A type of freeze-drying granulation equipment

Abstract

This utility model relates to the field of freeze-drying granulation technology, and more particularly to an irregularly shaped freeze-drying granulation device. It includes support legs, with a shell fixedly connected to the top of the four support legs. A mixing tank is fixedly connected to the top of the shell, and a feed inlet is fixedly connected to the top of the mixing tank. A discharge outlet is located on one side of the shell. Inside the shell, there is a metering mechanism for feeding irregularly shaped granules, a forming mechanism for extruding irregularly shaped granules, and a cleaning mechanism for cleaning the conveyor belt. This utility model ensures maximum utilization of raw materials and surface cleaning of the conveyor belt through baffles and arc-shaped scrapers. The automatic cleaning mechanism at the bottom of the conveyor belt ensures cleanliness and hygiene, prevents bacterial and mold growth in the feed, and reduces food safety risks caused by unclean equipment.

Description

Technical Field

[0001] This utility model relates to the field of freeze-drying granulation technology, and in particular to a shaped freeze-drying granulation device. Background Technology

[0002] Freeze-drying pelleting equipment is a key piece of equipment in pet food production. The equipment compresses mixed raw materials into pellets of a specific shape to meet the chewing and digestion needs of pets. Traditional pelleting equipment mainly consists of modules such as mixing, pelleting (extrusion or pressing), and drying. Pellet forming is completed through a screw extruder, mold, and cutting blades, followed by low-temperature quick-freezing, baking, and final packaging. With the development of the times, the research and development focus of irregular-shaped freeze-drying pelleting equipment has shifted more towards the nutritional and food form requirements of pets, with more demands on the appearance and shape of pet food.

[0003] In existing equipment, some raw materials often remain in the grooves of the demolding and granulation process. These materials not only reduce the utilization rate of raw materials but may also lead to a decrease in equipment operating efficiency. More seriously, these residues are prone to the growth of bacteria and mold, creating hygiene hazards. Over time, the proliferation of these microorganisms can contaminate newly produced pet food and affect the health of pets. In addition, cleaning these residues in the grooves requires a lot of manpower and time, increasing production costs. To address the above problems, we provide a shaped freeze-drying granulation equipment. Utility Model Content

[0004] In order to overcome the shortcomings of conventional equipment in the prior art, such as low raw material utilization rate and raw material residue that leads to hygiene hazards in pet food, this utility model provides a shaped freeze-drying granulation equipment.

[0005] A shaped freeze-drying granulation device includes support legs, a shell, and a mixing tank. The top of the four support legs is fixedly connected to the shell, and the mixing tank is fixedly connected to the top of the shell. A feeding trough is opened on the top of the mixing tank, and a feeding port is fixedly connected to the feeding trough. A discharge port is provided on one side of the shell. A metering mechanism for feeding shaped granules is provided inside the shell. The metering mechanism includes a drive motor, which is installed on one side of the shell. A first rotating shaft is rotatably connected to the inner wall of the mixing tank, and one end of the first rotating shaft extends to the outside of the mixing tank. The output end of the drive motor is fixedly connected to one end of the first rotating shaft. Several stirring rods are fixedly connected to the outer wall of the first rotating shaft. The shell also includes a forming mechanism for extruding shaped granules and a cleaning mechanism for collecting residues.

[0006] Optionally, the metering mechanism also includes a guide frame. A feeding trough is provided at the bottom of the mixing tank, and a guide frame is fixedly connected to the feeding trough. A feeding column is rotatably connected to the bottom of the guide frame. A feeding trough is symmetrically provided on the outer wall of the feeding column. A first gear is fixedly connected to both ends of the feeding column. The first gear is located outside the guide frame. A second rotating shaft is rotatably connected to the inner side of the outer shell. A first transmission belt is connected between the second rotating shaft and the first rotating shaft through a pulley. A second gear is symmetrically fixed to the outer wall of the second rotating shaft. The two second gears mesh with the two first gears respectively.

[0007] Optionally, the guide frame includes a baffle plate, with several rectangular slots through one side of the baffle plate. A rotating shaft is rotatably connected to each of the rectangular slots of the baffle plate, and a rotating plate is fixed to the outer wall of the rotating shaft. Several first conical guide blocks are fixed to the side of the baffle plate near the material discharge column.

[0008] Optionally, the cleaning mechanism includes a collection box, a through groove at the bottom of the outer casing, a detachable collection box below the through groove, a cleaning column fixedly connected to the through groove, the cleaning column abutting against the collection box and located directly above the collection box, a cleaning brush fixedly connected to the top of the cleaning column, and the top of the cleaning brush contacting the surface of the conveyor belt.

