Forming device for producing cat litter by using straw and bean dreg waste

Abstract

The utility model belongs to the technical field of cat litter production equipment, and particularly relates to a forming device for producing cat litter by utilizing straw and bean dreg waste. The device comprises a frame body, a shell, a cavity-divided inner container and a sieve plate system, the inner container is divided into a feeding cavity, a stirring cavity and a forming cavity through a movable sieve plate and a fixed sieve plate, a stirring shaft and a stirring rod rotate reversely, and crushing blades and the stirring rod form double shearing force to thoroughly scatter bean dreg cakes and mix straws; a through hole in the hollow stirring shaft is of a Venturi hole structure, auxiliary materials such as corn starch are uniformly sprayed through centrifugal force, and the caking property of the cat litter is enhanced; protrusions on the surface of the movable sieve plate are combined with sieve holes, raw materials are dynamically crushed and sieved, and the bridging phenomenon is avoided; the scraping plate rotates along with the stirring shaft to clean the fixed sieve plate, the compression roller set compresses materials to output uniform particles, the problems of caking and uneven mixing of bean dregs are solved through cavity separation treatment, reverse stirring and accurate auxiliary material adding, and the water absorption, caking property and particle consistency of cat litter are remarkably improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of cat litter production equipment, specifically a molding device for producing cat litter using straw and soybean residue waste. Background Technology

[0002] Cat litter is typically made by grinding paper pulp into small granules to mimic sand and provide absorbency. Some also use granules containing physical desiccants like silica gel. It usually contains added chemicals such as antibacterial agents, deodorizers, and preservatives. Cat litter will clump together when it comes into contact with water.

[0003] Tofu cat litter is primarily made from tofu residue. Its ingredients typically include: tofu residue: the main raw material, environmentally friendly and non-toxic; corn starch: enhances clumping and absorbency; activated charcoal: used for deodorization and odor absorption; and other plant materials such as crushed straw powder, and binders. Due to the properties of tofu residue, traditional cat litter production equipment often results in the residue clumping together during mixing, making it difficult to fully mix the straw with the residue, leading to inconsistent quality of the produced cat litter. Summary of the Invention

[0004] The purpose of this invention is to propose a molding device for producing cat litter using straw and soybean residue waste, in order to solve the problems mentioned in the background art.

[0005] A molding device for producing cat litter using straw and soybean residue waste includes a frame;

[0006] The outer casing is mounted on top of the frame; the outer casing is a hollow cavity.

[0007] The frame provides stable support for the entire device, while the outer shell, as a hollow cavity, houses the core stirring components, ensuring that the overall structure of the device is compact and operates smoothly. The outer shell and the inner liner cooperate, and the rotation of the inner liner is achieved through bearings, while fixing the external components and ensuring the efficient operation of dynamic components.

[0008] The inner liner is nested within the hollow cavity and is rotatably connected to the outer shell; the inner liner is a hollow cavity.

[0009] The sieve plate includes a movable sieve plate and a fixed sieve plate. The sieve plate, including the movable sieve plate and the fixed sieve plate, is installed inside the inner liner. The movable sieve plate and the fixed sieve plate divide the hollow cavity of the inner liner into a feeding cavity, a mixing cavity and a forming cavity.

[0010] The stirring shaft is embedded in the hollow cavity of the inner liner and extends through the feeding chamber and the stirring chamber.

[0011] Crushing blades, multiple crushing blades are sleeved on the surface of the stirring shaft and located above the stirring chamber;

[0012] Stirring rods, with the ends of multiple stirring rods fixedly connected to the inner wall of the inner liner;

[0013] A sleeve is fitted onto the end of the stirring shaft, and the sleeve is rotatably connected to the stirring shaft. The outer wall of the sleeve is fixedly connected to the end of the stirring rod.

[0014] Furthermore, the inner liner includes an upper rotating inner liner and a lower fixed inner liner. The upper rotating inner liner includes a feeding chamber and a stirring chamber, and the lower fixed inner liner includes a forming chamber. Bearings are installed between the upper rotating inner liner, the lower fixed inner liner, and the outer shell. The cavity design adapts to different processing stages and improves the overall processing efficiency.

