Material strip pelletizing device for plastic master batch production
By designing a strip pelletizing device including a pelletizing assembly and a screening assembly, the problem of difficulty in cutting strips of different sizes and performing effective screening in the prior art is solved, and more uniform cutting and higher product quality are achieved.
Patent Information
- Application Number
- CN202421020233.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-05-11
AI Technical Summary
During the production process of existing plastic masterbatches, it is difficult to effectively cut strips of different sizes and perform screening treatment, resulting in uneven cutting and the presence of unqualified particles.
A strip pelletizing device including a pelletizing assembly and a screening assembly is designed. The pelletizing assembly passes through a first conveying roller, a first motor, a first pressure frame, a spring, a second conveying roller, a cooling box, a first pressure roller, a second motor, a second pressure frame, a hydraulic cylinder, and a second pressure The roller, the third motor and two cutting knives realize the pelletization of strips of different sizes. The screening assembly is screened through a drum, feed hopper, protective ring, push plate and motor.
The device can effectively cut strips of different sizes, improve the cutting uniformity and scope of application of plastic masterbatches, and remove unqualified particles by screening components, improving the quality of the product. At the same time, the setting of the cooling box reduces the adhesion of the strips to the cutting knife.
Smart Images
Figure CN222472656U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plastic masterbatch processing, in particular to a material strip pelletizing device used for the production of plastic masterbatch. Background Art
[0002] Plastic masterbatch is a kind of plastic processing aid, which is composed of excess chemical additives, carrier resin and dispersant. Masterbatch is an aggregate obtained by uniformly loading an excess amount of pigment in a resin. Masterbatch refers to the granular material obtained by mixing and kneading various required additives, fillers and a small amount of carrier resin in the process of plastic processing and molding for the convenience of operation, and then measuring, mixing, melting, extruding, pelletizing and other processing processes such as extruders. Masterbatch is composed of carrier resin, various fillers and various additives. The limit of additives or the content of fillers in masterbatch is several to ten times higher than the required amount in actual plastic products. In the molding process, the ratio of masterbatch to base resin must be adjusted according to the content of relevant components in the masterbatch and the amount required to be added in the actual product. Masterbatch can usually be divided into ordinary filling masterbatch and functional masterbatch, such as color masterbatch, anti-fog masterbatch, etc.
[0003] In the existing plastic masterbatch production process, the extruded material strips are cooled by water and then cut to obtain plastic masterbatch. Most plastic masterbatches can only be cut into strips of a single size, which has a narrow application range. In addition, many unqualified particles are mixed in after cutting, which requires further processing. Utility Model Content
[0004] The utility model aims to solve the technical problem of how to carry out pelletizing and screening treatment on material strips of different sizes, and provides a material strip pelletizing device for producing plastic masterbatch.
[0005] The technical solution adopted by the utility model to solve its technical problems is:
[0006] A material strip pelletizing device for producing plastic masterbatch comprises a bracket, a controller, a pelletizing component and a screening component.
[0007] The bracket is arranged on the ground. The controller is arranged on one side of the bracket and is fixedly connected to the bracket. The pelletizing assembly is arranged on the upper part of the bracket and is fixedly connected to the bracket, and the pelletizing assembly is electrically connected to the controller. The screening assembly is arranged on the lower part of the bracket and is fixedly connected to the bracket, and the screening assembly is electrically connected to the controller.
[0008] The pelletizing assembly includes a first conveying roller, a first motor, a first pressure frame, a spring, a second conveying roller, a cooling box, a first pressing roller, a second motor, a second pressure frame, a hydraulic cylinder, a second pressing roller, a third motor, and two cutting knives. The first conveying roller is transversely arranged on the upper part of the bracket, and both ends of the first conveying roller are rotatably connected to the bracket through bearings. The first motor is arranged on one side of the first conveying roller, the first motor is fixedly connected to the bracket, the first motor shaft is fixedly connected to the shaft on one side of the first conveying roller, the axis of the first motor shaft coincides with the axis of the first conveying roller, and the first motor is electrically connected to the controller.
[0009] The first pressure frame is arranged above the first conveying roller, and the upper end of the first pressure frame is slidably connected to the bracket. The spring is arranged vertically above the first pressure frame, the upper end of the spring is fixedly connected to the bracket, the lower end of the spring is fixedly connected to the upper end of the first pressure frame, and the axis of the spring is perpendicular to the axis of the first conveying roller and located in the same plane. The second conveying roller is arranged horizontally above the first conveying roller, and both ends of the second conveying roller are rotatably connected to the lower end of the first pressure frame through bearings, the axis of the second conveying roller is perpendicular to the axis of the spring and located in the same plane, and the diameter of the second conveying roller is the same as the diameter of the first conveying roller.
[0010] The cooling box is arranged in front of the first conveying roller, and the cooling box is fixedly connected to the bracket. The first pressing roller is arranged transversely in front of the cooling box, and both ends of the first pressing roller are respectively connected to the bracket through bearings for rotation, the axis of the first pressing roller is parallel to the axis of the first conveying roller, and the diameter of the first pressing roller is the same as the diameter of the first conveying roller. The second motor is arranged on one side of the first pressing roller, the second motor is fixedly connected to the bracket, the second motor shaft is fixedly connected to the shaft on one side of the first pressing roller, the axis of the second motor shaft coincides with the axis of the first pressing roller, and the second motor is electrically connected to the controller.
