An underwater dicer

Abstract

The utility model relates to the technical fields of granulator, especially underwater granulator, when using, the staff adjusts the height of lifting platform through multiple groups of lifting assembly according to the height of upstream spiral extruder, so that the die head input end is bolted with the output end of upstream spiral extruder, improves the flexibility of operation, then the granulating assembly seals the front side of granulating chamber, realizes the flexibility of equipment installation, including base, support, granulating chamber, lifting platform and die head, the base top is provided with two groups of supports, and the lifting platform top is fixedly installed with die head, the die head output end is provided with granulating chamber, still includes lifting assembly, granulating assembly, locking assembly and water delivery component, multiple groups of lifting assembly are arranged between the support and lifting platform, the granulating assembly is slidably arranged at the lifting platform top, locking assembly is arranged between the granulating assembly and granulating chamber, and locking assembly is used for locking and fixing when the granulating assembly seals the granulating chamber.

Description

Technical Field

[0001] This utility model relates to the technical field of pelletizers, and in particular to an underwater pelletizer. Background Technology

[0002] Underwater pelletizers are key equipment used in the production of polymers (such as plastics and synthetic fibers). They can quickly cut high-temperature molten polymer strands extruded from the die holes into uniformly sized pellets directly underwater.

[0003] In the prior art, patent document CN209504628U discloses a plastic underwater pelletizer, including a slide plate slidably connected to a frame. The slide plate is provided with a left clamp and a right clamp for fixing a cutter head and a cutting chamber. Both the left clamp and the right clamp include a hinge end and a locking end. The slide plate is fixedly provided with a hinge seat, and the hinge seat is provided with two hinge shafts. The hinge ends of the left clamp and the right clamp are respectively hinged to the hinge seat through the two hinge shafts. The locking ends of the left clamp and the right clamp are provided with a locking structure that locks together.

[0004] During use, it was found that the slide plate in the above device can only slide left and right on the frame, but cannot be adjusted in height, which makes it impossible for the die head to be aligned with the upstream screw extruder, thus limiting the installation. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an underwater pelletizer.

[0006] This utility model discloses an underwater pelletizer, comprising a base, a support, a pelletizing chamber, a lifting platform, and a die head. Two sets of supports are mounted on the top of the base, and the die head is fixedly mounted on the top of the lifting platform. The output end of the die head has a pelletizing chamber. The pelletizer also includes a lifting assembly, a pelletizing assembly, a locking assembly, and a water supply assembly. Multiple sets of lifting assemblies are arranged between the support and the lifting platform. The pelletizing assembly is slidably mounted on the top of the lifting platform. A locking assembly is provided between the pelletizing assembly and the pelletizing chamber, used to lock and fix the pelletizing assembly to the pelletizing chamber for sealing. The water supply assembly is used to input cooling water into the pelletizing chamber and to transport the cut pellets. In use… Based on the height of the upstream screw extruder, the staff adjusts the height of the lifting platform using multiple sets of lifting components. This allows the die input end to be bolted to the output end of the upstream screw extruder in conjunction with the starter and screen changer, improving operational flexibility. Then, the pelletizing assembly seals the front of the pelletizing chamber. The pelletizing assembly and the pelletizing chamber are locked together using locking components. A conveying pump delivers cooling water to the pelletizing chamber through a water conveying assembly. The cooling water cools the raw material in contact with the die, and the pelletizing assembly pellets the cooled material. When the cooling water inside the pelletizing chamber is discharged, the raw material particles are also discharged, achieving flexibility in equipment installation.

