Automatic conveying, distributing and feeding device for granulation soft materials

Abstract

The utility model relates to a feeding device, in particular to an automatic conveying, distributing and feeding device for granulation soft materials. Comprising a buffering bin used for receiving viscous soft materials, a conveying part and a driving part. The surge bin comprises a first material receiving groove and a second material receiving groove; the conveying part is located at the bottom of the first material receiving groove, and the output end of the conveying part is connected with the second material receiving groove. The conveying part comprises a feeding bin and a shaftless spiral piece located in the feeding bin, and the gap between the shaftless spiral piece and the feeding bin is smaller than 3 mm. The driving part is used for driving the shaftless spiral piece to rotate; the automatic conveying, distributing and feeding device for the granulation soft materials can completely replace physical labor, can uniformly distribute the materials, and has the advantages of guaranteeing uniform discharging and improving product quality and efficiency.

Description

Technical Field

[0001] This utility model relates to a feeding device, specifically an automatic conveying and distributing feeding device for granulated soft materials. Background Technology

[0002] During the process of feeding the soft material after wet mixing and granulation to the gyratory pellet mill, issues such as high manpower requirements and uneven material distribution often arise due to factors like labor and material availability. Previously, manual feeding and material distribution were used, but this method has two major drawbacks. Drawback one: Manual feeding requires a large amount of manpower and is physically demanding. Drawback two: Manual material distribution leads to uneven material feeding, affecting pelleting quality and efficiency. Utility Model Content

[0003] The present invention aims to provide an automatic conveying, distributing and feeding device for granulated soft materials, which can eliminate manual labor, distribute materials evenly, ensure uniform feeding, and improve product quality and efficiency.

[0004] This solution provides an automatic conveying and dispensing device for granulated soft materials, comprising a buffer bin for receiving viscous soft materials, a conveying section, and a driving section. The buffer bin includes a first receiving trough and a second receiving trough. The conveying section is located at the bottom of the first receiving trough, and its output end is connected to the second receiving trough. The wet-granulated soft materials sequentially pass through the first receiving trough, the conveying section, and the second receiving trough. The conveying section includes a feeding bin and a shaftless spiral blade located within the feeding bin. The gap between the shaftless spiral blade and the feeding bin is less than 3 mm. The shaftless spiral blade agitates and conveys the viscous soft materials within the feeding bin. The driving section drives the shaftless spiral blade to rotate.

[0005] The advantages of this invention are: 1) The gap between the shaftless spiral blade and the feeding hopper is less than 3mm. When the gap is less than 3mm, the shaftless spiral blade forms a tight contact with the bottom of the feeding hopper during rotation. The edge of the spiral blade generates continuous stirring and squeezing action on the sticky soft material, scraping off the material adhering to the bottom and pushing it forward in the conveying direction. Due to the extremely small gap, the material cannot accumulate at the bottom, thus achieving a self-cleaning function. Through the stirring and squeezing of the soft material by the shaftless spiral blade, the soft material at the bottom of the feeding hopper is carried away during the conveying process, achieving self-cleaning of the inner wall of the feeding hopper. 2) Because the shaftless spiral blade adopts an anti-clogging design without a central shaft structure, it greatly reduces material entanglement, which is especially suitable for sticky soft materials. 3) The stirring and conveying of sticky soft materials by the shaftless spiral blade results in uniform material feeding, improving granulation quality and efficiency.

[0006] Furthermore, the axial tilt angle of the shaftless spiral blade is ≤15°. Specifically, the shaftless spiral blade is inclined towards the second receiving trough, with a spiral conveying tilt angle ≤15°. This smaller tilt angle (≤15°) reduces the possibility of material backflow due to gravity. At this angle, the gravitational component experienced by the viscous soft material along the axial conveying direction of the spiral blade is smaller, while the propulsive force of the spiral blade dominates, reducing energy loss. Simultaneously, the smaller tilt angle increases the contact area between the material and the spiral blade, enhancing the continuity and stability of the conveying process, thereby improving conveying efficiency and ensuring that the conveying efficiency of viscous soft materials is >85%.

[0007] Furthermore, the drive unit includes a motor and a torque protection device; the torque protection device is located between the motor and the shaftless spiral blade to prevent overload from damaging the motor.

[0008] Furthermore, the motor is controlled by a frequency converter with an adjustment range of 5–50 Hz. The motor speed is controlled by changing the frequency of the power supply, where a power supply frequency of 5–50 Hz corresponds to a speed of approximately 3–30 rpm.

[0009] Furthermore, it also includes a level sensor, which is used to detect the transmission status of the wet granulation soft material. Based on the real-time transmission status feedback from the level sensor, the motor speed is adjusted to achieve adaptive speed regulation of the shaftless spiral vane conveyor.

[0010] Furthermore, the bottom of the second receiving trough is provided with a connection port for connecting to an extruder. Attached Figure Description

[0011] Figure 1 This is a perspective view of an automatic conveying, distributing and feeding device for granulated soft materials according to this utility model;

[0012] Figure 2 This is a front view of an automatic conveying, distributing and feeding device for granulated soft materials according to this utility model;

[0013] Figure 3 This is a top view of an automatic conveying, distributing and feeding device for granulated soft materials according to this utility model;

[0014] Figure 4 This is a side view of an automatic conveying, distributing and feeding device for granulated soft materials according to this utility model;

[0015] Figure 5 for Figure 2 A cross-sectional view of C-C.

