Mixed production method for animal husbandry feed

Abstract

The present invention provides a mixed production method for animal husbandry, which belongs to feed crushing and mixing technology. The roughage includes hay and straw, the energy feed includes corn, barley, and sorghum, and the protein feed includes soybean meal and peanut meal. The roughage is first flattened and crushed, placed in a rotary crusher, and then further chopped. The corn, barley, and sorghum are mixed together and directly crushed into fine particles using a grinder. The protein feed is crushed into powder by grinding. The energy feed and the protein feed are first pre-mixed together by rotary stirring, and yeast cells are added during the mixing process. The premix is ​​then passed through a transmission chain plate. After the premix is ​​intermittently poured onto the surface of the crushed material in the mixing tower through the transmission chain plate, a stirring shaft axially covered with stirring blades is inserted into the mixing tower for stirring. The feed components of the present invention are scientifically and rationally combined with the crushing and mixing process, ensuring that the nutrients of the feed are stable and consistent.

Description

Technical Field

[0001] The present invention relates to a feed crushing and mixing technology, and more particularly to a feed mixing production method for animal husbandry. Background Art

[0002] In the current livestock farming industry, feed costs account for a significant portion of total production costs, and feed quality directly impacts livestock growth, meat, egg, and milk quality, disease resistance, and other aspects. Traditional feed mixing methods suffer from nutritional imbalances, low digestibility, and excessive use of additives. These issues not only impact animal health, but also place an unnecessary burden on the environment through the blind addition of nutrients.

[0003] Most of the existing livestock feeds are directly made of grass, straw, some common cereal crops and fruits, plus some fungi, which are directly crushed and mixed by mechanical or manual methods to make these materials evenly dispersed. In practice, all materials are directly crushed and the crushed materials are poured into the mixing equipment together. For example, when performing mechanical mixing, a vertical or horizontal TMR mixer is used for mixing to ensure that the raw materials are uniform. This traditional mixed production method is undoubtedly very efficient. However, due to the different types of these materials, the degree of crushing of some materials, such as corn straw, is different from that of some cereal crops. Some materials are almost in powder form after crushing. If they are directly added to crushed materials such as straw, it is difficult to form a stable dispersion uniformity. Even when there is moisture in the straw or grass, the powdered materials will form clumps and lumps before they are mixed with each other. Finally, they are extremely unevenly dispersed and mixed in the crushed feed such as straw. This part of powdered fine-grained feed is often the feed that plays a key role in the growth and development of livestock. It cannot be equated with ordinary grass straw and other feeds that are randomly stirred and mixed. Moreover, this part of feed is also the component that livestock cannot obtain by themselves during daily grazing.

[0004] In addition, all existing feed raw materials are uniformly crushed using the same crushing equipment and then stirred and mixed. In terms of performance, it is difficult for all types of feed to be crushed to a good degree. After all, different feed raw materials only need to be slightly crushed, while a small part must be crushed before they can be better mixed and evenly dispersed in the feed so that livestock can consume the prescribed amount each time they eat. Summary of the Invention

[0005] The problem to be solved by the present invention is to provide a mixed production method for animal husbandry feed in response to the above-mentioned deficiencies in the prior art. The method adopts a reasonable combination of feed types, matched with corresponding material crushing or pulverizing technology, and enters the feed into a mixing tower in batches for mixing. This not only improves the more consistent and uniform dispersion of the core feed components, but also ensures the stability of the ratio of the core nutrients in the feed.

[0006] To achieve the above-mentioned object, the present invention adopts the following technical scheme: a method for producing mixed feed for animal husbandry, comprising further fully crushing each group of feed and then mixing them, wherein the feed includes roughage, energy feed and protein feed, wherein the roughage includes hay and straw, the energy feed includes corn, barley and sorghum, and the protein feed includes soybean meal and peanut meal; when crushing the roughage, the roughage is first squeezed by a press to be flattened and crushed, and then placed in a rotary cutter crusher, further chopped by high-speed rotating blades, and stored in a first preparation bin; when crushing the energy feed, the corn, barley and sorghum are mixed together, directly crushed into fine particles by a crusher, and stored in a second preparation bin; the protein feed is crushed into powder by grinding and then stored in a third preparation bin.

