Grinding equipment for plastic color master batch production

Abstract

The invention discloses grinding equipment for plastic color master batch production, and relates to the technical field of color master batch production, the grinding equipment comprises a conical block, the conical block is rotationally connected through a base, a supporting column is fixedly connected to an inner cavity of the conical block, a rotating plate is fixedly connected to the top of the supporting column, and a through hole is formed in the outer side of the rotating plate; a round rod is fixedly connected to the top of the conical block, a gear is fixedly connected to the end, away from the conical block, of the round rod, a positioning plate is fixedly connected to the bottom of the rotating shaft, and a square hole is formed in the outer side of the positioning plate. According to the grinding equipment for plastic color master batch production, the differential speed changes along with the rotation speed of the motor through the change of the rotation speed of the motor, then the opening degree between the square hole and the through hole is changed, the material passing sectional area is adjusted, the discharging speed is changed, and when the opening degree is large, the discharging speed is high, and when the opening degree is small, the discharging speed is low; therefore, the blanking speed can be adjusted according to the change of the production process to adapt to different production conditions.

Description

Technical Field

[0001] The invention relates to the technical field of masterbatch production, in particular to a grinding device for producing plastic masterbatch. Background Art

[0002] Masterbatch, also known as color seed or masterbatch, is a new type of colorant specially used for polymer materials, also known as pigment preparation. Masterbatch is mainly used in plastics. Masterbatch is composed of three basic elements: pigment or dye, carrier and additive. It is an aggregate obtained by uniformly attaching an extraordinary amount of pigment to the resin, which can be called pigment concentrate. Therefore, its tinting power is higher than the pigment itself. When processing, a small amount of masterbatch is mixed with uncolored resin to achieve the colored resin or product with the designed pigment concentration.

[0003] During the production and processing of masterbatches, it is necessary to grind the masterbatches with disordered large particle sizes. During the injection, the raw materials for masterbatch production are usually put into the grinding chamber uniformly and then ground uniformly. The raw materials are piled together, the grinding area becomes smaller, and the grinding efficiency is reduced. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A grinding device for producing plastic masterbatch, comprising a base, the base having a pillar for supporting the device, a bracket fixedly connected to the top of the base, a motor fixedly connected to the top of the bracket, a transmission member fixedly connected to the output end of the motor, a housing fixedly connected to the middle of the bracket, and the housing is provided to limit and protect the gear and the transmission member; A crushing assembly, wherein the crushing assembly is rotatably connected to the shell, the shell is connected to the motor through a transmission member, and the crushing assembly is located in the middle of the base; A feeding assembly, wherein the feeding assembly is fixedly connected to the housing, the bottom of the feeding assembly is rotatably connected to the crushing assembly, a belt is provided on the outside of the feeding assembly, and the feeding assembly is connected to the transmission member through the belt; The crushing assembly includes a conical block, which is rotatably connected to a base, the inner cavity of the conical block is fixedly connected to a support column, and the top of the support column is fixedly connected to a rotating plate. In an initial state, the through hole on the rotating plate and the square hole on the positioning plate are staggered, and at this time, the material cannot enter the interior of the crushing chamber through the connecting cylinder. The motor drives the rotating plate and the positioning plate to rotate through the transmission member. Since the transmission member and the rotating plate are gear-driven, and the positioning plate is belt-driven, the transmission method is different, so that there is a differential speed between the rotating plate and the positioning plate, so that the square hole will overlap with the through hole. At this time, the material is discharged through the square hole and the through hole, so that the differential speed can change with the speed of the motor through the change of the motor speed, thereby changing the opening between the square hole and the through hole, adjusting the cross-sectional area of ​​the material passing, thereby changing the discharge speed. When the opening is large, the discharge speed is fast, and when the opening is small, the discharge speed is slow, so that the discharge speed can be adjusted according to the change of the production process to adapt to different production conditions. The outer side of the rotating plate is provided with a through hole, and the top of the conical block is fixedly connected with a round rod, and the end of the round rod away from the conical block is fixedly connected with a gear; Preferably, the feeding assembly includes a cylinder, which is fixedly connected to the middle of the shell, and a lower hopper is fixedly connected to the top of the cylinder. A rotating shaft is arranged inside the cylinder, and the rotating shaft is rotatably connected to the bracket, and materials are added to the lower hopper. The motor is connected to an external power supply to work, and the motor drives the transmission member to rotate, so that the gear meshing with the transmission member rotates, thereby the gear drives the conical block to rotate, and the conical block drives the internal support column and the rotating plate to rotate. At the same time, the transmission member drives the roller to rotate through the belt, and the roller drives the rotating shaft to rotate, so that the rotating shaft drives the spiral plate to rotate, and the material in the lower hopper is discharged evenly with the rotation of the spiral plate, ensuring that the material is evenly distributed in the crushing chamber, so that the crushing knife The tool or grinding disc can cut and grind the masterbatch more evenly, so as to obtain a crushed product with more uniform particle size and more stable quality. A roller is fixedly connected to the outer side of the top of the rotating shaft, and the roller is connected to the transmission member through a belt drive. A spiral plate is fixedly connected to the outer side of the rotating shaft, and a crushing rod is fixedly connected to the outer side of the spiral plate. As the spiral plate moves, the material will collide with the crushing rod, thereby performing a preliminary crushing process on the material, facilitating subsequent grinding and improving the grinding accuracy of the equipment. The outer side of the spiral plate is rotatably connected to the inner wall of the cylinder, and a positioning plate is fixedly connected to the bottom of the rotating shaft, and a square hole is opened on the outer side of the positioning plate.

