A kind of jackfruit shell volatile oil extraction with squeezing device and separation method

Abstract

A kind of Atal shell volatile oil extraction is extracted with squeezing device and separation method, the squeezing device includes base, fixed installation is positioned in the pipe in the upper portion of base, fixedly arranged in the pressing filter tube of the one end of positioning pipe, and the screw rod is movably arranged in the inside of positioning pipe and pressing filter tube, and first motor is used to drive screw rod rotation, the inner diameter of pressing filter tube is less than the inner diameter of positioning pipe, a plurality of filter holes are opened in the ring side of pressing filter tube, first filter assembly with compression resistance and anti-blocking capacity is fixedly arranged between positioning pipe and pressing filter tube, second filter assembly is arranged on pressing filter tube, the inside of first filter assembly is opened with rolling groove and liquid guide chamber, first filter assembly includes inner half pipe and outer half pipe fixedly installed between positioning pipe and pressing filter tube, and rolling ball movably arranged in the inside of rolling groove, rolling groove, rolling ball and oil guide groove cooperate for filtering;The setting of above-mentioned squeezing device through inner half pipe and outer half pipe, it is convenient to improve the overall compression resistance of first filter assembly, so that deformation does not occur in the squeezing process of Atal shell, oil is discharged through the gap between rolling ball and rolling groove, and oil is discharged through oil guide groove, and by rolling ball rolling in rolling groove, the impurities adhered at rolling groove can be squeezed out by rolling, so that the problem that rolling groove is blocked does not occur.

Description

Technical Field

[0001] This invention belongs to the field of mangosteen shell oil extraction, and in particular relates to a pressing device and separation method for extracting volatile oil from mangosteen shells. Background Technology

[0002] Mangosteen shells can clear heat and detoxify, promote diuresis and stop diarrhea. They contain a large amount of tannic acid, which can help treat acne and skin wounds, thus having great value. Mangosteen shells are usually used to extract useful substances by pressing oil.

[0003] Existing pressing devices typically use pressure filtration to extract oil from mangosteen shells. During the pressing process, the mangosteen shells usually come into contact with the filter screen, and the shells exert considerable pressure on the screen. However, the filter screen has a porous structure, resulting in low overall strength and easy deformation under pressure. This makes the filter screen less resistant to pressure, causing it to deform or even break during the pressing process. Furthermore, the high pressure caused by the mangosteen shells clogging the mesh can also lead to filter clogging and reduced filtration efficiency.

[0004] Therefore, existing pressing devices have problems such as low filter screen pressure resistance and easy clogging. To address this, we propose a pressing device and separation method for extracting volatile oil from mangosteen shells. Summary of the Invention

[0005] The purpose of this invention is to provide a pressing device and separation method for extracting volatile oil from mangosteen shells, which can effectively solve the problems of low pressure resistance of the filter screen and easy clogging of the filter screen in the existing pressing devices mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a pressing device for extracting volatile oil from mangosteen shells, comprising a base, a positioning tube fixedly installed above the base, a filter tube fixedly installed at one end of the positioning tube, a screw rod movably installed inside the positioning tube and the filter tube, and a first motor for driving the screw rod to rotate. The inner diameter of the filter tube is smaller than that of the positioning tube. The filter tube has multiple filter holes on its circumferential side. Two first filter components with pressure resistance and anti-clogging capabilities are fixedly installed between the positioning tube and the filter tube. The two first filter components are symmetrically arranged between the positioning tube and the filter tube. A second filter component is installed on the filter tube. The second filter component is used to reinforce the filter tube and to prevent the filter holes from clogging. The first filter assembly has a trough and a liquid guiding chamber inside, which are connected. The first filter assembly includes an inner half-pipe and an outer half-pipe fixedly installed between the positioning tube and the filter tube, a ball bearing movably installed inside the trough, and a support block fixedly installed inside the liquid guiding chamber. The trough is opened inside the inner half-pipe and the outer half-pipe and is evenly distributed on the inner half-pipe and the outer half-pipe. The ball bearing and the trough are fitted with a clearance. The liquid guiding chamber is opened on the adjacent side of the inner half-pipe and the outer half-pipe. The liquid guiding chamber is used to collect the pressed oil. The support block is evenly distributed inside the liquid guiding chamber. The ball bearing and the ring side are provided with an oil guiding groove for oil discharge. The inner half-pipe, the support block and the outer half-pipe are used to improve the overall strength of the first filter assembly. The trough, the ball bearing and the oil guiding groove cooperate for filtration. The ball bearing and the oil guiding groove are also used to prevent the trough from clogging.

