A novel underwater pelletizing device for hot melt adhesive

Abstract

This invention provides a novel underwater pelletizing device for hot melt adhesive, relating to the field of hot melt adhesive technology. It includes a base plate with a rotary drive mounted on it. A connecting plate is mounted on the output end of the rotary drive, and a limiting mechanism is provided on the connecting plate. A cutter head is mounted on the connecting plate and is detachably connected to the connecting plate via the limiting mechanism. Several blades are also detachably mounted on the cutter head. An extrusion device is also provided on the base plate, and a pelletizing area is mounted on the extrusion device. This invention, by featuring a detachable cutter head and detachable blades, allows for direct replacement of a single damaged blade without affecting other components, making operation flexible and efficient. Conversely, when multiple blades are severely worn, the limiting mechanism enables rapid disassembly and replacement of the entire cutter head, significantly shortening maintenance time. This dual detachable design reduces the complexity of component replacement and enhances the continuous operation capability of the equipment, significantly improving its practicality.

Description

Technical Field

[0001] This utility model relates to the field of hot melt adhesive technology, specifically a novel underwater pelletizing device for hot melt adhesive. Background Technology

[0002] Underwater pelletizing equipment for hot melt adhesives is a key piece of equipment used in the production process to granulate materials. Its core function is to cut the hot melt adhesive while it is still molten, forming pellets of specific sizes. This equipment is usually used in conjunction with extruders and other equipment. When the molten hot melt adhesive is continuously extruded through the extrusion die, the cutting assembly (usually high-speed rotating blades) in the device cuts the molten adhesive strip at the die exit. The cut pellets then enter a cooling system (such as water cooling) for rapid solidification and shaping, ultimately resulting in hot melt adhesive pellets with uniform size and regular shape. This underwater pelletizing method effectively avoids the sticking problem caused by insufficient cooling of the hot melt adhesive, and the pellet quality is stable, making it widely used in the large-scale production of hot melt adhesives.

[0003] In existing underwater pelletizers, the blades, cutter head, and the mechanism that drives the cutter head to rotate are mostly fixed by welding. This connection design has obvious drawbacks: once any blade is damaged, it is difficult to disassemble and replace it individually, making maintenance inconvenient; in addition, even if some blades are detachably connected to the cutter head, as the cutter head is used for a long time, most of the blades on it will be severely worn. If all the blades are disassembled and replaced at this time, the operation is also cumbersome and the practicality is poor. Utility Model Content

[0004] This invention provides a novel underwater pelletizing device for hot melt adhesive, which solves at least one of the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model discloses a novel underwater pelletizing device for hot melt adhesive, including a base plate, a rotary drive component mounted on the base plate, a connecting plate mounted on the output end of the rotary drive component, a limiting mechanism provided on the connecting plate, a cutter disc mounted on the connecting plate, the cutter disc being detachably connected to the connecting plate through the limiting mechanism, and several blades being detachably mounted on the cutter disc; the base plate is also provided with an extrusion device, and a pelletizing zone is mounted on the extrusion device.

[0006] Preferably, a U-shaped plate is slidably mounted on the base plate, and a rotary drive component is mounted on the U-shaped plate.

[0007] Preferably, a drive box is provided inside the base plate, and a groove is provided on the upper surface of the base plate. The groove communicates with the drive box. A connecting rod is fixedly provided at the lower end of the vertical section on one side of the U-shaped plate. The lower end of the connecting rod passes through the groove and extends into the drive box. The lower end of the connecting rod is slidably connected to the drive box.

[0008] Preferably, a drive motor is fixedly installed inside the drive box, and a threaded rod is fixedly connected to the output end of the drive motor. The threaded rod is rotatably connected to the inner wall of the drive box, and the threaded rod passes through the connecting rod, and the threaded rod is threadedly connected to the connecting rod.

[0009] Preferably, a rotating rod is fixedly installed on the output end of the rotary drive component, a connecting plate is fixedly installed on the rotating rod, a cavity is opened inside the rotating rod, a threaded hole is opened on the connecting plate, the threaded hole communicates with the cavity, and a through hole is opened on the rotating rod.

[0010] Preferably, the limiting mechanism includes a limiting rod, one end of which is fixedly provided with a limiting plate. The limiting rod extends into the cavity through a threaded hole and is threadedly connected to the threaded hole. A limiting hole is also provided on the limiting rod. A through hole is aligned with the limiting hole, and a bolt and nut assembly is installed in the through hole and the limiting hole.

[0011] Preferably, the cutter head has a square groove, and the limiting rod passes through the square groove and is threadedly connected to the threaded hole.

[0012] Preferably, the cutter head has several mounting holes 1, and the connecting plate has several mounting holes 2, with the mounting holes 1 and the mounting holes 2 cooperating.