[0015] Specifically, the upper rotating inner liner and the lower fixed inner liner are connected by roller bearings. When the upper rotating inner liner rotates, the lower fixed inner liner remains stationary. The upper rotating inner liner and the outer shell are connected by cylindrical roller bearings and thrust ball bearings. When the upper rotating inner liner rotates, the outer shell remains stationary.

[0016] Furthermore, a gear ring is provided on the outer wall surface at the bottom of the upper rotating inner liner, and a rotating motor is also included. The rotating motor is mounted on the frame, and a drive gear is installed at the output end of the rotating motor. A chain is wound around the circumferential surface of the drive gear and the gear ring.

[0017] Furthermore, the screen plate controls the flow of raw materials in stages, and the rotational disturbance of the moving screen plate is combined with the static screening of the fixed screen plate to optimize the mixing efficiency.

[0018] During operation, the rotary motor drives the drive gear to rotate, which in turn drives the upper rotating inner liner to rotate via the chain. This causes the stirring rod to rotate along the stirring shaft axis. When the stirring motor is started, it drives the stirring shaft to rotate in the opposite direction to the rotation of the upper rotating inner liner. This causes the crushing blades to rotate in the opposite direction to the stirring rod, creating a double crushing and stirring process. This ensures that the soybean residue and straw are thoroughly and evenly mixed, while breaking up any clumps of soybean residue to prevent uneven cat litter production.

[0019] The crushing blades and the stirring rod rotate in opposite directions, creating a double shearing force that thoroughly breaks up clumps of soybean residue and promotes a uniform mixture of straw and soybean residue.

[0020] Furthermore, the stirring shaft has a hollow cavity inside, and an opening is formed on the surface of the stirring shaft, which is located in the feed chamber. Through holes are uniformly formed on the surface of the stirring shaft, and the through holes are located between the crushing blades. The rotation of the stirring shaft allows air to enter the hollow cavity and then enter the mixing chamber through the through holes, allowing powder additives such as corn starch to be better mixed with the raw materials.

[0021] Furthermore, powdered raw materials such as corn starch can be added to the hollow cavity inside the stirring shaft. When the stirring shaft rotates, the powdered raw materials inside are thrown into the stirring chamber under the centrifugal force and the vibration of the stirring shaft.

[0022] Furthermore, the internal through-holes are designed with venturi holes, allowing the addition of auxiliary materials such as cornstarch, which are evenly distributed through centrifugal force to enhance the clumping properties of the cat litter.

[0023] Furthermore, the crushing blades are responsible for coarse crushing, while the stirring rod refines the mixing. The counter-rotation eliminates dead zones in the mixing process and improves the uniformity of the mixture.

[0024] Furthermore, the through hole is a venturi hole, the stirring motor is mounted on the top of the housing, and the output end of the stirring motor is connected to the top of the stirring shaft.

[0025] Furthermore, the dual motors independently control the rotation direction, achieving dynamic reverse stirring and significantly improving crushing and mixing efficiency.

[0026] Furthermore, the movable screen plate is sleeved on the outer wall of the stirring shaft to separate the feeding chamber and the stirring chamber. The surface of the movable screen plate is provided with protrusions, which are evenly arranged around the axis of the movable screen plate. Screen holes are provided between adjacent protrusions. The screen holes are located on the surface of the movable screen plate. The protrusions and screen holes are used to initially break up the agglomerated raw materials and screen out suitable particles to enter the stirring chamber, avoiding bridging.

[0027] When the device is started, the raw materials first accumulate above the movable screen plate. Some of the raw materials pass directly into the mixing chamber through the screen holes, while others clump together due to their own viscosity and the pressure from the materials above, forming bridging. At this time, the movable screen plate rotates with the mixing shaft, and the protrusions on the upper surface of the movable screen plate impact the bridging raw materials, causing them to break up and pass through the screen holes into the mixing chamber. At the same time, it disturbs the raw materials in the feeding chamber, allowing the raw materials to undergo preliminary mixing and preliminary crushing of the clumps in the feeding chamber.

[0028] Furthermore, the circumferential side surface of the movable screen plate is provided with a sliding groove, the inner wall surface of the inner liner is provided with a groove, the bottom surface of the groove is provided with a protrusion, and a roller is installed on the top of the protrusion. The edge of the movable screen plate extends into the groove until the roller on the top of the protrusion presses against the bottom surface of the sliding groove, and the roller moves along the sliding groove.

