Device for separating pomace and puree after squeezing of olea europaea

Abstract

The utility model discloses a pomace and puree separating device after olive squeezing, and relates to the technical field of olive squeezing, the pomace and puree separating device comprises a bottom plate, a box body is welded on the outer wall of the top of the bottom plate, a box cover is arranged on the top of the box body, a separating assembly is rotatably installed on the inner wall of the bottom of the box body, and a squeezing assembly is installed on the inner wall of the top of the box cover. And the extrusion assembly is matched with the separation assembly. According to the olive oil filtering device, the first filtering cylinder, the second filtering cylinder, the third filtering cylinder and the fourth filtering cylinder are matched with one another, multi-stage filtering is carried out on olive oil, meanwhile, the filtering cylinders throw oil out through centrifugal force under high-speed rotation, then the oil is separated from pomace and puree, after oil-liquid separation is completed, the pomace and puree are squeezed through the squeezing ring, and the olive oil is filtered out. The multi-stage filtration and centrifugal separation are combined, so that the oil filtration is more comprehensive, the oil is cleaner, the pomace and the puree are extruded, and the oil is prevented from being left.

Description

Technical Field

[0001] The utility model relates to the technical field of olive pressing, in particular to a device for separating pomace and pulp from olives pressed. Background Art

[0002] Olive oil is a woody vegetable oil that is directly cold-pressed from fresh olive fruits. It does not undergo heating or chemical treatment and retains its natural nutrients. Olive oil is considered to be the most suitable oil for human nutrition discovered so far. The olive oil produced during the pressing process contains a large amount of oil residue and mud. After the olives are pressed, the olive oil needs to be processed to separate the pomace and mud from the olive oil. This operation requires the use of a separation device.

[0003] However, the existing separation device has certain shortcomings:

[0004] First, existing pomace and pulp separation devices mainly separate oil from pomace and pulp by gravity filtration. The oil separation speed is slow, the filtration time is long, and the filtration times are few, resulting in poor filtration effect. At the same time, during gravity filtration, the pomace and pulp in the olive oil may adhere to the surface of the filter component, causing clogging of the filter component.

[0005] Secondly, the pomace and puree after the existing olive oil is filtered still contains a large amount of oil, which will lead to oil waste if it is not processed;

[0006] Finally, after the existing separation device is used for separation, it is difficult to clean the separation filter component which has a large amount of fruit residue and fruit puree attached thereto, making it inconvenient to use. Utility Model Content

[0007] The purpose of this application is to provide a device for separating pomace and puree from olives after pressing, so as to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a device for separating pomace and puree after squeezing olive oil, comprising a bottom plate, a box body welded to the top outer wall of the bottom plate, a box cover provided on the top of the box body, a separation component rotatably installed on the inner wall of the bottom of the box body, an extrusion component installed on the inner wall of the top of the box cover, and the extrusion component adapted to the separation component, the separation component comprising a rotating groove opened on the inner wall of the bottom of the box body, a rotating disk rotatably installed on the inner wall of the rotating groove, a mounting disk being plugged into the top outer wall of the rotating disk, the mounting disk being adapted to the rotating disk, a first filter cartridge, a second filter cartridge, a third filter cartridge and a fourth filter cartridge being plugged into the top outer wall of the mounting disk, the first filter cartridge, the second filter cartridge, the third filter cartridge and the fourth filter cartridge being arranged in sequence from the inside to the outside, and the apertures of the first filter cartridge, the second filter cartridge, the third filter cartridge and the fourth filter cartridge are reduced in sequence.

[0009] Preferably, the extrusion assembly includes an extrusion ring welded to the bottom outer wall of the box cover, an oil inlet pipe is provided on the top of the box cover, the oil inlet pipe passes through the middle position of the extrusion ring, the end of the oil inlet pipe is at the same horizontal height as the middle position of the bottom outer wall of the extrusion ring, and the extrusion ring is connected to the first filter cartridge, the second filter cartridge, the third filter cartridge and the fourth filter cartridge.

