Spiral spinning vertical feeding device

Abstract

The utility model discloses a spiral spinning vertical feeding device which comprises a hopper, a spiral stirring mechanism and a cover plate. The spiral stirring mechanism is located in the hopper, the top of the hopper is connected with the cover plate, the cover plate is provided with a feeding port and a rotary driving device, the feeding port is communicated with the interior of the hopper, and the rotary driving device is connected with the top of the spiral stirring mechanism. The problem that powder is prone to arching is solved, the material fluidity is improved, additional spinning force is provided for the powder, and the feeding efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of feeders and relates to a spiral spinning vertical feeding device. Background Art

[0002] In modern industrial production, powder conveying and feeding systems play a vital role. Especially in the pharmaceutical, chemical, and food industries, efficient powder feeding not only affects production efficiency but is also directly related to product quality and safety.

[0003] In industries such as chemicals, rubber and plastics, and batteries, production materials generally need to be fed in a certain proportion. Traditional manual feeding is inefficient and causes significant dust pollution. Loss-in-weight feeders can achieve high-precision automated feeding. Existing loss-in-weight feeders can meet the needs of most materials. However, when the powder is light, it will be in a suspended state, making it difficult to feed solely by gravity. To prevent material arching, the arch-breaking stirring device will intensify the material's suspended state and sharply reduce feeding efficiency. At the same time, after long-term use, the material will stick to the inner wall of the hopper, making it difficult to empty the material and increasing the risk of arching, making it difficult to meet actual production needs. These factors limit the application and promotion of loss-in-weight feeders. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the above-mentioned prior art that the powder is relatively light and is in a suspended state under the stirring of the arch-breaking device, making it difficult to feed by its own gravity. A spiral spinning vertical feeding device is provided, which not only solves the problem that the powder is prone to arching and improves the fluidity of the material, but also provides additional spinning pressure to the powder, thereby improving the feeding efficiency.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A spiral spinning vertical feeding device comprises a hopper, a spiral stirring mechanism and a cover plate;

[0007] The spiral stirring mechanism is located inside the hopper, the top of the hopper is connected to the cover plate, the cover plate is provided with a feed port and a rotary drive device, the feed port is communicated with the inside of the hopper, and the rotary drive device is connected to the top of the spiral stirring mechanism.

[0008] Preferably, the hopper and the spiral stirring mechanism are both vertical conical structures.

[0009] Furthermore, the taper of the conical spiral blade is the same as that of the hopper, and the distance from the top to the bottom of the conical spiral blade is the same as the distance from the top to the bottom of the inner wall of the hopper.

[0010] Furthermore, the rotary drive device includes a reducer and a motor, the input end of the reducer is connected to the output end of the motor, and the output end of the reducer vertically extends downward through the cover plate into the hopper and is connected to the spiral stirring mechanism.

[0011] Preferably, the spiral stirring mechanism includes a longitudinal stirring shaft and a conical spiral blade, the longitudinal stirring shaft is located at the axis of the conical spiral blade, and the conical spiral blade and the longitudinal stirring shaft are fixedly connected.

[0012] Furthermore, a plurality of transverse stirring rods are connected between the conical spiral blade and the longitudinal stirring shaft, and the plurality of transverse stirring rods connect different parts of the conical spiral blade to different axial positions of the longitudinal stirring shaft.

[0013] Preferably, a stirring shaft connecting flange is provided at the top end of the longitudinal stirring shaft, and a connecting flange is provided at the output end of the rotary drive device, and the connecting flange is connected to the stirring shaft connecting flange.

[0014] Preferably, an air pressure balancing device is provided on the cover plate, and the air pressure balancing device is connected to the interior of the hopper.

[0015] Preferably, a pneumatic vibrator is provided on the outer wall of the hopper.

