A material dosing device

Abstract

The application relates to the technical field of material conveying equipment, and discloses a material quantitative conveying device, which comprises a conveying frame, the inside of the conveying frame is provided with a conveying belt, the outer wall of the conveying frame is provided with a control box, one side of the conveying frame is provided with a lower hopper, the top of the lower hopper is provided with a supporting frame, the top of the supporting frame is fixedly connected with an upper hopper, the top of the supporting frame is provided with a quantitative assembly, the outer wall of the supporting frame is fixedly connected with a limiting rod, and the inner wall of the conveying frame is provided with a correction spring piece. The quantitative material conveying device realizes the equal release of materials through the accurate control of the fixed volume of the quantitative frame and the opening of the limiting rod on the rotating shaft, avoids the quantitative error caused by the poor flowability of materials in traditional devices, the anti-sticking coating on the inner wall of the quantitative frame can effectively prevent the materials from sticking to the wall, the torsional spring reset design of the bottom rotating shaft opening can make the materials fall more completely, and the influence of residual materials on the next conveying is reduced.

Description

Technical Field

[0001] This application relates to the field of material conveying equipment, specifically a material quantitative conveying device. Background Technology

[0002] In industrial production, the quantitative transportation of materials is a key link in ensuring the stability of production processes and the consistency of product quality.

[0003] An existing patent (publication number: CN222989288U) discloses a powder material quantitative conveying device, including a conveyor belt frame assembly and a storage tower for storing materials. The storage tower includes an upper storage bin and a lower discharge port. The conveyor belt frame assembly includes a body and a belt mounted on the body. Side baffles are fixedly connected to both sides of the belt on the body, and quantitative partitions are movably connected at equal intervals along the length of the belt. The upper surface of the quantitative partitions abuts against the discharge port. By rotating a stirring roller inside the discharge port to crush lumpy powder materials, and by utilizing the fixed volume storage space formed by the quantitative partitions and side baffles, the volume of powder materials can be quantitatively processed by the quantitative partitions when they are placed onto the belt. This utility model is equipped with a quantitative baffle and side plate for quantitative conveying. The quantitative structure is directly installed above the conveying structure. The quantitative baffle moves with the conveyor belt. If the conveyor belt slips slightly or fluctuates in speed due to the weight of the material or wear, it will cause the baffle spacing to deviate from the preset volume, thus affecting the quantitative accuracy. The quantitative baffle and side plate structure is mainly for powder materials with good flowability, but it is not suitable for materials that are easy to stick to the wall or sticky, such as flour, starch, and wet granules.

[0004] Currently, most material conveying devices on the market use screw conveyors, loss-in-weight feeders, or belt scales. For materials that easily stick to the wall (such as flour and starch), traditional devices tend to leave material residue on the inner wall, leading to a decrease in quantitative accuracy. When the material falls from the hopper onto the conveyor belt, it is easy for it to accumulate and shift, affecting the material receiving of subsequent processes. At the same time, some devices have complex structures, are inconvenient to adjust, and are difficult to adapt to the conveying needs of different materials. Therefore, there is a need for a quantitative conveying device with a simple structure, high quantitative accuracy, low material residue, and stable conveying. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a material quantitative conveying device that offers advantages such as precise quantitative control of materials, reduced material residue, and stable material conveying on the conveyor belt. It solves the problems of low quantitative accuracy, complex quantitative structure, and easy displacement of the conveying position.

[0006] To achieve the above objectives, this application provides the following technical solution: a material quantitative conveying device, comprising a conveyor frame, a conveyor belt installed inside the conveyor frame, a control box installed on the outer wall of the conveyor frame, a discharge hopper installed on one side of the conveyor frame, a support frame installed on the top of the discharge hopper, a feeding hopper fixedly connected to the top of the support frame, a quantitative component installed on the top of the support frame, a limit rod fixedly connected to the outer wall of the support frame, and a correction spring installed on the inner wall of the conveyor frame.

