A quantitative feeding device for granular materials

Abstract

This utility model relates to the field of quantitative feeding technology and discloses a quantitative feeding device for granular materials, including a supporting base plate. Two support rods are fixedly connected to the top of the supporting base plate, and a material hopper is fixedly connected to the top of the two support rods. A discharge port is provided at the bottom of the material hopper. A rotating hole is opened at the top of the supporting base plate, and a rotating shaft is rotatably connected within the rotating hole. A first synchronous wheel is fixedly connected to the bottom surface of the rotating shaft, and a receiving tray is fixedly connected to the top of the rotating shaft. The receiving tray has four square holes, and a mounting frame is fixedly connected to the bottom of the supporting base plate. Through the cooperation of the square holes on the receiving tray with the discharge port and the discharge hole, and the intermittent rotation of the receiving tray driven by a stepper motor, a single quantitative feeding is achieved with each rotation. The volume of the square holes determines the amount of material fed in a single operation, providing a stable and accurate supply of raw materials for processes such as woven bag production, ensuring product quality and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of quantitative feeding technology, specifically a quantitative feeding device for granular materials. Background Technology

[0002] Woven bags, also known as snake-skin bags, are a type of plastic bag used for packaging. Their raw materials are generally various chemical plastic materials such as polyethylene and polypropylene. The weaving density refers to the number of warp and weft yarns in a 100mm×100mm woven fabric.

[0003] In the production of products such as woven bags, granular raw materials need to be supplied to equipment such as extruders. Traditional granular feeding methods often struggle to achieve precise quantitative feeding, leading to unstable feed rates that affect product quality and efficiency. Therefore, there is an urgent need for a quantitative granular feeding device. Utility Model Content

[0004] The purpose of this invention is to provide a quantitative feeding device for granular materials to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a quantitative feeding device for granular materials, including a supporting base plate, two support rods fixedly connected to the top of the supporting base plate, a material bin fixedly connected to the top of the two support rods, and a discharge port provided at the bottom of the material bin;

[0006] The top of the support base plate has a rotating hole, and a rotating shaft is rotatably connected in the rotating hole. A first synchronous pulley is fixedly connected to the bottom of the rotating shaft surface, and a receiving tray is fixedly connected to the top of the rotating shaft. The receiving tray has four square holes. A mounting bracket is fixedly connected to the bottom of the support base plate, and a stepper motor is fixedly connected to the mounting bracket. A second synchronous pulley is fixedly connected to the output shaft of the stepper motor. The first synchronous pulley and the second synchronous pulley are connected by a synchronous belt drive.

[0007] Preferably, the four square holes are arranged in a rectangular array, and the discharge port is adapted to the square holes.

[0008] Preferably, the support base plate has a feeding hole, and a feeding pipe is fixedly connected to the bottom of the feeding hole. The feeding hole is adapted to a square hole.

[0009] Preferably, the top of the receiving tray is fitted with the bottom of the material bin with a clearance fit, and the bottom of the receiving tray is fitted with the supporting base plate with a clearance fit.

[0010] Preferably, the bottom of the support base plate is fixedly connected with four mounting ears, each of which is respectively located at one of the four corners of the bottom of the support base plate.

[0011] Preferably, a bracket is fixedly connected to the left side of the top of the material silo, a stirring motor is installed on the top of the bracket, a stirring shaft is fixedly connected to the output end of the stirring motor, and a spiral auger is fixedly connected to the surface of the stirring shaft.

[0012] Preferably, the bottom of the stirring shaft extends into the discharge port of the material hopper, and the lower half of the auger is located inside the discharge port.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0014] First, this utility model, through the cooperation of the square hole on the receiving tray with the discharge port and the feeding hole, and the stepper motor driving the receiving tray to rotate intermittently, achieves single quantitative feeding with each rotation. The volume of the square hole determines the amount of material fed at one time, which can provide a stable and accurate supply of raw materials for processes such as woven bag production, and ensure product production quality and efficiency.

