A plastic processing pelletizer

Abstract

The utility model relates to the technical field of plastics processing solves the problem that the granule concentrates the unloading in a place during the period of plastics pelletizing, and the certain temperature is produced when the plastics cut, and the certain viscosity has on the surface of plastics granule, and the problem that the stacking granule is accumulated in the unloading place, influences the cutting plastics pelletizing to carry out. Specifically for a kind of granulator for plastics processing, including square frame, the back surface both sides edge symmetry of square frame is fixedly connected with connecting plate, the front and back of square frame are respectively provided with feed slot and discharge slot, one side fixedly connected with support plate is arranged in the bottom of square frame, vibration assembly is arranged in the front of square frame and below discharge slot;The vibration assembly includes lower U type board, the spring is fixedly connected in the inner bottom surface four corners of lower U type board, the top of spring is fixedly connected with upper U type board, servo motor is arranged in the bottom middle part of upper U type board, the output of servo motor is fixedly connected with eccentric shaft wheel.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing technology, specifically to a pelletizer for plastic processing. Background Technology

[0002] A pelletizer for processing modified plastics, disclosed in CN220146407U, includes a protective cover. An electromechanical box is provided on the right side of the protective cover. Movable grooves are provided on the left and right sides of the protective cover. A rotating shaft is installed between the two movable grooves. A knife handle is provided on the outside of the rotating shaft. A blade is provided on the outside of the knife handle. The blade is locked to the knife handle by fasteners. A positioning plate is provided on the inner bottom of the protective cover. A guide groove is provided on the top of the positioning plate. A pressure roller is provided on the top of the positioning plate. A support leg is fixedly connected to the bottom of the protective cover.

[0003] By reducing or increasing the rotational speed of the shaft, the size of the particles is changed, and all the blades are at the same angle. When cutting, the particles will only move in one direction, preventing splashing and making collection convenient.

[0004] However, during plastic pelleting, the pellets are concentrated in one place and the plastic generates a certain temperature during cutting. The surface of the plastic pellets is also sticky, causing the pellets to accumulate at the feeding point, which affects the cutting of plastic pellets. This method is not very efficient for plastic pelleting. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a plastic pelletizer that solves the problems of concentrated pellet feeding through one point during plastic pelletizing, the heat generated during plastic cutting, and the stickiness of the plastic pellet surface, which causes the pellets to accumulate at the feeding point and affect the plastic pelletizing process.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a plastic pelletizer, comprising a square frame, with connecting plates symmetrically fixedly connected to the two sides of the back of the square frame, a feed chute and a discharge chute respectively opened on the front and back of the square frame, a support plate fixedly connected to one side of the bottom of the square frame, and a vibration assembly arranged on the front of the square frame below the discharge chute; the vibration assembly includes a lower U-shaped plate, with springs fixedly connected to the four corners of the inner bottom surface of the lower U-shaped plate, an upper U-shaped plate fixedly connected to the top of the springs, a servo motor arranged in the middle of the bottom of the upper U-shaped plate, an eccentric shaft wheel fixedly connected to the output end of the servo motor, and a protective box sleeved on the surface of the eccentric shaft wheel.

[0007] In one specific embodiment, a drive motor is fixedly connected to the top of the support plate, and the output end of the drive motor is fixedly connected to a cutting shaft cylinder through the side of the square frame. Several cutting blades are arranged around the surface of the cutting shaft cylinder.

[0008] In one specific embodiment, a guide shaft cylinder is movably connected to one end of the connecting plate, and the surface of the guide shaft cylinder is provided with a plurality of grooves adapted to the plastic strip at equal intervals from left to right.

[0009] In a specific embodiment, limiting holes are provided on both sides of the lower U-shaped plate, and limiting rods are provided on both sides of the upper U-shaped plate. The limiting rods are sleeved inside the limiting holes and form a sliding fit with the limiting holes.

[0010] In one specific embodiment, the output shaft of the servo motor is coaxial with the rotation axis of the eccentric wheel, and the eccentricity of the eccentric wheel is greater than the compression stroke of the spring.

[0011] In one specific embodiment, the cutting blades are equidistantly distributed along the circumference of the cutting shaft cylinder, and the cutting edge direction of the cutting blades is perpendicular to the feeding direction of the plastic strip.

[0012] Compared with the prior art, this utility model provides a pelletizer for plastic processing, which has the following features:

[0013] Beneficial effects:

[0014] In the technical solution disclosed in this utility model, the linkage design of the servo motor and the eccentric shaft wheel of the vibration component realizes the anti-clogging function of plastic particles. The servo motor drives the eccentric shaft wheel to rotate and generate periodic vibration, which drives the upper U-shaped plate to vibrate up and down in the lower U-shaped plate through the spring, so that the accumulated plastic particles are dispersed and slide off, solving the problem of high temperature plastic particles adhering and accumulating, and improving the feeding efficiency.

