Granulation die head

Abstract

The utility model discloses a pelletizing die head which comprises a mounting seat, a motor, a transmission shaft, a connecting pipe, a die head, a water inlet pipe and a water outlet pipe, the motor is fixedly mounted on the mounting seat, one end of the transmission shaft is rotationally connected with the motor, the other end of the transmission shaft is rotationally connected with the connecting pipe, the die head is arranged on the connecting pipe in a sleeving manner and synchronously rotates with the connecting pipe when the connecting pipe rotates, a plurality of cutters are arranged in the die head, and the cutters are arranged on the die head. The cutter is accommodated in the connecting pipe, and the water inlet pipe and the water outlet pipe are respectively communicated with the connecting pipe; strip-shaped plastic to be cut is placed in the connecting pipe, the motor drives the die head to rotate through the connecting pipe, the strip-shaped plastic in the connecting pipe is cut through the cutter on the die head, the strip-shaped plastic is cut into plastic particles, meanwhile, ice water is injected through the water inlet pipe, the plastic particles are synchronously cooled, and cutting and cooling of the plastic particles are synchronously completed. And the processing efficiency of the plastic particles is improved, and the processing time is saved.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic pellet recycling and processing, specifically a pelletizing die. Background Technology

[0002] Plastic granules refer to granular plastics, generally classified into more than 200 types, with further subdivisions reaching thousands. Common types of plastic granules include general-purpose plastics, engineering plastics, and specialty plastics. General-purpose plastics include: polypropylene, polyethylene, polyvinyl chloride, polystyrene, polyester, and polyurethane.

[0003] Currently, plastic pellets are typically produced by drawing plastic pellets into strips, then cutting them with a cutter, and finally cooling them. However, this process requires cutting with a cutter assembly before cooling the pellets, making the process complex, increasing processing time, and reducing processing efficiency. Utility Model Content

[0004] Therefore, it is necessary to provide a pelletizing die head. This can solve the problem of cutting plastics that cannot be completed quickly.

[0005] A pelletizing die head includes a mounting base, a motor, a drive shaft, a connecting pipe, a die head, a water inlet pipe, and a water outlet pipe;

[0006] The motor is fixedly mounted on the mounting base. One end of the drive shaft is rotatably connected to the motor, and the other end is rotatably connected to the connecting pipe. The mold head is sleeved on the connecting pipe and rotates synchronously with the connecting pipe when the connecting pipe rotates. The mold head has several cutters inside, and the cutters are housed inside the connecting pipe. The water inlet pipe and the water outlet pipe are respectively connected to the connecting pipe.

[0007] In one embodiment, the array of several cutting blades is disposed on the inner layer of the die head.

[0008] In one embodiment, the die head has a plurality of cutter mounting slots for accommodating the cutter, and the cutter is fixed on the cutter mounting slot by a nut.

[0009] In one embodiment, the pelletizing die head further includes a cold insulation tube, which is sleeved at a predetermined position on the connecting tube.

[0010] In one embodiment, the cold insulation tube includes an outer layer, a cold insulation layer, and a sealing layer, wherein the cold insulation layer is disposed between the outer layer and the sealing layer, and the cold insulation layer is made of a cold insulation material.

[0011] In one embodiment, the cold-insulating material includes one of polyurethane foam, polyurethane composite material, glass fiber, polypropylene, polyvinyl chloride, foam plastic, cryogel, and nanomaterials.

[0012] In one embodiment, the mounting base includes a top plate, a bottom plate, and a plurality of support columns, with both ends of the plurality of support columns fixedly connected to the top plate and the bottom plate, respectively, and the motor fixedly mounted on the top plate.

[0013] In one embodiment, the top plate has a motor limiting groove for mounting the motor.

