A multi-stage screening device for hot pot base processing

Abstract

The present invention provides a multi-stage screening device for processing hot pot soup base, which belongs to the technical field of hot pot soup base processing; it includes a screening box, a rectangular frame rotatably arranged in the screening box, a screening frame arranged in the rectangular frame, screens distributed up and down in the screening frame and dividing the screening frame into multiple screening cavities, a first discharge port arranged on the side wall of each screening cavity, a discharge assembly arranged in the first discharge port, a strip port arranged on the side of each screening cavity away from the first discharge port, a U-shaped rod arranged on the rectangular frame and having the same number as the strip port, a first telescopic plate arranged on each U-shaped rod, a first hydraulic rod arranged on the screening box, a plurality of second discharge ports arranged on the bottom wall of the screening box and adapted to the first discharge port, a first limiting assembly for limiting the rectangular frame to the screening box, and a vertical vibration assembly for driving the screening frame to vibrate up and down. The present invention can conveniently collect the raw materials retained in each screening cavity.

Description

Technical Field

[0001] The invention relates to the technical field of hot pot soup base processing, in particular to a multi-stage screening device for hot pot soup base processing. Background Art

[0002] Hot pot base is made by stir-frying various spices, seasonings, and ingredients. Before stir-frying, the larger ingredients (such as star anise and bay leaves) need to be chopped up in advance and then sieved to obtain the spices with the specified particle size.

[0003] In the prior art, in order to achieve multi-level utilization of chopped spices, these spices are often screened through a multi-stage screening device to obtain spices of different particle sizes, and then the spices of different particle sizes are applied to the hot pot base that matches the spice particle size to ensure that the spices can be fully utilized.

[0004] The multi-stage screening device in the prior art generally includes a plurality of screens distributed vertically. In actual use, this type of screening device faces at least the technical problem of how to conveniently remove the spices retained on each screen. Summary of the Invention

[0005] The object of the present invention is to provide a multi-stage screening device for processing hot pot base, which can easily remove spices retained in each screen and screening frame.

[0006] The purpose of the present invention is achieved through the following technical solutions:

[0007] A multi-stage screening device for processing hot pot soup base, comprising a screening box, a rectangular frame arranged in the screening box that is rotated by a rotating shaft, a screening frame arranged in the rectangular frame, screens distributed up and down in the screening frame and dividing the screening frame into a plurality of screening cavities, a first discharge port arranged on a side wall of each screening cavity, a discharge assembly arranged in the first discharge port, a strip port arranged on a side of each screening cavity away from the first discharge port, U-shaped rods arranged on the rectangular frame and having the same number as the strip ports, a first telescopic plate arranged on each U-shaped rod, a first hydraulic rod arranged on the screening box and used to drive the first telescopic plate to pass through the strip ports adapted thereto, a plurality of second discharge ports arranged on the bottom wall of the screening box and adapted to the first discharge port, a first limiting assembly for limiting the rectangular frame to the screening box, and a vertical vibration assembly for driving the screening frame to vibrate up and down;

[0008] When the screening frame rotates 90 degrees, the second discharge port is located just below the first discharge port;

[0009] The telescopic end of the first telescopic plate is provided with a first connecting plate, and the telescopic end of the first hydraulic rod and the first connecting plate are detachably connected;

[0010] The discharge assembly includes a flexible telescopic tube fixedly disposed in the first discharge port, a sealing assembly detachably disposed in the first discharge port and connected to the free end of the flexible telescopic tube, and a second limiting assembly for limiting the sealing assembly to the first discharge port; the flexible telescopic tube is retracted and stored in the first discharge port;

[0011] The sieve holes of the multiple sieves distributed up and down gradually decrease in size from top to bottom. The side walls and bottom wall of the screening frame are both provided with multiple sieve holes, and the sieve holes provided on the side walls and bottom wall of the screening frame have a smaller sieve hole size than the sieve hole size of the lowest sieve.

[0012] Preferably, the telescopic end of the first hydraulic rod is provided with a first electromagnet, the first electromagnet is capable of contacting the first connecting plate, and the first electromagnet is magnetically connected to the first connecting plate after being energized.

[0013] Preferably, the sealing assembly includes a connecting ring detachably arranged in the first discharge port, and a cover plate arranged in the connecting ring; one end of the flexible telescopic tube is fixedly connected to the inner wall of the first discharge port, and the other end is fixedly connected to the connecting ring; after the flexible telescopic tube is naturally extended, its length is longer than the distance between the first discharge port and the second discharge port directly below it;

[0014] The second limiting assembly includes a first limiting groove arranged on the inner wall of the first discharge port, a second electromagnet arranged in the first limiting groove, a first spring arranged on the side wall of the second electromagnet, an iron block arranged on the end of the first spring away from the second electromagnet and slidingly connected to the first limiting groove, a limiting plug arranged on the side of the iron block away from the first spring, and a second limiting groove arranged on the outer wall of the connecting ring and adapted to the limiting plug.

[0015] Preferably, an inwardly opened baffle is hinged in each of the strip-shaped openings, and the baffle is provided with a plurality of sieve holes with the same aperture as the side wall of the screening frame; a return spring is provided at the hinge of the baffle.

[0016] Preferably, the screening device further comprises a horizontal vibration assembly provided on the side wall of the screening frame and capable of driving the screening frame to vibrate in the horizontal direction; a slider is provided at the end of each U-shaped rod, and a vertical slide groove slidably engaged with the slider is provided on the rectangular frame;

[0017] The side wall of the screening box is provided with a through groove, a first movable plate is slidably provided in the through groove, and multiple first hydraulic rods are all provided on the first movable plate; the outer wall of the screening box is provided with a first fixed plate, a second hydraulic rod is provided on the first fixed plate, and the telescopic end of the second hydraulic rod is fixedly connected to the first movable plate via a second connecting plate; a second telescopic plate is provided between the top end of the first movable plate and the top end of the through groove.

