Peanut oil low temperature pressing apparatus

Abstract

The utility model relates to the technical field of low temperature pressing of peanut oil, specifically relates to a low temperature pressing equipment for peanut oil, including the barrel, the barrel inside assembly has the pressing mechanism, the pressing mechanism includes the first rotary lever, the first rotary lever is rotatably connected with the bore by bearing, the bore shape is the variable diameter shape, left thin right thick, the barrel side is connected with the motor through fixed connection, the first rotary lever movable penetrates the barrel, the first rotary lever extension end extends to the barrel side. This hot water circulation system can keep the temperature inside the barrel relatively stable, which helps to maintain the optimum temperature condition in the oil pressing process, the spiral shape of the spiral groove can guide the peanuts to flow in a certain direction in the bore, making the movement of the peanuts in the bore more uniform, further improving the oil pressing effect, the structure of the spiral groove can prevent the peanuts from accumulating in the bore, avoiding the bore from being blocked due to the accumulation of peanuts, thereby ensuring the normal operation of the oil press.

Description

Technical Field

[0001] This utility model relates to the field of low-temperature pressing technology for peanut oil, specifically to a low-temperature pressing device for peanut oil. Background Technology

[0002] There are generally two methods for primary oil extraction in the processing of edible vegetable oils: pressing and solvent extraction. Pressing is a physical method of extracting oil from oilseeds, originating from traditional workshops. However, modern pressing is an industrialized process. Solvent extraction, on the other hand, uses chemical principles and food-grade solvents to extract oil from oilseeds. Historically, solvent extraction is recognized internationally as the most advanced edible oil extraction technology. It was first applied and developed in developed countries, and in recent years, it has been widely used in my country's oil production.

[0003] Patent document CN207388374U discloses a screw pressing device for a peanut oil press, including an adjusting handle, a pressing chamber, a frame, a loading hopper, a feeding hopper, a feeding screw, a screw shaft, a screw, and a filter screen. The adjusting handle is mounted on the frame, the pressing chamber is located next to the frame, the screw is located inside the pressing chamber, the screw shaft is located below the screw, the filter screen is located below the screw shaft, the filter screen is surrounded by inserts, and a catalytic extraction layer is located inside the filter screen. An oil outlet is located on the pressing chamber, and the feeding hopper is located above the pressing chamber. The advantages are: higher oil yield, higher oil pressing efficiency, reduced oil residue production, and catalytic extraction of oil from the oil cake through the filter screen's catalytic layer, increasing the oil yield. The produced peanut oil has fewer impurities, a clear color, and a fragrant aroma. Furthermore, the machine is easy to install and occupies a small area.

[0004] While the aforementioned application documents mention that the oil in the oil cake is extracted through catalysis of the filter layer, increasing the oil yield and producing peanut oil with fewer impurities, a clear color, and a fragrant aroma, and that the machine is easy to install and occupies little space, the temperature inside the pressing chamber gradually increases during the pressing process due to the rotation of the screw shaft and friction between the oilseeds. If the temperature is too high, the proteins in the oilseeds will undergo thermal denaturation, and the viscosity of the oil will increase, leading to gelatinization. Gelatinized oil becomes viscous and easily adheres to components such as the screw, pressing chamber, and filter screen, thus hindering the normal flow of oil and causing blockages.

[0005] Therefore, a low-temperature pressing device for peanut oil is proposed to solve the problems mentioned above. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a low-temperature pressing device for peanut oil, which solves the problems mentioned in the background section.

[0007] To achieve the above objectives, the present invention provides the following technical solution: it includes a cylinder, and a pressing mechanism is assembled inside the cylinder;

[0008] The pressing mechanism includes a first rotating rod, which is rotatably connected to a pressing chamber via a bearing. The pressing chamber has a variable diameter shape, being narrower on the left and wider on the right. A motor is fixedly connected to the side of the cylinder. The first rotating rod movably passes through the cylinder, and its extension end extends toward the side of the cylinder. The outer wall of the pressing chamber has a spiral groove with a gradient pitch. The output end of the motor is fixedly connected to the extension end of the first rotating rod. A water circulation mechanism is assembled at the top of the cylinder.

