connected to the fracture of the base material on the main unwinding reel 2, forming a preliminary connection. Then, as the base material continues to be pulled, the first suction roller 71 rotates to stick the second adhesive tape on the other side of the fracture, forming a second fixation. In this way, the front and back sides of the cut position of the base material are fixed with adhesive tape, which improves the stability of the connection. On the other hand, the base material itself is a two-layer structure, avoiding fixing only one layer of material.

[0021] In this embodiment, in order to realize the cutting of the base material, the first adhesive tape is simultaneously attached to the fracture. A rolling cutter device is selected, namely a first rolling cutter device 12 and a second rolling cutter device 13. The first rolling cutter device 12 and the second rolling cutter device 13 have the same structure and are distributed in a mirror image. Specifically, the working frame 4 is provided with a first rolling cutter device 12, and the first rolling cutter device 12 is used to cut the material located on one side of the first clamping plate 51. The working frame 4 is provided with a second rolling cutter device 13, and the second rolling cutter device 13 is used to cut the material located on one side of the second clamping plate 52.

[0022] The basic principle of the rolling cutter device is: it includes a rolling element that can roll, the rolling element is installed on a rolling element mounting frame, and the rolling element mounting frame is driven to move by a cylinder. When the rolling element moves along the clamping plate (i.e., the first clamping plate 51 or the second clamping plate 52), the rolling element and the upper edge of the clamping plate form a shear force (similar to a scissors structure), and the base material is cut. When the first rolling cutter device 12 is in operation, the second rolling cutter device 13 is also in operation, and the rolling element of the second rolling cutter device 13 can just cut the first adhesive tape and press it on the fracture of the base material.

[0023] In this embodiment, the first adhesive tape is manually attached to the second clamping plate 52 by the staff in advance, so as to be switched at any time. Correspondingly, the second adhesive tape is also manually attached to the first suction roller 71 by the staff in advance. Whenever a switch is made, the staff needs to manually replenish the adhesive tape.

[0024] Based on the above-mentioned cutting and gluing principles, the first roller cutter device 12 and the second roller cutter device 13 can be replaced by other similar structures. As long as the devices can complete the cutting of the base material and the pressing work, they belong to the protection scope of the present invention.

[0025] Further, in order to assist the first hob device 12 and the second hob device 13 in working, when the first hob device 12 and the second hob device 13 are working, the materials at the upper ends of the first hob device 12 and the second hob device 13 are in a fixed state. To implement a structure for fixing the upper-end materials, in this embodiment, both ends of the rotating shaft of the second air suction roller 72 are installed on the movable mounting seat 8, and the movable mounting seat 8 is driven to move by the air suction roller driving cylinder 9.

[0026] The air suction roller driving cylinder 9 drives the movable mounting seat 8 to move. Through the extrusion action of the first air suction roller 71 and the second air suction roller 72, the materials at the upper ends of the first hob device 12 and the second hob device 13 are clamped.

[0027] Another function of the first air suction roller 71 and the second air suction roller 72 clamping the base materials is that when the base materials are continuously pulled, it will just drive the first air suction roller 71 and the second air suction roller 72 to rotate. In this way, the second adhesive tape attached to the first air suction roller 71 will be attached to the fracture position.

[0028] Based on the above principle, the positions of the negative pressure holes on the first air suction roller 71 and the second air suction roller 72 are set in advance, and their positions are determined according to the height between the first hob device 12 and the first air suction roller 71. When the first air suction roller 71 rotates, the second adhesive tape can just rotate to the fracture position.

[0029] Further, a functional discharge rotating roller 10 is provided above the first air suction roller 71. The functional discharge rotating roller 10 cooperates with the pressing plate 11, and the pressing plate 11 is driven to move by a cylinder. When the first hob device 12 and the second hob device 13 are working, the pressing plate 11 is driven to move by the cylinder, so that the pressing plate 11 and the functional discharge rotating roller 10 cooperate to clamp the base materials. During the entire switching process, the base materials below the functional discharge rotating roller 10 will not be pulled, and the process at the front end of the functional discharge rotating roller 10 will not stop because a buffer device is provided at the process rear end of the functional discharge rotating roller 10. The buffer device stores a certain amount of materials, which is sufficient for other devices to work without stopping.

[0030] II. Storage rack: The storage rack of the present invention is a space-saving storage rack. It includes a first guiding roller 15 provided on a U-shaped groove 27. The first guiding roller 15 is located at the upper part of the U-shaped groove. A second guiding roller 16 is provided below the first guiding roller 15, and a third guiding roller 17 is provided beside the second guiding roller 16. The second guiding roller 16 and the third guiding roller 17 are located at the lower part of the U-shaped groove; Above the third guide roller 17, there is a fourth guide roller 18. Diagonally below the fourth guide roller 18, there is a fifth guide roller 19. Diagonally above the fifth guide roller 19, there is a sixth guide roller 20. Diagonally below the sixth guide roller 20, there is a seventh guide roller 21. Diagonally above the seventh guide roller 21, there is an eighth guide roller 22. Diagonally below the eighth guide roller 22, there is a ninth guide roller 23. Diagonally above the ninth guide roller 23, there is a tenth guide roller 24.

