Environment-friendly shaving board glue automatic adding device

Abstract

The environment-friendly shaving board glue automatic adding device comprises a glue storage barrel, a heating sleeve is connected to the lower portion of the outer wall of the glue storage barrel, a discharging pipe is connected to the middle of the lower end of the glue storage barrel, a discharging valve is connected to the lower portion of the outer wall of the discharging pipe, and a conveying assembly is connected to one side of the discharging pipe. Supporting rods are connected to the upper ends of the glue storage barrels in the circumferential direction, connecting rings are connected to the upper ends of the multiple supporting rods, and premixing assemblies are connected to the inner walls of the connecting rings and comprise premixing barrels. Through the design of premixing defoaming, impurity treatment and flow guiding, precise adding, uniform mixing, energy saving and environmental protection of shaving board glue are achieved; and the shaving board production quality and the equipment operation stability are obviously improved.

Description

Technical Field

[0001] The present invention relates to the technical field of particle board processing, and more particularly to an environmentally friendly automatic glue adding device for particle boards. Background Art

[0002] In the production process of particleboard, the addition of glue is an indispensable key link. Glue serves as the bonding medium between the particles. The accuracy and uniformity of its addition directly determine the quality of the finished particleboard. Insufficient glue addition will result in loose bonding between the particles, reducing the strength of the board and making it prone to cracking, loose boards and other problems. Excessive glue addition will not only increase production costs, but may also release more harmful substances during the use of the board, affecting the environmental performance of the product. Therefore, achieving efficient and accurate addition of glue is of great significance to ensuring the quality and efficiency of particleboard production.

[0003] At present, the newly added glue inside the particleboard glue storage cylinder and the original glue in the storage cylinder often have a viscosity difference due to storage time, environmental factors, etc. When the two are mixed, this viscosity difference can easily lead to stratification of the glue, making it difficult to fully and evenly mix. In the subsequent gluing process, the layered glue cannot be evenly coated on the particle surface, resulting in uneven bonding strength of different parts of the particleboard, which reduces the overall mechanical properties and stability of the board. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an environmentally friendly particleboard glue automatic adding device.

[0005] To achieve the above object, the present invention provides the following technical solutions: An environmentally friendly automatic particleboard glue adding device comprises a glue storage cylinder, a heating sleeve is connected to the lower part of the outer wall of the glue storage cylinder, a discharge pipe is connected to the middle part of the lower end of the glue storage cylinder, the lower part of the outer wall of the discharge pipe is connected to the discharge valve, a feeding assembly is connected to one side of the discharge pipe, the upper end of the glue storage cylinder is circumferentially connected to a support rod, a plurality of support rods are connected to the upper ends of the rings, the inner wall of the connecting ring is connected to a premixing assembly, the premixing assembly comprises a premixing cylinder, a connecting motor is connected to the middle part of the upper end of the premixing cylinder, the output end of the connecting motor is connected to a rotating rod, a dispersion disk is connected to the middle part of the outer wall of the rotating rod, a filter plate is connected to the lower end of the rotating rod, and a guide ring is connected to the outer wall of the filter plate.

[0006] Preferably, the feeding assembly includes a discharge pipe, one end of the discharge pipe extends through the inside of the discharge pipe, the outer wall of the discharge pipe is connected to a discharge valve, the lower part of one side of the glue storage cylinder is connected to a support plate, the middle part of the upper end of the support plate is connected to a connecting pump, the input end of the connecting pump is connected to a connecting pipe, one end of the connecting pipe is connected to one end of the discharge pipe, and the output end of the connecting pump is connected to a delivery pipe.

[0007] Preferably, the lower part of the outer wall of the premixing cylinder is connected to the inner wall of the connecting ring, the upper part of the outer wall of the premixing cylinder is connected to an annular tube, one side of the annular tube is connected to one end of the delivery pipe, the lower end of the annular tube is circumferentially connected to a rubber delivery pipe, one end of multiple rubber delivery pipes respectively extend into the interior of the premixing cylinder, one side of the upper end of the premixing cylinder is connected to a feeding pipe, and the outer wall of the feeding pipe is connected to a feeding valve.

