A mixing device for pregnant sow feed processing

Abstract

The utility model discloses a kind of for pregnant sow feed processing's mixing device, belong to feed processing equipment technical field, including the supporting foot for supporting pregnant sow feed, the top of the supporting foot is equipped with the dispersion tank for preventing pregnant sow feed leakage, the top of the dispersion tank is connected with two feed manifolds for pregnant sow feed flow, the top of the dispersion tank is fixedly installed with the protective tube for supporting, the top of the protective tube is fixedly installed with the mixing barrel for pregnant sow feed mixing, stirring column is rotatably installed in the inside of the mixing barrel, the periphery of the stirring column is equipped with multiple mixing frame, the device effectively enhances mixing uniformity, solve the problem of uneven feed nutrition caused by weak mixing capacity, can avoid sow nutrition intake imbalance after grazing affecting fetal development, reduce digestive problems, improve feed utilization.

Description

Technical Field

[0001] This utility model belongs to the technical field of feed processing equipment, and in particular a mixing device for processing feed for pregnant sows. Background Technology

[0002] The nutritional intake of pregnant sows directly affects fetal development and their own health. Their feed needs to contain a variety of ingredients, including pellets, powders, vitamin additives, and mineral additives, and all ingredients must be mixed evenly to avoid localized nutrient concentrations that are too high or too low. If the mixing capacity of the feed mixing device for pregnant sows is weak, it will lead to uneven nutrition in the feed, resulting in an imbalance in nutrient intake after the sow eats, which will affect fetal development, easily cause digestive problems in sows, reduce feed utilization, and damage breeding efficiency.

[0003] A search of Chinese patent documents (authorization announcement number CN216826013U) reveals that this utility model belongs to the field of pig feed technology, specifically a mixing device for processing feed for pregnant sows. A third transmission track can drive two transmission columns to rotate. When the transmission columns rotate, the gears on their surfaces drive the gears to rotate. The gears, in turn, drive a second eccentric disc to rotate via a second transmission track. As the second eccentric disc rotates, it intermittently contacts a driving block, causing the driving block to move upwards and then downwards, ultimately moving a sieve plate up and down. This facilitates the screening of raw materials, removing large particles and impurities for subsequent mixing. While this device meets basic usage requirements, its weak mixing capacity can lead to uneven nutrient distribution in the feed, causing nutritional imbalances in sows after consumption, affecting fetal development, and potentially causing digestive problems in sows, reducing feed utilization, and ultimately harming farming efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a mixing device for processing feed for pregnant sows, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a mixing device for processing feed for pregnant sows, comprising legs for supporting the feed for pregnant sows, a dispersion box for preventing the feed for pregnant sows from leaking out is installed on the top of the legs, and the top of the dispersion box is connected to two feed manifolds for the flow of feed for pregnant sows. The top of the dispersion box is fixedly installed with a protective tube for support, and the top of the protective tube is fixedly installed with a mixing bucket for mixing feed for pregnant sows. A stirring column is rotatably installed inside the mixing bucket, and multiple mixing racks are installed on the outer periphery of the stirring column. The multiple mixing racks are provided with two circular grooves for limiting displacement inside, and springs for adaptively adjusting the squeezing pressure are connected inside the two circular grooves. The ends of the springs are connected to a movable disc.

[0006] Preferably, the movable disc is slidably disposed inside the circular groove, and a connecting column is connected to the bottom of the movable disc. A semi-circular scraper for pushing feed for pregnant sows is installed at the bottom of the connecting column.

[0007] Preferably, a drive motor for providing power is installed inside the protective tube, and the output shaft of the drive motor is connected to the end of the stirring column via a coupling.

[0008] Preferably, a protective disc is installed on the outer periphery of the stirring column to prevent pig feed from affecting the drive motor, and a conical block is fixedly installed on the inner bottom wall of the mixing tank to prevent pig feed from accumulating. The protective disc is rotatably mounted on the top of the conical block.