[0007] Preferably, the water supply assembly includes a support frame, a fixed frame, an inlet pipe, and an outlet pipe. The support frame is installed at the top of the lifting platform, and the outlet pipe is placed at the top of the support frame. The fixed frame is fitted around the outside of the outlet pipe and is fixedly installed at the top of the support frame. The inlet end of the outlet pipe is connected to the top of the pelletizing chamber, and the outlet end of the inlet pipe is connected to the bottom of the pelletizing chamber. The inlet end of the inlet pipe is connected to the outlet end of the water pump. When the water pump is started, the water pump causes cooling water to enter the pelletizing chamber through the inlet pipe. The cooling water cools the raw material, and the pelletizing assembly pelletizes the cooled raw material. The cooling water carries the raw material particles through the outlet pipe and is discharged into the centrifugal separator. The centrifugal separator separates the raw material particles from the cooling water, and the cooling water enters the cold water tank for cooling and is reused by the water pump.

[0008] Preferably, the pelletizing assembly includes a fixed base, a slide rail, a movable base, a motor, a pelletizing cutter head, and a sealing plate. Two pairs of fixed bases are located at the top of the lifting platform, and each pair of fixed bases has a set of slide rails on its inner side. The movable base is slidably connected to the two sets of slide rails. A motor and a sealing plate are fixedly mounted at the top of the movable base. The motor output end passes through the sealing plate and is equipped with a pelletizing cutter head. In use, the movable base is slid along the slide rails, allowing the pelletizing cutter head to enter the pelletizing chamber while the sealing plate seals the front end of the pelletizing chamber. Then, a locking assembly is used to lock and fix the sealing plate and the pelletizing chamber. The motor is started, causing the pelletizing cutter head to rotate rapidly inside the pelletizing chamber, thus pelletizing the raw material extruded into the pelletizing chamber by the screw extruder through the die. The locking assembly improves the sealing performance of the sealing plate in the pelletizing chamber, increases the cooling efficiency of the raw material, and avoids problems such as material carrying by the pelletizing cutter head, pipe blockage, and pellet agglomeration. It also facilitates subsequent moisture removal from the raw material pellets, improving processing efficiency.

[0009] Preferably, the locking assembly includes a shaft pin, a lead screw, a U-shaped clamping plate, and a wing nut. The two sets of lead screws are respectively hinged to the sealing plate via the shaft pin. A set of U-shaped clamping plates is symmetrically arranged on the outer side wall of the pelletizing chamber. Each set of lead screws is threadedly connected to a set of wing nuts. When the sealing plate seals the front end of the pelletizing chamber, the operator moves the lead screw into the inner side of the U-shaped clamping plate with the help of the shaft pin, and rotates the wing nut, thereby causing the wing nut to press against the U-shaped clamping plate, thus completing the fixed connection between the sealing plate and the pelletizing chamber, improving the sealing performance of the front end of the pelletizing chamber, and preventing cooling water from leaking out through the gap between the sealing plate and the pelletizing chamber.

[0010] Preferably, it also includes a sealing gasket, wherein the sealing plate is provided with a sealing gasket, and the front end of the pelletizing chamber is provided with an annular groove, the annular groove being adapted to the sealing gasket; the sealing plate seals the front end of the pelletizing chamber, the sealing gasket enters the annular groove, and the sealing gasket seals the gap between the pelletizing chamber and the sealing plate, thereby further improving the sealing performance.

[0011] Preferably, the lifting assembly includes an internally threaded tube, a lead screw, and a fixing block. The internally threaded tube is rotatably mounted on the bracket. The lead screw passes through the internally threaded tube and is threadedly connected to it. The top end of the lead screw is fixedly connected to the bottom end of the lifting platform. A fixing block is fixedly fitted on the outside of the internally threaded tube. When the height of the die head and pelletizing chamber needs to be adjusted, the operator rotates the fixing block using a tool, thereby rotating the internally threaded tube. Since the lead screw is fixedly connected to the bottom end of the lifting platform, the height of the lead screw relative to the internally threaded tube is increased, thus achieving the height adjustment of the lifting platform. A locking nut is threaded on the lead screw. After the height of the lifting platform is adjusted, the locking nut is rotated to tighten the internally threaded tube, preventing the lead screw from rotating on its own.

