Preparation method of dry cat food with high fresh meat content based on superfine grinding and low-temperature baking

Abstract

The invention discloses a high-fresh-meat-content cat food dry food preparation method based on superfine grinding and low-temperature baking, and aims to solve the problem that meat needs to be cooked and then crushed in a high-fresh-meat-content cat food preparation process, and the meat contains water and grease, so that the meat quality is poor. And during crushing, the material particles are not uniform and the granularity is relatively large, so that the nutrient absorption rate of cat food is not favorably improved, the digestion function is improved and the palatability of the particles is optimized. Therefore, the inventor cooks and cooks meat raw materials, squeezes the meat raw materials to remove most of water and grease, dries the meat raw materials to remove the rest of water and grease, and then carries out superfine grinding to obtain superfine ground materials after the meat has certain hardness, so that the particle size of the superfine ground materials can be effectively guaranteed; the preparation method comprises the following steps: preparing cat food granules, mixing the cat food granules with other auxiliary materials and a binder, homogenizing to prepare granules, baking the granules in a low-temperature baking oven at low temperature to obtain the cat food granules, and preparing the cat food with high fresh meat content by optimizing a cat food preparation process.

Description

Technical Field

[0001] The invention belongs to the technical field of cat food preparation, and in particular relates to a method for preparing dry cat food with high fresh meat content based on ultrafine grinding and low-temperature baking. Background Art

[0002] As living standards improve, more and more people are raising pets. To meet the growth and nutritional needs of pets, a variety of cat foods have emerged. Common cat foods often use a combination of meat and vegetables, with ingredients containing animal proteins like beef and chicken, along with some nutritional additives. This leads to high production costs, limited nutritional value, and poor digestion and absorption, which can negatively impact the growth and development of pet cats.

[0003] In order to feed cats more scientifically, cat food that uses ultra-fine grinding technology has appeared on the market to increase nutrient absorption rate, improve digestive function and optimize the palatability of particles.

[0004] After searching, CN109043203A was found, which proposed a yeast protein compound cat food and its preparation method. The yeast protein compound cat food is composed of the following raw materials in parts by mass: 46-52 parts of yeast protein, 10-12 parts of wheat flour, 3-5 parts of houttuynia cordata, 0.5-0.8 parts of salt, 15-18 parts of oats, 22-25 parts of water, 18-20 parts of corn flour, and 0.8-1.2 parts of additives. The preparation method of the yeast protein compound cat food is to use low-nucleic acid yeast as raw material, and to prepare it through ultrafine grinding, enzymatic hydrolysis, mixing and homogenization, granulation, crushing, sterilization, and packaging. This technology uses a puffing process and has a high starch content. For carnivorous pets such as cats, it is still a high-carbohydrate food, so the cat's health will still be at risk of obesity and diabetes. After searching, it was found that the existing ultrafine grinding technology is generally completed by a grinding blade at high speed, such as CN215029618U and CN205868391U. This can easily cause deviation in the grinding particle size, which is not conducive to the unit protein content in cat food. Summary of the Invention

[0005] In order to solve the above technical problems, the inventors have come up with the technical solution of the present invention through practice and summary. The present invention adopts the following technical solution:

[0006] The preparation method of dry cat food with high fresh meat content based on ultrafine grinding and low-temperature baking is as follows:

[0007] Step 1, raw material pretreatment

[0008] 40-50 portions of fresh chicken, 3-5 portions of chicken hearts, and 3-5 portions of chicken livers are washed in a washing tank and then put into a cooking pot to be cooked, and then filtered and pressed to obtain the clinker;

[0009] Step 2, crush

[0010] After the clinker is cleaned, it is put into the drying box for drying. The dried clinker is sent to the ultrafine grinding box for processing to obtain ultrafine grinding material;

[0011] Among them, the ultrafine grinding box is equipped with an upper grinding disc and a lower grinding disc with corresponding positions, a feeding port is provided in the middle of the upper grinding disc, a feeding bin is connected above the feeding port, a grinding piece is installed in the feeding bin, the feeding bin is connected to the drying box, an upwardly protruding material dividing piece is provided in the middle of the lower grinding disc, the material dividing piece and the feeding port are corresponding in position, a grinding surface is provided on the surface of the opposite side of the upper grinding disc and the lower grinding disc, a fixed disc is installed on the ultrafine grinding box below the lower grinding disc, a floating surface is provided on the opposite side of the fixed disc and the lower grinding disc, and the floating surface is a circumferentially arranged curved surface, a grinding motor is installed on the outer bottom of the ultrafine grinding box, and the output of the grinding motor A driving gear is installed at the end, a transmission shaft is installed at the bottom of the lower crushing disk, the top of the transmission shaft is connected to the crushing piece, the transmission shaft passes through the fixed disk and the ultrafine crushing box and extends to the bottom of the ultrafine crushing box, and a driven gear is axially slidably matched on the transmission shaft, and the driven gear is meshed with the driving gear. A constraint ring is provided on the top of the fixed disk, and an inner insert ring is provided at the bottom of the lower crushing disk. The size of the inner insert ring is smaller than that of the lower crushing disk. The inner insert ring and the constraint ring are socketed up and down and can rotate relatively. A plurality of discharge parts are distributed circumferentially on the ultrafine crushing box outside the fixed disk, and a discharge bin is provided at the bottom of the ultrafine crushing box. The discharge bin is located below the discharge part and is connected to the discharge bin.

[0012] Step 3, Mix

[0013] Adding ultrafine crushed material, auxiliary materials and binding materials into a mixing box and mixing them evenly to obtain a mixture, wherein: the ultrafine crushed material is added in an amount of 66-88 parts by weight, the auxiliary materials include, by weight, 0.1-0.8 parts of broccoli powder, 0.2-0.5 parts of milk calcium, 0.2-0.8 parts of carrot powder, 0.2-0.7 parts of psyllium seeds, 0.3-0.8 parts of yucca powder, 0.07-0.15 parts of cranberry powder, 0.2-0.6 parts of minerals, 0.2-0.5 parts of amino acids, 0.2-0.6 parts of vitamins, 0.01-0.1 parts of rosemary extract, and 0.3-0.9 parts of plant enzymes; and the binding materials include, by weight, 5-15 parts of protein concentrate and 5-10 parts of purified oil;

[0014] Step 4, granulation

[0015] The mixed material is sent to the granulation box for molding to obtain granular green bodies;

[0016] Step 5, low temperature baking

[0017] The pellets are placed in a low-temperature baking oven and processed in a low-temperature baking atmosphere of 80-85°C. After being naturally cooled to room temperature, cat food pellets are obtained.

[0018] In a more preferred solution, the pulverizing surface is provided with pulverizing lines, and the pulverizing surfaces of the upper pulverizing disk and the lower pulverizing disk are both inclined downward, with an inclination angle of 1-5°.

