A high polymer color plastic packaging color masterbatch precise uniform mixing device

Abstract

The utility model discloses a kind of colour masterbatch precision uniform mixing devices for high-molecular color plastic packaging, including mixing barrel and feeding opening;The top of mixing barrel is rotatably connected with barrel cover, the side of barrel cover is connected with concave frame, the surface of mixing barrel is connected with positioning plate, the inboard of positioning plate is hingedly connected with cylinder, and the output end of cylinder is connected in the inboard of concave frame;The utility model is through the three-dimensional stirring of stirring disc, stirring plate A, stirring plate B, cooperate the dispersion effect of rolling ball on the surface of stirring disc, effectively break the stirring dead angle of traditional mixing device, ensure that colour masterbatch raw materials are mixed in mixing barrel omnibearing, nondiscriminatory, improve product pass rate;By the setting of scraper, raw materials adsorbed in the inner wall of mixing barrel can be fully utilized, waste caused by raw material residue is avoided, and utilization is improved;Through the reasonable layout of feeding opening, the central setting of discharge port, combined with closed mixing structure, the overall process of feeding, mixing and discharging is simplified, and time is reduced.

Description

Technical Field

[0001] This utility model relates to the field of mixing technology for color masterbatch in plastic packaging, specifically a device for precise and uniform mixing of color masterbatch for polymer colored plastic packaging. Background Technology

[0002] The full name of color masterbatch is color masterbatch, also known as color seed. It is a new type of special coloring agent for polymer materials, also known as pigment preparation. It is mainly used in plastics. Color masterbatch is composed of three basic elements: pigment or dye, carrier and additive. It is an aggregate made by uniformly attaching an extraordinary amount of pigment to the resin. It can be called pigment concentrate. Therefore, its coloring power is higher than that of the pigment itself. The carrier of special color masterbatch is the same as the type of plastic of the product, which has good compatibility. After heating and melting, the pigment particles can be well dispersed in the plastic of the product.

[0003] In existing technologies, most commercially available polymer colored plastic packaging masterbatch mixing devices employ a single stirring shaft with a single-layer stirring blade structure. The stirring blades are typically flat or spiral-shaped, with a certain gap between the blades and the inner wall of the mixing cylinder. The stirring motors are usually fixed-speed, enabling only unidirectional, single-dimensional stirring. However, relying solely on a single-layer stirring blade for unidirectional stirring results in a limited stirring dimension and an inability to create a three-dimensional stirring space. This leads to localized accumulation of masterbatch materials within the mixing cylinder, creating significant dead zones and poor material uniformity. Furthermore, the lack of auxiliary dispersion structures on the stirring blade surface results in high friction with the materials, further exacerbating the uneven mixing problem. Additionally, the gap between the stirring blades and the inner wall of the mixing cylinder allows some masterbatch materials to adhere to the cylinder wall, leading to material waste and affecting the purity and uniformity of subsequent mixing.

[0004] In view of this, we have launched a precision and uniform mixing device for masterbatch of polymer colored plastic packaging. Utility Model Content

[0005] The purpose of this invention is to provide a device for precise and uniform mixing of masterbatch for polymer colored plastic packaging, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a precise and uniform mixing device for masterbatch of polymer colored plastic packaging, comprising: a mixing cylinder and a feeding port; A cylinder cover is rotatably connected to the top of the mixing cylinder, a concave frame is connected to the side of the cylinder cover, a positioning plate is connected to the surface of the mixing cylinder, a cylinder is hinged to the inner side of the positioning plate, and the output end of the cylinder is connected to the inner side of the concave frame. The feeding port is located on one side of the cylinder cover, and the stirring motor is located in the center of the top of the cylinder cover; The mixing cylinder is equipped with a stirring mechanism. Through the coordinated use of the rotating rod, stirring disc, stirring plate A and stirring plate B of the stirring mechanism, the stirring disc, stirring plate A and stirring plate B can mix the plastic packaging masterbatch inside the mixing cylinder.

