A biomedical experimental cutting device with automatic die changing capability

Abstract

This invention provides a biopharmaceutical experimental cutting device with automatic die-changing capability, comprising a base and a stamping base. A processing platform is located on the top of the base, and the stamping base is positioned above the processing platform. The rear end of the stamping base is lifted and lowered by a hydraulic cylinder. An opening for the die to pass through is provided at the bottom of the stamping base. The top front end of the stamping base is inclined, and a disassembly / assembly port for assembling and disassembling the die is provided on the inclined front end surface. A die-changing device is provided inside the stamping base, comprising an assembly cylinder, a translation component, and a tilting motor. The assembly cylinder is a horizontally arranged regular polygonal prism structure, and each plane of the side wall of the assembly cylinder is provided with an assembly seat for fixing the die. The die-changing device enables one-button die replacement, allowing different dies to rotate to the bottom opening for die-cutting operations. The translation component moves the assembly cylinder to the disassembly / assembly port, thus enabling die assembly and disassembly, significantly improving the automation level and die-cutting efficiency of the equipment.

Description

Technical Field

[0001] This invention belongs to the field of pharmaceutical processing equipment technology, specifically relating to a cutting device for biomedical experiments that can automatically change the die. Background Technology

[0002] Currently, in the preparation of hydrocolloid dressings, the product needs to be cut into thin films of a specified shape using a die-cutting machine. Different die-cutting blades of corresponding shapes are required to cut the product into the appropriate shapes for different experimental needs, necessitating the changing of different dies during cutting. Currently, some products have various shaped cutouts designed on their surface due to requirements. After the product is stamped and die-cut, scraps from these cutouts are left on the stamping platform, requiring timely manual removal to prevent residue from remaining underneath the product, which could cause unevenness during die-cutting and affect product quality.

[0003] Chinese patent document CN202011369862.3 discloses a precision stamping device for leather cutting. This application uses an adjusting screw, a lower limiting nut, and an upper limiting nut on the die-cutting tool. When the adjusting screw passes through the corresponding adjusting limiting hole in the connecting plate, the lower and upper limiting nuts rotate relative to each other, allowing the die-cutting tool to be adjusted up and down or the die to be replaced. However, this application only allows disassembling the die by rotating the adjusting screw, which cannot automate die replacement and requires frequent manual installation and disassembly, affecting die-cutting efficiency.

[0004] Chinese patent document CN202122206799.8 discloses a high-precision printed paperboard cutting device, including a die-cutting unit. A receiving base is fixedly installed at the bottom of the die-cutting unit. A conversion die-cutting platform adapted to the die-cutting unit is fixedly installed in the middle of the top surface of the receiving base. An electric-driven feeding unit is fixedly installed on the top surface of the receiving base, which is arranged parallel to the die-cutting unit. The electric feeding brush roller is used to clean the scraps generated by paperboard cutting instead of the manual lever. This cleaning structure is not suitable for cleaning die-cut scraps. Therefore, it is necessary to improve the existing equipment to address the problems. Summary of the Invention

[0005] To address the aforementioned problems, this invention discloses a cutting device for biomedical experiments that can automatically change the die. It automatically changes to the required die with one-button control and collects waste material through a liftable processing platform, thus solving the problems of complicated die-changing operations and the inability to clean up waste material in a timely manner in existing die-cutting machines.

[0006] The specific technical solution is as follows: A cutting device capable of automatically replacing cutting dies for biomedical tests, comprising a machine base and a stamping seat, wherein the top of the machine base is provided with a processing platform, a plurality of material leakage openings are uniformly formed in the center of the processing platform, a lifting device, a waste adsorption device and a waste collection bin are arranged inside the machine base, the lifting device is used for driving a plurality of lifting blocks matched with the material leakage openings in size and shape to lift and embed into the material leakage openings respectively, and when all the lifting blocks are embedded into the material leakage openings, the top of the processing platform presents a planar structure; the waste adsorption device is used for adsorbing waste on the lifting blocks and discharging the waste into the waste collection bin; the stamping seat is arranged above the processing platform, the rear end of the stamping seat is driven to lift by a hydraulic cylinder installed in the machine base, a through opening for a cutting die to pass through is formed at the bottom of the stamping seat, the top of the front end of the stamping seat is arranged as an inclined surface, an assembly and disassembly opening for assembling and disassembling the cutting die is formed on the inclined surface at the front end of the stamping seat, a cutting die replacement device is arranged in the stamping seat, the cutting die replacement device comprises an assembly cylinder, a translation assembly and a overturning motor, the assembly cylinder is a horizontally arranged regular polygonal prism structure, each plane on the side wall of the assembly cylinder is respectively provided with an assembly seat for fixing the cutting die, and one of the assembly seats on the assembly cylinder corresponds to the position of the assembly and disassembly opening; the overturning motor is used for driving the assembly cylinder to rotate and enabling different cutting dies on the assembly cylinder to respectively move to the position of the through opening to perform stamping and die-cutting operation; the translation assembly is used for driving the assembly cylinder to translate and enabling the assembly seat on the assembly cylinder to displace into the assembly and disassembly opening to realize assembly and disassembly of the cutting die.

