Anti-blocking auxiliary dry material conveying device and gypsum board self-adjusting batching system

Abstract

The invention belongs to the technical field of gypsum board processing, and discloses an anti-blocking type auxiliary dry material conveying device which comprises a circular pipe main body, a side wall communicating material storage bin, a spring-shaped conveying rod assembled in the circular pipe main body and capable of rotating, a mounting ring, an outer wall arranged at the outlet end of the circular pipe main body in a sleeving manner, and a material storage bin arranged on the side wall of the circular pipe main body, a plurality of guide notches are formed in the circumferential side wall of the mounting ring, the expanding pipe section is mounted on the side wall of the mounting ring, the expanding pipe section is provided with a plurality of expanding petal bodies and elastic connecting pieces connected between the adjacent expanding petal bodies, a sliding cavity is formed in the inner side of each expanding petal body, and a first opening is formed in the position, facing the elastic connecting pieces on the two sides, of each sliding cavity; according to the auxiliary dry material conveying device, the expanding petal bodies of the expanding pipe section slide outwards or inwards along the guide notches to increase or reduce the inner diameter, continuous discharging of auxiliary dry materials with different flows can be completed through one auxiliary dry material conveying device, and the production efficiency is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of gypsum board processing technology, specifically to an anti-clogging auxiliary dry material conveying device and a gypsum board self-regulating batching system. Background Technology

[0002] In the batching stage of gypsum slurry, each raw material is transported to the mixer through corresponding metering and conveying equipment. Different metering and conveying equipment dynamically adjusts the conveying speed of each raw material according to the raw material production process ratio, thereby achieving the continuity of the production process and the accuracy of the ratio.

[0003] Among them, the metering and conveying equipment for auxiliary dry materials in the raw materials usually adopts a round tube spring reamer. This equipment uses a spring-shaped conveying rod as the core feeding component. The auxiliary dry material is pushed forward by the rotation of the spring-shaped conveying rod and its cooperation with the inner wall of the round tube. When the proportion of auxiliary dry material in the production process ratio is large, the round tube spring reamer with a larger diameter is replaced to avoid the accumulation and blockage of auxiliary dry material at the outlet of the round tube. When the proportion of auxiliary dry material in the production process ratio is small, the round tube spring reamer with a smaller diameter is replaced to ensure that the auxiliary dry material is continuously fed at a smaller flow rate.

[0004] In existing technologies, frequent replacement of round tube spring reamers is cumbersome and reduces production efficiency. Summary of the Invention

[0005] To address this issue, the present invention provides an anti-clogging auxiliary material conveying device and a gypsum board self-adjusting batching system to solve the technical problems of frequent replacement of round tube spring reamers, cumbersome operation process, and reduced production efficiency in the prior art.

[0006] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution:

[0007] A clog-resistant auxiliary material conveying device, comprising:

[0008] The cylindrical tube body has a side wall connected to a storage compartment, and the auxiliary dry material in the storage compartment is fed into the cylindrical tube body.

[0009] A spring-shaped conveying rod is assembled inside the circular tube body along the length of the circular tube body. The spring-shaped conveying rod is rotatable to push the auxiliary dry material fed into the circular tube body toward the outlet of the circular tube body.

[0010] An installation ring is fitted onto the outer wall of the outlet end of the circular tube body, and the circumferential sidewall of the installation ring is provided with multiple guide notches.

[0011] An enlarged pipe section is installed on the side wall of the mounting ring away from the main body of the circular pipe. The enlarged pipe section has multiple enlarged valves and elastic connecting pieces connecting two adjacent enlarged valves. The enlarged valves are arranged in a one-to-one correspondence with the guide notches. Each enlarged valve has a sliding cavity on its inner side. The sliding cavity has a first opening in the direction of the adjacent elastic connecting pieces on both sides. The elastic connecting pieces are at least partially slidably embedded in the sliding cavity through the first opening.

[0012] The expanding valve body can slide outward along the guide notch to increase the inner diameter of the expanding tube section, and can slide inward along the guide notch to decrease the inner diameter of the expanding tube section. During the sliding of the expanding valve body, the portion of the elastic connecting piece embedded in the sliding cavity extends or retracts into the sliding cavity with the sliding action to fill the gap between adjacent expanding valve bodies.

[0013] Furthermore, the sliding cavity is provided with a second opening on one side facing the mounting ring, and the elastic connecting piece is attached to the side wall of the mounting ring through the second opening on the side near the mounting ring.

[0014] Furthermore, the side of the elastic connecting piece away from the mounting ring is attached to the sidewall of the first opening;

[0015] The spring-shaped conveying rod extends into the interior of the expanded diameter pipe section.

