Extrusion device of non-woven fabric melt-blowing machine
By introducing anti-blocking flaps and cleaning scrapers into the extrusion device of the non-woven meltblown machine, the problem of feed port blockage was solved, stable supply and uniform melting of raw materials were achieved, production efficiency and product quality were improved, and equipment failures and maintenance costs were reduced.
Patent Information
- Application Number
- CN202422638107.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-10-14
- Estimated Expiration
- 2034-10-31
AI Technical Summary
During the production process of the existing non-woven meltblown extruder, the raw material accumulation near the feed port is prone to blockage, which affects production efficiency and product quality, and may cause damage to the equipment and increase maintenance costs.
The anti-blocking mechanism consists of an anti-blocking flap, a flap shaft and a drive assembly. Through the extruder barrel, anti-blocking mechanism and other settings, the raw materials are disturbed and dispersed before entering. Combined with the cleaning scraper to scrape off the residual material, it ensures smooth entry and uniform melting of the raw materials, and realizes continuous power transmission through the drive assembly to simplify the equipment structure.
It reduces the problems of raw material accumulation and clogging, ensures the stable operation of the extrusion device, improves production efficiency and product quality consistency, reduces downtime and maintenance costs, and enhances equipment reliability.
Smart Images
Figure CN223433582U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the field of non-woven fabric melt blowing technology, in particular to a non-woven fabric melt blowing machine extrusion device. BACKGROUND
[0002] Non-woven fabric melt blowing technology is an important non-woven fabric production process, which uses high-speed hot air to stretch and refine molten polymers to form a super-fine fiber web. This technology has the advantages of high production efficiency, low cost, uniform fiber fineness, good filtering effect, etc., and is widely used in medical, health, protection, packaging and other fields. At the same time, as the core material of protective products such as masks, the demand for melt-blown non-woven fabric has increased sharply, which has promoted the rapid development of non-woven fabric melt blowing technology.
[0003] In related technology, in the production process of a non-woven fabric melt blowing machine, an extrusion device is one of the core components, which is responsible for extruding molten polymers into fibers. However, in the continuous production process of the existing extrusion device, the feeding port is prone to blockage caused by material accumulation, forming a block-shaped structure that is difficult to flow, which hinders the smooth entry of the material into the extrusion device. This not only affects production efficiency and product quality, but also may cause damage to the equipment, increasing maintenance costs, so it needs to be improved. CONTENT OF THE INVENTION
[0004] In order to solve the problem of easy blockage of the feeding port of the existing extrusion device, the application provides a non-woven fabric melt blowing machine extrusion device.
[0005] The non-woven fabric melt blowing machine extrusion device provided by the application adopts the following technical scheme:
[0006] A non-woven fabric melt blowing machine extrusion device, comprising a frame body, an extrusion barrel is arranged on the frame body, a feeding hopper is communicated with the extrusion barrel, an extrusion port is arranged at the end of the extrusion barrel, an extrusion mechanism is arranged inside the extrusion barrel, a anti-blocking mechanism is arranged in the feeding hopper, the anti-blocking mechanism comprises an anti-blocking flap, a flap shaft and a driving assembly, the two ends of the flap shaft are rotatably connected to the inner wall of the feeding hopper, the anti-blocking flap is provided with an assembly part, the assembly part is sleeved and fixed on the flap shaft, the flap shaft blocks the inlet of the feeding hopper, the driving assembly is connected outside the feeding hopper, and the driving assembly is used to drive the flap shaft to rotate.
[0007] The existing extrusion device is prone to blockage caused by material accumulation near the feeding port during continuous production, forming a block structure that is difficult to flow, which hinders the smooth entry of the material into the extrusion device, which not only affects the production efficiency and product quality, but also can cause damage to the equipment and increase maintenance costs; by adopting the above technical scheme, the frame body is provided, the extrusion cylinder is installed on the frame body, the anti-blocking mechanism is installed in the feeding hopper of the extrusion cylinder, and the anti-blocking mechanism is composed of an anti-blocking flap, a flap shaft and a driving assembly; through the arrangement of the extrusion cylinder and the anti-blocking mechanism, the material can be effectively disturbed and dispersed before entering the extrusion cylinder, reducing the accumulation and blockage of the material near the feeding port, ensuring the continuous and stable operation of the extrusion device, ensuring the smooth entry and uniform melting of the material, ensuring the quality stability and consistency of the extruded product, improving the production efficiency, reducing the problems of material accumulation and uneven melting caused by blockage, reducing downtime and maintenance costs caused by equipment failure, and enhancing the reliability of the equipment.