[0019] In a more preferred solution, the crushing member includes an upper cross bar, both ends of the upper cross bar are fixed to the inner wall of the feeding bin, an upper rod is rotatably mounted on the middle part of the upper cross bar, a lower sleeve is axially socketed on the bottom end of the upper rod, a lower connecting rod is rotatably mounted on the outer side of the lower sleeve, an upper connecting rod is rotatably mounted on the outer side of the upper rod, a free end of the lower connecting rod is rotatably mounted on the upper connecting rod body and is located on a side close to the upper rod, and crushing blades are installed on both the upper connecting rod and the lower connecting rod;

[0020] A filter plate is installed on the outside of the lower kit, and the filter plate slides vertically into the inside of the feeding bin;

[0021] A sliding ring is installed on the outer side of the upper rod for axial sliding. A flip plate is distributed on the sliding ring along the filter plate, and the flip plate contacts the filter plate.

[0022] A material stopper head and a plurality of blanking plates circumferentially and evenly distributed on the top of the material stopper head are installed on the lower sleeve. The sides of the plurality of blanking plates close to the lower sleeve gradually deviate in one direction.

[0023] In a more preferred solution, the mixing box includes a primary mixing bin, a secondary mixing bin and a final mixing bin, and an auxiliary material feeding mechanism is installed on the top of the primary mixing bin;

[0024] A mixing element 1 is installed in the primary mixing bin, a mixing element 2 is installed in the secondary mixing bin, the inlet 1 of the secondary mixing bin is connected to the outlet of the primary mixing bin through a pipe 1, the inlet 2 of the secondary mixing bin is connected to the discharge bin through a pipe 2, and a mixing element 3 and a spraying element are installed in the final mixing bin. The mixing element 3 is used to mix the ultrafine crushed material, auxiliary materials and adhesives, and the spraying element is used to spray the mixed purified oil and concentrated protein liquid.

[0025] In a more optimal solution, a feeding box and switch valves distributed outside the feed port and discharge port of the feeding box are installed on the pipe one and the pipe two, a height control plate and a discharge plate are installed in the feeding box, the height control plate slides in the feeding box, a guide rod is installed on the height control plate, the guide rod slides in the top of the feeding box, the discharge plate slides in the feeding box, a discharge cylinder is installed at the bottom of the feeding box, and the output end of the discharge cylinder is connected to the discharge plate.

[0026] In a more optimal solution, the auxiliary material loading mechanism includes a conveyor chain and a bag grabbing chain. The conveyor chain is used to convey bagged auxiliary materials. A bag cutting device is installed at the end of the conveyor chain. The bag cutting device is used to cut the raw material bags. The bag grabbing chain is located above the conveyor chain and overlaps with the upper and lower parts of the conveyor chain. A bag grabbing structure is installed on the bag grabbing chain. A bag recovery box is installed at the end of the bag grabbing chain, and a loose grabbing structure is installed on the bag recovery box.

[0027] In a more preferred solution, the bag grabbing structure includes a mounting plate, and two groups of thorn bag parts are installed on the side of the mounting plate facing away from the bag grabbing chain and rotating along the direction perpendicular to the running direction of the bag grabbing chain. The bottom of the thorn bag part is provided with a thorn bag body, and a contact frame is installed on the outside of the thorn bag part. Connecting ear plates are respectively installed on both sides of the top of the contact frame. The connecting ear plates are vertically slidably fitted with the mounting plate through the guide rod. The two connecting ear plates are arranged along the running direction of the bag grabbing chain, and the side of the contact frame is provided with a guide groove perpendicular to the running direction of the bag grabbing chain. Two groups of moving blocks and spring parts fixed on the moving blocks at both ends are slidably fitted in the guide groove. The moving block is connected to the body of the thorn bag part through a connecting pin, and a constraint is installed on the side of the contact frame. The constraint is used to selectively limit the resetting of the moving block.

[0028] In a more preferred solution, the restraining member includes a one-way stop plate and a fixed plate. The one-way stop plate is distributed above the moving block. A vertical rod is installed on the top of the one-way stop plate. The vertical rod is slidably fitted on the fixed plate. The fixed plate is fixed to the outer wall of the contact frame. An elastic member is sleeved on the outer side of the vertical rod between the fixed plate and the one-way stop plate.

[0029] A side plate is installed on the outer wall of the contact frame, and a sliding rod is slidably fitted on the side plate. One end of the sliding rod is connected to the fixed plate and the one-way stop plate through a connecting rope, and a wedge block is provided at the other end of the sliding rod.

[0030] The loosening and grabbing structure includes a connecting plate and an outer top block. The connecting plate is fixed on the inner wall of the material bag recovery box. The outer top block is installed on the top of the connecting plate. The outer top block is a wedge-shaped structure used to move the wedge block outward. Along the material bag conveying direction, the outer top block and the wedge block are at the same height. When the wedge block passes the position of the outer top block, it is resisted and moves outward.

[0031] In a more preferred solution, the thorn bag member is composed of an oblique body, a curved body and a vertical body from top to bottom, the two vertical bodies are installed with anchoring through-holes on the facing sides, and the two vertical bodies are opened on the back-facing sides with mounting grooves, in which a vertically sliding driving block and a constraint plate located at the slot are installed, an elastic member is installed between the top of the driving block and the mounting groove, driving curved surfaces are evenly distributed on the driving block, a ball head body is adapted to be provided at the driving curved surface, an anchor head body is installed at the end of the ball head body facing away from the driving block, the anchor head body is inserted in the anchoring through-hole, and a spring is provided on the anchor head body between the ball head body and the anchoring through-hole;

[0032] The connecting pin is rotatably mounted on the oblique body, with both ends fixed to the corresponding moving blocks. A winding disk is provided on the connecting pin, and a rope body is wound around the winding disk. One end of the rope body freely enters the mounting groove and is connected to the top of the driving block.

[0033] The thorn bag body is located at the bottom of the vertical body.

[0034] In a better solution, the specific steps of step 3 are as follows:

[0035] Step 31: Loading auxiliary materials

[0036] The bagged auxiliary materials are placed on the conveyor chain by the robot arm. The conveyor chain transports the bagged auxiliary materials to the bag-cutting parts. During the transportation, the bag-grabbing structure on the bag-grabbing chain is used to puncture and grasp the bag and convey the bag synchronously and at the same speed as the conveyor chain. The bag is cut when passing through the bag-cutting parts. After being cut, the auxiliary materials enter the primary mixing bin. The bag is caught by the bag-grabbing structure and transported to the bag recovery box. The loosening structure in the bag recovery box completes the active separation of the bag and the grabbing structure.

