Extrusion device and extrusion method for processing medical polymer materials

Abstract

The present invention relates to the technical field of extruder equipment, and discloses an extrusion device for processing medical polymer materials, including a main body, a feed port fixedly connected to the top of the main body, a motor fixedly connected to the back of the main body, an output end of the motor penetrates the inner wall of the main body and extends to the inside, a spiral rod is fixedly connected to the extension end of the motor output end, and a working box is bolted to the side of the main body away from the motor. When the connecting shaft of the present invention rotates, the material accumulated in the inner cylinder is stirred to mix the outside and inside of the material, so as to avoid the outer surface of the material from contacting the inner wall of the device for a long time when the material is accumulated in the inner cylinder, and the local high temperature caused by the long stay of the material at the mold outlet can be reduced, thereby reducing the discoloration and yellowing of the material and improving the molding quality after extrusion.

Description

Technical Field

[0001] The invention relates to the technical field of extruder equipment, in particular to an extrusion device and an extrusion method for processing medical polymer materials. Background Art

[0002] Extruder is a type of plastic machinery, which originated in the 18th century. According to the direction of the material flow in the die and the angle between the center line of the screw, the die head of the extruder can be divided into right-angle die head and bevel die head. The screw extruder relies on the pressure and shear force generated by the rotation of the screw to fully plasticize and evenly mix the material, and then form it through the die;

[0003] Generally, the extruder relies on the rotation of the screw rod to extrude the molten material. Since the extrusion port of the device is small, when the material flows out of the extrusion port due to the extrusion of the screw rod, most of the molten material will accumulate at the outlet of the device. Currently, the existing devices basically rely on adjusting the speed of the screw rod to slow down. However, since the size of the device outlet remains unchanged during the extrusion process, even if the speed of the screw rod is adjusted, the material is still very easy to accumulate at the outlet of the device and stay in the device for a long time. It is easy to cause local high temperature of the outermost material due to the long residence time, causing the extruded material to discolor and yellow, affecting the subsequent molding quality. Summary of the invention

[0004] The object of the present invention is to provide an extrusion device and an extrusion method for processing medical polymer materials to solve the problems raised in the above background technology.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is an extrusion device for processing medical polymer materials, comprising a main body, a feed port is fixedly connected to the top of the main body, a motor is fixedly connected to the back of the main body, an output end of the motor penetrates the inner wall of the main body and extends to the inside, a spiral rod is fixedly connected to the extension end of the motor output end, a working box is bolted to one side of the main body away from the motor, and further comprises;

[0007] The transmission mechanism includes a connecting shaft bolted to the side of the spiral rod away from the main body, the outer surface of the connecting shaft is slidably connected to a sliding disk, and the side of the sliding disk away from the spiral rod is rotatably connected to a plurality of connecting plates;

[0008] The stirring mechanism comprises a fixed ring fixedly connected to the outer surface of the connecting shaft, a side of the fixed ring close to the sliding disk is fixedly connected with a plurality of elastic tubes, and a side of the plurality of elastic tubes away from the fixed ring is fixedly connected with the sliding disk.

[0009] Furthermore, a plurality of connecting plates are arranged in a circular array with the connecting shaft as the center, a curved plate is rotatably connected to the side of the connecting plate away from the sliding disk, a plurality of curved plates are rotatably connected to the side of the conical cylinder away from the connecting plate, the side wall of the conical cylinder is rotatably connected to the side wall of the inner cylinder, and the outer surface of the conical cylinder is fixedly connected with teeth.

[0010] Furthermore, the inner wall of the working box is open, a partition is fixedly connected to the bottom of the working box, an inner tube is fixedly connected to the opening of the working box, an air inlet pipe is arranged on the side of the partition close to the main body, the air inlet pipe is fixedly connected to the outer wall of the working box, and an air outlet pipe is arranged on the side of the partition away from the main body, the air outlet pipe is fixedly connected to the outer wall of the working box.

[0011] Furthermore, a pull plate is fixedly connected to the middle of the elastic tube, and a fixing ring 2 is provided at one end of several pull plates away from the elastic tube. The fixing ring 2 is fixedly connected to the inner wall of the inner tube, and a wave groove is provided on the side of the fixing ring 2 close to the pull plate. The end of the pull plate away from the elastic tube is slidably connected to the inside of the wave groove.

[0012] Furthermore, a vibration mechanism is provided inside the working box, and the vibration mechanism includes a plurality of gear shafts rotatably connected to the side of the partition close to the main body, the outer surface of the gear shaft is meshed with the teeth on the outer surface of the conical cylinder, the side of the gear shaft away from the main body penetrates through the side wall of the partition and extends to the interior of the working box, and the outer surface of the extended end of the gear shaft is rotatably connected to a square frame.

