A color matching device for plastic modification

Abstract

This utility model relates to the field of color mixing technology for plastic modification, and more particularly to a color mixing device for plastic modification, comprising a base frame, a cylinder, a first motor, a stirring rack, a solenoid valve, a feeding cylinder, a storage cylinder, a top cover, a third motor, and a sealing block. The cylinder is fixedly mounted on the upper side of the base frame by bolts. The feeding port at the bottom of the cylinder is designed with an inverted conical structure, and a solenoid valve is installed on the outer wall of the inverted conical feeding port. The first motor is installed in the middle of the top of the cylinder, and the output shaft of the first motor passes through the top wall of the cylinder and extends into the inner cavity of the cylinder. The stirring rack is fixedly connected to one end of the first motor output shaft located in the inner cavity. The third motor drives the sealing block to rotate, and the feeding port gap can be adjusted to precisely control the feeding speed of different colored particles and modifiers. The storage cylinder stores different raw materials separately, and the inverted conical feeding port avoids material accumulation, enabling feeding according to a predetermined ratio, ensuring accurate raw material ratio, and meeting the precise requirements of color mixing.

Description

Technical Field

[0001] This utility model relates to the field of color mixing technology for plastic modification, and in particular to a color mixing device for plastic modification. Background Technology

[0002] In the production of modified plastic products, it is often necessary to blend masterbatches or color powders of different colors with the base resin to achieve the desired color effect. During this process, the uniformity and accuracy of color mixing directly determine the color quality and consistency of the final product.

[0003] Currently, the most common color mixing method in the industry involves manually weighing the materials before feeding them into large mixers or mixing chambers for centralized mixing. This traditional method has several drawbacks. First, manual control of the proportions is inaccurate and prone to introducing errors, leading to significant batch-to-batch color differences. Second, dust is easily generated during the material feeding process, and particles of different colors may initially agglomerate due to improper feeding order and method, increasing the difficulty of subsequent mixing. Third, any lumps or metallic impurities mixed in the materials, if not effectively removed, will directly affect the mixing quality and may even damage the equipment.

[0004] In addition, existing feeding mechanisms mostly use simple gate valves or butterfly valves for control, resulting in poor feeding accuracy and controllability. This makes it difficult to accurately add trace amounts of raw materials. Furthermore, when processing hygroscopic or poorly flowing plastic granules, the feeding port is prone to blockage or bridging, leading to production interruptions and affecting the efficiency of continuous operation.

[0005] Therefore, there is an urgent need to design an integrated color mixing device that can achieve automatic and precise proportioning and feeding, efficient and uniform mixing, and also has the functions of preliminary screening of impurities and anti-clogging, so as to improve the automation level and product quality of plastic modification production. Utility Model Content

[0006] In order to overcome the shortcomings mentioned in the background art, this utility model provides a color mixing device for plastic modification.

[0007] The technical solution is as follows: A color mixing device for plastic modification includes a base frame, a cylinder, a first motor, a stirring rack, a solenoid valve, a feeding cylinder, a storage cylinder, a top cover, a third motor, and a sealing block. The cylinder is fixedly installed on the upper side of the base frame by bolts. The feeding port at the bottom of the cylinder is designed with an inverted conical structure. A solenoid valve is installed on the outer wall of the feeding port of the cylinder. The first motor is installed in the middle of the top of the cylinder. The output shaft of the first motor passes through the top wall of the cylinder and extends into the inner cavity of the cylinder. The stirring rack is fixedly connected to one end of the first motor output shaft in the inner cavity. Four feeding cylinders are evenly connected and connected to the top of the cylinder through a connecting pipe. The top of each feeding cylinder is connected and connected to a storage cylinder. The top of the storage cylinder is installed with a top cover by a sealed rotating connection. The feeding port of the feeding cylinder is also designed with an inverted conical structure. A third motor is installed at the feeding port of the feeding cylinder. A sealing block is connected to the output shaft of the third motor. In the initial state, the sealing block is in a horizontal position to close the feeding port.

[0008] Optionally, a 3-5mm gap is reserved between the impeller of the stirring rack and the inner wall of the cylinder.

[0009] Optionally, transparent windows are embedded in the outer wall of the storage cylinder.

[0010] Optionally, it also includes a filter screen, which is removably installed on the lower side of the inside of the storage cylinder.

[0011] Optionally, the filter screen is made of 304 stainless steel.

[0012] Optionally, it also includes a second motor, a large gear, a small gear, and a rotating frame. The second motor is mounted between the inner sides of the four storage cylinders via a mounting base. The output shaft of the second motor is connected to the large gear. The upper side of the feeding cylinder is rotatably connected to the rotating frame via a bearing. The outer side of the upper end of the rotating frame is fixedly connected to the small gear, which is exposed outside the feeding cylinder and meshes with the large gear.