[0007] The inner and outer half-pipes have wall thicknesses between 5-10mm, providing strong pressure resistance and preventing deformation during the pressing of mangosteen shells. The inner and outer half-pipes filter through the gap between the ball bearings and the groove, and also carry the oil out through the oil guide groove, thus achieving the filtering effect. This structure facilitates the improvement of the overall strength of the first filter component, resulting in higher pressure resistance and solving the deformation problem that occurs during traditional filter pressing.

[0008] The gap between the ball bearing and the groove is between 0.2-0.8mm, while the depth of the oil guide groove is between 0.5-1mm. The inner wall of the oil guide groove has an arc-shaped cross-section, making it difficult for mangosteen shells to pass through. At the same time, the ball bearing rolls in the groove, squeezing out impurities attached to the groove and preventing clogging. When the mangosteen shell passes through the ball bearing, there is a gap between the shell and the ball bearing, which facilitates contact with the extracted oil. This increases the contact surface between the extracted oil and the ball bearing, making it easier for the extracted oil to be discharged from the groove during the rotation of the ball bearing. Therefore, this structure increases the oil extraction efficiency and makes the oil extraction effect better.

[0009] Preferably, the plurality of filter holes are evenly spaced on the circumferential side of the filter press tube. The second filtration assembly includes a spiral liquid guiding block movably disposed on the circumferential side of the filter press tube and a liquid guiding tube fixedly disposed on the circumferential side of the spiral liquid guiding block. The inner wall of the spiral liquid guiding block is in contact with the outer wall of the filter press tube and rotates on the circumferential side of the filter press tube. Figure 11As shown, multiple filter holes form an assembly, which is also evenly distributed on the circumferential side of the filter press tube. There are no filter holes between adjacent assemblies, giving the filter press tube greater strength between adjacent assemblies and making it less prone to deformation. Simultaneously, the spiral liquid-guiding block adheres to the circumferential side of the filter press tube. When the pressure generated by the mangosteen shell inside the filter press tube is significant, the spiral liquid-guiding block exerts a reverse pressure on the filter press tube, making the pressure inside and outside the filter press tube more uniform, thus preventing the filter press tube from deforming due to excessive internal pressure. The extracted oil reduces friction between the filter press tube and the spiral liquid-guiding block, facilitating the rotation of the spiral liquid-guiding block on the filter press tube. Moreover, during rotation, the spiral liquid-guiding block scrapes away impurities adhering to the filter holes inside the filter press tube, helping to prevent filter hole clogging. Therefore, this structure solves the problems of existing filter screens' low pressure resistance leading to easy deformation under pressure, and the problem of easy clogging during the pressing process. Furthermore, due to continuous oil extraction, less oil is extracted closer to the outlet of the filter press tube. The spiral guide block and guide tube transport the extracted oil to the first filter assembly, which facilitates more complete oil extraction from the mangosteen shells at the outlet of the filter press tube.

[0010] Preferably, the second filter assembly further includes reinforcing ribs fixedly installed on the inner wall of the filter press tube, the reinforcing ribs being evenly spaced inside the filter press tube. The reinforcing ribs facilitate further strengthening of the filter press tube, while also allowing the mangosteen shells inside the filter press tube to generate greater extrusion pressure at the reinforcing ribs, so that the oil extracted at the reinforcing ribs can be better discharged to the filter holes, resulting in better oil extraction.

[0011] Preferably, the second filter assembly further includes a movable tube fixedly installed on the side of the liquid guide tube away from the first filter assembly, and a second motor for driving the movable tube to rotate. The movable tube is movably disposed on the side of the filter press tube, and the second motor is fixedly installed on one side of one of the bases. The second motor drives the movable tube to rotate, which in turn facilitates the rotation of the liquid guide tube and the spiral liquid guide block. Preferably, a pressure boosting pipe is fixedly installed at one end of the inner and outer half-tubes near the filter press tube, and the end of the pressure boosting pipe near the filter press tube is fixedly connected to the filter press tube. The pressure boosting pipe facilitates the even introduction of mangosteen shells into the filter press tube.

