Planetary extruder

Abstract

The utility model relates to a planetary extruder, and relates to the field of planetary extruders. The device comprises an extruder body, a feeding shell is fixedly installed above the extruder body, a positioning frame is installed in the feeding shell, the positioning frame and the feeding shell are clamped and fixed, a cleaning rotary frame is installed at the lower end of the positioning frame, and a motor for driving the cleaning rotary frame to rotate is installed on the upper end face of the positioning frame; a feeding shell is further installed on the upper end face of the feeding shell. By arranging the cleaning swing frame, raw materials remaining in the feeding shell can be cleaned in time, the feeding blockage problem caused by raw material accumulation is avoided, the feeding smoothness of the planetary extruder is guaranteed, and the production efficiency is improved. The protective blocking frame can effectively prevent foreign matter from entering the feeding shell, and the risk that equipment is damaged by the foreign matter is reduced.

Description

Technical Field

[0001] This application relates to the technical field of planetary extruders, and more particularly to planetary extruders. Background Technology

[0002] PVC film is a slightly yellowish, translucent, and glossy film. Its main component is polyvinyl chloride (PVC), with other components added to enhance its heat resistance, toughness, and ductility. As a surface film, PVC film consists of a top layer of paint, a middle layer of PVC as the main component, and a bottom layer of backing adhesive. A planetary extruder is used in the PVC film processing to extrude raw materials into shape. The extrusion system of a planetary extruder consists of a feeding section and planetary sections. Most existing planetary extruders only have a simple hopper function in their feeding section.

[0003] Regarding the aforementioned technologies, it has been found that existing planetary extruder feed housing structures are relatively simple, typically only possessing basic raw material introduction functions. In actual production, as raw materials are continuously fed into the feed housing, the lack of an effective cleaning mechanism easily leads to the accumulation of residual material inside the feed housing. This severely affects the smoothness of feeding into the planetary extruder, thereby reducing production efficiency. Utility Model Content

[0004] In order to achieve stable raw material introduction and avoid material accumulation, this application provides a planetary extruder.

[0005] The planetary extruder provided in this application adopts the following technical solution:

[0006] A planetary extruder includes an extruder body, a feed shell fixedly installed on the top of the extruder body, a positioning frame installed in the feed shell, the positioning frame engaging and fixed with the feed shell, a cleaning spindle installed at the lower end of the positioning frame, and a motor for driving the cleaning spindle to rotate installed on the upper end face of the positioning frame. A feed inlet shell is also installed on the upper end face of the feed shell, the feed inlet shell being detachably and fixedly connected to the feed shell, and a protective baffle is also installed in the feed inlet shell, the protective baffle being fixedly connected to the feed inlet shell.

[0007] By adopting the above technical solution, a feed shell is fixedly installed above the extruder body, allowing the raw materials to be processed to enter the extruder stably through the feed shell. A positioning frame and a cleaning rotor are installed inside the feed shell; the cleaning rotor is driven by a motor to rotate, cleaning the inside of the feed shell, preventing raw material residue, and ensuring smooth feeding. The feed shell and the feed housing are detachably and fixedly connected, facilitating cleaning and maintenance of both. The protective baffle prevents foreign objects from entering the feed shell, protecting the internal structure of the equipment and improving its stability and service life.

[0008] Optionally, the feed housing includes an annular shell and a guide shell, wherein the guide shell is installed on the lower end face of the annular shell and is integrally formed with the annular shell.

[0009] By adopting the above technical solution, the feed shell adopts an integrated structure of ring shell and guide shell, which makes the feeding process smoother. The guide shell can accurately guide the raw material into the extruder body, reducing the loss and blockage of raw material during the feeding process.

[0010] Optionally, the upper end face of the ring shell is provided with a plurality of insertion slots along the circumferential direction for mounting the positioning frame.

[0011] By adopting the above technical solution, the insertion slot opened on the ring shell provides accurate positioning for the installation of the positioning frame, ensuring the stability of the positioning frame installation, and thus ensuring that the cleaning rotary frame can accurately clean the inside of the feed shell.

[0012] Optionally, the positioning frame includes a central frame base and positioning side plates. The positioning side plates are evenly installed on the outer side surface of the central frame base along the circumferential direction, and the positioning side plates are integrally formed with the central frame base.

[0013] By adopting the above technical solution, the central frame base and positioning side plate of the positioning frame are integrally formed, resulting in a robust structure that provides stable support for the cleaning rotating frame. At the same time, the circumferential distribution of the positioning side plate makes the connection between the positioning frame and the feed shell more secure.

[0014] Optionally, the cleaning swivel frame includes a central shaft and an outer frame plate. The head of the central shaft is rotatably mounted on the lower end face of the middle frame base, and the outer frame plate is mounted on the outer side of the central shaft and is fixedly connected to the central shaft.