[0016] Furthermore, the bottom of the enlarged pipe section is configured as an enlarged valve, and the two sides of the enlarged valve extend to cover at least half of the height of the enlarged pipe section.

[0017] Furthermore, the expanding valve body slides outward or inward along the guide notch under the drive of the drive assembly; the drive assembly includes: a bearing disposed on the outer wall of the circular tube body near its outlet end, a circular gear sleeved on the outer wall of the bearing, a threaded sleeve fixedly connected to the side of the circular gear near the mounting ring, and a threaded slip ring threadedly installed on the threaded sleeve.

[0018] Multiple linkage rods are hinged to the side of the threaded slip ring near the mounting ring. Each linkage rod corresponds to a guide notch. Each guide notch has a groove on its opposite sidewall. The end of the linkage rod away from the threaded slip ring is hinged to the expanded diameter flap body via a pin. Both ends of the pin are slidably disposed in the groove.

[0019] The circular gear can rotate to drive the threaded sleeve to rotate, so that the threaded slip ring moves along the length of the threaded sleeve;

[0020] When the threaded slip ring moves toward the expanding valve body, the linkage rod drives the expanding valve body to slide outward along the groove via the pin. When the threaded slip ring moves away from the expanding valve body, the linkage rod drives the expanding valve body to slide inward along the groove via the pin.

[0021] Furthermore, both ends of the pin are fitted with balls that can roll, and the pin is slidably disposed in the groove via the balls.

[0022] Furthermore, the circular gear is driven to rotate by a power drive device;

[0023] The power drive device includes a first drive motor, and a drive gear is installed on the drive end of the first drive motor, the drive gear meshing with the ring gear;

[0024] The first drive motor drives the drive gear to rotate, and the drive gear drives the ring gear to rotate.

[0025] Furthermore, a fixed mounting base is installed on the outer wall of the cylindrical body, and a connecting plate is installed at the bottom of the first drive motor. The connecting plate is connected to the fixed mounting base by bolts and nuts.

[0026] Furthermore, a hopper is provided at the bottom of the storage compartment, and the storage compartment is connected to the main body of the circular tube through the hopper;

[0027] The hopper is equipped with a grinding roller, the surface of which is evenly distributed with protrusions, and an arc-shaped screen is provided below the grinding roller inside the hopper.

[0028] The grinding roller can rotate to grind the auxiliary dry material between the grinding roller and the arc-shaped screen. The ground auxiliary dry material is fed into the cylindrical tube body through the arc-shaped screen.

[0029] A second drive motor is provided on the outer wall of the feeding hopper, and the drive shaft of the second drive motor passes through the inner wall of the feeding hopper and is connected to the grinding roller.

[0030] A third drive motor is installed on the outer wall of the circular tube body away from its outlet end, and the drive end of the third drive motor is connected to the spring-shaped conveying rod.

[0031] A self-regulating gypsum board batching system further includes:

[0032] The first metering pump is used to meter and deliver the main water to the mixer.

[0033] The second metering pump is used to deliver the wet material into the mixer;

[0034] The auxiliary dry material conveying device is used to convey the auxiliary dry material into the mixer;

[0035] A metering belt scale is used to transport gypsum powder into the mixer;

[0036] The controller is connected to the first metering pump, the second metering pump, the auxiliary dry material conveying device, and the metering belt scale. The controller dynamically adjusts the conveying frequency of the first metering pump, the second metering pump, the auxiliary dry material conveying device, and the metering belt scale according to the production raw material ratio.

[0037] Compared with the prior art, the present invention has the following advantages:

[0038] This invention incorporates an expanded diameter pipe section. The expanded diameter valves of the expanded diameter pipe section slide outward or inward along the guide notch to increase or decrease the inner diameter. When the conveying speed increases and the auxiliary dry material flow rate increases, the outlet flow space is expanded to minimize the accumulation of auxiliary dry material due to narrow flow channels. When the conveying speed increases and the auxiliary dry material flow rate decreases, the outlet flow space is reduced to ensure continuous feeding of auxiliary dry material. The elastic connecting piece between adjacent expanded diameter valves can extend and retract with the sliding of the expanded diameter valves, always filling the gap between adjacent expanded diameter valves, ensuring no material leakage around the circumference of the expanded diameter pipe section. A single auxiliary dry material conveying device can complete the continuous feeding of auxiliary dry material at different flow rates, ensuring production efficiency. Attached Figure Description

[0039] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the overall structure of an anti-clogging auxiliary material conveying device provided in an embodiment of the present invention;

[0041] Figure 2 This is a schematic diagram of the overall structure of the expanded diameter pipe section and the drive assembly in an embodiment of the present invention.