[0016] Figure 6 for Figure 5 Enlarged view of H in the middle;

[0017] Figure 7This is a schematic diagram of the connection and installation of an automatic conveying, distributing and feeding device for granulated soft materials according to this utility model.

[0018] In the diagram, 1 is a wet mixing pellet mill, 1-1 is the discharge port, 2 is the feeding device, 2-1 is the buffer bin, 2-11 is the first receiving trough, 2-12 is the second receiving trough, 2-13 is the connection port, 2-2 is the conveying unit, 2-21 is the feeding bin, 2-22 is the shaftless spiral vane, 2-3 is the drive unit, 2-31 is the motor, 2-32 is the torque protection device, 2-4 is the support frame, 3 is the oscillating pellet mill, and 4 is the material level sensor. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0020] This solution includes an automatic conveying, distributing, and feeding device for granulated soft materials, such as... Figures 1 to 6 As shown, the buffer chamber 2-1 is fixedly connected to the bracket 2-4. The buffer chamber 2-1 includes a first receiving trough 2-11 and a second receiving trough 2-12. The bottom of the first receiving trough 2-11 is provided with a conveying part 2-2. The conveying part 2-2 includes a feeding bin 2-21 and a shaftless spiral blade 2-22 located inside the feeding bin 2-21. Specifically, the outlet of the first receiving trough 2-11 is connected to the inlet end of the feeding bin 2-21, and the outlet end of the feeding bin 2-21 is connected to the inlet of the second receiving trough 2-12. The drive part 2-3 is fixedly connected to one side of the bracket 2-4 and is used to drive the shaftless spiral blade 2-22.

[0021] The wet-granulated soft material sequentially passes through the first receiving trough 2-11, the conveying section 2-2, and the second receiving trough 2-12. To ensure the self-cleaning effect of the conveying section 2-2, the gap between the shaftless spiral blade 2-22 and the bottom of the feeding hopper 2-21 is less than 3mm. The axial tilt angle of the shaftless spiral blade 2-22 is ≤15°, ensuring a conveying efficiency of >85% for the viscous soft material.

[0022] The drive unit 2-3 specifically includes a motor 2-31 and a torque protection device 2-32. The torque protection device 2-32 is located between the motor 2-31 and the shaftless spiral vane 2-22 to prevent overload damage to the motor 2-31. The motor 2-31 is controlled by a frequency converter with an adjustment range of 5–50 Hz. The power frequency of 5–50 Hz corresponds to a speed of approximately 3–30 rpm.

[0023] It also includes a level sensor, which is used to detect the transmission status of the wet granulation soft material. Based on the real-time transmission status feedback from the level sensor, the rotational speed of motor 2-31 is adjusted to achieve adaptive speed regulation of the conveying speed of shaftless spiral vane 2-22.

[0024] like Figure 7As shown, the wet mixing granulator 1 is the upstream device of the feeding device 2, and the swing granulator 3 is the downstream device of the feeding device 2. Specifically, the feeding device 2 is located below the discharge port 1-1 of the wet mixing granulator 1. The swing granulator 3 is fixedly connected to the connection port 2-13 of the second receiving trough 2-12.

[0025] The soft granules produced by the wet mixing granulator 1 fall into the feeding device 2 through the discharge port 1-1 under the action of their own inertia and gravity. At this time, the soft material is evenly conveyed to the swing granulator 3 connected below by the shaftless spiral blades 2-22 of the feeding device 2. At the same time, the material level sensor 4 adjusts the speed of the motor 2-31 through the frequency converter based on the detected state of the soft material.

[0026] The above description is merely an embodiment of this utility model, and common knowledge such as specific structures and characteristics of the solution is not described in detail here. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model, and these should also be considered within the protection scope of this utility model. These modifications and improvements will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. An automatic conveying, distributing, and feeding device for granulated soft materials, characterized in that: The device includes a buffer chamber for receiving viscous soft material, a conveying section, and a driving section; the buffer chamber includes a first receiving trough and a second receiving trough; the conveying section is located at the bottom of the first receiving trough, and the output end of the conveying section is connected to the second receiving trough; the conveying section includes a feeding bin and a shaftless spiral blade located in the feeding bin, and the gap between the shaftless spiral blade and the bottom of the feeding bin is less than 3mm. The drive unit is used to drive the shaftless spiral blade to rotate.

2. The automatic conveying, distributing and feeding device for granulated soft materials according to claim 1, characterized in that: The axis tilt angle of the shaftless spiral blade is ≤15°.

3. The device according to claim 1, wherein: The drive unit includes a motor and a torque protection device; the torque protection device is located between the motor and the shaftless spiral blade.

4. The device according to claim 3, wherein: The motor is controlled by a frequency converter, and the frequency converter has an adjustment range of 5 to 50 Hz.

5. The granulating soft material automatic conveying, distributing and feeding device according to claim 1, characterized in that: It also includes a level sensor, which is used to detect the transmission status of wet granulation soft material.

6. The granulating soft material automatic conveying, dispensing and feeding device according to claim 1, characterized in that: The bottom of the second receiving trough is provided with a connection port for connecting to an extruder.

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