[0007] With the above scheme, the conveyor frame serves as the overall support frame of the device, used to install and fix components such as the conveyor belt, control box, and hopper. The precise control of the quantitative component enables equal material conveying, the anti-stick coating reduces residue and improves accuracy, the correction spring ensures stable conveying, and the control box optimizes operation and safety.

[0008] Furthermore, the metering component includes a slide rail inside, and the slide rail is fixedly connected to the top of one side of the support frame. A pulley is slidably arranged inside the slide rail, and a metering frame is fixedly connected to the pulley through a wheel frame. A drive cylinder is fixedly connected to the inner side of the support frame, and a connecting rod is fixedly connected to the output end of the drive cylinder.

[0009] The above scheme converts sliding friction into rolling friction by connecting the wheel frame to the metering frame, reducing the moving resistance of the metering frame and ensuring its smooth movement under the driving action. The driving cylinder is fixed inside the support frame as a power source, and its output end is connected to the metering frame through a connecting rod to realize the reciprocating movement of the metering frame between the receiving position and the unloading position.

[0010] Furthermore, the slide rail is located above the feeding hopper, and the cross-sectional dimensions of the metering frame match the feeding outlet of the feeding hopper.

[0011] With the above scheme, the slide rail is located above the hopper, ensuring that when the metering frame moves to the end of the slide rail, it is exactly above the hopper, so that the material can fall accurately into the hopper and avoid material spillage. The material in the feed hopper can fall completely into the metering frame. This prevents the material from overflowing due to the metering frame being too small, and also prevents the metering frame from causing gaps in the receiving area due to the metering frame being too large. The structure ensures the consistency of the receiving amount each time, laying the foundation for metering accuracy.

[0012] Furthermore, the bottom of the quantitative frame is provided with a rotating cover, and the quantitative frame is located above the feeding hopper. The movement of the rotating cover is restricted by the limiting rod. A torsion spring is provided between the rotating cover at the bottom of the quantitative frame and the quantitative frame. One end of the torsion spring is fixedly connected to the rotating cover, and the other end is fixedly connected to the inner wall of the quantitative frame.

[0013] With the above scheme, when the metering frame is below the feeding hopper to receive material, the limiting rod abuts against the rotating shaft cover to keep it closed, preventing premature material leakage. When the metering frame moves above the discharging hopper, the rotating shaft cover disengages from the limiting rod and automatically opens to release the material under the action of the torsion spring. The torsion spring enables the automatic reset of the rotating shaft cover. When the metering frame returns to the receiving position, the rotating shaft cover is again abutted and closed by the limiting rod, eliminating the need for an additional drive mechanism, simplifying the structure while ensuring the reliability of the release and reset actions.

[0014] Furthermore, the length of the limiting rod is equal to half the length of the slide rail, and the length of the connecting rod is equal to the length of the slide rail.

[0015] With the above scheme, when the quantitative frame moves from the receiving position to the midpoint of the slide rail, the rotating shaft opens and begins to break free from the limit rod. When it reaches the top of the hopper, it is fully opened, avoiding the opening action being too early or too late. The connecting rod length is equal to the slide rail length, ensuring that when the piston rod of the drive cylinder is fully extended, the quantitative frame moves exactly to the top of the end of the slide rail. When the piston rod is fully retracted, the quantitative frame returns to the initial receiving position, making the quantitative frame move the same each time and improving the stability of quantitative conveying.

[0016] Furthermore, the feeding hopper is located above the feeding hopper, and the inner wall of the metering frame is coated with a polytetrafluoroethylene anti-stick coating.

[0017] The above solution involves spraying a polytetrafluoroethylene (PTFE) anti-stick coating onto the inner wall of the metering frame. Utilizing the smooth and non-stick properties of PTFE, this prevents powder or sticky materials from adhering to the inner wall of the metering frame, ensuring that the amount of material released each time matches the amount received. This also reduces cleaning difficulty and improves the ease of device maintenance.

[0018] Furthermore, the corrective spring is made of spring steel and is located at the discharge position of the hopper, with the end of the corrective spring away from the conveyor frame bent upward to form an arc-shaped guide.