[0011] The second pressure frame is arranged above the first nip roller, and the upper end of the second pressure frame is slidably connected to the bracket. The hydraulic cylinder is vertically arranged above the second pressure frame, the output end of the hydraulic cylinder is fixedly connected to the second pressure frame, the other end of the hydraulic cylinder is fixedly connected to the bracket, the hydraulic cylinder is electrically connected to the controller, the axis of the hydraulic cylinder is perpendicular to the axis of the first nip roller and is located in the same plane, and the axis of the hydraulic cylinder is perpendicular to the plane where the axis of the first nip roller and the axis of the first conveying roller are located.
[0012] The second nip roller is arranged above the first nip roller, and both ends of the second nip roller are rotatably connected to the lower end of the second pressure frame through bearings, the axis of the second nip roller is perpendicular to the axis of the hydraulic cylinder and is located in the same plane, and the diameter of the second nip roller is the same as the diameter of the first conveying roller. The third motor is arranged at the front side of the second pressure frame, the third motor is fixedly connected to the bracket, the third motor shaft is arranged toward the second pressure frame, the third motor shaft axis is perpendicular to the axis of the hydraulic cylinder, the third motor shaft axis is perpendicular to the axis of the first nip roller, and the third motor is electrically connected to the controller.
[0013] The two cutting knives are respectively arranged on the circumferential side of the third motor shaft, one end of the two cutting knives is respectively fixedly connected to the third motor shaft, the length of the two cutting knives is greater than the length from the third motor shaft to the edge of one end of the first pressing roller, and the two cutting knives are in the same plane and perpendicular to the axis of the third motor shaft.
[0014] According to the above technical solution, when the material strip is pelletized, the material strip is pulled through the first conveyor roller and the second conveyor roller, passed through the cooling box, and finally passed through the first press roller and the second press roller. The second conveyor roller is subjected to the upward force of the material strip and moves upward, the second conveyor roller applies force to the first pressure frame, the first pressure frame slides vertically, and the spring contracts under the force of the first pressure frame. The controller controls the pressure output by the hydraulic cylinder to the second pressure frame, thereby controlling the pressure of the second pressure roller on the material strip. The controller further controls the first motor, the second motor, the third motor and the screening component to start, and adjusts the speed of the third motor through the controller according to actual needs. The first motor drives the first conveyor roller to rotate, the second motor drives the first press roller to rotate, and the third motor drives the two cutting knives to rotate around the third motor shaft. Under the force of the first conveyor roller and the first press roller, the material strip is continuously conveyed to the direction of the third motor, and the two rotating blades cut the material strip into plastic masterbatch.
[0015] The first conveying roller, the first motor, the first pressure frame, the spring, the second conveying roller, the first pressing roller, the second motor, the second pressure frame, the hydraulic cylinder, the second pressing roller, the third motor, and the two cutting knives can be used to pelletize material strips of different sizes, effectively improving the applicable scope of the pelletizing device for cutting plastic masterbatch. By setting up a cooling box, the material strips can be further cooled to reduce the adhesion of the material strips to the cutting knives.
[0016] Preferably, the screening assembly includes a first roller, a second roller, a drum, a feed hopper, a protective ring, a plurality of push plates, a third roller, and a fourth motor. The first roller is transversely arranged at the lower part of the bracket, and both ends of the first roller are rotatably connected to the bracket through bearings, and the axis of the first roller is perpendicular to the axis of the first pressing roller. The second roller is transversely arranged on one side of the first roller, and the axis of the second roller is parallel to the axis of the first roller.
[0017] The roller is arranged above the first roller and the second roller, and the roller is rotatably connected with the first roller and the second roller respectively, and both the front and rear sides of the roller are through openings. The side wall of the roller is provided with a plurality of screening holes, and the plurality of screening holes are through holes. The feed hopper is arranged on the side of the roller close to the third motor, and is fixedly connected with the bracket. The center of the upper end of the feed hopper is located below the center of the first pressing roller, and the diameter of the upper end of the feed hopper is greater than the length of the first pressing roller. The protective ring is arranged at the lower end of the feed hopper, and the protective ring is annular. The outer ring diameter of the protective ring is the same as the inner diameter of the roller. The outer ring edge of the protective ring is fixedly connected with the roller, and there is a gap between the inner ring of the protective ring and the lower end of the feed hopper. A plurality of push plates are arranged in the roller, and one end of the plurality of push plates is fixedly connected with the roller respectively. The third roller is arranged in the roller, and the third roller is fixedly connected with the other end of the plurality of push plates away from the connection between the plurality of push plates and the roller respectively. The axis of the third roller coincides with the axis of the roller, and the end of the third roller away from the protective ring extends to the outside of the roller. The fourth motor is arranged on a side of the drum away from the feed hopper, the fourth motor is fixedly connected to the bracket, the fourth motor shaft is fixedly connected to the third roller, and the axis of the fourth motor shaft coincides with the axis of the third roller.
