Accurate and quantitative probiotic adding device

By designing a precise quantitative addition device for probiotics, using hydraulic rods, powder flow meters and solenoid valves, automatic quantitative addition of probiotic powder is achieved, which solves the problem of manual weighing and proportioning, and improves production efficiency and accuracy.

CN223086320UActive Publication Date: 2025-07-11WUHAN MIHUAN HEALTH IND DEV CO LTD
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Patent Information

Application Number
CN202422170742.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-05
Publication Date
2025-07-11
Estimated Expiration
2034-09-05

AI Technical Summary

Technical Problem

During the production and processing of existing probiotic powders, it is necessary to manually control the weighing and proportioning of probiotic powders of different bacteria, resulting in a long operation time and an increase in manual labor.

Method used

A precise quantitative addition device for probiotics is designed, including a cutting mechanism, an additive mechanism and a placement mechanism. It uses hydraulic rods, powder flowmeters and solenoid valves to realize automatic quantitative addition of probiotic powder. The opening and closing of the solenoid valve is monitored and controlled through the controller to ensure accurate quantitative.

Benefits of technology

It realizes automatic and accurate quantitative addition of probiotic powder, reduces manual operation time, and improves production efficiency and accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an accurate and quantitative probiotic adding device, and belongs to the technical field of probiotic powder production and processing. The precise and quantitative probiotic adding device comprises a discharging mechanism, an adding mechanism and placing mechanisms, the discharging mechanism comprises a base, one side of the base is connected with a hydraulic rod, one side of the output end of the hydraulic rod is connected with an anti-falling ring, the interior of the anti-falling ring is connected with a charging barrel, and four placing grooves are formed in the charging barrel; storage barrels are arranged in the four containing grooves, the bottom ends of the storage barrels communicate with discharging pipes, the upper ends of the discharging pipes penetrate through the storage barrels to extend into the storage barrels and are sleeved with powder flow meters, the discharging pipes are sleeved with electromagnetic valves, and the bottom ends of the discharging pipes penetrate through the charging barrels; moving seats are slidably arranged on one sides of the inner walls of the U-shaped frames, vertical plates are connected to the upper ends of the moving seats, rotating shafts are rotatably connected to the opposite faces of the vertical plates, and an adding box is connected between the rotating shafts.
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Description

Technical Field

[0001] The utility model relates to the technical field of probiotic powder production and processing, and specifically relates to a probiotic precise quantitative addition device. Background Technique

[0002] Probiotic powder is a powdery substance composed of various different probiotics formulated in a certain proportion. Probiotic powder is a microorganism beneficial to human health, which can maintain the balance of intestinal health. It mainly includes bifidobacteria and lactobacilli, and has functions such as intestinal health care, immune enhancement, and regulation.

[0003] Based on the above, the inventor found the following problems: In the current production and processing of probiotic powder, first, it is necessary to weigh and mix probiotic powder of different strains. The operator manually controls the weighing device to weigh the probiotic powder of different strains and adjusts according to the required mixing ratio. Since the adjustment time is relatively long, the labor force is increased.

[0004] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies, and a probiotic precise quantitative addition device is provided, in order to achieve the purpose of having more practical value. Content of the Utility Model

[0005] The purpose of the utility model is to provide a probiotic precise quantitative addition device to solve the problems put forward in the above background technique.

[0006] In view of the above problems, the technical solution proposed by the utility model is:

[0007] A probiotic precise quantitative addition device includes a feeding mechanism, an addition mechanism and a placement mechanism. The feeding mechanism includes a base. One side of the base is connected with a hydraulic rod. One side of the output end of the hydraulic rod is connected with an anti - detachment ring. The inside of the anti - detachment ring is connected with a material cylinder. Four placement grooves are opened inside the material cylinder. Storage cylinders are arranged inside the four placement grooves. The bottom ends of the storage cylinders are all communicated with discharge pipes. The upper ends of the discharge pipes penetrate into the storage cylinders and extend to the inside, and are sleeved with powder flow meters. The outside of the discharge pipes is sleeved with electromagnetic valves, and the bottom ends of the discharge pipes penetrate through the material cylinder. The addition mechanism includes a pair of U - shaped frames. The pair of U - shaped frames are respectively arranged on the front and back of the base. One side of the inner walls of the pair of U - shaped frames is slidably provided with moving seats. The upper ends of the pair of moving seats are both connected with vertical plates. One side of the pair of vertical plates facing each other is rotatably connected with a rotating shaft. An addition box is connected between the pair of rotating shafts.