[0015] Secondly, this utility model adds a stirring motor and a spiral auger to the top of the material silo. The lower half of the spiral auger is located inside the discharge port. The stirring motor drives the spiral auger to rotate, applying a downward pushing force to the granular material inside the discharge port. This can break up the granular material that has clumped due to moisture or static electricity and push it into the square hole of the receiving tray, thus completely solving the problem of material blockage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a front sectional view of the support base of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall front cross-section structure of this utility model;

[0019] Figure 4 This is a front sectional view of the support base and receiving tray of this utility model.

[0020] The components include: 1. Support base plate; 2. Support rod; 3. Material hopper; 4. Discharge port; 5. Rotating shaft; 6. First synchronous pulley; 7. Receiving tray; 8. Square hole; 9. Stepper motor; 10. Second synchronous pulley; 11. Synchronous belt; 12. Discharge hole; 13. Discharge pipe; 14. Mounting ear; 15. Bracket; 16. Agitator motor; 17. Agitator shaft; 18. Spiral auger. Detailed Implementation

[0021] 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.

[0022] This utility model provides the following technical solution:

[0023] Example 1

[0024] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 A quantitative feeding device for granular materials includes a supporting base plate 1, two support rods 2 are fixedly connected to the top of the supporting base plate 1, a material bin 3 is fixedly connected to the top of the two support rods 2, and a discharge port 4 is provided at the bottom of the material bin 3.

[0025] The top of the support base plate 1 has a rotating hole, and a rotating shaft 5 is rotatably connected in the rotating hole. A first synchronous wheel 6 is fixedly connected to the bottom of the surface of the rotating shaft 5. A receiving tray 7 is fixedly connected to the top of the rotating shaft 5. The receiving tray 7 has four square holes 8. A mounting bracket is fixedly connected to the bottom of the support base plate 1. A stepper motor 9 is fixedly connected to the mounting bracket. A second synchronous wheel 10 is fixedly connected to the output shaft of the stepper motor 9. The first synchronous wheel 6 and the second synchronous wheel 10 are connected by a synchronous belt 11.

[0026] The four square holes 8 are arranged in a rectangular array, and the discharge port 4 is adapted to the square holes 8.

[0027] A feeding hole 12 is provided on the support base plate 1, and a feeding pipe 13 is fixedly connected to the bottom of the feeding hole 12. The feeding hole 12 is compatible with the square hole 8.

[0028] The top of the receiving tray 7 is fitted with the bottom of the material bin 3 with a clearance fit, and the bottom of the receiving tray 7 is fitted with the supporting base plate 1 with a clearance fit.

[0029] The bottom of the support base plate 1 is fixedly connected with four mounting ears 14, each of which is located at one of the four corners of the bottom of the support base plate 1.

[0030] Through the above technical solution, the supporting base plate 1 serves as the device base, and the top is supported by two support rods 2 to form a stable material storage structure for the material hopper 3. The bottom of the material hopper 3 is provided with a discharge port, which serves as the initial release channel for the granular material. The rotating shaft 5 is vertically arranged through the rotating hole of the supporting base plate 1, with the first synchronous wheel 6 fixed at the bottom and the receiving tray 7 connected at the top. The receiving tray 7 has four square holes 8 arranged in a rectangular array, forming a triple alignment structure with the discharge port 4 of the material hopper 3 and the discharge hole 12 of the supporting base plate 1. The stepper motor 9 is fixed to the bottom of the supporting base plate 1 by a mounting bracket, and its output shaft is connected to the first synchronous wheel 6. Two synchronous pulleys 10 are driven by the first synchronous pulley 6 via synchronous belt 11, driving the receiving tray 7 to rotate intermittently. In the initial state, a square hole 8 is aligned with the discharge port 4, and the material is filled into the square hole. The stepper motor 9 drives the receiving tray 7 to rotate 90°. After filling, the square hole 8 rotates to the top of the discharge hole 12, and the material falls into the extruder through the discharge pipe 13. This process is repeated, and each rotation achieves a single quantitative feeding. The volume of the square hole 8 determines the single feeding amount. The gap fit between the receiving tray 7 and the bottom of the material bin 3 and the support base plate 1 ensures smooth rotation and prevents the granular material from leaking from the side.