[0008] Preferably, a partition plate is connected to the middle of the inner wall of the premixing cylinder, and the partition plate is V-shaped. A guide block is connected to the middle of the upper end of the partition plate. The lower end of the rotating rod passes through the premixing cylinder, the guide block and the partition plate in sequence and extends to the bottom of the partition plate. The lower part of the outer wall of the partition plate is evenly connected to the discharge pipe, and the outer wall of the discharge pipe is connected to a discharge valve.

[0009] Preferably, the outer wall of the guide ring contacts the inner wall of the premixing cylinder, and a connecting rod is connected to the inner wall of the premixing cylinder corresponding to the top of the filter plate. The connecting rod is in an inverted L-shaped structure, and the lower end of the connecting rod is connected to a scraper, and the lower end of the scraper contacts the upper end of the filter plate.

[0010] Preferably, a scraper block is connected to the lower part of one side of the scraper, a feed port is opened above the scraper block on one side of the scraper, buckles are clamped on both sides of the upper end of the scraper, and the lower ends of the two buckles are connected to a collection frame, and one side of the collection frame is in contact with one side of the scraper.

[0011] Preferably, one side of the scraper block is tilted, the lower end of the aggregate frame is meshed, and the buckle is in an inverted U-shaped structure.

[0012] Preferably, a feed pipe is connected to the middle part of the upper end of the glue storage cylinder, the two sides of the lower end of the premixing cylinder are arranged in a V-shaped structure, the lower end of the premixing cylinder is arranged in a tubular shape, and the lower end of the premixing cylinder is inserted into the inside of the feed pipe, and a collecting ring is connected to the upper end of the inner wall of the glue storage cylinder corresponding to the feed pipe, and the cross-sectional shape of the collecting ring is arranged in a V-shaped structure, and a guide rod is connected to the inner wall of the collecting ring, and the shape of the upper end of the guide rod is arranged in an inverted V-shaped structure, and the lower end of the guide rod is connected to a guide plate, and the outer wall of the guide rod and the outer wall of the upper end of the guide plate are both provided with a guide groove.

[0013] Technical effects and advantages of the present invention: 1. The dispersing disc in the pre-mixing assembly rotates at high speed driven by a connected motor, vigorously stirring the new and old glues, effectively improving the stratification problem caused by viscosity differences. At the same time, the centrifugal force generated by the high-speed rotation of the filter plate not only accelerates the filtration and interception of impurities, but also uses the density difference to cause bubbles in the glue to gather and burst toward the center of rotation. Combined with the diversion effect of the guide ring and separator plate, this achieves integrated glue mixing, defoaming, and filtration, significantly improving the uniformity and purity of the glue, and providing a guarantee for the high-quality production of particleboard. 2. When the filter plate filters the glue under the action of centrifugal force, the fixed scraper and scraper block cooperate to automatically scrape the intercepted impurities into the aggregate frame. The mesh design at the bottom of the aggregate frame enables glue recovery, and the detachable buckle facilitates cleaning. This structure prevents impurities from clogging pipes and equipment, reduces maintenance frequency and downtime, ensures long-term stable operation of the device, and improves production efficiency. 3. The combined design of the guide rod, guide plate and guide trough plays a key role in guiding and dispersing the glue entering the glue storage cylinder from the premixing cylinder. The inverted V-shaped structure at the upper end of the guide rod can initially disperse the glue to the surrounding area to prevent the glue from concentrating on a certain part of the glue storage cylinder; the guide plate receives the dispersed glue, and the guide trough on its surface is interconnected with the guide trough on the guide rod, forming a diversion path, guiding the glue to flow slowly and evenly downward, making the glue more evenly distributed in the glue storage cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of a new glue adding device; Figure 2 It is a schematic cross-sectional structural diagram of the entire device; Figure 3 This is a schematic diagram of the installation structure of the aggregate ring; Figure 4 It is a cross-sectional view of the internal structure of the premixing cylinder; Figure 5 Schematic diagram of the three-dimensional structure of the partition plate; Figure 6 Schematic diagram of the cross-sectional structure of the scraper; Figure 7 It is a schematic diagram of the three-dimensional structure of the material guide tray.