[0029] Furthermore, the fixed sieve plate is fixedly connected to the inner wall of the inner liner to separate the mixing chamber from the forming chamber. It also includes a scraper connected to the bottom end of the mixing shaft. The bottom of the scraper is 3-8mm away from the upper surface of the fixed sieve plate. The scraper is set at an angle. The fixed sieve plate separates the mixing chamber from the forming chamber to ensure that the uniformly mixed raw materials enter the subsequent forming stage.

[0030] After the raw materials are crushed and mixed, they accumulate above the fixed sieve plate. At this time, the stirring rod continues to stir, further ensuring that the raw materials are mixed evenly. Simultaneously, the scraper is driven by the stirring shaft and rotates with it, stirring the raw materials below and forcing them through the sieve holes into the pressing chamber.

[0031] Furthermore, it also includes a pressure roller assembly. The outer circumferential surface of the pressure roller assembly has multiple pressing grooves. The pressure roller assembly is equipped with a pressing motor to compact the falling raw materials and output cat litter from the discharge port at the bottom of the shell. The pressure roller assembly is existing technology.

[0032] During operation, straw and soybean residue waste enter the feeding chamber through the feeding port and accumulate on the surface of the movable screen plate. The movable screen plate rotates with the stirring shaft, and its surface protrusions impact the raw materials, breaking up the clumps and allowing suitable particles to be screened through the screen holes into the stirring chamber; particles that do not pass through are further dispersed due to the rotational disturbance.

[0033] Inside the mixing chamber, the mixing shaft is driven by a mixing motor to rotate in the opposite direction to the upper rotating inner liner. This rotation causes the crushing blades and the mixing rod fixed to the inner liner to create a dual shearing force, thoroughly breaking up the clumps of soybean residue and mixing it with straw. At the same time, the hollow chamber inside the mixing shaft sprays auxiliary materials such as corn starch into the mixing chamber through venturi holes. Under the action of centrifugal force, the auxiliary materials are evenly distributed, enhancing the clumping properties of the cat litter.

[0034] Before the mixture enters the forming chamber, a fixed sieve plate isolates the mixing and forming areas. A scraper rotates with the mixing shaft to remove accumulated material from the sieve plate surface, preventing blockage. Finally, the pressure roller assembly compacts the material into uniform granular cat litter, which is then output through the discharge port.

[0035] Compared with existing technologies, this invention has the following advantages:

[0036] 1. By using counter-rotating crushing blades and stirring rods, combined with dynamic screening by a movable sieve plate, the clumps of soybean residue are thoroughly broken up, achieving a uniform mixture of straw and soybean residue.

[0037] 2. The hollow mixing shaft and venturi hole design ensure even distribution of powdered additives such as corn starch, enhancing the clumping and absorbency of the cat litter.

[0038] 3. Set up different chambers and scraper cleaning mechanisms to ensure continuous production and reduce downtime maintenance needs.

[0039] 4. Precise compaction of the pressure roller assembly and grading control of the sieve plate ensure that the cat litter particles are of consistent size and meet the compaction standards, thereby improving product stability. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in this embodiment or the prior art, the accompanying drawings used in the description of the embodiment or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 A cross-sectional view of a molding device for producing cat litter using straw and soybean residue waste.

[0042] Figure 2 for Figure 1 Enlarged view of section A in the middle;

[0043] Figure 3 for Figure 1 Enlarged view of section B;

[0044] Figure 4 for Figure 1 Enlarged view of section C;

[0045] Figure 5 This is a three-dimensional structural diagram of the movable sieve plate.

