Tea oil extraction process

Abstract

The invention relates to the technical field of tea oil preparation, and particularly provides a tea oil extraction process which comprises the following steps: selecting qualified tea oil fruits, obtaining tea oil seeds from the tea oil fruits, and cleaning and drying the tea oil seeds; performing high-temperature sterilization on the dried tea oilseeds through a steam machine; pressing the crushed tea oilseeds into pieces through a rolling mill, and crushing the tea oilseeds pressed into pieces through a crusher; the crushed tea oilseeds are steamed and fried with a steaming and frying pot, so that the water content in the tea oilseeds is reduced to about 1%-3%; pressing the crushed tea oilseeds into cakes through a rolling mill to obtain tea cakes; the tea cakes are put into squeezing equipment to squeeze out oil, it is guaranteed that the tea cakes are automatically discharged, and after oil is discharged, tea oil residues remaining in the squeezing equipment are cleaned again in a secondary oil discharging mode; and in the squeezing step, grease left on the positioning seat during squeezing in the previous batch is synchronously cleaned. Compared with the prior art, grease in the barrel can be thoroughly discharged after the squeezing process is finished.

Description

Technical Field

[0001] The present invention relates to the technical field of sampling for tea oil production, and particularly to a tea oil extraction process. Background Art

[0002] Tea oil, also known as camellia oil, is extracted from the seeds of the camellia tree of the camellia genus in the camellia family. Tea oil is extracted by cold pressing or hot pressing. The tea cake is placed in a pressing device, pressure is applied to the tea cake to cause mutual extrusion between the tea cakes, and the extrusion effect is used to squeeze out the oil from the oil cake. After the tea cake is pressed for oil extraction, with the extrusion mechanism withdrawn, the tea cake still remains in the pressing barrel, which is inconvenient for manual cleaning. Moreover, after the tea oil is discharged, part of the tea oil still remains in the pressing barrel and is not cleaned for a long time, which is prone to deterioration and causes waste. Summary of the Invention

[0003] To solve the above problems, the present invention provides a tea oil extraction process, which includes the following steps:

[0004] Step S01: Select qualified tea oil fruits, obtain tea oil seeds from the tea oil fruits, and wash and dry the tea oil seeds until the water content reaches 12% - 14% or less;

[0005] Step S02: Sterilize the dried tea oil seeds at high temperature through a steam engine;

[0006] Step S03: Press the crushed tea oil seeds into flakes through a rolling mill, and then crush the tea oil seeds pressed into flakes through a crusher;

[0007] Step S04: Use a temperature of 120 - 130 °C to steam and fry the crushed tea oil seeds in a steaming and frying pan to reduce the water content in the tea oil seeds to about 1% - 3%;

[0008] Step S05: Then press the crushed tea oil seeds into cakes through a rolling mill to obtain tea cakes;

[0009] Step S06: Load the tea cakes into a pressing device to extract oil, and ensure that the tea cakes are automatically discharged. After the oil is extracted, through a secondary oil extraction method, the tea oil residue remaining in the pressing device is cleaned again;

[0010] Step S07: Detect the quality and pack and ship.

[0011] Further preferably, the pressing device includes vertical frames installed on both sides of the vertical base, and further includes a hydraulic mechanism fixed on the top of the vertical frames, and a pressing plate located above the pressing barrel is provided on the hydraulic mechanism.

[0012] Further preferably, the pressing device includes a vertical base, at the top of the vertical base there is a pressing barrel, around the pressing barrel there are provided several oil outlet grooves, at the top of the vertical base there is a discharging unit, the discharging unit surrounds the outer periphery of the bottom of the pressing barrel, on the discharging unit there is an oil outlet, between the pressing barrel and the vertical base there is a material discharging assembly, the vertical base is provided with an assembly cavity, the material discharging assembly includes a positioning seat, a material discharging rod and a material discharging seat, the positioning seat is fixed in the assembly cavity, and the top surface of the positioning seat is close to the cavity bottom of the pressing barrel, on the positioning seat there are opened a plurality of positioning holes in an annular array, the material discharging rods are several in number, and each material discharging rod is slidably fitted in one of the positioning holes correspondingly, the material discharging seat is circular and slides in the pressing barrel, the tops of the material discharging rods are commonly connected to the bottom surface of the material discharging seat, the material discharging seat can move up and down along the pressing barrel driven by the material discharging rods, between the bottom surface of the material discharging seat and the top surface of the positioning seat there are elastically connected several springs, each spring is correspondingly sleeved on one of the material discharging rods, in the middle of the positioning seat there is opened an oil cleaning hole, after the pressing device discharges oil outwards from the outside through the oil outlet, it also discharges the tea oil remaining in the pressing barrel outwards from the inside through the oil cleaning hole, the pressing device further includes a control assembly provided on the positioning seat and the material discharging seat, the control assembly includes a control seat provided in the oil cleaning hole, and further includes a discharge hole which penetrates through the positioning seat from the oil cleaning hole and penetrates to the outside of the vertical base, the discharge hole communicates with the oil cleaning hole.