[0012] Preferably, the longitudinal section of the reinforcing rib is triangular. This reduces the contact area between the reinforcing rib and the mangosteen shell, thereby reducing friction and facilitating the removal of the mangosteen shell.

[0013] Preferably, a liquid receiving tank is fixedly installed on the lower side of the booster pipe. The liquid receiving tank is located directly below the first and second filter components and also supports the booster pipe. A valve is fixedly installed on one side of the liquid receiving tank. The liquid receiving tank facilitates the collection of the extracted oil and provides support for the entire device.

[0014] Preferably, a feed hopper is fixedly installed at the feed end of the positioning tube. The feed hopper facilitates feeding of the device.

[0015] Preferably, the oil guide grooves are evenly spaced on the circumferential side of the ball. This facilitates better oil discharge from the oil guide grooves on the circumferential side of the ball and also promotes the rolling of the ball.

[0016] A separation method for extracting volatile oil from mangosteen shells using a pressing apparatus includes the following steps: S1. Add the mangosteen shells to be pressed from the feed hopper. The first motor conveys the mangosteen shells inside the positioning tube through the screw rod. The closer to the filter tube, the greater the pressure between the mangosteen shells inside the positioning tube. At the first filter assembly, the pressure between the mangosteen shells reaches the level of squeezing out oil. S2. Inside the inner half-pipe, during the process of the screw conveying the mangosteen shells, the friction between the mangosteen shells and the balls causes the balls to roll inside the groove. During the rolling of the balls, the oil extracted from the mangosteen shells enters the oil guide groove and enters the groove through the rotation of the balls. The extracted oil enters the liquid guide chamber and continuously gathers, and finally is discharged from the outer side of the outer half-pipe. S3. The mangosteen shells that have been pressed once are continued to be conveyed to the second filter assembly. The mangosteen shells are subjected to greater pressure to extract the remaining oil. The extracted oil is discharged through the filter holes. The spiral liquid guide block and the liquid guide tube rotate to guide the extracted oil to the side close to the first filter assembly and flow out at the opening of the liquid guide tube. All the extracted oil is collected by the liquid receiving tank. S4. After the mangosteen shells have been pressed for oil, they eventually form an oil cake and are discharged from the outlet end of the filter press tube.

[0017] The present invention has the following beneficial effects: 1. The present invention improves the overall compressive strength of the first filter assembly by setting the inner and outer half-pipes, so that it will not deform during the pressing of mangosteen shells. The inner and outer half-pipes filter through the gap between the ball and the groove, and carry the oil out through the oil guide groove, thereby playing a filtering role. This design improves the overall strength of the first filter assembly and solves the problem of deformation that occurs during the pressing of traditional filter screens.

[0018] 2. This invention discharges oil through the gap between the ball bearing and the groove, and simultaneously through the oil guide groove, making it difficult for the mangosteen shell to pass through. Furthermore, the rolling of the ball bearing within the groove squeezes out impurities adhering to it, preventing clogging. Simultaneously, the gap between the mangosteen shell and the ball bearing facilitates contact with the extracted oil, increasing the contact area between the oil and the ball bearing. This allows the extracted oil to be discharged from the groove during the ball bearing's rotation, thus increasing oil extraction efficiency and improving the oil extraction effect. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a perspective view of a pressing apparatus for extracting volatile oil from mangosteen shells according to the present invention; Figure 2 This is an exploded view of the first filter assembly of a pressing device for extracting volatile oil from mangosteen shells according to the present invention; Figure 3 This is a perspective view of the first filter assembly of a pressing apparatus for extracting volatile oil from mangosteen shells according to the present invention; Figure 4 This is a front sectional view of a pressing apparatus for extracting volatile oil from mangosteen shells according to the present invention; Figure 5 This invention relates to a pressing apparatus for extracting volatile oil from mangosteen shells. Figure 4 Enlarged view of section A in the middle; Figure 6 This invention relates to a pressing apparatus for extracting volatile oil from mangosteen shells. Figure 4 Enlarged view of section B; Figure 7 This is a planar cross-sectional view of the ball bearings of a pressing device for extracting volatile oil from mangosteen shells according to the present invention; Figure 8 This is a perspective view of the first filter assembly of a pressing apparatus for extracting volatile oil from mangosteen shells according to the present invention; Figure 9 This is a perspective view of the spiral liquid guide block of a pressing device for extracting volatile oil from mangosteen shells according to the present invention; Figure 10 A perspective view of the filter tube and its structure in a pressing apparatus for extracting volatile oil from mangosteen shells according to the present invention; Figure 11 This is a perspective view of the pressure tube of a pressing device for extracting volatile oil from mangosteen shells according to the present invention.