[0013] Furthermore, the square frame is fixedly connected to the side wall of the partition, the extended end of the gear shaft is rotatably connected to the connecting rod, the outer surface of the connecting rod is slidably connected to the bidirectional tooth plate, the bidirectional tooth plate is rotatably connected to the inside of the square frame, the front and back sides of the bidirectional tooth plate are meshed and connected with racks, the racks are slidably connected to the side wall of the square frame, the right side of the bidirectional tooth plate is fixedly connected to a fixed disk, an elliptical groove is provided on the side of the fixed disk close to the connecting rod, and the gear shaft and the connecting rod are eccentrically arranged.

[0014] Furthermore, an auxiliary mechanism is provided inside the working box, and the auxiliary mechanism includes a connecting plate 2 that is slidably connected to the inside of the elliptical groove, an end of the connecting plate 2 that is away from the fixed disk is rotatably connected to an elastic plate, the side of the elastic plate close to the fixed disk is rotatably connected to the inside of the square frame, a sliding groove is provided on the side of the elastic plate away from the fixed disk, a T-shaped plate is slidably connected to the inside of the sliding groove, and two limit frames are slidably connected to the outer surface of the T-shaped plate, a spring plate is fixedly connected to the side of the two limit frames away from the bidirectional tooth plate, two spring rods are fixedly connected to the side of the spring plate close to the limit frame, and the spring rod is fixedly connected to the rack on the side away from the spring plate.

[0015] Furthermore, a cooling mechanism is provided inside the working box, and the cooling mechanism includes a plurality of hollow cylinders rotatably connected to the side wall of the partition, the side of the hollow cylinder away from the main body penetrates the side wall of the partition and extends to the outside, and the outer surface of the hollow cylinder is fixedly connected with tooth 2.

[0016] Furthermore, the hollow cylinder is meshed with teeth on the outer surface of the conical cylinder, and the outer surface of the extended end of the hollow cylinder is rotatably connected with a C-shaped plate, and the C-shaped plate is fixedly connected to the side wall of the partition, and the side of the hollow cylinder away from the main body is fixedly connected with an insertion rod, and the inside of the C-shaped plate is slidably connected with a sliding sleeve, and a two-way thread groove is provided inside the sliding sleeve, and the insertion rod is slidably connected inside the two-way thread groove, and the side of the sliding sleeve away from the hollow cylinder is rotatably connected with a jet disk, and the inside of the jet disk is fixedly connected with a cyclone plate.

[0017] Furthermore, a method for using an extrusion device for processing medical polymer materials, an extrusion device for processing medical polymer materials, the method comprising the following steps:

[0018] S1: First, connect the main body with the fixing device, then connect the air inlet of the air pump with the air inlet pipe, and connect the air outlet pipe with the air outlet pipe, then connect the heating device with the main body, start the motor and place the material to be extruded into the feed port;

[0019] S2: When the motor rotates, it drives the screw rod to rotate. When the screw rod rotates, the material inside the feed port is transported forward. During the transportation process, the heating device melts the transported material.

[0020] S3: At this time, the melted material will be squeezed by the rotation of the screw rod and extruded through the front end of the working box. Then, the extruded material is pulled by the traction device to complete the extrusion work.

[0021] The present invention has the following beneficial effects:

[0022] 1. In the present invention, when the rotation of the screw rod drives the melted material to be transported, the melted material first accumulates back inside the inner cylinder, and then when the screw rod rotates, the rotating screw rod drives the connecting shaft to rotate, and the connecting shaft drives the sliding disk and the fixing ring to rotate when the screw rod rotates. When the sliding disk and the fixing ring rotate, the elastic tube and the pull plate are driven to rotate, and when the pull plate rotates, it slides inside the wave groove in the fixing ring 2, and when the pull plate slides to the peak of the wave groove, the pull plate pulls the elastic tube to deform the elastic tube, and the deformed elastic tube has a convexity in the middle part. When the elastic tube is deformed, the deformed pull plate rotates with the rotation of the connecting shaft, and when the connecting shaft rotates, the accumulated material in the inner cylinder is stirred, so that the outside and the inside of the material are mixed, so as to avoid that when the material is accumulated in the inner cylinder, the outer surface of the material is in contact with the inner wall of the device for a long time, and the local high temperature caused by the long stay of the material at the mold outlet can be reduced, thereby reducing the discoloration and yellowing of the material and improving the molding quality after extrusion.

[0023] 2. According to the present invention, when the elastic tube is deformed, the sliding plate will be pulled to slide. When the sliding plate slides, the curved plate will be pulled through the connecting plate, so that the curved plate rotates inside the conical tube. When the pulling plate slides to the concave part of the wave groove, the pulling plate will push the elastic tube to reset the elastic tube. When the elastic tube is reset, the sliding plate will be pushed to reset. When the sliding plate is reset, it will push the curved plate through the connecting plate, so that the curved plate rotates inside the conical tube and fits the inner wall of the conical tube at the same time. Then, when the connecting shaft is affected by the spiral rod to rotate, the rotating connecting shaft will drive the sliding plate to rotate. When the sliding plate rotates, it will drive the curved plate and the conical tube to rotate. When the curved plate and the conical tube rotate, the rotation of the curved plate will guide the mixed material. At the same time, the rotation of the conical tube and the curved plate will accelerate the flow speed of the material when the material is extruded, reduce the residence time of the material in the device, reduce the disorder and deviation of the material in the mold, make the material more evenly distributed during extrusion, and at the same time, accelerate the extrusion speed of the material and improve the production efficiency.