[0019] With the above scheme, the corrective spring is installed on the inner wall of the conveyor frame, located at the discharge position of the hopper. It is made of spring steel, and the end away from the conveyor frame is bent upward to form an arc-shaped guide part, which is used to correct the material on the conveyor belt. It is connected to the conveyor frame by adjusting bolts, and the distance between the spring and the conveyor belt can be adjusted according to the particle size of the material.

[0020] Furthermore, the surface of the control box is equipped with a touch screen and an emergency stop button. The touch screen can display the real-time delivery volume and equipment operating status, and the emergency stop button is connected in series with the main circuit of the equipment.

[0021] With the above solution, a touch screen is installed on the surface of the control box, allowing operators to view the equipment's operating status and real-time delivery volume in real time, as well as set parameters via the touch screen.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] This material quantitative conveying device achieves equal release of materials by using a fixed volume of the quantitative frame and a limiting rod to precisely control the opening of the rotating shaft cover. This avoids quantitative errors caused by differences in material flowability in traditional devices. The design of the connecting rod and slide rail being of equal length ensures that the quantitative frame moves consistently each time, further improving quantitative stability. The anti-stick coating on the inner wall of the quantitative frame effectively prevents materials from sticking to the wall. Combined with the torsion spring reset design of the bottom rotating shaft cover, the material falls more thoroughly, reducing the impact of residual material on the next conveying. At the same time, a correction spring is used for correction. The arc-shaped guide part of the correction spring can organize the material falling onto the conveyor belt, preventing material accumulation and deviation, and ensuring the smooth operation of subsequent processes. The correction spring made of spring steel combines elasticity and strength, and can adapt to the correction needs of materials of different thicknesses. Attached Figure Description

[0024] Figure 1 This is a diagram illustrating the overall structure of this application;

[0025] Figure 2 This is a front view of this application;

[0026] Figure 3 This is a schematic diagram of the structure of the feeding hopper and the metering component in this application;

[0027] Figure 4 This is a top view of this application;

[0028] Figure 5 This is a schematic diagram of the structure of the quantitative component of this application.

[0029] In the picture:

[0030] 1. Conveyor frame; 2. Conveyor belt; 3. Control box; 4. Feed hopper; 5. Support frame; 6. Feed hopper; 7. Quantitative assembly; 701. Slide rail; 702. Pulley; 703. Quantitative frame; 704. Drive cylinder; 705. Connecting rod; 8. Limiting rod; 9. Correcting spring. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] Please see Figure 1 and Figure 2The material quantitative conveying device in this embodiment includes a conveyor frame 1, a conveyor belt 2 installed inside the conveyor frame 1, a control box 3 installed on the outer wall of the conveyor frame 1, a feeding hopper 4 installed on one side of the conveyor frame 1, a support frame 5 installed on the top of the feeding hopper 4, a feeding hopper 6 fixedly connected to the top of the support frame 5, a quantitative component 7 installed on the top of the support frame 5, a limit rod 8 fixedly connected to the outer wall of the support frame 5, and a corrective spring 9 installed on the inner wall of the conveyor frame 1.

[0033] It should be noted that the conveyor frame 1 is used as the overall support frame of the device, which is used to install and fix components such as the conveyor belt 2, control box 3 and hopper 4. The precise control of the quantitative component 7 realizes the equal delivery of materials, the anti-stick coating reduces residue and improves accuracy, the correction spring 9 ensures stable delivery, and the control box 3 optimizes operation and safety.