[0031] The usage scenarios of this storage rack include: wound dressing preparation, non-woven fabric preparation, bandage preparation, etc., and are used for caching a part of strip materials. Common cache slots are as Figure 2 shown, including guide rollers arranged in a staggered up-and-down manner. The strip materials bypass the guide rollers in sequence, so that the strip materials are stored in the cache slot in a continuous S shape. The deficiencies of the existing design are: it will increase the length of the cache slot, making the volume of the cache slot relatively large and occupying the installation space.

[0032] By changing the layout of multiple guide rollers, this storage rack can ensure that when storing strip materials of the same length, the length of the cache slot is shortened, saving the equipment installation space.

[0033] The position of the first guide roller on the U-shaped groove is in the upper part, providing initial guidance for the strip materials. The second guide roller and the third guide roller are arranged in the lower part of the U-shaped groove, and the three form a preliminary material guiding path framework. More subsequent guide rollers will further construct a complete material storage path on this basis.

[0034] Furthermore, the first guide roller 15, the fourth guide roller 18, the sixth guide roller 20, the eighth guide roller 22, and the tenth guide roller 24 are located in the upper part of the U-shaped groove; The second guide roller 16, the third guide roller 17, the fifth guide roller 19, and the seventh guide roller 21 are located in the lower part of the U-shaped groove.

[0035] The basic principle of caching strip materials on this storage rack is: the strip materials wind around up and down on the storage rack, but the winding route is not a continuous S shape, but a spiral-like route, so as to save the space of this storage rack on the premise that the path is not reduced.

[0036] Furthermore, the eighth guide roller 22 is directly above the sixth guide roller 20, and the tenth guide roller 24 is directly above the fourth guide roller 18.

[0037] The eighth guide roller 22 and the sixth guide roller 20 are arranged vertically, and the diameter of the eighth guide roller 22 is larger than that of the sixth guide roller 20; the diameter of the tenth guide roller 24 is larger than that of the fourth guide roller 18. Specifically, the diameter of the tenth guide roller 24 is 1-2 cm larger than that of the fourth guide roller 18. The purpose of this dimension design is to ensure that the gap between adjacent layers of strip materials is relatively small and the strip materials do not rub against each other.

[0038] Based on the same design principle, the ninth guide roller 23 is located directly above the fifth guide roller 19, and the fifth guide roller 19 is located between the eighth guide roller 22 and the tenth guide roller 24. And the diameter of the ninth guide roller 23 is smaller than that of the fifth guide roller 19.

[0039] Furthermore, it further includes an eleventh guide roller 25 and a twelfth guide roller 26. The eleventh guide roller 25 is located obliquely below the tenth guide roller 24, and the twelfth guide roller 26 is located directly above or obliquely above the eleventh guide roller 25.

[0040] The positions of the eleventh guide roller 25 and the twelfth guide roller 26 are mainly used to adjust the discharging direction of the strip materials. The distance between the eleventh guide roller 25 and the twelfth guide roller 26 can be determined according to the position of the equipment at the rear end of the storage rack. Furthermore, as Figure 1 shown, the strip materials to be cached bypass the first guide roller 15, the second guide roller 16, the third guide roller 17, the fourth guide roller 18, the fifth guide roller 19, the sixth guide roller 20, the seventh guide roller 21, the eighth guide roller 22, the ninth guide roller 23, the tenth guide roller 24, the eleventh guide roller 25 and the twelfth guide roller 26 in sequence. It can be seen from the attached drawings that the gap between each layer of strip materials can be made very narrow. In the case of storing materials of the same length, it is beneficial to save the space and materials of the storage rack.

[0041] III. The dressing machine is the core equipment in the automatic production line of wound plasters that processes the coil materials into sheet wound plasters and completes the preliminary packaging. Its name accurately reflects the main function of the equipment to apply and combine each layer of materials. The equipment mainly consists of a frame, a multi-layer material unwinding mechanism, a composite pressing mechanism, a cutting and forming mechanism, a packaging paper supply and sealing mechanism, and a control system, etc. The frame, as the basic support structure of the dressing machine, provides a stable installation platform for other components and ensures the rigidity and stability of the overall equipment. The multi-layer material unwinding mechanism is arranged above the frame and is used to place each layer of coil materials required for the wound plasters, including the absorbent pad coil, the absorbent cotton coil, the surface protective film coil, etc. The tension control system is used to keep the tension of each layer of materials stable during the unwinding process, avoid slack or excessive stretching, and ensure the accuracy and consistency of material transportation. The composite pressing mechanism is a key part of the applicator for material application, which consists of multiple groups of pressing rollers and heating devices. After each layer of material is drawn out from the unwinding mechanism, it enters the composite pressing mechanism in sequence according to the set order and is initially bonded together under the extrusion of the pressing rollers. Meanwhile, the heating device moderately heats the material to improve the bonding effect between the materials, making each layer of material closely combined to form a complete wound dressing sheet structure. The cutting and forming mechanism is located behind the composite pressing mechanism. It uses high-precision blades and molds to cut the continuous sheet material into individual wound dressings according to the set size specifications of the wound dressings. The sharpness of the blades and the precision of the molds directly affect the cutting quality of the wound dressings. Through precise machining and debugging, it is ensured that the edges of the cut wound dressings are neat and the sizes are accurate. The applicator in this embodiment uses existing equipment, and the present invention does not make technical improvements to this equipment.