[0009] Preferably, the mixing rack has multiple rotating columns rotatably mounted inside, and each of the multiple rotating columns has an eccentric mixing plate for processing feed for pregnant sows mounted on its top.

[0010] Preferably, the inner bottom wall of the mixing tank is provided with two inlets for the mixed pig feed to enter, the end of the feeding manifold is connected to the bottom of the inlet, and the top of the mixing tank is equipped with a protective top cover, and the top of the top cover is provided with a feed hopper for the processing raw materials to enter.

[0011] Preferably, a dispersing plate is installed on the vertical inner wall of the dispersing box, a collecting hopper is installed at the bottom of the dispersing box, and a discharge pipe is installed at the bottom of the collecting hopper.

[0012] Compared with the prior art, the technical effects and advantages of this utility model are as follows: This mixing device for processing feed for pregnant sows benefits from the structure of a rotating column and an eccentric mixing plate. When the mixing column rotates, the mixing frame operates synchronously. The rotating column rotates due to the resistance generated by contact with the feed, causing the eccentric mixing plate at the top to irregularly tumble the raw materials. This effectively breaks down and initially mixes pellets, powders, and additives, significantly enhancing the uniformity of mixing. It solves the problem of uneven feed nutrition caused by weak mixing capacity, preventing nutritional imbalances after sows consume feed that could affect fetal development, reducing digestive problems, and improving feed utilization.

[0013] This mixing device for processing feed for pregnant sows benefits from the combination of a semi-circular scraper and a spring. The spring can adaptively adjust its elasticity according to the thickness of the feed accumulation, driving the moving disc to make the semi-circular scraper fit tightly against the bottom wall of the mixing drum and the inclined surface of the conical block. As the mixing frame rotates, it not only scrapes off the feed adhering to the bottom wall to prevent accumulation and allows it to re-participate in the mixing for deep and even mixing, but also accurately pushes the uniformly mixed feed towards the feed inlet, ensuring smooth feed delivery and improving the synergistic efficiency of mixing and conveying. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the internal structure of the present invention; Figure 4 This utility model Figure 2 Enlarged view of point A in the middle; Figure 5 This utility model Figure 3 Enlarged view of point B in the middle.

[0016] Explanation of reference numerals in the attached figures: In the diagram: 1. Support leg; 101. Dispersion box; 102. Dispersion plate; 103. Collection hopper; 104. Discharge pipe; 105. Feed manifold; 2. Mixing tank; 201. Protective pipe; 202. Drive motor; 203. Stirring column; 204. Conical block; 205. Protective disc; 206. Top cover; 207. Feed hopper; 208. Feed inlet; 3. Mixing frame; 301. Circular groove; 302. Spring; 303. Moving disc; 304. Connecting column; 305. Semi-circular scraper; 306. Rotating column; 307. Eccentric mixing plate. Detailed Implementation

[0017] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0018] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0019] like Figures 1 to 5 The mixing device shown includes a support leg 1 for supporting the feed for pregnant sows, and a dispersion box 101 for preventing the feed from leaking out is installed on the top of the support leg 1. The top of the dispersion box 101 is connected to two feed manifolds 105 for the flow of feed for pregnant sows. A protective tube 201 for support is fixedly installed on the top of the dispersion box 101. A mixing bucket 2 for mixing feed for pregnant sows is fixedly installed on the top of the protective tube 201. An agitator 203 is rotatably installed inside the mixing bucket 2. Multiple mixing racks 3 are installed on the outer periphery of the agitator 203. Two circular grooves 301 for limiting displacement are set inside the multiple mixing racks 3. Springs 302 for adaptive adjustment of extrusion pressure are connected inside the two circular grooves 301. A movable disc 303 is connected to the end of the springs 302.

