Low-temperature pulverizing device for anti-bonding type resin sheet

Abstract

This utility model discloses a low-temperature pulverizing device for anti-adhesion resin flakes, including a pulverizing chamber and a storage tank. The pulverizing chamber is equipped with a fixed frame and a fixed ring. A pulverizing shaft is rotatably mounted on the fixed frame, and multiple pulverizing rods are mounted on the pulverizing shaft. Both the fixed ring and the pulverizing chamber are rotatably mounted with transmission shafts. A drive motor is mounted on the fixed frame, and the drive motor is connected to the pulverizing shaft via a transmission mechanism. The pulverizing shaft is connected to one of the transmission shafts via a linkage mechanism. This utility model, through the ingenious design of transmission components such as transmission gears, linkage gears, and synchronous belt pulleys, achieves a reasonable distribution of power from the drive motor. This allows the pulverizing shaft to drive the pulverizing rods for high-speed stirring and pulverizing, while the transmission shaft drives the moving frame to achieve orderly feeding of the resin flakes. This linkage between feeding and stirring improves pulverizing efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of resin material processing equipment, and in particular to a low-temperature pulverizing device for anti-adhesion resin flakes. Background Technology

[0002] A cryogenic resin flake pulverizer is a device used to pulverize resin flakes in a low-temperature environment. Typically, cryogenic liquid nitrogen or other cryogenic media are used to cool the resin flakes below their glass transition temperature, making the resin brittle and hard. Then, the brittle resin flakes are pulverized into the desired particle size through mechanical crushing, grinding, or other methods. Pulverizing at low temperatures effectively reduces problems such as heat generation, adhesion, and degradation of the resin during the pulverization process, thus maintaining the resin's performance and quality.

[0003] Existing resin flake pulverizing devices often separate the feeding and mixing functions, with the feeding and pulverizing processes operating independently. This necessitates excessive manual intervention during operation, increasing labor costs. Furthermore, the lack of overall system integration results in low overall practicality. To address these issues, an anti-adhesion low-temperature resin flake pulverizing device is proposed. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies by proposing a low-temperature pulverizing device for anti-adhesion resin sheets.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cryogenic pulverizing device for anti-adhesion resin flakes includes a pulverizing chamber and a storage tank. The pulverizing chamber is equipped with a fixed frame and a fixed ring. A pulverizing shaft is rotatably mounted on the fixed frame, and multiple pulverizing rods are mounted on the pulverizing shaft. Both the fixed ring and the pulverizing chamber are rotatably mounted with drive shafts. A drive motor is mounted on the fixed frame and is connected to the pulverizing shaft via a transmission mechanism. The pulverizing shaft is connected to one of the drive shafts via a linkage mechanism. The two drive shafts are connected by a synchronization mechanism. Two movable frames are mounted on the other drive shaft via a connecting plate. The fixed ring is equipped with a baffle plate and a discharge port. A connecting pipe connected to the storage tank is mounted on the baffle plate.

[0007] Preferably, the transmission mechanism includes a drive gear mounted on the output shaft of the drive motor, and the crushing shaft is provided with a transmission gear that meshes with the drive gear.

[0008] Preferably, the linkage mechanism includes a linkage gear mounted on one of the drive shafts, the linkage gear meshing with the drive gear.

[0009] Preferably, the synchronization mechanism includes timing pulleys mounted on two drive shafts, and the two timing pulleys are connected by a timing belt.

[0010] Preferably, the transmission gear is smaller than the linkage gear, and the size ratio of the transmission gear to the linkage gear is 1:3.

[0011] Preferably, the inner diameter of the crushing box decreases from top to bottom, and the length of the multiple crushing rods decreases from top to bottom.

[0012] The beneficial effects of this utility model are:

[0013] 1. Through the ingenious design of transmission components such as drive gears, linkage gears, and synchronous belt pulleys, the power of the drive motor is rationally distributed. This allows the crushing shaft to drive the crushing rod for high-speed stirring and crushing, while the drive shaft drives the moving frame to achieve orderly feeding of resin flakes. This method of linking feeding and stirring improves crushing efficiency.

[0014] 2. The inner diameter of the crushing chamber decreases from top to bottom, and the crushing rods, whose lengths also decrease from top to bottom, ensure that the crushing rods can fully contact the resin flakes and apply appropriate crushing force at different heights of the crushing chamber, ensuring that the material is crushed comprehensively and efficiently, and avoiding crushing dead zones.