[0010] Preferably, one end of the top outer wall of the base plate is rotatably connected to a support rod, a connecting pin is provided at the bottom of the support rod, a connecting hole adapted to the connecting pin is opened at the top of the base plate, the outer wall of the connecting pin and the inner wall of the connecting hole are both provided with anti-slip pads, there is friction between the connecting pin and the connecting hole, a mounting block is slidably installed on the outer wall of the support rod, and the mounting block is connected to the box cover.

[0011] Preferably, a driving slot is opened inside the bottom plate, and the driving slot is located below the box body. A first servo motor is installed inside the driving slot, and the output shaft of the first servo motor is connected to the rotating disk.

[0012] Preferably, an installation groove is provided on the top outer wall of the installation plate, and the installation groove is respectively adapted to the first filter cartridge, the second filter cartridge, the third filter cartridge and the fourth filter cartridge. A limiting hole is provided on the bottom inner wall of the installation groove, and the first filter cartridge, the second filter cartridge, the third filter cartridge and the fourth filter cartridge are all provided with limiting pins adapted to the limiting holes on the bottom outer walls.

[0013] Preferably, an oil drain pipe is provided at the bottom of the outer wall of one side of the box body, and an oil pump and a control valve are installed on the oil drain pipe. The control valve is located at the end of the oil drain pipe. A placement groove is provided on the top of the bottom plate, and a collection bucket is placed in the placement groove. The collection bucket is located below the oil drain pipe, and the collection bucket is adapted to the oil drain pipe. A protective pad adapted to the collection bucket is provided on the inner wall of the placement groove.

[0014] Preferably, a control panel and an observation window are provided on the outer wall of the box body. The control panel is located above the observation window, and the control panel is connected to the first servo motor and the oil pump through a wire.

[0015] Preferably, a lifting groove is provided on the inner wall of the support rod, the lifting groove is adapted to the mounting block, a threaded rod is rotatably installed on the inner wall of the lifting groove, the threaded rod is adapted to the lifting groove, the threaded rod is rotatably connected to the mounting block through a thread, a control groove is provided at the bottom of the support rod, a second servo motor is installed inside the control groove, and the output shaft of the second servo motor is connected to the threaded rod.

[0016] In summary, the technical effects and advantages of the utility model are:

[0017] 1. In the present invention, when working, the box cover and the box body are not in contact, and olive oil is poured into the first filter cartridge through the oil inlet pipe. The oil gradually diffuses outward through the first filter cartridge and is filtered by the first filter cartridge, the second filter cartridge, the third filter cartridge and the fourth filter cartridge. The olive oil is filtered in multiple stages, and the filter cartridges with different pore sizes make the oil filtration more comprehensive, and the residual pomace and pulp in the oil are separated from the oil, thereby achieving oil purification. At the same time, the first servo motor drives the rotating disk to rotate, driving the mounting disk and the filter cartridge to rotate simultaneously. The filter cartridge rotates at high speed to throw out the oil by centrifugal force, thereby separating the oil from the pomace and pulp. After the oil separation is completed, the box body and the box cover are gradually closed, and the squeezing ring gradually descends with the box cover, squeezing the pomace and pulp left at the bottom of the mounting disk, squeezing out the residual oil therein, and making the oil separation more comprehensive. Compared with the traditional pomace and pulp separation device, the oil filtration is more comprehensive and the oil is cleaner by combining multi-stage filtration with centrifugal separation. At the same time, the filtered pomace and pulp are squeezed to prevent oil residue.

[0018] 2. In the utility model, when filtering the oil, the second servo motor drives the threaded rod to rotate, driving the mounting block to move up and down along the support rod and then driving the box cover to move up and down, so that the squeezing ring can squeeze the fruit residue and puree. Since the support rod is rotatably connected to the bottom plate, when the oil filtering and separation is completed, the box cover rises to separate the squeezing ring from the box body, and then the support rod is rotated to rotate the box cover to other directions, so that the mounting plate can be taken out to clean the filter cartridge, which is more convenient to use and prevents fruit residue and puree from remaining inside the filter cartridge and causing the filter cartridge to be blocked. Due to the friction between the support rod and the bottom plate, the support rod will not rotate freely without external interference, preventing the support rod from rotating during operation and affecting the oil separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic diagram of the main body appearance structure in the embodiment of this application;

[0021] Figure 2 Schematic diagram of the installation disk structure in an embodiment of the present application;

[0022] Figure 3 This is a schematic diagram of the appearance and structure of the separation component in the embodiment of the present application;

[0023] Figure 4Schematic diagram of the internal structure of the box in the embodiment of the present application;

[0024] Figure 5 This is a schematic diagram of the extrusion assembly structure in an embodiment of the present application.

