Feeding device for plastic production
By designing a sealing device in the plastic extruder, the sealing problems of the hopper discharge port and feeding system inlet port are solved, dust leakage prevention and impurities prevention are achieved, and the production environment and product quality are improved.
Patent Information
- Application Number
- CN202422071354.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-26
AI Technical Summary
In the existing plastic extruder, the feed outlet of the hopper and the feeding inlet of the feeding system are both open, causing dust to be emitted into the air and pollute the environment. At the same time, external dust impurities enter the machine, affecting the quality of plastic particles.
A feeding device for plastic production is designed, including a sealing device, a flow chamber is formed in the sealing device, and the hopper and feeding module can be detached on both sides, and a first and second connecting ports are arranged to achieve sealing to prevent dust leakage and impurities from entering.
Effectively prevent dust leakage, keep the production environment clean, avoid external impurities entering, and improve the quality of plastic products and the environmental protection and cleanliness of equipment.
Smart Images
Figure CN223045126U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plastic extruders, in particular to a feeding device for plastic production. Background Art
[0002] A plastic extruder mainly consists of a driving system, a temperature control system, a main machine mixing system, a feeding system, a vacuum system, a pelletizing system, a conveying system and an auxiliary machine system, etc. Raw materials and additives enter the plastic extruder from the feed hopper through the feeding system. The material is melted and mixed in the extruder at a suitable temperature through the temperature control system. Impurities and waste gases are removed by the hydraulic screen changing system and the vacuum system. The mixed resin melt is extruded through the granulation die plate under a certain pressure, and is cooled, pelletized and conveyed to the silo after that. The rotational speeds of the main drive motor, the feeder and the pelletizer can all be adjusted and controlled according to the production capacity.
[0003] However, in the existing plastic extruders, the discharge port of the hopper and the inlet of the feeding system are both open. Raw materials and additives fall from the hopper into the feeding system and then into the plastic extruder. When the raw materials are processed by screw crushing, dust will be generated, and the dust will be emitted into the air from the inlet of the feeding system, polluting the production environment. At the same time, external dust and other impurities will also enter the plastic extruder through the inlet, polluting the raw materials, and may even cause deviation in the performance of the finally produced plastic particles. Summary of the Utility Model
[0004] The utility model aims to solve at least one of the problems in the related art to some extent. For this reason, one of the purposes of the utility model is to provide a feeding device for plastic production, which is used to achieve the surrounding seal between the discharge port of the hopper and the inlet of the feeding system, avoiding the emission of dust from the inlet of the feeding system into the air, and also preventing external dust and other impurities from entering the plastic extruder through the inlet, improving the environmental protection and cleanliness of the equipment.
[0005] A feeding device for plastic production is used for a plastic extruder. The plastic extruder includes a hopper and a feeding module. The feeding module is provided with an inlet. The plastic extruder is characterized in that it further includes a sealing device. A flow cavity is formed in the sealing device. Two side surfaces of the sealing device are respectively detachably connected to the hopper and the feeding module. The sealing device is provided with a first connection port and a second connection port. The first connection port communicates with the discharge port of the hopper, and the second connection port communicates with the inlet of the feeding module.
[0006] Furthermore, an operation port is opened at the top of the sealing device. An end cover is movably connected to the top of the sealing device. The end cover moves to open or block the operation port.
[0007] Further, a first rotating shaft is connected to one side of the operation port at the top of the sealing device, and the end of the first rotating shaft is rotatably connected to the end cover, and the end cover rotates to open or block the operation port.
[0008] Further, a locking seat is connected to the other side of the operation port relative to the first rotating shaft at the top of the sealing device, and a connecting member is connected to the side of the end cover. When the end cover blocks the operation port, the connecting member and the locking seat are connected for locking or unlocking.
[0009] Further, an observation port is opened at the center of the end cover, the observation port penetrates through the end cover and communicates with the flow cavity, and a shielding cover is movably connected to the outer side surface of the end cover, and the shielding cover moves to open or block the observation port.
[0010] Further, a second rotating shaft and an elastic member are further connected to the outer side surface of the end cover. The end of the second rotating shaft is connected to the outer side surface of the end cover. The side of the shielding cover is rotatably connected to the second rotating shaft. The elastic member is sleeved on the second rotating shaft. One end of the elastic member abuts against the surface of the end cover, and the other end abuts against the shielding cover.
[0011] Further, the material of the sealing device is stainless steel or aluminum alloy.
[0012] Further, the sealing device further includes a sealing member, and the sealing member is arranged between the sealing device and the discharge port of the hopper.
