Edible animal fat melting device

Abstract

The application belongs to the technical field of animal fat processing, and discloses an edible animal fat melting device, which comprises a protective shell, the front end of the protective shell is provided with a front shell, the top end of the front shell is provided with a rail lock connected with the protective shell, the inside of the protective shell is provided with a fat processing assembly, the fat processing assembly is provided with a splitting knife fixedly connected with the protective shell, and the lower part of the fat processing assembly is provided with an oil storage tank located in the inside of the protective shell. The splitting knife arranged at equal intervals in a cross shape is matched with a pressing plate with a knife groove, so that the problem of uneven heating of the whole raw material and incomplete melting of the inside of the whole raw material during the melting process of the large fat is solved, the steam circulation heating, the fixed-point high-temperature heating of the splitting knife and the steam communication pipe are matched, the heating efficiency of the fat is further improved, the primary filtration of the filter plate is matched with the secondary stirring and filtration structure of the oil filter drum and the oil stirring plate, double-layer fine filtration of the fat is realized, and the separation type melting of the oil residue and the clean oil is realized.

Description

Technical Field

[0001] This invention belongs to the field of animal fat processing technology, specifically a melting device for edible animal fats. Background Technology

[0002] Edible animal fats, such as lard, beef tallow, and mutton tallow, are commonly used raw materials in food processing and daily cooking. Their quality directly affects the taste and safety of food. Animal fat processing mainly relies on melting equipment to cut, heat and melt, filter and purify animal fat raw materials to finally obtain pure edible oils.

[0003] Existing patent 1: Application number CN202410479823.0 describes an animal fat melting device with a preheating function. This solution first places the animal fat to be melted into the preheating box mechanism. At this time, the molten animal fat will flow out, and larger impurities will be blocked by the adjusting baffle mechanism. The molten animal fat will fall into the melting box mechanism. At this time, the filter screen baffle mechanism to be filtered is placed into the baffle installation mechanism. However, animal fat is generally in whole pieces. If it is melted directly without being cut, the large pieces of fat will be heated unevenly, and it is easy to have the outside burnt and the inside not melted. Moreover, during the filtration process, the filter screen is easily blocked by residue, and the flow of fat is not smooth.

[0004] Existing patent 2: An animal fat crushing and melting device with application number CN202610245950.3. In this scheme, the raw material crushed by the crushing component enters the centrifuge barrel inside the frame. At this time, the heater inside the frame will continuously heat the raw material inside the primary separation screen. As heating proceeds, the centrifuge barrel begins to rotate. At this time, because the heated raw material precipitates oil, its volume decreases. After decreasing in size, the raw material will pass through the primary separation screen to the gap between the primary and secondary separation screens and be temporarily stored there. At this time, under the action of centrifugal force, the precipitated oil will pass through the secondary separation screen to the first oil storage space. However, during the melting process, the oil residue and the clear oil are mixed together. During continuous heating, the gelatinization of the oil residue may affect the quality of the clear oil.

[0005] In summary, traditional animal fat melting equipment often uses solid fat raw materials during actual processing. Direct heating and melting results in low efficiency, uneven heating of large fat pieces, and a tendency for the outer layer to burn while the inner layer remains unmelted. Additionally, the filter structure is easily clogged by the accumulation of raw materials, and the mixing of oil residue and clear oil during melting can lead to gelatinization of the oil residue, which can negatively impact the quality of the clear oil. Summary of the Invention

[0006] The purpose of this invention is to provide an apparatus for melting edible animal fats to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an edible animal fat melting device, comprising a protective shell, a front shell at the front end of the protective shell, a railing latch at the top of the front shell connected to the protective shell, an oil processing assembly inside the protective shell, a slitting blade fixedly connected to the protective shell inside the oil processing assembly, an oil storage tank located inside the protective shell below the oil processing assembly, a drive assembly located inside the front shell in front of the oil processing assembly, a front cover bolted to the front end of the front shell, a steam input pipe fixedly connected to the rear end of the protective shell, a steam connecting pipe fixedly connected to the bottom end of the slitting blade, the steam connecting pipe communicating with the protective shell, and a steam discharge port connected to the steam connecting pipe at the front end of the front shell;

[0008] The grease treatment assembly includes two connecting side plates arranged symmetrically from left to right. A pressure plate is provided between the two connecting side plates and above the cutting blade. A fixing frame is provided between the two connecting side plates and below the steam connecting pipe. A filter plate is fixedly connected inside the fixing frame. An oil filter tank is provided below the filter plate. An oil tilting plate is rotatably connected inside the oil filter tank. A scraper is provided at the top of the filter plate. The front end of the scraper passes through the front end of the fixing frame and slides left and right with the fixing frame.