[0037] Step 32: Mixing of auxiliary materials

[0038] After each auxiliary material is added into the primary mixing bin, it is mixed and homogenized by the mixing element 1 to obtain an auxiliary material mixture;

[0039] Step 33: Mixing ultrafine powder and auxiliary materials

[0040] By controlling the switch valves on both sides of the feeding box, the material in the feeding box is controlled and the quantitative addition of the material is completed. The quantitatively added auxiliary material mixture and ultrafine crushed material are mixed and homogenized under the action of the mixing element 2 to obtain the raw material mixture;

[0041] Step 34: Spray the adhesive and mix

[0042] After the purified oil and concentrated protein liquid are mixed in proportion, they are sprayed on the raw material mixture entering the final mixing bin through the spraying unit, and the mixing unit three completes the mixing and homogenization of the binder and the raw material mixture.

[0043] Compared with the prior art, the present invention has the following beneficial effects:

[0044] 1. For the preparation process of high-fresh meat cat food, meat needs to be steamed and then crushed. Since the meat contains water and fat at this time, the material particles are uneven and the particle size is large during crushing, which is not conducive to improving the nutrient absorption rate of cat food, improving digestion function and optimizing the palatability of particles. Therefore, the present invention is to steam and ripen the meat raw materials, squeeze to remove most of the water and fat, and dry to remove the remaining water and fat. At this time, after the meat has a certain hardness, it is ultra-finely ground to obtain ultra-fine ground material. The particle size of the ultra-fine ground material can be effectively guaranteed, and then mixed with other auxiliary materials and binders to prepare granular materials. The granular materials are low-temperature baked in a low-temperature baking oven to obtain cat food particles. The preparation of cat food with high fresh meat content is completed by optimizing the cat food preparation process.

[0045] 2. Traditional ultrafine grinding is done by high-speed grinding blades, and the uniformity of the particles is poor. The inventor adopts an ultrafine grinding process with two grindings. That is, during ultrafine grinding, the initial grinding process is first completed by the grinding parts in the feeding bin, and then the particles enter the upper grinding plate through the feeding port, and then enter the upper and lower grinding plates to complete the ultrafine grinding. During the ultrafine grinding, the grinding motor is used to drive the lower grinding plate to rotate. While rotating, the lower grinding plate is completed by the curved surface. The short-distance floating of the lower grinding plate is completed. The meat particles with relatively large particle size will also enter between the upper and lower grinding plates and are intermittently squeezed and crushed to complete the ultrafine grinding.

[0046] In this case, a grinding process is used to ensure the uniformity of the material particles. The reason is that the meat after drying and grinding still has a certain elasticity. When grinding, some meat with relatively large particles will easily be unable to enter the gaps between the grinding surfaces, which can easily cause blockage. The inventor creatively proposed an opening and closing method that simulates "breathing" to allow meat with larger particles to enter the grinding gaps. The vertical extrusion during the simulated "breathing" opening and closing is used to complete the extrusion and crushing action in the grinding gap, thereby grinding the meat into fine fibers to increase the specific surface area, which is beneficial to the reaction with auxiliary materials and binders during subsequent low-temperature baking, thereby improving the taste, flavor and palatability of cat food.

[0047] 3. The present invention also constrains the inclination angle of the pulverizing surface, thereby facilitating the discharge of pulverized material. The pulverizing element is also structurally defined, with the upper rod and lower sleeve axially slidingly cooperating to achieve the vertical floating of the filter plate, facilitating the even entry of pulverized material into the feed port. Simultaneously, the connecting rod completes the initial pulverization of the meat by the pulverizer. During pulverization, the connecting rod drives the pulverizer to adjust its angle and coverage, enabling a wide range of meat pulverization.

[0048] 4. The present invention also mixes the auxiliary materials separately during the raw material mixing process, then mixes them with the ultrafine mixture, and finally mixes them with the binder to form a raw material mixture, which is then granulated and low-temperature baked to obtain cat food pellets. Since the auxiliary materials are generally purchased mature bagged products, when producing cat food in large quantities, it is necessary to manually remove the material bags to add the auxiliary materials. Manual bag removal is labor-intensive and can easily cause the material bags to enter the mixing box and get entangled on the stirring shaft. After searching, it was found that although CN219209793U can complete the bag cutting operation, it will roll when entering the conveyor network through the conveyor belt, which can easily cause part of the raw materials to be wrapped by the packaging bag, resulting in a waste of raw materials. Therefore, the inventor proposed an automatic loading and bag cutting structure, which uses a bag grabbing structure to grab the material bag and then convey it together with the conveyor chain, and cooperates with the bag cutting part to complete the bag cutting operation. The bag after cutting is conveyed by the bag grabbing structure to the bag recovery box to complete the bag loosening action and bag recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 This is a process diagram for cat food of the present invention;

[0050] Figure 2 It is the internal structure diagram of the ultrafine grinding box of the present invention;

[0051] Figure 3 This is a structural diagram of the crushing parts in the ultrafine crushing box of the present invention;

[0052] Figure 4 A top view of the pulverized parts in the ultrafine pulverization box of the present invention;

[0053] Figure 5 This is a bottom structural diagram of the lower crushing plate of the present invention;

[0054] Figure 6 This is a top structural diagram of the fixed plate of the present invention;

[0055] Figure 7 A top view of the material stopper of the present invention;

[0056] Figure 8 A diagram showing the connection between the pulverizing motor and the transmission shaft of the present invention;

[0057] Figure 9 It is a schematic diagram of the overall structure of the mixing box of the present invention;

[0058] Figure 10 This is a diagram showing the internal structure of the loading box of the present invention;

[0059] Figure 11 It is a schematic diagram of the overall structure of the auxiliary material bagging mechanism of the present invention;

[0060] Figure 12 This is a state diagram of the grab bag structure of the present invention under non-working conditions;

[0061] Figure 13 Structure diagram of the constraint of the present application;

[0062] Figure 14 Structure diagram of the constraint of the present application; Figure 12 Structure diagram of the constraint of the present application;

[0063] Figure 15 Structure diagram of the constraint of the present application;

[0064] Figure 16 Structure diagram of the constraint of the present application; Figure 15 Structure diagram of the constraint of the present application;

[0065] Figure 17 Structure diagram of the constraint of the present application; Figure 16 Structure diagram of the constraint of the present application;

[0066] Figure 18 Structure diagram of the constraint of the present application;

[0067] Figure 19 Structure diagram of the constraint of the present application;

[0068] In the figure: 10, cleaning pool; 20, cooking pot; 30, drying box; 40, ultrafine grinding box; 50, mixing box; 60, granulating box; 70, low-temperature baking box;