[0024] When the two-way gear plate is rotated, the rotating two-way gear plate drives the racks on both sides to slide in the square frame. When the square frame slides, it pushes the spring plate, so that the spring plate fits the outer surface of the conical cylinder. At the same time, when the two-way gear plate rotates, the rotating two-way gear plate drives the fixed disk to rotate synchronously. When the two-way gear plate rotates, it drives the connecting plate 2 to slide through the elliptical groove. When the connecting plate 2 slides, it pulls the elastic plate, so that the elastic plate rotates on the inner wall of the square frame with the middle part of the elastic plate as the center. Since the elastic plate has elasticity, when the connecting plate When the second plate pulls the elastic plate to rotate, the rotating elastic plate will drive the T-plate to shake. At the same time, when the spring plate is fitted on the surface of the conical cylinder, since the surface of the conical cylinder is inclined, when the spring plate contacts the conical cylinder, the spring plate will tilt. At this time, the inclined spring plate will drive the T-plate to slide in the slide groove of the side wall of the elastic plate to the front end of the elastic plate. When the gear shaft shakes, the shaking elastic plate will drive the T-plate to move back and forth inside the limit frame. When the T-plate moves, it will knock the side wall of the spring plate, so that the vibration force is transmitted to the surface of the conical cylinder through the spring plate. At this time, when the spring plate is fitted on the surface of the conical cylinder, the stability of the conical cylinder during rotation can be enhanced. When the T-plate knocks the spring plate, the vibration force generated by the knocking will make the melted material inside the conical cylinder reduce the bubbles generated by the stirring of the elastic tube inside the material through vibration, so that the bubbles are more easily dispersed and released to the surface or edge of the material, which is helpful to discharge the gas from the melted material, reduce the bubbles in the extrudate, and improve the overall quality of the product.

[0025] 4. In the present invention, when the rotation of the connecting shaft drives the conical cylinder to rotate through the curved plate, the rotating conical cylinder will drive the hollow cylinder to rotate. When the hollow cylinder rotates, it will slide in the bidirectional threaded groove inside the sliding sleeve through the insertion rod. The sliding of the insertion rod can make the sliding sleeve slide back and forth inside the C-shaped plate. When the sliding sleeve slides, it will drive the jet disk to slide. Then, when the cold gas generated by the cold air pump enters the working box, the gas will enter into multiple hollow cylinders respectively, and then enter into the jet disk through the hollow cylinder. When the airflow hits the cyclone plate inside the jet disk, the jet disk will rotate, and when the jet disk rotates, the gas will be ejected through the outer surface of the jet disk. Through the rotating and jetting jet disk, a cold air layer is formed on the surface of the conical cylinder, which can effectively cover the entire surface of the rotating cylinder, achieve uniform cooling, reduce the situation where the local temperature of the material inside the conical cylinder is too high or too low during the rotation of the conical cylinder, maintain the stability and consistency of the material, and improve product quality.

[0026] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention;

[0030] Figure 3 It is a partial schematic diagram of the main body of the present invention;

[0031] Figure 4 It is a schematic diagram of the transmission mechanism structure of the present invention;

[0032] Figure 5 It is a schematic diagram of the back structure of the transmission mechanism of the present invention;

[0033] Figure 6 It is a schematic diagram of the structure of the vibration mechanism of the present invention;

[0034] Figure 7 for Figure 6 Enlarged view of point A in the middle;

[0035] Figure 8 It is a schematic diagram of the auxiliary mechanism structure of the present invention;

[0036] Fig. 9 It is a schematic diagram of the cooling mechanism structure of the present invention;

[0037] Fig.10 The figure is a flow chart of the extrusion method of the present invention.

[0038] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0039] In the figure: 1. main body; 101. feeding port; 102. motor; 103. screw rod; 104. working box; 105. air inlet pipe; 106. air outlet pipe; 107. inner cylinder; 108. partition plate; 2. transmission mechanism; 201. connecting shaft; 202. sliding plate; 203. connecting plate; 204. curved plate; 205. conical cylinder; 3. stirring mechanism; 301. fixing ring; 302. elastic tube; 303. pulling plate; 304. fixing Fixed ring 2; 4. Vibration mechanism; 401. Gear shaft; 402. Square frame; 403. Connecting rod; 404. Bidirectional tooth plate; 405. Rack; 406. Fixed plate; 5. Auxiliary mechanism; 501. Connecting plate 2; 502. Elastic plate; 503. T-plate; 504. Limiting frame; 505. Spring plate; 6. Cooling mechanism; 601. C-plate; 602. Hollow cylinder; 603. Inserting rod; 604. Sliding sleeve; 605. Jet disc. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figure 1-Figure 9 As shown, the present invention is an extrusion device for processing medical polymer materials, comprising a main body 1, a feed port 101 is fixedly connected to the top of the main body 1, a motor 102 is fixedly connected to the back of the main body 1, an output end of the motor 102 penetrates the inner wall of the main body 1 and extends to the inside, a spiral rod 103 is fixedly connected to the extension end of the output end of the motor 102, a working box 104 is bolted to the side of the main body 1 away from the motor 102, and further comprising;

