Quantitative conveying device for twin-screw metering flame-retardant master batch

Abstract

The utility model discloses a double screw metering formula film flame -retardant master batch ration conveying device, especially relates to ration conveying technical field, including fixed frame, conveying cylinder, hopper, two conveying assemblies, drive mechanism, blanking cylinder, weighing cylinder, discharge pipe and weighing mechanism, when working, film flame -retardant master batch falls into conveying cylinder from hopper, and drive mechanism drives conveying assembly to rotate, and will master batch be conveyed to blanking cylinder, and then fall into the weighing mechanism on weighing cylinder, and weighing mechanism real -time detection master batch weight, and drive mechanism stops when reaching setting value, and weighing mechanism opens discharge pipe through turning on plate, and master batch is discharged. The utility model discloses through double screw synchronous conveying and double weighing ware alternate weighing design, effectively improves master batch conveying efficiency and ration accuracy, realizes the automation ration conveying, is applicable to the processing production of film flame -retardant master batch.

Description

Technical Field

[0001] This utility model relates to the field of quantitative conveying technology, and more specifically, to a twin-screw metering quantitative conveying device for flame-retardant masterbatch. Background Technology

[0002] In the field of film production, flame-retardant masterbatch is typically added to impart flame-retardant properties to films. Flame-retardant masterbatch is produced by mixing flame retardants with carrier resins and other raw materials through processes such as melt extrusion and granulation. The amount added to the film must be precisely controlled to ensure stable flame-retardant effects and other properties. Quantitative delivery is a critical step in the processing and application of flame-retardant masterbatch, as its accuracy directly affects the consistency of film product quality and the stability of its flame-retardant performance.

[0003] Currently, existing quantitative conveying devices for flame-retardant masterbatch in the market suffer from insufficient quantitative accuracy in practical use. For example, traditional conveying devices often use single-screw conveyors, which are prone to material accumulation and unstable conveying volume during the conveying process. Weighing mechanisms are mostly designed with a single weighing device, which is susceptible to masterbatch adhesion to the surface during weighing, leading to measurement errors and affecting the conveying volume of masterbatch, thus failing to accurately meet production needs. Furthermore, existing devices have a low level of automation, requiring frequent manual intervention and adjustments, which not only increases labor intensity but also reduces production efficiency.

[0004] Therefore, a twin-screw metering quantitative conveying device for flame-retardant masterbatch is proposed to improve the quantitative conveying accuracy and automation level, thereby overcoming the shortcomings of the existing technology. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a twin-screw metering thin-film flame retardant masterbatch quantitative conveying device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a twin-screw metering type film flame retardant masterbatch quantitative conveying device, including a fixed frame, a conveying cylinder supported on the fixed frame, a hopper at the top of one end of the conveying cylinder, two cooperating conveying components inside the conveying cylinder, a bracket at one end of the conveying cylinder, a drive mechanism meshing with the two conveying components mounted on the bracket, a discharge cylinder at the bottom of the other end of the conveying cylinder, a weighing cylinder at the bottom of the discharge cylinder, a discharge pipe at the bottom of the weighing cylinder, and a weighing mechanism inside the weighing cylinder.

[0007] By placing the film flame retardant masterbatch in a hopper, during conveying, the drive mechanism operates, causing two conveying components to rotate synchronously, thereby conveying the film flame retardant masterbatch falling from the hopper to the feeding cylinder. Then, it falls from the feeding cylinder onto the weighing mechanism inside the weighing cylinder. The weighing mechanism detects the weight of the falling film flame retardant masterbatch. When the weight of the film flame retardant masterbatch reaches the quantitative set value, the drive mechanism stops running, and then the second motor inside the weighing mechanism runs, opening the discharge pipe, thereby discharging the film flame retardant masterbatch from the discharge pipe to the continuing processing position, thus completing the quantitative conveying of the film flame retardant masterbatch.

[0008] Preferably, the conveying assembly includes a screw body and a follower gear. The screw body is rotatably installed inside the conveying cylinder, and one end of the screw body is provided with a follower gear that meshes with the drive mechanism.

[0009] Preferably, the driving mechanism includes a first motor, a first rotating rod, and a driving gear. The first motor is mounted on a bracket, the output end of the first motor is connected to the first rotating rod, and the driving gear is coaxially mounted on the first rotating rod.

[0010] Preferably, there are two conveying components, and both follower gears are meshed with the drive gear.