[0012] Preferably, it also includes a handle, and the side wall of the movable seat is provided with a handle; the staff can adjust the position of the movable seat by using the handle to improve the ease of movement.

[0013] Preferably, the device also includes adjustable feet, with a set of adjustable feet provided at each of the four corners of the bottom of the base; the four sets of adjustable feet work together to provide stable support for the device and improve stability.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: During use, the operator adjusts the height of the lifting platform according to the height of the upstream screw extruder using multiple sets of lifting components, so that the die input end is bolted to the output end of the upstream screw extruder, improving the flexibility of operation. Then, the pelletizing component seals the front side of the pelletizing chamber, and the pelletizing component and the pelletizing chamber are locked and fixed by the locking component. The conveying pump delivers cooling water to the inside of the pelletizing chamber through the water conveying component. The cooling water cools the raw material in contact with the die head, and the pelletizing component pellets the cooled raw material. When the cooling water inside the pelletizing chamber is discharged, the raw material particles are also discharged, realizing the flexibility of equipment installation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the first isometric structure of this utility model; Figure 2 This is an exploded structural diagram of the present invention; Figure 3 This is an enlarged structural diagram of the lifting platform and pelletizing chamber, among other structures. Figure 4 yes Figure 3 A partially enlarged structural diagram of section A in the middle; Figure 5 This is an enlarged structural diagram of the motor and pelletizing blade, among other components. Figure 6 This is a schematic diagram of the second isometric structure of this utility model.

[0016] The following are labels in the attached diagram: 1. Base; 2. Bracket; 3. Pelletizing chamber; 4. Support frame; 5. Fixing frame; 6. Water inlet pipe; 7. Water outlet pipe; 8. Fixed seat; 9. Slide rail; 10. Moving seat; 11. Motor; 12. Pelletizing blade; 13. Sealing plate; 14. Shaft pin; 15. Lead screw; 16. U-shaped clamping plate; 17. Wing nut; 18. Sealing gasket; 19. Internally threaded pipe; 20. Lead screw; 21. Fixing block; 22. Handle; 23. Adjustable foot; 24. Lifting platform; 25. Die head. Detailed Implementation

[0017] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0018] Example 1

[0019] like Figures 1 to 6 As shown, an underwater pelletizer of this utility model includes a base 1, a support 2, a pelletizing chamber 3, a lifting platform 24, and a die head 25. Two sets of supports 2 are provided at the top of the base 1. The die head 25 is fixedly installed at the top of the lifting platform 24. The output end of the die head 25 is provided with the pelletizing chamber 3. It also includes a lifting assembly, a pelletizing assembly, a locking assembly, and a water supply assembly. Multiple sets of lifting assemblies are provided between the support 2 and the lifting platform 24. The pelletizing assembly is slidably disposed at the top of the lifting platform 24. A locking assembly is provided between the pelletizing assembly and the pelletizing chamber 3. The locking assembly is used to lock and fix the pelletizing assembly to the pelletizing chamber 3 when sealing it. The water supply assembly is used to input cooling water into the pelletizing chamber 3 and to transport the cut pellets. The water supply assembly includes a support frame 4, a fixing frame 5, an inlet pipe 6, and an outlet pipe 7. The top of the lifting platform 24 is provided with a support frame 4, the outlet pipe 7 is placed on the top of the support frame 4, the outside of the outlet pipe 7 is fitted with a fixing frame 5, and the fixing frame 5 is fixedly installed on the top of the support frame 4. The inlet end of the outlet pipe 7 is connected to the top of the pelletizing chamber 3, and the outlet end of the inlet pipe 6 is connected to the bottom end of the pelletizing chamber 3. The pelletizing assembly includes a fixed base 8, a slide rail 9, a movable base 10, a motor 11, a pelletizing head 12, and a sealing plate 13. The top of the lifting platform 24 is provided with two pairs of fixed bases 8, and each pair of fixed bases 8 is provided with a set of slide rails 9 on its inner side. The movable base 10 is slidably connected to the two sets of slide rails 9. The top of the movable base 10 is fixedly provided with a motor 11 and a sealing plate 13. The output end of the motor 11 passes through the sealing plate 13 and is provided with a pelletizing head 12. The locking assembly includes a shaft pin 14, a lead screw 15, a U-shaped clamping plate 16, and a wing nut 17. The two sets of lead screws 15 are respectively hinged to the sealing plate 13 through the shaft pin 14. A set of U-shaped clamping plates 16 are symmetrically arranged on the outer wall of the pelletizing chamber 3. Each set of lead screws 15 is threadedly connected to a set of wing nuts 17. It also includes a sealing gasket 18, which is provided on the sealing plate 13, and an annular groove is provided at the front end of the pelletizing chamber 3, which is adapted to the sealing gasket 18.