[0042] The transmission mechanism 2 includes a connecting shaft 201 bolted to the side of the spiral rod 103 away from the main body 1, a sliding plate 202 is slidably connected to the outer surface of the connecting shaft 201, and a side of the sliding plate 202 away from the spiral rod 103 is rotatably connected to a plurality of connecting plates 203;

[0043] The stirring mechanism 3 includes a fixed ring 301 fixedly connected to the outer surface of the connecting shaft 201, a side of the fixed ring 301 close to the sliding disk 202 is fixedly connected to a plurality of elastic tubes 302, and a side of the plurality of elastic tubes 302 away from the fixed ring 301 is fixedly connected to the sliding disk 202. When the rotation of the screw rod 103 drives the melted material to be transported, the melted material will first accumulate inside the inner cylinder 107, and then when the screw rod 103 rotates, the rotating screw rod 103 will drive the connecting shaft 201 to rotate, and when the connecting shaft 201 rotates, it will drive the sliding disk 202 and the fixed ring 301 to rotate.

[0044] A plurality of connecting plates 203 are arranged in a circular array with the connecting shaft 201 as the center. The side of the connecting plate 203 away from the sliding disk 202 is rotatably connected to a curved plate 204. The side of the plurality of curved plates 204 away from the connecting plate 203 is rotatably connected to a conical cylinder 205. The side wall of the conical cylinder 205 is rotatably connected to the side wall of the inner cylinder 107. The outer surface of the conical cylinder 205 is fixedly connected with teeth. When the curved plate 204 and the conical cylinder 205 rotate, the rotation of the curved plate 204 guides the mixed material. At the same time, the rotation of the conical cylinder 205 and the curved plate 204 accelerates the flow rate of the material when the material is extruded.

[0045] The inner wall of the working box 104 is open, and a partition 108 is fixedly connected to the bottom of the working box 104. An inner cylinder 107 is fixedly connected to the opening of the working box 104. An air inlet pipe 105 is provided on the side of the partition 108 close to the main body 1, and the air inlet pipe 105 is fixedly connected to the outer wall of the working box 104. An air outlet pipe 106 is provided on the side of the partition 108 away from the main body 1, and the air outlet pipe 106 is fixedly connected to the outer wall of the working box 104. When the connecting shaft 201 rotates, the material accumulated in the inner cylinder 107 will be stirred to mix the outside and inside of the material to avoid the material accumulating in the inner cylinder 107.

[0046] A pull plate 303 is fixedly connected to the middle of the elastic tube 302, and a fixing ring 2 304 is set at one end of several pull plates 303 away from the elastic tube 302. The fixing ring 204 is fixedly connected to the inner wall of the inner tube 107, and a wave groove is provided on the side of the fixing ring 204 close to the pull plate 303. The end of the pull plate 303 away from the elastic tube 302 is slidably connected to the inside of the wave groove. When the elastic tube 302 is deformed, it will pull the sliding plate 202 to slide. When the sliding plate 202 slides, it will pull the curved plate 204 through the connecting plate 203 to make the curved plate 204 rotate inside the conical tube 205. When the pull plate 303 slides to the depression of the wave groove, the pull plate 303 will push the elastic tube 302 to reset the elastic tube 302.

[0047] A vibration mechanism 4 is provided inside the working box 104, and the vibration mechanism 4 includes a plurality of gear shafts 401 rotatably connected to the side of the partition 108 close to the main body 1, and the outer surface of the gear shaft 401 is meshed with the teeth on the outer surface of the conical cylinder 205. The side of the gear shaft 401 away from the main body 1 penetrates through the side wall of the partition 108 and extends to the inside of the working box 104. The outer surface of the extended end of the gear shaft 401 is rotatably connected with a square frame 402. When the rotation of the connecting shaft 201 drives the conical cylinder 205 to rotate through the sliding disk 202 and the curved plate 204, the rotating conical cylinder 205 will drive the gear shaft 401 to rotate through the teeth on the surface.