[0008] Optionally, a fastening bolt for fixing the flap shaft is arranged on the assembly part, and the fastening bolt penetrates the assembly part and the flap shaft.
[0009] By adopting the above technical scheme, the anti-blocking flap is sleeved on the flap shaft through the assembly part and is fixed through the fastening bolt; through the arrangement of the assembly part and the fastening bolt, the connection is firm, the stability of the anti-blocking flap during rotation is ensured, the anti-blocking flap can withstand a large torque and shear force, the service life of the anti-blocking flap is improved, the installation is simplified, the disassembly and assembly are convenient, and maintenance is easy.
[0010] Optionally, a material cleaning scraper for scraping off the material is arranged at both ends of the anti-blocking flap, and the material cleaning scraper abuts against the inner wall of the feeding hopper.
[0011] By adopting the above technical scheme, the material cleaning scraper is installed on the anti-blocking flap; through the arrangement of the material cleaning scraper, the material cleaning scraper abuts against the inner wall of the feeding hopper, and with the rotation of the anti-blocking flap, the scraper can effectively scrape off the residual material attached to the inner wall of the feeding hopper, which helps to reduce the attachment of the material in the feeding hopper, thereby further reducing the blockage problem caused by material accumulation and ensuring the smoothness of the feeding port.
[0012] Optionally, the extrusion mechanism comprises an extrusion screw and an extrusion motor, the extrusion screw is rotatably connected in the extrusion cylinder, the extrusion screw is arranged along the length direction of the extrusion cylinder, the extrusion motor is arranged on the frame body, and the output end of the extrusion motor is connected to the end portion of the extrusion screw.
[0013] By adopting the technical scheme, the extrusion mechanism comprises an extrusion screw and an extrusion motor; when the raw material enters the extrusion barrel through the feeding hopper, the extrusion motor is started, and the output end of the extrusion motor drives the extrusion screw to rotate in the extrusion barrel; with the rotation of the extrusion screw, the helical groove on the extrusion screw continuously pushes and compresses the raw material in the feeding hopper, and finally the raw material is extruded through the extrusion opening at the end of the extrusion barrel; through the arrangement of the extrusion screw and the extrusion motor, the raw material can be continuously pushed from the feeding hopper to the end of the extrusion barrel, and the continuous pushing ensures the stable supply and efficient extrusion of the raw material.
[0014] Optionally, the driving assembly comprises a transmission gear, an auxiliary gear and an execution gear, the transmission gear is connected at the end of the extrusion screw, the execution gear is connected at the end of the flap shaft, the auxiliary gear is rotatably connected on the frame body, the auxiliary gear is arranged between the transmission gear and the execution gear, and the auxiliary gear is engaged with the transmission gear and the execution gear respectively.
[0015] By adopting the technical scheme, the driving assembly comprises a transmission gear, an auxiliary gear and an execution gear; after the extrusion motor is started, the output end of the extrusion motor drives the extrusion screw to rotate in the extrusion barrel; with the rotation of the extrusion screw, the transmission gear also starts to rotate, the transmission gear transmits power to the auxiliary gear engaged with the transmission gear, the auxiliary gear receives power from the transmission gear and transmits the power to the execution gear, the execution gear starts to rotate and drives the flap shaft to rotate, and then drives the anti-blocking flap to rotate in the feeding hopper, so as to ensure the smoothness of the feeding hopper; through the arrangement of the driving assembly, the continuous and efficient transmission of power is ensured, the loss of energy in the transmission process is reduced, the operation efficiency of the entire extrusion device is improved, only one extrusion motor is needed to realize the linkage operation of the extrusion screw and the flap shaft, the equipment structure is simplified, the manufacturing cost is reduced, and the energy is saved.
[0016] Optionally, a gear box for mounting gears is arranged on the frame body, the transmission gear, the auxiliary gear and the execution gear are arranged in the gear box, and the gear box is located on one side of the feeding hopper.
[0017] By adopting the technical scheme, the gear box is mounted on the frame body, and the transmission gear, the auxiliary gear and the execution gear are located in the gear box; through the arrangement of the gear box, the gear box provides a closed and protected environment for the gears inside, effectively reduces the erosion of external factors such as dust and impurities on the gears, and prolongs the service life of the gears.
[0018] Optionally, a threaded section is arranged on the extrusion screw, and the helical pitch of the threaded section gradually decreases towards the extrusion opening of the extrusion barrel.
[0019] By adopting the technical scheme, the thread segments are integrally formed on the extrusion screw, and the helical pitch of the thread segments gradually decreases toward the extrusion barrel outlet direction; through the arrangement of the helical pitch of the thread segments, the gradually increasing extrusion and shearing effect on the material in the extrusion process is achieved by the decreasing helical pitch, which helps the material to be better plasticized and mixed, and improves the quality and uniformity of the extruded product.