[0021] The attached diagram lists the components represented by each number as follows: 1. Base; 2. Positioning tube; 3. Filter press tube; 4. Screw rod; 5. First motor; 6. Filter hole; 7. Inner half tube; 8. Outer half tube; 9. Groove; 10. Liquid guiding chamber; 11. Ball bearing; 12. Support block; 13. Oil guiding groove; 14. Spiral liquid guiding block; 15. Liquid guiding pipe; 16. Movable pipe; 17. Second motor; 18. Pressure boosting pipe; 19. Liquid receiving tank; 20. Valve; 21. Feed hopper; 22. Reinforcing rib. Detailed Implementation

[0022] 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.

[0023] In the description of this invention, it should be understood that the terms "upper," "middle," "outer," "inner," etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention. Example

[0024] Please see Figure 1-11 As shown, the present invention is a pressing device for extracting volatile oil from mangosteen shells, including a base 1, a positioning tube 2 fixedly installed above the base 1, a filter press tube 3 fixedly installed at one end of the positioning tube 2, a screw rod 4 movably installed inside the positioning tube 2 and the filter press tube 3, and a first motor 5 for driving the screw rod 4 to rotate. The inner diameter of the filter press tube 3 is smaller than the inner diameter of the positioning tube 2. Multiple filter holes 6 are opened on the circumferential side of the filter press tube 3. Two first filter components with pressure resistance and anti-clogging ability are fixedly installed between the positioning tube 2 and the filter press tube 3. The two first filter components are symmetrically arranged between the positioning tube 2 and the filter press tube 3. A second filter component is installed on the filter press tube 3. The second filter component is used to reinforce the filter press tube 3 and to prevent the filter holes 6 from clogging. The first filter assembly has a groove 9 and a liquid guiding chamber 10 inside, which are connected. The first filter assembly includes an inner half-pipe 7 and an outer half-pipe 8 fixedly installed between the positioning tube 2 and the filter press tube 3, a ball bearing 11 movably installed inside the groove 9, and a support block 12 fixedly installed inside the liquid guiding chamber 10. The groove 9 is opened inside the inner half-pipe 7 and the outer half-pipe 8 and is evenly distributed on the inner half-pipe 7 and the outer half-pipe 8. The ball bearing 11 and the groove 9 are fitted with a clearance. The liquid guiding chamber 10 is opened on the adjacent side of the inner half-pipe 7 and the outer half-pipe 8. The liquid guiding chamber 10 is used to collect the pressed oil. The support block 12 is evenly distributed inside the liquid guiding chamber 10. The ball bearing 11 and the ring side are provided with an oil guiding groove 13 for oil discharge. The inner half-pipe 7, the support block 12 and the outer half-pipe 8 are used to improve the overall strength of the first filter assembly. The groove 9, the ball bearing 11 and the oil guiding groove 13 cooperate for filtration. The ball bearing 11 and the oil guiding groove 13 are also used to prevent the groove 9 from clogging.

[0025] The inner half-pipe 7 and the outer half-pipe 8 both have a wall thickness between 5-10mm, exhibiting strong compressive strength and preventing deformation during the pressing of mangosteen shells. The inner half-pipe 7 and the outer half-pipe 8 filter through the gap between the ball bearings 11 and the groove 9, and also carry the oil out through the oil guide groove 13, thus achieving a filtering effect. This structure facilitates improved overall strength of the first filter assembly, resulting in higher compressive strength and solving the deformation problem that occurs during traditional filter pressing. The support block 12 provides support for the inner half-pipe 7 from the outer half-pipe 8.