[0007] Further, the translation assembly comprises sliding rails, movable seats, a connecting frame, a displacement motor, a screw rod and a partition plate, wherein the partition plate is longitudinally arranged in an inner cavity of the stamping seat and divides the inner cavity of the stamping seat into an equipment bin and a cutting die cavity; the number of the sliding rails is two groups distributed at two ends of the assembly cylinder, the number of sliding rails in each group is two and respectively installed on inner walls of upper and lower ends of the cutting die cavity, the movable seats are transversely slidably arranged between each group of sliding rails, the center of each movable seat is rotatably connected with a shaft end of the assembly cylinder through a bearing, the two movable seats are connected with each other through the connecting frame, the connecting frame is of a "匚"-shaped structure and is horizontally arranged, two ends of the connecting frame horizontally penetrate through the partition plate and are respectively connected with the two movable seats, the screw rod is horizontally arranged through the center of the connecting frame in a penetrating manner, the screw rod is in threaded connection with the connecting frame, two ends of the screw rod are respectively horizontally rotatably arranged at two ends of the equipment bin, one end of the screw rod is provided with a driven gear, the displacement motor is arranged in the equipment bin, an output shaft of the displacement motor is provided with a driving gear in meshing connection with the driven gear, so that the displacement motor drives the screw rod to rotate reciprocally and drives the assembly cylinder to translate in the cutting die cavity through cooperation of the connecting frame and the movable seats.

[0008] Further, the overturning motor is horizontally installed on one side of one of the movable seats through a motor base, an output shaft of the overturning motor is fixedly connected with one shaft end of the assembly cylinder, so that the overturning motor drives the assembly cylinder to rotate and replace different cutting dies.

[0009] Furthermore, the assembly base includes a base, a mounting bracket, and a pressure plate. The base has a rectangular mounting groove at its center. The two ends of the mounting groove are respectively provided with a mounting bracket for mounting the die-cutting mold and a pressure plate for pressing the die-cutting mold. The two sides of the mounting bracket and the pressure plate at opposite ends are rotatably connected to the two sides of the mounting groove by pins. Torsion springs for rotating the mounting bracket and the pressure plate upward are respectively sleeved on the pins. The mounting bracket has a U-shaped structure and has a receiving groove for embedding the die-cutting mold on its inner side. The base has mounting cavities at both ends of the mounting groove. Positioning components for positioning the mounting bracket and the pressure plate are provided in both mounting cavities, so that the mounting bracket and the pressure plate are fixed in the mounting groove.

[0010] Furthermore, the positioning assembly includes a pressing rod, a telescopic rod, a spring, and a transmission gear. The pressing rod is horizontally inserted through the mounting cavity on the side away from the mounting groove, with one end extending laterally into the mounting cavity, and both sides of the pressing rod are laterally arranged with first toothed blocks. Two telescopic rods are horizontally inserted through the mounting cavity on the side near the mounting groove, with one end of each telescopic rod extending into the mounting groove and fitted with a spring. Each end of the telescopic rod has an insert block for positioning the spring. The top of each insert block is inclined, and both the card holder and the pressure plate have slots on one side that mate with the insert blocks, allowing the insert blocks to... The spring supports the insertion into the slot and limits the position of the card seat and pressure plate. The other end of the telescopic rod is provided with a limiting plate, which abuts against the inner wall of the mounting cavity under the action of the spring. The two telescopic rods are arranged laterally on the adjacent side of the other end. The two telescopic rods are distributed on both sides of the pressing rod, and a transmission gear is provided between the telescopic rod and the pressing rod. The transmission gear is rotatably set in the mounting cavity. Each transmission gear is meshed with the first and second tooth blocks on both sides. By pressing the pressing rod, the telescopic rod is moved laterally under the action of the transmission gear, so that the insert block retracts from the slot, thereby no longer limiting the position of the card seat and pressure plate.