[0009] Furthermore, the drive assembly includes a housing fixedly installed at the front end of the fixed frame. The housing is located inside the front shell and is slidably disposed vertically with the front shell. A vertical rack is provided at the left end of the housing. The upper and lower ends of the vertical rack are fixedly connected to the inner wall of the front shell, and the vertical rack is slidably disposed vertically with the housing.

[0010] Furthermore, a connecting shaft is provided inside the outer casing and on the right side of the vertical rack, and the rear end of the connecting shaft extends into the interior of the fixed frame and is fixedly connected to the oil-turning plate.

[0011] Furthermore, a worm gear is fixedly connected to the front end of the connecting shaft, and a first gear that meshes with a vertical rack is provided at the rear end of the worm gear. The first gear is mounted on the connecting shaft, and a second gear is provided at the rear end of the first gear. The second gear is mounted on the connecting shaft.

[0012] Furthermore, the top of the second gear is engaged with a transverse rack, the top of the transverse rack is fixedly connected to a scraper, and a limiting slide rod is slidably connected inside the transverse rack, the limiting slide rod being fixedly connected to the outer shell.

[0013] Furthermore, a servo motor is disposed inside the housing and above the worm gear. The servo motor is fixedly connected to the housing, and a worm is fixedly connected to the transmission end of the servo motor. The worm meshes with the worm gear.

[0014] Furthermore, a U-shaped interlayer is provided at the rear end of the protective shell, and the U-shaped interlayer is connected to the steam input pipe and the steam connecting pipe.

[0015] Furthermore, the slitting blade includes multiple transverse conical blades and multiple longitudinal conical blades, wherein the multiple transverse conical blades and the multiple longitudinal conical blades are arranged in a cross shape and at equal intervals.

[0016] Furthermore, the bottom end of the pressure plate is provided with a groove adapted to the transverse conical blade and the longitudinal conical blade.

[0017] Furthermore, the top of the oil storage tank is V-shaped, and the top of the oil storage tank has an arc-shaped opening adapted to the oil filter barrel.

[0018] The beneficial effects of this invention are as follows:

[0019] 1. This invention uses cross-shaped equally spaced cutting blades in conjunction with a pressure plate with blade grooves to extrude and cut whole pieces of animal fat raw materials from all directions, uniformly breaking large pieces of fat into smaller pieces, thus solving the problem of uneven heating and unmelted interior caused by large pieces of fat during the melting process.

[0020] 2. This invention uses a gear and rack linkage structure to drive a scraper to continuously and repeatedly sweep the surface of the filter plate, which can spread the broken fat raw materials on the surface of the filter plate in real time, avoid the accumulation and clumping of raw materials, and clean the residue at the micropores of the filter plate in time to prevent the filter holes from being blocked and ensure smooth flow of oil during the melting process.

[0021] 3. This invention achieves uniform preheating and insulation of the equipment interior through a steam circulation heating structure and a U-shaped interlayer at the rear of the protective shell. Combined with the fixed-point high-temperature heating of the slitting blade and steam connecting pipe, it further improves the heating efficiency of oils and prevents incomplete melting caused by local low temperature. At the same time, the closed melting structure can prevent external impurities and dust from mixing into the oil, greatly improving the cleanliness and processing quality of edible animal oils.

[0022] 4. This invention achieves double-layer fine filtration of oil by combining primary filtration with a filter tank and a secondary stirring filtration structure of oil-tumbling plate. The continuous stirring of the oil-tumbling plate can prevent oil residue and impurities from accumulating and clogging the filter tank. At the same time, it realizes the separate melting of oil residue and clear oil, avoiding the gelatinization and deterioration of oil residue due to long-term contact with high-temperature clear oil. This solves the problem of oil residue contaminating oil in traditional melting processes and effectively improves the taste and food safety of the finished oil.