[0048] The square frame 402 is fixedly connected to the side wall of the partition 108, the extended end of the gear shaft 401 is rotatably connected to the connecting rod 403, the outer surface of the connecting rod 403 is slidably connected to the bidirectional tooth plate 404, the bidirectional tooth plate 404 is rotatably connected to the inside of the square frame 402, the front and back of the bidirectional tooth plate 404 are meshed and connected to the rack 405, the rack 405 is slidably connected to the side wall of the square frame 402, the right side of the bidirectional tooth plate 404 is fixedly connected to the fixed plate 406, the fixed plate 406 is provided with an elliptical groove on the side close to the connecting rod 403, the gear shaft 401 and the connecting rod 403 are eccentric It is arranged that when the gear shaft 401 is rotated by the rotation of the conical cylinder 205, the rotating conical cylinder 205 will drive the connecting rod 403 to slide back and forth, and when the connecting rod 403 slides, its bottom will slide in the two-way tooth plate 404, and when the connecting rod 403 slides in the two-way tooth plate 404, the sliding connecting rod 403 will push the two-way tooth plate 404, so that the two-way tooth plate 404 rotates with the middle part of the two-way tooth plate 404, and when the two-way tooth plate 404 is rotating, the rotating two-way tooth plate 404 will drive the racks 405 on both sides to slide in the square frame 402.

[0049] The interior of the working box 104 is provided with an auxiliary mechanism 5, which includes a connecting plate 501 slidably connected to the interior of the elliptical groove, an end of the connecting plate 501 away from the fixed disk 406 is rotatably connected to an elastic plate 502, and the side of the elastic plate 502 close to the fixed disk 406 is rotatably connected to the interior of the square frame 402, and a sliding groove is provided on the side of the elastic plate 502 away from the fixed disk 406, and a T-shaped plate 503 is slidably connected to the interior of the sliding groove, and the outer surface of the T-shaped plate 503 is slidably connected to two limit frames 504, and the two limit frames 504 are fixedly connected to a spring plate 505 on the side away from the bidirectional tooth plate 404, and the spring plate 505 is close to the limit frame 504. Two spring rods are fixedly connected to one side, and the side of the spring rod away from the spring plate 505 is fixedly connected to the rack 405. When the two-way tooth plate 404 rotates, the rotating two-way tooth plate 404 will drive the fixed plate 406 to rotate synchronously. When the two-way tooth plate 404 rotates, it will drive the connecting plate 2 501 to slide through the elliptical groove. When the connecting plate 2 501 slides, it will pull the elastic plate 502, so that the elastic plate 502 rotates on the inner wall of the square frame 402 with the middle of the elastic plate 502 as the center. Since the elastic plate 502 is elastic, when the connecting plate 2 501 pulls the elastic plate 502 to rotate, the rotating elastic plate 502 will drive the T-shaped plate 503 to shake.

[0050] A cooling mechanism 6 is provided inside the working box 104, and the cooling mechanism 6 includes a plurality of hollow cylinders 602 rotatably connected to the side wall of the partition 108. The side of the hollow cylinder 602 away from the main body 1 penetrates through the side wall of the partition 108 and extends to the outside. The outer surface of the hollow cylinder 602 is fixedly connected with a tooth 2. When the rotation of the connecting shaft 201 drives the conical cylinder 205 to rotate through the curved plate 204, the rotating conical cylinder 205 will drive the hollow cylinder 602 to rotate. When the hollow cylinder 602 rotates, it will slide in the bidirectional threaded groove inside the sliding sleeve 604 through the insertion rod. The sliding of the insertion rod 603 can make the sliding sleeve 604 slide back and forth inside the C-shaped plate 601.

[0051] The hollow cylinder 602 is meshed with the teeth on the outer surface of the conical cylinder 205, and the outer surface of the extended end of the hollow cylinder 602 is rotatably connected with a C-shaped plate 601, and the C-shaped plate 601 is fixedly connected to the side wall of the partition 108. The side of the hollow cylinder 602 away from the main body 1 is fixedly connected with a plug rod 603, and the inside of the C-shaped plate 601 is slidably connected with a sliding sleeve 604, and a bidirectional thread groove is provided inside the sliding sleeve 604. The plug rod 603 is slidably connected to the inside of the bidirectional thread groove, and the side of the sliding sleeve 604 away from the hollow cylinder 602 is rotatably connected with a spray The air disc 605, the interior of the jet disc 605 is fixedly connected with a cyclone plate, and when the sliding sleeve 604 slides, it will drive the jet disc 605 to slide. Then, when the cold gas generated by the cold air pump enters the working box 104, the gas will enter the multiple hollow cylinders 602 respectively, and then enter the jet disc 605 through the hollow cylinders 602. When the airflow hits the cyclone plate inside the jet disc 605, the jet disc 605 will rotate, and when the jet disc 605 rotates, the gas will be ejected through the outer surface of the jet disc 605.

[0052] A method for using an extrusion device for processing medical polymer materials, the extrusion device for processing medical polymer materials, the method comprising the following steps:

[0053] S1: First, connect the main body 1 with the fixing device, then connect the air inlet of the air pump with the air inlet pipe 105, and connect the air outlet pipe with the air outlet pipe 106, then connect the heating device with the main body 1, start the motor 102 and place the material to be extruded into the feed port 101;

[0054] S2: When the motor 102 rotates, it drives the screw rod 103 to rotate. When the screw rod 103 rotates, the material inside the feed port 101 is transported forward. During the transportation process, the heating device melts the transported material.