[0011] Furthermore, a sealing groove is provided at the bottom of the processing platform outside the material leakage port. The top of the inner sidewall of the sealing groove is inclined. The lifting device is provided below the sealing groove. The lifting device includes a drive cylinder and a sealing seat. The drive cylinder is longitudinally arranged in the inner cavity of the machine base. The sealing seat is horizontally arranged on the piston rod of the drive cylinder. The size and shape of the sealing seat are adapted to the size and shape of the sealing groove. Several lifting blocks are arranged on the top of the sealing seat. The position of the lifting blocks corresponds one-to-one with the position of the material leakage port. The drive cylinder drives the sealing seat to rise and fall, so that the lifting blocks are engaged or disengaged from the material leakage port.

[0012] Furthermore, the machine base cavity is provided with a cleaning chamber and an installation chamber at its upper and lower ends, respectively, and a waste collection chamber is provided on one side of the installation chamber. A hopper is inclinedly provided at the top of the waste collection chamber. The waste adsorption device includes an adsorption plate, a fan, a rotary motor, a rotating seat, a rotating shaft, and a scraper. The scraper is located at the top of the cleaning chamber and above the waste collection chamber. The rotating seat is longitudinally arranged in the cleaning chamber and located on one side of the hopper. The rotating shaft is rotatably arranged in the rotating seat. The rotating shaft is driven to rotate by a rotary motor installed in the installation chamber. A connecting seat is horizontally connected to the top of the rotating shaft, and one end of the connecting seat is connected to the adsorption plate. Both the adsorption plate and the connecting seat have air ducts in their inner cavities and are interconnected. The exhaust fan is installed in the installation chamber, and the air inlet of the exhaust fan is connected to the air duct of the connecting seat through a pipe. The upper and lower surfaces of the adsorption plate are provided with adsorption holes corresponding to the air ducts. The adsorption plate is rotated horizontally by a rotating shaft driven by a rotary motor and moved to the top of the waste collection bin or the sealing seat. This allows the adsorption plate to adsorb waste on the lifting block and the leakage hole through the adsorption holes. When the adsorption plate moves to the top of the waste collection bin, the top of the adsorption plate cooperates with the scraper, causing the scraper to scrape the waste on the top of the adsorption plate into the waste collection bin.

[0013] Furthermore, several of the lifting blocks are arranged in a matrix on the sealing plate. Each lifting block has a cuboid structure, and the top edges of the lifting blocks are chamfered and adapted to the size and shape of the material discharge port.

[0014] Furthermore, it also includes a control device, which includes a PLC controller, control handles, and control buttons. The control handles and control buttons are both located at the top front end of the stamping base. There are two control handles, each located at one end of the stamping base. Each control handle has a button for controlling the raising and lowering of the stamping base for stamping and die cutting. There are several control buttons, which are used to control the translation component and the tilting motor to drive the assembly cylinder to realize the replacement and disassembly of the die. The PLC controller is located at the front end of the inner cavity of the stamping base and is electrically connected to the control handles, control buttons, hydraulic cylinder, translation component, tilting motor, lifting device, and waste adsorption device.

[0015] The beneficial effects of this invention are reflected in: The die-cutting device of this invention uses a die-changing device in the stamping seat to realize fully automatic die changing. The die can be changed with one click through the control button, so that different dies can be rotated to the bottom opening for die cutting. In conjunction with the translation component, the assembly cylinder is moved to the disassembly port, so that the die can be disassembled and assembled. The operation is simple and convenient, which greatly improves the automation level and die-cutting efficiency of the equipment.

[0016] The die-cutting position on the processing platform of this invention adopts a material leakage hole structure design, and the material leakage hole is filled by a lifting block to meet the planar structure. After die-cutting, the lifting block descends and allows the waste material punched out to fall onto the lifting block through the material leakage hole. Then, the adsorption plate rotates above the lifting block and adsorbs the waste material on the lifting block and the waste material remaining on the material leakage hole. As the adsorption plate resets, the waste material automatically falls into the waste collection tank, thereby completing the timely cleaning and collection of waste material, avoiding the impact of waste material on product die-cutting, and improving the die-cutting quality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention.

[0018] Figure 2 This is the front view of the present invention.

[0019] Figure 3 This is a longitudinal sectional view of the die cavity in this invention.

[0020] Figure 4 This is a schematic diagram of the assembly base in this invention.

[0021] Figure 5 This is a longitudinal sectional view of the mounting base in this invention.

[0022] Figure 6 This is a top view of the processing platform in this invention.

