Portable uniform feeder
By designing a portable uniform feeder, which uses detachable mixing blades and a spiral feeding auger, combined with a variable frequency motor drive, the shortcomings of portable feeders in terms of feeding accuracy, stability and efficiency are solved, and uniform, stable and efficient material conveying is achieved, making it suitable for various production environments.
Patent Information
- Application Number
- CN202423196413.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Existing portable feeders are inadequate in terms of feeding accuracy, stability, and efficiency, making it difficult to meet the needs of modern production.
A portable uniform feeder was designed, which includes a material storage, crushing and mixing device and a feeding device. It adopts detachable mixing blades and a spiral feeding auger, combined with a variable frequency motor drive, to achieve uniform and stable material conveying. It also meets the portability requirements through lightweight materials and universal wheels.
It achieves uniform, stable, and efficient material conveying, is suitable for various production environments, improves production efficiency, and reduces costs.
Smart Images
Figure CN223619785U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of material conveying equipment technology, and in particular to a portable uniform feeder. Background Technology
[0002] In the material handling process, the efficiency and stability of the feeder have a significant impact on the operation of the entire production line. Traditional feeders, such as screw feeders and vibrating feeders, can meet production needs to a certain extent, but they still have many shortcomings.
[0003] 1. Screw feeders use spiral blades to push materials to the target position, offering advantages such as simple structure and ease of maintenance. However, screw feeders are prone to material blockage and wear during the conveying process, affecting feeding efficiency and stability. Furthermore, screw feeders are typically large in size, making them inconvenient for use in confined spaces or mobile environments.
[0004] 2. A belt feeder is actually a short belt conveyor that can be installed horizontally or at an incline.
[0005] Compared with ordinary belt conveyors, its characteristics are: the support rollers in the load-bearing section are arranged more densely; the unloaded section usually does not have rollers; and the belt has stationary guardrails on both sides.
[0006] It is mainly used for viscous and small-lump materials, and rarely for materials with large lumps. Its advantages are: relatively simple structure, low investment, and reliable operation; low power requirement during stable operation; and easy adjustment of the feeding rate. Automatic control and metering can be achieved. Its disadvantages are: it requires a large space; the conveyor belt is easily worn, therefore it is not suitable for abrasive or high-temperature materials.
[0007] 3. The impeller feeder has a housing that connects to the storage and receiving equipment, with an impeller rotor in the middle. The rotor is driven by a separate electric motor via a sprocket. When the rotor is stationary, the material cannot flow out; when the rotor rotates, the material can be accurately discharged.
[0008] Impeller feeders come in two types: flexible impeller and rigid impeller. Flexible impeller feeders use spring plates fixed to the rotor, resulting in better sealing performance and ensuring more uniform feeding. The impeller can only rotate in one direction and cannot reverse. When the material pressure in the upper storage bin of the feeder is high or the material is prone to arching, affecting uniform feeding, a flexible impeller feeder with stirring pins can be selected. Rigid impeller feeders have blades and rotor cast as a single unit and are generally used in applications where sealing and uniform feeding requirements are not high.
[0009] Impeller feeders are simple in structure, inexpensive, easy to maintain, and feature a sealed design that also acts as an airlock. They are suitable for dry, powdery, and small-particle materials, and are also used for feeding and discharging in air knife conveyor systems. Impeller collectors are commonly used in the discharge of equipment such as cyclone dust collectors and bag filters.
[0010] 4. The disc feeder features a spiral disc with a telescopic sleeve above the feeding port of the storage bin. The height of the disc, which moves between the sleeve and the feed port, can be adjusted via a screw. Material falls from the storage bin onto the disc, accumulating into a conical weir. When the transmission device drives the horizontal disc to rotate via the vertical shaft, the material is scraped off by fixed scrapers and falls into the discharge pipe. A disc shell is installed below the disc, with a raised rim around its perimeter to prevent material from falling off. When material particles fall into the disc shell, the scraper, rotating with the disc, scrapes them into the discharge port to prevent accumulation and blockage. The feed rate can be adjusted by changing the height of the feeding sleeve and the opening of the scraper. When a speed-regulating motor or frequency converter is used, the feed rate can be adjusted by changing the rotation speed.