[0018] Preferably, the cooling box includes a box body, a fourth roller, a first air outlet, a second air outlet, a suction fan, and a hair dryer. The box body is arranged between the first conveying roller and the first pressing roller, the box body is fixedly connected to the bracket, and the front and rear sides of the box body are both through openings. The fourth roller is transversely arranged in the box body, and the two ends of the fourth roller are respectively rotatably connected to the box body through bearings, and the axis of the fourth roller is parallel to the axis of the first conveying roller. The first air outlet is arranged at the upper part of the box body, and the first air outlet is a through opening. The second air outlet is arranged at the lower part of the box body, and the second air outlet is arranged corresponding to the first air outlet, and the second air outlet is a through opening. The suction fan is arranged in the first air outlet, and the suction fan is fixedly connected to the box body. The hair dryer is arranged in the second air outlet, and the hair dryer is fixedly connected to the box body.
[0019] According to the above technical solution, the controller controls the fourth motor to start, the blower and the suction fan to start, the material strip passes through the box through the openings on the front and rear sides of the box, and slides on the fourth roller. The fourth roller rotates due to the force of the material strip, the blower absorbs the outside air and blows it into the box to cool the material strip, and the suction fan sucks out the air that absorbs the temperature and water vapor of the material strip in the box and transports it to the outside of the box. The third motor drives the fourth roller to rotate, the third roller drives a number of push plates to rotate around the third roller, a number of push plates drive the roller to rotate, and the roller drives the protective ring to rotate. The plastic masterbatch formed after the material strip is cut falls into the feed hopper and enters the roller from the lower end of the feed hopper. A number of rotating push plates exert a force on the plastic masterbatch entering the roller in the direction of the fourth motor, and at the same time, the inner wall of the roller exerts a rotational force on the plastic masterbatch. Unqualified plastic masterbatch is screened out by a number of screening holes and falls below the roller, and qualified plastic masterbatch slides out from the end of the roller that is closer to the fourth motor.
[0020] By setting the protective ring, the plastic masterbatch entering the drum will not slide off from the end of the drum that is closer to the feed hopper, ensuring that the plastic masterbatch can be screened. By setting a number of push plates, the drum can continuously move toward the end of the drum that is closer to the fourth motor while rolling and screening the plastic masterbatch, improving the screening uniformity and efficiency of the plastic masterbatch.
[0021] Through the arrangement of the box body, the fourth roller, the first air outlet, the second air outlet, the suction fan and the hair dryer, the material strips after the water treatment can be further cooled and dried, effectively reducing the adhesion of the material strips to the cutting knife.
[0022] Preferably, the diameter of the upper port of the feed hopper is larger than the diameter of the lower port of the feed hopper.
[0023] Preferably, the plurality of push plates are arranged obliquely along the rotation direction of the third roller toward a direction away from the fourth motor, and the plurality of push plates are arranged at intervals.
[0024] Preferably, the connection between the bracket and the first pressure frame and the second pressure frame is provided with a limiting hole, the limiting hole is a vertical through hole, and the two limiting holes are respectively slidably connected with the first pressure frame and the second pressure frame.
[0025] According to the above technical solution, the second conveying roller applies force to the first pressure lower end frame, and the upper end of the first pressure frame slides vertically in the slide groove. The second pressing roller applies force to the second pressure lower end frame, and the upper end of the second pressure frame slides vertically in the slide groove. By setting the slide groove, it is ensured that the first pressure frame and the second pressure frame can only slide vertically, and the force of the spring on the first pressure frame is increased through the force of the second conveying roller and the hydraulic cylinder on the second pressure frame through the effective pressure of the second pressing roller on the material strip.
[0026] Preferably, the diameter of the fourth roller is the same as the diameter of the first conveying roller, and the axis of the fourth roller is in the same plane as the axis of the first conveying roller and the axis of the first nip roller.
[0027] Beneficial effects of the utility model:
[0028] 1. Through the first conveying roller, the first motor, the first pressure frame, the spring, the second conveying roller, the first pressing roller, the second motor, the second pressure frame, the hydraulic cylinder, the second pressing roller, the third motor, and the two cutting knives, the material strips of different sizes can be pelletized. Furthermore, through the arrangement of the first roller, the second roller, the drum, the feed hopper, the protective ring, the plurality of push plates, the third roller, and the fourth motor, the plastic masterbatch formed after the material strips are pelletized can be screened, thereby effectively improving the practicability and application scope of the device.
[0029] 2. Through the setting of the box body, the fourth roller, the first air outlet, the second air outlet, the suction fan and the hair dryer, the material strips after water treatment can be further cooled and dried, effectively reducing the adhesion of the material strips to the cutting knife. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 It is a schematic diagram of the side cross-sectional structure of the material strip pelletizing device used for the production of plastic masterbatch;
[0031] Figure 2 It is a front view structural schematic diagram of a material strip pelletizing device used for the production of plastic masterbatch.
