Automatic bandage preparation device and method

Abstract

The invention discloses an automatic bandage preparation device and method, and belongs to the technical field of bandage production. Comprising a cloth unwinding structure, a paper unwinding structure, a gauze core-pulling winding structure, a cloth cutting structure, a paper cutting and glue spraying structure, a bandage paper wrapping structure, a material receiving groove, a transferring structure, a bandage slitting structure and a bandage strip lifting structure. The bandage slitting structure comprises a feeding conveying mechanism, a sawing structure and a discharging conveying mechanism. The transferring structure comprises a discharging groove and a plurality of guiding strips. The discharging groove and the receiving groove are selectively mounted and are detachably arranged; the bandage strip lifting structure includes a guide plate and a plurality of lifting belts. The device is used for installing a material receiving groove when bandage strips are produced; when the device is used for producing bandages, the discharge chute is mounted; the discharge chute is obliquely arranged downwards from front to back, and the front part of the discharge chute is positioned right below the bandage paper wrapping structure; the multiple guide strips are arranged side by side in the left-right direction and staggered with the lifting belt. The front end of the guide strip is connected with the rear end of the discharging groove, and the rear end of the guide strip is connected with the bottom of the support.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of medical dressing production, and particularly relates to an automatic preparation device and method of bandages. BACKGROUND

[0002] Bandages are common medical and health supplies, which are generally made of gauze or cotton cloth and mainly used for bandaging wounds to prevent wound infection. After medical gauze bandage processing is completed, it is generally a thick roll. In order to facilitate subsequent actual use, the gauze of the thick roll needs to be cut to a certain length and rolled to obtain a small roll with a certain thickness. Then a layer of paper is wrapped outside. Finally, the bandage is obtained by slitting.

[0003] A patent with application number CN201910586401.2 discloses a wrapping paper bandage rolling machine, which comprises a rack, a gauze feeding frame, a paper roll feeding roller, a gauze core pulling and rolling device, a paper cutting and glue spraying device and a bandage wrapping device. The left end of the rack is provided with the gauze feeding frame, and the left part of the rack is provided with the paper roll feeding roller. The gauze core pulling and rolling device is arranged in the middle part of the rack. The gauze core pulling and rolling device comprises a driving cloth roller, a driven cloth roller, an extension shaft, a cloth pressing roller, a rolling plate, a transmission gear arranged between the driving cloth roller and the driven cloth roller, a gear meshing with the transmission gear arranged at the end of the driving cloth roller and the driven cloth roller, the cloth pressing roller arranged on the upper side between the driving cloth roller and the driven cloth roller, the extension shaft arranged between the driving cloth roller, the driven cloth roller and the cloth pressing roller, the gauze drawn out from the gauze feeding frame passing through the lower side of the extension shaft, the cloth pressing roller and the rack being hingedly connected with a connecting rod, the rack being hingedly connected with a cloth pressing extension cylinder for driving the rotation of the connecting rod, the extension end of the cloth pressing extension cylinder being hingedly connected with the middle part of the connecting rod, the rolling plate being arranged on the upper left side of the extension shaft and having an L-shaped cross section, the rack being fixedly provided with a rolling extension cylinder for driving the movement of the rolling plate, the rolling extension cylinder being obliquely arranged, the rolling plate being installed on the extension end of the rolling extension cylinder. The number of the extension shafts is two, and the extension shafts are symmetrically arranged on the front and rear parts of the rack. The outer ends of the extension shafts are fixedly connected with shaft seats, the shaft seats and the rack are provided with core pulling extension cylinders, the shaft seats and the rack are further provided with first guide rods, each shaft seat is fixedly connected with two first guide rods, the first guide rods are symmetrically arranged on the two sides of the core pulling extension cylinder, and the first guide rods are slidingly connected with the rack. The extension shafts are obliquely provided with cloth guiding plates on the lower right sides, the cloth guiding plates are provided with cloth cutting grooves in the middle parts, cloth cutting knives are arranged in the cloth cutting grooves, and the rack is slidingly connected with a knife holder for supporting the cloth cutting knives. The paper cutting and glue spraying device is arranged on the upper right end of the rack. The paper cutting and glue spraying device comprises a paper feeding roller group, a glue spraying frame and an obliquely arranged paper guiding plate. The paper feeding roller group captures the paper roll of the paper roll feeding roller. The paper feeding roller group comprises two paper feeding rollers, one of which is connected with a paper feeding motor. The glue spraying frame is slidingly connected with the rack. The glue spraying frame is provided with a glue spraying head and a paper cutting knife. The paper guiding plate is provided with a paper cutting groove. The paper cutting knife is arranged in the paper cutting groove. The bandage wrapping device is arranged below the paper cutting and glue spraying device. The bandage wrapping device comprises a first wrapping roller and a second wrapping roller for supporting a bandage roll. One end of each of the first wrapping roller and the second wrapping roller is connected with a wrapping motor. The two ends of each of the first wrapping roller and the second wrapping roller are connected with spring extension supporting rods. A paper pressing roller is arranged on the upper side between the first wrapping roller and the second wrapping roller. Paper pressing extension cylinders are arranged on the upper sides of the two ends of the paper pressing roller. The gauze feeding frame has a rectangular frame structure. One end of the gauze feeding frame is hingedly connected with the rack, and the other end is provided with a gauze roller for supporting a gauze roll. A supporting extension cylinder is arranged between the end of the gauze feeding frame away from the hinged part with the rack and the rack. A feeding cloth roller is arranged on the left end of the rack. An intermediate cloth roller is further arranged between the gauze core pulling and rolling device and the gauze feeding frame. The intermediate cloth roller comprises a driving roller and a driven roller. A cloth rolling motor is fixedly arranged on the rack. The cloth rolling motor is connected with the driving roller and the driving cloth roller through transmission belts, respectively.

[0004] A full-automatic bandage machine is disclosed in patent application No. CN201620399589.1, which comprises a rack, a raw cloth roll arranged on an extension frame at the front of the rack, and a cloth winding device, a cloth cutting device, a power device, and a program control device. The winding device comprises a front end of the raw cloth roll on the yarn cloth being wound on a spindle through a guide roller or / and a cloth spreading roller; the spindle is arranged on the upper part between a winding roller A and a winding roller B; the spindle is controlled by a transverse telescopic device, and the extension and contraction of the telescopic device is realized by a computer program control operation push shaft cylinder; the winding roller A and the winding roller B are meshed by a gear on one side and rotate towards each other, and under the rotating action of the winding roller A and the winding roller B, the yarn cloth roll continuously rotates and gradually thickens to form a bandage roll A; a pressure roller A is further arranged above the bandage roll A, the shaft of the pressure roller A is arranged in a longitudinal slot, the shaft of the pressure roller A can move up and down along the slot, and an elastic pressing device is arranged on the shaft of the pressure roller A; as the bandage roll A thickens, the shaft of the pressure roller A gradually rises, and a push rod on the upper part of the shaft of the pressure roller A acts on a winding pushing device; finally, when the bandage roll A gradually reaches a set diameter or length, the computer program control winding process is automatically stopped, the spindle is extracted from the bandage roll A under the action of the telescopic device; the bandage roll A is pushed out by the winding pushing device; the bandage roll A rolls along the slope on the rack to the position of the bandage roll B; at this time, the cloth cutting device cuts the yarn cloth behind the bandage roll B under the computer program instruction; the spindle extends under the action of the telescopic device, presses the end of the cut yarn cloth, and wraps the spindle under the winding action; as the bandage roll A rolls out, the pressure roller A falls, and the winding pushing device returns to the original state, thereby starting the process of winding the next bandage roll A; after the bandage roll B enters the position, the lower end of the packaging paper is inserted into the cloth head of the bandage roll B through a paper supply device, and then the paper supply device stops working; at this time, a paper cutting and glue spraying device is started to complete the cutting of the packaging paper and the spraying of the broken end; the rewinding roller A and the rewinding roller B are meshed by a gear on one side and rotate towards each other, and under the rotating action of the rewinding roller A and the rewinding roller B, the bandage roll B starts to rotate, so that the packaging paper is gradually wound with the cloth head and completed to be wrapped and glued on the outside of the bandage roll B; the pressure roller B is arranged above the bandage roll B, the shaft of the pressure roller B is arranged in a longitudinal slot, the shaft of the pressure roller B can move up and down along the slot, and an elastic pressing device is arranged on the shaft of the pressure roller B, so that the pressure roller B can press the bandage roll B tightly; after the winding is completed, the computer automatically starts a cylinder, the rewinding roller B retreats, and the finished product bandage roll B automatically falls into a receiving vehicle.