[0020] The movable disc 303 is slidably disposed inside the circular groove 301. A connecting column 304 is connected to the bottom of the movable disc 303. A semi-circular scraper 305 for pushing the feed for pregnant sows is installed at the bottom of the connecting column 304. A drive motor 202 for providing power is installed inside the protective tube 201. The output shaft of the drive motor 202 is connected to the end of the stirring column 203 through a coupling. As the stirring column 203 continues to rotate, the spring 302 in the circular groove 301 inside the mixing frame 3 adaptively adjusts its elasticity according to the thickness of the feed accumulation, pushing the movable disc 303 to slide downward in the circular groove 301. The movable disc 303 drives the semi-circular scraper 305 to fit tightly against the inner bottom wall of the mixing tank 2 (including the inclined surface of the conical block 204) through the connecting column 304. When the semi-circular scraper 305 rotates with the mixing frame 3, it scrapes off the feed adhering to the inner bottom wall to prevent the feed from accumulating at the bottom and allows the scraped feed to be reintegrated into the mixing system to achieve deep mixing. On the other hand, through continuous rotation and scraping, it pushes the evenly mixed feed along the inclined surface of the conical block 204 to the two feed inlets 208 on the inner bottom wall of the mixing barrel 2, ensuring that the feed is accurately gathered at the feed inlets. The outer periphery of the stirring column 203 is equipped with a protective disc 205 to prevent pig feed from affecting the drive motor 202. The inner bottom wall of the mixing barrel 2 is fixedly equipped with a conical block 204 to prevent pig feed from accumulating. The protective disc 205 is rotatably set on the top of the conical block 204.

[0021] The mixing rack 3 has multiple rotating columns 306 mounted inside, and each of the multiple rotating columns 306 has an eccentric mixing plate 307 for processing feed for pregnant sows mounted on its top.

[0022] The inner bottom wall of the mixing tank 2 is provided with two feed inlets 208 for the mixed pig feed to enter. The end of the feed manifold 105 is connected to the bottom of the feed inlets 208. The top of the mixing tank 2 is equipped with a protective cover 206. The top of the cover 206 is provided with a feed hopper 207 for the raw materials to enter. The operator opens the cover 206 and puts the pellets, powders and additives of the pregnant sow feed into the mixing tank 2 through the feed hopper 207. Then, the drive motor 202 in the protective pipe 201 is started. Its output shaft drives the stirring column 203 to rotate in the mixing tank 2 through the coupling. When the mixing column 203 is running, multiple mixing racks 3 on the outer periphery rotate synchronously. The rotating column 306 inside the mixing rack 3 rotates due to the resistance generated by contact with the feed, which in turn drives the eccentric mixing plate 307 at the top to irregularly tumble the raw materials, initially breaking them up. At the same time, the conical block 204 on the bottom wall of the mixing tank 2 guides the feed to gather towards the bottom center. The protective disc 205 on the outer periphery of the mixing column 203 rotates on the top of the conical block 204, preventing the feed from contacting the drive motor 202, preparing for subsequent scraping of the inner bottom wall.

[0023] A dispersing plate 102 is installed on the vertical inner wall of the dispersing box 101, and a collecting hopper 103 is installed at the bottom of the dispersing box 101. A discharge pipe 104 is installed at the bottom of the collecting hopper 103. The feed pushed to the inlet 208 by the semi-circular scraper 305 flows directly into the feeding manifold 105, which is connected to the bottom of the inlet 208, and is stably transported into the dispersing box 101 through the feeding manifold 105. The dispersing plate 102 on the vertical inner wall of the dispersing box 101 blocks and impacts the falling feed, breaking up any small clumps that may remain, thus achieving secondary dispersion. The dispersed feed falls naturally in the dispersing box 101, collects in the collecting hopper 103 at the bottom, and is finally discharged through the discharge pipe 104 at the bottom of the collecting hopper 103, completing the entire processing process. During this process, the support leg 1 provides stable support for the dispersing box 101 and the mixing tank 2 and protective pipe 201 above it, preventing shaking during operation from affecting the scraping and conveying accuracy.