[0008] Furthermore, a cylinder cover is arranged at the upper end of the material cylinder. One side of the outer wall of the material cylinder below the anti - detachment ring is connected with a controller. The controller is electrically connected with the electromagnetic valve and the powder flow meter.

[0009] The beneficial effects of adopting the above further solution are as follows: by setting the cylinder cover, the sealing property of the storage cylinder is ensured. By setting the controller, which is electrically connected between the solenoid valve and the powder flowmeter, the powder flowmeter monitors the flow rate of probiotic powder in the discharge pipe. When the added amount reaches the set value at the beginning, the powder flowmeter transmits the data signal to the controller, and then the controller controls the solenoid valve to close.

[0010] Further, a first motor is connected to one side of the outer wall of one of the vertical plates, and the output end of the first motor is in transmission connection with one of the rotating shafts.

[0011] The beneficial effects of adopting the above further solution are as follows: by setting the first motor, when the first motor is started, it is convenient to realize the rotation of one of the rotating shafts connected to its output end.

[0012] Further, a chute is provided on one side of the inner wall of each of the pair of U-shaped frames, and the chute is slidably connected to the moving seat. A screw rod is rotatably connected inside each of the pair of U-shaped frames. One end of each of the pair of screw rods penetrates through the moving seat and extends to the outside, and is threadedly connected to the moving seat.

[0013] The beneficial effects of adopting the above further solution are as follows: by setting the screw rod, when the screw rod rotates, it is convenient for the moving seat threadedly connected to the outside of the screw rod to perform linear movement under the sliding action of the chute.

[0014] Further, one end of each of the pair of screw rods penetrates through the U-shaped frame and extends to the outside, and a synchronous pulley is sleeved on each of them. A synchronous belt is wound between the pair of synchronous pulleys, and there is a certain distance between the synchronous belt and the outside of the hydraulic rod.

[0015] The beneficial effects of adopting the above further solution are as follows: when one screw rod rotates, the rotation of the other screw rod can be realized under the transmission action of the synchronous pulley and the synchronous belt. At the same time, there is a certain distance between the synchronous belt and the hydraulic rod, avoiding the influence of the hydraulic rod on the transmission process of the synchronous belt.

[0016] Further, a second motor is connected to the outside of one of the U-shaped frames away from the synchronous pulley, and the output end of the second motor is in transmission connection with one of the screw rods.

[0017] The beneficial effects of adopting the above further solution are as follows: by setting the second motor, when the second motor is started, it is convenient for one of the screw rods connected to its output end to rotate.

[0018] Further, the placing mechanism includes a collecting cylinder which is arranged on one side of the upper end of the base. A shielding cover is provided on the upper end surface of the collecting cylinder. An opening is provided on one side of the shielding cover. A connecting plate is connected to the outer wall of the shielding cover away from the opening. A first threaded hole is provided at one end of the connecting plate. A second threaded hole is provided on the outside of the collecting cylinder near the first threaded hole. A bolt is threadedly connected between the first threaded hole and the second threaded hole.

[0019] The beneficial effect of adopting the above further scheme is that by providing the shielding cover and an opening on one side of the shielding cover, the opening facilitates the adding box to be placed inside the shielding cover through the opening during the movement process, and the diameter of the adding box is smaller than that of the shielding cover and the collecting cylinder, thus facilitating the flipping of the adding box. By providing the first threaded hole and the second threaded hole, and threadedly connecting a bolt between the first threaded hole and the second threaded hole, when the bolt is removed, the disassembly between the shielding cover and the collecting cylinder can be realized.