[0007] When mixing materials, the energy feed and protein feed are first pre-mixed together by rotating and stirring, and yeast cells are added during the mixing process to allow the yeast cells to be evenly dispersed in the premix formed by the energy feed and protein feed; the premix is ​​then intermittently conveyed through a transmission chain plate to a vertically installed mixing tower on its left side, and before each premix is ​​fed in, crushed coarse feed is poured into the mixing tower. After the premix is ​​poured onto the surface of the crushed material in the mixing tower, a stirring shaft axially covered with stirring blades is inserted into the mixing tower for stirring, so that the powdered premix is ​​mixed with the crushed material broken into strips.

[0008] Furthermore, the premix is ​​discharged evenly downward through a discharge bin, and the transmission chain plate includes several transmission plates hinged end to end. The transmission plate is a solid plate with a smooth surface. Before the first transmission plate enters the mixing tower, a gate plate in the mixing tower that is linked to the transmission chain plate seals the bottom of the mixing tower, and the moment each transmission plate enters the mixing tower, it will flip downward due to its own weight, so that the premix is ​​transported into the mixing tower once.

[0009] Furthermore, the stirring shaft can move to above the top of the mixing tower and then move downward. The bottom end of the stirring shaft is conical. The spiral blades arranged on the stirring shaft can transport the material in the mixing tower axially downward as the stirring shaft rotates. When the material is transported to the gate plate, due to the obstruction of the gate plate, the material is transported upward through the gap channel between the spiral blades and the inner wall of the mixing tower, thereby realizing a circular flow in the vertical direction, so that the premix is ​​evenly dispersed in the crushed material.

[0010] Furthermore, a chassis is provided on the right side of the mixing tower, and a large gear is provided in the chassis. A driving wheel is coaxially fixed to the large gear. The driving wheel transmits a transmission belt through a pair of driven wheels symmetrically arranged on the left and right. The horizontal section of the transmission belt is located below a horizontally arranged support plate, and the support plate is provided with a notch along the length direction. The support plate is used to support the transmission chain plate for sliding. At the bottom of the rear side plate where the last section of the transmission chain plate is hinged, it is fixed to the transmission belt through a connecting column passing through the notch, so that when the transmission belt moves to the left, the transmission chain plate moves to the left, and all the transmission plates of the transmission chain plate fall into the mixing tower in turn.

[0011] Furthermore, the large gear is engaged with a small gear below it, and the small gear is engaged with a horizontally sliding rack, and the left end of the rack is fixed with the horizontally arranged gate plate; the end teeth at both ends of the rack are horizontally elastically slidably mounted on the main body of the rack.

[0012] Furthermore, a slider is fixed at the bottom end of the end teeth, the slider is slidably mounted on one end of the slide groove on the main body, and is elastically connected to the other end of the slide groove via a pressure spring, and the two pressure springs are located between the two end teeth;

[0013] The starting motor drives the large gear to rotate counterclockwise, the rack moves to the left, the gate plate enters the mixing tower and closes it, and at this time the large gear is driven by the transmission belt to move the transmission plate toward the mixing tower, but has not yet completely entered the mixing tower. When the gate plate is inserted into the mixing tower, the small gear just engages with one of the end teeth, and because of the elastic telescopic mounting structure of the end teeth, the small gear and the end teeth are in an elastic extrusion contact state, and the small gear continues to rotate so as not to affect the rotation of the large gear; when the last section of the transmission plate falls into the mixing tower, the drive motor reverses, the gate plate exits the mixing tower to realize unloading, and when the gear engages with the other end tooth, similarly, the small gear can continue to rotate so that the transmission chain plate leaves the mixing tower and resets.

