A medical cover water port branch online recycling system

Abstract

The utility model discloses a kind of medical cover body water port branch on-line recycling system, belong to medical plastic waste recycling technical field;It includes crushing assembly, the crushing assembly includes crusher and cooling unit, and the crusher includes casing and the cutter roll rotationally connected with casing;The cooling unit includes air cooling cover body and blow head, the air cooling cover body is arranged in the inside one side of the casing, to partially encapsulate the cutter roll;Multiple blow head is arranged in the air cooling cover body, the cutter roll blade can be sprayed low-temperature airflow towards by the blow head, to reduce the temperature of the cutter roll blade, hinder high-temperature medical cover body water port branch stickiness and wire drawing.The utility model can avoid the situation that water port branch stickiness and wire drawing occur, improve crushing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of medical plastic waste recycling technology, and in particular to an online recycling system for the branches of medical cap sprues. Background Technology

[0002] Medical packaging covers are typically made by injection molding a mixture of polypropylene (PP) plastic granules and color masterbatch granules. This material combination has significant advantages in terms of safety, chemical stability, processing performance, and cost-effectiveness, and is therefore widely used in the field of medical packaging.

[0003] During the injection molding process, multiple medical caps are integrally molded onto the same plastic sheet, resulting in a large amount of sprue residue after demolding. This sprue residue, having just left the high-temperature mold, is often in a softened state, with temperatures reaching 80-100℃.

[0004] In traditional recycling processes, when high-temperature sprue branches and waste materials are directly fed into a crusher for pulverization, the material softens and adheres to the blade surface, resulting in severe stringing. This not only leads to low crushing efficiency but also causes blade clogging and material accumulation, seriously affecting the online recycling efficiency of the waste. Utility Model Content

[0005] In view of this, it is necessary to provide an online recycling system for medical sprue branches to solve the problem that waste sprue branches at high temperatures are not easy to break.

[0006] This utility model provides an online recycling system for medical cap sprue branches, used for online recycling and reuse of medical cap sprue branch waste. The system includes: a crushing assembly comprising a crusher and a cooling unit; the crusher comprising a housing and a cutter roller rotatably connected to the housing; the cooling unit comprising an air-cooled cover and blowers; the air-cooled cover being disposed on one side inside the housing to partially encapsulate the cutter roller; and multiple blowers disposed within the air-cooled cover, each blower capable of spraying low-temperature airflow toward the cutting edge of the cutter roller to reduce the temperature of the cutting edge and prevent the high-temperature medical cap sprue branches from adhering and forming fibers.

[0007] Furthermore, the blower head is a vortex tube or a spray gun for spraying refrigerant.

[0008] Furthermore, the edge of the air-cooled cover abuts against and is fixed relative to the housing, and the bottom of the air-cooled cover is provided with multiple toothed grooves, with the cutting pool of the cutter roller protruding relatively and located in the toothed grooves.

[0009] Furthermore, the blower head is connected to the air-cooled cover via a bracket, and the air outlet of each blower head is arranged relative to the toothed groove.

[0010] Furthermore, the air-cooled enclosure includes a U-shaped frame, an upper cover plate, and a lower base plate. The opening side of the U-shaped frame abuts against the inner wall of the housing. The lower base plate is integrally connected to the U-shaped frame, and the toothed groove is formed on the lower base plate. The upper cover plate is detachably connected to the top of the U-shaped frame.

[0011] Furthermore, the crusher also includes a drive motor for low-speed rotation, the drive motor being rotatably connected to the cutter roller.

[0012] Furthermore, it also includes a collection chamber, which is connected to the output end of the casing via a pipe. The collection chamber can collect the crushed material. The output end of the collection chamber is connected to the injection molding machine for material recycling.