[0069] 41, upper grinding disc; 411, feeding port; 42, lower grinding disc; 421, distribution member; 422, inner insert; 43, feeding bin; 44, grinding member; 441, upper horizontal rod; 442, upper rod member; 443, lower connecting rod; 444, lower sleeve member; 445, upper connecting rod; 446, filter plate; 447, sliding ring; 448, turning plate; 449, material blocking head; 45, fixed disc; 451, floating surface; 452, constraint ring; 46, grinding motor; 47, transmission shaft; 48, driving gear; 49, driven gear;

[0070] 51. Primary mixing chamber; 511. Mixing element 1; 52. Secondary mixing chamber; 521. Mixing element 2; 53. Final mixing chamber; 531. Mixing element 3; 532. Spraying element; 55. Feeding box; 56. Auxiliary material feeding mechanism; 561. Conveyor chain; 562. Bag grabbing chain; 5621. Mounting plate; 5622. Bag piercing element; 56221. Restraining plate; 56222. Driving block; 56223. Elastic element; 56224. Ball head; 56225. Anchor head; 56226. Elastomer; 56227, winding disk; 56228, rope body; 5623, thorn bag body; 5624, contact frame; 56241, connecting ear plate; 5625, moving block; 5626, spring member; 5627, one-way stop plate; 5628, vertical rod; 5629, elastic member; 56210, side plate; 56211, sliding rod; 56212, wedge block; 563, bag cutting member; 564, bag recovery box; 5641, connecting plate; 5642, outer top block. DETAILED DESCRIPTION

[0071] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0072] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0073] Example 1

[0074] like Figure 1 As shown, the preparation method of dry cat food with high fresh meat content based on ultrafine grinding and low-temperature baking is as follows:

[0075] Step 1, raw material pretreatment

[0076] 40-50 parts of fresh chicken, 3-5 parts of chicken hearts, and 3-5 parts of chicken livers are washed in a washing tank 10 and then sent to a cooking pot 20 for cooking, and then filtered and squeezed to obtain a clinker;

[0077] Step 2, crush

[0078] After the clinker is cleaned, it is put into the drying box 30 for drying. The dried clinker is sent to the ultrafine grinding box 40 for processing to obtain ultrafine grinding material;

[0079] like Figure 2 、5 As shown in , 6, and 8, an upper crushing disc 41 and a lower crushing disc 42 corresponding in position are installed in the ultrafine grinding box 40, a feeding port 411 is provided in the middle of the upper crushing disc 41, a feeding bin 43 is connected above the feeding port 411, a crushing piece 44 is installed in the feeding bin 43, the feeding bin 43 is connected to the drying box 30, an upwardly protruding material dividing piece 421 is provided in the middle of the lower crushing disc 42, the material dividing piece 421 corresponds to the position of the feeding port 411, a crushing surface is provided on the surface of the opposite side of the upper crushing disc 41 and the lower crushing disc 42, a fixed disc 45 is installed on the ultrafine grinding box 40 below the lower crushing disc 42, and a floating surface 451 is provided on the opposite side of the fixed disc 45 and the lower crushing disc 42, and the floating surface 451 is a circumferentially arranged curved surface, and a plurality of curved surfaces are distributed circumferentially at equal intervals. A crushing The motor 46 and the output end of the crushing motor 46 are equipped with a driving gear 48, and a transmission shaft 47 is installed at the bottom of the lower crushing disk 42. The top of the transmission shaft 47 is connected to the crushing piece 44, and the transmission shaft 47 passes through the fixed disk 45 and the ultrafine crushing box 40 and extends to the bottom of the ultrafine crushing box 40. A driven gear 49 is axially slidably fitted on the transmission shaft 47, and the driven gear 49 is meshed with the driving gear 48. A restraining ring 452 is provided on the top of the fixed disk 45, and an insert 422 is provided at the bottom of the lower crushing disk 42. The size of the insert 422 is smaller than that of the lower crushing disk 42. The insert 422 and the restraining ring 452 are socketed and can rotate relative to each other. A plurality of discharge parts are distributed circumferentially on the ultrafine crushing box 40 outside the fixed disk 45, and a discharge bin is provided at the bottom of the ultrafine crushing box 40. The discharge bin is located below the discharge part and is communicated with the discharge bin;

[0080] The crushing motor 46 drives the transmission shaft 47 to rotate through the driving gear 48 and the driven gear 49, and at the same time drives the lower crushing plate 42 to rotate. When the lower crushing plate 42 rotates, it is affected by the curved surface of the bottom and moves up and down, so that slightly larger meat particles can also enter between the crushing surfaces, completing the extrusion and crushing action. When the lower crushing plate 42 rotates, it drives the crushing element 44 to rotate to crush the cooked meat in the feeding bin 43.

[0081] Step 3, Mix

[0082] Add ultrafine crushed material, auxiliary materials and binder into the mixing box 50 and mix them evenly to obtain a mixture, wherein: the ultrafine crushed material is added in an amount of 66-88 parts by weight, and the auxiliary materials include 0.1-0.8 parts of broccoli powder, 0.2-0.5 parts of milk calcium, 0.2-0.8 parts of carrot powder, 0.2-0.7 parts of psyllium seeds, 0.3-0.8 parts of yucca powder, 0.07-0.15 parts of cranberry powder, 0.2-0.6 parts of minerals, and 0.2-0 amino acids. 0.5 parts, 0.2-0.6 parts of vitamins, 0.01-0.1 parts of rosemary extract, 0.3-0.9 parts of plant enzymes, the binder comprises 5-15 parts of protein concentrate and 5-10 parts of purified oil in parts by weight, wherein the protein concentrate and the purified oil are both derived from the broth in the cooking pot 10 and the broth produced during squeezing, and after oil-water separation, the protein liquid and the purified oil are obtained, and the protein concentrate is concentrated at low temperature to obtain an aqueous solution with a protein content of at least 40%;

[0083] Step 4, granulation

[0084] The mixed material is fed into the granulation box 60 for forming and forming to obtain granular green bodies;

[0085] Step 5: Low temperature baking

[0086] The pellets enter a low-temperature baking oven 70 and are treated in a low-temperature baking atmosphere of 80-85° C., and are naturally cooled to room temperature to obtain cat food pellets.

[0087] Example 2

[0088] In Example 1, Figure 2 As shown, the pulverizing surface is provided with pulverizing lines for pulverizing meat particles. The pulverizing surfaces of the upper pulverizing disk 41 and the lower pulverizing disk 42 are both inclined downward for easy feeding and have an inclination angle of 1-5°.