[0005] A patent with application number CN201721806783.8 discloses an automatic bandage machine, which comprises a rack and a feeding device, a gauze rolling device, a cloth cutting device, a paper feeding device, a paper cutting and glue spraying device and a paper wrapping and discharging device arranged in sequence on the rack. The gauze rolling device comprises a feeding roller, a first overbridge synchronous wheel, a second overbridge synchronous wheel, a driving winding roller, a driven winding roller, a pressing roller and a winding core shaft. The feeding roller is connected with a feeding motor. The first overbridge synchronous wheel and the second overbridge synchronous wheel are respectively connected with the feeding roller through a synchronous belt. The pressing roller is connected with the first overbridge synchronous wheel through a synchronous belt. The driving winding roller is connected with the second overbridge synchronous wheel through a synchronous belt. The driving winding roller drives the driven winding roller to rotate through a transition gear. The both ends of the rotating shaft of the pressing roller are connected with a pressing roller air cylinder. The both ends of the rotating shaft of the pressing roller are also connected with the rotating shaft of the first overbridge synchronous wheel through a rocker arm. The pressing roller is arranged above the driving winding roller and the driven winding roller. The winding core shaft is arranged between the pressing roller, the driving winding roller and the driven winding roller. A gauze folding structure is arranged on the side of the driven winding roller away from the winding core shaft. The automatic bandage machine further comprises an axis pulling mechanism, which comprises a transversely horizontally arranged axis pulling air cylinder. The extension end of the axis pulling air cylinder is connected with a mounting seat. The mounting seat is installed with a shaft lifting air cylinder. The extension end of the shaft lifting air cylinder is connected with one end of the winding core shaft.

[0006] As can be seen from the above patent, the existing bandage machine can be used to produce bandage strips, which are then manually transported to a slitting device for slitting to obtain bandage rolls. The degree of automation is low, and it is time-consuming and laborious. In addition, the foregoing bandage machine can only prepare bandage strips. SUMMARY

[0007] In order to solve the foregoing problems, the embodiments of the present application provide an automatic preparation device and method of bandage, which has a high degree of automation and can produce four kinds of products. The technical solution is as follows: In one aspect, the embodiment of the present application provides an automatic preparation device of a bandage, which comprises a rack 1 and a cloth unwinding structure, a paper unwinding structure, a gauze core pulling and winding structure 5, a cloth cutting structure 6, a paper cutting and glue spraying structure 7, a bandage paper wrapping structure 8 and a material collecting groove 9 on the rack 1, the cloth unwinding structure, the gauze core pulling and winding structure 5, the cloth cutting structure 6 and the bandage paper wrapping structure 8 are sequentially arranged from front to back, the paper unwinding structure, the paper cutting and glue spraying structure 7 and the bandage paper wrapping structure 8 are sequentially arranged from front to back, the paper unwinding structure and the paper cutting and glue spraying structure 7 are both located above the gauze core pulling and winding structure 5, the material collecting groove 9 is located directly below the bandage paper wrapping structure 8, the gauze core pulling and winding structure 5 comprises a cloth pressing roller, a winding plate, two telescopic shafts 52 and two cloth winding rollers 51; the device further comprises a transfer structure 10, a bandage slitting structure 11 and a bandage strip lifting structure 12, the bandage slitting structure 11 comprises an in-feed conveying mechanism, a sawing structure and an out-feed conveying mechanism which are sequentially arranged from left to right and upward, the in-feed conveying mechanism is arranged along the left-right direction; the transfer structure 10 comprises an out-feed groove and a plurality of guide strips; the out-feed groove and the material collecting groove 9 are alternatively installed and both are detachably arranged on the rack 1; the bandage strip lifting structure 12 is located directly behind the bandage paper wrapping structure 8 and in front of the in-feed conveying mechanism, and comprises a support and a guide plate 21 and a plurality of lifting belts 22 on the support; the plurality of lifting belts 22 are arranged side by side along the left-right direction and are synchronously driven, the lifting belts 22 are vertically arranged and are provided with a Chinese character 'fang' shaped groove 23 which is matched with the bandage strip 4 and is open upward; the guide plate 21 is arranged obliquely downward from front to back, the upper end of the guide plate 21 is located below the front of the top of the lifting belts 22, the lower end of the guide plate 21 is located directly above the in-feed conveying mechanism, a plurality of avoidance notches 24 for the Chinese character 'fang' shaped groove 23 are arranged side by side along the left-right direction at the upper end of the guide plate 21, a friction deceleration strip 25 and a lifting baffle 26 are sequentially arranged from top to bottom on the guide plate 21; the lifting baffle 26 is arranged along the left-right direction and can move up and down, and can block the downward rolling of the bandage strip 4; when the bandage strip 4 is produced, the material collecting groove 9 is installed; when the bandage is produced, the transfer structure 10 is installed; the out-feed groove is arranged obliquely downward from front to back, and the front part of the out-feed groove is located directly below the bandage paper wrapping structure 8; the plurality of guide strips are arranged side by side along the left-right direction and are staggered with the lifting belts 22; the guide strips are arranged obliquely downward from front to back, the front end of the guide strips is connected with the rear end of the out-feed groove, the rear end of the guide strips is connected with the bottom of the support, and the guide strips guide the bandage strip 4 to the Chinese character 'fang' shaped groove 23 on the front side of the lifting belts 22.

[0008] In the embodiment of the present application, the in-feed conveying mechanism can reciprocate forward and backward, and comprises a conveying belt and two side plates; the two side plates are arranged side by side along the front-rear direction, are respectively located adjacent to the front and the rear of the bandage strip 4, and are located adjacent to the top of the left and right ends of the conveying belt; the upper end of the front side plate is located adjacent to the lower end of the rear end of the guide plate 21, and the top of the rear side plate is provided with a plurality of inclined baffles arranged side by side along the left-right direction.

[0009] The bandage strip lifting structure 12 in the embodiment of the present application further comprises two driving rods and a servo motor; the two driving rods are arranged side by side in up-down direction and are respectively located at the top and bottom of the support; the driving rods are arranged in left-right direction, and a plurality of synchronous pulleys matched with the lifting belt 22 are arranged side by side on the driving rods in left-right direction; the lifting belt 22 is a synchronous belt, and the two ends of the lifting belt 22 are wound on the corresponding synchronous pulleys of the two driving rods in up-down direction; one of the driving rods is in transmission connection with the servo motor.

[0010] Specifically, a plurality of L-shaped plates are arranged side by side on the lifting belt 22 in up-down direction, and the L-shaped plates and the lifting belt 22 form a character-shaped groove 23; the rear end of the horizontal arm of the L-shaped plate on the front side of the lifting belt 22 is fixedly connected with the front side of the lifting belt 22, and the vertical arm is arranged on the upper side of the front end of the horizontal arm; the position avoiding notch 24 is a rectangular notch through which the L-shaped plate can pass, and the notch is arranged in front-rear direction; the number of the friction deceleration strips 25 is plural, and the plurality of friction deceleration strips 25 are arranged side by side in left-right direction and are spaced apart; the friction deceleration strip 25 is a rectangular strip arranged in left-right direction; the lifting baffle 26 is perpendicular to the guide plate 21, is located on the lower side of the guide plate 21, and can move upward to the upper side of the guide plate 21 to block the bandage strip 4, and after a first predetermined time, the lifting baffle 26 is lowered to allow the bandage strip 4 to pass; the guide plate 21 is provided with a strip gap through which the lifting baffle 26 passes in left-right direction.

