Extraction basket rotary cleaning apparatus and method

Abstract

The application discloses a kind of extraction basket rotary cleaning equipment and cleaning method, including the lifting bracket being set in tank body and the upper chain seat and lower chain seat being respectively fixed in its bottom four corners, the upper chain seat is fixedly connected with the one end of lifting chain by T-shaped bolt, the other end of lifting chain is set in driving sprocket on inner transmission shaft and the driven wheel assembly of bottom and is fixedly connected with the T-shaped bolt on lower chain seat, the one end of inner transmission shaft is engaged with the second bevel gear of outer transmission shaft both ends being installed in the side of tank body by first bevel gear, and outer transmission shaft is driven connection with lifting motor by lifting sprocket cooperation chain;During the process that lifting motor drives lifting bracket to descend along tank body, can make the extraction basket of reverse buckle be placed on rotary support assembly, during the process that lifting motor drives lifting bracket to ascend along tank body, can force the extraction basket on rotary support assembly to be placed on lifting bracket again, and rotary cleaning is carried out to extraction basket by spraying assembly.

Description

A rotary cleaning device and cleaning method for extraction baskets Technical Field

[0001] This invention relates to the field of cleaning technology for material holding devices, and in particular to a rotary cleaning device and method for extraction baskets. Background Technology

[0002] In the production process of extraction in traditional Chinese medicine, food, beverage, cosmetics and other industries, extraction baskets are used to hold materials. After extraction, the residue is poured out of the extraction basket and cleaned. The traditional method is to use handheld high-pressure cleaning equipment to remove the residue. This method is not only time-consuming and wasteful of manpower, but also cannot completely remove the residue in the dead corners of the extraction basket. Summary of the Invention

[0003] The purpose of this invention is to provide a rotary cleaning device that is compact in structure, low in cost, stable in performance, safe and reliable, has no dead corners in cleaning, and can adapt to extraction baskets of different heights.

[0004] The technical solution of this invention is implemented as follows:

[0005] A rotary cleaning device for extraction baskets includes a tank and an externally welded frame. The tank contains a lifting bracket for supporting the extraction basket. An upper chain seat and a lower chain seat are fixed at the four corners of the bottom of the lifting bracket. The upper chain seat is fixedly connected to one end of a lifting chain via T-bolts. An inner drive shaft is rotatably mounted on both sides of the top of the tank via bearing seats. The other end of the lifting chain is wound around a drive sprocket on the inner drive shaft and a driven wheel assembly at the bottom, and is fixedly connected to the lower chain seat via T-bolts. One end of the inner drive shaft meshes with a second bevel gear installed at both ends of an outer drive shaft on the side of the tank via a first bevel gear. The outer drive shaft is connected to a lifting motor via a lifting sprocket and chain.

[0006] The bottom of the tank is equipped with a rotating support assembly. When the lifting motor drives the lifting bracket to descend along the tank, the inverted extraction basket can be placed on the rotating support assembly. When the lifting motor drives the lifting bracket to rise along the tank, the extraction basket on the rotating support assembly can be forced to be placed back on the lifting bracket. When the extraction basket is placed on the rotating support assembly, it can rotate with the rotating support assembly and be rotated and cleaned by the spray assembly.

[0007] Furthermore, the rotating support assembly includes a base fixed to the ground by expansion bolts, the base being bolted to a connecting flange inside the groove;

[0008] The connecting flange is fixedly mounted with a bearing housing via a retaining ring and a thrust bearing. The upper and lower ends of the bearing housing are mounted with rotating shafts via self-aligning bearings. A sealing cap is fixed to the top of the bearing housing with bolts.

[0009] Furthermore, a disc-shaped top basket crown is fixedly installed at the top of the rotating shaft by an expansion sleeve, and several supporting protrusions are evenly distributed on the outer periphery of the top basket crown.

[0010] Furthermore, the support boss includes an integrally formed first boss and a second boss;

[0011] The first boss engages with the beak-shaped surface of the extraction basket, and the second boss engages with the surface of the basket cover.

[0012] Furthermore, the rotating support assembly also includes a sprocket disposed within the base, the sprocket being connected to the bottom end of the rotating shaft via a key, and the sprocket being connected to the output end of the rotary motor via a chain.

