Spiral oil press for tea oil production

By installing flaps, baffles, and damping rods to seal the oil outlet opening in the screw oil press, and combining this with a limiting shell to cover the oil outlet cylinder, the pollution problem caused by the exposed oil outlet and pressing channel of the screw oil press is solved, thus achieving clean production and food safety of tea oil.

CN224348479UActive Publication Date: 2026-06-12HUNAN JINBO TEA OIL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUNAN JINBO TEA OIL CO LTD
Filing Date
2025-09-11
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

The existing screw oil press has an exposed oil outlet hopper and pressing channel, which can easily lead to contamination of tea oil, resulting in insufficient hygiene and safety and making it difficult to meet the requirements of food-grade safe production and hygiene standards.

Method used

A screw oil press for tea oil production was designed. By setting up a flap, baffle and damping rod to close the opening of the oil hopper, a closed oil collection environment is formed. The oil cylinder and pressing channel are covered by a limiting shell to prevent external impurities from entering.

🎯Benefits of technology

This effectively prevents tea oil from being exposed to air during the outflow and temporary storage process, avoiding contamination from dust and foreign matter, and ensuring the cleanliness and food safety of the pressing process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of tea oil production, especially relate to a spiral oil press for tea oil production, including base, support seat, feed frame, blanking seat, oil outlet cylinder and support plate etc., support seat installs in the right part of base, feed frame is fixedly connected on the upper portion of support seat, blanking seat installs in the left part of base, oil outlet cylinder installs between the upper portion of support seat and blanking seat, support plate installs in the left part of base. Through setting turning plate, baffle and damping rotating rod, can be completely closed the upper opening and front opening of oil outlet bucket in the oil pressing process, form closed oil collection environment, effectively prevent tea oil in the process of flowing out and temporary storage from being exposed to air, avoid dust, foreign matter, flying insects and so on pollution, at the same time, through setting limit shell cover oil outlet cylinder and squeezing channel, carry out effective protection to squeezing channel, prevent external impurity from entering squeezing channel, eliminate cross contamination, guarantee the cleanness of squeezing process and food safety.
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Description

Technical Field

[0001] This utility model belongs to the field of tea oil production technology, and in particular relates to a screw oil press for tea oil production. Background Technology

[0002] With the widespread application of tea oil in the food, health product, and high-end daily chemical industries, its market demand continues to grow. Currently, screw oil presses are commonly used for tea seed oil extraction due to their advantages such as compact structure, high oil yield, and strong continuous operation capability, making them the main production equipment for small and medium-sized oil mills. In actual use, tea seeds are roasted and then fed into the screw oil press, where oil separation is achieved through the pushing and squeezing action of the screw shaft.

[0003] However, existing screw oil presses pose significant hygiene risks: their oil outlet hoppers are typically open, exposing the pressed tea oil directly to the air, making it highly susceptible to contamination from workshop dust, insects, moisture, or operator contact. Simultaneously, the pressing channel is exposed and lacks protection, allowing external impurities to easily enter, affecting not only the purity and sensory quality of the tea oil but also potentially fostering microbial growth, making it difficult to meet food-grade safety and hygiene standards.

[0004] Therefore, there is a particular need for a screw press for tea oil production to solve the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of existing screw oil presses, such as exposed oil outlet and pressing channels that easily lead to contamination of tea oil and insufficient hygiene and safety, this utility model provides a screw oil press for tea oil production.