[0055] S3: At this time, the melted material will be squeezed by the rotation of the screw rod 103 and then extruded through the front end of the working box 104. Then, the extruded material is pulled by the pulling device to complete the extrusion work.

[0056] When in use, first connect the main body 1 with the fixing device, then connect the air inlet of the air pump with the air inlet pipe 105, and connect the air outlet pipe with the air outlet pipe 106, then connect the heating device with the main body 1, and start the motor 102 at the same time and place the material to be extruded into the feed port 101. When the motor 102 rotates, it will drive the screw rod 103 to rotate. When the screw rod 103 rotates, it will transport the material inside the feed port 101 forward. During the transportation process, the heating device will melt the transported material. At this time, the melted material will be squeezed by the rotation of the screw rod 103 and extruded through the front end of the working box 104. Then, the extruded material is towed by the traction device to complete the extrusion work. When the rotation of the screw rod 103 drives the melted material to be transported, the melted material will first accumulate inside the inner tube 107, and then when the screw rod 103 rotates, the rotating screw rod 103 will drive the connecting shaft 201 to rotate, and when the connecting shaft 201 rotates, it will drive the sliding disk 202 and the fixing ring 301 to rotate, and when the sliding disk 202 and the fixing ring 301 rotate, it will drive the elastic tube 302 and the pulling plate 303 to rotate, and when the pulling plate 303 rotates, it will slide inside the wave groove in the fixing ring 2 304, and when the pulling plate 303 slides to the peak of the wave groove, the pulling plate 303 will pull the elastic tube 302 causes the elastic tube 302 to be deformed, and the center of the deformed elastic tube 302 will bulge outward. When the elastic tube 302 is deformed, the deformed pull plate 303 will rotate with the rotation of the connecting shaft 201. When the connecting shaft 201 rotates, the material accumulated in the inner cylinder 107 will be stirred to mix the outside and the inside of the material, so as to avoid that when the material is accumulated in the inner cylinder 107, the outer surface of the material is in contact with the inner wall of the device for a long time, which can reduce the local high temperature caused by the long-term residence of the material at the mold outlet, thereby reducing the discoloration and yellowing of the material and improving the molding quality after extrusion.

[0057] When the elastic tube 302 is deformed, it will pull the sliding plate 202 to slide. When the sliding plate 202 slides, it will pull the curved plate 204 through the connecting plate 203, so that the curved plate 204 rotates inside the conical tube 205. When the pull plate 303 slides to the concave part of the wave groove, the pull plate 303 will push the elastic tube 302 to reset the elastic tube 302. When the elastic tube 302 is reset, it will push the sliding plate 202 to reset. When the sliding plate 202 is reset, it will push the curved plate 204 through the connecting plate 203, so that the curved plate 204 rotates inside the conical tube 205 and fits against the inner wall of the conical tube 205. Then, when the connecting shaft When 201 is affected by the screw rod 103 to rotate, the rotating connecting shaft 201 will drive the sliding disk 202 to rotate, and the sliding disk 202 will drive the curve plate 204 and the conical cylinder 205 to rotate. When the curve plate 204 and the conical cylinder 205 rotate, the rotation of the curve plate 204 will guide the mixed material. At the same time, the rotation of the conical cylinder 205 and the curve plate 204 will accelerate the flow speed of the material when the material is extruded, reduce the residence time of the material in the device, reduce the disorder and deviation of the material in the mold, make the material more evenly distributed during extrusion, and at the same time, speed up the extrusion speed of the material and improve the production efficiency.