[0042] Figure 3 for Figure 1 A magnified structural diagram of A in the middle;

[0043] Figure 4 This is a schematic diagram of the internal structure of the expanded diameter pipe section in an embodiment of the present invention;

[0044] Figure 5 This is a schematic diagram of the hinge joint of the linkage rod and the arc-shaped linkage plate in an embodiment of the present invention;

[0045] Figure 6 This is a schematic diagram of the internal structure of the hopper in an embodiment of the present invention;

[0046] Figure 7 This is a schematic diagram of the overall structure of the arc-shaped screen in an embodiment of the present invention.

[0047] The labels in the diagram represent the following:

[0048] 1. Circular tube body; 2. Spring-shaped conveying rod; 3. Mounting ring; 4. Guide notch; 5. Expanded diameter pipe section; 6. Drive assembly; 7. Slide groove; 8. Pin shaft; 9. Ball bearing; 10. Power drive device; 11. Fixed mounting base; 12. Connecting plate; 13. Bolt; 14. Nut; 15. Feed hopper; 16. Grinding roller; 17. Protrusion; 18. Arc-shaped screen; 19. Second drive motor; 20. Third drive motor; 21. First limiting block; 22. Second limiting block; 23. Raised strip; 24. Groove; 25. Arc-shaped linkage plate; 26. Sealing cap; 27. Handle;

[0049] 501. Expanding valve body; 502. Elastic connecting piece; 503. Slide cavity;

[0050] 601. Bearing; 602. Circular gear; 603. Threaded sleeve; 604. Threaded slip ring; 605. Linkage rod;

[0051] 1001, First drive motor; 1002, Drive gear. Detailed Implementation

[0052] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0053] like Figure 1 , Figure 2 As shown, the present invention provides an anti-clogging auxiliary material conveying device, comprising:

[0054] The circular tube body 1 has a side wall connected to a storage compartment, and the auxiliary dry material in the storage compartment is fed into the circular tube body 1.

[0055] A spring-shaped conveying rod 2 is assembled inside the circular tube body 1 along the length of the circular tube body 1. The spring-shaped conveying rod 2 can rotate to push the auxiliary dry material fed into the circular tube body 1 toward the outlet of the circular tube body 1.

[0056] The mounting ring 3 is fitted onto the outer wall of the outlet end of the circular tube body 1, and multiple guide notches 4 are provided on the circumferential side wall of the mounting ring 3.

[0057] The enlarged diameter pipe section 5 is installed on the side wall of the mounting ring 3 away from the main body of the circular pipe 1. The enlarged diameter pipe section 5 has multiple enlarged diameter valves 501 and elastic connecting pieces 502 connecting two adjacent enlarged diameter valves 501. The enlarged diameter valves 501 are correspondingly arranged with the guide notches 4. Each enlarged diameter valve 501 has a sliding cavity 503 on its inner side. The sliding cavity 503 has a first opening in the direction of the adjacent elastic connecting pieces 502 on both sides. The elastic connecting pieces 502 are at least partially slidably embedded in the sliding cavity 503 through the first opening.

[0058] The expanding valve body 501 can slide outward along the guide notch 4 to increase the inner diameter of the expanding tube section 5, and can slide inward along the guide notch 4 to decrease the inner diameter of the expanding tube section 5. During the sliding of the expanding valve body 501, the portion of the elastic connecting piece 502 embedded in the sliding cavity 503 extends or retracts into the sliding cavity 503 with the sliding action to fill the gap between adjacent expanding valve bodies 501.

[0059] This invention features an expanded diameter pipe section 5. The expanded diameter valve 501 of the expanded diameter pipe section 5 slides outward or inward along the guide notch 4 to increase or decrease the inner diameter. When the conveying speed increases and the auxiliary dry material flow rate increases, the flow space at the outlet is expanded to avoid the accumulation of auxiliary dry material due to the narrow flow channel. When the conveying speed increases and the auxiliary dry material flow rate decreases, the flow space at the outlet is reduced to ensure continuous feeding of auxiliary dry material. The elastic connecting piece 502 between adjacent expanded diameter valves 501 can extend and retract with the sliding of the expanded diameter valves 501, always filling the gap between adjacent expanded diameter valves 501, so that the expanded diameter pipe section 5 does not leak material in the circumference. The continuous feeding of auxiliary dry material with different flow rates can be completed through a single auxiliary dry material conveying device, ensuring production efficiency.

[0060] Furthermore, the expansion and contraction adjustment of the expansion pipe section 5 can adapt to different conveying speed requirements. No matter how the production rhythm is adjusted, the expansion pipe section 5 can adjust the flow space accordingly to ensure that the auxiliary dry material is fed stably at the speed set by the metering and conveying equipment.