[0018] The cam is adapted to move the second movable member away from the second movable member and move the second movable member away from the second movable member.

[0019] Preferably, two third movable plates are parallel and slidingly provided on the bottom wall of the screening box, and the ends of the two third movable plates that are away from each other are respectively connected to the fourth hydraulic rods provided at the bottom end of the screening box, and the ends of the two third movable plates that are close to each other are respectively provided with first limiting columns, and the outer wall of the connecting ring is provided with a socket adapted to the first limiting column.

[0020] Preferably, a U-shaped plate is slidingly provided on the bottom wall of the screening box, and a plurality of fifth hydraulic rods adapted to the second discharge port are provided on the U-shaped plate, and a third electromagnet is provided at the telescopic end of the fifth hydraulic rod, and the third electromagnet is magnetically connected to the cover plate after being energized; a sixth hydraulic rod is provided at the bottom end of the screening box, and the telescopic end of the sixth hydraulic rod is fixedly connected to the U-shaped plate.

[0021] Preferably, a plurality of limit rods are evenly distributed on the outside of each of the fifth hydraulic rods with the center of the telescopic end as the center of the circle, and the top ends of the plurality of limit rods are commonly connected to a limit ring, and the bottom ends of all the limit rods pass through the bottom wall of the U-shaped plate and are commonly connected to the limit plate. When the limit plate is in contact with the U-shaped plate, the limit ring just contacts the side wall of the screening frame; the inner wall of the limit ring and the inner wall of the limit rod are respectively slidably connected to the outer wall of the flexible telescopic tube.

[0022] Preferably, the limiting plate and the bottom wall of the U-shaped plate are magnetically connected.

[0023] Compared with the prior art, the present invention has the following effects:

[0024] 1. A rectangular frame is arranged by rotating the interior of the screening box, a screening frame is arranged in the rectangular frame, and a plurality of screens are arranged above and below the screening frame for dividing the screening frame into a plurality of screening cavities, a first discharge port is arranged on the side wall of each screening frame, a second discharge port adapted to the first discharge port is arranged at the bottom end of the screening box, a flexible telescopic tube and a sealing assembly connected to the free end of the flexible telescopic tube are arranged in each first discharge port, and a second limiting assembly for limiting the sealing assembly to the first discharge port is provided. After the screening is completed, the screening frame can be rotated 90 degrees, so that the first discharge port can face the second discharge port on the bottom wall of the screening frame. Thereafter, the second limiting assembly is released, and the sealing assembly falls below the second discharge port under the action of gravity. During the falling process of the sealing assembly, the flexible telescopic tube extends accordingly, thereby causing the raw materials in the screening cavity to fall into the flexible telescopic tube. Thereafter, the sealing assembly is opened, and the raw materials can be smoothly collected.

[0025] Through the synergistic effect of the above devices, the raw materials in each screening cavity can be collected, thereby improving the convenience of collection.

[0026] However, as the screening frame rotates 90 degrees, the raw materials in the lower screening chamber may flow along the screen into the upper screening chamber, causing the raw materials to mix with each other, thereby making the raw materials collected in each screening chamber insufficiently screened. Based on this, the present invention provides a strip opening on the side wall of each screening chamber, and provides U-shaped rods on the side wall of the rectangular frame, the same number as the strip openings. A first telescopic plate capable of horizontally passing through the strip opening is provided on each U-shaped rod, and a first connecting plate is provided at the telescopic end of each first telescopic plate. A first hydraulic rod is provided on the side wall of the screening box, the same number as the first telescopic plates, and the telescopic ends of the first hydraulic rods are detachably connected to the first connecting plates. After the raw material screening is completed and before the screening frame is rotated, multiple first hydraulic rods can be activated so that the telescopic ends of the first hydraulic rods are aligned with the first connecting plates and move toward the strip opening. After contacting the first connecting plates, the first connecting plates are pushed toward the strip opening. During this process, the first connecting plates drive the telescopic ends of the first telescopic plates to move toward the strip opening, thereby gradually stretching the first telescopic plates until their free ends move to abut against the inner wall of the screening frame. Thereafter, the screening frame can be rotated to retain and collect the raw materials.

[0027] Through the coordinated action of the above-mentioned first telescopic plate, first hydraulic rod and other devices, the technical problem of cross-mixing of raw materials in adjacent screening chambers passing through the screen during the 90-degree rotation of the screening frame can be effectively avoided, thereby effectively improving the screening adequacy of the collected raw materials.

[0028] 2. By disposing a first electromagnet at the telescopic end of the first hydraulic rod and limiting the magnetic connection between the first electromagnet and the first connecting plate after being energized, the first electromagnet can be de-energized after the first telescopic plate is extended, thereby separating the first hydraulic rod and the first connecting plate, thereby making the first hydraulic rod and the first connecting plate detachable, effectively improving the flexibility of the device.

[0029] 3. By setting up a horizontal vibration component including a second fixed plate, a second movable plate, a second spring, an impact rod, etc., the screening frame can be vibrated horizontally after being rotated 90 degrees. In this way, the raw materials remaining on the inner wall of the screening frame and the inner wall of the screen can be quickly dropped into the first discharge port under the action of vibration, thereby avoiding the raw materials remaining in the screening frame and effectively improving the raw material yield.