[0011] Wherein, two cloth winding rollers 51 in the embodiment of the application are arranged side by side and are synchronously driven, the cloth pressing roller is located above the two cloth winding rollers 51 and can move up and down; the cloth pushing plate is located in front of the bandage strip 4 on the two cloth winding rollers 51 and can move backward to push the bandage strip 4 backward; two telescopic mandrels 52 are respectively located on the left and right sides of the frame 1 and are arranged along the left and right directions, are located above the two cloth winding rollers 51, can move left and right, and can synchronously move toward each other and away from each other; when the two telescopic mandrels 52 are in the state of moving toward each other, the opposite ends thereof are arranged adjacently; when the two telescopic mandrels 52 are in the state of moving away from each other, the opposite ends thereof are respectively located outside the corresponding sides of the bandage strip 4; the left and right sides of the frame 1 are respectively provided with an axle seat 53 for driving the corresponding telescopic mandrel 52 to move left and right; the frame 1 is sequentially provided with a supporting block 54, a cleaning groove 55 and a guide rail 56 outside the cloth winding roller 51; the supporting block 54 is arranged along the front and back directions and is located outside the cloth winding roller 51, is provided with a V-shaped groove on the left and right sides thereof for matching the telescopic mandrel 52, and is used for supporting the telescopic mandrel 52 so that the inner end of the telescopic mandrel 52 is suspended relative to the cloth winding roller 51; the cleaning groove 55 is arranged along the front and back directions, is provided with a gap for the telescopic mandrel 52 to pass through on the left and right sides thereof, and is provided with two cleaning sponges inside and respectively located on the front and back sides of the telescopic mandrel 52; the guide rail 56 is arranged on the outside of the corresponding side of the frame 1 along the left and right directions, the axle seat 53 is slidingly arranged on the guide rail 56 and is sequentially provided with a rotating seat 57 and a pneumatic cylinder seat 58 from inside to outside thereof; the axle seat 57 is provided with an axle sleeve 59 which can move up and down and rotate, the axle sleeve 59 is arranged along the front and back directions; the telescopic mandrel 52 is rotatably arranged on the axle sleeve 59; the pneumatic cylinder seat 58 is provided with a lifting pneumatic cylinder 510 above the outer end of the telescopic mandrel 52; the lifting pneumatic cylinder 510 is vertically arranged downward, the lower end of the telescopic rod thereof is provided with an inverted U-shaped gap for matching the telescopic mandrel 52 along the vertical direction; as the bandage strip 4 on the telescopic mandrel 52 gradually increases, the telescopic mandrel 52 gradually rises; when the two telescopic mandrels 52 move toward each other, the axle seat 53 moves inward, the lifting pneumatic cylinder 510 extends, the inverted U-shaped gap presses on the outer end of the telescopic mandrel 52, and the inner end of the telescopic mandrel 52 is lifted upward; when the telescopic mandrel 52 is in the state of moving toward each other, the lifting pneumatic cylinder 510 is contracted, and the telescopic mandrel 52 is placed on the supporting block 54.

[0012] The cutting cloth structure 6 in the embodiment of the present application comprises a lower slide plate 61, a cutting cloth cutter 62 in the middle of the lower slide plate 61 and capable of moving left and right, a plurality of air jet nozzles arranged side by side on the lower side of the front end of the lower slide plate 61, and a deceleration baffle 63 above the lower slide plate 61 and capable of moving up and down. The lower slide plate 61 is arranged obliquely downward from front to back, with its front end located adjacent to the rear of the cloth winding roller 51 and its rear end located adjacent to the front of the bandage wrapping structure 8. A cutter groove matched with the cutting cloth cutter 62 is arranged on the upper side of the lower slide plate 61 along the left and right directions. The air jet nozzles can blow air forward to push the rear end of the cut cloth 2 forward to cover on the telescopic mandrel 52. The deceleration baffle 63 is arranged along the left and right directions and located above the rear of the cutting cloth cutter 62. It is used to block the rear movement of the bandage strip 4. After the second predetermined time, the deceleration baffle 63 is raised to allow the bandage strip 4 to pass through.

[0013] The paper cutting glue spraying structure 7 in the embodiment of the present application comprises an upper slide plate 71, a pair of roller conveying mechanism 72 above the upper slide plate 71, a paper cutting cutter 73 on the upper part of the upper slide plate 71 and capable of moving left and right, a glue spraying head following the movement of the paper cutting cutter 73, and a paper pressing mechanism 74 on the lower part of the upper slide plate 71 and capable of moving up and down. The pair of roller conveying mechanism 72 is arranged along the left and right directions and located at the rear of the paper unwinding structure. The upper slide plate 71 is arranged obliquely downward from front to back, with its upper end located adjacent to the lower side of the pair of roller conveying mechanism 72 and its lower end located above the bandage wrapping structure 8. A cutter groove matched with the paper cutting cutter 73 is arranged on the upper side of the upper slide plate 71 along the left and right directions. The paper pressing mechanism 74 comprises a pressing rod arranged along the left and right directions, a driving assembly driving the pressing rod to move up and down, and a plurality of pressing discs arranged side by side on the lower side of the pressing rod. The pressing rod can move up and down in a direction perpendicular to the upper slide plate 71, and the pressing discs are parallel to the upper slide plate 71. When the paper cutting cutter 73 cuts the paper 3, the pressing discs press on the upper side of the paper 3 when the paper pressing mechanism 74 moves downward. After the paper cutting is completed, the paper pressing mechanism 74 rises, and the cut paper 3 falls to the bandage wrapping structure 8.

[0014] The bandage wrapping paper structure 8 in the embodiment of the present application comprises a stopper, two wrapping paper rollers 81 arranged side by side in front and back, a paper pressing roller above and movable up and down between the two wrapping paper rollers 81, and a wrapping paper driving assembly for driving the two wrapping paper rollers 81 to move towards each other and away from each other; when the two wrapping paper rollers 81 are in the state of moving away from each other, the bandage strip 4 on the two wrapping paper rollers 81 falls down from the gap between them; the wrapping paper roller 81, the paper pressing roller and the stopper are all arranged in the left-right direction, the wrapping paper roller 81 at the back is arranged on the rack 1, and the wrapping paper roller 81 at the front is movable in the front-back direction; the stopper is located adjacent to the top of the wrapping paper roller 81 at the back; the wrapping paper driving assembly comprises a driving motor, two horizontal sliding rails 82, two inclined sliding rails 83, two synchronous chains 84, two horizontal sliding seats 85, two inclined sliding seats 86, two synchronous chain wheels 87, two first air cylinders 88 and two second air cylinders 89; the two horizontal sliding rails 82 are arranged side by side on the left and right sides of the rack 1 in the left-right direction, and are arranged in the front-back direction, and are located in front of the left and right ends of the wrapping paper roller 81 at the back; the two horizontal sliding seats 85 are slidably arranged on the two horizontal sliding rails 82, and the left and right ends of the wrapping paper roller 81 at the front are arranged on the two horizontal sliding seats 85; the two inclined sliding rails 83 are arranged side by side on the left and right sides of the rack 1 in the left-right direction, and are located below the wrapping paper roller 81 at the front, and are arranged obliquely upwards and rearwards; the two inclined sliding seats 86 are slidably arranged on the two inclined sliding rails 83, and the two synchronous chain wheels 87 are arranged on the two inclined sliding seats 86; the left and right ends of the two wrapping paper rollers 81 are provided with chain wheels, and the two synchronous chains 84 are arranged at the left and right ends of the wrapping paper rollers 81, and the synchronous chains 84 are wound around the chain wheels at the corresponding ends and the synchronous chain wheels 87 and are in a triangular shape; the two first air cylinders 88 are synchronously driven and are used for driving the two horizontal sliding seats 85 to move in the front-back direction respectively, and the first air cylinders 88 are arranged obliquely upwards and forwards on the corresponding sides of the rack 1; the two second air cylinders 89 are synchronously driven and are used for driving the two inclined sliding seats 86 to move up and down respectively, and the second air cylinders 89 are arranged obliquely downwards and rearwards; when the two wrapping paper rollers 81 move away from each other, the horizontal sliding seats 85 move forwards, and the inclined sliding seats 86 move upwards.

[0015] Further, the material collecting groove 9 in the embodiment of the present application is arranged obliquely downwards from back to front, and the rear part is located directly below the bandage wrapping paper structure 8; the rack 1 is provided with a sliding groove for the material collecting groove 9 to slide out rearwards; the sliding groove is arranged on the left and right sides of the material collecting groove 9; the rack 1 or the sliding groove is provided with a locking structure for locking the material collecting groove 9; when the discharging groove is installed, the front part of the discharging groove is fixed on the rack 1 or the sliding groove by the locking structure. In another aspect, the embodiment of the present application also provides a preparation method of the bandage, which comprises: for preparing the non-paper-covered bandage strip, the paper unwinding structure, the paper cutting and glue spraying structure 7, the bandage slitting structure 11 and the bandage strip lifting structure 12 are not worked, the material collecting groove 9 is installed, and the transfer structure 10 is removed; for preparing the paper-covered bandage strip, the paper unwinding structure and the paper cutting and glue spraying structure 7 are worked, the bandage slitting structure 11 and the bandage strip lifting structure 12 are not worked, the material collecting groove 9 is installed, and the transfer structure 10 is removed; for preparing the non-paper-covered bandage, the paper unwinding structure and the paper cutting and glue spraying structure 7 are not worked, the bandage slitting structure 11 and the bandage strip lifting structure 12 are worked, the material collecting groove 9 is removed, and the transfer structure 10 is installed; for preparing the paper-covered bandage, the paper unwinding structure, the paper cutting and glue spraying structure 7, the bandage slitting structure 11 and the bandage strip lifting structure 12 are worked, the material collecting groove 9 is removed, and the transfer structure 10 is installed.