[0011] A disc feeder is a volumetric metering feeding device. Its advantages include simple structure, reliable operation, convenient adjustment, a wide range of production capacity adjustment, and relatively accurate control of the fed material quantity. Its disadvantages include an inherent error of about 5% due to volumetric metering; additionally, disc feeders have almost no conveying distance for materials, which can sometimes make them unsuitable due to practical layout difficulties. Disc feeders are suitable for feeding various non-sticky materials; however, they are not suitable for highly free-flowing powdery materials because they are prone to cross-contamination.
[0012] 5. The characteristics of a vibrating feeder are small amplitude and high frequency. The material undergoes a certain jumping motion in the trough, thus achieving high production capacity and reducing trough wear. The excitation method of a vibrating feeder is generally electromagnetic vibration. An electromagnetic vibrating feeder consists of four parts: a trough, an electromagnetic vibrator, a vibration damper, and an electrical controller.
[0013] In recent years, with the rapid development of the manufacturing industry, the performance requirements for feeders have become increasingly stringent. Portable feeders, due to their lightweight and portability, have gradually gained market favor. However, existing portable feeders still have shortcomings in terms of feeding accuracy, stability, and efficiency, making it difficult to meet the feeding accuracy requirements of modern production.
[0014] Therefore, this utility model aims to provide a portable uniform feeder that achieves uniform, stable, and efficient material conveying through optimized design and the integration of various structural innovations, while also meeting the requirements of portability. Utility Model Content
[0015] The technical problem to be solved by this utility model is to provide a portable uniform feeder that is suitable for various production environments that require uniform mixing of multiple materials, crushing of lumpy and viscous materials, and stable feeding, thereby effectively improving production efficiency and reducing production costs.
[0016] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0017] A portable uniform feeder includes a material storage, crushing and mixing device and a feeding device;
[0018] The material storage, crushing, and mixing device includes a silo and a crushing and mixing unit.
[0019] The silo is cylindrical, with a feeding port on one side of the bottom and a portable support on the other side of the bottom. A level sensor for monitoring the material storage is installed on the upper part of the inner wall of the silo.
[0020] The crushing and mixing device includes an upper mixing blade and a lower mixing blade installed inside the hopper, and a first variable frequency motor installed outside the hopper; the upper mixing blade and the lower mixing blade are detachably connected to the motor shaft of the first variable frequency motor.
[0021] Both the upper and lower stirring blades include a stirring blade sleeve and several stirring blades evenly arranged on the stirring blade sleeve; the upper stirring blade is trapezoidal, with several pulverizing rods arranged on the upper and lower surfaces respectively; the lower stirring blade is a curved blade.
[0022] The feeding device includes a spiral feeding auger and an adjustment device for adjusting the material conveying angle of the spiral feeding auger.
[0023] A further improvement of this utility model is that: the stirring blade sleeve includes an annular sleeve body and a plurality of mounting seats evenly arranged on the sleeve body; the sleeve body is divided into two symmetrical halves, which are snapped onto the keyway of the motor shaft and then fixedly connected by fixing screws through fixing holes on the edge of each half of the sleeve body; a pair of positioning holes are provided on the sleeve body, and the sleeve body is fixed by screws passing through the positioning holes and the keyway through holes; the number of mounting seats is the same as the number of stirring blade bodies, and the stirring blade bodies are fixedly connected by fixing screws through the mounting holes at the ends and the mounting holes on the mounting seats.
[0024] A further improvement of this utility model is that: the first variable frequency motor is connected to the upper and lower stirring blades via a motor shaft extending from the center of the bottom of the hopper; the first variable frequency motor is connected to a reducer.
[0025] A further improvement of this utility model is that the distance between the edges of the upper and lower stirring blades and the inner wall of the hopper is 5 to 10 cm.
[0026] A further improvement of this utility model is that the spiral feeding auger is connected to the second variable frequency motor.
[0027] A further improvement of this utility model is that: universal wheels are installed at the bottom of the legs of the portable bracket, and the bottom of the portable bracket is provided with anti-slip pads and adjustable feet.
[0028] The technological advancements achieved by this utility model due to the adoption of the above technical solution are as follows:
[0029] 1. This utility model adopts a detachable material storage, crushing and mixing device and an adjustment device, which makes it convenient for users to add materials, replace and repair mechanical parts and adjust feeding parameters; it has a wide range of applications and can be used for mixing and stirring multiple materials, grinding and crushing, and preventing condensation of viscous materials.
[0030] 2. This utility model achieves uniform, stable and efficient material conveying through a spiral feeding auger, meeting the requirements of modern production for feeding accuracy.