[0030] 4. By providing a U-shaped plate, a fifth hydraulic rod, a third electromagnet, a sixth hydraulic rod, a limiting rod, a limiting ring, and a limiting plate, the top of the limiting ring can be moved to abut the side wall of the screening frame after material removal. In this way, the multiple limiting rods disposed on the exterior of the flexible telescopic tube can limit the flexible telescopic tube, ensuring that it always moves vertically during retraction and maintains a sliding connection with the limiting rods during movement, ensuring smooth retraction. Furthermore, the magnetic connection between the fifth hydraulic rod and the sealing assembly allows the flexible telescopic tube to be fully vertical before retraction. The fifth hydraulic rod then automatically returns the sealing assembly and the flexible telescopic tube to their original positions, ensuring a smooth return of the sealing assembly and the flexible telescopic tube and improving operational smoothness. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Schematic diagram of the cross-sectional structure of the present invention in the front view direction in Example 1;

[0032] Figure 2 for Figure 1 A schematic diagram of the structure of the middle rectangular frame in the front view direction;

[0033] Figure 3 for Figure 1 Schematic diagram of the structure of the middle rectangular frame when viewed from above;

[0034] Figure 4 for Figure 3 Schematic diagram of the structure of the middle screening frame in the top-down direction;

[0035] Figure 5 for Figure 1 Schematic diagram of the structure of the middle rectangular frame in the rear view direction;

[0036] Figure 6 for Figure 1 Schematic diagram of the cross-sectional structure in the right viewing direction of the middle screening frame;

[0037] Figure 7 for Figure 1 Schematic diagram of the cross-sectional structure in the front view direction after the middle screening frame is rotated forward 90 degrees;

[0038] Figure 8 for Figure 7 Schematic diagram of the cross-sectional structure of the middle sealing component after it is lowered;

[0039] Figure 9 Schematic diagram of the enlarged structure of A (left) and B (right);

[0040] Figure 10 for Figure 8 Schematic diagram of the cross-sectional structure in the right viewing direction of the middle screening frame;

[0041] Figure 11 for Figure 10 Schematic diagram of the structure after the U-shaped plate is set;

[0042] Figure 12 for Figure 11 Schematic diagram of the cross-sectional structure of the middle U-shaped plate in the front view direction;

[0043] Figure 13 for Figure 12 A schematic diagram of the structure when viewed from above after a second fixing plate is provided on a side away from the first hydraulic rod;

[0044] Figure 14 for Figure 13 A schematic cross-sectional structural diagram of the second fixing plate in the horizontal direction;

[0045] Figure 15 for Figure 5 Schematic diagram of the structure after vertical chute is set;

[0046] Figure 16 is a schematic cross-sectional structural diagram of the first movable plate as viewed from the right;

[0047] Figure 17 It is a schematic diagram of the cross-sectional structure of the baffle viewed from the left;

[0048] In the figure: 1-screening box, 2-rectangular frame, 3-screening frame, 4-screen, 5-strip opening, 6-first discharge port, 7-second discharge port, 8-first telescopic plate, 9-first hydraulic rod, 10-first connecting plate, 11-flexible telescopic tube, 12-first electromagnet, 13-connecting ring, 14-cover plate, 15-first limiting groove, 19-second electromagnet, 16-first spring, 17-iron block, 18-second limiting groove, 20-baffle, 22-vertical slide, 23-through groove, 24-first movable plate, 25-first fixed plate, 26-second hydraulic Rod, 27-second fixed plate, 28-second movable plate, 29-third hydraulic rod, 30-second spring, 31-impact rod, 32-vertical plate, 33-rotating rod, 34-eccentric wheel, 35-motor, 37-fourth hydraulic rod, 38-third movable plate, 39-first limiting column, 40-U-shaped plate, 41-fifth hydraulic rod, 42-third electromagnet, 43-sixth hydraulic rod, 44-limiting rod, 45-limiting ring, 46-limiting plate, 48-telescopic rod, 49-handwheel, 50-feeding pipe, 51-seventh hydraulic rod, 52-sliding plate, 53-U-shaped rod, 54-second telescopic plate, 55-cross bar, 56-second limiting column. DETAILED DESCRIPTION

[0049] Below in conjunction with the appended Figures 1-17 , the technical solutions in the embodiments of the present invention are clearly and completely described, but the protection scope of the present invention is not limited to the following.

[0050] Example 1

[0051] A multi-stage screening device for hot pot base processing, such as Figures 1-6As shown, it includes a screening box 1 (support legs are provided at the four corners of the bottom end of the screening box 1, which are not shown in the figure), a rectangular frame 2 arranged in the screening box 1 is rotated by a rotating shaft, a screening frame 3 is provided in the rectangular frame 2, screens 4 are distributed up and down in the screening frame 3 and divide the screening frame 3 into a plurality of screening cavities (the number of screens 4 is not limited in the present invention, and two screens 4 are provided in this embodiment to form three screening cavities), a first discharge port 6 is provided on the side wall of each of the screening cavities (in this embodiment, it is provided at the front side of the screening box 1), a discharge assembly is provided in the first discharge port 6, and a discharge assembly is provided in each of the screening cavities away from the first a strip opening 5 on one side of the discharge port 6, U-shaped rods 53 provided on the rectangular frame 2 and having the same number as the strip openings 5, a first telescopic plate 8 provided on each of the U-shaped rods 53, a first hydraulic rod 9 provided on the screening box 1 (disposed on the side of the screening box 1 away from the first discharge port 6) and used to drive the first telescopic plate 8 to pass through the corresponding strip opening 5, a plurality of second discharge ports 7 provided on the bottom wall of the screening box 1 and adapted to the first discharge port 6, a first limiting assembly for limiting the rectangular frame 2 to the screening box 1, and a vertical vibration assembly for driving the screening frame 3 to vibrate up and down;

[0052] like Figure 10 and Figure 11 As shown, when the screening frame 3 is rotated 90 degrees, the second discharge port 7 is located just below the first discharge port 6;

[0053] like Figure 1 、 Figure 3-Figure 6 As shown, the telescopic end of the first telescopic plate 8 is provided with a first connecting plate 10. The telescopic end of the first hydraulic rod 9 and the first connecting plate 10 are detachably connected. The first telescopic plate 8 is composed of multiple displacement plates distributed vertically (the connection relationship between the multiple displacement plates is not shown in the figure). Adjacent displacement plates are slidably connected. The adjacent sides of the adjacent displacement plates are provided with a limit slider on one side and a limit slot on the other side to ensure smooth extension and extension of the first telescopic plate 8 and prevent the displacement plates from detaching. The limit slider and limit slot are both existing technologies and are not shown in the figure.