[0020] Further, a U-shaped groove is provided on the upper end of the base at the position of the collecting cylinder. A magnet block is slidably arranged inside the U-shaped groove. The upper end of the magnet block is connected to the bottom end of the collecting cylinder. An electromagnet is connected inside the base at the position of the U-shaped groove. The electromagnet and the magnet block adsorb each other.

[0021] The beneficial effect of adopting the above further scheme is that by providing the electromagnet, when the electromagnet is energized, the electromagnet adsorbs the magnet block, thereby facilitating the fixing of the collecting cylinder on the base to ensure the stability of the placement of the collecting cylinder during the tilting process of the adding box.

[0022] Compared with the prior art, the beneficial effect of the present utility model is as follows: for this precise quantitative adding device for probiotics, by providing a placing groove inside the material cylinder, it is convenient to sequentially place storage cylinders containing different types of probiotics into the placing groove. Place the cylinder cover on the material cylinder. Then, by providing a hydraulic rod, when the adding mechanism is not below the material cylinder, the hydraulic rod works, which will drive the anti-detachment ring to drive the material cylinder to lift and lower. By connecting a discharge pipe at the bottom end of the storage cylinder, and arranging a powder flowmeter on the outer part of the upper end of the discharge pipe, a solenoid valve is sleeved on the outside of the center of the discharge pipe, and both the powder flowmeter and the solenoid valve are electrically connected to the controller. By inputting the adding amount through the controller, the controller controls the solenoid valve to work, so that the probiotic powder inside the storage cylinder enters the adding box through the powder flowmeter and the solenoid valve. The powder flowmeter monitors the flow rate of the probiotic powder in the discharge pipe. When the adding amount reaches the set value at the beginning, the powder flowmeter transmits a data signal to the controller, and then the controller controls the solenoid valve to close, stopping the addition of probiotic powder into the adding box, thereby completing the quantitative feeding. Description of the Drawings

[0023] Figure 1Schematic three-dimensional structure diagram of a precise quantitative addition device for probiotics provided by the present utility model;

[0024] Figure 2 Exploded three-dimensional structure diagram of the material cylinder of a precise quantitative addition device for probiotics provided by the present utility model;

[0025] Figure 3 Front sectional structure diagram of the storage cylinder of a precise quantitative addition device for probiotics provided by the present utility model;

[0026] Figure 4 Partial three-dimensional structure diagram of the addition mechanism of a precise quantitative addition device for probiotics provided by the present utility model;

[0027] Figure 5 Exploded three-dimensional structure diagram of the placement mechanism of a precise quantitative addition device for probiotics provided by the present utility model.

