A cutting device of a plastic pellet cutting machine

Abstract

This utility model relates to the field of plastic processing technology and discloses a cutting device for a plastic pelletizer. The device includes a base, with a first disc on one side of the upper end of the base. Multiple cutting components are evenly distributed on the outer wall of the first disc. Each cutting component includes a connecting rod on one side of the outer wall of the first disc. A mounting plate is provided at the upper end of the connecting rod, and two sets of symmetrical adjustment grooves are formed at the upper and lower ends of the mounting plate. By sliding the mounting plate along the adjustment rod and the adjustment groove, the distance between the cutter and the first disc can be adjusted. After adjusting the cutter to a suitable position according to production needs, a limiting bolt is screwed into the corresponding limiting hole to fix the position of the mounting plate and the cutter. By adjusting the position of the cutter, the factory can produce plastic pellets of different sizes to meet diverse production requirements.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing technology, and in particular to a cutting device for a plastic pelletizer. Background Technology

[0002] In the field of plastics processing, plastic rods are widely used as a basic raw material. In the early days, plastic rods were mostly used directly in long strips for the production of simple products, but this had many limitations. Long plastic rods took up a lot of space when stored, had high transportation costs, and were difficult to evenly feed into various molding equipment in subsequent processing, affecting production efficiency and product quality. As the industry's requirements for product precision and performance increased, as well as the demand for large-scale industrial production, people began to explore cutting plastic rods into suitable shapes. Cut plastic is easier to mix with other raw materials and additives, which is conducive to adjusting the properties of plastic and meeting the customized needs of different products, providing strong support for the diversification and refinement of plastic products.

[0003] Existing plastic rod pelletizing devices lack flexible adjustment mechanisms, making it inconvenient to adjust the cutter. Furthermore, the cutting process lacks continuity, making it impossible to adjust the size of the cut plastic pellets and thus failing to meet diverse production needs. Utility Model Content

[0004] Given that existing plastic rod pelletizing devices lack a flexible adjustment mechanism, are inconvenient to adjust the cutter, lack continuity in the cutting process, and cannot adjust the size of the cut plastic pellets, making it difficult to meet diverse production needs, this utility model is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a cutting device for a plastic pelletizer, comprising a base, a first disc on one side of the upper end of the base, a plurality of cutting components evenly arranged on the outer wall of the first disc, the cutting components including a connecting rod on one side of the outer wall of the first disc, a mounting plate on the upper end of the connecting rod, two sets of symmetrical adjustment grooves on the upper and lower ends of the mounting plate, an adjustment rod inserted in the adjustment groove, a limit bolt threaded into the upper and lower ends of the adjustment rod, a plurality of limit holes cooperating with the limit bolts evenly arranged on the outer wall of the upper and lower ends of the mounting plate, a cutting blade fixedly arranged on one side of the outer wall of the mounting plate, a rotating rod in the middle of the first disc, a motor fixedly arranged on the upper end of the base, a ball screw at the output end of the motor, two sets of symmetrical ball screw sleeves sleeved on the outer wall of the ball screw, a second disc and a third disc respectively arranged on the upper ends of the two sets of ball screw sleeves.

[0006] In a preferred embodiment of the cutting device of the plastic pelletizer of this utility model, the connecting rod and the outer wall of the rotating rod are fixedly connected, and the rotating rod and the middle end of the first disc are rotatably connected.

[0007] In a preferred embodiment of the cutting device of the plastic pelletizer of this utility model, the adjusting groove gradually moves towards the outer wall of the first disc from the end away from the cutting blade to the end near the cutting blade, the adjusting rod is movably inserted in the adjusting groove, and the end of the adjusting rod away from the limiting bolt is fixedly connected to the upper end of the connecting rod.

[0008] As a preferred embodiment of the cutting device of the plastic pelletizer of this utility model, the outer wall of the second disc is provided with a plurality of sets of insertion holes, and the outer walls of the first disc and the third disc are provided with a plurality of sets of through holes corresponding one-to-one with the insertion holes.