[0024] To ensure the stable operation of the mixing unit used for processing feed for pregnant sows, targeted measures need to be developed in five aspects: environmental control, maintenance, material selection, component matching, and personnel operation. These measures aim to avoid the impact of various factors on the normal operation of the unit. Specifically, the temperature, humidity, cleanliness, and site stability of the unit's operating environment directly affect the feed processing quality and component lifespan. If the ambient humidity is higher than 65%, the feed is prone to absorbing moisture and clumping, adhering to the inner wall of the mixing tank 2, the surface of the semi-circular scraper 305 and the dispersing plate 102, resulting in incomplete scraping and failure of secondary dispersion. When there is too much dust in the environment, the dust can easily seep into the interior of the protective pipe 201, contaminating the wiring terminals of the drive motor 202 and causing poor contact. At the same time, it can block the feed hopper 207 and the feed inlet 208, hindering the flow of feed. If the ground is uneven, the support legs 1 cannot stably support the dispersing box 101 and the mixing tank 2, and the device will shake during operation, causing the semi-circular scraper 305 to deviate from the inner bottom wall of the mixing tank 2, reducing the scraping accuracy, and may also cause leakage at the connection between the feed manifold 105 and the feed inlet 208. Therefore, the device needs to be installed in a closed workshop with a leveled floor, equipped with temperature and humidity control equipment to keep the humidity between 40% and 60% and the temperature between 15 and 25°C; at the same time, industrial dust removal equipment should be installed to regularly clean the workshop floor and the surface of the device to prevent dust accumulation; the contact between the support leg 1 and the ground should be checked monthly, and if loosening or settling occurs, the height of the support leg should be adjusted in time to ensure the overall stability of the device.

[0025] Wear, aging, or buildup of dirt on various components of the device will directly lead to a decrease in mixing capacity and obstruction of conveying. A regular maintenance checklist needs to be established: the drive motor 202 needs to be inspected every two weeks, the dust inside the protective tube 201 cleaned, the motor bearing grease replenished, and the tightness of the output shaft and coupling checked to prevent the mixing column 203 from jamming due to insufficient lubrication or loose connections; the rotating column 306 and eccentric mixing plate 307 on the mixing frame 3 need to be disassembled and inspected monthly, removing feed residue adhering to the outer circumference of the rotating column 306, and if wear is found on the edge of the eccentric mixing plate 307, it should be replaced promptly to avoid uneven mixing of raw materials due to insufficient turning force; the semi-circular scraper 305 needs to be inspected every two weeks, and the scraper thickness measured. If the thickness decreases by more than 3mm due to long-term scraping, the scraper needs to be replaced. At the same time, check the elasticity of spring 302. If it rebounds slowly or deforms after being pressed, the stainless steel spring needs to be replaced to ensure that the moving disc 303 can drive the scraper to fit tightly against the barrel wall. The dispersing plate 102 and the collecting hopper 103 need to be cleaned once a week. Use a soft brush to remove residual feed on the surface of the dispersing plate 102 and unclog the discharge pipe 104 at the bottom of the collecting hopper 103 to prevent feed from clumping and blocking. In addition, the inner walls of the mixing tank 2 and the dispersing box 101 should be polished every quarter to reduce the probability of feed adhesion and ensure that all components of the device are always in good operating condition.

[0026] The wear resistance and corrosion resistance of component materials, as well as the pretreatment of feed raw materials, are fundamental to the stable operation of the equipment. Components that come into direct contact with feed, such as the mixing tank 2, the semi-circular scraper 305, and the dispersing plate 102, must be made of 304 stainless steel. This material combines wear resistance and corrosion resistance, preventing component wear caused by long-term friction and preventing rust contamination of the feed. The stirring column 203 and the rotating column 306 must be made of high-strength alloy material to enhance their bending resistance and prevent deformation of the column due to excessive feed resistance. The spring 302 must be made of fatigue-resistant stainless steel to ensure that its elasticity does not decrease during long-term adaptive adjustment. Before the feed raw materials are fed in, they must be pretreated by a vibrating screen to remove impurities larger than 5mm (such as stones and straw fragments) and break up any lumps of raw materials to prevent impurities from jamming the rotating column 306 or clogging the feed manifold 105, thus avoiding component jamming or damage caused by raw material issues.