[0009] Preferably, the water circulation mechanism includes a receiving cavity, which is formed in the inner wall of the cylinder. A water tank is fixedly connected to the top of the cylinder, and a tank cover is fitted on the top of the water tank. A first water pump is fixedly connected to the top of the water tank, and a first water pipe is fixedly connected to the front of the first water pump. The end of the first water pipe away from the first water pump is fixedly connected to the bottom of the receiving cavity.

[0010] Preferably, a second water pump is mounted on the side of the water tank, and a second water pipe is fixedly connected to the side of the second water pump. The end of the second water pipe away from the second water pump is fixedly connected to the top of the accommodating cavity.

[0011] Preferably, the top of the cylinder is equipped with a feed inlet, the bottom of the cylinder is equipped with a discharge outlet, the bottom of the cylinder is equipped with a support rod, and the bottom of the support rod is fixedly connected to a support base.

[0012] Preferably, the bottom of the cylinder is equipped with a filter cleaning mechanism.

[0013] Preferably, the filtration and cleaning mechanism includes a box body, which is fixedly connected to the bottom of the cylinder and located at the bottom of the discharge port. A limiting block is fixedly connected to the side of the inner wall of the box body, and a moving rod is slidably connected to the inner wall of the limiting block. A scraping block is fixedly connected to the side of the moving rod. A filter plate is fixedly connected to the front of the inner wall of the box body, and a discharge pipe is assembled at the bottom of the box body.

[0014] Preferably, a spring is fixedly connected to the front of the movable rod, and a second rotating rod is rotatably connected to the side of the box body via a bearing. An elliptical block is fixedly sleeved on the outer wall of the second rotating rod. The outer walls of the first rotating rod and the second rotating rod are driven by a transmission assembly. The transmission assembly includes two pulleys, which are respectively fixedly sleeved on the outer walls of the first rotating rod and the second rotating rod. A belt is wound around the two pulleys, and a protective cover is fitted on the outer wall of the transmission assembly.

[0015] Compared with the prior art, this utility model provides a low-temperature pressing device for peanut oil, which has the following beneficial effects:

[0016] 1. As the internal temperature of the cylinder rises, the hot water source will also rise. A second water pump will then pump the hot water back into the water tank from the containment chamber, creating a circulation system. This water circulation system helps maintain a relatively stable temperature inside the cylinder, contributing to optimal temperature conditions during the oil pressing process. The spiral shape of the spiral groove guides the peanuts to flow in a specific direction within the pressing chamber, making their movement more uniform and further improving the oil pressing effect. The spiral groove structure also prevents peanuts from accumulating in the pressing chamber, avoiding blockages and ensuring the normal operation of the oil press.

[0017] Second, the first rotating rod drives the transmission assembly to rotate, which in turn drives the second rotating rod to rotate. The second rotating rod then drives the elliptical block to rotate. During the rotation, the elliptical block squeezes the moving rod, causing the moving rod to move the scraping block forward and scrape the top of the filter plate. This scraping action can effectively remove oil residue and impurities from the top of the filter plate, preventing the filter plate from clogging and ensuring that the oil can pass through the filter plate smoothly and be discharged. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the left side structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the exploded structure of this utility model;

[0021] Figure 4 This is a top view of part of the structure of this utility model.

[0022] In the diagram: 1. Cylinder; 2. Pressing mechanism; 21. First rotating rod; 22. Pressing chamber; 23. Motor; 24. Spiral groove; 3. Filtration and cleaning mechanism; 31. Box body; 32. Moving rod; 33. Scraper block; 34. Filter plate; 35. Second rotating rod; 36. Elliptical block; 37. Transmission assembly; 38. Protective cover; 39. Limiting block; 4. Water circulation mechanism; 41. Water tank; 42. First water pump; 43. First water pipe; 44. Second water pump; 45. Second water pipe; 46. Receptacle; 5. Feed inlet; 6. Discharge outlet; 7. Support rod; 8. Support base. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1

