A granulator with adjustable pellet size

Abstract

The present invention discloses a pelletizer with adjustable particle size, which relates to the technical field of strand pelletizing, and includes a pelletizer body and a circulating supply tank fixedly installed on the top surface of the pelletizer body; it further includes: a strand mechanism is arranged inside the pelletizer body, and the strand mechanism includes a strand cylinder, and the strand cylinder is fixedly installed at the central position inside the pelletizer body; among them, a conveying mechanism is arranged inside the pelletizer body, and the conveying branch pipes are fixedly installed inside the pelletizer body at equal angles in a front-back symmetric manner. This pelletizer with adjustable particle size conveys strip-shaped plastics through the strand cylinder, and the conveying branch pipes assist in lubricating and cooling the strip-shaped plastics. At the same time, the positioning pelletizing group and the adjustable pelletizing group at the outer end of the pelletizing bracket perform pelletizing operations, so as to achieve cutting operations with different particle size lengths, and stir the plastic particles after pelletizing to prevent adhesion.

Description

Technical Field

[0001] The present invention relates to the technical field of strand pelletizing, and specifically relates to an adjustable particle size strand pelletizing machine. Background Art

[0002] Strand pelletizing refers to a granulation method for plastic processing. The molten plastic is extruded into strip-shaped materials through a screw extruder and a die head. After these strip-shaped materials are cooled and shaped in a cooling water tank, they are cut into particles of a certain length by a strand pelletizing machine. However, the plastic particles in the pelletizing process are squeezed by the cutting tool, making the shape of the particles irregular, and it is still easy for them to stick together after cutting and stacking.

[0003] The invention with the publication number CN107471480A discloses a pelletizing machine. By arranging an inclined cold water channel on the wall between the conical surface of the feeding fixed tube and the inner cavity of the feeding fixed tube, the cooling water entering the cold water tank is sprayed obliquely into the inner cavity of the feeding fixed tube, realizing the reverse blowing of water to the plastic strip to be cut, thereby realizing the rapid cooling of the plastic strip to be cut, and at the same time greatly reducing the water content of the plastic strip after being output from the cooling device.

[0004] The invention with the publication number CN111231154A discloses a water flushing strand pelletizing device. A water delivery pipe is arranged on the base frame, and the water delivery pipe corresponds to the inclined upward end of the first water box. One end of the water delivery pipe is closed, and the other end is connected to a water source. A first valve and several water faucets are arranged on the water delivery pipe. The present invention has the effect of reducing the possibility of insufficient cooling of the strip material.

[0005] However, the above-mentioned strand pelletizing machine for plastics still has the following problems in the actual use process: Although the cutting work of the strip-shaped plastic is realized through the cooperation of the conveying mechanism and the cutting tool, such a cutting mechanism can only cut a single strip of plastic each time. At the same time, the strip-shaped plastic that is not fully shaped during the conveying process is easy to stick to the channel, and then block the channel. At the same time, this type of cutting mechanism cannot adjust the length of the particle size, and thus cannot meet the requirements of frequent replacement and adjustment.

[0006] Therefore, we propose an adjustable particle size strand pelletizing machine to solve the problems raised above. Summary of the Invention

[0007] The purpose of the present invention is to provide an adjustable particle size strand pelletizing machine to solve the problem that in the existing technology, the cutting work of strip-shaped plastic is realized through the cooperation of the conveying mechanism and the cutting tool, but such a cutting mechanism can only cut a single strip of plastic each time. At the same time, the strip-shaped plastic that is not fully shaped during the conveying process is easy to stick to the channel, and then block the channel. At the same time, this type of cutting mechanism cannot adjust the length of the particle size, and thus cannot meet the requirements of frequent replacement and adjustment.

[0008] To achieve the above object, the present invention provides the following technical solution: A particle size adjustable strand pelletizer, comprising a pelletizer body, and a circulating supply tank fixedly installed on the top surface of the pelletizer body, and a cooling container is fixedly arranged at the front end of the pelletizer body;

[0009] It further includes: A strand mechanism is arranged inside the pelletizer body, and the strand mechanism includes a strand column, and the strand column is fixedly installed at the central position inside the pelletizer body;

[0010] Among them, a conveying mechanism is arranged inside the pelletizer body, and the conveying mechanism includes a conveying branch pipe, and the conveying branch pipes are fixedly installed at equal angles in a front-back symmetric manner inside the pelletizer body.