[0031] Example 2

[0032] Please see Figure 1 and Figure 3 Furthermore, based on Example 1, the following is obtained: a bracket 15 is fixedly connected to the left side of the top of the material bin 3, a stirring motor 16 is installed on the top of the bracket 15, a stirring shaft 17 is fixedly connected to the output end of the stirring motor 16, and a spiral auger 18 is fixedly connected to the surface of the stirring shaft 17.

[0033] The bottom of the stirring shaft 17 extends into the discharge port 4 of the material bin 3, and the lower half of the spiral auger 18 is located inside the discharge port 4.

[0034] Through the above technical solution, a bracket 15 is added to the top left side of the material bin 3, and a stirring motor 16 is installed. Its output end is connected to a stirring shaft 17 extending into the discharge port 4. A spiral auger 18 is fixed on the surface of the stirring shaft 17, and the lower half is located inside the discharge port 4. The stirring motor 16 continuously drives the spiral auger 18 to rotate, applying a downward pushing force to the granular material in the discharge port. Even if the granular material in the material bin 3 clumps due to moisture or static electricity, the spiral auger 18 can break it up and push it into the square hole 8 of the receiving tray 7, completely solving the problem of material blockage.

[0035] In actual operation, when this device is in use, the stepper motor 9 drives the receiving tray 7 to rotate. The granular material in the material bin 3 falls into the square hole 8 of the receiving tray 7 through the discharge port 4 to achieve quantitative feeding. The receiving tray 7 continues to rotate, and the square hole 8 containing the granular material moves to the top of the discharge port 12. The granular material falls into the extruder and other equipment through the discharge pipe 13. The stirring motor 16 drives the auger 18 to rotate, so that the granular material in the material bin 3 flows more smoothly to the discharge port 4, ensuring the stable quantitative feeding, thereby providing a stable and accurate raw material supply for woven bag production and ensuring the quality and efficiency of woven bag production.

[0036] 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 may be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quantitative feeding device for granular materials, comprising a supporting base plate (1), characterized in that: The top of the support base plate (1) is fixedly connected to two support rods (2), and the top of the two support rods (2) is fixedly connected to a material bin (3). The bottom of the material bin (3) is provided with a discharge port (4). The top of the support base plate (1) is provided with a rotating hole, and a rotating shaft (5) is rotatably connected in the rotating hole. A first synchronous wheel (6) is fixedly connected to the bottom of the surface of the rotating shaft (5). A receiving tray (7) is fixedly connected to the top of the rotating shaft (5). Four square holes (8) are provided on the receiving tray (7). A mounting frame is fixedly connected to the bottom of the support base plate (1). A stepper motor (9) is fixedly connected to the mounting frame. A second synchronous wheel (10) is fixedly connected to the output shaft of the stepper motor (9). The first synchronous wheel (6) and the second synchronous wheel (10) are connected by a synchronous belt (11).

2. A granular material dosing device according to claim 1, characterised in that: The four square holes (8) are arranged in a rectangular array, and the discharge port (4) is adapted to the square holes (8).

3. A granular material dosing device according to claim 1, characterised in that: The support base plate (1) has a feeding hole (12), and a feeding pipe (13) is fixedly connected to the bottom of the feeding hole (12). The feeding hole (12) is compatible with the square hole (8).

4. A granular material dosing device according to claim 1, characterised in that: The top of the receiving tray (7) is fitted with the bottom of the material bin (3) with a clearance, and the bottom of the receiving tray (7) is fitted with the supporting base plate (1) with a clearance.

5. The quantitative feeding device for granular materials according to claim 1, characterized in that: The bottom of the support base plate (1) is fixedly connected with four mounting ears (14), each of which is located at one of the four corners of the bottom of the support base plate (1).

6. A granular material dosing device according to claim 1, characterized in that: A bracket (15) is fixedly connected to the left side of the top of the material silo (3). A stirring motor (16) is installed on the top of the bracket (15). A stirring shaft (17) is fixedly connected to the output end of the stirring motor (16). A spiral auger (18) is fixedly connected to the surface of the stirring shaft (17).

7. A granular material dosing device according to claim 6, characterised in that: The bottom of the stirring shaft (17) extends into the discharge port (4) of the material bin (3), and the lower half of the spiral auger (18) is located inside the discharge port (4).

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