[0013] Preferably, the cutter head is fixedly provided with several mounting slots, the mounting slots are provided with infeed slots, the blades extend from the infeed slots into the mounting slots, the blades are provided with several positioning holes, and the mounting slots are provided with several limiting holes symmetrically.

[0014] Preferably, the limiting hole has an internal threaded connection to a limiting component, which mates with the positioning hole.

[0015] Compared with the prior art, this utility model provides a novel underwater pelletizing device for hot melt adhesive, which has the following advantages: by setting a detachable cutter head and detachable blades, when a single blade is damaged, it can be directly disassembled and replaced without affecting other parts, making the operation flexible and efficient; when most blades are severely worn, the cutter head can be quickly disassembled and replaced with the help of the limiting mechanism, which greatly shortens the maintenance time; this dual detachable design reduces the complexity of component replacement and improves the continuous operation capability of the equipment, significantly enhancing its practicality. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

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

[0018] Figure 2For the present utility model Figure 1 Side view;

[0019] Figure 3 This is a schematic diagram showing the installation of the rotating rod and the limiting rod of this utility model;

[0020] Figure 4 This is a schematic diagram of the cutter head structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the installation of the blade of this utility model;

[0022] Figure 6 This is a top view of the mounting groove of this utility model.

[0023] In the diagram: 1. Base plate; 2. Extrusion device; 3. Pelletizing area; 4. Cutter head; 5. Threaded rod; 6. Drive box; 7. Connecting rod; 8. Drive motor; 9. U-shaped plate; 10. Rotary drive component; 11. Rotating rod; 12. Connecting plate; 13. Through hole; 14. Limiting hole one; 15. Mounting groove; 16. Limiting plate; 17. Limiting rod; 18. Cross groove; 19. Square groove; 20. Mounting hole one; 21. Blade; 22. Limiting component; 23. Positioning hole; 24. Limiting hole two. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Example 1:

[0028] An embodiment of this utility model provides a novel underwater pelletizing device for hot melt adhesive, such as... Figures 1-6 As shown, the device includes a base plate 1, on which a rotary drive component 10 is mounted. A connecting plate 12 is mounted on the output end of the rotary drive component 10. A limiting mechanism is provided on the connecting plate 12. A cutter head 4 is mounted on the connecting plate 12. The cutter head 4 is detachably connected to the connecting plate 12 through the limiting mechanism. Several blades 21 can also be detachably mounted on the cutter head 4. An extrusion device 2 is also provided on the base plate 1. A pelletizing zone 3 is mounted on the extrusion device 2.

[0029] The working principle and beneficial effects of the above technical solution are as follows: During operation, the rotary drive 10 is started, which drives the connecting plate 12 and the cutter head 4 connected thereto to rotate. The blade 21 on the cutter head 4 rotates together with the cutter head 4. At the same time, the extrusion device 2 transports the molten hot melt adhesive to the pelletizing area 3. The rotating blade 21 cuts the hot melt adhesive in the pelletizing area 3 to complete the pelletizing operation.

[0030] By setting up a detachable cutter head 4 and detachable blades 21, when a single blade 21 is damaged, it can be directly disassembled and replaced without affecting other parts, making the operation flexible and efficient. When most blades 21 are severely worn, the cutter head can be quickly disassembled and replaced with the help of the limiting mechanism, which greatly shortens the maintenance time. This dual detachable design not only reduces the complexity of component replacement, but also improves the continuous operation capability of the equipment, significantly enhancing its practicality.

[0031] Example 2:

[0032] Based on the above embodiment 1, as follows Figures 1-2 As shown, a U-shaped plate 9 is slidably mounted on the base plate 1, and a rotary drive component 10 is mounted on the U-shaped plate 9.

[0033] Preferably, a drive box 6 is provided inside the base plate 1, and a sliding groove is provided on the upper surface of the base plate 1. The sliding groove is connected to the drive box 6. A connecting rod 7 is fixedly provided at the lower end of the vertical section on one side of the U-shaped plate 9. The lower end of the connecting rod 7 passes through the sliding groove and extends into the drive box 6. The lower end of the connecting rod 7 is slidably connected to the drive box 6.

[0034] Preferably, a drive motor 8 is fixedly installed inside the drive box 6, and the output end of the drive motor 8 is fixedly connected to a threaded rod 5. The threaded rod 5 is rotatably connected to the inner wall of the drive box 6, and the threaded rod 5 passes through the connecting rod 7, and the threaded rod 5 is threadedly connected to the connecting rod 7.