[0013] Furthermore, the spray assembly includes an inner spray pipe and an outer spray pipe installed in the tank by a support, and the inner spray pipe and the outer spray pipe are connected to the output end of the high-pressure pump set through a water supply pipe.

[0014] The inner spray pipe includes two rings of spray pipes arranged in a ring, and a planar rotating nozzle, a three-dimensional rotating nozzle and a columnar nozzle are assembled on the spray pipes; the outer spray pipe is arranged along the height direction of the extraction basket, and a fan-shaped nozzle is installed on the outer spray pipe.

[0015] Furthermore, two sets of guide wheel assemblies are symmetrically installed on the side of the lifting bracket that is different from the inner drive shaft. The guide wheel assembly includes two guide wheels with 90° grooves installed on the guide wheel frame. The guide wheels are in rolling engagement with the guide angle steel on the groove.

[0016] Furthermore, the extraction basket rotary cleaning device also includes a curtain mechanism installed at the top of the tank, the curtain mechanism including a curtain motor, the output end of which is fixedly connected to the transmission shaft through a diaphragm coupling;

[0017] The two ends of the drive shaft are connected to two drive modules. The drive modules are equipped with walking crossbars by sliders, and the walking crossbars are riveted to a flexible curtain.

[0018] The present invention also provides a cleaning method for a rotary cleaning device for extraction baskets, comprising the following steps:

[0019] S1: The extraction basket is inverted onto the lifting bracket by the extraction basket tilting and unloading device;

[0020] S2: The lifting motor is controlled by the PLC, so that the lifting bracket drives the extraction basket to descend;

[0021] S3: During the process of the lifting bracket moving to the bottom of the tank, the extraction basket is separated from the upper surface of the lifting bracket under the restriction of the top basket crown;

[0022] S4: When the sensor switch detects that the lifting bracket has moved to the lowest position of the slot, the curtain motor is started to rotate forward to close the curtain.

[0023] S5: After the curtain mechanism is closed, the rotary motor and high-pressure pump group work simultaneously. The rotary motor rotates forward once and then reverses once, and so on, until the set spraying time is reached. Then the rotary support component returns to the initial position, and the basket rotation cleaning ends.

[0024] S6: The curtain motor reverses to open the curtain. After the curtain is fully opened, the lifting motor is started. During the lifting process, the lifting bracket can separate the extraction basket from the top basket crown. When the lifting bracket moves to the highest position, the extraction basket after cleaning is transferred to the next station through the extraction basket flipping and unloading device.

[0025] The beneficial effects of the present invention are: by adopting the above technical solution, extraction baskets and basket covers of different heights can be rotated and cleaned, which has the advantages of simple structure, stable performance, high applicability, and safety and reliability. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in 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.

[0027] Figure 1 is a front view of the present invention;

[0028] Figure 2 is a top view of the present invention;

[0029] Figure 3 is a front view of the present invention's mechanism for removing the spray pipe, extraction basket, rotating support assembly, and curtain.

[0030] Figure 4 is a schematic diagram of the guide wheel assembly of the present invention;

[0031] Figure 5 is a schematic diagram of the driven wheel assembly of the present invention;

[0032] Figure 6 is an exploded view of the rotary support assembly of the present invention;

[0033] Figure 7 is a cross-sectional view of the rotary support assembly of the present invention;

[0034] Figure 8 is an axonometric view of the curtain mechanism of the present invention;

[0035] Figure 9 is a top view of the curtain mechanism of the present invention;

[0036] Figure 10 is an enlarged view of point A in Figure 1 of this invention;

[0037] Figure 11 is an enlarged view of point B in Figure 1 of this invention;

[0038] Figure 12 is an enlarged view of point C in Figure 1 of this invention;

[0039] Figure 13 is a schematic diagram of the fit between the second protrusion and the beak plane;

[0040] Figure 14 is a schematic diagram of the first boss mating with the basket cover plane. Detailed Implementation