[0023] 5. This invention uses a single servo motor to drive a worm gear and multiple sets of gears and racks to achieve simultaneous operation of multiple processes, including raw material cutting, raw material spreading, filter residue cleaning, oil mixing, and component lifting. The integrated structure design is simple and efficient, with high power utilization. It does not require multiple drive devices, reducing equipment energy consumption and manufacturing costs. At the same time, the high degree of automation effectively reduces manual intervention and improves the overall efficiency of oil melting and processing. Attached Figure Description

[0024] Figure 1 This is a perspective view of the entire invention;

[0025] Figure 2 This is a cross-sectional view of the protective shell and front shell of the present invention;

[0026] Figure 3 This is a split view of the protective shell and front shell of the present invention;

[0027] Figure 4 This is a structural diagram of the oil storage tank of the present invention;

[0028] Figure 5 This is a structural diagram of the grease treatment component of the present invention;

[0029] Figure 6 This is an exploded view of the grease processing component of the present invention;

[0030] Figure 7 This is a bottom view of the pressure plate of the present invention;

[0031] Figure 8 This is an exploded view of the outer casing of the present invention;

[0032] Figure 9 This is a diagram of the internal structure of the driving component of the present invention;

[0033] Figure 10 This is a diagram of the transmission structure of the drive component of the present invention;

[0034] Figure 11 This is a bottom view of the oil filter tank of the present invention;

[0035] Figure 12 This is a structural diagram of the slitting blade of the present invention;

[0036] Figure 13 For the present invention Figure 12 Enlarged view of point A in the middle.

[0037] In the diagram: 1. Protective shell; 2. Front shell; 3. Panel latch; 4. Slitting blade; 5. Grease treatment assembly; 6. Oil storage tank; 7. Front cover; 8. Drive assembly; 9. Steam input pipe; 10. Steam connecting pipe; 11. Steam exhaust port; 501. Connecting side plate; 502. Pressure plate; 503. Fixing frame; 504. Filter plate; 505. Oil tilting plate; 506. Oil filter bucket; 507. Scraper; 801. Outer shell; 802. Vertical rack; 803. Connecting shaft; 804. Worm gear; 805. First gear; 806. Second gear; 807. Horizontal rack; 809. Limiting slide bar; 810. Servo motor; 811. Worm gear. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] like Figures 1 to 13 As shown, this embodiment of the invention provides an edible animal fat melting device, including a protective shell 1, a front shell 2 at the front end of the protective shell 1, a railing latch 3 connected to the protective shell 1 at the top of the front shell 2, an oil processing component 5 inside the protective shell 1, a slitting blade 4 fixedly connected to the protective shell 1 inside the oil processing component 5, an oil storage tank 6 located inside the protective shell 1 below the oil processing component 5, a drive component 8 located inside the front shell 2 in front of the oil processing component 5, a front cover 7 connected to the front end of the front shell 2 by bolts, a steam input pipe 9 fixedly connected to the rear end of the protective shell 1, a steam connecting pipe 10 fixedly connected to the bottom end of the slitting blade 4, the steam connecting pipe 10 communicating with the protective shell 1, and a steam discharge port 11 connected to the steam connecting pipe 10 at the front end of the front shell 2.

[0040] The grease treatment component 5 includes two connecting side plates 501 arranged symmetrically on the left and right. A pressure plate 502 is arranged between the two connecting side plates 501 and above the cutting blade 4. A fixing frame 503 is arranged between the two connecting side plates 501 and below the steam connecting pipe 10. A filter plate 504 is fixedly connected inside the fixing frame 503. An oil filter tank 506 is arranged below the filter plate 504. An oil turning plate 505 is rotatably connected inside the oil filter tank 506. A scraper 507 is arranged at the top of the filter plate 504. The front end of the scraper 507 passes through the front end of the fixing frame 503, and the scraper 507 and the fixing frame 503 are arranged to slide left and right.

[0041] By setting up a combined enclosed shell structure of protective shell 1 and front shell 2, and cooperating with the panel latch 3 to achieve quick opening and closing and sealing fixation, the smelting operation is fully enclosed, preventing external impurities from contaminating. A circulating heating structure is formed through steam input pipe 9 and steam connecting pipe 10 to continuously heat the slitting blade 4 and the inside of the equipment, realizing high-temperature smelting of fat raw materials. Relying on the oil processing component 5, the raw material extrusion, slitting, spreading, filtering and stirring are integrated. Combined with the bottom oil storage tank 6, the oil is collected, comprehensively improving the smelting effect and oil purity.

[0042] The structure of the panel latch 3 is a combination of a handle and a locking ring. When locked, the handle of the protective shell 1 is pulled back, which causes the locking ring to be tightly fastened to the locking hook of the front shell 2, thus firmly fixing the front shell 2. When unlocked, the handle is pulled forward, and the locking ring will disengage from the locking hook, allowing the front shell 2 to be moved. This structure is existing technology, so it will not be described in detail here.