[0032] Explanation of the reference numerals: 1. bracket; 2. first conveying roller; 21. first motor; 22. second conveying roller; 23. blower; 25. first pressure frame; 26. spring; 27. suction fan; 28. fourth rotating shaft; 29. hydraulic cylinder; 30. second pressure frame; 31. cutting knife; 32. third motor; 34. second pressing roller; 35. first pressing roller; 36. feeding hopper; 37. protective ring; 38. roller; 39. pushing plate; 40. first roller; 41. third roller; 42. fourth motor; 43. box; 44. second roller. DETAILED DESCRIPTION
[0033] The concept of the present invention and the technical effects produced will be clearly and completely described below in conjunction with the embodiments so as to fully understand the purpose, features and effects of the present invention.
[0034] A material strip pelletizing device for the production of plastic masterbatch, referring to Figure 1 and Figure 2 It includes a bracket 1, a controller, a pelletizing component, and a screening component.
[0035] The support 1 is arranged on the ground. The controller is arranged on one side of the support 1 and is fixedly connected to the support 1. The pelletizing assembly is arranged on the upper part of the support 1 and is fixedly connected to the support 1. The pelletizing assembly is electrically connected to the controller. The screening assembly is arranged on the lower part of the support 1 and is fixedly connected to the support 1. The screening assembly is electrically connected to the controller.
[0036] The pelletizing assembly includes a first conveying roller 2, a first motor 21, a first pressure frame 25, a spring 26, a second conveying roller 22, a cooling box, a first pressing roller 35, a second motor, a second pressure frame 30, a hydraulic cylinder 29, a second pressing roller 34, a third motor 32, and two cutting knives 31. The first conveying roller 2 is transversely arranged on the upper part of the bracket 1, and both ends of the first conveying roller 2 are respectively rotatably connected with the bracket 1 through bearings. The first motor 21 is arranged on one side of the first conveying roller 2, the first motor 21 is fixedly connected to the bracket 1, the rotating shaft of the first motor 21 is fixedly connected to the rotating shaft on one side of the first conveying roller 2, the axis of the rotating shaft of the first motor 21 coincides with the axis of the first conveying roller 2, and the first motor 21 is electrically connected to the controller.
[0037] The first pressure frame 25 is arranged above the first conveying roller 2, and the upper end of the first pressure frame 25 is slidably connected to the bracket 1. The spring 26 is vertically arranged above the first pressure frame 25, the upper end of the spring 26 is fixedly connected to the bracket 1, and the lower end of the spring 26 is fixedly connected to the upper end of the first pressure frame 25. The axis of the spring 26 is perpendicular to the axis of the first conveying roller 2 and is located in the same plane. The second conveying roller 22 is transversely arranged above the first conveying roller 2, and the two ends of the second conveying roller 22 are respectively rotatably connected to the lower end of the first pressure frame 25 through bearings, the axis of the second conveying roller 22 is perpendicular to the axis of the spring 26 and is located in the same plane, and the diameter of the second conveying roller 22 is the same as the diameter of the first conveying roller 2.
[0038] The cooling box is arranged in front of the first conveying roller 2, and the cooling box is fixedly connected to the bracket 1. The first nip roller 35 is arranged transversely in front of the cooling box, and both ends of the first nip roller 35 are rotatably connected to the bracket 1 through bearings, the axis of the first nip roller 35 is parallel to the axis of the first conveying roller 2, and the diameter of the first nip roller 35 is the same as the diameter of the first conveying roller 2. The second motor is arranged on one side of the first nip roller 35, the second motor is fixedly connected to the bracket 1, the second motor shaft is fixedly connected to the shaft on one side of the first nip roller 35, the axis of the second motor shaft coincides with the axis of the first nip roller 35, and the second motor is electrically connected to the controller.
[0039] The second pressure frame 30 is arranged above the first nip roller 35, and the upper end of the second pressure frame 30 is slidably connected to the bracket 1. The hydraulic cylinder 29 is vertically arranged above the second pressure frame 30, the output end of the hydraulic cylinder 29 is fixedly connected to the second pressure frame 30, the other end of the hydraulic cylinder 29 is fixedly connected to the bracket 1, the hydraulic cylinder 29 is electrically connected to the controller, the axis of the hydraulic cylinder 29 is perpendicular to the axis of the first nip roller 35 and is located in the same plane, and the axis of the hydraulic cylinder 29 is perpendicular to the plane where the axis of the first nip roller 35 and the axis of the first conveying roller 2 are located.
[0040] The second nip roller 34 is arranged above the first nip roller 35, and the two ends of the second nip roller 34 are respectively rotatably connected to the lower end of the second pressure frame 30 through bearings, the axis of the second nip roller 34 is perpendicular to the axis of the hydraulic cylinder 29 and is located in the same plane, and the diameter of the second nip roller 34 is the same as the diameter of the first conveying roller 2. The third motor 32 is arranged at the front side of the second pressure frame 30, the third motor 32 is fixedly connected to the bracket 1, the shaft of the third motor 32 is arranged toward the second pressure frame 30, the axis of the shaft of the third motor 32 is perpendicular to the axis of the hydraulic cylinder 29, the axis of the shaft of the third motor 32 is perpendicular to the axis of the first nip roller 35, and the third motor 32 is electrically connected to the controller.