[0041] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0042] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0043] Referring to Figures 1-3, the extraction basket rotary cleaning device according to an embodiment of the present invention includes a tank 1 and an externally welded frame. The tank 1 is a tetrahedral structure welded from 3mm stainless steel plates with an open top. A lifting bracket 2 for supporting the extraction basket 28 is provided inside the tank 1. An upper chain seat 3 and a lower chain seat 4 are fixed at the four corners of the bottom of the lifting bracket 2, respectively. The upper chain seat 3 is fixedly connected to one end of a lifting chain 6 via T-bolts 5. An inner drive shaft 7 is rotatably mounted on both sides of the top of the tank 1 via bearing seats. The other end of the lifting chain 6 is wound around a drive sprocket on the inner drive shaft 7 and a driven wheel assembly 8 at the bottom, and is fixedly connected to the T-bolt 5 on the lower chain seat 4. The two ends of the inner drive shaft 7 mesh with second bevel gears installed at both ends of an outer drive shaft 9 mounted on the side of the tank 1 via first bevel gears. The outer drive shaft 9 is connected to a lifting motor 12 via a lifting sprocket 11 and a chain.

[0044] During operation, the lifting motor 12 is controlled by the PLC. The output end of the lifting motor 12 drives the outer drive shaft 9 to rotate through the lifting sprocket 11. This causes the second bevel gears at both ends of the outer drive shaft 9 to mesh with the first bevel gears at both ends of the inner drive shaft 7, thereby driving the inner drive shaft 7 to rotate. The inner drive shaft 7, in conjunction with the driven wheel assembly 8, drives the lifting chain 6 to rise or fall within the groove 1. The upper chain seat 3 and the lower chain seat 4, which are fixedly connected to the lifting chain 6, enable the lifting bracket 2 to rise or fall.

[0045] When cleaning extraction baskets 28 at different heights, the lifting motor 12 drives the lifting bracket 2 to rise to the highest position of the tank 1. Under the action of the extraction basket tilting and unloading device, the extraction basket 28 is inverted on the upper surface of the lifting bracket 2. Then, the lifting motor 12 drives the lifting bracket 2 to lower the extraction basket 28 to the lower position. Under the restriction of the rotating support component 13, the extraction basket 28 separates from the upper surface of the lifting bracket 2. The rotating support component 13 drives the extraction basket to rotate, and the spray component achieves cleaning of extraction baskets at different heights.

[0046] As shown in Figure 1, in order to achieve full coverage cleaning of extraction baskets and basket covers 28-1 at different heights, this application provides a rotating support assembly 13 at the bottom of the tank 1. During the process of the lifting motor 12 driving the lifting bracket 2 to descend along the tank 1, the inverted extraction basket 28 can be placed on the rotating support assembly 13. During the process of the lifting motor 12 driving the lifting bracket 2 to rise along the tank 1, the extraction basket 28 on the rotating support assembly 13 can be forced to be placed back on the lifting bracket 2. When the extraction basket 28 is placed on the rotating support assembly 13, it can rotate with the rotating support assembly 13 and be rotated and cleaned by the spray assembly.

[0047] As shown in Figures 6 and 7, the rotating support assembly 13 includes a base 13-1 fixed to the ground by expansion bolts. The base 13-1 is bolted to the connecting flange 13-2 inside the groove 1. A base sealing ring is provided between the base 13-1 and the connecting flange 13-2. The connecting flange 13-2 is fitted with a bearing housing 13-3 via a retaining ring and a thrust bearing. The retaining ring is a circular concave shape with a bearing hole in the center for mounting the thrust bearing and a rectangular groove at the bottom for mounting an O-ring. The retaining ring is installed inside the bearing housing 13-3 via the connecting flange 13-2, and can withstand axial thrust and prevent the bearing from moving axially. A rotating shaft 13-4 is mounted on the upper and lower ends of the bearing housing 13-3 via self-aligning bearings. A sealing cap 13-5 is bolted to the top of the bearing housing 13-3. The sealing cap 13-5 has a circular boss structure with an internal sealing groove and dustproof and lip seals for dust and water protection. A disc-shaped top crown 13-7 is fixed to the top of the rotating shaft 13-4 through the sealing cap 13-5 and via an expansion sleeve 13-6. Several supporting bosses 13-8 are evenly distributed on the outer circumference of the top crown 13-7. A sprocket 13-9 is installed inside the base 13-1. The sprocket 13-9 is connected to the bottom end of the rotating shaft 13-4 via a key. The sprocket 13-9 is connected to the output end of the rotary motor 13-10 via a chain. A through hole for the chain to pass through is provided on the side of the base 13-1.