[0046] In the picture:

[0047] 1. Frame;

[0048] 2. Outer shell;

[0049] 3. Inner liner;

[0050] 4. Feed inlet;

[0051] 5. Agitator motor;

[0052] 6. Stirring shaft; 602 stainless steel; through hole;

[0053] 7. Movable sieve plate; 701. Roller; 702. Protrusion; 703. Sieve holes; 704. Slide groove;

[0054] 8. Crushing blades;

[0055] 9. Bearings;

[0056] 10. Stirring rod;

[0057] 11. Pressure roller drive motor;

[0058] 12. Pressure roller assembly;

[0059] 13. Discharge port;

[0060] 14. Rotary electric motor;

[0061] 15. Chain;

[0062] 16. Gear ring;

[0063] 17. Drive gear;

[0064] 18. Scraper;

[0065] 19. Fix the sieve plate;

[0066] 20. Sleeve. Detailed Implementation

[0067] To make the objectives, technical solutions, and advantages of this invention clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this invention.

[0068] The application principle of this invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0069] Example 1

[0070] like Figure 1-5 As shown, a molding device for producing cat litter using straw and soybean residue waste includes a frame 1;

[0071] Outer shell 2 is installed above frame 1; outer shell 2 is a hollow cavity;

[0072] The frame 1 provides stable support for the entire device, and the outer shell 2 serves as a hollow cavity to house the core stirring components, ensuring that the overall structure of the device is compact and the operation is stable. The outer shell 2 cooperates with the inner liner 3, and the rotation of the inner liner 3 is achieved through bearings, while fixing the external components to ensure the efficient operation of the dynamic components.

[0073] Inner liner 3 is nested within the hollow cavity and is rotatably connected to outer shell 2; inner liner 3 is a hollow cavity.

[0074] The sieve plate includes a movable sieve plate 7 and a fixed sieve plate 19. The sieve plate includes a movable sieve plate 7 and a fixed sieve plate 19 installed inside the inner liner 3. The movable sieve plate 7 and the fixed sieve plate 19 divide the hollow cavity of the inner liner 3 into a feeding cavity, a mixing cavity and a forming cavity.

[0075] The stirring shaft 6 is embedded in the hollow cavity of the inner liner 3 and passes through the feeding chamber and the stirring chamber.

[0076] Multiple crushing blades 8 are sleeved on the surface of the stirring shaft 6 and located above the stirring chamber;

[0077] Stirring rod 10, the ends of multiple stirring rods 10 are fixedly connected to the inner wall surface of the inner liner 3;

[0078] Sleeve 20 is fitted onto the end of stirring shaft 6 and is rotatably connected to stirring shaft 6. The outer wall of sleeve 20 is fixedly connected to the end of stirring rod 10.

[0079] The inner liner 3 includes an upper rotating inner liner and a lower fixed inner liner. The upper rotating inner liner includes a feeding chamber and a stirring chamber, and the lower fixed inner liner includes a forming chamber. Bearings are provided between the upper rotating inner liner, the lower fixed inner liner and the outer shell 2. The cavity design adapts to different processing stages and improves the overall processing efficiency.

[0080] Specifically, the upper rotating inner liner and the lower fixed inner liner are connected by roller bearings. When the upper rotating inner liner rotates, the lower fixed inner liner remains stationary. The upper rotating inner liner and the outer shell 2 are connected by cylindrical roller bearings and thrust ball bearings. When the upper rotating inner liner rotates, the outer shell 2 remains stationary.

[0081] The bottom outer wall of the upper rotating inner liner is provided with a gear ring 16, and also includes a rotating motor 14. The rotating motor 14 is mounted on the frame 1, and the output end of the rotating motor 14 is equipped with a drive gear 17. The drive gear 17 and the circumferential side surface of the gear ring 16 are wound with a chain 15.

[0082] The screen plate controls the flow of raw materials in stages. The rotational disturbance of the moving screen plate is combined with the static screening of the fixed screen plate to optimize the mixing efficiency.

[0083] During operation, the rotary motor 14 drives the drive gear 17 to rotate, which in turn drives the upper rotating inner liner to rotate via the chain 15. This causes the stirring rod 10 to rotate along the axis of the stirring shaft 6. The stirring motor 5 is then started, driving the stirring shaft 6 to rotate in the opposite direction to the rotation of the upper rotating inner liner. This causes the crushing blade 8 to rotate in the opposite direction to the stirring rod 10, forming a double crushing and stirring action. This ensures that the soybean residue and straw are thoroughly and evenly mixed, while breaking up any clumps of soybean residue to prevent uneven cat litter production.