[0005] Preferably, a protective cover is fixedly connected to the middle of the top of the base. By arranging the protective cover in the gap between the conical block and the supporting block, the fine masterbatch dust generated during the crushing process can be effectively blocked from escaping into the working environment, thereby greatly reducing the dust concentration in the air, improving the air quality, and reducing the harm of dust to the health of operators. The protective cover is arranged in a ring around the crushing assembly as the center, the bracket is configured as a gantry, and there are two transmission parts, which are symmetrically arranged around the crushing assembly as the center.

[0006] Preferably, a connecting cylinder is fixedly connected to the bottom of the cylinder, the connecting cylinder is rotatably connected to the conical block, the rotating plate is located below the positioning plate, and the outer side of the rotating plate is rotatably connected to the inner wall of the connecting cylinder, and the square holes and through holes are alternately arranged.

[0007] Preferably, a diverter plate is fixedly connected to the inner wall of the connecting cylinder, and the material falls into the connecting cylinder through the cylinder. The material is dispersed and discharged by setting a plurality of diverter plates to avoid accumulation of the material inside the crushing chamber. There are multiple diverter plates, and the multiple diverter plates are evenly distributed with the rotating shaft as the center, and the diverter plates are located below the rotating plate.

[0008] Preferably, grinding balls are fixedly connected to the outer side of the conical block, and there are multiple grinding balls. The multiple grinding balls are arranged in the direction of the generatrix of the conical block, and the sizes of the grinding balls decrease from top to bottom. A scraper is fixedly connected to the outer side of the conical block, and the conical block drives the scraper to rotate, so that the scraper cleans the outer side of the convex strip, preventing the continuous wear and corrosion of the grinding disk by residual substances, reducing surface damage, thereby extending the service life of the convex strip, and at the same time ensuring effective contact between the convex strip and the material, improving the energy transfer efficiency, so that each grinding operation can maintain relatively stable production efficiency.

[0009] Preferably, a discharge hole is opened on the outer side of the conical block, and the discharge hole passes through the conical block. The discharge hole, scraper and grinding balls are alternately arranged on the outer side of the conical block. A bent plate is fixedly connected to the bottom of the support column. By setting the bent plate, the material enters the discharge hole along the bent plate under the action of centrifugal force, which plays a guiding role. A screening assembly is fixedly connected to the outer side of the support column, and the screening assembly is located in the inner cavity of the conical block. The support column is fixedly connected to a limiting assembly near the inner wall of the discharge hole.