[0089] Example 3

[0090] In Example 2, Figure 2 、 3 As shown in Figure 4, the crushing member 44 includes an upper cross bar 441, both ends of the upper cross bar 441 are fixed to the inner wall of the feeding bin 43, an upper rod 442 is rotatably mounted on the middle part of the upper cross bar 441, a lower sleeve 444 is axially socketed on the bottom end of the upper rod 442, a lower connecting rod 443 is rotatably mounted on the outer side of the lower sleeve 444, an upper connecting rod 445 is rotatably mounted on the outer side of the upper rod 442, a free end of the lower connecting rod 443 is rotatably mounted on the rod body of the upper connecting rod 445 and is located on a side close to the upper rod 442, and crushing blades are installed on both the upper connecting rod 445 and the lower connecting rod 443;

[0091] A filter plate 446 is mounted on the outside of the lower sleeve 444, and the filter plate 446 is vertically slidably fitted inside the feeding bin 43;

[0092] A sliding ring 447 is axially slidably mounted on the outer side of the upper rod 442 , and a flip plate 448 is distributed on the sliding ring 447 along the filter plate 446 , and the flip plate 448 contacts the filter plate 446 ;

[0093] like Figure 7 As shown, the lower sleeve 444 is equipped with a stopper head 449 and a plurality of blanking plates distributed at equal intervals on the top of the stopper head 449 in the circumferential direction, and the blanking plates have a certain elastic deformation.

[0094] The lower kit 444 reciprocates up and down, and then drives the upper connecting rod 445 to extend and retract through the lower connecting rod 443, thereby adjusting the crushing path and range of the crushing blade. The filter plate 446 will also move up and down while rotating to facilitate the meat particles that meet the particle size to enter the bottom, and the meat particles that do not meet the particle size will be separated, thereby ensuring that the particle size entering the feeding port meets the requirements. Secondly, the flipping plate 448 will flip the crushed meat particles as the upper rod 442 rotates to prevent the meat particles from accumulating on the filter plate 446. The blocking head 449 floats up and down to facilitate the meat particles that meet the particle size requirements to enter the feeding port. At the same time, the blanking plate will be used to push the meat particles downward into the feeding port during the rotation.

[0095] Example 4

[0096] In Example 3, Figure 9 As shown, the mixing box 50 includes a primary mixing bin 51, a secondary mixing bin 52 and a final mixing bin 53, and an auxiliary material feeding mechanism 56 is installed on the top of the primary mixing bin 51;

[0097] A mixing element 1 511 is installed in the initial mixing bin 51, a mixing element 2 521 is installed in the second mixing bin 52, the import 1 of the second mixing bin 52 is connected to the outlet of the initial mixing bin 51 through a pipeline 1, the import 2 of the second mixing bin 52 is connected to the discharge bin through a pipeline 2, and a mixing element 3 531 and a spraying element 532 are installed in the final mixing bin 53. The mixing element 3 531 is used to mix ultrafine crushed material with auxiliary materials and adhesives, and the spraying element 532 is used to spray the mixed purified oil and concentrated protein liquid. Automatic loading is completed by the auxiliary material feeding mechanism 56, and a variety of auxiliary materials enter the internal mixing bin 51 of the initial mixing bin for homogeneous mixing. The mixed auxiliary materials enter the second mixing bin 52 and complete mixing and homogeneity with the ultrafine crushed material, and spray the purified oil and concentrated protein liquid mixed liquid in the final mixing bin 53 to obtain a mixed homogeneous mixture.

[0098] Example 5

[0099] In Example 4, Figure 10As shown, the pipes 1 and 2 are equipped with a loading box 55 and switch valves distributed outside the feeding port and the discharging port of the loading box 55. Automatic quantitative loading is achieved by controlling the switch valves on both sides. A height control plate 551 and a discharging plate 552 are installed in the loading box 55. The height control plate 551 slides in the loading box 55. A guide rod 554 is installed on the height control plate 551. A threaded rod is installed on the top of the height control plate 551. The threaded rod is installed on the top of the loading box 55. The guide rod 554 slides in the top of the loading box 55. The discharging plate 552 slides in the loading box 55. A discharging cylinder 553 is installed at the bottom of the loading box 55. The output end of the discharging cylinder 553 is connected to the discharging plate 552. The discharging cylinder 553 drives the discharging plate 552 upward to complete the discharging. The threaded rod is used to adjust the height of the height control plate 551, thereby controlling the amount of material entering the loading box 55 each time.

[0100] Example 6

[0101] In Example 5, Figures 11 to 19 As shown, the auxiliary material loading mechanism 56 includes a conveyor chain 561 and a bag grabbing chain 562. The conveyor chain 561 is used to convey bagged auxiliary materials. A bag cutting component 563 is installed at the end of the conveyor chain 561. The bag cutting component 563 is used to cut the raw material bags. The bag grabbing chain 562 is located above the conveyor chain 561 and overlaps with the upper and lower parts of the conveyor chain 561. A bag grabbing structure is installed on the bag grabbing chain 562. A bag recovery box 564 is installed at the end of the bag grabbing chain 562. A loose grabbing structure is installed on the bag recovery box 564.

[0102] The grab bag structure includes a mounting plate 5621. Two sets of thorn bag members 5622 are installed on the side of the mounting plate 5621 facing away from the grab bag chain 562 and rotating along the direction perpendicular to the running direction of the grab bag chain 562. The bottom of the thorn bag member 5622 is provided with a thorn bag body 5623. A contact frame 5624 is installed on the outside of the thorn bag member 5622. Connecting ear plates 56241 are installed on both sides of the top of the contact frame 5624 respectively. The connecting ear plates 56241 are vertically slidably matched with the mounting plate 5621 through the guide rod 554. The two connecting ear plates 56241 are symmetrically distributed along the running direction of the grab bag chain 562. The side of the contact frame 5624 is provided with a guide groove perpendicular to the running direction of the grab bag chain 562. Two sets of moving blocks 5625 and spring members 5626 fixed on the moving blocks 5625 at both ends are slidably fitted in the guide groove. The moving blocks 5625 are connected to the body of the bag-piercing member 5622 through a connecting pin. A constraint is installed on the side of the contact frame 5624, which is used to selectively limit the reset of the moving blocks 5625.

[0103] During the operation of the bag-grabbing chain 562, the bag-piercing elements 5622, due to the action of the spring elements 5626, maintain their current position (the bag-piercing elements are perpendicular to the bag), causing the bag-piercing elements at the bottom to pierce the bag. Subsequently, the contact frame 5624 gradually contacts the bag and is blocked from moving upward relative to the bag. Simultaneously, the connecting pins drive the bag-piercing elements 5622 toward each other. As they approach, the moving block 5625 compresses the spring elements 5626. The restraining elements restrict the moving block 5625 from moving in the opposite direction, thereby maintaining the bag-piercing elements 5622 in this position and firmly grasping the bag. It should be noted that when the contact frame 5624 is above the mounting plate 5621, the spring elements 5626 do not undergo any elastic deformation.