[0084] The crushing blade 8 and the stirring rod 10 rotate in opposite directions, forming a double shearing force to thoroughly break up the clumps of soybean residue and promote the uniform mixing of straw and soybean residue.

[0085] Example 2

[0086] Based on Example 1, the stirring shaft 6 has a hollow cavity inside, and an opening is provided on the surface of the stirring shaft 6, which is located in the feed cavity. Through holes 602 are uniformly provided on the surface of the stirring shaft 6, and the through holes 602 are located between the crushing blades 8. The rotation of the stirring shaft 6 allows air to enter the hollow cavity and enter the stirring cavity through the through holes, so that powder additives such as corn starch can be better mixed with the raw materials.

[0087] Furthermore, powdered raw materials such as corn starch can be added to the hollow cavity inside the stirring shaft 6. When the stirring shaft 6 rotates, the powdered raw materials inside are thrown into the stirring chamber under the centrifugal force and the vibration of the stirring shaft 6.

[0088] The internal through-hole 602 is designed with venturi holes, allowing the addition of auxiliary materials such as cornstarch. Through centrifugal force, the materials are evenly distributed, enhancing the clumping properties of the cat litter.

[0089] The crushing blade 8 is responsible for coarse crushing, while the stirring rod 10 refines the mixing. The counter-rotation eliminates dead zones in the mixing process and improves the uniformity of the mixture.

[0090] The through hole 602 is a venturi hole. The stirring motor 5 is installed at the top of the housing 2, and the output end of the stirring motor 5 is connected to the top of the stirring shaft 6.

[0091] The dual motors independently control the rotation direction, achieving dynamic reverse stirring and significantly improving crushing and mixing efficiency.

[0092] The movable screen plate 7 is sleeved on the outer wall of the stirring shaft 6 to separate the feeding chamber and the stirring chamber. The surface of the movable screen plate 7 is provided with protrusions 702, which are evenly arranged around the axis of the movable screen plate 7. Screen holes 703 are provided between adjacent protrusions 702. The screen holes 703 are located on the surface of the movable screen plate 7. The protrusions 702 and the screen holes 703 are used to initially break up the agglomerated raw materials and screen out suitable particles to enter the stirring chamber, avoiding bridging.

[0093] When the device is started, the raw materials first accumulate above the movable screen plate 7. Some of the raw materials enter the mixing chamber directly through the screen holes 703, while some of the raw materials clump together due to their own viscosity and the pressure of the raw materials above, forming bridging. At this time, the movable screen plate 7 rotates with the stirring shaft 6, and the protrusions 702 on the upper surface of the movable screen plate 7 impact the bridging raw materials, causing them to break up and pass through the screen holes into the mixing chamber. At the same time, it disturbs the raw materials in the feeding chamber, so that the raw materials undergo preliminary mixing and preliminary crushing of the clumps in the feeding chamber.

[0094] The circumferential side surface of the movable screen plate 7 is provided with a sliding groove 704, the inner wall surface of the inner liner 3 is provided with a groove, the bottom surface of the groove is provided with a protrusion, and a roller 701 is installed on the top of the protrusion. The edge of the movable screen plate 7 extends into the groove until the roller 701 on the top of the protrusion presses against the bottom surface of the sliding groove 704, and the roller 701 moves along the sliding groove 704.

[0095] The fixed sieve plate 19 is fixedly connected to the inner wall of the inner liner 3 to separate the mixing chamber from the forming chamber. It also includes a scraper 18, which is connected to the bottom end of the mixing shaft 6. The bottom of the scraper 18 is 3-8 mm away from the upper surface of the fixed sieve plate 19. The scraper 18 is inclined. The fixed sieve plate 19 separates the mixing chamber from the forming chamber to ensure that the uniformly mixed raw materials enter the subsequent forming stage.

[0096] After the raw materials are crushed and mixed, they accumulate on the fixed screen plate. At this time, the stirring rod 10 continues to stir, further mixing the raw materials evenly. Meanwhile, the scraper 18 is driven by the stirring shaft 6 and rotates with it, stirring the material below and squeezing it through the screen holes into the pressing chamber.

[0097] It also includes a pressure roller assembly 12, which has multiple pressing grooves on its outer circumferential surface. The pressure roller assembly 12 is equipped with a pressing motor 11 to compact the falling raw materials and output cat litter from the discharge port 13 at the bottom of the housing 2.