[0015] The accompanying drawings are marked as follows: 1. Glue storage cylinder; 2. Heating sleeve; 3. Discharge pipe; 4. Discharge pipe; 5. Support plate; 6. Connecting pump; 7. Connecting pipe; 8. Delivery pipe; 9. Support rod; 10. Connecting ring; 11. Premixing cylinder; 12. Annular pipe; 13. Glue delivery pipe; 14. Feeding pipe; 15. Partition plate; 16. Guide block; 17. Connecting motor; 18. Rotating rod; 19. Dispersion disk; 20. Feeding pipe; 21. Filter plate; 22. Guide ring; 23. Connecting rod; 24. Scraper; 25. Scraper block; 26. Feed port; 27. Buckle; 28. Aggregate frame; 29. ​​Feed pipe; 30. Aggregate ring; 31. Guide rod; 32. Guide disk; 33. Guide trough. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] Refer to the instruction manual Figure 1-Figure 7 As shown, an environmentally friendly particleboard glue automatic adding device according to an embodiment of the present invention includes a glue storage cylinder 1, a liquid level sensor is connected to one side of the inner wall of the glue storage cylinder 1, which can accurately monitor the liquid level of the glue in the glue storage cylinder 1 in real time, a heating sleeve 2 is connected to the lower part of the outer wall of the glue storage cylinder 1, a discharge pipe 3 is connected to the middle part of the lower end of the glue storage cylinder 1, the lower part of the outer wall of the discharge pipe 3 is connected to the discharge valve, and a feeding component is connected to one side of the discharge pipe 3, the upper end of the glue storage cylinder 1 is circumferentially connected to a support rod 9, the upper ends of multiple support rods 9 are connected to a connecting ring 10, and the inner wall of the connecting ring 10 is connected to a premixing component; The glue inventory is monitored in real time through the liquid level sensor. When the set threshold is reached, the addition process can be automatically triggered. The heating sleeve 2 can adjust the temperature according to the characteristics of the glue to ensure that the glue is in the best flow state, providing a basis for subsequent uniform mixing and addition.

[0018] The feeding assembly includes a discharge pipe 4, one end of which extends through the discharge pipe 3 and is connected to the outer wall of the discharge pipe 4. A discharge valve is connected to the lower part of one side of the glue storage cylinder 1. A support plate 5 is connected to the middle part of the upper end of the support plate 5. The input end of the connection pump 6 is connected to a connection pipe 7. One end of the connection pipe 7 is connected to one end of the discharge pipe 4. The output end of the connection pump 6 is connected to a delivery pipe 8. The feeding assembly accurately controls the start and stop of glue delivery through the discharge valve, and is connected to the pump 6 to provide stable power to ensure that the glue can be delivered from the glue storage cylinder 1 to the premixing cylinder 11 according to the set flow rate.

[0019] The premixing assembly includes a premixing cylinder 11, a connecting motor 17 is connected to the middle of the upper end of the premixing cylinder 11, a rotating rod 18 is connected to the output end of the connecting motor 17, a dispersing disk 19 is connected to the middle of the outer wall of the rotating rod 18, the lower part of the outer wall of the premixing cylinder 11 is connected to the inner wall of the connecting ring 10, the upper part of the outer wall of the premixing cylinder 11 is connected to an annular tube 12, one side of the annular tube 12 is connected to one end of the delivery pipe 8, the lower end of the annular tube 12 is circumferentially connected to a rubber delivery pipe 13, and one end of the multiple rubber delivery pipes 13 respectively extends through the premixing cylinder 11 A feeding pipe 14 is connected to one side of the upper end of the premixing cylinder 11, and a feeding valve is connected to the outer wall of the feeding pipe 14. A partition plate 15 is connected to the middle of the inner wall of the premixing cylinder 11. The partition plate 15 is V-shaped. A guide block 16 is connected to the middle of the upper end of the partition plate 15. The lower end of the rotating rod 18 passes through the premixing cylinder 11, the guide block 16 and the partition plate 15 in sequence and extends to the bottom of the partition plate 15. The lower part of the outer wall of the partition plate 15 is evenly connected to the discharge pipe 20, and the outer wall of the discharge pipe 20 is connected to the discharge valve; The dispersion disk 19 rotates at high speed when driven by the connecting motor 17, vigorously stirring the new and old glue, and cooperating with the annular tube 12 and the glue delivery tube 13 to evenly distribute the glue, effectively solving the stratification problem caused by viscosity differences of the glue. The V-shaped partition plate 15 and the guide block 16 further disperse the glue, and the flow is controlled by the discharge pipe 20, so that the mixed glue enters the next link evenly and stably, ensuring the mixing quality of the glue in the particleboard production.

