Flame-retardant master batch mixing device with good mixing effect

Abstract

The utility model discloses a flame-retardant master batch mixing device with a good mixing effect. The flame-retardant master batch mixing device comprises a rack, a mixing barrel, a feeding pipeline, a spiral stirring mechanism, a counterweight baffle mechanism and a vibration conveying mechanism, the bottom of the mixing barrel is connected with the rack through the weighing sensor, the spiral stirring mechanism is arranged in the mixing barrel, the feeding pipeline is clamped on the side wall of the mixing barrel, a discharging cover is arranged at the top of the feeding pipeline, an opening of the discharging cover is located at the bottom of the flip door, a discharging port is formed in the bottom of the mixing barrel, and the counterweight baffle mechanism is used for blocking or opening the discharging port. The vibration conveying mechanism is arranged at the bottom of the discharging port. According to the flame-retardant material mixing device, flame-retardant materials can be uniformly distributed and fed into the material mixing barrel through the material discharging cover by the feeding pipeline, the situation that the mixing efficiency is influenced by local accumulation is avoided, the flame-retardant materials in the material mixing barrel can be uniformly stirred by the spiral stirring mechanism, and after mixing is completed, the flame-retardant materials can be intermittently discharged by the counterweight baffle mechanism according to the lever principle, so that the flame-retardant material mixing efficiency is improved. And the problem of local material accumulation caused by instantaneous mass discharge is avoided.

Description

Technical Field

[0001] This utility model relates to the field of mixing devices, and in particular to a flame-retardant masterbatch mixing device with good mixing effect. Background Technology

[0002] Flame retardant masterbatch is a concentrated material formed by processing flame retardants and carrier resins through a special process. It is widely used in the flame retardant modification of polymer materials such as plastics or rubber to improve their flame retardant performance. In the processing of flame retardant masterbatch, it is usually necessary to add various granular flame retardant materials into a mixing drum for mixing and stirring, so as to evenly disperse the flame retardant into the carrier resin and prevent the flame retardant from agglomerating locally, which would cause unstable flame retardant performance.

[0003] However, existing mixing devices often transport flame retardant materials to the mixing device via pipelines when mixing granular flame retardant materials. This can easily lead to excessive accumulation or insufficient accumulation of flame retardant materials in certain areas, thus affecting the uniformity and efficiency of mixing. At the same time, during the process of transporting flame retardant materials from the mixing device to the downstream process, secondary aggregation can easily occur, resulting in uneven delivery of flame retardant materials and affecting the processing quality of subsequent processes.

[0004] Therefore, existing technologies have shortcomings and need to be improved. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a flame-retardant masterbatch mixing device that is easy to use, improves mixing efficiency, and has a good mixing effect.

[0006] To achieve this objective, the present invention adopts the following technical solution: a flame retardant masterbatch mixing device with good mixing effect, comprising a frame, a mixing cylinder, a feeding pipe, a spiral stirring mechanism, a counterweight baffle mechanism, and a vibrating conveying mechanism;

[0007] The bottom of the mixing cylinder is connected to the frame via a weighing sensor. The mixing cylinder has a accommodating chamber for holding the granular flame-retardant material to be mixed. The top of the mixing cylinder is provided with a rotatable flip-top door for closing or opening the accommodating chamber.

[0008] The spiral stirring mechanism is located inside the mixing cylinder, and the spiral stirring mechanism is used to stir and mix the flame-retardant materials inside the mixing cylinder;

[0009] The feeding pipe is clamped to the side wall of the mixing cylinder by a clamp. The top of the feeding pipe has a discharge hood, the opening of which is located at the bottom of the flip-top door. The feeding pipe is used to transport granular flame-retardant materials into the accommodating chamber by airflow.

[0010] The mixing cylinder has a discharge port at the bottom, and the counterweight baffle mechanism is located at the bottom of the discharge port. The counterweight baffle mechanism is used to block or open the discharge port.

[0011] The vibrating conveying mechanism includes a material bed, a vibrating motor, and an elastic connecting arm. The material bed is inclined below the mixing cylinder to receive flame-retardant materials falling from the mixing cylinder. The material bed is connected to the frame through the elastic connecting arm. The vibrating motor is located on the side wall of the material bed and is used to drive the material bed to vibrate.