[0023] Figure 7 This is a top view of the cleaning chamber in this invention. Machine base 1, cleaning chamber 101, installation chamber 102, waste collection chamber 103, hopper 104, hydraulic cylinder 11; 2. Stamping base, 201. Through port, 202. Disassembly port, 203. Equipment compartment, 204. Die cavity, 205. Tilting motor; Processing platform 3, material outlet 31, sealing groove 32; Translation component 4, slide rail 41, movable seat 42, connecting frame 43, displacement motor 44, driving gear 441, lead screw 45, driven gear 451, partition plate 46; Assembly tube 5; Assembly base 6, base 61, mounting groove 611, card holder 62, receiving groove 621, slot 622, pressure plate 63, pin 631, torsion spring 632, pressing rod 64, first tooth block 641, telescopic rod 65, second tooth block 651, limiting plate 652, spring 66, transmission gear 67, insert block 68, mounting cavity 69; Waste adsorption device 7, adsorption plate 71, adsorption hole 711, exhaust fan 72, rotary motor 73, rotating seat 74, rotating shaft 75, scraper 76, connecting seat 77; Lifting device 8, drive cylinder 81, sealing seat 82, lifting block 83; PLC controller 91, control handle 92, button 921, control key 93. Detailed Implementation

[0024] To make the technical solution of this invention clearer and more explicit, the invention will be further described below with reference to the accompanying drawings. Any solution derived by equivalent substitution and conventional reasoning of the technical features of this invention falls within the protection scope of this invention. The fixed connections and fixed installations mentioned in this invention are all common connection methods in the mechanical field, including welding, bolt and nut connections, and screw connections.

[0025] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0026] like Figure 1-7 As shown, this embodiment provides a biomedical experimental cutting device with an automatically replaceable die, including a base 1 and a stamping base 2. The top of the base 1 is provided with a processing platform 3, and the center of the processing platform 3 is uniformly provided with a plurality of rectangular material outlets 31, which are arranged in a matrix. The base 1 is provided with a lifting device 8, a waste adsorption device 7, and a waste collection bin 103. The lifting device 8 is used to drive a plurality of lifting blocks 83 that are adapted to the size and shape of the material outlets 31 to move up and down and be embedded in the material outlets 31 respectively. When all the lifting blocks 83 are embedded in the material outlets 31, the top of the processing platform 3 is flat, so that the processing platform 3 can perform die cutting and punching operations normally. The waste adsorption device 7 is used to adsorb the waste on the lifting blocks 83 and discharge it into the waste collection bin 103.

[0027] A stamping base 2 is installed above the processing platform 3. The rear end of the stamping base 2 is driven to lift by a hydraulic cylinder installed in the base 1. The bottom of the stamping base 2 has an opening 201 for the die to pass through. The top of the front end of the stamping base 2 is set with an inclined surface, and a disassembly and assembly port 202 for disassembling and assembling the die is opened on the inclined surface of the front end of the stamping base 2. A die replacement device is installed inside the stamping base 2. The die replacement device includes an assembly cylinder 5, a translation component 4 and a flipping motor 205. The assembly cylinder 5 is a horizontally set regular hexagonal prism structure. Each plane of the side wall of the assembly cylinder 5 is provided with an assembly seat 6 for fixing the die. The inclination angle of the surface of the assembly cylinder 5 near the disassembly and assembly port 202 is adapted to the inclination angle of the inclined surface of the front end of the stamping base 2, so as to facilitate the movement of the assembly seat 6 on the plane into the disassembly and assembly port 202. The flip motor 205 is used to drive the assembly cylinder 5 to rotate and cause different cutting dies on the assembly cylinder 5 to move to the through-hole 201 position respectively, so as to facilitate the stamping and die cutting operation; the translation component 4 is used to drive the assembly cylinder 5 to translate and cause the assembly seat 6 on the assembly cylinder 5 to move to the disassembly and assembly port 202 to realize the disassembly and assembly of the cutting dies.

[0028] The translation component 4 includes a slide rail 41, a movable seat 42, a connecting frame 43, a displacement motor 44, a lead screw 45, and a partition 46. The partition 46 is longitudinally arranged in the inner cavity of the stamping seat 2 and divides the inner cavity of the stamping seat 2 to form an equipment compartment 203 and a die cavity 204. There are two sets of slide rails 41 distributed at both ends of the assembly cylinder 5. Each set of slide rails 41 consists of two slide rails, which are respectively installed on the inner walls of the upper and lower ends of the die cavity 204. A movable seat 42 is slidably provided between each set of slide rails 41. The center of each movable seat 42 is rotatably connected to the shaft end of the assembly cylinder 5 through a bearing. The two movable seats 42 are connected by the connecting frame 43. The connecting frame 43 has a "U" shape and is horizontally arranged. The two ends of the connecting frame 43 are horizontal. A horizontal through-plate 46 is connected to two movable seats 42 respectively. The connecting frame 43 is horizontally through-mounted with a lead screw 45, and the lead screw 45 is threadedly connected to the connecting frame 43. The two ends of the lead screw 45 are horizontally rotatably mounted at both ends of the equipment compartment 203. One end of the lead screw 45 is provided with a driven gear 451. The displacement motor 44 is located in the equipment compartment 203. The output shaft of the displacement motor 44 is provided with a driving gear 441 that meshes with the driven gear 451, so that the displacement motor 44 drives the lead screw 45 to reciprocate and rotate. Through the cooperation of the connecting frame 43 and the movable seats 42, the assembly cylinder 5 is moved horizontally in the die cavity 204, thereby moving the assembly seat 6 on the assembly cylinder 5 to the disassembly port 202 for the disassembly and replacement of the die.