[0034] Please refer to Figure 3 The metering component 7 includes a slide rail inside. A slide rail 701 is fixedly connected to the top of one side of the support frame 5. A pulley 702 is slidably arranged inside the slide rail 701. A metering frame 703 is fixedly connected to the pulley 702 through a wheel frame. A drive cylinder 704 is fixedly connected to the inside of the support frame 5. A connecting rod 705 is fixedly connected to the output end of the drive cylinder 704. The slide rail 701 is located above the feeding hopper 4. The cross-sectional dimensions of the metering frame 703 match the feeding outlet of the feeding hopper 6. A rotating shaft is provided at the bottom of the metering frame 703. The lid is opened, and the metering frame 703 is located above the feed hopper 4. The limiting rod 8 restricts the movement of the rotating shaft opening. A torsion spring is provided between the rotating shaft opening at the bottom of the metering frame 703 and the metering frame 703. One end of the torsion spring is fixedly connected to the rotating shaft opening, and the other end is fixedly connected to the inner wall of the metering frame 703. The length of the limiting rod 8 is equal to half the length of the slide rail 701, and the length of the connecting rod 705 is equal to the length of the slide rail 701. The feed hopper 6 is located above the feed hopper 4. The inner wall of the metering frame 703 is coated with a polytetrafluoroethylene anti-stick coating.

[0035] Through the above scheme, the sliding friction is converted into rolling friction by connecting the wheel frame to the metering frame 703, reducing the moving resistance of the metering frame 703 and ensuring its smooth movement under the driving action. The driving cylinder 704 is fixed inside the support frame 5 as a power source, and its output end is connected to the metering frame 703 through the connecting rod 705, realizing the reciprocating movement of the metering frame 703 between the receiving position and the discharging position. The slide rail 701 is located above the discharging hopper 4, ensuring that when the metering frame 703 moves to the end of the slide rail 701, it is exactly above the discharging hopper 4, and the material can accurately fall into the discharging hopper. Within 4, to prevent material spillage, the material in the feeding hopper 6 can fall completely into the metering frame 703. This prevents overflow due to the metering frame being too small, and avoids gaps due to its size, ensuring consistent feeding volume and laying the foundation for metering accuracy. When the metering frame 703 is below the feeding hopper 6, the limiting rod 8 keeps the rotating shaft cover closed, preventing premature leakage. When the metering frame 703 moves above the discharging hopper 4, the rotating shaft cover disengages from the limiting rod 8 and automatically opens to release the material under the action of a torsion spring. The torsion spring enables automatic reset of the rotating shaft cover. When the metering frame 703 returns to the feeding position, the rotating shaft cover is again closed by the limiting rod 8, eliminating the need for an additional drive mechanism, simplifying the structure while ensuring the reliability of the release and reset actions.

[0036] Please refer to Figure 4 and Figure 5 The corrective spring 9 is made of spring steel and is located at the discharge position of the hopper 4. The end of the corrective spring 9 away from the conveyor frame 1 is bent upward to form an arc-shaped guide.

[0037] With the above scheme, the corrective spring 9 is installed on the inner wall of the conveyor frame 1, located at the discharge position of the hopper 4. It is made of spring steel, and the end away from the conveyor frame 1 is bent upward to form an arc-shaped guide part, which is used to correct the material on the conveyor belt 2. It is connected to the conveyor frame 1 by adjusting bolts, and the distance between it and the conveyor belt 2 can be adjusted according to the size of the material particles.

[0038] Furthermore, the surface of control box 3 is equipped with a touch screen and an emergency stop button. The touch screen can display the real-time conveying volume and equipment operating status, and the emergency stop button is connected in series with the main circuit of the equipment.

[0039] With the above solution, a touch screen is installed on the surface of the control box 3. Operators can view the equipment's operating status in real time, such as the frequency of quantitative structure movement, conveying speed, and real-time conveying volume, through the touch screen. At the same time, they can set parameters such as quantitative conveying cycle and conveying speed through the touch screen.

[0040] Through the above scheme, the sliding friction is converted into rolling friction by connecting the wheel frame to the quantitative frame 703, which reduces the moving resistance of the quantitative frame 703 and ensures that it moves smoothly under the driving action. The driving cylinder 704 is fixed inside the support frame 5 as a power source, and its output end is connected to the quantitative frame 703 through the connecting rod 705 to realize the reciprocating movement of the quantitative frame 703 between the receiving position and the unloading position.