[0012] Using the above technical solution, in the flame retardant masterbatch mixing device with good mixing effect, the counterweight baffle mechanism includes a sealing baffle, a lifting frame, a swing arm, and a counterweight block;

[0013] The blocking baffle is located at the bottom of the discharge port and is connected to the lifting frame. The middle part of the swing arm is rotatably connected to the side wall of the mixing cylinder through a pin. One end of the swing arm is connected to the lifting frame, and the other end of the swing arm is connected to the counterweight. The counterweight is used to apply an upward force to the blocking baffle so that the blocking baffle is tightly attached to the discharge port.

[0014] Using the above technical solution, in the flame retardant masterbatch mixing device with good mixing effect, the end of the material bed is provided with a material drop channel, the height of the material bed gradually decreases along the direction close to the material drop channel, and the material drop channel is used to transport the flame retardant material that has been dispersed by vibration.

[0015] Using the above technical solution, in the flame retardant masterbatch mixing device with good mixing effect, the counterweight baffle mechanism further includes a counterweight connecting arm, which is used to connect the counterweight blocks located on both sides of the mixing cylinder.

[0016] Using the above technical solution, in the flame retardant masterbatch mixing device with good mixing effect, the spiral stirring mechanism includes a geared motor, a rotating shaft, a first spiral blade and a second spiral blade;

[0017] The geared motor is located on the side of the frame, and the output end of the geared motor is connected to the rotating shaft to drive the rotating shaft to rotate. The rotating shaft is located inside the mixing cylinder. The first spiral blade and the second spiral blade are respectively arranged around the length of the rotating shaft, and the diameter of the first spiral blade is larger than the diameter of the second spiral blade.

[0018] In the above-mentioned technical solution, the flame retardant masterbatch mixing device with good mixing effect has several through holes on the surface of the first spiral blade.

[0019] The flame-retardant masterbatch mixing device with good mixing effect, which adopts the above technical solution, also includes an electric push rod. The electric push rod is located on the side wall of the mixing cylinder, and the movable end of the electric push rod is connected to the flip door to drive the flip door to flip up and down.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The feeding pipe of this utility model can evenly distribute flame-retardant materials into the mixing cylinder through the discharge hood, avoiding local accumulation that affects the mixing efficiency. The spiral stirring mechanism can evenly stir the flame-retardant materials in the mixing cylinder. After mixing is completed, the counterweight baffle mechanism can realize the intermittent discharge of flame-retardant materials through the lever principle, avoiding the problem of local material accumulation caused by instantaneous large-scale discharge. At the same time, the vibrating conveying mechanism can keep the flame-retardant materials in a loose state through vibration, further improving the uniformity of conveying the flame-retardant materials. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the overall structure of this utility model from another perspective;

[0026] Figure 3 This is a schematic diagram of the bottom structure of the mixing cylinder of this utility model;

[0027] Figure 4 This is a schematic diagram of the installation structure of the counterweight baffle mechanism of this utility model;

[0028] Figure 5 This is a schematic diagram of the installation structure of the counterweight baffle mechanism of this utility model from another perspective;

[0029] Figure 6 This is a schematic diagram of the spiral stirring mechanism of this utility model. Detailed Implementation

[0030] To make the utility model's objectives, features, and advantages more apparent and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below 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 skilled in the art without creative effort are within the scope of protection of the present utility model.

[0031] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0032] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0033] like Figures 1 to 6 As shown, this utility model embodiment provides a flame retardant masterbatch mixing device with good mixing effect, including a frame 1, a mixing cylinder 2, a feeding pipe 3, a spiral stirring mechanism 4, a counterweight baffle mechanism 5, and a vibrating conveying mechanism 6.

[0034] The bottom of the mixing cylinder 2 is connected to the frame 1 via a weighing sensor 10. The mixing cylinder 2 has a receiving chamber 20 for holding the granular flame-retardant material to be mixed. The top of the mixing cylinder 2 is provided with a rotatable flip-top door 21 for closing or opening the receiving chamber 20. The weighing sensor 10 can detect the added weight of the flame-retardant material in the mixing cylinder 2, ensuring that each batch of flame-retardant material is added to the mixing cylinder 2 in the correct proportion, avoiding too much or too little material from affecting the mixing effect. The flip-top door 21 is in a closed state during the mixing process to prevent material leakage or splashing during the stirring and mixing process.

[0035] The spiral stirring mechanism 4 is located inside the mixing cylinder 2. The spiral stirring mechanism 4 is used to stir and mix the flame retardant material inside the mixing cylinder 2. The spiral stirring mechanism 4 can uniformly stir the granular flame retardant material inside the mixing cylinder 2 through rotational motion, so that the components are fully mixed inside the mixing cylinder 2.