[0025] See Figures 1-4 This embodiment provides a low-temperature pressing device for peanut oil, including a cylinder 1, and a pressing mechanism 2 is installed inside the cylinder 1;

[0026] The pressing mechanism 2 includes a first rotating rod 21, which is rotatably connected to a pressing chamber 22 via a bearing. The pressing chamber 22 has a variable diameter shape, being narrower on the left and wider on the right. A motor 23 is fixedly connected to the side of the cylinder 1. The first rotating rod 21 movably passes through the cylinder 1, and its extension end extends toward the side of the cylinder 1. The outer wall of the pressing chamber 22 has a spiral groove 24 with a gradient pitch. The output end of the motor 23 is fixedly connected to the extension end of the first rotating rod 21. A water circulation mechanism 4 is assembled on the top of the cylinder 1.

[0027] The water circulation mechanism 4 includes a receiving cavity 46, which is opened on the inner wall of the cylinder 1. A water tank 41 is fixedly connected to the top of the cylinder 1. A tank cover is fitted on the top of the water tank 41. A first water pump 42 is fixedly connected to the top of the water tank 41. A first water pipe 43 is fixedly connected to the front of the first water pump 42. The end of the first water pipe 43 away from the first water pump 42 is fixedly connected to the bottom of the receiving cavity 46.

[0028] A second water pump 44 is mounted on the side of the water tank 41, and a second water pipe 45 is fixedly connected to the side of the second water pump 44. The end of the second water pipe 45 away from the second water pump 44 is fixedly connected to the top of the accommodating cavity 46.

[0029] The top of the cylinder 1 is equipped with a feed inlet 5, the bottom of the cylinder 1 is equipped with a discharge outlet 6, the bottom of the cylinder 1 is equipped with a support rod 7, and the bottom of the support rod 7 is fixedly connected to a support base 8.

[0030] In practical use, peanuts are poured into the feed inlet 5, and the motor 23 is started. The motor 23 drives the pressing chamber 22 to rotate, and the peanuts are squeezed through the spiral groove 24 on the outer wall of the pressing chamber 22. At the same time, the first water pump 42 is started, and the first water pipe 43 is driven to draw water from the water tank 41 and discharge it into the receiving cavity 46. When the temperature inside the cylinder 1 rises, the hot water source will rise, and the second water pump 44 is started. The second water pipe 45 draws hot water from the receiving cavity 46 and discharges it back into the water tank 41, forming a cycle. The design of the spiral groove 24 can increase the force-bearing area of ​​the peanuts in the pressing chamber, so that the peanuts are subjected to continuous squeezing during rotation, thereby improving the oil extraction efficiency.

[0031] Example 2

[0032] See Figures 1-4 Based on Example 1, the bottom of the cylinder 1 is equipped with a filter cleaning mechanism 3.

[0033] The filter cleaning mechanism 3 includes a box body 31, which is fixedly connected to the bottom of the cylinder 1. The box body 31 is located at the bottom of the discharge port 6. A limit block 39 is fixedly connected to the inner side of the box body 31. A moving rod 32 is slidably connected to the inner wall of the limit block 39. A scraping block 33 is fixedly connected to the side of the moving rod 32. A filter plate 34 is fixedly connected to the front of the inner wall of the box body 31. A discharge pipe is assembled at the bottom of the box body 31.

[0034] A spring is fixedly connected to the front of the movable rod 32. A second rotating rod 35 is rotatably connected to the side of the box 31 via a bearing. An elliptical block 36 is fixedly sleeved on the outer wall of the second rotating rod 35. The outer walls of the first rotating rod 21 and the second rotating rod 35 are driven by a transmission assembly 37. The transmission assembly 37 includes two pulleys, which are respectively fixedly sleeved on the outer walls of the first rotating rod 21 and the second rotating rod 35. A belt is wound around the two pulleys. A protective cover 38 is fitted on the outer wall of the transmission assembly 37.