[0009] Optionally, the forming mechanism includes a third rotating shaft, which is rotatably connected to the inner side of the outer shell. The third rotating shaft is connected to the second rotating shaft via a conveyor belt. The conveyor belt has several irregular grooves. A support frame is fixed inside the outer shell and is located in the gap between the inner walls of the conveyor belt. A first forming roller and a second forming roller located above the conveyor belt are rotatably connected to the support frame. A second transmission belt is connected between the first forming roller and the second rotating shaft. A third transmission belt is connected between the first forming roller and the second forming roller. Several irregular protrusions are provided on the outer walls of the first forming roller and the second forming roller. The irregular protrusions cooperate with the irregular grooves of the transmission belt to extrude and shape the irregular particles. A baffle is fixed to the inner wall of the support frame between the first forming roller and the second forming roller. The baffle includes an arc-shaped scraper and a second conical guide block. Several second conical guide blocks are fixed to one side of the arc-shaped scraper.

[0010] Optionally, it also includes a vibration shaft, which is rotatably connected to the inner wall of the housing and passes through the conveyor belt, contacting the bottom of the upper layer of the conveyor belt. The outer wall of the vibration shaft is provided with several spherical protrusions, and a fourth transmission belt is connected between the vibration shaft and the third rotating shaft.

[0011] Optionally, a cooling chamber is fixed to the inner wall of the outer casing, a conveyor belt passes through the cooling chamber, and the air outlet of the cooling chamber is located above the conveyor belt.

[0012] The beneficial effects of this utility model are:

[0013] This invention ensures maximum utilization of raw materials and cleans the surface of the conveyor belt through baffles and arc-shaped scrapers; the automatic cleaning mechanism at the bottom of the conveyor belt ensures cleanliness and hygiene, preventing bacteria and mold growth in feed that could cause hygiene hazards and affect the health of pets. It not only reduces the amount of manual cleaning work, but also lowers the food safety risks caused by unclean equipment.

[0014] This invention ensures the molding quality of irregularly shaped particles and enables better subsequent complete demolding through extrusion molding and cooling treatment by the first and second molding rollers; the vibration design of the vibration shaft effectively realizes the complete demolding of irregularly shaped particles, improves production efficiency, reduces manual intervention in demolding, and also reduces the intensity of manual labor. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional structural diagram of the quantitative mechanism of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the molding mechanism of this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the guide frame of this utility model;

[0019] Figure 5 This is a partial structural schematic diagram of the molding mechanism of this utility model;

[0020] Figure 6 This is a three-dimensional structural diagram of the baffle of this utility model;

[0021] Figure 7 This is a three-dimensional structural diagram of the cleaning mechanism of this utility model;

[0022] Figure 8 This is a three-dimensional structural diagram of the first conical guide block of this utility model.

[0023] The markings in the attached diagram are as follows: 1_support leg, 2_outer shell, 3_mixing tank, 4_feed inlet, 5_drive motor, 6_pulley, 7_first rotating shaft, 71_stirring rod, 8_first transmission belt, 9_discharge column, 91_first gear, 10_guide frame, 101_baffle plate, 102_first conical guide block, 103_rotating shaft, 104_rotating plate, 11_second rotating shaft, 111_second gear, 12_convex belt, 13_second transmission belt, 14_first forming roller, 15_third transmission belt, 16_second forming roller, 17_baffle, 171_second conical guide block, 172_arc scraper, 18_support frame, 19_third rotating shaft, 20_vibration shaft, 201_spherical protrusion, 21_fourth transmission belt, 22_cleaning column, 221_cleaning brush, 23_collection box, 24_cooling chamber, 25_discharge port. Detailed Implementation

[0024] The present invention will now be described more fully below with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. However, the present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness and to fully convey the scope of the invention to those skilled in the art. Example