[0041] The two cutting knives 31 are respectively arranged on the circumferential side of the rotating shaft of the third motor 32, and one end of the two cutting knives 31 is respectively fixedly connected to the rotating shaft of the third motor 32. The length of the two cutting knives 31 is greater than the length from the rotating shaft of the third motor 32 to the edge of one end of the first pressing roller 35. The two cutting knives 31 are in the same plane and are perpendicular to the axis of the rotating shaft of the third motor 32.
[0042] When the material strip is pelletized, the material strip is pulled through the first conveyor roller 2 and the second conveyor roller 22, passes through the cooling box, and finally passes through the first pressing roller and the second pressing roller 34. The second conveyor roller 22 is subjected to the upward force of the material strip and moves upward. The second conveyor roller 22 applies force to the first pressure frame 25, and the first pressure frame 25 slides vertically. The spring 26 is contracted by the force of the first pressure frame 25. The controller controls the pressure output by the hydraulic cylinder 29 to the second pressure frame 30, thereby controlling the pressure of the second pressure roller on the material strip. The controller further controls the first motor 21, the second motor, the third motor 32 and the screening assembly to start, and adjusts the speed of the third motor 32 according to actual needs. The first motor 21 drives the first conveyor roller 2 to rotate, the second motor drives the first pressing roller 35 to rotate, and the third motor 32 drives the two cutting knives 31 to rotate around the rotating shaft of the third motor 32. Under the action of the first conveying roller 2 and the first pressing roller 35, the material strips are continuously conveyed toward the third motor 32, and the two rotating blades cut the material strips into plastic masterbatches.
[0043] The first conveying roller 2, the first motor 21, the first pressure frame 25, the spring 26, the second conveying roller 22, the first pressing roller 35, the second motor, the second pressure frame 30, the hydraulic cylinder 29, the second pressing roller 34, the third motor 32, and the two cutting knives 31 can be used to pelletize material strips of different sizes, effectively improving the application range of the pelletizing device for cutting plastic masterbatch. By setting a cooling box, the material strips can be further cooled to reduce the adhesion of the material strips to the cutting knives 31.
[0044] Reference Figure 1The screening assembly includes a first roller 40, a second roller, a drum 38, a feed hopper 36, a protective ring 37, a plurality of push plates 39, a third roller 41, and a fourth motor 42. The first roller 40 is transversely arranged at the lower part of the bracket 1, and both ends of the first roller 40 are rotatably connected to the bracket 1 through bearings, and the axis of the first roller 40 is perpendicular to the axis of the first pressing roller 35. The second roller is transversely arranged on one side of the first roller 40, and the axis of the second roller is parallel to the axis of the first roller 40.
[0045] The roller 38 is arranged above the first roller 40 and the second roller. The roller 38 is rotatably connected to the first roller 40 and the second roller respectively. Both the front and rear sides of the roller 38 are through holes. The side wall of the roller 38 is provided with a plurality of screening holes, and the plurality of screening holes are through holes. The feed hopper 36 is arranged on the side of the roller 38 close to the third motor 32, and is fixedly connected to the bracket 1. The center of the upper end of the feed hopper 36 is located below the center of the first nip roller 35, and the diameter of the upper end of the feed hopper 36 is greater than the length of the first nip roller 35. The protective ring 37 is sleeved on the lower end of the feed hopper 36. The protective ring 37 is annular. The outer ring diameter of the protective ring 37 is the same as the inner diameter of the roller 38. The outer ring edge of the protective ring 37 is fixedly connected to the roller 38, and there is a gap between the inner ring of the protective ring 37 and the lower end of the feed hopper 36. A plurality of push plates 39 are arranged in the roller 38, and one end of the plurality of push plates 39 is fixedly connected to the roller 38 respectively. The third roller 41 is disposed in the drum 38, and the third roller 41 is respectively fixedly connected to the other ends of the plurality of push plates 39 away from the connection between the plurality of push plates 39 and the drum 38, the axis of the third roller 41 coincides with the axis of the drum 38, and the end of the third roller 41 away from the protective ring 37 extends to the outside of the drum 38. The fourth motor 42 is disposed on the side of the drum 38 away from the feed hopper 36, the fourth motor 42 is fixedly connected to the bracket 1, the rotating shaft of the fourth motor 42 is fixedly connected to the third roller 41, and the axis of the rotating shaft of the fourth motor 42 coincides with the axis of the third roller 41.
[0046] Reference Figure 1 The cooling box includes a box body 43, a fourth roller, a first air outlet, a second air outlet, a suction fan 27, and a hair dryer 23. The box body 43 is arranged between the first conveying roller 2 and the first pressing roller 35, the box body 43 is fixedly connected to the bracket 1, and the front and rear sides of the box body 43 are both through openings. The fourth roller is arranged horizontally in the box body 43, and the two ends of the fourth roller are respectively rotatably connected to the box body 43 through bearings, and the axis of the fourth roller is parallel to the axis of the first conveying roller 2. The first air outlet is arranged at the upper part of the box body 43, and the first air outlet is a through opening. The second air outlet is arranged at the lower part of the box body 43, and the second air outlet is arranged corresponding to the first air outlet, and the second air outlet is a through opening. The suction fan 27 is arranged in the first air outlet, and the suction fan 27 is fixedly connected to the box body 43. The hair dryer 23 is arranged in the second air outlet, and the hair dryer 23 is fixedly connected to the box body 43.