[0043] The drive assembly 8 includes a housing 801 fixedly installed at the front end of the fixed frame 503. The housing 801 is located inside the front housing 2 and is slidably arranged with the front housing 2. A vertical rack 802 is provided at the left end of the housing 801. The upper and lower ends of the vertical rack 802 are fixedly connected to the inner wall of the front housing 2 and are slidably arranged with the housing 801.

[0044] The outer shell 801 is fixed to the inner wall of the front shell 2 by the vertical rack 802, and can slide stably up and down along the vertical rack 802, providing guiding support for the overall up and down reciprocating motion of the grease treatment component 5, ensuring the stability of the movement of the pressure plate 502, filter plate 504 and other structures, avoiding deviation and jamming, and ensuring the stable operation of the slitting and melting processes.

[0045] A connecting shaft 803 is provided inside the outer casing 801 and on the right side of the vertical rack 802. The rear end of the connecting shaft 803 extends into the interior of the fixing frame 503 and is fixedly connected to the oil-turning plate 505.

[0046] By using the connecting shaft 803 as the core connecting component of the transmission, the driving power can be transmitted to the oil tipping plate 505, which drives the oil tipping plate 505 to rotate inside the oil filter tank 506. At the same time, it moves up and down with the outer shell 801, realizing the synchronous transmission of power and ensuring that the oil tipping operation is carried out synchronously with the overall smelting process.

[0047] The connecting shaft 803 is fixedly connected to the front end of a worm gear 804. The rear end of the worm gear 804 is provided with a first gear 805 that meshes with a vertical rack 802. The first gear 805 is mounted on the connecting shaft 803. The rear end of the first gear 805 is provided with a second gear 806, which is mounted on the connecting shaft 803.

[0048] The worm gear 804 and worm 811 work together to achieve power reduction transmission, improve transmission torque, and ensure stable power output. The first gear 805 meshes with the fixed vertical rack 802, which can convert the rotational motion of the gear into the linear reciprocating motion of the whole structure. The second gear 806 rotates synchronously with the connecting shaft 803, providing a power source for the subsequent horizontal movement of the scraper 507, realizing single power and multi-structure linkage.

[0049] The second gear 806 has a transverse rack 807 meshing at its top end. The top end of the transverse rack 807 is fixedly connected to the scraper 507. A limiting slide rod 809 is slidably connected inside the transverse rack 807. The limiting slide rod 809 is fixedly connected to the outer shell 801.

[0050] The rotation of the second gear 806 drives the transverse rack 807 to slide horizontally back and forth along the limiting slide bar 809. The limiting slide bar 809 can restrict the movement trajectory of the transverse rack 807 to avoid deviation and shaking, thereby driving the scraper 507 to stably and repeatedly sweep the surface of the filter plate 504, realizing the flat spreading of raw materials and cleaning of filter residue, and preventing the holes of the filter plate 504 from being blocked.

[0051] A servo motor 810 is disposed inside the housing 801 and above the worm gear 804. The servo motor 810 is fixedly connected to the housing 801, and a worm 811 is fixedly connected to the transmission end of the servo motor 810. The worm 811 meshes with the worm gear 804.

[0052] The servo motor 810 is used as the power source to drive the worm gear 811 to rotate. The worm gear 811 meshes with the worm wheel 804 to achieve transmission. It has the characteristics of start / stop and adjustable speed, and can accurately control the motion frequency and amplitude of each linkage structure to meet the melting and processing needs of fat raw materials of different specifications.

[0053] The protective shell 1 has a U-shaped interlayer at its rear end, which is connected to the steam input pipe 9 and the steam connecting pipe 10.

[0054] The U-shaped sandwich structure increases the steam flow area and heat dissipation area, which can preheat and insulate the internal cavity of the protective shell 1 in all directions, so that the internal temperature of the equipment is uniform and stable, and avoids incomplete melting of raw materials due to local low temperature.

[0055] The slitting blade 4 includes multiple transverse conical blades and multiple longitudinal conical blades, which are arranged in a cross shape and at equal intervals.

[0056] The grid-like cutting structure is formed by equidistant conical blades arranged in a cross shape. The blades are sharp and evenly distributed, which can cut whole pieces of animal fat into small pieces, refine the raw material structure, increase the contact area between the raw material and the high-temperature hot air, and greatly improve the melting efficiency.

[0057] The pressure plate 502 has a groove at its bottom end that is adapted to the transverse conical blade and the longitudinal conical blade.