[0035] The working principle and beneficial effects of the above technical solution are as follows: When the drive motor 8 starts, it drives the threaded rod 5 to rotate. By utilizing the threaded connection between the threaded rod 5 and the connecting rod 7, the connecting rod 7 is driven to slide along the drive box 6, thereby causing the U-shaped plate 9 to slide along the groove on the base plate 1. This achieves the adjustment of the overall position of the rotating drive component 10 and the cutter disc 4 and blade 21 connected to it. It can not only accurately control the blade 21 to enter the pelletizing area 3, but also flexibly change the working position of the blade 21 in the pelletizing area 3, thereby adapting to different pelletizing specifications and operational needs.

[0036] The sliding adjustment mechanism, consisting of components such as the drive motor 8, threaded rod 5, and connecting rod 7, is easy to operate and highly stable. It can flexibly adjust the relative position between the cutter head 4 and the pelletizing zone 3, thereby enhancing the equipment's versatility and operational flexibility.

[0037] Example 3:

[0038] Based on the above embodiment 2, as shown in 3- Figure 4 As shown, a rotating rod 11 is fixedly installed on the output end of the rotating drive component 10, and a connecting plate 12 is fixedly installed on the rotating rod 11. A cavity is opened inside the rotating rod 11, and a threaded hole is opened on the connecting plate 12. The threaded hole communicates with the cavity, and a through hole 13 is opened on the rotating rod 11.

[0039] Preferably, the limiting mechanism includes a limiting rod 17, one end of which is fixedly provided with a limiting plate 16. The limiting rod 17 extends into the cavity through a threaded hole and is threadedly connected to the threaded hole. A limiting hole 14 is also provided on the limiting rod 17. A through hole 13 is positioned opposite to the limiting hole 14. Bolt and nut assemblies are installed in the through hole 13 and the limiting hole 14.

[0040] Preferably, the cutter head 4 has a square groove 19, and the limiting rod 17 passes through the square groove 19 and is threadedly connected to the threaded hole.

[0041] Preferably, the cutter head 4 has a plurality of mounting holes 20, and the connecting plate 12 has a plurality of mounting holes 2, with the plurality of mounting holes 20 cooperating with the plurality of mounting holes 2.

[0042] The limiting plate 16 is provided with a cross groove 18, which allows the limiting rod 17 to be rotated with the help of a corresponding tool (such as a Phillips screwdriver) when rotating the limiting rod 17, thus improving the convenience of the assembly and disassembly process of the limiting rod 17.

[0043] The working principle and beneficial effects of the above technical solution are as follows: When installing the cutter head 4 and the connecting plate 12, insert the limiting rod 17 into the threaded hole and rotate the limiting plate 16. First, screw the limiting rod 17 into the cavity. Then, pass the square groove 19 of the cutter head 4 through the limiting plate 16 to make the cutter head 4 and the connecting plate 12 fit tightly. Then, insert the fixing parts (such as bolt and nut assemblies) into the mounting holes 1-20 and 2-2 on the upper side and fix them. Then, rotate the limiting plate 16, and the limiting rod 17 will gradually extend into the cavity. The limiting plate 16 will press the cutter head 4 onto the connecting plate 12. Then, insert the fixing parts (such as bolt and nut assemblies) into the mounting holes 1-20 and 2-2 on the lower side and fix them. When the limiting rod 17 enters the limit position of the cavity, the limiting hole 14 and the through hole 13 are aligned. Insert the bolt and nut assembly into the limiting hole 14 and the through hole 13 to fix them and complete the connection.

[0044] The threaded connection between the limiting rod 17 and the threaded hole, the fixing of the through hole 13 and the first limiting hole 14 by the bolt and nut assembly, and the cooperation between the first mounting hole 20 and the second mounting hole form a multiple fixing structure to ensure the stability of the cutter head 4 during high-speed rotation and to prevent loosening from affecting the cutting accuracy. The cooperation between the square groove 19 and the limiting plate 16 allows the cutter head 4 to be pressed tightly onto the connecting plate 12, which facilitates the quick positioning and installation of the cutter head 4 and greatly improves the maintenance efficiency of the equipment.

[0045] Example 4:

[0046] Based on the above embodiment 3, such as Figures 5-6 As shown, a number of mounting slots 15 are fixedly provided on the cutter head 4. The mounting slots 15 are provided with infeed slots. The blade 21 extends from the infeed slot into the mounting slot 15. The blade 21 is provided with a number of positioning holes 23. The mounting slots 15 are provided with a number of limiting holes 24 symmetrically.

[0047] Preferably, the limiting hole 24 is internally threaded to the limiting component 22, and the limiting component 22 cooperates with the positioning hole 23.