[0054] like Figure 7-Figure 9 As shown, the discharge assembly includes a flexible telescopic tube 11 (such as a PVC transparent telescopic steel hose) fixedly disposed in the first discharge port 6, a sealing assembly detachably disposed in the first discharge port 6 and connected to the free end of the flexible telescopic tube 11, and a second limiting assembly for limiting the sealing assembly to the first discharge port 6; the flexible telescopic tube 11 is stored in the first discharge port 6 in a contracted state;

[0055] The sieve holes of the multiple sieves 4 distributed up and down gradually decrease in size from top to bottom. The side walls and bottom walls of the screening frame 3 are both provided with multiple sieve holes, and the sieve holes provided on the side walls and bottom walls of the screening frame 3 have a smaller sieve hole size than the sieve hole size of the lowest sieve 4.

[0056] Further, such as Figure 3 、 Figure 4 and Figure 6 As shown, the telescopic end of the first hydraulic rod 9 is provided with a first electromagnet 12 (existing technology, that is, magnetism is generated when power is applied and the magnetism disappears when power is removed). The first electromagnet 12 can contact the first connecting plate 10, and the first electromagnet 12 is magnetically connected to the first connecting plate 10 after power is applied.

[0057] Further, such as Figure 3 、 Figure 4 and Figure 6 As shown, the sealing assembly includes a connecting ring 13 detachably arranged in the first discharge port 6, and a cover plate 14 arranged in the connecting ring 13; one end of the flexible telescopic tube 11 is fixedly connected to the inner wall of the first discharge port 6, and the other end is fixedly connected to the connecting ring 13; Figure 8 As shown, after the flexible telescopic tube 11 is naturally extended, its length is longer than the distance between the first discharge port 6 and the second discharge port 7 directly below it;

[0058] like Figure 7-Figure 9 As shown, the second limiting assembly includes a first limiting groove 15 arranged on the inner wall of the first discharge port 6, a second electromagnet 19 (existing technology) arranged in the first limiting groove 15, a first spring 16 arranged on the side wall of the second electromagnet 19, an iron block 17 arranged at the end of the first spring 16 away from the second electromagnet 19 and slidingly connected to the first limiting groove 15, a limiting plug arranged on the side of the iron block 17 away from the first spring 16, and a second limiting groove 18 arranged on the outer wall of the connecting ring 13 and adapted to the limiting plug.

[0059] In addition, when the first telescopic plate 8 is extended to abut against the inner wall of the screening box 1, the first connecting plate 10 and the inner wall of the screening box 1 are magnetically connected, wherein the magnetism between the first electromagnet 12 and the first connecting plate 10 is greater than the magnetism between the first telescopic plate 8 and the inner wall of the screening box 1.

[0060] like Figure 7 and Figure 8 As shown, the side wall of the screening box 1 is arranged to be inclined along the direction of the first discharge port 6 .

[0061] Furthermore, the cover plate 14 and the connecting ring 13 are threadedly connected.

[0062] like Figure 1 、 Figure 2 and Figure 5 As shown, the vertical vibration assembly includes a plurality of third springs arranged between the screening frame 3 and the top and bottom ends of the rectangular frame 2, a telescopic rod 48 arranged outside the third springs, and a vibration motor 35 arranged at the bottom end of the screening frame 3.

[0063] like Figure 1 As shown, one end of the rotating shaft passes through the side wall of the screening box 1 and is connected to a hand wheel 49 ; the other end of the rotating shaft is fixedly connected to a cross bar 55 provided on the side wall of the rectangular frame 2 .

[0064] like Figure 2 As shown (in all drawings, only Figure 2 The first limiting assembly is drawn), the first limiting assembly includes two seventh hydraulic rods 51 arranged on the bottom wall of the screening box 1, a sliding plate 52 arranged at the top of the seventh hydraulic rod 51 and slidably connected to the inner wall of the screening box 1, a plurality of second limiting columns 56 arranged at the top of the sliding plate 52, and a limiting hole (existing technology, not drawn in the figure) arranged at the bottom end of the rectangular frame 2 and on the outer wall of the rectangular frame 2 on the side close to the first discharge port and adapted to the second limiting columns 56.

[0065] Further, such as Figure 1 、 Figure 2 and Figure 6 As shown, a feed port is provided at the top of the screening frame 3 , and a feed pipe 50 is connected to the feed port through a thread. The top of the feed pipe 50 passes through an opening provided at the top of the screening box 1 and extends to the outside of the screening box 1 .

[0066] It is worth noting that, in the present invention, the hydraulic cylinder of the first hydraulic rod 9 is arranged on the side wall of the screening box 1 , which can reduce the space occupied by the first hydraulic rod 9 in the screening box 1 and significantly improve the space utilization rate in the screening box 1 .

[0067] Working Principle: First, the rectangular frame 2 is rotated to a horizontal position by turning the handwheel 49. Then, the seventh hydraulic rod 51 is activated to move the sliding plate upward until the second limiting post 56 at the top of the sliding plate 52 moves into the limiting hole, thereby securing the rectangular frame 2 to the screening box 1. Raw materials are then added to the screening frame 3 through the feed pipe 50. After addition, the vibration motor 35 is activated, causing the rectangular frame 2 and the raw materials therein to vibrate vertically. This vibration process achieves the purpose of graded screening, with the smallest raw materials directly passing through the sieve holes in the side and bottom walls of the screening frame 3 and falling to the bottom of the screening box 1. (It is worth noting that each of the second discharge ports 7 is equipped with a blocking plate or piston, which is not shown in the figure because it is conventional technology.) After screening is completed, the blocking plate or piston is removed to collect the raw materials that have fallen to the bottom wall of the screening box 1. Furthermore, the feed pipe 50 needs to be rotated and removed from the screening frame 3.