[0011] Preferably, the strand mechanism includes a driving rotating shaft, and the driving rotating shaft is rotatably arranged at the central position inside the strand column through a bearing, and strand slots are opened at equal angles on the inner and outer sides inside the strand column for the plastic strand to be conveyed through the strand slots.

[0012] Preferably, the strand mechanism includes a positioning bracket, and the positioning bracket is fixedly installed in the front of the cooling container, and the inner end of the positioning bracket is rotatably connected to the front end of the driving rotating shaft through a bearing, and the bottom surface inside the cooling container is connected to the circulating pipe in a penetrating manner.

[0013] Preferably, the strand mechanism includes a dispersion rotating rod, and the dispersion rotating rods are fixedly arranged at equal angles on the outer wall of the driving rotating shaft inside the cooling container, and the outer ends of the dispersion rotating rods are slidably fitted to the inner wall of the cooling container for agitating the plastic particles after pelletizing to achieve dispersion.

[0014] Preferably, the inner end of the conveying branch pipe included in the conveying mechanism extends into the strand slot opened inside the strand column, and the inner end of the conveying branch pipe is connected to the strand slot in a penetrating manner, and the outer end of the conveying branch pipe is connected to the circulating supply tank on the top surface of the pelletizer body in a penetrating manner.

[0015] Preferably, the inner ends of the conveying branch pipes included in the conveying mechanism are distributed in a "Y" - shaped structure, and the conveying branch pipes are used to convey the lubricating and cooling liquid inside the circulating supply tank into the strand slots. The lubricating and cooling liquid is used to prevent the plastic strand from being blocked in the strand slots, and the circulating supply tank included in the conveying mechanism is connected to the top end of the circulating pipe in a penetrating manner.

[0016] Preferably, a pelletizing mechanism is arranged at the front end of the pelletizer body, and the pelletizing mechanism includes a pelletizing bracket, and the pelletizing bracket is fixedly installed on the outer wall of the driving rotating shaft at the front end of the strand column, and positioning pelletizing groups and adjustable pelletizing groups are arranged at equal angles at the outer end of the strand column.

[0017] Preferably, two pelletizing knives are fixedly arranged at the outer ends of the positioning pelletizing group and the adjustable pelletizing group included in the pelletizing mechanism, and the inner ends of the positioning pelletizing groups arranged at equal angles are fixedly connected to the outer end of the pelletizing bracket, and the inner ends of the adjustable pelletizing groups arranged at equal angles are slidably arranged at the inner end of the pelletizing bracket.

[0018] Preferably, the pelletizing mechanism includes an elastic sliding rod, and the rear ends of the elastic sliding rods are fixedly installed at the front of the pelletizing bracket at equal angles, and the outer ends of the elastic sliding rods are slidably connected to the inside of the adjusting gear ring, and adjusting gears are meshed at the rear of the adjusting gear ring at equal angles.

[0019] Preferably, the pelletizing mechanism includes an adjustable distance threaded rod, and the adjustable distance threaded rod is fixedly connected to the front of the inner end of the adjustable pelletizing group, and the outer end of the adjustable distance threaded rod is threadedly connected to an adjustable distance sleeve, and the adjustable distance sleeve rotates on the front of the pelletizing bracket through a bearing, and the outer end of the adjustable distance sleeve is fixedly connected to the inside of the adjusting gear, for adjusting the position of the pelletizing knife at the outer end of the adjustable pelletizing group.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: The particle size adjustable strand pelletizing machine transports strip-shaped plastics through the strand column, and the conveying branch pipe assists the strip-shaped plastics to be lubricated and cooled. At the same time, the positioning pelletizing group and the adjustable pelletizing group at the outer end of the pelletizing bracket perform pelletizing operations to achieve cutting operations with different particle size lengths, and stir the plastic particles after pelletizing to disperse and prevent adhesion. The specific content is as follows:

[0021] 1. The strand slot of the strand column transports columnar plastics, and the circulating supply tank transports lubricating coolant to the conveying branch pipe, and then transports the lubricating coolant to the corresponding strand slot, and then assists the long strip plastics inside the strand slot to move and achieve cooling, avoiding blockage and other situations where the plastic end cannot move due to length problems.