[0013] Furthermore, it also includes a conveying and cooling assembly, which includes a conveyor belt and an air-cooling unit. The conveyor belt is positioned relative to the opening of the housing to convey the medical cap sprue branches into the housing. The air-cooling unit is located on both sides of the conveyor belt to cool the medical cap sprue branches.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention relates to an online recycling system for medical cap sprue branches, comprising a crushing component including a crusher and a cooling unit. The crusher includes a housing and a cutter roller rotatably connected to the housing, allowing the cutter roller to rotate relative to the housing and crush the sprue branches located within the housing. The cooling unit includes an air-cooled enclosure and multiple blowers. The air-cooled enclosure is located on one side inside the housing, partially enclosing the cutter roller, thus separating the sprue branches from the cutter roller and creating a relatively independent environment. The multiple blowers are located within the air-cooled enclosure and can spray low-temperature airflow towards the cutting edge of the cutter roller, reducing the edge temperature and preventing the hot medical cap sprue branches from sticking and forming fibers. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the crushing component in this utility model. Figure 1 ;

[0019] Figure 3This is a schematic diagram of the structure of the crushing component in this utility model. Figure 2 ;

[0020] Figure 4 This is a schematic diagram of the structure of the crushing component in this utility model. Figure 3 ;

[0021] Figure 5 This is a schematic diagram of the air-cooled unit in this utility model.

[0022] In the diagram, 100 is the crushing assembly; 110 is the crusher; 111 is the casing; 112 is the cutter roller; 113 is the drive motor; 120 is the cooling unit; 121 is the air-cooled cover; 121a is the toothed groove; 121b is the U-shaped frame; 121c is the upper cover plate; 121d is the lower bottom plate; and 122 is the blower head.

[0023] 200. Collection bin. Detailed Implementation

[0024] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0025] This embodiment describes an online recycling system for medical cap sprue branches, relating to the field of medical plastic waste recycling technology. It involves technical modifications to the crusher 110 and cooling the blades of the cutter roller 112. Without altering the overall temperature of the sprue branches, the system reduces the temperature at the contact point between the blades and the sprue branches, preventing sticking and stringing, thus improving crushing efficiency and facilitating the normal operation of the online recycling system for medical cap sprue branches.

[0026] Please see Figures 1 to 5 This embodiment discloses an online recycling system for medical cap sprue branches, including a crushing assembly 100. The crushing assembly 100 includes a crusher 110 and a cooling unit. The crusher 110 includes a housing 111 and a cutter roller 112 rotatably connected to the housing 111. The cutter roller 112 can rotate relative to the housing 111, crushing the sprue branches located in the housing 111. The air-cooling unit 120 includes an air-cooling cover 121 and multiple blowers 122. The air-cooling cover 121 is disposed on one side inside the housing 111, partially encapsulating the cutter roller 112, which can separate the sprue branches from the cutter roller 112 and form a relatively independent environment. The multiple blowers 122 are disposed in the air-cooling cover 121, and the blowers 122 can spray low-temperature airflow toward the cutting edge of the cutter roller 112 to reduce the cutting edge temperature and prevent the high-temperature medical cap sprue branches from sticking and forming fibers.

[0027] During operation, high-temperature sprue branch waste enters the crushing chamber, where the rotating cutter roller 112 cuts it. The air-cooled shroud 121 partially encloses the working area of ​​the cutter roller 112, and the blower head 122 continuously sprays low-temperature airflow onto the cutting edge. The airflow carries away heat upon contact with the high-temperature blade surface, maintaining the cutting edge temperature below zero degrees Celsius. When the cutting edge contacts the sprue branch, the relatively high temperature of the branch is absorbed by the cutting edge, causing it to cool and harden, preventing sticking and stringing. The crushed material is discharged through the bottom of the casing 111, entering the subsequent collection and recycling process.

[0028] In some embodiments, please refer to 3 to Figure 5 The blower head 122 is a vortex tube or a spray gun for spraying refrigerant. The blower head 122 can spray supercooled airflow onto the cutting edge of the cutter roller 112 to cool the cutting edge.

[0029] In practical implementation, the vortex tube is a device that generates a low-temperature airflow using compressed air. Specifically, it can be implemented by using compressed air input to form a vortex that separates hot and cold airflows. The cold-end output airflow temperature can reach a range of -20℃ to 0℃. The cold-end output port is positioned relative to the cutting edge, while the hot-end output port is connected to the outside via a pipe. This allows for preheating of the raw materials stored in the collection chamber 200, improving thermal energy utilization efficiency. The vortex tube requires no external power supply or refrigerant, making it suitable for applications requiring a stable supply of low-temperature airflow in continuous crushing operations.

[0030] The spray gun, which injects refrigerant, is a device that achieves rapid cooling by atomizing and spraying liquid refrigerant. Specifically, it can use a high-pressure nozzle to atomize liquid carbon dioxide or liquid nitrogen into a gaseous jet. The spray gun can create an ultra-low temperature environment in a localized area through the principle of phase change heat absorption, making it suitable for scenarios involving the concentrated crushing of high-temperature materials.