[0010] Preferably, the screening assembly includes a fixed plate, and the material falls onto the fixed plate inside the conical block through the connecting cylinder. By setting the filtering holes, the large-volume material remains on the top of the fixed plate, and then enters the inside of the discharge hole under the action of centrifugal force, so that the large-volume material enters the larger gap between the conical block and the supporting block, and then the material can be classified according to the particle size, and then the materials of different particle size levels can be ground in a targeted manner, so that the particle size distribution of the final product can be more concentrated and uniform. The fixed plate is fixedly connected to the supporting column, and the middle part of the fixed plate is set to be upwardly convex, and the edge of the fixed plate is It is set to be concave downward, and the top of the fixed plate is fixedly connected with a guide plate. The guide plate arranged on the fixed plate allows the material to disperse and move on the fixed plate, so that the material with a smaller volume can pass through the fixed plate through the filter hole, avoiding material accumulation and resulting in poor screening effect. The material of the guide plate is rubber, the guide plate is set to be a V-shaped block, and the opening of the guide plate is located on the side away from the support column. There are multiple guide plates, and the multiple guide plates are evenly distributed with the support column as the center. The top of the fixed plate is provided with a filter hole, and the filter hole is arranged in the middle of adjacent guide plates.

[0011] Preferably, the limiting assembly includes an extension block, which is fixedly connected to the inner wall of the conical block, and a rotating rod is fixedly connected to the bottom of the extension block. By arranging a baffle and a rotating rod, the entry of smaller materials into the discharge hole is reduced, unnecessary over-grinding is reduced, time and energy are saved, and the overall production efficiency is improved. The rotating rod is located at the feed of the discharge hole, and the outer side of the rotating rod is fixedly connected to a spring plate, and the end of the spring plate away from the rotating rod is fixedly connected to the extension block, and the outer side of the extension block is fixedly connected to a baffle.

[0012] Preferably, the base includes a support block, a feed hole is provided inside the support block, and a conical hole is provided in the middle of the base. The material falls into the inner cavity of the conical block through the connecting tube. As the conical block rotates, the material enters the gap between the conical block and the support block through the discharge hole under the action of centrifugal force. The material is ground under the mutual extrusion and shearing between the grinding balls and the convex strips. By designing that the gap between the grinding balls and the convex strips gradually decreases from top to bottom, as the material gradually moves toward the tip, the contact area gradually decreases, and the grinding pressure increases, thereby achieving finer grinding and particle size control, and can also reduce the blockage and retention of the material during the grinding process. The ground material is discharged from the feed hole. The inner wall of the conical hole is fixedly connected with convex strips, and the convex strips and the grinding balls are alternately arranged.

[0013] The present invention provides a grinding device for producing plastic masterbatch, which has the following beneficial effects: 1. The grinding equipment for the production of plastic masterbatch changes the motor speed so that the differential speed changes with the motor speed, thereby changing the opening between the square hole and the through hole, adjusting the cross-sectional area of ​​the material passing through, and thus changing the feeding speed. When the opening is large, the feeding speed is fast, and when the opening is small, the feeding speed is slow. Therefore, the feeding speed can be adjusted according to the changes in the production process to adapt to different production conditions.

[0014] 2. The grinding equipment for the production of plastic masterbatch drives the spiral plate to rotate through the rotating shaft. The material inside the hopper is discharged evenly with the rotation of the spiral plate, ensuring that the material is evenly distributed in the crushing chamber, so that the crushing tool or grinding disc can cut and grind the masterbatch more evenly, thereby obtaining a crushed product with more uniform particle size and more stable quality.

[0015] 3. The grinding equipment for the production of plastic masterbatch drives the scraper to rotate through the conical block, so that the scraper cleans the outside of the convex strip, prevents the residual material from continuously wearing and corroding the grinding disc, reduces surface damage, and thus extends the service life of the convex strip. At the same time, it ensures effective contact between the convex strip and the material, and improves the energy transfer efficiency.

[0016] Fourth, the grinding equipment for the production of plastic masterbatch sets filtering holes so that large materials remain on the top of the fixed plate and then enter the discharge hole under the action of centrifugal force, so that the large materials enter the larger gap between the conical block and the support block, and then the materials can be classified according to the particle size, and then materials of different particle size levels can be ground in a targeted manner.