[0016] Furthermore, the number of the pneumatic vibrators is at least two.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The utility model makes powder less likely to arch through the stirring action of the spiral stirring mechanism, thereby solving the problem of powder arching in the hopper. At the same time, the spinning effect generated by the conical spiral blades during stirring is utilized to make the powder more compact. In addition, the additional spinning pressure is helpful for feeding, thereby solving the defect that powder is difficult to feed by its own gravity.

[0019] Furthermore, the hopper and the conical spiral blades are both designed to be conical, which increases the material capacity and expands the effective spiral spinning area, thereby improving feeding efficiency.

[0020] Furthermore, the taper of the conical spiral blade is consistent with the taper of the hopper, so that a certain circumferential distance is maintained between the conical spiral blade and the inner wall of the conical hopper, thereby improving the stability of the spiral stirring mechanism movement.

[0021] Furthermore, the longitudinal stirring shaft in the spiral stirring mechanism is fixed by welding the transverse stirring rod and the conical spiral blade, which is easy to process and has low cost.

[0022] Furthermore, the cover plate is connected to the air pressure balance device to prevent excessive positive pressure from forming in the hopper during the unloading process, which would affect the feeding process.

[0023] Furthermore, a pneumatic vibrator is installed on the outer wall of the hopper to prevent the material from being adsorbed on the inner wall of the hopper, thereby improving the fluidity of the material and preventing it from sticking to the wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1This is a front view of the cross section of the spiral spinning vertical feeding device of the present invention;

[0025] Figure 2 This is a schematic diagram of the spiral stirring mechanism of the spiral spinning vertical feeding device of the present invention.

[0026] Among them: 1- hopper; 2- spiral stirring mechanism; 21- longitudinal stirring shaft; 22- transverse stirring rod; 23- conical spiral blade; 24- stirring shaft connecting flange; 3- cover plate; 31- feed port; 4- air pressure balancing device; 5- motor; 6- reducer; 7- pneumatic vibrator. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms "installed", "connected", and "connected" should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or integrally connected; they can be mechanically connected, electrically connected, or able to communicate with each other; they can be directly connected, or indirectly connected through an intermediate medium, or they can be internally connected between two elements or an interactive relationship between two elements. The term "and / or" used herein includes any and all combinations of one or more related listed items. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances. The terms used herein in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model.

[0030] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but a person of ordinary skill in the art will recognize the application of other processes and / or the use of other materials.

[0031] like Figure 1 and 2 As shown, the spiral spinning vertical feeding device described in the present invention includes a hopper 1, a spiral stirring mechanism 2 and a cover plate 3.

[0032] The hopper 1 is a vertically placed conical cylindrical structure with a top diameter larger than the bottom diameter. This design not only helps to concentrate the material, but also reduces the flow resistance of the material. The top and bottom of the hopper 1 are open to facilitate feeding and discharging; the top of the hopper 1 is connected to the cover plate 3, and the cover plate 3 is provided with a feed port 31. The feed port 31 is connected to the inside of the hopper 1 to facilitate the input of powder. At the same time, the cover plate 3 is connected to the reducer 6, and the input end of the reducer 6 is connected to the output end of the motor 5 to ensure the transmission of power and the stability of rotation. The output end of the reducer 6 vertically extends downward through the cover plate 3 into the hopper 1 and is connected to the spiral stirring mechanism 2. The output end of the reducer 6 is rotatably connected or gap-set to the cover plate 3 so that the output end of the reducer 6 will not touch the cover plate 3 during rotation, thereby avoiding affecting the normal rotation of the reducer 6 or causing danger.

[0033] like Figure 1 and 2As shown, the spiral stirring mechanism 2 includes a longitudinal stirring shaft 21, a transverse stirring rod 22 and a conical spiral blade 23. The taper of the conical spiral blade 23 is the same as that of the hopper 1, and the top diameter is also larger than the bottom diameter. The longitudinal stirring shaft 21 is located at the axis of the conical spiral blade 23. Through multiple transverse stirring rods 22, different parts of the conical spiral blade 23 are welded to different axial positions of the longitudinal stirring shaft 21 to achieve a fixed connection between the conical spiral blade 23 and the longitudinal stirring shaft 21, so that the entire mechanism has good structural strength, is easy to process, and has low cost.