[0031] During operation, the vortex tube generates a low-temperature airflow by connecting to a compressed air source, which directly acts on the cutting edge area of ​​the cutter roller 112, continuously reducing the cutting edge temperature during the crushing process and preventing the plastic from melting and sticking due to high temperature.

[0032] The spray gun that injects refrigerant atomizes the liquid refrigerant to form a directional low-temperature airflow, specifically enhancing the cooling effect when the crusher 110 is operating under high load. The two types of blowers 122 can be used individually or in combination depending on the actual working conditions.

[0033] Traditional crusher cooling systems typically employ external air or water cooling, which only lowers the airflow temperature to room temperature, failing to effectively inhibit plastic melting. In contrast, vortex tubes and refrigerant spray guns, through physical cooling, can control the temperature of the cutting edge area below the plastic's softening point, fundamentally eliminating blade sticking.

[0034] In some embodiments, please refer to Figure 3 and Figure 4 The edge of the air-cooled cover 121 abuts against and is relatively fixed to the housing 111, ensuring a tight connection between the air-cooled cover 121 and the housing 111. The bottom of the air-cooled cover 121 is provided with multiple toothed grooves 121a. The cutting pool of the cutter roller 112 protrudes relatively and is located in the toothed grooves 121a, which not only avoids mechanical interference between the cutter roller 112 and the cover, but also allows for effective cooling of individual cutting edges in each toothed groove 121a, improving the cooling effect on the cutting edges and the crushing efficiency.

[0035] In the specific implementation process, the edge of the air-cooled cover 121 abuts against the housing 111, and the air-cooled cover 121 and the housing 111 are positioned and connected through mechanical contact. This can be achieved by welding, bolting, or snap-fit ​​structures. Its function is to prevent the air-cooled cover 121 from shifting due to vibration during the crushing process and to ensure the stability of the jet direction of the low-temperature airflow. The toothed groove 121a is a groove structure opened at the bottom of the air-cooled cover 121. It can be achieved by milling or stamping. Its function is to provide a space for the cutting pool of the cutter roller 112, to prevent mechanical interference between the cutting pool and the air-cooled cover 121, and to maintain the integrity of the airflow channel.

[0036] When the cutter roller 112 rotates, the protruding part of the cutting pool is embedded inside the tooth groove 121a, so that a gap is maintained between the cutter roller 112 and the air-cooled cover 121 during the crushing process, avoiding high temperature or structural damage caused by contact friction. Thus, when crushing high-temperature sprue branches, the air-cooled cover 121 can not only continuously guide the low-temperature airflow to cool the cutter roller 112, but also reduce mechanical interference through the cooperation between the tooth groove 121a and the cutting pool, ensuring the continuity of the crushing action.

[0037] For further implementation methods, please refer to Figure 4 and Figure 5 The blower head 122 is connected to the air-cooled cover 121 via a bracket. The air outlet of each blower head 122 is set relative to the toothed groove 121a. The blower head 122 is fixed by the bracket and the air outlet is oriented so that the cooling airflow accurately covers the high-temperature area and significantly improves the cooling effect.

[0038] In practical implementation, the bracket serves as a support structure for fixing the blower head 122. It can be made of metal or plastic and is connected to the air-cooled cover 121 by bolts or welding to ensure that the blower head 122 maintains a stable position during operation. By adjusting the angle or position of the bracket, the low-temperature airflow can directly act on the contact area between the cutting edge of the cutter roller 112 and the waste material, further suppressing adhesion.

[0039] When the cutter roller 112 rotates, a low-temperature airflow is continuously sprayed from the blower head 122, covering the cutting area between the cutting edge of the cutter roller 112 and the tooth groove 121a. The low-temperature airflow can quickly cool the surface of the cutting edge and at the same time reduce the temperature of the waste material accumulated in the tooth groove 121a, preventing the molten material from adhering to the edge of the cutter roller 112 or the tooth groove 121a, thereby avoiding wire pulling.

[0040] In some embodiments, please refer to Figure 5 This application further proposes that the air-cooled cover 121 includes a U-shaped frame 121b, an upper cover plate 121c and a lower base plate 121d. The open side of the U-shaped frame 121b abuts against the inner wall of the housing 111, which can partially surround the cutter roller 112 to form a relatively closed space.