[0017] 5. The grinding equipment for the production of plastic masterbatch is designed with the gap between the grinding balls and the convex strips gradually decreasing from top to bottom. As the material gradually moves toward the tip, the contact area gradually decreases and the grinding pressure increases, thereby achieving finer grinding and particle size control. It can also reduce the blockage and retention of materials during the grinding process, and the ground material is discharged from the discharge hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the external structure of a grinding device for producing plastic masterbatch according to the present invention; Figure 2 It is a schematic diagram of the structure of a partial cross-sectional view of the present invention; Figure 3 It is a schematic diagram of the structure of a partial cross-sectional view of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the base of the present invention; Figure 5 This is a schematic diagram of the structure of the crushing assembly of the present invention; Figure 6 It is a schematic diagram of the partial structure of the crushing assembly of the present invention; Figure 7It is a schematic diagram of the structure of a partial cross-sectional view of the crushing assembly of the present invention; Figure 8 For the present invention Figure 7 The structure diagram of the enlarged figure at A in the middle; Fig. 9 It is a schematic diagram of the structure of the feed assembly of the present invention; Fig.10 It is a schematic diagram of the cross-sectional structure of the feed assembly of the present invention.

[0019] In the figure: 1, base; 11, support block; 12, discharge hole; 13, conical hole; 14, convex strip; 2, bracket; 3, motor; 4, crushing assembly; 41, conical block; 42, discharge hole; 43, support column; 44, rotating plate; 45, screening assembly; 451, fixing plate; 452, guide plate; 453, filter hole; 46, limit assembly; 461, extension block; 462, baffle; 463, rotating rod; 4 64. Spring plate; 47. Grinding ball; 48. Scraper; 49. Round rod; 410. Gear; 411. Bend plate; 412. Through hole; 5. Feed assembly; 51. Cylinder; 52. Lower hopper; 53. Rotating shaft; 54. Roller; 55. Connecting cylinder; 56. Spiral plate; 57. Positioning plate; 58. Square hole; 59. Diverter plate; 510. Crushing rod; 6. Protective cover; 7. Transmission member; 8. Belt; 9. Housing. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0021] The first embodiment, as Figures 1 to 10 As shown, the present invention provides a technical solution: a grinding device for producing plastic masterbatch, comprising a base 1, the base 1 having a pillar for supporting the device, a bracket 2 fixedly connected to the top of the base 1, a motor 3 fixedly connected to the top of the bracket 2, a transmission member 7 fixedly connected to the output end of the motor 3, a housing 9 fixedly connected to the middle of the bracket 2, and the housing 9 is provided to limit and protect the gear 410 and the transmission member 7; A crushing assembly 4, which is rotatably connected to the housing 9, and the housing 9 is connected to the motor 3 via a transmission member 7, and the crushing assembly 4 is located in the middle of the base 1; A feeding assembly 5, the feeding assembly 5 is fixedly connected to the housing 9, the bottom of the feeding assembly 5 is rotatably connected to the crushing assembly 4, a belt 8 is provided on the outside of the feeding assembly 5, and the feeding assembly 5 is connected to the transmission member 7 through the belt 8; The crushing assembly 4 includes a conical block 41, which is rotatably connected to the base 1. The inner cavity of the conical block 41 is fixedly connected to a support column 43, and the top of the support column 43 is fixedly connected to a rotating plate 44. In the initial state, the through hole 412 on the rotating plate 44 is staggered with the square hole 58 on the positioning plate 57. At this time, the material cannot enter the inside of the crushing chamber through the connecting tube 55. The motor 3 drives the rotating plate 44 and the positioning plate 57 to rotate through the transmission member 7. Since the transmission member 7 and the rotating plate 44 are gear-driven and the positioning plate 57 are belt-driven, the rotating plate 44 is driven by a different transmission method. There is a speed differential between 44 and the positioning plate 57, so that the square hole 58 will overlap with the through hole 412. At this time, the material is discharged through the square hole 58 and the through hole 412, so that the speed of the motor 3 can be changed, so that the speed differential changes with the speed of the motor 3, and then the overlap rate of the square hole 58 and the through hole 412 changes, so that the material discharge speed can be adjusted according to the change of the production process to adapt to different production conditions. The outer side of the rotating plate 44 is provided with a through hole 412, and the top of the conical block 41 is fixedly connected to the round rod 49, and the end of the round rod 49 away from the conical block 41 is fixedly connected to the gear 410; The feeding assembly 5 includes a cylinder 51, which is fixedly connected to the middle of the shell 9, and a lower hopper 52 is fixedly connected to the top of the cylinder 51. A rotating shaft 53 is arranged inside the cylinder 51, and the rotating shaft 53 is rotatably connected to the bracket 2. The material is added to the lower hopper. The motor 3 is connected to an external power supply to work, and the motor 3 drives the transmission member 7 to rotate, so that the gear 410 meshing with the transmission member 7 rotates, so that the gear 410 drives the cone block 41 to rotate, and the cone block 41 drives the internal support column 43 and the rotating plate 44 to rotate. At the same time, the transmission member 7 drives the roller 54 to rotate through the belt 8, and the roller 54 drives the rotating shaft 53 to rotate, so that the rotating shaft 53 drives the spiral plate 56 to rotate, and the material inside the lower hopper 52 is discharged evenly with the rotation of the spiral plate 56, ensuring that the material is in the crushing chamber. The material is evenly distributed inside, so that the crushing tool or grinding disc can cut and grind the masterbatch more evenly, so as to obtain a crushed product with more uniform particle size and more stable quality. The top outer side of the rotating shaft 53 is fixedly connected with a roller 54, and the roller 54 is connected to the transmission member 7 through a belt 8. The outer side of the rotating shaft 53 is fixedly connected with a spiral plate 56, and the outer side of the spiral plate 56 is fixedly connected with a crushing rod 510. As the spiral plate 56 moves, the material will collide with the crushing rod 510, so as to perform preliminary crushing on the material, which is convenient for subsequent grinding and improves the grinding accuracy of the equipment. The outer side of the spiral plate 56 is rotatably connected to the inner wall of the cylinder 51, and the bottom of the rotating shaft 53 is fixedly connected with a positioning plate 57, and a square hole 58 is opened on the outer side of the positioning plate 57.