[0027] The fit clearances, sealing performance, and connection status of each component in the device directly affect the mixing and conveying efficiency. Key mating parts need to be checked regularly: the coaxiality of the stirring column 203 and the mixing tank 2 should be measured monthly with a dial indicator. If the deviation exceeds 0.5mm, the installation position of the drive motor 202 needs to be adjusted to ensure smooth rotation of the stirring column and prevent the mixing frame 3 from colliding with the tank wall due to eccentricity; the fit between the moving disc 303 and the circular trough 301 requires weekly cleaning of residual feed in the trough and checking for smooth sliding. If there is any jamming, food-grade grease should be applied to ensure that the spring 302 can push the moving disc to move flexibly; the fit clearance between the protective disc 205 and the conical block 204... The gap needs to be controlled within 1-2mm. If the gap is too large, the protective disc sealing ring needs to be replaced monthly to prevent feed from seeping into the protective pipe 201. The connection between the feed manifold 105 and the feed inlet 208 and the dispersion box 101 needs to be checked weekly for aging of the sealing gasket. If leakage occurs, the silicone sealing gasket should be replaced in time to avoid feed leakage leading to insufficient conveying volume. In addition, all bolted connections (such as the support leg 1 and the dispersion box 101, and the protective pipe 201 and the mixing tank 2) should be tightened every quarter to prevent long-term vibration from causing the connection to loosen and affecting the coordinated operation of the components.

[0028] The professional competence and standardized operation of operators are crucial to preventing equipment malfunctions. Systematic training must be provided to operators, clearly defining operating procedures and prohibitions: When feeding materials, the principle of "small amounts, multiple times" must be followed, with each feeding not exceeding 70% of the mixing tank 2's volume to prevent overloading of the drive motor 202 and to avoid insufficient mixing by the mixing rack 3; before starting the device, check that the top cover 206 is closed, the discharge pipe 104 is unobstructed, and that there are no obstructions in any components. Only start the drive motor 202 after confirming everything is correct; starting with a malfunction is strictly prohibited; during processing, the device's operating status must be monitored in real time. If abnormal noise (such as collision sounds) or material leakage is detected, the machine must be stopped immediately for inspection; forced operation is prohibited; when cleaning the device, the power must be disconnected first, and the mixing column 203 must be completely stopped before opening the top cover 206 to clean the inside of the mixing tank 2 to avoid electric shock or mechanical injury; simultaneously, an "Operating Instruction Manual" should be developed, clearly defining the standard steps for feeding, starting, stopping, and cleaning, and regular operational assessments should be conducted to ensure that operators strictly follow the specifications, eliminating the impact of human error on the device from the source. Through the above-mentioned multi-dimensional control measures, interference from factors such as environment, maintenance, materials, component matching, and personnel operation can be completely avoided, ensuring the continuous and stable operation of the equipment and maintaining good mixing capacity, thus providing a reliable guarantee for the uniform processing of feed for pregnant sows.

