Quantitative feeding device for materials

Abstract

The utility model discloses a material quantitative feeding device in the technical field of material feeding equipment, which comprises a rack, a stock bin is arranged above the rack, the stock bin is supported and mounted on the rack through a weighing sensor, and an electric control valve is arranged at a discharge port at the lower end of the stock bin. A buffer hopper, a star-shaped feeder, a flexible connecting pipe and an auger mechanism which are sequentially communicated and mounted are arranged below the stock bin; the weighing sensor, the electric control valve, the star feeder and the auger mechanism are electrically connected with the control processor unit; the stock bin adopts a weighing independent bearing type design, and a nesting gap is kept between the lower end of the stock bin and a downstream component, so that the weighing sensor can more accurately weigh the real-time weight of the stock bin, and the weighing error is reduced; and according to the feeding frequency required by the auger mechanism, the star-shaped feeder is controlled to perform batch and quantitative feeding, so that the problems of material blockage and the like caused by one-time discharging overload are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of material feeding equipment, in particular to a material quantitative feeding device. Background Art

[0002] Numerous industrial production processes, such as those in the chemical, food, and building materials industries, require precise material dosing. For example, in chemical production, inaccurate material dosing can affect the progress of chemical reactions and product quality. Traditional dosing systems have a low degree of automation, making it difficult to dynamically adjust to real-time production needs. Frequent manual intervention is often required, increasing labor intensity and further reducing dosing accuracy due to manual errors.

[0003] Existing material dosing devices can achieve quantitative addition of materials to a certain extent through weighing monitoring and automated control means. However, in actual production applications, the structural design of some dosing devices is not reasonable. For example, the lower end of the weighing hopper is softly connected to the frame, resulting in weighing accuracy errors; the material is discharged directly, which is not convenient for controlling the discharge frequency and is prone to material blockage and other problems, affecting the continuity and stability of production.

[0004] Based on this, the utility model designs a material quantitative dosing device to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a material quantitative dosing device to solve the above technical problems.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a material quantitative dosing device, comprising a frame, a silo is arranged above the frame, the silo is mounted on the frame through a weighing sensor, an electric control valve is provided at the outlet at the lower end of the silo, and a buffer hopper, a star feeder, a flexible connecting pipe and an auger mechanism are arranged below the silo and are connected and installed in sequence; it also includes a control processor unit, and the weighing sensor, electric control valve, star feeder and auger mechanism are respectively electrically connected to the control processor unit.

[0007] Preferably, the star feeder includes a casing that passes through from top to bottom, a star impeller is rotatably installed in the casing, the axle of the star impeller extends from one side of the casing and is transmission-connected to a feeding motor, and the feeding motor is electrically connected to the control processor unit.

[0008] Preferably, the auger mechanism includes a conveying cylinder, an auger feed port connected to the soft connecting tube is provided at the top of one end of the conveying cylinder, and an auger discharge port is provided at the bottom of the other end, an auger shaft is rotatably installed in the conveying cylinder, and an auger motor for driving the auger shaft is installed on the outside of one end of the conveying cylinder, and the auger motor is electrically connected to the control processor unit.

[0009] Preferably, a mounting opening is provided on the top plate of the frame, the silo is arranged in the mounting opening, and three connecting ears are circumferentially distributed on the outer wall of the silo, each of the connecting ears is fixedly installed on one end of the weighing sensor by a bolt, and the other end of the weighing sensor is fixedly installed on the mounting ring, and the mounting ring is fixedly installed on the edge of the mounting opening.

[0010] Preferably, the discharge port at the lower end of the silo extends into the inner cavity of the buffer hopper and maintains a nesting gap.

[0011] Preferably, the star-shaped feeder is fixedly mounted on the bottom of the top plate of the frame via a suspension platform.

[0012] Preferably, the auger mechanism is fixedly mounted on the partition of the frame via a support platform, and the top of the support platform is inclined.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model adopts a weighing independent load-bearing design for the silo, which is independently supported by three sets of weighing sensors. The lower end of the silo maintains a nested gap with the downstream components, so that the weighing sensors can more accurately weigh the real-time weight of the silo and reduce weighing errors.