[0104] Among them, such as Figure 13 As shown, the restraining member includes a one-way stop plate 5627 and a fixed plate (5628). The one-way stop plate 5627 is distributed above the moving block 5625. A vertical rod is installed on the top of the one-way stop plate 5627. The vertical rod is slidably fitted on the fixed plate (5628). The fixed plate (5628) is fixed to the outer wall of the contact frame 5624. An elastic member 5629 is sleeved on the outer side of the vertical rod between the fixed plate (5628) and the one-way stop plate 5627. The one-way stop plate 5627 and the moving block 5625 are separated.

[0105] like Figure 14 As shown, a side plate 56210 is installed on the outer wall of the contact frame 5624, and a sliding rod 56211 is slidably fitted on the side plate 56210. One end of the sliding rod 56211 is connected to the fixed plate (5628) and the one-way stop plate 5627 through a connecting rope, and the other end of the sliding rod 56211 is provided with a wedge block 56212;

[0106] like Figure 18 、 19 As shown, the loosening and grasping structure includes a connecting plate 5641 and an outer top block 5642. The connecting plate 5641 is fixed on the inner wall of the material bag recovery box 564. The outer top block 5642 is installed on the top of the connecting plate 5641. The outer top block 5642 is a wedge-shaped structure used to act on the wedge block 56212 to move outward. Along the material bag conveying direction, the outer top block 5642 and the wedge block 56212 are at the same height. When the wedge block 56212 passes the position of the outer top block 5642, it is resisted and moves outward.

[0107] As the bag grabbing chain 562 continues to operate, the raw materials in the bag fall from the bag cutting opening into the primary mixing bin 51 under the action of the bag cutting member 563. The bag piercing member 5622 only grabs the bag and completes the outward movement of the wedge block 56212 through the outer top block 5642 along the way. The one-way stop plate 5627 and the moving block 5625 are driven to separate through the connecting rope, thereby releasing the restraint state of the moving block 5625. The moving block 5625 is reset under the action of the spring member 5626, and the bag piercing member 5622 is automatically reset accordingly.

[0108] like Figure 16 、 17 As shown, the thorn bag member 5622 is composed of an oblique body, a curved body and a vertical body from top to bottom. The two vertical bodies are installed with anchoring through-holes on the facing sides. The two vertical bodies are provided with mounting grooves on the back-facing sides. A vertically sliding driving block 56222 and a constraint plate 56221 located at the groove are installed in the mounting groove. An elastic member 56223 is installed between the top of the driving block 56222 and the mounting groove. Driving curved surfaces are evenly distributed on the driving block 56222. A ball head body 56224 is adapted to the driving curved surface. An anchor head body 56225 is installed at the end of the ball head body 56224 facing away from the driving block 56222. The anchor head body 56225 is inserted into the anchoring through-hole. An elastic body 56226 is provided on the anchor head body 56225 between the ball head body 56224 and the anchoring through-hole.

[0109] The connecting pin is rotatably mounted on the oblique body, with both ends fixed to corresponding moving blocks 5625. A winding plate 56227 is provided on the connecting pin, and a rope 56228 is wound around the winding plate 56227. One end of the rope 56228 freely enters the mounting slot and is connected to the top of the driving block 56222.

[0110] The thorn bag body 5623 is located at the bottom of the vertical body.

[0111] During specific implementation, after the bag-piercing part 5622 enters the material bag, the contact frame 5624 drives the bag-piercing part 5622 to rotate. Since it rotates upward by a certain angle relative to the connecting pin, the winding plate 56227 will wind a certain length of rope 56228, and the driving block 56222 is driven upward by the rope 56228 to overcome the force of the elastic part 56223. The driving curved surface squeezes the ball head body 56224 outward and squeezes the elastic body 56226 on the outside through the ball head body 56224. When the ball head body 56224 moves to the vertical plane between the two driving curved surfaces on the driving block 56222, the anchor head body 56225 is extended to grab the bag to prevent the bag from accidentally falling. At this time, the elastic body 56226 acts on the ball head body 56224 directly vertically on the vertical plane, which can ensure that the anchor head body 56225 is in a stable state.

[0112] In this state, the moving block 5625 will not move reversely under the action of the constraint, thereby keeping the state of the bag-piercing member 5622 and the anchor head body 56225 stable. When the constraint on the moving block 5625 is released, the contact frame 5624 will fall, the bag-piercing member 5622 will rotate reversely relative to the winding disc 56227, and the driving block 56222 will complete resetting under the action of the elastic member 56223. In this process, when the ball head body 56224 enters the driving curved surface region, the anchor head body 56225 also returns to the vertical body under the action of the elastic body 56226, thereby completing automatic shedding of the material bag.

[0113] In Example 6, as shown in Figures 11 to 19 , the specific steps of Step 3 are as follows:

[0114] Step 31, auxiliary material loading

[0115] The bagged auxiliary materials are placed on the conveying chain 561 by the mechanical hand, and the conveying chain 561 conveys the bagged auxiliary material box to the bag-piercing member 563. During the conveying, the bag-piercing structure on the bag-piercing chain 562 is used to pierce and grasp the material bag, and the bag-piercing structure and the conveying chain 561 convey the material bag at the same speed. The material bag is cut when passing through the bag-piercing member 563, and after being cut, the auxiliary material enters the initial mixing bin 51. The bag-piercing structure grasps the material bag and conveys it to the material bag recycling box 564, and the material bag and the bag-piercing structure are actively separated in the loose grasping structure in the material bag recycling box 564.

[0116] Step 32, auxiliary material mixing

[0117] After the auxiliary materials are added to the initial mixing bin 51, they are mixed and homogenized by the mixing member 1 511 to obtain the auxiliary material mixture.

[0118] Step 33, mixing of ultrafine pulverized material and auxiliary material

[0119] The material in the loading box 55 is controlled by controlling the on-off valves on both sides of the loading box 55, and the auxiliary material mixture and the ultrafine pulverized material are quantitatively added. The auxiliary material mixture and the ultrafine pulverized material are mixed and homogenized by the mixing member 2 521 to obtain the raw material mixture.

[0120] Step 34, spraying of adhesive material and mixing

[0121] After the purified oil and the concentrated protein solution are mixed in a certain proportion, they are sprayed on the raw material mixture entering the final mixing bin 53 by the spraying member 532, and the adhesive material and the raw material mixture are mixed and homogenized by the mixing member 3 531.