[0025] In the figure: 1. Base plate; 2. Box body; 3. Box cover; 4. Oil inlet pipe; 5. Rotating plate; 6. Mounting plate; 7. First filter cartridge; 8. Second filter cartridge; 9. Third filter cartridge; 10. Fourth filter cartridge; 11. Extrusion ring; 12. Mounting groove; 13. First servo motor; 14. Oil drain pipe; 15. Oil pump; 16. Control panel; 17. Observation window; 18. Support rod; 19. Lifting groove; 20. Mounting block; 21. Threaded rod; 22. Second servo motor; 23. Collection bucket; 24. Protective pad. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] Example: Reference Figure 1-5 The device for separating pomace and puree from squeezed olive oil shown in the figure comprises a bottom plate 1, a box body 2 is welded to the top outer wall of the bottom plate 1, a box cover 3 is provided on the top of the box body 2, a separation component is rotatably installed on the inner wall of the bottom of the box body 2, an extrusion component is installed on the inner wall of the top of the box cover 3, and the extrusion component is adapted to the separation component. The separation component comprises a rotating groove opened on the inner wall of the bottom of the box body 2, a rotating disk 5 is rotatably installed on the inner wall of the rotating groove, a mounting disk 6 is plugged into the outer wall of the top of the rotating disk 5, and the mounting disk 6 is adapted to the rotating disk 5. The first filter cartridge 7, the second filter cartridge 8, the third filter cartridge 9 and the fourth filter cartridge 10 are plugged into the outer wall of the top of the mounting disk 6. The first filter cartridge 7, the second filter cartridge 8, the third filter cartridge 9 and the fourth filter cartridge 10 are connected to the outer wall of the top of the mounting disk 6. The filter cartridges 10 are arranged in sequence from the inside to the outside, and the apertures of the first filter cartridge 7, the second filter cartridge 8, the third filter cartridge 9 and the fourth filter cartridge 10 decrease in sequence. The extrusion assembly includes an extrusion ring 11 welded to the bottom outer wall of the box cover 3. An oil inlet pipe 4 is provided on the top of the box cover 3. The oil inlet pipe 4 passes through the middle position of the extrusion ring 11. The end of the oil inlet pipe 4 is at the same horizontal height as the middle position of the bottom outer wall of the extrusion ring 11. The extrusion ring 11 and the first filter cartridge 7, the second filter cartridge 8, the third filter cartridge 9 and the fourth filter cartridge 10, a drive groove is opened inside the bottom plate 1, the drive groove is located below the box body 2, and a first servo motor 13 is installed inside the drive groove. The output shaft of the first servo motor 13 is connected to the rotating disk 5.

[0028] By means of the above structure: when working, the box cover 3 is not in contact with the box body 2. At this time, the olive oil to be separated is poured into the box body 2 through the oil inlet pipe 4. The oil enters the first filter cylinder 7 through the oil inlet pipe 4. The oil gradually diffuses outward through the first filter cylinder 7. The first filter cylinder 7, the second filter cylinder 8, the third filter cylinder 9 and the fourth filter cylinder 10 cooperate with each other to perform multi-stage filtration on the olive oil liquid. The filter cylinders with different pore sizes make the oil filtration more comprehensive, and the residual pomace and puree in the oil are separated from the oil to achieve oil purification. At the same time, the first servo motor 13 drives the rotating disk 5 rotates and drives the mounting plate 6 and the filter cylinder to rotate simultaneously. The filter cylinder throws out the oil by centrifugal force under high-speed rotation, and then separates the oil from the pomace and puree. After the oil separation is completed, the box body 2 and the box cover 3 are gradually closed, and the squeezing ring 11 gradually descends with the box cover 3 to squeeze the pomace and puree left at the bottom of the mounting plate 6, squeeze out the residual oil therein, and make the oil separation more comprehensive. Compared with the traditional pomace and puree separation device, the oil filtration is more comprehensive and the oil is cleaner through the combination of multi-stage filtration and centrifugal separation. At the same time, the filtered pomace and puree are squeezed to prevent oil residue.