[0015] The utility model also provides a buffer hopper and a star-shaped feeder mechanism between the silo and the auger mechanism. The quantitatively discharged materials can be temporarily stored in the buffer hopper. Then, the quantitative feeding can be carried out in batches according to the feeding frequency required by the auger mechanism and by controlling the star-shaped feeder, thereby avoiding problems such as material blockage caused by one-time discharge overload. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

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

[0018] Figure 2 This is a schematic diagram of the structure of the star-shaped feeder of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the auger mechanism of the utility model;

[0020] Figure 4 This is a schematic diagram of the load-bearing installation structure of the load cell of the utility model from a top view;

[0021] Figure 5 This is a schematic diagram of the electrical control connection of the utility model. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the utility model embodiments in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the utility model embodiments, not all of the embodiments. Based on the utility model embodiments, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of utility model protection.

[0023] See also Figure 1 , the utility model provides a technical solution:

[0024] A material quantitative dosing device includes a frame 10, which includes at least a main frame, a top plate 11, and a partition plate 12;

[0025] A silo 20 is provided above the frame 10 and is supported and mounted on the frame 10 via a weighing sensor 30 ;

[0026] Specifically, such as Figure 4 As shown, the top plate 11 of the frame 10 is provided with a mounting opening 13, and the silo 20 is arranged in the mounting opening 13. The outer wall of the silo 20 is circumferentially distributed with three connecting ears 21, and each connecting ear 21 is fixedly installed on one end of the weighing sensor 30 by a bolt, and the other end of the weighing sensor 30 is fixedly installed on the mounting ring 14, and the mounting ring 14 is fixedly installed on the edge of the mounting opening 13; this embodiment adopts a weighing independent load-bearing design, and the silo 20 is independently supported by three groups of weighing sensors 30, so that the weighing is more stable and the fluctuation of the monitoring data of the weighing sensor 30 is reduced.

[0027] The discharge port at the lower end of the silo 20 is provided with an electric control valve 130, which mainly controls the opening and closing of the discharge port at the lower end of the silo 20 and determines the discharge amount;

[0028] Below the silo 20 are provided a buffer hopper 40, a star feeder 50, a flexible connecting pipe 60 and an auger mechanism 70 which are sequentially connected and installed;

[0029] Specifically, the buffer hopper 40 is disposed below the silo 20 to receive and centrally buffer the material discharged from the silo 20 at one time. Therefore, the capacity of the buffer hopper 40 should be greater than the maximum amount of material discharged each time. In addition, the discharge port at the lower end of the silo 20 extends into the inner cavity of the buffer hopper 40 and maintains a nesting gap. Combined with the aforementioned independent support of the silo 20 by the three sets of weighing sensors 30, the lower end of the silo 20 maintains a nesting gap with the downstream components, allowing the weighing sensors 30 to more accurately measure the real-time weight of the silo 20, thereby reducing weighing errors.

[0030] Specifically, such as Figure 2 As shown, the star feeder 50 is fixedly mounted on the bottom of the top plate 11 of the frame 10 via a suspension platform 80; the star feeder 50 includes a casing 51 that passes through from top to bottom, in which a star-shaped impeller 52 is rotatably mounted, and an axle 53 of the star-shaped impeller 52 extends from one side of the casing 51 and is transmission-connected to a feeding motor 54, which is electrically connected to a control processor unit 100; the control processor unit 100 controls the feeding motor 54 to rotate at a certain frequency and number of revolutions, thereby controlling the discharge amount and discharge rhythm;

[0031] Specifically, such as Figure 3 As shown, the auger mechanism 70 includes a conveying cylinder 71. An auger feed port 72 connected to the flexible connecting tube 60 is provided at the top of one end of the conveying cylinder 71, and an auger discharge port 73 is provided at the bottom of the other end. An auger shaft 74 is rotatably installed in the conveying cylinder 71. An auger motor 75 for driving the auger shaft 74 is installed on the outer side of one end of the conveying cylinder 71. The auger motor 75 is electrically connected to the control processor unit 100. The auger mechanism 70 can be kept normally open and mainly plays a role in transmission and conveying.

