Granulating device for plastic granulator

Abstract

The utility model relates to a pelletizing device for a plastic pelletizer, which comprises a machine base, the machine base is connected with a translation mechanism, the translation mechanism is used for driving the machine base to move, the machine base is rotatably connected with a driving shaft, one side of the driving shaft is provided with a driving motor, the driving motor is used for driving the driving shaft to rotate, and the driving shaft is connected with a motor. A blade mounting seat is arranged on the side, away from the driving motor, of the driving shaft and comprises a pressure applying part and a connecting part, the connecting part is used for being connected with a blade, and the pressure applying part is used for applying pressure to the blade so that the blade can be tightly attached to the extrusion end of the plastic granulator. The plastic strip pelletizing device has the advantages and effects that extruded plastic strips can be cut more smoothly, and the pelletizing quality and efficiency of the plastic strips are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic granulation, in particular to a granulating device used for a plastic granulator. Background Art

[0002] Plastic recycling and granulation is an important way of renewable energy utilization. After the recycled plastic is heated, it is extruded into plastic strips through a plastic granulator. In order to facilitate the storage and transportation of recycled plastics, the plastic strips need to be pelletized.

[0003] For example, a Chinese patent technology document with announcement number CN220030837U discloses a cooling structure for the pelletizing end of a plastic granulator, including a granulator body, a support seat fixedly installed at the bottom of the pelletizing end of the granulator body, and a material guide trough with a slope-shaped structure distribution is opened at the center of the top of the support seat, and speed reduction strips with an equidistant structure distribution are integrally formed on the bottom inner wall of the material guide trough, and a laying cavity is integrally formed inside the support seat near the speed reduction strip, and a serpentine tube is laid on the top inner wall of the laying cavity.

[0004] In the above technical solution, the coolant inside the liquid storage chamber is transported into the interior of the serpentine tube through the liquid inlet pipe and the liquid outlet pipe, and finally the coolant flows back into the interior of the liquid storage chamber through the reflux pipe. When the coolant flows through the serpentine tube, the plastic particles roll along the guide groove. When the plastic particles roll, the coolant in the serpentine tube can have a good cooling effect on the plastic particles through the speed reduction strip, which effectively avoids the adhesion of the plastic particles due to excessive temperature.

[0005] However, when the extruded plastic strips are pelletized, the plastic strips are mainly pelletized by a rotating blade. However, the plastic strips have a certain toughness after being cooled. Currently, there is a lack of corresponding pressure between the pelletizing blade and the extrusion end of the plastic pelletizer, resulting in the blade not pelletizing the plastic strips smoothly. Summary of the invention

[0006] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a pelletizing device for a plastic pelletizer, which can cut the extruded plastic strips more smoothly and ensure the pelletizing quality and efficiency of the plastic strips.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pelletizing device for a plastic granulator, comprising a machine base, the machine base is connected to a translation mechanism, the translation mechanism is used to drive the machine base to move, a drive shaft is rotatably connected to the machine base, a drive motor is provided on one side of the drive shaft, the drive motor is used to drive the drive shaft to rotate, a blade mounting seat is provided on the side of the drive shaft away from the drive motor, the blade mounting seat comprises a pressure portion and a connecting portion, the connecting portion is used to connect the blade, and the pressure portion is used to apply pressure to the blade so that the blade can be close to the extrusion end of the plastic granulator.

[0008] The utility model is further configured as follows: the pressure-applying part comprises a mounting ring and a guide seat, the guide seat is fixed to the driving shaft, the mounting ring is sleeved and fixed to the outer periphery of the guide seat, a guide groove is provided in the guide seat, a sliding rod adapted to the guide groove is provided in the guide groove, the sliding rod can slide along the direction of the guide groove, a spring is provided between the pressure-applying part and the connecting part, one end of the spring is fixed to the mounting ring, and the other end is connected to the connecting part.

[0009] The utility model is further configured as follows: the connecting portion includes a connecting ring, the connecting ring is sleeved and fixed on the outer periphery of the sliding rod, the spring is located at an end away from the mounting ring and is fixed to the connecting ring, a connecting seat is provided on the outer periphery of the connecting ring, and a guide bevel is provided on the connecting seat for reducing the height in the direction toward the extrusion end, and the guide bevel is used for installing a blade.

[0010] The utility model is further configured as follows: a threaded hole is provided on the guide inclined surface, a connecting waist hole is provided on the blade, and the connecting waist hole and the threaded hole are connected via a locking member.