[0014] Furthermore, after each transmission plate falls into the mixing tower, the large gear and the discharge bin stop working, and a grinding extrusion disk with grinding teeth is pressed into the mixing tower. A sliding block is elastically and telescopically installed on the right side of the grinding disk. The upper surface of the sliding column of the sliding block has a right-angled trapezoidal wedge block, and the inclined surface of the wedge block is used to contact the top wall of the inner sliding cavity in a sliding bar. The top of the wedge block is elastically and telescopically connected to the grinding extrusion disk through a sliding rod. When the sliding block pops out of the side of the grinding extrusion disk and contacts the right side wall of the mixing tower, the sliding bar slides downward under the elastic action, and based on the contact of the wedge block with the inner sliding cavity, the bottom surface of the sliding bar is flush with the bottom surface of the grinding extrusion disk and the sliding block, and the bottom surface of the sliding bar and the bottom surface of the sliding block are both provided with the grinding teeth.

[0015] Furthermore, the sliding block retracts and resets as follows: an electromagnet is provided in the grinding extrusion disk, and the electromagnet is used to attract the sliding bar to move it upward. After the sliding bar moves upward, the sliding block retracts into the grinding extrusion disk under the action of elasticity, and the bottom end of the sliding bar is located on the storage step between the grinding extrusion disk and the sliding block. The electromagnet is immediately energized when the grinding extrusion disk moves upward so that the sliding block retracts into the grinding extrusion disk.

[0016] Furthermore, the sliding post is axially slidably inserted into the socket in the grinding and extrusion disk and is connected to the compression spring in the socket.

[0017] Compared with the prior art, the present invention has the following beneficial effects: the mixed production method for animal husbandry provided by the present invention divides the feed components into three categories, and each category is crushed or pulverized by economical and applicable means to obtain a corresponding reasonable material particle size, and then mixed in batches, that is, a two-stage mixing mechanism, after pre-mixing the energy feed and protein feed, the grass feed, straw and other materials that are not easy to crush are mixed as the basic material, so that the energy feed and protein feed that are easy to crush are first evenly mixed together in the form of fine particles, and then mixed with the roughage as the basic material, to ensure that the two types of functional feed can be uniformly mixed in advance in the corresponding proportion standard, and the formed premix can be directly stirred with the roughage, which is lower in cost. Even when the premix is ​​mixed with the roughage, there will be agglomeration and dispersion. Then, compared with mixing with the crushed material of the roughage itself, the distribution of such agglomerates in the roughage is also in a relatively uniform state. Moreover, the content of functional feed itself is much lower than that of roughage. Therefore, this mechanism of crushing or grinding separately and then mixing will undoubtedly greatly reduce the volume and mixing time of the corresponding equipment. Targeted and strict control can be carried out in the crushing and mixing links of key feed types.

[0018] In addition, in the present method, for the transportation of each component feed, especially the transportation of premix, since the transmission speed of the transmission plate is consistent and the discharge flow rate of the discharge bin is consistent, the amount of premix poured into the mixing tower by each transmission plate entering the mixing tower will automatically be maintained within a relatively stable range. Therefore, the amount of roughage added to the mixing tower each time can also be fixed. Moreover, since all materials are fed intermittently multiple times and stirred each time, the problem of difficulty in mixing uniformly when a large amount of materials is stirred centrally is avoided, and the stirring volume requirement for the equipment is also smaller.

[0019] Other advantages, objectives and features of the present invention will be reflected in part from the following description and will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a specific implementation structure diagram of the present invention;

[0021] Figure 2 is a bottom view of the support plate;

[0022] Figure 3 This is a schematic diagram of an installation structure for a stirring shaft;

[0023] Figure 4 Schematic diagram of a rack structure;

[0024] Figure 5 for Figure 1 Enlarged structural diagram at point A in the middle.