[0042] IV. Bending type material transfer device: It includes a hanger 28. A sliding track 29 is provided at the bottom of the hanger 28. A sliding block 30 is slidably installed on the sliding track 29. The sliding block 30 is connected to a corner frame 31. A transfer roller 32 for material transfer is provided on the corner frame 31. The transfer roller 32 for material transfer is used in cooperation with a feeding roller 33 and a discharging roller 34, and the installation angle of the transfer roller 32 for material transfer is different from that of the feeding roller 33.

[0043] The material in this embodiment is a wound dressing. Before being cut, an individual wound dressing is in a strip structure, and several wound dressings are driven by a transmission device. Due to the limitation of the installation space, it is necessary to bend the strip material, otherwise the length of the workshop is not sufficient to install the production equipment. Existing transmission equipment is all linear transmission and does not have a turning function. The present invention makes improvements to solve this technical problem. The main core component is the transfer roller 32 for material transfer, and the general installation angle of the transfer roller 32 for material transfer is 45°. Specifically, the axes of the feeding roller 33 and the discharging roller 34 are perpendicular to each other, and the axis of the transfer roller 32 for material transfer forms a forty-five-degree angle with the axis of the feeding roller 33. The strip material enters the transfer roller 32 for material transfer from the feeding roller 33, then enters the discharging roller 34 from the transfer roller 32 for material transfer, and then enters the guide roller 14 from the discharging roller 34. Due to the transitional effect of the transfer roller 32 for material transfer, the strip material makes a 90° turn.

[0044] Furthermore, the present invention adds an alignment function, and the specific implementation structure is as follows: The corner bracket 31 is connected to the first moving block 35, and the first moving block 35 is driven to move by the corner bracket driving mechanism. The corner bracket driving mechanism includes a first lead screw 36, which is in threaded cooperation with the first moving block 35. The first lead screw 36 is rotatably installed on the hanging bracket 28 and is driven to rotate by a motor or manually. When the first lead screw 36 rotates, it will drive the first moving block 35 to move. The first moving block 35 will drive the corner bracket 31 to move, and the corner bracket 31 will drive the roller 32 for material transfer to translate.

[0045] When the roller 32 for material transfer moves, it will change the position of the strip-shaped material and the discharge roller 34, so as to achieve the purpose of rectification.

[0046] Furthermore, a limit block 40 is provided between the roller 32 for material transfer and the feeding roller 33. The limit block 40 is driven to move by a limit block driving device and is used to prevent the material from detaching from the feeding roller 33. The limit block 40 mainly plays a role in limiting the strip-shaped material and preventing the strip-shaped material from detaching from the side of the feeding roller 33.

[0047] Furthermore, the limit block driving device includes a second moving block 37, which is in threaded connection with a second lead screw 38, and the second moving block 37 is connected to the limit block 40. The second lead screw 38 is coaxially connected to a knob, and the position of the limit block 40 is adjusted by manually rotating the knob. Specifically, the limit block 40 is of a U-shaped structure, and the U-shaped opening of the limit block 40 is used to frame the conveyed material.

[0048] Furthermore, the second moving block 37 is in sliding cooperation with a sliding rod 39. To prevent the second moving block 37 from rotating, the main function of the sliding rod 39 is to limit the rotation of the second moving block 37 and make the second moving block 37 translate along the sliding rod 39.

[0049] V. Flake material filling device: This device includes a rotating rod 41, on which a chute 42 is provided. The chute 42 is in sliding cooperation with a sliding rod 43. The sliding rod 43 is connected to a movable rod 44 through a connecting piece, and the sliding rod 43 is hinged to the connecting piece; a filling pressing plate 45 is provided at the end of the movable rod 44, and the filling pressing plate 45 is used to cooperate with a filling scraping device 49. In this embodiment, the flake material is a wound dressing, and this device is used to fill a certain number of wound dressings into the inlet belt of the packaging machine in batches.

[0050] Specifically, the rotating rod 41 is driven to rotate by a motor. The rotating rod 41 will synchronously drive the movable rod 44 to rotate. A filling pressing plate 45 is provided at the end of the movable rod 44, and the filling pressing plate 45 is used to cooperate with the filling scraping device 49.

