Cutting equipment and cutting method for medical knee pad processing

Abstract

The present invention relates to the technical field of sports protective equipment, specifically to a cutting device for processing medical knee pads and a cutting method thereof, comprising a workbench wrapped with a conveyor belt, with drive rollers provided at both ends of the conveyor belt for providing power to the conveyor belt, and a cloth roller provided on the front side of the workbench; a cutting assembly provided on the workbench, the cutting assembly comprising a U-shaped frame fixed to the workbench, a hydraulic cylinder mounted on the U-shaped frame, and a pin fixed to the output end of the hydraulic cylinder. The present invention uses needles to pull the cloth to both sides along the cutout, and increases the pulling force on the cloth as the cutting progresses, so that the tearing and cutting are coordinated with each other. The cloth at the cutout is moistened by a water supply cylinder, reducing the impact of static electricity on the cutting process and preventing lint and fibers from causing harm to workers. The cutting and moistening of the cloth are coordinated and performed synchronously, which is conducive to improving work efficiency.

Description

Technical Field

[0001] The present invention relates to the field of sports protection equipment, in particular to a cutting device for processing medical knee pads and a cutting method thereof. Background Art

[0002] Medical knee braces have certain benefits for the knees, especially when there are injuries, inflammations or loose knee joints. During medical rehabilitation, wearing medical knee braces plays a key role in the recovery of the patient's legs. In the production and processing of medical knee braces, the knee brace fabric is cut manually or with cutting equipment, and then the edges are sewn.

[0003] In the prior art, for example, the national patent publication number CN114622398A discloses an automatic cutting and blanking device for processing knee pads, which stretches the fabric through a stretching roller and pushes a cutting knife close to the stretching roller through a roller to cut the fabric.

[0004] However, the above solution has a poor effect on cutting the fabric. Since the medical knee pad fabric is soft and elastic, the fabric is easily deformed when the cutting knife is cut parallel to the fabric, resulting in the fabric being unable to be cut. In addition, during the transmission of the fabric, its surface is easily rubbed and static electricity is generated. During the cutting process, not only will dust and fibers generated during the cutting process be attached to the fabric, but also static electricity will accumulate on the cutter due to the contact between the cutter and the fabric, which will affect the subsequent cutting work. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a cutting device for processing a medical knee pad and a cutting method thereof to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A cutting device for processing medical knee pads, comprising a workbench, a conveyor belt wrapped around the workbench, drive rollers for providing power to the conveyor belt provided at both ends of the conveyor belt, and a cloth roller provided at the front side of the workbench;

[0008] A cutting assembly is provided on the workbench, and the cutting assembly includes a U-shaped frame fixed on the workbench, a hydraulic cylinder is installed on the U-shaped frame, a pin is fixed to the output end of the hydraulic cylinder, and two cutting knives are symmetrically hinged on the workbench, and the two cutting knives are arranged perpendicular to the output direction of the conveyor belt. A sliding groove is opened in the two cutting knives along their length direction, and the pin is slidably arranged in the two sliding grooves. Both ends of the pin are hinged with a stretching plate, and the middle part of the stretching plate is connected to the pin through a spring.

[0009] Preferably, needles are arranged at equal intervals on the lower end of the stretching plate, and slots matching the needles are provided on the conveyor belt.

[0010] Preferably, a plurality of openings are equidistantly provided on the surface of the cutting knife, a water channel connected to the openings is provided in the cutting knife, a water delivery cylinder is fixed in the chute, a piston is sealingly and slidingly connected in the water delivery cylinder, a valve stem is fixed on the piston, the valve stem is rotatably connected to the pin shaft, a water tank is provided on the U-shaped frame, the water tank is connected to the input end of the water delivery cylinder through a connecting pipe, and the output end of the water delivery cylinder is connected to the openings through the water channel.

[0011] Preferably, a base is provided below the workbench, a support frame is fixed on the base, and the cloth roller, driving roller and workbench are all installed on the support frame.

[0012] Preferably, two hinged seats are symmetrically fixed on the upper surface of the workbench, and the ends of the two cutting knives that are away from each other are hinged to the workbench through the two hinged seats, so that the two cutting knives are in a scissor-fork structure.