[0061] This embodiment provides an anti-clogging auxiliary material conveying device, mainly addressing the outlet adjustment technology where the outlet of the metering conveying equipment cannot be adaptively adjusted when materials are discharged through metering conveying equipment (such as round tube spring reamers, screw conveyors, etc.).

[0062] Specifically, the expansion valve body 501 and the elastic connecting piece 502 are combined to form a circumferentially sealed tubular structure. The elastic connecting piece 502 is slidably disposed in the sliding cavity 503 between two adjacent expansion valve bodies 501. When the two expansion valve bodies 501 slide outward, the two expansion valve bodies 501 and the elastic connecting piece 502 between them slide relative to each other. The part of the elastic connecting piece 502 located in the two expansion valve bodies 501 slides outward to fill the increased gap. Conversely, when the two expansion valve bodies 501 slide inward, the two expansion valve bodies 501 and the elastic connecting piece 502 between them slide relative to each other. The elastic connecting piece 502 retracts into the sliding cavity 503.

[0063] The elastic connecting piece 502 is made of existing elastic metal material, and its elastic properties allow the elastic connecting piece 502 to undergo adaptive deformation following the sliding direction of the expanded diameter valve body 501.

[0064] like Figure 4 As shown, in order to prevent the elastic connecting piece 502 connected between the two expanding valve bodies 501 from falling out of the sliding cavity 503 when the two expanding valve bodies 501 slide outward, at least two first limiting blocks 21 are provided on the inner wall of the sliding cavity 503 near the first opening. The two first limiting blocks 21 are distributed at both ends of the first opening. At least two second limiting blocks 22 are provided on the side of the elastic connecting piece 502 near the first limiting blocks 21. The first limiting blocks 21 and the second limiting blocks 22 are provided one-to-one. When the two expanding valve bodies 501 slide outward to the farthest position, the two first sliders can engage with the two second sliders to prevent the second sliders from sliding out of the sliding cavity 503, thereby preventing the elastic connecting piece 502 from falling out of the sliding cavity 503.

[0065] The maximum inner diameter of the expanded pipe section 5 is set so that the expanded valve body 501 slides outward until the first slider engages with the second slider.

[0066] The first opening faces the elastic connecting piece 502. The elastic connecting piece 502 extends into the sliding cavity 503 through the first opening. Due to the restriction of the first opening being close to the side wall of the mounting ring 3, the elastic connecting piece 502 cannot fit against the mounting ring 3. When the auxiliary dry material enters the expansion pipe section 5, it will leak from the gap between the elastic connecting piece 502 and the mounting ring 3, resulting in the loss of auxiliary dry material and inaccurate proportioning. In order to prevent the auxiliary dry material from leaking from the gap between the elastic connecting piece 502 and the mounting ring 3, the sliding cavity 503 is also provided with a second opening on the side facing the mounting ring 3. The side of the elastic connecting piece 502 close to the mounting ring 3 fits against the side wall of the mounting ring 3 through the second opening.

[0067] The elastic connecting piece 502 is attached to the side wall of the mounting ring 3 through the second opening on the side of the mounting ring 3, "eliminating" the axial gap between the elastic connecting piece 502 and the mounting ring 3, and preventing the auxiliary material from leaking out of the gap.

[0068] One side of the elastic connecting piece 502 is attached to the side wall of the mounting ring 3. In order to prevent the auxiliary material from leaking between the two expansion valves 501, the side of the elastic connecting piece 502 away from the mounting ring 3 is attached to the side wall of the first opening, so that the length of the elastic connecting piece 502 is as equal as possible to the length of the expansion valve 501.

[0069] like Figure 1 As shown, if the spring-shaped conveying rod 2 is only located inside the circular tube body 1, the auxiliary dry material can only be pushed to the outlet of the circular tube body 1. The auxiliary dry material in the expanded diameter pipe section 5 can only be discharged under the pressure of the subsequently conveyed auxiliary dry material, which may cause the auxiliary dry material in the expanded diameter pipe section 5 to be blocked. In order to enable the auxiliary dry material in the expanded diameter pipe section 5 to be discharged actively, the spring-shaped conveying rod 2 extends into the interior of the expanded diameter pipe section 5.

[0070] The rotating pushing action of the spring-shaped conveying rod 2 covers the main body of the circular pipe 1 and the expanded diameter pipe section 5, realizing the entire conveying path, thereby minimizing the accumulation of auxiliary dry materials at the junction of the two components due to loss of pushing force.