[0051] The described filler scraper device 49 includes two relatively arranged scraper belt conveyors which are vertically installed. The filler pressing plate 45 is used to quickly press the sheet materials on the scraper belt conveyor downward. The scraper belt conveyor is used to quantitatively output the sheet materials. An inlet belt of the packaging machine is provided at the bottom of the scraper belt conveyor. The filler pressing plate 45 of this device can quickly fill the materials at the bottom of the scraper belt conveyor into the inlet belt of the packaging machine. Without this device, the wound plasters are prone to scattering and the filling speed is slow.

[0052] Further, in order to improve the stability of the movable rod 44, the movable rod 44 is slidably engaged with the slide rail 47 through the slider 46. Specifically, the movable rod 44 is slidably engaged with the slider 46, and the slider 46 is slidably engaged with the slide rail 47.

[0053] The slide rail 47 is installed on the substrate 48, and the rotating rod 41 is installed on the substrate 48 through a rotating shaft. The number of the slide rails 47 is two, and the two slide rails 47 are respectively located on both sides of the rotating rod 41. The above structure can ensure that the movable rod 44 is always in a horizontal state and will not tilt. The movement track of the movable rod 44 is an elliptical reciprocating movement. Correspondingly, it will drive the filler pressing plate 45 to perform an elliptical reciprocating movement.

[0054] Further, the filler pressing plate 45 is a Z-shaped plate. The structure of the Z-shaped plate can facilitate the filler pressing plate 45 to extend into the inner part of the inlet belt without touching it.

[0055] VI. Roller positioning pin mechanism: This device includes a clamping block 50. An active pin chute is provided in the clamping block 50. The active pin chute includes an active pin front chute 201 and an active pin rear chute, and the active pin front chute 201 and the active pin rear chute are communicated with each other; An active pin 51 is provided in the active pin chute. A partition plate 52 is provided on the active pin 51. The partition plate 52 is used to slide in the active pin front chute 201. A clamping groove is provided at the rear end of the active pin 51, and the clamping groove is matched with a damping pin 53. The damping pin 53 is installed in a damping pin chute 55.

[0056] The clamping block 50 can be installed on the rotating shaft of the suction roller. A positioning groove is provided on the side wall of the suction roller, and the positioning groove is matched with the active pin 51. When the front end of the active pin 51 is located in the positioning groove, the suction roller is in a state of sticking glue. When the suction roller starts to rotate, the active pin 51 will be squeezed and move backward.

[0057] Further, the clamping groove is an annular clamping groove 54, and the annular clamping groove 54 is provided with an arc-shaped concave surface. When the front end of the active pin 51 is located in the positioning groove, the end of the damping pin 53 is located in the annular clamping groove 54. When the active pin 51 moves backward, the annular clamping groove 54 will give a thrust to the damping pin 53 to make the damping pin 53 move outward.

[0058] Furthermore, the inner wall of the front slot 201 of the movable pin is provided with internal threads, and the front slot 201 of the movable pin is threadedly connected to the external thread adjusting cap 56. A spring 57 is provided between the external thread adjusting cap 56 and the partition plate 52.

[0059] The external thread adjusting cap 56 is used to adjust the prestress of the spring 57. When the front end of the movable pin 51 is located in the positioning slot, the spring 57 is in a compressed state. The reason why the spring 57 does not push the movable pin 51 to move at this time is that the resistance between the movable pin 51 and the damping pin 53 is greater than the elastic force of the spring 57. When the suction roller starts to rotate, the movable pin 51 will be squeezed and move backward. At this time, the resistance between the movable pin 51 and the damping pin 53 is not enough to block the movable pin 51, and the damping pin 53 will move outward, and the prestress stored in the spring 57 will be released, so as to continue to push the movable pin 51 backward, so that the movable pin 51 can be completely separated from the suction roller, avoiding friction between the suction roller and the movable pin 51.

[0060] When gluing is required, the suction roller rotates to the gluing position, and the staff manually pushes the movable pin 51 forward. The front end of the movable pin 51 is pushed into the positioning slot. At this time, the damping pin 53 moves inward, and the end of the damping pin 53 is located in the annular card slot 54 to temporarily lock the movable pin 51.

[0061] Furthermore, the front end of the movable pin 51 is hemispherical, and the movable pin 51 is slidably matched with the inner wall of the external thread adjusting cap 56. The end of the movable pin 51 is hemispherical, which can ensure that the movable pin 51 restricts the rotation of the suction roller to a certain extent. When the suction roller is driven by the motor to rotate, the movable pin 51 can be smoothly pushed backward.