[0041] The lower base plate 121d is integrally connected with the U-shaped frame 121b. The toothed groove 121a is opened on the lower base plate 121d, which can ensure the positional accuracy of the toothed groove 121a and effectively control the mating clearance between the cutter roller 112 and the toothed groove 121a.

[0042] The top cover 121c is detachably connected to the top of the U-shaped frame 121b. When it is necessary to clean the inside of the air-cooled cover 121 or replace the blower head 122, the top cover 121c can be removed separately for operation.

[0043] In practical implementation, the U-shaped frame 121b is a support frame with a U-shaped cross-section, which can be formed by bending and welding steel plates. Its open side contacts the inner wall of the housing 111 for positioning and fixation, serving to support the overall structure of the air-cooled cover 121. The lower base plate 121d is a load-bearing plate located at the bottom of the U-shaped frame 121b, which can be integrally formed with the U-shaped frame 121b by casting or welding. This integrated connection method can enhance structural strength and avoid gaps affecting airflow sealing. The toothed groove 121a is a notch structure opened on the edge of the lower base plate 121d, which can be formed by milling, used to accommodate the cutting pool of the cutter roller 112 and restrict its movement trajectory. The upper cover plate 121c is a plate-like component covering the top of the U-shaped frame 121b, which can be detachably installed by bolt connection, facilitating cleaning and maintenance of the interior of the air-cooled cover 121.

[0044] In some embodiments, please refer to Figure 1 The crusher 110 also includes a drive motor 113 for low-speed rotation. The drive motor 113 is rotatably connected to the cutter roller 112. The low-speed rotation of the cutter roller 112 can reduce the interaction strength between the cutting edge and the sprue branch, and prevent the occurrence of sticking and wire pulling phenomena.

[0045] The low-speed drive motor 113 refers to a power unit with a rotational speed lower than that of the conventional crusher drive component 110. Specifically, it can be implemented using a geared motor or a variable frequency speed control motor. By reducing the rotational speed of the cutter roller 112, frictional heat generation is reduced. The drive motor 113 and the cutter roller 112 can be directly connected by a coupling or by a belt pulley drive structure to ensure the stability of power transmission and control mechanical vibration.

[0046] During the cutting of branch waste by the cutter roller 112, the low-speed rotation reduces the instantaneous impact force when the cutting edge contacts the material, while also reducing the local temperature rise caused by high-speed friction. The rigid connection structure between the drive motor 113 and the cutter roller 112 avoids speed fluctuations caused by transmission gaps, ensuring uniform cutting action.

[0047] Conventional crusher 110 uses a high-speed motor to drive the cutter roller 112 for rapid crushing. However, high-speed operation causes a sharp increase in the cutting edge temperature, exacerbating the adhesion and stringing of thermoplastic waste. This solution directly controls the temperature rise during the cutting process by reducing the rotational speed of the cutter roller 112, thus suppressing the material adhesion problem caused by high temperature at the power source level.

[0048] In some embodiments, please continue reading Figure 1 A medical device sprue nozzle branch online recycling system includes a collection chamber 200, which is connected to the output end of the casing 111 via a pipe. The collection chamber 200 collects the crushed material. The output end of the collection chamber 200 is connected to an injection molding machine for material recycling. Through the closed conveying system of the pipe and collection chamber 200, the material undergoes temperature regulation in a controlled environment, while direct connection to the injection molding machine enables automated feeding, eliminating the quality degradation problem caused by material exposure in traditional processes.

[0049] In practical implementation, the collection bin 200 is a sealed container for temporarily storing crushed materials. It can be constructed from welded stainless steel and equipped with an internal temperature sensor to monitor the material temperature. Its function is to prevent the high-temperature crushed materials from being exposed to air, which could lead to oxidation and deterioration. The pipeline can be a screw conveyor or a pneumatic conveying pipeline, which ensures a closed-loop, continuous transport of the crushed material from the casing 111 to the collection bin 200, preventing material spillage and environmental pollution.

[0050] When the injection molding machine needs to be fed, the discharge valve at the bottom of the collection bin 200 opens, and the material is quantitatively transferred to the injection molding machine hopper via a conveying device. The entire process is completed in a closed environment, eliminating the need for manual transfer of crushed materials and preventing the introduction of external impurities.