[0014] The aforementioned pelletizing die head, through the coordinated arrangement of a motor, drive shaft, connecting pipe, die head, cutter, water inlet pipe, and water outlet pipe, places the strip-shaped plastic to be cut inside the connecting pipe. The motor drives the die head to rotate through the connecting pipe, and the cutter on the die head cuts the strip-shaped plastic inside the connecting pipe into plastic pellets. At the same time, ice water is injected through the water inlet pipe to cool the plastic pellets simultaneously. This simultaneous cutting and cooling of the plastic pellets improves the processing efficiency of the plastic pellets and saves processing time. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the assembly structure of a pelletizing die head according to an embodiment of the present invention;

[0016] Figure 2 for Figure 1 A cross-sectional view of the pelletizing die head according to an embodiment of the present invention;

[0017] Figure 3 for Figure 1 A cross-sectional view of the cold insulation tube of a pelletizing die head according to an embodiment of the present invention; Detailed Implementation

[0018] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0019] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediary component present. Conversely, when a component is said to be "directly" connected to another component, there is no intermediary component.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] like Figure 1 As shown, a pelletizing die head includes a mounting base 1, a motor 2, a drive shaft 3, a connecting pipe 4, a die head 5, a water inlet pipe 6, and a water outlet pipe 7;

[0022] The motor 2 is fixedly installed on the mounting base 1. One end of the transmission shaft 3 is rotatably connected to the motor 2, and the other end is rotatably connected to the connecting pipe 4. The mold head 5 is sleeved on the connecting pipe 4 and rotates synchronously with the connecting pipe 4 when the connecting pipe 4 rotates. The mold head 5 has a plurality of cutters 8 inside, and the cutters 8 are housed in the connecting pipe 4. The water inlet pipe 6 and the water outlet pipe 7 are respectively connected to the connecting pipe 4.

[0023] The mounting base 1 includes a top plate 11, a bottom plate 12, and multiple support columns 13. Both ends of the multiple support columns 13 are fixedly connected to the top plate 11 and the bottom plate 12, respectively. The motor 2 is fixedly mounted on the top plate 11, which has a motor positioning groove for mounting the motor 2. The motor positioning groove effectively limits the installation position of the motor 2.

[0024] like Figure 2 As shown, the array of several cutters 8 is arranged on the inner layer of the die head 5. The die head 5 has several cutter mounting slots 51 for accommodating the cutters 8, and the cutters 8 are fixed in the cutter mounting slots 51 by nuts. By fixing the cutters 8 in the cutter mounting slots 51 with nuts, when it is necessary to replace the cutters 8, the nuts can be removed to complete the replacement, making it simpler and more convenient. The water inlet pipe 6 is connected to the water storage device for injecting ice water, and the water outlet pipe 7 discharges the ice water in the connecting pipe 4.

[0025] Typically, strip-shaped plastics are extruded from the extruder's stencil, which is housed within the connecting pipe 4, facilitating the cutting blade 8 to cut the plastic strips. When processing is required, the plastic strips are placed into the inner space of the connecting pipe 4, and the motor 2 is started. The motor 2 drives the drive shaft 3 to rotate, which in turn drives the connecting pipe 4 to rotate. The connecting pipe 4 then drives the die head 5 to rotate, which in turn drives the cutting blade 8 to rotate. The cutting blade 8 cuts the plastic strips into granules. Simultaneously, the plastic granules are cooled through the water inlet pipe 6, and the cooling water is discharged through the water outlet pipe 7.

[0026] In this way, the pelletizing die head, through the coordinated arrangement of motor 2, drive shaft 3, connecting pipe 4, die head 5, cutter 8, water inlet pipe 6, and water outlet pipe 7, places the strip of plastic to be cut inside the connecting pipe 4. Motor 2 drives the die head 5 to rotate through the connecting pipe 4, and the cutter 8 on the die head 5 cuts the strip of plastic inside the connecting pipe 4 into plastic pellets. At the same time, ice water is injected through the water inlet pipe 6 to cool the plastic pellets simultaneously. The cutting and cooling of plastic pellets are completed in a synchronized manner, which improves the processing efficiency of plastic pellets and saves processing time.