[0025] Among them, the mixing tower 1, the discharge bin 2, the transmission chain plate 3, the transmission plate 301, the rear side plate 302, the large gear 4, the driving wheel 5, the transmission belt 6, the small gear 7, the gate plate 8, the rack 9, the support plate 10, the connecting column 11, the notch 12, the stirring shaft 13, the spiral blade 14, the end tooth 15, the slider 16, the pressure spring 17, the main body 18, the grinding extrusion plate 19, the sliding block 20, the sliding bar 21, the inner sliding cavity 22, the sliding column 23, the compression spring 24, the wedge block 25, the electromagnet 26, the storage step 27, the slide rod 28, and the grinding tooth 29. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and functions of the present invention clearer and easier to understand, the present invention is further described below with reference to the accompanying drawings and specific embodiments:

[0027] like Figure 1As shown, this embodiment specifically introduces a mixed production method for animal husbandry feed. Similar to the prior art, each group of feed needs to be fully crushed before mixing. Specifically, in this embodiment, the feed includes roughage, energy feed and protein feed. The roughage includes hay and straw, the energy feed includes corn, barley and sorghum, and the protein feed requires soybean meal and peanut meal. Based on the types of feed mentioned above, the mixed production process is summarized. That is, when crushing the roughage, the hay, especially the thick plants such as straw, should first be squeezed by a press to be flattened, and then crushed. The specific crushing can be minced into shorter thin strips of broken materials, and then placed in a rotary crusher. It is further chopped by a high-speed rotating blade to shorten the length of its strip structure, and then stored in the first preparation bin for standby use. When grinding the energy feed, corn, barley, and sorghum are mixed together. These granular materials can be directly ground into fine particles using a grinder. To obtain a smaller particle size, they can be ground at least twice before being stored in the second preparation bin. In this embodiment, the protein feed is mainly composed of some block residues after pressing and has a certain brittle texture. Therefore, it can be directly ground into powder and stored in the third preparation bin, which can easily obtain a relatively sufficient powdered solid. When mixing materials, based on the characteristics of the above-mentioned crushed materials, it is recommended to pre-mix the energy feed and protein feed together by rotating stirring. The two types of feed are small and similar in size, so they can be mixed. Yeast cells are added during the mixing process to allow the yeast cells to be evenly dispersed in the premix formed by the energy feed and protein feed. This avoids direct mixing with the crushed materials after the roughage is crushed. The two fine granular feeds are easily agglomerated and mixed in the cracks or special cavities of the crushed materials of the roughage, making it difficult for both feeds to be fully dispersed in the mixture. Especially when encountering moisture, they are easily clumped together, and the dispersion of the two feeds is different.After the above-mentioned premixing operation, the premix can be intermittently conveyed through a transmission chain plate 3 to a vertically installed mixing tower 1 on its left side, and before each feeding of the premix, the mixing tower 1 is poured with a crushed material of coarse feed, that is, the coarser feed crushed material is added at this time. After the premix is ​​poured onto the surface of the crushed material in the mixing tower 1, a stirring shaft 13 axially covered with stirring blades is inserted into the mixing tower 1 for stirring, and the powdered premix and the crushed material broken into short and thin strips are evenly mixed together to form a mixed feed. Moreover, since the two The fine-particle feed, that is, the energy feed and the protein feed have been evenly mixed into one in advance. Even if some powder is mixed into agglomerates in the roughage at this time, it will not affect the dispersion of the two fine feeds. At least the dispersion uniformity of the two feeds in the same area is relatively consistent or relatively stable. Because energy feed and protein feed are different from roughage, they mainly provide the energy and nutrition required by livestock for production and development. These are also the nutrients that are most difficult for livestock to obtain on their own during daily grazing. It can better ensure that the ratio of these two types of special functional feeds in the feed eaten by livestock remains relatively stable.