[0020] In this embodiment, during use, the operating movable seat 10 slides on the slide rail 9, thereby allowing the pelletizing head 12 to enter the pelletizing chamber 3 while the sealing plate 13 seals the front end of the pelletizing chamber 3. Then, the locking assembly is operated to lock and fix the sealing plate 13 and the pelletizing chamber 3. The motor 11 is started, causing the pelletizing head 12 to rotate rapidly inside the pelletizing chamber 3, thus pelletizing the raw material extruded into the pelletizing chamber 3 by the screw extruder through the die head 25. When the sealing plate 13 seals the front end of the pelletizing chamber 3, the operator moves the lead screw 15 forward with the cooperation of the shaft pin 14. Insert the U-shaped clamp 16 into the inner side and rotate the wing nut 17 to tighten the wing nut 17 against the U-shaped clamp 16, thereby completing the fixed connection between the sealing plate 13 and the pelletizing chamber 3. The inlet end of the water inlet pipe 6 is connected to the outlet end of the water pump. Start the water pump, and the water pump will allow cooling water to enter the pelletizing chamber 3 through the water inlet pipe 6. The cooling water cools the raw material, and the pelletizing head 12 performs pelletizing operation on the cooled raw material. The cooling water carries the raw material particles out through the outlet pipe 7 to the centrifugal separator. The centrifugal separator separates the raw material particles from the cooling water, and the cooling water enters the cold water tank for cooling and is reused by the water pump.