[0015] By adopting the above technical solution, the central shaft and outer frame plate of the cleaning swivel are fixedly connected, and can rotate stably under the drive of the motor. The outer frame plate can thoroughly clean the inner wall of the feed shell, effectively preventing raw material residue.

[0016] Optionally, a bushing for rotating the central shaft is provided at the center of the lower end face of the middle frame base. The bushing is integrally formed with the middle frame base. An arc-shaped plate that fits against the outer side of the bushing is also provided on the outer frame plate. The arc-shaped plate is integrally formed with the outer frame plate.

[0017] By adopting the above technical solution, the bushing at the lower end of the middle frame provides stable support for the rotation of the central shaft. The arc plate fits against the outer side of the bushing, further enhancing the stability of the cleaning frame rotation and improving the cleaning effect.

[0018] Optionally, the feed shell includes an inclined shell, a middle sleeve shell, and an outer ring sleeve fitted on the head of the ring shell. The middle sleeve shell is installed on the lower end face of the inclined shell, and the outer ring sleeve is coaxially arranged on the lower end face of the middle sleeve shell. The inclined shell, the middle sleeve shell, and the outer ring sleeve are integrally formed.

[0019] By adopting the above technical solution, the inclined shell, middle sleeve and outer ring sleeve of the feed shell are integrally formed, with a compact structure. The inclined shell can guide the raw material to enter the feed shell smoothly, and the cooperation between the outer ring sleeve and the ring shell makes the connection between the feed shell and the feed shell tighter, preventing raw material leakage.

[0020] Optionally, the protective baffle includes an outer baffle and a snap-fit ​​housing fastened to the motor. The outer baffle is evenly installed on the outer side of the snap-fit ​​housing along the circumferential direction. One end of the outer baffle is fixedly connected to the snap-fit ​​housing, and the other end of the outer baffle is fixed to the inner side of the inclined shell.

[0021] By adopting the above technical solution, the outer baffle and buckle structure of the protective baffle can not only prevent foreign objects from entering the feed shell, but also protect the motor and extend its service life.

[0022] In summary, this application includes at least one of the following beneficial technical effects: The cleaning swivel frame allows for timely removal of residual raw materials inside the feed housing, preventing feed blockage caused by material accumulation, ensuring smooth feeding of the planetary extruder, and improving production efficiency. The protective baffle effectively prevents foreign objects from entering the feed housing, reducing the risk of equipment damage due to foreign objects. The detachable and fixed connection between the feed housing and the feed shell facilitates cleaning and maintenance of both, reducing equipment maintenance costs and difficulty. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application.

[0024] Figure 2 This is a perspective view of the feeding shell, positioning frame, cleaning rotating frame, feed shell, and protective baffle in the embodiments of this application.

[0025] Figure 3 This is a perspective view of the feed shell in the embodiments of this application.

[0026] Figure 4 This is a perspective view of the positioning frame and cleaning rotating frame working together in the embodiments of this application.

[0027] Figure 5 yes Figure 4 Front view of the device shown.

[0028] Figure 6 This is a perspective view of the feeding shell and protective baffle in the embodiments of this application.

[0029] Explanation of reference numerals in the attached drawings: 1. Extruder body; 2. Feed shell; 21. Ring shell; 211. Insertion groove; 22. Guide shell; 3. Positioning frame; 30. Motor; 31. Middle frame base; 311. Bushing; 32. Positioning side plate; 4. Cleaning swivel frame; 41. Central shaft; 42. Outer frame plate; 421. Arc plate; 5. Feed shell; 51. Inclined material shell; 52. Middle sleeve shell; 53. Outer ring sleeve; 6. Protective baffle; 61. Outer baffle bar; 62. Buckle shell. Detailed Implementation

[0030] The present application will be further described in detail below with reference to the accompanying drawings.

[0031] This application discloses a planetary extruder. (Refer to...) Figure 1 , Figure 2 and Figure 3 As shown, a planetary extruder includes an extruder body 1. A feed shell 2 is fixedly installed on the top of the extruder body 1. A positioning frame 3 is installed in the feed shell 2 and is engaged and fixed with the feed shell 2. A cleaning spindle 4 is installed at the lower end of the positioning frame 3, and a motor 30 for driving the cleaning spindle 4 to rotate is installed on the upper end face of the positioning frame 3. A feed inlet shell 5 is also installed on the upper end face of the feed shell 2. The feed inlet shell 5 is detachably and fixedly connected to the feed shell 2, and a protective baffle 6 is also installed in the feed inlet shell 5 and is fixedly connected to the feed inlet shell 5. By fixing the feed shell 2 on the top of the extruder body 1, the raw material to be processed can stably enter the extruder through the feed shell 2. By setting the positioning frame 3 and the cleaning spindle 4 in the feed shell 2, and the motor 30 driving the cleaning spindle 4 to rotate, the inside of the feed shell 2 can be cleaned to prevent raw material residue and ensure smooth feeding. The feed housing 5 is detachably and fixedly connected to the feed housing 2, facilitating cleaning and maintenance of both. The protective baffle 6 prevents foreign objects from entering the feed housing 2, protecting the internal structure and improving equipment stability and lifespan. The feed housings 2 and 5 can be made of high-strength stainless steel, such as 304 stainless steel, which offers corrosion resistance and high strength, ensuring the equipment's longevity. The positioning frame 3, cleaning rotating frame 4, and protective baffle 6 can be made of aluminum alloy, which is lightweight, high-strength, and corrosion-resistant, reducing equipment weight while maintaining structural stability.