[0007] Preferably, the stirring mechanism includes a sleeve A connected to the side of a stirring plate A, a rotating rod connected to the output end of a stirring motor, and the bottom of the rotating rod extending through the cylinder cover into the interior of the mixing cylinder. Stirring discs are connected at equal intervals to the surface of the rotating rod, and the surface of the stirring discs is provided with rolling balls. A sleeve B is connected to the bottom of the rotating rod, and a stirring plate B is connected to the surface of the sleeve B. Scrapers are provided on the side of the stirring plate A and the top of the stirring plate B, and the scrapers are in contact with the inner wall of the mixing cylinder.

[0008] Preferably, a bolt A is connected to the surface of the sleeve A, one end of which passes through the sleeve A and extends into the interior of the rotating rod. A bolt B is connected to the bottom of the sleeve B, and one end of which passes through the sleeve B and extends into the interior of the rotating rod.

[0009] Preferably, a barometer is connected to one side of the top of the cylinder cover, and a main pressure relief valve is connected to one side of the top of the mixing cylinder. The barometer can monitor the changes in air pressure inside the cylinder in real time and display them intuitively. The main pressure relief valve can quickly release pressure when the air pressure is too high, ensuring the safe operation of the device.

[0010] Preferably, a clamp is connected between the mixing cylinder and the cylinder cover. The clamp adopts a quick clamp structure, which can enhance the sealing between the cylinder cover and the mixing cylinder after clamping, and prevent raw material leakage or external impurities from entering during the mixing process.

[0011] Preferably, the bottom side of the mixing cylinder is connected to a support leg, and a discharge port is provided at the center of the bottom of the mixing cylinder. The support leg provides stable support for the device, and the discharge port is located at the center of the bottom to facilitate the rapid and complete discharge of the mixed masterbatch.

[0012] Preferably, a secondary pressure relief valve pipe is connected to one side of the bottom of the mixing cylinder. The secondary pressure relief valve pipe and the main pressure relief valve pipe form a dual pressure relief guarantee to avoid safety hazards caused by the failure of a single pressure relief component.

[0013] Preferably, multiple sets of support legs are connected by reinforcing rods, which are connected laterally to effectively improve the overall structural strength and stability of the support legs and prevent the device from tipping over or shifting due to vibration during operation.

[0014] Compared with the prior art, the beneficial effects of this utility model are: (1) Through the three-dimensional mixing of the mixing plate, mixing plate A and mixing plate B, combined with the rolling beads on the surface of the mixing plate to enhance the dispersion effect, the mixing dead corner of the traditional mixing device is effectively broken, ensuring that the color masterbatch raw materials are mixed in all directions and without difference in the mixing cylinder. At the same time, the close contact between the scraper and the inner wall of the mixing cylinder can remove the raw materials adsorbed on the wall surface in time, avoiding uneven mixing caused by raw material accumulation, significantly improving the uniformity of mixing. The precise driving mode of the mixing mechanism and the stable operating state can realize the precise control of the mixing process, ensure the consistency of the mixing effect each time, provide strong support for the color stability of subsequent high polymer colored plastic packaging products, and improve the product qualification rate. (2) By setting up scrapers, the raw materials adsorbed on the inner wall of the mixing cylinder can be fully utilized, avoiding waste caused by raw material residue and improving the utilization rate of raw materials; (3) By rationally arranging the feeding port and centrally setting the discharge port, combined with the closed mixing structure, the overall process of feeding, mixing and discharging is simplified, and the auxiliary time in the operation process is reduced. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the rotating rod and stirring mechanism of this utility model; Figure 3 This is a three-dimensional structural diagram of the present invention. Figure 4 This is a front view of the structure of this utility model; Figure 5 This is a side view of the structure of this utility model; Figure 6 This utility model Figure 3 A structural diagram from a first-person perspective.