[0021] Example 2

[0022] like Figures 1 to 6 As shown, an underwater pelletizer of this utility model includes a base 1, a support 2, a pelletizing chamber 3, a lifting platform 24, and a die head 25. Two sets of supports 2 are provided at the top of the base 1. The die head 25 is fixedly installed at the top of the lifting platform 24. The output end of the die head 25 is provided with the pelletizing chamber 3. It also includes a lifting assembly, a pelletizing assembly, a locking assembly, and a water supply assembly. Multiple sets of lifting assemblies are provided between the support 2 and the lifting platform 24. The pelletizing assembly is slidably disposed at the top of the lifting platform 24. A locking assembly is provided between the pelletizing assembly and the pelletizing chamber 3. The locking assembly is used to lock and fix the pelletizing assembly to the pelletizing chamber 3 when sealing it. The water supply assembly is used to input cooling water into the pelletizing chamber 3 and to transport the cut pellets. The water supply assembly includes a support frame 4, a fixing frame 5, an inlet pipe 6, and an outlet pipe 7. The top of the lifting platform 24 is provided with a support frame 4, the outlet pipe 7 is placed on the top of the support frame 4, the outside of the outlet pipe 7 is fitted with a fixing frame 5, and the fixing frame 5 is fixedly installed on the top of the support frame 4. The inlet end of the outlet pipe 7 is connected to the top of the pelletizing chamber 3, and the outlet end of the inlet pipe 6 is connected to the bottom end of the pelletizing chamber 3. The pelletizing assembly includes a fixed base 8, a slide rail 9, a movable base 10, a motor 11, a pelletizing head 12, and a sealing plate 13. The top of the lifting platform 24 is provided with two pairs of fixed bases 8, and each pair of fixed bases 8 is provided with a set of slide rails 9 on its inner side. The movable base 10 is slidably connected to the two sets of slide rails 9. The top of the movable base 10 is fixedly provided with a motor 11 and a sealing plate 13. The output end of the motor 11 passes through the sealing plate 13 and is provided with a pelletizing head 12. The locking assembly includes a shaft pin 14, a lead screw 15, a U-shaped clamping plate 16, and a wing nut 17. The two sets of lead screws 15 are respectively hinged to the sealing plate 13 through the shaft pin 14. A set of U-shaped clamping plates 16 are symmetrically arranged on the outer wall of the pelletizing chamber 3. Each set of lead screws 15 is threadedly connected to a set of wing nuts 17. It also includes a sealing gasket 18, which is provided on the sealing plate 13, and an annular groove is provided at the front end of the pelletizing chamber 3, which is adapted to the sealing gasket 18. The lifting assembly includes an internally threaded tube 19, a lead screw 20, and a fixing block 21. The internally threaded tube 19 is rotatably mounted on the bracket 2. The lead screw 20 passes through the internally threaded tube 19 and is threadedly connected to the internally threaded tube 19. The top end of the lead screw 20 is fixedly connected to the bottom end of the lifting platform 24. The fixing block 21 is fixedly fitted on the outside of the internally threaded tube 19. It also includes a handle 22 and adjustable feet 23. The side wall of the movable seat 10 is provided with a handle 22, and a set of adjustable feet 23 is provided at the four corners of the bottom of the base 1.

[0023] In this embodiment, the operator rotates the fixed block 21 using a tool, thereby rotating the internally threaded tube 19. Since the lead screw 20 is fixedly connected to the bottom of the lifting platform 24, the lead screw 20 is raised relative to the internally threaded tube 19, thus adjusting the height of the lifting platform 24. A locking nut is threaded onto the lead screw 20. After the height of the lifting platform 24 is adjusted, the locking nut is rotated to press against the internally threaded tube 19. The moving seat 10 slides on the slide rail 9, allowing the pelletizing head 12 to enter the pelletizing chamber 3 while the sealing plate 13 seals the front end of the pelletizing chamber 3. Then, the locking assembly is used to lock and fix the sealing plate 13 and the pelletizing chamber 3. The motor 11 is started, causing the pelletizing head 12 to rotate rapidly inside the pelletizing chamber 3, thus... The raw material extruded into the pelletizing chamber 3 through the die 25 of the screw extruder is pelletized. When the sealing plate 13 seals the front end of the pelletizing chamber 3, the operator moves the lead screw 15 into the inner side of the U-shaped clamping plate 16 with the cooperation of the shaft pin 14, and rotates the wing nut 17, so that the wing nut 17 is pressed against the U-shaped clamping plate 16, thereby completing the fixed connection between the sealing plate 13 and the pelletizing chamber 3. The inlet end of the water inlet pipe 6 is connected to the outlet end of the water pump. The water pump is started, and the water pump causes cooling water to enter the pelletizing chamber 3 through the water inlet pipe 6. The cooling water cools the raw material, and the pelletizing head 12 pelletizes the cooled raw material. The cooling water carries the raw material particles and is discharged to the centrifugal separator through the outlet pipe 7. The centrifugal separator separates the raw material particles from the cooling water. The cooling water enters the cold water tank for cooling and is reused by the water pump.

[0024] The main functions achieved by this utility model are: Improve installation flexibility; Reduce material carried by the pelletizing head 12, avoid blockage of the water outlet pipe 7 and clumping of raw materials, and achieve rapid dehydration of raw material particles.