[0122] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. The replacement may be a replacement of a portion of a structure, device, or method step, or it may be a complete technical solution. Any equivalent replacement or modification based on the technical solution and inventive concept of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A method for preparing dry cat food with high fresh meat content based on ultrafine grinding and low-temperature baking, characterized in that: Here are the steps: Step 1, raw material pretreatment 40-50 portions of fresh chicken, 3-5 portions of chicken hearts, and 3-5 portions of chicken livers are placed in a cleaning tank (10) for cleaning, and then placed in a cooking pot (20) for cooking, and then filtered and pressed to obtain a clinker; Step 2, crush After the clinker is cleaned, it is put into a drying box (30) for drying. The dried clinker is sent to an ultrafine grinding box (40) for processing to obtain ultrafine ground material; Step 3, Mix Adding ultrafine pulverized material, auxiliary materials and binder into a mixing box (50), mixing them evenly, and obtaining a mixture, wherein: the ultrafine pulverized material is added in an amount of 66-88 parts by weight, the auxiliary materials include 0.1-0.8 parts of broccoli powder, 0.2-0.5 parts of milk calcium, 0.2-0.8 parts of carrot powder, 0.2-0.7 parts of psyllium seeds, 0.3-0.8 parts of yucca powder, 0.07-0.15 parts of cranberry powder, 0.2-0.6 parts of minerals, 0.2-0.5 parts of amino acids, 0.2-0.6 parts of vitamins, 0.01-0.1 parts of rosemary extract, and 0.3-0.9 parts of plant enzymes, and the binder includes 5-15 parts of protein concentrate and 5-10 parts of purified oil in parts by weight; Step 4, granulation The mixed material is fed into a granulation box (60) for molding to obtain granular bodies; Step 5, low temperature baking The pellets are placed in a low-temperature baking oven (70) and treated in a low-temperature baking atmosphere of 80-85°C. After being naturally cooled to room temperature, cat food pellets are obtained.

2. The method for preparing dry cat food with high fresh meat content based on ultrafine grinding and low-temperature baking according to claim 1, characterized in that: The ultrafine grinding box (40) is equipped with an upper grinding disc (41) and a lower grinding disc (42) in corresponding positions. A feeding port (411) is provided in the middle of the upper grinding disc (41). A feeding bin (43) is connected above the feeding port (411). A grinding element (44) is installed in the feeding bin (43). The feeding bin (43) is connected to the drying box (30). An upwardly protruding material dividing element (421) is provided in the middle of the lower grinding disc (42). The material dividing element (421) and the feeding port are connected. (411) position corresponds to the upper crushing disc (41) and the lower crushing disc (42) on the opposite side of the surface is provided with a crushing surface, the ultrafine crushing box (40) located below the lower crushing disc (42) is installed with a fixed disc (45), the fixed disc (45) and the lower crushing disc (42) on the opposite side are provided with a floating surface (451), the floating surface (451) is a circumferentially arranged curved surface, the outer bottom of the ultrafine crushing box (40) is installed with a crushing motor (46), the crushing motor ( The output end of the lower crushing plate (46) is provided with a driving gear (48), the bottom of the lower crushing plate (42) is provided with a transmission shaft (47), the top of the transmission shaft (47) is connected to the crushing element (44), the transmission shaft (47) passes through the fixed plate (45), the ultrafine crushing box (40) and extends to the bottom of the ultrafine crushing box (40), the transmission shaft (47) is axially slidably matched with a driven gear (49), the driven gear (49) and the driving gear (48) are meshed, and the top of the fixed plate (45) is provided with a driven gear (49). A restraining ring (452) is provided, an insert (422) is provided at the bottom of the lower crushing disk (42), the size of the insert (422) is smaller than the size of the lower crushing disk (42), the insert (422) and the restraining ring (452) are inserted in a socket-type manner and can rotate relative to each other, a plurality of discharge portions are distributed circumferentially on the ultrafine crushing box (40) outside the fixed disk (45), a discharge bin is provided at the bottom of the ultrafine crushing box (40), the discharge bin is located below the discharge portion and is in communication with the discharge bin; The pulverizing surfaces are provided with pulverizing lines, and the pulverizing surfaces of the upper pulverizing disk (41) and the lower pulverizing disk (42) are both arranged obliquely downward, with an inclination angle of 1-5°.

3. The method for preparing dry cat food with high fresh meat content based on ultrafine grinding and low-temperature baking according to claim 2, characterized in that, The crushing member (44) includes an upper crossbar (441), both ends of the upper crossbar (441) are fixed to the inner wall of the feeding bin (43), an upper rod (442) is rotatably mounted on the middle part of the upper crossbar (441), a lower sleeve (444) is axially socketed on the bottom end of the upper rod (442), a lower connecting rod (443) is rotatably mounted on the outer side of the lower sleeve (444), an upper connecting rod (445) is rotatably mounted on the outer side of the upper rod (442), a free end of the lower connecting rod (443) is rotatably mounted on the rod body of the upper connecting rod (445) and is located on a side close to the upper rod (442), and crushing blades are mounted on both the upper connecting rod (445) and the lower connecting rod (443); A filter plate (446) is installed on the outer side of the lower sleeve (444), and the filter plate (446) is vertically slidably fitted inside the feeding bin (43); A sliding ring (447) is axially slidably mounted on the outer side of the upper rod (442), and a flipping plate (448) is distributed on the sliding ring (447) along the filter plate (446), and the flipping plate (448) contacts the filter plate (446); The lower set (444) is provided with a stopper head (449) and a plurality of blanking plates equidistantly distributed on the top of the stopper head (449) in the circumferential direction. The plurality of blanking plates are gradually deviated in one direction on one side close to the lower set (444).

4. The method for preparing dry cat food with high fresh meat content based on ultrafine grinding and low-temperature baking according to claim 1, characterized in that The mixing box (50) includes a primary mixing bin (51), a secondary mixing bin (52), and a final mixing bin (53), and an auxiliary material feeding mechanism (56) is installed on the top of the primary mixing bin (51); A mixing element 1 (511) is installed in the primary mixing bin (51), a mixing element 2 (521) is installed in the secondary mixing bin (52), an inlet 1 of the secondary mixing bin (52) and an outlet of the primary mixing bin (51) are connected via a pipe 1, an inlet 2 of the secondary mixing bin (52) and a discharge bin are connected via a pipe 2, a mixing element 3 (531) and a spraying element (532) are installed in the final mixing bin (53), the mixing element 3 (531) is used to mix the ultrafine crushed material, the auxiliary material and the binder, and the spraying element (532) is used to spray the mixed purified oil and concentrated protein liquid.

5. The method for preparing dry cat food with high fresh meat content based on ultrafine grinding and low-temperature baking according to claim 4, characterized in that, The pipelines 1 and 2 are provided with a loading box (55) and switch valves distributed outside the feeding port and the discharging port of the loading box (55); a height control plate (551) and a discharging plate (552) are provided in the loading box (55); the height control plate (551) is slidably fitted in the loading box (55); a guide rod (554) is provided on the height control plate (551); the guide rod (554) is slidably fitted in the top of the loading box (55); the discharging plate (552) is slidably fitted in the loading box (55); a discharging cylinder (553) is provided at the bottom of the loading box (55); and an output end of the discharging cylinder (553) is connected to the discharging plate (552).