[0013] Further preferably, on the bottom surface of the positioning seat there is opened an upwardly concave assembly opening, in the assembly opening there is fixed a lining plate, the lining plate covers the bottom of the oil cleaning hole, on the lining plate there is opened a through hole which communicates with the oil cleaning hole up and down, at the top end of the control seat there is an upper seat sealed in the oil cleaning hole, at the bottom end of the control seat there is a lifting rod which passes downwards through the through hole to the lower part of the positioning seat, the oil cleaning hole is filled with a return spring, the return spring is sleeved on the lifting rod, the top end of the return spring is restricted on the upper seat, the bottom end of the return spring is restricted on the control seat, the discharge hole is divided into a first hole part and a second hole part, the first hole part is opened from the side part of the upper seat to the top surface of the upper seat, the second hole part is opened from the oil cleaning hole to the outside of the vertical base, on the bottom surface of the material discharging seat there is fixed a vertically downward top rod, the top rod and the upper seat are coaxial.

[0014] Further preferably, the top rod is a pipe fitting, on the top rod there are opened several infiltration holes in an annular array, the several infiltration holes communicate with the pipe cavity of the top rod.

[0015] Further preferably, the second hole portion is an inclined hole that gradually slopes downward from the inside to the outside, and the outer end of the second hole portion is located below the oil outlet.

[0016] Further preferably, a vertically upward orientation sleeve is fixed in the assembly cavity. There are several such orientation sleeves, and each orientation sleeve corresponds to being below one of the positioning holes. The bottom end of the ejection rod is inserted from the positioning hole into the orientation sleeve, and a piston ring is provided at the bottom end of the ejection rod.

[0017] The beneficial effects of the present invention compared with the prior art are as follows:

[0018] After the tea cake is pressed and discharged, it cannot be guaranteed that the oil in the pressing barrel completely flows into the discharge unit through the oil groove. Therefore, in order to reduce waste, after the tea cake is discharged, the hydraulic mechanism is started to drive the pressing plate to enter the pressing barrel again. The pressing plate descends without load, the pressing plate drives the ejection seat to descend without load, the ejection seat drives the ejector rod to descend, the bottom end of the ejector rod abuts against the upper seat, and the upper seat is pushed to continue descending, forcing the first hole portion and the second hole portion on the upper seat to coincide. At this time, the oil remaining on the positioning seat is discharged outward through the coincident first hole portion and second hole portion. The outer end of the second hole portion is located at the bottom side of the oil outlet. Therefore, when a receiving device is arranged below the oil outlet, these two parts of oil are all collected. Of course, during the actual oil pressing process, the first batch of tea cakes is placed in the pressing barrel for oil pressing and discharging, and then through the above-mentioned ejection method, the tea cakes are discharged. When the second batch of tea cakes is placed in the pressing barrel for oil pressing and discharging, as the ejection seat drives the ejector rod to descend, the ejector rod directly abuts against the upper seat to make the upper seat descend, so that the first hole portion and the second hole portion coincide, and the oil remaining on the positioning seat during the oil pressing of the previous batch of tea cakes is synchronously cleaned. And so on, when the third batch, the Nth batch of tea cakes are pressed and discharged, the oil remaining on the positioning seat during the pressing of the previous batch is synchronously cleaned. Compared with the prior art, after the pressing process is completed, it can be ensured that the oil in the barrel is completely discharged. Description of the Drawings

[0019] Figure 1 It is a schematic diagram from the bottom view perspective of a pressing device used in a tea oil extraction process provided by an embodiment of the present invention;