[0031] 3. This utility model uses a portable bracket made of lightweight materials. The bracket is equipped with casters at the bottom, which makes it convenient for users to carry, move and install in different environments, thus meeting the needs of portability. Attached Figure Description
[0032] Figure 1 This is a schematic diagram of the portable uniform feeder structure in this utility model;
[0033] Figure 2 This is a schematic diagram of the upper stirring blade structure inside the hopper of the portable uniform feeder in this utility model;
[0034] Figure 3 This is a side view of the upper stirring blades inside the hopper of the portable uniform feeder in this utility model.
[0035] Figure 4 This is a schematic diagram of the lower stirring blade structure inside the hopper of the portable uniform feeder in this utility model;
[0036] The components include: 1. hopper, 2. crushing and mixing device, 3. screw feeder, and 4. portable support frame. Detailed Implementation
[0037] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:
[0038] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0039] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0040] like Figure 1 As shown, a portable uniform feeder includes a material storage, crushing and mixing device 2 and a feeding device;
[0041] The material storage, crushing and mixing device 2 includes a hopper 1 and a crushing and mixing device 2;
[0042] The silo 1 is cylindrical, with a feeding port on one side of the bottom and a portable support 4 on the other side of the bottom; a level sensor for monitoring the material storage is installed on the upper part of the inner wall of the silo 1.
[0043] The crushing and mixing device 2 includes an upper mixing blade and a lower mixing blade disposed inside the hopper 1, and a first variable frequency motor disposed outside the hopper 1; the first variable frequency motor is connected to the upper mixing blade and the lower mixing blade via a motor shaft extending from the center of the bottom of the hopper 1; the first variable frequency motor is connected to a reducer; the distance between the edge of the upper mixing blade and the lower mixing blade and the inner wall of the hopper 1 is 5 to 10 cm.
[0044] Both the upper and lower stirring blades include a stirring blade bushing and a plurality of stirring blades evenly arranged on the stirring blade bushing. The stirring blade bushing includes an annular sleeve and a plurality of mounting seats evenly arranged on the sleeve. The sleeve is divided into two symmetrical halves, which are snapped into the keyway of the motor shaft and then fixedly connected by screws through fixing holes on the edge of each half of the sleeve. A pair of positioning holes are provided on the sleeve, and the sleeve is fixed by screws passing through the positioning holes and the keyway through holes. The number of mounting seats is the same as the number of stirring blades. The stirring blades are fixedly connected by screws through mounting holes at the ends and mounting holes on the mounting seats, so as to realize the detachable installation of the stirring blades.
[0045] like Figure 2 , 3 As shown, the upper stirring blades are trapezoidal, with several stirring rods set on the upper and lower surfaces respectively;
[0046] like Figure 4 As shown, the lower stirring blades are curved blades;
[0047] The upper and lower stirring blades are sequentially mounted on the motor shaft via stirring blade bushings.
[0048] The feeding device includes a spiral feeding auger 3 and an adjusting device. The spiral feeding auger 3 is connected to a second variable frequency motor and is driven by the variable frequency motor to achieve uniform material conveying. The adjusting device can adjust the angle of the feeding auger as needed to meet the feeding requirements of different material conveying angles.
[0049] The portable stand 4 is made of lightweight materials and has casters installed at the bottom of its legs, enabling it to move, fold, and extend, making it convenient for users to move, carry, and install in different environments. The bottom of the portable stand 4 is equipped with anti-slip pads and adjustable feet to ensure the stability of the feeder during operation.
[0050] How to use:
[0051] S1. Installation and Preparation
[0052] S11 places the feeder at the appropriate position where the material needs to be added, adjusts the portable support legs and adjustment device to make the spiral feeder auger 3 feed material at the correct angle; fixes the casters, and ensures that the feeder is placed stably by adding or removing the adjustable feet.
[0053] S12 Open the feeding port at the top of the feeder and add an appropriate amount of material (mixed materials should be added in proportion; large solid materials should be crushed into pieces that can pass through the feeding port; viscous materials should not be added more than two-thirds of the material in hopper 1).
[0054] After adding material S13, close the feeding port and check the sealing of the feeder to ensure that the material does not overflow from the gaps.
[0055] S2, Set feeding amount
[0056] S21 starts the crushing and mixing device 2. Through the computer or mobile terminal, according to the material type, material state, material moisture content, viscosity and other parameters, the power parameters of the variable frequency motor in the crushing and mixing device 2 and the mixing frequency and crushing and mixing time (the crushing time of solid materials needs to be set separately); set the feeding amount and feeding interval of the metering scale at the bottom of the hopper 1.