[0029] like Figure 5 As shown, one end of the top outer wall of the bottom plate 1 is rotatably connected to a support rod 18, a connecting pin is provided at the bottom of the support rod 18, a connecting hole adapted to the connecting pin is provided at the top of the bottom plate 1, the outer wall of the connecting pin and the inner wall of the connecting hole are provided with anti-slip pads, and there is friction between the connecting pin and the connecting hole, a mounting block 20 is slidably installed on the outer wall of the support rod 18, and the mounting block 20 is connected to the box cover 3, a lifting groove 19 is provided on the inner wall of the support rod 18, and the lifting groove 19 is adapted to the mounting block 20, and a threaded rod 21 is rotatably installed on the inner wall of the lifting groove 19, and the threaded rod 21 is adapted to the lifting groove 19, and the threaded rod 21 is rotatably connected to the mounting block 20 through a thread, a control groove is provided at the bottom of the support rod 18, and a second servo motor 22 is installed inside the control groove, and the second servo motor The output shaft of 22 is connected to the threaded rod 21. When the oil is filtered, the second servo motor 22 drives the threaded rod 21 to rotate, driving the mounting block 20 to move up and down along the support rod 18, and then driving the box cover 3 to move up and down, so that the extrusion ring 11 can extrude the pomace and puree. Since the support rod 18 is rotatably connected to the bottom plate 1, when the oil filtration and separation is completed, the box cover 3 is lifted to separate the extrusion ring 11 from the box body 2, and then the support rod 18 is rotated to rotate the box cover 3 to other directions, so that the mounting plate 6 can be taken out to clean the filter cartridge, which is more convenient to use. Due to the friction between the support rod 18 and the bottom plate 1, the support rod 18 will not rotate freely without external interference, preventing the support rod 18 from rotating during operation and affecting the oil separation.

[0030] like Figure 2As shown, a mounting groove 12 is provided on the top outer wall of the mounting plate 6, and the mounting groove 12 is respectively adapted to the first filter cartridge 7, the second filter cartridge 8, the third filter cartridge 9 and the fourth filter cartridge 10. A limiting hole is provided on the bottom inner wall of the mounting groove 12, and limiting pins that are adapted to the limiting holes are provided on the bottom outer walls of the first filter cartridge 7, the second filter cartridge 8, the third filter cartridge 9 and the fourth filter cartridge 10. The mounting groove 12 facilitates the installation and disassembly of the first filter cartridge 7, the second filter cartridge 8, the third filter cartridge 9 and the fourth filter cartridge 10, and the operation is more convenient. The limiting holes and the limiting pins limit the filter cartridges to ensure that the filter cartridges can rotate with the mounting plate 6, and prevent the filter cartridges from staying still when the mounting plate 6 rotates, affecting the separation of pomace and puree.

[0031] like Figure 1 As shown, an oil drain pipe 14 is provided at the bottom of the outer wall of one side of the box body 2, and an oil pump 15 and a control valve are installed on the oil drain pipe 14. The control valve is located at the end of the oil drain pipe 14. A placement groove is provided on the top of the bottom plate 1, and a collecting bucket 23 is placed in the placement groove. The collecting bucket 23 is located below the oil drain pipe 14. The collecting bucket 23 is adapted to the oil drain pipe 14, and a protective pad 24 adapted to the collecting bucket 23 is provided on the inner wall of the placement groove. After the oil and liquid are separated, the oil drain pipe 14 draws out the oil, and the collecting bucket 23 collects the oil, which makes the operation more convenient.