[0062] Furthermore, the inner diameter of the front slot 201 of the movable pin is larger than the inner diameter of the rear slot of the movable pin. The structures of the front slot 201 and the rear slot of the movable pin are mainly to adapt to the installation of the partition plate 52. Furthermore, the damping pin chute 55 is communicated with the rear slot of the movable pin, and the axis of the rear slot of the movable pin is perpendicular to the axis of the damping pin chute 55. The number of the damping pin chutes 55 is multiple. In this embodiment, four damping pin chutes 55 can be provided.

[0063] Furthermore, a ball is provided at the end of the damping pin 53, and the ball is connected by an elastic member. The purpose of the damping pin 53 is to provide a certain resistance to the movable pin 51 to overcome the thrust of the spring 57. And when the movable pin 51 receives a relatively large thrust, the damping pin 53 can also perform self-adaptive movement. Therefore, based on the above principle, the structure of the damping pin 53 can include various types. Among them, a ball that can move elastically is provided at the end of the damping pin 53, which is a structure to realize the above principle. Similarly, as another alternative solution, the damping pin 53 can be connected to the damping pin chute 55 through an elastic member, and the above function can also be realized.

[0064] VII. Double-belt material distribution conveyor line: This device includes a first conveyor belt 58 and a second conveyor belt 59. A number of first partitions 60 are installed on the first conveyor belt 58, and a number of second partitions 61 are installed on the second conveyor belt 59. A partition gap is formed between adjacent first partitions 60 and second partitions 61. The distance of the partition gap is adjusted by changing the conveying speeds of the first conveyor belt 58 and the second conveyor belt 59.

[0065] The traditional scraper conveyor belt only has one conveyor belt, and a number of partitions are fixed on the conveyor belt. The gap between adjacent two partitions is fixed. If the distance between two partitions needs to be adjusted, the whole conveyor belt needs to be replaced. The present invention mainly improves on this technical problem, and its solution is mainly achieved through the first conveyor belt 58, the second conveyor belt 59, the first partition 60 and the second partition 61.

[0066] Under normal circumstances, the driving speeds of the first conveyor belt 58 and the second conveyor belt 59 are the same, so as to ensure that the distance between the first partition 60 and the second partition 61 remains unchanged. When the distance between the first partition 60 and the second partition 61 needs to be adjusted, the driving speeds of the first conveyor belt 58 and the second conveyor belt 59 are temporarily made asynchronous, so that the distance between the first partition 60 and the second partition 61 will change. When the distance between the first partition 60 and the second partition 61 meets the requirements, the first conveyor belt 58 and the second conveyor belt 59 are then adjusted to be consistent. Thus, the purpose of flexibly adjusting the distance between the first partition 60 and the second partition 61 is achieved.

[0067] From the attached Figure 2 It can be seen that the distance between the first partition 60 and the second partition 61 includes a larger distance and a smaller distance. When the smallest distance approaches zero infinitely, it is the maximum value of the material storage space. When the larger distance and the smaller distance approach each other infinitely, it is the minimum value of the material storage space.

[0068] The space between the first partition 60 and the second partition 61 is used to store the materials to be conveyed. The interval where the materials are located is the material interval, and the length of the material interval is adjusted by changing the conveying speeds of the first conveyor belt 58 and the second conveyor belt 59.

[0069] Further, in order to achieve synchronous and asynchronous movements of the first conveyor belt 58 and the second conveyor belt 59, two motors need to be controlled separately. The first conveyor belt 58 is driven by the first conveyor belt driving motor, and the second conveyor belt 59 is driven by the second conveyor belt driving motor; the conveying directions of the first conveyor belt 58 and the second conveyor belt 59 are the same, and the installation positions of the first conveyor belt 58 and the second conveyor belt 59 do not coincide. In this embodiment, the first conveyor belt 58 and the second conveyor belt 59 are arranged side by side.

[0070] The first partition plate 60 and the second partition plate 61 are identical in shape and size; A part of the first partition plate 60 is installed on the first conveyor belt 58, and the other part of the first partition plate 60 extends to the second conveyor belt 59 and is not connected to the second conveyor belt 59; A part of the second partition plate 61 is installed on the second conveyor belt 59, and the other part of the second partition plate 61 extends to the first conveyor belt 58 and is not connected to the first conveyor belt 58.

[0071] Specifically, the first partition plate 60 is fixed to the first conveyor belt 58 by screws, and the second partition plate 61 is installed on the second conveyor belt 59 by screws.

[0072] Both the first partition plate 60 and the second partition plate 61 are of concave plate structures. This is mainly to facilitate operations such as filling or taking materials by other equipment.

[0073] Both the first conveyor belt 58 and the second conveyor belt 59 are installed on the conveyor belt rack, and baffles are provided on the side of the conveyor belt rack. The baffles are located on both sides of the first partition plate 60 and the second partition plate 61. The baffles mainly prevent materials from falling from the sides of the first conveyor belt 58 and the second conveyor belt 59. This structure is similar to the existing scraper conveyor belt structure.