[0016] In the diagram: 1. Mixing cylinder; 2. Cylinder; 3. Positioning plate; 4. Concave frame; 5. Agitator motor; 6. Cylinder cover; 7. Clamp; 8. Barometer; 9. Feed port; 10. Main pressure relief valve pipe; 11. Support leg; 12. Reinforcing rod; 13. Discharge port; 14. Secondary pressure relief valve pipe; 15. Rotating rod; 16. Agitator plate; 17. Rolling ball; 18. Agitator plate A; 19. Scraper; 20. Agitator plate B; 21. Sleeve A; 22. Sleeve B; 23. Bolt B; 24. Bolt A. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved with", "connected", etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0019] Please see Figure 1-6 This utility model provides a technical solution: a precise and uniform mixing device for masterbatch of polymer colored plastic packaging, comprising: a mixing cylinder 1, a cylinder cover 6 rotatably connected to the top of the mixing cylinder 1, a concave frame 4 connected to the side of the cylinder cover 6, a positioning plate 3 connected to the surface of the mixing cylinder 1, a cylinder 2 hinged to the inner side of the positioning plate 3, and the output end of the cylinder 2 connected to the inner side of the concave frame 4. Feeding port 9 is located on one side of the surface of cylinder cover 6, and stirring motor 5 is located at the center of the top of cylinder cover 6; The mixing cylinder 1 is equipped with a stirring mechanism. Through the coordinated use of the rotating rod 15, stirring disc 16, stirring plate A18 and stirring plate B20 of the stirring mechanism, the stirring disc 16, stirring plate A18 and stirring plate B20 can mix the plastic packaging masterbatch inside the mixing cylinder 1.

[0020] The stirring mechanism specifically includes: a sleeve A21 welded to the side of the stirring plate A18, the sleeve A21 being a hollow cylindrical structure, its inner diameter matching the outer diameter of the rotating rod 15, and able to be tightly fitted onto the rotating rod 15; the upper end of the rotating rod 15 is connected to the output end of the stirring motor 5 via a coupling, and the bottom of the rotating rod 15 extends vertically through a pre-reserved through hole on the cylinder cover 6 into the interior of the mixing cylinder 1, with a sealing gasket at the through hole to ensure the sealing of the device; the stirring disc 16 is disc-shaped, with several through holes evenly distributed on its surface to reduce stirring resistance and improve mixing effect, the stirring disc 16 being welded at equal intervals along the length direction of the rotating rod 15, and the upper and lower surfaces of the stirring disc 16... Each surface is embedded with several rolling balls 17, which can roll freely, reducing frictional resistance with the raw materials during mixing and enhancing the dispersion effect of the raw materials. A sleeve B22 is welded to the bottom of the rotating rod 15. The sleeve B22 has the same structure as the sleeve A21. The stirring plate B20 is rectangular, with one end welded to the outer surface of the sleeve B22. The stirring plates A18 and B20 are staggered. The sides of the stirring plate A18 and the top of the stirring plate B20 are fixed with scrapers 19 by bolts. The scrapers 19 are made of wear-resistant rubber, and the outer edge of the scrapers 19 is in close contact with the inner wall of the mixing cylinder 1. This allows the masterbatch material adsorbed on the cylinder wall to be scraped off during mixing, preventing material residue.

[0021] The outer surface of the sleeve A21 is radially threaded with a bolt A24 threaded into the threaded hole. One end of the bolt A24 passes through the sleeve A21 and extends into the corresponding positioning hole on the surface of the rotating rod 15. The bolt A24 can firmly fix the sleeve A21 and the rotating rod 15, and at the same time facilitate the disassembly and adjustment of the installation height of the stirring plate A18. The bottom of the sleeve B22 is axially threaded with a bolt B23 threaded into the threaded hole. One end of the bolt B23 passes through the sleeve B22 and extends into the corresponding positioning hole at the bottom of the rotating rod 15, so that the sleeve B22 and the rotating rod 15 can be detachably fixed, which facilitates the subsequent maintenance and replacement of the stirring plate B20.