[0006] This utility model is achieved through the following technical means: A screw oil press for tea oil production includes a base, a support seat, a feeding frame, a discharging seat, an oil outlet cylinder, a support plate, a servo motor, a screw press paddle, a slag discharge assembly, an oil outlet hopper, a rotating rod, a flap plate, a baffle plate, a limiting shell, and a controller. The support seat is installed on the right side of the base, the feeding frame is fixedly connected to the upper part of the support seat, the discharging seat is installed on the left side of the base, the oil outlet cylinder is installed between the upper parts of the support seat and the discharging seat, the support plate is installed on the left side of the base, the servo motor is installed on the upper part of the support plate, the screw press paddle is rotatably arranged between the upper parts of the support seat and the discharging seat, and the output shaft of the servo motor is fixedly connected to one end of the screw press paddle. Next, the screw press paddle passes through the inside of the oil outlet cylinder, with one end extending into the discharge channel of the discharge seat. The discharge port of the feed frame is aligned with the other end of the screw press paddle. The slag discharge assembly is set between the support seat, the discharge seat, and the support plate. The oil outlet hopper is installed between the support seat and the discharge seat. The oil outlet cylinder and the limiting cylinder are distributed on both sides of the oil outlet hopper. The rotating rod is rotatably set on the upper part of the oil outlet hopper, and a flap is fixed on it. The flap blocks the upper opening of the oil outlet hopper. The baffle is slidably inserted into the front of the oil outlet hopper and blocks the front opening of the oil outlet hopper. The limiting shell is installed between the upper part of the support seat and the discharge seat and covers the oil outlet cylinder. The controller is installed on one side of the limiting shell, and a servo motor is electrically connected to the controller.

[0007] Furthermore, the slag discharge assembly includes a second servo motor, a propeller, and a limiting cylinder. The second servo motor is installed on the lower part of the support plate and is electrically connected to the controller. The limiting cylinder is installed between the support base and the lower part of the discharge base. The propeller is rotatably located on the lower part of the discharge base and passes through the inside of the limiting cylinder. The output shaft of the second servo motor is fixedly connected to one end of the propeller, and one end of the propeller extends into the discharge channel of the discharge base.

[0008] Furthermore, it also includes a transparent plate, which is fixed inside the flap and extends through the thickness of the flap.

[0009] Furthermore, the feed frame consists of a large rectangular frame, a flat-topped pyramidal frame, and a small rectangular frame from top to bottom, forming a funnel structure that is larger at the top and smaller at the bottom.

[0010] Furthermore, the rotating rod is a damping rod.

[0011] Furthermore, an arc-shaped guide plate is provided at one end of the limiting cylinder.

[0012] Beneficial effects: By setting up flaps, baffles, and damping rods, the upper and front openings of the oil hopper can be completely sealed during the oil pressing process, forming a closed oil collection environment. This effectively prevents tea oil from being exposed to the air during the outflow and temporary storage process, avoiding contamination from dust, foreign objects, and flying insects. At the same time, by setting up a limiting shell to cover the oil outlet cylinder and pressing channel, the pressing channel is effectively protected, preventing external impurities from entering the pressing channel, eliminating cross-contamination, and ensuring the cleanliness and food safety of the pressing process. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a three-dimensional structural diagram of the support plate, servo motor one, and servo motor two components of this utility model.

[0015] Figure 3 This is a three-dimensional structural diagram of the components of this utility model, including the rotating rod, the flip plate, and the transparent plate.

[0016] Figure 4 This is a partial sectional view of the support base, feeding frame, unloading base and support plate components of this utility model.

[0017] Figure 5 This is a partial sectional view of the support base, feed frame, discharge base, and oil outlet cylinder components of this utility model.

[0018] Figure 6 This is a partial sectional view of the support plate and limiting cylinder components of this utility model.

[0019] The parts and their numbers in the diagram are as follows: 1. Base, 2. Support base, 3. Feed frame, 4. Discharge base, 5. Oil outlet cylinder, 6. Support plate, 7. Servo motor one, 8. Screw press paddle, 9. Servo motor two, 10. Propeller, 11. Limit cylinder, 12. Oil outlet hopper, 13. Rotating rod, 14. Flip plate, 15. Transparent plate, 16. Baffle, 17. Limit shell, 18. Controller. Detailed Implementation