[0009] In a preferred embodiment of the cutting device of the plastic pelletizer of this utility model, the ball screw is rotatably mounted on the upper end of the base, and two sets of mutually symmetrical sliding rods are fixedly mounted on the upper end of the base. Two sets of sliding sleeves are movably sleeved on the outer wall of the sliding rods, and the sliding sleeves are fixedly connected to the outer walls of the second disc and the third disc, respectively.

[0010] In a preferred embodiment of the cutting device of the plastic pelletizer of this utility model, a transmission wheel is fixedly provided at the end of the ball screw away from the motor, a driven wheel is fixedly provided at the end of the rotating rod away from the first disc, a transmission belt is wound around the outer wall of the transmission wheel and the driven wheel, and the transmission wheel and the driven wheel are connected by the transmission belt.

[0011] In a preferred embodiment of the cutting device of the plastic pelletizer of this utility model, a collection frame is placed on one side of the lower end of the base.

[0012] Compared with the prior art, the present invention has at least the following beneficial effects: This invention allows for the sliding mounting plate along the adjusting rod, which slides along the adjusting groove to adjust the distance between the cutter and the first disc. After adjusting the cutter to the appropriate position according to production needs, the limiting bolt is screwed into the corresponding limiting hole to fix the position of the mounting plate and the cutter. By adjusting the position of the cutter, the factory can produce plastic granules of different sizes according to production needs to meet diverse production requirements.

[0013] 2. In this invention, during the rotation of the ball screw, the ball screw drives the transmission wheel to rotate, the transmission wheel drives the driven wheel to rotate via the transmission belt, the driven wheel drives the rotating rod to rotate, and the rotating rod drives the cutting blade to rotate around the center of the rotating rod. The cutting blade cuts the plastic rod passing through the hole in the first disc, and the plastic particles produced by cutting fall into the collection frame for collection. During the process of the second and third discs driving the plastic rod through the hole in the first disc, the cutting blade simultaneously cuts the plastic rod passing through the hole in the first disc, thereby making the cutting process more continuous and increasing the cutting efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the cutting device of the plastic pelletizer of this utility model; Figure 2 This is a three-dimensional structural diagram of the cutting component of the cutting device of the plastic pelletizer of this utility model; Figure 3 This is a schematic diagram of the overall three-dimensional structure of the cutting device of the plastic pelletizer of this utility model; Figure 4 This is a partial three-dimensional structural diagram of the cutting device of the plastic pelletizer of this utility model.

[0015] Explanation of reference numerals in the attached figures: 1. Base; 2. First disc; 3. Cutting assembly; 31. Connecting rod; 32. Mounting plate; 33. Adjusting rod; 34. Adjusting groove; 35. Limiting bolt; 36. Limiting hole; 37. Cutting blade; 4. Rotating rod; 5. Sliding rod; 6. Sliding sleeve; 7. Second disc; 8. Third disc; 9. Motor; 10. Ball screw; 11. Ball screw sleeve; 12. Transmission wheel; 13. Driven wheel; 14. Transmission belt; 15. Collection frame. Detailed Implementation

[0016] To make the above-mentioned objectives, 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. Example 1

[0017] Reference Figures 1-4This is the first embodiment of the present invention, which provides a cutting device for a plastic pelletizer, including a base 1, a first disc 2 on one side of the upper end of the base 1, and multiple sets of cutting components 3 evenly arranged on the outer wall of the first disc 2. Each cutting component 3 includes a connecting rod 31 on one side of the outer wall of the first disc 2, a mounting plate 32 on the upper end of the connecting rod 31, two sets of symmetrical adjustment grooves 34 on the upper and lower ends of the mounting plate 32, an adjustment rod 33 inserted in the adjustment groove 34, and a limit bolt 35 threaded into the upper and lower ends of the adjustment rod 33. Multiple sets of limit holes 36 that cooperate with the limit bolts 35 are evenly arranged on the outer wall of the upper and lower ends of the mounting plate 32. A cutting blade 37 is fixedly arranged on one side of the outer wall of the mounting plate 32. A rotating rod 4 is arranged in the middle of the first disc 2. A motor 9 is fixedly arranged on the upper end of the base 1. A ball screw 10 is arranged at the output end of the motor 9. Two sets of symmetrical ball sleeves 11 are sleeved on the outer wall of the ball screw 10. A second disc 7 and a third disc 8 are respectively arranged on the upper ends of the two sets of ball sleeves 11.