[0011] The utility model is further configured as follows: the number of the connecting seats is multiple and they are evenly distributed along the circumference.

[0012] The utility model is further configured as follows: the translation mechanism includes a base, a lead screw is rotatably connected to the inner side of the base, the machine base is sleeved on the outer periphery of the lead screw and can form a threaded fit between the two, guide rods are provided on both sides of the lead screw, and the machine base is provided with a guide hole that can be opposite to the guide rod, and a sliding fit is formed between the guide hole and the guide rod, and a rotating handwheel is provided on the outer side of the base, and the rotating handwheel is connected to the lead screw for driving the lead screw to rotate.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] Since a translation mechanism capable of driving the machine base to move is provided, when pelletizing the extruded plastic, the machine base can be driven to move by the translation mechanism, so that the blade can contact the extrusion end of the plastic granulator, and the blade is pressed by the pressure-applying part so that the blade can be close to the extrusion end of the plastic granulator. Therefore, through the action force and reaction force, the blade can be supported accordingly when pelletizing the plastic strips, so as to avoid pelletizing the plastic strips in a suspended state. Therefore, the technical problem of the prior art that the pelletizing of the plastic strips is not smooth enough can be effectively solved, thereby reducing the speed requirement for the drive motor, and making the pelletizing of the plastic strips smoother, thereby ensuring the pelletizing quality and efficiency of the plastic strips. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the top view structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the partial internal structure of the pressure-applying part of the utility model. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0020] like Figures 1 to 3As shown, the utility model discloses a pelletizing device for a plastic granulator, comprising a machine base 1, the machine base 1 is connected with a translation mechanism, the translation mechanism is used to drive the machine base 1 to move, a driving shaft 2 is rotatably connected to the machine base 1, a driving motor 3 is provided on one side of the driving shaft 2, the driving motor 3 is used to drive the driving shaft 2 to rotate, the driving shaft 2 is located at a side away from the driving motor 3 and is provided with a blade mounting seat 4, the blade mounting seat 4 includes a pressure-applying portion and a connecting portion, the connecting portion is used to connect a blade 5, and the pressure-applying portion is used to apply pressure to the blade 5 so that the blade 5 can be close to the extrusion end 100 of the plastic granulator, when the extruded plastic is pressed. When the material is pelletized, the machine base 1 can be driven to move by the translation mechanism, so that the blade 5 can contact the extrusion end 100 of the plastic granulator, and the blade 5 is pressed by the pressure part to make the blade 5 close to the extrusion end 100 of the plastic granulator. Therefore, through the action force and reaction force, the blade 5 can be supported accordingly when the blade 5 pelletizes the plastic strips, so as to avoid the blade 5 pelletizing the plastic strips in a suspended state, thereby reducing the speed requirement of the drive motor 3, and making the pelletizing of the plastic strips smoother, thereby ensuring the pelletizing quality and efficiency of the plastic strips.

[0021] In this embodiment, the specific structure of the pressure-applying portion includes a mounting ring 411 and a guide seat 412. The guide seat 412 is fixed to the drive shaft 2. The mounting ring 411 is fixed to the outer periphery of the guide seat 412. A guide groove 412a is provided in the guide seat 412. A sliding rod 413 adapted to the guide groove 412a is provided in the guide groove 412a. The sliding rod 413 can slide along the direction of the guide groove 412a. A spring 414 is provided between the pressure-applying portion and the connecting portion. One end of the spring 414 is fixed to the mounting ring 411, and the other end is connected to the connecting portion. When the translation mechanism drives the machine base 1 to move so that the blade 5 contacts the extrusion end 100 of the plastic granulator, the sliding rod 413 can be pushed to slide toward the guide groove 412a to squeeze the spring 414. The spring 414 can act on the blade 5 due to the force generated, so that the blade 5 can be closely attached to the extrusion end 100 of the plastic granulator.

[0022] In this embodiment, the specific structure of the connecting part includes a connecting ring 421, which is fixedly mounted on the outer periphery of the sliding rod 413, and the spring 414 is located at an end away from the mounting ring 411 and fixed to the connecting ring 421. A connecting seat 422 is provided on the outer periphery of the connecting ring 421, and a guide slope 422a is provided on the connecting seat 422, the height of which is reduced in the direction toward the extrusion end 100. The guide slope 422a is used to install the blade 5. Through the provided guide slope 422a, the blade 5 can be guided toward the extrusion end 100 of the plastic granulator after the blade 5 is installed, thereby facilitating the contact between the blade 5 and the extrusion end 100 of the plastic granulator.