[0022] A protective cover 6 is fixedly connected to the middle of the top of the base 1. By arranging the protective cover 6 at the gap between the conical block 41 and the support block 11, the fine masterbatch dust generated during the crushing process can be effectively blocked from escaping into the working environment, thereby greatly reducing the dust concentration in the air, improving the air quality, and reducing the harm of dust to the health of operators. The protective cover 6 is arranged in a ring around the crushing component 4 as the center, the bracket 2 is configured as a gantry, and there are two transmission members 7, which are symmetrically arranged around the crushing component 4 as the center.

[0023] A connecting tube 55 is fixedly connected to the bottom of the cylinder 51, and the connecting tube 55 is rotatably connected to the conical block 41. The rotating plate 44 is located below the positioning plate 57, and the outer side of the rotating plate 44 is rotatably connected to the inner wall of the connecting tube 55. The square holes 58 and the through holes 412 are alternately arranged.

[0024] A diverter plate 59 is fixedly connected to the inner wall of the connecting cylinder 55. The material falls into the connecting cylinder 55 through the cylinder 51. The material is dispersed and discharged through the arrangement of multiple diverter plates 59 to prevent the material from accumulating inside the crushing chamber. There are multiple diverter plates 59, and the multiple diverter plates 59 are evenly distributed around the rotating shaft 53. The diverter plates 59 are located below the rotating plate 44.

[0025] The second embodiment is based on the first embodiment. Figures 7 and 8 As shown, grinding balls 47 are fixedly connected to the outer side of the conical block 41. There are multiple grinding balls 47, which are arranged in the generatrix direction of the conical block 41, and the sizes of the grinding balls 47 decrease from top to bottom. A scraper 48 is fixedly connected to the outer side of the conical block 41. The conical block 41 drives the scraper 48 to rotate, so that the scraper 48 cleans the outer side of the convex strip 14 to prevent the residual material from continuously wearing and corroding the grinding disc, reducing surface damage, thereby extending the service life of the convex strip 14, and at the same time ensuring effective contact between the convex strip 14 and the material, improving the energy transfer efficiency, so that each grinding operation can maintain a relatively stable production efficiency.