[0048] Specifically, the support boss 13-8 includes an integrally formed first boss 13-81 and a second boss 13-82. The first boss 13-81 mates with the plane of the eagle beak 28-2 of the extraction basket 28, and the second boss 13-82 mates with the plane of the basket cover 28-1. In addition, the steps of the first boss 13-81 and the second boss 13-82 are both chamfered, which facilitates the guiding fit of the extraction basket 28 and helps to eliminate fit errors and find the center.

[0049] It should be noted that a "7"-shaped sensing plate 26 is welded onto the lifting chain 6. As the lifting chain 6 moves, the sensing plate 26 can control the highest and lowest positions of the lifting bracket 2 when it approaches or moves away from the sensing switch 29. A slag discharge pipe 27 is provided at the bottom of the tank 1, and a drain valve is provided on the slag discharge pipe 27. The opening of the drain valve is related to the number of times the extraction basket is cleaned. When the set number of cleanings is reached, the drain valve opens for 10 minutes to discharge the water and slag in the tank 1 together.

[0050] As shown in Figures 8-11, a curtain mechanism is also installed at the top of the tank 1 to prevent splashing during cleaning. This curtain mechanism includes a curtain motor 20, the output of which is fixedly connected to a drive shaft 21 via a diaphragm coupling. Two drive modules 22 are connected to both ends of the drive shaft 21. A travel crossbar 24 is mounted on each drive module 22 via a slider 23, and a flexible curtain 25 is riveted to the travel crossbar 24. The forward and reverse rotation of the curtain motor 20 drives the travel crossbar 24 in linear motion, thereby pulling the flexible curtain 25 to move, achieving the opening and closing functions. The two drive modules are existing technology and will not be described in detail here.

[0051] In specific implementation, when the lifting motor 12 drives the lifting bracket 2 to descend to the bottom of the tank 1, the lifting bracket 2 moves to the lowest position preset in the tank 1 under the action of the induction switch 29. The extraction basket 28 on the lifting bracket 2 will first contact the top basket crown 13-7 on the rotating support assembly 13, and under the action of the first protrusion 13-81 and the second protrusion 13-82, the inverted extraction basket 28 will be placed on the top of the top basket crown 13-7. Then, the curtain motor 20 is started to rotate forward to close the curtain 25. After the curtain mechanism is closed, the rotating motor 13-10 and the high-pressure pump group 30 work at the same time. The rotating motor 13-10 rotates forward once and then reverses once. This cycle continues until the set spraying time is reached. Then, the rotating support assembly 13 returns to the initial position, and the rotation cleaning ends.

[0052] After the rotation cleaning is completed, the curtain motor 20 reverses to open the curtain 25. After the curtain 25 is fully opened, the lifting motor 12 rotates forward and drives the lifting bracket 2 to rise. During the rising process of the lifting bracket 2, the upper surface of the lifting bracket 2 will contact and support the extraction basket 28, thereby separating the extraction basket 28 from the top basket crown 13-7 until the lifting bracket 2 moves to the preset highest position. Then, it is transferred to the next station by the extraction basket flipping and unloading device to complete the rotation cleaning of the extraction basket.

[0053] As shown in Figures 1 and 2, the spray assembly includes an inner spray pipe 15 and an outer spray pipe 16 mounted on the tank 1 via U-shaped pipe clamps and supports 14. The inner spray pipe 15 and the outer spray pipe 16 are connected to the output end of the high-pressure pump unit 30 via a water supply pipe 17. The inner spray pipe 15 includes two rings of spray pipes arranged in a ring, and columnar nozzles, planar rotating nozzles, and three-dimensional rotating nozzles are assembled on the nozzles. The spray angle of the nozzles can be adjusted using a universal ball joint. The outer spray pipe 16 is arranged along the height direction of the extraction basket, and several fan-shaped nozzles are installed on the outer spray pipe 16. The spray angle of the fan-shaped nozzles can be manually adjusted using a universal ball joint.