[0015] 3. The 1:3 ratio of the transmission gear to the linkage gear enables control of the transmission shaft speed, allowing the moving frame to rotate slowly. This slow rotation ensures sufficient cooling time for the resin flakes, allowing them to fully embrittle; it also makes the feeding process more stable and controllable, preventing excessively rapid feeding from affecting the pulverization quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the anti-adhesion resin sheet low-temperature pulverizing device proposed in this utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the vertical section structure;

[0018] Figure 3 for Figure 2 An enlarged schematic diagram of the structure at point A.

[0019] In the diagram: 1. Crushing box, 2. Support leg, 3. Fixing frame, 4. Crushing shaft, 5. Crushing rod, 6. Drive shaft, 7. Drive gear, 8. Linkage gear, 9. Synchronous pulley, 10. Synchronous belt, 11. Fixing ring, 12. Baffle plate, 13. Storage tank, 14. Connecting pipe, 15. Connecting plate, 16. Moving frame, 17. Discharge port, 18. Electric valve, 19. Drive motor, 20. Drive gear. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-3 The anti-adhesion low-temperature pulverizing device for resin flakes mainly consists of two core parts: a pulverizing chamber 1 and a storage tank 13. The components work together to achieve efficient low-temperature pulverization of resin flakes and effectively prevent adhesion during the pulverization process.

[0022] The bottom of the crushing chamber 1 is equipped with support legs 2, which provide stable support for the entire device, ensuring that the equipment remains stable during operation and preventing the crushing effect from being affected by shaking. The crushing chamber 1 is equipped with a fixing frame 3 and a fixing ring 11. The fixing frame 3 is used to fix and support key components such as the crushing shaft 4, while the fixing ring 11 cooperates with components such as the drive shaft 6 to play a role in connection and positioning.

[0023] The pulverizing shaft 4, which is rotatably mounted on the fixed frame 3, is a key component in the pulverizing process. Multiple pulverizing rods 5 are installed on it. Driven by the pulverizing shaft 4, these pulverizing rods 5 rotate at high speed, pulverizing the brittle and hard resin flakes entering the pulverizing chamber 1 through impact and shearing. To better adapt to the shape of the pulverizing chamber 1, the length of the multiple pulverizing rods 5 decreases from top to bottom, matching the design of the pulverizing chamber 1's inner diameter decreasing from top to bottom. This ensures that at different heights within the pulverizing chamber 1, the pulverizing rods 5 can fully contact the resin flakes and effectively pulverize them.

[0024] The drive motor 19 mounted on the mounting bracket 3 provides power to the entire device. The power of the drive motor 19 is transmitted to the crushing shaft 4 through a transmission mechanism. The transmission mechanism includes a drive gear 20 mounted on the output shaft of the drive motor 19 and a transmission gear 7 mounted on the crushing shaft 4. The drive gear 20 and the transmission gear 7 mesh with each other, transmitting the rotational motion of the drive motor 19 to the crushing shaft 4, causing the crushing shaft 4 to drive the crushing rod 5 to rotate at high speed, thereby realizing the crushing operation of the resin flakes.

[0025] The power of the crushing shaft 4 is also transmitted to the drive shaft 6 via a linkage mechanism. The linkage mechanism consists of a linkage gear 8 mounted on one of the drive shafts 6, which meshes with the drive gear 7, thereby transmitting part of the power from the crushing shaft 4 to the drive shaft 6. The two drive shafts 6 are connected by a synchronization mechanism, which includes synchronous pulleys 9 mounted on the two drive shafts 6 and a synchronous belt 10 connecting the two pulleys 9. Through the action of the synchronization mechanism, the two drive shafts 6 are ensured to rotate synchronously, thus ensuring the stable operation of components such as the moving frame 16 connected to the drive shafts 6.

[0026] The storage tank 13 contains cryogenic liquid nitrogen or other cryogenic media, which are key materials for cooling the resin sheets. The baffle plate 12 is provided with a connecting pipe 14 that connects to the storage tank 13. Through the connecting pipe 14, the cryogenic media in the storage tank 13 can be transported to the vicinity of the moving frame 16 to cool the resin sheets therein.