[0074] An automatic production line for manufacturing wound plasters includes the following steps: S1: The automatic material receiving and reel changing device is started. Under normal working conditions, the main unwinding reel separately provides two layers of base material including substrate and peeling film, and the auxiliary unwinding reel is in standby state. When the main unwinding reel is working, the staff will stick the first adhesive tape on the edge of the second clamping plate in advance, and the second clamping plate will clamp the base material of the auxiliary unwinding reel, with the adhesive side of the adhesive tape facing the base material; at the same time, the second adhesive tape is adsorbed on the first suction roller, with the adhesive side facing outwards; when the material on the main unwinding reel is almost used up, the first hob device and the second hob device are used, and the first hob device cuts off the main unwinding reel. The base material on the reel, the second roller cuts the first tape and presses it on the fracture of the base material, so that the base material on the auxiliary unwinding reel is connected to the fracture; then, the base material continues to be pulled, the first suction roller rotates, and the second tape is attached to the other side of the fracture, completing the switching of the main and auxiliary unwinding reels. During this process, the suction roller driving cylinder drives the mobile mounting seat to squeeze and clamp the material through the first suction roller and the second suction roller, and the functional discharge roller cooperates with the pressing plate to clamp the base material, ensuring that the front end process of the functional discharge roller does not stop when switching; S2: The strip-shaped base material output from the automatic material receiving and reel changing device enters the material storage rack, and passes by the first guide roller, the second guide roller, the third guide roller, the fourth guide roller, the fifth guide roller, the sixth guide roller, the seventh guide roller, the eighth guide roller, the ninth guide roller, the tenth guide roller, the eleventh guide roller and the twelfth guide roller in sequence. The material passes by the material storage rack in a spiral route, and the material is cached. At the same time, this layout saves space when storing materials of the same length. S3: The cached base material enters the applicator, which sequentially attaches the various layers of material required for the band-aid to the base material to form a complete band-aid strip material; S4: The band-shaped wound patch material that has been applied enters the turning transfer device, and the feed roller conveys the material to the transfer roller. The transfer roller is 45 degrees to the axis of the feed roller and perpendicular to the axis of the discharge roller. Under the transition effect of the transfer roller, the material makes a 90-degree turn and is transferred to the discharge roller and then enters the guide roller. If the material deviates, the corner frame driving mechanism drives the corner frame to drive the transfer roller to translate for deviation correction, and the limit block limits the material under the action of the limit block driving device to prevent it from leaving the feed roller. S5: The band-shaped bandage material passing through the turning material transfer device enters the slitting device, and the slitting device slits the strip material into sheet-shaped bandage material; S6: The cut sheet-like wound-aid material enters the double-belt material separation conveyor line. The first conveyor belt and the second conveyor belt are controlled by their respective driving motors to change the distance between the first partition and the second partition by adjusting the transmission speed, thereby adjusting the storage interval length of the sheet-like material and completing the conveying and caching of the sheet-like material. S7: The double-belt material distribution conveyor line conveys the sheet materials to the sheet material filling device. The rotating rod is driven by a motor to rotate, driving the movable rod and the filling pressure plate at the end to make an elliptical reciprocating motion. The filling pressure plate cooperates with the vertically installed filling scraper device to quickly press down the sheet materials on the scraper belt conveyor, filling them into the inlet belt of the packaging machine and completing the automatic production process of the wound dressing.

[0075] The above embodiments are only the preferred technical solutions of the present invention and should not be regarded as limitations on the present invention. The protection scope of the present invention should be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, the equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. An automatic production line for manufacturing wound plasters, characterized in that: It includes an automatic material receiving and roll changing device, a storage rack, a dressing applicator, a turning material transfer device, a slitting device and a sheet material filling device; The automatic material receiving and roll changing device is used to provide the base material and realize the switching between the main unwind reel and the auxiliary unwind reel; The storage rack is used to buffer the base material provided by the automatic material receiving and roll changing device; The dressing applicator is used to stick each layer of materials of the wound dressing on the base material; The turning material transfer device is used to change the direction of material transmission; The slitting device is used to slit the strip material into sheet materials; The sheet material filling device is used to fill the sheet materials into the inlet belt of the packing machine.

2. The automatic production line for manufacturing a band-aid according to claim 1, characterized in that: The automatic material receiving and roll changing device includes a main unwind reel (2) and an auxiliary unwind reel (3). The materials of the main unwind reel (2) and the auxiliary unwind reel (3) pass through the working frame (4). The working frame (4) is provided with a first clamping plate (51) and a second clamping plate (52). The first clamping plate (51) is driven to move by a first push rod (61), and the second clamping plate (52) is driven to move by a second push rod (62); A first suction roller (71) is arranged above the first clamping plate (51), and a second suction roller (72) is arranged above the second clamping plate (52); The working frame (4) is provided with a first hob device (12), and the first hob device (12) is used to cut the material on one side of the first clamping plate (51); The working frame (4) is provided with a second hob device (13), and the second hob device (13) is used to cut the material on one side of the second clamping plate (52).