[0054] As shown in Figures 2-4, in order to improve the stability of the extraction basket 28 during the lifting process, this application has two sets of guide wheel assemblies symmetrically installed on the side of the lifting bracket 2 that is different from the inner drive shaft 7. The guide wheel assembly includes two guide wheels 18 with 90° grooves installed on the guide wheel frame. The guide wheels 18 roll with the guide angle steel 19 on the groove 1 to prevent the extraction basket 28 from shifting or shaking during the reciprocating lifting process of the lifting bracket 2. At the same time, the rolling cooperation between the guide wheels 18 and the guide angle steel 19 enables the extraction basket 28 to fit precisely with the top basket crown 13-7, which is beneficial for centering and avoiding deviation.

[0055] This invention also discloses a cleaning method for a rotary cleaning device for extraction baskets, comprising the following steps:

[0056] S1: The extraction basket 28 is inverted onto the lifting bracket 2 by the extraction basket flipping and unloading device;

[0057] S2: The lifting motor 12 is controlled by the PLC to make the lifting bracket 2 drive the extraction basket 2 to descend;

[0058] S3: During the process of the lifting bracket 2 moving to the bottom of the tank 1, the extraction basket 28 is separated from the upper surface of the lifting bracket 2 under the restriction of the top basket crown 13-7;

[0059] S4: When the induction switch 29 detects that the lifting bracket 2 has moved to the lowest position of the slot 1, the curtain motor 20 is started to rotate forward and the curtain 25 is closed.

[0060] S5: After the curtain mechanism is closed, the rotary motor 13-10 and the high-pressure pump group 30 work simultaneously. The rotary motor 13-10 rotates forward once and then reverses once, and so on, until the set spraying time is reached. Then the rotary support component 13 returns to the initial position, and the extraction basket 28 finishes rotating and cleaning.

[0061] S6: The curtain motor 20 reverses to open the curtain 25. After the curtain 25 is fully opened, the lifting motor 12 is started. During the upward process, the lifting bracket 2 can separate the extraction basket 28 from the top basket crown 13-7 until the lifting bracket 2 moves to the highest position. Then, the extraction basket after cleaning is transferred to the next station through the extraction basket flipping and unloading device.

[0062] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A rotary cleaning device for extraction baskets, characterized in that, The system includes a tank (1) and its external welded frame. The tank (1) contains a lifting bracket (2) for supporting the extraction basket (28). An upper chain seat (3) and a lower chain seat (4) are fixed at the four corners of the bottom of the lifting bracket (2). The upper chain seat (3) is fixedly connected to one end of the lifting chain (6) via T-bolts (5). An inner drive shaft (7) is rotatably mounted on both sides of the top of the tank (1) via bearing seats. The other end of the lifting chain (6) is wound around the driving sprocket on the inner drive shaft (7) and the driven wheel assembly (8) at the bottom, and is fixedly connected to the T-bolt (5) on the lower chain seat (4). The inner drive shaft (7... One end of the shaft engages with the second bevel gears at both ends of the external drive shaft (9) on the side of the tank (1) via the first bevel gear. The external drive shaft (9) is connected to the lifting motor (12) via the lifting sprocket (11) and the chain. A rotating support assembly (13) is provided at the bottom of the tank (1). When the lifting motor (12) drives the lifting bracket (2) to descend along the tank (1), the inverted extraction basket (28) can be placed on the rotating support assembly (13). When the lifting motor (12) drives the lifting bracket (2) to rise along the tank (1), the extraction basket (28) on the rotating support assembly (13) can be forced to reposition. On the lifting bracket (2), when the extraction basket (28) is placed on the rotating support assembly (13), it can rotate with the rotating support assembly (13) and be rotated and cleaned by the spray assembly; the rotating support assembly (13) includes a base (13-1) fixed to the ground by expansion screws, the base (13-1) is bolted to the connecting flange (13-2) in the tank (1); the connecting flange (13-2) is fixedly installed with a bearing seat (13-3) by a retaining ring and a thrust bearing, and the upper and lower ends of the bearing seat (13-3) are mounted with a rotating shaft (13-4) by self-aligning bearings. The top of (13-3) is fixed with a sealing cap (13-5) by bolts; the top of the rotating shaft (13-4) is fixed with a disc-shaped top basket crown (13-7) by an expansion sleeve (13-6), and the outer periphery of the top basket crown (13-7) is evenly distributed with several support bosses (13-8); the support bosses (13-8) include an integrally formed first boss (13-81) and a second boss (13-82); the first boss (13-81) is in planar cooperation with the basket cover (28-1) of the extraction basket (28), and the second boss (13-82) is in planar cooperation with the beak (28-2) of the extraction basket (28).