[0028] In the figure: 100, blanking mechanism; 1001, base; 1002, hydraulic rod; 1003, anti - detachment ring; 1004, material cylinder; 1005, placement groove; 1006, storage cylinder; 1007, discharge pipe; 1008, powder flowmeter; 1009, solenoid valve; 1010, controller; 1011, cylinder cover; 200, addition mechanism; 2001, U - shaped frame; 2002, moving seat; 2003, vertical plate; 2004, rotating shaft; 2005, addition box; 2006, first motor; 2007, chute; 2008, screw; 2009, synchronous pulley; 2010, second motor; 300, placement mechanism; 3001, collection cylinder; 3002, shielding cover; 3003, connecting plate; 3004, bolt; 400, U - shaped groove; 500, electromagnet; 600, magnet block. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0030] Please refer to Figures 1 - 5, the present utility model provides a technical solution: a precise quantitative addition device for probiotics, including a feeding mechanism 100, an addition mechanism 200, and a placement mechanism 300. The feeding mechanism 100 includes a base 1001. One side of the base 1001 is connected to a hydraulic rod 1002. One side of the output end of the hydraulic rod 1002 is connected to an anti - detachment ring 1003. The inside of the anti - detachment ring 1003 is connected to a material cylinder 1004. Four placement grooves 1005 are opened inside the material cylinder 1004. Storage cylinders 1006 are provided inside the four placement grooves 1005. The bottom ends of the storage cylinders 1006 are all communicated with discharge pipes 1007. The upper ends of the discharge pipes 1007 penetrate through the storage cylinders 1006 and extend to the inside, and are sleeved with powder flow meters 1008. The outside of the discharge pipes 1007 is sleeved with solenoid valves 1009, and the bottom ends of the discharge pipes 1007 penetrate through the material cylinder 1004. The addition mechanism 200 includes a pair of U - shaped frames 2001. The pair of U - shaped frames 2001 are respectively arranged on the front and back of the base 1001. One side of the inner walls of the pair of U - shaped frames 2001 is slidably provided with moving seats 2002. The upper ends of the pair of moving seats 2002 are all connected with vertical plates 2003. One side of the pair of vertical plates 2003 opposite to each other is rotatably connected with a rotating shaft 2004. An addition box 2005 is connected between the pair of rotating shafts 2004. By arranging the placement grooves 1005 inside the material cylinder 1004, it is convenient to sequentially place the storage cylinders 1006 storing different types of probiotics into the inside of the placement grooves 1005. By setting the hydraulic rod 1002, when the addition mechanism 200 is not below the material cylinder 1004, the hydraulic rod 1002 works, and the anti - detachment ring 1003 drives the material cylinder 1004 to lift and lower. By communicating the bottom ends of the storage cylinders 1006 with the discharge pipes 1007, and arranging the powder flow meters 1008 on the outer part of the upper ends of the discharge pipes 1007, and sleeving the solenoid valves 1009 on the outer part of the centers of the discharge pipes 1007, the powder flow meters 1008 monitor the flow rate of the probiotic powder in the discharge pipes 1007. By setting the addition box 2005, it is convenient to collect the materials discharged from the discharge pipes 1007.

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0032] Please refer to Figures 1 - 5, the present utility model provides a technical solution: a cylinder cover 1011 is provided at the upper end of the barrel 1004. One side of the outer wall of the barrel 1004 below the anti - detachment ring 1003 is connected with a controller 1010. The controller 1010 is electrically connected between the solenoid valve 1009 and the powder flowmeter 1008. One side of the outer wall of one of the vertical plates 2003 is connected with a first motor 2006. The output end of the first motor 2006 is in transmission connection with one of the rotating shafts 2004. Slide grooves 2007 are respectively provided on one side of the inner walls of a pair of U - shaped frames 2001. The slide grooves 2007 are slidably connected with the moving seats 2002. Screws 2008 are respectively rotatably connected inside a pair of U - shaped frames 2001. One end of each of the pair of screws 2008 penetrates through the moving seat 2002 and extends to the outside, and is in threaded connection with the moving seat 2002. One end of each of the pair of screws 2008 penetrates through the U - shaped frame 2001 and extends to the outside, and is respectively sleeved with a synchronous pulley 2009. A synchronous belt is wound between the pair of synchronous pulleys 2009. There is a certain distance between the synchronous belt and the outer side of the hydraulic rod 1002. One side of the outside of one of the U - shaped frames 2001 away from the synchronous pulley 2009 is connected with a second motor 2010. The output end of the second motor 2010 is in transmission connection with one of the screws 2008. By providing the cylinder cover 1011, the sealing of the storage cylinder 1006 is ensured. By providing the controller 1010, the addition amount is input through the controller 1010. The powder flowmeter 1008 monitors the flow rate of the probiotic powder in the discharge pipe 1007. When the addition amount reaches the set value at the beginning, the powder flowmeter 1008 transmits a data signal to the controller 1010, and then the controller 1010 controls the solenoid valve 1009 to close. When the second motor 2010 is started, it is convenient for one of the screws 2008 connected to its output end to rotate, and under the driving action of the synchronous pulley 2009 and the synchronous belt, the other screw 2008 rotates. When the pair of screws 2008 rotate, it is convenient for the moving seat 2002 threadedly connected to the outside of the screw 2008 to drive the vertical plate 2003 and the addition box 2005 to move under the sliding action with the slide groove 2007. When the first motor 2006 is started, it is convenient for one of the rotating shafts 2004 connected to its output end to rotate.