[0022] A barometer 8 is fixedly connected to the top side of the cylinder cover 6 via a bracket. The detection end of the barometer 8 extends through the cylinder cover 6 into the mixing cylinder 1, which can monitor the air pressure changes inside the mixing cylinder 1 in real time, so that the operator can keep track of the pressure inside the cylinder. A main pressure relief valve pipe 10 is welded to the top side of the mixing cylinder 1. A manual control valve is installed on the main pressure relief valve pipe 10. When the air pressure inside the cylinder is too high, the valve can be opened to relieve the pressure and ensure the safe operation of the device.

[0023] A clamp 7 is connected between the mixing cylinder 1 and the cylinder cover 6. The clamp 7 is a quick clamp, one end of which is fixed to the top edge of the mixing cylinder 1, and the other end can be fastened to the corresponding position of the cylinder cover 6. By clamping the clamp 7, the sealing performance and connection stability between the mixing cylinder 1 and the cylinder cover 6 can be further improved, and the cylinder cover can be prevented from loosening due to vibration during the mixing process.

[0024] The mixing cylinder 1 has three sets of support legs 11 evenly welded around its bottom circumference. The support legs 11 are made of stainless steel and have anti-slip pads installed on their bottoms to enhance the stability of the device and prevent slippage during the mixing process. A discharge port 13 is provided at the center of the bottom of the mixing cylinder 1. An electric discharge valve is installed at the discharge port 13 to achieve automated discharge. The opening and closing of the discharge valve can be precisely controlled by the control system.

[0025] A secondary pressure relief valve pipe 14 is welded to one side of the bottom of the mixing cylinder 1. The secondary pressure relief valve pipe 14 has the same structure as the main pressure relief valve pipe 10, and the two form a double pressure relief guarantee. When the main pressure relief valve pipe 10 fails, the pressure can be relieved through the secondary pressure relief valve pipe 14, which further improves the safety of the device operation.

[0026] A reinforcing rod 12 is welded horizontally between multiple sets of support legs 11. The reinforcing rod 12 is made of solid round steel and is distributed in a triangular pattern. It can effectively enhance the connection strength between the three sets of support legs 11, improve the overall structural stability of the device, and prevent the support legs from deforming after long-term use.