[0018] The connecting rod 31 and the rotating rod 4 are fixedly connected to the outer wall, and the rotating rod 4 is rotatably connected to the middle end of the first disc 2.

[0019] The adjusting groove 34 gradually moves from the end away from the cutting blade 37 to the end near the cutting blade 37 towards the outer wall of the first disc 2. The adjusting rod 33 is movably inserted into the adjusting groove 34, and the end of the adjusting rod 33 away from the limiting bolt 35 is fixedly connected to the upper end of the connecting rod 31.

[0020] The outer wall of the second disc 7 has multiple sets of insertion holes, and the outer walls of the first disc 2 and the third disc 8 both have multiple sets of through holes that correspond one-to-one with the insertion holes.

[0021] The ball screw 10 is rotatably mounted on the upper end of the base 1. Two sets of symmetrical sliding rods 5 are fixedly mounted on the upper end of the base 1. Two sets of sliding sleeves 6 are movably sleeved on the outer wall of the sliding rods 5. The sliding sleeves 6 are fixedly connected to the outer walls of the second disc 7 and the third disc 8, respectively.

[0022] A drive wheel 12 is fixedly provided at the end of the ball screw 10 away from the motor 9, and a driven wheel 13 is fixedly provided at the end of the rotating rod 4 away from the first disc 2. A drive belt 14 is wound around the outer wall of the drive wheel 12 and the driven wheel 13, and the drive wheel 12 and the driven wheel 13 are connected by the drive belt 14.

[0023] A collection frame 15 is placed on one side of the lower end of the first disc 2 on the base 1.

[0024] The worker inserts the plastic rods to be granulated through the holes in the third disc 8, then inserts them into the holes in the second disc 7. The plastic rods to be granulated are placed between the second and third discs 8. The motor 9 is then started, driving the ball screw 10 to rotate. The ball screw 10 drives two sets of ball sleeves 11 to slide towards the first disc 2. The second and third discs 7 and 8 move synchronously towards the first disc 2. During this process, the sliding sleeve 6 slides along the outer wall of the sliding rod 5, increasing the stability of the second and third discs 7 and 8 during their movement. This process is further facilitated by the rotation of the ball screw 10. The ball screw 10 drives the transmission wheel 12 to rotate, and the transmission wheel 12 drives the driven wheel 13 to rotate through the transmission belt 14. The driven wheel 13 drives the rotating rod 4 to rotate, and the rotating rod 4 drives the cutting blade 37 to rotate in a circle around the center of the rotating rod 4. The cutting blade 37 cuts the plastic rod that passes through the hole in the first disc 2. The plastic particles produced by cutting fall into the collection frame 15 for collection. During the process of the second disc 7 and the third disc 8 driving the plastic rod through the hole in the first disc 2, the cutting blade 37 simultaneously cuts the plastic rod that passes through the hole in the first disc 2, thereby making the cutting process more continuous and increasing the cutting efficiency.