[0032] The auger mechanism 70 is fixedly mounted on the partition 12 of the frame 10 via a support platform 90 , and the top of the support platform 90 is inclined;

[0033] This solution also includes a control processor unit 100, and the weighing sensor 30, the electric control valve 130, the star feeder 50 and the auger mechanism 70 are respectively electrically connected to the control processor unit 100; the control processor unit 100 can adopt, for example, a PLC controller, etc., which makes logical judgments and controls each functional component to execute commands through sensor signals and combined with set programs to achieve automatic control.

[0034] Working principle example:

[0035] The three sets of weighing sensors 30 simultaneously monitor the initial weight of the silo 20 and feed back the monitoring signals to the control processor unit 100. The control processor unit 100 can calculate the actual weight of the silo 20 based on the three sets of weighing sensors 30.

[0036] The control processor unit 100 controls the electric control valve 130 to open according to the total amount of material discharged from the silo 20 in a single time set by the user, until the weight monitored by the weighing sensor 30 drops to the threshold weight, that is, the silo 20 completes the quantitative discharge into the buffer hopper 40;

[0037] The control processor unit 100 can feed the material in batches according to the feeding frequency required by the auger mechanism 70 and by controlling the star feeder 50. By controlling the feeding motor 54 to rotate at a certain frequency and number of turns, the control processor unit 100 can control the discharge amount and discharge rhythm, avoid blockage, and realize quantitative feeding on demand.

[0038] Although embodiments of the utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A material quantitative dosing device, characterized in that: The invention comprises a frame (10), a silo (20) is provided above the frame (10), the silo (20) is supported and mounted on the frame (10) via a weighing sensor (30), an electric control valve (130) is provided at the outlet at the lower end of the silo (20), and a buffer hopper (40), a star-shaped feeder (50), a flexible connecting pipe (60) and an auger mechanism (70) are provided below the silo (20) and are connected and mounted in sequence; and further comprises a control processor unit (100), the weighing sensor (30), the electric control valve (130), the star-shaped feeder (50) and the auger mechanism (70) are electrically connected to the control processor unit (100) respectively; The top plate (11) of the frame (10) is provided with a mounting opening (13), the silo (20) is arranged in the mounting opening (13), and the outer wall of the silo (20) is provided with three connecting ears (21) distributed circumferentially, each connecting ear (21) is fixedly mounted on one end of a weighing sensor (30) by a bolt, and the other end of the weighing sensor (30) is fixedly mounted on a mounting ring (14), and the mounting ring (14) is fixedly mounted on the edge of the mounting opening (13); The discharge port at the lower end of the silo (20) extends into the inner cavity of the buffer hopper (40) and maintains a nesting gap; The star-shaped feeder (50) is fixedly mounted on the bottom of the top plate (11) of the frame (10) via a suspension platform (80).

2. A material quantitative dosing device according to claim 1, characterized in that: The star-shaped feeder (50) includes a casing (51) that passes through from top to bottom. A star-shaped impeller (52) is rotatably installed in the casing (51). The wheel shaft (53) of the star-shaped impeller (52) extends from one side of the casing (51) and is transmission-connected to a feeding motor (54). The feeding motor (54) is electrically connected to the control processor unit (100).

3. A material quantitative dosing device according to claim 1, characterized in that: The auger mechanism (70) includes a conveying cylinder (71), wherein the top of one end of the conveying cylinder (71) is provided with an auger feed port (72) connected to the soft connecting tube (60), and the bottom of the other end is provided with an auger discharge port (73), an auger shaft (74) is rotatably installed in the conveying cylinder (71), and an auger motor (75) for driving the auger shaft (74) is installed on the outside of one end of the conveying cylinder (71), and the auger motor (75) is electrically connected to the control processor unit (100).

4. A material quantitative dosing device according to claim 1, characterized in that: The auger mechanism (70) is fixedly mounted on the partition (12) of the frame (10) via a support platform (90), and the top of the support platform (90) is arranged in an inclined manner.

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