[0027] like Figure 3 As shown, in one embodiment, to prevent the cold air from the injected ice water from easily evaporating, the pelletizing die head further includes a cold insulation tube 9. The cold insulation tube 9 is sleeved at a predetermined position on the connecting pipe 4. The cold insulation tube 9 includes an outer layer 91, a cold insulation layer 92, and a sealing layer 93. The cold insulation layer 92 is housed between the outer layer 91 and the sealing layer 93. The cold insulation layer 92 is made of a cold insulation material. The cold insulation material includes one of polyurethane foam, polyurethane composite material, glass fiber, polypropylene, polyvinyl chloride, foam plastic, cryogel, and nanomaterials.

[0028] Polyurethane foam possesses excellent thermal insulation properties and a low thermal conductivity, effectively preventing heat conduction within pipes. It also boasts high density and strength, providing excellent support and protection, while exhibiting corrosion resistance and abrasion resistance, making it suitable for harsh environments. Polyurethane composites, on the other hand, are made by adding other materials, such as fire retardants or UV stabilizers, to polyurethane foam to enhance its flame retardancy or weather resistance, meeting specific requirements.

[0029] Fiberglass possesses excellent thermal insulation and corrosion resistance, making it suitable for some specialized industrial environments. Polypropylene and polyvinyl chloride are common plastic materials with good insulation properties and chemical resistance, and can be customized to meet specific pipeline requirements. Foamed plastics are among the most common cold insulation materials, mainly made of materials such as polystyrene (EPS) or polyurethane (PU). They are lightweight, have low thermal conductivity, and are waterproof and moisture-proof, making them widely used in the food, pharmaceutical, and cosmetic industries. Cryogels are substances that absorb large amounts of moisture and release low temperatures, and can be used in the food, pharmaceutical, and cosmetic industries. Nanomaterials such as copper oxide, aluminum hydroxide, and carbon nanotubes are also being used in the development of high-efficiency cold insulation materials.

[0030] In this way, by fitting the cold insulation pipe 9 into the preset position of the connecting pipe 4, the low temperature effect inside the connecting pipe 4 can be guaranteed as much as possible, the evaporation of cold air inside the connecting pipe 4 can be reduced, the cooling effect of the plastic particles inside the connecting pipe 4 can be guaranteed, and energy can be saved at the same time.

[0031] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A pelletizing die head, characterized in that: Includes mounting base, motor, drive shaft, connecting pipe, mold head, inlet pipe and outlet pipe; The motor is fixedly mounted on the mounting base. One end of the drive shaft is rotatably connected to the motor, and the other end is rotatably connected to the connecting pipe. The mold head is sleeved on the connecting pipe and rotates synchronously with the connecting pipe when the connecting pipe rotates. The mold head has several cutters inside, and the cutters are housed inside the connecting pipe. The water inlet pipe and the water outlet pipe are respectively connected to the connecting pipe.

2. The pelletizing die head according to claim 1, characterized in that: The array of several cutting blades is disposed on the inner layer of the die head.

3. A pelletizing die head according to claim 1, characterized in that: The die head has several cutter mounting slots for accommodating the cutter, and the cutter is fixed on the cutter mounting slot by a nut.

4. A pelletizing die head according to claim 1, characterized in that: The pelletizing die also includes a cold insulation tube, which is sleeved at a predetermined position on the connecting tube.

5. A pelletizing die head according to claim 4, characterized in that: The cold insulation pipe includes an outer layer, a cold insulation layer, and a sealing layer. The cold insulation layer is housed between the outer layer and the sealing layer and is made of a cold insulation material.

6. A pelletizing die head according to claim 5, characterized in that: The cold insulation material includes one of the following: polyurethane foam, polyurethane composite material, glass fiber, polypropylene, polyvinyl chloride, foam plastic, cryogel, and nanomaterials.

7. A pelletizing die head according to claim 1, characterized in that: The mounting base includes a top plate, a bottom plate, and multiple support columns. The two ends of the multiple support columns are fixedly connected to the top plate and the bottom plate, respectively, and the motor is fixedly mounted on the top plate.

8. A pelletizing die head according to claim 7, characterized in that: The top plate has a motor limiting groove for mounting the motor.

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