[0071] like Figure 1 , Figure 4 As shown, the auxiliary dry material is conveyed into the expansion pipe section 5. The auxiliary dry material covers the bottom of the expansion pipe section 5 under the action of gravity. If the bottom of the expansion pipe section 5 includes two expansion valves 501 and an elastic connecting piece 502 connected between the two expansion valves 501, the auxiliary dry material will be brought into the sliding cavity 503 during the process of the elastic connecting piece 502 retracting and sliding out, which may cause blockage in the sliding cavity 503. Therefore, the bottom of the expansion pipe section 5 is configured as an expansion valve 501, and the two sides of the expansion valve 501 extend to cover at least half of the height of the expansion pipe section 5.

[0072] By reducing the number of elastic connecting pieces 502 at the bottom of the expanded pipe section 5, the blockage rate can be minimized.

[0073] like Figure 2 As shown, the expanding valve body 501 slides outward or inward along the guide notch 4 under the drive of the drive assembly 6;

[0074] Drive assembly 6 includes: a bearing 601 disposed on the outer wall of the circular tube body 1 near its outlet end; a circular gear 602 is sleeved on the outer wall of the bearing 601; a threaded sleeve 603 is fixedly connected to the side of the circular gear 602 near the mounting ring 3; and a threaded slip ring 604 is threadedly installed on the threaded sleeve 603.

[0075] Multiple linkage rods 605 are hinged to the side of the threaded slip ring 604 near the mounting ring 3. The linkage rods 605 are set one-to-one with the guide notch 4. The sidewalls opposite to the guide notch 4 are provided with sliding grooves 7. The end of the linkage rod 605 away from the threaded slip ring 604 is hinged to the expanded diameter flap body 501 through the pin 8. The two ends of the pin 8 are slidably set in the sliding groove 7.

[0076] The circular gear 602 can rotate to drive the threaded sleeve 603 to rotate, so that the threaded slip ring 604 moves along the length of the threaded sleeve 603;

[0077] When the threaded slip ring 604 moves toward the expanding valve body 501, the linkage rod 605 drives the expanding valve body 501 to slide outward along the slide groove 7 through the pin 8. When the threaded slip ring 604 moves away from the expanding valve body 501, the linkage rod 605 drives the expanding valve body 501 to slide inward along the slide groove 7 through the pin 8.

[0078] The threaded slip ring 604 is fixedly connected to the mounting disc via the linkage rod 605. Therefore, the threaded slip ring 604 can move back and forth when the threaded sleeve 603 rotates. The ring gear 602 and the threaded sleeve 603 are connected to the cylindrical tube body 1 via the bearing 601. The ring gear 602, the threaded sleeve 603 and the cylindrical tube body 1 do not contact each other. The rotation of the ring gear 602 and the threaded sleeve 603 depends entirely on the relative rotation of the inner and outer rings of the bearing 601, which makes the ring gear 602 and the threaded sleeve 603 easier to drive.

[0079] The linkage rods 605 are set one-to-one with the guide notches 4, and all the linkage rods 605 are hinged to the same threaded slip ring 604. When the threaded slip ring 604 moves, it can drive all the linkage rods 605 to move synchronously, thereby driving each expansion valve 501 to slide outward and inward synchronously along the slide groove 7, ensuring that the inner diameter of the expansion pipe section 5 changes uniformly (always maintaining a circular cross section), and avoiding material flow deviation caused by the lag in the movement of individual expansion valves 501 as much as possible.

[0080] By controlling the forward and reverse rotation angles of the ring gear 602, the travel of the threaded slip ring 604 can be adjusted more precisely, thereby controlling the sliding distance of the expansion valve body 501, realizing stepless adjustment of the inner diameter of the expansion pipe section 5, and adapting to the working conditions of different conveying speeds and different material flow rates.

[0081] The linkage rod 605 is hinged to the expansion valve body 501. In order to increase the connection area between the linkage rod 605 and the expansion valve body 501, an arc-shaped linkage plate 25 is installed on the outer wall of the end of each expansion valve body 501 near the mounting ring 3. The linkage rod 605 is hinged to the arc-shaped linkage plate 25, and the expansion valve body 501 is moved along the guide notch 4 through the arc-shaped linkage plate 25.

[0082] like Figure 5 As shown, the linkage rod 605 is slidably embedded in the groove 7 via the pin 8. When the threaded sleeve 603 rotates, the threaded slip ring 604 moves back and forth, which will exert a lateral force on the groove 7 on the pin 8 through the linkage rod 605. This causes the friction between the pin 8 and the groove 7 to increase when the pin 8 slides along the groove 7, which in turn causes the expansion valve body 501 to jam. In order to reduce the friction between the pin 8 and the groove 7, ball bearings 9 are embedded at both ends of the pin 8. The ball bearings 9 can roll, and the pin 8 is slidably set in the groove 7 via the ball bearings 9.

