Quantitative feeding device for powder material stirring

Abstract

The utility model belongs to the technical field of feeding equipment, disclose a kind of quantitative feeding equipment for powder material stirring, including rack, the rack upper end is fixedly installed with spiral material machine, driving assembly is installed on the spiral material machine, the upper end of the spiral material machine is fixedly installed with the butt joint cylinder of intercommunication, the butt joint cylinder upper end is fixedly installed with the storage hopper of intercommunication, anti-blocking assembly is installed in the butt joint cylinder, the driving assembly is connected between transmission component and anti-blocking assembly, by the cooperation of driving motor and metering encoder, the real-time monitoring and accurate control of the conveying capacity of spiral material machine are realized, avoid the error problem of traditional volumetric measurement, ensure that quantitative accuracy meets the high requirement of food additive production.

Description

Technical Field

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

[0002] In the production of food additives, the quantitative feeding and mixing of powdered materials are core technological steps. Traditional powdered material feeding equipment typically uses gravity or volumetric metering methods, which suffer from problems such as the quantitative accuracy depending on the material's flowability and susceptibility to agglomeration.

[0003] Chinese Utility Model Application No. 202223552739.2, entitled "A Powder Mixing Device," includes a frame, an inlet mounted on the frame, an additive inlet on the side wall of the inlet, and a mixer at the outlet of the inlet. The mixer includes a housing next to the frame and a mixing drum inside the housing connected to the outlet of the inlet. The side wall of the housing is also equipped with a metering pump for pumping adhesive into the mixing drum. When mixing magnesium oxide powder, additives, and adhesives, this utility model allows each material to be added sequentially into the mixing drum from a set inlet according to its own set procedure. This not only allows for accurate control of the proportions between the materials but also ensures more thorough mixing and improves the uniformity of the mixture. It avoids the problems of incorrect proportions and incomplete powder mixing that can easily occur when materials are mixed from the same inlet.

[0004] However, the aforementioned patents all involve adding materials through existing storage hoppers. The powder materials in these hoppers are prone to clumping due to moisture absorption or prolonged stagnation, leading to poor feeding or even blockages, affecting production continuity. While some equipment incorporates a stirring structure, the independently driven stirring motor increases energy consumption and equipment cost. Furthermore, the lack of coordination between the stirring and conveying components hinders precise quantitative control. In addition, traditional equipment often uses fixed screen structures, lacking active anti-clogging designs. Particulate impurities or clumps in the material easily remain on the screen surface, requiring frequent shutdowns for cleaning and reducing production efficiency. Simultaneously, food additive production demands extremely high hygiene standards for equipment, but existing equipment's material selection and structural design are insufficient in terms of anti-sticking and corrosion resistance, making cleaning and maintenance difficult. Therefore, there is an urgent need for a quantitative feeding device for powder materials that can effectively solve problems such as material clumping, conveying blockages, and low quantitative accuracy, while meeting food-grade hygiene requirements. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a quantitative feeding device for mixing powder materials.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A quantitative feeding device for mixing powder materials includes a frame, a spiral feeder fixedly installed on the upper end of the frame, a drive assembly installed on the spiral feeder, a connected docking cylinder fixedly installed on the upper end of the spiral feeder, a connected storage hopper fixedly installed on the upper end of the docking cylinder, an anti-caking assembly installed inside the docking cylinder, and the drive assembly connected to the anti-caking assembly via a transmission assembly.

[0007] Furthermore, the spiral feeder includes a feeding channel, with an inlet on the upper side of the feeding channel near the docking cylinder and an outlet on the lower side of the feeding channel away from the docking cylinder.

[0008] Furthermore, the drive assembly includes a drive motor fixedly installed at the outer end of the feeding channel. The output end of the drive motor is fixedly installed with a rotating shaft one via a coupling, and the rotating shaft one is located inside the feeding channel. An auger is fixedly installed at the outer end of the rotating shaft one. The drive motor drives the rotating shaft one to rotate, and then the auger is used to realize the spiral feeding of powder materials.