[0058] When the rotation of the connecting shaft 201 drives the conical cylinder 205 to rotate through the sliding disk 202 and the curved plate 204, the rotating conical cylinder 205 drives the gear shaft 401 to rotate through the teeth on the surface. When the gear shaft 401 is rotated by the rotation of the conical cylinder 205, the rotating conical cylinder 205 drives the connecting rod 403 to slide back and forth. When the connecting rod 403 slides, its bottom slides in the two-way tooth plate 404. When the connecting rod 403 slides in the two-way tooth plate 404, the sliding connecting rod 403 pushes the two-way tooth plate 404, so that the two-way tooth plate 404 rotates about the middle part of the two-way tooth plate 404. When the tooth plate 404 rotates, the rotating two-way tooth plate 404 will drive the racks 405 on both sides to slide in the square frame 402. When the square frame 402 slides, it will push the spring plate 505, so that the spring plate 505 fits the outer surface of the conical cylinder 205. At the same time, when the two-way tooth plate 404 rotates, the rotating two-way tooth plate 404 will drive the fixed plate 406 to rotate synchronously. When the two-way tooth plate 404 rotates, it will drive the connecting plate 2 501 to slide through the elliptical groove. When the connecting plate 2 501 slides, it will pull the elastic plate 502, so that the elastic plate 502 rotates on the inner wall of the square frame 402 with the middle of the elastic plate 502 as the center. 2 is elastic. When the connecting plate 201 pulls the elastic plate 502 to rotate, the rotating elastic plate 502 will drive the T-shaped plate 503 to shake. At the same time, when the spring plate 505 is attached to the surface of the conical cylinder 205, since the surface of the conical cylinder 205 is inclined, when the spring plate 505 contacts the conical cylinder 205, the spring plate 505 will tilt. At this time, the inclined spring plate 505 will drive the T-shaped plate 503 to slide in the sliding groove of the side wall of the elastic plate 502 to the front end of the elastic plate 502. When the gear shaft 401 shakes, the shaking elastic plate 502 will drive the T-shaped plate 503 to move back and forth inside the limiting frame 504. The T-shaped When the plate 503 moves, it will knock on the side wall of the spring plate 505, so that the vibration force is transmitted to the surface of the conical cylinder 205 through the spring plate 505. At this time, when the spring plate 505 is in contact with the surface of the conical cylinder 205, the stability of the conical cylinder 205 during rotation can be enhanced. When the T-shaped plate 503 knocks on the spring plate 505, the vibration force generated by the knocking will cause the melted material inside the conical cylinder 205 to vibrate, reducing the bubbles generated by the stirring of the elastic tube 302 inside the material, making it easier to disperse and release the bubbles to the surface or edge of the material, which helps to discharge the gas from the melted material, reduce the bubbles in the extrudate, and improve the overall quality of the product.

[0059] When the rotation of the connecting shaft 201 drives the conical cylinder 205 to rotate through the curved plate 204, the rotating conical cylinder 205 will drive the hollow cylinder 602 to rotate. When the hollow cylinder 602 rotates, it will slide in the bidirectional thread groove inside the sliding sleeve 604 through the insertion rod. The sliding of the insertion rod 603 can make the sliding sleeve 604 slide back and forth inside the C-shaped plate 601. When the sliding sleeve 604 slides, it will drive the jet disk 605 to slide. Then, when the cold gas generated by the cold air pump enters the working box 104, the gas will enter the multiple hollow cylinders 602 respectively, and then pass through the air The core cylinder 602 enters the jet disk 605. When the airflow hits the cyclone plate inside the jet disk 605, the jet disk 605 rotates, and the gas is ejected through the outer surface of the jet disk 605 when the jet disk 605 rotates. Through the rotating and jetting jet disk 605, a cold air layer is formed on the surface of the conical cylinder 205, which can effectively cover the entire surface of the rotating cylinder, achieve uniform cooling, reduce the local temperature of the material inside the conical cylinder 205 during the rotation of the conical cylinder 205, maintain the stability and consistency of the material, and improve product quality.

[0060] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An extrusion device for processing medical polymer materials, comprising a main body (1), a feed port (101) being fixedly connected to the top of the main body (1), a motor (102) being fixedly connected to the back of the main body (1), an output end of the motor (102) penetrating the inner wall of the main body (1) and extending to the inside, a spiral rod (103) being fixedly connected to the extended end of the output end of the motor (102), a working box (104) being bolted to the side of the main body (1) away from the motor (102), characterized in that: Also includes; A transmission mechanism (2), the transmission mechanism (2) comprising a connecting shaft (201) bolted to a side of the spiral rod (103) away from the main body (1), a sliding plate (202) being slidably connected to an outer surface of the connecting shaft (201), and a side of the sliding plate (202) away from the spiral rod (103) being rotatably connected to a plurality of connecting plates (203); A stirring mechanism (3), the stirring mechanism (3) comprising a fixing ring (301) fixedly connected to the outer surface of the connecting shaft (201), a side of the fixing ring (301) close to the sliding plate (202) being fixedly connected to a plurality of elastic tubes (302), and a side of the plurality of elastic tubes (302) away from the fixing ring (301) being fixedly connected to the sliding plate (202); A plurality of the connecting plates (203) are arranged in a circular array with the connecting shaft (201) as the center; a side of the connecting plate (203) away from the sliding disk (202) is rotatably connected to a curved plate (204); a side of the plurality of the curved plates (204) away from the connecting plate (203) is rotatably connected to a conical cylinder (205); a side wall of the conical cylinder (205) is rotatably connected to a side wall of an inner cylinder (107); and teeth are fixedly connected to an outer surface of the conical cylinder (205); A partition plate (108) is fixedly connected to the bottom of the working box (104); A pull plate (303) is fixedly connected to the middle of the elastic tube (302), and a plurality of pull plates (303) are provided with a second fixing ring (304) at one end away from the elastic tube (302), and the second fixing ring (304) is fixedly connected to the inner wall of the inner tube (107); A vibration mechanism (4) is arranged inside the working box (104), and the vibration mechanism (4) comprises a plurality of gear shafts (401) rotatably connected to a side of the partition (108) close to the main body (1), the outer surface of the gear shaft (401) is meshingly connected with the teeth on the outer surface of the conical cylinder (205), the side of the gear shaft (401) away from the main body (1) penetrates the side wall of the partition (108) and extends to the inside of the working box (104), and the outer surface of the extended end of the gear shaft (401) is rotatably connected to a square frame (402).