[0035] In actual use, the first rotating rod 21 drives the transmission component 37 to rotate, the transmission component 37 drives the second rotating rod 35 to rotate, the second rotating rod 35 drives the elliptical block 36 to rotate, the elliptical block 36 drives the moving rod 32 to move forward, the moving rod 32 drives the scraping block 33 to move forward, scraping the top of the filter plate 34 to prevent the filter plate 34 from clogging. When the elliptical block 36 no longer presses the moving rod 32, the spring drives the moving rod 32 to reset.

[0036] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0037] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low-temperature pressing device for peanut oil, characterized in that: Includes a cylinder (1), and a pressing mechanism (2) is assembled inside the cylinder (1); The pressing mechanism (2) includes a first rotating rod (21), which is rotatably connected to a pressing chamber (22) via a bearing. The pressing chamber (22) has a variable diameter shape, being narrower on the left and wider on the right. A motor (23) is fixedly connected to the side of the cylinder (1). The first rotating rod (21) moves through the cylinder (1). The extension end of the first rotating rod (21) extends to the side of the cylinder (1). The outer wall of the pressing chamber (22) is provided with a spiral groove (24) in a gradient pitch. The output end of the motor (23) is fixedly connected to the extension end of the first rotating rod (21). A water circulation mechanism (4) is assembled on the top of the cylinder (1).

2. The low-temperature pressing equipment for peanut oil according to claim 1, characterized in that: The water circulation mechanism (4) includes a accommodating cavity (46), which is opened on the inner wall of the cylinder (1). A water tank (41) is fixedly connected to the top of the cylinder (1). A tank cover is fitted on the top of the water tank (41). A first water pump (42) is fixedly connected to the top of the water tank (41). A first water pipe (43) is fixedly connected to the front of the first water pump (42). The end of the first water pipe (43) away from the first water pump (42) is fixedly connected to the bottom of the accommodating cavity (46).

3. The low-temperature pressing equipment for peanut oil according to claim 2, characterized in that: The water tank (41) is equipped with a second water pump (44) on its side. A second water pipe (45) is fixedly connected to the side of the second water pump (44). One end of the second water pipe (45) away from the second water pump (44) is fixedly connected to the top of the accommodating cavity (46).

4. The low-temperature pressing equipment for peanut oil according to claim 1, characterized in that: The top of the cylinder (1) is equipped with a feed inlet (5), the bottom of the cylinder (1) is equipped with a discharge outlet (6), the bottom of the cylinder (1) is equipped with a support rod (7), and the bottom of the support rod (7) is fixedly connected with a support base (8).

5. The low-temperature pressing equipment for peanut oil according to claim 4, characterized in that: The bottom of the cylinder (1) is equipped with a filter cleaning mechanism (3).

6. The low-temperature pressing equipment for peanut oil according to claim 5, characterized in that: The filter cleaning mechanism (3) includes a box body (31), which is fixedly connected to the bottom of the cylinder (1). The box body (31) is located at the bottom of the discharge port (6). A limiting block (39) is fixedly connected to the inner wall side of the box body (31). A moving rod (32) is slidably connected to the inner wall of the limiting block (39). A scraping block (33) is fixedly connected to the side of the moving rod (32). A filter plate (34) is fixedly connected to the front of the inner wall of the box body (31). A discharge pipe is assembled at the bottom of the box body (31).

7. The low-temperature pressing equipment for peanut oil according to claim 6, characterized in that: The moving rod (32) is fixedly connected to a spring on the front. The side of the box (31) is rotatably connected to a second rotating rod (35) through a bearing. An elliptical block (36) is fixedly sleeved on the outer wall of the second rotating rod (35). The outer walls of the first rotating rod (21) and the second rotating rod (35) are driven by a transmission assembly (37). The transmission assembly (37) includes two pulleys. The two pulleys are fixedly sleeved on the outer walls of the first rotating rod (21) and the second rotating rod (35) respectively. A belt is wound around the two pulleys. A protective cover (38) is fitted on the outer wall of the transmission assembly (37).

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