[0025] An irregularly shaped freeze-drying granulation device, such as Figures 1-8 As shown, the device includes support legs 1, outer shell 2, and mixing tank 3. The tops of the four support legs 1 are all fixed to the outer shell 2, and the mixing tank 3 is fixed to the top of the outer shell 2. The top of the mixing tank 3 has a feeding trough, and a feeding port 4 is fixed above the feeding trough. The outer shell 2 has a discharge port 25 on the side away from the mixing tank 3. The inner side of the outer shell 2 is equipped with a metering mechanism for feeding irregularly shaped particles. The metering mechanism includes a drive motor 5, which is installed on one side of the outer shell 2. The inner wall of the mixing tank 3 is rotatably connected to a first rotating shaft 7, and one end of the first rotating shaft 7 extends to the outside of the mixing tank 3. The output end of the drive motor 5 is fixed to one end of the first rotating shaft 7. Several stirring rods 71 ​​are fixed to the outer wall of the first rotating shaft 7. The drive motor 5 drives the stirring rods 71 ​​to stir the raw materials, which effectively avoids the problem of raw material blockage and ensures the smooth flow of raw materials. This not only improves production efficiency but also reduces production interruptions caused by blockage, providing a strong guarantee for continuous production. The outer shell 2 is also equipped with a forming mechanism for extruding irregularly shaped particles and a cleaning mechanism for collecting residues.

[0026] The quantitative mechanism also includes a guide frame 10. A feeding trough is provided at the bottom of the mixing tank 3. The guide frame 10 is fixedly connected to the outside of the feeding trough of the mixing tank 3. A feeding column 9 is rotatably connected to the side of the guide frame 10. A loading trough is symmetrically provided on the outer wall of the feeding column 9. The loading trough is used to fill raw materials. A first gear 91 is fixedly connected to both ends of the feeding column 9. The first gear 91 is located outside the guide frame 10. A second rotating shaft 11 is rotatably connected to the inner side of the outer shell 2. A first transmission belt 8 is connected between the second rotating shaft 11 and the first rotating shaft 7 through a pulley 6. A second gear 111 is symmetrically fixedly connected to the outer wall of the second rotating shaft 11. The two second gears 111 mesh with the two first gears 91 respectively.

[0027] The guide frame 10 includes a baffle plate 101. Several rectangular slots are provided through one side of the baffle plate 101. Rotating shafts 103 are rotatably connected to the rectangular slots of the baffle plate 101. A rotating plate 104 is fixed to the outer wall of the rotating shaft 103. The rotating plate 104 and the rotating shaft 103 can rotate at the rectangular slots of the baffle plate 101, which can scrape the feed after feeding, making it easier for subsequent molding. Several first conical guide blocks 102 are fixed to the side of the baffle plate 101 near the feeding column 9. The first conical guide blocks 102 can separate the feed on the conveyor belt 12, making it easier to guide the feed into the irregular groove.

[0028] The forming mechanism includes a third rotating shaft 19, which is rotatably connected to the inner side of the outer casing 2. The third rotating shaft 19 and the second rotating shaft 11 are connected by a conveyor belt 12. Both the third rotating shaft 19 and the second rotating shaft 11 are equipped with gears. The inner wall of the conveyor belt 12 has several slots, and the gears on the third rotating shaft 19 and the second rotating shaft 11 are connected to the slots on the conveyor belt 12. The conveyor belt 12 has several irregular grooves. A support frame 18 is fixedly connected inside the outer casing 2, and the support frame 18 is located in the gap of the inner wall of the conveyor belt 12. The top of the support frame 18 is attached to the bottom of the upper layer of the conveyor belt 12. A first forming roller 14 and a second forming roller 15 located above the conveyor belt 12 are rotatably connected to the support frame 18. The outer walls of the two forming rollers 16, the first forming roller 14, and the second forming roller 16 are provided with several irregular protrusions. The irregular protrusions of the first forming roller 14 and the second forming roller 16 cooperate with the irregular grooves of the conveyor belt 12 to extrude the raw material into irregular granules. A second transmission belt 13 is connected between the first forming roller 14 and the second rotating shaft 11. A third transmission belt 15 is connected between the first forming roller 14 and the second forming roller 16. A baffle 17 is fixedly connected to the inner wall of the support frame 18 between the first forming roller 14 and the second forming roller 16. An arc-shaped scraper 172 that contacts the top of the conveyor belt 12 is fixedly connected to the lower part of the baffle 17. Several second conical guide blocks 171 are fixedly connected to one side of the arc-shaped scraper 172.

[0029] A vibration shaft 20 is rotatably connected to the inner wall of the outer casing 2. The vibration shaft 20 is located inside the conveyor belt 12. Several spherical protrusions 201 are provided on the outer wall of the vibration shaft 20. The spherical protrusions 201 are in contact with the bottom of the upper layer of the conveyor belt 12. A fourth transmission belt 21 is connected between the vibration shaft 20 and the third rotating shaft 19.