[0022] The lubricating coolant flows out from the front end of the strand column and enters the cooling container at the front end of the pelletizing machine body. The plastic debris and the like are filtered through the slot at the bottom of the cooling container, so that the lubricating coolant re-enters the circulating supply tank through the through-connected circulating pipe, and thus realizes recycling.

[0023] 2. The driving rotating shaft drives the pelletizing bracket, the positioning pelletizing group and the adjustable pelletizing group to rotate. The outer ends of the positioning pelletizing group and the adjustable pelletizing group have the same length, and the inner ends of the two pelletizing knives correspond to the front end of the strand slot. Then, the pelletizing knives at the outer ends of the positioning pelletizing group and the adjustable pelletizing group cut the protruding long strip plastics, and the length of the plastic particle size cut in this process is the same.

[0024] After pressing the adjusting gear ring, it meshes with the adjusting gear. The rotating adjusting gear ring drives the adjusting gear and the distance-adjusting sleeve to rotate. The distance-adjusting screw rod threadedly connected to the distance-adjusting sleeve is fixedly connected to the inner end of the adjustable pelletizing group. Thus, the adjustable pelletizing group is driven by the distance-adjusting screw rod to move outward, so that the adjustable pelletizing group can change the position of the corresponding strip slot through the pelletizing tool at its outer end.

[0025] When the outer end of the adjustable pelletizing group drives the pelletizing tool not to correspond to the strip slot, only the positioning pelletizing group can be driven by the pelletizing bracket to cut the plastic. At this time, the number of plastic pellets cut in the same time is equal to half. When the adjustable pelletizing group only drives one adjustable pelletizing group to correspond to the strip slot, the particle size of the cut plastic pellets is in a mixed state, so as to achieve fast and efficient adjustment and adapt to the pelletizing work under different requirements.

[0026] 3. The plastic pellets enter the inside of the cooling container. At the same time, the rotating driving rotating shaft drives the equally-angled dispersion rotating rods arranged at the front end to rotate, so as to stir and disperse the falling plastic pellets, avoid continuous accumulation and adhesion, and at the same time cooperate with the continuously flowing lubricating cooling liquid to make the plastic pellets immersed in it to accelerate the cooling effect. Brief Description of the Drawings

[0027] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the installation structure of the driving rotating shaft of the present invention;

[0029] Figure 3 It is a schematic diagram of the installation structure of the strip column of the present invention;

[0030] Figure 4 It is a schematic diagram of the installation structure of the strip column and the conveying branch pipe of the present invention;

[0031] Figure 5 It is a schematic diagram of the three-dimensional structure of the conveying branch pipe of the present invention;

[0032] Figure 6 It is of the present invention Figure 5 The enlarged schematic diagram at position A;

[0033] Figure 7 It is a schematic diagram of the three-dimensional structure of the pelletizing bracket of the present invention;

[0034] Figure 8 It is of the present invention Figure 7 The enlarged schematic diagram at position B;

[0035] Figure 9 It is a schematic diagram of the structure of the adjustable pelletizing group after sliding of the present invention;

[0036] Figure 10 For the present invention Figure 9 Schematic diagram of the enlarged structure at position C in the present invention;

[0037] Figure 11 Schematic three-dimensional structure diagram of the adjustable granulation group and granulation tool of the present invention.

[0038] In the figure: 1, granulator body; 2, circulating supply tank; 3, cooling container; 4, draw bar cylinder; 5, conveying branch pipe; 6, driving rotating shaft; 7, draw bar slot; 8, positioning bracket; 9, circulating through pipe; 10, dispersing rotating rod; 11, granulation bracket; 12, positioning granulation group; 13, adjustable granulation group; 14, granulation tool; 15, adjusting gear ring; 16, adjusting gear; 17, distance adjusting screw rod; 18, distance adjusting sleeve; 19, elastic sliding rod. Specific embodiments

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] Please refer to Figures 1 - 11 , the present invention provides the following technical solutions:

[0041] Embodiment 1: To solve the problems existing in the actual use of the existing draw bar granulator, therefore, in this embodiment, through the following technical solutions, a particle size adjustable draw bar granulator includes a granulator body 1 and a circulating supply tank 2 fixedly installed on the top surface of the granulator body 1, and a cooling container 3 is fixedly arranged at the front end of the granulator body 1; a draw bar mechanism is arranged inside the granulator body 1, and the draw bar mechanism includes a draw bar cylinder 4, and the draw bar cylinder 4 is fixedly installed at the central position inside the granulator body 1; among them, a conveying mechanism is arranged inside the granulator body 1, and the conveying mechanism includes a conveying branch pipe 5, and the conveying branch pipe 5 is fixedly installed inside the granulator body 1 at equal angles in a front-back symmetric manner.