[0032] Reference Figure 2 and Figure 3As shown, the feed housing 2 includes an annular shell 21 and a guide shell 22. The guide shell 22 is installed on the lower end face of the annular shell 21 and is integrally formed with the annular shell 21. The feed housing 2 adopts an integrally formed structure of the annular shell 21 and the guide shell 22, which makes the feeding process smoother. The guide shell 22 can accurately guide the raw material into the extruder body 1, reducing the loss and blockage of the raw material during the feeding process. The upper end face of the annular shell 21 has several insertion slots 211 for the installation of the positioning frame 3 along the circumferential direction. The insertion slots 211 on the annular shell 21 provide accurate positioning for the installation of the positioning frame 3, ensuring the stability of the installation of the positioning frame 3, and thus ensuring that the cleaning spindle 4 can accurately clean the inside of the feed housing 2.

[0033] Reference Figure 4 and Figure 5 As shown, the positioning frame 3 includes a central frame base 31 and positioning side plates 32. The positioning side plates 32 are evenly installed on the outer surface of the central frame base 31 along the circumferential direction, and the positioning side plates 32 and the central frame base 31 are integrally formed. The central frame base 31 and the positioning side plates 32 of the positioning frame 3 are integrally formed, which makes the structure robust and can provide stable support for the cleaning rotating frame 4. At the same time, the circumferential distribution of the positioning side plates 32 makes the connection between the positioning frame 3 and the feed shell 2 more secure. When installation is required, the positioning side plates 32 can be directly engaged in the insertion slot 211 for installation. Then, the feed shell 5 presses the positioning side plates 32 to ensure that the positioning side plates 32 can be stably placed in the insertion slot 211.

[0034] Reference Figure 4 and Figure 5 As shown, the cleaning rotating frame 4 includes a central shaft 41 and an outer frame plate 42. The head of the central shaft 41 is rotatably mounted on the lower end face of the intermediate frame base 31, and the outer frame plate 42 is mounted on the outer side of the central shaft 41 and is fixedly connected to the central shaft 41. The central shaft 41 and the outer frame plate 42 of the cleaning rotating frame 4 are fixedly connected and can rotate stably under the drive of the motor 30. The outer frame plate 42 can thoroughly clean the inner wall of the feed shell 2, effectively preventing raw material residue. A bushing 311 for the central shaft 41 to be rotatably mounted is provided at the center of the lower end face of the intermediate frame base 31. The bushing 311 is integrally formed with the intermediate frame base 31. An arc-shaped plate 421 that fits against the outer side of the bushing 311 is also provided on the outer frame plate 42. The arc-shaped plate 421 is integrally formed with the outer frame plate 42. The bushing 311 at the lower end of the central frame 31 provides stable support for the rotation of the central shaft 41. The arc plate 421 fits against the outer side of the bushing 311, further enhancing the stability of the cleaning frame 4 rotation and improving the cleaning effect.

[0035] Reference Figure 6As shown, the feed housing 5 includes an inclined shell 51, a middle sleeve shell 52, and an outer ring sleeve 53 fitted onto the head of the ring shell 21. The middle sleeve shell 52 is installed on the lower end face of the inclined shell 51, and the outer ring sleeve 53 is coaxially arranged on the lower end face of the middle sleeve shell 52. The inclined shell 51, the middle sleeve shell 52, and the outer ring sleeve 53 are integrally formed. The integrally formed inclined shell 51, the middle sleeve shell 52, and the outer ring sleeve 53 of the feed housing 5 result in a compact structure. The inclined shell 51 can guide the raw material smoothly into the feed housing 2, ensuring better feeding and use of the raw material. The cooperation between the outer ring sleeve 53 and the ring shell 21 makes the connection between the feed housing 5 and the feed housing 2 tighter, preventing raw material leakage and ensuring better installation of the feed housing 5.