[0058] With the precise fit between the blade groove at the bottom of the pressure plate 502 and the slitting blade 4, the blade can be embedded inside the blade groove when the pressure plate 502 is pressed down, so as to fully squeeze and cut the fat raw material without any dead corners, ensuring that the raw material is completely cut and avoiding large pieces of raw material residue.

[0059] The top of the oil storage tank 6 is V-shaped, and the top of the oil storage tank 6 has an arc-shaped opening adapted to the oil filter tank 506.

[0060] The V-shaped top structure guides the flow, allowing the filtered grease to quickly converge into the oil storage tank 6, preventing grease residue from accumulating. The arc-shaped opening can accommodate the movement range of the oil filter tank 506, ensuring that the structure does not interfere with the up-and-down movement of the oil filter tank 506, while also achieving precise grease collection.

[0061] Working principle and usage process

[0062] During operation, the front shell 2 is pulled out, which brings out the drive assembly 8 and the grease processing assembly 5. Then, animal fat raw materials such as lard are placed on the cutting blade 4. The front shell 2, drive assembly 8, and grease processing assembly 5 are then reset, and the front shell 2 and protective shell 1 are sealed tightly by the panel latch 3 to ensure the sealing of the operation process.

[0063] Subsequently, high-temperature steam is injected into the U-shaped interlayer of the protective shell 1 through the steam input pipe 9. After the steam is diverted through the interlayer, it enters the steam connecting pipe 10, which rapidly heats up the steam connecting pipe 10 and the slitting blade 4. The entire internal cavity of the protective shell 1 is heated by thermal radiation, providing a stable high-temperature environment for fat melting. Excess steam can be discharged in an orderly manner through the steam discharge port 11 to ensure stable internal air pressure of the equipment.

[0064] Simultaneously, the servo motor 810 is started. The servo motor 810 drives the worm wheel 804 to rotate through the worm gear 811. The worm wheel 804 drives the connecting shaft 803 to rotate synchronously. The connecting shaft 803 drives the oil-tumbling plate 505, the first gear 805, and the second gear 806 to rotate synchronously. Since the first gear 805 meshes with the fixed vertical rack 802, the first gear 805 moves up and down along the vertical rack 802 using the gear and rack transmission principle, thereby driving the connecting shaft 803, the fixed frame 503, and the overall grease treatment assembly 5 to move up and down synchronously.

[0065] When the grease processing component 5 descends, the connecting side plate 501 drives the pressure plate 502 to press down synchronously. In conjunction with the bottom-fixed cutting blade 4, the placed fat raw material is squeezed and cut. The cross-shaped blades can evenly cut the whole piece of raw material. The refined raw material falls onto the surface of the filter plate 504. At the same time, the second gear 806 rotates with the connecting shaft 803, meshing and driving the transverse rack 807 to move horizontally back and forth along the limiting slide bar 809. This drives the scraper 507 to evenly spread the broken material on the surface of the filter plate 504, preventing the raw material from accumulating and clumping, and ensuring that the raw material is heated evenly.

[0066] When the grease treatment component 5 rises, the pressure plate 502 moves away from the slitting blade 4, and the filter plate 504 and surface debris approach the high-temperature steam connecting pipe 10. The debris is continuously heated and melted by high-temperature heat radiation, causing the solid fat to melt into liquid grease quickly. The scraper 507 continuously sweeps and flips the raw material, ensuring that the raw material comes into full contact with the high-temperature heat source, improving melting efficiency. At the same time, it cleans the residue in the holes of the filter plate 504 in time to prevent blockage. Furthermore, during the rising process, the oil residue on the filter plate 504 comes into contact with the bottom of the steam connecting pipe 10, which squeezes the oil residue to a certain extent, squeezing out the grease on the oil residue and preventing grease residue.

[0067] The melted liquid oil is initially filtered through filter plate 504 and falls into the oil filter tank 506. The connecting shaft 803 drives the oil-tumbling plate 505 to rotate continuously, stirring and agitating the oil in the oil filter tank 506 to prevent impurities from accumulating and clogging the filter holes of the oil filter tank 506, thus achieving secondary fine filtration of the oil. The pure oil after double-layer filtration drips into the oil storage tank 6 through the arc-shaped opening at the top of the oil storage tank 6 for storage. The V-shaped top can effectively guide the flow and prevent oil residue. Throughout the entire oil melting process, the melted oil does not come into direct contact with the oil residue.

[0068] After the smelting operation is completed, unlock the panel latch 3, pull out the front shell 2 to bring out the oil processing component 5 and the drive component 8, and then take out the oil storage tank 6 to collect and store the pure edible animal oil inside. The whole process is a closed-loop waterless smelting process, which effectively ensures the purity and quality of the oil.