[0020] Example: A screw oil press for tea oil production, such as Figures 1-6As shown, the system includes a base 1, a support 2, a feed frame 3, a discharge seat 4, an oil outlet cylinder 5, a support plate 6, a servo motor 7, a screw press paddle 8, a slag discharge assembly, an oil outlet hopper 12, a rotating rod 13, a flap 14, a transparent plate 15, a baffle 16, a limiting shell 17, and a controller 18. The support 2 is bolted to the right side of the base 1. The feed frame 3 is fixedly connected to the upper part of the support 2. The discharge seat 4 is bolted to the left side of the base 1. The oil outlet cylinder 5 is bolted between the upper parts of the support 2 and the discharge seat 4. The feed frame 3 contacts the right end of the oil outlet cylinder 5. The support plate 6 is bolted to the base 1. On the left side of seat 1, servo motor 7 is fixed to the upper part of support plate 6 by bolts. The screw press paddle 8 is rotatably positioned between the upper parts of support seat 2 and discharge seat 4. The output shaft of servo motor 7 is fixedly connected to the left end of screw press paddle 8 via a coupling. Screw press paddle 8 passes through the inside of oil outlet cylinder 5, and its left end extends into the discharge channel of discharge seat 4. The discharge port of feed frame 3 is aligned with the right end of screw press paddle 8. Feed frame 3, from top to bottom, includes a large rectangular frame, a flat-topped pyramidal frame, and a small rectangular frame, forming a funnel structure that is larger at the top and smaller at the bottom. This allows for large-volume feeding, smooth material guidance, and concentrated feeding of tea seeds into the screw press paddle. The right inlet of the spun press paddle 8 has a slag discharge assembly located between the support base 2, the feeding base 4, and the support plate 6. The oil outlet hopper 12 is bolted between the support base 2 and the feeding base 4. The oil outlet cylinder 5 and the limiting cylinder 11 are distributed on the upper and lower sides of the oil outlet hopper 12. The rotating rod 13 is rotatably mounted on the upper part of the oil outlet hopper 12, and a flap 14 is fixedly connected to it. The flap 14 blocks the upper opening of the oil outlet hopper 12. The rotating rod 13 is a damping rod, which can keep the flap 14 stable at any angle, making it easy to fix the position of the flap 14 when cleaning the oil outlet hopper 12. The transparent plate 15 is fixedly connected inside the flap 14 and penetrates the flap. The thickness direction of 14 allows the operator to observe the accumulation of tea oil in the oil outlet 12 through the transparent plate 15 and judge the oil dispensing status. The baffle 16 is slidably inserted into the front of the oil outlet 12 and blocks the front opening of the oil outlet 12. The edge of the baffle 16 that contacts the oil outlet 12 is provided with a sealing sheet to prevent tea oil leakage. The upper part of the baffle 16 is equipped with a handle for easy manual operation. The limiting shell 17 is fixed between the upper part of the support base 2 and the feeding base 4 by bolts and covers the oil outlet cylinder 5. The controller 18 is fixed to the front side of the limiting shell 17 by bolts. The servo motor 7 is electrically connected to the controller 18.

[0021] like Figures 1-6As shown, the slag discharge assembly includes a second servo motor 9, a propeller 10, and a limiting cylinder 11. The second servo motor 9 is fixed to the lower part of the support plate 6 by bolts and is electrically connected to the controller 18. The limiting cylinder 11 is fixed between the support base 2 and the lower part of the discharge base 4 by bolts. The right end of the limiting cylinder 11 is provided with an arc-shaped guide plate, which can smoothly discharge the residue. The propeller 10 is rotatably set at the lower part of the discharge base 4 and passes through the inside of the limiting cylinder 11. The output shaft of the second servo motor 9 is fixedly connected to the left end of the propeller 10 through a coupling, and the left end of the propeller 10 extends into the discharge channel of the discharge base 4.

[0022] When in use, the operator first starts servo motor 7 and servo motor 9 through controller 18. Servo motor 7 runs, driving the screw press paddle 8 to rotate, and servo motor 9 runs, driving the propeller 10 to rotate.

[0023] The roasted tea seeds are then poured into the feed frame 3. The tea seeds are guided step by step through the large rectangular frame, the flat-topped pyramidal frame and the small rectangular frame, and are concentrated into the right inlet of the spiral press 8. Under the rotating pushing action of the spiral press 8, the tea seeds move to the left and enter the pressing channel inside the oil outlet cylinder 5. As the tea seeds are continuously pushed and squeezed, the internal oil is gradually squeezed out. The extracted tea oil flows out through the gaps in the wall of the oil outlet cylinder 5 and drips into the oil outlet hopper 12 below.

[0024] The pressed residue is pushed to the left end of the screw press 8, falls into the discharge channel of the discharge seat 4, and contacts the left end of the screw 10. The rotating screw 10 transports the residue to the right into the limiting cylinder 11, and finally discharges it from the right end of the limiting cylinder 11, thus realizing automatic slag discharge.