[0042] The inner end of the conveying branch pipe 5 included in the conveying mechanism extends into the draw bar slot 7 opened inside the draw bar cylinder 4, and the inner end of the conveying branch pipe 5 is connected to the draw bar slot 7 in a through connection, and the outer end of the conveying branch pipe 5 is connected to the circulating supply tank 2 on the top surface of the granulator body 1 in a through connection; the inner end of the conveying branch pipe 5 included in the conveying mechanism is distributed in a "Y" - shaped structure, and the conveying branch pipe 5 is used to convey the lubricating and cooling liquid inside the circulating supply tank 2 into the draw bar slot 7. The lubricating and cooling liquid is used to prevent the plastic draw bar from being blocked in the draw bar slot 7, and the circulating supply tank 2 included in the conveying mechanism is connected to the top end of the circulating pipe 9 in a through connection.

[0043] As Figures 4 - 6 shown, the granulator body 1 realizes the draw bar operation of plastics through the draw bar cylinder 4 fixedly arranged inside. At the same time, the draw bar slot 7 opened inside the draw bar cylinder 4 conveys the columnar plastics. Meanwhile, the circulating supply tank 2 installed above the granulator body 1 conveys the lubricating and cooling liquid into the conveying branch pipes 5 arranged at equal angles inside the draw bar cylinder 4. Through the "Y" - shaped structure at the inner end of the conveying branch pipe 5, the lubricating and cooling liquid is conveyed into the corresponding draw bar slot 7, thereby assisting the long plastics inside the draw bar slot 7 to move and realizing cooling, so as to avoid situations such as blockage caused by the inability of the plastic end to move due to length problems.

[0044] Furthermore, the lubricating and cooling liquid inside the draw bar slot 7 flows out through the front end of the draw bar cylinder 4 and enters the cooling container 3 at the front end of the granulator body 1. The plastic debris, etc. are filtered through the slot at the bottom of the cooling container 3, so that the lubricating and cooling liquid can re - enter the circulating supply tank 2 through the through - connected circulating pipe 9, thereby realizing recycling.

[0045] Embodiment 2: In order to solve the problems existing in the actual use of the existing draw bar granulator, therefore, in this embodiment, through the following technical solutions, the draw bar mechanism includes a driving rotating shaft 6, and the driving rotating shaft 6 is rotatably arranged at the central position inside the draw bar cylinder 4 through a bearing. And draw bar slots 7 are opened at equal angles on the inner and outer sides inside the draw bar cylinder 4 so that the plastic draw bar can be conveyed through the draw bar slots 7; a cutting mechanism is arranged at the front end of the granulator body 1, and the cutting mechanism includes a cutting support 11, and the cutting support 11 is fixedly installed on the outer wall of the driving rotating shaft 6 at the front end of the draw bar cylinder 4. And positioning cutting groups 12 and adjustable cutting groups 13 are arranged at equal angles at the outer end of the draw bar cylinder 4.

[0046] Both the outer ends of the positioning granulation group 12 and the adjustable granulation group 13 included in the granulation mechanism are fixedly provided with two granulation cutters 14, and the inner ends of the equally angled positioning granulation group 12 are fixedly connected to the outer end of the granulation bracket 11, and the inner ends of the equally angled adjustable granulation group 13 are slidably arranged at the inner end of the granulation bracket 11; the granulation mechanism includes an elastic slide bar 19, and the rear end of the elastic slide bar 19 is fixedly installed at the front of the granulation bracket 11 at equal angles, and the outer end of the elastic slide bar 19 is slidably connected to the inside of the adjusting gear ring 15, and the adjusting gear 16 is meshed at equal angles behind the adjusting gear ring 15.