[0016] The technical scheme provided by the embodiment of the present application has the beneficial effects that: (1) The degree of automation is high, and manual participation is not needed, so that the slitting of the bandage strip is automatically realized; (2) Four kinds of products can be produced, and the switching is simple, and the four kinds of products are respectively the non-paper-covered bandage strip, the paper-covered bandage strip, the non-paper-covered bandage and the paper-covered bandage; (3) The product quality is good, and the speed reduction structure is arranged at multiple positions to clean the telescopic mandrel and the like; (4) The service life of the telescopic mandrel is long, and the telescopic mandrel is not easy to be worn (the support block is arranged, and the telescopic mandrel is lifted outward and the like). BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of the automatic preparation device of the bandage in the embodiment of the present application when producing the bandage strip; Figure 2 is a structural schematic view of the automatic preparation device of the bandage in the embodiment of the present application when producing the bandage; Figure 3 is a structural schematic view of the telescopic mandrel, the shaft seat, the support block and the cleaning groove combination; Figure 4 is a structural schematic view of the shaft seat; Figure 5 is a structural schematic view of the air cylinder seat; Figure 6 is a structural schematic view of the paper covering driving assembly; Figure 7 is a structural schematic view of the guide plate.

[0018] In the figure: 1 is a rack, 2 is cloth, 3 is paper, 4 is a bandage strip, 5 is a gauze core pulling and rolling structure, 6 is a cloth cutting structure, 7 is a paper cutting and glue spraying structure, 8 is a bandage paper covering structure, 9 is a material collecting groove, 10 is a transfer structure, 11 is a bandage slitting structure, and 12 is a bandage strip lifting structure. 21 guide plate, 22 lifting belt, 23 inverted U-shaped groove, 24 position-avoiding notch, 25 friction deceleration strip, 26 lifting baffle; 51 cloth winding roller, 52 telescopic mandrel, 53 shaft seat, 54 supporting block, 55 cleaning groove, 56 guide rail, 57 rotating seat, 58 cylinder seat, 59 shaft sleeve, 510 lifting cylinder; 61 lower sliding plate, 62 cloth cutting knife, 63 deceleration baffle; 71 upper sliding plate, 72 pair of roller conveying mechanism, 73 paper cutting knife, 74 paper pressing mechanism; 81 paper wrapping roller, 82 horizontal sliding rail, 83 inclined sliding rail, 84 synchronous chain, 85 horizontal sliding seat, 86 inclined sliding seat, 87 synchronous sprocket, 88 first cylinder, 89 second cylinder. DETAILED DESCRIPTION

[0019] In order to make the object, technical scheme and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings.

[0020] Embodiment 1 Referring to Figures 1-7 , embodiment 1 provides an automatic preparation device of bandage, which comprises a rack 1, a cloth unwinding structure, a paper unwinding structure, a gauze core extraction and winding structure 5, a cloth cutting structure 6, a paper cutting and glue spraying structure 7, a bandage paper wrapping structure 8, a material collecting groove 9, a transfer structure 10, a bandage slitting structure 11 and a bandage strip lifting structure 12. The cloth unwinding structure, the paper unwinding structure, the gauze core extraction and winding structure 5, the cloth cutting structure 6, the paper cutting and glue spraying structure 7 and the bandage paper wrapping structure 8 are all arranged on the rack 1. The cloth unwinding structure, the gauze core extraction and winding structure 5, the cloth cutting structure 6 and the bandage paper wrapping structure 8 are sequentially arranged from front to back, the cloth unwinding structure is used for outputting cloth 2, the gauze core extraction and winding structure 5 is used for winding to form a bandage strip 4, and the cloth cutting structure 6 is used for cutting the cloth 2; the bandage paper wrapping structure 8 has two functions: one is to tightly wind the cloth 2 (winding a predetermined number of turns), and the other is to wrap paper. The paper unwinding structure, the paper cutting and glue spraying structure 7 and the bandage paper wrapping structure 8 are sequentially arranged from front to back, and the paper unwinding structure and the paper cutting and glue spraying structure 7 are both located above the gauze core extraction and winding structure 5. The paper unwinding structure is used for outputting paper 3, and the paper cutting and glue spraying structure 7 is used for cutting the paper 3 and spraying glue at the cutting position, which is similar to the prior art.

[0021] The material collecting groove 9 is located directly below the bandage paper wrapping structure 8, and the transfer structure 10 comprises a discharging groove and a plurality of (2-4, specifically 4) guide strips. The discharging groove and the material collecting groove 9 are alternatively installed and are both detachably arranged on the rack 1.

[0022] The bandage cutting structure 11 includes a feeding conveyor, a sawing structure, and an output conveyor arranged sequentially from left to right. The feeding and output conveyors are both arranged in the left-right direction, while the sawing structure is arranged vertically. The feeding conveyor can reciprocate back and forth, and its end clamps the bandage strip 4 and feeds it to the sawing structure in the back-and-forth direction to achieve cutting.

[0023] The bandage strip lifting structure 12 is located directly behind the bandage wrapping structure 8 (the distance between them is greater than the front-to-back length of the receiving trough 9, preferably greater than 1m, to facilitate operation and removal of the receiving trough 9). It is positioned in front of the feeding conveyor mechanism and includes a support frame and its guide plate 21, a servo motor, two drive rods, and multiple (specifically 2-6, 3 in particular) lifting belts 22. The multiple lifting belts 22 are arranged side-by-side and driven synchronously. Specifically, the two drive rods are arranged vertically side-by-side, located at the top and bottom of the support frame, respectively. The drive rods are arranged horizontally, with multiple synchronous pulleys arranged side-by-side on them to cooperate with the lifting belts 22. The lifting belts 22 are synchronous belts, with their upper and lower ends wrapped around the synchronous pulleys corresponding to the two drive rods. One drive rod is connected to the servo motor. The lifting belts 22 are vertically arranged and have an upward-opening U-shaped groove 23 that cooperates with the bandage strip 4. Specifically, multiple L-shaped plates are arranged side by side on the lifting belt 22, forming a U-shaped groove 23 with the lifting belt 22. The rear end of the horizontal arm of the L-shaped plate on the front side of the lifting belt 22 is fixedly connected to the front side of the lifting belt 22, and its vertical arm (located on the rear side of the bandage strip 4) is located on the upper side of the front end of the horizontal arm.

[0024] The guide plate 21 is arranged diagonally downwards from front to back. Its upper end is located below and in front of the top of the lifting belt 22, and its lower end is located directly above the feeding conveyor mechanism. Multiple clearance notches 24 (corresponding one-to-one with the lifting belt 22) are arranged side-by-side on its upper end to allow the passage of the U-shaped grooves 23. Friction deceleration strips 25 and lifting baffles 26 are arranged sequentially from top to bottom on the guide plate. The clearance notches 24 are rectangular notches that allow the passage of L-shaped plates and are arranged along the front-back direction. Both the friction deceleration strips 25 and the lifting baffles 26 are used to decelerate the bandage strips 4. There are multiple friction deceleration strips 25 (2-6 strips), arranged side-by-side with intervals. The friction deceleration strips 25 are rectangular strips arranged along the left-right direction. The lifting baffles 26 are arranged along the left-right direction and can move up and down, preventing the bandage strips 4 from rolling downwards. Specifically, the lifting baffle 26 is perpendicular to the guide plate 21 and is located below the guide plate 21. It can move upward (driven by a corresponding structure, specifically a cylinder) to above the guide plate 21 to block the bandage strip 4, and then descend after a first predetermined time (e.g., 0.1s) to allow the bandage strip 4 to pass through. The guide plate 21 has slits along its left and right sides for the lifting baffle 26 to pass through. More specifically, there are multiple lifting baffles 26, which are arranged side by side and driven synchronously.