[0009] Furthermore, a bearing housing is fixedly installed at the end of the feeding channel away from the drive motor, and a rotating shaft is rotatably installed inside the bearing housing. A metering encoder is installed on the drive motor. By setting the metering encoder, the amount of material conveyed by the screw conveyor can be monitored in real time, thereby achieving precise control of quantitative feeding.

[0010] Furthermore, the transmission assembly includes a pulley one fixedly mounted on a rotating shaft one, a pulley two rotatably mounted on the outer end of the anti-caking assembly, and a synchronous belt installed between the pulley one and the pulley two. Through the transmission action of the synchronous belt, the pulley two can rotate synchronously with the pulley one.

[0011] Furthermore, the anti-caking component includes a rotating shaft two fixedly installed at the inner end of the pulley two, a bearing seat two fixedly installed at the end of the docking cylinder away from the pulley two, the rotating shaft two being rotatably installed at the inner end of the bearing seat two, and a plurality of annularly arrayed stirring blades fixedly installed at the outer end of the rotating shaft two. The rotating shaft two is driven to rotate by the pulley two, thereby driving the stirring blades to disperse the material, which can prevent the powder material in the storage hopper from clumping and ensure the smooth conveying of the material.

[0012] Furthermore, a screen is fixedly installed at the connection between the docking cylinder and the storage hopper to prevent large particles or clumps of material from entering and causing blockages.

[0013] Furthermore, a vibrating plate is fixedly installed at the outer end of the screen, and a vibrating motor is fixedly installed at the upper end of the vibrating plate. Through the vibration action of the vibrating motor and the transmission of the vibration through the vibrating plate, the accumulation of material at the bottom of the storage hopper can be effectively avoided, ensuring the smooth discharge of material.

[0014] (1) This solution achieves real-time monitoring and precise control of the conveying volume of the screw conveyor by the cooperation of the drive motor and the metering encoder, avoiding the error problem of traditional volumetric metering and ensuring that the quantitative accuracy meets the high requirements of food additive production.

[0015] (2) The anti-caking component shares power with the drive component through the transmission component. The stirring blades in the docking cylinder continuously break up the caking during the material feeding process, without the need for an independent motor drive, which reduces the energy consumption and manufacturing cost of the equipment.

[0016] (3) By utilizing the dispersing effect of the stirring blades in the docking cylinder during the material feeding process, combined with the vibration screening effect of the screen and the vibrating plate, a multi-level anti-clogging mechanism of "dispersing-screening-vibration" is formed, which effectively solves the problem of material accumulation and clumping at the bottom of the storage hopper, ensures the continuity of the feeding process, reduces the frequency of manual cleaning, and improves production efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the structure of the drive assembly and transmission assembly of this utility model; Figure 4 This is a schematic diagram of the anti-caking component of this utility model; Figure 5 This is a schematic diagram of the structure of the screen part of this utility model.

[0019] The labels in the diagram represent: 1. Frame; 2. Screw conveyor; 201. Feeding channel; 202. Feed inlet; 203. Discharge outlet; 3. Connecting cylinder; 4. Storage hopper; 5. Drive assembly; 501. Drive motor; 502. Shaft 1; 503. Screw conveyor; 504. Metering encoder; 505. Bearing housing 1; 6. Transmission assembly; 601. Pulley 1; 602. Pulley 2; 603. Synchronous belt; 7. Anti-caking assembly; 701. Shaft 2; 702. Bearing housing 2; 703. Mixing blades; 8. Screen; 9. Vibrating plate; 10. Vibrating motor. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] The present invention will be further described below with reference to the embodiments.