[0026] A discharge hole 42 is provided on the outer side of the conical block 41, and the discharge hole 42 penetrates the conical block 41. The discharge hole 42, the scraper 48 and the grinding ball 47 are alternately arranged on the outer side of the conical block 41. A bent plate 411 is fixedly connected to the bottom of the support column 43. By setting the bent plate 411, the material enters the discharge hole 42 along the bent plate 411 under the action of centrifugal force, which plays a guiding role. A screening component 45 is fixedly connected to the outer side of the support column 43, and the screening component 45 is located in the inner cavity of the conical block 41. A limiting component 46 is fixedly connected to the inner wall of the support column 43 near the discharge hole 42.

[0027] The screening assembly 45 includes a fixed plate 451. The material falls onto the fixed plate 451 inside the conical block 41 through the connecting tube 55. By setting the filtering hole 453, the large-volume material remains on the top of the fixed plate 451, and then enters the discharge hole 42 under the action of centrifugal force, so that the large-volume material enters the larger gap between the conical block 41 and the support block 11, and then the material can be classified according to the particle size, and then the materials of different particle size levels can be ground in a targeted manner, so that the particle size distribution of the final product can be more concentrated and uniform. The fixed plate 451 is fixedly connected to the support column 43, the middle part of the fixed plate 451 is set to be upwardly convex, and the edge of the fixed plate 451 is set to be downwardly concave. A guide plate 452 is fixedly connected to the top of the fixed plate 451. The guide plate 452 arranged on the fixed plate 451 allows the material to disperse and move on the fixed plate 451, so that the material with a smaller volume can pass through the fixed plate 451 through the filter hole 453, avoiding material accumulation and resulting in poor screening effect. The material of the guide plate 452 is rubber, and the guide plate 452 is set as a V-shaped block, and the opening of the guide plate 452 is located on the side away from the support column 43. There are multiple guide plates 452, and the multiple guide plates 452 are evenly distributed with the support column 43 as the center. A filter hole 453 is opened on the top of the fixed plate 451, and the filter hole 453 is set in the middle of adjacent guide plates 452.

[0028] The limiting assembly 46 includes an extension block 461, which is fixedly connected to the inner wall of the conical block 41. The bottom of the extension block 461 is fixedly connected to a rotating rod 463. By arranging a baffle 462 and a rotating rod 463, the entry of smaller materials into the discharge hole 42 is reduced, unnecessary over-grinding is reduced, time and energy are saved, and the overall production efficiency is improved. The rotating rod 463 is located at the feed point of the discharge hole 42, and the outer side of the rotating rod 463 is fixedly connected to a spring plate 464. The end of the spring plate 464 away from the rotating rod 463 is fixedly connected to the extension block 461, and the outer side of the extension block 461 is fixedly connected to a baffle 462.

[0029] The third embodiment is based on the first and second embodiments. Figure 4As shown, the base 1 includes a support block 11, a feed hole 12 is provided inside the support block 11, a conical hole 13 is provided in the middle of the base 1, and the material falls into the inner cavity of the conical block 41 through the connecting tube 55. As the conical block 41 rotates, the material enters the gap between the conical block 41 and the support block 11 through the discharge hole 42 under the action of centrifugal force, and the material is ground under the mutual extrusion and shearing between the grinding balls 47 and the convex strips 14. By designing that the gap between the grinding balls 47 and the convex strips 14 gradually decreases from top to bottom, as the material gradually moves toward the tip, the contact area gradually decreases, and the grinding pressure increases, thereby achieving finer grinding and particle size control, and can also reduce the clogging and retention of the material during the grinding process. The ground material is discharged from the feed hole 12, and the inner wall of the conical hole 13 is fixedly connected with the convex strips 14, and the convex strips 14 and the grinding balls 47 are alternately arranged.