[0015] The sliding fit design of the limiting rod and the limiting hole in this invention achieves controllability of vibration amplitude. The limiting rod slides within the limiting hole to restrict the lateral displacement of the upper U-shaped plate, preventing excessive vibration amplitude from causing structural damage, solving the problem of uncontrolled vibration, and ensuring the stability of equipment operation. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

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

[0018] Figure 2 This is a schematic diagram of the square frame structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the vibration component structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the cutting shaft cylinder structure of this utility model.

[0021] In the diagram: 1. Square frame; 2. Connecting plate; 3. Feed chute; 4. Discharge chute; 5. Support plate; 6. Vibration assembly; 61. Lower U-shaped plate; 62. Spring; 63. Upper U-shaped plate; 64. Servo motor; 65. Eccentric shaft wheel; 66. Protective box; 7. Drive motor; 8. Cutting shaft cylinder; 9. Cutting blade; 10. Guide shaft cylinder; 11. Groove; 12. Limiting hole; 13. Limiting rod. Detailed Implementation

[0022] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0023] Figures 1-4 As an embodiment of the present invention, a plastic pelletizer includes a square frame 1, with connecting plates 2 symmetrically fixedly connected to the two sides of the back side of the square frame 1, a feeding chute 3 and a discharging chute 4 respectively opened on the front and back sides of the square frame 1, a support plate 5 fixedly connected to one side of the bottom of the square frame 1, and a vibration component 6 arranged on the front side of the square frame 1 and below the discharging chute 4.

[0024] The specific problem addressed in this embodiment is: during plastic pelletizing, pellets are concentrated in one feeding point, and the plastic generates a certain temperature during cutting, causing the surface of the plastic pellets to become sticky, leading to pellet accumulation at the feeding point and affecting the cutting process. This invention achieves an anti-clogging function for plastic pellets through the linkage design of the servo motor 64 and the eccentric shaft wheel 65 in the vibration component 6. The servo motor 64 drives the eccentric shaft wheel 65 to rotate, generating periodic vibration, which in turn causes the upper U-shaped plate 63 to vibrate up and down within the lower U-shaped plate 61 via the spring 62. This disperses and causes the accumulated plastic pellets to slide off, solving the problem of high-temperature plastic pellet adhesion and accumulation, and improving feeding efficiency.

[0025] The vibration assembly 6 includes a lower U-shaped plate 61. Springs 62 are fixedly connected to the four corners of the bottom surface of the lower U-shaped plate 61. An upper U-shaped plate 63 is fixedly connected to the top of the springs 62. A servo motor 64 is located in the middle of the bottom of the upper U-shaped plate 63. An eccentric wheel 65 is fixedly connected to the output end of the servo motor 64. A protective box 66 is fitted onto the surface of the eccentric wheel 65. In this specific embodiment, the plastic strip enters through the feed chute 3 of the square frame 1. After the servo motor 64 starts, it drives the eccentric wheel 65 to rotate. The eccentric mass of the eccentric wheel 65 generates a periodic centrifugal force, which drives the upper U-shaped plate 63 to vibrate up and down inside the lower U-shaped plate 61 through the springs 62, causing the accumulated plastic particles to disperse and slide off. The protective box 66 encloses the eccentric wheel 65 to prevent interference from external foreign objects. Vibration prevents clogging and improves feeding efficiency.

[0026] In this specific embodiment, a drive motor 7 is fixedly connected to the top of the support plate 5, and the output end of the drive motor 7 is fixedly connected to the cutting shaft cylinder 8 through the side of the square frame 1. Several cutting blades 9 are arranged around the surface of the cutting shaft cylinder 8.

[0027] After the drive motor 7 starts, it drives the cutting shaft cylinder 8 to rotate at high speed. The cutting blade 9 rotates with the cutting shaft cylinder 8 to continuously cut the plastic strip passing through the feed chute 3. The cut plastic granules are discharged from the discharge chute 4. The circumferentially evenly distributed cutting blades 9 ensure uniform particle size and high-efficiency cutting improves production efficiency.

[0028] In this specific embodiment, a guide shaft cylinder 10 is movably connected to one end of the connecting plate 2, and a plurality of grooves 11 adapted to the plastic strip are equally spaced from left to right on the surface of the guide shaft cylinder 10.

[0029] The plastic strip is embedded in the groove 11 on the surface of the guide shaft cylinder 10. The guide shaft cylinder 10 is movably connected to adjust the angle through the connecting plate 2, so that the plastic strip is equidistantly arranged along the groove 11 and enters the cutting area, avoiding uneven cutting caused by feeding deviation. The guide groove 11 ensures uniform feeding.

[0030] In this specific embodiment, limit holes 12 are provided on both sides of the lower U-shaped plate 61, and limit rods 13 are provided on both sides of the upper U-shaped plate 63. The limit rods 13 are sleeved inside the limit holes 12 and form a sliding fit with the limit holes 12.