[0034] A stirring shaft connecting flange 24 is welded to the top of the longitudinal stirring shaft 21, and a connecting flange is provided at the output end of the reducer 6. The connecting flange is connected to the stirring shaft connecting flange 24, so that the output end of the reducer 6 is connected to the longitudinal stirring shaft 21 as a whole. The spiral stirring mechanism 2 is driven to rotate by the motor 5 and the reducer 6. Under the stirring action of the spiral stirring mechanism, the powder is not easy to arch, which solves the problem of the powder arching in the hopper 1. At the same time, the spinning effect generated by the conical spiral blades 23 during stirring makes the powder more compact. In addition, the additional spinning pressure is helpful for feeding, which solves the defect that the powder is difficult to feed by its own gravity. At the same time, the conical spiral blades 23 can have two forms: left-handed and right-handed.

[0035] The hopper 1 and the conical spiral blades 23 are both designed to be conical, which increases the material capacity and expands the effective spiral spinning area, ensures the uniformity and fluidity of the material during the mixing process, and improves the feeding efficiency.

[0036] like Figure 1 As shown, the cover plate 3 and the feeding mechanism are connected through the feeding port 31. At the same time, an air pressure balancing device 4 is provided on the cover plate 3. The air pressure balancing device 4 is connected to the inside of the hopper 1. During use, the air pressure balancing device 4 ensures that the air pressure inside the hopper 1 is balanced with the outside air pressure, prevents excessive positive pressure from being formed in the hopper 1 during the unloading process, and is helpful for feeding.

[0037] The air pressure balancing device 4 is mainly used to maintain the air pressure balance inside and outside the enclosed space to ensure safety and normal operation. The air pressure balancing device 4 maintains the balance of air pressure inside and outside the enclosed space by adjusting the flow of inlet and outlet gas. It is usually composed of an air inlet, an air outlet, a pressure sensor, a control system and a gas flow regulating mechanism (such as a valve, a piston, etc.). When the air pressure difference inside and outside the enclosed space exceeds the set threshold, the control system will start the gas flow regulating mechanism to adjust the flow of inlet and outlet gas to keep the air pressure balanced. In the utility model, the air pressure balancing device 4 is connected to the inside of the hopper 1 to monitor and adjust the air pressure inside and outside the hopper 1 in real time to prevent material flow obstruction caused by air pressure difference. This design can maintain the balance of air pressure inside and outside the hopper 1 during use, providing good environmental conditions for material discharge.

[0038] like Figure 1 As shown, the taper of the conical spiral blade 23 is consistent with the taper of the hopper 1. An appropriate circumferential distance of 10-15 mm is maintained between the conical spiral blade 23 and the inner wall of the hopper 1. The spacing from the top to the bottom of the conical spiral blade 23 is the same as the spacing from the top to the bottom of the inner wall of the hopper 1. This ensures the stability of the spiral stirring mechanism. However, it will cause poor fluidity of the material near the inner wall of the hopper 1. In order to solve the problem of poor fluidity of the material near the inner wall of the hopper, a pneumatic vibrator 7 is provided on the outer wall of the hopper 1. The number of pneumatic vibrators 7 is not less than 2. This prevents the material from being adsorbed on the inner wall of the hopper, improves the material fluidity, and prevents the material from sticking to the wall.