[0029] One of the movable seats 42 has a horizontally mounted flip motor 205 on one side via a motor mount. The output shaft of the flip motor 205 is fixedly connected to one end of the assembly cylinder 5, so that the flip motor 205 drives the assembly cylinder 5 to rotate and change different cutting dies.

[0030] The mounting base 6 includes a base 61, a mounting bracket 62, and a pressure plate 63. The base 61 has a rectangular mounting groove 611 in the center. The mounting groove 611 has a mounting bracket 62 for mounting the die and a pressure plate 63 for pressing the die at both ends. The two sides of the mounting bracket 62 and the pressure plate 63 at opposite ends are rotatably connected to the two sides of the mounting groove 611 by a pin 631. The pin 631 is fitted with a torsion spring 632 for rotating the mounting bracket 62 and the pressure plate 63 upward. The mounting bracket 62 has a U-shaped structure and a receiving groove 621 for embedding the die is opened on the inner side of the mounting bracket 62. The receiving groove 621 positions three sides of the die, and then the pressure plate 63 presses down on the other side to fix the die. The base 61 has mounting cavities 69 at both ends of the mounting groove 611. Each mounting cavity 69 is provided with a positioning component for positioning the card holder 62 and the pressure plate 63, so that the card holder 62 and the pressure plate 63 are fixed in the mounting groove 611.

[0031] The positioning assembly includes a pressing rod 64, a telescopic rod 65, a spring 66, and a transmission gear 67. The pressing rod 64 is horizontally inserted through the mounting cavity 69 on the side away from the mounting groove 611, with one end extending laterally into the mounting cavity. Both sides of the pressing rod 64 are laterally arranged with first tooth blocks 641. Two telescopic rods 65 are horizontally inserted through the mounting cavity on the side near the mounting groove 611. One end of each telescopic rod 65 extends into the mounting groove 611 and is fitted with a spring 66. One end of each telescopic rod 65 is provided with a spring for engaging the spring. The insert block 68 is positioned by 66. The top of the insert block 68 is set with an inclined surface. The card seat 62 and the pressure plate 63 are provided with a slot 622 on one side to cooperate with the insert block 68. The bottom of both sides of the card seat 62 and the pressure plate 63 are also provided with inclined surfaces to cooperate with the inclined surface of the top of the insert block 68. When the card seat 62 and the pressure plate 63 are pressed down, the insert block 68 can be moved backward under the action of the inclined surface. Then, under the support of the spring 66, the insert block 68 is reset and embedded into the slot 622, thereby limiting the card seat 62 and the pressure plate 63. The other end of the telescopic rod 65 is provided with a limiting plate 652 for limiting the displacement of the telescopic rod 65. The limiting plate abuts against the inner wall of the mounting cavity under the action of the spring 66. The two telescopic rods 65 are arranged laterally on the adjacent side of the other end of the two telescopic rods 65. The two telescopic rods 65 are distributed on both sides of the pressing rod 64, and a transmission gear 67 is provided between the telescopic rod 65 and the pressing rod 64. The transmission gear 67 is rotatably set in the mounting cavity. The two sides of each transmission gear 67 are respectively meshed with the first tooth block 641 and the second tooth block 651. By pressing the pressing rod 64, the telescopic rod 65 is moved laterally under the action of the transmission gear 67, so that the insert block 68 retracts from the slot, thereby no longer limiting the card seat 62 and the pressure plate 63. Then, the card seat 62 and the pressure plate 63 move upward along the pin shaft 631 under the action of the torsion spring 632. At this time, the die in the card seat 62 extends upward out of the disassembly port 202 for easy replacement.

[0032] The bottom of the processing platform 3 is provided with a sealing groove 32 outside the material leakage port 31. The top of the inner side wall of the sealing groove 32 is inclined. The lifting device 8 is provided below the sealing groove 32. The lifting device 8 includes a drive cylinder 81 and a sealing seat 82. The drive cylinder 81 is longitudinally arranged in the inner cavity of the machine base 1. The sealing seat 82 is horizontally arranged on the piston rod of the drive cylinder 81. The size and shape of the sealing seat 82 are adapted to the size and shape of the sealing groove 32. Several lifting blocks 83 are arranged on the top of the sealing seat 82. The position of the lifting blocks 83 corresponds one-to-one with the position of the material leakage port 31. The drive cylinder 81 drives the sealing seat 82 to rise and fall, so that the lifting blocks 83 can be engaged or disengaged from the material leakage port.