[0023] In this embodiment, a threaded hole is provided on the guiding bevel 422a, and a connecting waist hole 51 is provided on the blade 5. The connecting waist hole 51 and the threaded hole are connected by a locking member 6. Through the provided threaded hole, a locking member 6 that forms a threaded match with the threaded hole, such as a bolt, can be used to achieve a detachable connection between the blade 5 and the guiding bevel 422a, so as to facilitate the replacement of the blade 5. That is, after the bolt is inserted into the connecting waist hole 51, the blade 5 and the guiding bevel 422a can be fixed by screwing it into the threaded hole. Similarly, the blade 5 and the guiding bevel 422a can be disassembled by unscrewing the bolt out of the threaded hole. In addition, the setting of the connecting waist hole 51 facilitates the adjustment of the distance between the blade 5 and the extrusion end 100 of the plastic granulator when the blade 5 is installed, so as to facilitate the close contact between the blade 5 and the extrusion end 100 of the plastic granulator.

[0024] In this embodiment, the connecting seats 422 are further provided in plurality and evenly distributed along the circumference, so that a plurality of blades 5 can be connected, thereby improving the pelletizing efficiency of the plastic strips.

[0025] The cam 73 is provided on both sides of the screw 72, and a guide hole which can be opposite to the guide rod 73 is provided on the cam 1, and a sliding fit is formed between the guide hole and the guide rod 73; a rotating hand wheel 74 is provided on the outer side of the cam 71, and the rotating hand wheel 74 is connected to the screw 72 for driving the screw 72 to rotate; when it is necessary to move the cam 1, the screw 72 is driven to rotate by rotating the hand wheel 74, so that the cam 1 which is mounted on the outer periphery of the screw 72 and forms a threaded fit can move along the direction of the screw 72 under the guidance of the guide rod 73, so that the distance between the blade 5 and the extrusion end 100 of the plastic granulator can be adjusted, thereby ensuring that the pressure applying part applies appropriate pressure to the blade 5.

[0026] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A pelletizing device for a plastic pelletizer, characterized in that: It includes a machine base, which is connected to a translation mechanism, which is used to drive the machine base to move, and a driving shaft is rotatably connected to the machine base. A driving motor is provided on one side of the driving shaft, and the driving motor is used to drive the driving shaft to rotate. A blade mounting seat is provided on the side of the driving shaft away from the driving motor, and the blade mounting seat includes a pressure portion and a connecting portion, the connecting portion is used to connect the blade, and the pressure portion is used to apply pressure to the blade so that the blade can be close to the extrusion end of the plastic granulator.

2. A pelletizing device for a plastic pelletizer according to claim 1, characterized in that: The pressure-applying part includes a mounting ring and a guide seat, wherein the guide seat is fixed to the driving shaft, and the mounting ring is fixed to the outer periphery of the guide seat. A guide groove is provided in the guide seat, and a sliding rod matched with the guide groove is provided in the guide groove. The sliding rod can slide along the direction of the guide groove. A spring is provided between the pressure-applying part and the connecting part, and one end of the spring is fixed to the mounting ring, and the other end is connected to the connecting part.

3. A pelletizing device for a plastic pelletizer according to claim 2, characterized in that: The connecting part includes a connecting ring, which is fixed to the outer periphery of the sliding rod. The spring is located at an end away from the mounting ring and is fixed to the connecting ring. A connecting seat is provided on the outer periphery of the connecting ring. A guiding bevel whose height decreases gradually along the direction toward the extrusion end is provided on the connecting seat. The guiding bevel is used to install a blade.

4. A pelletizing device for a plastic pelletizer according to claim 3, characterized in that: The guide slope is provided with a threaded hole, the blade is provided with a connecting waist hole, and the connecting waist hole and the threaded hole are connected by a locking piece.

5. A pelletizing device for a plastic pelletizer according to claim 3, characterized in that: There are multiple connecting seats, which are evenly distributed along the circumference.

6. A pelletizing device for a plastic pelletizer according to claim 1, characterized in that: The translation mechanism includes a base, a lead screw is rotatably connected to the inner side of the base, the machine base is sleeved on the outer periphery of the lead screw and can form a threaded fit between the two, guide rods are provided on both sides of the lead screw, and a guide hole that can be opposite to the guide rod is provided on the machine base, and a sliding fit is formed between the guide hole and the guide rod, and a rotating handwheel is provided on the outer side of the base, and the rotating handwheel is connected to the lead screw for driving the lead screw to rotate.

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