[0025] The underwater pelletizer of this utility model is controlled by a controller for the water pump and motor 11. This application is concerned with protecting the mechanical structure, and the controller is existing technology, so it will not be described again. The pelletizing chamber 3, die head 25 and motor 11 of the underwater pelletizer of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0026] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An underwater pelletizer, comprising a base (1), a support (2), a pelletizing chamber (3), a lifting platform (24), and a die (25), wherein two sets of supports (2) are provided at the top of the base (1), and the die (25) is fixedly installed at the top of the lifting platform (24), and the output end of the die (25) is provided with a pelletizing chamber (3), characterized in that, It also includes a lifting assembly, a pelletizing assembly, a locking assembly and a water supply assembly. Multiple sets of lifting assemblies are provided between the support (2) and the lifting platform (24). The pelletizing assembly is slidably disposed at the top of the lifting platform (24). A locking assembly is provided between the pelletizing assembly and the pelletizing chamber (3). The locking assembly is used to lock and fix the pelletizing assembly to the pelletizing chamber (3) when sealing it. The water supply assembly is used to input cooling water into the pelletizing chamber (3) and to transport the cut particles.

2. The underwater pelletizer as described in claim 1, characterized in that, The water supply assembly includes a support frame (4), a fixing frame (5), an inlet pipe (6), and an outlet pipe (7). The top of the lifting platform (24) is provided with a support frame (4), the outlet pipe (7) is placed on the top of the support frame (4), the outside of the outlet pipe (7) is fitted with a fixing frame (5), the fixing frame (5) is fixedly installed on the top of the support frame (4), the inlet end of the outlet pipe (7) is connected to the top of the pelletizing chamber (3), and the outlet end of the inlet pipe (6) is connected to the bottom end of the pelletizing chamber (3).

3. The underwater pelletizer as described in claim 2, characterized in that, The pelletizing assembly includes a fixed seat (8), a slide rail (9), a movable seat (10), a motor (11), a pelletizing head (12), and a sealing plate (13). The top of the lifting platform (24) is provided with two pairs of fixed seats (8), and each pair of fixed seats (8) is provided with a set of slide rails (9) on its inner side. The movable seat (10) is slidably connected to the two sets of slide rails (9). The top of the movable seat (10) is fixedly provided with a motor (11) and a sealing plate (13). The output end of the motor (11) passes through the sealing plate (13) and is provided with a pelletizing head (12).

4. The underwater pelletizer as described in claim 3, characterized in that, The locking assembly includes a shaft pin (14), a lead screw (15), a U-shaped clamping plate (16), and a wing nut (17). The two sets of lead screws (15) are respectively hinged to the sealing plate (13) through the shaft pin (14). A set of U-shaped clamping plates (16) are symmetrically arranged on the outer wall of the pelletizing chamber (3). Each set of lead screws (15) is threadedly connected to a set of wing nuts (17).

5. An underwater pelletizer as described in claim 3, characterized in that, It also includes a sealing gasket (18), on which the sealing plate (13) is provided with a sealing gasket (18), and an annular groove is provided at the front end of the pelletizing chamber (3), which is adapted to the sealing gasket (18).

6. The underwater pelletizer as described in claim 1, characterized in that, The lifting assembly includes an internally threaded tube (19), a lead screw (20), and a fixing block (21). The internally threaded tube (19) is rotatably mounted on the bracket (2). The lead screw (20) passes through the internally threaded tube (19) and is threadedly connected to the internally threaded tube (19). The top end of the lead screw (20) is fixedly connected to the bottom end of the lifting platform (24). The fixing block (21) is fixedly mounted on the outside of the internally threaded tube (19).

7. An underwater pelletizer as described in claim 3, characterized in that, It also includes a handle (22), which is provided on the side wall of the movable seat (10).

8. An underwater pelletizer as described in claim 1, characterized in that, It also includes adjustable feet (23), and a set of adjustable feet (23) is provided at the four corners of the bottom of the base (1).

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