[0013] Further, the sealing member is a sealing sleeve, and the sealing sleeve is sleeved on the connection part between the sealing device and the hopper and covers the discharge port of the hopper and the first connection port.
[0014] Further, a mounting plate is connected radially along one side of the sealing device close to the feeding module, and the sealing device is threadedly connected to the feeding module through the mounting plate.
[0015] The above technical solution provided by the embodiments of the present application has the following advantages compared with the prior art: The feeding device of the present application includes a sealing device, and a flow cavity is formed inside the sealing device. The two side surfaces of the sealing device are respectively detachably connected to the hopper and the feeding module. In order to achieve a smooth connection between the hopper and the feeding module, a first connection port and a second connection port are provided on the sealing device. Among them, the first connection port is directly communicated with the discharge port of the hopper, and the second connection port is communicated with the feeding port of the feeding module. The sealing device can effectively connect the hopper and the feeding module while ensuring the sealing between the two. This sealing not only prevents the leakage of dust but also avoids the entry of external impurities, thereby improving the overall performance of the plastic extruder and the quality of plastic products. Moreover, this design also has the advantages of simple structure, convenient operation, and low maintenance cost.
[0016] The main function of this device is to effectively seal between the discharge port of the hopper and the feeding port of the feeding system, thereby achieving two main purposes. First, it can effectively prevent dust from being emitted from the feeding port of the feeding system into the surrounding air, which is of great significance for improving the working environment and reducing environmental pollution. Second, this device can also prevent external dust and other impurities from entering the interior of the plastic extruder through the feeding port, thereby ensuring the purity and quality of plastic products. In this way, the present utility model significantly improves the environmental protection and cleanliness of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The drawings here are incorporated into the specification and form a part of this specification, showing embodiments in accordance with the present utility model and used together with the specification to explain the principles of the present utility model.
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0019] In the drawings:
[0020] Figure 1 is a schematic structural diagram of an embodiment of the plastic extruder of the present application;
[0021] Figure 2 is Figure 1 a partial enlarged view of part A in
[0022] Figure 3 is a schematic structural diagram of an embodiment of the feeding device for plastic production of the present application;
[0023] Figure 4Schematic diagram of the structure for opening or closing the end cover in another embodiment of the feeding device for plastic production of the present application;
[0024] Figure 5 Schematic diagram of the structure for opening or closing the shielding cover in another embodiment of the feeding device for plastic production of the present application.
[0025] Reference numerals: 1, a feeding device for plastic production; 10, a sealing device; 11, a first connection port; 12, a second connection port; 13, an operation port; 14, an end cover; 141, a connecting member; 143, an observation port; 145, a shielding cover; 147, a second rotating shaft; 149, an elastic member; 15, a first rotating shaft; 16, a locking seat; 17, a sealing member; 18, a mounting plate; 100, a plastic extruder; 100a, a hopper; 100b, a feeding module. Detailed implementation manners
[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.
[0027] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.
[0028] As Figure 1 - Figure 5 shown, a feeding device 1 for plastic production provided by the present application is used for a plastic extruder 100. The plastic extruder 100 includes a hopper 100a and a feeding module 100b. The feeding module 100b is provided with a feeding port. The plastic extruder 100 further includes a sealing device 10. A flow cavity is formed in the sealing device 10. The two side surfaces of the sealing device 10 are respectively detachably connected to the hopper 100a and the feeding module 100b. The sealing device 10 is provided with a first connection port 11 and a second connection port 12. The first connection port 11 communicates with the discharge port of the hopper 100a, and the second connection port 12 communicates with the feeding port of the feeding module 100b.
[0029] The plastic extruder 100 generally includes a hopper 100a and a feeding module 100b. The function of the hopper 100a is to store raw materials and convey materials, while the feeding module 100b is responsible for feeding the raw materials into the extrusion part of the extruder.
[0030] In this application, a feeding port is provided on the feeding module 100b to receive raw materials from the hopper 100a. To ensure the smoothness and sealing of the entire feeding process, the plastic extruder 100 is also equipped with a sealing device 10. A flow cavity is formed inside this sealing device 10, and its main function is to prevent raw materials from leaking during transportation, prevent dust from spreading into the air during the material processing, and at the same time maintain the cleanliness and safety inside the extruder.