[0083] The ball bearing 9 transforms the contact between the pin 8 and the groove 7 from surface contact sliding friction to point contact rolling friction. The rolling friction coefficient is much smaller than the sliding friction coefficient, which greatly reduces the resistance when the expanded diameter valve 501 slides, ensuring the smooth movement of the expanded diameter valve 501.

[0084] like Figure 1 , Figure 3 As shown, the circular gear 602 is driven to rotate by the power drive device 10;

[0085] The power drive device 10 includes a first drive motor 1001, and a drive gear 1002 is installed on the drive end of the first drive motor 1001. The drive gear 1002 meshes with the ring gear 602.

[0086] The first drive motor 1001 drives the drive gear 1002 to rotate, and the drive gear 1002 drives the ring gear 602 to rotate.

[0087] In order to fix the first drive motor 1001, a fixed mounting base 11 is installed on the outer wall of the circular tube body 1. A connecting plate 12 is installed at the bottom of the first drive motor 1001. The connecting plate 12 is connected to the fixed mounting base 11 by bolts 13 and nuts 14. Through the fixed connection between the connecting plate 12 and the fixed mounting base 11, the first drive motor 1001 is fixedly installed on the outer wall of the circular tube body 1.

[0088] In the gypsum slurry batching stage, the existing technology generally connects the power drive device 10 of different metering and conveying equipment to the control system. The control system dynamically adjusts the frequency of each power drive device 10 according to the proportion of each raw material. That is to say, in this solution, the power drive device 10 that drives the spring-shaped conveying rod 2 to rotate needs to be connected to the control system. When the conveying flow rate of the auxiliary dry material needs to be increased, the control system increases the frequency of the power drive device 10 that drives the spring-shaped conveying rod 2 to rotate. When the conveying flow rate of the auxiliary dry material needs to be reduced, the control system slows down the frequency of the power drive device 10 that drives the spring-shaped conveying rod 2 to rotate.

[0089] Furthermore, when the flow rate of the auxiliary dry material increases, the inner diameter of the expansion pipe section 5 increases synchronously; when the flow rate of the auxiliary dry material decreases, the inner diameter of the expansion pipe section 5 decreases synchronously. In order to enable the inner diameter of the expansion pipe section 5 to synchronously follow the increase or decrease of the flow rate of the auxiliary dry material, the first drive motor 1001 is connected to the control system. When the control system controls the flow rate of the auxiliary dry material to increase or decrease, it synchronously controls the inner diameter of the expansion pipe section 5 to increase or decrease.

[0090] The auxiliary dry material is prone to clumping when stored in the storage bin. This clumping can easily get stuck at the connection between the elastic connecting piece 502 and the expansion valve 501, thus affecting the expansion and contraction of the expansion pipe section 5. To prevent the clumped material from getting stuck at the connection between the elastic connecting piece 502 and the expansion valve 501, this invention designs a method to grind the clumped material before it is fed into the circular pipe body 1. Specifically, for example... Figure 1 , Figure 6 , Figure 7 As shown, a hopper 15 is provided at the bottom of the storage compartment, and the storage compartment is connected to the circular tube body 1 through the hopper 15;

[0091] A grinding roller 16 is installed inside the hopper 15. The surface of the grinding roller 16 is evenly distributed with protrusions 17. An arc-shaped screen 18 is installed inside the hopper 15 below the grinding roller 16.

[0092] The grinding roller 16 can rotate to grind the auxiliary dry material between the grinding roller 16 and the arc screen 18. The ground auxiliary dry material is fed into the cylindrical body 1 through the arc screen 18.

[0093] The protrusions 17 on the surface of the grinding roller 16 rotate with the grinding roller 16, and exert a squeezing and shearing effect on the auxiliary dry material in the feed hopper 15, breaking the agglomerated material into fine particles, and avoiding agglomerated material from entering the cylindrical tube body 1 as much as possible;

[0094] The arc-shaped screen 18 is located below the grinding roller 16. It only allows the auxiliary dry material with the required particle size after grinding to pass through the screen holes and enter the circular tube body 1. It intercepts large pieces of material that have not been completely ground, ensuring that the material entering the circular tube body 1 is uniform and fine particles. It is compatible with the pushing logic of the spring-shaped conveying rod 2 and the flow space of the expanded diameter pipe section 5, reducing the risk of blockage from the source.

[0095] Furthermore, the metering of agglomerated auxiliary dry materials is prone to deviation, while the uniform material after grinding and screening can ensure that the metering and conveying equipment can control the material flow more accurately, so that the conveying speed is consistent with the preset ratio.