[0057] After adjusting the S22 parameters, ensure that the surrounding conditions of the feeder are good before starting the mixing operation.
[0058] S3, Start the feeder
[0059] S31 After the mixing time is reached, the metering scale in hopper 1 starts working, controlling the feeding amount each time through its own solenoid valve; the screw feeder auger 3 starts working, adding a fixed amount of material to the reactor vessel.
[0060] The S32 feeder will repeat the process of S31 according to the parameters set in process S21 until the material in hopper 1 is used up or the process is stopped manually.
[0061] S4. Monitoring and Maintenance
[0062] During the operation of the feeder, the remaining material in the feed hopper 1 can be monitored by observing the sight glass of the feeder hopper 1 or by checking the remaining feed on the PC or mobile device through the built-in material sensor of the feed hopper 1. If insufficient material is found or the feeder crushing and mixing device 2 malfunctions, it can be dealt with in a timely manner.
[0063] The S42 feeding control system also has automatic detection and fault diagnosis functions. Once a fault or abnormal situation occurs, it will automatically stop the machine and display the fault code, which will facilitate troubleshooting and maintenance.
[0064] S43 regularly cleans and maintains the feeder; removes residual materials and debris to keep the feeder clean and hygienic; at the same time, checks whether each part of the feeder is intact, and replaces it in time if there is any damage.
[0065] S5, Storage and Transportation
[0066] When not in use, store the S51 feeder in a dry, well-ventilated place, avoiding direct sunlight and humid environments.
[0067] If the S52 needs to be transported long distances with the feeder, please place it in a sturdy box and secure it in place to prevent collisions and damage during transportation.
[0068] This invention is applicable to various production environments that require uniform mixing of multiple materials, crushing of lumpy and viscous materials, and stable feeding, effectively improving production efficiency and reducing production costs.
Claims
1. A portable uniform feeder, characterized in that: Includes a material storage, crushing and mixing device (2) and a feeding device; The material storage crushing and mixing device (2) includes a silo (1) and a crushing and mixing device (2). The silo (1) is cylindrical, with a feeding port on one side of the bottom and a portable bracket (4) on the other side of the bottom. A material level sensor for monitoring the material storage is installed on the upper part of the inner wall of the silo (1). The crushing and mixing device (2) includes an upper mixing blade and a lower mixing blade installed inside the hopper (1) and a first variable frequency motor installed outside the hopper (1); the upper mixing blade and the lower mixing blade are detachably connected to the motor shaft of the first variable frequency motor. Both the upper and lower stirring blades include a stirring blade sleeve and several stirring blades evenly arranged on the stirring blade sleeve; the upper stirring blade is trapezoidal, with several pulverizing rods arranged on the upper and lower surfaces respectively; the lower stirring blade is a curved blade. The feeding device includes a spiral feeding auger (3) and an adjustment device for adjusting the material conveying angle of the spiral feeding auger (3).
2. The portable uniform feeder according to claim 1, characterized in that: The stirring blade bushing includes an annular sleeve and several mounting seats evenly arranged on the sleeve. The sleeve is divided into two symmetrical halves, which are snapped onto the keyway of the motor shaft and then fixedly connected by fixing screws through fixing holes on the edge of each half of the sleeve. A pair of positioning holes are provided on the sleeve, and the sleeve is fixed by screws passing through the positioning holes and the keyway through holes. The number of mounting seats is the same as the number of stirring blades, and the stirring blades are fixedly connected by fixing screws through the mounting holes at the ends and the mounting holes on the mounting seats.
3. The portable uniform feeder according to claim 1, characterized in that: The first variable frequency motor is connected to the upper and lower stirring blades via a motor shaft extending from the center of the bottom of the hopper (1); the first variable frequency motor is connected to the reducer.
4. The portable uniform feeder according to claim 1, characterized in that: The distance between the edges of the upper and lower stirring blades and the inner wall of the hopper (1) is 5 to 10 cm.
5. The portable uniform feeder according to claim 1, characterized in that: The spiral feeding auger (3) is connected to the second variable frequency motor.
6. The portable uniform feeder according to claim 1, characterized in that: The portable bracket (4) has casters installed at the bottom of its legs, and the bottom of the portable bracket (4) is provided with anti-slip pads and adjustable feet.