[0068] Afterwards, the three first hydraulic rods 9 are started synchronously, so that the telescopic end of the first hydraulic rod 9 is aligned with the first connecting plate 10 and moves until the first electromagnet 12 contacts the first connecting plate 10 adapted thereto, and then the first hydraulic rod 9 continues to be extended, and the connecting plate and the first telescopic plate 8 are pushed through the strip opening 5 and moved to the inside of the screening box 1 until they abut against the side of the screening box 1 where the first discharge port 6 is set. At this time, the first connecting plate 10 is magnetically connected to the inner wall of the screening box 1.

[0069] Afterwards, the first hydraulic rod 9 is returned to its original position, and the second limiting column is separated from the limiting hole, and then the hand wheel 49 is rotated to rotate the rectangular frame 2 90 degrees toward the front side of the screening box 1 (as shown in FIG. Figure 7 、 Figure 8 and Figure 10 As shown), the seventh hydraulic rod 51 is then activated to move the sliding plate upward until the second limiting post 56 at the top of the sliding plate 52 moves into the limiting hole to fix the rotated rectangular frame 2 to the screening box 1. Figure 8 As shown, the second electromagnet 19 is energized to move the iron block 17 toward the second electromagnet 19, thereby moving the limiting plug out of the second limiting slot 18. Figure 7 The structure becomes Figure 8 and Figure 10 ( Figure 10 is Figure 6 (a structure rotated 90 degrees on the basis of the above). Under the action of gravity, the connecting ring 13 and cover plate 14 fall, driving the flexible telescopic tube 11 to fall and extend. The connecting ring 13 and cover plate 14 pass through the second discharge port 7 and are located below the second discharge port 7. Afterwards, the cover plate 14 is removed, and the raw materials in each second discharge port 7 can be collected.

[0070] After the collection is completed, the cover 14 is closed and moved upward. This process requires the staff to extend their hands into the screening box 1 along the second discharge port 7 to operate. During the upward movement, the flexible telescopic tube 11 continuously contracts until it is retracted into the first discharge port 6 again. Thereafter, the second electromagnet 19 is de-energized to achieve the limit of the sealing assembly.

[0071] Afterwards, the rectangular frame 2 is rotated to the original position (i.e., the position during screening), and the first hydraulic rod 9 is started again so that its telescopic end passes through the strip opening 5 and contacts the first connecting plate 10. Then, the first electromagnet 12 is energized to magnetically connect the first connecting plate 10 and the first electromagnet 12. Then, the first hydraulic rod 9 is retracted to move the first connecting plate 10 and the first telescopic plate 8 out of the screening box 1. During this process, the first telescopic plate 8 continues to retract until it moves to the original position. Then, the first electromagnet 12 is de-energized to separate the first electromagnet 12 and the first connecting plate 10. Finally, the first hydraulic rod 9 returns to its original position.

[0072] Afterwards, the next batch of raw material screening operations can be carried out normally.

[0073] Example 2

[0074] In Example 1, the method of discharging the material by rotating the screening frame 3 90 degrees is a static discharging method. This method will make it difficult to completely discharge the raw materials remaining in the screen 4 and the sieve holes of the screening frame 3, thereby resulting in incomplete collection of the raw materials. Based on this, on the basis of Example 1, as shown in FIG. Figure 13 and Figure 14 As shown, the screening device further includes a horizontal vibration component disposed on the side wall of the screening frame 3 (i.e., the side of the screening box 1 away from the first hydraulic rod 9) and capable of driving the screening frame 3 to vibrate in the horizontal direction; Figure 15 As shown, each U-shaped rod 53 is provided with a slider at the end thereof (not shown in the prior art), and the rectangular frame is provided with a vertical slide groove 22 that slides with the slider. Figure 16 As shown, the side wall of the screening box 1 (that is, the side of the screening box 1 on which the first hydraulic rod 9 is provided) is provided with a through groove 23, and a first movable plate 24 is slidably provided in the through groove 23, and multiple first hydraulic rods 9 are provided on the first movable plate 24; the outer wall of the screening box 1 is provided with a first fixed plate 25, and the first fixed plate 25 is provided with a second hydraulic rod 26, and the telescopic end of the second hydraulic rod 26 is fixedly connected to the first movable plate 24 by a second connecting plate; a second telescopic plate 54 is provided between the top of the first movable plate 24 and the top of the through groove 23, and when the first movable plate 24 is at the bottom end of the through groove 23, the first electromagnet 12 on the first hydraulic rod 9 is just horizontally aligned with the first connecting plate 10 on the U-shaped rod 53 located at the bottom end of the vertical slide 22 at this time.

[0075] Further, such as Figure 13 and Figure 14 As shown, the horizontal vibration assembly includes a second fixed plate 27 arranged on the side wall of the screening box 1 (that is, the side of the screening box 1 away from the first hydraulic rod 9), a second movable plate 28 slidably arranged on the second fixed plate 27, a third hydraulic rod 29 arranged on the second fixed plate 27 and the telescopic end of which is fixedly connected to the second movable plate 28 away from the screening box 1, a strip groove arranged at the top of the second movable plate 28, a second spring 30 arranged on the inner wall of the strip groove, and a movable plate 28 arranged at the telescopic end of the second spring 30 and slidably connected to the strip groove. A movable block, a striking rod 31 horizontally arranged at the top of the movable block, a vertical plate 32 arranged at the top of the second movable plate 28 and located on both sides of the strip groove, a rotating rod 33 rotatably arranged between the two vertical plates 32, an eccentric wheel 34 sleeved on the outside of the rotating rod 33 and capable of contacting one end of the striking rod 31, and a motor 35 arranged on the side wall of one of the vertical plates 32 and with the output end connected to one end of the rotating rod 33; the end of the striking rod 31 away from the eccentric wheel 34 passes through the side wall of the screening box 1 and extends to the interior of the screening box 1. It is worth noting that the present invention arranges the main components of the horizontal vibration assembly on the outer wall of the screening box 1, which can reduce its occupied space in the screening box 1 and significantly improve the space utilization rate in the screening box 1.