[0047] The granulation mechanism includes an adjustable distance threaded rod 17, and the adjustable distance threaded rod 17 is fixedly connected to the front of the inner end of the adjustable granulation group 13, and the outer end of the adjustable distance threaded rod 17 is threadedly connected to an adjustable distance sleeve 18, and the adjustable distance sleeve 18 rotates through a bearing on the front of the granulation bracket 11, and at the same time the outer end of the adjustable distance sleeve 18 is fixedly connected to the inside of the adjusting gear 16, for adjusting the position of the granulation cutter 14 at the outer end of the adjustable granulation group 13.

[0048] As Figure 3 , Figure 9 shown, the driving rotating shaft 6 arranged at the central position inside the draw bar cylinder 4 is driven to rotate by the driving motor at the rear end, and at the same time the driving rotating shaft 6 drives the granulation bracket 11, the positioning granulation group 12 and the adjustable granulation group 13 at the front end to rotate. During this process, the outer end lengths of the positioning granulation group 12 and the adjustable granulation group 13 are the same, so that the inner ends of the two granulation cutters 14 both correspond to the front end of the draw bar slot 7 opened inside the draw bar cylinder 4. Furthermore, the granulation cutters 14 at the outer ends of the positioning granulation group 12 and the adjustable granulation group 13 are used to cut the protruding long plastic. During this process, the lengths of the cut plastic particle diameters are the same.

[0049] Furthermore, when it is necessary to change the length of the plastic particle diameter, manually press the adjusting gear ring 15 towards the front of the granulation bracket 11, so that the adjusting gear ring 15 meshes with the equally angled adjusting gear 16, and rotate the adjusting gear ring 15 to drive the adjusting gear 16 and the adjustable distance sleeve 18 to rotate. The adjustable distance threaded rod 17 threadedly connected to the adjustable distance sleeve 18 is fixedly connected to the inner end of the adjustable granulation group 13. Furthermore, the adjustable granulation group 13 is driven to move outward through the adjustable distance threaded rod 17, so that the adjustable granulation group 13 can change the position corresponding to the draw bar slot 7 through the granulation cutter 14 at its outer end.

[0050] When the adjustable granulation group 13 drives the granulation tool 14 at the outer end not to correspond to the draw bar slot hole 7, only the positioning granulation group 12 can be driven by the granulation support 11 to cut plastics. At this time, the number of plastic particles cut in the same time is equal to half. When only one adjustable granulation group 13 of the adjustable granulation group 13 is driven to correspond to the draw bar slot hole 7, the particle size of the cut plastic particles is in a mixed state, so as to achieve fast and efficient adjustment and adapt to the granulation work under different requirements.

[0051] Embodiment 3: In order to solve the problems existing in the actual use of the existing draw bar granulator, the following technical solutions are adopted in this embodiment. The draw bar mechanism includes a positioning bracket 8, and the positioning bracket 8 is fixedly installed in the front of the cooling container 3. The inner end of the positioning bracket 8 is rotatably connected to the front end of the driving rotating shaft 6 through a bearing. The inner bottom surface of the cooling container 3 is connected to the circulation pipe 9 in a penetrating manner; the draw bar mechanism includes a dispersing rotating rod 10, and the dispersing rotating rod 10 is fixedly arranged at equal angles on the outer wall of the driving rotating shaft 6 inside the cooling container 3, and the outer end of the dispersing rotating rod 10 is in sliding contact with the inner wall of the cooling container 3 to stir and disperse the plastic particles after granulation.

[0052] As Figures 1 - 2 shown, the plastic particles cut by the granulation mechanism enter the inside of the cooling container 3. At the same time, the rotating driving rotating shaft 6 drives the dispersing rotating rods 10 arranged at equal angles at the front end to rotate, so as to stir and disperse the falling plastic particles, avoid continuous accumulation and adhesion, and at the same time cooperate with the continuously flowing lubricating and cooling liquid to make the plastic particles immersed in it to accelerate the cooling effect.