[0013] The beneficial effects of this utility model are: 1. The third motor drives the closed block to rotate, and the gap of the feeding port can be adjusted to accurately control the feeding speed of each color particle and modifier; the storage cylinder stores different raw materials separately, and the inverted conical feeding port avoids material accumulation, and can feed according to the predetermined ratio, ensuring the accuracy of the raw material ratio and meeting the precise requirements of color matching.

[0014] 2. The first motor drives the stirring frame to rotate. The blades leave a 3-5mm gap with the inner wall of the cylinder to achieve stirring without dead corners. After all the materials have entered the cylinder, the stirring frame continues to operate to ensure that the multi-colored particles and modifiers are fully mixed. After mixing, the mixture is smoothly discharged through the solenoid valve to ensure the uniformity of the mixture.

[0015] 3. The second motor drives the large gear to rotate, which meshes with the small gear to drive the rotating frame inside the feeding cylinder to rotate, continuously agitating the particles inside the cylinder, effectively preventing blockage of the feeding port, ensuring the continuity and stability of feeding, and working with other functions to ensure the smooth operation of the overall mixing process. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a cross-sectional view of the cylindrical component of this utility model.

[0018] Figure 3 This is a three-dimensional structural diagram of the feeding cylinder, storage cylinder, and top cover of this utility model.

[0019] Figure 4 This is a cross-sectional view of the feeding cylinder and storage cylinder components of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1_base frame, 2_cylinder body, 3_first motor, 4_stirring rack, 5_solenoid valve, 6_feeding cylinder, 7_storage cylinder, 8_top cover, 9_second motor, 10_large gear, 11_small gear, 12_rotating frame, 13_filter screen, 14_third motor, 15_sealing block. Detailed Implementation

[0021] Example: A color mixing device for plastic modification, such as Figures 1-4As shown, the system includes a base frame 1, a cylinder 2, a first motor 3, a stirring rack 4, a solenoid valve 5, a feeding cylinder 6, a storage cylinder 7, a top cover 8, a filter screen 13, a third motor 14, and a sealing block 15. The cylinder 2 is bolted to the upper side of the base frame 1. The feeding port at the bottom of the cylinder 2 is designed with an inverted conical structure. The outer wall of the inverted conical feeding port at the bottom of the cylinder 2 is sealed with a solenoid valve 5 by a flange. The solenoid valve 5 is used to control the opening and closing of the material discharge from the inner cavity of the cylinder 2. The first motor 3 is installed in the middle of the top of the cylinder 2. The output shaft of the first motor 3... A stirring frame 4 is fixedly connected to one end of the first motor 3 located in the inner cavity, penetrating the top wall of the cylinder 2 and extending into the inner cavity. The blades of the stirring frame 4 are reserved with a gap of 3-5mm between them and the inner wall of the cylinder 2 to ensure no dead corners in the stirring. The top of the cylinder 2 is evenly connected to four feeding cylinders 6 via a connecting pipe. The top of each feeding cylinder 6 is connected to a storage cylinder 7 for storing plastic modified granules of different colors. The top of each storage cylinder 7 is fitted with a top cover 8 using a sealed rotating connection. The outer wall of each storage cylinder 7 is embedded with a top cover 8. Equipped with transparent windows, operators can directly and intuitively observe the remaining amount of material in each cylinder 2, the flow status of the material, and whether there are any signs of blockage, thus realizing visual monitoring of the production process. The discharge port of the discharge cylinder 6 is also designed with an inverted conical structure. A third motor 14 is installed at the discharge port of the discharge cylinder 6. A sealing block 15 is connected to the output shaft of the third motor 14. In the initial state, the sealing block 15 is in a horizontal position to close the discharge port. By starting the third motor 14 to drive the sealing block 15 to rotate, the gap between it and the discharge port can be adjusted, thereby achieving precise control of the discharge amount. A filter screen 13 is detachably installed on the lower side inside the storage cylinder 7. When plastic particles fall from the storage cylinder 7 into the discharge cylinder 6, the filter screen 13 can intercept lumps and metal impurities with a particle size greater than 2mm, ensuring that the particle size of the particles entering the mixing system is uniform and the impurities are controllable. After the operation is completed, the top cover 8 can be opened to remove the filter screen 13 for cleaning or replacement. The filter screen 13 is made of 304 stainless steel. Stainless steel is corrosion-resistant, has high strength, and is not prone to chemical reaction with plastic raw materials.