[0020] Optionally, a bearing beam for supporting the extrusion barrel is arranged outside the frame body, and the extrusion barrel is arranged on the bearing beam.
[0021] By adopting the technical scheme, the bearing beam is installed on the frame body, and the extrusion barrel is installed on the bearing beam; through the arrangement of the bearing beam, the bearing beam serves as a support structure of the extrusion barrel, can effectively disperse and withstand the great pressure and vibration generated in the extrusion process, helps to enhance the structural stability of the entire extrusion device, and ensures the reliability and safety of the equipment under long-time and high-load operation.
[0022] In summary, the present application has at least one of the following beneficial technical effects:
[0023] Through the arrangement of the extrusion barrel and the anti-blocking mechanism, the raw materials can be effectively disturbed and dispersed before entering the extrusion barrel, reducing the accumulation and blocking of the raw materials near the feeding port, ensuring the continuous and stable operation of the extrusion device, ensuring the smooth entry and uniform melting of the raw materials, ensuring the quality stability and consistency of the extruded product, improving the production efficiency, reducing the problems of material accumulation and uneven melting caused by blocking, reducing the downtime and maintenance cost caused by equipment failure, and enhancing the reliability of the equipment;
[0024] Through the arrangement of the cleaning scraper, the cleaning scraper abuts against the inner wall of the feeding hopper, and as the anti-blocking flap rotates, the scraper can effectively remove the residual material attached to the inner wall of the feeding hopper, which helps to reduce the attachment of the material in the feeding hopper, thereby further reducing the blocking problem caused by material accumulation and ensuring the smoothness of the feeding port;
[0025] Through the arrangement of the driving assembly, the continuous and efficient transmission of power is ensured, the loss of energy in the transmission process is reduced, the operation efficiency of the entire extrusion device is improved, and only one extrusion motor is needed to realize the linkage operation of the extrusion screw and the flap shaft, which simplifies the equipment structure, reduces the manufacturing cost, and saves energy. BRIEF DESCRIPTION OF DRAWINGS
[0026] Figure 1 is a structure diagram of an extrusion device of a non-woven fabric melt blowing machine in an embodiment of the present application.
[0027] Figure 2 is a sectional view of an extrusion device of a non-woven fabric melt blowing machine in an embodiment of the present application.
[0028] Figure 3 It is a structural diagram used to reflect the anti-blocking mechanism in the embodiment of the present application.
[0029] Figure 4 It is a structural diagram used to reflect the drive component in the embodiment of the present application.
[0030] Explanation of the accompanying symbols: 1. Frame; 2. Extrusion barrel; 21. Extrusion port; 3. Feed hopper; 4. Extrusion mechanism; 41. Extrusion screw; 42. Extrusion motor; 5. Anti-blocking mechanism; 51. Anti-blocking flap; 52. Flap shaft; 53. Drive assembly; 531. Transmission gear; 532. Auxiliary gear; 533. Executive gear; 6. Assembly part; 61. Fastening bolt; 7. Cleaning scraper; 8. Gear box; 9. Threaded section; 10. Load-bearing beam. DETAILED DESCRIPTION
[0031] The following is combined with Figures 1-4 This application is described in further detail.
[0032] The present application embodiment discloses a non-woven fabric melt-blown extrusion device. Figure 1 The non-woven meltblown machine extrusion device includes a frame 1. In this embodiment, the frame 1 is made of channel steel. A load-bearing beam 10 is installed on the frame 1, and an extrusion cylinder 2 is installed on the load-bearing beam 10. The load-bearing beam 10 serves as a supporting structure for the extrusion cylinder 2. It can effectively disperse and withstand the huge pressure and vibration generated during the extrusion process, which helps to enhance the structural stability of the entire extrusion device and ensure the reliability and safety of the equipment under long-term, high-load operation.
[0033] Reference Figure 1 and Figure 2 In this embodiment, the extrusion barrel 2 is equipped with a feed port and an extrusion port 21. The interior of the extrusion barrel 2 is a hollow structure. A feed hopper 3 is installed on the extrusion barrel 2. The feed hopper 3 is installed at the feed port of the extrusion barrel 2. The feed hopper 3 is connected to the interior of the extrusion barrel 2. An anti-blocking mechanism 5 is installed in the feed hopper 3. The anti-blocking mechanism 5 is used to effectively disturb and disperse the raw materials, reducing the accumulation and blockage problems of the raw materials near the feed port.