[0022] In some embodiments, please refer to the appendix to the instruction manual. Figure 1-5 This utility model provides a quantitative feeding device for mixing powder materials, including a frame 1. The frame 1 is made of Q235 carbon steel and has been powder-coated, which has the characteristics of high strength and corrosion resistance. Adjustable feet are provided at the bottom to facilitate leveling during equipment installation. A spiral feeder 2 is fixedly installed on the upper end of the frame 1. The spiral feeder 2 includes a feeding channel 201, which is made of 304 stainless steel with a smooth inner wall that meets food-grade hygiene standards. A feed inlet 202 is provided on the upper side near the docking cylinder 3, and a discharge outlet 203 is provided on the lower side away from the docking cylinder 3 for conveying powder materials.

[0023] The screw conveyor 2 is equipped with a drive assembly 5, which includes a drive motor 501 fixedly mounted at the outer end of the feeding channel 201. This drive motor 501 is an explosion-proof three-phase asynchronous motor, suitable for dusty environments in food additive production workshops. Its output end is fixedly mounted with a rotating shaft 502 via a coupling, and the rotating shaft 502 is located inside the feeding channel 201. An auger 503 is fixedly mounted at its outer end. The auger 503 is made of high-strength stainless steel with a Teflon anti-stick coating to reduce material adhesion and ensure conveying efficiency. A bearing housing 505 is fixedly mounted at the end of the feeding channel 201 away from the drive motor 501. The rotating shaft 502 is rotatably mounted inside the bearing housing 505 via a deep groove ball bearing to ensure rotational stability. A metering encoder 504 is mounted on the drive motor 501. This metering encoder 504 is a high-precision photoelectric encoder that can collect the rotational speed signal of the rotating shaft 502 in real time, providing data support for quantitative control.

[0024] The upper end of the spiral feeder 2 is fixedly equipped with a connecting cylinder 3, which is a cylindrical stainless steel cylinder. The upper end of the connecting cylinder 3 is fixedly connected to the storage hopper 4, which has a conical bottom cylindrical structure for easy material discharge. An anti-caking component 7 is installed inside the connecting cylinder 3. The anti-caking component 7 includes a rotating shaft 701 fixedly installed inside the pulley 602. A bearing seat 702 is fixedly installed at the end of the connecting cylinder 3 away from the pulley 602. The rotating shaft 701 is rotatably mounted inside the bearing seat 702 via a self-aligning bearing. Multiple ring-shaped agitator blades 703 are fixedly installed at the outer end. The agitator blades 703 are made of arc-shaped stainless steel plates with rounded edges, effectively breaking up clumps of material and preventing scratches on the cylinder.

[0025] The drive assembly 5 is connected to the anti-caking assembly 7 via the transmission assembly 6. The transmission assembly 6 includes a pulley 601 fixedly mounted on the rotating shaft 502, a second pulley 602 rotatably mounted on the outer end of the anti-caking assembly 7, and a synchronous belt 603 between the two. The synchronous belt 603 is made of polyurethane with an inner glass fiber tensile layer, which has the advantages of smooth transmission and no need for lubrication, realizing the synchronous transmission of power from the drive motor 501.

[0026] A screen 8 is fixedly installed at the connection between the connecting cylinder 3 and the storage hopper 4. The screen 8 is made of 304 stainless steel woven mesh, and the mesh diameter is customized according to the particle size of the material, which can intercept large particles or clumps in the material. A vibrating plate 9 is fixedly installed at the outer end of the screen 8. The vibrating plate 9 is made of elastic stainless steel plate, and a vibrating motor 10 is fixedly installed at the upper end. The vibrating motor 10 is a low-noise micro vibrating motor, which can provide high-frequency small-amplitude vibration to prevent material from being retained on the screen surface.

[0027] Working principle: When the equipment is running, the powdered material is first poured into the storage hopper 4. The material falls through the cone bottom of the storage hopper 4 into the docking cylinder 3 and comes into contact with the screen 8. At this time, the vibrating motor 10 starts, driving the vibrating plate 9 to vibrate at high frequency, so that the screen 8 vibrates synchronously, ensuring that the material passes through the screen 8 evenly, and large particles or clumps are intercepted to avoid clogging the subsequent channels.