[0033] The base 1 has a cleaning chamber 101 and an installation chamber 102 at its upper and lower ends, respectively. A waste collection chamber 103 is provided on one side of the installation chamber 102. A hopper 104 is inclined at the top of the waste collection chamber 103, and an openable discharge door is provided on one side of the waste collection chamber 103. The waste adsorption device 7 includes an adsorption plate 71, a fan 72, a rotary motor 73, a rotating seat 74, a rotating shaft 75, and a scraper 76. The scraper 76 is located at the top of the cleaning chamber and above the waste collection chamber 103. The rotating seat is longitudinally arranged in the cleaning chamber and located on one side of the hopper 104. The rotating shaft 75 is rotatably arranged in the rotating seat. The rotating shaft is driven to rotate by the rotary motor 73 installed in the installation chamber 102. A connecting seat 77 is horizontally connected to the top of the rotating shaft 75. One end of the connecting seat 77 is connected to the adsorption plate 71. The inner cavities of the adsorption plate 71 and the connecting seat 77 are provided with air ducts (not shown in the figure) and are interconnected. The exhaust fan 72 is installed in the installation chamber 102. The air inlet of the exhaust fan 72 is connected to the air duct of the connecting seat 77 through a pipe. The upper and lower surfaces of the adsorption plate 71 are provided with adsorption holes 711 corresponding to the air duct. The adsorption plate 71 is rotated horizontally by the rotating shaft 75 by the rotating motor 73 and moved to the top of the waste collection chamber 103 or the sealing seat 82. The adsorption plate 71 adsorbs the waste on the lifting block 83 and the leakage hole through the adsorption holes 711. When the adsorption plate 71 is moved to the top of the waste collection chamber 103, the exhaust fan 72 stops working. Then, the top of the adsorption plate 71 cooperates with the scraper 76 so that the scraper 76 can scrape the waste on the top of the adsorption plate 71 into the waste collection chamber 103.

[0034] Several lifting blocks 83 are arranged in a matrix on the sealing plate. Each lifting block 83 has a cuboid structure. The top edges of the lifting blocks 83 are chamfered and adapted to the size and shape of the material discharge port 31.

[0035] In this embodiment, to achieve automated operation, the cutting device also includes a control device, which includes a PLC controller 91, control handles 92, and control buttons 93. Both control handles 92 and control buttons 93 are located at the top front end of the stamping base 2. There are two control handles 92, each located at one end of the stamping base 2. Each control handle 92 has a button 921 for controlling the raising and lowering of the stamping base 2 for stamping and die cutting. By simultaneously pressing the buttons on both handles, the stamping base 2 is lowered to perform the stamping operation. There are several control buttons 93, which are used to control the translation component 4 and the tilting motor 205 to drive the assembly cylinder 5, enabling the replacement and disassembly of the die. The PLC controller 91 is located at the front end of the inner cavity of the stamping base 2. The PLC controller 91 is electrically connected to the control handles 92, control buttons 93, hydraulic cylinder, translation component 4, tilting motor 205, lifting device 8, and waste material adsorption device 7, thereby enabling automatic die replacement and waste material cleaning operations through the PLC controller 91.