[0030] When in use, materials are added into the lower hopper, and the motor 3 is connected to an external power supply to work. The motor 3 drives the transmission member 7 to rotate, so that the gear 410 meshing with the transmission member 7 rotates, and the gear 410 drives the conical block 41 to rotate, and the conical block 41 drives the internal support column 43 and the rotating plate 44 to rotate. At the same time, the transmission member 7 drives the roller 54 to rotate through the belt 8, and the roller 54 drives the rotating shaft 53 to rotate, so that the rotating shaft 53 drives the spiral plate 56 to rotate, and the material inside the lower hopper 52 is discharged evenly with the rotation of the spiral plate 56.

[0031] The through hole 412 on the rotating plate 44 and the square hole 58 on the positioning plate 57 are arranged in an offset manner. At this time, the material cannot enter the interior of the crushing chamber through the connecting tube 55. The motor 3 drives the rotating plate 44 and the positioning plate 57 to rotate through the transmission member 7. Since the transmission member 7 and the rotating plate 44 are gear-driven and the positioning plate 57 are belt-driven, the transmission method is different, so that there is a differential speed between the rotating plate 44 and the positioning plate 57, so that the square hole 58 will coincide with the through hole 412. At this time, the material is discharged through the square hole 58 and the through hole 412.

[0032] The material falls onto the fixed plate 451 inside the conical block 41 through the connecting tube 55. By setting the filtering hole 453, the large-volume material remains on the top of the fixed plate 451, and then enters the discharge hole 42 under the action of centrifugal force, so that the large-volume material enters the larger gap between the conical block 41 and the supporting block 11, and then the material can be classified according to the particle size, and then the materials of different particle size grades can be ground in a targeted manner, so that the particle size distribution of the final product can be more concentrated and uniform.

[0033] The material falls into the inner cavity of the conical block 41 through the connecting tube 55. As the conical block 41 rotates, the material enters the gap between the conical block 41 and the support block 11 through the discharge hole 42 under the action of centrifugal force. The material is ground under the mutual extrusion and shearing between the grinding balls 47 and the convex strips 14. The gap between the grinding balls 47 and the convex strips 14 gradually decreases from top to bottom. As the material gradually moves toward the tip, the contact area gradually decreases and the grinding pressure increases, thereby achieving finer grinding and particle size control. The ground material is discharged from the discharge hole 12.

[0034] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A grinding device for producing plastic masterbatch, characterized in that: include: A base (1), the base (1) having a support column for supporting the device, the top of the base (1) being fixedly connected to a bracket (2), the top of the bracket (2) being fixedly connected to a motor (3), the output end of the motor (3) being fixedly connected to a transmission member (7), and the middle of the bracket (2) being fixedly connected to a housing (9); A crushing assembly (4), the crushing assembly (4) being rotatably connected to the housing (9), the housing (9) being connected to the motor (3) via a transmission member (7), and the crushing assembly (4) being located in the middle of the base (1); A feeding assembly (5), the feeding assembly (5) being fixedly connected to the housing (9), the bottom of the feeding assembly (5) being rotatably connected to the crushing assembly (4), a belt (8) being provided on the outside of the feeding assembly (5), and the feeding assembly (5) being connected to the transmission member (7) via the belt (8); The crushing assembly (4) comprises a conical block (41), the conical block (41) being rotatably connected to a base (1), the inner cavity of the conical block (41) being fixedly connected to a support column (43), the top of the support column (43) being fixedly connected to a rotating plate (44), the outer side of the rotating plate (44) being provided with a through hole (412), the top of the conical block (41) being fixedly connected to a round rod (49), and one end of the round rod (49) away from the conical block (41) being fixedly connected to a gear (410); The feeding assembly (5) comprises a cylinder (51), wherein the cylinder (51) is fixedly connected to the middle part of the shell (9), a lower hopper (52) is fixedly connected to the top of the cylinder (51), a rotating shaft (53) is arranged inside the cylinder (51), a roller (54) is fixedly connected to the outer side of the top of the rotating shaft (53), the roller (54) is connected to the transmission member (7) through a belt (8), a spiral plate (56) is fixedly connected to the outer side of the rotating shaft (53), a crushing rod (510) is fixedly connected to the outer side of the spiral plate (56), the outer side of the spiral plate (56) is rotatably connected to the inner wall of the cylinder (51), a positioning plate (57) is fixedly connected to the bottom of the rotating shaft (53), and a square hole (58) is provided on the outer side of the positioning plate (57).