[0020] The lower end of the rotating rod 18 is connected to the filter plate 21, and the outer wall of the filter plate 21 is connected to the guide ring 22. The outer wall of the guide ring 22 contacts the inner wall of the premixing cylinder 11. The inner wall of the premixing cylinder 11 is connected to a connecting rod 23 corresponding to the upper part of the filter plate 21. The shape of the connecting rod 23 is an inverted L-shaped structure. The lower end of the connecting rod 23 is connected to a scraper 24. The lower end of the scraper 24 contacts the upper end of the filter plate 21. The lower part of one side of the scraper 24 is connected to a scraper block 25. A feed port 26 is provided on one side of the scraper 24 corresponding to the upper part of the scraper block 25. Buckles 27 are clamped on both sides of the upper end of the scraper 24. The lower ends of the two buckles 27 are connected to an aggregate frame 28. One side of the aggregate frame 28 contacts one side of the scraper 24. The shape of one side of the scraper block 25 is inclined. The lower end of the aggregate frame 28 is meshed, and the shape of the buckle 27 is an inverted U-shaped structure. Driven by the rotating rod 18, the filter plate 21 rotates at high speed, and uses the centrifugal force generated to efficiently filter the glue. Since the bubbles in the glue have a much smaller density than the glue, they gather and burst toward the center of rotation under the action of centrifugal force, thereby achieving the effect of defoaming. At the same time, the filter plate 21 filters the glue and intercepts impurities when rotating. The guide ring 22 guides the glue to flow smoothly. The fixed scraper 24 cooperates with the scraper block 25 to scrape the impurities on the filter plate 21 into the collection frame 28. The mesh design at the lower end of the collection frame 28 realizes glue recovery. The buckle 27 is easy to disassemble and clean, realizing automatic cleaning of impurities and glue recovery, preventing impurities from clogging and affecting equipment operation, and improving the reliability and environmental protection of the device.

[0021] A feed pipe 29 is connected to the middle part of the upper end of the glue storage cylinder 1, and both sides of the lower end of the premixing cylinder 11 are arranged in a V-shaped structure. The lower end of the premixing cylinder 11 is arranged in a tubular shape, and the lower end of the premixing cylinder 11 is inserted into the inside of the feed pipe 29. A gathering ring 30 is connected to the upper end of the inner wall of the glue storage cylinder 1 corresponding to the feed pipe 29. The cross-sectional shape of the gathering ring 30 is arranged in a V-shaped structure. A guide rod 31 is connected to the inner wall of the gathering ring 30. The upper end of the guide rod 31 is arranged in an inverted V-shaped structure. The lower end of the guide rod 31 is connected to a guide plate 32. The outer wall of the guide rod 31 and the outer wall of the upper end of the guide plate 32 are both provided with a guide groove 33; The premixed glue enters the glue storage barrel 1 through the feed pipe 29. The collecting ring 30, the guide rod 31, the guide plate 32 and the guide trough 33 cooperate with each other to evenly disperse the glue into the glue storage barrel 1, avoiding local accumulation of glue, ensuring the uniformity of the glue in the glue storage barrel 1, providing a stable and consistent glue supply for the subsequent gluing of the particleboard, and improving the stability of the quality of the particleboard product.

[0022] Working Principle: When using this environmentally friendly automatic particleboard glue dosing device, a liquid level sensor inside glue storage cylinder 1 monitors the glue level in real time. When the liquid level sensor detects that the glue level in glue storage cylinder 1 is below a preset threshold, indicating insufficient glue, the control system automatically issues a command to open the discharge valve on discharge pipe 4 and activate connecting pump 6. Driven by connecting pump 6, the glue in glue storage cylinder 1 begins to flow, passing through discharge pipe 3, discharge pipe 4, connecting pipe 7, and into delivery pipe 8. Then, through annular pipe 12 and glue delivery pipe 13, it is delivered to premixing cylinder 11.