6. The method for preparing dry cat food with high fresh meat content based on ultrafine grinding and low-temperature baking according to claim 4, characterized in that: The auxiliary material feeding mechanism (56) includes a conveyor chain (561) and a bag grabbing chain (562). The conveyor chain (561) is used to convey bagged auxiliary materials. A bag cutting member (563) is installed at the end of the conveyor chain (561). The bag cutting member (563) is used to cut the raw material bag. The bag grabbing chain (562) is located above the conveyor chain (561) and overlaps with the upper and lower parts of the conveyor chain (561). A bag grabbing structure is installed on the bag grabbing chain (562). A bag recovery box (564) is installed at the end of the bag grabbing chain (562). A loosening structure is installed on the bag recovery box (564).

7. The method for preparing dry cat food with high fresh meat content based on ultrafine grinding and low-temperature baking according to claim 6, characterized in that: The grab bag structure comprises a mounting plate (5621). Two sets of thorn bag members (5622) are mounted on one side of the mounting plate (5621) facing away from the grab bag chain (562) and rotatably arranged along a direction perpendicular to the running direction of the grab bag chain (562). A thorn bag body (5623) is arranged at the bottom of the thorn bag member (5622). A contact frame (5624) is mounted on the outer side of the thorn bag member (5622). Connecting ear plates (56241) are respectively mounted on both sides of the top of the contact frame (5624). The connecting ear plates (56241) are vertically connected to the mounting plate (5621) via a guide rod (554). The two connecting ear plates (56241) are arranged along the running direction of the bag grabbing chain (562), and the side of the contact frame (5624) is provided with a guide groove perpendicular to the running direction of the bag grabbing chain (562). Two sets of moving blocks (5625) and spring members (5626) fixed at both ends to the moving blocks (5625) are slidingly fitted in the guide groove. The moving blocks (5625) are connected to the body of the bag piercing member (5622) through a connecting pin. A restraining member is installed on the side of the contact frame (5624), and the restraining member is used to selectively limit the resetting of the moving blocks (5625).

8. The method for preparing dry cat food with high fresh meat content based on ultrafine grinding and low-temperature baking according to claim 7, characterized in that: The restraining member includes a one-way stop plate (5627) and a fixed plate (5628). The one-way stop plate (5627) is distributed above the moving block (5625). A vertical rod is installed on the top of the one-way stop plate (5627). The vertical rod is slidably fitted on the fixed plate (5628). The fixed plate (5628) is fixed on the outer wall of the contact frame (5624). An elastic member (5629) is sleeved on the outer side of the vertical rod between the fixed plate (5628) and the one-way stop plate (5627). A side plate (56210) is mounted on the outer wall of the contact frame (5624), and a sliding rod (56211) is slidably engaged with the side plate (56210). One end of the sliding rod (56211) is connected to the fixed plate (5628) and the one-way stop plate (5627) via a connecting rope, and a wedge block (56212) is provided at the other end of the sliding rod (56211). The loosening and grasping structure includes a connecting plate (5641) and an outer top block (5642). The connecting plate (5641) is fixed on the inner wall of the material bag recovery box (564). The outer top block (5642) is installed on the top of the connecting plate (5641). The outer top block (5642) is a wedge-shaped structure used to act on the wedge block (56212) to move outward. In the direction of material bag conveying, the outer top block (5642) and the wedge block (56212) are at the same height. When the wedge block (56212) passes the position of the outer top block (5642), it is resisted and moves outward.

9. The method for preparing dry cat food with high fresh meat content based on ultrafine grinding and low-temperature baking according to claim 8, characterized in that: The thorn bag member (5622) is composed of an oblique body, a curved body, and a vertical body from top to bottom. The two vertical bodies are both provided with anchoring through-holes on the facing sides. The two vertical bodies are both provided with mounting grooves on the opposite sides. A vertically sliding driving block (56222) and a restraining plate (56221) located at the slot are installed in the mounting grooves. An elastic member (56223) is installed between the top of the driving block (56222) and the mounting groove. Driving curved surfaces are evenly distributed on the driving block (56222). A ball head body (56224) is adapted to be provided on the driving curved surface. An anchor head body (56225) is installed on the end of the ball head body (56224) facing away from the driving block (56222). The anchor head body (56225) is inserted into the anchoring through-hole. An elastic body (56226) is provided on the anchor head body (56225) between the ball head body (56224) and the anchoring through-hole. The connecting pin is rotatably mounted on the oblique body, and both ends are fixed on the corresponding moving blocks (5625). A winding disk (56227) is provided on the connecting pin, and a rope body (56228) is wound around the winding disk (56227). One end of the rope body (56228) freely enters the mounting groove and is connected to the top of the driving block (56222). The thorn bag body (5623) is located at the bottom of the vertical body.

10. The method for preparing dry cat food with high fresh meat content based on ultrafine grinding and low-temperature baking according to claim 9, characterized in that: The specific steps of step 3 are as follows: Step 31: Loading auxiliary materials The bagged auxiliary materials are placed on the conveyor chain (561) by the robot, and the conveyor chain (561) conveys the bagged auxiliary materials to the bag cutting part (563). During the conveying, the bag grabbing structure on the bag grabbing chain (562) is used to puncture and grab the bag and convey the bag synchronously and at the same speed as the conveyor chain (561). The bag is cut when passing through the bag cutting part (563). After being cut, the auxiliary materials enter the primary mixing bin (51), and the bag is caught by the bag grabbing structure and conveyed to the bag recovery box (564). The loose gripping structure in the bag recovery box (564) completes the active separation of the bag and the gripping structure; Step 32: Mixing of auxiliary materials After each auxiliary material is added into the primary mixing bin (51), it is mixed and homogenized by the mixing element 1 (511) to obtain an auxiliary material mixture; Step 33: Mixing ultrafine powder and auxiliary materials The control of the materials in the feeding box (55) is completed by controlling the switch valves on both sides of the feeding box (55), and the quantitative addition of the materials is completed. The quantitatively added auxiliary material mixture and the ultrafine crushed material are mixed and homogenized under the action of the second mixing element (521) to obtain the raw material mixture; Step 34: Spray the adhesive and mix After the purified oil and concentrated protein liquid are mixed in proportion, they are sprayed onto the raw material mixture entering the final mixing bin (53) through the spraying element (532), and the mixing element three (531) completes the mixing and homogenization of the binder and the raw material mixture.

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