[0033] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0034] Please refer to Figures 1 - 5, the present utility model provides a technical solution: The placing mechanism 300 includes a receiving cylinder 3001. The receiving cylinder 3001 is arranged on one side of the upper end of the base 1001, and a shielding cover 3002 is provided on the upper end surface of the receiving cylinder 3001. An opening is provided on one side of the shielding cover 3002, and a connecting plate 3003 is connected to the outer wall of the shielding cover 3002 away from the opening. A first threaded hole is opened at one end of the connecting plate 3003, and a second threaded hole is opened at the position of the receiving cylinder 3001 near the first threaded hole. A bolt 3004 is threadedly connected between the first threaded hole and the second threaded hole. A U-shaped groove 400 is opened at the upper end of the base 1001 at the position of the receiving cylinder 3001. A magnet block 600 is slidably arranged inside the U-shaped groove 400, and the upper end of the magnet block 600 is connected to the bottom end of the receiving cylinder 3001. An electromagnet 500 is connected inside the base 1001 at the position of the U-shaped groove 400. The electromagnet 500 and the magnet block 600 are mutually adsorbed. By providing the shielding cover 3002 and arranging an opening on one side of the shielding cover 3002, the opening is convenient for the adding box 2005 to pass through the opening and be placed inside the shielding cover 3002 during movement. Moreover, the diameter of the adding box 2005 is smaller than the diameters of the shielding cover 3002 and the receiving cylinder 3001, so as to facilitate the flipping of the adding box 2005. By providing the first threaded hole and the second threaded hole and threadedly connecting a bolt 3004 between the first threaded hole and the second threaded hole, when the bolt 3004 is removed, the disassembly between the shielding cover 3002 and the receiving cylinder 3001 can be realized. By providing the electromagnet 500, when the electromagnet 500 is energized, the electromagnet 500 adsorbs the magnet block 600, so as to facilitate fixing the receiving cylinder 3001 on the base 1001 to ensure the stability of the placement of the receiving cylinder 3001 during the tilting process of the adding box 2005.

[0035] Specifically, the working principle of this precise quantitative addition device for probiotics: During use, the addition amount is input through the controller 1010, and the solenoid valve 1009 is controlled by the controller 1010 to open, so that the probiotic powder inside the storage cylinder 1006 falls into the inside of the addition box 2005 through the powder flowmeter 1008 and the discharge pipe 1007. The powder flowmeter 1008 monitors the flow rate of the probiotic powder in the discharge pipe 1007. When the addition amount reaches the set value at the beginning, the powder flowmeter 1008 transmits a data signal to the controller 1010, and then the controller 1010 controls the solenoid valve 1009 to close and starts the second motor 2010, facilitating the rotation of one of the screws 2008 connected to its output end, and realizing the rotation of the other screw 2008 under the driving action of the synchronous pulley 2009 and the synchronous belt. When a pair of screws 2008 rotate, it is convenient for the moving seat 2002 externally threaded to the screw 2008 to drive the vertical plate 2003 and the addition box 2005 to move under the sliding action with the chute 2007, so that the addition box 2005 is placed inside the shielding cover 3002 through the opening on one side of the shielding cover 3002. When the first motor 2006 is started, the rotation of one of the rotating shafts 2004 connected to its output end is realized, so that the addition box 2005 is flipped inside the collection cylinder 3001, and the probiotic powder is poured into the collection cylinder 3001. After the materials in the collection cylinder 3001 are collected, the power supply to the electromagnet 500 is stopped, and then the collection cylinder 3001 is removed from the base 1001. When the bolt 3004 is removed, the disassembly between the shielding cover 3002 and the collection cylinder 3001 can be realized, facilitating the pouring of the materials in the collection cylinder 3001 into a mixer for further processing and production.