[0020] Figure 2 It is from Figure 1 in the left view plane schematic diagram led out by the embodiment of the present invention;

[0021] Figure 3 It is from Figure 1 in the top view plane schematic diagram led out by the embodiment of the present invention;

[0022] Figure 4 It is the plane schematic diagram after the A part led out by the embodiment of the present invention Figure 3 is cut open;

[0023] Figure 5 This is a schematic view from a top-down perspective after removing part of the pressing barrel and the discharging seat in the embodiment of the present invention;

[0024] Figure 6 This is a schematic view in the embodiment of the present invention when part of the pressing barrel is retained while the discharging seat is removed;

[0025] Figure 7 This is in the embodiment of the present invention from Figure 5 A schematic view of the cut-out view led out;

[0026] Figure 8 This is in the embodiment of the present invention from Figure 1 A schematic view of the cut-out view led out;

[0027] Figure 9 This is in the embodiment of the present invention from Figure 8 An enlarged schematic view of part B led out.

[0028] In the figure: 1, vertical base; 2, pressing barrel; 3, oil outlet groove; 4, discharging unit; 5, oil outlet; 6, discharging assembly; 7, assembly cavity; 8, positioning seat; 9, discharging rod; 10, discharging seat; 11, positioning hole; 12, spring; 13, clear oil hole; 14, guiding sleeve; 15, piston ring; 16, control assembly; 17, control seat; 18, discharge hole; 181, first hole part; 182, second hole part; 19, assembly port; 20, lining plate; 21, through hole; 22, upper seat; 23, lifting rod; 24, return spring; 25, ejector rod; 26, vertical frame; 27, pressing plate; 28, seepage hole; 29, leakage hole 29. Specific Embodiments

[0029] The following will clearly and completely describe the above and other embodiments and advantages of the present invention with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of them.

[0030] In one embodiment, as Figures 1-9 shown:

[0031] This embodiment provides a tea oil extraction process, including the following steps:

[0032] Step S01, select qualified tea oil fruits, obtain tea oil seeds from the tea oil fruits, and wash and dry the tea oil seeds until the water content reaches 12% - 14% or less;

[0033] Step S02, sterilize the dried tea oil seeds at high temperature through a steam engine;

[0034] Step S03, roll the crushed tea oil seeds into flakes through a rolling mill, and then crush the rolled tea oil seeds through a crusher;

[0035] Step S04: Use a temperature of 120 - 130°C to steam and fry the crushed tea oil seeds in a steam cooking pot, reducing the moisture content in the tea oil seeds to about 1% - 3%.

[0036] Step S05: Then use a rollermill to press the crushed tea oil seeds into cakes to obtain tea cakes.

[0037] Step S06: Load the tea cakes into the pressing equipment to extract oil, and ensure that the tea cakes are automatically discharged. After oil extraction, use a secondary oil extraction method to clean the remaining tea oil residue in the pressing equipment again.

[0038] Step S07: Detect the quality and pack for shipment.

[0039] Further preferably, the pressing equipment includes vertical frames 26 installed on both sides of the vertical base 1, and also includes a hydraulic mechanism fixed to the top of the vertical frames 26. A pressing plate 27 is provided on the hydraulic mechanism above the pressing barrel 2.

[0040] Further preferably, the pressing equipment includes a vertical base 1. At the top of the vertical base 1 is provided a pressing barrel 2. A number of oil discharge grooves 3 are formed around the pressing barrel 2. At the top of the vertical base 1 is provided a discharge unit 4. The discharge unit 4 surrounds the bottom periphery of the pressing barrel 2. An oil outlet 5 is provided on the discharge unit 4. A material return assembly 6 is provided between the pressing barrel 2 and the vertical base 1. The vertical base 1 is provided with an assembly cavity 7. The material return assembly 6 includes a positioning seat 8, a material return rod 9, and a material return seat 10. The positioning seat 8 is fixed in the assembly cavity 7, and the top surface of the positioning seat 8 is close to the cavity bottom of the pressing barrel 2. A plurality of positioning holes 11 are formed in a circular array on the positioning seat 8. There are several material return rods 9, and each material return rod 9 is slidably fitted in a positioning hole 11. The material return seat 10 is circular and slides in the pressing barrel 2. A leakage hole 29 is formed on the material return seat 10. The top ends of the material return rods 9 are commonly connected to the bottom surface of the material return seat 10. Driven by the material return rods 9, the material return seat 10 can move up and down along the pressing barrel 2. A number of springs 12 are elastically connected between the bottom surface of the material return seat 10 and the top surface of the positioning seat 8. Each spring 12 is sleeved on a material return rod 9 correspondingly. An oil cleaning hole 13 is formed in the middle of the positioning seat 8. After the pressing equipment discharges oil externally through the oil outlet 5, the remaining tea oil in the pressing barrel 2 is also discharged externally through the oil cleaning hole 13. The pressing equipment further includes a control assembly 16 provided on the positioning seat 8 and the material return seat 10. The control assembly 16 includes a control seat 17 provided in the oil cleaning hole 13, and also includes a discharge hole 18 that penetrates through the positioning seat 8 from the oil cleaning hole 13 and extends to the outside of the vertical base 1. The discharge hole 18 communicates with the oil cleaning hole 13.