[0096] The arc-shaped screen 18 is adapted to the shape of the grinding roller 16, so that the auxiliary dry material entering between the grinding roller 16 and the arc-shaped screen 18 can be ground. In order to install the arc-shaped screen 18 in the feeding hopper 15, protrusions 23 are connected to both sides of the arc-shaped screen 18, and grooves 24 are provided on the inner wall of the feeding hopper 15. The protrusions 23 are slidably disposed in the grooves 24, and the arc-shaped screen 18 is fixed in the feeding hopper 15 by the cooperation of the protrusions 23 and the grooves 24.

[0097] The arc-shaped screen 18 is prone to clogging of its mesh holes after long-term sieving. In order to facilitate cleaning of the arc-shaped screen 18, a disassembly port is provided on the side wall of the hopper 15 opposite to the end of the arc-shaped screen 18. The disassembly port is connected to the grooves 24 on both sides of the hopper 15. The arc-shaped screen 18 can be taken out and put back through the disassembly port.

[0098] After the arc-shaped screen 18 is installed in the hopper 15, the end of the arc-shaped screen 18 is located in the disassembly port. A small amount of material may pass through the mesh of the arc-shaped screen 18 and leak from the disassembly port. In order to prevent the material from leaking from the disassembly port, a sealing cap 26 is installed at one end of the arc-shaped screen 18. When the arc-shaped screen 18 is installed in the hopper 15, the sealing cap 26 can cover the disassembly port to prevent material leakage as much as possible.

[0099] To facilitate the removal and installation of the curved screen 18, a handle 27 is installed on the side of the sealing cover 26 away from the curved screen 18, and the curved screen 18 can be removed and installed by using the handle 27.

[0100] like Figure 1 As shown, in order to drive the grinding roller 16 to rotate, a second drive motor 19 is provided on the outer wall of the feeding hopper 15. The drive shaft of the second drive motor 19 passes through the inner wall of the feeding hopper 15 and is connected to the grinding roller 16.

[0101] In order to drive the spring-shaped conveyor rod 2 to rotate, a third drive motor 20 is installed on the outer wall of the cylindrical body 1 away from its outlet end, and the drive end of the third drive motor 20 is connected to the spring-shaped conveyor rod 2.

[0102] This invention provides a self-regulating gypsum board batching system, which further includes:

[0103] The first metering pump is used to meter and deliver the main water to the mixer.

[0104] The second metering pump is used to deliver the wet material into the mixer;

[0105] Auxiliary dry material conveying device, used to convey auxiliary dry materials into the mixer;

[0106] A belt scale is used to transport gypsum powder into the mixer;

[0107] The controller connects to the first metering pump, the second metering pump, the auxiliary dry material conveying device, and the metering belt scale. The controller dynamically adjusts the conveying frequency of the first metering pump, the second metering pump, the auxiliary dry material conveying device, and the metering belt scale according to the production raw material ratio.

[0108] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A clog-resistant auxiliary material conveying device, characterized in that, have: The circular tube body (1) has a side wall connected to a storage compartment, and the auxiliary dry material in the storage compartment is fed into the circular tube body (1); A spring-shaped conveying rod (2) is assembled inside the circular tube body (1) along the length direction of the circular tube body (1). The spring-shaped conveying rod (2) can rotate to push the auxiliary dry material fed into the circular tube body (1) toward the outlet of the circular tube body (1). An installation ring (3) is fitted onto the outer wall of the outlet end of the circular tube body (1), and the circumferential sidewall of the installation ring (3) is provided with multiple guide notches (4). An enlarged pipe section (5) is installed on the side wall of the mounting ring (3) away from the main body of the circular pipe (1). The enlarged pipe section (5) has multiple enlarged valves (501) and elastic connecting pieces (502) connecting two adjacent enlarged valves (501). The enlarged valves (501) are arranged in a one-to-one correspondence with the guide notch (4). Each enlarged valve (501) has a sliding cavity (503) on its inner side. The sliding cavity (503) has a first opening in the direction of the adjacent elastic connecting pieces (502) on both sides. The elastic connecting piece (502) is at least partially slidably embedded in the sliding cavity (503) through the first opening. The expanding valve (501) can slide outward along the guide notch (4) to increase the inner diameter of the expanding tube section (5), and can slide inward along the guide notch (4) to decrease the inner diameter of the expanding tube section (5). During the sliding of the expanding valve (501), the portion of the elastic connecting piece (502) embedded in the sliding cavity (503) extends outward or retracts into the sliding cavity (503) with the sliding action to fill the gap between adjacent expanding valves (501).

2. The anti-clogging auxiliary material conveying device according to claim 1, characterized in that, The sliding cavity (503) is also provided with a second opening on one side facing the mounting ring (3), and the elastic connecting piece (502) is attached to the side wall of the mounting ring (3) through the second opening on the side near the mounting ring (3).