[0028] In the actual processing of feed, such as Figure 1 The premix is ​​discharged evenly downward through a discharge bin 2, and the transmission chain plate 3 includes several transmission plates 301 hinged end to end. The transmission plate 301 is a solid plate with a smooth surface, which makes it easy for subsequent premixes to quickly fall from the transmission plate 301 in the mixing tower 1. Moreover, during processing, before the first transmission plate 301 enters the mixing tower 1, a gate plate 8 in the mixing tower 1 that is linked to the transmission chain plate 3 will seal the bottom of the mixing tower 1 to catch the falling materials. The falling of the premix is ​​that at the moment when each transmission plate 301 enters the mixing tower 1, it will flip downward due to its own weight and be in a vertical state. Then the premix will fall from its surface, thereby realizing the one-time transportation of the premix into the mixing tower 1.

[0029] Specifically in the actual scene, the stirring shaft 13 of this embodiment can move to the top of the mixing tower 1, and then move downward to enter the set height position of the mixing tower 1 to stir and mix the materials. Specifically, the bottom end of the stirring shaft 13 is conical, which is convenient for inserting into the material, and the spiral blades 14 provided on the stirring shaft 13 can transport the material in the mixing tower 1 axially downward as the stirring shaft 13 rotates. When the material is transported to the gate plate 8, the material is turned back due to the obstruction of the gate plate 8, that is, the material passes through the gate plate 8 again. Figure 3 As shown, the gap channel between the spiral blade 14 and the inner wall of the mixing tower 1 is transported upward, thereby realizing a circulation flow in the vertical direction, so that the premix is ​​evenly dispersed in the crushed material.

[0030] Continue reading Figure 1 A chassis is provided on the right side of the mixing tower 1, in which a large gear 4 is provided. A driving wheel 5 is coaxially fixed to the large gear 4. The driving wheel 5 transmits a transmission belt 6 through a pair of driven wheels arranged symmetrically on the left and right. The transmission belt 6 can be arranged in an inverted triangle shape, and the horizontal section of the transmission belt 6 is located below a horizontally arranged support plate 10, as shown in FIG. Figure 1 and Figure 2 This support plate 10 is provided with a notch 12 along the length direction. The support plate 10 is used to support the transmission chain plate 3 and allow it to slide horizontally. At the bottom of the rear side plate 302 of the hinged transmission plate 301 of the last section of the transmission chain plate 3, it is fixed to the conveyor belt 6 through the connecting column 11 passing through the notch 12, so that when the conveyor belt 6 moves to the left, the transmission chain plate 3 is moved to the left on the support plate 10 through the connecting column 11, and gradually falls into the mixing tower 1, that is, all the transmission plates 301 of the transmission chain plate 3 fall into the mixing tower 1 in turn, and the premix transmitted on each transmission plate 301 is discharged in turn, and the premix is ​​added one by one, and stirred and mixed one by one to improve the dispersion of the material.

[0031] At the same time, in this embodiment, Figure 1 , its large gear 4 is meshed with a small gear 7 below it to achieve speed reduction transmission, so that the gate plate 8 can quickly seal the mixing tower 1, but the transmission chain plate 3 is gradually and steadily transmitted slowly, that is, the small gear 7 is meshed with a horizontally sliding rack 9, and the left end of the rack 9 is fixed with a horizontally set gate plate 8. The end teeth 15 at both ends of the rack 9 are horizontally elastically slidably installed on the main body 18 of the rack 9. When the small gear 7 contacts the corresponding side of the end teeth 15, the gear meshing fails, so that the small gear 7 can rotate, but the rack 9 stops the existing linear movement. Specifically, as Figure 4 A slider 16 is fixed at the bottom end of the end teeth 15. The slider 16 is installed in a sliding fit at one end in the slide groove on the main body 18 and is elastically connected to the other end of the slide groove through a pressure spring 17. The two pressure springs 17 are located between the two end teeth 15. In actual processing operation, the operator needs to start the motor to drive the large gear 4 to rotate counterclockwise, and the rack 9 moves to the left. In a short time, the gate plate 8 enters the mixing tower 1 and closes it. At this time, the large gear 4 is driven by the transmission belt 6 to move the transmission plate 301 toward the mixing tower 1. It has not yet completely entered the mixing tower 1. However, once the gate plate 8 is inserted into the mixing tower 1, the small gear 7 is meshed with one of the end teeth 15, for example, it is meshed with Figure 4The rightmost gear teeth are fully engaged, that is, the small gear 7 maintains continuous contact with the right side of the end tooth 15 at the right end. This is because the elastic telescopic mounting structure of the end tooth 15 makes the small gear 7 and the end tooth 15 in an elastic extrusion contact state, that is, the end tooth 15 is continuously in a position offset to the left, and the transmission fails. Then, the small gear 7 can continue to rotate so as not to affect the rotation of the large gear 4, that is, not to affect the transmission of the premix. When the last section of the transmission plate 301 falls into the mixing tower 1, the premix is ​​quantitatively filled within a relatively stable range within the set stage. After that, the drive motor is reversed, and the gate 8 quickly withdraws from the mixing tower 1, thereby realizing the unloading of the mixture. When the gear is engaged with the other end tooth 15, for example, with Figure 4 When the end teeth 15 on the left side are fully engaged, the gear transmission fails. Similarly, the pinion 7 can continue to rotate, thereby facilitating the transmission chain plate 3 to leave the mixing tower 1 and reset for the next material transmission.