[0098] Example 3

[0099] like Figure 1-5 As shown, a molding device for producing cat litter using straw and soybean residue waste includes a frame 1;

[0100] Outer shell 2 is installed above frame 1; outer shell 2 is a hollow cavity;

[0101] The frame 1 provides stable support for the entire device, and the outer shell 2 serves as a hollow cavity to house the core stirring components, ensuring that the overall structure of the device is compact and the operation is stable. The outer shell 2 cooperates with the inner liner 3, and the rotation of the inner liner 3 is achieved through bearings, while fixing the external components to ensure the efficient operation of the dynamic components.

[0102] Inner liner 3 is nested within the hollow cavity and is rotatably connected to outer shell 2; inner liner 3 is a hollow cavity.

[0103] The sieve plate includes a movable sieve plate 7 and a fixed sieve plate 19. The sieve plate includes a movable sieve plate 7 and a fixed sieve plate 19 installed inside the inner liner 3. The movable sieve plate 7 and the fixed sieve plate 19 divide the hollow cavity of the inner liner 3 into a feeding cavity, a mixing cavity and a forming cavity.

[0104] The stirring shaft 6 is embedded in the hollow cavity of the inner liner 3 and passes through the feeding chamber and the stirring chamber.

[0105] Multiple crushing blades 8 are sleeved on the surface of the stirring shaft 6 and located above the stirring chamber;

[0106] Stirring rod 10, the ends of multiple stirring rods 10 are fixedly connected to the inner wall surface of the inner liner 3;

[0107] Sleeve 20 is fitted onto the end of stirring shaft 6 and is rotatably connected to stirring shaft 6. The outer wall of sleeve 20 is fixedly connected to the end of stirring rod 10.

[0108] The inner liner 3 includes an upper rotating inner liner and a lower fixed inner liner. The upper rotating inner liner includes a feeding chamber and a stirring chamber, and the lower fixed inner liner includes a forming chamber. Bearings are provided between the upper rotating inner liner, the lower fixed inner liner and the outer shell 2. The cavity design adapts to different processing stages and improves the overall processing efficiency.

[0109] Specifically, the upper rotating inner liner and the lower fixed inner liner are connected by roller bearings. When the upper rotating inner liner rotates, the lower fixed inner liner remains stationary. The upper rotating inner liner and the outer shell 2 are connected by cylindrical roller bearings and thrust ball bearings. When the upper rotating inner liner rotates, the outer shell 2 remains stationary.

[0110] The bottom outer wall of the upper rotating inner liner is provided with a gear ring 16, and also includes a rotating motor 14. The rotating motor 14 is mounted on the frame 1, and the output end of the rotating motor 14 is equipped with a drive gear 17. The drive gear 17 and the circumferential side surface of the gear ring 16 are wound with a chain 15.

[0111] The screen plate controls the flow of raw materials in stages. The rotational disturbance of the moving screen plate is combined with the static screening of the fixed screen plate to optimize the mixing efficiency.

[0112] During operation, the rotary motor 14 drives the drive gear 17 to rotate, which in turn drives the upper rotating inner liner to rotate via the chain 15. This causes the stirring rod 10 to rotate along the axis of the stirring shaft 6. The stirring motor 5 is then started, driving the stirring shaft 6 to rotate in the opposite direction to the rotation of the upper rotating inner liner. This causes the crushing blade 8 to rotate in the opposite direction to the stirring rod 10, forming a double crushing and stirring action. This ensures that the soybean residue and straw are thoroughly and evenly mixed, while breaking up any clumps of soybean residue to prevent uneven cat litter production.

[0113] The crushing blade 8 and the stirring rod 10 rotate in opposite directions, forming a double shearing force to thoroughly break up the clumps of soybean residue and promote the uniform mixing of straw and soybean residue.

[0114] The stirring shaft 6 has a hollow cavity inside. An opening is provided on the surface of the stirring shaft 6, and the opening is located in the feed chamber. Through holes 602 are uniformly provided on the surface of the stirring shaft 6, and the through holes 602 are located between the crushing blades 8. The rotation of the stirring shaft 6 allows air to enter the hollow cavity and enter the mixing chamber through the through holes, so that powder additives such as corn starch can be better mixed with the raw materials.