[0031] When the upper U-shaped plate 63 vibrates, the limiting rods 13 on both sides slide within the limiting holes 12 of the lower U-shaped plate 61, limiting the lateral displacement of the upper U-shaped plate 63. The compression stroke of the spring 62 matches the depth of the limiting hole 12 to prevent the vibration from exceeding the range and causing structural deformation. The limiting structure ensures vibration stability.

[0032] In this specific embodiment, the output shaft of the servo motor 64 is coaxially arranged with the rotation axis of the eccentric wheel 65, and the eccentricity of the eccentric wheel 65 is greater than the compression stroke of the spring 62.

[0033] The output shaft of the servo motor 64 rotates coaxially with the eccentric wheel 65. The eccentricity of the eccentric wheel 65 is designed to be greater than the maximum compression stroke of the spring 62, ensuring that the vibration energy is fully transmitted to the upper U-shaped plate 63, enhancing the effect of vibration to disperse plastic particles. The optimized eccentricity enhances the vibration intensity.

[0034] In this specific embodiment, the cutting blades 9 are evenly distributed along the circumference of the cutting shaft cylinder 8, and the cutting edge direction of the cutting blades 9 is perpendicular to the feeding direction of the plastic strip.

[0035] The cutting edge of the cutting blade 9 is perpendicular to the feeding direction of the plastic strip. When the cutting cylinder 8 rotates, the cutting blade 9 cuts into the plastic strip vertically to form a neat cut surface. The circumferentially equidistant cutting blades 9 achieve continuous and efficient cutting, which improves production efficiency.

[0036] Working principle: Plastic strips are equidistantly arranged in the grooves 11 on the surface of the guide shaft cylinder 10 and enter the feeding groove 3 of the square frame 1. The drive motor 7 drives the cutting shaft cylinder 8 to drive the circumferentially equidistant cutting blades 9 to rotate at high speed to cut the plastic strips. After being granulated, the plastic strips fall from the discharge groove 4 onto the surface of the upper U-shaped plate 63. The servo motor 64 drives the eccentric shaft wheel 65 to rotate and generate centrifugal force, which causes the upper U-shaped plate 63 to vibrate up and down in the lower U-shaped plate 61 through the spring 62. The limiting rod 13 slides in the limiting hole 12 to limit the lateral displacement. The vibration disperses the accumulated plastic particles to avoid blockage. The protective box 66 wraps the eccentric shaft wheel 65 to ensure safe operation. After being vibrated, the granules slide down from the discharge groove 4 to complete continuous production.

[0037] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0038] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pelletizer for plastic processing, comprising a square frame (1), characterized in that: The square frame (1) has connecting plates (2) symmetrically fixedly connected to the two sides of the back side. The square frame (1) has a feed chute (3) and a discharge chute (4) respectively on the front and back sides. The square frame (1) has a support plate (5) fixedly connected to one side of the bottom. The square frame (1) has a vibration component (6) on the front side and below the discharge chute (4). The vibration assembly (6) includes a lower U-shaped plate (61), with springs (62) fixedly connected to the four corners of the bottom surface of the lower U-shaped plate (61), an upper U-shaped plate (63) fixedly connected to the top of the springs (62), a servo motor (64) provided in the middle of the bottom of the upper U-shaped plate (63), an eccentric shaft wheel (65) fixedly connected to the output end of the servo motor (64), and a protective box (66) sleeved on the surface of the eccentric shaft wheel (65).

2. The pelletizer for plastic processing according to claim 1, characterized in that: The top of the support plate (5) is fixedly connected to a drive motor (7), and the output end of the drive motor (7) is fixedly connected to a cutting cylinder (8) through the side of the square frame (1). Several cutting blades (9) are arranged around the surface of the cutting cylinder (8).

3. A pelletizer for plastic processing according to claim 1, characterized in that: One end of the connecting plate (2) is movably connected to a guide shaft cylinder (10), and the surface of the guide shaft cylinder (10) is provided with a number of grooves (11) that are adapted to the plastic strips, which are equidistantly arranged from left to right.

4. A pelletizer for plastic processing according to claim 1, characterized in that: Limiting holes (12) are provided on both sides of the lower U-shaped plate (61), and limiting rods (13) are provided on both sides of the upper U-shaped plate (63). The limiting rods (13) are sleeved inside the limiting holes (12) and form a sliding fit with the limiting holes (12).

5. A pelletizer for plastic processing according to claim 1, characterized in that: The output shaft of the servo motor (64) is coaxial with the rotation axis of the eccentric wheel (65), and the eccentricity of the eccentric wheel (65) is greater than the compression stroke of the spring (62).

6. A pelletizer for plastic processing according to claim 2, characterized in that: The cutting blades (9) are equidistantly distributed along the circumference of the cutting shaft cylinder (8), and the cutting edge direction of the cutting blades (9) is perpendicular to the feeding direction of the plastic strip.

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