[0025] For producing bandage strip 4, collecting chute 9 is installed, transfer structure 10 is removed, bandage slitting structure 11 and bandage strip lifting structure 12 are not working.

[0026] For producing bandage, transfer structure 10 is installed, collecting chute 9 is removed, bandage slitting structure 11 and bandage strip lifting structure 12 are working. At this time, the discharge chute is arranged obliquely downward from front to back, and the front part thereof is located directly below bandage wrapping structure 8. A plurality of guide strips are arranged side by side, staggered with lifting belt 22, and located on the same inclined surface as the discharge chute. The guide strips are arranged obliquely downward from front to back, the front end thereof is connected with the rear end of the discharge chute, and the rear end thereof is detachably connected with the bottom of the support. The guide strips guide the bandage strip 4 to the U-shaped groove 23 at the front side of the lifting belt 22, and the guide strips are specifically thin metal strips.

[0027] Among them, referring to Figures 1-5 The gauze core-pulling and rolling structure 5 in the embodiment of the application includes a pressing roller, a rolling plate, two telescopic shafts 52 and two cloth rolling rollers 51. The two cloth rolling rollers 51 are arranged side by side in front of and behind each other, are synchronously driven, are arranged on the frame 1 in the left-right direction, and are rough surface rollers. The pressing roller is located above the two cloth rolling rollers 51, can move up and down (is arranged on a corresponding pressing arm and can be driven to move by a cylinder), is arranged in the left-right direction, is a smooth roller, and can be pressed on the upper side of the bandage strip 4. The rolling plate is located directly in front of the bandage strip 4 above the two cloth rolling rollers 51, can move backward to push the bandage strip 4 backward, is arranged in the left-right direction, is driven to move by a corresponding cylinder, and is specifically an L-shaped plate. The two telescopic shafts 52 are respectively located on the left and right sides of the frame 1, are arranged in the left-right direction, are located adjacent to above the two cloth rolling rollers 51, can move in the left-right direction, can synchronously move towards each other and away from each other, and are smooth round rods (the diameter is less than 1 cm). When the two telescopic shafts 52 are in the state of moving towards each other, the opposite ends thereof are arranged adjacent to each other. When the two telescopic shafts 52 are in the state of moving away from each other, the opposite ends thereof are respectively located outside the corresponding sides of the bandage strip 4.

[0028] Referring to Figures 3-5, the left and right sides of the rack 1 are respectively provided with two shaft seats 53 for driving the telescopic mandrels 52 to move leftward and rightward, and the rack 1 (left and right sides) and outside the cloth roller 51 are sequentially provided with two support blocks 54, two cleaning grooves 55 and two guide rails 56. The support block 54 is arranged along the front and back direction, and is located adjacent to the outside of the cloth roller 51. A V-shaped groove is arranged on the support block 54 along the left and right direction, and is matched with the telescopic mandrel 52. The support block 54 is used for supporting the telescopic mandrel 52, so that the inner end of the telescopic mandrel 52 is suspended relative to the cloth roller 51 to avoid the telescopic mandrel 52 from being worn. The cleaning groove 55 is arranged along the front and back direction, and is provided with a gap for the telescopic mandrel 52 to pass through. Two cleaning sponges are arranged in the cleaning groove 55 and are respectively located on the front and back sides of the telescopic mandrel 52. The two cleaning sponges are in contact with the front and back sides of the telescopic mandrel 52, and are soft in structure. The two cleaning sponges are used for cleaning the telescopic mandrel 52.

[0029] Referring to Figures 3-5 , the guide rail 56 is arranged on the outside of the corresponding side of the rack 1 along the left and right direction. The shaft seat 53 is slidably arranged on the guide rail 56, and the shaft seat 53 is sequentially provided with a rotating seat 57 and a cylinder seat 58 from inside to outside. The rotating seat 57 and the cylinder seat 58 are arranged along the left and right direction and are driven to move leftward and rightward by corresponding structures. The two shaft seats 53 are synchronously driven. The shaft sleeve 59 which can move upward and downward and rotate is arranged on the rotating seat 57. The shaft sleeve 59 is arranged along the front and back direction. The telescopic mandrel 52 is rotatably arranged on the shaft sleeve 59. The cylinder seat 58 is located at the outer end of the telescopic mandrel 52. The cylinder seat 58 is provided with a lifting cylinder 510 above the outer end of the telescopic mandrel 52. The two lifting cylinders 510 are synchronously driven. The lifting cylinder 510 is vertically arranged downward. The lower end of the telescopic rod of the lifting cylinder 510 is provided with a reverse U-shaped gap matched with the telescopic mandrel 52 along the vertical direction.

[0030] The telescopic mandrel 52 gradually rises as the bandage strip 4 on the telescopic mandrel 52 gradually increases. When the two telescopic mandrels 52 move towards each other, the shaft seat 53 moves inward, the lifting cylinder 510 is stretched, the reverse U-shaped gap is pressed on the outer end of the telescopic mandrel 52, and the inner end of the telescopic mandrel 52 is lifted upward. When the telescopic mandrel 52 is in the state of moving towards each other, the lifting cylinder 510 is retracted, the telescopic mandrel 52 is horizontal, and the telescopic mandrel 52 is placed on the support block 54.

[0031] Specifically, the rotating seat 57 includes two rotating arms arranged side by side in front and back directions. The rotating arms are vertically arranged and are provided with long circular holes along the vertical direction. The shaft sleeve 59 is located between the two rotating arms and is provided with two rotating shafts at the front and back ends. The two rotating shafts are arranged along the left and right direction and are located on the same straight line. The two rotating shafts are respectively located in the long circular holes of the two rotating arms and can rotate and move upward and downward in the long circular holes. The cylinder seat 58 is a door type support.

[0032] Referring to Figures 1-2The cutting cloth structure 6 in the embodiment of the present application comprises a lower slide plate 61, a cutting cloth cutter 62, a deceleration baffle 63 and a plurality of air jet nozzles, etc. The lower slide plate 61 is arranged obliquely downward from front to back, with its front end located adjacent to the rear of the rear cloth winding roller 51 and its rear end located adjacent to the front of the bandage paper wrapping structure 8. A cutter groove cooperating with the cutting cloth cutter 62 is arranged on the upper side of the lower slide plate 61 in the left-right direction. The cutting cloth cutter 62 is arranged at the middle part of the lower slide plate 61 and can move in the left-right direction, which is used to cut the cloth 2. The plurality of air jet nozzles are arranged side by side in the left-right direction and are arranged at the lower side of the front end of the lower slide plate 61, which can blow air forward to make the rear end of the cut cloth 2 move forward to cover on the telescopic mandrel 52. The deceleration baffle 63 is located above the lower slide plate 61 and can move up and down, which is arranged in the left-right direction and is located above the rear of the cutting cloth cutter 62, which is used to block the rear movement of the bandage strip 4 and decelerate the bandage strip 4. After a second predetermined time (such as 0.1s), the deceleration baffle 63 is raised to allow the bandage strip 4 to pass. Specifically, the deceleration baffle 63 is an L-shaped plate, which is driven to move by a corresponding air cylinder and moves obliquely downward from front to back.