[0013] Preferably, a conductive coil is embedded in the side wall of the slide, a permanent magnet is embedded in the pin shaft, the winding direction of the conductive coil is perpendicular to the direction of the magnetic flux lines of the permanent magnet, positive electrode plates and negative electrode plates are symmetrically fixed on the side walls on both sides of the slide, the two ends of the conductive coil are electrically connected to the positive electrode plate and the negative electrode plate respectively, the positive electrode plate and the negative electrode plate are electrically connected to the cutting knife through the copper sheet, when the pin shaft drives the permanent magnet to slide in the slide, the conductive coil continuously cuts the magnetic flux lines of the permanent magnet to generate an induced current, thereby supplying power to the positive electrode plate and the negative electrode plate.

[0014] Preferably, a receiving slot is provided on the base, and the receiving slot is located directly below the output end of the conveyor belt.

[0015] Preferably, two guide rollers are also installed on the support frame.

[0016] A cutting method for a cutting device used for processing a medical knee pad comprises the following steps:

[0017] S1: The medical knee pad fabric to be cut is pulled out from the fabric roller, passed between two guide rollers, and then laid flat on the conveyor belt. The conveyor belt is started to pull the fabric forward. When the cutting position of the fabric is directly below the cutting blade, the conveyor belt stops.

[0018] S2, start the hydraulic cylinder to drive the pin shaft to move downward, so that the needles at the lower ends of the two stretching plates penetrate into the fabric to position the fabric. After the needles penetrate into the fabric, the pin shaft drives the two cutting knives to feed from the edges of the fabric to the middle synchronously to cut the fabric. During the cutting process, the lower ends of the two stretching plates move away from each other, and the fabric is pulled to both sides along the cutting edge by the needles, so that the tearing and cutting are coordinated with each other, making the fabric cut more neat;

[0019] S3, after the cutting is completed, the hydraulic cylinder drives the pin shaft to move upward and reset until the needle is separated from the fabric. At this time, the conveyor belt is started again to transport the next section of fabric to the bottom of the cutting knife for continuous cutting. The fabric that has been cut in the previous section is transported by the conveyor belt and falls into the receiving trough below for collection.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention drives the pin shaft downward through the hydraulic cylinder, so that the needles at the lower ends of the two stretching plates penetrate into the cloth to position the cloth. After the needles penetrate into the cloth, the pin shaft drives the two cutting knives to feed from the edges of the cloth on both sides to the middle to cut the cloth. During the cutting process, the lower ends of the two stretching plates move away from each other, and the cloth is pulled to both sides along the cut through the needles. The pulling force on the cloth increases with the progress of cutting, so that the tearing and cutting are coordinated with each other, making the cloth cut more neat.

[0022] 2. The present invention provides a water delivery cylinder, uses a pin as a driving force, drives the piston to move back and forth in the water delivery cylinder, and continuously pumps water to the water channel in the cutting knife. The water flows out from the openings on the surface of the cutting knife to the blade, moistening the cloth at the cutting point. On the one hand, the cloth is moistened and shaped, which is convenient for cutting. On the other hand, it can reduce the impact of static electricity on the cutting work. On the other hand, it prevents the lint and fibers generated during the cutting process from floating in the air, reducing the harm to the workers. In addition, there is no need to set up an additional power drive device or water spraying equipment, so that the cutting and moistening of the cloth are coordinated and carried out synchronously, which is conducive to improving work efficiency.

[0023] 3. The present invention sets a conductive coil, a permanent magnet block, a positive electrode plate and a negative electrode plate. When the pin shaft drives the permanent magnet block to slide in the slide groove, the conductive coil continuously cuts the magnetic flux lines of the permanent magnet block to generate an induced current, which supplies power to the positive electrode plate and the negative electrode plate. The positive electrode plate and the negative electrode plate are similar to the battery structure. According to the principle of battery elimination of static electricity, the static electricity on the surface of the cutting knife can be eliminated, further eliminating the influence of static electricity on the cutting work, without the need for external power supply, reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of a cutting device for processing medical knee pads provided by the present invention;

[0025] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0026] Figure 3 This is a schematic structural diagram of a cutting assembly in a cutting device for processing a medical knee pad provided by the present invention;

[0027] Figure 4 This is a schematic structural diagram of a cutting knife in a cutting device for processing a medical knee pad provided by the present invention;

[0028] Figure 5 This is a perspective diagram of the partial structure of a cutting knife in a cutting device for processing a medical knee pad provided by the present invention;

[0029] Figure 6 The present invention provides a flow chart of a cutting method for a cutting device used for processing medical knee pads.