[0031] Both side surfaces of the sealing device 10 are designed as detachable structures, and the detachable structures can be pin connections, fitting connections, plug connections, clamping connections, threaded connections, etc., so that the sealing device 10 can be conveniently connected to the hopper 100a and the feeding module 100b respectively. This design not only facilitates installation and maintenance but also improves the flexibility and adaptability of the device. To achieve a smooth connection between the hopper 100a and the feeding module 100b, two connection ports are opened on the sealing device 10, namely the first connection port 11 and the second connection port 12. The function of the first connection port 11 is to connect the discharge port of the hopper 100a to ensure that raw materials can smoothly flow from the hopper 100a into the sealing device 10. The second connection port 12 is connected to the feeding port of the feeding module 100b, so that after the raw materials are processed in the flow cavity of the sealing device 10, they can smoothly enter the feeding module 100b and then be sent to the extrusion part of the extruder for further processing. Through this design, the entire feeding process is not only efficient but also the sealing performance is significantly improved, thereby improving the overall performance and production quality of the plastic extruder 100.
[0032] In addition, to improve the durability and reliability of the device, the inner wall of the flow cavity of the sealing device 10 is made of wear-resistant materials such as ceramic coatings or special alloy materials. This wear-resistant material can effectively resist the wear of the cavity by raw materials during the flow process, thereby extending the service life of the device.
[0033] In practical applications, to ensure the stable operation of the feeding device, this application also provides a monitoring system. The system includes temperature sensors, pressure sensors, and flow sensors for real-time monitoring of the temperature, pressure, and raw material flow rate inside the sealing device 10. Through the data collected by these sensors, the feeding process can be precisely controlled to ensure that the raw materials are fed into the extruder in the best state, thereby improving the quality and consistency of plastic products.
[0034] To further improve the operation convenience, this application also designs an automatic cleaning system. The system can be automatically started after each production ends, and the sealing device 10 and the feeding module 100b are cleaned by high-pressure air or cleaning agents to remove residual raw materials and dust. This not only ensures the cleanliness of the equipment but also reduces the labor intensity and time cost of manual cleaning.
[0035] Further, an operation port 13 is provided at the top of the sealing device 10, and an end cover 14 is movably connected to the top of the sealing device 10. The end cover 14 moves to open or block the operation port 13.
[0036] At the top position of the sealing device 10, an opening for operation is specifically provided, and this opening is called the operation port 13. To ensure that the operation port 13 can maintain a sealed state when not in use, an end cover 14 is movably connected to the top of the sealing device 10. This end cover 14 can move flexibly, and the moving methods can be translation, rotation, flipping, swinging, etc., so as to open the operation port 13 when operation is required, and operations such as observing, cleaning, and feeding can be performed on the inside of the flow cavity. After the operation is completed, the operation port 13 can be blocked, thereby ensuring that the sealing performance of the entire sealing device 10 is not affected. Through this design, the operation is convenient and the sealing effect of the device is ensured.
[0037] Further, a first rotating shaft 15 is connected to one side of the operation port 13 at the top of the sealing device 10. The end of the first rotating shaft 15 is rotatably connected to the end cover 14, and the end cover 14 rotates to open or block the operation port 13.
[0038] In this embodiment, one side of the operation port 13 at the top of the sealing device 10 is connected to the first rotating shaft 15. The end of the first rotating shaft 15 is connected to the end cover 14 through a precise mechanical structure, enabling the end cover 14 to rotate flexibly. This design allows the end cover 14 to easily open or block the operation port 13, facilitating various operations for users. The entire structure is compact and efficient, ensuring the reliability and safety of the sealing device 10 during use.
[0039] Further, a locking seat 16 is connected to the other side of the operation port 13 relative to the first rotating shaft 15 at the top of the sealing device 10. A connecting member 141 is connected to the side of the end cover 14. When the end cover 14 blocks the operation port 13, the connecting member 141 and the locking seat 16 are connected for locking or unlocking.
[0040] In this embodiment, the other side of the operation port 13 relative to the first rotating shaft 15 at the top of the sealing device 10 is connected to the locking seat 16 through a specific structure. The side of the end cover 14 is connected through a corresponding connecting member 141. When the end cover 14 completely blocks the operation port 13, through operating a corresponding mechanism, the connecting member 141 and the locking seat 16 can achieve the functions of connecting and locking or unlocking. The locking methods of the connecting member 141 and the locking seat 16 can be threaded connection, snap connection, key connection, etc., to achieve the effects of quick connection and disassembly. Such a design not only ensures the sealing performance of the sealing device 10 but also provides convenient and quick opening and closing operations, improving the use efficiency and safety of the equipment.
[0041] Further, an observation port 143 is provided at the center of the end cap 14. The observation port 143 penetrates through the end cap 14 and communicates with the flow cavity. A shielding cover 145 is movably connected to the outer side surface of the end cap 14, and the shielding cover 145 moves to open or shield the observation port 143.