[0027] This high-polymer colored plastic packaging masterbatch precision and uniform mixing device achieves automated, precise, and uniform mixing of masterbatch raw materials through the coordinated operation of mechanical structures. The overall workflow can be divided into six core stages: device preparation, feeding, mixing, pressure monitoring and adjustment, discharge, and device reset. The specific working mechanisms of each stage are as follows: (I) Equipment preparation stage: Before work, the initial debugging and status confirmation of the equipment need to be completed. First, the opening and closing state of the cylinder cover 6 is adjusted by the extension and retraction of the cylinder 2. The cylinder body of the cylinder 2 is hinged to the inner side of the positioning plate 3 on the surface of the mixing cylinder 1, and the output end is connected to the concave frame 4 on the side of the cylinder cover 6. Starting the cylinder 2 can drive the cylinder cover 6 to rotate around the rotation connection point at the top of the mixing cylinder 1 to achieve precise opening and closing of the cylinder cover. When the cylinder cover 6 is closed, the clamp 7 between the mixing cylinder 1 and the cylinder cover 6 is used to lock and fix it to ensure the sealing of the equipment during the mixing process and prevent the leakage of color masterbatch or the entry of external impurities. At the same time, check the support legs 11 and the reinforcing rods 12 between multiple sets of support legs to ensure that the equipment is placed stably and improve the overall structural stability, laying the foundation for subsequent mixing work. (II) Feeding stage: After the device is ready, add the high-molecular colored plastic packaging masterbatch raw material to be mixed into the mixing cylinder 1 through the feeding port 9 set on one side of the cylinder cover 6. During the feeding process, the amount of raw material can be precisely controlled according to the mixing requirements. The reasonable layout of the feeding port 9 not only makes it convenient for operators to add raw materials, but also avoids the raw materials from spilling during the feeding process, thus improving the convenience and accuracy of the feeding process. After the feeding is completed, keep the cylinder cover 6 closed and locked to ensure the airtightness of the mixing environment. (III) Mixing and Stirring Stage: Mixing and stirring is the core working link of the device. The internal stirring mechanism is driven by the stirring motor 5 located in the center of the top of the cylinder cover 6 to achieve uniform mixing of the color masterbatch raw materials. The specific working mechanism is as follows: After the stirring motor 5 is started, its output end drives the rotating rod 15 to rotate. The bottom of the rotating rod 15 extends through the cylinder cover 6 into the mixing cylinder 1, providing power support for the stirring mechanism. The stirring discs 16 connected at equal intervals on the surface of the rotating rod 15 rotate synchronously with the rotating rod. The rolling beads 17 set on the surface of the stirring disc 16 generate rolling friction with the color masterbatch raw materials during the rotation process, which can enhance the stirring and dispersing effect of the raw materials and reduce the friction between the stirring disc and the raw materials, thereby reducing equipment wear. Meanwhile, the stirring plate A18 is fitted onto the rotating rod 15 via the side sleeve A21, and the stirring plate B20 is fitted onto the bottom of the rotating rod 15 via the sleeve B22. Bolt A24 on the surface of sleeve A21 extends through sleeve A21 into the interior of the rotating rod 15, and bolt B23 on the bottom of sleeve B22 extends through sleeve B22 into the interior of the rotating rod 15. Through the locking action of bolts A24 and B23, a secure connection is achieved between the stirring plate A18, the stirring plate B20, and the rotating rod 15, ensuring the stirring plate and rotating rod remain firmly connected during the stirring process. Simultaneous operation: During rotation, stirring plates A18 and B20 stir the color masterbatch material inside the mixing cylinder 1 from different heights, forming a three-dimensional stirring effect, effectively avoiding dead corners in the mixing of the material. In addition, the scraper 19 set on the side of stirring plate A18 and the top of stirring plate B20 is in close contact with the inner wall of mixing cylinder 1. During the stirring process, the scraper 19 rotates synchronously with the stirring plates, which can scrape off the color masterbatch material adsorbed on the inner wall of the mixing cylinder, ensuring that all the material participates in the mixing, improving the uniformity of the mixing while reducing material waste. (iv) Pressure monitoring and regulation stage: During the mixing process, the pressure inside the mixing cylinder 1 may change due to factors such as friction of raw material mixing and residual gas. If the pressure is too high, it may affect the sealing of the device or even cause safety hazards. Therefore, the device is equipped with a complete pressure monitoring and regulation mechanism: the pressure gauge 8 connected to the top side of the cylinder cover 6 monitors the pressure value inside the mixing cylinder 1 in real time. The operator can intuitively grasp the pressure change inside the cylinder through the pressure gauge. When the pressure inside the cylinder exceeds the preset threshold, the main pressure relief valve pipe 10 on the top side of the mixing cylinder 1 can be used for the main pressure relief operation. If fine adjustment or auxiliary pressure relief is required, the auxiliary pressure relief valve pipe 14 on the bottom side of the mixing cylinder 1 can be opened to achieve precise adjustment of the pressure inside the cylinder and ensure that the mixing process is carried out in a safe and stable pressure environment. (V) Discharge stage: After the color masterbatch raw materials are mixed to the preset requirements, stop the stirring motor 5. After the stirring mechanism is completely stopped, open the discharge port 13 at the center of the bottom of the mixing cylinder 1. The uniformly mixed color masterbatch raw materials are discharged through the discharge port 13 to complete the mixing operation. The discharge port 13 is set at the center of the bottom of the mixing cylinder to facilitate the rapid and thorough discharge of raw materials and reduce the residue of raw materials in the mixing cylinder. (vi) Device reset stage: After the discharge is completed, cylinder 2 can be restarted to drive cylinder cover 6 to open, and the inside of mixing cylinder 1 and stirring mechanism can be cleaned and maintained to avoid residual color masterbatch raw materials from affecting the subsequent mixing effect. After cleaning, the cylinder cover is closed and the clamp is locked to restore the device to its initial state and wait for the next mixing operation.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for precise and uniform mixing of masterbatch for polymer colored plastic packaging, characterized in that, include: Mixing cylinder (1), the top of the mixing cylinder (1) is rotatably connected to a cylinder cover (6), the side of the cylinder cover (6) is connected to a concave frame (4), the surface of the mixing cylinder (1) is connected to a positioning plate (3), the inner side of the positioning plate (3) is hinged to a cylinder (2), and the output end of the cylinder (2) is connected to the inner side of the concave frame (4). Feeding port (9) is located on one side of the surface of the cylinder cover (6), and a stirring motor (5) is located at the center of the top of the cylinder cover (6). The mixing cylinder (1) is equipped with a stirring mechanism. The stirring mechanism uses a rotating rod (15), a stirring disc (16), a stirring plate A (18), and a stirring plate B (20) to mix the plastic packaging masterbatch inside the mixing cylinder (1).