[0026] The gap between the ball bearing 11 and the groove 9 is between 0.2-0.8mm, while the depth of the oil guide groove 13 is between 0.5-1mm, and the inner wall cross-section of the oil guide groove 13 is arc-shaped, making it difficult for mangosteen shells to pass through. At the same time, the ball bearing 11 rolls in the groove 9, which can squeeze out the impurities attached to the groove 9 through rolling, so that the groove 9 will not be blocked. When the mangosteen shell passes through the ball bearing 11, there will be a gap between the mangosteen shell and the ball bearing 11. This gap facilitates contact with the extracted oil, thereby increasing the contact surface between the extracted oil and the ball bearing 11. It is also convenient for the extracted oil to be discharged from the groove 9 during the rotation of the ball bearing 11. Therefore, this structure increases the oil extraction efficiency and makes the oil extraction effect better.

[0027] In this design, multiple filter holes 6 are evenly spaced on the circumferential side of the filter press tube 3. The second filtration assembly includes a spiral liquid guiding block 14 movably disposed on the circumferential side of the filter press tube 3 and a liquid guiding tube 15 fixedly disposed on the circumferential side of the spiral liquid guiding block 14. The inner wall of the spiral liquid guiding block 14 is in contact with the outer wall of the filter press tube 3 and rotates on the circumferential side of the filter press tube 3. Figure 11 As shown, multiple filter holes 6 form an assembly, which is also evenly distributed on the circumferential side of the filter press tube 3. There are no filter holes 6 between adjacent assemblies, giving the filter press tube 3 greater strength between adjacent assemblies and making it less prone to deformation. Simultaneously, the spiral liquid guiding block 14 adheres to the circumferential side of the filter press tube 3. When the pressure generated by the mangosteen shell inside the filter press tube 3 is significant, the spiral liquid guiding block 14 exerts reverse pressure on the filter press tube 3, making the pressure inside and outside the filter press tube 3 more uniform, thus preventing deformation due to excessive internal pressure. The extracted oil reduces friction between the filter press tube 3 and the spiral liquid guiding block 14, facilitating the rotation of the spiral liquid guiding block 14 on the filter press tube 3. Furthermore, during rotation, the spiral liquid guiding block 14 scrapes away impurities adhering to the filter holes 6 inside the filter press tube 3, preventing clogging and improving filtration efficiency. Therefore, this structure solves the problems of low pressure resistance leading to easy deformation under pressure and easy clogging during the pressing process in existing filter screens. Furthermore, due to continuous oil extraction, less oil is extracted closer to the outlet of the filter press tube 3. The spiral liquid guide block 14 and the liquid guide tube 15 transport the extracted oil to the first filter assembly side, which facilitates more complete oil extraction from the mangosteen shells at the outlet of the filter press tube 3.

[0028] The second filtration assembly also includes reinforcing ribs 22 fixedly installed on the inner wall of the filter press tube 3. The reinforcing ribs 22 are evenly distributed inside the filter press tube 3. The reinforcing ribs 22 further enhance the strength of the filter press tube 3, and at the same time, they generate greater pressure on the mangosteen shells inside the filter press tube 3 at the reinforcing ribs 22. This allows the oil extracted at the reinforcing ribs 22 to be better discharged to the filter holes 6, resulting in better oil extraction and improved filtration efficiency.

[0029] The second filter assembly further includes a movable tube 16 fixedly installed on the side of the liquid guide tube 15 away from the first filter assembly, and a second motor 17 for driving the movable tube 16 to rotate. The movable tube 16 is movably disposed on the side of the filter press tube 3, and the second motor 17 is fixedly installed on one side of one of the bases 1. The second motor 17 drives the movable tube 16 to rotate, which in turn drives the liquid guide tube 15 and the spiral liquid guide block 14 to rotate. Among them, the inner half-tube 7 and the outer half-tube 8 are fixedly installed with a pressure boosting pipe 18 at one end near the filter press tube 3, and the end of the pressure boosting pipe 18 near the filter press tube 3 is fixedly connected to the filter press tube 3. The pressure boosting pipe 18 facilitates the even introduction of mangosteen shells into the filter press tube 3.

[0030] The longitudinal section of the reinforcing rib 22 is triangular. This reduces the contact area between the reinforcing rib 22 and the mangosteen shell, thereby reducing friction and facilitating the removal of the mangosteen shell.