[0032] like Figure 1 As shown, a control panel 16 and an observation window 17 are provided on the outer wall of the box body 2. The control panel 16 is located above the observation window 17. The control panel 16 is connected to the first servo motor 13 and the oil pump 15 through wires. The control panel 16 controls the first servo motor 13 and the oil pump 15 to facilitate the separation and discharge of oil. The observation window 17 facilitates the observation of the oil separation inside the box body 2.

[0033] This utility works as follows:

[0034] During operation, the box cover 3 is not in contact with the box body 2. At this time, the olive oil to be separated is poured into the box body 2 through the oil inlet pipe 4. The oil enters the first filter cylinder 7 through the oil inlet pipe 4. The oil gradually diffuses outward through the first filter cylinder 7. The first filter cylinder 7, the second filter cylinder 8, the third filter cylinder 9 and the fourth filter cylinder 10 cooperate with each other to perform multi-stage filtration on the olive oil liquid. The filter cylinders with different pore sizes make the oil filtration more comprehensive, and the residual pomace and puree in the oil are separated from the oil to achieve oil purification. At the same time, the first servo motor 13 drives the rotating disk 5 to rotate The mounting plate 6 and the filter drum are driven to rotate simultaneously. The filter drum is rotated at high speed to throw out the oil by centrifugal force, thereby separating the oil from the pomace and puree. After the oil separation is completed, the box body 2 and the box cover 3 are gradually closed, and the squeezing ring 11 is gradually lowered as the box cover 3 is gradually lowered to squeeze the pomace and puree left at the bottom of the mounting plate 6, thereby squeezing out the residual oil therein. The oil separation is more comprehensive. Compared with the traditional pomace and puree separation device, the oil filtration is more comprehensive and the oil is cleaner by combining multi-stage filtration with centrifugal separation. At the same time, the filtered pomace and puree are squeezed to prevent oil residue.

[0035] During oil filtering, the second servo motor 22 drives the threaded rod 21 to rotate and drive the mounting block 20 to move up and down along the support rod 18, thereby driving the box cover 3 to move up and down, so that the squeezing ring 11 can squeeze the pomace and puree. Since the support rod 18 is rotatably connected to the bottom plate 1, when the oil filtering and separation is completed, the box cover 3 is lifted to separate the squeezing ring 11 from the box body 2, and then the support rod 18 is rotated to rotate the box cover 3 to other directions, so that the mounting plate 6 can be taken out to clean the filter cartridge, which is more convenient to use. Due to the friction between the support rod 18 and the bottom plate 1, the support rod 18 will not rotate freely without external interference, thereby preventing the support rod 18 from rotating during operation and affecting the oil separation.

[0036] The mounting groove 12 on the mounting plate 6 facilitates the installation and disassembly of the first filter cartridge 7, the second filter cartridge 8, the third filter cartridge 9, and the fourth filter cartridge 10, making the operation more convenient. The limiting hole and the limiting pin limit the filter cartridge to ensure that the filter cartridge can rotate with the mounting plate 6, preventing the filter cartridge from staying in place when the mounting plate 6 rotates and affecting the separation of pomace and puree.

[0037] After the oil and liquid are separated, the oil drain pipe 14 draws out the oil and the collection barrel 23 collects the oil, making the operation more convenient. The control panel 16 controls the first servo motor 13 and the oil pump 15 to facilitate the separation and discharge of the oil and liquid. The observation window 17 facilitates the observation of the oil and liquid separation inside the box body 2.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for separating pomace and puree from olives after pressing, comprising a bottom plate (1), characterized in that: The top outer wall of the bottom plate (1) is welded with a box body (2), the top of the box body (2) is provided with a box cover (3), the bottom inner wall of the box body (2) is rotatably mounted with a separation component, the top inner wall of the box cover (3) is provided with an extrusion component, the extrusion component is adapted to the separation component, the separation component comprises a rotation groove opened on the bottom inner wall of the box body (2), the inner wall of the rotation groove is rotatably mounted with a rotating disk (5), the top outer wall of the rotating disk (5) is plugged with a mounting disk (6), the mounting disk (6) is adapted to the rotating disk (5), the top outer wall of the mounting disk (6) is plugged with a first filter cartridge (7), a second filter cartridge (8), a third filter cartridge (9) and a fourth filter cartridge (10), the first filter cartridge (7), the second filter cartridge (8), the third filter cartridge (9) and the fourth filter cartridge (10) are arranged in sequence from the inside to the outside, and the apertures of the first filter cartridge (7), the second filter cartridge (8), the third filter cartridge (9) and the fourth filter cartridge (10) decrease in sequence.