[0036] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A biomedical experimental cutting device with an automatically changeable die, comprising a base (1) and a stamping base (2), characterized in that, The machine base (1) is provided with a processing platform (3) on top. The processing platform (3) has several material outlets (31) evenly distributed in the center. The machine base (1) is provided with a lifting device (8), a waste adsorption device (7), and a waste collection bin (103). The lifting device (8) is used to drive several lifting blocks (83) that are adapted to the size and shape of the material outlets (31) to lift and embed into the material outlets (31) respectively. When all the lifting blocks (83) are embedded into the material outlets (31), the top of the processing platform (3) is flat. The waste adsorption device (7) is used to adsorb the waste on the lifting blocks (83) and discharge it into the waste collection bin (103). The stamping seat (2) is provided above the processing platform (3). The rear end of the stamping seat (2) is driven to lift by a hydraulic cylinder installed in the machine base (1). The bottom of the stamping seat (2) is provided with a through-hole (201) for the die to pass through. The front end is set with an inclined surface, and the front inclined surface of the stamping base (2) is provided with a disassembly and assembly port (202) for disassembling and assembling the die. The die replacement device is provided inside the stamping base (2). The die replacement device includes an assembly cylinder (5), a translation component (4) and a flipping motor (205). The assembly cylinder (5) is a horizontally set regular polygonal prism structure. Each plane of the side wall of the assembly cylinder (5) is provided with an assembly seat (6) for fixing the die. One of the assembly seats (6) on the assembly cylinder (5) corresponds to the position of the disassembly and assembly port (202). The flipping motor (205) is used to drive the assembly cylinder (5) to rotate and make different dies on the assembly cylinder (5) move to the through port (201) for stamping and die cutting. The translation component (4) is used to drive the assembly cylinder (5) to translate and make the assembly seat (6) on the assembly cylinder (5) move to the disassembly and assembly port (202) to realize the disassembly and assembly of the die. Said translation assembly (4) comprises a sliding rail (41), a movable seat (42), a connecting frame (43), a displacement motor (44), a screw rod (45) and a partition plate (46), wherein the partition plate (46) is longitudinally arranged in an inner cavity of the stamping seat (2) and divides the inner cavity of the stamping seat (2) into an equipment compartment (203) and a die cavity (204); the sliding rails (41) are arranged in two groups and distributed at two ends of the assembling cylinder (5), each group of sliding rails (41) comprises two sliding rails which are respectively mounted on inner walls of upper and lower ends of the die cavity (204), the movable seat (42) is transversely slidably arranged between each group of sliding rails (41), centers of the movable seats (42) are rotatably connected with shaft ends of the assembling cylinder (5) through bearings, the two movable seats (42) are connected with each other through the connecting frame (43), the connecting frame (43) is of a "匚"-shaped structure and horizontally arranged, two ends of the connecting frame (43) horizontally penetrate through the partition plate (46) and are respectively connected with the two movable seats (42), the screw rod (45) is horizontally arranged through a center of the connecting frame (43) in a penetrating manner, the screw rod (45) is in threaded connection with the connecting frame (43), two ends of the screw rod (45) are respectively horizontally and rotatably arranged at two ends of the equipment compartment (203), one end of the screw rod (45) is provided with a driven gear (451), the displacement motor (44) is arranged in the equipment compartment (203), an output shaft of the displacement motor (44) is provided with a driving gear (441) in meshing connection with the driven gear (451), so that the displacement motor (44) drives the screw rod (45) to rotate reciprocally and cooperates with the movable seat (42) through the connecting frame (43) to drive the assembling cylinder (5) to translate in the die cavity (204); Said assembling seat (6) comprises a base (61), a clamping seat (62) and a pressing plate (63), a rectangular mounting groove (611) is formed in a center of the base (61), two ends of the mounting groove (611) are respectively provided with the clamping seat (62) for sleeving a die and the pressing plate (63) for pressing the die, sides of ends, away from each other, of the clamping seat (62) and the pressing plate (63) are rotatably connected with two sides of the mounting groove (611) through pin shafts (631) respectively, torsion springs (632) for rotating the clamping seat (62) and the pressing plate (63) upwards are respectively sleeved on the pin shafts (631), the clamping seat (62) is of a U-shaped structure, an accommodating groove (621) for embedding the die is formed in an inner side of the clamping seat (62), mounting cavities are formed in two ends of the mounting groove (611) inside the base (61), positioning assemblies for positioning the clamping seat (62) and the pressing plate (63) are arranged in the two mounting cavities respectively, so that the clamping seat (62) and the pressing plate (63) are fixed in the mounting groove (611); The positioning assembly includes a pressing rod (64), a telescopic rod (65), a spring (66), and a transmission gear (67). The pressing rod (64) is horizontally inserted through the mounting cavity on the side away from the mounting groove (611). One end of the pressing rod (64) extends laterally into the mounting cavity, and both sides of the pressing rod (64) are laterally arranged with first tooth blocks (641). There are two telescopic rods (65) which are horizontally inserted through the mounting cavity on the side near the mounting groove (611). One end of each telescopic rod (65) extends into the mounting groove (611) and is fitted with a spring (66). One end of each telescopic rod (65) is provided with an insert (68) for positioning the spring (66). The top of each insert (68) is inclined, and one side of the card holder (62) and the pressure plate (63) is provided with a slot that mates with the insert (68), so that the insert (68) is positioned in the spring. (66) The support is embedded into the slot and limits the card seat (62) and pressure plate (63); the other end of the telescopic rod (65) is provided with a limiting plate, which abuts against the inner wall of the mounting cavity under the action of the spring (66). The two telescopic rods (65) are arranged laterally on the adjacent side of the other end of the two telescopic rods (65). The two telescopic rods (65) are distributed on both sides of the pressing rod (64), and a transmission gear (67) is provided between the telescopic rod (65) and the pressing rod (64). The transmission gear (67) is rotatably set in the mounting cavity. Each transmission gear (67) is meshed with the first tooth block (641) and the second tooth block (651) on both sides respectively. By pressing the pressing rod (64), the telescopic rod (65) is driven to move laterally under the action of the transmission gear (67), so that the insert block (68) retracts from the slot, thereby no longer limiting the card seat (62) and pressure plate (63).