[0031] A liquid receiving tank 19 is fixedly installed on the lower side of the booster pipe 18. The liquid receiving tank 19 is located directly below the first and second filter components and also supports the booster pipe 18. A valve 20 is fixedly installed on one side of the liquid receiving tank 19. The liquid receiving tank 19 facilitates the collection of the extracted oil and provides support for the entire device.

[0032] The feeding end of the positioning tube 2 is fixedly equipped with a feeding bin 21. The feeding bin 21 facilitates the feeding of the device.

[0033] The oil guide grooves 13 are evenly distributed on the circumferential side of the ball 11. This facilitates better oil discharge from the oil guide grooves 13 on the circumferential side of the ball 11 and also facilitates the rolling of the ball 11.

[0034] A pressing device for extracting volatile oil from mangosteen shells, the method of use and working principle of which are as follows: S1. Add the mangosteen shells to be pressed from the feed hopper 21. The first motor 5 conveys the mangosteen shells inside the positioning tube 2 through the screw rod 4. The closer to the filter tube 3, the greater the pressure between the mangosteen shells inside the positioning tube 2. At the first filter assembly, the pressure between the mangosteen shells reaches the level of squeezing out oil. S2. Inside the inner half-pipe 7, during the process of the screw rod 4 conveying the mangosteen shells, the mangosteen shells and the ball bearings 11 rub against each other and drive the ball bearings 11 to roll inside the trough 9. During the rolling of the ball bearings 11, the oil extracted from the mangosteen shells enters the oil guide groove 13 and enters the trough 9 through the rotation of the ball bearings 11. The extracted oil enters the liquid guide chamber 10 and continuously converges, and finally is discharged from the outer side of the outer half-pipe 8. S3. The mangosteen shells that have been pressed once are continued to be conveyed to the second filter assembly. The mangosteen shells are subjected to greater pressure to extract the remaining oil. The extracted oil is discharged through the filter hole 6. The spiral liquid guide block 14 and the liquid guide tube 15 guide the extracted oil to the side close to the first filter assembly by rotation and flow out at the opening of the liquid guide tube 15. All the extracted oil is collected by the liquid receiving tank 19. S4. After the mangosteen shells have been pressed for oil, they eventually form an oil cake and are discharged from the outlet end of the filter press tube 3.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A pressing apparatus for extracting volatile oil from mangosteen shells, characterized in that: The system includes a base (1), a positioning tube (2) fixedly installed above the base (1), a filter press tube (3) fixedly installed at one end of the positioning tube (2), a screw rod (4) movably installed inside the positioning tube (2) and the filter press tube (3), and a first motor (5) for driving the screw rod (4) to rotate. The inner diameter of the filter press tube (3) is smaller than the inner diameter of the positioning tube (2). The filter press tube (3) has multiple filter holes (6) on its circumferential side. Two first filter components with pressure resistance and anti-clogging capabilities are fixedly installed between the positioning tube (2) and the filter press tube (3). Two first filter components are symmetrically arranged between the positioning tube (2) and the filter press tube (3). A second filter component is provided on the filter press tube (3). The second filter component is used to reinforce the filter press tube (3) and to prevent the filter holes (6) from being blocked. The second filter component includes a spiral liquid guide block (14) movably arranged on the annular side of the filter press tube (3) and a liquid guide tube (15) fixedly arranged on the annular side of the spiral liquid guide block (14). The inner wall of the spiral liquid guide block (14) is in contact with the outer wall of the filter press tube (3) and rotates on the annular side of the filter press tube (3). The first filter assembly has a groove (9) and a liquid guiding chamber (10) inside, which are connected. The first filter assembly includes an inner half-tube (7) and an outer half-tube (8) fixedly installed between the positioning tube (2) and the filter press tube (3), ball bearings (11) movably disposed inside the groove (9), and a support block (12) fixedly disposed inside the liquid guiding chamber (10). The groove (9) is opened inside the inner half-tube (7) and the outer half-tube (8) and is evenly distributed on the inner half-tube (7) and the outer half-tube (8). The ball bearings (11) The liquid guiding chamber (10) is opened on the adjacent side of the inner half-pipe (7) and the outer half-pipe (8) in a gap fit with the roller groove (9). The liquid guiding chamber (10) is used to collect the pressed oil. The support block (12) is evenly distributed inside the liquid guiding chamber (10). The circumferential side of the ball (11) is provided with an oil guiding groove (13) for oil discharge. The inner half-pipe (7), support block (12) and outer half-pipe (8) are used to improve the overall strength of the first filter assembly. The roller groove (9), ball (11) and oil guiding groove (13) are used for filtration. The ball (11) and oil guiding groove (13) are also used to prevent the roller groove (9) from clogging.