2. The device for separating pomace and puree from olives after pressing according to claim 1, characterized in that: The extrusion assembly comprises an extrusion ring (11) welded to the bottom outer wall of the box cover (3); an oil inlet pipe (4) is provided on the top of the box cover (3); the oil inlet pipe (4) passes through the middle position of the extrusion ring (11); the end of the oil inlet pipe (4) and the middle position of the bottom outer wall of the extrusion ring (11) are at the same horizontal height; the extrusion ring (11) is connected to the first filter cartridge (7), the second filter cartridge (8), the third filter cartridge (9) and the fourth filter cartridge (10).

3. The device for separating pomace and puree from olives after pressing according to claim 2, characterized in that: One end of the top outer wall of the bottom plate (1) is rotatably connected to a support rod (18), a connecting pin is provided at the bottom of the support rod (18), a connecting hole adapted to the connecting pin is opened at the top of the bottom plate (1), an outer wall of the connecting pin and an inner wall of the connecting hole are both provided with anti-slip pads, friction exists between the connecting pin and the connecting hole, a mounting block (20) is slidably mounted on the outer wall of the support rod (18), and the mounting block (20) is connected to the box cover (3).

4. The device for separating pomace and puree from olives after pressing according to claim 3, characterized in that: A driving slot is provided inside the bottom plate (1), the driving slot being located below the box body (2), a first servo motor (13) being installed inside the driving slot, and an output shaft of the first servo motor (13) being connected to the rotating disk (5).

5. The device for separating pomace and puree from olives after pressing according to claim 4, characterized in that: The top outer wall of the mounting plate (6) is provided with a mounting groove (12), and the mounting groove (12) is respectively adapted to the first filter cartridge (7), the second filter cartridge (8), the third filter cartridge (9) and the fourth filter cartridge (10). A limiting hole is provided on the bottom inner wall of the mounting groove (12), and the bottom outer walls of the first filter cartridge (7), the second filter cartridge (8), the third filter cartridge (9) and the fourth filter cartridge (10) are all provided with limiting pins adapted to the limiting holes.

6. The device for separating pomace and puree from olives after pressing according to claim 5, characterized in that: An oil drain pipe (14) is provided at the bottom of the outer wall of one side of the box body (2), and an oil pump (15) and a control valve are installed in the oil drain pipe (14). The control valve is located at the end of the oil drain pipe (14). A placement groove is provided on the top of the bottom plate (1), and a collection bucket (23) is placed in the placement groove. The collection bucket (23) is located below the oil drain pipe (14). The collection bucket (23) is adapted to the oil drain pipe (14), and a protective pad (24) adapted to the collection bucket (23) is provided on the inner wall of the placement groove.

7. The device for separating pomace and puree from olives after pressing according to claim 6, characterized in that: The outer wall of the box body (2) is provided with a control panel (16) and an observation window (17). The control panel (16) is located above the observation window (17). The control panel (16) is connected to the first servo motor (13) and the oil pump (15) through a wire.

8. The device for separating pomace and puree from olives after pressing according to claim 3, characterized in that: The inner wall of the support rod (18) is provided with a lifting groove (19), the lifting groove (19) is adapted to the mounting block (20), a threaded rod (21) is rotatably mounted on the inner wall of the lifting groove (19), the threaded rod (21) is adapted to the lifting groove (19), the threaded rod (21) is rotatably connected to the mounting block (20) through a thread, a control groove is provided at the bottom of the support rod (18), a second servo motor (22) is installed inside the control groove, and an output shaft of the second servo motor (22) is connected to the threaded rod (21).

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