[0115] Furthermore, powdered raw materials such as corn starch can be added to the hollow cavity inside the stirring shaft 6. When the stirring shaft 6 rotates, the powdered raw materials inside are thrown into the stirring chamber under the centrifugal force and the vibration of the stirring shaft 6.

[0116] The internal through-hole 602 is designed with venturi holes, allowing the addition of auxiliary materials such as cornstarch. Through centrifugal force, the materials are evenly distributed, enhancing the clumping properties of the cat litter.

[0117] The crushing blade 8 is responsible for coarse crushing, while the stirring rod 10 refines the mixing. The counter-rotation eliminates dead zones in the mixing process and improves the uniformity of the mixture.

[0118] The through hole 602 is a venturi hole. The stirring motor 5 is installed at the top of the housing 2, and the output end of the stirring motor 5 is connected to the top of the stirring shaft 6.

[0119] The dual motors independently control the rotation direction, achieving dynamic reverse stirring and significantly improving crushing and mixing efficiency.

[0120] The movable screen plate 7 is sleeved on the outer wall of the stirring shaft 6 to separate the feeding chamber and the stirring chamber. The surface of the movable screen plate 7 is provided with protrusions 702, which are evenly arranged around the axis of the movable screen plate 7. Screen holes 703 are provided between adjacent protrusions 702. The screen holes 703 are located on the surface of the movable screen plate 7. The protrusions 702 and the screen holes 703 are used to initially break up the agglomerated raw materials and screen out suitable particles to enter the stirring chamber, avoiding bridging.

[0121] When the device is started, the raw materials first accumulate above the movable screen plate 7. Some of the raw materials enter the mixing chamber directly through the screen holes 703, while some of the raw materials clump together due to their own viscosity and the pressure of the raw materials above, forming bridging. At this time, the movable screen plate 7 rotates with the stirring shaft 6, and the protrusions 702 on the upper surface of the movable screen plate 7 impact the bridging raw materials, causing them to break up and pass through the screen holes into the mixing chamber. At the same time, it disturbs the raw materials in the feeding chamber, so that the raw materials undergo preliminary mixing and preliminary crushing of the clumps in the feeding chamber.

[0122] The circumferential side surface of the movable screen plate 7 is provided with a sliding groove 704, the inner wall surface of the inner liner 3 is provided with a groove, the bottom surface of the groove is provided with a protrusion, and a roller 701 is installed on the top of the protrusion. The edge of the movable screen plate 7 extends into the groove until the roller 701 on the top of the protrusion presses against the bottom surface of the sliding groove 704, and the roller 701 moves along the sliding groove 704.

[0123] The fixed sieve plate 19 is fixedly connected to the inner wall of the inner liner 3 to separate the mixing chamber from the forming chamber. It also includes a scraper 18, which is connected to the bottom end of the mixing shaft 6. The bottom of the scraper 18 is 3-8 mm away from the upper surface of the fixed sieve plate 19. The scraper 18 is inclined. The fixed sieve plate 19 separates the mixing chamber from the forming chamber to ensure that the uniformly mixed raw materials enter the subsequent forming stage.

[0124] After the raw materials are crushed and mixed, they accumulate on the fixed screen plate. At this time, the stirring rod 10 continues to stir, further mixing the raw materials evenly. Meanwhile, the scraper 18 is driven by the stirring shaft 6 and rotates with it, stirring the material below and squeezing it through the screen holes into the pressing chamber.

[0125] It also includes a pressure roller assembly 12, which has multiple pressing grooves on its outer circumferential surface. The pressure roller assembly 12 is equipped with a pressing motor 11 to compact the falling raw materials and output cat litter from the discharge port 13 at the bottom of the housing 2.