[0011] Preferably, the weighing mechanism includes a second motor, a second rotating rod, a tilting plate, a first weighing device, and a second weighing device. The second motor is installed on the outside of the weighing cylinder, and the output end of the second motor is connected to the second rotating rod. The tilting plate is installed on the second rotating rod, the first weighing device is installed on the top of the tilting plate, and the second weighing device is installed on the bottom of the tilting plate.

[0012] Preferably, the weighing cylinder has a spherical hollow structure, and the flip plate is slidably connected to the inner wall of the weighing cylinder.

[0013] The technical effects and advantages of this utility model are as follows:

[0014] 1. By setting up a twin-screw conveyor assembly, the two screw bodies rotate synchronously under the drive mechanism, which can stably and efficiently convey the film flame retardant masterbatch in the hopper to the feeding cylinder, significantly improving the conveying efficiency compared with the traditional single-screw conveying method.

[0015] 2. The weighing mechanism is equipped with a tilting plate and first and second weighing devices. After the first weighing device completes the weighing and discharges the masterbatch, the tilting plate can drive the second weighing device to tilt upwards, avoiding the masterbatch adhering to the surface of the first weighing device and affecting the next weighing. At the same time, the weighing cylinder has a spherical hollow structure, and the tilting plate is slidably connected to the inner wall, making the tilting more flexible and further improving the accuracy of weighing and ensuring the quantitative conveying accuracy.

[0016] 3. By cooperating with the driving mechanism and the weighing mechanism, the conveying, weighing and discharge of masterbatch can be automated. When the weighing mechanism detects that the weight of the masterbatch has reached the set value, the driving mechanism automatically stops running. Then the weighing mechanism opens the discharge pipe to discharge the masterbatch, reducing manual intervention and improving production efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the internal structure of the weighing cylinder of this utility model.

[0019] Figure 3 This is a schematic diagram of the connection structure between the drive mechanism and the conveying component of this utility model.

[0020] Figure 4 This is a schematic diagram of the weighing mechanism of this utility model.

[0021] The attached figures are labeled as follows: 1. Fixed frame; 2. Conveying cylinder; 3. Hopper; 4. Conveying assembly; 401. Screw body; 402. Follower gear; 5. Support; 6. Drive mechanism; 601. First motor; 602. First rotating rod; 603. Drive gear; 7. Feeding cylinder; 8. Weighing cylinder; 9. Discharge pipe; 10. Weighing mechanism; 1001. Second motor; 1002. Second rotating rod; 1003. Tilting plate; 1004. First weighing device; 1005. Second weighing device. Detailed Implementation

[0022] 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.

[0023] As attached Figure 1-4 The illustrated twin-screw metering flame-retardant masterbatch quantitative conveying device includes a fixed frame 1, on which a conveying cylinder 2 is supported. A hopper 3 is provided at the top of one end of the conveying cylinder 2. Two cooperating conveying components 4 are provided inside the conveying cylinder 2. A bracket 5 is provided at one end of the conveying cylinder 2. A drive mechanism 6 that meshes with the two conveying components 4 is installed on the bracket 5. A discharge cylinder 7 is provided at the bottom of the other end of the conveying cylinder 2. A weighing cylinder 8 is provided at the bottom of the discharge cylinder 7. A discharge pipe 9 is provided at the bottom of the weighing cylinder 8. A weighing mechanism 10 is provided inside the weighing cylinder 8.

[0024] In practice, the flame retardant masterbatch is placed in the hopper 3. During conveying, the drive mechanism 6 operates, causing the two conveying components 4 to rotate synchronously, thereby conveying the flame retardant masterbatch falling from the hopper 3 to the feeding cylinder 7. Then, it falls from the feeding cylinder 7 onto the weighing mechanism 10 in the weighing cylinder 8. The weighing mechanism 10 detects the weight of the falling flame retardant masterbatch. When the weight of the flame retardant masterbatch reaches the quantitative set value, the drive mechanism 6 stops running, and then the second motor 1001 in the weighing mechanism 10 runs, opening the discharge pipe 9, thereby discharging the flame retardant masterbatch from the discharge pipe 9 to the continuing processing position, thus completing the quantitative conveying of the flame retardant masterbatch.

[0025] The conveying assembly 4 includes a screw body 401 and a follower gear 402. The screw body 401 is rotatably installed inside the conveying cylinder 2, and one end of the screw body 401 is provided with a follower gear 402 that meshes with the drive mechanism 6.

[0026] The drive mechanism 6 includes a first motor 601, a first rotating rod 602, and a drive gear 603. The first motor 601 is mounted on the bracket 5. The output end of the first motor 601 is connected to the first rotating rod 602. The drive gear 603 is coaxially mounted on the first rotating rod 602.