[0041] Further preferably, an assembly opening 19 recessed upward is formed in the bottom surface of the positioning seat 8. A lining plate 20 is fixed in the assembly opening 19. The lining plate 20 covers the bottom of the oil cleaning hole 13. A through hole 21 communicating with the oil cleaning hole 13 up and down is formed in the lining plate 20. An upper seat 22 sealed in the oil cleaning hole 13 is provided at the top end of the control seat 17. A lifting rod 23 extending downward through the through hole 21 to the lower part of the positioning seat 8 is provided at the bottom end of the control seat 17. The oil cleaning hole 13 is filled with a return spring 24. The return spring 24 is sleeved on the lifting rod 23. The top end of the return spring 24 is restricted on the upper seat 22. The bottom end of the return spring 24 is restricted on the control seat 17. The discharge hole 18 is divided into a first hole portion 181 and a second hole portion 182. The first hole portion 181 is formed from the side portion of the upper seat 22 to the top surface of the upper seat 22. The second hole portion 182 is formed from the oil cleaning hole 13 to the outside of the vertical base 1. A push rod 25 perpendicular to the bottom surface is fixed on the bottom surface of the blanking seat 10. The push rod 25 is coaxial with the upper seat 22.

[0042] Further preferably, the push rod 25 is a pipe fitting. A plurality of infiltration holes 28 are formed in the push rod 25 in a circumferential array. The plurality of infiltration holes 28 communicate with the lumen of the push rod 25.

[0043] Further preferably, the second hole portion 182 is an inclined hole gradually sloping downward from inside to outside. The outer end of the second hole portion 182 is located below the oil outlet 5.

[0044] Further preferably, a vertical upward guiding sleeve 14 is fixed in the assembly cavity 7. The guiding sleeves 14 are provided in plurality. Each guiding sleeve 14 corresponds to the lower part of a positioning hole 11. The bottom end of the blanking rod 9 is inserted into the guiding sleeve 14 from the positioning hole 11. A piston ring 15 is provided at the bottom end of the blanking rod 9.