[0032] In more detail, after each transmission plate 301 falls into the mixing tower 1, the large gear 4 and the discharge bin 2 can be stopped to squeeze the upper layer of the ground feed to form a dense structure and a protective layer for easy storage and packaging. Figure 1 and Figure 5 As shown, a grinding extrusion disc 19 with grinding teeth 29 is designed to be pressed into the mixing tower 1. The grinding extrusion disc 19 can rotate and move downward under the drive of its transmission shaft, as shown in FIG. Figure 2A sliding block 20 is elastically and telescopically mounted horizontally on the right side of the grinding disc. A right-angled trapezoidal wedge 25 is formed on the upper surface of the sliding post 23 of the sliding block 20. The inclined surface of the wedge 25 contacts the top wall of an inner sliding cavity 22 within a sliding bar 21, thereby controlling the height of the sliding bar 21. The top of the wedge 25 is elastically and telescopically connected to the grinding extrusion disc 19 via a sliding rod 28. For example, the sliding post 23 is axially slidably inserted into a socket within the grinding extrusion disc 19 and connected to a compression spring 24 within the socket. When the sliding block 20 pops out of the side of the grinding and extrusion disk 19 and contacts the right side wall of the mixing tower 1, the material in the mixing tower 1 is fully squeezed, and the sliding bar 21 slides downward under the action of elasticity, and based on the contact between the wedge block 25 and the inner sliding cavity 22, the bottom surface of the sliding bar 21 is flush with the bottom surface of the grinding and extrusion disk 19 and the sliding block 20, participating in the formation of the bottom end surface of the grinding and extrusion disk 19, and the bottom surface of the sliding bar 21 and the bottom surface of the sliding block 20 are both provided with grinding teeth 29 for surface grinding and crushing. The sliding block 20 in the above embodiment is mainly used to avoid the above-mentioned transmission plate 301 that has been suspended, and when moving downward, it can be squeezed and contacted with the transmission plate 301, thereby scraping off the premix adhered thereto, to avoid the accumulation of too thick premix on the transmission plate 301 after repeated use, which affects the component amount of the mixed material. After moving downward to the area where the transmission plate 301 is suspended, the sliding block 20 will pop out, and then the grinding and extrusion disk 19 will fill the entire mixing tower 1, achieving sufficient extrusion and grinding of the surface material, forming a layer of dense tissue at the end, which is conducive to storage in the packaging box.