[0033] In the embodiment of the present application, the cutting cloth structure 6 comprises a lower slide plate 61, a cutting cloth cutter 62, a deceleration baffle 63 and a plurality of air jet nozzles, etc. The lower slide plate 61 is arranged obliquely downward from front to back, with its front end located adjacent to the rear of the rear cloth winding roller 51 and its rear end located adjacent to the front of the bandage paper wrapping structure 8. A cutter groove cooperating with the cutting cloth cutter 62 is arranged on the upper side of the lower slide plate 61 in the left-right direction. The cutting cloth cutter 62 is arranged at the middle part of the lower slide plate 61 and can move in the left-right direction, which is used to cut the cloth 2. The plurality of air jet nozzles are arranged side by side in the left-right direction and are arranged at the lower side of the front end of the lower slide plate 61, which can blow air forward to make the rear end of the cut cloth 2 move forward to cover on the telescopic mandrel 52. The deceleration baffle 63 is located above the lower slide plate 61 and can move up and down, which is arranged in the left-right direction and is located above the rear of the cutting cloth cutter 62, which is used to block the rear movement of the bandage strip 4 and decelerate the bandage strip 4. After a second predetermined time (such as 0.1s), the deceleration baffle 63 is raised to allow the bandage strip 4 to pass. Specifically, the deceleration baffle 63 is an L-shaped plate, which is driven to move by a corresponding air cylinder and moves obliquely downward from front to back. Figures 1-2 The cutting paper glue spraying structure 7 in the embodiment of the present application comprises an upper slide plate 71, a pair of roller conveying mechanism 72, a cutting paper cutter 73, a glue spraying head (not shown in the figure) and a paper pressing mechanism 74, etc. The upper slide plate 71 is arranged obliquely downward from front to back, which is located above the lower slide plate 61, with its inclination angle (greater than 40°) being greater than the inclination angle (less than 30°) of the lower slide plate 61. The upper end of the upper slide plate 71 is located adjacent to the lower side of the pair of roller conveying mechanism 72 and the lower end is located above the bandage paper wrapping structure 8. A cutter groove cooperating with the cutting paper cutter 73 is arranged on the upper side of the upper slide plate 71 in the left-right direction. The pair of roller conveying mechanism 72 is arranged in the left-right direction and is located behind the paper unwinding structure. The cutting paper cutter 73 is arranged at the upper part of the upper slide plate 71 and can move in the left-right direction, which is used to cut the paper 3. The glue spraying head moves with the cutting paper cutter 73 and sprays glue to the cut part of the paper 3 to ensure that the paper 3 forms a cylinder to wrap the bandage strip 4. The paper pressing mechanism 74 is located above the lower part of the upper slide plate 71 and can move up and down. The paper pressing mechanism 74 moves downward to press the paper 3 tightly on the upper slide plate 71, which comprises a pressing rod arranged in the left-right direction, a driving assembly driving the pressing rod to move up and down and a plurality of (3-6) pressure plates arranged side by side in the left-right direction on the lower side of the pressing rod, etc. The pressing rod can move up and down in the direction perpendicular to the upper slide plate 61 and the pressure plates are parallel to the upper slide plate 71. When the cutting paper cutter 73 cuts the paper 3, the pressure plates press the upper side of the paper 3 when the paper pressing mechanism 74 moves downward. After the cutting is completed, the paper pressing mechanism 74 rises and the cut paper 3 slides to the bandage paper wrapping structure 8.

[0034] In the embodiment of the present application, the cutting paper glue spraying structure 7 comprises an upper slide plate 71, a pair of roller conveying mechanism 72, a cutting paper cutter 73, a glue spraying head (not shown in the figure) and a paper pressing mechanism 74, etc. The upper slide plate 71 is arranged obliquely downward from front to back, which is located above the lower slide plate 61, with its inclination angle (greater than 40°) being greater than the inclination angle (less than 30°) of the lower slide plate 61. The upper end of the upper slide plate 71 is located adjacent to the lower side of the pair of roller conveying mechanism 72 and the lower end is located above the bandage paper wrapping structure 8. A cutter groove cooperating with the cutting paper cutter 73 is arranged on the upper side of the upper slide plate 71 in the left-right direction. The pair of roller conveying mechanism 72 is arranged in the left-right direction and is located behind the paper unwinding structure. The cutting paper cutter 73 is arranged at the upper part of the upper slide plate 71 and can move in the left-right direction, which is used to cut the paper 3. The glue spraying head moves with the cutting paper cutter 73 and sprays glue to the cut part of the paper 3 to ensure that the paper 3 forms a cylinder to wrap the bandage strip 4. The paper pressing mechanism 74 is located above the lower part of the upper slide plate 71 and can move up and down. The paper pressing mechanism 74 moves downward to press the paper 3 tightly on the upper slide plate 71, which comprises a pressing rod arranged in the left-right direction, a driving assembly driving the pressing rod to move up and down and a plurality of (3-6) pressure plates arranged side by side in the left-right direction on the lower side of the pressing rod, etc. The pressing rod can move up and down in the direction perpendicular to the upper slide plate 61 and the pressure plates are parallel to the upper slide plate 71. When the cutting paper cutter 73 cuts the paper 3, the pressure plates press the upper side of the paper 3 when the paper pressing mechanism 74 moves downward. After the cutting is completed, the paper pressing mechanism 74 rises and the cut paper 3 slides to the bandage paper wrapping structure 8. Figures 1-2And 6, the bandage wrapping paper structure 8 in the embodiment of the application includes a stopper, a paper pressing roller, a wrapping paper driving assembly and two wrapping paper rollers 81, etc. The two wrapping paper rollers 81 are arranged side by side in front and back, and each is a rough roller arranged along the left-right direction. The wrapping paper roller 81 at the back is arranged on the rack 1 (fixed), and the wrapping paper roller 81 at the front can move forward and backward. The paper pressing roller is arranged above the two wrapping paper rollers 81 and can move up and down (driven by a corresponding air cylinder), and is arranged along the left-right direction and is a smooth roller which can be pressed on the upper side of the bandage strip 4. The stopper is arranged above the adjacent side of the wrapping paper roller 81 at the back and is used to block and limit the bandage strip 4, and is arranged on the rack 1 along the left-right direction.

[0035] Wherein, referring to Figure 6 , the wrapping paper driving assembly is used to drive the two wrapping paper rollers 81 to move towards each other and away from each other (achieved by the forward and backward movement of the wrapping paper roller 81 at the front). When the two wrapping paper rollers 81 are in the state of moving away from each other, the bandage strip 4 on them falls down from the gap between them. The wrapping paper driving assembly includes a driving motor, two horizontal sliding rails 82, two inclined sliding rails 83, two synchronous chains 84, two horizontal sliding seats 85, two inclined sliding seats 86, two synchronous chain wheels 87, two first air cylinders 88 and two second air cylinders 89, etc. The two horizontal sliding rails 82 are arranged side by side on the left and right sides of the rack 1 along the front and back direction, and are respectively arranged in front of the left and right ends of the wrapping paper roller 81 at the back, and are provided with limiting structures. The two horizontal sliding seats 85 are respectively arranged on the two horizontal sliding rails 82, and the left and right ends of the wrapping paper roller 81 at the front are respectively arranged on the two horizontal sliding seats 85. The two inclined sliding rails 83 are arranged side by side on the left and right sides of the rack 1 below the wrapping paper roller 81 at the front, and are arranged obliquely from below to above and rearward, and are provided with limiting structures. The two inclined sliding seats 86 are respectively arranged on the two inclined sliding rails 83, and the two synchronous chain wheels 87 are respectively arranged on the inner sides of the two inclined sliding seats 86 along the left-right direction. The left and right ends of the two wrapping paper rollers 81 are each provided with a chain wheel, and the two synchronous chains 84 are respectively arranged at the left and right ends of the wrapping paper rollers 81, and the synchronous chains 84 are wound around the chain wheels (the chain wheels at the same end of the two wrapping paper rollers 81) and the synchronous chain wheels 87 at the corresponding end and are in a triangular shape. The two first air cylinders 88 are synchronously driven and are used to respectively drive the two horizontal sliding seats 85 to move forward and backward. The first air cylinders 88 are arranged obliquely from below to above and forward on the corresponding side (left or right) of the rack 1, and are hingedly arranged with the rack 1 and the horizontal sliding seat 85. The two second air cylinders 89 are synchronously driven and are used to respectively drive the two inclined sliding seats 86 to move up and down, and the second air cylinders 89 are arranged obliquely from below to above and rearward on the corresponding side (left or right) of the rack 1. When the two wrapping paper rollers 81 move away from each other (the wrapping paper roller 81 at the front moves forward), the first air cylinders 88 are stretched, the horizontal sliding seats 85 move forward, the second air cylinders 89 are stretched, and the inclined sliding seats 86 move upward.

[0036] Embodiment 2 Referring toFigures 1-2 The embodiment 2 provides an automatic preparation device of the bandage, which has the same structure as that of the embodiment 1, and the difference is that the feeding conveying mechanism in the embodiment 2 comprises a conveying belt and two side plates.

[0037] Embodiment 3 The embodiment 3 provides an automatic preparation device of the bandage, which has the same structure as that of the embodiment 1, and the difference is that the material collecting groove 9 in the embodiment 3 is arranged obliquely downward from back to front, and the rear part of the material collecting groove 9 is located directly below the bandage wrapping paper structure 8. The rack 1 is provided with a sliding groove for the material collecting groove 9 to slide out backward. The sliding grooves are arranged on the left and right sides of the material collecting groove 9, and the structure of the sliding groove and the material collecting groove 9 can refer to the structure of a drawer. The rack 1 or the sliding groove is provided with a locking structure (which can be a locking bolt arranged in the left-right direction) for locking the material collecting groove 9. When the material collecting groove is installed, the front part of the material collecting groove is fixed on the rack 1 or the sliding groove through the locking structure. Embodiment 4 The embodiment 4 provides a preparation method of the bandage, which adopts the automatic preparation device of the bandage disclosed in the embodiments 1-3, and the method comprises the following steps. When the bandage strip without wrapping paper is prepared, the paper unwinding structure, the paper cutting and glue spraying structure 7, the bandage slitting structure 11 and the bandage strip lifting structure 12 are not worked, the material collecting groove 9 is installed, and the transfer structure 10 is removed.