2. The rotary cleaning device for extraction baskets according to claim 1, characterized in that, The rotating support assembly also includes a sprocket (13-9) disposed in the base (13-1). The sprocket (13-9) is connected to the bottom end of the rotating shaft (13-4) by a key. The sprocket (13-9) is connected to the output end of the rotating motor (13-10) by a chain.

3. The extraction basket rotary cleaning device according to claim 2, characterized in that, The spray assembly includes an inner spray pipe (15) and an outer spray pipe (16) installed in the tank (1) via a support (14). The inner spray pipe (15) and the outer spray pipe (16) are connected to the output end of the high-pressure pump group (30) via a water supply pipe (17). The inner spray pipe (15) includes two rings of spray pipes arranged in a ring. A planar rotating nozzle, a three-dimensional rotating nozzle, and a columnar nozzle are assembled on the spray pipe. The outer spray pipe (16) is arranged along the height direction of the extraction basket (28). A fan-shaped nozzle is installed on the outer spray pipe (16).

4. The rotary cleaning device for extraction baskets according to claim 3, characterized in that, Two sets of guide wheel assemblies are symmetrically installed on the side of the lifting bracket (2) that is different from the inner drive shaft (7). The guide wheel assembly includes two guide wheels (18) with 90° grooves installed on the guide wheel frame. The guide wheels (18) are in rolling cooperation with the guide angle steel (19) on the groove (1).

5. The rotary cleaning device for extraction baskets according to claim 4, characterized in that, The extraction basket rotary cleaning device also includes a curtain mechanism installed at the top of the tank (1). The curtain mechanism includes a curtain motor (20). The output end of the curtain motor (20) is fixedly connected to the transmission shaft (21) through a diaphragm coupling. The two ends of the transmission shaft (21) are connected to two transmission modules (22). The transmission modules (22) are equipped with a walking crossbar (24) through a slider (23). The walking crossbar (24) is riveted with a flexible curtain (25).

6. A cleaning method for a rotary cleaning device for extraction baskets, comprising cleaning using the rotary cleaning device for extraction baskets as described in claim 5, characterized in that, Includes the following steps: S1: The extraction basket (28) is inverted onto the lifting bracket (2) by the extraction basket flipping and unloading device; S2: The lifting motor (12) is controlled by PLC to make the lifting bracket (2) drive the extraction basket (28) to descend; S3: During the process of the lifting bracket (2) moving to the bottom of the tank (1), the extraction basket (28) is separated from the upper surface of the lifting bracket (2) under the restriction of the top basket crown (13-7); S4: When the induction switch (29) detects that the lifting bracket (2) has moved to the lowest position of the tank (1), the curtain motor (20) is started to rotate forward to close the curtain (25); S5: After the curtain mechanism is closed, the rotary motor (13-10) and the high-pressure pump group (30) work at the same time. The rotary motor (13-10) rotates forward 1 turn and then reverses 1 turn. This cycle continues until the set spraying time is reached. Then the rotary support assembly (13) returns to the initial position, and the extraction basket (28) finishes rotating and cleaning. S6: The curtain motor (20) reverses to open the curtain (25). After the curtain (25) is fully opened, the lifting motor (12) is started. The lifting bracket (2) can separate the extraction basket (28) from the top basket crown (13-7) during the rising process until the lifting bracket (2) moves to the highest position. Then, the extraction basket after cleaning is transferred to the next station through the extraction basket flipping and unloading equipment.

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