2. The extrusion device for processing medical polymer materials according to claim 1, characterized in that: The inner wall of the working box (104) is open, and an inner cylinder (107) is fixedly connected to the opening of the working box (104). An air inlet pipe (105) is provided on a side of the partition (108) close to the main body (1), and the air inlet pipe (105) is fixedly connected to the outer wall of the working box (104). An air outlet pipe (106) is provided on a side of the partition (108) away from the main body (1), and the air outlet pipe (106) is fixedly connected to the outer wall of the working box (104).

3. The extrusion device for processing medical polymer materials according to claim 2, characterized in that: A wave groove is formed on one side of the second fixing ring (304) close to the pull plate (303), and one end of the pull plate (303) away from the elastic tube (302) is slidably connected to the inside of the wave groove.

4. The extrusion device for processing medical polymer materials according to claim 3, characterized in that: The square frame (402) is fixedly connected to the side wall of the partition (108); the extended end of the gear shaft (401) is rotatably connected to a connecting rod (403); the outer surface of the connecting rod (403) is slidably connected to a bidirectional tooth plate (404); the bidirectional tooth plate (404) is rotatably connected to the inside of the square frame (402); the front and back sides of the bidirectional tooth plate (404) are meshedly connected to a rack (405); the rack (405) is slidably connected to the side wall of the square frame (402); the right side of the bidirectional tooth plate (404) is fixedly connected to a fixed disk (406); an elliptical groove is provided on a side of the fixed disk (406) close to the connecting rod (403); the gear shaft (401) and the connecting rod (403) are eccentrically arranged.

5. The extrusion device for processing medical polymer materials according to claim 4, characterized in that: An auxiliary mechanism (5) is arranged inside the working box (104), and the auxiliary mechanism (5) comprises a second connecting plate (501) slidably connected inside the elliptical groove, an end of the second connecting plate (501) away from the fixed disk (406) is rotatably connected to an elastic plate (502), a side of the elastic plate (502) close to the fixed disk (406) is rotatably connected to the inside of the square frame (402), a sliding groove is provided on a side of the elastic plate (502) away from the fixed disk (406), a T-shaped plate (503) is slidably connected inside the sliding groove, and two limit frames (504) are slidably connected to the outer surface of the T-shaped plate (503), and a spring plate (505) is fixedly connected to the two limit frames (504) on the side away from the bidirectional tooth plate (404), and two spring rods are fixedly connected to the side of the spring plate (505) close to the limit frame (504), and a side of the spring rod away from the spring plate (505) is fixedly connected to the rack (405).

6. The extrusion device for processing medical polymer materials according to claim 5, characterized in that: A cooling mechanism (6) is provided inside the working box (104), and the cooling mechanism (6) comprises a plurality of hollow cylinders (602) rotatably connected to the side wall of the partition (108), the side of the hollow cylinder (602) away from the main body (1) penetrates the side wall of the partition (108) and extends to the outside, and the outer surface of the hollow cylinder (602) is fixedly connected with a tooth 2.

7. The extrusion device for processing medical polymer materials according to claim 6, characterized in that: The hollow cylinder (602) is meshed with teeth on the outer surface of the conical cylinder (205); the outer surface of the extended end of the hollow cylinder (602) is rotatably connected to a C-shaped plate (601); the C-shaped plate (601) is fixedly connected to the side wall of the partition (108); a plug rod (603) is fixedly connected to the side of the hollow cylinder (602) away from the main body (1); a sliding sleeve (604) is slidably connected to the inside of the C-shaped plate (601); a bidirectional thread groove is provided inside the sliding sleeve (604); the plug rod (603) is slidably connected to the inside of the bidirectional thread groove; a jet disc (605) is rotatably connected to the side of the sliding sleeve (604) away from the hollow cylinder (602); a cyclone plate is fixedly connected to the inside of the jet disc (605).

8. A method for using an extrusion device for processing medical polymer materials, characterized in that: Using the extrusion device for processing medical polymer materials as claimed in claim 7, the method comprises the following steps: S1: firstly, the main body (1) is connected to the fixing device, then the air inlet of the air inlet pump is connected to the air inlet pipe (105), and the air outlet pipe is connected to the air outlet pipe (106), then the heating device is connected to the main body (1), and at the same time, the motor (102) is started and the material to be extruded is placed in the feed port (101); S2: When the motor (102) rotates, it drives the screw rod (103) to rotate. When the screw rod (103) rotates, it transports the material inside the feed port (101) forward. During the transportation process, the heating device melts the transported material. S3: At this time, the melted material is squeezed by the rotation of the screw rod (103) and extruded through the front end of the working box (104). Thereafter, the extruded material is towed by the towing device to complete the extrusion work.

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