[0042] In this embodiment, at the central position of the end cap 14, an observation port 143 is specially designed and opened. This observation port 143 not only penetrates the entire end cap 14, but also directly communicates with the flow cavity, making the internal situation clearly visible. To better protect and control this observation port 143, a shielding cover 145 is also movably connected to the outer side surface of the end cap 14. This shielding cover 145 can move flexibly, and the user can easily open or shield the observation port 143 as needed, so as to conveniently observe and check the internal situation of the flow cavity through the observation port 143 without affecting the normal operation of the device. This design not only ensures the convenience of observation, but also ensures the safety and sealing of the device.
[0043] Further, a second rotating shaft 147 and an elastic member 149 are also connected to the outer side surface of the end cap 14. The end of the second rotating shaft 147 is connected to the outer side surface of the end cap 14, the side of the shielding cover 145 is rotatably connected to the second rotating shaft 147, the elastic member 149 is sleeved on the second rotating shaft 147, one end of the elastic member 149 abuts against the surface of the end cap 14, and the other end abuts against the shielding cover 145.
[0044] In this embodiment, not only is the outer side surface of the end cap 14 connected to the first rotating shaft 15, but also a second rotating shaft 147 and an elastic member 149 are provided. Specifically, the end of the second rotating shaft 147 is designed to be tightly connected to the outer side surface of the end cap 14, thus forming a stable support point. The side of the shielding cover 145 is connected to the second rotating shaft 147 in a rotational manner, ensuring its flexible movement ability. In addition, the elastic member 149 is sleeved on the second rotating shaft 147, one end of it tightly abuts against the surface of the end cap 14, and the other end abuts against the shielding cover 145. The elastic member 149 can be a spring, a torsion spring, etc. Such a design not only increases the structural stability, but also through the elastic force of the elastic member 149, enables the shielding cover 145 to maintain a certain tension when rotating and opening, thus ensuring its smoothness and reliability during use. When the power to open is removed, the shielding cover 145 automatically returns to its original position due to the restoration of the elastic member 149 and automatically shields the observation port 143. This ingenious design makes the entire device more stable during operation, and at the same time improves its service life and operation convenience.
[0045] Further, the material of the sealing device 10 is stainless steel or aluminum alloy.
[0046] The material of the sealing device 10 can be selected from two materials: stainless steel or aluminum alloy. Stainless steel has good corrosion resistance and high strength, and can maintain its sealing performance in various harsh environments. Aluminum alloy, due to its light weight and good mechanical properties, is also suitable for the requirements of the sealing device 10. The choice of these two materials depends on the specific application scenario and performance requirements.
[0047] The design of the sealing device 10 must take into account various environmental factors such as temperature, humidity, and chemical corrosion. Therefore, in addition to selecting two materials with relatively strong corrosion resistance, such as stainless steel or aluminum alloy, the surface treatment of the sealing device 10 is also crucial. Usually, the surface will be subjected to anodic oxidation treatment or coated with a corrosion-resistant coating to further enhance its durability and sealing performance.
[0048] During the manufacturing process, each component of the sealing device 10 needs to be precisely processed to ensure that they can fit tightly. For example, the sealing ring is usually made of synthetic rubber or fluororubber materials with high temperature and high pressure resistance to adapt to different working conditions. In addition, the installation and disassembly of the sealing device 10 must also be simple and convenient for maintenance and replacement.
[0049] Furthermore, the sealing device 10 further includes a seal 17, and the seal 17 is provided between the sealing device 10 and the discharge port of the hopper 100a.
[0050] In this embodiment, the design of the seal 17 ensures that during the material transfer process, the sealing device 10 can effectively prevent external impurities from entering the system and also prevent internal materials from leaking into the external environment. In this specific embodiment, the seal 17 can take various forms, such as a sealing ring, a gasket, or a sealant. The materials and shapes of these seals 17 can be selected and customized according to the actual application requirements to ensure the best sealing effect and the longest service life. For example, the sealing ring is usually made of an elastic material, can adapt to discharge ports of different diameters, and maintain good sealing performance under pressure. The gasket may be made of a harder material and is suitable for occasions that bear greater pressure. The sealant is suitable for filling small gaps and providing a more delicate sealing effect. By flexibly selecting and combining these seals 17, efficient sealing of the discharge port of the hopper 100a can be achieved, ensuring the stable operation of the entire system.
[0051] Furthermore, the seal 17 is a sealing sleeve, and the seal 17 is sleeved on the connection between the sealing device 10 and the hopper 100a and covers the discharge port of the hopper 100a and the first connection port 11.