[0036] The feeding pipe 3 is clamped to the side wall of the mixing cylinder 2 by a clamp. The top of the feeding pipe 3 has a discharge hood 30. The opening of the discharge hood 30 is located at the bottom of the flip-top door 21. The feeding pipe 3 is used to transport granular flame-retardant materials into the receiving chamber 20 by airflow, so as to avoid the flame-retardant materials from being concentrated in a certain area of ​​the mixing cylinder 2 and causing excessive local accumulation. In this embodiment, the opening length of the discharge hood 30 is slightly smaller than the length of the mixing cylinder 2. This setting can improve the uniformity of the distribution of flame-retardant materials and achieve uniform feeding of flame-retardant materials.

[0037] The mixing cylinder 2 has a discharge port 200 at its bottom. A counterweight baffle mechanism 5 is located at the bottom of the discharge port 200. The counterweight baffle mechanism 5 is used to block or open the discharge port 200. The vibrating conveying mechanism 6 includes a material bed 61, a vibrating motor 62, and an elastic connecting arm 63. The material bed 61 is inclined below the mixing cylinder 2 to receive the flame-retardant material falling from the mixing cylinder 2. The material bed 61 is connected to the frame 1 via the elastic connecting arm 63. The vibrating motor 62 is located on the side wall of the material bed 61 and is used to drive the material bed 61 to vibrate. Granular flame-retardant materials tend to re-aggregate or adhere after mixing. The vibrating conveying mechanism 6, through the action of the vibrating motor 62, keeps the flame-retardant material in a loose, moving state, preventing particle agglomeration and thus improving the uniformity of material conveying.

[0038] like Figure 4 and Figure 5As shown, the counterweight baffle mechanism 5 further includes a blocking baffle 51, a lifting frame 52, a swing arm 53, and a counterweight block 54. The blocking baffle 51 is located at the bottom of the discharge port 200 and is connected to the lifting frame 52. The middle part of the swing arm 53 is rotatably connected to the side wall of the mixing cylinder 2 via a pin. One end of the swing arm 53 is connected to the lifting frame 52, and the other end of the swing arm 53 is connected to the counterweight block 54. The counterweight block 54 is used to apply an upward force to the blocking baffle 51 so that the blocking baffle 51 is tightly attached to the discharge port 200. When the flame-retardant material in the mixing cylinder 2 has completed the mixing operation and needs to be discharged, the feeding pipe 3 conveys a new batch of flame-retardant material into the mixing cylinder 2. At this time, the weight of the material in the mixing cylinder 2 is greater than the set value. The sealing baffle 51 can overcome the gravity of the counterweight 54 and drive the swing arm 53 to swing through the lever principle, causing the sealing baffle 51 to sink and gradually move away from the discharge port 200. This allows the flame-retardant material at the bottom of the mixing cylinder 2 to fall into the vibrating conveyor 6 through the discharge port 200 for conveying. When the flame-retardant material discharge is close to the set amount, the feeding pipe 3 stops feeding, and the counterweight 54 can automatically push the sealing baffle 51 back to the discharge port 200 with the help of gravity to seal it and stop the discharge. The entire discharge process is intermittently regulated and controlled by gravity to avoid local material accumulation caused by instantaneous large discharge.

[0039] like Figure 1 As shown, the end of the material bed 61 is provided with a discharge channel 610. The height of the material bed 61 gradually decreases along the direction close to the discharge channel 610, which causes the flame retardant material to slide down naturally under the action of vibration and enter the discharge channel 610 to realize the discharge, thus avoiding the flame retardant material from being stuck and accumulated on the material bed 61.

[0040] like Figure 2 As shown, the counterweight baffle mechanism 5 further includes a counterweight connecting arm 55, which is used to connect the counterweight blocks 54 located on both sides of the mixing cylinder 2. This arrangement can improve the balance of the counterweight baffle mechanism 5 and prevent the counterweight block 54 on one side from being overloaded and tilting during the movement.

[0041] like Figure 1 and Figure 6As shown, the spiral stirring mechanism 4 further includes a reduction motor 41, a rotating shaft 42, a first spiral blade 43, and a second spiral blade 44. The reduction motor 41 is located at the side end of the frame 1, and its output end is connected to the rotating shaft 42 to drive the rotating shaft 42 to rotate. The rotating shaft 42 is located inside the mixing cylinder 2. The first spiral blade 43 and the second spiral blade 44 are respectively arranged around the length of the rotating shaft 42. The diameter of the first spiral blade 43 is larger than the diameter of the second spiral blade 44. The first spiral blade 43 and the second spiral blade 44, combined, can process flame-retardant materials at different locations within the mixing cylinder 2, thereby promoting uniform dispersion of the flame-retardant materials from the inner wall to the central area of ​​the mixing cylinder 2 through multi-layered stirring, effectively improving the mixing effect.