[0022] When mixing plastic granules for color, first open the four top covers 8 by rotating them. According to the predetermined mixing ratio, add the corresponding colored plastic masterbatch, base resin granules, and other raw materials to each storage cylinder 7. One or two storage cylinders 7 can be designated for adding granular modifiers. After feeding, close the top covers 8. The material in the storage cylinders 7 falls into the feeding cylinder 6 under gravity. Then, start the third motor 14, whose output shaft drives the sealing block 15 to rotate. By adjusting the opening between the sealing block 15 and the feeding port, the feeding speed of various granules can be precisely controlled. The material enters the inner cavity of the cylinder 2 through the feeding port. At the same time, the first motor 3 is started to drive the stirring rack 4 to rotate, so as to achieve efficient and uniform mixing of various color particles and modifiers. After all the material in the storage cylinder 7 has been fed, the stirring rack 4 continues to run for a period of time to ensure that the mixture reaches a fully uniform state. After the mixing is completed, the third motor 14 is controlled to run in reverse, so that the sealing block 15 rotates back to a horizontal state, re-closing the feeding port. Finally, the solenoid valve 5 is opened, and the mixed material is discharged through the inverted conical feeding port at the bottom of the cylinder 2 to enter the subsequent processing steps.

[0023] like Figures 3-4 As shown, it also includes a second motor 9, a large gear 10, a small gear 11, and a rotating frame 12. The second motor 9 is installed between the inner sides of the four storage cylinders 7 via mounting bases. The output shaft of the second motor 9 is connected to the large gear 10. The upper side of the inner side of the feeding cylinder 6 is rotatably connected to the rotating frame 12 via bearings. The small gear 11 is fixedly connected to the outer side of the upper end of the rotating frame 12. The small gear 11 is exposed outside the feeding cylinder 6 and meshes with the large gear 10. When color matching is performed, the second motor 9 is started synchronously, and the output shaft drives the large gear 10 to rotate, which in turn drives the small gear 11 and the rotating frame 12 to rotate, so as to realize continuous agitation of the plastic particles in the feeding cylinder 6, effectively prevent the feeding port from being blocked, and ensure the continuity and stability of feeding. After the operation is completed, the second motor 9 is turned off along with the system.

Claims

1. A color mixing device for plastic modification, characterized in that, The system includes a base frame (1), a cylinder (2), a first motor (3), a stirring rack (4), a solenoid valve (5), a feeding cylinder (6), a storage cylinder (7), a top cover (8), a third motor (14), and a sealing block (15). The cylinder (2) is fixedly installed on the upper side of the base frame (1) by bolts. The feeding port at the bottom of the cylinder (2) is designed as an inverted cone structure. A solenoid valve (5) is installed on the outer wall of the feeding port of the cylinder (2). The first motor (3) is installed in the middle of the top of the cylinder (2). The output shaft of the first motor (3) passes through the top wall of the cylinder (2) and extends into the inner cavity of the cylinder (2). The output shaft is fixedly connected to a stirring rack (4) at one end of the inner cavity. The top of the cylinder (2) is evenly connected to four feeding cylinders (6) through a connecting pipe. The top of each feeding cylinder (6) is connected to a storage cylinder (7). The top of the storage cylinder (7) is fitted with a top cover (8) using a sealed rotating connection. The feeding port of the feeding cylinder (6) is also designed as an inverted cone structure. A third motor (14) is installed at the feeding port of the feeding cylinder (6). A sealing block (15) is connected to the output shaft of the third motor (14). In the initial state, the sealing block (15) is in a horizontal position to close the feeding port.

2. The color mixing device for plastic modification according to claim 1, characterized in that, A 3-5mm gap is reserved between the blades of the stirring rack (4) and the inner wall of the cylinder (2).

3. A color blending device for plastic modification according to claim 2, characterized in that, Transparent windows are embedded in the outer wall of the storage cylinder (7).

4. The color mixing device for plastic modification according to claim 3, characterized in that, It also includes a filter screen (13), and the filter screen (13) is detachably installed on the lower side inside the storage cylinder (7).

5. The color mixing device for plastic modification according to claim 4, characterized in that, The filter screen (13) is made of 304 stainless steel.

6. A color blending device for plastic modification according to claim 5, characterized in that, It also includes a second motor (9), a large gear (10), a small gear (11) and a rotating frame (12). The second motor (9) is installed between the inner sides of the four storage cylinders (7) through a mounting base. The output shaft of the second motor (9) is connected to the large gear (10). The upper side of the inner side of the feeding cylinder (6) is rotatably connected to the rotating frame (12) through a bearing. The small gear (11) is fixedly connected to the outer side of the upper end of the rotating frame (12). The small gear (11) is exposed outside the feeding cylinder (6) and meshes with the large gear (10).

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