[0030] The cleaning mechanism includes a cleaning column 22 and a collection box 23. A through groove is provided at the bottom of the outer casing 2, and a detachable collection box 23 is provided below the through groove of the outer casing 2. The cleaning column 22 is fixedly connected to the through groove of the outer casing 2, and a cleaning brush 221 is fixedly connected to the top of the cleaning column 22. The top of the cleaning brush 221 contacts the surface of the conveyor belt 12. The cleaning column 22 abuts against the collection box 23, and the cleaning column 22 is located directly above the collection box 23, which facilitates the smooth falling of the residue cleaned from the conveyor belt 12 into the collection box 23.

[0031] A cooling chamber 24 is fixed to the inner wall of the outer shell 2. The conveyor belt 12 passes through the cooling chamber 24. The cooling chamber 24 uses cold air to cool the irregularly shaped particles formed by the conveyor belt 12, making it easier to demold the irregularly shaped particles.

[0032] Working principle: During use, the worker pours the raw materials into the mixing tank 3 through the feed inlet 4, turns on the drive motor 5, and the output shaft of the drive motor 5 drives the first rotating shaft 7 to rotate. The first rotating shaft 7 drives several stirring rods 71 ​​to rotate, which stirs the raw materials, allowing them to move smoothly to the discharge trough of the mixing tank 3 and preventing them from clogging inside the mixing tank 3. The first rotating shaft 7 drives the pulley 6 to rotate, which in turn drives the second rotating shaft 11 to rotate. The second gear 111 on the second rotating shaft 11 meshes with the first gear 91 of the discharge column 9, causing the discharge column 9 to rotate. Through the rotation of the discharge column 9, the raw materials in the loading trough on the discharge column 9 are poured onto the conveyor belt 12. During the conveying process of the conveyor belt 12, the first conical shape fixed on the baffle plate 101... The guide block 102 guides the raw material on the conveyor belt 12 into the shaped groove. The rotating plate 104 fixed to the outside of the baffle plate 101 rotates via the rotating shaft 103. When the raw material passes through the rotating plate 104, the rotating plate 104 scrapes the raw material on the conveyor belt 12 by rotating via the rotating shaft 103, so that the raw material in each shaped groove is quantitatively conveyed on the conveyor belt 12. The first conical guide block 102 and the rotating plate 104 on the baffle plate 101 can achieve preliminary cleaning of the raw material on the conveyor belt 12 and reduce the waste of raw material. When the raw material is conveyed to the bottom of the first forming roller 14 via the conveyor belt 12, the shaped protrusion of the first forming roller 14, the shaped groove of the conveyor belt 12 and the support frame 18 cooperate to achieve the first extrusion molding of the raw material. At this time, in addition to the raw material on the conveyor belt 12, the raw material is also extruded. Besides the material residue in the original vertical gaps of the shaped groove, there is also material squeezed out of the shaped groove by the first forming roller 14. Conveyed by the conveyor belt 12, the residual material and the extruded material reach the baffle 17. The second conical guide block 171 guides the residual material on the conveyor belt 12 to both sides of the second conical guide block 171 through its conical tip. The arc-shaped scraper 172 scrapes the residual material and the extruded material into the shaped groove, thus cleaning the material residue on the surface of the conveyor belt 12. The semi-formed shaped particles in the shaped groove undergo a second extrusion forming by the second forming roller 16. The formed shaped particles are then conveyed to the cooling chamber 24 by the conveyor belt 12. The cooling chamber 24 cools and shapes the shaped particles, making demolding easier and more complete. After being shaped, the irregularly shaped pellets are conveyed by the conveyor belt 12 to the top of the vibrating shaft 20. At this time, the vibrating shaft 20 drives the spherical protrusions 201 to vibrate the conveyor belt 12. Under the vibration of the vibrating shaft 20, the irregularly shaped pellets are demolded in the irregularly shaped groove of the conveyor belt 12. After demolding, the irregularly shaped pellets are discharged through the discharge port 25 as the conveyor belt 12 rotates. To prevent residual feed from remaining on the surface of the irregularly shaped groove and the conveyor belt 12 after demolding, the cleaning mechanism will further clean the conveyor belt 12. Through the transmission of the conveyor belt 12 itself, the cleaning brush 221 fixed to the upper part of the cleaning column 22 will realize the automatic cleaning of the conveyor belt 12. The residue cleaned from the irregularly shaped groove and the surface of the conveyor belt 12 will automatically fall into the collection box 23.Workers can add the cleaned-up residue to the mixing tank 3 for secondary use. This not only keeps the conveyor belt 12 clean and hygienic, preventing feed hygiene problems, but also maximizes the utilization rate of raw materials and reduces production costs.