2. The pressing apparatus for extracting volatile oil from mangosteen shells according to claim 1, characterized in that: The multiple filter holes (6) are evenly spaced on the circumferential side of the filter press tube (3).

3. The pressing apparatus for extracting volatile oil from mangosteen shells according to claim 2, characterized in that: The second filter assembly also includes reinforcing ribs (22) fixedly installed on the inner wall of the filter press tube (3), the reinforcing ribs (22) being evenly spaced inside the filter press tube (3).

4. The pressing apparatus for extracting volatile oil from mangosteen shells according to claim 3, characterized in that: The second filter assembly also includes a movable tube (16) fixedly installed on the side of the liquid guide tube (15) away from the first filter assembly, and a second motor (17) for driving the movable tube (16) to rotate. The movable tube (16) is movably disposed on the side of the filter press tube (3), and the second motor (17) is fixedly installed on one side of one of the bases (1).

5. The pressing apparatus for extracting volatile oil from mangosteen shells according to claim 4, characterized in that: A booster pipe (18) is fixedly installed at one end of the inner half-pipe (7) and the outer half-pipe (8) near the filter press pipe (3), and the end of the booster pipe (18) near the filter press pipe (3) is fixedly connected to the filter press pipe (3).

6. The pressing apparatus for extracting volatile oil from mangosteen shells according to claim 5, characterized in that: The longitudinal section of the reinforcing rib (22) is a triangular structure.

7. The pressing apparatus for extracting volatile oil from mangosteen shells according to claim 6, characterized in that: A liquid receiving tank (19) is fixedly installed on the lower side of the booster pipe (18). The liquid receiving tank (19) is located directly below the first filter assembly and the second filter assembly, and the liquid receiving tank (19) also supports the booster pipe (18). A valve (20) is fixedly installed on one side of the liquid receiving tank (19).

8. The pressing apparatus for extracting volatile oil from mangosteen shells according to claim 7, characterized in that: The feeding end of the positioning tube (2) is fixedly equipped with a feeding bin (21).

9. A pressing apparatus for extracting volatile oil from mangosteen shells according to claim 8, characterized in that: The oil guide grooves (13) are evenly spaced on the circumferential side of the ball (11).

10. The separation method of the pressing apparatus for extracting volatile oil from mangosteen shells according to claim 9, comprising the following steps: S1. Add the mangosteen shells to be pressed from the feed hopper (21). The first motor (5) conveys the mangosteen shells inside the positioning tube (2) through the screw rod (4). The closer to the filter tube (3), the greater the pressure between the mangosteen shells inside the positioning tube (2). At the first filter assembly, the pressure between the mangosteen shells reaches the level of squeezing out oil. S2. Inside the inner half-pipe (7), during the process of the screw rod (4) conveying the mangosteen shell, the mangosteen shell and the ball (11) rub against each other and drive the ball (11) to roll inside the rolling groove (9). During the rolling of the ball (11), the oil extracted from the mangosteen shell enters the oil guide groove (13) and enters the rolling groove (9) through the rotation of the ball (11). The extracted oil enters the liquid guide chamber (10) and continuously converges, and finally is discharged from the outer side of the outer half-pipe (8). S3. The mangosteen shells that have been pressed once are continued to be transported to the second filter assembly. The mangosteen shells are subjected to greater pressure to extract the remaining oil. The extracted oil is discharged through the filter hole (6). The spiral liquid guide block (14) and the liquid guide tube (15) rotate to guide the extracted oil to the side close to the first filter assembly and flow out at the opening of the liquid guide tube (15). All the extracted oil is collected by the liquid receiving tank (19). S4. After the mangosteen shells have been pressed for oil, they eventually form an oil cake and are discharged from the outlet end of the filter press (3).

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