[0048] When the symmetrical upper and lower limiting members 22 are screwed into the limit position in the mounting groove 15, the two limiting members 22 come into contact with each other, and at the same time the limiting members 22 will be screwed into the positioning hole 23.

[0049] The working principle and beneficial effects of the above technical solution are as follows: When installing the blade 21, slide the blade 21 from the feed groove into the mounting groove 15, aligning the positioning hole 23 on the blade 21 with the limiting hole 24 on the mounting groove 15, and screw in the upper and lower symmetrical limiting members 22. When the limiting members 22 are screwed to the limit position in the mounting groove 15, the two limiting members 22 come into contact and are simultaneously screwed into the positioning hole 23, forming a bidirectional fastening of the blade 21. When disassembling, rotate the limiting members 22 in the opposite direction to disengage them from the positioning hole 23 to remove the blade 21. Through the threaded engagement between the limiting members 22 and the positioning hole 23, the blade 21 is firmly fixed in the mounting groove 15. The upper and lower symmetrical limiting members 22 work simultaneously to effectively resist the centrifugal force and tangential force on the blade 21 when it rotates at high speed, preventing loosening.

[0050] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention.

Claims

1. A novel hot melt glue underwater dicing device, characterized in that, Includes a base plate (1), on which a rotary drive (10) is mounted, and a connecting plate (12) is mounted on the output end of the rotary drive (10). A limit mechanism is provided on the connecting plate (12), and a cutter head (4) is mounted on the connecting plate (12). The cutter head (4) is detachably connected to the connecting plate (12) through the limit mechanism. Several blades (21) can also be detachably mounted on the cutter head (4). A pressing device (2) is also provided on the base plate (1), and a pelletizing area (3) is mounted on the pressing device (2).

2. A novel hot melt glue underwater cutting device according to claim 1, characterized in that, A U-shaped plate (9) is slidably mounted on the base plate (1), and a rotary drive component (10) is mounted on the U-shaped plate (9).

3. The novel hot melt glue underwater cutting device according to claim 2, characterized in that, A drive box (6) is provided inside the base plate (1). A groove is provided on the upper surface of the base plate (1). The groove is connected to the drive box (6). A connecting rod (7) is fixedly provided at the lower end of the vertical section on one side of the U-shaped plate (9). The lower end of the connecting rod (7) extends through the groove into the drive box (6). The lower end of the connecting rod (7) is slidably connected to the drive box (6).

4. The novel hot melt glue underwater cutting device according to claim 3, characterized in that, A drive motor (8) is fixedly installed inside the drive box (6). The output end of the drive motor (8) is fixedly connected to a threaded rod (5). The threaded rod (5) is rotatably connected to the inner wall of the drive box (6). The threaded rod (5) passes through the connecting rod (7), and the threaded rod (5) is threadedly connected to the connecting rod (7).

5. The novel hot melt glue underwater cutting device according to claim 1, characterized in that, A rotating rod (11) is fixedly installed on the output end of the rotating drive (10), and a connecting plate (12) is fixedly installed on the rotating rod (11). A cavity is opened inside the rotating rod (11), and a threaded hole is opened on the connecting plate (12). The threaded hole communicates with the cavity, and a through hole (13) is opened on the rotating rod (11).

6. A novel hot melt glue underwater cutting device according to claim 5, characterized in that, The limiting mechanism includes a limiting rod (17), one end of which is fixedly provided with a limiting plate (16). The limiting rod (17) extends into the cavity through the threaded hole. The limiting rod (17) is threadedly connected to the threaded hole. A limiting hole (14) is also provided on the limiting rod (17). The through hole (13) is aligned with the limiting hole (14). Bolt and nut assemblies are installed in the through hole (13) and the limiting hole (14).

7. A novel hot melt glue underwater cutting device according to claim 6, characterized in that, A square groove (19) is provided on the cutter head (4), and the limiting rod (17) passes through the square groove (19) and is threadedly connected to the threaded hole.

8. The novel hot-melt adhesive underwater dicing device according to claim 7, wherein, The cutter head (4) has several mounting holes 1 (20) and the connecting plate (12) has several mounting holes 2. The mounting holes 1 (20) and the mounting holes 2 cooperate with each other.

9. The novel hot melt glue underwater cutting device according to claim 1, characterized in that, The cutter head (4) is fixedly provided with several mounting slots (15), and the mounting slots (15) are provided with infeed slots. The blade (21) extends from the infeed slot into the mounting slot (15). The blade (21) is provided with several positioning holes (23), and the mounting slots (15) are provided with several limiting holes (24) symmetrically.

10. The novel hot-melt glue underwater dicing device according to claim 9, wherein, The limiting hole 2 (24) is internally threaded to the limiting component (22), and the limiting component (22) cooperates with the positioning hole (23).

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