[0033] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.

Claims

1. A shaped freeze-drying granulation device, comprising support legs (1), a shell (2), and a mixing tank (3), wherein the top of the four support legs (1) is fixedly connected to the shell (2), the top of the shell (2) is fixedly connected to the mixing tank (3), the top of the mixing tank (3) is fixedly connected to the feed inlet (4), and a discharge outlet (25) is provided on one side of the shell (2), characterized in that: The shell (2) is equipped with a metering mechanism for feeding irregularly shaped particles. The metering mechanism includes a drive motor (5). The inner wall of the mixing tank (3) is rotatably connected to a first rotating shaft (7). The output end of the drive motor (5) is fixedly connected to one end of the first rotating shaft (7). Several stirring rods (71) are fixedly connected to the outer wall of the first rotating shaft (7). The shell (2) is also equipped with a forming mechanism for extruding irregularly shaped particles and a cleaning mechanism for collecting residue.

2. A shaped lyophilization granulation apparatus as defined in claim 1, wherein: The quantitative mechanism also includes a guide frame (10). The bottom of the mixing tank (3) is fixedly connected to the guide frame (10). The side of the guide frame (10) is movably connected to the feeding column (9). The outer wall of the feeding column (9) is symmetrically provided with a loading groove. Both ends of the feeding column (9) are fixedly connected to the first gear (91). The first gear (91) is located outside the guide frame (10). The inner side of the outer shell (2) is rotatably connected to the second shaft (11). The second shaft (11) and the first shaft (7) are connected by a first transmission belt (8) through a pulley (6). The outer wall of the second shaft (11) is symmetrically fixedly connected to the second gear (111). The two second gears (111) mesh with the two first gears (91) respectively.

3. A freeze-drying and granulating apparatus according to claim 2, wherein: The guide frame (10) includes a baffle plate (101), a rotating shaft (103) is rotatably connected inside the baffle plate (101), a rotating plate (104) is fixed to the outer wall of the rotating shaft (103), and a number of first conical guide blocks (102) are fixed to the baffle plate (101).

4. A shaped lyophilization granulation apparatus as defined in claim 2, wherein: The forming mechanism includes a third rotating shaft (19) and a conveyor belt (12). The third rotating shaft (19) is rotatably connected to the inside of the outer shell (2). The third rotating shaft (19) and the second rotating shaft (11) are connected by transmission through the conveyor belt (12). Several irregular grooves are opened on the conveyor belt (12). A support frame (18) is fixed inside the outer shell (2) and is located in the gap of the inner wall of the conveyor belt (12). A support frame (18) is rotatably connected to the support frame (18) above the conveyor belt (12). The first forming roller (14) and the second forming roller (16) are provided with several irregular protrusions on their outer walls. A second transmission belt (13) is connected between the first forming roller (14) and the second rotating shaft (11). A third transmission belt (15) is connected between the first forming roller (14) and the second forming roller (16). A baffle (17) located between the first forming roller (14) and the second forming roller (16) is fixed to the inner wall of the support frame (18).

5. A freeze-drying and granulating apparatus according to claim 4, wherein: The lower part of the baffle (17) is provided with an arc-shaped scraper (172), and several second conical guide blocks (171) are fixedly connected to one side of the arc-shaped scraper (172).

6. A shaped lyophilization granulation apparatus as defined in claim 4, wherein: The cleaning mechanism includes a collection box (23) and a cleaning column (22). A through groove is provided at the bottom of the outer shell (2). The collection box (23) is located below the through groove of the outer shell (2). The cleaning column (22) is located at the through groove on the inner side of the outer shell (2). The cleaning column (22) abuts against the collection box (23). A cleaning brush (221) is fixed to the top of the cleaning column (22). The top of the cleaning brush (221) contacts the surface of the conveyor belt (12).

7. A shaped lyophilization granulation apparatus as defined in claim 6, wherein: It also includes a vibration shaft (20), a fourth transmission belt (21) is connected between the vibration shaft (20) and the third rotating shaft (19), the vibration shaft (20) is rotatably connected to the inner wall of the outer shell (2) and passes through the conveyor belt (12), and the outer wall of the vibration shaft (20) is provided with several spherical protrusions (201), which are in contact with the bottom of the upper layer of the conveyor belt (12).

8. The irregular-shaped freeze-drying granulation equipment according to claim 7, characterized in that: A cooling chamber (24) is fixed to the inner wall of the outer shell (2), and a conveyor belt (12) passes through the cooling chamber (24).

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