Claims

1. A probiotic precise quantitative addition device, characterized in that, It includes a blanking mechanism (100), an adding mechanism (200) and a placing mechanism (300). The blanking mechanism (100) includes a base (1001). One side of the base (1001) is connected with a hydraulic rod (1002). One side of the output end of the hydraulic rod (1002) is connected with an anti - detachment ring (1003). Inside the anti - detachment ring (1003) is connected with a material cylinder (1004). Four placing grooves (1005) are opened inside the material cylinder (1004). Inside each of the four placing grooves (1005) is provided with a storage cylinder (1006). The bottom ends of the storage cylinders (1006) are all communicated with discharge pipes (1007). The upper ends of the discharge pipes (1007) penetrate through the storage cylinders (1006) and extend to the inside, and are sleeved with powder flow meters (1008). The outside of the discharge pipes (1007) is sleeved with electromagnetic valves (1009), and the bottom ends of the discharge pipes (1007) penetrate through the material cylinder (1004). The adding mechanism (200) includes a pair of U - shaped frames (2001). The pair of U - shaped frames (2001) are respectively arranged on the front and back of the base (1001). On one side of the inner walls of the pair of U - shaped frames (2001), movable seats (2002) are slidably arranged. The upper ends of the pair of movable seats (2002) are both connected with vertical plates (2003). On the opposite sides of the pair of vertical plates (2003), rotating shafts (2004) are rotatably connected. Between the pair of rotating shafts (2004) is connected with an adding box (2005).

2. The precise quantitative addition device for probiotics according to claim 1, wherein The upper end of the material cylinder (1004) is provided with a cylinder cover (1011). On one side of the outer wall of the material cylinder (1004) below the anti - detachment ring (1003) is connected with a controller (1010). The controller (1010) is electrically connected with the electromagnetic valve (1009) and the powder flow meter (1008).

3. The precise quantitative addition device for probiotics according to claim 1, wherein On one side of the outer wall of one of the vertical plates (2003) is connected with a first motor (2006). The output end of the first motor (2006) is in transmission connection with one of the rotating shafts (2004).

4. The probiotic precise quantitative addition device according to claim 3, characterized in that, On one side of the inner walls of the pair of U - shaped frames (2001), sliding grooves (2007) are opened. The sliding grooves (2007) are slidably connected with the movable seats (2002). Inside the pair of U - shaped frames (2001), screw rods (2008) are rotatably connected. One end of each of the pair of screw rods (2008) penetrates through the movable seat (2002) and extends to the outside, and is in threaded connection with the movable seat (2002).

5. A probiotic precise quantitative addition device according to claim 4, characterized in that, One end of each of the pair of screw rods (2008) penetrates through the U - shaped frame (2001) and extends to the outside, and is sleeved with a synchronous pulley (2009). A synchronous belt is wound between the pair of synchronous pulleys (2009). There is a certain distance between the synchronous belt and one side of the outside of the hydraulic rod (1002).

6. The precise quantitative addition device for probiotics according to claim 5, characterized in that, On the outside of one of the U - shaped frames (2001) away from the synchronous pulley (2009) is connected with a second motor (2010). The output end of the second motor (2010) is in transmission connection with one of the screw rods (2008).

7. A probiotic precise quantitative addition device according to claim 1, characterized in that, The placing mechanism (300) includes a receiving cylinder (3001). The receiving cylinder (3001) is arranged at one side of the upper end of the base (1001). And a shielding cover (3002) is provided on the upper end surface of the receiving cylinder (3001). An opening is provided on one side of the shielding cover (3002). And a connecting plate (3003) is connected to the outer wall of the shielding cover (3002) far away from the opening. A first threaded hole is opened at one end of the connecting plate (3003). A second threaded hole is opened at the outer part of the receiving cylinder (3001) near the first threaded hole. A bolt (3004) is threadedly connected between the first threaded hole and the second threaded hole.

8. A probiotic precise quantitative addition device according to claim 7, characterized in that, A U-shaped groove (400) is opened at the upper end of the base (1001) at the position of the receiving cylinder (3001). A magnet block (600) is slidably arranged inside the U-shaped groove (400). The upper end of the magnet block (600) is connected to the bottom end of the receiving cylinder (3001). An electromagnet (500) is connected inside the base (1001) at the position of the U-shaped groove (400). The electromagnet (500) and the magnet block (600) are mutually attracted.