[0041] The working principle of the above embodiment is as follows: First, the operator pours the material to be conveyed into the feeding hopper 6. The material flows into the quantitative frame 703 through the discharge outlet of the feeding hopper 6 until the quantitative frame 703 is full. Excess material is blocked by the top edge of the quantitative frame 703.

[0042] Secondly, by starting the device via the touch screen of the control box 3, the piston rod of the drive cylinder 704 extends, and the connecting rod 705 pushes the quantitative frame 703 to move along the slide rail 701 towards the direction of the discharge hopper 4. When the quantitative frame 703 moves directly above the discharge hopper 4, the limit rod 8 no longer restricts the opening of the rotating shaft, the torsion spring resets and drives the rotating shaft to open, and the material in the quantitative frame 703 falls into the discharge hopper 4. After the material has fallen, the piston rod of the drive cylinder 704 retracts, and the quantitative frame 703 returns to below the discharge outlet of the upper hopper 6. At this time, the limit rod 8 restricts the opening of the rotating shaft to close again, and the quantitative frame 703 receives the material falling from the upper hopper 6 again and enters the next conveying cycle.

[0043] Finally, after the material falls from the hopper 4 onto the conveyor belt 2, it moves with the conveyor belt 2 to below the straightening spring 9. The arc-shaped guide part of the straightening spring 9 organizes the material into a uniform layer to prevent the material from shifting.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A material quantitative conveying device, comprising a conveyor frame (1), characterized in that: The conveyor frame (1) is equipped with a conveyor belt (2) inside, a control box (3) is installed on the outer wall of the conveyor frame (1), a feeding hopper (4) is installed on one side of the conveyor frame (1), a support frame (5) is installed on the top of the feeding hopper (4), a feeding hopper (6) is fixedly connected to the top of the support frame (5), a quantitative component (7) is installed on the top of the support frame (5), a limit rod (8) is fixedly connected to the outer wall of the support frame (5), and a correction spring (9) is installed on the inner wall of the conveyor frame (1).

2. The material quantitative conveying device according to claim 1, characterized in that: The quantitative component (7) includes a slide rail (701) inside. The slide rail (701) is fixedly connected to the top of one side of the support frame (5). A pulley (702) is slidably arranged inside the slide rail (701). A quantitative frame (703) is fixedly connected to the pulley (702) through a wheel frame. A drive cylinder (704) is fixedly connected to the inner side of the support frame (5). A connecting rod (705) is fixedly connected to the output end of the drive cylinder (704).

3. The material quantitative conveying device according to claim 2, characterized in that: The slide rail (701) is located above the feed hopper (4), and the cross-sectional dimensions of the quantitative frame (703) match the feed outlet of the feed hopper (6).

4. A material quantitative conveying device according to claim 2, characterized in that: The bottom of the quantitative frame (703) is provided with a rotating shaft cover, and the quantitative frame (703) is located above the feed hopper (4). The limiting rod (8) restricts the movement of the rotating shaft cover. A torsion spring is provided between the rotating shaft cover at the bottom of the quantitative frame (703) and the quantitative frame (703). One end of the torsion spring is fixedly connected to the rotating shaft cover, and the other end is fixedly connected to the inner wall of the quantitative frame (703).

5. A material quantitative conveying device according to claim 2, characterized in that: The length of the limiting rod (8) is equal to half the length of the slide rail (701), and the length of the connecting rod (705) is equal to the length of the slide rail (701).

6. A material quantitative conveying device according to claim 2, characterized in that: The feeding hopper (6) is located above the feeding hopper (4), and the inner wall of the quantitative frame (703) is coated with a polytetrafluoroethylene anti-stick coating.

7. A material quantitative conveying device according to claim 1, characterized in that: The corrective spring (9) is made of spring steel and is located at the discharge position of the hopper (4). The end of the corrective spring (9) away from the conveyor frame (1) is bent upward to form an arc-shaped guide.

8. A material quantitative conveying device according to claim 1, characterized in that: The control box (3) is equipped with a touch screen and an emergency stop button. The touch screen can display the real-time conveying volume and equipment operating status, and the emergency stop button is connected in series with the main circuit of the equipment.

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