3. The automatic production line for manufacturing wound plasters according to claim 2, wherein: Both ends of the rotating shaft of the second suction roller (72) are installed on a moving mounting seat (8), and the moving mounting seat (8) is driven to move by a suction roller driving cylinder (9); A functional discharge roller (10) is arranged above the first suction roller (71). The functional discharge roller (10) cooperates with a pressing plate (11), and the pressing plate (11) is driven to move by a cylinder; The first suction roller (71) and the second suction roller (72) are provided with negative pressure holes for adsorbing the adhesive tape.

4. The automatic production line for manufacturing wound plasters according to claim 1, characterized in that: The storage rack includes a U-shaped groove. The U-shaped groove is provided with a first guide roller (15). The first guide roller (15) is located at the upper part of the U-shaped groove. A second guide roller (16) is arranged below the first guide roller (15). A third guide roller (17) is arranged beside the second guide roller (16). The second guide roller (16) and the third guide roller (17) are located at the lower part of the U-shaped groove; A fourth guide roller (18) is arranged above the third guide roller (17). A fifth guide roller (19) is arranged obliquely below the fourth guide roller (18). A sixth guide roller (20) is arranged obliquely above the fifth guide roller (19). A seventh guide roller (21) is arranged obliquely below the sixth guide roller (20). An eighth guide roller (22) is arranged obliquely above the seventh guide roller (21). A ninth guide roller (23) is arranged obliquely below the eighth guide roller (22). A tenth guide roller (24) is arranged obliquely above the ninth guide roller (23); The first guide roller (15), the fourth guide roller (18), the sixth guide roller (20), the eighth guide roller (22) and the tenth guide roller (24) are located at the upper part of the U-shaped groove; the second guide roller (16), the third guide roller (17), the fifth guide roller (19) and the seventh guide roller (21) are located at the lower part of the U-shaped groove; The eighth guide roller (22) is located directly above the sixth guide roller (20), and the tenth guide roller (24) is located directly above the fourth guide roller (18); The ninth guide roller (23) is located directly above the fifth guide roller (19), and the fifth guide roller (19) is located between the eighth guide roller (22) and the tenth guide roller (24).

5. The automatic production line for manufacturing wound plasters according to claim 1, wherein: The turning type material transfer device includes a hanging bracket (28). A sliding track (29) is provided at the bottom of the hanging bracket (28). A sliding block (30) is slidably mounted on the sliding track (29). The sliding block (30) is connected to a corner frame (31). A material transfer roller (32) is provided on the corner frame (31). The material transfer roller (32) is used in cooperation with a feeding roller (33) and a discharging roller (34). The installation angle of the material transfer roller (32) is different from that of the feeding roller (33); The corner frame (31) is connected to a first moving block (35), and the first moving block (35) is driven to move by a corner frame driving mechanism; The corner frame driving mechanism includes a first lead screw (36). The first lead screw (36) is in threaded cooperation with the first moving block (35). The first lead screw (36) is rotatably mounted on the hanging bracket (28). The first lead screw (36) is driven to rotate by a motor or manually rotated.

6. The automatic production line for manufacturing wound plasters according to claim 5, characterized in that: A limiting block (40) is provided between the material transfer roller (32) and the feeding roller (33). The limiting block (40) is driven to move by a limiting block driving device. The limiting block (40) is used to prevent the material from separating from the feeding roller (33); The limiting block driving device includes a second moving block (37). The second moving block (37) is in threaded connection with a second lead screw (38). The second moving block (37) is connected to the limiting block (40).

7. The automatic production line for manufacturing a wound dressing according to claim 1, wherein: The sheet material filling device includes a rotating rod (41). A chute (42) is provided on the rotating rod (41). The chute (42) is in sliding cooperation with a sliding rod (43). The sliding rod (43) is connected to a movable rod (44) through a connecting member, and the sliding rod (43) is hinged to the connecting member; A filling pressure plate (45) is provided at the end of the movable rod (44). The filling pressure plate (45) is used to cooperate with a filling scraper device (49); The movable rod (44) is in sliding cooperation with a slider (46), and the slider (46) is in sliding cooperation with a slide rail (47); The slide rail (47) is mounted on a substrate (48). The rotating rod (41) is mounted on the substrate (48) through a rotating shaft; The filling scraper device (49) includes two oppositely arranged scraper belt conveyors. The scraper belt conveyors are vertically installed. The filling pressure plate (45) is used to quickly press down the sheet material on the scraper belt conveyor.