[0030] In the figure: 1 workbench, 2 conveyor belt, 3 drive roller, 4 feeding roller, 5 U-shaped frame, 6 hydraulic cylinder, 7 pin shaft, 8 cutting knife, 9 slide, 10 stretching plate, 11 spring, 12 needle, 13 opening, 14 water delivery cylinder, 15 piston, 16 valve stem, 17 water tank, 18 base, 19 support frame, 20 hinge seat, 21 conductive coil, 22 permanent magnet block, 23 positive electrode plate, 24 negative electrode plate, 25 copper sheet, 26 receiving slot, 27 guide roller. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] See also Figures 1 to 5 The present invention provides a cutting device for processing medical knee pads, and the technical solution is as follows:

[0033] A cutting device for processing medical knee pads, comprising a workbench 1, a conveyor belt 2 wrapped around the workbench 1, drive rollers 3 for providing power to the conveyor belt 2 are provided at both ends of the conveyor belt 2, and a cloth roller 4 is provided on the front side of the workbench 1;

[0034] A cutting assembly is provided on the workbench 1, which includes a U-shaped frame 5 fixed on the workbench 1, a hydraulic cylinder 6 installed on the U-shaped frame 5, and a pin shaft 7 fixed to the output end of the hydraulic cylinder 6. Two cutting knives 8 are symmetrically hinged on the workbench 1, and the two cutting knives 8 are arranged perpendicular to the output direction of the conveyor belt 2. Both cutting knives 8 are provided with a slide groove 9 along their length direction, and the pin shaft 7 is slidably set in the two slide grooves 9. Both ends of the pin shaft 7 are hinged with a stretching plate 10, and the middle part of the stretching plate 10 is connected to the pin shaft 7 through a spring 11. When the spring 11 is in a natural state, the two stretching plates 10 are arranged in an "eight" shape, so that after the lower ends of the two stretching plates 10 come into contact with the cloth, they slide away from each other.

[0035] The lower end of the stretching plate 10 is evenly spaced with needles 12 , and the conveyor belt 2 is provided with slots matching the needles 12 to prevent the needles 12 from damaging the conveyor belt 2 .

[0036] During operation, the hydraulic cylinder 6 drives the pin 7 to move downward, so that the needles 12 at the lower ends of the two stretching plates 10 penetrate into the cloth to position the cloth. After the needles 12 penetrate into the cloth, the pin 7 drives the two cutting knives 8 to feed synchronously from the edges of the two sides of the cloth to the middle to cut the cloth. At this time, the pin 7 will slide in the slide 9. During the cutting process, the lower ends of the two stretching plates move away from each other, and the cloth is pulled to both sides along the cut through the needles 12, and the pulling force on the cloth increases with the progress of cutting, so that the tearing and cutting cooperate with each other to make the cloth cut more neat.

[0037] The surface of the cutting knife 8 is provided with a number of openings 13 at equal intervals. A water channel communicating with the opening 13 is provided in the cutting knife 8. A water delivery cylinder 14 is fixed in the chute 9. The water delivery cylinder 14 is sealed and slidably connected with a piston 15. A valve stem 16 is fixed to the piston 15. The valve stem 16 is rotatably connected to the pin 7. A water tank 17 is provided on the U-shaped frame 5. The water tank 17 is connected to the input end of the water delivery cylinder 14 through a connecting pipe, and the output end of the water delivery cylinder 14 is connected to the opening 13 through a water channel.

[0038] During operation, the pin is used as the driving force to drive the piston 15 to move back and forth in the water supply cylinder 14, continuously pumping water to the water channel in the cutting knife 8, and the water flows out from the opening 13 on the surface of the cutting knife 8 to the blade, wetting the cloth at the cutting point. On the one hand, the cloth is wetted and shaped, which is convenient for cutting. On the other hand, it can reduce the impact of static electricity on the cutting work, and on the other hand, it can prevent the lint and fibers generated during the cutting process from floating in the air, reducing the harm to the staff. In addition, there is no need to set up additional power drive devices or water spraying equipment, so that the cutting and wetting of the cloth are coordinated and carried out synchronously, which is conducive to improving work efficiency.