[0051] It should be noted that a conveying fan is installed on the pipeline between the collection bin 200 and the crusher 110, which can use negative pressure to convey the crushed material.

[0052] In some embodiments, an online recycling system for medical cap sprue branches also includes a conveying cooling component. This component includes a conveyor belt and an air-cooling unit. The conveyor belt has an opening relative to the housing 111, allowing the medical cap sprue branches to be conveyed into the housing 111, thus enabling automatic operation of the equipment. The air-cooling unit is located on both sides of the conveyor belt and can provide preliminary cooling to the hot medical cap sprue branches.

[0053] In practical implementation, the conveyor belt is a device for continuous material transport, which can be implemented using a belt conveyor mechanism. Its surface can be textured with anti-slip patterns to increase friction, and it is used to stably transport the high-temperature medical cap sprue branches from the injection molding machine outlet to the feed inlet of the crusher 110. The air-cooling unit is a device that reduces the material temperature through forced airflow, which can be implemented using multiple sets of axial flow fans. Its air outlets face the surface of the conveyor belt, and it continuously blows ambient or low-temperature airflow to pre-cool the sprue branches during the transport process.

[0054] After the injection-molded sprue branch waste is demolded, a robotic arm can pick it up and place it onto the surface of a conveyor belt, where it moves with the conveyor belt into the crusher 110. During this process, the air-cooling units located on both sides of the conveyor belt are activated simultaneously, and the airflow covers the surface area of ​​the conveyor belt, reducing the temperature of the sprue branch to below the adhesion threshold before it enters the crusher 110. When the pre-cooled sprue branch is crushed by the cutter roller 112 inside the crusher 110, the reduced temperature decreases its adhesion to the cutter, thus preventing wire pulling.

[0055] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the present utility model.

Claims

1. A system for online recycling of medical cap sprue branches, used for online recycling of medical cap sprue branch waste for reuse, characterized in that, include: A crushing assembly, comprising a crusher and a cooling unit, wherein the crusher comprises a housing and a cutter roller rotatably connected to the housing; the cooling unit comprises an air-cooled shroud and a blower head, wherein the air-cooled shroud is disposed on one side inside the housing to partially encapsulate the cutter roller; Multiple blower heads are disposed in the air-cooled cover. The blower heads can spray low-temperature airflow toward the cutting edge of the cutter roller to reduce the temperature of the cutting edge of the cutter roller and prevent the high-temperature medical cover sprue from sticking and pulling.

2. The online recycling system for the branches and stems of a medical cap as described in claim 1, characterized in that, The blower head is either a vortex tube or a spray gun used for injecting refrigerant.

3. The online recycling system for the branches and stems of a medical cap as described in claim 1, characterized in that, The edge of the air-cooled cover abuts against and is fixed relative to the housing. The bottom of the air-cooled cover is provided with multiple toothed grooves, and the cutting pool of the cutter roller protrudes relatively and is located in the toothed grooves.

4. The online recycling system for the branches and stems of a medical cap as described in claim 3, characterized in that, The blower head is connected to the air-cooled cover via a bracket, and the air outlet of each blower head is arranged opposite to the toothed groove.

5. The online recycling system for the branches of a medical cap's water inlet according to claim 3, characterized in that, The air-cooled enclosure includes a U-shaped frame, an upper cover plate, and a lower base plate. The open side of the U-shaped frame abuts against the inner wall of the housing. The lower base plate is integrally connected to the U-shaped frame, and the toothed groove is formed on the lower base plate. The upper cover plate is detachably connected to the top of the U-shaped frame.

6. The online recycling system for the branches of a medical cap's water inlet according to claim 1, characterized in that, The crusher also includes a drive motor for low-speed rotation, which is rotatably connected to the cutter roller.

7. The online recycling system for the branches and stems of a medical cap according to claim 1, characterized in that, It also includes a collection bin, which is connected to the output end of the casing via a pipe. The collection bin can collect the crushed material. The output end of the collection bin is connected to the injection molding machine for material recycling.

8. The online recycling system for the branches of a medical cap's water inlet according to claim 1, characterized in that, It also includes a conveying and cooling assembly, which includes a conveyor belt and an air-cooling unit. The conveyor belt is positioned relative to the opening of the housing to convey the medical cap sprue branches into the housing. The air-cooling unit is located on both sides of the conveyor belt to cool the medical cap sprue branches.

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