[0052] In this embodiment, the seal 17 is in the form of a sealing sleeve, which is carefully designed and installed at the connection part between the sealing device 10 and the hopper 100a. It tightly sleeves between the two, ensuring a seamless combination. The function of the sealing sleeve is to cover and protect the discharge port of the hopper 100a and the first connection port 11 connected thereto. In this way, the sealing sleeve effectively prevents the intrusion of external impurities or contaminants, and also avoids the leakage of internal materials, ensuring the sealing performance and cleanliness of the entire system.
[0053] Furthermore, on the side of the sealing device 10 close to the feeding module 100b, a mounting plate 18 is radially connected, and the sealing device 10 is threadedly connected to the feeding module 100b through the mounting plate 18.
[0054] In this embodiment, a mounting plate 18 is provided in the radial direction on the side of the sealing device 10 close to the feeding module 100b. This mounting plate 18 is closely connected to the sealing device 10, ensuring the stability and sealing performance between the two. Through this mounting plate 18, the sealing device 10 can be threadedly connected to the feeding module 100b, thereby achieving a firm combination between the two. The threaded connection method not only ensures the connection strength but also facilitates disassembly and maintenance, improving the flexibility and reliability of the overall equipment. The presence of the mounting plate 18 makes the connection between the sealing device 10 and the feeding module 100b more precise and stable, ensuring the efficient operation of the entire system.
[0055] It can be understood that the above embodiments only represent the preferred implementation modes of the present invention, and the description is relatively specific and detailed, but it cannot be construed as a limitation on the scope of the patent of the present invention; it should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, the above technical features can be freely combined, and several deformations and improvements can also be made, which all belong to the protection scope of the present invention; therefore, all equivalent transformations and modifications made to the scope of the claims of the present invention shall fall within the scope covered by the claims of the present invention.
Claims
1. A feeding device for plastic production, used for a plastic extruder, the plastic extruder comprising a hopper and a feeding module, the feeding module being provided with a feed inlet, characterized in that: The plastic extruder also includes a sealing device, a flow cavity is formed in the sealing device, and the two side surfaces of the sealing device are detachably connected to the hopper and the feeding module respectively. The sealing device is provided with a first connecting port and a second connecting port, the first connecting port is connected to the discharge port of the hopper, and the second connecting port is connected to the inlet of the feeding module.
2. A feeding device for plastic production according to claim 1, characterized in that: An operating port is provided on the top of the sealing device, and an end cover is movably connected to the top of the sealing device. The end cover moves to open or cover the operating port.
3. A feeding device for plastic production according to claim 2, characterized in that: The top of the sealing device is located at one side of the operating port and is connected to a first rotating shaft, and the end of the first rotating shaft is rotatably connected to the end cover, and the end cover rotates to open or cover the operating port.
4. A feeding device for plastic production according to claim 3, characterized in that: The top of the sealing device is located on the other side of the operating port relative to the first rotating shaft and is connected to a locking seat, and the side of the end cover is connected to a connecting piece. When the end cover covers the operating port, the connecting piece and the locking seat are connected to lock or unlock.
5. A feeding device for plastic production according to any one of claims 2 to 4, characterized in that: An observation port is provided at the center of the end cover, the observation port passes through the end cover and is connected to the flow cavity, and a shielding cover is movably connected to the outer side of the end cover, and the shielding cover moves to open or shield the observation port.
6. A feeding device for plastic production according to claim 5, characterized in that: The outer side surface of the end cover is also connected to a second rotating shaft and an elastic member, the end of the second rotating shaft is connected to the outer side surface of the end cover, the side of the shielding cover is rotatably connected to the second rotating shaft, the elastic member is sleeved on the second rotating shaft, one end of the elastic member abuts against the surface of the end cover, and the other end abuts against the shielding cover.
7. A feeding device for plastic production according to any one of claims 1 to 4, characterized in that: The sealing device is made of stainless steel or aluminum alloy.
8. A feeding device for plastic production according to any one of claims 1 to 4, characterized in that: The sealing device further comprises a sealing member, and the sealing member is arranged between the sealing device and the discharge port of the hopper.
9. A feeding device for plastic production according to claim 8, characterized in that: The sealing member is a sealing sleeve, which is arranged at the connection between the sealing device and the hopper and covers the discharge port of the hopper and the first connection port.
10. A feeding device for plastic production according to any one of claims 1 to 4, characterized in that: A mounting plate is radially connected to one side of the sealing device close to the feeding module, and the sealing device is threadedly connected to the feeding module via the mounting plate.