2. The biomedical experimental cutting device with an automatically changeable die as described in claim 1, characterized in that, One of the movable seats (42) is horizontally mounted on one side via a motor seat. The output shaft of the rotating motor (205) is fixedly connected to one end of the assembly cylinder (5), so that the rotating motor (205) drives the assembly cylinder (5) to rotate and change different die-cutting molds.

3. The biomedical experimental cutting device with an automatically changeable die as described in claim 1, characterized in that, The bottom of the processing platform (3) is provided with a sealing groove (32) outside the material outlet (31). The top of the inner side wall of the sealing groove (32) is inclined. The lifting device (8) is provided below the sealing groove (32). The lifting device (8) includes a drive cylinder (81) and a sealing seat (82). The drive cylinder (81) is longitudinally arranged in the inner cavity of the machine base (1). The sealing seat (82) is horizontally arranged on the piston rod of the drive cylinder (81). The size and shape of the sealing seat (82) are adapted to the size and shape of the sealing groove (32). Several lifting blocks (83) are arranged on the top of the sealing seat (82). The position of the lifting block (83) corresponds to the position of the material outlet (31). The drive cylinder (81) drives the sealing seat (82) to rise and fall, so that the lifting block (83) can be engaged or separated from the material outlet.

4. The biomedical experimental cutting device with an automatically changeable die as described in claim 3, characterized in that, The machine base (1) has a cleaning chamber (101) and an installation chamber (102) at its upper and lower ends respectively. The waste collection chamber (103) is located on one side of the installation chamber (102), and a hopper (104) is inclined at the top of the waste collection chamber (103). The waste adsorption device (7) includes an adsorption plate (71), a blower (72), a rotary motor (73), a rotating seat (74), a rotating shaft (75), and a scraper (76). The scraper (76) is located at the top of the cleaning chamber (101) and above the waste collection chamber (103). The rotating seat (74) is longitudinally arranged in the cleaning chamber (101) and located on one side of the hopper (104). The rotating shaft (75) is rotatably arranged in the rotating seat. The rotating shaft (75) is driven to rotate by the rotary motor (73) installed in the installation chamber (102). A connecting seat (77) is horizontally connected to the top of the rotating shaft (75). One end of the connecting seat (77) is connected to the... The adsorption plate (71) and the connecting seat (77) are both equipped with air ducts and are interconnected. The exhaust fan (72) is installed in the installation chamber (102). The air inlet of the exhaust fan (72) is connected to the air duct of the connecting seat (77) through a pipe. The upper and lower surfaces of the adsorption plate (71) are equipped with adsorption holes (711) corresponding to the air ducts. The adsorption plate (71) is driven by a rotating motor (73) using a rotating shaft (75) to move water from the adsorption plate (71). The plate rotates and moves to the top of the waste collection bin (103) or the sealing seat (82), so that the adsorption plate (71) adsorbs the waste on the lifting block (83) and the leakage hole through the adsorption hole (711). When the adsorption plate (71) moves to the top of the waste collection bin (103), the top of the adsorption plate (71) cooperates with the scraper (76) and the scraper (76) scrapes the waste on the top of the adsorption plate (71) into the waste collection bin (103).

5. A biomedical experimental cutting device with an automatically changeable die as described in claim 3, characterized in that, Several lifting blocks (83) are arranged in a matrix on the sealing plate. Each lifting block (83) has a cuboid structure. The top edges of the lifting blocks (83) are chamfered and adapted to the size and shape of the material outlet (31).

6. The biomedical experimental cutting device with an automatically changeable die as described in claim 1, characterized in that, It also includes a control device, which includes a PLC controller (91), a control handle (92), and control buttons (93). The control handle (92) and control buttons (93) are both located at the top front end of the stamping base (2). There are two control handles (92) and they are respectively located at both ends of the stamping base (2). Each of the two control handles (92) is equipped with a button (921) and is used to control the stamping base (2) to lift and lower for stamping and die cutting. There are several control buttons (93) and they are respectively used to control the translation component (4) and the flip motor (205) to drive the assembly cylinder (5) to realize the replacement and disassembly of the die. The PLC controller (91) is located at the front end of the inner cavity of the stamping base (2). The PLC controller (91) is electrically connected to the control handle (92), control buttons (93), hydraulic cylinder, translation component (4), flip motor (205), lifting device (8), and waste adsorption device (7).

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