[0053] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A particle size adjustable strand pelletizer, comprising a pelletizer body (1), and a circulation supply box (2) fixedly mounted on the top surface of the pelletizer body (1), and a cooling container (3) fixedly provided at the front end of the pelletizer body (1); It is characterized by: Also includes: A pull rod mechanism is provided inside the pelletizer body (1), and the pull rod mechanism includes a pull rod column (4), and the pull rod column (4) is fixedly installed at the center position inside the pelletizer body (1); A conveying mechanism is provided inside the pelletizer body (1), and the conveying mechanism includes a conveying branch pipe (5), and the conveying branch pipe (5) is fixedly installed inside the pelletizer body (1) in a front-to-back symmetrical manner at equal angles; The pull rod mechanism includes a driving shaft (6), and the driving shaft (6) is rotatably arranged at the inner center position of the pull rod column (4) through a bearing, and pull rod slots (7) are opened at equal angles on the inner and outer sides of the pull rod column (4); The inner end of the conveying branch pipe (5) included in the conveying mechanism extends into the draw bar slot (7) provided inside the draw bar column (4), and the inner end of the conveying branch pipe (5) and the draw bar slot (7) are interconnected, and the outer end of the conveying branch pipe (5) is interconnected with the circulation supply box (2) on the top surface of the pelletizer body (1); The front end of the pelletizer body (1) is provided with a pelletizing mechanism, and the pelletizing mechanism includes a pelletizing bracket (11), and the pelletizing bracket (11) is fixedly mounted on the outer wall of the driving shaft (6) at the front end of the pull rod column (4), and the outer end of the pull rod column (4) is provided with a positioning pelletizing group (12) and an adjustable pelletizing group (13) at equal angles; and the inner ends of the positioning pelletizing groups (12) provided at equal angles are fixedly connected to the outer end of the pelletizing bracket (11), and the inner ends of the adjustable pelletizing groups (13) provided at equal angles are slidably provided on the inner end of the pelletizing bracket (11); The pelletizing mechanism includes an elastic slide bar (19), and the rear end of the elastic slide bar (19) is fixedly mounted at an equal angle on the front of the pelletizing bracket (11), and the outer end of the elastic slide bar (19) is slidably connected to the inside of the adjusting tooth ring (15), and the rear end of the adjusting tooth ring (15) is meshed with an adjusting gear (16) at an equal angle; The pelletizing mechanism includes a pitch-adjusting threaded rod (17), and the pitch-adjusting threaded rod (17) is fixedly connected to the front of the inner end of the adjustable pelletizing group (13), and the outer end of the pitch-adjusting threaded rod (17) is threadedly connected to a pitch-adjusting sleeve (18), and the pitch-adjusting sleeve (18) rotates on the front of the pelletizing bracket (11) through a bearing, and the outer end of the pitch-adjusting sleeve (18) is fixedly connected to the inside of the adjusting gear (16) for adjusting the position of the pelletizing tool (14) at the outer end of the adjustable pelletizing group (13); When the length of the plastic pellets needs to be changed, the adjusting tooth ring (15) is pressed and meshed with the adjusting gear (16), so that the adjustable pelletizing group (13) changes the position of the corresponding pull rod slot (7) through the pelletizing tool (14) at its outer end.

2. The particle size adjustable strand pelletizer according to claim 1, characterized in that: The pull rod mechanism includes a positioning bracket (8), and the positioning bracket (8) is fixedly installed at the front of the interior of the cooling container (3), and the inner end of the positioning bracket (8) is rotatably connected to the front end of the driving shaft (6) through a bearing, and the inner bottom surface of the cooling container (3) is connected to the circulation pipe (9).

3. The particle size adjustable strand pelletizer according to claim 2, characterized in that: The pull rod mechanism includes a dispersion rotating rod (10), and the dispersion rotating rod (10) is fixedly arranged at an equal angle on the outer wall of the driving rotating shaft (6) inside the cooling container (3), and the outer end of the dispersion rotating rod (10) is fitted and slid on the inner wall of the cooling container (3) to stir the plastic particles after pelletizing to achieve dispersion.

4. The particle size adjustable strand pelletizer according to claim 3, characterized in that: The inner end of the delivery branch pipe (5) included in the delivery mechanism is distributed in a "Y"-shaped structure, and the delivery branch pipe (5) is used to deliver the lubricating and cooling liquid inside the circulation supply box (2) to the draw bar slot (7), and the lubricating and cooling liquid is used to prevent the plastic draw bar from being blocked in the draw bar slot (7), and the circulation supply box (2) included in the delivery mechanism is connected to the top end of the circulation pipe (9).

5. The particle size adjustable strand pelletizer according to claim 4, characterized in that: The pelletizing mechanism comprises a positioning pelletizing group (12) and an adjustable pelletizing group (13), both of which are fixedly provided with two pelletizing knives (14) at their outer ends.

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