[0039] The pneumatic vibrator 7, also known as a pneumatic vibrator or a pneumatic linear vibrator, is a vibration device that uses compressed air as a power source. Its working principle is roughly as follows: high-pressure gas discharged from the air compressor is connected to the product air inlet through the air pipe, thereby pushing the piston to perform reciprocating motion up and down. During the movement of the piston, the gas in the air chamber is squeezed and discharged through the exhaust hole. When the piston moves to a certain position, the gas will automatically switch the ventilation direction, causing the piston to continue to move in the opposite direction, thereby continuously reciprocating to produce translation and shaking, thereby generating vibration force. The utility model is provided with a plurality of pneumatic vibrators 7 on the outer wall of the hopper 1. The provision of these pneumatic vibrators 7 not only improves the fluidity of the material and prevents the material from sticking to the wall, but also effectively reduces the material loss caused by friction.

[0040] In the present invention, the hopper 1 is a key component of the entire spiral spinning vertical feeding device, and its structural design directly affects the fluidity and feeding efficiency of the material. The hopper 1 adopts a conical cylindrical design, with the top diameter being larger than the bottom diameter. This structural design helps the effect of gravity, allowing the material to slide down smoothly. Compared with the traditional straight cylindrical hopper, the conical structure avoids the phenomenon of material accumulation or retention on the inner wall of the hopper 1, reducing the risk of blockage. In addition, the conical design increases the material capacity of the hopper 1, allowing it to accommodate more material while occupying a smaller space. This optimized design is particularly suitable for the processing of powders or granules, especially those with poor fluidity and easy to arch.

[0041] In practical applications, the material selection of hopper 1 is crucial. For applications handling corrosive materials, stainless steel or corrosion-resistant alloys can be used to ensure durability in harsh environments. For general production needs, carbon steel or plastic can be used for lower costs. Furthermore, the surface treatment of hopper 1 is crucial. A polished or coated interior can further reduce material adhesion and improve fluidity within hopper 1.

[0042] The spiral stirring mechanism 2 is the core component of the feeding device, and its design influences the efficiency and performance of the entire device. The tapered shape of the conical spiral blades 23 matches the shape of the inner wall of the hopper 1, ensuring that the material is evenly subjected to the spinning action during stirring. Because the diameter of the conical spiral blades 23 gradually decreases from top to bottom, the material is subjected to increasing spinning pressure as it flows from the top to the bottom of the hopper 1 under the action of gravity. This design not only solves the problem of material arching, but also, through the action of the spiral force, makes the powder more dense during the feeding process, thereby improving feeding efficiency.

[0043] Example 2

[0044] The process of feeding using the above-mentioned spiral spinning vertical feeding device is as follows:

[0045] The powder is fed into the hopper 1 through the feed port 31. Under the action of gravity, the powder begins to fall and enters the mixing area.

[0046] When the motor 5 is started, the reducer 6 drives the spiral stirring mechanism 2 to rotate. The spiral stirring mechanism 2 rotates at a speed of not less than 30 rpm. The conical spiral blades 23 produce a spinning effect during the rotation process. This process effectively overcomes the arching phenomenon of the powder, making the powder more compact and enhancing the fluidity of the material.

[0047] Under the stirring action of the spiral stirring mechanism 2, the powder falls smoothly into the downstream conveying system through the combined action of gravity and spinning, completing the feeding.

[0048] Traditional feeding devices often face the problem of powder material arching, resulting in poor material flow. However, the spiral spinning vertical feeding device described in the utility model effectively solves this problem through the design of the spiral stirring mechanism 2, thereby improving the stability of feeding.

[0049] The design of the conical spiral blades 23 enables the spiral spinning vertical feeding device of the present invention to significantly improve the feeding efficiency without increasing power consumption, thereby ensuring the continuity of the production process.

[0050] The spiral spinning vertical feeding device of the present invention is designed with the fluidity of the material in the hopper 1 in mind. Through appropriate gap design and the use of the pneumatic vibrator 7, the material is prevented from adhering to the inner wall of the hopper 1, thereby further improving the fluidity of the material.

[0051] The conical spiral blade 23 can be designed to rotate left or right, providing greater flexibility to adapt to the characteristics of different materials and production requirements, and can match the forward and reverse rotation of the motor.