[0045] In step S06, the structure of the pressing equipment used is as Figures 1 to 9As shown, in this process, multiple tea cakes are successively loaded into the pressing barrel 2. The hydraulic mechanism is started to drive the pressing plate 27 into the pressing barrel 2. As the pressing plate 27 continues to descend along the pressing barrel 2, the tea cake at the bottom drives the discharge seat 10 to descend, and the discharge seat 10 pushes the discharge rod 9 to descend. At this time, the spring 12 is compressed and shortened until the discharge seat 10 descends to the limit. At this time, the descent of the tea cake stops. As the pressing plate 27 continues to descend and continues to exert pressure on the tea cake, part of the oil in these tea cakes flows through the leakage holes 29 to the positioning seat 8, and then flows through the oil discharge groove 3 on the bottommost pressing barrel 2 into the discharge unit 4. Most of the oil directly flows through the oil discharge grooves 3 on all the pressing barrels 2 into the discharge unit 4, and finally is collected through the oil outlet 5 and discharged outward. Before that, a receiving device is placed outside the oil outlet 5 to collect the oil. In addition, after the oil extraction work is completed, the pressing plate 27 rises, the extrusion force acting on the tea cake disappears, the spring 12 resets upward and becomes longer, and uses its elasticity to push the discharge seat 10 to rise and reset. As the discharge seat 10 rises and moves away from the positioning seat 8, part of the oil will continue to leak through the leakage holes 29 to the positioning seat 8, and then flows from the oil discharge groove 3 of the pressing barrel 2 where the positioning seat 8 is located into the discharge unit 4. The discharge seat 10 drives the tea cake to rise along the pressing barrel 2, which is equivalent to discharging the defatted tea cake upward from the pressing barrel 2, and is equivalent to the oil in the tea cake continuing to leak downward. The spring 12 described in the present invention is only the first automatic discharge structure of the discharge seat 10. In actual assembly, the spring 12 and the discharge rod 9 can be replaced by a hydraulic rod and controlled through a hydraulic circuit. As is well known, after the tea cake is discharged, it cannot be guaranteed that all the oil in the pressing barrel 2 flows through the oil groove 3 into the discharge unit 4. Therefore, in order to reduce waste, after the tea cake is discharged, the hydraulic mechanism is started to drive the pressing plate 27 to enter the pressing barrel 2 again. At this time, the pressing plate 27 descends without load. The pressing plate 27 pushes the discharge seat 10 to descend without load, and the discharge seat 10 drives the ejector rod 25 to descend. The bottom end of the ejector rod 25 abuts against the upper seat 22 and pushes the upper seat 22 to continue descending, forcing the first hole part 181 and the second hole part 182 on the upper seat 22 to coincide. At this time, the oil remaining on the positioning seat 8 is discharged outward through the coincident first hole part 181 and second hole part 182. The outer end of the second hole part 182 is located at the bottom side of the oil outlet 5. Therefore, when a receiving device is arranged below the oil outlet 5, these two parts of oil are all collected. Of course, during the actual oil extraction process, the first batch of tea cakes is placed in the pressing barrel 2 for oil extraction. Then, through the above discharge method, the tea cakes are discharged. When the second batch of tea cakes is placed in the pressing barrel 2 for oil extraction, as the discharge seat 10 drives the ejector rod 25 to descend, the ejector rod 25 directly abuts against the upper seat 22 to make the upper seat 22 descend, so that the first hole part 181 and the second hole part 182 coincide, and the oil remaining on the positioning seat 8 when the previous batch of tea cakes was pressed for oil extraction is synchronously cleaned. And so on, when the third batch, the Nth batch of tea cakes are pressed for oil extraction, the oil remaining on the positioning seat 8 during the previous batch of pressing is synchronously cleaned.Compared with the prior art, after the pressing process is completed, it can ensure that the oil in the barrel is completely discharged.

[0046] The above orientation references do not represent the specific orientations of the components in this embodiment. This embodiment is only for the convenience of describing the solution and is set with relative descriptions with reference to the orientations in the figures. In essence, the specific orientations of the components are based on their actual installation, actual use, and the habitual orientation descriptions of those skilled in the art. This is hereby stated.

[0047] The specific implementation manners described above further elaborate on the invention purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above is only the specific implementation manner of the present invention and is not used to limit the protection scope of the present invention. In particular, for those skilled in the art, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A tea oil extraction process, characterized in that, It includes the following steps: Step S01: Select qualified tea oil fruits, obtain tea oil seeds from the tea oil fruits, and wash and dry the tea oil seeds until the water content reaches 12% - 14% or less; Step S02: Sterilize the dried tea oil seeds at high temperature by a steam machine; Step S03: Use a rolling mill to roll the crushed tea oil seeds into flakes, and then crush the rolled tea oil seeds through a crusher; Step S04: Use a temperature of 120 - 130 °C to steam and fry the crushed tea oil seeds in a steaming and frying pan, so that the water content in the tea oil seeds drops to about 1% - 3%; Step S05: Then use a rolling mill to press the crushed tea oil seeds into cakes to obtain tea cakes; Step S06: Load the tea cakes into a pressing device to extract oil, and ensure that the tea cakes are automatically discharged. After oil extraction, use a secondary oil extraction method to clean the remaining tea oil in the pressing device again; Step S07: Detect the quality and pack and ship.

2. The tea oil extraction process according to claim 1, characterized in that, The pressing device includes vertical frames (26) installed on both sides of the vertical base (1), and also includes a hydraulic mechanism fixed to the top of the vertical frames (26). A pressing plate (27) is provided on the hydraulic mechanism and is located above the pressing barrel (2).