[0038] When the bandage strip with wrapping paper is prepared, the paper unwinding structure and the paper cutting and glue spraying structure 7 are worked, the bandage slitting structure 11 and the bandage strip lifting structure 12 are not worked, the material collecting groove 9 is installed, and the transfer structure 10 is removed.

[0039] When the bandage without wrapping paper is prepared, the paper unwinding structure and the paper cutting and glue spraying structure 7 are not worked, the bandage slitting structure 11 and the bandage strip lifting structure 12 are worked, the material collecting groove 9 is removed, and the transfer structure 10 is installed.

[0040] When the bandage with wrapping paper is prepared, the paper unwinding structure, the paper cutting and glue spraying structure 7, the bandage slitting structure 11 and the bandage strip lifting structure 12 are worked, the material collecting groove 9 is removed, and the transfer structure 10 is installed.

[0041] The paper unwinding structure, the gauze core pulling and winding structure 5, the cloth cutting structure 6 and the bandage wrapping paper structure 8 are all worked.

[0042] The above merely describes preferred embodiments of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An automatic production device of bandage, comprising a rack (1) and a cloth unwinding structure, a paper unwinding structure, a gauze core-pulling and winding structure (5), a cloth cutting structure (6), a paper cutting and glue spraying structure (7), a bandage paper wrapping structure (8) and a receiving groove (9) on the rack, the cloth unwinding structure, the gauze core-pulling and winding structure (5), the cloth cutting structure (6) and the bandage paper wrapping structure (8) are sequentially arranged from front to back, the paper unwinding structure, the paper cutting and glue spraying structure (7) and the bandage paper wrapping structure (8) are sequentially arranged from front to back, the paper unwinding structure and the paper cutting and glue spraying structure (7) are both above the gauze core-pulling and winding structure (5), the receiving groove (9) is directly below the bandage paper wrapping structure (8), and the gauze core-pulling and winding structure (5) comprises a cloth pressing roller, a winding plate, two telescopic shafts (52) and two cloth winding rollers (51); characterized in that, the device further comprises a transfer structure (10), a bandage slitting structure (11) and a bandage strip lifting structure (12), the bandage slitting structure (11) comprises a feeding conveying mechanism, a sawing structure and a discharging conveying mechanism which are sequentially arranged from left to right and upward, and the feeding conveying mechanism is arranged along the left-right direction; the transfer structure (10) comprises a discharging groove and a plurality of guide strips; the discharging groove and the receiving groove (9) are alternatively installed and both are detachably arranged on the rack (1); the bandage strip lifting structure (12) is located directly behind the bandage paper wrapping structure (8) and in front of the feeding conveying mechanism, and comprises a support and a guide plate (21) and a plurality of lifting belts (22) on the support; the plurality of lifting belts (22) are arranged side by side along the left-right direction and are synchronously driven, the lifting belts (22) are vertically arranged and are provided with a Chinese character 'fang' shaped groove (23) which cooperates with the bandage strip (4) and is open upward; the guide plate (21) is arranged obliquely downward from front to back, the upper end thereof is located below the front top of the lifting belts (22), the lower end thereof is located directly above the feeding conveying mechanism, the upper end thereof is provided with a plurality of avoidance notches (24) for the Chinese character 'fang' shaped grooves (23) which pass through and is sequentially provided with a friction deceleration strip (25) and a lifting baffle (26) from top to bottom; the lifting baffle (26) is arranged along the left-right direction and can move up and down and can block the bandage strip (4) from rolling downward; when the bandage strip (4) is produced, the receiving groove (9) is installed; when the bandage is produced, the transfer structure (10) is installed; the discharging groove is arranged obliquely downward from front to back, and the front part thereof is located directly below the bandage paper wrapping structure (8); the plurality of guide strips are arranged side by side along the left-right direction and are staggered with the lifting belts (22); the guide strips are arranged obliquely downward from front to back, the front end thereof is connected with the rear end of the discharging groove, the rear end thereof is connected with the bottom of the support, and the guide strips guide the bandage strip (4) to the Chinese character 'fang' shaped grooves (23) on the front side of the lifting belts (22).

2. The apparatus of claim 1, wherein, The feeding conveying mechanism can reciprocate forward and backward, which comprises a conveying belt and two side plates; the two side plates are arranged side by side in front and back, and are respectively located adjacent to the front and rear of the bandage strip (4) and adjacent to the upper side of the left and right ends of the conveying belt; the upper end of the front side plate is located adjacent to the lower side of the rear end of the guide plate (21), and the top of the rear side plate is provided with a plurality of inclined baffles side by side; the inclined baffles are arranged obliquely downward from rear to front.

3. The apparatus of claim 2, wherein, The bandage strip lifting structure (12) further comprises two drive rods and a servo motor; the two drive rods are arranged side by side in up and down, and are respectively located at the top and bottom of the bracket; the drive rods are arranged in left and right, and a plurality of synchronous pulleys matched with the lifting belt (22) are arranged side by side on the drive rods; the lifting belt (22) is a synchronous belt, and the upper and lower ends of the lifting belt (22) are wound on the corresponding synchronous pulleys of the two drive rods; one of the drive rods is in transmission connection with the servo motor.

4. The apparatus of claim 2, wherein, A plurality of L-shaped plates are arranged side by side on the lifting belt (22), and the L-shaped plates and the lifting belt (22) form a character-shaped groove (23); the rear end of the horizontal arm of the L-shaped plate on the front side of the lifting belt (22) is fixedly connected with the front side of the lifting belt (22), and the vertical arm is arranged on the upper side of the front end of the horizontal arm; the position avoiding notch (24) is a rectangular notch through which the L-shaped plate passes, and is arranged in front and back; the number of the friction deceleration strips (25) is multiple, and the multiple friction deceleration strips (25) are arranged side by side and spaced apart in left and right, and the friction deceleration strips (25) are rectangular strips arranged in left and right; the lifting baffle (26) is perpendicular to the guide plate (21), is located on the lower side of the guide plate (21), can move upward to the upper side of the guide plate (21) to block the bandage strip (4), and can descend after a first predetermined time to allow the bandage strip (4) to pass; a strip gap is provided on the guide plate (21) for the lifting baffle (26) to pass through.

5. The apparatus of claim 1, wherein, Two cloth winding rollers (51) are arranged side by side in front and back and are synchronously driven, the cloth pressing roller is located above the two cloth winding rollers (51) and can move up and down; the winding plate is located in front of the bandage strip (4) on the two cloth winding rollers (51) and can move backward to push the bandage strip (4) backward; two telescopic shafts (52) are respectively located on the left and right sides of the rack (1) and are arranged in left and right, are located adjacent to the upper side of the two cloth winding rollers (51), can move in left and right, and can synchronously move towards and away from each other; when the two telescopic shafts (52) are in the state of moving towards each other, the opposite ends are arranged adjacent to each other; when the two telescopic shafts (52) are in the state of moving away from each other, the opposite ends are respectively located on the outer side of the corresponding side of the bandage strip (4). The left and right sides of the frame (1) are provided with shaft seats (53) for driving the left and right movement of the corresponding side telescopic mandrels (52), and the frame (1) is sequentially provided with a support block (54), a cleaning groove (55) and a guide rail (56) on the outer side of the cloth winding roller (51); the support block (54) is arranged in the front and back direction and is located on the adjacent outer side of the cloth winding roller (51), and a V-shaped groove matched with the telescopic mandrel (52) is arranged on the support block (54) in the left and right direction, which is used to support the telescopic mandrel (52) to make the inner end of the telescopic mandrel (52) suspended relative to the cloth winding roller (51); the cleaning groove (55) is arranged in the front and back direction, and the left and right sides of the cleaning groove (55) are provided with notches for the telescopic mandrel (52) to pass through, and two cleaning sponges are arranged in the cleaning groove (55) and located on the front and back sides of the telescopic mandrel (52) respectively; the guide rail (56) is arranged on the outer side of the corresponding side of the frame (1) in the left and right direction, the shaft seat (53) is slidably arranged on the guide rail (56), and a rotating seat (57) and a cylinder seat (58) are sequentially arranged on the shaft seat (53) from the inside to the outside; the rotating seat (57) is provided with a shaft sleeve (59) capable of moving up and down and rotating, and the shaft sleeve (59) is arranged in the front and back direction; the telescopic mandrel (52) is rotatably arranged on the shaft sleeve (59); the cylinder seat (58) is provided with a lifting cylinder (510) above the outer end of the telescopic mandrel (52); the lifting cylinder (510) is vertically arranged downward, and the lower end of the telescopic rod of the lifting cylinder (510) is provided with an inverted U-shaped notch matched with the telescopic mandrel (52) in the vertical direction; as the bandage strip (4) on the telescopic mandrel (52) gradually increases, the telescopic mandrel (52) gradually rises; when the two telescopic mandrels (52) move towards each other, the shaft seat (53) moves inward, the lifting cylinder (510) extends, the inverted U-shaped notch presses on the outer end of the telescopic mandrel (52), and the inner end of the telescopic mandrel (52) is lifted upward; when the telescopic mandrels (52) are in the opposite state, the lifting cylinder (510) is retracted, and the telescopic mandrel (52) is placed on the support block (54).