[0039] A base 18 is provided below the workbench 1 , a support frame 19 is fixed on the base 18 , and the cloth roller 4 , the driving roller 3 and the workbench 1 are all mounted on the support frame 19 .

[0040] Two hinged seats 20 are symmetrically fixed to the upper surface of the workbench 1. The ends of the two cutting knives 8 that are away from each other are hinged to the workbench 1 through the two hinged seats 20, so that the two cutting knives 8 are in a scissor-fork structure.

[0041] A conductive coil 21 is embedded in the side wall of the chute 9, and a permanent magnet block 22 is embedded in the pin shaft 7. The winding direction of the conductive coil 21 is perpendicular to the direction of the magnetic flux lines of the permanent magnet block 22. Positive electrode plates 23 and negative electrode plates 24 are symmetrically fixed on the side walls on both sides of the chute 9. The two ends of the conductive coil 21 are electrically connected to the positive electrode plate 23 and the negative electrode plate 24 respectively. The positive electrode plate 23 and the negative electrode plate 24 are both fixed to the cutting knife 8 through copper sheets 25. When the pin shaft 7 drives the permanent magnet block 22 to slide in the chute 9, the conductive coil 21 continuously cuts the magnetic flux lines of the permanent magnet block 22 to generate an induced current, which supplies power to the positive electrode plate 23 and the negative electrode plate 24. The positive electrode plate 23 and the negative electrode plate 24 are similar to the battery structure. According to the principle of battery static elimination, the static electricity on the surface of the cutting knife can be eliminated, further eliminating the influence of static electricity on the cutting work. No external power supply is required, reducing costs.

[0042] A receiving slot 26 is provided on the base 18 . The receiving slot 26 is located directly below the output end of the conveyor belt 2 . The receiving slot 26 is used to receive the cut cloth.

[0043] Two guide rollers 27 are also mounted on the support frame 19 , and the guide rollers 27 serve to guide the cloth during transportation.

[0044] See also Figure 6 A cutting method for a cutting device used in processing medical knee pads, comprising the following steps:

[0045] S1: The medical knee pad fabric to be cut is pulled out from the fabric roller 4, passes between the two guide rollers 27, and is laid flat on the conveyor belt 2. The conveyor belt 2 is started to pull the fabric forward. When the cutting position of the fabric is directly below the cutting blade 8, the conveyor belt 2 stops running.

[0046] S2, start the hydraulic cylinder 6 to drive the pin 7 to move downward, so that the needles 12 at the lower ends of the two stretching plates 10 penetrate into the cloth to position the cloth. After the needles 12 penetrate into the cloth, the pin 7 drives the two cutting knives 8 to feed from the edges of the cloth to the middle synchronously to cut the cloth. During the cutting process, the lower ends of the two stretching plates 10 move away from each other, and the cloth is pulled to both sides along the cutting edge by the needles 12, so that the tearing and cutting are coordinated with each other, making the cloth cut more neat;

[0047] S3, after the cutting is completed, the hydraulic cylinder 6 drives the pin 7 to move upward and reset until the needle 12 is separated from the cloth. At this time, the conveyor belt 2 is started again to transport the next section of cloth to the bottom of the cutting knife 8 for continuous cutting. The cloth that has been cut in the previous section is transported by the conveyor belt 2 and falls into the receiving groove 26 below for collection.