[0033] More specifically, if Figure 5 The above-mentioned method of retracting and resetting the sliding block 20 is to provide an electromagnet 26 in the grinding and extrusion disk 19. The electromagnet 26 is used to attract the sliding bar 21 to move it upward. When the sliding bar 21 moves upward, the sliding block 20 quickly retracts into the grinding and extrusion disk 19 under the action of elasticity, and the bottom end of the sliding bar 21 is located on the storage step 27 between the grinding and extrusion disk 19 and the sliding block 20. Since the limiting function of the sliding bar 21 is lost, the sliding block 20 can be retracted into the grinding and extrusion disk 19 under the action of elasticity, which is then conducive to vertical upward movement, passing through the overhanging area of ​​the transmission plate 301 in the mixing tower 1, avoiding being blocked by the transmission plate 301 and unable to move up normally and exit the mixing tower 1. In practice, it is necessary to immediately energize the electromagnet 26 when the grinding and extrusion disk 19 moves upward to attract the sliding bar 21 or the slide bar 28 so that the sliding block 20 can be promptly retracted into the grinding and extrusion disk 19.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the purpose and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A method for producing mixed feed for animal husbandry, comprising crushing and mixing the feeds, wherein: The feed includes roughage, energy feed and protein feed, wherein the roughage includes hay and straw, the energy feed includes corn, barley and sorghum, and the protein feed includes soybean meal and peanut meal; When crushing the roughage, the roughage is first squeezed by a press to be flattened and broken, and then placed in a rotary crusher, where it is further chopped by high-speed rotating blades. When crushing the energy feed, corn, barley and sorghum are mixed together and directly crushed into powder particles by a crusher. The protein feed is crushed into powder by grinding. When mixing materials, the energy feed and the protein feed are first pre-mixed together by means of rotary stirring, and yeast cells are added during the mixing process so that the yeast cells are evenly dispersed in the premix formed by the energy feed and the protein feed; the premix is ​​then intermittently conveyed to a vertically installed mixing tower (1) on the left side thereof through a transmission chain plate (3), and before each feeding of the premix, crushed materials of coarse feed are poured into the mixing tower (1); after the premix is ​​poured onto the surface of the crushed materials in the mixing tower (1), a stirring shaft (13) axially covered with stirring blades is inserted into the mixing tower (1) for stirring, so that the powdered premix is ​​mixed with the crushed materials crushed into strips; The premix is ​​discharged downwardly evenly through a discharge bin (2), and the transmission chain plate (3) includes a plurality of transmission plates (301) hinged at the end, the transmission plate (301) being a solid plate with a smooth surface. Before the first transmission plate (301) enters the mixing tower (1), a gate plate (8) in the mixing tower (1) linked to the transmission chain plate (3) seals the bottom of the mixing tower (1), and at the moment when all the transmission plates (301) enter the mixing tower (1), they will turn downward due to their own weight, so that the premix is ​​transported into the mixing tower (1) once. A chassis is provided on the right side of the mixing tower (1), and a large gear (4) is provided in the chassis. A driving wheel (5) is coaxially fixed to the large gear (4). The driving wheel (5) drives a transmission belt (6) through a pair of driven wheels arranged symmetrically on the left and right. The horizontal section of the transmission belt (6) is located on a horizontally arranged support plate (10). The support plate (10) is provided with a notch (12) along the length direction, and the support plate (10) is used to support the transmission chain plate (3) for sliding. At the bottom of the rear side plate (302) hinged to the last transmission plate (301) of the transmission chain plate (3), the connection column (11) passing through the notch (12) is fixed to the transmission belt (6), so that when the transmission belt (6) moves left, the transmission chain plate (3) moves left with it, and all the transmission plates (301) of the transmission chain plate (3) fall into the mixing tower (1) in sequence; the large gear (4) is engaged with a small gear (7) below it, and the small gear (7) is engaged with a rack (9) arranged for horizontal sliding, and the left end of the rack (9) is fixed with the horizontally arranged gate plate (8); the end teeth (15) at both ends of the rack (9) are horizontally elastically slidably mounted on the main body (18) of the rack (9); A slider (16) is fixed at the bottom end of the end teeth (15), and the slider (16) is installed in a sliding fit at one end of the slide groove on the main body (18), and is elastically connected to the other end of the slide groove through a pressure spring (17), and the two pressure springs (17) are located between the two end teeth (15); the motor is started to drive the large gear (4) to rotate counterclockwise, and the rack (9) moves to the left, and the gate plate (8) enters the mixing tower (1) and closes it. At this time, the large gear (4) is driven by the transmission belt (6) to move the transmission plate (301) toward the mixing tower (1), but has not yet completely entered the mixing tower (1). When the gate plate (8) is in the mixing tower, the transmission plate (301) moves to the mixing tower (1). When the tower (1) is inserted into place, the pinion (7) is exactly engaged with one of the end teeth (15), and due to the elastic telescopic mounting structure of the end teeth (15), the pinion (7) and the end teeth (15) are in an elastic extrusion contact state, and the pinion (7) continues to rotate so as not to affect the rotation of the large gear (4); when the last section of the transmission plate (301) falls into the mixing tower (1), the drive motor is reversed, and the gate plate (8) exits the mixing tower (1) to achieve unloading. When the gear is engaged with the other end tooth (15), similarly, the pinion (7) can continue to rotate so that the transmission chain plate (3) leaves the mixing tower (1) and resets.