[0076] Working principle: When the screening frame 3 rotates 90 degrees to unload the material, the third hydraulic rod 29 is started to make the second movable plate 28 and the components thereon move synchronously toward the screening box 1. When one end of the impact rod 31 extends into the screening box 1 (the impact rod 31 is slidably connected to the side wall of the screening box 1) and is about to touch the screening frame 3, it stops moving, and then the motor 35 is started to make the rotating shaft drive the eccentric wheel 34 to rotate, thereby impacting the end of the impact rod 31 located outside the screening box 1. In this way, the impact rod 31 can vibrate in the horizontal direction, so that the end away from the eccentric wheel 34 can impact the screening frame 3 in the horizontal direction, thereby causing the screening frame 3 to vibrate in the horizontal direction, thereby causing the raw materials remaining in the screening frame 3 to fall off quickly, effectively improving the collection rate and efficiency. In actual implementation, an impact plate or a U-shaped impact rod can be set at one end of the impact rod 31 located in the screening box 1. When the impact plate is set, the outer diameter of the impact plate is larger than the inner diameter of the feed port. When the U-shaped impact rod is set, the two free ends of the U-shaped impact rod hit the screening frame 3 at a position other than the feed port, but on both sides of the feed port. In this way, the technical defect of the impact rod 31 failing to hit due to hitting into the feed port can be avoided.

[0077] Because the height and width of the screening frame 3 may vary in actual implementation, the distance between the screening frame 3 and the side of the screening box 1 provided with the horizontal vibration assembly will be different before and after the screening frame 3 is rotated. The horizontal vibration assembly provided in this embodiment will not interfere with the screening operation of the screening frame 3, and can also adapt to the horizontal vibration requirements of the screening frame 3 at different distances from the side of the screening box 1 provided with the horizontal vibration assembly after the screening frame 3 is rotated 90 degrees.

[0078] In addition, when the screening frame 3 vibrates horizontally, it will drive the U-shaped plate 40 and the first telescopic plate 8 to vibrate accordingly, thereby causing the slider to slide in the vertical sliding groove 22 adapted thereto, thereby adapting to the horizontal vibration of the screening frame 3 .

[0079] After all the raw materials have been collected, the screening frame 3 is rotated to its original position. At this point, under the weight of the rectangular frame and the first telescopic plate 8 thereon, the slider automatically moves downward to the bottom of the vertical chute 22. When the telescopic plate is needed after the next batch of raw materials has been screened, that is, before the screening frame 3 is rotated 90 degrees, the first hydraulic rod 9 is first activated to extend the first hydraulic rod 9 until the first electromagnet 12 contacts the connecting plate. The second hydraulic rod 26 is then activated to move the movable plate upward until it is aligned with the strip opening 5. After this, the first telescopic plate 8 can be smoothly pushed in the manner described in Example 1.

[0080] The second telescopic plate 54 can not only adapt to the up and down movement of the first movable plate 24, but also block the through slot 23 above the first movable plate 24 to prevent the raw materials from leaking out during screening.

[0081] Example 3

[0082] In Example 2, when unloading, the flexible telescopic tube 11 itself is in a certain elongated state (such as under the action of the gravity of the connecting ring 13). When the screening frame 3 vibrates horizontally, the flexible telescopic tube 11 will be continuously pulled in order to adapt to the deformation, thereby causing it to continuously move up and down. During the movement, it will continuously collide and rub against the inner wall of the second discharge port 7, affecting the service life of the flexible telescopic tube 11. At the same time, during the continuous movement of the flexible telescopic tube 11, the connecting ring 13 at its bottom end will also change position, thereby causing the position of the discharge port to change, which is not conducive to smooth material connection.

[0083] Based on this, on the basis of Example 2, as Figure 11 and Figure 12 As shown, two third movable plates 38 are parallel and slidingly provided on the bottom wall of the screening box 1. The ends of the two third movable plates 38 that are away from each other are respectively connected to the fourth hydraulic rods 37 provided at the bottom end of the screening box 1. The ends of the two third movable plates 38 that are close to each other are respectively provided with first limiting columns 39, and the outer wall of the connecting ring 13 is provided with a socket adapted to the first limiting columns 39.

[0084] Working principle: When the connecting ring 13 falls below the second discharge port 7, the fourth hydraulic rod 37 is activated to move the two movable plates toward each other until the first limiting posts 39 on the two movable plates are inserted into the sockets on the outer wall of the connecting ring 13, thereby limiting the connecting ring 13 to a certain height below the screening box 1. Figure 1 As shown, at this time, the flexible telescopic tube 11 is mainly located in the screen box, so the flexible telescopic tube 11 in the screen box 1 is in a bent state rather than a vertical state. When the screen frame 3 vibrates horizontally, the flexible telescopic tube 11 in the screen box 1 deforms accordingly. During deformation, the bent portion moves horizontally, and there will be no large-scale collision or friction with the position of the second discharge port 7 due to up and down movement, which effectively improves the service life of the flexible telescopic tube 11. At the same time, because the position of the connecting ring 13 is fixed, the material connection position does not change, ensuring smooth material connection. At the same time, as the flexible telescopic tube 11 continues to vibrate horizontally with the screen frame 3, it can prevent the accumulation and residue of raw materials in the flexible telescopic tube 11, thereby improving the smoothness of material discharge.