[0052] The spiral spinning vertical feeding device described in the utility model can be widely used in the following fields:

[0053] 1. Pharmaceutical industry

[0054] In the pharmaceutical industry, accurate feeding of powders is directly related to the quality and efficacy of medicines. The high efficiency and stability of the spiral spinning vertical feeding device of the utility model make it an ideal choice for the pharmaceutical industry.

[0055] 2. Chemical Industry

[0056] The chemical industry has strict requirements on material transportation and feeding, and the spiral spinning vertical feeding device can achieve efficient material processing while ensuring safety.

[0057] 3. Food industry

[0058] The food industry has strict requirements on the hygiene and fluidity of materials. The spiral spinning vertical feeding device of the utility model can effectively avoid the contamination and accumulation of materials through reasonable design, thereby ensuring the safety of food.

[0059] In summary, the spiral spinning vertical feeding device described in this utility model, with its unique design and operating principle, effectively solves problems such as powder arching and poor fluidity. This device not only improves feeding efficiency but also provides reliable technical support for the automation and intelligentization of modern industrial production. With the continuous advancement and development of technology, this device is expected to be applied in more fields in the future, promoting technological innovation and progress in related industries.

[0060] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0061] It should be understood that the above description is for illustration and not for limitation. Many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of this patent should not be determined with reference to the above description, but rather with reference to the preceding claims and the full scope of equivalents to which such claims are entitled. For the purpose of comprehensiveness, all articles and references, including disclosures of patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein from the preceding claims is not a disclaimer of such subject matter, nor should it be considered that the applicant did not consider such subject matter to be part of the disclosed utility model subject matter.

Claims

1. A spiral spinning vertical feeding device, characterized in that: It comprises a hopper (1), a spiral stirring mechanism (2) and a cover plate (3); The spiral stirring mechanism (2) is located inside the hopper (1), the top of the hopper (1) is connected to the cover plate (3), the cover plate (3) is provided with a feed port (31) and a rotary drive device, the feed port (31) is communicated with the inside of the hopper (1), and the rotary drive device is connected to the top of the spiral stirring mechanism (2); The hopper (1) and the spiral stirring mechanism (2) are both vertical conical structures; The conical spiral blade (23) has the same taper as the hopper (1), and the distance from the top to the bottom of the conical spiral blade (23) and the distance from the top to the bottom of the inner wall of the hopper (1) are the same; The rotary drive device includes a reducer (6) and a motor (5), wherein the input end of the reducer (6) is connected to the output end of the motor (5), and the output end of the reducer (6) vertically downwardly passes through the cover plate (3) and extends into the hopper (1), and is connected to the spiral stirring mechanism (2); The spiral stirring mechanism (2) comprises a longitudinal stirring shaft (21) and a conical spiral blade (23), wherein the longitudinal stirring shaft (21) is located at the axis of the conical spiral blade (23), and the conical spiral blade (23) and the longitudinal stirring shaft (21) are fixedly connected; A plurality of transverse stirring rods (22) are connected between the conical spiral blade (23) and the longitudinal stirring shaft (21), and the plurality of transverse stirring rods (22) connect different parts of the conical spiral blade (23) to different axial positions of the longitudinal stirring shaft (21).

2. The spiral spinning vertical feeding device according to claim 1, characterized in that: A stirring shaft connecting flange (24) is provided at the top end of the longitudinal stirring shaft (21), and a connecting flange is provided at the output end of the rotary drive device, and the connecting flange is connected to the stirring shaft connecting flange (24).

3. The spiral spinning vertical feeding device according to claim 1, characterized in that: An air pressure balancing device (4) is provided on the cover plate (3), and the air pressure balancing device (4) is connected to the interior of the hopper (1).

4. The spiral spinning vertical feeding device according to claim 1, characterized in that: A pneumatic vibrator (7) is provided on the outer wall of the hopper (1).

5. The spiral spinning vertical feeding device according to claim 1, characterized in that: The number of the pneumatic vibrators (7) is at least two.

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