3. The tea oil extraction process according to claim 1, characterized in that, The squeezing device includes a vertical base (1), a squeezing barrel (2) is provided at the top of the vertical base (1), a plurality of oil outlet grooves (3) are formed around the squeezing barrel (2), a discharging unit (4) is provided at the top of the vertical base (1), the discharging unit (4) surrounds the outer periphery of the bottom of the squeezing barrel (2), an oil outlet (5) is provided on the discharging unit (4), a material discharging assembly (6) is provided between the squeezing barrel (2) and the vertical base (1), the vertical base (1) is provided with an assembly cavity (7), the material discharging assembly (6) includes a positioning seat (8), a material discharging rod (9) and a material discharging seat (10), the positioning seat (8) is fixed in the assembly cavity (7), and the top surface of the positioning seat (8) is close to the bottom of the cavity of the squeezing barrel (2), a plurality of positioning holes (11) are formed in an annular array on the positioning seat (8), the material discharging rods (9) are several, and each material discharging rod (9) is slidably fitted in a corresponding positioning hole (11), the material discharging seat (10) is circular and slides in the squeezing barrel (2), a leakage hole (29) is formed in the material discharging seat (10), the tops of the material discharging rods (9) are commonly connected to the bottom surface of the material discharging seat (10), the material discharging seat (10) can move up and down along the squeezing barrel (2) under the drive of the material discharging rods (9), a plurality of springs (12) are elastically connected between the bottom surface of the material discharging seat (10) and the top surface of the positioning seat (8), and each spring (12) is sleeved on a corresponding material discharging rod (9), a clear oil hole (13) is formed in the middle of the positioning seat (8), after the squeezing device discharges oil outwards from the outside through the oil outlet (5), the tea oil remaining in the squeezing barrel (2) is also discharged outwards from the inside through the clear oil hole (13) through the clear oil hole (13), the squeezing device further includes a control assembly (16) arranged on the positioning seat (8) and the material discharging seat (10), the control assembly (16) includes a control seat (17) arranged in the clear oil hole (13), and further includes a discharge hole (18) that penetrates through the positioning seat (8) from the clear oil hole (13) and penetrates to the outside of the vertical base (1), and the discharge hole (18) communicates with the clear oil hole (13).

4. The tea oil extraction process according to claim 3, characterized in that, On the bottom surface of the positioning seat (8), there is an upwardly concave assembly opening (19). A lining plate (20) is fixed in the assembly opening (19). The lining plate (20) covers the bottom of the clear oil hole (13). A through hole (21) that communicates with the clear oil hole (13) up and down is provided on the lining plate (20). At the top end of the control seat (17), there is an upper seat (22) sealed in the clear oil hole (13). At the bottom end of the control seat (17), there is a lifting rod (23) that passes downward through the through hole (21) to reach below the positioning seat (8). The clear oil hole (13) is filled with a return spring (24). The return spring (24) is sleeved on the lifting rod (23). The top end of the return spring (24) is restricted on the upper seat (22), and the bottom end of the return spring (24) is restricted on the control seat (17). The discharge hole (18) is divided into a first hole part (181) and a second hole part (182). The first hole part (181) is opened from the side of the upper seat (22) to the top surface of the upper seat (22). The second hole part (182) is opened from the clear oil hole (13) to outside the vertical base (1). On the bottom surface of the material discharging seat (10), there is a vertically downward push rod (25). The push rod (25) and the upper seat (22) are coaxial.

5. The tea oil extraction process according to claim 2, wherein The push rod (25) is a pipe fitting. A plurality of infiltration holes (28) are annularly arrayed on the push rod (25). The plurality of infiltration holes (28) communicate with the lumen of the push rod (25).

6. The tea oil extraction process according to claim 2, characterized in that, The second hole part (182) is an inclined hole that gradually slopes downward from inside to outside. The outer end of the second hole part (182) is located below the oil outlet (5).

7. The tea oil extraction process according to claim 2, characterized in that, In the assembly cavity (7), there is a vertically upward orientation sleeve (14) fixed. The number of the orientation sleeves (14) is several. Each orientation sleeve (14) corresponds to be below a positioning hole (11). The bottom end of the material discharging rod (9) is inserted from the positioning hole (11) into the orientation sleeve (14). A piston ring (15) is provided at the bottom end of the material discharging rod (9).

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