[0085] Example 4

[0086] In Examples 1-3, manual operation is used to return the sealing component and the flexible telescopic tube 11 to their original positions. During manual operation, it is difficult for the staff to accurately move the sealing component to the corresponding position of the first discharge port 6, making it difficult for the sealing component to be limited to the first discharge port 6. Secondly, during the continuous upward movement of the sealing component, the flexible telescopic tube 11 is not in a vertical state, but is continuously bent, making it difficult for it to smoothly contract in the vertical direction. Based on this, on the basis of any one of Examples 1-3, as Figure 11-12 As shown, a U-shaped plate 40 is slidably provided on the bottom wall of the screening box 1, and a plurality of fifth hydraulic rods 41 adapted to the second discharge port 7 are provided on the U-shaped plate 40, and a third electromagnet 42 is provided at the telescopic end of the fifth hydraulic rod 41. When the third electromagnet 42 is energized, it is magnetically connected to the cover plate 14; a sixth hydraulic rod 43 is provided at the bottom end of the screening box 1, and the telescopic end of the sixth hydraulic rod 43 is fixedly connected to the U-shaped plate 40.

[0087] Further, such as Figure 11-12As shown, the exterior of each fifth hydraulic rod 41 is uniformly distributed around the center of its telescopic end. The top ends of the multiple limit rods 44 are collectively connected to a limit ring 45. The bottom ends of all limit rods 44 penetrate the bottom wall of the U-shaped plate 40 and are collectively connected to a limit plate 46. When the limit plate 46 contacts the U-shaped plate 40, the limit ring 45 precisely contacts the side wall of the screening frame 3. The inner walls of the limit ring 45 and the inner walls of the limit rods 44 are respectively slidably connected to the outer wall of the flexible telescopic tube 11. Furthermore, the limit plate 46 and the bottom wall of the U-shaped plate 40 are magnetically connected.

[0088] Working Principle: After the screening frame 3 has finished screening and rotated 90 degrees, the sixth hydraulic rod 43 is activated, causing the U-shaped plate 40 to slide along the bottom end of the screening box 1 until it slides directly below the second discharge port 7 (at which point the sixth hydraulic rod 43 is fully extended). The three fifth hydraulic rods 41 are then activated, causing their telescopic ends to pass through the three second discharge ports 7 and move upward until they contact the three cover plates 14. The third electromagnet 42 is then energized, magnetically connecting it to the cover plates 14 and releasing the second limiter assembly. This causes the three fifth hydraulic rods 41 to drive the sealing assembly downward until the connecting ring 13 moves to a position that matches the first limiter post 39. The connecting ring 13 is then limited by the first limiter post 39. The third electromagnet 42 is then de-energized, causing the U-shaped plate 40 to return to its original position.

[0089] After the material is taken, the U-shaped plate 40 is moved again to the bottom of the second discharge port 7 and the first limiting column 39 is released from the fixing of the connecting ring 13, and the cover plate 14 is installed on the connecting ring 13. Thereafter, the fifth hydraulic rod 41 is extended until the third electromagnet 42 contacts and magnetically connects with the cover plate 14. Thereafter, the fifth hydraulic rod 41 is contracted to extend the flexible telescopic tube 11 from a slightly bent state to a vertical state. Thereafter, the limiting plate 46 is moved upward. During the upward movement of the limiting plate 46, the limiting ring 45 and the plurality of first limiting columns 39 are respectively connected to the connecting ring 13 and the outer surface of the flexible telescopic tube 11. The wall is connected by sliding. When the limit plate 46 moves to contact the bottom wall of the U-shaped plate 40 and is magnetically connected, the limit ring 45 just contacts the side wall of the screening frame 3. Then, the fifth hydraulic rod 41 is started to move the sealing assembly upward. During the upward movement, the flexible telescopic tube 11 is always connected to the limit rod 44 by sliding. Due to the limiting effect of the first limit column 39, it can ensure that the flexible telescopic tube 11 is always in a vertical state, so that it can be smoothly contracted in the vertical direction until it is completely stored in the first discharge port 6. When the fifth hydraulic rod 41 is fully extended, the connecting ring 13 is just in its original position. Afterwards, the third electromagnet 42 is de-energized to return the fifth hydraulic rod 41, the limit ring 45 and the limit rod 44 to their original positions.

[0090] Further, on the basis of any one of Examples 1-4, as Figure 17 As shown, each strip-shaped opening 5 is hingedly connected to an inwardly opening baffle 20, which is provided with multiple sieve holes of the same diameter as the sidewalls of the screening frame 3. A return spring (not shown in the prior art) is installed at the hinge of each baffle 20 to ensure that the baffle 20 can smoothly return to its original position after opening. The baffle 20 can block the strip-shaped opening 5, preventing the raw material from directly escaping through the strip-shaped opening 5 during screening, resulting in insufficient screening of the raw material obtained from the bottom wall of the screening box 1.

[0091] It is worth noting that in the description of this application, the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "water", "top", "bottom", "inside", "outside" and the like indicate the directions or positional relationships based on the attached Figure 1 The orientation or position relationship shown.