[0028] After the drive motor 501 starts, its output shaft drives the rotating shaft 502 to rotate via the coupling, which in turn drives the auger 503 to rotate in the feeding channel 201 of the screw conveyor 2. This draws material passing through the screen 8 from the inlet 202, conveys it along the feeding channel 201 to the outlet 203, and finally it falls into the downstream mixing device (not shown in the diagram). During this process, the pulley 601 on the rotating shaft 502 drives the pulley 602 to rotate via the synchronous belt 603, causing the rotating shaft 701 of the anti-caking component 7 and the mixing blades 703 to rotate synchronously. The mixing blades 703 rotate at high speed inside the docking cylinder 3, continuously breaking up the material above the screen 8 to prevent the material at the bottom of the storage hopper 4 from caking due to accumulation, ensuring smooth material discharge.

[0029] The metering encoder 504 monitors the rotational speed of the rotating shaft 502 in real time and transmits the signal to the control system. Based on a preset quantitative value, the control system adjusts the rotational speed of the drive motor 501 to precisely control the conveying volume of the auger 503, achieving quantitative feeding of powder materials. When the set material quantity is reached, the drive motor 501 automatically stops, completing one feeding cycle.

[0030] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A quantitative feeding device for mixing powdered materials, comprising a frame (1), characterized in that: The upper end of the frame (1) is fixedly installed with a spiral material feeder (2), the spiral material feeder (2) is installed with a drive assembly (5), the upper end of the spiral material feeder (2) is fixedly installed with a connected docking cylinder (3), the upper end of the docking cylinder (3) is fixedly installed with a connected storage hopper (4), the docking cylinder (3) is installed with an anti-caking assembly (7), and the drive assembly (5) is connected to the anti-caking assembly (7) through a transmission assembly (6).

2. The quantitative feeding device for mixing powdered materials according to claim 1, characterized in that: The spiral material feeder (2) includes a feeding channel (201), with a feed inlet (202) on the upper side of the feeding channel (201) near the docking cylinder (3) and a discharge outlet (203) on the lower side of the feeding channel (201) away from the docking cylinder (3).

3. The quantitative feeding device for mixing powdered materials according to claim 2, characterized in that: The drive assembly (5) includes a drive motor (501) fixedly installed at the outer end of the feeding channel (201). The output end of the drive motor (501) is fixedly installed with a rotating shaft (502) via a coupling. The rotating shaft (502) is located inside the feeding channel (201). An auger (503) is fixedly installed at the outer end of the rotating shaft (502).

4. The quantitative feeding device for mixing powdered materials according to claim 3, characterized in that: The feeding channel (201) is fixedly installed with a bearing seat (505) at the end away from the drive motor (501), and the rotating shaft (502) is rotatably installed inside the bearing seat (505). A metering encoder (504) is installed on the drive motor (501).

5. The quantitative feeding device for mixing powdered materials according to claim 4, characterized in that: The transmission assembly (6) includes a pulley (601) fixedly mounted on a rotating shaft (502), a pulley (602) rotatably mounted on the outer end of the anti-caking assembly (7), and a synchronous belt (603) installed between the pulley (601) and the pulley (602).

6. The quantitative feeding device for mixing powdered materials according to claim 5, characterized in that: The anti-caking component (7) includes a rotating shaft (701) fixedly installed at the inner end of the pulley (602), a bearing seat (702) fixedly installed at the end of the docking cylinder (3) away from the pulley (602), the rotating shaft (701) is rotatably installed at the inner end of the bearing seat (702), and a plurality of annular arrayed stirring blades (703) are fixedly installed at the outer end of the rotating shaft (701).

7. The quantitative feeding device for mixing powdered materials according to claim 6, characterized in that: A screen (8) is fixedly installed at the connection between the docking cylinder (3) and the storage hopper (4).

8. The quantitative feeding device for mixing powdered materials according to claim 7, characterized in that: A vibrating plate (9) is fixedly installed at the outer end of the screen (8), and a vibrating motor (10) is fixedly installed at the upper end of the vibrating plate (9).

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