[0042] like Figure 6 As shown, further, the surface of the first spiral blade 43 is provided with a plurality of through holes 430. The through holes 430 allow the flame-retardant material to pass through the first spiral blade 43 during the stirring process, thereby reducing the stirring resistance and improving the mixing and flow effect of the flame-retardant material.

[0043] like Figure 3 As shown, it further includes an electric push rod 22, which is disposed on the side wall of the mixing cylinder 2. The movable end of the electric push rod 22 is connected to the flip door 21 to drive the flip door 21 to flip up and down, thereby reducing human intervention and improving the operating efficiency of the equipment.

[0044] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A flame-retardant masterbatch mixing device with good mixing effect, characterized in that, It includes a frame, mixing cylinder, feeding pipe, spiral mixing mechanism, counterweight baffle mechanism, and vibrating conveying mechanism; The bottom of the mixing cylinder is connected to the frame via a weighing sensor. The mixing cylinder has a accommodating chamber for holding the granular flame-retardant material to be mixed. The top of the mixing cylinder is provided with a rotatable flip-top door for closing or opening the accommodating chamber. The spiral stirring mechanism is located inside the mixing cylinder, and the spiral stirring mechanism is used to stir and mix the flame-retardant materials inside the mixing cylinder; The feeding pipe is clamped to the side wall of the mixing cylinder by a clamp. The top of the feeding pipe has a discharge hood, the opening of which is located at the bottom of the flip-top door. The feeding pipe is used to transport granular flame-retardant materials into the accommodating chamber by airflow. The mixing cylinder has a discharge port at the bottom, and the counterweight baffle mechanism is located at the bottom of the discharge port. The counterweight baffle mechanism is used to block or open the discharge port. The vibrating conveying mechanism includes a material bed, a vibrating motor, and an elastic connecting arm. The material bed is inclined below the mixing cylinder to receive flame-retardant materials falling from the mixing cylinder. The material bed is connected to the frame through the elastic connecting arm. The vibrating motor is located on the side wall of the material bed and is used to drive the material bed to vibrate.

2. The flame-retardant masterbatch mixing device with good mixing effect according to claim 1, characterized in that, The counterweight baffle mechanism includes a blocking baffle, a lifting frame, a swing arm, and a counterweight block; The blocking baffle is located at the bottom of the discharge port and is connected to the lifting frame. The middle part of the swing arm is rotatably connected to the side wall of the mixing cylinder through a pin. One end of the swing arm is connected to the lifting frame, and the other end of the swing arm is connected to the counterweight. The counterweight is used to apply an upward force to the blocking baffle so that the blocking baffle is tightly attached to the discharge port.

3. The flame-retardant masterbatch mixing device with good mixing effect according to claim 1, characterized in that, The end of the material bed is provided with a discharge channel, and the height of the material bed gradually decreases along the direction close to the discharge channel. The discharge channel is used to transport flame-retardant materials that have been dispersed by vibration.

4. The flame-retardant masterbatch mixing device with good mixing effect according to claim 2, characterized in that, The counterweight baffle mechanism also includes a counterweight connecting arm, which is used to connect the counterweight blocks located on both sides of the mixing cylinder.

5. The flame-retardant masterbatch mixing device with good mixing effect according to claim 1, characterized in that, The spiral stirring mechanism includes a geared motor, a rotating shaft, a first spiral blade, and a second spiral blade; The geared motor is located on the side of the frame, and the output end of the geared motor is connected to the rotating shaft to drive the rotating shaft to rotate. The rotating shaft is located inside the mixing cylinder. The first spiral blade and the second spiral blade are respectively arranged around the length of the rotating shaft, and the diameter of the first spiral blade is larger than the diameter of the second spiral blade.

6. The flame-retardant masterbatch mixing device with good mixing effect according to claim 5, characterized in that, The surface of the first helical blade is provided with several through holes.

7. The flame-retardant masterbatch mixing device with good mixing effect according to claim 1, characterized in that, It also includes an electric push rod, which is located on the side wall of the mixing cylinder. The movable end of the electric push rod is connected to the flip door to drive the flip door to flip up and down.

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