Claims

1. A multi-stage screening device for hot pot base processing, characterized in that: The screen box comprises a rectangular frame arranged in the screen box which is rotated by a rotating shaft, a screen frame arranged in the rectangular frame, screens distributed up and down in the screen frame and dividing the screen frame into a plurality of screen cavities, a first discharge port arranged on a side wall of each screen cavity, a discharge assembly arranged in the first discharge port, a strip port arranged on a side of each screen cavity away from the first discharge port, U-shaped rods arranged on the rectangular frame and having the same number as the strip ports, a first telescopic plate arranged on each U-shaped rod, a first hydraulic rod arranged on the screen box and used to drive the first telescopic plate to pass through the strip ports adapted thereto, a plurality of second discharge ports arranged on the bottom wall of the screen box and adapted to the first discharge port, a first limiting assembly for limiting the rectangular frame to the screen box, and a vertical vibration assembly for driving the screen frame to vibrate up and down; When the screening frame rotates 90 degrees, the second discharge port is located just below the first discharge port; The telescopic end of the first telescopic plate is provided with a first connecting plate, and the telescopic end of the first hydraulic rod and the first connecting plate are detachably connected; The discharge assembly includes a flexible telescopic tube fixedly disposed in the first discharge port, a sealing assembly detachably disposed in the first discharge port and connected to the free end of the flexible telescopic tube, and a second limiting assembly for limiting the sealing assembly to the first discharge port; the flexible telescopic tube is retracted and stored in the first discharge port; The apertures of the multiple screens distributed above and below gradually decrease from top to bottom. The side walls and bottom wall of the screening frame are both provided with multiple screen holes. The apertures of the screen holes provided on the side walls and bottom wall of the screening frame are both smaller than the aperture of the screen holes at the bottom. A first electromagnet is provided at the telescopic end of the first hydraulic rod. The first electromagnet is capable of contacting the first connecting plate and is magnetically connected to the first connecting plate when energized. When the first telescopic plate is extended to abut against the inner wall of the screening box, the first connecting plate and the inner wall of the screening box are magnetically connected, wherein the magnetic connection between the first electromagnet and the first connecting plate is greater than the magnetic connection between the first telescopic plate and the inner wall of the screening box. It also includes a horizontal vibration component arranged on the side wall of the screening frame and capable of driving the flipped screening frame to vibrate in the horizontal direction; a slider is provided at the end of each U-shaped rod, and a vertical slide groove that slides with the slider is provided on the rectangular frame.

2. A multi-stage screening device for hot pot soup base processing according to claim 1, characterized in that: The sealing assembly includes a connecting ring detachably disposed within the first discharge port, and a cover plate disposed within the connecting ring; one end of the flexible telescopic tube is fixedly connected to the inner wall of the first discharge port, and the other end is fixedly connected to the connecting ring; when the flexible telescopic tube is naturally extended, its length is longer than the distance between the first discharge port and the second discharge port directly below it; The second limiting assembly includes a first limiting groove arranged on the inner wall of the first discharge port, a second electromagnet arranged in the first limiting groove, a first spring arranged on the side wall of the second electromagnet, an iron block arranged on the end of the first spring away from the second electromagnet and slidingly connected to the first limiting groove, a limiting plug arranged on the side of the iron block away from the first spring, and a second limiting groove arranged on the outer wall of the connecting ring and adapted to the limiting plug.

3. A multi-stage screening device for hot pot soup base processing according to claim 2, characterized in that: Each strip-shaped opening is hinged with an inward-opening baffle, which is provided with a plurality of sieve holes with the same aperture as the side wall of the screening frame; a reset spring is provided at the hinge of the baffle.

4. A multi-stage screening device for hot pot soup base processing according to claim 3, characterized in that: A through slot is provided on the side wall of the screening box, a first movable plate is slidingly provided in the through slot, and multiple first hydraulic rods are all provided on the first movable plate; a first fixed plate is provided on the outer wall of the screening box, a second hydraulic rod is provided on the first fixed plate, and the telescopic end of the second hydraulic rod is fixedly connected to the first movable plate through a second connecting plate; a second telescopic plate is provided between the top end of the first movable plate and the top end of the through slot.

5. A multi-stage screening device for hot pot soup base processing according to claim 4, characterized in that: The horizontal vibration assembly includes a second fixed plate arranged on the side wall of the screening box, a second movable plate slidably arranged on the second fixed plate, a third hydraulic rod arranged on the second fixed plate and whose telescopic end is fixedly connected to the second movable plate away from the screening box, a strip groove arranged at the top of the second movable plate, a second spring arranged on the inner wall of the strip groove, and a movable block arranged at the telescopic end of the second spring and slidably connected to the strip groove, a striking rod horizontally arranged at the top of the movable block, a vertical plate arranged at the top of the second movable plate and located on both sides of the strip groove, a rotating rod rotatably arranged between the two vertical plates, an eccentric wheel arranged on the outside of the rotating rod and capable of contacting one end of the striking rod, and a motor arranged on the side wall of one of the vertical plates and whose output end is connected to one end of the rotating rod; the end of the striking rod away from the eccentric wheel passes through the side wall of the screening box and extends to the interior of the screening box.

6. A multi-stage screening device for hot pot soup base processing according to claim 5, characterized in that: Two third movable plates are parallel and slidingly arranged on the bottom wall of the screening box. The ends of the two third movable plates that are away from each other are respectively connected to the fourth hydraulic rods arranged at the bottom end of the screening box. The ends of the two third movable plates that are close to each other are respectively provided with first limiting columns, and the outer wall of the connecting ring is provided with sockets that are adapted to the first limiting columns.

7. A multi-stage screening device for hot pot soup base processing according to claim 6, characterized in that: A U-shaped plate is slidingly provided on the bottom wall of the screening box, and a plurality of fifth hydraulic rods adapted to the second discharge port are provided on the U-shaped plate. The telescopic end of the fifth hydraulic rod is provided with a third electromagnet, which is magnetically connected to the cover plate after being energized; a sixth hydraulic rod is provided at the bottom end of the screening box, and the telescopic end of the sixth hydraulic rod is fixedly connected to the U-shaped plate.

8. A multi-stage screening device for hot pot soup base processing according to claim 7, characterized in that: The outside of each fifth hydraulic rod is evenly distributed with multiple limit rods around the circumference of a circle with the center of its telescopic end as the center. The top ends of the multiple limit rods are commonly connected to a limit ring. The bottom ends of all the limit rods pass through the bottom wall of the U-shaped plate and are commonly connected to the limit plate. When the limit plate contacts the U-shaped plate, the limit ring just contacts the side wall of the screening frame; the inner wall of the limit ring and the inner wall of the limit rod are respectively slidably connected to the outer wall of the flexible telescopic tube.

9. A multi-stage screening device for hot pot soup base processing according to claim 8, characterized in that: The limiting plate and the bottom wall of the U-shaped plate are magnetically connected.

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