[0025] When it is necessary to change the size of the cut plastic granules, the motor 9 can be turned off, and the mounting plate 32 can be slid along the adjusting rod 33. The adjusting rod 33 slides along the adjusting groove 34. The adjusting groove 34 gradually moves from the end away from the cutting blade 37 to the end closer to the cutting blade 37 towards the outer wall of the first disc 2. When the adjusting rod 33 moves to the end of the adjusting groove 34 furthest from the cutting blade 37, the distance between the cutting blade 37 and the first disc 2 is the largest, and the cut plastic granules are longer. When the adjusting rod 33 moves to the end of the adjusting groove 34 closest to the cutting blade 37, the distance between the cutting blade 37 and the first disc 2 is the smallest, and the cut plastic granules are the shortest. After adjusting the cutting blade 37 to the appropriate position according to production needs, the limiting bolt 35 is screwed into the corresponding limiting hole 36 to fix the position of the mounting plate 32 and the cutting blade 37. By adjusting the position of the cutting blade 37, the factory can produce plastic granules of different sizes according to production needs to meet diverse production requirements.

[0026] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A cutting device for a plastic pelletizer, comprising a base (1), characterized in that: The base (1) has a first disc (2) on one side of its upper end. Multiple sets of cutting components (3) are evenly distributed on the outer wall of the first disc (2). Each cutting component (3) includes a connecting rod (31) on one side of the outer wall of the first disc (2). A mounting plate (32) is provided at the upper end of the connecting rod (31). Two sets of symmetrical adjustment grooves (34) are opened at the upper and lower ends of the mounting plate (32). An adjustment rod (33) is inserted into each adjustment groove (34). Limiting bolts (35) are threaded into the upper and lower ends of the adjustment rod (33). The mounting plate ( 32) Multiple sets of limiting holes (36) that cooperate with the limiting bolts (35) are evenly opened on the outer walls of the upper and lower ends. A cutting blade (37) is fixedly provided on one side of the outer wall of the mounting plate (32). A rotating rod (4) is provided in the middle of the first disc (2). A motor (9) is fixedly provided on the upper end of the base (1). A ball screw (10) is provided at the output end of the motor (9). Two sets of ball screw sleeves (11) are symmetrically fitted on the outer wall of the ball screw (10). A second disc (7) and a third disc (8) are respectively provided on the upper ends of the two sets of ball screw sleeves (11).

2. The cutting device of the plastic pelletizer according to claim 1, characterized in that: The connecting rod (31) and the rotating rod (4) are fixedly connected to the outer wall, and the rotating rod (4) is rotatably connected to the middle end of the first disc (2).

3. The cutting device of the plastic pelletizer according to claim 1, characterized in that: The adjusting groove (34) gradually moves from the end away from the cutting blade (37) to the end near the cutting blade (37) towards the outer wall of the first disc (2). The adjusting rod (33) is movably inserted into the adjusting groove (34). The end of the adjusting rod (33) away from the limiting bolt (35) is fixedly connected to the upper end of the connecting rod (31).

4. The cutting device of the plastic pelletizer according to claim 1, characterized in that: The outer wall of the second disc (7) has multiple sets of insertion holes, and the outer walls of the first disc (2) and the third disc (8) have multiple sets of through holes corresponding to the insertion holes.

5. The cutting device of the plastic pelletizer according to claim 1, characterized in that: The ball screw (10) is rotatably mounted on the upper end of the base (1). Two sets of symmetrical sliding rods (5) are fixedly mounted on the upper end of the base (1). Two sets of sliding sleeves (6) are movably mounted on the outer wall of the sliding rods (5). The sliding sleeves (6) are fixedly connected to the outer walls of the second disc (7) and the third disc (8), respectively.

6. The cutting device of the plastic pelletizer according to claim 1, characterized in that: The ball screw (10) is fixed with a drive wheel (12) at the end away from the motor (9), and the rotating rod (4) is fixed with a driven wheel (13) at the end away from the first disc (2). The drive wheel (12) and the driven wheel (13) are wound with a drive belt (14) on their outer walls, and the drive wheel (12) and the driven wheel (13) are connected by the drive belt (14).

7. The cutting device of the plastic pelletizer according to claim 1, characterized in that: The base (1) is located on one side of the lower end of the first disc (2) and a collection frame (15) is placed thereon.

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