[0036] Reference Figure 6 As shown, the protective baffle 6 includes an outer baffle 61 and a retaining shell 62 that is fastened to the motor 30. The outer baffle 61 is evenly installed on the outer surface of the retaining shell 62 along the circumferential direction. One end of the outer baffle 61 is fixedly connected to the retaining shell 62, and the other end of the outer baffle 61 is fixed to the inner surface of the inclined material shell 51. The structure of the outer baffle 61 and retaining shell 62 of the protective baffle 6 can not only prevent foreign objects from entering the feed shell 2, but also protect the motor 30 and extend the service life of the motor 30.

[0037] The implementation principle of the planetary extruder in this embodiment is as follows: When the planetary extruder needs to be assembled, the feed shell 2 is first fixedly installed on top of the extruder body 1. After assembling the cleaning spindle 4 onto the positioning frame 3, the positioning frame 3 is installed on the ring shell 21 of the feed shell 2. The positioning side plate 32 of the positioning frame 3 is inserted into the insertion groove 211 on the ring shell 21 to achieve the locking and fixing of the positioning frame 3 and the feed shell 2. At this time, it is ensured that the cleaning spindle 4 can fit against the inner wall of the guide shell 22. Finally, the feed shell 5 is installed on the upper end face of the feed shell 2. The outer ring 53 of the feed shell 5 is fitted onto the head of the ring shell 21 to achieve a detachable and fixed connection between the feed shell 5 and the feed shell 2.

[0038] During planetary extruder operation, raw material enters through the inclined feed shell 51 of the feed housing 5, passes through the intermediate sleeve 52 and the guide shell 22 of the feed housing 2, and then enters the extruder body 1. During feeding, the motor 30 drives the cleaning swivel 4 to rotate. The outer frame plate 42 of the cleaning swivel 4 cleans the inner wall of the feed housing 2 to prevent raw material residue. The protective baffle 6 prevents foreign objects from entering the feed housing 2, protecting the internal structure of the equipment.

[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A planetary extruder, comprising an extruder body (1), characterized in that: A feed shell (2) is fixedly installed on the top of the extruder body (1). A positioning frame (3) is installed in the feed shell (2). The positioning frame (3) is engaged and fixed with the feed shell (2). A cleaning rotating frame (4) is installed at the lower end of the positioning frame (3). A motor (30) for driving the cleaning rotating frame (4) to rotate is installed on the upper end face of the positioning frame (3). An inlet shell (5) is also installed on the upper end face of the feed shell (2). The inlet shell (5) is detachably and fixedly connected with the feed shell (2). A protective baffle (6) is also installed in the inlet shell (5). The protective baffle (6) is fixedly connected with the inlet shell (5).

2. The planetary extruder according to claim 1, characterized in that: The feed shell (2) includes an annular shell (21) and a guide shell (22). The guide shell (22) is installed on the lower end face of the annular shell (21), and the guide shell (22) and the annular shell (21) are integrally formed.

3. The planetary extruder according to claim 2, characterized in that: The upper end face of the ring shell (21) is provided with several insertion slots (211) for the installation of the positioning frame (3) along the circumferential direction.

4. The planetary extruder according to claim 3, characterized in that: The positioning frame (3) includes a central frame base (31) and a positioning side plate (32). The positioning side plate (32) is evenly installed on the outer side surface of the central frame base (31) along the circumferential direction, and the positioning side plate (32) is integrally formed with the central frame base (31).

5. The planetary extruder according to claim 4, characterized in that: The cleaning swivel frame (4) includes a central shaft (41) and an outer frame plate (42). The head of the central shaft (41) is rotatably mounted on the lower end face of the middle frame base (31). The outer frame plate (42) is mounted on the outer side of the central shaft (41) and is fixedly connected to the central shaft (41).

6. The planetary extruder according to claim 5, characterized in that: A bushing (311) for rotating the central shaft (41) is provided at the center of the lower end face of the middle frame (31). The bushing (311) is integrally formed with the middle frame (31). An arc plate (421) that fits against the outer side of the bushing (311) is also provided on the outer frame plate (42). The arc plate (421) is integrally formed with the outer frame plate (42).

7. The planetary extruder according to claim 6, characterized in that: The feed shell (5) includes an inclined shell (51), a middle sleeve shell (52), and an outer ring sleeve (53) fitted on the head of the ring shell (21). The middle sleeve shell (52) is installed on the lower end face of the inclined shell (51), and the outer ring sleeve (53) is coaxially arranged on the lower end face of the middle sleeve shell (52). The inclined shell (51), the middle sleeve shell (52), and the outer ring sleeve (53) are integrally formed.

8. The planetary extruder according to claim 7, characterized in that: The protective baffle (6) includes an outer baffle (61) and a snap-fit ​​shell (62) that is fastened to the motor (30). The outer baffle (61) is evenly installed on the outer side of the snap-fit ​​shell (62) along the circumferential direction. One end of the outer baffle (61) is fixedly connected to the snap-fit ​​shell (62), and the other end of the outer baffle (61) is fixed on the inner side of the inclined shell (51).

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