[0027] Two movable frames 16 are mounted on one of the drive shafts 6 via a connecting plate 15. These movable frames 16 are used to load resin flakes. Driven by the drive shaft 6, the movable frames 16 can rotate. When a movable frame 16 rotates below the connecting pipe 14, the cryogenic liquid nitrogen or other cryogenic medium discharged from the connecting pipe 14 cools the resin flakes inside the movable frame 16 below its glass transition temperature, making the resin brittle and easier to crush. Meanwhile, the other movable frame 16 rotates to the discharge port 17, discharging the cooled resin flakes into the crushing chamber 1 for further crushing.

[0028] Components not specifically described in this utility model are all standard parts and can be purchased from the market. The specific connection methods for each component all employ mature methods from the prior art, and will not be detailed here. Content not described in detail in this specification belongs to prior art known to those skilled in the art.

[0029] In use, after the drive motor 19 starts, it transmits power to the crushing shaft 4 through the meshing of the drive gear 20 and the transmission gear 7, causing the crushing shaft 4 to rotate at high speed. Simultaneously, due to the meshing of the transmission gear 7 and the linkage gear 8, as well as the action of the synchronization mechanism, the two transmission shafts 6 also begin to rotate, driving the moving frame 16 to perform circular motion. During the rotation of the moving frame 16, the resin flakes in one of the moving frames 16 are cooled and brittled by the low-temperature medium as they pass under the connecting pipe 14, while the brittle resin flakes in the other moving frame 16 enter the crushing chamber 1 through the discharge port 17. Inside the crushing chamber 1, the high-speed rotating crushing rod 5 performs impact, shearing, and other crushing operations on the brittle resin flakes. Because the transmission gear 7 is smaller than the linkage gear 8, and their size ratio is 1:3, this design achieves a speed reduction function, allowing the transmission shaft 6 to drive the moving frame 16 to rotate slowly, ensuring that the resin flakes have sufficient time to cool, and also ensuring that the cooled resin flakes are systematically fed into the crushing chamber 1 for crushing.

[0030] After the resin flakes are completely crushed in the crushing chamber 1, the electric valve 18 in the discharge pipe is opened, and the crushed material can be discharged through the discharge pipe, completing the entire crushing process.

[0031] 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 equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cryogenic pulverizing device for anti-adhesion resin flakes, comprising a pulverizing chamber (1) and a storage tank (13), characterized in that, The crushing box (1) is provided with a fixed frame (3) and a fixed ring (11). The fixed frame (3) is rotatably provided with a crushing shaft (4). The crushing shaft (4) is provided with multiple crushing rods (5). The fixed ring (11) and the crushing box (1) are both rotatably provided with a transmission shaft (6). The fixed frame (3) is provided with a drive motor (19). The drive motor (19) is connected to the crushing shaft (4) through a transmission mechanism. The crushing shaft (4) is connected to one of the transmission shafts (6) through a linkage mechanism. The two transmission shafts (6) are connected through a synchronization mechanism. The other transmission shaft (6) is provided with two moving frames (16) through a connecting plate (15). The fixed ring (11) is provided with a baffle plate (12) and a discharge port (17). The baffle plate (12) is provided with a connecting pipe (14) connected to the storage tank (13).

2. The low-temperature pulverizing device for anti-adhesion resin sheets according to claim 1, characterized in that, The transmission mechanism includes a drive gear (20) mounted on the output shaft of the drive motor (19), and a transmission gear (7) meshing with the drive gear (20) is provided on the crushing shaft (4).

3. The low-temperature pulverizing device for anti-adhesion resin sheets according to claim 2, characterized in that, The linkage mechanism includes a linkage gear (8) mounted on one of the drive shafts (6), which meshes with the drive gear (7).

4. The low-temperature pulverizing device for anti-adhesion resin sheets according to claim 3, characterized in that, The synchronization mechanism includes synchronous pulleys (9) mounted on two drive shafts (6), and the two synchronous pulleys (9) are connected by a synchronous belt (10).

5. The low-temperature pulverizing device for anti-adhesion resin sheets according to claim 4, characterized in that, The transmission gear (7) is smaller than the linkage gear (8), and the size ratio of the transmission gear (7) to the linkage gear (8) is 1:

3.

6. The low-temperature pulverizing device for anti-adhesion resin sheets according to claim 5, characterized in that, The inner diameter of the crushing box (1) decreases from top to bottom, and the length of the multiple crushing rods (5) decreases from top to bottom.

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