[0048] It will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cutting device for processing medical knee pads, comprising a workbench (1), characterized in that: The workbench (1) is wrapped with a conveyor belt (2), and drive rollers (3) for providing power to the conveyor belt (2) are provided at both ends of the conveyor belt (2), and a cloth roller (4) is provided on the front side of the workbench (1); The workbench (1) is provided with a cutting assembly, which includes a U-shaped frame (5) fixed on the workbench (1), a hydraulic cylinder (6) installed on the U-shaped frame (5), a pin shaft (7) fixed to the output end of the hydraulic cylinder (6), two cutting knives (8) symmetrically hinged on the workbench (1), the two cutting knives (8) are arranged perpendicular to the output direction of the conveyor belt (2), and a slide groove (9) is provided in the two cutting knives (8) along the length direction thereof, and the pin shaft (7) is slidably arranged in the two slide grooves (9), and both ends of the pin shaft (7) are hinged with a stretching plate (10), and the middle part of the stretching plate (10) is connected to the pin shaft (7) through a spring (11); The lower end of the stretching plate (10) is provided with needles (12) arranged at equal intervals, and the conveyor belt (2) is provided with slots matching the needles (12); The surface of the cutting knife (8) is provided with a plurality of openings (13) at equal intervals. A water channel connected to the opening (13) is provided in the cutting knife (8). A water delivery cylinder (14) is fixed in the chute (9). A piston (15) is sealingly and slidably connected in the water delivery cylinder (14). A valve stem (16) is fixed on the piston (15). The valve stem (16) is rotatably connected to the pin (7). A water tank (17) is provided on the U-shaped frame (5). The water tank (17) is connected to the input end of the water delivery cylinder (14) through a connecting pipe. The output end of the water delivery cylinder (14) is connected to the opening (13) through the water channel. A conductive coil (21) is embedded on the side wall of the chute (9), and a permanent magnet (22) is embedded in the pin shaft (7). The winding direction of the conductive coil (21) is perpendicular to the direction of the magnetic flux lines of the permanent magnet (22). A positive electrode plate (23) and a negative electrode plate (24) are symmetrically fixed on the side walls on both sides of the chute (9). The two ends of the conductive coil (21) are electrically connected to the positive electrode plate (23) and the negative electrode plate (24) respectively. The positive electrode plate (23) and the negative electrode plate (24) are fixed to the cutting knife (8) through a copper sheet (25). When the pin shaft (7) drives the permanent magnet (22) to slide in the chute (9), the conductive coil (21) continuously cuts the magnetic flux lines of the permanent magnet (22) to generate an induced current, thereby supplying power to the positive electrode plate (23) and the negative electrode plate (24). A base (18) is provided below the workbench (1), and a receiving slot (26) is provided on the base (18), and the receiving slot (26) is located directly below the output end of the conveyor belt (2); Two hinged seats (20) are symmetrically fixed on the upper surface of the workbench (1), and the ends of the two cutting knives (8) that are away from each other are hinged to the workbench (1) through the two hinged seats (20), so that the two cutting knives (8) are in a scissor-type structure.

2. The cutting device for processing a medical knee pad according to claim 1, characterized in that: A support frame (19) is fixed on the base (18), and the cloth roller (4), the driving roller (3) and the workbench (1) are all mounted on the support frame (19).

3. The cutting device for processing a medical knee pad according to claim 2, characterized in that: Two guide rollers (27) are also mounted on the support frame (19).

4. A cutting method applied to the cutting device for processing medical knee pads according to claim 3, characterized in that: The following steps are involved: S1, the medical knee pad fabric to be cut is pulled out from the fabric roller (4), passed between two guide rollers (27), and then laid flat on the conveyor belt (2), and the conveyor belt (2) is started to pull the fabric forward. When the cutting position of the fabric is located directly below the cutting knife (8), the conveyor belt (2) stops running; S2, start the hydraulic cylinder (6) to drive the pin (7) to move downward, so that the needles (12) at the lower ends of the two stretching plates (10) penetrate into the fabric to position the fabric. After the needles (12) penetrate into the fabric, the pin (7) drives the two cutting knives (8) to feed from the edges of both sides of the fabric to the middle to cut the fabric. During the cutting process, the lower ends of the two stretching plates (10) move away from each other, and the fabric is pulled to both sides along the cutting edge by the needles (12), so that the tearing and cutting are coordinated with each other, making the fabric cut more neat. S3, after the cutting is completed, the hydraulic cylinder (6) drives the pin shaft (7) to move upward and reset until the needle (12) is separated from the cloth. At this time, the conveyor belt (2) is started again to transport the next section of cloth to the bottom of the cutting knife (8) for continuous cutting. The cloth that has been cut in the previous section is transported by the conveyor belt (2) and falls into the receiving groove (26) below for collection.

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