[0069] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0070] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An apparatus for melting edible animal fats, comprising a protective shell (1), characterized in that: The protective shell (1) has a front shell (2) at its front end. The top of the front shell (2) is provided with a railing latch (3) connected to the protective shell (1). The protective shell (1) has a grease processing assembly (5) inside. The grease processing assembly (5) has a slitting blade (4) fixedly connected to the protective shell (1) inside. The grease processing assembly (5) has an oil storage tank (6) located inside the protective shell (1) below. The grease processing assembly (5) has a drive assembly (8) located inside the front shell (2) in front of it. The front end of the front shell (2) is connected to a front cover (7) by bolts. The rear end of the protective shell (1) is fixedly connected to a steam input pipe (9). The bottom end of the slitting blade (4) is fixedly connected to a steam connecting pipe (10). The steam connecting pipe (10) is connected to the protective shell (1). The front end of the front shell (2) has a steam discharge port (11) connected to the steam connecting pipe (10). The grease processing component (5) includes two connecting side plates (501) arranged symmetrically on the left and right. A pressure plate (502) is arranged between the two connecting side plates (501) and above the slitting blade (4). A fixing frame (503) is arranged between the two connecting side plates (501) and below the steam connecting pipe (10). A filter plate (504) is fixedly connected inside the fixing frame (503). An oil filter bucket (506) is arranged below the filter plate (504). An oil turning plate (505) is rotatably connected inside the oil filter bucket (506). A scraper (507) is arranged at the top of the filter plate (504). The front end of the scraper (507) passes through the front end of the fixing frame (503), and the scraper (507) and the fixing frame (503) are arranged to slide left and right.

2. The edible animal fat smelting apparatus according to claim 1, characterized in that: The drive assembly (8) includes a housing (801) fixedly installed at the front end of the fixed frame (503). The housing (801) is located inside the front shell (2), and the housing (801) and the front shell (2) are arranged to slide up and down. A vertical rack (802) is provided at the left end of the housing (801). The upper and lower ends of the vertical rack (802) are fixedly connected to the inner wall of the front shell (2), and the vertical rack (802) and the housing (801) are arranged to slide up and down.

3. The edible animal fat melting apparatus according to claim 2, characterized in that: A connecting shaft (803) is provided inside the outer casing (801) and on the right side of the vertical rack (802). The rear end of the connecting shaft (803) extends into the interior of the fixed frame (503) and is fixedly connected to the oil-turning plate (505).

4. The edible animal fat smelting apparatus according to claim 3, characterized in that: The front end of the connecting shaft (803) is fixedly connected to a worm gear (804), and the rear end of the worm gear (804) is provided with a first gear (805) that meshes with a vertical rack (802). The first gear (805) is fitted onto the connecting shaft (803), and the rear end of the first gear (805) is provided with a second gear (806), which is fitted onto the connecting shaft (803).

5. The edible animal fat melting apparatus according to claim 4, characterized in that: The top of the second gear (806) is engaged with a transverse rack (807), the top of the transverse rack (807) is fixedly connected to the scraper (507), and a limiting slide rod (809) is slidably connected inside the transverse rack (807), and the limiting slide rod (809) is fixedly connected to the outer shell (801).

6. The edible animal fat melting apparatus according to claim 3, characterized in that: A servo motor (810) is provided inside the housing (801) and above the worm gear (804). The servo motor (810) is fixedly connected to the housing (801). A worm (811) is fixedly connected to the transmission end of the servo motor (810). The worm (811) meshes with the worm gear (804).

7. The edible animal fat smelting apparatus according to claim 1, characterized in that: The protective shell (1) has a U-shaped interlayer at its rear end, which is connected to the steam input pipe (9) and the steam connecting pipe (10).

8. The edible animal fat smelting apparatus according to claim 1, characterized in that: The slitting blade (4) includes multiple transverse conical blades and multiple longitudinal conical blades, which are arranged in a cross shape and at equal intervals.

9. The edible animal fat smelting apparatus according to claim 1, characterized in that: The bottom end of the pressure plate (502) is provided with a groove adapted to the transverse conical blade and the longitudinal conical blade.

10. The edible animal fat smelting apparatus according to claim 1, characterized in that: The top of the oil storage tank (6) is V-shaped, and the top of the oil storage tank (6) is provided with an arc-shaped opening adapted to the oil filter barrel (506).

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