2. The grinding equipment for producing plastic masterbatch according to claim 1, characterized in that: A protective cover (6) is fixedly connected to the middle of the top of the base (1), and the protective cover (6) is arranged in a ring around the crushing assembly (4) as the center. The bracket (2) is configured as a gantry, and there are two transmission members (7), and the two transmission members (7) are symmetrically arranged around the crushing assembly (4) as the center.

3. A grinding device for producing plastic masterbatch according to claim 2, characterized in that: A connecting cylinder (55) is fixedly connected to the bottom of the cylinder (51), and the connecting cylinder (55) is rotatably connected to the conical block (41). The rotating plate (44) is located below the positioning plate (57), and the outer side of the rotating plate (44) is rotatably connected to the inner wall of the connecting cylinder (55). The square holes (58) and the through holes (412) are alternately arranged.

4. The grinding equipment for producing plastic masterbatch according to claim 3, characterized in that: A diverter plate (59) is fixedly connected to the inner wall of the connecting cylinder (55), and there are a plurality of diverter plates (59). The plurality of diverter plates (59) are evenly distributed around the rotating shaft (53), and the diverter plates (59) are located below the rotating plate (44).

5. The grinding equipment for producing plastic masterbatch according to claim 4, characterized in that: A grinding ball (47) is fixedly connected to the outer side of the conical block (41); there are a plurality of grinding balls (47); the plurality of grinding balls (47) are arranged in a generatrix direction of the conical block (41); and the sizes of the grinding balls (47) decrease from top to bottom; and a scraper (48) is fixedly connected to the outer side of the conical block (41).

6. The grinding equipment for producing plastic masterbatch according to claim 5, characterized in that: A discharge hole (42) is provided on the outer side of the conical block (41), the discharge hole (42) passes through the conical block (41), the discharge hole (42), the scraper (48) and the grinding balls (47) are alternately arranged on the outer side of the conical block (41), a bent plate (411) is fixedly connected to the bottom of the support column (43), a screening component (45) is fixedly connected to the outer side of the support column (43), the screening component (45) is located in the inner cavity of the conical block (41), and a limiting component (46) is fixedly connected to the inner wall of the support column (43) close to the discharge hole (42).

7. The grinding equipment for producing plastic masterbatch according to claim 6, characterized in that: The screening assembly (45) comprises a fixed plate (451), the fixed plate (451) being fixedly connected to a support column (43), the middle portion of the fixed plate (451) being arranged to be convex upwards, the edge of the fixed plate (451) being arranged to be concave downwards, the top of the fixed plate (451) being fixedly connected to a guide plate (452), the top of the fixed plate (451) being provided with a filtering hole (453), the filtering hole (453) being arranged in the middle of adjacent guide plates (452).

8. The grinding equipment for producing plastic masterbatch according to claim 7, characterized in that: The guide plate (452) is made of rubber, the guide plate (452) is configured as a V-shaped block, and an opening of the guide plate (452) is located on a side away from the support column (43). There are a plurality of guide plates (452), and the plurality of guide plates (452) are evenly distributed around the support column (43).

9. The grinding equipment for producing plastic masterbatch according to claim 6, characterized in that: The limiting assembly (46) comprises an extension block (461), the extension block (461) being fixedly connected to the inner wall of the conical block (41), a rotating rod (463) being fixedly connected to the bottom of the extension block (461), the rotating rod (463) being located at the feeding position of the discharge hole (42), a spring plate (464) being fixedly connected to the outer side of the rotating rod (463), an end of the spring plate (464) away from the rotating rod (463) being fixedly connected to the extension block (461), and a baffle plate (462) being fixedly connected to the outer side of the extension block (461).

10. The grinding equipment for producing plastic masterbatch according to claim 6, characterized in that: The base (1) comprises a support block (11), a material discharge hole (12) is provided inside the support block (11), a conical hole (13) is provided in the middle of the base (1), a convex strip (14) is fixedly connected to the inner wall of the conical hole (13), and the convex strip (14) and the grinding balls (47) are arranged alternately.

Images