8. An automatic production line for manufacturing wound plasters according to claim 1, characterized in that: It also includes a roller positioning pin mechanism. The roller positioning pin mechanism is used for temporarily limiting the first suction roller (71) or the second suction roller (72); The roller positioning pin mechanism includes a clamping block (50). An active pin chute is provided in the clamping block (50). The active pin chute includes an active pin front slot (201) and an active pin rear slot. The active pin front slot (201) and the active pin rear slot are connected; The movable pin chute is provided with a movable pin (51). A partition plate (52) is provided on the movable pin (51). The partition plate (52) is used to slide in the front slot (201) of the movable pin. A clamping slot is provided at the rear end of the movable pin (51). The clamping slot is matched with a damping pin (53). The damping pin (53) is installed in the damping pin chute (55). Internal threads are provided on the inner wall of the front slot (201) of the movable pin. The front slot (201) of the movable pin is in threaded connection with an externally threaded adjusting cap (56). A spring (57) is provided between the externally threaded adjusting cap (56) and the partition plate (52). The front end of the movable pin (51) is hemispherical. The movable pin (51) is in sliding fit with the inner wall of the externally threaded adjusting cap (56).

9. An automatic production line for manufacturing wound plasters according to claim 1, characterized in that: The inlet belt of the packing machine is a double-belt material distribution conveyor line. The double-belt material distribution conveyor line includes a first conveyor belt (58) and a second conveyor belt (59). A number of first partition plates (60) are installed on the first conveyor belt (58). A number of second partition plates (61) are installed on the second conveyor belt (59). Partition gaps are formed between adjacent first partition plates (60) and second partition plates (61). The distance of the partition gaps is adjusted by changing the conveying speeds of the first conveyor belt (58) and the second conveyor belt (59).

10. The production process of an automatic production line for manufacturing wound plasters according to claims 1-9, characterized in that It includes the following steps: S1: The automatic material receiving and roll changing device is started. Under normal working conditions, the main unwind reel alone provides two-layer base materials including a base material and a release film. The auxiliary unwind reel is in a standby state. When the main unwind reel is working, the staff pre-sticks the first adhesive tape on the edge of the second clamping plate. The second clamping plate clamps the base material of the auxiliary unwind reel, and the adhesive surface of the adhesive tape faces the base material. At the same time, the second adhesive tape is adsorbed on the first suction roller, with the adhesive surface facing outward. When the material on the main unwind reel is almost used up, using the first cutter device and the second cutter device, the first cutter device cuts the base material on the main unwind reel, and the second cutter device cuts the first adhesive tape and presses it on the cut end of the base material to connect the base material of the auxiliary unwind reel to the cut end. Subsequently, the base material continues to be pulled. The first suction roller rotates to attach the second adhesive tape to the other side of the cut end, completing the switching between the main and auxiliary unwind reels. During this process, the suction roller driving cylinder drives the movable mounting seat. The material is squeezed and clamped by the first suction roller and the second suction roller. The functional discharge roller and the pressing plate cooperate to clamp the base material to ensure that the process at the front end of the functional discharge roller does not stop during the switching. S2: The strip-shaped base material output from the automatic material receiving and roll changing device enters the storage rack and bypasses the first guide roller, the second guide roller, the third guide roller, the fourth guide roller, the fifth guide roller, the sixth guide roller, the seventh guide roller, the eighth guide roller, the ninth guide roller, the tenth guide roller, the eleventh guide roller, and the twelfth guide roller in sequence. The material winds around up and down in the storage rack in a spiral-like route to achieve buffering. At the same time, this layout saves space when storing materials of the same length. S3: The buffered base material enters the applicator. The applicator sequentially pastes the various layers of materials required for the wound dressing on the base material to form a complete wound dressing strip-shaped material. S4: The completed bandage wound dressing material enters the turning type material transfer device. The feeding roller conveys the material to the transfer roller. The axis of the transfer roller is at a 45-degree angle to the axis of the feeding roller and perpendicular to the axis of the discharging roller. Under the transitional effect of the transfer roller, the material makes a 90-degree turn and is transmitted to the discharging roller and then enters the guide roller. If the material is offset, the corner frame driving mechanism drives the corner frame to drive the transfer roller to translate for deviation correction. The limit block limits the material under the action of the limit block driving device to prevent it from separating from the feeding roller. S5: The bandage wound dressing material passing through the turning type material transfer device enters the slitting device, and the slitting device cuts the strip-shaped material into sheet wound dressing materials. S6: The cut sheet wound dressing materials enter the double-belt material distribution and conveying line. The first conveyor belt and the second conveyor belt are controlled by their respective driving motors. By adjusting the transmission speed, the distance between the first partition plate and the second partition plate is changed to adjust the storage interval length of the sheet materials, and the conveying and caching of the sheet materials are completed. S7: The double-belt material distribution and conveying line conveys the sheet materials to the sheet material filling device. The rotating rod is driven by a motor to rotate, driving the movable rod and the filling pressing plate at the end to make an elliptical reciprocating motion. The filling pressing plate cooperates with the vertically installed filling scraping device to quickly press the sheet materials on the scraping belt conveyor downward and fill them into the inlet belt of the packaging machine, completing the automatic production process of the wound dressing.

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