[0023] At the same time, the feed valve on the feeding pipe 14 will also open automatically, and the new glue will enter the premixing barrel 11 through the feeding pipe 14. The connected motor 17 will start synchronously, and its output end will drive the rotating rod 18 to rotate rapidly. The dispersion disk 19 installed on the rotating rod 18 will rotate at high speed, and the newly added glue in the premixing barrel 11 will be fully stirred and mixed with the original glue. This process can effectively improve the stratification problem caused by the viscosity difference between the new and old glues, and ensure that the glue is evenly mixed.

[0024] The mixed glue continues to flow downward. When passing through the partition plate 15, the V-shaped partition plate 15 plays a role in dispersing the glue to the surroundings. Then the glue falls through multiple evenly distributed discharge pipes 20. During the falling process, the glue will pass through the rotating filter plate 21. The filter plate 21 generates centrifugal force when rotating at high speed, which can not only effectively filter and intercept impurities in the glue, but also eliminate bubbles that may be generated after stirring, thereby improving the quality of the glue. The filtered glue flows downward along the inner wall of the premixing barrel 11 under the guidance of the guide ring 22, and finally enters the feed pipe 29 in the glue storage barrel 1 from the lower end of the premixing barrel 11.

[0025] During the continuous rotation of the filter plate 21, the lower end of the fixed scraper 24 always keeps in contact with the filter plate 21, and will scrape up the impurities intercepted on the filter plate 21. The scraped impurities are guided by the inclined scraper block 25 and enter the aggregate frame 28 through the feed port 26 for collection. Since the lower end of the aggregate frame 28 adopts a mesh design, the intercepted impurities will remain in the aggregate frame 28, and a small amount of glue attached to the impurities will drip back into the premixing barrel 11 through the mesh structure, realizing the recycling of the glue. When there are more impurities collected in the aggregate frame 28, the operator can easily disassemble the aggregate frame 28 through the buckle 27 for cleaning.

[0026] The glue entering the feed pipe 29 is evenly dispersed into the glue storage barrel 1 along the guide groove 33 under the joint guidance of the collecting ring 30, the guide rod 31 and the guide plate 32, thereby achieving uniform mixing and precise addition of the glue. In addition, the heating sleeve 2 can heat the glue in the glue storage barrel 1 according to the actual temperature of the glue, keep the glue temperature stable in an appropriate range, further improve the fluidity and mixing effect of the glue, and provide a guarantee for good bonding between the glue and the wood chips in the subsequent particleboard production.

[0027] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change. Secondly: The drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention. Other structures may refer to conventional designs. The same embodiment and different embodiments of the present invention may be combined with each other without conflict. Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An environmentally friendly particleboard glue automatic adding device, comprising a glue storage cylinder (1), characterized in that: The lower part of the outer wall of the rubber storage cylinder (1) is connected to a heating sleeve (2), the middle part of the lower end of the rubber storage cylinder (1) is connected to a discharge pipe (3), the lower part of the outer wall of the discharge pipe (3) is connected to a discharge valve, one side of the discharge pipe (3) is connected to a feeding assembly, the upper end of the rubber storage cylinder (1) is circumferentially connected to a support rod (9), the upper ends of multiple support rods (9) are connected to a connecting ring (10), the inner wall of the connecting ring (10) is connected to a premixing assembly, the premixing assembly includes a premixing cylinder (11), the middle part of the upper end of the premixing cylinder (11) is connected to a connecting motor (17), the output end of the connecting motor (17) is connected to a rotating rod (18), the middle part of the outer wall of the rotating rod (18) is connected to a dispersion disk (19), the lower end of the rotating rod (18) is connected to a filter plate (21), and the outer wall of the filter plate (21) is connected to a guide ring (22).