[0029] Working principle This mixing device for processing feed for pregnant sows first feeds pellets, powders, and additives into the mixing drum 2 through the feed hopper 207 at the top of the top cover 206. Then, the drive motor 202 inside the protective pipe 201 is started, and its output shaft drives the stirring column 203 to rotate inside the mixing drum 2 via a coupling. When the stirring column 203 rotates, multiple mixing racks 3 on its outer periphery rotate synchronously. The rotating column 306 inside the mixing rack 3 rotates due to resistance generated by contact with the feed, which in turn drives the eccentric mixing plate 307 at the top to irregularly tumble the raw materials to disperse them and prevent initial agglomeration. Simultaneously, the protective disc 205 on the outer periphery of the stirring column 203 rotates at the top of the conical block 204, both preventing the feed from contacting the drive motor 202 and guiding the feed towards the center of the bottom wall inside the mixing drum 2 in conjunction with the conical block 204. As the stirring column 203 continues to rotate, the spring 302 in the circular groove 301 inside the mixing frame 3 adaptively adjusts its elasticity according to the feed resistance, pushing the moving disc 303 to slide in the circular groove 301. The moving disc 303 drives the semi-circular scraper 305 to adhere to the inner wall of the mixing barrel 2 through the connecting column 304. The semi-circular scraper 305 not only scrapes off the feed adhering to the barrel wall to achieve deep mixing, but also pushes the evenly mixed feed to move towards the feed inlet 208 on the bottom wall of the mixing barrel 2. The inclined surface of the conical block 204 ensures that the feed converges at the feed inlet 208. The feed then flows into the feed manifold 105 connected to the feed inlet 208 and is transported to the inside of the dispersion box 101. The dispersion plate 102 on the vertical inner wall of the dispersion box 101 impacts and breaks up the small clumps in the feed. The dispersed feed falls and collects at the bottom of the collection hopper 103, and is finally discharged through the discharge pipe 104 at the bottom of the collection hopper 103. During the process, the support leg 1 provides stable support for the dispersion box 101 and the above mixing tank 2, protective pipe 201 and other structures, preventing the device from shaking and affecting the feed conveying.

[0030] It should be noted that in this article, relational terms such as one and two are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mixing apparatus for processing feed for pregnant sows, comprising legs (1) for supporting the feed for pregnant sows, characterized in that: The top of the support leg (1) is equipped with a dispersion box (101) for preventing the leakage of feed from pregnant sows. The top of the dispersion box (101) is connected to two feed manifolds (105) for the flow of feed to pregnant sows. The top of the dispersion box (101) is fixedly installed with a protective tube (201) for support. The top of the protective tube (201) is fixedly installed with a mixing bucket (2) for mixing feed for pregnant sows. A stirring column (203) is rotatably installed inside the mixing bucket (2). Multiple mixing racks (3) are installed on the outer periphery of the stirring column (203). The multiple mixing racks (3) are provided with two circular grooves (301) for limiting displacement. The interior of each of the two circular grooves (301) is connected with a spring (302) for adaptively adjusting the squeezing pressure. The end of the spring (302) is connected to a moving disc (303).

2. The mixing device for processing feed for pregnant sows according to claim 1, characterized in that: The movable disk (303) is slidably disposed inside the circular groove (301). The bottom of the movable disk (303) is connected to a connecting column (304), and the bottom of the connecting column (304) is equipped with a semi-circular scraper (305) for pushing the feed for pregnant sows.

3. The mixing device for processing feed for pregnant sows according to claim 1, characterized in that: The protective tube (201) is equipped with a drive motor (202) for providing power. The output shaft of the drive motor (202) is connected to the end of the stirring column (203) via a coupling.

4. A mixing device for processing feed for pregnant sows according to claim 3, characterized in that: The outer periphery of the stirring column (203) is equipped with a protective disc (205) to prevent pig feed from affecting the drive motor (202). The inner bottom wall of the mixing tank (2) is fixedly equipped with a conical block (204) to prevent pig feed from accumulating. The protective disc (205) is rotatably set on the top of the conical block (204).

5. A mixing device for processing feed for pregnant sows according to claim 1, characterized in that: The mixing rack (3) is internally equipped with multiple rotating columns (306), and each of the multiple rotating columns (306) is equipped with an eccentric mixing plate (307) for processing feed for pregnant sows.

6. A mixing device for processing feed for pregnant sows according to claim 1, characterized in that: The mixing tank (2) has two feed inlets (208) on its inner bottom wall for the mixed pig feed to enter. The end of the feed manifold (105) is connected to the bottom of the feed inlets (208). The top of the mixing tank (2) is equipped with a protective top cover (206), and the top of the top cover (206) is equipped with a feed hopper (207) for the raw materials to enter.

7. A mixing device for processing feed for pregnant sows according to claim 1, characterized in that: The dispersion box (101) has a dispersion plate (102) installed on its vertical inner wall, a collection hopper (103) installed at the bottom of the dispersion box (101), and a discharge pipe (104) installed at the bottom of the collection hopper (103).

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