6. The apparatus of claim 5, wherein, The cloth cutting structure (6) comprises a lower sliding plate (61), a cloth cutting knife (62) in the middle of the lower sliding plate (61) and capable of moving left and right, a plurality of air jet nozzles arranged side by side on the lower side of the front end of the lower sliding plate (61) and left and right, and a speed reduction baffle (63) above the lower sliding plate (61) and capable of moving up and down; the lower sliding plate (61) is arranged obliquely downward from front to back, the front end of the lower sliding plate (61) is located adjacent to the rear of the cloth winding roller (51), the rear end of the lower sliding plate (61) is located adjacent to the front of the bandage wrapping structure (8), and a knife groove matched with the cloth cutting knife (62) is arranged on the lower sliding plate (61) in the left and right direction; the air jet nozzles can blow air forward to make the rear end of the cut cloth (2) move forward to cover on the telescopic mandrel (52); the speed reduction baffle (63) is arranged in the left and right direction and located above the rear of the cloth cutting knife (62), and is used to block the movement of the bandage strip (4) backward; after a second predetermined time, the speed reduction baffle (63) is lifted to allow the bandage strip (4) to pass.

7. The apparatus of claim 6, wherein, The cutting and spraying structure (7) comprises an upper slide plate (71), a pair of roller conveying mechanisms (72) above the upper slide plate (71), a cutting knife (73) on the upper slide plate (71) and capable of moving leftward and rightward, a spraying head following the movement of the cutting knife (73), and a paper pressing mechanism (74) on the lower part of the upper slide plate (71) and capable of moving upward and downward; the pair of roller conveying mechanisms (72) are arranged along the leftward and rightward direction and located behind the paper unwinding structure; the upper slide plate (71) is arranged obliquely downward from front to back, and the inclination angle is greater than that of the lower slide plate (61); the upper end of the upper slide plate (71) is located adjacent below the pair of roller conveying mechanisms (72), and the lower end is located above the bandage wrapping structure (8); a knife groove matched with the cutting knife (73) is arranged on the upper slide plate (71) along the leftward and rightward direction; the paper pressing mechanism (74) comprises a pressing rod arranged along the leftward and rightward direction, a driving assembly driving the pressing rod to move upward and downward, and a plurality of pressing discs arranged side by side on the lower side of the pressing rod; the pressing rod is capable of moving upward and downward in a direction perpendicular to the upper slide plate (61); the pressing discs are parallel to the upper slide plate (71); when the cutting knife (73) cuts the paper (3), the pressing disc presses the upper side of the paper (3) when the paper pressing mechanism (74) moves downward; after the cutting is completed, the paper pressing mechanism (74) rises, and the cut paper (3) falls to the bandage wrapping structure (8).

8. The apparatus of claim 1, wherein, The bandage wrapping structure (8) comprises a blocking rod, two wrapping rollers (81) arranged side by side in front and back, a paper pressing roller above the two wrapping rollers (81) and capable of moving upward and downward, and a wrapping driving assembly driving the two wrapping rollers (81) to move toward each other and away from each other; when the two wrapping rollers (81) are in the state of being away from each other, the bandage strip (4) on the two wrapping rollers (81) falls downward from the gap between the two wrapping rollers (81); The wrapping roller (81), the paper pressing roller, and the blocking rod are all arranged along the leftward and rightward direction; the rear wrapping roller (81) is arranged on the rack (1), and the front wrapping roller (81) is capable of moving forward and backward; the blocking rod is located adjacent above the rear wrapping roller (81). The paper wrapping driving assembly comprises a driving motor, two horizontal sliding rails (82), two inclined sliding rails (83), two synchronous chains (84), two horizontal sliding seats (85), two inclined sliding seats (86), two synchronous chain wheels (87), two first air cylinders (88) and two second air cylinders (89); the two horizontal sliding rails (82) are arranged side by side on the left and right sides of the rack (1) and are arranged in the front-rear direction, and are located in front of the left and right ends of the rear paper wrapping roller (81); the two horizontal sliding seats (85) are slidably arranged on the two horizontal sliding rails (82), and the left and right ends of the front paper wrapping roller (81) are arranged on the two horizontal sliding seats (85); the two inclined sliding rails (83) are arranged side by side on the left and right sides of the rack (1) and are located below the front paper wrapping roller (81) and are arranged obliquely upwards and rearwards; the two inclined sliding seats (86) are slidably arranged on the two inclined sliding rails (83), and the two synchronous chain wheels (87) are arranged on the two inclined sliding seats (86); the left and right ends of the two paper wrapping rollers (81) are provided with chain wheels, and the two synchronous chains (84) are arranged at the left and right ends of the paper wrapping rollers (81), and the synchronous chains (84) are wound around the chain wheels and the synchronous chain wheels (87) at the corresponding ends and form a triangular shape; the two first air cylinders (88) are synchronously driven and are used for driving the two horizontal sliding seats (85) to move forward and backward, and the first air cylinders (88) are arranged obliquely forwards on the corresponding sides of the rack (1) from bottom to top; the two second air cylinders (89) are synchronously driven and are used for driving the two inclined sliding seats (86) to move upwards and downwards, and the second air cylinders (89) are arranged obliquely rearwards from bottom to top; when the two paper wrapping rollers (81) move away from each other, the horizontal sliding seats (85) move forwards, and the inclined sliding seats (86) move upwards.

9. The apparatus of claim 1, wherein, The material collecting groove (9) is arranged obliquely downwards from back to front, and the rear part is located directly below the bandage paper wrapping structure (8); the rack (1) is provided with a sliding groove for the material collecting groove (9) to slide out rearwards; the sliding groove is arranged on the left and right sides of the material collecting groove (9); the rack (1) or the sliding groove is provided with a locking structure for locking the material collecting groove (9); when the discharge groove is installed, the front part of the discharge groove is fixed on the rack (1) or the sliding groove by the locking structure.

10. Method for the production of a bandage with an automated production device according to any one of claims 1 to 9, characterized in that The method comprises: When the non-paper-wrapped bandage strip is prepared, the paper unwinding structure, the paper cutting and glue spraying structure (7), the bandage cutting structure (11) and the bandage strip lifting structure (12) are not worked, the material collecting groove (9) is installed, and the transfer structure (10) is removed; When the paper-wrapped bandage strip is prepared, the paper unwinding structure and the paper cutting and glue spraying structure (7) are worked, the bandage cutting structure (11) and the bandage strip lifting structure (12) are not worked, the material collecting groove (9) is installed, and the transfer structure (10) is removed; When the non-paper-wrapped bandage is prepared, the paper unwinding structure and the paper cutting and glue spraying structure (7) are not worked, the bandage cutting structure (11) and the bandage strip lifting structure (12) are worked, the material collecting groove (9) is removed, and the transfer structure (10) is installed; When the paper is used to make the bandage, the paper unwinding structure, the paper cutting and glue spraying structure (7), the bandage slitting structure (11) and the bandage strip lifting structure (12) work, the receiving groove (9) is removed, and the transferring structure (10) is installed.

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