[0047] The controller starts the fourth motor 42, the blower 23, and the suction fan 27. The material strip passes through the box body 43 through the through openings on the front and rear sides of the box body 43, and slides on the fourth roller. The fourth roller rotates due to the force of the material strip. The blower 23 absorbs the outside air and blows it into the box body 43 to cool the material strip. The suction fan 27 sucks out the air in the box body 43 that absorbs the temperature and water vapor of the material strip and transports it to the outside of the box body 43. The third motor 32 drives the fourth roller to rotate, the third roller 41 drives the plurality of push plates 39 to rotate around the third roller 41, the plurality of push plates 39 drive the roller 38 to rotate, and the roller 38 drives the protective ring 37 to rotate. The plastic masterbatch formed after the material strips are cut falls into the feed hopper 36, and enters the drum 38 from the lower end of the feed hopper 36. A plurality of rotating push plates 39 exert a force on the plastic masterbatch entering the drum 38 in the direction of the fourth motor 42. At the same time, the inner wall of the drum 38 exerts a rotational force on the plastic masterbatch. Unqualified plastic masterbatch is screened out by a plurality of screening holes and falls under the drum 38. Qualified plastic masterbatch slides out from the end of the drum 38 that is closer to the fourth motor 42.
[0048] By setting the protection ring 37, the plastic masterbatch entering the drum 38 will not slide off from the end of the drum 38 that is closer to the feed hopper 36, ensuring that the plastic masterbatch can be screened. By setting a plurality of push plates 39, the drum 38 continuously moves toward the end of the drum 38 that is closer to the fourth motor 42 while rolling and screening the plastic masterbatch, thereby improving the screening uniformity and efficiency of the plastic masterbatch.
[0049] Through the arrangement of the box body 43 , the fourth roller, the first air outlet, the second air outlet, the suction fan 27 , and the hair dryer 23 , the material strips after the water treatment can be further cooled and dried, thereby effectively reducing the adhesion of the material strips to the cutting blade 31 .
[0050] Reference Figure 1 The diameter of the upper end of the feed hopper 36 is greater than the diameter of the lower end of the feed hopper 36 .
[0051] Reference Figure 1 A plurality of push plates 39 are arranged obliquely along the rotation direction of the third roller 41 toward a direction away from the fourth motor 42 , and a plurality of push plates 39 are arranged at intervals.
[0052] Reference Figure 1 The connection between the bracket 1 and the first pressure frame 25 and the second pressure frame 30 is provided with a limiting hole, which is a vertical through hole. The two limiting holes are slidably connected to the first pressure frame 25 and the second pressure frame 30 respectively.
[0053] The second conveying roller 22 applies a force to the first pressure lower end frame, and the upper end of the first pressure frame 25 slides vertically in the chute. The second pressing roller 34 applies a force to the second pressure lower end frame, and the upper end of the second pressure frame 30 slides vertically in the chute. The setting of the chute ensures that the first pressure frame 25 and the second pressure frame 30 can only slide vertically, and the force of the spring 26 on the first pressure frame 25 is increased through the force of the second conveying roller 22 and the hydraulic cylinder 29 on the second pressure frame 30 through the effective pressure of the second pressing roller 34 on the material strip.
[0054] Reference Figure 1 The diameter of the fourth roller is the same as the diameter of the first conveying roller 2 , and the axis of the fourth roller is in the same plane as the axis of the first conveying roller 2 and the axis of the first nip roller 35 .
[0055] Working principle: Refer to Figure 1When the material strip is pelletized, the material strip is pulled through the first conveying roller 2 and the second conveying roller 22, and the material strip passes through the box body 43 through the through openings on the front and rear sides of the box body 43, and goes around the top of the fourth roller, and finally passes between the first nip roller 35 and the second nip roller 34. The second conveying roller 22 is subjected to the upward force of the material strip and moves upward, and the second conveying roller 22 applies an upward force to the first pressure frame 25, and the first pressure frame 25 slides upward, and the spring 26 is contracted by the force of the first pressure frame 25. The controller controls the pressure output by the hydraulic cylinder 29 to the second pressure frame 30, thereby controlling the pressure of the second pressure roller on the material strip. The controller further controls the first motor 21, the second motor, the third motor 32 and the fourth motor 42, the blower 23, and the suction fan 27 to start, and adjusts the speed of the third motor 32 through the controller according to actual needs, the first motor 21 drives the first conveying roller 2 to rotate, the second motor drives the first nip roller 35 to rotate, and the third motor 32 drives the two cutting knives 31 to rotate around the rotating shaft of the third motor 32. Under the action of the first conveying roller 2 and the first pressing roller 35, the material strip is continuously conveyed toward the third motor 32, and the two rotating blades cut the material strip into plastic masterbatch. At the same time, the material strip slides on the fourth roller, and the fourth roller rotates due to the action of the material strip. The blower 23 absorbs the outside air and blows it into the box 43 to cool the material strip. The suction fan 27 sucks out the air in the box 43 that absorbs the temperature and water vapor of the material strip and conveys it to the outside of the box 43. The fourth motor 42 drives the third roller 41 to rotate, and the third roller 41 drives the plurality of push plates 39 to rotate around the third roller 41, and the plurality of push plates 39 drive the roller 38 to rotate, and the roller 38 drives the protective ring 37 to rotate. The plastic masterbatch formed after the material strips are cut falls into the feed hopper 36, and enters the drum 38 from the lower end of the feed hopper 36. A plurality of rotating push plates 39 exert a force on the plastic masterbatch entering the drum 38 in the direction of the fourth motor 42. At the same time, the inner wall of the drum 38 exerts a rotational force on the plastic masterbatch. Unqualified plastic masterbatch is screened out by a plurality of screening holes and falls under the drum 38. Qualified plastic masterbatch slides out from the end of the drum 38 that is closer to the fourth motor 42.