3. The anti-clogging auxiliary material conveying device according to claim 1, characterized in that, The side of the elastic connecting piece (502) away from the mounting ring (3) is attached to the sidewall of the first opening; The spring-shaped conveying rod (2) extends into the interior of the enlarged diameter pipe section (5).

4. The anti-clogging auxiliary material conveying device according to claim 1, characterized in that, The bottom of the enlarged pipe section (5) is configured as an enlarged valve (501), and the two sides of the enlarged valve (501) extend to cover at least half of the height of the enlarged pipe section (5).

5. The anti-clogging auxiliary material conveying device according to claim 1, characterized in that, The expanding valve body (501) slides outward or inward along the guide notch (4) under the drive of the drive assembly (6); the drive assembly (6) includes: a bearing (601) disposed on the outer wall of the circular tube body (1) near its outlet end, a ring gear (602) sleeved on the outer wall of the bearing (601), a threaded sleeve (603) fixedly connected to the side of the ring gear (602) near the mounting ring (3), and a threaded slip ring (604) threadedly installed on the threaded sleeve (603); The threaded slip ring (604) is hinged to a plurality of linkage rods (605) on the side near the mounting ring (3). The linkage rods (605) are configured one-to-one with the guide notch (4). The sidewalls opposite to the guide notch (4) are provided with grooves (7). The end of the linkage rod (605) away from the threaded slip ring (604) is hinged to the expanded diameter valve body (501) through a pin (8). The two ends of the pin (8) are slidably disposed in the groove (7). The circular gear (602) can rotate to drive the threaded sleeve (603) to rotate, so that the threaded slip ring (604) moves along the length direction of the threaded sleeve (603); When the threaded slip ring (604) moves toward the expanding valve body (501), the linkage rod (605) drives the expanding valve body (501) to slide outward along the groove (7) via the pin (8). When the threaded slip ring (604) moves away from the expanding valve body (501), the linkage rod (605) drives the expanding valve body (501) to slide inward along the groove (7) via the pin (8).

6. The anti-clogging auxiliary material conveying device according to claim 5, characterized in that, Both ends of the pin (8) are fitted with balls (9), which can roll, and the pin (8) is slidably disposed in the groove (7) through the balls (9).

7. The anti-clogging auxiliary material conveying device according to claim 5, characterized in that, The circular gear (602) is driven to rotate by a power drive device (10); The power drive device (10) includes a first drive motor (1001), and a drive gear (1002) is installed on the drive end of the first drive motor (1001), which meshes with the ring gear (602); The first drive motor (1001) drives the drive gear (1002) to rotate, and the drive gear (1002) drives the ring gear (602) to rotate.

8. The anti-clogging auxiliary material conveying device according to claim 7, characterized in that, The outer wall of the cylindrical body (1) is fitted with a fixed mounting base (11), and the bottom of the first drive motor (1001) is fitted with a connecting plate (12). The connecting plate (12) is connected to the fixed mounting base (11) by bolts (13) and nuts (14).

9. The anti-clogging auxiliary material conveying device according to claim 1, characterized in that, The bottom of the storage compartment is provided with a feeding hopper (15), and the storage compartment is connected to the circular tube body (1) through the feeding hopper (15); The hopper (15) is equipped with a grinding roller (16), and the surface of the grinding roller (16) is evenly distributed with protrusions (17). An arc-shaped screen (18) is provided in the hopper (15) below the grinding roller (16). The grinding roller (16) can rotate to grind the auxiliary dry material between the grinding roller (16) and the arc screen (18). The ground auxiliary dry material is fed into the cylindrical body (1) through the arc screen (18). The outer wall of the feeding hopper (15) is provided with a second drive motor (19), and the drive shaft of the second drive motor (19) passes through the inner wall of the feeding hopper (15) and is connected to the grinding roller (16). A third drive motor (20) is installed on the outer wall of the cylindrical body (1) away from its outlet end, and the drive end of the third drive motor (20) is connected to the spring-shaped conveying rod (2).

10. A self-regulating batching system for gypsum board, characterized in that, The auxiliary dry material conveying device according to any one of claims 1-9 further includes: The first metering pump is used to meter and deliver the main water to the mixer. The second metering pump is used to deliver the wet material into the mixer; The auxiliary dry material conveying device is used to convey the auxiliary dry material into the mixer; A weighing belt is used to transport gypsum powder into the mixer; The controller is connected to the first metering pump, the second metering pump, the auxiliary dry material conveying device, and the metering belt scale. The controller dynamically adjusts the conveying frequency of the first metering pump, the second metering pump, the auxiliary dry material conveying device, and the metering belt scale according to the production raw material ratio.

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