[0126] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

[0127] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A molding device for producing cat litter using straw and soybean residue waste, characterized in that: Including the frame (1); The outer shell (2) is mounted above the frame (1); the outer shell (2) is a hollow cavity; Inner liner (3), which is nested in the hollow cavity, and is rotatably connected to the outer shell (2); the inner liner (3) is a hollow cavity. The sieve plate includes a movable sieve plate (7) and a fixed sieve plate (19). The movable sieve plate (7) and the fixed sieve plate (19) are installed inside the inner liner (3). The movable sieve plate (7) and the fixed sieve plate (19) divide the hollow cavity of the inner liner (3) into a feeding cavity, a stirring cavity and a forming cavity. A stirring shaft (6) is embedded in the hollow cavity of the inner liner (3) and passes through the feeding chamber and the stirring chamber. Crushing blades (8), a plurality of the crushing blades (8) are sleeved on the surface of the stirring shaft (6) and located above the stirring chamber; Stirring rods (10), the ends of multiple stirring rods (10) are fixedly connected to the inner wall surface of the inner liner (3); A sleeve (20) is fitted onto the end of the stirring shaft (6). The sleeve (20) is rotatably connected to the stirring shaft (6). The outer wall of the sleeve (20) is fixedly connected to the end of the stirring rod (10).

2. The molding device for producing cat litter using straw and soybean residue waste according to claim 1, characterized in that: The inner liner (3) includes an upper rotating inner liner and a lower fixed inner liner. The upper rotating inner liner includes a feeding chamber and a stirring chamber. The lower fixed inner liner includes a forming chamber. The upper rotating inner liner, the lower fixed inner liner and the outer shell (2) are connected by bearings.

3. The molding device for producing cat litter using straw and soybean residue waste according to claim 2, characterized in that: The upper rotating inner liner is provided with a gear ring (16) on the bottom outer wall surface, and also includes a rotating motor (14). The rotating motor (14) is mounted on the frame (1). The output end of the rotating motor (14) is equipped with a drive gear (17). The drive gear (17) and the circumferential side surface of the gear ring (16) are wound with a chain (15).

4. The molding device for producing cat litter using straw and soybean residue waste according to claim 1, characterized in that: The stirring shaft (6) has a hollow cavity inside. An opening is provided on the surface of the stirring shaft (6) and the opening is located in the feed cavity. The opening is used to convey auxiliary materials into the hollow cavity. Through holes (602) are uniformly provided on the surface of the stirring shaft (6) and the through holes (602) are located between the crushing blades (8).

5. The molding device for producing cat litter using straw and soybean residue waste according to claim 4, characterized in that: The through hole (602) is a venturi hole, and also includes a stirring motor (5). The stirring motor (5) is installed on the top of the housing (2), and the output end of the stirring motor (5) is connected to the top of the stirring shaft (6).

6. The molding device for producing cat litter using straw and soybean residue waste according to claim 1, characterized in that: The movable sieve plate (7) is sleeved on the outer wall of the stirring shaft (6) to separate the feeding chamber and the stirring chamber. The surface of the movable sieve plate (7) is provided with protrusions (702), which are evenly arranged around the axis of the movable sieve plate (7). A sieve hole (703) is provided between adjacent protrusions (702), and the sieve hole (703) is located on the surface of the movable sieve plate (7).

7. The molding device for producing cat litter using straw and soybean residue waste according to claim 6, characterized in that: The circumferential side surface of the movable sieve plate (7) is provided with a sliding groove (704), the inner wall surface of the inner liner (3) is provided with a groove, the bottom surface of the groove is provided with a protrusion, and a roller (701) is installed on the top of the protrusion. The edge of the movable sieve plate (7) extends into the groove until the roller (701) on the top of the protrusion presses against the bottom surface of the sliding groove (704), and the roller (701) moves along the sliding groove (704).

8. The molding device for producing cat litter using straw and soybean residue waste according to claim 1, characterized in that: The fixed sieve plate (19) is fixedly connected to the inner wall of the inner liner (3) to separate the stirring chamber from the forming chamber.

9. A molding device for producing cat litter using straw and soybean residue waste according to claim 8, characterized in that: It also includes a scraper (18), which is connected to the bottom end of the stirring shaft (6). The bottom of the scraper (18) is 3-8 mm away from the upper surface of the fixed sieve plate (19), and the scraper (18) is inclined.

10. A molding device for producing cat litter using straw and soybean residue waste according to claim 1, characterized in that: It also includes a pressure roller assembly (12), which has multiple pressing grooves on its outer circumferential surface.

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