[0034] Reference Figure 1 and Figure 2 An extrusion mechanism 4 is installed inside the extrusion barrel 2. In this embodiment, the extrusion mechanism 4 is used to continuously push and compress the raw materials forward. The extrusion mechanism 4 includes an extrusion screw 41 and an extrusion motor 42. The extrusion screw 41 is rotatably installed in the extrusion barrel 2. The extrusion screw 41 is arranged along the length direction of the extrusion barrel 2. The extrusion motor 42 is installed on the frame 1, and the output end of the extrusion motor 42 is connected to the end of the extrusion screw 41; it can continuously push the raw materials from the feed hopper 3 to the end of the extrusion barrel 2. The continuous pushing ensures the stable supply and efficient extrusion of the raw materials.
[0035] With reference to Figure 2 In the embodiment, the extrusion screw 41 is integrally formed with a threaded section 9, and the helical pitch of the threaded section 9 gradually decreases towards the extrusion port 21 of the extrusion barrel 2. The gradually decreasing helical pitch causes the material to be subjected to gradually increasing extrusion and shearing effects during the extrusion process, which helps the material to be better plasticized and mixed, and improves the quality and uniformity of the extruded product.
[0036] With reference to Figure 2 And Figure 3 The anti-blocking mechanism 5 includes an anti-blocking flap 51, a flap shaft 52, and a driving assembly 53. The flap shaft 52 is rotatably installed in the feed hopper 3, and the anti-blocking flap 51 is arranged to cover the opening of the feed hopper 3. The anti-blocking flap 51 is integrally formed with a mounting portion 6, and the anti-blocking flap 51 is sleeved on the flap shaft 52 through the mounting portion 6. A fastening bolt 61 is installed on the mounting portion 6 for fixing the anti-blocking flap 51 to the flap shaft 52, and the fastening bolt 61 penetrates through the mounting portion 6 and the flap shaft 52. The mounting portion 6 and the fastening bolt 61 ensure the stability of the anti-blocking flap 51 during rotation, can withstand a large torque and shearing force, and improve the service life of the anti-blocking flap 51. At the same time, the installation is simplified, and the disassembly and maintenance are convenient.
[0037] With reference to Figure 2 And Figure 3 The anti-blocking flap 51 is provided with a material cleaning scraper 7 at each end, and the material cleaning scraper 7 abuts against the inner wall of the feed hopper 3. In the embodiment, the material cleaning scraper 7 can be made of hard elastic rubber material, which can effectively reduce the wear of the inner wall of the feed hopper 3. At the same time, the scraper can effectively scrape off the residual material attached to the inner wall of the feed hopper 3, which helps to reduce the adhesion of the material in the feed hopper 3, thereby further reducing the blocking problem caused by the accumulation of the material and ensuring the smoothness of the feed inlet.
[0038] With reference to Figure 2 The rack body 1 is provided with a gear box 8, and the gear box 8 is located on one side of the feed hopper 3. In the embodiment, the driving assembly 53 is arranged in the gear box 8, and the gear box 8 provides a closed and protected environment for the internal gears, effectively reducing the erosion of the gears by external factors such as dust and impurities, and prolonging the service life of the gears.
[0039] With reference to Figure 2 And Figure 4The driving assembly 53 comprises a transmission gear 531, an auxiliary gear 532 and an execution gear 533, the transmission gear 531 is fixedly installed at the end of the extrusion screw 41 through key connection, the execution gear 533 is fixedly installed at the end of the flap shaft 52, in the embodiment, the end of the extrusion screw 41 and the end of the flap shaft 52 both extend into the gear box 8, the auxiliary gear 532 is rotatably installed in the gear box 8, the auxiliary gear 532 is located between the transmission gear 531 and the execution gear 533, and the auxiliary gear 532 is engaged with the transmission gear 531 and the execution gear 533 respectively; the continuous and efficient transmission of power is ensured, the loss of energy in the transmission process is reduced, the operation efficiency of the whole extrusion device is improved, the linkage operation of the extrusion screw 41 and the flap shaft 52 can be realized only by using one extrusion motor 42, the equipment structure is simplified, the manufacturing cost is reduced, and energy is saved.