[0056] The above embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, other embodiments obtained by technicians in this field without creative work all fall within the scope of protection of the utility model.
Claims
1. A material strip pelletizing device for the production of plastic masterbatch, characterized in that: It comprises a bracket (1), a controller, a pelletizing component, and a screening component; The support (1) is arranged on the ground; the controller is arranged on one side of the support (1) and is fixedly connected to the support (1); the pelletizing assembly is arranged on the upper part of the support (1) and is fixedly connected to the support (1), and the pelletizing assembly is electrically connected to the controller; the screening assembly is arranged on the lower part of the support (1) and is fixedly connected to the support (1), and the screening assembly is electrically connected to the controller; The pelletizing assembly comprises a first conveying roller (2), a first motor (21), a first pressure frame (25), a spring (26), a second conveying roller (22), a cooling box, a first pressing roller (35), a second motor, a second pressure frame (30), a hydraulic cylinder (29), a second pressing roller (34), a third motor (32), and two cutting knives (31); The first conveying roller (2) is transversely arranged on the upper part of the bracket (1), and both ends of the first conveying roller (2) are rotatably connected to the bracket (1) via bearings; The first motor (21) is arranged on one side of the first conveying roller (2), the first motor (21) is fixedly connected to the bracket (1), the rotating shaft of the first motor (21) is fixedly connected to the rotating shaft on one side of the first conveying roller (2), the axis of the rotating shaft of the first motor (21) coincides with the axis of the first conveying roller (2), and the first motor (21) is electrically connected to the controller; The first pressure frame (25) is arranged above the first conveying roller (2), and the upper end of the first pressure frame (25) is slidably connected to the bracket (1); The spring (26) is vertically arranged above the first pressure frame (25), the upper end of the spring (26) is fixedly connected to the bracket (1), the lower end of the spring (26) is fixedly connected to the upper end of the first pressure frame (25), and the axis of the spring (26) is perpendicular to the axis of the first conveying roller (2) and is located in the same plane; The second conveying roller (22) is arranged transversely above the first conveying roller (2), the two ends of the second conveying roller (22) are respectively rotatably connected to the lower end of the first pressure frame (25) through bearings, the axis of the second conveying roller (22) is perpendicular to the axis of the spring (26) and is located in the same plane, and the diameter of the second conveying roller (22) is the same as that of the first conveying roller (2); The cooling box is arranged on the front side of the first conveying roller (2), and the cooling box is fixedly connected to the bracket (1); The first pressing roller (35) is transversely arranged at the front side of the cooling box, and the two ends of the first pressing roller (35) are rotatably connected to the bracket (1) through bearings, the axis of the first pressing roller (35) is parallel to the axis of the first conveying roller (2), and the diameter of the first pressing roller (35) is the same as the diameter of the first conveying roller (2); The second motor is arranged on one side of the first nip roller (35), the second motor is fixedly connected to the bracket (1), the second motor shaft is fixedly connected to the shaft on one side of the first nip roller (35), the axis of the second motor shaft coincides with the axis of the first nip roller (35), and the second motor is electrically connected to the controller; The second pressure frame (30) is arranged above the first pressing roller (35), and the upper end of the second pressure frame (30) is slidably connected to the bracket (1); The hydraulic cylinder (29) is vertically arranged above the second pressure frame (30), the output end of the hydraulic cylinder (29) is fixedly connected to the second pressure frame (30), the other end of the hydraulic cylinder (29) is fixedly connected to the bracket (1), the hydraulic cylinder (29) is electrically connected to the controller, the axis of the hydraulic cylinder (29) is perpendicular to the axis of the first nip roller (35) and is located in the same plane, and the axis of the hydraulic cylinder (29) is perpendicular to the plane where the axis of the first nip roller (35) and the axis of the first conveying roller (2) are located; The second pressing roller (34) is arranged above the first pressing roller (35), and the two ends of the second pressing roller (34) are rotatably connected to the lower end of the second pressure frame (30) through bearings respectively, the axis of the second pressing roller (34) is perpendicular to the axis of the hydraulic cylinder (29) and is located in the same plane, and the diameter of the second pressing roller (34) is the same as the diameter of the first conveying roller (2); The third motor (32) is arranged at the front side of the second pressure frame (30), the third motor (32) is fixedly connected to the bracket (1), the rotating shaft of the third motor (32) is arranged toward the second pressure frame (30), the rotating shaft axis of the third motor (32) is perpendicular to the axis of the hydraulic cylinder (29), the rotating shaft axis of the third motor (32) is perpendicular to the axis of the first pressing roller (35), and the third motor (32) is electrically connected to the controller; The two cutting knives (31) are respectively arranged on the circumferential side of the rotating shaft of the third motor (32), one end of the two cutting knives (31) is respectively fixedly connected to the rotating shaft of the third motor (32), the length of the two cutting knives (31) is greater than the length from the rotating shaft of the third motor (32) to the edge of one end of the first pressing roller (35), and the two cutting knives (31) are in the same plane and perpendicular to the axis of the rotating shaft of the third motor (32).