2. The environmentally friendly automatic glue adding device for particleboard according to claim 1, characterized in that: The feeding assembly includes a discharge pipe (4), one end of the discharge pipe (4) extends through the inside of the discharge pipe (3), the outer wall of the discharge pipe (4) is connected to a discharge valve, the lower part of one side of the glue storage cylinder (1) is connected to a support plate (5), the middle part of the upper end of the support plate (5) is connected to a connecting pump (6), the input end of the connecting pump (6) is connected to a connecting pipe (7), one end of the connecting pipe (7) is connected to one end of the discharge pipe (4), and the output end of the connecting pump (6) is connected to a conveying pipe (8).

3. The environmentally friendly automatic glue adding device for particleboard according to claim 1, characterized in that: The lower portion of the outer wall of the premixing cylinder (11) is connected to the inner wall of the connecting ring (10), and the upper portion of the outer wall of the premixing cylinder (11) is connected to an annular tube (12), one side of the annular tube (12) is connected to one end of the delivery pipe (8), and the lower end of the annular tube (12) is circumferentially connected to a rubber delivery pipe (13), and one end of a plurality of the rubber delivery pipes (13) respectively extends through the interior of the premixing cylinder (11), and one side of the upper end of the premixing cylinder (11) is connected to a feeding pipe (14), and the outer wall of the feeding pipe (14) is connected to a feeding valve.

4. The environmentally friendly automatic glue adding device for particleboard according to claim 1, characterized in that: A partition plate (15) is connected to the middle of the inner wall of the premixing cylinder (11), and the partition plate (15) is arranged in a V-shaped structure. A guide block (16) is connected to the middle of the upper end of the partition plate (15). The lower end of the rotating rod (18) passes through the premixing cylinder (11), the guide block (16) and the partition plate (15) in sequence and extends to the bottom of the partition plate (15). The lower part of the outer wall of the partition plate (15) is evenly connected to the discharge pipe (20), and the outer wall of the discharge pipe (20) is connected to a discharge valve.

5. The environmentally friendly automatic glue adding device for particleboard according to claim 1, characterized in that: The outer wall of the guide ring (22) contacts the inner wall of the premixing cylinder (11), and a connecting rod (23) is connected to the inner wall of the premixing cylinder (11) corresponding to the upper part of the filter plate (21). The connecting rod (23) is arranged in an inverted L-shaped structure. The lower end of the connecting rod (23) is connected to a scraper (24), and the lower end of the scraper (24) contacts the upper end of the filter plate (21).

6. The environmentally friendly automatic glue adding device for particleboard according to claim 5, characterized in that: A scraping block (25) is connected to the lower part of one side of the scraper (24), and a feeding port (26) is provided on one side of the scraper (24) corresponding to the upper part of the scraper block (25). Buckles (27) are clamped on both sides of the upper end of the scraper (24), and the lower ends of the two buckles (27) are connected to a material collection frame (28), and one side of the material collection frame (28) is in contact with one side of the scraper (24).

7. The environmentally friendly automatic glue adding device for particleboard according to claim 6, characterized in that: One side of the scraper (25) is arranged in an inclined shape, the lower end of the aggregate frame (28) is arranged in a mesh shape, and the buckle (27) is arranged in an inverted U-shaped structure.

8. The environmentally friendly automatic glue adding device for particleboard according to claim 1, characterized in that: The middle part of the upper end of the rubber storage cylinder (1) is connected to a feed pipe (29), the two sides of the lower end of the premixing cylinder (11) are arranged in a V-shaped structure, the lower end of the premixing cylinder (11) is arranged in a tubular shape, and the lower end of the premixing cylinder (11) is inserted into the inside of the feed pipe (29), and the upper end of the inner wall of the rubber storage cylinder (1) is connected to a collection ring (30) corresponding to the feed pipe (29), the cross-sectional shape of the collection ring (30) is arranged in a V-shaped structure, the inner wall of the collection ring (30) is connected to a guide rod (31), the upper end of the guide rod (31) is arranged in an inverted V-shaped structure, the lower end of the guide rod (31) is connected to a guide plate (32), and the outer wall of the guide rod (31) and the outer wall of the upper end of the guide plate (32) are both provided with a guide groove (33).

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