[0040] The implementation principle of the extrusion device of the non-woven fabric melt blowing machine is as follows: when the raw material enters the extrusion cylinder 2 through the feeding hopper 3, the extrusion motor 42 is started, the output end of the extrusion motor 42 drives the extrusion screw 41 to rotate in the extrusion cylinder 2, with the rotation of the extrusion screw 41, the transmission gear 531 also starts to rotate, the transmission gear 531 transmits power to the auxiliary gear 532 engaged with the transmission gear 531, the auxiliary gear 532 receives power from the transmission gear 531 and transmits the power to the execution gear 533, the execution gear 533 starts to rotate and drives the flap shaft 52 to rotate, thereby driving the anti-blocking flap 51 to rotate in the feeding hopper 3, with the rotation of the anti-blocking flap 51, the material cleaning scraper 7 can effectively scrape the residual material attached to the inner wall of the feeding hopper 3, at the same time, the thread segment 9 on the extrusion screw 41 continuously pushes and compresses the raw material in the feeding hopper 3, and finally extrudes the raw material through the extrusion opening 21 at the end of the extrusion cylinder 2; through the extrusion cylinder 2 and the anti-blocking mechanism 5, the raw material can be effectively disturbed and dispersed before entering the extrusion cylinder 2, the accumulation and blocking of the raw material near the feeding port are reduced, the extrusion device can work continuously and stably, the smooth entry and uniform melting of the raw material are ensured, the quality stability and consistency of the extruded product are ensured, the production efficiency is improved, the problems of material accumulation and uneven melting caused by blocking are reduced, the downtime and maintenance cost caused by equipment failure are reduced, and the reliability of the equipment is enhanced.
[0041] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape and principle of the present application should be covered within the protection scope of the present application.
Claims
1. A non-woven fabric melt-blown extrusion device, characterized by: The invention comprises a frame (1), wherein an extrusion barrel (2) is provided on the frame (1), and a feed hopper (3) is connected to the extrusion barrel (2), an extrusion port (21) is provided at the end of the extrusion barrel (2), an extrusion mechanism (4) is provided inside the extrusion barrel (2), and an anti-blocking mechanism (5) is provided inside the feed hopper (3), and the anti-blocking mechanism (5) comprises an anti-blocking flap (51), a flap shaft (52) and a driving assembly (53), wherein both ends of the flap shaft (52) are respectively rotatably connected to the inner wall of the feed hopper (3), the anti-blocking flap (51) is provided with an assembly part (6), and the assembly part (6) is sleeved and fixed on the flap shaft (52), and the flap shaft (52) is blocked at the inlet of the feed hopper (3), and the driving assembly (53) is connected to the outside of the feed hopper (3), and the driving assembly (53) is used to drive the flap shaft (52) to rotate.
2. A non-woven fabric melt-blown extrusion device according to claim 1, characterized in that: The assembly portion (6) is provided with a fastening bolt (61) for fixing with the flap shaft (52), and the fastening bolt (61) passes through the assembly portion (6) and the flap shaft (52).
3. The non-woven fabric melt-blown extruder according to claim 1, characterized in that: Both ends of the anti-blocking flap (51) are provided with cleaning scrapers (7) for scraping off materials, and the cleaning scrapers (7) abut against the inner wall of the feed hopper (3).
4. The non-woven fabric melt-blown extruder according to claim 1, characterized in that: The extrusion mechanism (4) comprises an extrusion screw (41) and an extrusion motor (42); the extrusion screw (41) is rotatably connected to the extrusion barrel (2); the extrusion screw (41) is arranged along the length direction of the extrusion barrel (2); the extrusion motor (42) is arranged on the frame (1); and the output end of the extrusion motor (42) is connected to the end of the extrusion screw (41).
5. The non-woven fabric melt-blown extrusion device according to claim 4, characterized in that: The driving assembly (53) includes a transmission gear (531), an auxiliary gear (532) and an execution gear (533); the transmission gear (531) is connected to the end of the extrusion screw (41); the execution gear (533) is connected to the end of the flap shaft (52); the auxiliary gear (532) is rotatably connected to the frame (1); the auxiliary gear (532) is arranged between the transmission gear (531) and the execution gear (533); and the auxiliary gear (532) is respectively engaged with the transmission gear (531) and the execution gear (533).
6. The non-woven fabric melt-blown extrusion device according to claim 5, characterized in that: A gear box (8) for mounting gears is provided on the frame (1); the transmission gear (531), the auxiliary gear (532) and the execution gear (533) are all arranged in the gear box (8); and the gear box (8) is located on one side of the feed hopper (3).
7. The non-woven fabric melt-blown extruder according to claim 4, characterized in that: The extrusion screw (41) is provided with a thread segment (9), and the spiral pitch of the thread segment (9) decreases in sequence toward the extrusion port (21) of the extrusion barrel (2).
8. The non-woven fabric melt-blown extruder according to claim 1, characterized in that: A bearing beam (10) for supporting the extrusion cylinder (2) is provided outside the frame (1), and the extrusion cylinder (2) is arranged on the bearing beam (10).