2. The device for precise and uniform mixing of masterbatch for polymer colored plastic packaging according to claim 1, characterized in that, The stirring mechanism includes a stirring plate A (18) with a sleeve A (21) connected to its side, a rotating rod (15) connected to the output end of a stirring motor (5), and the bottom of the rotating rod (15) extending through the cylinder cover (6) and into the interior of the mixing cylinder (1), a stirring disc (16) connected at equal intervals to the surface of the rotating rod (15), and a rolling ball (17) provided on the surface of the stirring disc (16), a sleeve B (22) connected to the bottom of the rotating rod (15), a stirring plate B (20) connected to the surface of the sleeve B (22), a scraper (19) provided on the side of the stirring plate A (18) and the top of the stirring plate B (20), and the scraper (19) in contact with the inner wall of the mixing cylinder (1).

3. The device for precise and uniform mixing of masterbatch for polymer colored plastic packaging according to claim 2, characterized in that, The surface of the sleeve A (21) is connected to a bolt A (24), one end of which passes through the sleeve A (21) and extends into the interior of the rotating rod (15). The bottom of the sleeve B (22) is connected to a bolt B (23), one end of which passes through the sleeve B (22) and extends into the interior of the rotating rod (15).

4. The precise and uniform mixing device for masterbatch of polymer colored plastic packaging according to claim 1, characterized in that, A pressure gauge (8) is connected to the top side of the cylinder cover (6), and a main pressure relief valve pipe (10) is connected to the top side of the mixing cylinder (1).

5. The precise and uniform mixing device for masterbatch of polymer colored plastic packaging according to claim 1, characterized in that, A clamp (7) is connected between the mixing cylinder (1) and the cylinder cover (6).

6. The precise and uniform mixing device for masterbatch of polymer colored plastic packaging according to claim 1, characterized in that, The bottom side of the mixing cylinder (1) is connected to a support leg (11), and a discharge port (13) is provided at the center of the bottom of the mixing cylinder (1).

7. The device for precise and uniform mixing of masterbatch for polymer colored plastic packaging according to claim 1, characterized in that, The bottom side of the mixing cylinder (1) is connected to a secondary pressure relief valve pipe (14).

8. The precise and uniform mixing device for masterbatch of polymer colored plastic packaging according to claim 6, characterized in that, A reinforcing rod (12) connects multiple sets of support legs (11).

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