2. A method for producing mixed feed for animal husbandry according to claim 1, characterized in that: The stirring shaft (13) can move to the top of the mixing tower (1) and then move downward. The bottom end of the stirring shaft (13) is in a cone shape. The spiral blade (14) provided on the stirring shaft (13) can transport the material in the mixing tower (1) downward in the axial direction as the stirring shaft (13) rotates. When the material is transported to the gate plate (8), due to the obstruction of the gate plate (8), the material is transported upward through the gap channel between the spiral blade (14) and the inner wall of the mixing tower (1), thereby realizing a circular flow in the vertical direction, so that the premix is ​​evenly dispersed in the crushed material.

3. The method for producing mixed feed for animal husbandry according to claim 1, wherein: After each transmission plate (301) falls into the mixing tower (1), the large gear (4) and the discharge bin (2) stop working, and a grinding extrusion disc (19) with grinding teeth (29) is pressed into the mixing tower (1). A sliding block (20) is elastically and telescopically installed on the right side of the grinding disc. The upper surface of the sliding column (23) of the sliding block (20) has a right-angled trapezoidal wedge block (25). The inclined surface of the wedge block (25) is used to contact the top wall of the inner sliding cavity (22) in a sliding bar (21). The top of the wedge block (25) The part is elastically and telescopically connected to the grinding and extrusion disk (19) through a sliding rod (28). When the sliding block (20) pops out of the side of the grinding and extrusion disk (19) and contacts the right side wall of the mixing tower (1), the sliding bar (21) slides downward under the elastic action, and based on the contact between the wedge block (25) and the inner sliding cavity (22), the bottom surface of the sliding bar (21) is flush with the bottom surface of the grinding and extrusion disk (19) and the sliding block (20), and the bottom surface of the sliding bar (21) and the bottom surface of the sliding block (20) are both provided with the grinding teeth (29).

4. A method for producing mixed feed for animal husbandry according to claim 3, characterized in that: The sliding block (20) is retracted and reset in the following manner: An electromagnet (26) is further provided in the grinding extrusion disc (19). The electromagnet (26) is used to attract the sliding bar (21) to move it upward. After the sliding bar (21) moves upward, the sliding block (20) retreats into the grinding extrusion disc (19) under the action of elasticity, and the bottom end of the sliding bar (21) is located on the storage step (27) between the grinding extrusion disc (19) and the sliding block (20). When the grinding extrusion disc (19) moves upward, the electromagnet (26) is immediately energized so that the sliding block (20) retreats into the grinding extrusion disc (19).

5. A method for producing mixed feed for animal husbandry according to claim 4, characterized in that: The sliding column (23) is axially slidably inserted into the insertion hole in the grinding and extrusion disk (19) and is connected to the compression spring (24) in the insertion hole.

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