[0025] Throughout the oil pressing process, the flap 14 is in a horizontal position, blocking the opening above the oil hopper 12, and the baffle 16 is in a downward position, sealing the oil outlet in front of the oil hopper 12. The two work together to form a closed space in the oil hopper 12, preventing the tea oil from being exposed to the outside world, effectively avoiding dust and impurities from contaminating the oil, and ensuring the cleanliness of the oil. At the same time, the limiting shell 17 covers the oil cylinder 5 to prevent external impurities from entering the pressing channel, further ensuring the cleanliness of the oil.

[0026] After the oil pressing is completed, once it is confirmed that the limiting cylinder 11 will no longer discharge residue, turn off the servo motor 1 7 and the servo motor 2 9, pull the baffle 16 upward to open the oil outlet in front of the oil hopper 12, discharge the collected tea oil and store it. After the oil discharge is completed, the flip plate 14 can be manually rotated upward to fully expose the inside of the oil hopper 12 for easy cleaning.

Claims

1. A screw oil press for tea oil production, characterized in that, The system includes a base (1), a support seat (2), a feeding frame (3), a discharge seat (4), an oil outlet cylinder (5), a support plate (6), a servo motor (7), a screw press (8), a slag discharge assembly, an oil outlet hopper (12), a rotating rod (13), a flap (14), a baffle (16), a limiting shell (17), and a controller (18). The support seat (2) is installed on the right side of the base (1), the feeding frame (3) is fixed to the upper part of the support seat (2), the discharge seat (4) is installed on the left side of the base (1), the oil outlet cylinder (5) is installed between the upper parts of the support seat (2) and the discharge seat (4), the support plate (6) is installed on the left side of the base (1), the servo motor (7) is installed on the upper part of the support plate (6), and the screw press (8) is rotatably set between the upper parts of the support seat (2) and the discharge seat (4). The output shaft of the servo motor (7) is fixedly connected to one end of the screw press (8). The screw press (8) discharges oil from the oil outlet cylinder (5) The feed frame (3) passes through the interior of the screw press (8), with one end extending into the feeding channel of the feeding seat (4). The discharge port of the feed frame (3) is aligned with the other end of the screw press (8). The slag discharge assembly is set between the support seat (2), the feeding seat (4), and the support plate (6). The oil hopper (12) is installed between the support seat (2) and the feeding seat (4). The oil discharge cylinder (5) and the limiting cylinder (11) are distributed on both sides of the oil hopper (12). The rotating rod (13) is rotatably set in the oil hopper (12). The upper part is fixed with a flap (14), which blocks the upper opening of the oil hopper (12). The baffle (16) is slidably inserted into the front of the oil hopper (12) and blocks the front opening of the oil hopper (12). The limiting shell (17) is installed between the upper part of the support base (2) and the feeding base (4) and covers the oil cylinder (5). The controller (18) is installed on one side of the limiting shell (17). The servo motor (7) is electrically connected to the controller (18).

2. The screw oil press for tea oil production according to claim 1, characterized in that, The slag discharge assembly includes a second servo motor (9), a propeller (10), and a limiting cylinder (11). The second servo motor (9) is installed on the lower part of the support plate (6) and is electrically connected to the controller (18). The limiting cylinder (11) is installed between the support base (2) and the lower part of the discharge base (4). The propeller (10) is rotatably set on the lower part of the discharge base (4) and passes through the inside of the limiting cylinder (11). The output shaft of the second servo motor (9) is fixedly connected to one end of the propeller (10), and one end of the propeller (10) extends into the discharge channel of the discharge base (4).

3. The screw oil press for tea oil production according to claim 2, characterized in that, It also includes a transparent plate (15), which is fixed inside the flap (14) and extends through the thickness direction of the flap (14).

4. The screw oil press for tea oil production according to claim 3, characterized in that, The feed frame (3) consists of a large rectangular frame, a flat-topped pyramidal frame and a small rectangular frame from top to bottom, forming a funnel structure that is large at the top and small at the bottom.

5. A screw oil press for tea oil production according to claim 4, characterized in that, The rotating rod (13) is a damping rod.

6. A screw oil press for tea oil production according to claim 5, characterized in that, The limiting cylinder (11) has an arc-shaped guide plate at one end.