[0027] The conveying assembly 4 is provided in two parts, and both follower gears 402 are meshed with the drive gear 603.

[0028] In practice, the first motor 601 operates, causing the first rotating rod 602 to drive the drive gear 603 to rotate, thereby causing the two follower gears 402 to synchronously drive the corresponding screw bodies 401 to rotate, and conveying the film flame retardant masterbatch during the rotation of the two screw bodies 401.

[0029] The weighing mechanism 10 includes a second motor 1001, a second rotating rod 1002, a tilting plate 1003, a first weighing device 1004, and a second weighing device 1005. The second motor 1001 is installed on the outside of the weighing cylinder 8. The output end of the second motor 1001 is connected to the second rotating rod 1002. The tilting plate 1003 is installed on the second rotating rod 1002. The first weighing device 1004 is installed on the top of the tilting plate 1003, and the second weighing device 1005 is installed on the bottom of the tilting plate 1003.

[0030] The weighing cylinder 8 has a spherical hollow structure, and the flip plate 1003 is slidably connected to the inner wall of the weighing cylinder 8.

[0031] In practice, the flame retardant masterbatch falls from the feeding cylinder 7 onto the first weighing device 1004. The first weighing device 1004 weighs the flame retardant masterbatch. When the weight reaches the set value, the first motor 601 stops running, stopping the conveying of the flame retardant masterbatch. The second motor 1001 starts, causing the second rotating rod 1002 to drive the flipping plate 1003 to rotate, thereby opening the discharge pipe 9 and discharging the flame retardant masterbatch. When the reading of the first weighing device 1004 returns to zero, the second rotating rod 1002 continues to rotate, flipping the second weighing device 1005 onto the first weighing device 1004, thus avoiding any adhesion on the surface of the first weighing device 1004 and improving the quantitative conveying accuracy.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A twin-screw metering type quantitative conveying device for flame-retardant masterbatch film, comprising a fixed frame (1), characterized in that: The fixed frame (1) supports a conveying cylinder (2). A hopper (3) is provided at the top of one end of the conveying cylinder (2). Two cooperating conveying components (4) are provided inside the conveying cylinder (2). A bracket (5) is provided at one end of the conveying cylinder (2). A drive mechanism (6) that meshes with the two conveying components (4) is installed on the bracket (5). A discharge cylinder (7) is provided at the bottom of the other end of the conveying cylinder (2). A weighing cylinder (8) is provided at the bottom of the discharge cylinder (7). A discharge pipe (9) is provided at the bottom of the weighing cylinder (8). A weighing mechanism (10) is provided inside the weighing cylinder (8).

2. The twin-screw metering type film flame retardant masterbatch quantitative conveying device according to claim 1, characterized in that: The conveying assembly (4) includes a screw body (401) and a follower gear (402). The screw body (401) is rotatably installed inside the conveying cylinder (2). One end of the screw body (401) is provided with a follower gear (402) that meshes with the drive mechanism (6).

3. The twin-screw metering type film flame retardant masterbatch quantitative conveying device according to claim 2, characterized in that: The drive mechanism (6) includes a first motor (601), a first rotating rod (602) and a drive gear (603). The first motor (601) is mounted on the bracket (5). The output end of the first motor (601) is connected to the first rotating rod (602). The drive gear (603) is coaxially mounted on the first rotating rod (602).

4. The twin-screw metering type film flame retardant masterbatch quantitative conveying device according to claim 3, characterized in that: The conveying assembly (4) is provided in two parts, and both follower gears (402) are meshed with the drive gear (603).

5. The twin-screw metering type film flame retardant masterbatch quantitative conveying device according to claim 4, characterized in that: The weighing mechanism (10) includes a second motor (1001), a second rotating rod (1002), a tilting plate (1003), a first weighing device (1004), and a second weighing device (1005). The second motor (1001) is installed on the outside of the weighing cylinder (8). The output end of the second motor (1001) is connected to the second rotating rod (1002). The tilting plate (1003) is installed on the second rotating rod (1002). The first weighing device (1004) is installed on the top of the tilting plate (1003), and the second weighing device (1005) is installed on the bottom of the tilting plate (1003).

6. The twin-screw metering type film flame retardant masterbatch quantitative conveying device according to claim 5, characterized in that: The weighing cylinder (8) has a spherical hollow structure, and the flip plate (1003) is slidably connected to the inner wall of the weighing cylinder (8).

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