2. A material strip pelletizing device for producing plastic masterbatch according to claim 1, characterized in that The screening assembly comprises a first roller (40), a second roller, a drum (38), a feed hopper (36), a protective ring (37), a plurality of push plates (39), a third roller (41), and a fourth motor (42); The first roller (40) is transversely arranged at the lower part of the bracket (1), and both ends of the first roller (40) are rotatably connected to the bracket (1) through bearings, and the axis of the first roller (40) is perpendicular to the axis of the first nip roller (35); The second roller is transversely arranged on one side of the first roller (40), and the axis of the second roller is parallel to the axis of the first roller (40); The roller (38) is arranged above the first roller (40) and the second roller, and the roller (38) is rotatably connected to the first roller (40) and the second roller respectively, and both the front and rear sides of the roller (38) are through openings; a plurality of screening holes are arranged on the side wall of the roller (38), and a plurality of the screening holes are through holes; The feed hopper (36) is arranged on a side of the roller (38) close to the third motor (32), and is fixedly connected to the bracket (1); the center of the upper end of the feed hopper (36) is located below the center of the first nip roller (35); and the diameter of the upper end of the feed hopper (36) is greater than the length of the first nip roller (35); The protective ring (37) is sleeved on the lower end of the feed hopper (36), the protective ring (37) is in the shape of a ring, the outer ring diameter of the protective ring (37) is the same as the inner diameter of the roller (38), the outer ring edge of the protective ring (37) is fixedly connected to the roller (38), and there is a gap between the inner ring of the protective ring (37) and the lower end of the feed hopper (36); A plurality of the pushing plates (39) are arranged in the roller (38), and one end of each of the pushing plates (39) is fixedly connected to the roller (38); The third roller (41) is arranged in the drum (38), and the third roller (41) is respectively fixedly connected to the other end of the plurality of pushing plates (39) away from the connection between the plurality of pushing plates (39) and the drum (38), the axis of the third roller (41) coincides with the axis of the drum (38), and the end of the third roller (41) away from the protective ring (37) extends to the outside of the drum (38); The fourth motor (42) is arranged on a side of the roller (38) away from the feed hopper (36), the fourth motor (42) is fixedly connected to the bracket (1), the rotating shaft of the fourth motor (42) is fixedly connected to the third roller (41), and the axis of the rotating shaft of the fourth motor (42) coincides with the axis of the third roller (41).
3. A material strip pelletizing device for producing plastic masterbatch according to claim 1, characterized in that The cooling box comprises a box body (43), a fourth roller, a first air outlet, a second air outlet, a suction fan (27), and a blower (23); The box body (43) is arranged between the first conveying roller (2) and the first pressing roller (35), the box body (43) is fixedly connected to the bracket (1), and both the front and rear sides of the box body (43) are through openings; The fourth roller is transversely arranged in the box (43), and both ends of the fourth roller are rotatably connected to the box (43) via bearings, and the axis of the fourth roller is parallel to the axis of the first conveying roller (2); The first air outlet is arranged at the upper part of the box body (43), and the first air outlet is a through opening; The second air outlet is arranged at the lower part of the box body (43), the second air outlet is arranged corresponding to the first air outlet, and the second air outlet is a through-opening; The suction fan (27) is arranged in the first air outlet, and the suction fan (27) is fixedly connected to the box (43); The hair dryer (23) is arranged in the second air outlet, and the hair dryer (23) is fixedly connected to the box (43).
4. A material strip pelletizing device for producing plastic masterbatch according to claim 2, characterized in that :The diameter of the upper end of the feed hopper (36) is larger than the diameter of the lower end of the feed hopper (36).
5. A material strip pelletizing device for producing plastic masterbatch according to claim 2, characterized in that A plurality of the pushing plates (39) are arranged obliquely along the rotation direction of the third roller (41) in a direction away from the fourth motor (42), and a plurality of the pushing plates (39) are arranged at intervals.
6. A material strip pelletizing device for producing plastic masterbatch according to claim 2, characterized in that : The connection between the bracket (1) and the first pressure frame (25) and the second pressure frame (30) is provided with a limiting hole, and the limiting hole is a vertical through hole; the two limiting holes are respectively slidably connected to the first pressure frame (25) and the second pressure frame (30).
7. A material strip pelletizing device for producing plastic masterbatch according to claim 3, characterized in that The diameter of the fourth roller is the same as the diameter of the first conveying roller (2); the axis of the fourth roller is in the same plane as the axis of the first conveying roller (2) and the axis of the first pressing roller (35).